CN107889156B - Method and device for sending and receiving access information and transmission system - Google Patents

Abstract

The invention provides a method and a device for sending and receiving access information and a transmission system. The method for sending the access information comprises the following steps: and according to the appointed sending sequence, sending the N sub-information blocks carrying the access information to the user side equipment on the appointed sub-band in the sending frequency band. The method for receiving the access information comprises the following steps: receiving N sub-information blocks sent by network side equipment on a designated sub-band in a receiving frequency band, wherein the N sub-information blocks carry access information. The invention solves the problem of overlarge access time caused by adopting minimum system bandwidth transmission access in the related technology, and achieves the effect of reducing the average access time delay of users in a 5G communication system.

Description

Method and device for sending and receiving access information, and transmission system

technical field

The present invention relates to the field of communications, and in particular, to a method and device for sending and receiving access information, and a transmission system.

Background technique

In order to meet the increased demand for wireless data services since the deployment of the 4th generation communication system 4G, efforts have been made to develop an improved 5th generation communication system 5G. The 5G communication system is also called "post-4G network" or "post-Long Term Evolution (LTE) system".

5G communication systems are considered to be implemented in higher frequency bands (eg above 3GHz) in order to accomplish higher data rates. The characteristics of high-frequency communication are that it has relatively serious path loss and penetration loss, and the propagation in space is closely related to the atmosphere. Due to the extremely short wavelength of high-frequency signals, a large number of small antenna arrays can be used to enable beamforming technology to obtain more accurate beam directions, improve the coverage of high-frequency signals with the advantages of narrow beam technology, and make up for transmission losses. A major feature of communication.

In communication systems using beamforming techniques, transmit beamforming and/or receive beamforming are used. Transmit beamforming is generally a technique that uses multiple antennas to focus the signal transmitted by each antenna in a particular direction. The combination of the plurality of antennas is called an array antenna, and each antenna included in the array antenna is called an antenna element. The propagation of the signal is increased due to the use of transmit beamforming, and the interference to other users is significantly reduced because the signal is hardly received in directions other than the relevant direction. Receive beamforming is a technique in a receiver that focuses the reception of radio waves in a specific direction by using a receive antenna array. The signal sensitivity of signals entering in the relevant direction is increased by using receive beamforming, but signals entering in directions other than the relevant direction are removed from the received signal, thereby blocking interfering signals.

In the traditional LTE system, all users can support various system bandwidths. In order to support the transmission of various system bandwidths, users access through the minimum system bandwidth around the center frequency (that is, 6 physical resource blocks around the center frequency). That is, the user shared information is sent to the user through the system broadcast channel and the synchronization signal in the above-mentioned minimum system bandwidth, and the user only receives the system broadcast channel and the synchronization signal from the above-mentioned minimum system bandwidth. However, in the 5G communication system, the information shared by users needs to be repeatedly sent to users through different beams through beam scanning, and the 5G communication system is required to support more flexible network-side device/user bandwidth configurations. For example, network-side devices can support a variety of The system bandwidth configuration can support the access of users with various bandwidths under any system bandwidth configuration. Therefore, if the traditional LTE minimum system bandwidth access method is adopted in the 5G communication system, the access delay will be too large. . And as the frequency resource used by the communication system is higher, the beam is narrower, and the number of beams is more, the problem is more prominent. For related problems, no effective solutions have been proposed yet.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method and apparatus for sending and receiving access information, and a transmission system, so as to at least solve the problem of excessive access time in the related art due to the use of transmission minimum system bandwidth for access.

According to an embodiment of the present invention, a method for sending access information is provided, comprising: sending N sub-information blocks carrying access information to a user side on a designated sub-band in a transmission frequency band according to a designated sending sequence equipment.

Optionally, the designated subband includes: a first subband of the N sub-information blocks that carry the access information, and the method further includes: according to a first designation corresponding to the first subband In the sending sequence, the N sub-information blocks carrying the access information are sent to the user-side device on the first sub-band.

Optionally, the first subband is located at the center of the transmission frequency band.

Optionally, the bandwidth of the first subband is the smallest bandwidth in the transmission frequency band.

Optionally, the center position of the first subband overlaps with the center position of the transmission frequency band, or the number of subcarriers that differ between the center position of the first subband and the center position of the transmission frequency band is less than or equal to predetermined threshold.

Optionally, the number of subcarriers corresponding to the predetermined threshold is 12.

Optionally, the method further includes: the designated sub-band further includes: P second sub-bands of one or more sub-information blocks of the N sub-information blocks that carry the access information, for In the i-th sub-band in the P second sub-bands, according to the i+1-th specified order, on the i-th sub-band, one of the N sub-information blocks that carry the access information or A plurality of sub-information blocks are sent to the user side equipment.

Optionally, the second subband is a subband located on both sides of the first subband in the transmission frequency band.

Optionally, any one of the i+1th specified sequences is a cyclic shift sequence of the other specified sequence.

Optionally, the first specified sequence is a cyclic shift sequence of any specified sequence in the i+1th specified sequence.

Optionally, any one of the first specification order and the i+1th specification order is different.

Optionally, according to a specified sending sequence, sending the N sub-information blocks to the user-side device on the specified subband includes: cyclically sending the N sub-information blocks according to a specified period.

Optionally, the specified period refers to a period corresponding to a transmission opportunity for transmitting the access information according to the specified transmission order.

Optionally, the specified period is pre-configured by the network side device and the user side device.

Optionally, the specified period corresponding to the first subband is equal to the specified period corresponding to at least one of the P second subbands.

Optionally, the specified period corresponding to the first subband is smaller than the specified period corresponding to any one of the P second subbands.

Optionally, the specified period corresponding to the first subband is in a multiple relationship with the specified period corresponding to any one of the P second subbands.

Optionally, the access information includes at least one of the following: broadcast signal, broadcast channel, downlink beam reference signal, synchronization signal, random access channel, random access signal, uplink beam reference signal, downlink control channel, downlink A data channel, the aforementioned control channel, and the aforementioned data channel.

Optionally, the access information on the first subband is further used to indicate at least one of the following: the bandwidth capability of the user side equipment, the system bandwidth capability corresponding to the transmission frequency band, the sub-information block in the first subband. The transmission information of the two subbands.

According to another embodiment of the present invention, a method for receiving access information is provided, comprising: receiving N sub-information blocks sent by a network-side device on a designated sub-band in a receiving frequency band, wherein the N sub-information blocks It carries access information.

Optionally, the designated subband includes: a first subband, and the method further includes: on the first subband, receiving N pieces of the sub information blocks sent by the network side device.

Optionally, the first subband is located at the center of the receiving frequency band.

Optionally, the designated subbands further include: M second subbands, and the method further includes: receiving, on the M second subbands, N pieces of the sub-information sent by the network-side device One or more sub-blocks of information in a block.

Optionally, the second subband is a subband located on both sides of the first subband in the receiving frequency band.

Optionally, the method further includes: cyclically receiving N pieces of the sub-information blocks according to a specified period.

Optionally, the method further includes: receiving the N sub-information blocks on the first sub-band according to the specified period.

Optionally, the method further includes: monitoring and/or receiving one or more sub-information blocks in the N sub-information blocks on the M second sub-bands according to the specified period, or, according to The access information in the N sub-information blocks and the specified period, one or more sub-information blocks of the N sub-information blocks are received on the M second sub-bands.

According to another embodiment of the present invention, an apparatus for sending access information is provided, comprising: a sending module configured to send N subbands carrying access information on a designated subband in a sending frequency band according to a designated sending order The information block is sent to the user side equipment.

Optionally, the designated subband includes: a first subband of the N sub-information blocks that carry the access information, and the sending module is further configured to follow the first subband corresponding to the first subband. Specify a sending order, and send the N sub-information blocks carrying the access information to the user-side device on the first subband.

Optionally, the designated sub-band further includes: P second sub-bands of one or more sub-information blocks of the N sub-information blocks that carry the access information, and the sending module is further configured to For the i-th sub-band in the P second sub-bands, according to the i+1-th specified order, the i-th sub-band will carry one of the N sub-information blocks that carry the access information or multiple sub-information blocks are sent to the user side equipment.

Optionally, the sending module is further configured to: cyclically send the N sub-information blocks according to a specified period.

According to yet another embodiment of the present invention, an apparatus for receiving access information is provided, including: a receiving module configured to receive, on a designated subband in a receiving frequency band, N sub-information blocks sent by a network-side device, wherein N sub-information blocks are The sub-information block carries access information.

Optionally, the designated subband further includes: a first subband, and the receiving module is further configured to receive, on the first subband, the N sub-information blocks sent by the network-side device.

Optionally, the designated subbands further include: M second subbands, and the receiving module is further configured to receive, on the M second subbands, the N subbands sent by the network side device One or more sub-information blocks in an information block, wherein the second sub-band is a sub-band located on both sides of the first sub-band in the receiving frequency band.

Optionally, the receiving module is further configured to cyclically receive the N sub-information blocks according to a specified period.

Optionally, the receiving module includes: a first receiving unit, configured to receive M pieces of the sub-information blocks on the first sub-band according to the specified period.

Optionally, the receiving module further includes: a second receiving unit, configured to monitor and/or receive one or more of the N sub-information blocks on the M second sub-bands according to the specified period. a plurality of sub-information blocks; a third receiving unit, configured to receive the N sub-information blocks on the M second sub-bands according to the access information in the N sub-information blocks and the specified period one or more sub-blocks.

According to yet another embodiment of the present invention, a system for transmitting access information is provided, including: a network side device configured to, according to a specified transmission sequence, transmit N The sub-information blocks are sent to the user-side device; the user-side device is configured to receive the N sub-information blocks that carry the access information and are sent by the network-side device on a designated subband in the receiving frequency band.

Optionally, the network-side device is further configured to cyclically send the N sub-information blocks according to a specified period; the user-side equipment is further configured to cyclically receive the N sub-information blocks according to the specified period.

According to yet another embodiment of the present invention, a storage medium is also provided. The storage medium is arranged to store program code for performing the following steps:

S1, according to the designated sending sequence, send N sub-information blocks carrying access information to the user-side device on the designated sub-band in the sending frequency band.

According to another embodiment of the present invention, a storage medium is also provided. The storage medium is arranged to store program code for performing the following steps:

S1: Receive N sub-information blocks sent by a network-side device on a designated sub-band in a receiving frequency band, where the N sub-information blocks carry access information.

By means of the present invention, by sending or receiving access information on different bandwidths for users with different bandwidth capabilities, the problem of excessive access time caused by the use of transmitting the minimum system bandwidth access in the related art can be solved, and the The effect of reducing the average access delay of users in the 5G communication system.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a hardware structure diagram of a mobile terminal of a method for sending access information according to an embodiment of the present invention;

2 is a flowchart of a method for sending access information according to an embodiment of the present invention;

3 is a distribution diagram of a subband according to an embodiment of the present invention;

4 is a flowchart of a method for sending access information according to an embodiment of the present invention;

5 is a distribution diagram of the division and location of a subband according to an embodiment of the present invention;

6 is a distribution diagram of the division and location of another subband according to the present invention;

FIG. 7 is a distribution diagram of another sub-band division and location according to an embodiment of the present invention;

8 is a structural diagram of an apparatus for sending access information according to an embodiment of the present invention;

9 is a structural diagram of an apparatus for receiving access information according to an embodiment of the present invention;

FIG. 10 is a structural diagram of an apparatus for receiving access information according to an embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence.

Example 1

The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a terminal as an example, FIG. 1 is a hardware structure diagram of a mobile terminal according to a method for sending access information according to an embodiment of the present invention. As shown in FIG. 1 , the mobile terminal 10 may include one or more (only one is shown in the figure) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) , memory 104 for storing data, and transmission means 106 for communication functions. Those of ordinary skill in the art can understand that the structure shown in FIG. 1 is only a schematic diagram, which does not limit the structure of the above electronic device. For example, the terminal 10 may also include more or fewer components than those shown in FIG. 1 , or have a different configuration than that shown in FIG. 1 .

The memory 104 can be used to store software programs and modules of the application software, such as program instructions/modules corresponding to the method for sending access information in the embodiment of the present invention, the processor 102 runs the software programs and modules stored in the memory 104, thereby Executing various functional applications and data processing implements the above-mentioned methods. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, memory 104 may further include memory located remotely from processor 102, which may be connected to terminal 10 through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

Transmission means 106 are used to receive or transmit data via a network. The specific example of the above-mentioned network may include a wireless network provided by the communication provider of the terminal 10 . In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network-side devices through a network-side device so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (Radio Frequency, RF) module, which is used for wirelessly communicating with the Internet.

This embodiment provides a method for sending access information running on the above-mentioned terminal. FIG. 2 is a flowchart of a method for sending access information according to an embodiment of the present invention. As shown in FIG. 2 , the process It includes the following steps:

Step S202, according to the designated sending sequence, send N sub-information blocks carrying access information to the user-side device on the designated sub-bands in the sending frequency band.

Optionally, the specified subband includes at least the following combinations: the first subband, or the first subband and the second subband.

Optionally, the first subband includes: N pieces of the sub-information blocks that carry the access information.

Specifically, when the designated sub-band only includes the first sub-band, step 204: further comprising, according to the first designated sending order corresponding to the first sub-band, the first sub-band will carry the The N sub-information blocks of the access information are sent to the user side equipment.

Optionally, the first subband is located at the center of the transmission frequency band.

Optionally, the bandwidth of the first subband is the smallest bandwidth in the transmission frequency band. Usually, the minimum bandwidth is pre-agreed by the network-side device and the user-side device.

Optionally, the center position of the first subband overlaps with the center position of the transmission frequency band, or the number of subcarriers that differ between the center position of the first subband and the center position of the transmission frequency band is less than or equal to predetermined threshold.

It should be noted that the number of subcarriers corresponding to the specified threshold is 12.

Optionally, the M second subbands include: one or more sub-information blocks in the N sub-information blocks that carry the access information.

Specifically, when the designated subband includes a first subband and a second subband, on the basis of the steps related to including the first subband, step 204 further includes: performing an analysis on the first subband in the P second subbands. The i subbands send one or more sub-information blocks of the N sub-information blocks that carry the access information to the user-side equipment on the i-th sub-band in the i+1-th specified order . It should be pointed out that P is a positive integer.

Optionally, the second subband is a subband located on both sides of the first subband in the transmission frequency band.

Optionally, FIG. 3 is a distribution diagram of a subband according to an embodiment of the present invention. As shown in FIG. 3 , a first subband (center subband) with the smallest bandwidth is set at the center position on the transmission band of the network side device. On both sides of the first sub-band, one or more second sub-bands including sub-band 1, sub-band 2, and sub-band 3 (of course, a scenario including only sub-band 1 is also true) is distributed. When the first subband is located in the middle of the transmission frequency band, the one or more second subbands are center-symmetrical about the first subband located at the center.

It should be noted that the transmission frequency band refers to the frequency band relative to the transmission end of the access information (referring to the network side device in this embodiment). In other words, the sending bandwidth refers to the maximum bandwidth supported by the sending end or the frequency domain resource corresponding to the maximum bandwidth supported by the sending end that allows data service transmission to be the sending frequency band here. The first subband is part or all of the transmission frequency band. For example, for the base station, the transmission frequency band is the frequency domain resource corresponding to the maximum downlink bandwidth supported by the base station.

Optionally, any one of the i+1th specified sequences is a cyclic shift sequence of the other specified sequence. For example, when i=1, the second designation sequence is: sub-block 1, sub-block 2, sub-block 3, sub-block 4, and when i=2, the third designation sequence is: sub-block 2, sub-block 3, Subblock 4, Subblock 1. Of course, the number of steps of the cyclic shift can be determined according to the number of blocks of the actually transmitted access information, that is, for example, when i=5, the sixth specified order is: sub-block 1, sub-block 2, sub-block 3, sub-block When block 4 and sub-block 5, the seventh specified order when i=6 may also be: sub-block 3, sub-block 4, sub-block 5, sub-block 1, sub-block 2.

It should be pointed out that any one of the i+1th designation orders may be the same as the other designation order.

Optionally, the first specified sequence is a cyclic shift sequence of any specified sequence in the i+1th specified sequence. Please refer to the above description for corresponding examples.

Optionally, any one of the first specification order and the i+1th specification order is different.

Optionally, before the above-mentioned sending step, the method further includes: carrying the N sub-information blocks carrying the access information on the designated sub-band. It should be pointed out that when the time-frequency resources of the subband are large enough, the specified subband can carry multiple sub-information blocks of different types.

Optionally, the access information indicated above includes at least the following information: broadcast signal, broadcast channel, downlink beam reference signal, synchronization signal, random access channel, random access signal, uplink beam reference signal, downlink control channel, downlink data channel, the aforementioned control channel, and the aforementioned data channel.

Optionally, the downlink beam reference signal is mainly used for scanning the transmission beam of the network side device and/or the corresponding receiving beam of the user side device in the downlink access or transmission process, and the uplink beam reference signal is mainly used for uplink access or scanning. Scanning of the transmit beam at the user side device end and/or the corresponding receive beam at the network side device end during the transmission process. Further preferably, the scanning of the beam here can be understood as the measurement of the reference signal received power (Reference Signal Received Power, RSRP for short) of the beam.

Optionally, when the access information includes a downlink control channel for carrying uplink grant information in the access process, the downlink control channel is only sent on the minimum bandwidth by default.

Optionally, the access information on the first subband is further used to indicate at least one of the following: the bandwidth capability of the user side equipment, the system bandwidth capability corresponding to the transmission frequency band, the sub-information block in the first subband. The transmission information of the two subbands.

Specifically, when the access information includes a random access channel or an uplink beam reference signal, the access information carries the user bandwidth capability. It should be pointed out that the user bandwidth capability includes the maximum access bandwidth or the maximum transmission bandwidth that the user can support.

Optionally, the sending information of the sub-information block in the second sub-band includes: whether the second sub-band transmits the access information; the access information is transmitted in the second sub-band The sub-information block index of the access information; the sequence of the sub-information blocks transmitted on the second sub-band of the access information; the specified period value of the access information transmitted on the second sub-band.

It should be pointed out that when the above indication information is carried in the transmission of the access information of the first subband, the network side device may carry the indication information in an explicit manner or an implicit manner through the access information of the first subband. Explicit methods, such as: indicating by the content in the sub-information block of the access information in the first subband, implicit methods, such as: transmitting time-frequency resources that are different in the first subband through the sub-information blocks of the access information location, different transmission sequences, etc. It should be noted here that, when notified through high-layer signaling, the indication information can only be notified to the user-side device by the base station or the network side through high-layer signaling after the user-side device accesses the system. Therefore, in the embodiments of the present invention, the following situation is not excluded, that is, one or more items of the above-mentioned indication information are carried through the access information on the first subband, and the other one or more items are carried through high-layer signaling notified.

Optionally, the meaning of the N sub-information blocks carrying the access information is that the network-side device performs block processing on the access information, and sets the divided sub-blocks in the sub-information blocks respectively. It should be pointed out that N is a positive integer.

It should be pointed out that the above-mentioned specified sending order refers to the sending order of the sub-blocks of the access information. The designation sequence is preset by the network-side device and the user-side device.

Optionally, the N sub-information blocks of the access information respectively have the ability to decode independently, and can instruct the receiving end to decode each received sub-information block. It should be pointed out that the multiple information blocks are multiple components of the access information, wherein the intersection of the multiple components is empty, and the access information is collectively included. The access information is divided into multiple information blocks after uniform coding, and any information block in the multiple information blocks includes access information.

Optionally, N pieces of the sub-information blocks are sent cyclically according to a specified period preconfigured by the network-side device and the user-side device.

Specifically, the specified period refers to a period corresponding to a transmission opportunity for transmitting the access information according to the specified transmission order. The network side device may choose to send or not send the access information in the specified period according to actual needs, but the corresponding user side equipment needs to monitor and/or receive the access information in the specified period.

Optionally, the specified period corresponding to the first subband is equal to the specified period corresponding to any one of the P second subbands.

Optionally, the specified period corresponding to the first subband is smaller than the specified period corresponding to any one of the P second subbands.

The specified period corresponding to the first subband is in a multiple relationship with the specified period corresponding to any one of the P second subbands.

Through the above steps, the problem of excessive access time caused by the use of transmission of minimum system bandwidth access in the related art is solved, and the effect of reducing the average access delay of users in the 5G communication system is achieved.

From the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, or a network-side device, etc.) execute the methods described in the various embodiments of the present invention.

Example 2

This embodiment provides a method for sending access information running on the above-mentioned terminal. FIG. 4 is a flowchart of a method for sending access information according to an embodiment of the present invention. As shown in FIG. 4 , the process It includes the following steps:

Step S402: Receive N sub-information blocks sent by the network-side device on a designated sub-band in the receiving frequency band, where the N sub-information blocks carry access information.

Optionally, the specified subband includes at least the following combinations: the first subband, or the first subband and the second subband.

Specifically, when the designated subband only includes the first subband, step 402 further includes: on the first subband, receiving N pieces of the sub information blocks sent by the network side device.

Optionally, the first subband is located at the center of the receiving frequency band.

Optionally, the bandwidth of the first subband is the smallest bandwidth in the receiving frequency band. Usually, the minimum bandwidth is pre-agreed by the network-side device and the user-side device.

Optionally, the center position of the first subband overlaps with the center position of the transmission frequency band, or the number of subcarriers that differ between the center position of the first subband and the center position of the transmission frequency band is less than or equal to predetermined threshold.

It should be noted that the number of subcarriers corresponding to the specified threshold is 12.

Specifically, when the specified subband includes a first subband and a second subband, on the basis of the steps related to including the first subband, step 402 further includes: on the M second subbands, receiving One or more sub-information blocks in the N sub-information blocks sent by the network-side device.

It should be pointed out that since the bandwidth capability of the user-side device is generally not stronger than that of the network-side device, M is a positive integer less than or equal to P.

Optionally, the second subband is a subband located on both sides of the first subband in the receiving frequency band.

It should be noted that the receiving frequency band refers to the frequency band relative to the transmitting end of the access information (referring to the network side device in this embodiment). In other words, the receiving bandwidth refers to the maximum bandwidth supported by the receiving end or the frequency domain resource corresponding to the maximum bandwidth that the receiving end supports and allows data service transmission to be the receiving frequency band here. The first subband is part or all of the receive frequency band. For example, for the terminal, the receiving frequency band is the frequency domain resource corresponding to the maximum downlink bandwidth supported by the terminal.

Optionally, the N sub-information blocks are cyclically received according to a specified period.

Specifically, the specified period refers to a period corresponding to a transmission opportunity for transmitting the access information according to the specified transmission order. The user-side equipment needs to monitor and receive the access information on a specified period.

Specifically, the specified period is preconfigured by the network side device and the user side device.

Optionally, the N sub-information blocks are received on the first sub-band according to the specified period.

Optionally, the user side device listens (blind detection) from the second subband and/or receives one or more of the N sub-information blocks of the access information according to the specified period corresponding to the first sub-band by default.

Optionally, the user-side equipment receives the N sub-information blocks of the access information from the second sub-band according to the specified period indicated by the access information through the received access information indication from the first sub-band. Or, the user side equipment monitors (blind detection) and/or receives N sub-information of the access information from the second sub-band according to the specified period corresponding to the first sub-band by default during the access process One or more of the blocks, after being accessed, receive one or more of the N sub-information blocks of the received information from multiple second sub-bands according to the period indicated by the high-layer signaling by receiving the high-layer signaling instruction. multiple.

Specifically, in this embodiment, the following scenarios are also provided to facilitate understanding of the technical solutions described in the foregoing embodiments.

scene 1

Different bandwidths have the same period, the network side equipment is the base station, and the user side equipment is the UE.

The base station notifies the UE of some system information, public information, uplink random access information, etc. through a physical broadcast channel (Physical Broadcast Channel, PBCH for short), and the UE needs to receive and learn the information indicated in the PBCH during initial access.

It is assumed that a PBCH includes four sub-blocks (or information blocks), which are PBCH sub-block 0, PBCH sub-block 1, PBCH sub-block 2, and PBCH sub-block 3. The broadcast information indicated in the four sub-blocks may be the same may also be different. As shown in Figure 1, the base station transmits PBCH sub-block 0, PBCH sub-block 1, PBCH sub-block 2 and PBCH sub-block 3, it is worth noting that the block marked with the same pattern (color) at a particular moment in Figure 1 is a sub-band. For example, in Figure 1, there are four sub-bands under the system bandwidth. The PBCH is sent on three subbands near the middle of the system bandwidth. On the subband closest to the minimum bandwidth other than the minimum bandwidth, PBCH sub-block 1, PBCH sub-block 2, PBCH sub-block 3 and PBCH sub-block 3 and PBCH sub-block 0, on the sub-band next to the minimum bandwidth outside the minimum bandwidth, transmit PBCH sub-block 2, PBCH sub-block 3, PBCH sub-block 1 and PBCH sub-block 1.

FIG. 5 is a distribution diagram of division and location of a subband according to an embodiment of the present invention. As shown in FIG. 5 , the minimum bandwidth is located in the middle of the system bandwidth, or the center frequency of the minimum bandwidth and the center frequency of the system bandwidth are coincident or the difference between the two is not more than 12 subcarrier intervals. In addition to the minimum bandwidth, it also includes 3 sub-bands, each of which consists of two discontinuous frequency bands, one of which is located above the minimum bandwidth and the other is located below the minimum bandwidth. For example, in Figure 5, sub-band 1, sub-band Band 2 and Subband 3.

The division of subbands in the system bandwidth is determined according to the different UE bandwidths supported by the system. For example, the minimum bandwidth in Figure 5 is a type of UE bandwidth supported by the system, and the combination of the minimum bandwidth and subband 1 is another UE bandwidth supported by the system. The combination of minimum bandwidth, subband 1 and subband 2 is the third UE bandwidth supported by the system, and the combination of minimum bandwidth, subband 1, subband 2 and subband 3 is the fourth UE bandwidth supported by the system, which is also the system bandwidth. .

Through the above-mentioned sub-band division method and PBCH resource mapping and transmission method in each sub-band, users supporting different bandwidths can obtain different sub-blocks of PBCH from the corresponding bandwidth, so that users supporting wider bandwidth can obtain system broadcasts faster information. For example, for UE3, it can receive the PBCH on the minimum bandwidth, sub-band 1 and sub-band 2, so it can obtain the complete information of the four sub-blocks of the PBCH after receiving the PBCH at time t0+k, so UE3's The access delay is k; for UE2, it can receive the PBCH on the minimum bandwidth and subband 1, so it can obtain the complete information of the four sub-blocks of the PBCH after receiving the PBCH at time t0+2k, so UE2 The access delay is 2k; for UE1, its bandwidth is the smallest, and it can only receive the PBCH on the smallest bandwidth, so it needs to receive the PBCH at time t0+3k before it can obtain the four sub-blocks of the PBCH. Therefore, the access delay of UE1 is 3k, and its access delay is the longest.

It is worth noting that the access information in this embodiment of the present invention is not limited to only PBCH, but may also be a beam reference signal (Beam Reference Signal, referred to as BRS), a synchronization signal (Synchronization Signal, referred to as SS), uplink physical A random access channel (Physical Random Access Channel, PRACH for short), a downlink control channel, a downlink data channel, an uplink control channel, or an uplink data channel, or any combination thereof.

In addition, it should be pointed out that each subband is not limited to transmitting only PBCH, and it is also possible to multiplex PBCH and other signals or channels for beam scanning transmission. Other signals or channels here include: Beam Reference Signals (Beam Reference Signals) Signal, referred to as BRS), synchronization signal (Synchronization Signal, referred to as SS), one or more of the paging signal. The PBCH and other signals or channels may be multiplexed in one subband in a frequency division, time division, or time division manner. And there may not be multiplexing of other signals or channels on all PBCH transmission moments and PBCH transmission subbands. FIG. 6 is a distribution diagram of the division and location of another subband according to the present invention. As shown in Fig. 6, the synchronization signal and PBCH are multiplexed in one subband by time division, and multiplex transmission is performed only on the minimum bandwidth and only at the time t0+k and time t0+2k, that is, the SS is only at the minimum bandwidth. It is transmitted over the bandwidth, and the transmission period of the SS may be different from the transmission period of the PBCH.

scene 2

Different bandwidths have different periods. The network side device is the base station, and the user side device is the UE.

Access information (eg, PBCH) on different subbands may have different transmission periods. In this way, different PBCH transmission periods can be configured for UEs with different bandwidths. For example, the base station will configure smaller PBCH transmission periods for UEs with smaller bandwidth capabilities, so that these UEs can access the system faster. , and a larger PBCH transmission period can be appropriately configured for a UE with larger bandwidth capability, instead of always configuring the same PBCH transmission period as a UE with smaller bandwidth capability, to avoid excessive PBCH overhead.

FIG. 7 is a distribution diagram of still another subband division and location according to an embodiment of the present invention. As shown in Figure 7, PBCHs on different subbands have different transmission periods. The transmission period of PBCH in the minimum bandwidth is k/2, the transmission period of PBCH in subband 1 is k, and the transmission period of PBCH in subband 2 is k/2. The period is 2k. The four sub-blocks of the PBCH are sent cyclically in the PBCH transmission period in the order of PBCH sub-block 0, PBCH sub-block 1, PBCH sub-block 2 and PBCH sub-block 3 in order of minimum bandwidth. It is worth noting that only some of the four sub-blocks of PBCH may be sent on sub-bands other than the minimum bandwidth. For example, in Figure 7, only PBCH sub-block 1 and PBCH sub-block 3 are cyclically sent on sub-band 1 , only PBCH sub-block 2 is cyclically sent on the sub-band.

Different UEs perform blind detection according to the PBCH transmission period of the minimum bandwidth or the minimum PBCH transmission period, where the PBCH transmission period of the minimum bandwidth or the minimum PBCH transmission period is pre-agreed by the base station and the UE, and UEs with different bandwidth capabilities are based on the actual The bandwidth capability is blindly detected on the actual bandwidth. For example, in Figure 4, UE1 blindly detects PBCH on the minimum bandwidth by default, UE2 blindly detects PBCH on the minimum bandwidth and subband 1 by default, and UE3 defaults on the minimum widest, subband 1 and subband 2. Upper blind detection of PBCH.

It should be pointed out that the base station indicates to the UE through the PBCH on the minimum bandwidth whether there is PBCH transmission on other subbands other than the minimum bandwidth at the current transmission moment, and if so, the UE receives the PBCH on the indicated subband. PBCH, otherwise the UE will not blindly detect or receive PBCH on the indicated subband.

Before the UE accesses, the UE performs blind detection according to the minimum bandwidth PBCH transmission period or the minimum PBCH transmission period, wherein the minimum bandwidth PBCH transmission period or the minimum PBCH transmission period is pre-agreed by the base station and the UE, and has different bandwidths The capable UE performs blind detection on the actual bandwidth according to the actual bandwidth capability. After the UE accesses, the base station notifies the UE of the PBCH transmission period of different subbands under the bandwidth capability corresponding to the UE through user-specific high-level signaling. The transmission cycle of monitoring and receiving PBCH.

Through the above-mentioned PBCH transmission and reception method, the access delay of UEs with smaller bandwidth capability is reduced, and the PBCH overhead is effectively controlled. The difference between the access delay of UEs with different bandwidth capabilities and the average access delay is The difference between is effectively smoothed. As shown in FIG. 7 , the access delay of UE1 is 3k/2, and the access delays of UE2 and UE3 are k. Compared with the solution in Embodiment 1 of the present invention (different subbands have the same PBCH transmission period), the access delay of UE3 remains unchanged, and the access delays of UE2 and UE1 are significantly reduced.

Example 3

In this embodiment, an apparatus for sending access information is also provided, and the apparatus is used to implement the foregoing Embodiments 1 and 2 and other preferred implementation manners, which have been described and will not be repeated here. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.

FIG. 8 is a structural diagram of an apparatus for sending access information according to an embodiment of the present invention. As shown in FIG. 8 , the apparatus includes: a sending module 82 .

The sending module 82 is configured to send the N sub-information blocks carrying the access information to the user-side device on the designated sub-bands in the sending frequency band according to the designated sending sequence.

Optionally, the designated subband includes: a first subband of the N sub-information blocks that carry the access information, and the sending module 82 is further configured to follow the first subband corresponding to the first subband. In a designated sending sequence, the N sub-information blocks carrying the access information are sent to the user-side device on the first sub-band.

Optionally, the designated sub-band further includes: P second sub-bands of one or more sub-information blocks in the N sub-information blocks that carry the access information, and the sending module 82 further uses For the i-th sub-band in the P second sub-bands according to the i+1-th specified order, the i-th sub-band will carry the access information in the N sub-information blocks. One or more sub-information blocks are sent to the user side equipment. Optionally, the sending module 82 further includes: cyclically sending the N sub-information blocks according to a specified period.

It should be noted that the above modules can be implemented by software or hardware, and the latter can be implemented in the following ways, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination The forms are located in different processors.

Example 4

This embodiment also provides an apparatus for receiving access information, and the apparatus is used to implement the foregoing Embodiments 1 and 2 and other preferred implementation manners, which have already been described and will not be repeated here. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.

FIG. 9 is a structural diagram of an apparatus for receiving access information according to an embodiment of the present invention. As shown in FIG. 9 , the apparatus includes: a receiving module 92 .

The receiving module 92 is configured to receive N sub-information blocks sent by the network-side device on a designated sub-band in the receiving frequency band, wherein the N sub-information blocks carry access information.

Optionally, the designated subband further includes: a first subband, and the receiving module 92 is further configured to receive the N sub-information blocks sent by the network side device on the first subband.

Optionally, the receiving module 92 further includes: a first receiving unit, configured to receive M pieces of the sub-information blocks on the first sub-band according to the specified period.

Optionally, the designated subbands further include: M second subbands, and the receiving module 92 is further configured to receive the N second subbands sent by the network side device on the M second subbands. One or more sub-information blocks in the sub-information block, wherein the second sub-band is a sub-band located on both sides of the first sub-band in the receiving frequency band.

Optionally, the receiving module 92 further includes: a second receiving unit, configured to monitor and/or receive one of the N sub-information blocks on the M second sub-bands according to the specified period or multiple sub-information blocks; a third receiving unit, configured to receive the N sub-information blocks on the M second sub-bands according to the access information in the N sub-information blocks and the specified period one or more sub-blocks in .

Optionally, the receiving module 92 is further configured to cyclically receive the N sub-information blocks according to a specified period.

It should be noted that the above modules can be implemented by software or hardware, and the latter can be implemented in the following ways, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination The forms are located in different processors.

Example 5

In this embodiment, a transmission system for access information is also provided, and the apparatus is used to implement the above-mentioned Embodiments 1 and 2 and other preferred implementation manners. FIG. 10 shows the reception of access information according to an embodiment of the present invention. The structure diagram of the apparatus, as shown in FIG. 10 , the apparatus includes: a network side device 1002 and a user side device 1004 .

The network-side device 1002 is configured to send N sub-information blocks carrying access information to the user-side device 1004 on the designated sub-bands in the transmission frequency band according to the designated sending sequence;

The user-side device 1004 is configured to receive the N sub-information blocks that carry the access information and are sent by the network-side device 1002 on a designated subband in the receiving frequency band.

Optionally, the network side device 1002 is further configured to, according to the first designated sending order corresponding to the first subband, send the N pieces of the access information that carry the access information on the first subband. The sub-information block is sent to the user-side device 1004; the user-side device 1004 is further configured to receive the N sub-information blocks sent by the network-side device 1002 on the first subband.

Optionally, the network side device 1002 is further configured to specify the i-th sub-band in the p second sub-bands in the i+1-th order, and the i-th sub-band will carry the i-th sub-band. One or more sub-information blocks in the N sub-information blocks of the access information are sent to the user-side device 1004; the user-side device 1004 is further configured to receive, on the M second subbands, One or more sub-information blocks in the N sub-information blocks sent by the network-side device 1002, where P≧M.

The network-side device 1002 is further configured to cyclically send the N sub-information blocks according to the specified period; the user-side equipment 1004 is further configured to cyclically receive the N sub-information blocks according to the specified period.

Example 6

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the above-mentioned storage medium may be configured to store program codes for executing the following steps:

S1, according to the designated sending sequence, send N sub-information blocks carrying access information to the user-side device on the designated sub-band in the sending frequency band.

Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic Various media that can store program codes, such as discs or optical discs.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not described herein again in this embodiment.

Example 7

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the above-mentioned storage medium may be configured to store program codes for executing the following steps:

S1: Receive N sub-information blocks sent by a network-side device on a designated sub-band in a receiving frequency band, where the N sub-information blocks carry access information.

Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic Various media that can store program codes, such as discs or optical discs.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not described herein again in this embodiment.

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present invention can be implemented by a general-purpose computing device, which can be centralized on a single computing device, or distributed in a network composed of multiple computing devices Alternatively, they may be implemented in program code executable by a computing device, such that they may be stored in a storage device and executed by the computing device, and in some cases, in a different order than here The steps shown or described are performed either by fabricating them separately into individual integrated circuit modules, or by fabricating multiple modules or steps of them into a single integrated circuit module. As such, the present invention is not limited to any particular combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (39)

1. A method for sending access information, comprising:

according to a designated transmission sequence, transmitting N sub-information blocks carrying access information to user side equipment on a designated sub-band in a transmission frequency band;

wherein the specified sub-bands comprise at least the following combination cases: a first sub-band, or a first sub-band and a second sub-band; the first sub-band comprises: the N sub information blocks carrying the access information; the second sub-band comprises: one or more sub information blocks of the N sub information blocks carrying the access information.

2. The method of claim 1, wherein the designating the sub-band comprises: a first sub-band of the N sub-information blocks carrying the access information, the method further comprising:

and sending the N sub information blocks carrying the access information to the user side equipment on the first sub band according to a first designated sending sequence corresponding to the first sub band.

3. The method of claim 2, wherein the first sub-band is located at a center position of the transmission frequency band.

4. The method of claim 2, wherein the bandwidth of the first sub-band is a minimum bandwidth in the transmission frequency band.

5. The method according to claim 2, wherein the center position of the first sub-band overlaps with the center position of the transmission band, or the number of sub-carriers whose center positions are different from the center position of the transmission band is less than or equal to a predetermined threshold.

6. The method of claim 5, wherein the predetermined threshold corresponds to a subcarrier number of 12.

7. The method of claim 2, wherein the designating the sub-band further comprises: p second sub-bands of one or more of the N sub-information blocks carrying the access information, the method further comprising:

and sending one or more sub-information blocks of the N sub-information blocks carrying the access information to the user side equipment on the ith sub-band according to the (i + 1) th appointed sequence of the ith sub-band in the P second sub-bands.

8. The method of claim 7, wherein the second sub-band is a sub-band located on both sides of the first sub-band in the transmission frequency band.

9. The method according to claim 7, wherein any one of the i +1 th designated orders is a cyclic shift order of another designated order.

10. The method according to claim 9, wherein the first designated order is a cyclic shift order of any one of the i +1 th designated orders.

11. The method according to claim 7, wherein any one of the first designated order and the i +1 th designated order is different.

12. The method of claim 7, wherein transmitting the N sub-information blocks to the UE on the designated sub-band according to a designated transmission order comprises: and circularly sending the N sub information blocks according to a specified period.

13. The method of claim 12, wherein the designated period is a period corresponding to a transmission opportunity for transmitting the access information in the designated transmission order.

14. The method according to claim 12, wherein the specified period is preconfigured by the network side device and the user side device.

15. The method according to claim 13, wherein the specified periodicity for the first subband is equal to the specified periodicity for at least one of the P second subbands.

16. The method according to claim 13, wherein the specified periodicity associated with the first subband is less than the specified periodicity associated with any of the P second subbands.

17. The method according to claim 13, wherein the specified period corresponding to the first sub-band is a multiple of the specified period corresponding to any one of the P second sub-bands.

18. The method according to any of the claims 1 to 17, wherein the access information comprises at least one of:

a broadcast signal, a broadcast channel, a downlink beam reference signal, a synchronization signal, a random access channel, a random access signal, an uplink beam reference signal, a downlink control channel, a downlink data channel, the control channel, and the data channel.

19. The method of any of claims 7 to 17, wherein the access information on the first sub-band is further used to indicate at least one of:

the bandwidth capability of the user side equipment, the system bandwidth capability corresponding to the sending frequency band, and the sending information of the sub information block in the second sub band.

20. A method for receiving access information, comprising:

receiving N sub-information blocks sent by a network side device on a designated sub-band in a receiving frequency band, wherein the N sub-information blocks carry access information, and the designated sub-band at least comprises the following combination conditions: a first sub-band, or a first sub-band and a second sub-band; the first sub-band comprises: the N sub information blocks carrying the access information; the second sub-band comprises: one or more sub information blocks of the N sub information blocks carrying the access information.

21. The method of claim 20, wherein the designating the sub-band comprises: a first sub-band, the method further comprising:

and on the first subband, receiving the N sub information blocks sent by the network side equipment.

22. The method of claim 21, wherein the first sub-band is located at a center position of the receive frequency band.

23. The method of claim 21, wherein the designating the sub-band further comprises: m second subbands, the method further comprising:

and receiving one or more sub information blocks in the N sub information blocks sent by the network side equipment on the M second subbands.

24. The method of claim 21, wherein the second sub-band is a sub-band of the receiving frequency band located on both sides of the first sub-band.

25. The method of claim 23, further comprising:

and circularly receiving N sub information blocks according to a specified period.

26. The method of claim 25, further comprising:

receiving the N sub-information blocks on the first sub-band in accordance with the specified periodicity.

27. The method of claim 25, further comprising:

listening and/or receiving one or more of the N sub-information blocks on the M second sub-bands in accordance with the specified periodicity, or,

receiving one or more of the N sub-information blocks on the M second sub-bands according to the access information in the N sub-information blocks and the specified period.

28. An apparatus for transmitting access information, comprising:

a sending module, configured to send, according to a specified sending order, N sub-information blocks carrying access information to a user side device on a specified sub-band in a sending frequency band, where the specified sub-band at least includes the following combination situations: a first sub-band, or a first sub-band and a second sub-band; the first sub-band comprises: the N sub information blocks carrying the access information; the second sub-band comprises: one or more sub information blocks of the N sub information blocks carrying the access information.

29. The apparatus of claim 28, wherein the designated sub-band comprises: the sending module is further configured to send the N sub-information blocks carrying the access information to the ue on the first sub-band according to a first designated sending sequence corresponding to the first sub-band.

30. The apparatus of claim 28, wherein the designated sub-band further comprises: the sending module is further configured to send, to an ith subband in the P second subbands, one or more sub information blocks in the N sub information blocks that carry the access information to the ue on the ith subband according to an i + 1-th designated sequence.

31. The apparatus of claim 30, wherein the sending module is further configured to: and circularly sending the N sub information blocks according to a specified period.

32. An apparatus for receiving access information, comprising:

a receiving module, configured to receive N sub information blocks sent by a network device on a specified sub-band in a receiving frequency band, where the N sub information blocks carry access information, and the specified sub-band at least includes the following combination situations: a first sub-band, or a first sub-band and a second sub-band; the first sub-band comprises: the N sub information blocks carrying the access information; the second sub-band comprises: one or more of the N sub-information blocks carrying the access information.

33. The apparatus of claim 32, wherein the designated subband further comprises: the receiving module is further configured to receive, on the first subband, the N sub information blocks sent by the network side device.

34. The apparatus of claim 33, wherein the designated sub-band further comprises: the receiving module is further configured to receive, on the M second subbands, one or more sub information blocks of the N sub information blocks sent by the network side device, where the second subbands are subbands located on both sides of the first subband in the receiving frequency band.

35. The apparatus of claim 34, wherein the receiving module is further configured to receive N of the sub-information blocks according to a specified periodicity cycle.

36. The apparatus of claim 35, wherein the receiving module further comprises:

a first receiving unit, configured to receive the M sub-information blocks on the first sub-band according to the specified period.

37. The apparatus of claim 35, wherein the receiving module further comprises:

a second receiving unit, configured to listen to and/or receive one or more sub information blocks of the N sub information blocks on the M second subbands according to the specified period;

a third receiving unit, configured to receive one or more sub information blocks of the N sub information blocks on the M second subbands according to the access information in the N sub information blocks and the specified period.

38. A system for transmitting access information, comprising:

the network side equipment is used for sending the N sub-information blocks carrying the access information to the user side equipment on the appointed sub-band in the sending frequency band according to the appointed sending sequence;

the ue is configured to receive, on a designated subband in a receiving band, the N sub information blocks carrying the access information and sent by the network side device, where the designated subband at least includes the following combination conditions: a first sub-band, or a first sub-band and a second sub-band; the first sub-band comprises: the N sub information blocks carrying the access information; the second sub-band comprises: one or more sub information blocks of the N sub information blocks carrying the access information.

39. The system of claim 38,

the network side equipment is also used for circularly sending the N sub information blocks according to a specified period;

the user side device is further configured to receive N sub information blocks cyclically according to the specified period.

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