CN116963008A

CN116963008A - Side link sending method, side link sending device and terminal

Info

Publication number: CN116963008A
Application number: CN202210383135.5A
Authority: CN
Inventors: 杨聿铭; 纪子超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2023-10-27
Also published as: WO2023198102A1

Abstract

The application discloses a side link transmitting method, a side link transmitting device and a side link transmitting terminal, which belong to the technical field of wireless communication, and the side link transmitting method of the embodiment of the application comprises the following steps: the first terminal identifies resource conflict and executes a first action according to the resource conflict identification result; the resource conflict is the conflict between the first resource of the first terminal and the reserved resource of the second terminal; the first resource comprises a transmission block sending resource, a PSFCH sending resource and/or a PSFCH receiving resource corresponding to the transmission block sending resource.

Description

Side link sending method, side link sending device and terminal

Technical Field

The application belongs to the technical field of wireless communication, and particularly relates to a side link sending method, a side link sending device and a side link sending terminal.

Background

A long term evolution (Long Term Evolution, LTE) system supports sidelink (or sidelink, etc.) transmission, and is used for direct data transmission between end User equipments (UEs, also called terminals) without a network device. LTE sidelink is broadcast based and is not suitable for other higher level V2X services, although it may be used to support basic security class communications for internet of vehicles (vehicle to everything, V2X). The 5G New Radio (NR) system will support more advanced sidelink transmission designs, such as unicast, multicast or multicast, so that more comprehensive service types can be supported.

The communication of LTE sip has been generally divided into dedicated frequency bands, and the current NR sip UE cannot directly access to the frequency bands for communication due to the large difference between the design of LTE sip UE and NR sip UE. With more and more NR sip UEs and less LTE sip UEs, the frequency band divided for LTE sip UEs has a low utilization rate, so some methods need to be designed so that NR sip UEs can coexist with LTE sip UEs in these frequency bands.

Disclosure of Invention

The embodiment of the application provides a method, a device and a terminal for sending a side link, which can solve the problem of how to enable different side link terminals to coexist on the same frequency band.

In a first aspect, a sidelink transmission method is provided, including:

the first terminal identifies resource conflict and executes a first action according to the resource conflict identification result;

the resource conflict is the conflict between the first resource of the first terminal and the reserved resource of the second terminal;

the first resource comprises a transmission block sending resource, a PSFCH sending resource and/or a PSFCH receiving resource corresponding to the transmission block sending resource.

In a second aspect, there is provided a sidelink data transmission apparatus comprising:

The identification module is used for identifying resource conflict; the resource conflict is the conflict between the first resource of the first terminal and the reserved resource of the second terminal; the first resource comprises a transmission block sending resource, a PSFCH sending resource and/or a PSFCH receiving resource corresponding to the transmission block sending resource;

and the first execution module is used for executing the first action according to the resource conflict identification result.

In a third 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 sidelink transmission method as described in the first aspect above.

In a fourth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to identify a resource conflict, and execute a first action according to a result of identifying the resource conflict;

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

In a sixth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions to implement the method of the first aspect.

In a seventh aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to carry out the steps of the method according to the first aspect.

In the embodiment of the application, the resource conflict problem of different side link terminals can be solved, so that different side link terminals can coexist in the same frequency band.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

FIG. 2 is a flow diagram of resource allocation pattern 2 of the sidelink;

fig. 3 is a flow chart of a sidelink transmission method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a sidelink transmitting apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 6 is a schematic hardware structure of a terminal 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 in the description and in the claims, are used for distinguishing between similar elements 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, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

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), and 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 air interface (NR) system for purposes of example, and NR terminology is used in much of the description below, but these techniques are also Can be applied to applications other than NR system applications, such as generation 6 (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 (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. 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 comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a 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, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited.

The related communication vocabulary related to the present application will be briefly described below.

1. NR Sidelink resource allocation

NR V2X defines two resource allocation modes (modes), one is mode1, which schedules resources for the base station; the other is mode2, the UE itself decides what resources to use for transmission. The resource information may be a broadcast message from the base station or preconfigured information at this time. The UE may be mode1 and/or mode2 if operating within the range of the base station and having a radio resource control (Radio Resource Control, RRC) connection with the base station, and may only operate in mode2 if operating within the range of the base station but without an RRC connection with the base station. If the UE is out of range of the base station, then it can only operate in mode2 and V2X transmission is performed according to pre-configured information.

For mode2, the specific operation is as follows:

1) After the resource selection is triggered, the transmitting end (TX) UE first determines a resource selection window, where the lower boundary of the resource selection window is at T1 time after the triggering of the resource selection, and the upper boundary of the resource selection is at T2 time after the triggering, where T2 is a value selected by the UE implementation manner within a packet delay budget (packet delay budget, PDB) transmitted by a Transport Block (TB), and T2 is not earlier than T1.

2) Before the UE selects a resource, it needs to determine an alternative set of resources for the resource selection (candidate resource set), and the reference signal received power (Reference Signal Received Power, RSRP) of other UEs measured on the resources within the resource selection window is compared with a corresponding RSRP threshold (threshold), and if the RSRP is lower than the RSRP threshold, the resource can be included in the alternative set of resources.

3) After the resource set is determined, the UE randomly selects transmission resources among the candidate resource sets. In addition, the UE may reserve transmission resources for the next transmission at this time of transmission.

The specific flow may be refer to fig. 2.

2. Re-evaluation of NR SL resource selection

In the Mode 2 resource allocation Mode, a re-evaluation (re-evaluation) mechanism of resource selection is supported, which is briefly described below.

In order for the UE to determine whether the selected but unreserved resources (physical sidelink control channel (Physical Sidelink Control Channel, PSCCH) or physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) resources) are still not idle or in a low interference state, the UE performs a re-evaluation of the resource selection at least at the'm-T3' time, where the'm' time is the time when the reservation information of the resource is first transmitted, and T3 at least includes the duration of the resource selection process performed by the UE. The UE re-performs the step of resource selection at least at'm-T3' to obtain an alternative set of resources. If the resource selected by the UE is still in the alternative resource set, the UE does not need to perform resource reselection; otherwise, the UE selects a new transmission resource in the alternative set.

3. NR SL Resource preemption (Resource pre-project)

In the Mode 2 resource allocation Mode, a resource preemption (pre-transmission) mechanism is supported, which is briefly described below.

The resources that a UE has reserved overlap (partially overlap) with resources reserved or selected by other UEs with higher priority traffic, and the UE triggers a reselection of resources if the SL-RSRP measurement on the associated resource is greater than some associated SL-RSRP threshold.

In order to determine whether the reserved resource (PSCCH or PSSCH resource) is preempted, the UE performs preemption detection at least at the'm-T3' time, where the'm' time is the time at which the resource is located or the time at which the reservation information of the resource is transmitted, and T3 at least includes the duration of the resource selection process performed by the UE. The UE re-performs the step of resource selection at least at'm-T3' to obtain an alternative set of resources. If the resource selected by the UE is still in the alternative resource set, the UE does not need to perform resource reselection; otherwise, the UE selects a new transmission resource in the alternative set.

The method, the device and the terminal for transmitting the sidelink provided by the embodiment of the application are described in detail below through some embodiments and application scenes thereof with reference to the accompanying drawings.

Referring to fig. 3, an embodiment of the present application provides a sidelink transmitting method, which includes:

step 31: the first terminal identifies resource conflict and executes a first action according to the resource conflict identification result;

step 32: the resource conflict is the conflict between the first resource of the first terminal and the reserved resource of the second terminal; wherein the first resource comprises a transport block transmission resource, a physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH) transmission resource, and/or a PSFCH reception resource corresponding to the transport block transmission resource.

In the embodiment of the application, optionally, the first terminal may be an NR Sidelink terminal, and the second terminal may be an LTE Sidelink terminal, so that the NR Sidelink terminal may be directly connected to a dedicated frequency band of the LTE Sidelink for communication, thereby improving the frequency band utilization rate, and enabling the NR Sidelink terminal and the LTE Sidelink terminal to dynamically coexist. Of course, in other embodiments of the present application, the first terminal and the second terminal may also be the same type of terminal, for example, all NR sidelink terminals, or all LTE sidelink terminals, and may also be other different types of terminals.

Because the LTE sidelink terminal does not have the design of the PSFCH, the PSFCH sent by the NR sidelink terminal may be interfered by the data sent by the LTE sidelink terminal, so when resource collision is considered, the conflict between the sending resource of the PSFCH and the receiving resource of the PSFCH and the reserved resource of the second terminal may also need to be considered.

In an embodiment of the present application, optionally, the first action includes at least one of:

transmitting a transmission block;

performing PSFCH transmission;

the transmission of the transport block is not performed;

no PSFCH transmission is performed.

In the embodiment of the present application, optionally, before the first terminal sends the transport block and/or the PSFCH, the first terminal identifies the resource conflict, and executes the first action according to the identification result of the resource conflict, that is, when the first terminal selects the resource, the first terminal does not consider the reserved resource of the second terminal, before the transport block and/or the PSFCH is sent, identifies the resource conflict, and then determines whether to send the transport block and/or the PSFCH according to the identification result of the resource conflict, thereby changing the design architecture of the existing NR sidlink as little as possible, and achieving the purpose of minimum protocol modification.

In an embodiment of the present application, optionally, the identifying, by the first terminal, resource conflict further includes: the first terminal detects control information (Sidelink Control Information, SCI) sent by the second terminal and determines reserved resources of the second terminal based on the detected control information. The control information comprises information of reserved resources of the second terminal. In the existing standard, the design of PSCCH of the NR Sidelink terminal is different from that of the LTE Sidelink terminal, so that SCI cannot be received mutually, and resource reservation information cannot be identified between the two types of terminals, so that resource conflict cannot be avoided. Therefore, in the coexistence frequency band, at least control information supporting the NR Sidelink terminal to identify the LTE Sidelink terminal is needed, for example, when the NR Sidelink terminal detects, not only detection decoding is performed at the SCI position of the NR Sidelink but also detection decoding is performed at the possible SCI sending position of the LTE Sidelink, so that reserved resources of the NR Sidelink and the LTE Sidelink can be obtained simultaneously, and therefore, the reserved resources of the LTE Sidelink terminal can be avoided when the resources are selected and/or the preemption check is re-evaluated, so that the performance of the LTE Sidelink terminal is ensured.

In the embodiment of the present application, optionally, the RSRP value corresponding to the reserved resource of the second terminal is predefined by a protocol, preconfigured by a network, configured by a network, preconfigured by a terminal, or configured by a terminal. Therefore, the problem that the first terminal can not acquire the accurate RSRP value of the second terminal can be avoided. In the existing standard, the demodulation reference signal (Demodulation Reference Signal, DMRS) design of the NR sip terminal is different from that of the LTE sip terminal, and since the RSRP is acquired based on the DMRS, the RSRP value detected between the two types of terminals is inaccurate, and even the RSRP measurement value cannot be acquired. In this case, when the NR sip terminal detects the LTE sip terminal or the LTE sip terminal detects the reserved resource of the NR sip terminal, the corresponding RSRP value is replaced by a preset value, and the terminal performs resource selection according to the preset value.

In an embodiment of the present application, optionally, the sidelink sending method further includes: the reserved resources of the second terminal are selected from the candidate resource sets of the second terminal, and the candidate resource sets of the second terminal are determined according to the received signal strength indication (Received Signal Strength Indication, RSSI) sequences of the resources, so that the problem that the second terminal cannot acquire the RSRP value of the second terminal can be avoided, and the reserved resources of the second terminal can be selected directly according to the RSSI.

In an embodiment of the present application, optionally, the performing a first action according to the resource conflict identification result includes: and the first terminal executes a first action according to whether the resource conflict identification result meets a first condition.

In some embodiments of the present application, optionally, the first terminal performs a first action according to whether the resource conflict identification result meets a first condition, including at least one of the following:

if the resource conflict identification result meets the first condition, the first terminal does not send the transmission block and/or PSFCH;

and if the resource conflict identification result does not meet the first condition, the first terminal sends the transmission block and/or PSFCH.

In an embodiment of the present application, optionally, the first condition includes at least one of:

1) The reserved resource of the second terminal coincides with the first resource of the first terminal;

2) The priority of the reserved resources of the second terminal is greater than a first threshold; when the priority of the reserved resources of the second terminal is larger than the preset condition, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current transmission and the like, so that the transmission reliability of the second terminal is ensured. The priority of the reserved resource is the priority indicated in the control information of the detected reserved resource.

In an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the reserved resource of the second terminal is greater than a first threshold, namely, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, and if so, whether the priority of the reserved resource of the second terminal is greater than the first threshold is judged.

3) The priority of the transmission block is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than a first threshold; when the priority of the reserved resources of the second terminal is greater than the preset condition and the sending TB of the first terminal is smaller than the preset condition, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current sending, so that the TB with the higher priority of the first terminal is protected, the first terminal is allowed to avoid the second terminal, and the transmission reliability of the second terminal is guaranteed.

In an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, the priority of the transport block is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the first threshold, namely, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, and if so, whether the first resource of the first terminal meets the following conditions is judged: the priority of the transport block is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than a first threshold.

4) The priority of the PSFCH is smaller than a second threshold, and the priority of reserved resources of the second terminal is larger than a first threshold; when the priority of the reserved resources of the second terminal is greater than the preset condition and the priority of the PSFCH of the first terminal is smaller than the preset condition, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current transmission, so that the PSFCH with the higher priority of the first terminal is protected, the first terminal is allowed to avoid the second terminal, and the transmission reliability of the second terminal is guaranteed.

In an embodiment of the present application, optionally, the first condition includes: the priority of the reserved resource of the second terminal is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the first threshold, namely, whether the reserved resource of the second terminal is coincident with the first resource of the first terminal is judged first, if so, whether the reserved resource of the second terminal is coincident with the first resource of the first terminal is judged, and if so, whether the reserved resource of the second terminal meets the following conditions: the priority of the PSFCH is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than a first threshold.

5) The priority of the reserved resource of the second terminal is greater than the priority of the transmission block; when the priority of the reserved resources of the second terminal is larger than that of the first terminal for sending the TB, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current sending and the like, so that the transmission reliability of the second terminal is ensured.

In an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the reserved resource of the second terminal is greater than the priority of the transmission block, that is, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, if so, whether the priority of the reserved resource of the second terminal meets the following conditions is judged: the priority of the reserved resource of the second terminal is greater than the priority of the transport block.

6) The priority of the reserved resource of the second terminal is greater than the priority of the PSFCH; when the priority of the reserved resources of the second terminal is higher than that of the PSFCH sent by the first terminal, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current sending, so that the transmission reliability of the second terminal is ensured.

In an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the reserved resource of the second terminal is greater than the priority of the PSFCH, that is, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, if so, whether the priority of the reserved resource of the second terminal meets the following conditions is judged: the priority of the reserved resources of the second terminal is greater than the priority of the PSFCH.

7) The priority of the transmission block is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the transmission block; when the priority of the first terminal for sending the TB is smaller than the preset condition and smaller than the priority of reserved resources of the second terminal, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current sending, so that the transmission reliability of the second terminal is ensured, and the transmission with larger priority of the first terminal is ensured.

In an embodiment of the present application, optionally, the first condition includes: the priority of the reserved resource of the second terminal is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the transport block, namely, whether the reserved resource of the second terminal is overlapped with the first resource of the first terminal is judged first, and if so, whether the priority of the reserved resource of the second terminal is met is judged: the priority of the transport block is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the transport block.

8) The priority of the PSFCH is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the PSFCH; when the priority of PSFCH sending by the first terminal is smaller than the preset condition and smaller than the priority of reserved resources of the second terminal, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current sending, so that the transmission reliability of the second terminal is ensured, and the transmission with larger priority of the first terminal is ensured.

In an embodiment of the present application, optionally, the first condition includes: the priority of the reserved resource of the second terminal is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the PSFCH, that is, whether the reserved resource of the second terminal is coincident with the first resource of the first terminal is judged first, if so, whether the priority of the reserved resource of the second terminal is met is judged: the priority of the PSFCH is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the PSFCH.

9) The priority of the reserved resource of the second terminal is greater than a second threshold, and the priority of the reserved resource of the second terminal is greater than the priority of the transmission block; when the priority of the reserved resources of the second terminal is larger than the preset condition and is also larger than the priority of the transmission block of the first terminal, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current transmission, so that the transmission reliability of the second terminal is ensured and the transmission with larger priority of the first terminal is ensured.

In an embodiment of the present application, optionally, the first condition includes: the priority of the reserved resource of the second terminal is greater than a second threshold, and the priority of the reserved resource of the second terminal is greater than the priority of the transmission block, that is, whether the reserved resource of the second terminal is coincident with the first resource of the first terminal is judged first, if so, whether the first resource of the first terminal is coincident with the second resource of the second terminal is judged: the priority of the reserved resources of the second terminal is greater than a second threshold, and the priority of the reserved resources of the second terminal is greater than the priority of the transport block.

10 The priority of the reserved resources of the second terminal is greater than a second threshold, and the priority of the reserved resources of the second terminal is greater than the priority of the PSFCH; when the priority of the reserved resources of the second terminal is larger than the preset condition and is also larger than the priority of the PSFCH of the first terminal, the first terminal is allowed to avoid the reserved resources of the second terminal by canceling actions such as current transmission, so that the transmission reliability of the second terminal is ensured and the transmission with larger priority of the first terminal is ensured.

In an embodiment of the present application, optionally, the first condition includes: the priority of the reserved resource of the second terminal is greater than a second threshold, and the priority of the reserved resource of the second terminal is greater than the priority of the PSFCH, that is, whether the reserved resource of the second terminal is coincident with the first resource of the first terminal is judged first, if so, whether the priority of the reserved resource of the second terminal is met is judged: the priority of the reserved resources of the second terminal is greater than a second threshold, and the priority of the reserved resources of the second terminal is greater than the priority of the PSFCH. 11 The RSRP corresponding to the reserved resources of the second terminal is larger than a third threshold;

In an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the RSRP corresponding to the reserved resource of the second terminal is greater than a third threshold, that is, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, if so, whether the conditions are satisfied is judged: and RSRP corresponding to the reserved resources of the second terminal is larger than a third threshold.

12 The number of times of coincidence of the reserved resource of the second terminal and the first resource of the first terminal is smaller than a fourth threshold; when the number of the resource overlapping times is smaller than a preset value or the number of the resource conflict times is expressed as smaller than the preset value, the number of times that the first terminal avoids the reserved resource of the second terminal by canceling actions such as current transmission is correspondingly smaller than the preset value, so that the first terminal is allowed to avoid the reserved resource of the second terminal by canceling actions such as current transmission, and the transmission reliability of the second terminal is guaranteed.

Further optionally, the first condition includes: and within a preset period, the coincidence times of the reserved resources of the second terminal and the first resources of the first terminal are smaller than a fourth threshold. The preset period is a time window, N HARQ processes (processes), or N TB transport block transmissions, where N is a positive integer greater than or equal to 1. 13 The number or proportion of times of resource re-evaluation, resource preemption, resource re-selection or packet loss of the first terminal is continuously or jointly carried out is smaller than a fifth threshold. The number of times of resource re-evaluation, resource preemption, resource re-selection or packet loss of the first terminal due to resource conflict is directly counted, and if the number of times is smaller than a preset value, the first terminal is allowed to avoid reserved resources of the second terminal through actions such as resource re-selection or packet loss.

Further optionally, the first condition includes: and in a preset period, the number or proportion of times of continuously or jointly carrying out resource re-evaluation, resource preemption, resource reselection or packet loss by the first terminal is smaller than a fifth threshold. The preset period is a time window, N HARQ processes (processes), or N TB transport block transmissions, where N is a positive integer greater than or equal to 1.

In other embodiments of the present application, optionally, the first terminal performs a first action according to whether the resource conflict identification result meets a first condition, including at least one of the following:

if the resource conflict identification result meets the first condition, the first terminal sends the transmission block and/or PSFCH;

and if the resource conflict identification result does not meet the first condition, the first terminal does not send the transport block and/or PSFCH.

1) The reserved resource of the second terminal is not overlapped with the first resource of the first terminal; if the resources do not coincide, transmission of the transport block and or PSFCH may be normal.

2) The reserved resource of the second terminal coincides with the first resource of the first terminal;

3) The priority of the reserved resources of the second terminal is smaller than a first threshold;

in an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the reserved resource of the second terminal is smaller than a first threshold, namely, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, and if so, whether the first resource of the first terminal meets the following conditions is judged: and the priority of the reserved resources of the second terminal is smaller than a first threshold.

4) The priority of the transmission block is larger than a second threshold;

in an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the transmission block is greater than a second threshold, namely, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, and if so, whether the first resource of the second terminal meets the following conditions is judged: the priority of the transport block is greater than a second threshold.

5) The priority of the PSFCH is greater than a second threshold;

in an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the PSFCH is greater than a second threshold, namely, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, and if so, whether the priority of the PSFCH meets the following conditions: the priority of the PSFCH is greater than a second threshold.

6) The priority of the reserved resource of the second terminal is smaller than the priority of the transmission block;

in an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the reserved resource of the second terminal is smaller than the priority of the transport block, that is, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, if so, whether the priority of the reserved resource of the second terminal meets the following conditions is judged: the priority of the reserved resource of the second terminal is smaller than the priority of the transmission block.

7) The priority of the reserved resource of the second terminal is smaller than the priority of the PSFCH;

in an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the priority of the reserved resource of the second terminal is smaller than that of the PSFCH, namely, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, and if so, whether the priority of the reserved resource of the second terminal meets the following conditions is judged: the priority of the reserved resources of the second terminal is less than the priority of the PSFCH.

8) The RSRP corresponding to the reserved resources of the second terminal is smaller than a third threshold;

in an embodiment of the present application, optionally, the first condition includes: the reserved resource of the second terminal coincides with the first resource of the first terminal, and the RSRP corresponding to the reserved resource of the second terminal is smaller than a third threshold, that is, whether the reserved resource of the second terminal coincides with the first resource of the first terminal is judged first, if so, whether the first resource of the first terminal meets the following conditions: and RSRP corresponding to the reserved resources of the second terminal is smaller than a third threshold.

9) The overlapping times of the reserved resource of the second terminal and the first resource of the first terminal are larger than a fourth threshold;

further optionally, the first condition includes: and in a preset period, the coincidence times of the reserved resources of the second terminal and the first resources of the first terminal are larger than a fourth threshold. The preset period is a time window, N HARQ processes (processes), or N TB transport block transmissions, where N is a positive integer greater than or equal to 1.

10 The number or proportion of times of resource re-evaluation, resource preemption, resource re-selection or packet loss of the first terminal is continuously or jointly carried out is larger than a fifth threshold.

Further optionally, the first condition includes: and in a preset period, the first terminal continuously or jointly carries out resource re-evaluation, resource preemption, resource reselection or packet loss, and the frequency or the proportion of which are larger than a fifth threshold. The preset period is a time window, N HARQ processes (processes), or N TB transport block transmissions, where N is a positive integer greater than or equal to 1.

Further optionally, the first condition includes: and continuously or jointly carrying out the times or the proportion of resource re-evaluation, resource preemption, resource re-selection or packet loss on the first resource of the first terminal due to the conflict with the reserved resource of the second terminal is larger than a fifth threshold.

In the embodiment of the application, after the transmission of the transport block and/or the PSFCH is not performed for a plurality of times, in order to ensure the transmission performance, the transmission of the transport block and/or the PSFCH is normally performed without considering the reserved resources of the second terminal.

In the foregoing embodiments of the present application, optionally, at least one of the first threshold, the second threshold, the third threshold, the fourth threshold, and the fifth threshold is predefined by a protocol, configured by a network, configured by a terminal, or configured by a terminal.

In an embodiment of the present application, optionally, the identifying, by the first terminal, a resource conflict includes: the first terminal identifies resource conflict at a first moment, wherein the first moment is N time units before a first resource of the first terminal at the latest, and N is an integer.

In an embodiment of the present application, optionally, the sidelink sending method further includes: the first terminal identifying a resource conflict and executing a first action according to the resource conflict identification result further comprises:

and if the second terminal enables the Scaling (Scaling) of the size (Transport Block Size, TBS) of the transmission block, whether the reserved resource of the second terminal conflicts with the PSFCH resource and/or PSFCH resource corresponding to the transmission block is not detected, and the PSFCH is sent and/or received. That is, when the second terminal enables the scaling of the size of the transport block, the influence of the interference of the PSFCH transmitted by the first terminal on the data of the second terminal is reduced, so that in some scenarios, such as a scenario where the performance of the second terminal is preferentially guaranteed, the transmission and/or receiving resources of the PSFCH and the reserved resources of the second terminal may not be considered, and only the conflict of the transmission resources of the transport block and the reserved resources of the second terminal need to be considered.

In this embodiment of the present application, optionally, after the first terminal does not send the transport block and/or the PSFCH, the method further includes: the first terminal performs a second action, the second action comprising at least one of:

1) Waiting for a next reserved resource of the first terminal; i.e. not transmitting the current resource, buffering to the next retransmission resource selected by the first terminal and transmitting.

In the embodiment of the present application, optionally, the next reserved resource may be a next aperiodic reserved resource of the first terminal.

2) Triggering a resource reevaluation or preemption process;

3) Triggering resource reselection; namely, the first terminal triggers a resource reselection flow and selects other resources for transmission.

4) Discarding the transport block and/or PSFCH;

5) Reporting NACK to the MAC layer;

in the embodiment of the application, NACK is reported to the MAC layer, which is particularly important in the case of NACK-based group broadcasting (NACK-based).

6) Triggering the random selection of resources;

i.e. randomly selecting resources for transmission of transport blocks and/or PSFCHs.

7) And selecting resources in a second resource pool to transmit the transport blocks and/or PSFCH, wherein the reserved resources of the first resources and the second terminals are positioned in the first resource pool.

In the embodiment of the present application, optionally, the second resource pool may be a resource pool dedicated to performing the second action of the present application, or may be another resource pool different from the first resource pool.

In an embodiment of the present application, optionally, the sidelink sending method further includes: the first terminal performs a third action according to a second condition, the third action comprising: the first condition is adjusted. That is, the determination rule of the first condition is dynamically adjusted, so that the transmission of the first terminal can be further ensured.

In an embodiment of the present application, optionally, the second condition includes at least one of:

1) The overlapping times of the reserved resource of the second terminal and the first resource of the first terminal are larger than a fourth threshold;

further optionally, the second condition includes: in a preset period, the coincidence times of the reserved resource of the second terminal and the first resource of the first terminal are larger than a fourth threshold; the preset period is a time window, N HARQ processes (processes), or N TB transport block transmissions, where N is a positive integer greater than or equal to 1. Namely, when the number of resource conflict times is large, the judgment rule is dynamically adjusted, and the transmission reliability of the first terminal or the second terminal is preferentially ensured.

2) The reserved resources of the second terminal coincide with subsequent reserved resources of the first terminal and/or PSFCH resources corresponding to the subsequent reserved resources; when the subsequent reserved resources of the first terminal are also overlapped with the reserved resources of the second terminal, the first condition is timely adjusted, so that the first terminal is prevented from continuously reselecting resources, even losing packets and the like, and the transmission reliability of the first terminal can be ensured.

3) And continuously or jointly carrying out resource re-evaluation, resource preemption, resource reselection or packet loss by the first terminal, wherein the number or proportion of the times of the resource re-selection or packet loss is larger than a fifth threshold. Namely, when the first terminal adopts the number or the proportion of the resource re-evaluation, the resource preemption, the resource re-selection or the packet loss is more, the transmission reliability of the first terminal may be greatly affected, and the first condition needs to be adjusted to improve the transmission reliability of the first terminal.

Further optionally, the second condition includes: in a preset period, the first terminal continuously or jointly carries out resource re-evaluation, resource preemption, resource reselection or packet loss times or proportion of the times or proportions of the resource re-evaluation, the resource preemption and the resource reselection or the packet loss times or proportions of the resource re-selection or the packet loss times are larger than a fifth threshold; the preset period is a time window, N HARQ processes (processes), or N TB transport block transmissions, where N is a positive integer greater than or equal to 1.

In an embodiment of the present application, optionally, the adjusting the first condition includes: at least one of a first threshold, a second threshold, a third threshold, a fourth threshold, and a fifth threshold in the first condition is adjusted.

In an embodiment of the present application, optionally, the third action further includes at least one of the following:

1) Triggering resource reselection;

2) Discarding the transport block and/or PSFCH;

3) Triggering the random selection of resources;

4) And selecting resources in a second resource pool to transmit the transport blocks and/or PSFCH, wherein the reserved resources of the first resources and the second terminals are positioned in the first resource pool.

In an embodiment of the present application, optionally, the sidelink sending method further includes: and when the first terminal performs the Mth resource reselection, excluding the reserved resource of the second terminal when the candidate resource set for the side link transmission is determined, wherein M is an integer greater than or equal to 1. That is, after the first terminal performs the mth resource reselection, the first terminal does not follow the principle of independently performing resource selection before, but performs resource exclusion on the reserved resources of the second terminal meeting the exclusion condition in the resource selection process, so as to ensure own transmission.

The above-mentioned sidelink transmission method of the present application is described below with reference to a specific application scenario.

In the first embodiment of the application:

under the background that the LTE sidelink terminal cannot detect the reserved resources of the NR sidelink terminal, the NR sidelink terminal can avoid the reserved resources of the LTE sidelink terminal to ensure that the reserved resources of the two types of terminals are not in conflict to the greatest extent. If the existing resource allocation flow of the NR sidelink terminal is modified to achieve the purpose, the standard is more modified. Therefore, in the embodiment of the application, the NR sidelink terminal does not consider the reserved resource of the LTE sidelink terminal when selecting the resource, and recognizes the resource conflict according to the received reserved resource information of the LTE sidelink terminal before transmitting the transmission block and/or the PSFCH, if the resource conflict recognition result indicates that the resource does not conflict, the NR sidelink terminal normally transmits according to the selected resource, and if the resource conflict recognition result indicates that the resource conflicts, the transmission of the transmission block and/or the PSFCH is not performed.

The determination rule of the resource conflict (i.e. the first condition) may include whether the first resource of the NR sidelink terminal (including the transport block transmission resource, the PSFCH transmission resource, and/or the PSFCH reception resource corresponding to the transport block transmission resource) coincides with the reserved resource of the LTE sidelink terminal, and when the resources do not coincide, i.e. there is no resource conflict, the NR sidelink terminal may naturally perform transmission of the transport block and/or the PSFCH. When the resources are overlapped, when the transmission reliability of the LTE sidelink terminal is guaranteed preferentially, the NR sidelink terminal gives up the transmission or reselects the resources so as to avoid the interference on the data transmitted by the LTE sidelink terminal. In addition, conditions such as comparison of priorities can be added, so that the performance of the NR Sidelink terminal is also guaranteed to a certain extent, for example, when the priority of reserved resources of the LTE Sidelink terminal is higher than a preset threshold or the priority of transport blocks and/or PSFCHs of the NR Sidelink terminal is higher than the priority of transport blocks and/or PSFCHs of the NR Sidelink terminal, the NR Sidelink terminal gives up sending or reselecting resources. Alternatively, conditions may be added or replaced, for example, when the RSRP of the reserved resources of the LTE sidelink terminal is greater than a preset threshold, the NR sidelink terminal gives up to transmit or reselect the resources.

The second embodiment of the application:

when the number of transmission blocks of the LTE sidelink terminal is large, if the NR sidelink terminal satisfies the determination condition of resource conflict (i.e., the first condition described above), it cancels sending or reselects and selects resources, which may greatly affect its own transmission reliability or transmission delay. Therefore, there are some limitations required to ensure transmission of transport blocks and/or PSFCHs for NR sidelink terminals. For example, if the number of times that the first resource of the NR sidelink terminal (including the transport block transmission resource, the PSFCH transmission resource, and/or the PSFCH reception resource corresponding to the transport block transmission resource) collides with the reserved resource of the LTE sidelink terminal within a period of time, or the number of times that the first resource of the NR sidelink terminal cancels the transmission due to the collision with the reserved resource of the LTE sidelink terminal is greater than a preset threshold value, the NR sidelink terminal does not cancel its transmission due to meeting the determination condition of the resource collision any more, or adjusts the relevant threshold in the determination condition of the resource collision, so that the NR sidelink terminal is less likely to meet the determination condition of the resource collision to cancel its transmission.

The third embodiment of the application:

when the NR sidelink terminal cancels the transmission of the current transmission block and/or PSFCH, the NR sidelink terminal can directly wait for the transmission of the transmission block and/or PSFCH of the next aperiodic reserved resource of the NR sidelink terminal, can also perform resource reselection, reselect the resource to transmit the transmission block and/or PSFCH, and can even discard the transmission block and/or PSFCH. Similarly, when the NR sidelink terminal performs resource reselection for a plurality of times to avoid reserved resources of the LTE sidelink terminal, the reserved resources of the LTE sidelink terminal are considered in the next resource reselection, so that the possibility that the next transmission cannot be performed is reduced, and the transmission of the NR sidelink terminal is ensured.

The fourth embodiment of the application:

if TBS Scaling is enabled by the LTE sidelink terminal, i.e. compared to modification of the modulation and coding scheme (Modulation and coding scheme, MCS) by R14 and introduction of parameters of TBS Scaling, it can be used in case of decoding performance being affected due to puncturing of certain symbols. This technique can also be used to address the problem that PSSCH transmissions of LTE sidelink terminals are affected by PSFCH of NR sidelink terminals. Therefore, under the condition that TBS Scaling is enabled, the NR sidelink terminal is allowed to not detect whether the reserved resource of the second terminal collides with the PSFCH resource corresponding to the PSFCH resource and/or the transmission block, and the PSFCH is sent and/or received.

In the above embodiment, since the reserved resources of the LTE sidelink terminal are not considered when the NR sidelink terminal performs resource selection, the existing resource allocation mechanism does not need to be modified. The reserved resources of the LTE sidelink terminal are considered before the transmission of the transmission block and/or the PSFCH, so that the effect of avoiding the reserved resources of the LTE sidelink terminal can be achieved, and meanwhile, the transmission of the NR sidelink terminal can be guaranteed by dynamically adjusting the judgment criterion of the resource conflict.

According to the sidelink transmission method provided by the embodiment of the application, the execution body can be a sidelink transmission device. In the embodiment of the present application, a method for a sidelink transmitting apparatus to perform sidelink transmission is taken as an example, and the sidelink transmitting apparatus provided in the embodiment of the present application is described.

Referring to fig. 4, an embodiment of the present application further provides a sidelink sending apparatus 40, including:

an identification module 41 for identifying resource conflicts; the resource conflict is the conflict between the first resource of the first terminal and the reserved resource of the second terminal; the first resource comprises a transmission block sending resource, a PSFCH sending resource and/or a PSFCH receiving resource corresponding to the transmission block sending resource;

the first execution module 42 is configured to execute a first action according to the resource conflict identification result.

In an embodiment of the present application, optionally, the sidelink sending apparatus 40 further includes:

the detection module is used for detecting the control information sent by the second terminal;

and the determining module is used for determining reserved resources of the second terminal according to the detected control information.

transmitting a transmission block;

performing PSFCH transmission;

the transmission of the transport block is not performed;

no PSFCH transmission is performed.

In this embodiment of the present application, optionally, the first executing module 42 is configured to execute the first action according to whether the resource conflict identification result meets the first condition.

In the embodiment of the present application, optionally, the first execution module 42 is configured to not send the transport block and/or the PSFCH if the resource conflict identification result meets the first condition; and if the resource conflict identification result does not meet the first condition, transmitting the transport block and/or PSFCH.

the reserved resource of the second terminal coincides with the first resource of the first terminal;

the priority of the reserved resources of the second terminal is greater than a first threshold;

the priority of the transmission block is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than a first threshold;

the priority of the PSFCH is smaller than a second threshold, and the priority of reserved resources of the second terminal is larger than a first threshold;

The priority of the reserved resource of the second terminal is greater than the priority of the transmission block;

the priority of the reserved resource of the second terminal is greater than the priority of the PSFCH;

the priority of the transmission block is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the transmission block;

the priority of the PSFCH is smaller than a second threshold, and the priority of the reserved resource of the second terminal is larger than the priority of the PSFCH;

the priority of the reserved resource of the second terminal is greater than a second threshold, and the priority of the reserved resource of the second terminal is greater than the priority of the transmission block;

the priority of the reserved resources of the second terminal is greater than a second threshold, and the priority of the reserved resources of the second terminal is greater than the priority of the PSFCH;

the RSRP corresponding to the reserved resources of the second terminal is larger than a third threshold;

the number of coincidence times of the reserved resource of the second terminal and the first resource of the first terminal is smaller than a fourth threshold;

and continuously or jointly carrying out resource re-evaluation, resource preemption, resource reselection or packet loss by the first terminal, wherein the number or proportion of the resource re-selection or packet loss is smaller than a fifth threshold.

In the embodiment of the present application, optionally, the first execution module 42 is configured to send the transport block and/or the PSFCH if the resource conflict identification result meets the first condition; and if the resource conflict identification result does not meet the first condition, not transmitting the transport block and/or PSFCH.

the reserved resource of the second terminal is not overlapped with the first resource of the first terminal;

the priority of the reserved resources of the second terminal is smaller than a first threshold;

the priority of the transmission block is larger than a second threshold;

the priority of the PSFCH is greater than a second threshold;

the priority of the reserved resource of the second terminal is smaller than the priority of the transmission block;

the priority of the reserved resource of the second terminal is smaller than the priority of the PSFCH;

the RSRP corresponding to the reserved resources of the second terminal is smaller than a third threshold;

the overlapping times of the reserved resource of the second terminal and the first resource of the first terminal are larger than a fourth threshold;

and continuously or jointly carrying out resource re-evaluation, resource preemption, resource reselection or packet loss by the first terminal, wherein the number or proportion of the times of the resource re-selection or packet loss is larger than a fifth threshold.

In the embodiment of the present application, optionally, at least one of the first threshold, the second threshold, the third threshold, the fourth threshold and the fifth threshold is predefined by a protocol, preconfigured by a network, configured by a network, preconfigured by a terminal or configured by a terminal.

In an embodiment of the present application, optionally, the second execution module is configured to execute a second action after the transmission of the transport block and/or the PSFCH is not performed, where the second action includes at least one of the following:

waiting for a next reserved resource of the first terminal;

triggering a resource reevaluation or preemption process;

triggering resource reselection;

discarding the transport block and/or PSFCH;

reporting NACK to the MAC layer;

triggering the random selection of resources;

and selecting resources in a second resource pool to transmit the transport blocks and/or PSFCH, wherein the reserved resources of the first resources and the second terminals are positioned in the first resource pool.

In this embodiment of the present application, optionally, the identifying module 41 is configured to identify a resource conflict at a first moment, where the first moment is N time units before the first resource of the first terminal at the latest, and N is an integer.

a third execution module for executing a third action according to the second condition, the third action comprising: the first condition is adjusted.

the reserved resources of the second terminal coincide with subsequent reserved resources of the first terminal and/or PSFCH resources corresponding to the subsequent reserved resources;

triggering resource reselection;

discarding the transport block and/or PSFCH;

triggering the random selection of resources;

and the retransmission module is used for excluding the reserved resources of the second terminal when the first terminal performs the M-th resource reselection and determines the candidate resource set for the side link transmission, wherein M is an integer greater than or equal to 1.

In the embodiment of the present application, optionally, the RSRP value corresponding to the detected reserved resource of the second terminal is predefined by a protocol, preconfigured by a network, configured by a network, preconfigured by a terminal, or configured by a terminal.

In this embodiment of the present application, optionally, the reserved resources of the second terminal are selected from a candidate resource set of the second terminal, where the candidate resource set of the second terminal is determined according to the RSSI ordering of the resources.

In this embodiment of the present application, optionally, the first execution module 42 is further configured to, if the second terminal enables the scaling of the transport block size, not detect whether the reserved resource of the second terminal collides with the PSFCH resource and/or the PSFCH resource corresponding to the transport block, and perform transmission and/or reception of the PSFCH.

The sidelink transmitting apparatus in the embodiment of the present 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, 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 application are not specifically limited.

The sidelink transmitting device provided by the embodiment of the present application can realize each process implemented by the method embodiment of fig. 3 and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Optionally, as shown in fig. 5, the embodiment of the present application further provides a terminal 50, which includes a processor 51 and a memory 52, where the memory 52 stores a program or an instruction that can be executed on the processor 51, and the program or the instruction implements each step of the above-mentioned sidelink transmission method embodiment when executed by the processor 51, and can achieve the same technical effect, 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 processor is used for identifying resource conflict; the resource conflict is the conflict between the first resource of the first terminal and the reserved resource of the second terminal; the first resource comprises a transmission block sending resource, a PSFCH sending resource and/or a PSFCH receiving resource corresponding to the transmission block sending resource; and executing the first action according to the resource conflict identification result. 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. 6 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 60 includes, but is not limited to: at least some of the components of the radio frequency unit 61, the network module 62, the audio output unit 63, the input unit 64, the sensor 65, the display unit 66, the user input unit 67, the interface unit 68, the memory 69, and the processor 610, etc.

Those skilled in the art will appreciate that the terminal 60 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 610 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 6 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain 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 64 may include a graphics processing unit (Graphics Processing Unit, GPU) 641 and a microphone 642, with the graphics processor 641 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 66 may include a display panel 661, and the display panel 661 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 67 includes at least one of a touch panel 671 and other input devices 672. The touch panel 671 is also referred to as a touch screen. The touch panel 671 may include two parts, a touch detection device and a touch controller. Other input devices 672 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, 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 61 may transmit the downlink data to the processor 610 for processing; in addition, the radio frequency unit 61 may send uplink data to the network side device. Typically, the radio frequency unit 61 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 69 may be used to store software programs or instructions as well as various data. The memory 69 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 69 may include volatile memory or nonvolatile memory, or the memory 69 may include both volatile and 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 RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 69 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., 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 610.

Wherein the processor 610 is configured to identify a resource conflict; the resource conflict is the conflict between the first resource of the first terminal and the reserved resource of the second terminal; the first resource comprises a transmission block sending resource, a PSFCH sending resource and/or a PSFCH receiving resource corresponding to the transmission block sending resource; and executing the first action according to the resource conflict identification result.

In this embodiment of the present application, optionally, the processor 610 is configured to detect control information sent by the second terminal; and determining reserved resources of the second terminal according to the detected control information.

transmitting a transmission block;

performing PSFCH transmission;

the transmission of the transport block is not performed;

no PSFCH transmission is performed.

In this embodiment of the present application, optionally, the processor 610 is configured to execute the first action according to whether the result of the resource conflict identification meets a first condition.

In this embodiment of the present application, optionally, the processor 610 is configured to not send the transport block and/or the PSFCH if the result of identifying the resource conflict meets the first condition; and if the resource conflict identification result does not meet the first condition, transmitting the transport block and/or PSFCH.

In this embodiment of the present application, optionally, the processor 610 is configured to send the transport block and/or the PSFCH if the result of identifying the resource conflict meets the first condition; and if the resource conflict identification result does not meet the first condition, not transmitting the transport block and/or PSFCH.

the priority of the transmission block is larger than a second threshold;

the priority of the PSFCH is greater than a second threshold;

waiting for a next reserved resource of the first terminal;

triggering a resource reevaluation or preemption process;

triggering resource reselection;

discarding the transport block and/or PSFCH;

reporting NACK to the MAC layer;

triggering the random selection of resources;

In this embodiment of the present application, optionally, the processor 610 is configured to identify a resource conflict at a first time, where the first time is N time units before the first resource of the first terminal at the latest, and N is an integer.

In an embodiment of the present application, optionally, the processor 610 is configured to perform a third action according to the second condition, where the third action includes: the first condition is adjusted.

triggering resource reselection;

discarding the transport block and/or PSFCH;

triggering the random selection of resources;

In this embodiment of the present application, optionally, the processor 610 is configured to exclude reserved resources of the second terminal when the first terminal performs the mth resource reselection and determines the candidate resource set for the sidelink transmission, where M is an integer greater than or equal to 1.

In this embodiment of the present application, optionally, the processor 610 is configured to, if the second terminal enables the scaling of the size of the transport block, not detect whether the reserved resource of the second terminal collides with the PSFCH resource and/or the PSFCH resource corresponding to the transport block, and perform transmission and/or reception of the PSFCH.

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 above-mentioned sidelink transmission method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

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.

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 above-mentioned side link transmission method embodiment, and can achieve the same technical effects, 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 the respective processes of the above-mentioned sidelink transmission method embodiment, and achieve the same technical effects, and are not repeated herein.

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 above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method 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 may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method of sidelink transmission, comprising:

2. The method of claim 1, wherein the first terminal identifying a resource conflict further comprises:

the first terminal detects control information sent by the second terminal and determines reserved resources of the second terminal according to the detected control information.

3. The method of claim 1, wherein the first action comprises at least one of:

transmitting a transmission block;

performing PSFCH transmission;

the transmission of the transport block is not performed;

no PSFCH transmission is performed.

4. The method of claim 1, wherein the performing a first action based on the resource conflict identification result comprises:

and the first terminal executes a first action according to whether the resource conflict identification result meets a first condition.

5. The method of claim 4, wherein the first terminal performs the first action based on whether the resource conflict identification result satisfies a first condition, comprising at least one of:

6. The method of claim 5, wherein the first condition comprises at least one of:

7. The method of claim 4, wherein the first terminal performs the first action based on whether the resource conflict identification result satisfies a first condition, comprising at least one of:

8. The method of claim 7, wherein the first condition comprises at least one of:

the priority of the transmission block is larger than a second threshold;

the priority of the PSFCH is greater than a second threshold;

9. The method according to claim 6 or 8, wherein at least one of the first, second, third, fourth and fifth thresholds is predefined by a protocol, network preconfigured, network configured, terminal preconfigured or terminal configured.

10. The method according to claim 5 or 7, wherein after the first terminal does not transmit the transport block and/or PSFCH, further comprising:

the first terminal performs a second action, the second action comprising at least one of:

waiting for a next reserved resource of the first terminal;

triggering a resource reevaluation or preemption process;

triggering resource reselection;

discarding the transport block and/or PSFCH;

reporting NACK to the MAC layer;

triggering the random selection of resources;

11. The method of claim 1, wherein the first terminal identifying a resource conflict comprises:

the first terminal identifies resource conflict at a first moment, wherein the first moment is N time units before a first resource of the first terminal at the latest, and N is an integer.

12. The method according to claim 5 or 7, further comprising:

the first terminal performs a third action according to a second condition, the third action comprising: the first condition is adjusted.

13. The method of claim 12, wherein the second condition comprises at least one of:

14. The method of claim 12, wherein said adjusting said first condition comprises: at least one of a first threshold, a second threshold, a third threshold, a fourth threshold, and a fifth threshold in the first condition is adjusted.

15. The method of claim 12, wherein the third action further comprises at least one of:

triggering resource reselection;

Discarding the transport block and/or PSFCH;

triggering the random selection of resources;

16. The method as recited in claim 10, further comprising:

and when the first terminal performs the Mth resource reselection, excluding the reserved resource of the second terminal when the candidate resource set for the side link transmission is determined, wherein M is an integer greater than or equal to 1.

17. The method according to claim 1 or 2, wherein the RSRP value corresponding to the reserved resources of the second terminal is predefined by a protocol, network preconfigured, network configured, terminal preconfigured or terminal configured.

18. A method according to claim 1 or 2, characterized in that the reserved resources of the second terminal are selected from a set of candidate resources of the second terminal, which is determined according to the RSSI ordering of the resources.

19. The method of claim 1, wherein the first terminal identifying a resource conflict and performing a first action based on the resource conflict identification result further comprises:

And if the second terminal enables the size scaling of the transmission block, the first terminal does not detect whether the reserved resource of the second terminal collides with the PSFCH resource corresponding to the PSFCH resource and/or the transmission block, and sends and/or receives the PSFCH.

20. A sidelink data transmission apparatus, comprising:

21. 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 sidelink transmission method of any of claims 1 to 19.

22. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the sidelink transmission method of any of claims 1 to 19.