KR20180090708A - Apparatus and method for transmitting/receiving of data in a wireless communication system - Google Patents

Abstract

This disclosure relates to a 5G or pre-5G communication system to support higher data rates after a 4G communication system such as LTE.
A transmission method according to an embodiment of the present invention is a method for transmitting different types of service data in a base station, the first service data to be transmitted to a first terminal is allocated through scheduling to transmit the first service data step; Identifying whether second service data for transmission to the first terminal or the second terminal is generated using at least a portion of the first resource during the transmission of the first service data to the first terminal; Allocating the second service data to at least a part of the first resource and transmitting the second service data when the second service data is generated; And instructing to notify the transmission of the second service data at a time point of transmission of an indication information at a time point closest to the transmission time point of the second service data among the subsequent time points including the transmission time point of the second service data, ; ≪ / RTI >

Description

[0001] APPARATUS AND METHOD FOR TRANSMITTING / RECEIVING OF DATA IN A WIRELESS COMMUNICATION SYSTEM [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for transmitting / receiving data in a wireless communication system, and more particularly, to a data transmitting / receiving apparatus and method for providing heterogeneous service data in a wireless communication system.

Efforts are underway to develop an improved 5G or pre-5G communication system to meet the growing demand for wireless data traffic after commercialization of the 4G communication system. For this reason, a 5G communication system or a pre-5G communication system is referred to as a 4G network (Beyond 4G Network) communication system or a post-LTE system (Post LTE) system.

To achieve a high data rate, 5G communication systems are being considered for implementation in very high frequency (mmWave) bands (e.g., 60 gigahertz (60GHz) bands). In order to mitigate the path loss of the radio wave in the very high frequency band and to increase the propagation distance of the radio wave, in the 5G communication system, beamforming, massive MIMO, full-dimension MIMO (FD-MIMO ), Array antennas, analog beam-forming, and large scale antenna technologies are being discussed.

In order to improve the network of the system, the 5G communication system has developed an advanced small cell, an advanced small cell, a cloud radio access network (cloud RAN), an ultra-dense network, (D2D), a wireless backhaul, a moving network, cooperative communication, Coordinated Multi-Points (CoMP), and interference cancellation Have been developed.

In addition, in the 5G system, the Advanced Coding Modulation (ACM) scheme, Hybrid FSK and QAM Modulation (FQAM) and Sliding Window Superposition Coding (SWSC), the advanced connection technology, Filter Bank Multi Carrier (FBMC) (non-orthogonal multiple access), and SCMA (sparse code multiple access).

Based on the development of various types of technologies, 5G system considers support for various services compared to existing 4G system. For example, the most representative services are mobile broadband (eMBB), ultra-reliable and low latency communication (URLLC), massive machine type communication, mMTC), and evolved multimedia broadcast / multicast service (eMBMS). Unlike the existing 4G system, the URLLC is a newly considered service in the 5G system and requires high reliability (packet error rate of 10 ^-5 ) and low delay (0.5 msec) in comparison with other services. In order to satisfy such a strict requirement, the URLLC service needs to apply a transmission time interval (TTI) shorter than the eMBB service, and various operating methods utilizing it are considered.

For example, in a downlink network environment, a scenario may be considered in which the eMBB service is scheduled based on the eMBB TTI and the URLLC service is scheduled based on a shorter TTI than the eMBB TTI. In this case, the base station may transmit the URLLC packet while transmitting the eMBB service packet. If the URLLC packet needs to be transmitted during the transmission of the eMBB service packet, some of the resources allocated to the eMBB service should be allocated to provide the URLLC service instead of the eMBB service data due to the characteristics of the URLLC service. When a resource is allocated to provide a URLLC service instead of the eMBB service data in some of the resources already allocated to the eMBB service, the eMBB recognizes the URLLC service data as eMBB service data and processes the URLLC service data May cause problems. As a result, the receiving performance of the eMBB is seriously deteriorated in the terminal receiving the service.

Accordingly, the present invention provides an apparatus and method for efficiently allocating resources when heterogeneous services having different characteristics are provided in a wireless communication system.

The present invention also provides an apparatus and method for increasing data reception efficiency when heterogeneous services having different characteristics are provided in a wireless communication system.

In addition, the present invention provides an apparatus and method for providing explicit or implicit resource allocation information to each service when heterogeneous services having different characteristics are provided in a wireless communication system.

In addition, the present invention provides an apparatus and method that can efficiently decode each service using explicit or implicit resource allocation information when heterogeneous services having different characteristics are provided in a wireless communication system.

The present invention also provides an apparatus and method for recognizing resources allocated to each service when heterogeneous services having different characteristics are provided in a wireless communication system.

A method of transmitting data according to an embodiment of the present invention is a method of transmitting different types of service data in a base station, the method comprising: allocating a first resource through scheduling of first service data to be transmitted to a first terminal, ; Identifying whether second service data for transmission to the first terminal or the second terminal is generated using at least a portion of the first resource during the transmission of the first service data to the first terminal; Allocating the second service data to at least a part of the first resource and transmitting the second service data when the second service data is generated; And instructing to notify the transmission of the second service data at a time point of transmission of an indication information at a time point closest to the transmission time point of the second service data among the subsequent time points including the transmission time point of the second service data, ; ≪ / RTI >

A data transmission apparatus according to an embodiment of the present invention includes a first service data generation unit for generating first service data to be transmitted to a first terminal based on scheduling information, A second service data generation unit for generating second service data to be transmitted to the first terminal or the second terminal; A frame generating unit configured to generate first data generated by the first service data generating unit and second data generated by the second service data generating unit into one frame; A wireless transmitter for transmitting data generated by the frame generator as a signal of a transmission band; And allocating a first resource to the first terminal by scheduling to provide the first service data to the first terminal and transmitting at least the first service data using the first resource to the first terminal, The first service data is transmitted to at least a part of the first resource, and the second service data is transmitted to the second terminal when the second service data is generated, And to transmit the second service data at a time point at which the second service data is transmitted at the time point at which the second service data is closest to the transmission time point of the second service data among the subsequent time points including the transmission time point of the second service data, And a controller for transmitting the control signal.

According to another aspect of the present invention, there is provided a method of receiving service data in a terminal, the method comprising: receiving first service data through a scheduled first resource; Detecting indication information indicating whether to transmit second service data in the first resource; Identifying whether the second service data is transmitted using the instruction information, detecting the second service data when the second service data is transmitted through the first resource, And removing the second service data and decoding only the received first service data.

A data receiving apparatus according to an embodiment of the present invention is a terminal apparatus for receiving data, comprising: a wireless receiving unit for converting a wireless signal received through a set band into a baseband signal; The method includes receiving data through a first resource allocated to the terminal, detecting indication information indicating whether to transmit second service data in the first resource, determining whether to transmit the second service data using the indication information, And a communication processor for detecting the second service data when the second service data is transmitted through the first resource and for removing the second service data and decrypting only the received first service data .

According to another embodiment of the present invention, there is provided a method for transmitting different types of service data in a base station, comprising: allocating and transmitting first service data to be transmitted to a first terminal through scheduling; Allocating and transmitting second service data of the same kind as the first service data to be transmitted to the second terminal to a second resource through scheduling; Identifying whether the first service data for transmitting to the first terminal using the at least a portion of the first resource during transmission of the first service data to the first terminal is different from the third service data; Allocating the third service data to at least a part of the first resource and transmitting the third service data when the third service data is generated; Identifying whether second service data for transmission to the second terminal and fourth service data of a different kind are generated using at least a portion of the second resource during transmission of the second service data to the second terminal; Allocating the fourth service data to at least a part of the second resource and transmitting the fourth service data when the fourth service data is generated; Wherein the third service data is transmitted at a time point at which the third service data is transmitted from the first resource to the first service, And setting and transmitting first indication information indicating transmission of the first indication information; And transmitting the fourth service data from the second resource, which is scheduled to transmit the second service data, among the subsequent time points including the transmission time point of the fourth service data, And setting and transmitting second instruction information indicating transmission of the service.

According to an embodiment of the present invention, when a heterogeneous service having different characteristics is provided in a wireless communication system, resources can be efficiently allocated and resources allocated to each service can be recognized. Also, according to an embodiment of the present invention, when heterogeneous services having different characteristics are provided in a wireless communication system, efficiency of transmission and reception of data can be increased. Also, according to an embodiment of the present invention, when heterogeneous services having different characteristics are provided in a wireless communication system, it is possible to provide explicit or implicit resource allocation information to each service, have.

FIG. 1A is an exemplary diagram for explaining a resource allocation unit in an eMBB service in a fifth generation wireless communication system,
1B is an exemplary diagram illustrating a case where a URLLC service is allocated to a resource allocation area of an eMBB service.
2 is a frame structure diagram including indication information for instructing transmission of second service data when second service data is transmitted in a part of first service data areas according to an embodiment of the present invention.
3A to 3D are exemplary diagrams for transmitting indication information in a specific cell or a base station according to another embodiment of the present invention.
4A to 4D are exemplary diagrams for transmitting indication information in a specific cell or base station according to another embodiment of the present invention.
FIG. 5A is a diagram for explaining a case where a frequency band for transmitting the direction information according to the present invention is set to the same frequency band for each base station or cell,
5B is a diagram for explaining a case where frequency bands for transmitting indication information according to the present invention are set to different frequency bands for each base station or each cell.
6A to 6D are exemplary diagrams for transmitting indication information based on resources allocated to a receiving terminal according to another embodiment of the present invention.
7A to 7D are exemplary diagrams for transmitting indication information based on resources allocated to a receiving terminal according to another embodiment of the present invention.
8A to 8C are diagrams illustrating a method of transmitting the instruction information when the sequence length is 4 according to an embodiment of the present invention.
9 is a frame structure diagram including indication information for instructing transmission of second service data when second service data is transmitted in a part of the first service data area according to another embodiment of the present invention.
10 is an exemplary diagram for explaining a case of applying a fixed phase-shifted QAM constellation according to an embodiment of the present invention.
11 is a block diagram of a base station apparatus according to an embodiment of the present invention.
12 is a block diagram of a receiving terminal according to an embodiment of the present invention.
FIG. 13 is a control flowchart when transmitting a first service data and a second service data in a base station according to an embodiment of the present invention.
FIG. 14 is a control flowchart when receiving a first service data and a second service data in a receiving terminal according to an embodiment of the present invention.
15 is a graph of the simulation result according to the present invention.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. It should be noted that the drawings of the present invention attached hereto are provided for the purpose of helping understanding of the present invention, and the present invention is not limited to the shape or arrangement exemplified in the drawings of the present invention. Further, the detailed description of well-known functions and constructions that may obscure the gist of the present invention will be omitted. In the following description, only parts necessary for understanding the operation according to various embodiments of the present invention will be described, and the description of other parts will be omitted so as not to obscure the gist of the present invention.

Prior to describing the present invention, a fifth generation (5G or New Radio) wireless communication system will be briefly described. The fifth generation wireless communication system has a very wide bandwidth in comparison with the existing third generation (3G) and fourth generation (4G or LTE or LTE-A) wireless communication systems. Also, in the existing third generation (3G) and fourth generation (4G or LTE or LTE-A) wireless communication systems, it was necessary to consider backward compatibility when defining the standard protocol. However, Defines standard protocols in consideration of forward compatibility. According to the policy of the standard protocol, the fifth generation wireless communication system defines a use case for three services. The three services defined in the fifth generation wireless communication system are as follows.

First, there is an enhanced mobile broadband (eMBB) service based on the enhanced transmission rate. Second, it is an enhanced Machine Type Communication (eMTC) service based on a large scale Internet. Finally, there is a data communication service that can acquire and transmit necessary information anytime and anywhere by wireless connection. Finally, there is a Ultra Low Reliability Low Latency (URLLC) Communication service.

In order to simplify the description, the above-mentioned services are referred to as' data communication 'or' data communication service 'or' eMBB 'or' eMBB service 'or' eMBB communication Services', and should be understood in the same sense even if the terms are used interchangeably.

The second service, a large scale Internet-based communication service, will be described using one of the "Internet of Things" or "Internet of Things" or "eMTC communication" or "eMTC communication service" or "eMTC service" Even if terms are used interchangeably, they should be understood in the same sense.

In addition, the third service, the Internet communication service based on the ultra-low latency and the high reliability, can be classified into 'ultra low delay service' or 'high reliability service' or 'ultra low delay communication' Delayed high reliability object Internet communication 'or' ultra low delay high reliability object internet communication service 'or' URLLC 'or' URLLC communication 'or' URLLC service 'or' URLLC communication service ' Even if used in combination, they should be understood in the same sense.

Hereinafter, with reference to FIGS. 1A and 1B, let us consider a resource provided with an eMBB service and a URLLC service.

FIG. 1A is an exemplary diagram for explaining a resource allocation unit in an eMBB service in a fifth generation wireless communication system, and FIG. 1B is an exemplary diagram for explaining a case where a URLLC service is allocated to a resource allocation region of an eMBB service.

First, referring to FIG. 1A, the horizontal axis is a time resource and the vertical axis is a frequency resource. In the wireless communication system, the allocation of resources can be allocated in frequency resources and time resource units. In FIG. 1, it is assumed that a certain frequency band or a predetermined number of frequency resources are allocated to frequency resource units. At this time, the time resources may be allocated to the fifth generation wireless communication system in the same or different manner depending on each service. In FIG. 1A, a time resource is allocated to an eMBB service. A unit for allocating time resources in the eMBB service, that is, a transmission time interval (TTI) is a long TTI (Long TTI) of 100 units. In the long TTI for allocating time resources to the eMBB service, a section 110 for transmitting an eMBB control channel for transmitting control information and a section 120 for transmitting eMBB service data are included.

1B is an exemplary diagram illustrating resources provided with an eMBB service and a URLLC service.

Referring to FIG. 1B, an eMBB service resource and a URLLC service resource are compared with each other. 1B, it is assumed that a predetermined frequency band or a predetermined number of frequency resources are allocated to the unit of the frequency resource as described above. In this case, resources are allocated to the eBB service resources in a long TTI 100 unit as described above. In the long TTI 100, a section 110 in which an eMBB control channel for transmitting control information is transmitted, Lt; / RTI > In addition, the URLLC service can be allocated resources in units of a short TTI 120 time interval rather than a long TTI 100 unit. The interval 120 in which data is transmitted within a long TTI 100 may include two or more short TTI 120 time interval units. In FIG. 1B, a form including three short TTIs 141, 142, and 143 is illustrated. However, the data transmission period 100 of the long TTI may be configured to include a larger number of short TTIs than the three short TTIs illustrated in FIG. 1B or to include a smaller number of short TTIs than the three short TTIs It is possible.

Hereinafter, a case will be described in which the respective services are allocated using the above-described FIG. 1A and FIG. 1B. As described above, in the case of providing an eMBB service to a specific terminal, the wireless communication system can allocate resources by eMBB TTI unit, that is, a long TTI unit 100. Therefore, as described in FIG. 1A, one eMBB TTI can be divided into an eMBB control channel 110 for transmitting control information and an eMBB service data 140. The base station inserts control information necessary for receiving data in a terminal receiving the eMBB service data 140 in the eMBB control channel 110 and transmits the inserted control information. Accordingly, the eBB receiving terminal can receive the eMBB control channel 110 first, and demodulate and decode the eMBB service data 140 based on the information included in the eMBB control channel 110.

On the other hand, URLLC data is data requiring ultra-low delay and high reliability. Therefore, when the URLLC data occurs in a burst, it must be transmitted urgently. Therefore, as illustrated in FIG. 1B, resources should be allocated in units of a very short TTI, and data must be transmitted as soon as they occur. Since data must be transmitted in such a short TTI unit, frequency resources that can transmit usable frequency resources, for example, URLLC data, may already be allocated to other terminals. In this case, when considering the priority between the eMBB service and the URLLC service, the URLLC service has a higher priority. Therefore, it is necessary to allocate resources necessary for the URLLC service using some of the resources already allocated to the eMBB service, and to transmit the URLLC data.

FIG. 1B illustrates a case where resources are allocated to transmit some URLLC data among some eMBB resources allocated to a specific UE. That is, when the eMBB resource 100 is used to transmit URLLC data to some eMBB resources 100 allocated to a specific terminal, the eMBB data area 140 is filled with eMBB data to be transmitted to the corresponding terminal. Therefore, the base station can puncture or remove data allocated to some of the resources of the eMBB data area 140, insert the URLLC data 131 at the removed location, and transmit the inserted URLLC data 131. When the base station punctures or removes the data allocated to some of the resources of the eMBB data area 140 and inserts the URLLC data 131 at the removed location and transmits the URLLC data 131, the receiving terminal, which is provided with the eMBB service, Data other than data can be transmitted and transmitted.

When the receiving terminal receiving the eMBB service receives the URLLC data to be transmitted to another terminal within the long TTI 100 allocated to the receiving terminal, the receiving terminal performs demodulation and decoding including URLLC data instead of its own data, The received data will have a serious error. If the receiving terminal fails to demodulate and decode, it requests retransmission to the base station. Also, when using a hybrid automatic retransmission (HARQ) scheme for combining and demodulating received data, it is possible to decode the erroneous data by recognizing the erroneous data as its own data, so that it may request more retransmissions than the general case . As a result, a lot of retransmissions are required in the system due to the bursty URLLC data, which may waste bandwidth and waste unnecessary power in the terminal.

Accordingly, the present invention described below explains a technique for providing an apparatus and method for enabling an eMBB receiving terminal to recognize a URLLC service using a part of resources allocated to an eMBB service as shown in FIG. 1B . That is, the present invention provides an apparatus and method for instructing a receiving terminal of a first service when second service data is transmitted together using a part of resources assigned to the first service, I will explain. Such an indication may be explicit or implicit. In addition, an apparatus and a method for increasing the processing efficiency of data received using the information explicitly or implicitly indicated at the receiving terminal will be described.

In the following description of the present invention, various forms of examples for utilizing instruction information and various forms for transmitting instruction information will be described. In the following, the present invention will also be described with respect to methods for utilizing them in a receiver.

≪ Method for transmitting instruction information >

Hereinafter, different types of services exist, and at least some of the resources allocated to the first service are assigned second service data, so that the first service data and the second service data are used together with the first service resource The allocation position and the frame structure of the instruction information for indicating that the second service data is included will be described.

2 is a frame structure diagram including indication information for instructing transmission of second service data when second service data is transmitted in a part of first service data areas according to an embodiment of the present invention.

The first service may be an eMBB service as described above, and the second service may be a URLLC service. Therefore, in the embodiment of FIG. 2, it is assumed that the first service is an eMBB service and the second service is a URLLC service. However, it is obvious that the present invention can be applied to a service having a different name even if it has a characteristic of the first service and a characteristic of the second service. The first service is a general data service, and may be a service in which resources are allocated in advance and data is transmitted using the allocated resources. Also, the second service can be a burst type data service requiring ultra-low delay and high reliability.

Referring to FIG. 2, the horizontal axis is a time resource and the vertical axis is a frequency resource, as illustrated in FIGS. 1A and 1B. The frequency resource of the vertical axis may be the entire frequency band that can be used or allocated in the fifth generation wireless communication system, or may be the transmission / reception band of a specific terminal.

In FIG. 2, a slot 100 and a mini-slot 120 are exemplified. One slot corresponds to a long TTI (long TTI), which is a transmission unit of one first service described in FIGS. 1A and 1B, , And the minislot 120 may be a short TTI (short TTI).

FIG. 2 is an example of a case where one slot 100 is composed of seven minislots. One or more OFDM symbols may be included in one minislot 120. In the embodiment of the present invention, a description will be made on the assumption that a single MINI slot 120 is composed of two OFDM symbols. In FIG. 2, an eMBB # 1 resource 201 allocated to a first terminal and an eMBB # 2 resource 202 allocated to a second terminal are illustrated. The base station can transmit data using the frequency resource band allocated in the entire time interval within the slot 100, respectively, in the eMBB # 1 resource 201 allocated to the first terminal and the eMBB # 2 resource 202 allocated to the second terminal. At this time, as described with reference to FIG. 1B, it may happen that the second service burst in the specific time domain, that is, the transmission of the URLLC service data 131, is required. As shown in FIG. 2, the URLLC service data 131 can be transmitted using some resources of the eMBB # 1 resource 201 allocated to the first terminal and the eMBB # 2 resource 202 allocated to the second terminal. As another example, if the URLLC service data is smaller, the URLLC service data 131 may be transmitted using only some resources of the eMBB # 1 resource 201 allocated to the first terminal, or a part of the eMBB # 2 resource 202 allocated to the second terminal May be transmitted using only resources.

Also, in the embodiment of the present invention, a plurality of mini-slots included in one slot 100 may be configured as one group. In the example of FIG. 2, except for the first mini-slot in which the control information of the first service is transmitted, the remaining six mini-slots are grouped into three mini-slots. Therefore, except for the first minislot including the control channel for transmission of the first service data, the second minislot to the fourth minislot are defined as one minislot group 210 in the slot 100, And the mini-slot to the seventh mini-slot are defined as another mini- As described above, the mini-slots are grouped into one slot 100 and the second service can be notified in each group.

In the embodiment of FIG. 2 according to the present invention, in order to notify whether the URLLC service data is present in one slot, reference information And 211, 212, 213, 214, 221, 222, 223, and 224, respectively. At this time, reference numerals 211, 212, 213, 214, 221, 222, 223 and 224 may be preset positions.

In FIG. 2, when the instruction information is transmitted, the position can be fixed and transmitted in advance so that all the terminals in the cell can receive the instruction information in the same area, considering the complexity of decoding in decoding of the eMBB service terminal. That is, it is possible to configure such that the position is not changed every slot and is transmitted at the same position. Accordingly, the base station transmitting the data can more easily configure the data for transmission, and the receiving terminal can always check whether the second service, that is, the URLLC service data, exists at the same position.

Also, the instruction information does not require much information since it only needs to inform the presence or absence of the second service data, that is, the URLLC service data. Therefore, the instruction information can be composed of one bit and transmitted. Also, in order to reduce decoding complexity of the UE, on / off information of the instruction information may be configured to be transmitted in advance as higher signaling or higher layer information. The on / off information of the instruction information will be described in more detail below. Also, since the location of the instruction information is previously set in the base station, rate matching can be performed in advance when the first service data, that is, the eMBB service data is configured. Also, the base station may apply a scheme of transmitting only the first service data without transmitting the indication information at the location or the resource set for transmitting the indication information when the second service does not exist. If the instruction information is not transmitted, that is, the resource is not allocated to the instruction information, the base station can perform rate matching without considering the position of the instruction information. However, the receiving terminal may always try to detect the indication information at the position where the indication information of the second service data is transmitted. If the base station or the cell informs that the indication information of the second service data is not transmitted in advance through a specific upper message or signaling, it may not attempt to detect the indication information during a time when the upper message or signaling is valid.

If it is not informed in advance through signaling or the like, the receiving terminal must always attempt to detect the indication information at the location of the indication information transmission resource for notifying the presence of the second service. At this time, when it is detected that there is no indication information, it may be a case that the first service data is composed and transmitted. The base station or the cell allocates indication information to the resource of the indication information only when the second service data is generated, and transmits the indication information together with the indication information or the second service data first, To inform the receiving terminal that the second service data has been transmitted.

Also, as shown in FIG. 2, one or more minislot (s) may be grouped to provide indication information on the presence or absence of the second service data for each group, thereby improving the eMBB decoding latency in the receiving terminal can do. In addition, since the UE receiving the first service data can perform channel decoding on the Coding Block (CB) on a group basis based on the instruction information included in the group of minislots, the UE can minimize the decoding delay . As the decoding delay is reduced, the terminal can reduce the use of an additional memory (buffer), thereby reducing the complexity and power consumption of the terminal.

[0041] Let us consider another embodiment according to the present invention based on the above-described method.

3A to 3D are exemplary diagrams for transmitting indication information in a specific cell or a base station according to another embodiment of the present invention.

3A to 3D will be described based on the contents of FIG. 2 described above. Therefore, as described with reference to FIG. 2, the horizontal axis represents time resources and the vertical axis represents frequency resources. The frequency resource of the vertical axis may be the entire frequency band that can be used or allocated in the fifth generation wireless communication system, or may be the transmission / reception band of a specific terminal. Generally, the entire band of the fifth generation wireless communication system is a very wide band. Therefore, it is unreasonable in the terminal to search all the bands of the fifth generation wireless communication system considering the power consumption of the terminal. Therefore, in the following description, it is assumed that the vertical axis is a transmission / . Also, the same reference numerals are used for the same parts among the reference numerals used in the drawings described above.

3A and 3B illustrate a case in which one slot 100 is composed of seven mini-slots as described above. One mini-slot 120 may include one or more OFDM symbols, and the mini-slot 120 includes two OFDM symbols as described above. Also in FIG. 3A, an eMBB # 1 resource 201 allocated to the first terminal and an eMBB # 2 resource 202 allocated to the second terminal are illustrated. Here, each of the eMBB service data may be first service data. The base station can transmit data using the frequency resource band allocated in the entire time interval within the slot 100, respectively, in the eMBB # 1 resource 201 allocated to the first terminal and the eMBB # 2 resource 202 allocated to the second terminal.

Referring to FIG. 3A, in the example of FIG. 3A, a resource of a specific frequency band among the entire frequency band or the transmission / reception frequency band of the terminal is allocated as a resource for transmitting indication information. As illustrated in FIG. 3A, the instruction information 301, 302, 303, 304, 305, 306, and 307 illustrate transmission in units of minislots in a specific band. Each of the instruction information 301-307 can indicate whether or not the second service data is transmitted in the corresponding minislot. For example, when the transmission of the URLLC service data, which is the second service data, is transmitted in the third minislot, only the indication information 303 of the third minislot indicates that there is URLLC service data transmission, and the indication information 301, 302 , 304, 305, 306, and 307 can indicate that no URLLC service data is transmitted.

In addition, as described above, the instruction information may be transmitted only when the second service data exists. For example, when the transmission of the URLLC service data, which is the second service data, is transmitted in the third minislot, only the indication information 303 of the third minislot indicates that there is URLLC service data transmission, and the indication information 301, 302 , 304, 305, 306, and 307, e-MBB service data may be transmitted without transmitting the URLLC service data transfer instruction information.

FIG. 3B is a modified embodiment of FIG. 3A as another embodiment of the present invention. 3B, it can be confirmed that the instruction information is not transmitted in only the first mini-slot. The control channel can be transmitted in the first minislot in one slot 100 as described in FIG. Therefore, it is assumed that the control channel is not transmitted in the first minislot of each slot. If the control channel is not transmitted, the receiving terminal can not demodulate and decode the entire data of the corresponding slot. Therefore, it may be set to not transmit the second service data in the first minislot of each slot 100. That is, in the example of FIG. 3B, when the instruction information 302, 303, 304, 305, 306, 307 is transmitted in the same manner as in FIG. 3A from the second minislot to the seventh minislot except for the first minislot of the slot to be.

3B, each of the instruction information 302-307 may indicate whether or not the second service data is transmitted in the corresponding minislot. For example, when the transmission of the URLLC service data is transmitted in the second minislot, only the indication information 302 of the second minislot indicates that there is URLLC service data transmission, and the indication information 303, 304, 305, 306, At 307, it is possible to indicate that there is no transmission of URLLC service data.

In addition, as described above, the instruction information may be transmitted only when the second service data exists. For example, when the transmission of the URLLC service data, which is the second service data, is transmitted in the second minislot, only the indication information 302 of the second minislot indicates that there is URLLC service data transmission and the indication information 304, 305 , 306, and 307 may transmit the e-MBB service data without transmitting the URLLC service data transfer instruction information.

Next, referring to FIG. 3C, which is another embodiment, mini-slots may be grouped into a predetermined number of units as described with reference to FIG. When one slot is composed of seven minislots, the first slot may be a minislot through which the control channel is transmitted, as described above. Thus, the minislots in which the second service data can be actually transmitted can be from the second minislot to the seventh minislot. Accordingly, FIG. 3C illustrates a case where six mini-slots from the second mini- slot to the seventh mini- slot are divided into two groups 310 and 320. In FIG.

In the embodiment of FIG. 3C, one instruction information 311 and 321 is transmitted for each group. That is, it is the case that only one instruction information 311 or 321 indicates whether or not the second service data is transmitted in at least one of the minislots in the minislot group. For example, if the URLLC data, which is the second service data, is transmitted only in the fifth mini-slot, the instruction information 311 of the first group 310 is set to indicate that the second service data is not transmitted. Next, the instruction information 321 of the second group 320 including the fifth minislot is set to indicate that the second service data is included in the group and transmitted.

In addition, as described above, the instruction information may be transmitted only when the second service data exists. For example, when the transmission of the URLLC service data, which is the second service data, is transmitted in the fifth minislot, the indication information 311 of the first group 310 transmits the eMBB data without transmitting the indication information because the second service data is not transmitted . Next, the instruction information 321 of the second group 320 including the fifth minislot is transmitted by including the second service data in the corresponding group, so that the instruction information 321 can be allocated to the corresponding resource and transmitted. At this time, the instruction information 321 can be set to indicate that the second service data is transmitted.

Referring to FIG. 3D which is another embodiment, the case of setting the instruction information 331 in units of one slot instead of the mini-slots. When the second service data is transmitted in at least one of the first minislots to the seventh minislots, the instruction information 331 set in the last minislot of the corresponding slot 100 is set to notify that the second service data is transmitted . On the other hand, if there is no transmission of the second service data in all of the first minislots to the seventh minislots, the instruction information 331 set in the last minislot of the corresponding slot 100 can be set to inform that the second service data is not transmitted have.

In a case where no second service data is transmitted in the first minislot to the seventh minislot, it is possible to transmit the eMBB data without transmitting the instruction information 331 set in the last minislot of the corresponding slot 100.

As shown in FIGS. 3A to 3D, it is possible to notify whether or not the second service data is transmitted for each of the minislots, or to group the several minislots within one slot to notify whether or not the second service data is transmitted within the grouping, It may be a case where the transmission of the second service data is notified in units of slots instead of slots. That is, in the embodiment of FIGS. 3A to 3D, by using only the resource of the minimum unit frequency band for transmitting indication information in one set unit, for example, a minislot, a group of minislots, or a slot, As shown in FIG. 3A to 3D, there is an advantage that a waste of unnecessary bandwidth in the wireless communication system can be reduced.

However, when the instruction information is transmitted once using only the resource of the minimum unit frequency band as shown in FIGS. 3A to 3D, the receiver may not accurately detect it. For example, the radio channel conditions of the resource may suddenly become poor, deep fading, severe interference may occur. In this way, when the indication information is transmitted in each base station or cell only once in a minislot, a group of minislots, or a slot, a reception error may occur. In the case where a reception error occurs, it can be understood that it is the same as the case where there is no corresponding instruction information as described in the related art.

Therefore, another embodiment of the present invention will be described with reference to FIGS. 4A to 4D.

4A to 4D are exemplary diagrams for transmitting indication information in a specific cell or base station according to another embodiment of the present invention.

4A to 4D will also be described based on the contents of FIG. 2 described above. Therefore, as described with reference to FIG. 2, the horizontal axis in FIGS. 4A to 4D is a time resource, and the vertical axis is a frequency resource. The frequency resource of the vertical axis may be the entire frequency band that can be used or allocated in the fifth generation wireless communication system, or may be the transmission / reception band of a specific terminal. Generally, the entire band of the fifth generation wireless communication system is a very wide band. Therefore, it is unreasonable in the terminal to search all the bands of the fifth generation wireless communication system considering the power consumption of the terminal. Therefore, in the following description, it is assumed that the vertical axis is a transmission / . 4A to 4D, the same reference numerals are used for the same parts among the reference numerals used in the drawings described above.

4A to 4D illustrate a case where one slot 100 is composed of seven mini-slots as described above. One mini-slot 120 may include one or more OFDM symbols, and the mini-slot 120 includes two OFDM symbols as described above. Also in FIG. 4A, the eMBB # 1 resource 201 allocated to the first terminal and the eMBB # 2 resource 202 allocated to the second terminal are illustrated. Here, each of the eMBB service data may be first service data. The base station can transmit data using the frequency resource band allocated in the entire time interval within the slot 100, respectively, in the eMBB # 1 resource 201 allocated to the first terminal and the eMBB # 2 resource 202 allocated to the second terminal.

Referring to FIG. 4A, in the example of FIG. 4A, a plurality of fixed frequency bands of the entire frequency band or the transmission / reception frequency band of the terminal are allocated as the resources for transmitting the instruction information. As illustrated in FIG. 4A, one slot 100 may be composed of the first minislot to the seventh minislots. In the first mini slot, the instruction information 301, 401, 411, and 421 are transmitted in four different fixed frequency bands. Also, in the second minislot, the instruction information 302, 402, 412, and 422 are transmitted in the same four frequency bands as the first minislot. In the third minislot to the seventh minislot, And transmits instruction information 303, 403, 413, 423, 304, 404, 414, 424, 305, 405, 415, 425, 306, 406, 416, 426, 307, 407, 417, 427 in four frequency bands. As shown in FIG.

When the above method is used, it is possible to indicate whether or not the second service data is transmitted in units of mini-slots. For example, when the transmission of the URLLC service data, which is the second service data, is transmitted in the third minislot, only the instruction information 303, 403, 413, 423 of the third minislot indicates that there is URLLC service data transmission, May indicate that there is no transmission of URLLC service data.

For example, when the transmission of the URLLC service data, which is the second service data, is transmitted in the third minislot, only the instruction information 303, 403, 413, 423 of the third minislot indicates that there is URLLC service data transmission, In the instruction information of the minislots, it is also possible to set to transmit the eMBB data without transmitting the transmission instruction information of the URLLC service data.

Fig. 4B is a modified embodiment of Fig. 4A as another embodiment of the present invention. Referring to FIG. 4B in comparison with FIG. 4A, it can be confirmed that the instruction information is not transmitted in only the first mini-slot. The control channel can be transmitted in the first minislot in one slot 100 as described in FIG. Therefore, it is assumed that the control channel is not transmitted in the first minislot of each slot. If the control channel is not transmitted, the receiving terminal can not demodulate and decode the entire data of the corresponding slot. Therefore, it may be set to not transmit the second service data in the first minislot of each slot 100. That is, in the example of FIG. 4B, the instruction information 302, 402, 412, 422, 303, 403, 413, 423 in the same manner as FIG. 4A from the second minislot to the seventh minislot except for the first minislot of the slot , 304, 404, 414, 424, 305, 405, 415, 425, 306, 406, 416, 426, 307, 407, 417,

4B, the instruction information transmitted in one minislot may indicate whether or not the second service data is transmitted in the corresponding minislot. For example, when the transmission of the URLLC service data is transmitted in the second minislot, only the instruction information 302, 402, 412, 422 of the second minislot indicates that there is URLLC service data transmission, and in the instruction information of the remaining minislots, Indicating that there is no transmission of service data.

Also, for example, when the transmission of the URLLC service data is transmitted in the second minislot, only the indication information 302, 402, 412, 422 of the second minislot indicates that there is URLLC service data transmission, It may be configured to transmit eMBB data without transmitting URLLC service data transfer instruction information.

Next, referring to FIG. 4C, which is another embodiment, mini-slots may be grouped into a predetermined number of units as described with reference to FIG. When one slot is composed of seven minislots, the first slot may be a minislot through which the control channel is transmitted, as described above. Thus, the minislots in which the second service data can be actually transmitted can be from the second minislot to the seventh minislot. Accordingly, FIG. 3C illustrates a case in which six mini-slots from the second mini- slot to the seventh mini- slot are divided into two groups 410 and 420, respectively.

In the embodiment of FIG. 4C, the instruction information 411, 412, 413, 414, 421, 422, 423, and 424 are transmitted in the bands of the preset frequency resources for each group. That is, it is determined whether or not the second service data is transmitted in at least one of the minislots in the corresponding slot, so that the instruction information included in the group of the minislots is notified. For example, when the URLLC data, which is the second service data, is transmitted only in the fifth minislot among the minislots illustrated in FIG. 4C, the instruction information 411, 412, 413, and 414 included in the first group 410 indicates that the second service data Not to be transmitted. Next, the instruction information 421, 422, 423, and 424 of the second group 420 including the fifth minislot is set to indicate that the second service data is included in the group and transmitted.

Also, for example, when the URLLC data, which is the second service data, is transmitted only in the fifth minislot among the minislots illustrated in FIG. 4C, the instruction information 411, 412, 413, and 414 included in the first group 410 is transmitted to the second service It may be configured to transmit the first service data without transmitting the data transfer instruction information. Next, the instruction information 421, 422, 423, and 424 of the second group 420 including the fifth minislot is set to indicate that the second service data is included in the group and transmitted.

Referring to FIG. 4D, the instruction information 431, 432, 433, and 434 are set in units of one slot instead of mini-slots. When the second service data is transmitted in at least one of the first minislot to the seventh minislot, the instruction information 431, 432, 433, 434 set in the last minislot of the corresponding slot 100 is transmitted to the second service It can be set to notify that data is transmitted. On the other hand, if there is no transmission of the second service data in the first minislot to the seventh minislot, the second service data is not transmitted to the instruction information 431, 432, 433, 434 set in the last minislot of the corresponding slot 100 Can be set.

If there is no transmission of the second service data in all of the first minislot to the seventh minislot, the instruction information 431, 432, 433, and 434 set in the last minislot of the corresponding slot 100 is transmitted as the second service data transmission instruction information And transmit the first service data without transmitting the first service data.

In the above-described FIGS. 4A to 4D, a method for improving the reliability of the instruction information has been described. That is, in order to overcome the situation where the specific frequency band to which the instruction information is transmitted is deeper into de-fading, a method of transmitting using a plurality of location resources has been described.

3A to 3D and FIG. 4A to FIG. 4D, in the case of FIGS. 3A to 3D, one instruction information is transmitted in units of minislots or per group or slot unit of minislots . On the other hand, in the case of FIGS. 4A to 4D, a plurality of pieces of instruction information are transmitted in units of mini-slots or groups of mini-slots or slots. Therefore, in the case of FIGS. 4A to 4D, since the probability of acquiring the instruction information in the receiving terminal is increased as compared with the case of FIG. 3A to FIG. 3D, there is an advantage that a more stable service can be provided. On the other hand, the case of FIGS. 4A to 4D may cause a waste of bandwidth than the cases of FIGS. 3A to 3D. Therefore, it is desirable to set the number of instruction information to be transmitted in each group or each slot of each of the minislots or minislots to an appropriate number of times in terms of bandwidth and stability. This can be set through experimentation in a real environment or simulation results based on a real environment.

In the present invention described above, a structure considering the decoding complexity of the first service data, that is, the eMBB service data, is proposed in the receiving terminal when the instruction information is transmitted. That is, it is possible to reduce the complexity of decoding the first service data in the receiving terminal by setting a specific position in advance and transmitting instruction information only at the corresponding position. In addition, the receiving terminal monitors only a preset location, thereby recognizing whether or not the second service data, that is, the URLLC service data, is transmitted. Also, since the presence or absence of the second service data is informed through the indication information in units of groups of mini-slots, the amount of indication information can be greatly reduced (several bits), and the complexity is greatly reduced . Also, since a resource region used as indication information is preset in a base station or a cell corresponding to a transmitter, rate matching of information to be transmitted can be performed in consideration of this.

In addition, in a base station or a cell corresponding to a transmitter, rate matching is performed on information to be transmitted without considering a resource area used as indication information. If the second service transmission indication information is not transmitted 1 service data is transmitted. If the second service transmission instruction information is transmitted, the first service data is punctured or removed in the corresponding resource area, and then instruction information for notifying the transmission of the second service data is transmitted .

Meanwhile, according to the embodiment described above, the decoding latency for the eMBB service data, which is the first service data, can be minimized. Generally, a plurality of code blocks may exist in a resource area allocated for an eMBB, and a receiving terminal may perform channel decoding on a code block basis while receiving an eMBB signal. If the URLLC service data, which is the second service data, is transmitted by puncturing or removing the first service data in the resource area allocated to the first service, the indication information indicating that the first service data is removed is transmitted before the channel decoding And channel decoding should be performed in the state of removing the first service data. If the instruction information exists only in the last part of the eMBB allocation resource, the channel decoding can not be performed on the previously received data and the reception of the corresponding instruction information should be awaited. That is, the reception terminal side must additionally include a buffer for storing the received data, and the decoding process may also be delayed. Therefore, it is possible to prevent the indication information from being transmitted by each minislot or group of minislots among the measures according to the present invention described above. In addition, when the structure according to the present invention is applied, the receiving terminal can receive at least one indication information included in a group of minislots and perform channel decoding using code blocks in the group of minislots, The complexity of the terminal and the delay of the data processing can be prevented.

In addition, in the present invention described above, the overhead of the instruction information can be minimized. The overhead of the instruction signal can be minimized by indicating only whether or not the second service data, that is, the URLLC service data, is transmitted (i.e., puncturing or removing) the first service data in units of mini-slots. In order to notify only whether or not the second service is transmitted within the group of mini-slots, the indication information can be composed of only one bit. The specific configuration of the instruction information will be described in more detail below.

On the other hand, the frequency bands set for transmitting the instruction information in the methods of Figs. 3A to 3D and Figs. 4A to 4D described above have been described only from the viewpoint of one base station. However, in a real wireless environment, a plurality of base stations are adjacent to each other to form a network. Thus, in an actual wireless network, it may be influenced by a signal received from an adjacent base station at the edge or cell edge of the base station. Accordingly, a method for transmitting instruction information more securely is needed. Hereinafter, an instruction information transmission method considering neighboring base stations will be described.

FIG. 5A is a diagram for explaining a case where frequency bands for transmitting indication information according to the present invention are set to the same frequency band for each base station or cell, FIG. 5B is a diagram for explaining a frequency band for transmitting indication information according to the present invention, Is set to a different frequency band for each base station or cell.

First, referring to FIG. 5A, an example of a case where instruction information is transmitted in each slot in the first cell 510, the second cell 520, and the third cell 530 is illustrated. In the example of FIG. 5A, the instruction information is transmitted by the transmission method of FIG. 4C. However, the transmission method of FIG. 5A may be any of the instruction information transmission methods of FIGS. 3A to 3D and the transmission methods of FIGS. 4A to 4D. In addition, the first cell 510, the second cell 520, and the third cell 530 illustrated in FIG. 5A may be adjacent cells.

In the first cell 510, three instruction information items 511, 512 and 513 are transmitted using three frequency resources preset in the fourth mini-slot, and three instruction information items 511, 512 and 513 are transmitted using the same three frequency resources in the seventh mini- 514, 515 and 516 are transmitted. Also, in the second cell 520, three instruction information items 521, 522 and 523 are transmitted using three frequency resources preset in the fourth mini-slot, and three instruction information items 521, 522 and 523 are transmitted using the same three frequency resources in the seventh mini- Information 524, 525, 526 is transmitted. In the last illustrated third cell 530, three pieces of instruction information 531, 532, and 533 are transmitted using the three preset frequency resources in the fourth minislot, and the same three frequency resources are used in the seventh minislot Three instruction information items 534, 535, and 536 are transmitted. In this case, it can be understood through the example of FIG. 5A that the three frequency resources preset in the first cell 510, the second cell 520, and the third cell 530 are resources of the same frequency band.

That is, in FIG. 5A, the frequency resources to which the direction information is transmitted are the same in all the cells 510, 520, and 530. As described above, when the indication information is transmitted using the same frequency resources in all the cells 510, 520, and 530, it is preferable to use a sequence having an excellent correlation characteristic among neighboring cells. This will be described in more detail in the following description of the drawings.

Next, referring to FIG. 5B, an example of a case where the instruction information is transmitted in each slot in the first cell 510, the second cell 520, and the third cell 530 is illustrated. Also in the example of FIG. 5B, the case where the instruction information is transmitted by the transmission method of FIG. 4C is exemplified. Also, the transmission method of FIG. 5B may be any of the instruction information transmission methods of FIGS. 3A to 3D and the transmission methods of FIGS. 4A to 4D as described in FIG. 5A. In addition, the first cell 510, the second cell 520, and the third cell 530 illustrated in FIG. 5B may be adjacent cells.

In the first cell 510, three instruction information items 511, 512, and 513 are transmitted using three frequency resources preset in the fourth mini-slot, and three same frequency resources are used in the seventh mini- And three instruction information 514, 515, and 516 are transmitted.

In the second cell 520, three pieces of instruction information 521, 522, and 523 are transmitted using the three frequency resources preset in the fourth minislot. In the seventh minislot, the frequency resources Three pieces of instruction information 524, 525, and 526 are transmitted using the same three frequency resources.

In the last illustrated third cell 530, three pieces of instruction information 531, 532, and 533 are transmitted using the three preset frequency resources in the fourth minislot. In the seventh minislot, instruction information is transmitted in the fourth minislot Three pieces of instruction information 534, 535, and 536 are transmitted using the same three frequency resources as the transmitted frequency resources. In this case, it can be understood through the example of FIG. 5B that the three frequency resources preset in the first cell 510, the second cell 520, and the third cell 530 are resources of different frequency bands. That is, the instruction information 521, 524 transmitted through the first frequency resource in the second cell 520 is a different resource from the first frequency resource of the first cell 510 and is also a resource different from the first frequency resource of the third cell 530 . And is also a resource different from the first frequency resource of the first cell 510 and the first frequency resource of the third cell 530.

That is, the following two rules apply to allocation of frequency resources for transmitting indication information between neighboring cells according to the present invention illustrated in FIG. 5B. First, in each cell 510, 520, and 530, indication information is transmitted using frequency resources at the same position. Second, directional information is transmitted between adjacent cells using different frequency resources, that is, frequency resources that do not overlap with adjacent cells. By applying these two rules, it is possible to minimize interference between cells and influence at the cell edge. In addition, because the specific frequency resources are fixedly allocated in the same cell, the complexity of the receiving terminal can be reduced. On the other hand, when different frequency resources are used between neighboring cells as shown in FIG. 5B, the power of the indication information may be configured to be higher than the data symbols by power boosting. This makes it possible to secure higher reliability in reception of the instruction information at the receiving terminal.

On the other hand, a method of setting the frequency band set for transmitting the instruction information to be transmitted using different frequency resources for each of the base station and the cell can be set in various forms. First, in the standard protocol, the location of the frequency resource can be determined using information of the base station or the cell, for example, identification information. Second, it is also possible to control the frequency resources of the respective base stations or the cells to be different from each other in the nodes of the upper layer controlling the base stations or the cells. The second method may be defined in the standard protocol or may be left at the discretion of each operator. Third, the base stations may set frequency resources for transmitting their own instruction information in a random form. If the first to third methods are used, the base stations may inform all the terminals included in the base station or the active terminals performing the communication by using the higher layer signal or the broadcast signal, the frequency resource location of the indication information.

In the above description, the contents for assigning the instruction information to each base station or the cell have been described. However, it may be configured to transmit the instruction information based on the resource allocated to the receiving terminal. That is, instruction information may be transmitted in the corresponding resource based on the resource allocated to the receiving terminal that receives the eMBB data that is the first service data. Hereinafter, methods of transmitting indication information from a resource allocated to a receiving terminal will be described.

6A to 6D are exemplary diagrams for transmitting indication information based on resources allocated to a receiving terminal according to another embodiment of the present invention.

6A to 6D will be described based on the content of FIG. 2 described above. Therefore, as described with reference to FIG. 2, the horizontal axis represents time resources and the vertical axis represents frequency resources. As described above, searching all the entire bands of the fifth-generation wireless communication system at the terminal may be unreasonable considering the power consumption of the terminal. Therefore, in the following description, the vertical axis is referred to as " Band. Also, the same reference numerals are used for the same parts among the reference numerals used in the drawings described above.

6A to 6D illustrate a case where one slot 100 is composed of seven minislots as described above. One mini-slot 120 may include one or more OFDM symbols, and the mini-slot 120 includes two OFDM symbols as described above.

In FIG. 6A, an eMBB # 1 resource 610 allocated to the first terminal and an eMBB # 2 resource 620 allocated to the second terminal are illustrated. Here, each of the eMBB service data may be first service data. The base station can transmit data using the frequency resource band allocated in the entire time interval within the slot 100, respectively, to the eMBB # 1 resource 610 allocated to the first UE and the eMBB # 2 resource 620 allocated to the second UE.

Referring to FIG. 6A, the base station transmits indication information 611, 612, 613 for informing whether or not the second service data is transmitted in all minislots using the preset frequency resource in the eMBB # 1 resource 610 allocated to the first terminal , 614, 615, 616, 617 are transmitted.

At this time, the instruction information 611-617 transmitted from the eMBB # 1 resource 610 allocated to the first UE is information transmitted only to the first UE, and may be valid only to the first UE. In addition, the base station transmits indication information 621, 622, 623, 624, 625, 625, 625, 622, 626, and 627 are transmitted. At this time, the indication information 621-627 in the eMBB # 2 resource 620 allocated to the second terminal is information transmitted only to the second terminal, and may be information valid only to the second terminal.

For example, when the second service data is transmitted to the third minislot among the eMBB # 1 resources 610 allocated to the first terminal, the indication information 613 located in the third minislot among the eMBB # 1 resources 610 allocated to the first terminal is 2 service data is transmitted, and the instruction information 611, 612, 614-617 located in the remaining minislots may indicate that the second service data is not transmitted. In this case, since the second terminal does not refer to the area allocated to the first terminal, the transmission of the second service data in the third minislot of the eMBB # 2 resource 620 allocated to the second terminal is performed based on the indication information Follow the instructions in 623.

The instruction information 611-617 transmitted from the eMBB # 1 resource 610 allocated to the first terminal is information transmitted only to the first terminal, and the instruction information 621 transmitted from the eMBB # 2 resource 620 allocated to the second terminal -627 is information transmitted only to the second terminal. The channel condition between the base station and the first terminal and the channel condition between the base station and the second terminal may be different, so that the received signal to noise ratio of the first terminal and the second terminal may be different. Therefore, the instruction information 611-617 transmitted from the eMBB # 1 resource 610 allocated to the first terminal and the instruction information 621-627 transmitted from the eMBB # 2 resource 620 allocated to the second terminal are applied to different modulation methods And different channel coding techniques or channel coding rates may be applied. In addition, the instruction information 611-617 transmitted from the eMBB # 1 resource 610 allocated to the first UE and the instruction information 621-627 transmitted from the eMBB # 2 resource 620 allocated to the second UE may be transmitted in a sequence having different lengths And can be transmitted by assigning different amounts of resources used for instruction information transmission.

For example, if the first terminal applies the QPSK modulation scheme to transmit eMBB data and applies a channel coding rate of 1/3, it is assumed that the signal-to-noise ratio at which the first terminal operates is approximately -1 dB. In this case, the base station can set the channel coding rate to be applied to the instruction information to 1/4 in order to stably detect the instruction information in the first terminal. On the other hand, when the second terminal applies the QPSK modulation scheme to transmit eMBB data and applies the channel coding rate of 1/2, it is assumed that the signal-to-noise ratio at which the second terminal operates is approximately 2 [dB]. In this manner, if the channel state of the second terminal is better than that of the first terminal, the base station can increase the channel coding rate applied to the instruction information to be transmitted to the second terminal by half. Also, assuming that the third terminal applies a 16QAM modulation scheme to transmit eMBB data and applies a channel coding rate of 1/2, the signal-to-noise ratio at which the third terminal operates is approximately 9 [dB] . In this case, since the channel condition of the third terminal is better than that of the first terminal and the second terminal, the base station may not apply the channel coding to the instruction information to be transmitted to the third terminal.

The channel coding rate of the instruction information transmitted from the base station to each terminal can be set differently according to the modulation scheme and the channel coding rate for each terminal to apply to the eMBB data transmission as in the above embodiment. This effectively increases the resource utilization efficiency by effectively allocating the amount of resources used for transmission of the instruction information in consideration of the channel condition of each terminal.

In the above embodiment, a method of setting different channel coding rates to be applied to the instruction information transmitted to each terminal by the base station according to the modulation scheme and the channel coding rate applied by each terminal for eMBB data transmission has been described. However, the channel coding rate applied to the instruction information is only one example. Alternatively, it may be replaced by at least one of the modulation method applied to the instruction information, the length of the sequence mapping the instruction information, and the amount of resources allocated to the instruction information transmission, or a combination thereof may be used.

In the above embodiment, the modulation scheme and the channel coding rate applied to the eMBB data transmission are described as (QPSK, 1/3 coding rate), (QPSK, 1/2 coding rate), (16QAM, 1/2 coding rate) , This is only one example, and it is obvious that other modulation schemes and channel coding rates can be simply extended.

Also, in the above embodiment, when the base station applies the QPSK and 1/3 coding rate for eMBB data transmission to the UE, it applies a 1/4 channel coding rate for transmitting the instruction information and outputs (QPSK, 1/2 (16QAM, 1/2 coding rate) is applied, the channel coding rate is not applied for the transmission of the instruction information when applying the 1/2 channel coding rate for the instruction information transmission. However, it is also clear that the channel coding rates 1/4, 1/2, and 1 (channel coding not yet used) for the instruction information transmission are only examples, and that they can be replaced with different channel coding rates.

In addition, the channel coding rate to be applied to the instruction information, the length of the sequence in which the modulation method and the instruction information are mapped, and the amount of resources allocated to the instruction information transmission are determined by the modulation method and channel coding rate applied when the base station transmits eMBB data to each UE Can be defined in advance. In addition, the modulation method and the channel coding rate applied when the base station transmits eMBB data to each terminal include the channel coding rate to be applied to the indication information, the modulation method, the length of the sequence mapped to the indication information, 1: 1. ≪ / RTI > Alternatively, the base station groups the modulation methods and channel coding rates applied when transmitting the eMBB data to each terminal, and maps the channel coding rate, modulation method, and instruction information to be applied to the instruction information by the base station to each group The length of a sequence, and the amount of resources allocated to transmission of instruction information may be mapped to 1: 1. Alternatively, a plurality of mapping rules may be defined, and the base station may indicate the mapping rule version to the terminal according to at least one of fading channel conditions, interference conditions, and intra-cell traffic conditions.

When the indication information is transmitted through a specific frequency band among the resources allocated to each terminal, it is possible to indicate the transmission of the second service data for each resource allocated to each terminal. In the case of indicating the transmission / reception of the second service for each resource allocated to the terminal, it is sufficient to process the data only in the band allocated to the receiving terminal, thereby reducing the complexity of the receiving terminal.

Next, Fig. 6B is a modified embodiment of Fig. 6A as another embodiment of the present invention. 6B, it can be confirmed that the instruction information is not transmitted in only the first mini-slot. The control channel can be transmitted in the first minislot in one slot 100 as described in FIG. Therefore, it is assumed that the control channel is not transmitted in the first minislot of each slot. If the control channel is not transmitted, the receiving terminal can not demodulate and decode the entire data of the corresponding slot. Therefore, it may be set to not transmit the second service data in the first minislot of each slot 100. That is, in the example of FIG. 6B, the indication information is transmitted in the same manner as FIG. 6A from the second minus slot to the seventh minislot except for the first minislot in the resources allocated to each terminal.

That is, in FIG. 6B, in the eMBB # 1 resource 610 allocated to transmit the first service data to the first terminal, the transmission of the second service data is performed in all the minislots except for the first mini- 613, 614, 615, 616, 617 for informing whether or not the mobile terminal 100 is connected to the Internet. In addition, in the eMBB # 2 resource 620 allocated to transmit the first service data to the second terminal, the eBSB # 2 resources 620 are allocated to all the remaining minislots except for the first minislot The instruction information 622, 623, 624, 625, 626, 627 is transmitted.

6B, the instruction information 612-617 transmitted from the eMBB # 1 resource 610 allocated to the first UE is information transmitted only to the first UE, and may be information valid only to the first UE. In the eMBB # 2 resource 620 allocated to the second terminal, the indication information 622-627 is information transmitted only to the second terminal, and may be information valid only to the second terminal.

The instruction information 612-617 transmitted from the eMBB # 1 resource 610 allocated to the first terminal is information transmitted only to the first terminal, and the instruction information 622 transmitted from the eMBB # 2 resource 620 allocated to the second terminal -627 may be information transmitted only to the second terminal. The channel condition between the base station and the first terminal and the channel condition between the base station and the second terminal may be different, so that the received signal to noise ratio of the first terminal and the second terminal may be different. Accordingly, the instruction information 612-617 transmitted from the eMBB # 1 resource 610 allocated to the first terminal and the instruction information 622-627 transmitted from the eMBB # 2 resource 620 allocated to the second terminal are applied to different modulation methods Different channel coding schemes or channel coding rates may be applied, may be mapped to sequences having different lengths, and may be transmitted by assigning different amounts of resources used for transmission of instruction information. Since this has already been described with reference to FIG. 6A described above, redundant description will be omitted.

Next, referring to FIG. 6C, which is another embodiment, mini-slots may be grouped into a predetermined number of units as described with reference to FIG. When one slot is composed of seven minislots, the first slot may be a minislot through which the control channel is transmitted, as described above. Thus, the minislots in which the second service data can be actually transmitted can be from the second minislot to the seventh minislot. 6C, six mini-slots from the second mini- slot to the seventh mini- slot are divided into two groups 630 and 640. In Fig.

Also, in the embodiment of FIG. 6C, one instruction information 631 and 641 can be transmitted for each of the first group 630 and the second group 640 of the eMBB # 1 resources 610 allocated to the first terminal, and the eMBB It is possible to transmit one instruction information 632 and 642 for each of the first group 630 and the second group 640 in the resource # 620.

Each instruction information may indicate whether or not the second service data is transmitted in at least one of the minislots included in the group among the resources allocated to the corresponding terminal. For example, when the URLLC data, which is the second service data, is transmitted only in the fifth mini-slot among the eMBB # 2 resources 620 allocated to the second terminal, it indicates that only 642 of the instruction information are transmitted, All of the information indicates that the second service data is not transmitted. Accordingly, in the embodiment of FIG. 6C, the instruction information 631, 641 transmitted from the eMBB # 1 resource 610 allocated to the first terminal is information transmitted only to the first terminal and can be information valid only for the first terminal, The instruction information 632 or 642 transmitted from the eMBB # 2 resource 620 allocated to the UE is information transmitted only to the second UE, and may be valid only to the second UE.

Also, the instruction information 631, 641 transmitted from the eMBB # 1 resource 610 allocated to the first terminal is information transmitted only to the first terminal, and the instruction information 632 transmitted from the eMBB # 2 resource 620 allocated to the second terminal And 642 is information transmitted only to the second terminal. The channel condition between the base station and the first terminal and the channel condition between the base station and the second terminal may be different, so that the received signal to noise ratio of the first terminal and the second terminal may be different. Therefore, different information is applied to the instruction information 631, 641 transmitted from the eMBB # 1 resource 610 allocated to the first terminal and the instruction information 632, 642 transmitted from the eMBB # 2 resource 620 allocated to the second terminal Different channel coding schemes or channel coding rates may be applied, may be mapped to sequences having different lengths, and may be transmitted by assigning different amounts of resources used for transmission of instruction information. Since this has already been described in the embodiment of FIG. 6A described above, redundant description will be omitted.

6D, the instruction information 617 and 627 are set in units of one slot, not in units of minislots, for each resource allocated to each terminal. For example, when second service data is transmitted from at least one of the first minislot to the seventh minislot among the eMBB # 1 resources 610 allocated to the first terminal, 617 to inform that the second service data is transmitted. On the other hand, in the eMBB # 2 resource 620 allocated to the second terminal, if there is no transmission of the second service data in the first minislots to the seventh minislots, the instruction information 627 set in the last minislot of the corresponding slot 100 is transmitted to the second It can be set to notify that the service data is not transmitted.

On the other hand, in the eMBB # 2 resource 620 allocated to the second terminal, if there is no transmission of the second service data in all of the first minislots to the seventh minislots, the instruction information 627 set in the last minislot of the corresponding slot 100 The first service data may be transmitted without transmitting the instruction information for notifying the second service data.

In addition, the indication information 617 transmitted from the eMBB # 1 resource 610 allocated to the first terminal is information transmitted only to the first terminal, and the indication information 627 transmitted from the eMBB # 2 resource 620 allocated to the second terminal is the second Information transmitted only to the terminal. The channel condition between the base station and the first terminal and the channel condition between the base station and the second terminal may be different, so that the received signal to noise ratio of the first terminal and the second terminal may be different. Therefore, different modulation methods can be applied to the instruction information 617 transmitted from the eMBB # 1 resource 610 allocated to the first UE and the instruction information 627 transmitted from the eMBB # 2 resource 620 allocated to the second UE, Different channel coding schemes or channel coding rates may be applied and may be mapped to sequences of different lengths and may be transmitted by assigning different amounts of resources used for instruction information transmission. This has already been described in the embodiment of FIG. 6A described above, so that redundant description will be omitted.

6A to 6D, it is possible to notify whether or not the second service data is transmitted for each of the minislots for each band allocated to each terminal, or to group a plurality of minislots within one slot, The presence or absence of the transmission of the second service data may be notified in units of slots, not the mini-slot unit. 6A to 6D, only resources of a minimum unit frequency band for transmitting indication information in one set unit, for example, a minislot, a group of minislots, or a slot, And the instruction information is transmitted using the minimum number of times. 6A to 6D, there is an advantage that a waste of unnecessary bandwidth in the wireless communication system can be reduced.

However, when the instruction information is transmitted once using only the resource of the minimum unit frequency band as shown in FIGS. 6A to 6D, it may happen that the receiver can not accurately detect it. For example, the radio channel conditions of the resource may suddenly become poor, deep fading, severe interference may occur. As described above, when the instruction information is transmitted only once in the minislot, the group of minislots, or the slot unit in the resource allocated to each terminal, a reception error may occur. In the case where a reception error occurs, it can be understood that it is the same as the case where there is no corresponding instruction information as described in the related art.

Therefore, another embodiment for supplementing the above will be described with reference to FIGS. 7A to 7D.

7A to 7D are exemplary diagrams for transmitting indication information based on resources allocated to a receiving terminal according to another embodiment of the present invention.

7A to 7D will be described based on the contents of FIG. 2 described above. Therefore, as described in FIG. 2, the horizontal axis of FIGS. 7A to 7D is a time resource, and the vertical axis is a frequency resource. The frequency resource of the vertical axis may be the entire frequency band that can be used or allocated in the fifth generation wireless communication system, or may be the transmission / reception band of a specific terminal. In the following description, it is assumed that the vertical axis is a transmission / reception band in which a terminal can search or search.

7A to 7D illustrate a case where one slot 100 is composed of seven mini-slots as described above. One mini-slot 120 may include one or more OFDM symbols, and the mini-slot 120 includes two OFDM symbols as described above. Also in FIG. 7A, an eMBB # 1 resource 610 allocated to the first terminal and an eMBB # 2 resource 620 allocated to the second terminal are illustrated. Here, each of the eMBB service data may be first service data. The base station can transmit data using the frequency resource band allocated in the entire time interval within the slot 100, respectively, to the eMBB # 1 resource 6101 allocated to the first UE and the eMBB # 2 resource 620 allocated to the second UE.

7A, in the example of FIG. 7A, a plurality of fixed frequency bands are allocated to resource regions 610 and 620 allocated to each terminal in the entire frequency band or the transmission / reception frequency band of the terminal, . As illustrated in FIG. 7A, one slot 100 may consist of the first minislot to the seventh minislots. In the first mini slot of the eMBB # 1 resource 610 allocated for the transmission of the first service data to the first UE, the indication information 611a and 611b are transmitted in two different fixed frequency bands . Also, in the second minislot of the eMBB # 1 resource 610 allocated for the transmission of the first service data to the first terminal, the indication information 612a and 612b are transmitted in the same two frequency bands as the first minislot Also in the third to seventh minislots of the eMBB # 1 resource 610 allocated for the transmission of the first service data to the first terminal, the instruction information 613a, 613b, 614a , 614b, 615a, 615b, 616a, 616b, 617a, and 617b are transmitted. In the case of the eMBB # 2 resource 620 allocated to transmit the first service data to the second terminal, the same information is used for the indication information 621a, 621b, 622a, 622b, 623a, 623b, 624a, 624b, 625a, 625b, 626a , 626b, 627a, and 627b are transmitted.

As a result, in each of the minislots of the eMBB # 1 resource 610 allocated for the transmission of the first service data to the first terminal and the eMBB # 2 resource 620 allocated for transmitting the first service data to the second terminal, The instruction information of the mobile station 100 is transmitted.

6A to 6D, the instruction information 611a-617b transmitted from the eMBB # 1 resource 610 allocated to the first UE is information transmitted only to the first UE, and may be information valid only to the first UE. Also, in the eMBB # 2 resource 620 allocated to the second terminal, the instruction information 621a-627b is information transmitted only to the second terminal, and may be information valid only for the second terminal.

For example, when the second service data is transmitted to the third minislot among the eMBB # 1 resources 610 allocated to the first terminal, the instruction information 613a and 613b located in the third minislot among the eMBB # 1 resources 610 allocated to the first terminal Indicating that the second service data is transmitted, and the instruction information 611a-612b and 614a-617b located in the remaining minislots may indicate that the second service data is not transmitted. Also, for example, when second service data is transmitted to the third minislot among the eMBB # 1 resources 610 allocated to the first terminal, the instruction information 613a located in the third minislot among the eMBB # 1 resources 610 allocated to the first terminal And 613b indicate that the second service data is transmitted, and the instruction information 611a-612b and 614a-617b located in the remaining minislots may be configured to transmit data of the first service without transmitting the instruction information. In this case, since the second terminal does not refer to the area allocated to the first terminal, the transmission of the second service data in the third minislot of the eMBB # 2 resource 620 allocated to the second terminal is performed based on the indication information 623a and 623b.

When the indication information is transmitted through a specific frequency band among the resources allocated to each terminal, it is possible to indicate the transmission of the second service data for each resource allocated to each terminal. In the case of indicating the transmission / reception of the second service for each resource allocated to the terminal, it is sufficient to process the data only in the band allocated to the receiving terminal, thereby reducing the complexity of the receiving terminal.

Fig. 7B is a modified embodiment of Fig. 7A as another embodiment of the present invention. Referring to FIG. 7B in comparison with FIG. 7A, it can be confirmed that the instruction information is not transmitted in only the first mini-slot. The control channel can be transmitted in the first minislot in one slot 100 as described in FIG. Therefore, it is assumed that the control channel is not transmitted in the first minislot of each slot. If the control channel is not transmitted, the receiving terminal can not demodulate and decode the entire data of the corresponding slot. Therefore, it may be set to not transmit the second service data in the first minislot of each slot 100. That is, in the example of FIG. 7B, from the second minus slot to the seventh minislot except for the first minislot among the eMBB # 1 resources 610 allocated to the first terminal of the slot 100, the instruction information 611a- In the example of FIG. 7B, from the second minislot to the seventh minislot except for the first minislot among the eMBB # 2 resources 620 allocated to the second terminal of the slot 100, Gt; 621a-627b < / RTI >

In addition, the instruction information 612a-617b transmitted from the eMBB # 1 resource 610 allocated to the first UE is information transmitted only to the first UE, and the instruction information 622a- And 627b is information transmitted only to the second terminal. The channel condition between the base station and the first terminal and the channel condition between the base station and the second terminal may be different, so that the received signal to noise ratio of the first terminal and the second terminal may be different. Accordingly, the instruction information 612a-617b transmitted from the eMBB # 1 resource 610 allocated to the first UE and the instruction information 622a-627b transmitted from the eMBB # 2 resource 620 allocated to the second UE are different from each other Different channel coding schemes or channel coding rates may be applied, may be mapped to sequences having different lengths, and may be transmitted by assigning different amounts of resources used for transmission of instruction information. This has already been described in the embodiment of FIG. 6A described above, and a duplicate description will be omitted.

Next, referring to FIG. 7C, which is another embodiment, the mini-slots may be grouped in units of a predetermined number as described with reference to FIG. When one slot is composed of seven minislots, the first slot may be a minislot through which the control channel is transmitted, as described above. Thus, the minislots in which the second service data can be actually transmitted can be from the second minislot to the seventh minislot. Accordingly, FIG. 7C illustrates a case in which six mini-slots from the second mini- slot to the seventh mini- slot are divided into two groups 630 and 640. FIG.

In the embodiment of FIG. 7C, the first group 710 and the second group 720 among the eMBB # 1 resources 610 allocated to the first UE can transmit indication information 711a, 711b and 712a and 712b using different frequency resources 721b, 722a, and 722b using different frequency resources for each of the first group 710 and the second group 720 of the eMBB # 2 resources 620 allocated to the second terminal.

Each instruction information may indicate whether or not the second service data is transmitted in at least one of the minislots included in the group among the resources allocated to the corresponding terminal. For example, if the URLLC data, which is the second service data, is transmitted only in the fifth minislot among the eMBB # 2 resources 620 allocated to the second terminal, only 722a and 722b of the instruction information indicate that the second service data is transmitted, And the remaining instruction information indicates that the second service data is not transmitted. Also, for example, when URLLC data, which is second service data, is transmitted only in the fifth minislot among the eMBB # 2 resources 620 allocated to the second terminal, only 722a and 722b of the instruction information indicate that second service data is transmitted And the remaining instruction information may be set to transmit only the first service data without transmitting the instruction information indicating whether or not the second service data is transmitted. Therefore, in the embodiment of FIG. 7C, the instruction information 711a-712b transmitted from the eMBB # 1 resource 610 allocated to the first UE is information transmitted only to the first UE, and may be information valid only to the first UE. Also, the instruction information 721a-722b transmitted from the eMBB # 2 resource 620 allocated to the second UE is information transmitted only to the second UE, and may be information valid only to the second UE.

In addition, the indication information 711a, 711b, 712a, 712b transmitted from the eMBB # 1 resource 610 allocated to the first terminal is information transmitted only to the first terminal, and the indication transmitted from the eMBB # The information pieces 721a, 721b, 722a and 722b are information transmitted only to the second terminal. The channel condition between the base station and the first terminal and the channel condition between the base station and the second terminal may be different, so that the received signal to noise ratio of the first terminal and the second terminal may be different. Accordingly, the instruction information 711a, 711b, 712a, 712b transmitted from the eMBB # 1 resource 610 allocated to the first UE and the instruction information 721a, 721b, 722a, 712b transmitted from the eMBB # 2 resource 620 allocated to the second UE, 722b may be applied with different modulation methods, different channel coding techniques or channel coding rates may be applied, may be mapped to sequences having different lengths, and resource amounts used for instruction information transmission may be allocated differently . This has already been described in the embodiment of FIG. 6A described above, and further explanation will be omitted.

7D, the instruction information 731a, 731b, 741a, and 741b are set in units of one slot, not in units of minislots, for each resource allocated to each terminal. For example, when second service data is transmitted from at least one of the first minislot to the seventh minislot among the eMBB # 1 resources 610 allocated to the first terminal, 731a, and 731b to notify that the second service data is transmitted. On the other hand, in the eMBB # 2 resource 620 allocated to the second terminal, if there is no transmission of the second service data in the first minislots to the seventh minislots, the instruction information 741a and 741b set in the last minislot of the corresponding slot 100 And notify that the second service data is not transmitted. On the other hand, in the eMBB # 2 resource 620 allocated to the second terminal, if there is no transmission of the second service data in all of the first minislots to the seventh minislots, the instruction information 741a set in the last minislot of the corresponding slot 100, 741b may transmit only the first service data without transmitting the control information indicating the second service data.

In addition, the indication information 731a and 731b transmitted from the eMBB # 1 resource 610 allocated to the first UE is information transmitted only to the first UE, and the indication information 741a transmitted from the eMBB # 2 resource 620 allocated to the second UE, And 741b is information transmitted only to the second terminal. The channel condition between the base station and the first terminal and the channel condition between the base station and the second terminal may be different, so that the received signal to noise ratio of the first terminal and the second terminal may be different. Accordingly, the instruction information 731a, 731b transmitted from the eMBB # 1 resource 610 allocated to the first terminal and the instruction information 741a, 741b transmitted from the eMBB # 2 resource 620 allocated to the second terminal are applied to different modulation methods Different channel coding schemes or channel coding rates may be applied, may be mapped to sequences having different lengths, and may be transmitted by assigning different amounts of resources used for transmission of instruction information. This has already been described in the embodiment of FIG. 6A described above, and a further explanation will be omitted.

7A to 7D, it is possible to notify whether or not the second service data is transmitted for each minislot for each band allocated to each terminal, or to group a plurality of minislots within one slot, The presence or absence of the transmission of the second service data may be notified in units of slots, not the mini-slot unit. That is, FIGS. 7A to 7D can be a method of reducing an error that may occur by transmitting only the minimum instruction information in the embodiments of FIGS. 6A to 6D. That is, in FIGS. 7A to 7D, in order to overcome the situation where the reliability of the instruction information can be improved and the specific frequency band to which the instruction information is transmitted falls into deep de-fading, And transmits it.

6A to 6D, in the case of FIGS. 6A to 6D, one instruction information is transmitted every minislot or per group or slot unit of minislots, . On the other hand, in the case of FIGS. 7A to 7D, a plurality of pieces of instruction information are transmitted in units of minislots or in groups of mini-slots or slots. Therefore, in the case of FIGS. 7A to 7D, since the probability of obtaining the instruction information increases in the position of the receiving terminal as compared with the case of FIGS. 6A to 6D, there is an advantage that a more stable service can be provided. On the other hand, the case of FIGS. 7A to 7D may cause a waste of bandwidth than the cases of FIGS. 6A to 6D. Therefore, it is desirable to set the number of instruction information to be transmitted in each group or each slot of each of the minislots or minislots to an appropriate number of times in terms of bandwidth and stability. This can be set through experimentation in a real environment or simulation results based on a real environment.

Meanwhile, when the first cell and the second cell are adjacent to each other, the same frequency resources may be allocated to different mobile stations. In such a case, interference may occur as shown in FIGS. 5A and 5B. In order to prevent such a case, according to the present invention, it is possible to allocate resources to the UEs differently for each cell as much as possible, or to transmit indication information at different locations for each cell when the same resources are allocated. 5A and 5B can be applied as they are, so that further explanation will be omitted here.

As described above, when the transmission region of the instruction information is differently allocated to each base station, each cell, or each resource allocated to the UE, robust to the inter-cell interference signal.

In addition, when the transmission region is different or identical for each cell when transmitting the direction information, the transmission power of the indication information may be increased by boosting the transmission power to increase the reliability of the indication information. When the transmission region is different or identical for each cell upon transmission of the instruction information, the instruction information may be transmitted by spreading and / or channel encoding as another method for increasing the reliability of the instruction information. Diffusion and channel coding methods can utilize well known techniques. For example, various types of spreading techniques such as a sequence based spreading technique can be used. In the case of channel coding, a simple repetition or a substantial channel coding method can be considered.

On the other hand, in the above-mentioned formats, the description is assumed assuming that the instruction information is necessarily included. However, the instruction information may not necessarily be included.

In one embodiment, the receiving terminal may receive and decode the first service data on the assumption that the second service data can be transmitted at any time in the entire band. However, in this case, since the uncertainty is increased in the receiving terminal, not only the complexity of the receiving terminal increases, but also the performance of the decoding can be deteriorated.

Therefore, the method of providing instruction information can be considered in various forms. For example, if there is no receiving terminal requiring the second service data in the current base station or the cell, on / off of the indication information may be controlled by higher signaling information or broadcast information.

First, as described above, the meaning of indicating that the instruction information is turned on may be a method of continuously allocating a specific resource to information indicating whether or not second service data, that is, URLLC data transmission, is generated. Therefore, the data must be configured in a form excluding the resources of the instruction information for informing whether the second service data is transmitted, and the transmission / reception must be performed. In addition, a method may be considered in which the instruction information is transmitted only when the second service data is generated in the above situation. In this case, a method may be considered in which the sequence length for transmitting the instruction information is set to have a superior correlation property, and the instruction information is transmitted only when the URLLC service data, which is the second service data, is generated.

On the other hand, the fact that the indication information is turned off means that there is no receiving terminal requiring the second service data in the current base station or the cell. In this case, there is no indication information. That is, it may be the case that only general eMBB service data is transmitted.

On the other hand, if it is determined whether there is a terminal for receiving the second service data in the current base station or the cell, it may be difficult to cope with suddenly. For example, when there is a receiving terminal that requires second service data in an adjacent base station or cell, a receiving terminal that requires second service data may be requested to communicate from the neighboring cell at any time. In this case, it is possible to consider both adjacent base stations or cells.

<Contents Containing Instruction Information>

In the above description, when a second service is transmitted in bursts to a resource allocated to a first service in the wireless communication system, various frames for informing indication information for indicating whether to transmit the second service, Structures. Hereinafter, a method of constructing actual instruction information will be described.

According to the above-described schemes, it is possible to indicate whether or not the second service data is transmitted in the corresponding minislot by including an accurate time index, that is, indication information in all minislots, and indicate a coarse time index It is possible. A method of setting a group of minislots or a method of indicating on a slot-by-slot basis has been described as a method for indicating whether or not second service data is transmitted using rough instruction information.

In the case of FIG. 3C or FIG. 6C in which only one indication information is transmitted for each mini-slot group, one indication information may be composed of 1 bit. Thus, if a group of two minislots is used, a total of two bits are required. At this time, 1-bit information can be defined as follows. When the instruction information is 0, there is no transmission of the second service data, that is, the URLLC service data, in the group of the corresponding minislot. On the other hand, when the instruction information is '1', the second service data, that is, the URLLC service data, may be transmitted in the group of the corresponding minislot.

On the other hand, in other cases in which reliability is further increased, if one instruction information is composed of one bit, the entire information is required by the sum of the numbers included in each mini-slot in the entire one slot . Thus, a method has been described in which an indication at an accurate or approximate time index is possible according to each embodiment of Figures 3A through 7D.

In addition, since the method of FIG. 3d, the method of FIG. 4d, the method of FIG. 6d, and the methods of FIG. 7d of the respective embodiments described above only indicate whether or not the second service data, that is, the URLLC service data, From the index viewpoint, it can be seen that the blind detection method is used.

However, the frequency resource did not explain how to inform it. Therefore, blind detection should be used for frequency resources. The blind detection method for the frequency resource will be described in more detail in the blind detection of the second service to be described below.

In the case where the size of the instruction information is set to be larger than the above-described method, a clear time index and frequency index can be designated. In this case, one indication information may be set to have a size of 3 to 14 bits to notify which OFDM symbol the second service data is transmitted or in which minislot the second service data is transmitted. That is, the index of the frequency resource as well as the time index can be specified more explicitly or to some extent implicitly. If the frequency resource is explicitly informed, a lot of information is needed. There may also be a way to tell some tacitly. In the following description, one embodiment of the allocation scheme of the frequency resource will be described in an implicit manner. When notifying the location of the frequency resource explicitly, in the case of notifying in which minislot and which frequency resource the second service data is transmitted in units of a physical resource block (PRB), about 10 bits may be consumed have. As described above, whether or not the second service data is transmitted and the transmission position can be clearly indicated in the time resource and the frequency resource. However, as described above, when the size of the instruction information increases, the bandwidth of the system may be wasted.

In order to reduce the waste of resources, the time index precisely indicates, and when indicating the index of the approximate frequency resource, 3 to 14 bits may be required according to an OFDM symbol index or minislot index unit. If the time index indicates correctly and the index of the approximate frequency resource is indicated, using the PRB group index can reduce the number of instruction information instead of informing the accurate frequency resource location information by a few bits.

There may be another way to tell the correct time index, and for the frequency to perform blind detection. Such a method may be the method shown in FIG. 3A or FIG. 3B or FIG. 4A or 4B or FIG. 6A or 6B or 7A or 7B described above. In this case, the number of bits can be determined according to the number of minislot indexes.

In addition, as described briefly above, it is also possible to not disclose both the time index and the frequency index. In this case, all blind detection methods must be used in the terminal whether or not the second service data is included in the first service data. However, as alluded to above, if the blind detection method is used in all, the complexity of the terminal may be greatly increased, which may not be a desirable form.

<Instruction Information Transmission Method>

In the foregoing, how to indicate the accurate time index or how accurate frequency index to indicate the indication information is described. Also, it has been described that the instruction information indicating whether or not the second service data is transmitted can be composed of one bit. That is, when the instruction information is 0, there is no transmission of the second service data, that is, the URLLC service data in the group of the corresponding minislot. If the instruction information is 1, the second service data, And that data may be transmitted. Of course, when the value of the instruction information is 1, it is defined that the second service data, that is, the URLLC service data is not transmitted in the group of the corresponding minislot. If the instruction information is 0, the second service data , Or when the URLLC service data is transmitted.

Let us now consider a method for transmitting such 1-bit indication information. The indication information may be transmitted in a receiving terminal so that a non-coherent demodulation method can be applied. For example, an Orthogonal sequence may be used, or a Constant Amplitude Zero Auto-Correlation (CAZAC) sequence or a Zadoff chu sequence may be used. As another example, a pseudo random sequence or a complex random pattern may be used.

In one example of the above orthogonal sequence, when the instruction information is' 0 ', it is defined to be set to a sequence of' 1 1 1 1 ', and when it is' 1', '1 1 ?? 1 ?? 1 &Quot; sequence &quot; When a sequence of length 4 is used, the transmission format can be transmitted in the same manner as the method of FIGS. 8A to 8C.

8A to 8C are diagrams illustrating a method of transmitting the instruction information when the sequence length is 4 according to an embodiment of the present invention.

Referring to FIG. 8A, a resource to which '1' or '-1', which is a value of each sequence, is mapped to a resource element (RE). That is, as shown in FIG. 8A, when the instruction information is '0', the sequence values of '1, 1, 1, 1' in the four continuous REs 801, 802, 803, ), And when consecutive information is '1', consecutive sequence values of '-1, -1, 1, 1' in the four continuous REs 801, 802, 803 and 804 are mapped in the vertical direction ) As shown in FIG.

FIG. 8B illustrates a case where four REs are configured in a rectangular shape. In the example of FIG. 8B, when the instruction information is '0', the sequence values of '1' are sequentially mapped to two consecutive REs 811 and 812 on the time axis (on the same frequency axis) It is possible to map the sequence values of '1' to the REs 813 and 814 continuously (on the same frequency axis) on the time axis. In the example of FIG. 8B, when the instruction information is '1', the sequence values of '-1' are successively mapped to two consecutive REs 811 and 812 on the time axis, and REs 813 , And a sequence value of '1' in 814 can be mapped continuously (on the same frequency axis) on the time axis.

The method of FIG. 8C is also possible as another sequence mapping method. That is, in the example of FIG. 8C, when the instruction information is '0', the sequence values of '1, 1, 1, 1' in the four continuous REs 801, 802, 803 and 804 are horizontally And the sequential values of '-1, -1, 1, 1' in the four sequential REs 801, 802, 803 and 804 when the direction information is '1' are horizontally And mapping is possible.

In the above description, a case has been described in which a transmitting method that allows a receiving terminal to use a non-coherent demodulation method. However, it is also possible to use a coherent demodulation method at the receiving terminal. Let us consider a case where a receiving terminal can use a coherent demodulation method.

In order to use a coherent demodulation method at the receiving terminal, the transmitter, that is, the base station, may use a repetition technique or a short length block code. One method of transmitting the same sequence as the instruction information may be used. That is, it may be the case that an iterative technique is used. Alternatively, different sequences may be generated and transmitted using the instruction information. That is, it may be a method of using a block code of a short length.

In addition, whether or not the second service data is included in the current (or previous) frequency index to the next (or current) frequency index by applying the sequence as the second service transmission information, It can be announced. This will be described with reference to FIG.

FIG. 9 illustrates the same configuration as that of FIG. 2, except that only the second minislot of the resource 201 of the eMBB # 1 allocated to the first terminal and the resource not allocated to the other terminal are used as the second service data 920 And there is a difference in that it is transmitted. Therefore, FIG. 9 shows a case where the second service data is not transmitted in the eMBB # 2 resource 202 allocated to the second terminal, unlike FIG. 2 described above. In order to explain the embodiment of the present invention, the same reference numerals as those of FIG. 2 are used only for a plurality of instruction information 901, 902, 903, 904, 911, 912, 913, 914 transmitted in a group of minislots Take care.

In the example of FIG. 9, a method for notifying whether or not second service data is transmitted using the orthogonal sequence, as well as whether second service data is included in the current frequency index to the next frequency index .

In the method using the orthogonal sequence according to the embodiment of the present invention, it is possible to indicate a range of the approximate frequency index as well as whether the second service data is transmitted in the corresponding group of minislots. For example, when the second service data is transmitted in a group of specific mini-slots, the instruction information is set to "1 " to indicate that the second service data is transmitted. Here, the meaning of "1 " simply indicates whether or not the second service data is transmitted within the group of specific minislots. However, when four sequences are used as described above, it is possible to determine whether or not the second service data is transmitted in the group of specific minislots, and also, in the frequency index from which the sequence is transmitted to the frequency index in which the next sequence is transmitted, Lt; RTI ID = 0.0 &gt; a &lt; / RTI &gt;

If the second service data, that is, the URLLC service data, exists in the current frequency index to the next frequency index, the sequence value is set to '1, 1, -1, -1'. However, if there is no second service data, i.e., URLLC service data, from the current frequency index to the next frequency index, the sequence value can be set to '1, -1, 1, -1'. On the other hand, when there is no second service data, i.e., URLLC service data, in the group of the minislots, the sequence value of '1, 1, 1, 1' is used as described above.

9, the first instruction information 901 located in the first group of mini-slots has a sequence value of '1, 1, -1, -1' and the second service data , Indicating that URLLC service data is present. Also, the second instruction information 902 located in the group of the first mini-slots also has the sequence value of '1, 1, -1, -1' and the second service data, that is, the URLLC service data exists until the next instruction information exists . Also, the third instruction information 903 located in the group of the first mini-slots has a sequence value of '1, -1, 1, -1' and the second service data, that is, the URLLC service data, It can be instructed not to. Likewise, the fourth instruction information 904 located in the group of the first mini-slots has a sequence value of '1, -1, 1, -1' and the second service data, that is, the URLLC service data, It can be instructed not to.

If this is applied to the second group of minislots, there is no second service data in any minislots in the second group. Therefore, the instruction information 911, 912, 913, 914 located in the second group must all have a value of "0". Therefore, the instruction information 911, 912, 913, 914 located in the second group can all be set to have a sequence value of "1, 1.1.1" which is a sequence corresponding to the instruction information "0".

In this way, when the second service data is transmitted through one of the minislots in the group of minislots, the approximate time index and the frequency index can be informed.

Although the above-described embodiment has been described with reference to FIG. 4C, it is obvious that the instruction information transmission structure described in FIGS. 3A to 7D can be applied. In addition, in the structure for transmitting indication information within the resources allocated to each terminal, for example, in FIGS. 6A to 7D, since the channel conditions between the base station and each terminal may be different from each other, the received signal-to-noise ratio of each terminal may be different. Therefore, the different types of modulation methods can be applied to the instruction information transmitted to the respective terminals, different channel coding techniques or channel coding rates can be applied, and they can be mapped to sequences having different lengths. Can be transmitted by allocating different amounts of resources. The case of having a different channel environment for each terminal as described above has already been described in the embodiment of FIG. 6A described above, and thus redundant description will be omitted.

&Lt; Transmission location blind detection method of second service >

A frame structure for notifying the transmission of the second service data when the second service data is transmitted using at least some of the resources allocated to the first service data transmission of the specific terminal in the wireless communication system, , Content of instruction information, and so on. Hereinafter, a description will be given of how the receiving terminals can detect the first service data and the second service data actually allocated to a specific terminal.

Hereinafter, a method for distinguishing the eMBB service data, which is the first service data, and the URLLC service data, the second service data, from the receiving terminal will be described with reference to FIGS. 2 and 9.

First, referring to FIG. 9, the first terminal determines whether the second service data is included in the resource area assigned to itself in the first resource 201 allocated for reception of the first service data, using the instruction information as described above Can be confirmed. Also, when a special sequence is used, not only the position of the slot but also the approximate frequency index can be recognized. However, it is not possible to recognize exactly how far the second service is transmitted than with the instruction information alone. Therefore, if the receiving terminal does not transmit and process the data so as to recognize the second service data, the first terminal receiving the first service data as well as the terminal receiving the second service may not be able to process the received data .

Accordingly, the present invention proposes a scheme for transmitting data by performing specific scrambling on second service data, i.e. URLLC service data, in one method. For example, in the case of using a scrambling sequence that changes only the phase to the second service data, blind detection is possible because the phase between the second service data and the first service data is different from each other. Alternatively, a scrambling sequence in which the amplitude and the phase are changed together may be used. In this case, since the amplitude and the phase between the second service data and the first service data are different from each other, blind detection can be made easier.

There is a method of applying a constant phase shifted QAM constellation as another method for processing data so that the receiving terminal can recognize the second service data. Hereinafter, a description will be given with reference to FIG.

10 is an exemplary diagram for explaining a case of applying a fixed phase-shifted QAM constellation according to an embodiment of the present invention.

10 (a) illustrates a QAM constellation used to transmit first service data. That is, it is a constellation corresponding to a modulation method of data used in a wireless communication system when resources are generally allocated and data is transmitted through allocated resources. Therefore, the constellation diagram of FIG. 10A can be used when transmitting eMBB service data.

The present invention proposes a form in which the constellation is changed and used as shown in FIG. 10 (b) in order to distinguish the second service data from the first service data. That is, for the URLLC service data that is the second service data, the first service data and the second service data can be distinguished by using the constellation in which the phase is modified by 45 degrees in the original constellation diagram.

Also, the case where the phase change in the constellation is 45 degrees is only one embodiment, and various modifications such as 30 degrees, 60 degrees, and 90 degrees are possible.

10A and 10B, when the constellation is changed for each service, it may be predefined or informed to all terminals in the cell through the URLLC DCI or RRC.

As a method for distinguishing the first service data and the second service data from each other in the receiving terminal using the above-described method, the second service data is divided into the second service data and the second service data by using an operation such as Equation (1) It is possible to determine whether or not the service data is transmitted.

이고, In Equation (1)

ego,

이며,

Lt;

이고,

ego,

이며,

Lt;

이고,

ego,

이며,

Lt;

이고,

ego,

이다.

to be.

That is, the first service data, that is, the eMBB service data if L _k is greater than 0 for all k, and the first service data, that is, the eMBB service data, if not. If it is not the first service data, the result is the URLLC service data which is the second service data.

The phase value or scrambling sequence may also be pre-defined and specified in the standard, or may be determined at each base station or cell and directed to eMBB / URLLC terminals via URLLC DCI or RRC. Alternatively, the phase or scrambling sequence may be configured to change at a constant period, or may be set to have the same value at all times.

&Lt; Configuration and Operation of Base Station Apparatus and Terminal Apparatus &

11 is a block diagram of a base station apparatus according to an embodiment of the present invention.

11 is a functional block diagram of a base station that transmits first service data and second service data according to the present invention. Therefore, the base station can have other configurations other than the block configuration shown in FIG. 11, but it is a part where the gist of the present invention may be blurred.

Referring to FIG. 11, a plurality of antennas and a wireless transmitter 1101, a frame generator 1103, a second service data generator 1110, a first service data generator 1120, a controller 1130, and a network interface 1140 may be included.

The network interface 1140 may provide an interface for communicating with neighboring base stations or cells or for transmitting or receiving data or control information with an upper node. For example, the network interface 1140 may receive data to be transmitted to a specific terminal and provide the data to the controller 1130 and a corresponding data processing unit. The network interface 1140 provides the first service data to the first service data generator 1120 when the data to be transmitted to a specific terminal is the first service data and the second service data to the second service data generator 1110 if the data to be transmitted to the specific terminal is the second service data . Also, the network interface 1140 can notify the controller 1130 of the specific data when it is received.

The control unit 1130 detects the type of the received data, and if it is the first service data, performs control for transmitting the first service data through the scheduling resource area in the first service data generation unit 1120 after performing the scheduling for transmitting the first service data have. Also, the controller 1130 may perform scheduling for transmitting the second service data when the received data type is the second service data, and control the second service data generator 1110 to transmit the second service data to the corresponding resource area.

In addition, the control unit 1130 may generate the instruction information according to the present invention and provide the generated instruction information to the frame construction unit 1103. Since the instruction information can be configured as described above, additional description will be omitted here.

The first service data generation unit 1120 and the second service data generation unit 1110 can all generate data in a manner set in each of them. At this time, data generation may be an operation such as dividing data in a specific unit, modulating data according to the modulation order, and encoding. That is, it may include an operation for mapping to the constellation described above.

The frame configuration unit 1103 may then map the allocated resources using the data received from the first service data generation unit 1120 and the second service data generation unit 1110. The frame configuration unit 1103 may configure the frame including the instruction information received from the control unit 1130. Accordingly, the mapping can be performed by any of the schemes of FIGS. 2 to 7d described above. The signal output from the frame configuration unit 1103 is input to the wireless transmission unit 1101.

The radio transmitter 1101 performs band up-conversion of the received baseband signal to a radio (RF) signal of a band set in the radio communication system, amplifies the power, amplifies and transmits first and second service data through a plurality of antennas can do. Also, a digital-to-analog converter may be included between the wireless transmitter 1101 and the frame generator 1103. It should be noted that these specific configurations are omitted because they may obscure the gist of the present invention.

In the fifth generation wireless communication system, a very large number of array antennas can be basically used, and therefore, a plurality of antennas connected to the wireless transmission unit 1101 are illustrated in FIG.

12 is a block diagram of a receiving terminal according to an embodiment of the present invention.

The configuration of FIG. 12 is a functional block diagram for explaining a configuration of a terminal that receives first service data. Therefore, it is to be noted that all of the functions other than the functional configuration for receiving the first service data are omitted.

Referring to FIG. 12, a wireless receiver 1201, a communication processor 1210, and a controller 1220 connected to a plurality of antennas may be included. The radio receiving unit 1201 can low-noise amplify the received radio signal, output a baseband signal by down-converting the band.

The baseband signal converted by the wireless receiver 1201 may be input to the communication processor 1210. Note that an analog-to-digital converter may be included between the communication processor 1210 and the wireless receiver 1201, but these configurations are omitted because the gist of the present invention may be obscured.

The communication processor 1210 may include an instruction information detection unit 1211, a service data detection unit 1212, and a decoding and demodulation unit 1213 therein. As described above, the instruction information detecting unit 1211 is configured to detect whether or not the second service data is transmitted to the resources allocated for receiving the first service data, and can be allocated to specific resources as described above. The instruction information detection unit 1211 can detect the instruction information in the received slot or in the minislot or in the group of minislots and detect whether the second service data is included. Thus, it is possible to provide the service data detection unit 1212 with the detection of the second service data.

The service data detector 1212 may remove or output the service data according to whether the second service data exists in the received data using the received indication information. For example, if the second service data is included in a particular minislot or in a group or slot of a minislot, the location of the second service data is detected using one of the methods described above, Demodulation section. If the second service data does not exist in the received data using the received indication information, the service data detection unit 1212 may remove only the indication information from the received data and provide the indication information to the decoding and demodulation unit 1213.

The decoding and demodulation unit 1213 can demodulate and decode the data using the data input from the service data detection unit 1212. At this time, the decoding and demodulation unit 1213 may have different codebooks depending on whether the second service data exists or not, as described above. Therefore, the decoding and demodulation unit 1213 can perform decoding and demodulation using different codebooks according to the case where the second service data is removed from the received data and the second service data is received without the second service data.

The controller 1220 may be configured as an application processor and may receive information processed by the communication processor. For example, if the first service data is image data, an operation for processing an image can be performed. If the first service data is voice or message data, a process corresponding thereto can be performed. That is, the controller 1220 can perform control according to the application of the electronic device.

FIG. 13 is a control flowchart when transmitting a first service data and a second service data in a base station according to an embodiment of the present invention.

In the description of FIG. 13, the configuration of the base station will be described using the configuration of FIG. 11 described above. The base station may also be replaced by a cell or by another control node. Hereinafter, terminology of the base station is used for convenience of explanation.

The controller 1130 of the base station can check whether the second service is in the on state in step 1300. The inspection in step 1300 may be performed at a predetermined time period or may be performed when the power of the base station is turned on. It is also possible to set the state in which the second service is unconditionally required to be on without the step 1300. Here, the checking whether the second service is turned on in a predetermined cycle unit may be performed by checking whether a terminal receiving the second service data exists in the communication area of the current base station or in the communication area of the base stations adjacent to the base station, Or may be set based on the indicated information from the superordinate node.

If it is determined in step 1300 that the second service is to be turned on, the control unit 1130 of the base station proceeds to step 1302, otherwise proceeds to step 1304. Since the second service data does not generally exist in step 1304, the first service data and other service data may be transmitted. However, if the on / off state of the second service is periodically notified, the second service off state may be broadcast through the control information in step 1304. That is, it indicates that there is no terminal receiving the URLLC service data which is the second service data among the terminals in the connected state with the base station, and indicates that the indication information is inactivated in the first service data to be transmitted . The other operations in step 1304 correspond to the operation of transmitting general first service data only, so the description is omitted here.

In step 1302, the controller 1130 of the base station can broadcast information that the second service is on. The on-state broadcast of the second service can be transmitted to all the terminals in the base station by using the RRC signal or using other control information. The ON state of the second service indicates that there is a terminal receiving the URLLC service data, which is the second service data among the terminals connected to the base station. In the first service data, Quot; activated &quot; is activated.

Then, the controller 1130 of the base station proceeds to step 1306 to generate the first service data and map the resource to the resource. In this case, since the terminal receiving the second service data exists in step 1306 as described above, the controller 1130 of the base station can perform the mapping considering the resource to which the indication information is allocated in the mapping of the first service data . In addition, the controller 1130 of the base station may perform the mapping without considering the resource to which the instruction information is allocated when mapping the first service data. In this case, the base station transmits the first service data using the corresponding resource in a situation where the instruction information is not transmitted, removes data of the first service from the resource and transmits the indication information in the situation where the instruction information is transmitted You may.

Then, the controller 1130 of the base station can check whether or not the second service has occurred in step 1308. If it is determined in step 1308 that the second service data has been generated, the process proceeds to step 1310. If the second service data is not generated, the process proceeds to step 1320. [

If the second service data is not generated, the controller 1130 of the base station can transmit the service data using the mapped resources in step 1320. [ If the first second service data is not generated, the base station control unit 1130 can control to transmit using the resources mapped only to the first service data. The controller 1130 of the base station may proceed to step 1316 after transmitting the specified mini-slot in step 1320. [ In step 1320, the data transmission unit may be a minislot unit, a minislot group unit, or a slot unit. Hereinafter, for the convenience of explanation, it is assumed that it is a minislot unit.

On the other hand, if the procedure goes from step 1308 to step 1310, the controller 1130 of the base station can check whether the first service resource requires transmission. That is, it is checked whether a resource region for transmitting the second service data should be transmitted through the resource allocated to the first service data. If the second service data can be transmitted through the other unallocated resource than the resource required for transmission of the first service data, the second service data resource may be allocated and the process may proceed to step 1320. [ Note that the contents of allocating the second service data resource are omitted in FIG. If the resource for the second service data transmission and the resource for the first service data transmission do not overlap with each other as described above, the resource can be transmitted by using the allocated resource.

On the other hand, if it is determined in step 1310 that transmission is required in the first service resource, the controller 1130 of the base station proceeds to step 1312 to generate indication information for notifying that the second service data is transmitted, 1 Borrow service data. The control unit 1130 of the base station may control to transmit the data after including the second service data in the position where the first service data is punctured in step 1314 and mapping the data to include the previously set instruction information. Here, the indication information may be transmitted in the same minislot as the second service data, or may be transmitted in the following minislot. The location of the minislot through which the instruction information is transmitted has already been described above, so that no further description will be given.

Then, the controller 1130 of the base station proceeds to step 1316 and checks whether a new slot is required to be transmitted. Step 1316 is the same as checking whether transmission of all minislots included in one slot is completed as described above. If the transmission of all the minislots is completed as a result of the check in step 1316, the controller 1130 of the base station proceeds to step 1318, otherwise proceeds to step 1308.

In step 1316 from step 1316, the controller 1130 of the base station can check whether the on / off review time of the second service is on. That is, it is periodically checked whether the second service is turned on / off to check whether or not the time to broadcast is coming. If it is determined in step 1318 that it is time to check the on / off state of the second service, the controller 1130 of the base station proceeds to step 1300. However, if it is determined in step 318 that the on / off state of the second service should not be checked, the controller 1130 of the base station may proceed to step 1306.

FIG. 14 is a control flowchart when receiving a first service data and a second service data in a receiving terminal according to an embodiment of the present invention.

In describing FIG. 14, the configuration of the receiving terminal will be described using the configuration of FIG. 12 described above. Also, the receiving terminal may be a terminal capable of receiving the second service data as well as the first service data. The receiving terminal may also receive other service data. However, since FIG. 14 is a control flow diagram from the viewpoint of receiving the first service data, the operation in the terminal receiving the first service data will be described.

The communication processor 1210 of the terminal may check in step 1400 whether the second service is on based on the information previously received by the base station. If the second service is in an on state, the communication processor 1210 proceeds to step 1402 when the second service is in an on state as a result of the check in step 1400, and may proceed to step 1420 when the second service is in an off state. As described above, when the second service is in the off state, the indication information may also not be transmitted, so that only the first service data can be transmitted in step 1420. [

In step 1402, the communication processor 1210 activates the instruction information detection unit 1211, the service data detection unit 1212, and the decoding and demodulation unit 1213 described above. The communication processor 1210 applies a rate matching rule considering the location of the second service indication information, and can set a RE mapping rule. For example, even when only the first service data is transmitted, the indication information may be included and transmitted. Therefore, it is possible to set a rate matching considering the size and position of the instruction information and a mapping rule in which the instruction information is mapped to the resource RE.

Thereafter, the communication processor 1210 controls to receive data through the wireless receiver 1201 in step 1404, and proceeds to step 1406 to generate an LLR value for the code block CB. The communication processor 1210 also decodes the instruction information from the received data. The communication processor 1210 may proceed to step 1408 to check whether the second service data exists using the decoded result. If the second service data exists as a result of the check in step 1408, the communication processor 1210 proceeds to step 1410. If the second service data does not exist,

In step 1412, the communication processor 1210 can decode the first service data since the second service data is not received. The decoded first service data may be provided to the controller 1220 of the terminal. In the flowchart of FIG. 14, the contents of the complex automatic retransmission or retransmission protocol are omitted, and it is assumed that the decoding is always successful.

On the other hand, if it is determined in step 1408 that the second service data exists, the communication processor 1210 proceeds to step 1410 and detects the second service data from the received data and removes the second service data. The method of detecting the second service data can be variously configured according to the method in which the instruction information indicates the frequency index and the time index as described above. That is, when both the frequency index and the time index are accurately indicated, it can be detected simply. On the other hand, if at least one of the frequency index and the time index is missing or roughly indicated, the blind detection method can be used. Since the examples for such a blind detection method have already been described above, redundant explanation will be omitted here.

Finally, the communication processor 1210 may proceed to step 1414 to check whether the reception of the first service data is terminated. If it is determined in step 1414 that the reception of the first service data is terminated, the communication processor 1210 may terminate the routine. On the other hand, if the reception of the first service data is not terminated, the communication processor 1210 may proceed to step 1404.

15 is a graph of the simulation result according to the present invention.

FIG. 15A is a graph illustrating SNR (signal to noise ratio) of the first service data and the second service data, that is, when the QPSK scheme is used for the eMBB service data and the URLLC service data, FIG. 15B illustrates a simulation graph between a Noise Ratio (BLER) and a Block Error Rate (BLER). FIG. 15B illustrates 16QAM and QPSK for the first service data and the second service data, that is, eMBB service data and URLLC service data, And a block error rate (BLER) versus SNR such as the case where the present invention is applied and the case where the present invention is not applied.

Referring to FIG. 15A, reference numeral 1500 denotes a simulation graph of BLER versus SNR when only first service data is transmitted. Reference numeral 1501 denotes a second service data And it is a simulation graph of the SNR vs. BLER when the receiving terminal does not know that the second service data is transmitted.

That is, in a normal case, BLER versus SNR should be displayed as in the graph of 1500. However, if some of the second service data is burst inserted into the resources allocated to the first service data, and if such information is not provided to the receiving terminal, A phenomenon occurs in which the entire data received can not be processed.

However, by applying the above-described methods, a graph of the SNR-relative BLER can be changed similarly to the case where only the first service data is transmitted, such as 1502 or 1503. A simulation graph 1502 is a graph of SNR versus BLER when blind detection of the second service data and no information of which of the resources allocated to the first service data is transmitted to the second service data is provided . A graph of BLER versus SNR of reference numeral 1503 having an improved characteristic than reference numeral 1502 is a graph when information on which of the resources allocated to the first service data is transmitted from the second service data is provided.

In the case of transmitting originally only the first service data, the reason why the graphs of the contrast reference numerals 1502 and 1503 are in a degraded form is that a part of the first service data to be originally transmitted can not be transmitted. Therefore, it is inevitable that the second service data is degraded as much as it is transmitted.

On the other hand, FIG. 15 (b) can be understood in the same manner as in FIG. 15 (a). That is, the graphs of (a) and (b) of reference numeral 1510 merely show that the first service data is changed from QPSK to 16QAM. Therefore, the graph 1500 in FIG. 15A corresponds to the graph 1510 in FIG. 15B, and the graph 1501 in FIG. 15A corresponds to the graph in FIG. 15A corresponds to the graph of 1511, and the graph of 1502 of FIG. 15A corresponds to the graph of 1512 of FIG. 15B and the graph of 1503 of FIG. Corresponds to the graph 1513 in Fig. 15 (b).

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not intended to limit the scope of the invention. Accordingly, the scope of the present invention should be construed as being included in the scope of the present invention, all changes or modifications derived from the technical idea of the present invention.

100: Slot or TTI
120: Mini Slot or short TTI
131: second service data or URLLC service data
201, 202: resources assigned to the first service or the eMBB service
210, 220, 310, 320: a group of mini-slots
211-214, 221-224, 301-307, 311, 321, 331, 401-407, 411-417, 421-427, 511-516, 521-526, 531-536, 611-617, 621-627 , 901-904, 911-914: Instructions
1101:
1103:
1110: second service data generation unit
1120: First service data generation unit
1130:
1140: Network interface
1201:
1210: Communication processor
1211: Indication information detecting section
1212: Service data detection unit
1213: Decoding and demodulating unit
1220:

Claims (20)

A method for transmitting different kinds of service data in a base station,
Allocating a first resource through scheduling of first service data to be transmitted to a first terminal and transmitting the first service data;
Identifying whether second service data for transmission to the first terminal or the second terminal is generated using at least a portion of the first resource during the transmission of the first service data to the first terminal;
Allocating the second service data to at least a part of the first resource and transmitting the second service data when the second service data is generated; And
Setting and instructing to instruct transmission of the second service data at a time point of transmission of an indication information at a time point closest to a transmission time point of the second service data among the subsequent time points including the transmission time point of the second service data; And transmitting the different service data to the base station. The method according to claim 1,
Wherein the first service data is eMBB service data and the second service data is URLLC service data. The method according to claim 1,
Puncturing the first service data at a resource that transmits the second service data when allocating the second service data to at least a part of the first resource,
Wherein the first resource is a unit of one slot including two or more minislots and the second service data transmits the second service data using at least one minislot of the minislots,
The instruction information includes:
Each of which is transmitted in units of at least one of minislots, minislots or slot units. A base station apparatus for transmitting different kinds of service data,
A first service data generation unit for generating first service data to be transmitted to the first terminal based on scheduling information;
A second service data generation unit for generating second service data to be transmitted to the first terminal or the second terminal;
A frame generating unit configured to generate first data generated by the first service data generating unit and second data generated by the second service data generating unit into one frame;
A wireless transmitter for transmitting data generated by the frame generator as a signal of a transmission band; And
Allocating a first resource by scheduling to provide the first service data to the first terminal and transmitting at least a part of the first resource while transmitting the first service data using the first resource to the first terminal, To identify whether second service data for transmission to the first terminal or the second terminal is generated using the first service data and to assign the second service data to at least a part of the first resource when the second service data is generated And to transmit the second service data at a time point of transmission of the instruction information at a time point closest to the transmission time point of the second service data among the subsequent time points including the transmission time point of the second service data. And a control unit for transmitting different types of service data. 5. The method of claim 4,
Wherein the first service data is eMBB service data, and the second service data is URLLC service data. 5. The method of claim 4,
Wherein the first resource is one slot unit comprising two or more minislots,
Wherein,
Control to puncture the first service data at a resource that transmits the second service data when allocating the second service data to at least a part of the first resource,
Wherein the control unit controls the second service data to transmit the second service data using at least one minislot of the minislots. 5. The method according to claim 4,
And transmitted in units of at least one of minislots, minislots or slot units. A method for receiving service data in a terminal,
Receiving first service data through a scheduled first resource;
Detecting indication information indicating whether to transmit second service data in the first resource;
Identifying whether the second service data is transmitted using the instruction information;
Detecting the second service data when the second service data is transmitted through the first resource; And
And removing the second service data and decoding only the received first service data. 9. The method of claim 8,
Wherein the first service data is eMBB service data and the second service data is URLLC service data. 9. The information processing apparatus according to claim 8,
Each mini-slot unit or a plurality of mini- slot units or at least one slot unit,
And information capable of estimating at least one of a time resource and a frequency resource of the second service data,
Wherein the first resource is one slot unit comprising two or more minislots and the second service data is received through at least one minislot of the minislots. A terminal apparatus for receiving data,
A wireless receiver for converting a radio signal received through a set band into a baseband signal;
The method includes receiving data through a first resource allocated to the terminal, detecting indication information indicating whether to transmit second service data in the first resource, determining whether to transmit the second service data using the indication information, And a communication processor for detecting the second service data when the second service data is transmitted through the first resource and for removing the second service data and decrypting only the received first service data A terminal device for receiving different kinds of service data. 12. The method of claim 11,
Wherein the first service data is eMBB service data, and the second service data is URLLC service data. The information processing apparatus according to claim 11,
And information capable of estimating at least one of a time resource and a frequency resource of the second service data, the information being received in units of at least one of each minislot unit or a plurality of minislots unit or slot unit,
Wherein the first resource is one slot unit including two or more minislots, and the second service data is received through at least one minislot of the minislots. A method for transmitting different kinds of service data in a base station,
Allocating and transmitting first service data to be transmitted to a first terminal through scheduling to a first resource;
Allocating and transmitting second service data of the same kind as the first service data to be transmitted to the second terminal to a second resource through scheduling;
Identifying whether the first service data for transmitting to the first terminal using the at least a portion of the first resource during transmission of the first service data to the first terminal is different from the third service data;
Allocating the third service data to at least a part of the first resource and transmitting the third service data when the third service data is generated;
Identifying whether second service data for transmission to the second terminal and fourth service data of a different kind are generated using at least a portion of the second resource during transmission of the second service data to the second terminal;
Allocating the fourth service data to at least a part of the second resource and transmitting the fourth service data when the fourth service data is generated;
Wherein the third service data is transmitted at a time point at which the third service data is transmitted from the first resource to the first service, And setting and transmitting first indication information indicating transmission of the first indication information; And
Wherein the fourth service data is transmitted from the second resource scheduled to transmit the second service data at a point of time when the fourth service data is transmitted, And setting and transmitting second indication information indicating transmission of different types of service data. 15. The method of claim 14,
Wherein the first service data and the second service data are eMBB service data, and the third service data and the fourth service data are URLLC service data. 16. The method of claim 15,
When the third service data or the fourth service data is not transmitted, the instruction information is not transmitted at the time of transmission of the instruction information. 16. The method of claim 15,
Wherein the first indication information includes at least one of a channel coding rate, a modulation method, a sequence length for mapping indication information, and a resource amount allocated for transmission of indication information according to a channel environment between the first terminal and the base station,
Wherein the second indication information includes at least one of a channel coding rate, a modulation method, a sequence length for mapping the indication information, and an amount of resources allocated for transmission of the indication information according to a channel environment between the second terminal and the base station, A method for transmitting different types of service data at a base station. 18. The method of claim 17,
A sequence length for mapping the channel coding rate, a modulation method, and instruction information of each of the first instruction information and the second instruction information, an amount of resources allocated for transmission of the instruction information, 3. A method for transmitting heterogeneous service data at a base station, the method being predetermined upon resource allocation of service data. 19. The method of claim 18,
A sequence length for mapping each channel coding rate, a modulation method, and instruction information for the first instruction information and the second instruction information, a length of a sequence for mapping the amount of resources allocated for transmission of the instruction information, And transmitting the different service data to the base station. The method of claim 19, wherein the first instruction information and the second instruction information are
Grouping a channel coding rate and a modulation method to be applied to the first service data and the third service data into a predetermined group,
A mapping step of mapping a channel coding rate, a modulation method, and instruction information for the first indication information and the second indication information to a sequence length for mapping the indication information, and a resource amount allocated for transmission of the indication information, Data transmission method.

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