Setting methods, terminal equipment and network equipment

Abstract

The embodiment of the present application relates to a setting method, a terminal device and a network device, wherein the method includes, when a first terminal device sends sidelink data, setting the priority in the sidelink control information SCI for scheduling the sidelink data to a first priority. The embodiment of the present application can prevent a terminal without listening capability from interfering with the transmission of a high-priority terminal with listening capability.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a setting method, a terminal device and a network device. Background Art

[0002] Device-to-device communication is a sidelink (SL) transmission technology based on the terminal-to-terminal (D2D) technology. It is different from the way in which communication data is received or sent by base stations in traditional cellular systems, and has higher spectrum efficiency and lower transmission latency. The Internet of Vehicles system adopts terminal-to-terminal direct communication. The 3rd Generation Partnership Project (3GPP) defines two transmission modes: the first mode and the second mode. In the second mode, the terminal can select a resource from a pre-configured or network-configured resource pool for sidelink transmission of data. After the terminal selects the transmission resource, if data is sent directly on these resources, it is possible that two terminals have selected the same transmission resource and a resource conflict occurs. To solve this problem, a resource preemption and re-evaluation mechanism is introduced in the New Radio-Vehicle to Everything (NR-V2X), so that the terminal can determine whether there is a resource conflict with other terminals before using the selected resources. If there is no conflict, the selected transmission resources can continue to be used. If there is a resource conflict, it is necessary to avoid and reselect resources according to the corresponding mechanism to avoid resource conflicts.

[0003] In order to reduce energy consumption, some terminals do not have the ability to receive side data, that is, they do not have the ability to listen. When a resource pool supports both random selection and listening, the terminal without listening capability randomly selects resources, and then does not perform re-evaluation or pre-emption detection, but directly uses the selected resources for side transmission; after the terminal with listening capability selects the transmission resource, before using the resource for side transmission, it needs to perform re-evaluation or pre-emption detection to determine whether there is a resource conflict with other terminals. For example, for pre-emption detection, when a terminal with listening capability detects that a resource conflict occurs, and the priority of the terminal is lower than that of the terminal with conflict, and the reference signal received power (RSRP, Reference Signal Received Power) of other terminals is detected to be higher than the threshold, the terminal will reselect resources to avoid conflicts with other terminals; if the priority of the terminal is higher than that of the terminal with conflict, the terminal will not reselect resources, but expects the terminal with conflict to reselect resources, that is, the terminal with high priority can use the conflicting resources first. However, if the other conflicting terminals are terminals without listening capabilities, no pre-emption detection will be performed and no resource reselection will be performed. As a result, low-priority terminals can avoid resource conflicts with terminals without listening capabilities, but high-priority terminals cannot avoid resource conflicts with terminals without listening capabilities, that is, terminals without listening capabilities will conflict with high-priority data transmission resources with listening capabilities, thereby affecting the performance of high-priority data transmission. Summary of the invention

[0004] The embodiments of the present application provide a setting method, a terminal device and a network device.

[0005] The present application provides a setting method, including:

[0006] When sending the sidelink data, the first terminal device sets the priority in the sidelink control information SCI for scheduling the sidelink data to the first priority.

[0007] The present application also provides a setting method, including:

[0008] When the second terminal device performs resource selection, resource reselection, re-evaluation detection or resource pre-emption detection, it determines the reference signal received power RSRP threshold corresponding to the first terminal device according to the first configuration parameter; wherein the first terminal device includes a terminal device without listening capability.

[0009] The present application also provides a sidelink data transmission method, including:

[0010] The terminal device obtains resource pool configuration information, and determines, based on the first priority threshold, to transmit side data in the resource pool whose transmission priority is not higher than the priority corresponding to the first priority threshold.

[0011] The present application also provides a sidelink data transmission method, including:

[0012] When the channel occupancy rate CBR is lower than the first threshold, when the second terminal device detects a resource conflict with the first terminal device, the second terminal device reselects resources; wherein the first terminal device includes a terminal device without a listening capability.

[0013] The present application also provides a configuration method, including:

[0014] The network device sends configuration information to the second terminal device, where the configuration information is used to determine a first configuration parameter, where the first configuration parameter is used by the second terminal device to determine an RSRP threshold corresponding to the first terminal device when performing resource selection, resource reselection, re-evaluation detection, or pre-emption detection; wherein,

[0015] The first terminal device includes a terminal device without a listening capability;

[0016] The second terminal device includes a terminal device with a listening capability.

[0017] The present application also provides a configuration method, including:

[0018] The network device sends resource pool configuration information to the terminal device, where the resource pool configuration information is used to instruct the terminal device to determine, based on the first priority threshold, to transmit sidelink data in the resource pool whose transmission priority is not higher than that corresponding to the first priority threshold.

[0019] The present application also provides a configuration method, including:

[0020] The network device sends configuration information to the second terminal device, where the configuration information is used to instruct the second terminal device to reselect resources if a resource conflict is detected with the first terminal device when the CBR is lower than the first threshold; wherein,

[0021] The first terminal device includes a terminal device without a listening capability;

[0022] The second terminal device includes a terminal device with a listening capability.

[0023] The embodiment of the present application further provides a first terminal device, including:

[0024] The priority setting module is used to set the priority in the SCI for scheduling the sideline data to the first priority when the first terminal device sends the sideline data.

[0025] The embodiment of the present application further provides a second terminal device, including:

[0026] The first determination module is used to determine the reference signal received power RSRP threshold corresponding to the first terminal device according to the first configuration parameter when the second terminal device performs resource selection, resource reselection, re-evaluation detection or resource preemption detection; wherein the first terminal device includes a terminal device without listening capability.

[0027] The present application also provides a terminal device, including:

[0028] The transmission module is used to obtain resource pool configuration information and determine, based on the first priority threshold, the side data whose transmission priority in the resource pool is not higher than the priority corresponding to the first priority threshold.

[0029] The embodiment of the present application further provides a second terminal device, including:

[0030] The resource reselection module is used to control the second terminal device to reselect resources when the second terminal device detects a resource conflict with the first terminal device when the channel occupancy rate CBR is lower than the first threshold; wherein the first terminal device includes a terminal device without listening capability.

[0031] The embodiment of the present application also provides a network device, including:

[0032] The first sending module is used to send configuration information to the second terminal device, the configuration information is used to determine the first configuration parameter, and the first configuration parameter is used by the second terminal device to determine the RSRP threshold corresponding to the first terminal device when performing resource selection, resource reselection, re-evaluation detection or pre-emption detection; wherein,

[0033] The first terminal device includes a terminal device without a listening capability;

[0034] The second terminal device includes a terminal device with a listening capability.

[0035] The embodiment of the present application also provides a network device, including:

[0036] The second sending module is used to send resource pool configuration information to the terminal device, where the resource pool configuration information is used to instruct the terminal device to determine, based on the first priority threshold, the sidelink data whose transmission priority in the resource pool is not higher than the priority corresponding to the first priority threshold.

[0037] The embodiment of the present application also provides a network device, including:

[0038] The third sending module is used to send configuration information to the second terminal device, where the configuration information is used to instruct the second terminal device to reselect resources if a resource conflict with the first terminal device is detected when the CBR is lower than the first threshold; wherein,

[0039] The first terminal device includes a terminal device without a listening capability;

[0040] The second terminal device includes a terminal device with a listening capability.

[0041] An embodiment of the present application also provides a terminal device, including: a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method described above.

[0042] An embodiment of the present application further provides a network device, including: a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method described above.

[0043] An embodiment of the present application also provides a chip, including: a processor, used to call and run a computer program from a memory, so that a device equipped with the chip executes the method described above.

[0044] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute the method as described above.

[0045] An embodiment of the present application also provides a computer program product, including computer program instructions, which enable a computer to execute the method as described above.

[0046] The embodiment of the present application also provides a computer program, which enables a computer to execute the method as described above.

[0047] In an embodiment of the present application, when the first terminal device sends side data, it sets the priority of the SCI terminal that schedules the side data to a specific first priority, so that terminals with listening capabilities of all priority levels do or do not reselect resources, thereby avoiding terminals without listening capabilities only interfering with the transmission of high-priority terminals with listening capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1A This is a schematic diagram of the inner line communication of the network coverage;

[0049] Figure 1BIt is a schematic diagram of sideline communication with partial network coverage;

[0050] Figure 1C It is a schematic diagram of the communication outside the network coverage;

[0051] Figure 2 It is a schematic diagram of the way in which the terminal selects resources in the selection window;

[0052] Figure 3 It is a schematic diagram of the Re-evaluation mechanism;

[0053] Figure 4 It is a schematic diagram of the Pre-emption mechanism;

[0054] Figure 5 is a schematic flow chart of a setting method 500 according to an embodiment of the present application;

[0055] Figure 6 is a schematic flow chart of a setting method 600 according to an embodiment of the present application;

[0056] Figure 7 is a schematic flow chart of a sidelink data transmission method 700 according to an embodiment of the present application;

[0057] Figure 8 is a schematic flow chart of a sidelink data transmission method 800 according to an embodiment of the present application;

[0058] Fig. 9 is a schematic flow chart of a configuration method 900 according to an embodiment of the present application;

[0059] Fig.10 is a schematic flow chart of a configuration method 1000 according to an embodiment of the present application;

[0060] Fig.11 is a schematic flow chart of a configuration method 1100 according to an embodiment of the present application;

[0061] Fig.12 is a schematic diagram of the structure of a first terminal device 1200 according to an embodiment of the present application;

[0062] Fig.13 is a schematic diagram of the structure of a second terminal device 1300 according to an embodiment of the present application;

[0063] Fig.14 is a schematic structural diagram of another second terminal device 1400 according to an embodiment of the present application;

[0064] Fig.15 is a schematic diagram of the structure of a terminal device 1500 according to an embodiment of the present application;

[0065] Fig.16 is a schematic diagram of the structure of a second terminal device 1600 according to an embodiment of the present application;

[0066] Fig.17 is a schematic diagram of the structure of a second terminal device 1700 according to an embodiment of the present application;

[0067] Fig.18 is a schematic diagram of the structure of a network device 1800 according to an embodiment of the present application;

[0068] Fig.19 is a schematic diagram of the structure of a network device 1900 according to an embodiment of the present application;

[0069] Fig. 20 is a schematic diagram of the structure of a network device 2000 according to an embodiment of the present application;

[0070] Fig.21 is a schematic structural diagram of a communication device 2100 according to an embodiment of the present application;

[0071] Fig. 22 is a schematic structural diagram of a chip 2200 according to an embodiment of the present application. DETAILED DESCRIPTION

[0072] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0073] It should be noted that the terms "first", "second", etc. in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The objects described by the "first" and "second" described at the same time may be the same or different.

[0074] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system or other communication systems.

[0075] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and vehicle to vehicle (Vehicle to Vehicle, V2V) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0076] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0077] The embodiments of the present application do not limit the spectrum to which they are applied. For example, the embodiments of the present application can be applied to licensed spectrum or unlicensed spectrum.

[0078] The embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein: the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc. The terminal device may be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in an NR network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0079] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0080] The network device can be a device used to communicate with a mobile device. The network device can be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, etc.

[0081] In an embodiment of the present application, a network device provides services for a cell, and a terminal device communicates with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: a metro cell, a micro cell, a picocell, a femtocell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0082] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0083] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0084] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0085] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application.

[0086] In sideline communication, according to the network coverage of the communicating terminal, it can be divided into sideline communication inside the network coverage, sideline communication with partial network coverage, and sideline communication outside the network coverage, as shown below: Figure 1A , Figure 1B and Figure 1C shown.

[0087] like Figure 1A As shown, in the sideline communication within the network coverage, all terminals performing sideline communication are within the coverage of the same base station, and these terminals can perform sideline communication based on the same sideline configuration by receiving the configuration signaling of the base station.

[0088] like Figure 1B As shown, in the case of partial network coverage of sidelink communication, some terminals performing sidelink communication are located within the coverage of the base station. These terminals can receive the configuration signaling of the base station and perform sidelink communication according to the configuration of the base station. However, the terminals outside the network coverage cannot receive the configuration signaling of the base station. In this case, the terminals outside the network coverage will determine the sidelink configuration according to the pre-configuration information and the information carried in the Physical Sidelink Broadcast Channel (PSBCH) sent by the terminals within the network coverage, and perform sidelink communication.

[0089] like Figure 1C As shown, for sideline communications outside the network coverage, all terminals performing sideline communications are located outside the network coverage, and all terminals determine the sideline configuration according to the pre-configuration information to perform sideline communications.

[0090] Device-to-device communication is a sidelink transmission technology based on D2D. It is different from the traditional cellular system where communication data is received or sent by base stations, so it has higher spectrum efficiency and lower transmission latency. The Internet of Vehicles system adopts terminal-to-terminal direct communication, and 3GPP defines two transmission modes: mode 1 and mode 2.

[0091] The first mode: The transmission resources of the terminal are allocated by the base station, and the terminal sends data on the sidelink according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the terminal, or allocate resources for semi-static transmission to the terminal. Figure 1AIn the present invention, the terminal is located within the coverage of the network, and the network allocates transmission resources for the terminal to use for side transmission.

[0092] The second mode: The terminal selects a resource in the resource pool to transmit data. Figure 1C In the case where the terminal is outside the coverage of the cell, the terminal autonomously selects transmission resources from the pre-configured resource pool for side transmission; or Figure 1A In the process, the terminal autonomously selects transmission resources from the resource pool configured by the network for side transmission.

[0093] In NR-V2X, autonomous driving needs to be supported, which puts higher requirements on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, more flexible resource allocation, etc.

[0094] When the NR-V2X terminal operates in the second mode mentioned above (i.e., mode 2 in NR-V2X), the terminal selects resources based on listening. Specifically, when a new data packet arrives in time slot n and resource selection is required, the terminal selects resources within the resource selection window based on the listening results over the past period of time. Figure 2 This is a schematic diagram of how the terminal selects resources in the selection window. Figure 2 In the example shown, the resource listening window (referred to as listening window) determined by the terminal is [n-1000, n-1), and the resource selection window (referred to as selection window) is [n+1, n+100].

[0095] The brief process of the terminal selecting resources in the selection window is as follows:

[0096] 1. The terminal selects all available resources in the window as a set A.

[0097] 2. If the terminal has no listening results for some subframes in the listening window, the resources of the subframes corresponding to these subframes in the selection window are excluded;

[0098] 3. If a physical sidelink control channel (PSCCH) is detected in the terminal listening window, the RSRP of the PSCCH or the RSRP of the physical sidelink shared channel (PSSCH) scheduled by the PSCCH is measured. If the measured RSRP is higher than the RSRP threshold, and the reserved transmission resources determined according to the reserved information in the control information conflict with the data to be sent by the user, the user excludes the resources from set A. The selection of the RSRP threshold is determined by the priority information carried in the detected PSCCH and the priority of the terminal data to be transmitted.

[0099] 4. If the number of remaining resources in set A is less than X% of the total number of resources, the terminal will increase the RSRP threshold by 3dB and repeat the above steps until the number of remaining resources in set A is greater than X% of the total number of resources, where X is a high-level configuration parameter.

[0100] 5. The terminal reports set A to the upper layer.

[0101] The higher layer randomly selects N transmission resources for sidelink transmission based on the available resource set reported by the physical layer.

[0102] After the terminal selects the transmission resources, there is a possibility of resource conflict due to two terminals selecting the same transmission resources. In order to solve this problem, the pre-emption and re-evaluation mechanisms are introduced in NR-V2X, so that the terminal can determine whether there is a resource conflict with other terminals before using the selected resources. If there is no conflict, the selected transmission resources can continue to be used. If there is a resource conflict, it is necessary to avoid and reselect resources according to the corresponding mechanism to avoid resource conflicts.

[0103] In the re-evaluation mechanism, the terminal continues to monitor the side control information after completing the resource selection, and re-evaluates the selected but not indicated resources at least once. Figure 3 is a schematic diagram of the re-evaluation mechanism. Figure 3 As shown, resources w, x, y, z, and v are the time-frequency resources that the UE has selected at time n, and resource x is located in time slot m. For resources y and z that the UE is about to send side control information for the first time in resource x (resource x has been previously indicated by the side control information in resource w). The UE performs resource listening at least once in time slot m-T3, that is, determines the resource selection window and the listening window, and excludes the resources in the resource selection window to obtain a candidate resource set. If resource y or z is not in the candidate resource set, the UE reselects the time-frequency resources in resources y and z that are not in the candidate resource set, and may also reselect any resources that have been selected but not indicated by sending side control information, such as any several resources in resources y, z, and v. The above m-T3 depends on the processing capability of the terminal.

[0104] In NR-V2X, the conclusions about the pre-emption mechanism are all described from the perspective of the preempted UE. After completing resource selection, the UE continues to listen to the side control information. If the time-frequency resources that have been selected and indicated by sending the side control information meet the following three conditions, resource reselection is triggered:

[0105] 1. The reserved resources in the detected side control information overlap with the resources selected and indicated by the UE, including full overlap and partial overlap.

[0106] 2. The RSRP of the PSCCH corresponding to the sidelink control information detected by the UE or the RSRP of the PSSCH scheduled by the PSCCH is greater than the SL RSRP threshold.

[0107] 3. The priority carried in the intercepted Sidelink Control Information (SCI) is higher than the priority of the data to be sent by the UE.

[0108] Figure 4 This is a schematic diagram of the pre-emption mechanism. Figure 4 As shown, resources w, x, y, z, v are time-frequency resources that the UE has selected, and resource x is located in time slot m. For resources x and y that the UE is about to send sidelink control information indicated in time slot m and have been indicated by sidelink control information previously sent by the UE. The UE performs resource listening at least once in time slot m-T3 to determine the candidate resource set. If resource x or y is not in the candidate resource set (satisfying the above conditions 1 and 2), it is further determined whether resource x or y is not in the candidate resource set due to the indication of the sidelink control information carrying a high priority (satisfying the above condition 3). If so, the UE performs resource reselection and reselects the time-frequency resources in x and y that meet the above 3 conditions.

[0109] Since the terminal without listening capability randomly selects the sideline resources and does not perform re-evaluation or pre-emption detection, the terminal with listening capability needs to perform re-evaluation or pre-emption detection after selecting the transmission resources before using the resources for sideline transmission to determine whether there is a resource conflict with other terminals. And when a conflict occurs, if the priority of the terminal with listening capability is higher than that of the terminal with conflict, the terminal will not reselect resources, but expect the terminal with conflict to reselect resources, which results in the terminal without listening capability only interfering with the sideline transmission of the high-priority terminal with listening capability.

[0110] In view of the above problems, the present application embodiment proposes a setting method: Figure 5 5 is a schematic flow chart of a setting method 500 according to an embodiment of the present application, which method can optionally be applied to the above-mentioned terminal device without interception capability. The method includes at least part of the following contents:

[0111] S510: When sending sidelink data, the first terminal device sets the priority in the SCI that schedules the sidelink data to the first priority.

[0112] The first terminal device may include a terminal device without a listening capability.

[0113] In the prior art, when a terminal sends sideline data, it carries the priority of the sideline data in the SCI; in this embodiment, the first priority carried in the SCI may be different from the priority corresponding to the sideline data sent by the first terminal device.

[0114] In one implementation, the first priority level may be set as the highest priority level.

[0115] Optionally, the highest priority is the highest priority among the priority levels allowed by the resource pool for the sidelink data transmission of the first terminal device, or the highest priority is the highest priority among all priorities corresponding to the sidelink data.

[0116] Embodiment 1:

[0117] In this embodiment, when a terminal without the listening capability sends sideline data, the first priority in the SCI for scheduling the sideline data is set as the highest priority.

[0118] When a terminal with listening capability performs pre-emption detection, it will reselect resources if the following conditions are met:

[0119] 1. The resources reserved in the sidelink control information of other terminals (RX UE) monitored by the monitoring terminal (TX UE) overlap with the resources selected and indicated by the TX UE, including full overlap and partial overlap.

[0120] 2. The RSRP of the PSCCH corresponding to the SCI of the RX UE detected by the TX UE or the RSRP of the PSSCH scheduled by the PSCCH is greater than the SL RSRP threshold.

[0121] 3. The first priority (denoted as P_rx) carried in the sidelink control information of the RX UE intercepted by the TX UE is higher than the priority (denoted as P_tx) of the data to be sent by the TX UE, that is, P_rx<P_tx, where P_rx and P_tx represent the values ​​corresponding to the priority level, and the higher the value, the lower the priority level. For example, the priority level corresponding to the sidelink data includes 8 levels, namely [0, 7], where the priority level value of 0 represents the highest priority, and the priority level value of 7 represents the lowest priority.

[0122] For terminals without listening capability, they obtain transmission resources by random selection. When using transmission resources for side transmission, the first priority in SCI is set to the highest priority, so that when other terminals perform pre-emption detection, their priority level is lower than or equal to the priority level of this terminal, which can meet one of the conditions for triggering the terminal to reselect resources.

[0123] It can be seen that the first priority in the SCI of the terminal without listening capability is set to the highest level, so that the priorities of other terminals with listening capability are lower than (or equal to) the priority of the terminal without listening capability. In the pre-emption detection mechanism, the terminal with listening capability can more easily meet the conditions for resource preemption, trigger resource reselection, and avoid resource conflicts with the terminal without listening capability.

[0124] When a terminal with listening capability performs resource selection or re-evaluation detection, if the terminal detects PSCCH within the listening window, it measures the RSRP of the PSCCH or the RSRP of the PSSCH scheduled by the PSCCH. If the measured RSRP is higher than the RSRP threshold and the reserved transmission resources determined according to the reserved information in the SCI conflict with the data to be sent by the terminal, the terminal with listening capability excludes the resource from the available resource set. The selection of the RSRP threshold is determined by the priority information carried in the detected PSCCH and the priority of the terminal's data to be transmitted. The higher the priority, the higher the corresponding RSRP threshold.

[0125] It can be seen that the first priority in the SCI of the terminal without listening capability is set to the highest level, so that the determined RSRP threshold is the highest. Then, after the terminal with listening capability detects the PSCCH in the listening window, the possibility that the RSRP of the PSCCH or the RSRP of the PSSCH scheduled by the PSCCH is higher than the RSRP threshold is the smallest, and the possibility that the terminal with listening capability excludes the reserved transmission resources of the terminal without listening capability from the available resource set is the smallest. Therefore, no matter what the priority of the terminal with listening capability is, the terminal is not easy to trigger resource reselection, and the transmission of the terminal without listening capability may conflict with the terminals with listening capability of all priorities, thereby avoiding the terminal without listening capability interfering with the side transmission of the high-priority terminals with listening capability.

[0126] In another implementation, the first priority level may be set as the lowest priority level.

[0127] Optionally, the lowest priority is the lowest priority among the priority levels allowed by the resource pool for the sidelink data transmission of the first terminal device, or the highest priority is the lowest priority among all priorities corresponding to the sidelink data.

[0128] Embodiment 2:

[0129] In this embodiment, when a terminal without the listening capability sends sideline data, the first priority in the SCI for scheduling the sideline data is set as the lowest priority.

[0130] When a terminal with the listening capability performs pre-emption detection, similar to Embodiment 1, when the above three conditions are met, the terminal will perform resource reselection.

[0131] For terminals without listening capability, they obtain transmission resources by random selection. When using transmission resources for side transmission, the first priority in SCI is set to the lowest priority, so that when other terminals perform pre-emption detection, their priority level is higher than or equal to the priority level of this terminal, and one of the conditions for triggering the terminal to reselect resources is not met.

[0132] It can be seen that the first priority in the SCI of the terminal without listening capability is set to the lowest level, so that the priorities of other terminals with listening capability are higher than (or equal to) the priority of the terminal without listening capability, and the terminal with listening capability does not meet the resource preemption conditions in the pre-emption detection mechanism, and does not trigger resource reselection. Therefore, no matter what the priority of the terminal with listening capability is, the terminal does not trigger resource reselection, and the transmission of the terminal without listening capability may conflict with the terminals with listening capability of all priorities, thus avoiding the terminal without listening capability only interfering with the side transmission of the high-priority terminal with listening capability.

[0133] When a terminal with listening capability performs resource selection or re-evaluation detection, if the terminal detects PSCCH within the listening window, it measures the RSRP of the PSCCH or the RSRP of the PSSCH scheduled by the PSCCH. If the measured RSRP is higher than the RSRP threshold and the reserved transmission resources determined according to the reserved information in the SCI conflict with the data to be sent by the terminal, the terminal with listening capability excludes the resource from the available resource set. The selection of the RSRP threshold is determined by the priority information carried in the detected PSCCH and the priority of the terminal's data to be transmitted. The higher the priority, the higher the corresponding RSRP threshold.

[0134] It can be seen that the first priority in the SCI of the terminal without listening capability is set to the lowest level, so that the determined RSRP threshold is the lowest. Then, after the terminal with listening capability detects the PSCCH within the listening window, it is most likely that the RSRP of the PSCCH or the RSRP of the PSSCH scheduled by the PSCCH is higher than the RSRP threshold. Then, the terminal with listening capability is most likely to exclude the reserved transmission resources of the terminal without listening capability from the available resource set.

[0135] In another implementation, the first priority may be set to be no higher than the priority corresponding to the first parameter; or, the value of the first priority may be set to be greater than or equal to the priority value corresponding to the first parameter.

[0136] Optionally, the first parameter may include a resource preemption enable (sl-PreemptionEnable) parameter. The sl-PreemptionEnable parameter is a parameter included in the resource pool configuration information, and the parameter is used to indicate whether the resource pool supports pre-emption detection. The possible values ​​of the sl-PreemptionEnable parameter include {enabled, p11, p12, p13, p14, p15, p16, p17, p18}. When the parameter is configured as "enabled", the listening terminal determines whether it is preempted by resources and whether resource selection is required according to the three conditions in Example 1 and Example 2. At this time, the first priority of the terminal without listening capability can be configured as the highest priority in accordance with the method of Example 1, so that when performing pre-emption detection, the listening terminal is more likely to meet the condition of being preempted by resources and trigger resource selection; or when performing resource selection or re-evaluation detection, the listening terminal is less likely to meet the condition of being preempted by resources and does not trigger resource selection. Alternatively, the method of Example 2 may be followed, that is, the first priority of the terminal without listening capability is configured as the lowest priority, so that when performing pre-emption detection, the listening terminal is less likely to meet the condition of being preempted by resources and resource selection is not triggered; or when performing resource selection or re-evaluation detection, the listening terminal is more likely to meet the condition of being preempted by resources and resource selection is triggered.

[0137] Embodiment 3:

[0138] In this embodiment, when sending sidelink data, a terminal without the listening capability sets the value of the first priority in the SCI for scheduling the sidelink data to be greater than or equal to the priority value corresponding to the sl-PreemptionEnable parameter.

[0139] When the sl-PreemptionEnable parameter is configured as P_pre, that is, corresponding to a value from pl1 to p18, the listening terminal determines whether it is preempted by resources and whether resource selection is required. In addition to the three conditions in Embodiment 1 and Embodiment 2, the following conditions need to be met:

[0140] 4. The priority carried in the sidelink control information of the RX UE detected by the TX UE is higher than the priority corresponding to the parameter sl-PreemptionEnable, that is, P_rx<P_pre.

[0141] Only when the above four conditions are met, the terminal performing resource monitoring will be preempted by other terminal resources (pre-emption), and trigger resource selection.

[0142] When a terminal without listening capability sends side data, the first priority in its SCI is set to a level greater than or equal to P_pre, that is, P_rx>=P_pre, that is, the side data sent by the terminal without listening capability has a low priority, so the terminal performing listening will not be preempted by resources, that is, no matter whether the priority of the terminal performing listening is lower than the priority of the terminal without listening capability, it will not be preempted by resources, and will not reselect resources. In other words, all terminals performing resource listening will not reselect resources even if they detect resource conflicts with the resources selected by the terminal without listening capability. The transmission of the terminal without listening capability may conflict with the resources of all priority terminals with listening capability, thereby avoiding interference with the transmission of only the terminals with high priority and listening capability.

[0143] It can be seen that the first priority of the terminal without listening capability is set to a priority threshold not higher than the first parameter (for example, the sl-PreemptionEnable parameter) configured, and the terminal with listening capability will not be preempted by resources during listening, and will not reselect resources, so that the terminal without listening capability may have resource conflicts with the terminals with listening capability of all priority levels, and avoid affecting only the transmission of the high-priority terminals with listening capability.

[0144] In the above embodiments 1 to 3, by setting the first priority of the terminal device without listening capability, the same interference situation is achieved for the terminals with listening capability of all priorities. The transmission of the terminal without listening capability may have resource conflicts with the terminals with listening capability of all priorities, or may not have resource conflicts with the terminals with listening capability of all priorities, thereby avoiding affecting only the transmission of the terminals with listening capability of high priority.

[0145] The embodiment of the present application also proposes another setting method, which determines the RSRP threshold corresponding to the terminal device without listening capability when performing resource selection or resource reselection through certain settings, so as to avoid affecting only the transmission of high-priority terminals with listening capability.

[0146] Figure 6 6 is a schematic flow chart of a setting method 600 according to an embodiment of the present application, which method can optionally be applied to the above-mentioned terminal device with interception capability. The method includes at least part of the following contents:

[0147] S610: When the second terminal device performs resource selection, resource reselection, re-evaluation detection or pre-emption detection, the second terminal device determines the RSRP threshold corresponding to the first terminal device according to the first configuration parameter; wherein the first terminal device includes a terminal device without listening capability.

[0148] The above-mentioned first configuration parameter may be determined by network configuration information or pre-configuration information.

[0149] In some implementations, the first configuration parameter may include a priority parameter.

[0150] Optionally, the determining the RSRP threshold corresponding to the first terminal device according to the first configuration parameter includes:

[0151] Determine the RSRP threshold according to the first configuration parameter and the priority information carried in the SCI of the first terminal device; or,

[0152] Determine the RSRP threshold according to the first configuration parameter and the priority information of the second terminal device; or,

[0153] The RSRP threshold is determined according to the first configuration parameter, the priority information carried in the SCI of the first terminal device, and the priority information of the second terminal device.

[0154] In some implementations, the first configuration parameter may include an RSRP threshold.

[0155] The following uses two examples in Embodiment 4 to introduce two examples of the above-mentioned first configuration parameters respectively.

[0156] Embodiment 4:

[0157] When a terminal with listening capability performs resource selection, resource selection, re-evaluation detection or pre-emption detection, if a terminal without listening capability is detected, the first configuration parameter is used for the terminal without listening capability.

[0158] If the terminal with the listening capability is able to detect and identify the terminal without the listening capability, the first configuration parameter may be used for the terminal without the listening capability.

[0159] Example 4-1:

[0160] During the listening process, the terminal with listening capability determines the candidate resource set through resource exclusion. During the resource exclusion process, if the SCI of other terminals is detected, the RSRP threshold is determined according to the priority information (denoted as P_rx) carried in the SCI of other terminals and the priority information (denoted as P_tx) of the terminal. If the RSRP of other terminals is measured to exceed the RSRP threshold, and the transmission resources reserved by other terminals overlap with the resources of the terminal in the resource selection window, the resources are excluded from the resource selection window. In this process, if it is detected that the other terminal is a terminal without listening capability, the terminal determines the RSRP threshold according to the first configuration parameter.

[0161] Optionally, the first configuration parameter is a priority parameter. Further, the terminal determines the RSRP threshold according to the priority parameter, P_rx and P_tx, or the terminal determines the RSRP threshold according to the priority parameter and P_rx, or the terminal determines the RSRP threshold according to the priority parameter and P_tx, or the terminal determines the RSRP threshold only according to the priority parameter.

[0162] For example, the network configures a correspondence or table of P_tx, P_rx and RSRP thresholds, that is, according to P_tx and P_rx, the corresponding RSRP threshold can be determined in combination with the correspondence or table. Generally, the higher the priority, the higher the corresponding RSRP threshold.

[0163] The network configures a priority parameter. When the terminal detects a terminal without listening capability, the RSRP threshold is determined according to the priority parameter and P_tx. The network can configure the priority level corresponding to the priority parameter to be very low, for example, corresponding to priority level 7 (i.e., the lowest priority), so that the determined RSRP threshold is very low. In this way, it is easy to make the measured RSRP of the terminal without listening capability higher than the threshold, and exclude the resources reserved for the terminal without listening capability from the resource selection window, thereby avoiding transmission conflicts between the terminal with listening capability and the terminal without listening capability.

[0164] For another example, the network configures a priority parameter, and when the terminal detects a terminal without listening capability, the RSRP threshold is determined according to the priority parameter and P_rx. In this way, when the terminal with listening capability performs resource exclusion, the RSRP threshold is determined by the priority parameter, regardless of whether the priority corresponding to the terminal is high or low, so that the interference probability of the terminal without listening capability to the terminals with listening capability of all priority levels is the same, avoiding interference only with the terminals with listening capability of high priority levels. Further, the network can configure the priority level corresponding to the priority parameter to be very low, for example, corresponding to priority level 7 (i.e., the lowest priority), so that the determined RSRP threshold is very low, so that it is easy to make the measured RSRP of the terminal without listening capability higher than the threshold, and exclude the resources reserved by the terminal without listening capability from the resource selection window, thereby avoiding transmission conflicts between the terminal with listening capability and the terminal without listening capability.

[0165] For another example, the network configures a priority parameter, and when the terminal detects a terminal without listening capability, the RSRP threshold is determined according to the priority parameter. In this way, when the terminal with listening capability performs resource exclusion, the RSRP threshold determined is the same, regardless of whether the priority corresponding to the terminal is high or low, so that the interference probability of the terminal without listening capability to the terminals with listening capability of all priority levels is the same, avoiding interference only with the terminals with listening capability of high priority levels. Further, the network can configure the priority level corresponding to the priority parameter to be very low, for example, corresponding to priority level 7 (i.e., the lowest priority), so that the determined RSRP threshold is very low, so that it is easy to make the measured RSRP of the terminal without listening capability higher than the threshold, and exclude the resources reserved by the terminal without listening capability from the resource selection window, thereby avoiding transmission conflicts between the terminal with listening capability and the terminal without listening capability.

[0166] For another example, the network configures a priority parameter. When the terminal detects a terminal without listening capability, the RSRP threshold is determined according to the priority parameter, P_tx and P_rx. The network can configure the priority level corresponding to the priority parameter to be very low, for example, corresponding to priority level 7 (i.e., the lowest priority), so that the determined RSRP threshold is very low. In this way, it is easy to make the measured RSRP of the terminal without listening capability higher than the threshold, and exclude the resources reserved for the terminal without listening capability from the resource selection window, thereby avoiding transmission conflicts between the terminal with listening capability and the terminal without listening capability.

[0167] Example 4-2:

[0168] In this example, the first configuration parameter is the RSRP threshold.

[0169] During the listening process, a terminal with listening capability determines a set of candidate resources through resource exclusion. During the resource exclusion process, if an SCI sent by a terminal without listening capability is detected, the first configuration parameter, i.e., the RSRP threshold, is used to perform resource exclusion. That is, the terminal measures the RSRP of the terminal without listening capability. If the RSRP threshold is exceeded, the transmission resources reserved for the terminal without listening capability are excluded from the resource selection window.

[0170] It can be seen that since the RSRP threshold used by terminals with listening capability of all priorities is the same, the probability of interference of terminals without listening capability to terminals with listening capability of all priority levels is the same, thus avoiding interference only with terminals with listening capability of high priority levels.

[0171] Furthermore, the RSRP threshold can be set very low so that it is easy to make the measured RSRP of the terminal without listening capability higher than the threshold, and exclude the resources reserved for the terminal without listening capability from the resource selection window, thereby avoiding transmission conflicts between the terminal with listening capability and the terminal without listening capability.

[0172] In this embodiment, the prerequisite is that a terminal without listening capability can be identified. The above step S610 may further include: the second terminal device determines that the first terminal device is a terminal device without listening capability.

[0173] Optionally, the second terminal device determines that the first terminal device is a terminal device without a listening capability by using at least one of the following methods:

[0174] Method 1: The second terminal device determines that the first terminal device is a terminal device without interception capability according to the information field in the SCI of the first terminal device;

[0175] For example, the SCI includes a 1-bit information field. When the value of the bit is 1, it indicates that the terminal has no intercept capability, and when the value of the bit is 0, it indicates that the terminal has the intercept capability.

[0176] The SCI of the first terminal device may be a first-order SCI and / or a second-order SCI.

[0177] Mode 2: The second terminal device determines that the first terminal device is a terminal device without interception capability according to the format of the SCI of the first terminal device.

[0178] For example, the formats of the above-mentioned SCI include a first format and a second format;

[0179] The first format may include at least one of a first-order SCI format 1-A, a second-order SCI format 2-A, and a second-order SCI format 2-B.

[0180] Mode 3: The second terminal device determines that the first terminal device is a terminal device without interception capability according to the scrambling code sequence used to scramble the SCI bit sequence of the first terminal device;

[0181] For example, the information bit sequence of SCI, or the bit sequence after channel coding can be scrambled. If the first sequence is used for scrambling, it indicates a terminal with listening capability. If the second sequence is used for scrambling, it indicates a terminal without listening capability.

[0182] Mode 4: The second terminal device determines that the first terminal device is a terminal device without listening capability according to the DMRS sequence of the PSCCH or PSSCH of the first terminal device;

[0183] For example, if the DMRS sequence of PSCCH or PSSCH adopts the first sequence, it indicates that it is a terminal with listening capability, and if it adopts the second sequence, it indicates that it is a terminal without listening capability.

[0184] Method 5: When the second terminal device detects the PSCCH of the first terminal device in the first time-frequency resource set configured in the resource pool, it is determined that the first terminal device is a terminal device without listening capability.

[0185] In this way, a first time-frequency resource set can be configured in the resource pool, and a terminal without listening capability can be configured to transmit in the first time-frequency resource set. Accordingly, when other terminals detect PSCCH (i.e., SCI) in the first time-frequency resource set, it can be determined that the terminal sending the PSCCH is a terminal without listening capability.

[0186] The present application also provides a side transmission method. Figure 7 700 is a schematic flow chart of a sidelink data transmission method according to an embodiment of the present application, which method can be optionally applied to the above-mentioned terminal device with listening capability and the terminal device without listening capability. The method includes at least part of the following contents:

[0187] S710: The terminal device obtains resource pool configuration information, and determines, based on a first priority threshold, to transmit sidelink data in the resource pool whose transmission priority is not higher than that corresponding to the first priority threshold.

[0188] Optionally, the above resource pool configuration information includes the first priority threshold.

[0189] Optionally, the resource pool configuration information may include indication information, where the indication information is used to indicate that a terminal without listening capability is allowed to perform data transmission in the resource pool.

[0190] The following embodiment 5 corresponds to this side data transmission mode.

[0191] Embodiment 5:

[0192] When random resource selection is allowed in the resource pool, the resource pool configuration information includes a first priority threshold, and sidelink data with a priority higher than the first priority threshold is not allowed to be transmitted in the resource pool.

[0193] When the resource pool allows terminals with listening capability (selecting transmission resources by listening) and terminals without listening capability (obtaining transmission resources by random selection) to use together, the terminal without listening capability selects the transmission resources. Since no re-evaluation and pre-emption detection will be performed, resource reselection will not be performed. Other terminals with listening capability can only be expected to avoid interference with the terminals without listening capability through re-evaluation or pre-emption detection. When the priority of the terminal with listening capability is higher than that of the terminal without listening capability, resource reselection will not be triggered, resulting in interference between the terminal without listening capability and the high-priority terminal with listening capability. Therefore, in the embodiment of the present application, a first priority threshold is configured in the resource pool configuration information, and side data with a priority higher than the first priority threshold is not allowed to be transmitted in the resource pool, thereby avoiding interference of the terminal without listening capability with the high-priority side transmission.

[0194] For example, the priority of sidelink data is 8 levels, namely [0, 7], where 0 represents the highest priority and 7 represents the lowest priority. If the first priority threshold is configured as P_thd=3 in the resource pool configuration information, then sidelink data with priority levels of 0, 1, and 2 (whose corresponding priorities are higher than the priority corresponding to the first priority threshold) are not allowed to be transmitted in the resource pool, that is, the priority level of sidelink data that the resource pool can support is [3, 7]. This avoids interference with sidelink data with priorities of 0, 1, and 2 by terminals without listening capability.

[0195] The present application also provides a side transmission method. Figure 8 8 is a schematic flow chart of a sidelink data transmission method 800 according to an embodiment of the present application, which method can optionally be applied to the above-mentioned terminal device with interception capability. The method includes at least part of the following contents:

[0196] S810: When the channel busy ratio (CBR) is lower than the first threshold, the second terminal device detects a resource conflict with the first terminal device, and the second terminal device reselects resources; wherein the first terminal device includes a terminal device without listening capability and the second terminal device includes a terminal device with listening capability.

[0197] Optionally, when the second terminal device detects a resource conflict with the first terminal device and the RSRP of the first terminal device measured by the second terminal device is higher than a second threshold, the second terminal device performs resource reselection.

[0198] Optionally, the first threshold and the second threshold are determined according to network configuration information or pre-configuration information.

[0199] In this embodiment, the prerequisite is that a terminal without listening capability can be identified. The above step S810 may further include: the second terminal device determines that the first terminal device is a terminal device without listening capability. The specific identification method is similar to that in the above embodiment 4, and will not be repeated here.

[0200] The following embodiment 6 corresponds to this side data transmission mode.

[0201] Embodiment 6:

[0202] If the CBR is lower than the first threshold, when the terminal with the listening capability detects a resource conflict with the terminal without the listening capability, the terminal with the listening capability performs resource selection to avoid interference with the terminal without the listening capability.

[0203] Alternatively, if the CBR is lower than the first threshold, when the terminal with listening capability detects a resource conflict with the terminal without listening capability, and the RSRP of the terminal without listening capability measured by the terminal with listening capability is higher than the second threshold, the terminal with listening capability performs resource selection to avoid interference with the terminal without listening capability.

[0204] The first threshold and the second threshold may be determined according to network configuration information or pre-configuration information.

[0205] When the CBR measured by the terminal is lower than the first threshold, the system resources can be considered idle. At this time, the terminal detects that there is a resource conflict, which can trigger the terminal to reselect resources; since the system is idle, the probability of selecting idle resources during resource reselection is high, thereby avoiding interference between terminals.

[0206] The present application also provides a configuration method. Fig. 9 900 is a schematic flow chart of a configuration method according to an embodiment of the present application, which method can optionally be applied to a network device. The method includes at least part of the following contents:

[0207] S910: The network device sends configuration information to the second terminal device, where the configuration information is used to determine a first configuration parameter, where the first configuration parameter is used by the second terminal device to determine an RSRP threshold corresponding to the first terminal device when performing resource selection, resource reselection, re-evaluation detection, or pre-emption detection; wherein,

[0208] The first terminal device includes a terminal device without a listening capability;

[0209] The second terminal device includes a terminal device with a listening capability.

[0210] Optionally, the first configuration parameter includes a priority parameter.

[0211] Optionally, the first configuration parameter is used by the second network device to determine the RSRP threshold according to the first configuration parameter and priority information carried in the SCI of the first terminal device; or,

[0212] The first configuration parameter is used by the second network device to determine the RSRP threshold according to the first configuration parameter and the priority information of the second terminal device; or,

[0213] The first configuration parameter is used by the second network device to determine the RSRP threshold according to the first configuration parameter, the priority information carried in the SCI of the first terminal device, and the priority information of the second terminal device.

[0214] Optionally, the first configuration parameter includes an RSRP threshold.

[0215] The present application also provides a configuration method. Fig.10 1 is a schematic flow chart of a configuration method 1000 according to an embodiment of the present application, which method can optionally be applied to a network device. The method includes at least part of the following contents:

[0216] S1010: The network device sends resource pool configuration information to the terminal device, where the resource pool configuration information is used to instruct the terminal device to determine, based on a first priority threshold, to transmit sidelink data in a resource pool whose transmission priority is not higher than that corresponding to the first priority threshold.

[0217] Optionally, the above resource pool configuration information includes a first priority threshold.

[0218] Optionally, the resource pool configuration information includes indication information, where the indication information is used to indicate that a terminal without a listening capability is allowed to perform data transmission in the resource pool.

[0219] The present application also provides a configuration method. Fig.111 is a schematic flow chart of a configuration method 1100 according to an embodiment of the present application, which method can optionally be applied to a network device. The method includes at least part of the following contents:

[0220] S1110: The network device sends configuration information to the second terminal device, where the configuration information is used to instruct the second terminal device to reselect resources if a resource conflict with the first terminal device is detected when the CBR is lower than the first threshold; wherein:

[0221] The first terminal device includes a terminal device without a listening capability;

[0222] The second terminal device includes a terminal device with a listening capability.

[0223] Optionally, the above configuration information is used to instruct the second terminal device to reselect resources if a resource conflict is detected with the first terminal device when the CBR is lower than the first threshold, and the RSRP of the first terminal device measured by the second terminal device is higher than the second threshold.

[0224] Optionally, the above configuration information includes a first threshold and a second threshold.

[0225] The embodiment of the present application further provides a first terminal device, Fig.12 1 is a schematic diagram of a first terminal device 1200 according to an embodiment of the present application, including:

[0226] The priority setting module 1210 is used to set the priority in the SCI for scheduling the sideline data to the first priority when the first terminal device sends the sideline data.

[0227] Optionally, the first priority is the highest priority or a low priority; or,

[0228] The value of the first priority is greater than or equal to the priority value corresponding to the first parameter; or,

[0229] The first priority is not higher than the priority corresponding to the first parameter.

[0230] Optionally, the first parameter includes a resource preemption enable (sl-PreemptionEnable) parameter.

[0231] Optionally, the highest priority is the highest priority among the priority levels allowed by the resource pool for the sidelink data transmission of the first terminal device, or the highest priority is the highest priority among all priorities corresponding to the sidelink data.

[0232] Optionally, the lowest priority is the lowest priority among the priority levels allowed by the resource pool for the sidelink data transmission of the first terminal device, or the lowest priority is the lowest priority among all priorities corresponding to the sidelink data.

[0233] Optionally, the first priority level may be different from the priority level corresponding to the sidelink data sent by the first terminal device.

[0234] Optionally, the first terminal device includes a terminal device without a listening capability.

[0235] It should be understood that the above and other operations and / or functions of the modules in the first terminal device according to the embodiment of the present application are respectively to implement Figure 5 The corresponding process of the first terminal device in method 500 is not repeated here for the sake of brevity.

[0236] The embodiment of the present application also provides a second terminal device, Fig.13 1 is a schematic diagram of a second terminal device 1300 according to an embodiment of the present application, including:

[0237] The first determination module 1310 is used to determine the RSRP threshold corresponding to the first terminal device according to the first configuration parameter when the second terminal device performs resource selection, resource reselection, re-evaluation detection or resource pre-emption detection; wherein the first terminal device includes a terminal device without listening capability.

[0238] Specifically, the first configuration parameter includes a priority parameter.

[0239] Specifically, the first determination module is used for:

[0240] Determine the RSRP threshold according to the first configuration parameter and the priority information carried in the SCI of the first terminal device; or,

[0241] Determine the RSRP threshold according to the first configuration parameter and the priority information of the second terminal device; or,

[0242] The RSRP threshold is determined according to the first configuration parameter, the priority information carried in the SCI of the first terminal device, and the priority information of the second terminal device.

[0243] Specifically, the first configuration parameter includes an RSRP threshold.

[0244] Specifically, the first configuration parameter is determined by network configuration information or pre-configuration information.

[0245] Specifically, Fig.1414 is a schematic diagram of another structure of a second terminal device 1400 according to an embodiment of the present application. The device may further include: a second determination module 1420, configured to determine that the first terminal device is a terminal device without a listening capability.

[0246] Specifically, the second determination module 1420 uses at least one of the following methods to determine that the first terminal device is a terminal device without the listening capability:

[0247] Determining, according to the information field in the SCI of the first terminal device, that the first terminal device is a terminal device without interception capability;

[0248] Determining, according to the format of the SCI of the first terminal device, that the first terminal device is a terminal device without a listening capability;

[0249] Determining, based on a scrambling code sequence for scrambling an SCI bit sequence of the first terminal device, that the first terminal device is a terminal device without an intercept capability;

[0250] Determining, according to a DMRS sequence of a PSCCH or a PSSCH of the first terminal device, that the first terminal device is a terminal device without a listening capability;

[0251] When the PSCCH of the first terminal device is detected in the first time-frequency resource set configured in the resource pool, it is determined that the first terminal device is a terminal device without listening capability.

[0252] Specifically, the information field in the SCI of the first terminal device includes:

[0253] The information field in the first-order SCI and / or the second-order SCI of the first terminal device.

[0254] Specifically, the formats of the SCI include a first format and a second format;

[0255] The first format includes at least one of the first-order SCI format 1-A, the second-order SCI format 2-A and the second-order SCI format 2-B.

[0256] It should be understood that the above and other operations and / or functions of the modules in the second terminal device according to the embodiment of the present application are respectively to implement Figure 6 The corresponding process of the second terminal device in method 600 is not repeated here for the sake of brevity.

[0257] The present application also provides a terminal device, Fig.15 1 is a schematic diagram of a terminal device 1500 according to an embodiment of the present application, including:

[0258] The transmission module 1510 is used to obtain resource pool configuration information, and determine, according to the first priority threshold, to transmit sidelink data in the resource pool whose transmission priority is not higher than the priority corresponding to the first priority threshold.

[0259] Optionally, the resource pool configuration information includes a first priority threshold.

[0260] Optionally, the resource pool configuration information includes indication information, where the indication information is used to indicate that a terminal without a listening capability is allowed to perform data transmission in the resource pool.

[0261] It should be understood that the above and other operations and / or functions of the modules in the terminal device according to the embodiment of the present application are respectively to implement Figure 7 The corresponding process of the terminal device in method 700 is not repeated here for the sake of brevity.

[0262] The embodiment of the present application also provides a second terminal device, Fig.16 1 is a schematic diagram of a second terminal device 1600 according to an embodiment of the present application, including:

[0263] The resource reselection module 1610 is used to control the second terminal device to reselect resources when the second terminal device detects a resource conflict with the first terminal device when the CBR is lower than the first threshold; wherein the first terminal device includes a terminal device without listening capability.

[0264] Optionally, the resource reselection module 1610 is used to:

[0265] When the second terminal device detects a resource conflict with the first terminal device and the RSRP of the first terminal device measured by the second terminal device is higher than a second threshold, the second terminal device is controlled to reselect resources.

[0266] Optionally, the first threshold and the second threshold are determined according to network configuration information or pre-configuration information.

[0267] Optionally, Fig.17 17 is a schematic diagram of a second terminal device 1700 according to an embodiment of the present application, further comprising:

[0268] The third determination module 1720 is used to determine whether the first terminal device is a terminal device without a listening capability.

[0269] Optionally, the third determination module 1720 determines that the first terminal device is a terminal device without a listening capability by using at least one of the following methods:

[0270] Determining, according to the information field in the SCI of the first terminal device, that the first terminal device is a terminal device without interception capability;

[0271] Determining, according to the format of the SCI of the first terminal device, that the first terminal device is a terminal device without a listening capability;

[0272] Determining, based on a scrambling code sequence for scrambling an SCI bit sequence of the first terminal device, that the first terminal device is a terminal device without an intercept capability;

[0273] Determining, according to a DMRS sequence of a PSCCH or a PSSCH of the first terminal device, that the first terminal device is a terminal device without a listening capability;

[0274] When the PSCCH of the first terminal device is detected in the first time-frequency resource set configured in the resource pool, it is determined that the first terminal device is a terminal device without listening capability.

[0275] Optionally, the information field in the SCI of the first terminal device includes:

[0276] The information field in the first-order SCI and / or the second-order SCI of the first terminal device.

[0277] Optionally, the format of the SCI includes a first format and a second format;

[0278] The first format includes at least one of the first-order SCI format 1-A, the second-order SCI format 2-A and the second-order SCI format 2-B.

[0279] It should be understood that the above and other operations and / or functions of the modules in the second terminal device according to the embodiment of the present application are respectively to implement Figure 8 The corresponding process of the second terminal device in method 800 is not repeated here for the sake of brevity.

[0280] The embodiment of the present application also provides a network device, Fig.18 1 is a schematic diagram of a network device 1800 according to an embodiment of the present application, including:

[0281] The first sending module 1810 is used to send configuration information to the second terminal device, where the configuration information is used to determine a first configuration parameter, and the first configuration parameter is used by the second terminal device to determine the RSRP threshold corresponding to the first terminal device when performing resource selection, resource reselection, re-evaluation detection or pre-emption detection; wherein,

[0282] The first terminal device includes a terminal device without a listening capability;

[0283] The second terminal device includes a terminal device with a listening capability.

[0284] Optionally, the first configuration parameter includes a priority parameter.

[0285] Optionally, the first configuration parameter is used by the second network device to determine the RSRP threshold according to the first configuration parameter and priority information carried in the SCI of the first terminal device; or,

[0286] The first configuration parameter is used by the second network device to determine the RSRP threshold according to the first configuration parameter and the priority information of the second terminal device; or,

[0287] The first configuration parameter is used by the second network device to determine the RSRP threshold according to the first configuration parameter, the priority information carried in the SCI of the first terminal device, and the priority information of the second terminal device.

[0288] Optionally, the first configuration parameter includes an RSRP threshold.

[0289] It should be understood that the above and other operations and / or functions of the modules in the network device according to the embodiment of the present application are respectively to implement Fig. 9 The corresponding process of the network device in the method 900 is not repeated here for the sake of brevity.

[0290] The embodiment of the present application also provides a network device, Fig.19 1 is a schematic diagram of a network device 1900 according to an embodiment of the present application, including:

[0291] The second sending module 1910 is used to send resource pool configuration information to the terminal device, where the resource pool configuration information is used to instruct the terminal device to determine, based on the first priority threshold, to transmit sidelink data in the resource pool whose transmission priority is not higher than the priority corresponding to the first priority threshold.

[0292] Optionally, the resource pool configuration information includes a first priority threshold.

[0293] Optionally, the resource pool configuration information includes indication information, where the indication information is used to indicate that a terminal without a listening capability is allowed to perform data transmission in the resource pool.

[0294] It should be understood that the above and other operations and / or functions of the modules in the network device according to the embodiment of the present application are respectively to implement Fig.10 For the sake of brevity, the corresponding process of the network device in method 1000 is not repeated here.

[0295] The embodiment of the present application also provides a network device, Fig. 20 2 is a schematic diagram of a network device 2000 according to an embodiment of the present application, including:

[0296] The third sending module 2010 is used to send configuration information to the second terminal device, where the configuration information is used to instruct the second terminal device to reselect resources if a resource conflict with the first terminal device is detected when the CBR is lower than the first threshold; wherein,

[0297] The first terminal device includes a terminal device without a listening capability;

[0298] The second terminal device includes a terminal device with a listening capability.

[0299] Optionally, the configuration information is used to instruct the second terminal device to reselect resources if a resource conflict is detected with the first terminal device when the CBR is lower than the first threshold, and the RSRP of the first terminal device measured by the second terminal device is higher than a second threshold.

[0300] Optionally, the configuration information includes a first threshold and a second threshold.

[0301] It should be understood that the above and other operations and / or functions of the modules in the network device according to the embodiment of the present application are respectively to implement Fig.11 For the sake of brevity, the corresponding process of the network device in method 1100 is not repeated here.

[0302] Fig.21 It is a schematic structural diagram of a communication device 2100 according to an embodiment of the present application. Fig.21 The communication device 2100 shown includes a processor 2110, and the processor 2110 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0303] Alternatively, if Fig.21 As shown, the communication device 2100 may further include a memory 2120. The processor 2110 may call and run a computer program from the memory 2120 to implement the method in the embodiment of the present application.

[0304] The memory 2120 may be a separate device independent of the processor 2110 , or may be integrated into the processor 2110 .

[0305] Alternatively, if Fig.21 As shown, the communication device 2100 may further include a transceiver 2130, and the processor 2110 may control the transceiver 2130 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0306] The transceiver 2130 may include a transmitter and a receiver. The transceiver 2130 may further include an antenna, and the number of antennas may be one or more.

[0307] Optionally, the communication device 2100 may be a terminal device of an embodiment of the present application, and the communication device 2100 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described again for the sake of brevity.

[0308] Optionally, the communication device 2100 may be a network device of an embodiment of the present application, and the communication device 2100 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0309] Fig. 22 is a schematic structural diagram of a chip 2200 according to an embodiment of the present application. Fig. 22 The chip 2200 shown includes a processor 2210, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0310] Alternatively, if Fig. 22 As shown, the chip 2200 may further include a memory 2220. The processor 2210 may call and run a computer program from the memory 2220 to implement the method in the embodiment of the present application.

[0311] The memory 2220 may be a separate device independent of the processor 2210 , or may be integrated into the processor 2210 .

[0312] Optionally, the chip 2200 may further include an input interface 2230. The processor 2210 may control the input interface 2230 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0313] Optionally, the chip 2200 may further include an output interface 2240. The processor 2210 may control the output interface 2240 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0314] Optionally, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0315] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0316] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0317] The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0318] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM).

[0319] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0320] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state drive (SSD)).

[0321] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0322] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0323] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A setting method, comprising: When the first terminal device sends the sidelink data to the second terminal device, the priority in the sidelink control information SCI for scheduling the sidelink data is set to a first priority, where the first priority is used by the second terminal device to determine a reference signal received power RSRP threshold; The first priority is the lowest priority among the priority levels allowed by the resource pool for the first terminal device to perform sideline data transmission, or the lowest priority among all priorities corresponding to the sideline data. The first priority level used by the second terminal device to determine the reference signal received power RSRP threshold includes: The first priority is used together with a first configuration parameter to determine the RSRP threshold at the second terminal device, or the first priority is used together with the first configuration parameter and priority information of the second terminal device to determine the RSRP threshold at the second terminal device, The first terminal device includes a terminal device without a listening capability, The second terminal device includes a terminal device with a listening capability.

2. The method according to claim 1, wherein: The first priority is different from the priority corresponding to the sidelink data sent by the first terminal device.

3. A setting method, comprising: The second terminal device determines the reference signal received power RSRP threshold according to the first configuration parameter when performing resource selection, resource reselection, re-evaluation detection or resource pre-emption detection; Wherein, determining the RSRP threshold according to the first configuration parameter includes: determining the RSRP threshold according to the first configuration parameter and the priority information carried in the SCI of the first terminal device, or determining the RSRP threshold according to the first configuration parameter, the priority information carried in the SCI of the first terminal device and the priority information of the second terminal device, The priority information carried in the SCI of the first terminal device includes a first priority, which is the lowest priority among the priority levels allowed by the resource pool for the first terminal device to perform sideline data transmission, or the lowest priority among all priorities corresponding to the sideline data. The first terminal device includes a terminal device without a listening capability, The second terminal device includes a terminal device with a listening capability.

4. The method according to claim 3, wherein: The first configuration parameter comprises a priority parameter.

5. The method according to claim 3, wherein: The first configuration parameter includes an RSRP threshold.

6. According to the method according to any one of claims 3 to 5, the first configuration parameter is determined by network configuration information or pre-configuration information.

7. The method according to any one of claims 3 to 5, further comprising: The second terminal device determines that the first terminal device is a terminal device without listening capability.

8. The method according to claim 7, wherein: The second terminal device determines that the first terminal device is a terminal device without a listening capability by using at least one of the following methods: The second terminal device determines, according to the information field in the SCI of the first terminal device, that the first terminal device is a terminal device without an intercept capability; The second terminal device determines, according to the format of the SCI of the first terminal device, that the first terminal device is a terminal device without a listening capability; The second terminal device determines, according to a scrambling code sequence for scrambling an SCI bit sequence of the first terminal device, that the first terminal device is a terminal device without an intercept capability; The second terminal device determines, according to a demodulation reference signal DMRS sequence of a physical sideline control channel PSCCH or a physical sideline shared channel PSSCH of the first terminal device, that the first terminal device is a terminal device without a listening capability; When the second terminal device detects the PSCCH of the first terminal device in the first time-frequency resource set configured in the resource pool, it determines that the first terminal device is a terminal device without listening capability.

9. The method according to claim 8, wherein: The information field in the SCI of the first terminal device includes: The information field in the first-order SCI and / or the second-order SCI of the first terminal device.

10. The method according to claim 9, wherein: The format of the SCI includes a first format and a second format; The first format includes at least one of a first-order SCI format 1-A, a second-order SCI format 2-A, and a second-order SCI format 2-B.

11. A configuration method, comprising: The network device sends configuration information to the second terminal device, where the configuration information is used to determine a first configuration parameter, where the first configuration parameter is used by the second terminal device to determine an RSRP threshold when performing resource selection, resource reselection, re-evaluation detection, or pre-emption detection; The first configuration parameter is used by the second terminal device to determine the RSRP threshold according to the first configuration parameter and the priority information carried in the SCI of the first terminal device, or the first configuration parameter is used by the second terminal device to determine the RSRP threshold according to the first configuration parameter, the priority information carried in the SCI of the first terminal device and the priority information of the second terminal device, The priority information carried in the SCI of the first terminal device includes a first priority, which is the lowest priority among the priority levels allowed by the resource pool for the first terminal device to perform sideline data transmission, or the lowest priority among all priorities corresponding to the sideline data. The first terminal device comprises a terminal device without a listening capability; The second terminal device includes a terminal device with a listening capability.

12. The method according to claim 11, wherein: The first configuration parameter comprises a priority parameter.

13. The method according to claim 11, wherein: The first configuration parameter includes an RSRP threshold.

14. A first terminal device, comprising: A priority setting module, configured to set the priority in the SCI for scheduling the sideline data to a first priority when the first terminal device sends the sideline data to the second terminal device, wherein the first priority is used by the second terminal device to determine a reference signal received power RSRP threshold; The first priority is the lowest priority among the priority levels allowed by the resource pool for the first terminal device to perform sideline data transmission, or is the lowest priority among all priorities corresponding to the sideline data. The first priority level used by the second terminal device to determine the reference signal received power RSRP threshold includes: The first priority is used together with a first configuration parameter to determine the RSRP threshold at the second terminal device, or the first priority is used together with the first configuration parameter and priority information of the second terminal device to determine the RSRP threshold at the second terminal device, The first terminal device includes a terminal device without a listening capability, The second terminal device includes a terminal device with a listening capability.

15. The first terminal device according to claim 14, wherein: The first priority is different from the priority corresponding to the sidelink data sent by the first terminal device.

16. A second terminal device, comprising: A first determination module is used for determining a reference signal received power RSRP threshold according to a first configuration parameter when the second terminal device performs resource selection, resource reselection, re-evaluation detection or resource preemption detection; Wherein, the first determining module is used for: determining the RSRP threshold according to the first configuration parameter and the priority information carried in the SCI of the first terminal device, or determining the RSRP threshold according to the first configuration parameter, the priority information carried in the SCI of the first terminal device and the priority information of the second terminal device, The priority information carried in the SCI of the first terminal device includes a first priority, which is the lowest priority among the priority levels allowed by the resource pool for the first terminal device to perform sideline data transmission, or the lowest priority among all priorities corresponding to the sideline data. The first terminal device comprises a terminal device without a listening capability; The second terminal device includes a terminal device with a listening capability.

17. The second terminal device according to claim 16, wherein: The first configuration parameter comprises a priority parameter.

18. The second terminal device according to claim 16, wherein: The first configuration parameter includes an RSRP threshold.

19. According to the second terminal device according to any one of claims 16 to 18, the first configuration parameter is determined by network configuration information or pre-configuration information.

20. The second terminal device according to any one of claims 16 to 18, further comprising: The second determination module is used to determine whether the first terminal device is a terminal device without listening capability.

21. The second terminal device according to claim 20, wherein: The second determination module determines that the first terminal device is a terminal device without a listening capability by using at least one of the following methods: Determining, according to the information field in the SCI of the first terminal device, that the first terminal device is a terminal device without an intercept capability; Determining, according to the format of the SCI of the first terminal device, that the first terminal device is a terminal device without a listening capability; Determining, according to a scrambling code sequence for scrambling an SCI bit sequence of the first terminal device, that the first terminal device is a terminal device without an intercept capability; Determining that the first terminal device is a terminal device without a listening capability according to a demodulation reference signal DMRS sequence of a physical sideline control channel PSCCH or a physical sideline shared channel PSSCH of the first terminal device; When the PSCCH of the first terminal device is detected in the first time-frequency resource set configured in the resource pool, it is determined that the first terminal device is a terminal device without listening capability.

22. The second terminal device according to claim 21, wherein: The information field in the SCI of the first terminal device includes: The information field in the first-order SCI and / or the second-order SCI of the first terminal device.

23. The second terminal device according to claim 22, wherein: The format of the SCI includes a first format and a second format; The first format includes at least one of a first-order SCI format 1-A, a second-order SCI format 2-A, and a second-order SCI format 2-B.

24. A network device comprising: A first sending module, used to send configuration information to a second terminal device, where the configuration information is used to determine a first configuration parameter, where the first configuration parameter is used by the second terminal device to determine an RSRP threshold when performing resource selection, resource reselection, re-evaluation detection, or pre-emption detection; The first configuration parameter is used by the second terminal device to determine the RSRP threshold according to the first configuration parameter and the priority information carried in the SCI of the first terminal device, or the first configuration parameter is used by the second terminal device to determine the RSRP threshold according to the first configuration parameter, the priority information carried in the SCI of the first terminal device and the priority information of the second terminal device, The priority information carried in the SCI of the first terminal device includes a first priority, which is the lowest priority among the priority levels allowed by the resource pool for the first terminal device to perform sideline data transmission, or the lowest priority among all priorities corresponding to the sideline data. The first terminal device comprises a terminal device without a listening capability; The second terminal device includes a terminal device with a listening capability.

25. The network device according to claim 24, wherein: The first configuration parameter comprises a priority parameter.

26. The network device according to claim 24, wherein: The first configuration parameter includes an RSRP threshold.

27. A terminal device, comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 10.

28. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 11 to 13.

29. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 10.

30. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 11 to 13.

31. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 10.

32. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 11 to 13.

33. A computer program product comprising computer program instructions for causing a computer to execute the method as claimed in any one of claims 1 to 10.

34. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 11 to 13.

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