CN120152029A

CN120152029A - Uplink data transmission method, device, equipment and storage medium

Info

Publication number: CN120152029A
Application number: CN202311711513.9A
Authority: CN
Inventors: 姜炜; 林志鹏; 谢振华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-12-12
Filing date: 2023-12-12
Publication date: 2025-06-13
Also published as: WO2025124281A1

Abstract

The application discloses an uplink data transmission method, a device, equipment and a storage medium, which belong to the technical field of communication, wherein the uplink data transmission method in the embodiment of the application comprises the steps that a terminal acquires first information, wherein the first information is related configuration information of uplink data transmission in a non-connection state, and the first information comprises at least one of repeated transmission related information, retransmission related information and TA information; and the terminal performs uplink data transmission according to the first information.

Description

Uplink data transmission method, device, equipment and storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to an uplink data transmission method, an uplink data transmission device, uplink data transmission equipment and a storage medium.

Background

In a communication system, there are three states of an idle state of a radio resource control (Radio Resource Control, RRC), an inactive (inactive) state of the RRC, and an RRC connected state of the air interface of the terminal. The terminal in the RRC idle state or the inactive state can be called as a terminal in the non-connected state, and the terminal can access the network through a random access process to enter the RRC connected state.

When the terminal is in the RRC connection state, the terminal can perform data transmission with the network side equipment. The data transmission in the non-connected state is a special transmission mechanism, which allows the terminal to transmit and receive the terminal-specific data (DEDICATE DATA) with the network side without entering the connected state. However, how to realize the uplink data transmission in the non-connection state does not provide a solution at present, so the reliability of the uplink data transmission in the non-connection state cannot be ensured.

Disclosure of Invention

The embodiment of the application provides an uplink data transmission method, an uplink data transmission device, uplink data transmission equipment and a storage medium, which can solve the problem of how to realize uplink data transmission in a non-connection state so as to ensure the reliability of the uplink data transmission.

In a first aspect, a method for transmitting uplink data is provided, where a terminal obtains first information, where the first information is related configuration information of uplink data transmission in a non-connection state, where the first information includes at least one of retransmission related information, and time advance (TIMING ADVANCE, TA) information, and the terminal performs uplink data transmission according to the first information.

The second aspect provides an uplink data transmission method, which comprises the steps that network side equipment sends first information to a terminal, wherein the first information is related configuration information of uplink data transmission in a non-connection state and is used for executing the uplink data transmission, and the first information comprises at least one of repeated transmission related information, retransmission related information and TA information.

In a third aspect, an uplink data transmission device is provided, where the device includes an acquisition module and a transmission module. The acquisition module is used for acquiring first information, wherein the first information is related configuration information of uplink data transmission in a non-connection state, and the first information comprises at least one of repeated transmission related information, retransmission related information and TA information. And the transmission module is used for executing uplink data transmission according to the first information acquired by the acquisition module.

In a fourth aspect, an uplink data transmission apparatus is provided, which includes a transmitting module. The sending module is used for sending first information to the terminal, wherein the first information is related configuration information of uplink data transmission in a non-connection state and is used for executing the uplink data transmission, and the first information comprises at least one of repeated transmission related information, retransmission related information and TA information.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to obtain first information, where the first information is related configuration information of uplink data transmission in a non-connected state, and the first information includes at least one of retransmission related information, and TA information. The communication interface is used for executing uplink data transmission according to the first information.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which program or instructions when executed by the processor implement the steps of the method as described in the first aspect.

In an eighth aspect, a network side device is provided, where the network side device includes a processor and a communication interface, where the communication interface is configured to send first information to a terminal, where the first information is related configuration information of uplink data transmission in a non-connected state, and the first information is used to perform uplink data transmission, and the first information includes at least one of retransmission related information, and TA information.

In a ninth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In a tenth aspect, there is provided a wireless communication system comprising a terminal operable to perform the steps of the method as described in the first aspect and a network side device operable to perform the steps of the method as described in the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the program/program product being executed by at least one processor to implement the steps of the uplink data transmission method as described in the first aspect, or to implement the steps of the uplink data transmission method as described in the second aspect.

In the embodiment of the application, the terminal can acquire the relevant configuration information of uplink data transmission in a non-connection state, wherein the relevant configuration information comprises at least one of repeated transmission related information, retransmission related information and TA information, and uplink data transmission is executed according to the relevant configuration information. In the scheme, for uplink data transmission of the terminal in the non-connection state, the terminal can execute repeated transmission of the uplink data transmission in the non-connection state according to the repeated transmission related information, or execute retransmission of the uplink data transmission in the non-connection state according to the retransmission related information, or execute the uplink data transmission in the non-connection state according to the TA information, so that the terminal can perform data primary transmission, repeated transmission or retransmission with the network side under the condition of not entering the connection state, and the reliability of the uplink data transmission in the non-connection state is improved.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

Fig. 2 is a flowchart of an uplink data transmission method according to an embodiment of the present application;

FIG. 3 is a second flowchart of an uplink data transmission method according to an embodiment of the present application;

Fig. 4 is a third flowchart of an uplink data transmission method according to an embodiment of the present application;

FIG. 5 is a flowchart of an uplink data transmission method according to an embodiment of the present application;

fig. 6 is a flowchart of an uplink data transmission method according to an embodiment of the present application;

fig. 7 is a flowchart of an uplink data transmission method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an uplink data transmission device according to an embodiment of the present application;

Fig. 9 is a second schematic structural diagram of an uplink data transmission device according to an embodiment of the present application;

Fig. 10 is a schematic hardware structure of a communication device according to an embodiment of the present application;

Fig. 11 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application;

fig. 12 is a schematic hardware structure of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms "first," "second," and the like, herein, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, the "or" in the present application means at least one of the connected objects. For example, "A or B" encompasses three schemes, namely scheme one including A and excluding B, scheme two including B and excluding A, scheme three including both A and B. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "indication" according to the application may be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). The direct indication may be understood that the sender explicitly informs the specific information of the receiver, the operation to be executed, the request result, and the like in the sent indication, and the indirect indication may be understood that the receiver determines the corresponding information according to the indication sent by the sender, or determines the operation to be executed, the request result, and the like according to the determination result.

The terms "at least one," "at least one," and the like of the present application mean that they encompass any one, any two, or a combination of two or more of the objects. For example, at least one of a, b, c (item) may represent "a", "b", "c", "a and b", "a and c", "b and c" and "a, b and c", wherein a, b, c may be single or plural. Similarly, the term "at least two" means two or more, and the meaning of the expression is similar to the term "at least one".

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), or other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but the techniques may also be applied to systems other than NR systems, such as the 6 th Generation (6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer), a notebook (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an Ultra-Mobile Personal Computer (Ultra-Mobile Personal Computer, UMPC), a Mobile internet device (Mobile INTERNET DEVICE, MID), a Personal Digital Assistant (PDA), Augmented Reality (Augmented Reality, AR), virtual Reality (VR) devices, robots, wearable devices (Wearable Device), aircraft (FLIGHT VEHICLE), in-vehicle devices (Vehicle User Equipment, VUE), on-board equipment, pedestrian terminals (PEDESTRIAN USER EQUIPMENT, PUE), smart home (home appliances having wireless communication function, such as refrigerator, television, washing machine or furniture, etc.), game machine, personal computer (Personal Computer, PC), teller machine or self-service machine, etc. The wearable device comprises an intelligent watch, an intelligent bracelet, an intelligent earphone, intelligent glasses, intelligent jewelry (intelligent bracelets, intelligent rings, intelligent necklaces, intelligent anklets, intelligent footchains and the like), an intelligent wristband, intelligent clothing and the like. The in-vehicle apparatus may also be referred to as an in-vehicle terminal, an in-vehicle controller, an in-vehicle module, an in-vehicle component, an in-vehicle chip, an in-vehicle unit, or the like. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may include an access network device or core network device, where the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function, or a radio access network element. The Access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) Access Point (AS), or a wireless fidelity (WIRELESS FIDELITY, WIFI) node, etc. Wherein the base station may be referred to as Node B (NB), evolved Node B (eNB), next generation Node B (the next generation Node B, gNB), new air interface Node B (NR Node B), access point, relay station (Relay Base Station, RBS), serving base station (Serving Base Station, SBS), base transceiver station (Base Transceiver Station, BTS), A radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a Home Node B (HNB), a home evolved Node B (home evolved Node B), a transmission and reception point (Transmission Reception Point, TRP), or some other suitable terminology in the art, so long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, and it should be noted that in the embodiment of the present application, only a base station in an NR system is described by way of example, and the specific type of the base station is not limited.

Some concepts and/or terms related to an uplink data transmission method, apparatus, device and storage medium provided in the embodiments of the present application are explained below.

1. Paging (paging)

In NR, paging can be classified as follows, according to the source of the message:

Paging the core network, wherein the paging message is used for informing the terminal when the downlink data arrives at the RRC_IDLE state terminal from the core network;

RAN paging, comes from the base station, when the RRC_INACTIVE state terminal has downlink data to arrive, the base station informs the terminal through paging information;

and the final paging message is issued by the base station to the terminal through an air interface.

Paging messages are carried by a paging control channel (Paging Control Channel, PCCH), the data blocks of which are in turn carried by a paging channel (PAGING CHANNEL, PCH), and the data blocks of the PCH are in turn carried by a physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH). Since the PDSCH is a Downlink shared physical channel, it may carry a Downlink shared channel (Downlink-SHARED CHANNEL, DL-SCH) in addition to the PCH. Therefore, before receiving the Paging message (on PDSCH), the terminal needs to monitor the physical downlink control channel (Physical Downlink Control Channel, PDCCH) first, and then determine whether the network sends the Paging message to itself in the current Paging cycle according to whether the PDCCH carries a Paging radio network temporary identifier (P-RNTI).

In addition to sending the paging message, downlink control information (Downlink Control Information, DCI) scheduling the page may also carry a short message (short message) and tracking reference signal (TRACKING REFERENCE SIGNAL, TRS) resources indicating whether there are available.

In a paging message, a paging record list (PagingRecordList) is carried, and the list carries at least 1 and at most maxNrofPageRec paging records, and each paging record carries a paging identifier of a paged terminal. I.e. one paging message may indicate that a maximum of maxNrofPageRec terminals are paged.

The terminal to be paged has two kinds of identifiers, one is used for paging the terminal in the idle state, and the other is used for paging the terminal in the inactive state. The terminal receiving the paging message is in an idle state or an inactive state.

2. Paging occasions (Paging Occasion, PO) and paging frames (PAGING FRAME, PF)

The PF is a radio frame that may contain one or more POs. The PO is one subframe that may contain a paging message.

The terminal knows the paging cycle, PF, PO and can know the exact time to receive the paging message. In order to reduce power consumption of the terminal in the rrc_idle or rrc_inactive state, the terminal receives the paging message using a discontinuous reception (Discontinuous Reception, DRX) mode. There are several PFs in one DRX cycle, one PF corresponds to several POs, and the terminal wakes up only once to monitor one PO in one DRX cycle. The terminal monitors one PO per DRX cycle. The PO is a set of PDCCH monitoring occasions and may include a plurality of slots (e.g., subframes or symbols) in which paging DCI may be transmitted.

3. Random access procedure

In the prior art, the random access procedure may be a contention-based random access procedure or a non-contention-based random access procedure. The random access procedure may be a four-step random access procedure (also called Type-1 random access procedure) or a two-step random access procedure (also called Type-2 random access procedure).

In the 4-step random access process of competition, a terminal firstly transmits Msg1 to a network, wherein the Msg1 comprises a preamble, after the network detects the preamble, the network transmits Msg2 or a random access response (Random Access Reception, RAR) message, the message comprises the number of the preamble detected by the network and uplink wireless resources distributed to the terminal for transmitting Msg3, after the terminal receives the Msg2, the terminal confirms that at least one of the numbers of the preamble carried in the Msg2 is consistent with the number of the preamble transmitted by the terminal, and then transmits Msg3 comprising competition solving information according to the resources indicated by the RAR, after the network receives the Msg3, the terminal transmits Msg4 comprising the competition solving information, and confirms that the solution information is consistent with the transmission of the terminal in the Msg3, namely, the 4-step random access is completed.

The network includes Uplink grant (UL grant) information for indicating Msg3 Physical Uplink SHARED CHANNEL, PUSCH scheduling information in the RAR, and includes Random ACCESS CHANNEL Preamble ID (RAPID), temporary cell radio network temporary identifier (Temporary Cell-Radio Network Temporary Identifier, TC-RNTI), TA, and the like. If the network does not receive the Msg3 PUSCH, retransmission of the Msg3 PUSCH may be scheduled in the TC-RNTI scrambled PDCCH.

For the contention Random access process, different terminals randomly select preambles for transmission, so that different terminals may select the same preamble for transmission on the same time-frequency radio resource (Random access channel (RO) resource), which can be understood as a preamble collision of the terminals. In this case, when different terminals receive the same RAR, the different terminals transmit Msg3 PUSCH according to the scheduling information in the RAR UL grant. Since the prior art does not support repeated transmission of the Msg3 PUSCH, the network can only solve the PUSCH (including the contention resolution information) sent by one terminal on one Msg3 PUSCH scheduling resource, so the network may include the contention resolution information received in the Msg3 in the Msg 4. If the contention resolution information in the Msg4 received by the terminal is matched with the contention resolution information sent by the terminal in the Msg3 PUSCH, the terminal considers that the contention resolution is successful. If there is no match, then the contention resolution is deemed unsuccessful.

If the contention resolution is unsuccessful, the terminal reselects a Random access channel (Random ACCESS CHANNEL, RACH) transmission resource, performs Physical Random access channel (Physical Random ACCESS CHANNEL, PRACH) transmission, and performs the next Random access attempt.

At NR Rel-16, a two-step random access procedure 2-step RACH is introduced. The first step is for the terminal to send MsgA to the network side. After receiving MsgA, the network side sends MsgB to the terminal, if the terminal does not have MsgB within a certain period of time, the terminal will accumulate the counter counting MsgA the number of times of transmission and resend MsgA. If the counter counting MsgA the number of transmissions reaches a certain threshold, the terminal switches from the 2-step random access procedure to the 4-step random access procedure. MsgA includes MsgApreamble part and MsgAPUSCH part, preamble part is sent on RO for 2-step RACH, PUSCH part is sent on MsgAPUSCH resources with which the transmission MsgApreamble and RO want to associate. MsgAPUSCH resources are a set of PUSCH resources configured with respect to each PRACH slot, including time frequency resources and Demodulation reference signal (Demodulation REFERENCE SIGNAL, DMRS) resources.

4. Repeated transmission

In general, coverage of an uplink channel is more easily limited due to factors such as limited power of a terminal, and it is necessary to consider that coverage or reliability is improved by repeating transmission. Taking physical uplink control channel (Physical Uplink Control Channel, PUCCH) repetition transmission as an example, dedicated (dedicated) PUCCH repetition transmission and common (common) PUCCH repetition transmission are classified.

Prior to NR Rel-16, dedicated PUCCH repeat transmissions are configured with PUCCH formats, such as by nrofSlots parameters in PUCCH-FormatConfig. In NR Rel-17, dedicated PUCCH retransmission can be configured with PUCCH-RepetitionNrofSlots-r17 in each PUCCH resource below the PUCCH-config IE, thereby indirectly implementing dynamic PUCCH retransmission.

The number of repetitions of common PUCCH repeated transmission is {1,2,4,8}. The supported indication mode for configuring the PUCCH repeated transmission mainly comprises two modes, namely, one repetition number is configured through a system information block (System Information Block, SIB), a terminal with the transmission capability of the common PUCCH repeated transmission can transmit based on the configured repetition number, and the other two modes, at least two repetition numbers are configured through the SIB, the terminal with the transmission capability of the common PUCCH repeated transmission can be dynamically scheduled by a base station to carry out the PUCCH repeated transmission, and the indicated repetition number is one of the at least two repetition numbers.

5. Hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) retransmissions

The HARQ scheme increases both the reliability of the system and the transmission efficiency of the system. HARQ is a stop-and-go protocol that includes multiple processes. The stop-and-wait protocol is that the sender stops temporarily every time it sends a packet, waiting for acknowledgement from the receiver. When the data packet arrives at the receiving end, the data packet is detected, if the data packet is received correctly, a confirmation signal is returned, and if the data packet is wrong, a non-confirmation signal is returned. When the transmitting end receives the confirmation signal, new data is transmitted, otherwise, the data packet transmitted last time is retransmitted. The multiple processes refer to that a transmitting end runs multiple sets of different stop-and-go protocols on channels in parallel, and data and signaling are transmitted in an interlaced mode by utilizing gaps among different channels, so that the channel utilization rate is improved. For uplink HARQ retransmissions, since in NR, DCI indication is required both for retransmissions and for new transmissions. If the base station does not receive uplink data at the resource position indicated by the DCI or the received uplink data has errors, the base station sends new DCI to indicate the terminal to retransmit.

Autonomous retransmissions are introduced in the NR for unlicensed band operation, in particular if the terminal device does not receive an acknowledgement or dynamic grant for the HARQ process before the timer expires, the terminal device interprets as a non-acknowledgement for the configuration grant transmission. The terminal device then performs retransmission for the HARQ process in configuring the grant resources. If there is a new packet to send, retransmission should be prioritized. Autonomous retransmission using the configuration grant resources as in unlicensed band operation would be detrimental to deterministic transmission of time-sensitive communication traffic because the configuration grant resources are used for retransmission of one previous packet of time-sensitive communication traffic, while no resources can be used for transmitting a new packet of time-sensitive communication traffic. Thus, subsequent transmissions of time sensitive communication traffic will be delayed.

6、TA

The TA is issued to the terminal by the base station, and indicates the time advance adjusted when the uplink channel (e.g. PUSCH, PUCCH) and Sounding reference signal (Sounding REFERENCE SIGNAL, SRS) are transmitted, and the time advance Command (TIMING ADVANCE Command, TAC) is a Command indicating the terminal to adjust the TA.

In NR, TA information is transferred to the terminal in two main ways, namely, an initial time advance command in RAR message and a time advance command in media access Control Element (MEDIA ACCESS Control-Control Element) message. Wherein an initial timing advance command is communicated in the RAR message, the terminal applies the timing advance value extracted from the RAR for the first uplink message after the PRACH. And after the initial connection is completed, the terminal adjusts uplink transmission according to the timing advance of the MAC-CE.

The initial TAC by RAR is approximately 12 bits and ranges from 0 to 3846, an absolute TA. The TAC through MAC-CE is approximately 6 bits, ranging in value from 0 to 63, a relative TA. The TA is controlled by the MAC layer and implemented by the physical layer. The TA value depends on the signal propagation delay from the base station to the terminal, i.e. different terminals located at different positions will have different TA values. The goal of the TAC is to make the uplink transmission consistent from all terminals to the base station.

The uplink data transmission method provided by the embodiment of the application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

The embodiment of the application provides an uplink data transmission method, and fig. 2 shows a flow chart of the uplink data transmission method provided by the embodiment of the application. As shown in fig. 2, the uplink data transmission method provided in the embodiment of the present application may include the following steps 201 and 202.

Step 201, the terminal acquires first information.

In the embodiment of the application, the first information is configuration information related to uplink data transmission in a non-connection state, and the first information comprises at least one of retransmission related information, retransmission related information and TA information.

It should be noted that, in the embodiment of the present application, the non-connection state may be an RRC-idle state, an RRC-inactive state, a standby (standby) state or an inactive state introduced in a 6G or future mobile communication system, a state before random access after RRC release (release), or a non-connection state before other random accesses.

The uplink data transmission in the embodiment of the present application is the transmission of uplink data information for a terminal in a non-connection state, where the uplink data information includes small data (i.e., data with a data size smaller than a preset bit) and normal data. The uplink data information may include data information in a non-connected state prior to random access for the terminal, including, for example, but not limited to, at least one of paging PDCCH, paging PDSCH, and early data transmission directly scheduled or carried.

Optionally, in the embodiment of the present application, the paging (paging) includes at least one of a short message (short message) and a paging message.

Alternatively, in the embodiment of the present application, the first information may be configured by a network or predefined by a protocol (for example, N times of retransmission are supported by default for retransmission in a non-connected state).

In the case of uplink data transmission in a non-connection state, the reliability of the uplink data transmission can be ensured by repeated transmission, and particularly, the terminal can be configured with repeated transmission related information to support the repeated transmission of the uplink data in the non-connection state.

Optionally, in an embodiment of the present application, the retransmission related information includes at least one of the following:

An indication of whether repeated transmissions are allowed;

Repeating the transmission times;

the repeated transmission resource information is used for representing repeated transmission resources;

repeating the transmitting beam information for characterizing the repeating transmitted beam, beam index or relationship between the beams;

The frequency hopping information is used for representing that the repeated transmission has different frequency domain resources for different times of transmission.

Optionally, in an embodiment of the present application, the repeated transmission resource includes any one of the following:

A contiguous physical time domain resource comprising at least one of a symbol, a slot, a subframe, a frame, a network configuration, or other time unit specified by a protocol;

consecutive active time domain resources.

Optionally, in the embodiment of the present application, the continuous physical time domain resources are used for repeated transmission, and the continuous physical time domain resources are counted in a configured number of repeated transmissions.

In the embodiment of the present application, the continuous effective time domain resources (also referred to as available time domain resources) are used for repeated transmission, and the effective time domain resources are counted in the configured number of repeated transmissions.

Optionally, in the embodiment of the present application, the effective time domain resource is a time domain resource determined based on third information, where the third information includes at least one of an uplink time slot or a non-downlink subband in the uplink time slot, a flexible (flexible) time slot, and an uplink subband in the downlink time slot.

In an exemplary embodiment, the network configures 4 repeated transmissions, and on 4 consecutive uplink timeslots, a downlink subband is configured on the second timeslot, and the downlink subband overlaps with the scheduled repeated transmission frequency domain resource or is relatively close to the scheduled repeated transmission frequency domain resource (for example, does not exceed a threshold value of a certain frequency domain interval), where the second timeslot may be considered as an invalid timeslot, that is, an unavailable timeslot, and it is necessary to continue to find a timeslot capable of completely transmitting 4 repeated transmissions.

Optionally, in the embodiment of the present application, the effective time domain resource is a time domain resource that satisfies a first condition, where the first condition includes at least one of not sending the first signal, not overlapping the first signal in a time domain, not overlapping the first signal in a frequency domain, and not overlapping a time domain interval of the first signal being greater than or equal to a first threshold.

Optionally, in the embodiment of the present application, the first signal includes at least one of a terminal specific PUCCH, a terminal specific PUSCH, PRACH, msgA, msgAPRACH, magAPUSCH, msg PUSCH, a PUCCH for Msg4 or MsgB HARQ feedback, an Msg5 PUSCH, a synchronization signal block (Synchronization Signal Block, SSB), and a channel state Information reference signal (CHANNEL STATE Information-REFERENCE SIGNAL, CSI-RS).

Alternatively, in the embodiment of the present application, the first signal may be a signal before RRC release or a signal in a non-connected state. For example, the signal before RRC release may include a terminal-specific PUCCH, a terminal-specific PUSCH, and the like. The signals in the unconnected state may include PRACH, msgA, msgAPRACH, magA PUSCH, msg3 PUSCH, PUCCH for Msg4 or MsgB HARQ feedback, msg5 PUSCH, etc.

Optionally, in the embodiment of the present application, the number of repeated transmissions has an association relationship with second information, where the second information includes at least one of scheduling information of initial uplink data transmission in a non-connected state, the repeated transmission resource information, and the repeated transmission beam information.

It can be understood that, for the above number of repeated transmissions, the terminal may obtain the association relationship between the number of repeated transmissions and the second information, that is, the number of repeated transmissions is not directly indicated, and the terminal may implicitly determine according to the second information.

Optionally, in an embodiment of the present application, the scheduling information may include at least one of time domain resource allocation (Time Domain Resource Allocation, TDRA) and frequency domain resource allocation ((Frequency Domain Resource Allocation, FDRA).

Illustratively, the network is configured with one TDRA for retransmission, which TDRA is associated with one retransmission number, i.e. the retransmission number is implicitly indicated by TDRA.

Illustratively, the network is configured with 4 consecutive time slots for repeated transmissions, i.e. implicitly indicating a number of repeated transmissions of 4 times, i.e. 4 repeated transmissions using 4 consecutive time slots. Or the network is configured with 4 different beams for repeated transmissions, i.e. implicitly indicating a number of repeated transmissions of 4 times, i.e. 4 repeated transmissions using 4 different beams.

Optionally, in the embodiment of the present application, the number of repeated transmissions is the same as the number of repeated transmissions of the first signal.

Optionally, in the embodiment of the present application, the number of repeated transmissions is a common number of repeated transmissions, where the common number of repeated transmissions is a common number of repeated transmissions in a non-connection state predefined by a network configuration or a protocol.

Optionally, in the embodiment of the present application, the number of repeated transmissions is the same as the set of repeated transmissions used for the first signal. That is, the number of retransmissions may be the same as or different from the number of retransmissions in the same set of the number of retransmissions used for the first signal.

For example, SIB1 may configure one or more repetition times (a set of repetition times) for the repetition transmission of the above uplink data transmission, and also for the determination of the repetition transmission times of Msg1, msg3, or MsgA.

Illustratively, SIB1 configuration TDRA list associates one or more retransmission times with TDRA, and in case TDRA is determined, the retransmission times are also determined. The TDRA list may be used for repeated transmissions of at least one of the uplink data transmissions, msg1, msg3, msgA described above.

Optionally, in the embodiment of the present application, the repeated transmission resources may have the same FDRA or different FDRA at different times, that is, may support frequency hopping or may not support frequency hopping. That is, for the above-mentioned frequency hopping information, frequency domain frequency hopping is supported between different times of transmission of repeated transmission, and the reliability of uplink data transmission can be improved.

Alternatively, in an embodiment of the present application, as shown in fig. 3 in conjunction with fig. 2, the above step 201 may be specifically implemented by the following step 201 a.

Step 201a, the terminal acquires first information from the first message.

Wherein the first information includes the retransmission related information.

In an embodiment of the present application, the first message is any one of the following:

Scheduling DCI or PDCCH of initial transmission of uplink data in a non-connection state;

A channel for downlink data transmission in a non-connected state (e.g., a newly introduced PDSCH for downlink data transmission in a non-connected state);

A downlink channel (e.g., newly introduced DCI or PDCCH for scheduling downlink data transmission in a non-connected state) on which scheduling information for downlink data transmission in the non-connected state is located;

paging DCI or paging PDSCH;

Paging messages;

system messages (e.g., SSBs or SIBs);

RRC release message.

Optionally, in the embodiment of the present application, the relationship between the beams of the repeated transmission includes that the beams used by all the times of transmission of the repeated transmission are the same, or that the beams used by at least part of the times of transmission of the repeated transmission are different.

It will be appreciated that the beams used for all of the repeated transmissions are the same, or the beams used for all of the repeated transmissions are different, or some of the repeated transmissions are the same and another of the repeated transmissions are different.

Optionally, in an embodiment of the present application, the beam used for the retransmission is determined according to at least one of a number of terminals and a number of retransmission times in a first paging message, where the first paging message includes a paging message associated with scheduling information for scheduling the uplink data transmission.

Illustratively, when 4 terminals are paged, all four terminals are scheduled for uplink data transmission and 4 repeated transmissions are indicated. In this case, each terminal may transmit 4 uplink data transmissions using 4 different beams. The determination of the beam may be derived from SRS training in the unconnected state or from CSI-RS measurements.

Optionally, in the embodiment of the present application, the beam used for the repeated transmission is associated with a beam of a second signal, where the second signal includes at least one of a paging PDCCH, a paging PDSCH, one or more downlink signals for repeated transmission of the paging PDCCH, one or more downlink signals for repeated transmission of the paging PDSCH, a CSI-RS, a synchronization signal, a broadcast signal, a Positioning reference signal (Positioning REFERENCE SIGNAL, PRS), and an SRS.

For example, the beam of the uplink data transmission and the downlink beam of the paging PDCCH or the paging PDSCH for scheduling the uplink data transmission are considered to have an uplink-downlink correspondence.

Also, for example, the beam for uplink data transmission and the downlink beam for repeated transmission of the optimal paging PDCCH or paging PDSCH for scheduling uplink data transmission are considered to have an uplink-downlink correspondence.

Also, for example, the beam of the uplink data transmission and the downlink beam of the CSI-RS transmission with the best early measurement result are considered to have an uplink-downlink correspondence.

Optionally, in the embodiment of the present application, the synchronization signals may include at least one of SSB, primary synchronization signal (Primary Synchronization Signal, PSS), secondary synchronization signal (Secondary Synchronization Signal, SSS), PRACH, msg2, msg 4, msgB, SIB1, and other signals for downlink synchronization (for example, downlink synchronization signals or channels defined in 6G).

Optionally, in the embodiment of the present application, the broadcast signal may include at least one of SSB, physical broadcast channel (Physical Broadcast Channel, PBCH), and common PDCCH.

In another case, for uplink data transmission in the non-connection state, the reliability of the uplink data transmission can be ensured through retransmission (retransmission), and specifically, retransmission related information can be configured for the terminal to support the retransmission of the uplink data in the non-connection state.

An indication of whether retransmission is allowed;

retransmission resource information for characterizing the retransmitted resources;

Retransmission beam information characterizing the retransmitted beam or beam index.

Optionally, in an embodiment of the present application, the retransmission resource includes any one of the following:

a first PUSCH resource after the primary transmission of the uplink data in the non-connection state;

PUSCH resources after a first duration of initial uplink data transmission in a non-connected state;

A first semi-static or periodic uplink resource after primary transmission of uplink data in a non-connected state;

resources obtained based on scheduling information for uplink data retransmission in the non-connected state (e.g., resources determined based on the relevant fields or bits (e.g., FDRA or TDRA) in the scheduling information);

A resource determined based on the uplink data primary transmission resource in the unconnected state (i.e. the retransmitted resource has an association relationship with the uplink data primary transmission resource, for example, the retransmitted resource position is a resource separated from the uplink data primary transmission resource by a certain time domain offset, for example, a resource with a time domain phase difference of 2 time slots and the same frequency domain);

A common transmission resource, which is a common resource for transmission in a non-connected state predefined by a network configuration or protocol;

and entering a connection state, and then configuring transmission resources of the network.

Alternatively, in an embodiment of the present application, as shown in fig. 4 in conjunction with fig. 2, the above step 201 may be specifically implemented by the following step 201 b.

Step 201b, the terminal acquires the first information from the second message.

Wherein the first information includes the retransmission related information.

In an embodiment of the present application, the second message is any one of the following:

paging DCI or paging PDSCH;

Paging messages;

system messages (e.g., SSBs or SIBs);

An RRC release message;

A first PDCCH after the primary transmission of the uplink data in the non-connection state;

PDCCH after preset duration of initial transmission of uplink data in a non-connection state.

In another case, for uplink data transmission in the non-connection state, TA information may be configured for the terminal to support uplink data transmission in the non-connection state, so as to ensure reliability of uplink data transmission.

Optionally, in the embodiment of the present application, the first information includes the TA information, where the TA information is any one of the following:

A default TA value (e.g., TA value of 0);

the TA value determined by the terminal according to fourth information, wherein the fourth information comprises at least one of position information of the terminal, tracking area information (such as tracking area identification) of the terminal and TA offset;

A TA value indicated by the network;

The terminal transmits the TA value used in the last uplink.

Optionally, in the embodiment of the present application, the TA value indicated by the network is determined based on at least one of the first location information, the first tracking area information, and the TA offset (which may be determined by the network based on at least one of the following);

The first position information comprises any one of position information of a terminal which is latest measured by an access network and position information of the terminal which is stored by the access network or a core network, and the first tracking area information comprises tracking area information of the terminal which is stored by the access network or the core network.

Optionally, in the embodiment of the present application, the network indicates multiple TA values, which are used for uplink data transmission of multiple paged terminals respectively. Or the network indicates a TA value for uplink data transmission of all paged terminals. Or the network indicates a TA value, which is used for uplink data transmission of the terminal corresponding to the first paging record in the paging message, and a TA offset corresponding to the TA value is respectively configured for other paged terminals.

Optionally, in an embodiment of the present application, the TA offset is indicated by the network. The indication mode of the network indicated TA value or the network indicated TA offset includes any one of the following:

Indicated in a paging PDCCH, paging PDSCH, or other physical signal;

indication in DCI or PDCCH of initial transmission of uplink data in a non-connection state of scheduling;

indication in DCI or PDCCH for scheduling uplink data retransmission in a non-connection state;

An indication in a channel of downlink data transmission in a non-connected state (e.g., a newly introduced PDSCH for the downlink data transmission);

indication in a downlink channel (e.g., newly introduced DCI or PDCCH for scheduling the downlink data transmission) where scheduling information for the downlink data transmission in a non-connected state is located;

The scheduling information of the uplink data transmission in the unconnected state is indicated together (for example, the network indicates the scheduling information of the uplink data transmission of the corresponding terminal and the TAC in each paging record at the same time, and the TAC is used to indicate the TA value of the uplink data transmission).

Optionally, in an embodiment of the present application, the value of the TA offset is determined according to at least one of the following:

Duplex configuration information;

whether a land network or a non-land network;

whether the network coverage size is greater than a second threshold.

Optionally, in the embodiment of the present application, the TA value indicated by the network is an absolute TA value (i.e., the absolute TA value is an absolute indication of the TA value, that is, the TAC from the network used for uplink data transmission is an absolute TAC), which may be directly used for adjusting the uplink transmission time by the terminal.

Alternatively, in the embodiment of the present application, the absolute TA value may be carried in the MAC-CE message.

Optionally, in the embodiment of the present application, the TA value used for the initial transmission of the uplink data in the unconnected state is a default TA value.

Optionally, in the embodiment of the present application, the TA value used for uplink data retransmission in the non-connected state is a TA value indicated by the network.

The network determines a first TA value of the terminal according to the initial uplink data transmission in the non-connected state, indicates the first TA value to the terminal, for example, the first TA value may be carried in DCI or PDCCH for scheduling uplink data retransmission in the non-connected state, and the terminal performs the uplink data retransmission based on the first TA value.

Step 202, the terminal performs uplink data transmission according to the first information.

In the embodiment of the application, the terminal can send uplink feedback information or data information (information of the terminal before random access) in a non-connection state according to the first information.

It can be understood that the terminal can perform repeated transmission of uplink data transmission in a non-connected state according to the repeated transmission related information. Or the terminal can execute retransmission of uplink data transmission in a non-connection state according to the retransmission related information. Or the terminal can perform initial transmission or retransmission of uplink data transmission in a non-connection state according to the TA information.

Optionally, in an embodiment of the present application, the first information includes retransmission related information. The above step 202 may be specifically implemented by the following step 202a or step 202 b.

Step 202a, the terminal performs automatic retransmission or HARQ retransmission of uplink data transmission in a non-connection state according to the first information.

Step 202b, the terminal performs automatic retransmission or HARQ retransmission of uplink data transmission after entering a connection state according to the first information.

Optionally, in the embodiment of the present application, the retransmission of the uplink data transmission is the automatic retransmission. The above-mentioned "the terminal performs automatic retransmission of uplink data transmission" may be specifically implemented by any one of the following:

The terminal performs at least one automatic retransmission in a first time window;

the terminal performs at least one automatic retransmission after the first time window;

the terminal starts at least one automatic retransmission in the first timer;

the terminal performs at least one automatic retransmission after the first timer is overtime;

And the terminal performs at least one automatic retransmission after a first time, wherein the first time is the sum of the time of initial uplink data transmission in a non-connection state and the time domain offset.

Optionally, in an embodiment of the present application, the first time window is determined by a start point and an end point or a start point and a duration predefined by a network configuration or a protocol.

Optionally, in an embodiment of the present application, the first timer may be triggered based on a predefined condition of a network configuration or a protocol.

Optionally, in the embodiment of the present application, the first timer starts to count a next time slot of the time slot where the uplink data is initially transmitted in the non-connected state. Or the first timer starts to count the next uplink time slot of the time slot where the uplink data is initially transmitted in the non-connection state.

Optionally, in the embodiment of the present application, after receiving K retransmissions (for example, a predefined number of times) in the first timer, the first timer is stopped.

Optionally, in the embodiment of the present application, for retransmission of uplink data transmission in a non-connection state, the terminal performs retransmission after entering the connection state.

Optionally, in the embodiment of the present application, for retransmission of uplink data transmission in a non-connected state, the terminal performs retransmission after receiving retransmission scheduling information (for example, the retransmission related information) of the network.

The embodiment of the application provides an uplink data transmission method, wherein a terminal can acquire relevant configuration information of uplink data transmission in a non-connection state, and the method comprises at least one of repeated transmission of relevant information, retransmission of relevant information and TA information, and uplink data transmission is executed according to the relevant configuration information. In the scheme, for uplink data transmission of the terminal in the non-connection state, the terminal can execute repeated transmission of the uplink data transmission in the non-connection state according to the repeated transmission related information, or execute retransmission of the uplink data transmission in the non-connection state according to the retransmission related information, or execute the uplink data transmission in the non-connection state according to the TA information, so that the terminal can perform data primary transmission, repeated transmission or retransmission with the network side under the condition of not entering the connection state, and the reliability of the uplink data transmission in the non-connection state is improved.

The embodiment of the application provides an uplink data transmission method, and fig. 5 shows a flowchart of the uplink data transmission method provided by the embodiment of the application. As shown in fig. 5, the uplink data transmission method provided in the embodiment of the present application may include the following steps 301 to 303.

Step 301, the network side device sends first information to the terminal.

In the embodiment of the present application, the first information is configuration information related to uplink data transmission in a non-connection state, and the first information is used for executing uplink data transmission. The first information includes at least one of retransmission related information, and TA information.

Step 302, the terminal receives first information from a network side device.

Step 303, the terminal performs uplink data transmission according to the first information.

Alternatively, in an embodiment of the present application, as shown in fig. 6 in conjunction with fig. 5, the above step 301 may be specifically implemented by the following step 301a, and the above step 302 may be specifically implemented by the following step 302 a.

Step 301a, the network side device sends a first message to the terminal.

Step 302a, the terminal receives a first message from a network side device.

In the embodiment of the present application, the first message includes first information. Wherein the first information includes retransmission related information. The first message is any one of the following:

A channel for downlink data transmission in a non-connected state;

downlink channel where scheduling information of downlink data transmission in non-connection state is located;

paging DCI or paging PDSCH;

Paging messages;

a system message;

RRC release message.

Alternatively, in an embodiment of the present application, as shown in fig. 7 in conjunction with fig. 5, the above step 301 may be specifically implemented by the following step 301b, and the above step 302 may be specifically implemented by the following step 302 b.

Step 301b, the network side device sends a second message to the terminal.

Step 302b, the terminal receives a second message from the network side device.

In the embodiment of the present application, the second message includes the first information. Wherein the first information includes retransmission related information. The second message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

An RRC release message;

It should be noted that, for the retransmission related information, the TA information and the related schemes thereof, reference may be made to the description in the above embodiments, and the description is omitted here.

The embodiment of the application provides an uplink data transmission method, wherein network side equipment can send relevant configuration information of uplink data transmission in a non-connection state to a terminal, and the method comprises at least one of repeated transmission of relevant information, retransmission of relevant information and TA information, so that the terminal can execute uplink data transmission according to the relevant configuration information. In this scheme, for uplink data transmission of a terminal in a non-connection state, the network side device may configure relevant configuration information of the uplink data transmission in the non-connection state to the terminal, so that the terminal may perform repeated transmission of the uplink data transmission in the non-connection state according to the repeated transmission relevant information, or perform retransmission of the uplink data transmission in the non-connection state according to the retransmission relevant information, or perform uplink data transmission in the non-connection state according to the TA information, so as to implement initial transmission, repeated transmission or retransmission of data between the terminal and the network side under the condition that the terminal does not enter the connection state, thereby improving reliability of uplink data transmission in the non-connection state.

The above embodiments of the method, or various possible implementation manners in the embodiments of the method, may be executed separately, or may be executed in any two or more combinations with each other, and may specifically be determined according to actual use requirements, which is not limited by the embodiments of the present application.

According to the uplink data transmission method provided by the embodiment of the application, the execution main body can be an uplink data transmission device. In the embodiment of the present application, an uplink data transmission device is described by taking an uplink data transmission method performed by the uplink data transmission device as an example.

Fig. 8 shows a schematic diagram of one possible configuration of an uplink data transmission device according to an embodiment of the present application. As shown in fig. 8, the uplink data transmission apparatus 40 may include an acquisition module 41 and a transmission module 42.

The acquiring module 41 is configured to acquire first information, where the first information is related configuration information of uplink data transmission in a non-connected state, and the first information includes at least one of retransmission related information, and TA information. A transmission module 42, configured to perform uplink data transmission according to the first information acquired by the acquisition module 41.

In one possible implementation manner, the retransmission related information includes at least one of the following:

An indication of whether repeated transmissions are allowed;

Repeating the transmission times;

In one possible implementation manner, the repeated transmission times and the second information have an association relationship, wherein the second information comprises at least one of scheduling information, repeated transmission resource information and repeated transmission beam information of initial uplink data transmission in a non-connection state;

or the repeated transmission times are the same as the repeated transmission times of the first signal;

Or the repeated transmission times are public repeated transmission times which are the public repeated times of transmission in a non-connection state predefined by network configuration or protocol;

Or the repeated transmission times are the same as the repeated transmission times set used by the first signal.

In one possible implementation manner, the repeated transmission resources include any one of the following:

consecutive active time domain resources.

In one possible implementation manner, the effective time domain resource is a time domain resource determined based on third information, where the third information includes at least one of an uplink time slot or a non-downlink sub-band in the uplink time slot, a flexible time slot, and an uplink sub-band in the downlink time slot;

Or alternatively

The effective time domain resource is a time domain resource satisfying at least one of the following conditions, wherein the first condition comprises that the first signal is not transmitted, the first signal is not overlapped with the first signal in the time domain, the first signal is not overlapped with the first signal in the frequency domain, and the time domain interval of the first signal is larger than or equal to a first threshold value.

In one possible implementation, the first signal includes at least one of a terminal specific PUCCH, a terminal specific PUSCH, PRACH, msgA, MSGA PRACH, magA PUSCH, an Msg3 PUSCH, a PUCCH for Msg4 or MsgB HARQ feedback, and an Msg5 PUSCH, SSB, CSI-RS.

In one possible implementation manner, the first information includes information related to repeated transmission, and the acquiring module 41 is specifically configured to acquire the first information from the first message;

wherein the first message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

RRC release message.

In one possible implementation, the relationship between the beams of the repeated transmissions includes that the beams used by all of the repeated transmissions are the same, or that the beams used by at least some of the repeated transmissions are different.

In one possible implementation manner, the beam used by the retransmission is determined according to at least one of the number of terminals and the number of retransmission times in a first paging message, where the first paging message includes a paging message associated with scheduling information for scheduling the uplink data transmission;

Or alternatively

The beam used for the repeated transmission is associated with a beam of a second signal, wherein the second signal comprises at least one of a paging PDCCH, a paging PDSCH, one or more downlink signals repeatedly transmitted by the paging PDCCH, one or more downlink signals repeatedly transmitted by the paging PDSCH, a CSI-RS, a synchronous signal, a broadcast signal, a PRS and an SRS.

An indication of whether retransmission is allowed;

In one possible implementation manner, the retransmission resource includes any one of the following:

Resources obtained based on scheduling information of uplink data retransmission in a non-connected state;

A resource determined based on the initially transmitted resource of the uplink data in the non-connected state;

In one possible implementation manner, the obtaining module 41 is specifically configured to obtain the first information from a second message, where the second message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

An RRC release message;

In one possible implementation manner, the first information includes retransmission related information, and the transmission module 42 is specifically configured to perform automatic retransmission or HARQ retransmission of the uplink data transmission in the non-connected state according to the first information, or perform automatic retransmission or HARQ retransmission of the uplink data transmission after entering the connected state according to the first information.

In one possible implementation, the retransmission of the uplink data transmission is an automatic retransmission, and the transmission module 42 is specifically configured to:

at least one automatic retransmission is performed within a first time window;

At least one automatic retransmission is performed after the first time window;

At least one automatic retransmission is performed within the first timer start;

at least one automatic retransmission is performed after the first timer times out;

at least one automatic retransmission is performed after a first time, wherein the first time is the sum of the time of initial transmission of uplink data in a non-connection state and the time domain offset.

In one possible implementation manner, the first information includes TA information, where the TA information is any one of the following:

Default TA value;

The terminal determines a TA value according to fourth information, wherein the fourth information comprises at least one of position information of the terminal, tracking area information of the terminal and TA offset;

A TA value indicated by the network;

The terminal transmits the TA value used in the last uplink.

In one possible implementation manner, the TA value indicated by the network is determined based on at least one of first location information, first tracking area information and TA offset;

the first position information comprises any one of position information of a terminal which is measured by an access network latest, position information of the terminal which is stored by the access network or a core network, and first tracking area information comprises tracking area information of the terminal which is stored by the access network or the core network.

In one possible implementation manner, the TA offset is indicated by the network, and the TA value indicated by the network or the indication manner of the TA offset indicated by the network comprises any one of the following steps:

Indicated in a paging PDCCH, paging PDSCH, or other physical signal;

indication in a channel of downlink data transmission in a non-connected state;

Indication in a downlink channel where scheduling information of downlink data transmission in a non-connection state is located;

And indicating the scheduling information of uplink data transmission in a non-connected state together.

In one possible implementation manner, the TA offset is determined according to at least one of the following:

Duplex configuration information;

whether a land network or a non-land network;

whether the network coverage size is greater than a second threshold.

In one possible implementation, the TA value indicated by the network is an absolute TA value;

the TA value used for primary transmission of the uplink data in the non-connection state is a default TA value;

The TA value used for uplink data retransmission in the non-connected state is the TA value indicated by the network.

The embodiment of the application provides an uplink data transmission device, which can perform repeated transmission of uplink data transmission in a non-connection state according to repeated transmission related information, or perform retransmission of the uplink data transmission in the non-connection state according to retransmission related information, or perform uplink data transmission in the non-connection state according to TA information, so that data primary transmission, repeated transmission or retransmission can be performed with a network side under the condition of not entering the connection state, and the reliability of the uplink data transmission in the non-connection state is improved.

The uplink data transmission device in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the present application are not limited in detail.

The uplink data transmission device provided by the embodiment of the application can realize each process realized by the uplink data transmission method embodiment and achieve the same technical effect, and in order to avoid repetition, the description is omitted.

Fig. 9 shows a schematic diagram of a possible configuration of an uplink data transmission device according to an embodiment of the present application. As shown in fig. 9, the uplink data transmission apparatus 50 may include a transmission module 51.

The sending module 51 is configured to send first information to the terminal, where the first information is related configuration information of uplink data transmission in a non-connection state, and the first information is used to perform uplink data transmission, and the first information includes at least one of retransmission related information, and TA information.

An indication of whether repeated transmissions are allowed;

Repeating the transmission times;

In one possible implementation manner, the sending module 51 is specifically configured to send a first message to the terminal, where the first message includes first information;

wherein the first message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

RRC release message.

An indication of whether retransmission is allowed;

In one possible implementation manner, the sending module 51 is specifically configured to send a second message to the terminal, where the second message includes the first information;

wherein the second message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

An RRC release message;

Default TA value;

A TA value indicated by the network;

The terminal transmits the TA value used in the last uplink.

The embodiment of the application provides an uplink data transmission device, which aims at uplink data transmission in a non-connection state, and the uplink data transmission device can configure relevant configuration information of the uplink data transmission in the non-connection state for a terminal, so that the terminal can execute repeated transmission of the uplink data transmission in the non-connection state according to the repeated transmission relevant information, or execute retransmission of the uplink data transmission in the non-connection state according to the retransmission relevant information, or execute the uplink data transmission in the non-connection state according to TA information, and the terminal can perform initial transmission, repeated transmission or retransmission of the data under the condition that the terminal does not enter the connection state, thereby improving the reliability of the uplink data transmission in the non-connection state.

As shown in fig. 10, the embodiment of the present application further provides a communication device 5000, which includes a processor 5001 and a memory 5002, where the memory 5002 stores a program or instructions that can be executed on the processor 5001, for example, when the communication device 5000 is a terminal, the program or instructions implement each step of the above-mentioned terminal side method embodiment when executed by the processor 5001, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here. When the communication device 5000 is a network side device, the program or the instruction when executed by the processor 5001 implements the steps of the method embodiment of the network side device, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the steps in the uplink data transmission method embodiment. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 11 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 7000 includes, but is not limited to, at least a portion of the components of a radio frequency unit 7001, a network module 7002, an audio output unit 7003, an input unit 7004, a sensor 7005, a display unit 7006, a user input unit 7007, an interface unit 7008, a memory 7009, and a processor 7010, etc.

Those skilled in the art will appreciate that the terminal 7000 may further include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 7010 via a power management system to thereby perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 7004 may include a graphics processing unit (Graphics Processing Unit, GPU) 70041 and a microphone 70042, with the graphics processor 70041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 7006 may include a display panel 70061, and the display panel 70061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 7007 includes at least one of a touch panel 70071 and other input devices 70072. The touch panel 70071 is also referred to as a touch screen. The touch panel 70071 may include two parts, a touch detection device and a touch controller. Other input devices 70072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving the downlink data from the network side device, the radio frequency unit 7001 may transmit the downlink data to the processor 7010 for processing, and in addition, the radio frequency unit 7001 may send the uplink data to the network side device. In general, radio frequency units 7001 include, but are not limited to, antennas, amplifiers, transceivers, couplers, low noise amplifiers, diplexers, and the like.

The memory 7009 may be used to store software programs or instructions and various data. The memory 7009 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 7009 may include a volatile memory or a nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 7009 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 7010 may include one or more processing units, and optionally the processor 7010 integrates an application processor that primarily processes operations involving an operating system, user interfaces, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 7010.

The terminal provided by the embodiment of the present application can implement each process implemented by the above method embodiment and achieve the same technical effects, and the implementation process of each implementation manner mentioned in the embodiment may refer to the related description of the above uplink data transmission method embodiment, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the steps of the uplink data transmission method embodiment. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 12, the network-side apparatus 600 includes an antenna 61, a radio frequency device 62, a baseband device 63, a processor 64, and a memory 65. The antenna 61 is connected to a radio frequency device 62. In the uplink direction, the radio frequency device 62 receives information via the antenna 61, and transmits the received information to the baseband device 63 for processing. In the downlink direction, the baseband device 63 processes information to be transmitted, and transmits the processed information to the radio frequency device 62, and the radio frequency device 62 processes the received information and transmits the processed information through the antenna 61.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 63, and the baseband apparatus 63 includes a baseband processor.

The baseband apparatus 63 may, for example, include at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 12, where one chip, for example, a baseband processor, is connected to the memory 65 through a bus interface, so as to call a program in the memory 65 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 66, such as a common public radio interface (Common Public Radio Interface, CPRI).

Specifically, the network side device 600 of the embodiment of the present application further includes instructions or programs stored in the memory 65 and capable of running on the processor 64, and the processor 64 calls the instructions or programs in the memory 65 to execute the method executed by each module shown in the uplink data transmission device, so as to achieve the same technical effect, and therefore, the description is omitted herein for avoiding repetition.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the uplink data transmission method embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the uplink data transmission method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement each process of the above uplink data transmission method embodiment, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted herein.

The embodiment of the application also provides a wireless communication system which comprises a terminal and network side equipment, wherein the terminal can be used for executing the steps of the uplink data transmission method, and the network side equipment can be used for executing the steps of the uplink data transmission method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the description of the embodiments above, it will be apparent to those skilled in the art that the above-described example methods may be implemented by means of a computer software product plus a necessary general purpose hardware platform, but may also be implemented by hardware. The computer software product is stored on a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes instructions for causing a terminal or network side device to perform the methods according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms of embodiments may be made by those of ordinary skill in the art without departing from the spirit of the application and the scope of the claims, which fall within the protection of the present application.

Claims

1. An uplink data transmission method, comprising:

The terminal acquires first information, wherein the first information is related configuration information of uplink data transmission in a non-connection state, and the first information comprises at least one of repeated transmission related information, retransmission related information and Time Advance (TA) information;

And the terminal executes the uplink data transmission according to the first information.

2. The method of claim 1, wherein the repeated transmission related information comprises at least one of:

An indication of whether repeated transmissions are allowed;

Repeating the transmission times;

3. The method of claim 2, wherein the number of retransmissions has an association with second information, the second information including at least one of scheduling information for initial transmission of uplink data in a non-connected state, the retransmission resource information, and the retransmission beam information;

Or the repeated transmission times are public repeated transmission times, and the public repeated transmission times are public repeated times of transmission in a non-connection state predefined by network configuration or protocol;

4. The method of claim 2, wherein the resources of the repeated transmissions comprise any one of:

continuous effective time domain resources;

The effective time domain resource is a time domain resource determined based on third information, wherein the third information comprises at least one of an uplink time slot or a non-downlink sub-band in the uplink time slot, a flexible time slot and an uplink sub-band in the downlink time slot;

Or alternatively

The effective time domain resource is a time domain resource that satisfies a first condition including at least one of not transmitting the first signal, not overlapping the first signal in the time domain, not overlapping the first signal in the frequency domain, and having a time domain interval with the first signal greater than or equal to a first threshold.

5. The method of claim 3 or 4, wherein the first signal comprises at least one of a terminal-specific physical uplink control channel, PUCCH, a terminal-specific physical uplink shared channel, PUSCH, a physical random access channel PRACH, msgA, msgAPRACH, magAPUSCH, msg, PUSCH for Msg4 or MsgB hybrid automatic repeat request, HARQ, feedback, msg5 PUSCH, a synchronization signal block, SSB, a channel state information reference signal, CSI-RS.

6. The method according to any one of claims 1 to 5, wherein the first information includes the retransmission related information, and wherein the terminal acquires the first information, including:

the terminal acquires the first information from the first message;

wherein the first message is any one of the following:

Scheduling downlink control information DCI or physical downlink control channel PDCCH of initial transmission of uplink data in a non-connection state;

A channel for downlink data transmission in a non-connected state;

Paging DCI or paging physical downlink shared channel PDSCH;

Paging messages;

a system message;

a radio resource control, RRC, release message.

7. The method of claim 2, wherein the relationship between the repeatedly transmitted beams comprises:

the wave beams used by the repeated transmission for all times are the same;

Or the beams used by at least some of the repeated transmissions are different.

8. The method according to claim 2 or 7, wherein the beam used for the retransmission is determined according to at least one of the number of terminals and the number of retransmission in a first paging message including a paging message associated with scheduling information for scheduling the uplink data transmission;

Or alternatively

The beam used for the repeated transmission is associated with a beam of a second signal, wherein the second signal comprises at least one of a paging PDCCH, a paging PDSCH, one or more downlink signals for repeated transmission of the paging PDCCH, one or more downlink signals for repeated transmission of the paging PDSCH, a CSI-RS, a synchronization signal, a broadcast signal, a positioning reference signal PRS and a sounding reference signal SRS.

9. The method of claim 1, wherein the retransmission related information comprises at least one of:

An indication of whether retransmission is allowed;

10. The method of claim 9, wherein the retransmitted resources comprise any one of:

A public transmission resource, wherein the public transmission resource is a public resource of transmission in a non-connection state predefined by a network configuration or protocol;

11. The method according to claim 1, 9 or 10, wherein the first information comprises the retransmission related information, and wherein the terminal obtains the first information, comprising:

The terminal acquires the first information from a second message, wherein the second message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

An RRC release message;

12. The method according to claim 1, 9, 10 or 11, wherein the first information includes the retransmission related information, and wherein the terminal performs the uplink data transmission according to the first information, including:

The terminal executes automatic retransmission or HARQ retransmission of the uplink data transmission in a non-connection state according to the first information;

Or alternatively

And the terminal executes automatic retransmission or HARQ retransmission of the uplink data transmission after entering a connection state according to the first information.

13. The method of claim 12, wherein the retransmission of the uplink data transmission is the automatic retransmission;

the terminal executes the automatic retransmission of the uplink data transmission, including any one of the following:

the terminal performs at least one automatic retransmission after a first time window;

The terminal performs at least one automatic retransmission in the first timer start;

And the terminal performs at least one automatic retransmission after a first moment, wherein the first moment is the sum of the time of initial transmission of the uplink data in a non-connection state and the time domain offset.

14. The method of claim 1, wherein the first information comprises the TA information;

The TA information is any one of the following:

Default TA value;

The TA value determined by the terminal according to fourth information, wherein the fourth information comprises at least one of position information of the terminal, tracking area information of the terminal and TA offset;

A TA value indicated by the network;

and the terminal transmits the TA value used in the last uplink.

15. The method of claim 14, wherein the network indicated TA value is determined based on at least one of first location information, first tracking area information, TA offset;

the first position information comprises any one of position information of the terminal, which is latest measured by an access network, and position information of the terminal, which is stored by the access network or a core network, and the first tracking area information comprises tracking area information of the terminal, which is stored by the access network or the core network.

16. The method of claim 14, wherein the TA offset is network indicated;

the indication mode of the TA value indicated by the network or the TA offset indicated by the network comprises any one of the following steps:

Indicated in a paging PDCCH, paging PDSCH, or other physical signal;

indication in a channel of downlink data transmission in a non-connected state;

17. The method of claim 14, wherein the TA offset is determined based on at least one of:

Duplex configuration information;

whether a land network or a non-land network;

whether the network coverage size is greater than a second threshold.

18. The method according to any one of claims 14 to 17, wherein the TA value used for the initial transmission of the uplink data in the non-connected state is a default TA value;

19. An uplink data transmission method, comprising:

the method comprises the steps that network side equipment sends first information to a terminal, wherein the first information is relevant configuration information of uplink data transmission in a non-connection state, and the first information is used for executing the uplink data transmission;

The first information comprises at least one of retransmission related information, retransmission related information and TA information.

20. The method of claim 19, wherein the first information comprises the retransmission related information, and wherein the network side device sends the first information to a terminal, comprising:

The network side equipment sends a first message to the terminal, wherein the first message comprises the first information;

wherein the first message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

RRC release message.

21. The method of claim 19, wherein the first information comprises the retransmission related information;

The network side device sends first information to a terminal, including:

the network side equipment sends a second message to the terminal, wherein the second message comprises the first information;

wherein the second message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

An RRC release message;

22. The uplink data transmission device is characterized by comprising an acquisition module and a transmission module;

the acquisition module is used for acquiring first information, wherein the first information is related configuration information of uplink data transmission in a non-connection state, and the first information comprises at least one of repeated transmission related information, retransmission related information and TA information;

The transmission module is configured to perform the uplink data transmission according to the first information acquired by the acquisition module.

23. The apparatus of claim 22, wherein the first information comprises the retransmission related information; the acquisition module is specifically configured to acquire the first information from a first message;

wherein the first message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

RRC release message.

24. The apparatus of claim 22, wherein the first information comprises the retransmission related information, and wherein the means for obtaining is configured to obtain the first information from a second message, the second message being any of:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

An RRC release message;

25. An uplink data transmission device is characterized by comprising a transmission module;

the sending module is configured to send first information to a terminal, where the first information is related configuration information of uplink data transmission in a non-connection state, and the first information is used to execute the uplink data transmission;

26. The apparatus of claim 25, wherein the first information comprises the retransmission related information, wherein the sending module is specifically configured to send a first message to the terminal, and wherein the first message comprises the first information;

wherein the first message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

RRC release message.

27. The apparatus of claim 25, wherein the first information comprises the retransmission related information;

The sending module is specifically configured to send a second message to the terminal, where the second message includes the first information;

wherein the second message is any one of the following:

A channel for downlink data transmission in a non-connected state;

paging DCI or paging PDSCH;

Paging messages;

a system message;

An RRC release message;

28. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the uplink data transmission method according to any one of claims 1 to 18.

29. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the uplink data transmission method of any one of claims 19 to 21.

30. A readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the uplink data transmission method according to any one of claims 1 to 18, or the steps of the uplink data transmission method according to any one of claims 19 to 21.