WO2022170478A1

WO2022170478A1 - Wireless communication method, terminal device and network device

Info

Publication number: WO2022170478A1
Application number: PCT/CN2021/076238
Authority: WO
Inventors: 赵振山; 张世昌; 林晖闵
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2022-08-18
Also published as: CN116420407A

Abstract

Provided in the embodiments of the present application are a wireless communication method, a terminal device and a network device. For a partial-sensing-based resource selection manner, where a pre-emption mechanism or a re-evaluation mechanism triggers a terminal device to re-perform resource selection, the terminal device can select a suitable transmission resource, thereby improving system performance. The wireless communication method comprises: a terminal device determining to perform resource reselection, wherein the resource reselection is performed regarding transmission resources selected by the terminal within a first slot set; and the terminal device determining whether to select a second slot set for determining a candidate resource set, wherein the second slot set is a slot set different from the first slot set.

Description

Method, terminal device and network device for wireless communication

technical field

The embodiments of the present application relate to the field of communications, and more particularly, to a wireless communication method, terminal device, and network device.

Background technique

In New Radio-Vehicle to Everything (NR-V2X), full or partial interception is supported. Among them, complete listening means that the terminal can listen to the data sent by other terminals in all time slots (or subframes) except the time slot in which the data is sent; and partial sensing (partial sensing) is for the terminal to save energy, and the terminal only needs to Part of the time slot (or subframe) is sensed, and resource selection is performed based on the result of the part of the sense. In addition, NR-V2X also supports resource pre-emption (pre-emption) mechanism and re-evaluation (re-evaluation) mechanism. However, for the resource selection method based on partial listening, the pre-emption mechanism or the re-evaluation mechanism may trigger the terminal device to re-select resources. In this case, it is difficult to select appropriate transmission resources, thus affecting normal data transmission. , which reduces system performance.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a wireless communication method, a terminal device, and a network device. For a resource selection method based on partial interception, in the case that the pre-emption mechanism or the re-evaluation mechanism triggers the terminal device to select resources again, The terminal device can select appropriate transmission resources, which improves the system performance.

In a first aspect, a method for wireless communication is provided, the method comprising:

The terminal device determines to perform resource reselection, wherein the resource reselection is to perform reselection for the transmission resources selected by the terminal in the first time slot set;

The terminal device determines whether to select a second time slot set for determining the candidate resource set, wherein the second time slot set is a time slot set different from the first time slot set.

In a second aspect, a method for wireless communication is provided, the method comprising:

The terminal device acquires configuration information, wherein the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception;

The terminal device listens according to the configuration information.

In a third aspect, a method for wireless communication is provided, the method comprising:

The network device sends configuration information to the terminal device, where the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception.

In a fourth aspect, a terminal device is provided for executing the method in the first aspect.

Specifically, the terminal device includes functional modules for executing the method in the first aspect.

In a fifth aspect, a terminal device is provided for executing the method in the second aspect.

Specifically, the terminal device includes a functional module for executing the method in the second aspect above.

In a sixth aspect, a network device is provided for executing the method in the third aspect.

Specifically, the network device includes functional modules for executing the method in the third aspect.

In a seventh aspect, a terminal device is provided, 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 in the first aspect.

In an eighth aspect, a terminal device is provided, 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 in the second aspect.

In a ninth aspect, a network device is provided, 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 in the third aspect.

In a tenth aspect, an apparatus is provided for implementing the method in any one of the above-mentioned first to third aspects.

Specifically, the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in any one of the above-mentioned first to third aspects.

In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method in any one of the above-mentioned first to third aspects.

A twelfth aspect provides a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the above-mentioned first to third aspects.

A thirteenth aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to third aspects.

Through the technical solution of the first aspect, when the terminal device determines to perform resource reselection, the terminal device determines whether to select the second time slot set used for determining the candidate resource set. Therefore, for the resource selection method based on partial listening , the terminal device can select appropriate transmission resources, which improves the system performance.

Through the technical solutions of the second aspect and the third aspect, the interception parameters are configured for the terminal that selects resources based on partial interception, that is, independent parameters are configured for the terminal that selects resources based on partial interception, thereby avoiding By triggering resource reselection, the terminal device can select appropriate transmission resources, which improves system performance.

Description of drawings

FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.

FIG. 2 is a schematic diagram of another communication system architecture to which an embodiment of the present application is applied.

FIG. 3 is a schematic diagram of inbound communication within a network coverage provided by the present application.

FIG. 4 is a schematic diagram of a partial network coverage sideline communication provided by the present application.

FIG. 5 is a schematic diagram of a network coverage outer row communication provided by the present application.

FIG. 6 is a schematic diagram of a unicast sideline communication provided by the present application.

FIG. 7 is a schematic diagram of a multicast sideline communication provided by the present application.

FIG. 8 is a schematic diagram of a broadcast sideline communication provided by the present application.

FIG. 9 is a schematic diagram of a side row feedback provided by the present application.

FIG. 10 is a schematic diagram of a sideline feedback resource provided by the present application.

FIG. 11 is a schematic diagram of resource selection based on interception provided by the present application.

FIG. 12 is a schematic diagram of a re-evaluation mechanism provided by the present application.

FIG. 13 is a schematic diagram of a resource preemption mechanism provided by the present application.

FIG. 14 is a schematic diagram of resource selection in a selection window provided by the present application.

FIG. 15 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.

FIG. 16 is a schematic diagram of a first time slot set and a second time slot set provided according to an embodiment of the present application.

FIG. 17 is a schematic diagram of a sideline feedback provided according to an embodiment of the present application.

FIG. 18 is a schematic flowchart of another method for wireless communication according to an embodiment of the present application.

FIG. 19 is a schematic flowchart of still another wireless communication method provided according to an embodiment of the present application.

FIG. 20 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

FIG. 21 is a schematic block diagram of another terminal device provided according to an embodiment of the present application.

FIG. 22 is a schematic block diagram of a network device provided according to an embodiment of the present application.

FIG. 23 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

FIG. 24 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

FIG. 25 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

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

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 communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber 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 (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, 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 clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment or base station (gNB) in the PLMN network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the description and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

In this embodiment of the present application, "predefinition" may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The implementation method is not limited. For example, predefined may refer to the definition in the protocol.

In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.

FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied. The transmission resources of the vehicle-mounted terminals (the vehicle-mounted terminal 121 and the vehicle-mounted terminal 122 ) are allocated by the base station 110 , and the vehicle-mounted terminal transmits data on the sidelink according to the resources allocated by the base station 110 . Specifically, the base station 110 may allocate resources for single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.

FIG. 2 is a schematic diagram of another communication system to which the embodiments of the present application are applicable. The vehicle-mounted terminals (the vehicle-mounted terminal 131 and the vehicle-mounted terminal 132 ) independently select transmission resources for data transmission on the resources of the side link. Optionally, the in-vehicle terminal may randomly select transmission resources, or select transmission resources by means of listening.

It should be noted that, in sideline communication, according to the network coverage of the communicating terminal, it can be divided into network coverage innerline communication, as shown in Figure 3; part of the network coverage sideline communication, as shown in Figure 4 ; and network coverage outside the line communication, as shown in Figure 5.

Figure 3: In the network coverage of the inbound communication, all the terminals performing the lateral communication are within the coverage of the same base station. Therefore, the above-mentioned terminals can receive the configuration signaling of the base station and perform the lateral communication based on the same lateral configuration. communication.

Figure 4: In the case of partial network coverage of sideline communication, some terminals performing sideline communication are located within the coverage of the base station. These terminals can receive the configuration signaling of the base station and perform sideline communication according to the configuration of the base station. The terminal outside the network coverage cannot receive the configuration signaling of the base station. In this case, the terminal outside the network coverage will use the pre-configuration information and the physical The information carried in the sideline broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) determines the sideline configuration and performs sideline communication.

Figure 5: For communication outside the network coverage, all the terminals performing the lateral communication are located outside the network coverage, and all the terminals determine the lateral configuration according to the pre-configuration information to perform the lateral communication.

It should be noted that device-to-device communication is based on a sidelink (Sidelink, SL) transmission technology based on device to device (D2D), and the communication data in the traditional cellular system is received or sent by the base station Different ways, so it has higher spectral efficiency and lower transmission delay. The Internet of Vehicles system adopts the method of terminal-to-terminal direct communication. Two transmission modes are defined in 3GPP, which are respectively recorded as the first mode and the second mode. The embodiments of the present application may be applied to the second mode.

The first mode: the transmission resources of the terminal are allocated by the base station, and the terminal transmits 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 can allocate semi-static transmission to the terminal Resources. As shown in FIG. 3 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sideline transmission to the terminal.

The second mode: the terminal selects a resource in the resource pool for data transmission. As shown in Figure 5, the terminal is located outside the coverage of the cell, and the terminal autonomously selects transmission resources from a preconfigured resource pool for sideline transmission; or, as shown in Figure 3, the terminal autonomously selects transmission resources from the resource pool configured by the network Perform side-by-side transfers.

In NR-V2X, automatic driving is supported, so higher requirements are placed on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, more Flexible resource allocation, etc.

In LTE-V2X, broadcast transmission is supported, and in NR-V2X, unicast and multicast transmissions are introduced. For unicast transmission, there is only one terminal at the receiving end. As shown in Figure 6, unicast transmission is performed between UE1 and UE2; for multicast transmission, the receiving end is all terminals in a communication group, or at a certain All terminals within the transmission distance, as shown in Figure 7, UE1, UE2, UE3 and UE4 form a communication group, in which UE1 sends data, and other terminal devices in this group are receiver terminals; The terminal is any terminal around the transmitting terminal. As shown in FIG. 8 , UE1 is the transmitting terminal, and other terminals around it, UE2-UE6, are all receiving terminals.

A resource pool is introduced into the sideline transmission system. The so-called resource pool is a collection of transmission resources. Whether it is a transmission resource configured by a network or a transmission resource independently selected by a terminal, it is a resource in the resource pool. Resource pools can be configured through pre-configuration or network configuration, and one or more resource pools can be configured. The resource pool is further divided into a sending resource pool and a receiving resource pool. The sending resource pool is that the transmission resources in the resource pool are used for sending sideline data; the receiving resource pool is that the terminal receives the sideline data on the transmission resources in the resource pool.

For better understanding of the embodiments of the present application, the sideline feedback channel related to the present application is described.

In NR-V2X, in order to improve reliability, a sideline feedback channel is introduced. For example, for unicast transmission, the sender terminal sends sideline data (including Physical Sidelink Control Channel (PSCCH) and Physical Sidelink Shared Channel (PSSCH)) to the receiver terminal, and receives The end terminal sends a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) feedback information to the transmitting end terminal, and the transmitting end terminal judges whether retransmission is required according to the feedback information of the receiving end terminal. The HARQ feedback information is carried in a sideline feedback channel, such as a physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH), as shown in FIG. 9 .

The sideline feedback can be activated or deactivated through pre-configuration information or network configuration information. If the sideline feedback is activated, the receiver terminal receives the sideline data sent by the sender terminal, and feeds back the HARQ positive response to the sender according to the detection result ( Acknowledgement, ACK) or negative acknowledgement (Negative Acknowledgement, NACK), the sender terminal decides to send retransmission data or new data according to the feedback information of the receiver; if the sideline feedback is deactivated, the receiver terminal does not need to send feedback information, the sender The terminal usually transmits data by means of blind retransmission. For example, the terminal at the transmitting end repeatedly transmits K times of data on each sideline, instead of determining whether to transmit the retransmitted data according to the feedback information of the terminal at the receiving end.

For better understanding of the embodiments of the present application, the resources of the sideline feedback channel related to the present application are described.

In order to reduce the overhead of the PSFCH channel, a time slot defined in every N time slots includes PSFCH transmission resources, that is, the cycle of the sideline feedback resources is N time slots, where N=0, 1, 2, 4, and the parameter N It is pre-configured or configured by the network. When N=0, it means that the resource pool is not configured with feedback resources, that is, sideline feedback is not supported. The schematic diagram of N=4 is shown in FIG. 10 .

Among them, the feedback information of PSSCH transmitted in time slots 2, 3, 4, and 5 is all transmitted in time slot 7, so time slots {2, 3, 4, 5} can be regarded as a time slot set, For the PSSCH transmitted in the time slot set, the corresponding PSFCH is in the same time slot.

The transmitter terminal sends PSCCH/PSSCH in time slot n, and the receiver sends PSFCH in the first available time slot after time slot n+k, where k is a configuration parameter, k=2 or k=3; for example, in Figure 10 , the network configuration k=2, the transmitting end terminal sends PSCCH/PSSCH in time slot 4, and the receiving end terminal transmits PSFCH in the first available time slot after time slot 6, that is, time slot 7.

To facilitate a better understanding of the embodiments of the present application, a method for selecting resources based on interception related to the present application is described.

In LTE-V2X, full listening or partial listening is supported, wherein, full listening means that the terminal can listen to the data sent by other terminals in all time slots (or subframes) except the time slot in which data is sent; and Partial sensing (partial sensing) is to save energy for the terminal. The terminal only needs to listen to a part of the time slot (or subframe), and selects resources based on the result of the partial sensing.

Specifically, when the upper layer does not configure partial interception, the resource selection is performed by default in a complete interception manner.

When a new data packet arrives at time n, resource selection needs to be performed. The terminal will select resources within [n+T ₁ ,n+T ₂ ]ms according to the listening results in the past 1 second, where T ₁ <=4; T _2min (prio _TX )≤T ₂ ≤100, T _2min (prio _TX ) is a parameter configured by the upper layer, and the selection of T ₁ should be greater than the processing delay of the terminal, and the selection of T ₂ needs to be in the service delay Within the required range, for example, if the service delay requirement is 50ms, then 20≤T ₂ ≤50, and if the service delay requirement is 100ms, then 20≤T ₂ ≤100, as shown in FIG. 11 .

The process of resource selection by the terminal in the selection window is as follows: (For the specific resource selection process, please refer to the operation steps described in the above standard, and here are several main resource selection steps)

1. The terminal will select all available resources in the window as a set A.

2. If the terminal has no listening result in some subframes in the listening window, the resources on the subframes corresponding to these subframes in the selection window are excluded.

3. If a physical sidelink control channel (PSCCH) is detected in the terminal listening window, measure the reference signal received power (Reference Signal) of the physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) scheduled by the PSCCH. Received Power, RSRP), if the measured PSSCH-RSRP is higher than the PSSCH-RSRP threshold, and the reserved transmission resources determined according to the reservation information in the control information have a resource conflict with the data to be sent by the user, then the user is in the The resource is excluded from set A. The selection of the PSSCH-RSRP threshold is determined by the priority information carried in the detected PSCCH and the priority of the data to be transmitted by the terminal.

4. If the number of remaining resources in set A is less than 20% of the total number of resources, the terminal will increase the PSSCH-RSRP threshold by 3dB, and repeat steps 1-3 until the number of remaining resources in set A is greater than 20% of the total number of resources. 20%.

5. The terminal performs Sidelink Received Signal Strength Indicator (S-RSSI) detection on the remaining resources in the set A, and sorts them according to the energy level. The 20% with the lowest energy (relative to the resources in the set A) number) resources are put into set B.

6. The terminal selects a resource from set B with moderate probability for data transmission.

Compared with the full listening method, the terminal based on partial listening selects Y time slots in the resource selection window, and judges whether the resources on the Y time slots can be used as candidate resources according to the listening result, and if so, put them in the set. In S _B , if the number of elements in the set S _B is greater than or equal to 20% of the total number of resources in the Y time slots, report S _B to the upper layer.

To facilitate a better understanding of the embodiments of the present application, the resource pre-emption (pre-emption) and re-evaluation (re-evaluation) mechanisms related to the present application are described.

In LTE-V2X, when a terminal selects transmission resources, it will send data on these resources. However, there may be two terminals that select the same transmission resources. At this time, resource conflicts will occur and system performance will be reduced. In order to solve this problem , The resource pre-emption and re-evaluation mechanisms are introduced in NR-V2X, so that the terminal can judge whether there is a resource conflict with other terminals before using the selected resource. If there is no conflict, it can continue to use If there is a resource conflict in the selected transmission resource, avoidance and resource reselection need to be performed according to the corresponding mechanism to avoid resource conflict.

NR-V2X supports a re-evaluation mechanism. After the terminal completes resource selection, resources that have been selected but not indicated by sending sideline control information may still be reserved by other terminals with burst aperiodic services, resulting in resource collision. In response to this problem, a re-evaluation mechanism is proposed, that is, the terminal continues to listen to the sideline control information after completing the resource selection, and re-evaluates the selected but not indicated resources at least once.

As shown in FIG. 12 , resources w, x, y, z, and v are time-frequency resources that have been selected by the terminal, and resource x is located in time slot m. For the resources y and z that the terminal will send the sideline control information for the first time in resource x (resource x has been indicated by the sideline control information in resource w before). The terminal performs resource listening at least once in time slot _mT3 , that is, determines a resource selection window and a listening window, and excludes 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 terminal reselects the time-frequency resources in resources y and z that are not in the candidate resource set, and can also reselect any resource that has been selected but not indicated by sending sideline control information, for example Any number of resources y, z, and v. _The above T3 depends on the processing capability of the terminal.

NR-V2X supports a resource preemption (pre-emption) mechanism, that is, a resource preemption mechanism. In NR-V2X, the conclusions about the pre-emption mechanism are all described from the perspective of the preempted terminal. After completing the resource selection, the terminal still continues to listen to the sideline control information. If the time-frequency resource that has been selected and indicated by sending the sideline control information meets the following three conditions, resource reselection is triggered:

Condition 1, the resources reserved in the detected sideline control information overlap with the resources selected and indicated by the terminal, including full overlap and partial overlap;

Condition 2, the reference signal received power (Reference Signal Received Power, RSRP) of the PSCCH corresponding to the sideline control information detected by the terminal or the RSRP of the PSSCH scheduled by the PSCCH is greater than the sideline RSRP threshold;

Condition 3, the priority carried in the detected sideline control information is higher than the priority of the data to be sent by the terminal.

As shown in FIG. 13 , resources w, x, y, z, and v are time-frequency resources that have been selected by the terminal, and resource x is located in time slot m. For the resources x and y indicated by the sideline control information that the terminal is about to send in the time slot m and which have been indicated by the sideline control information sent by the terminal before. The terminal performs resource listening at least once in time slot _mT3 to determine a candidate resource set. If the resource x or y is not in the candidate resource set (satisfying the above conditions 1 and 2), further judge whether the resource x or y is not in the candidate resource set due to the indication of the sideline control information carrying the high priority (satisfying the above condition 3) ), if yes, the terminal performs resource re-selection, and re-selects the time-frequency resources in x and y that satisfy the above three conditions.

For the resource selection method based on partial listening, the terminal selects Y time slots in the selection window, and selects transmission resources on the Y time slots according to the listening result (as shown in Fig. 14 ). Before m uses the third resource, the terminal needs to perform re-evaluation or pre-emption detection. If it is found that the resource is not in the candidate resource set, the terminal needs to re-select the resource, but at this time, the selected Y items after time m are included. The number of time slots in the time slot is very small, and it is difficult to select suitable transmission resources in the remaining time slots, or the number of elements in the candidate resource set determined in the remaining time slots is the same as the number of elements in the remaining time slots. If the ratio of the total number is less than X%, how should the terminal select resources at this time? Wherein, X% is a resource pool configuration parameter, for example, X=20.

Based on the above problems, the present application proposes a resource selection scheme. For a terminal that performs resource selection based on partial interception, the resource selection method can be optimized, thereby avoiding re-evaluation or pre-emption detection to trigger resource reselection.

The technical solutions of the present application are described in detail below through specific embodiments.

FIG. 15 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application. As shown in FIG. 15 , the method 200 may include at least part of the following contents:

S210, the terminal device determines to perform resource reselection, wherein the resource reselection is to perform reselection for the transmission resources selected by the terminal in the first time slot set;

S220, the terminal device determines whether to select a second time slot set for determining the candidate resource set, where the second time slot set is a time slot set different from the first time slot set.

In the embodiment of the present application, when the terminal device determines to perform resource reselection, the terminal device determines whether to select the second time slot set for determining the candidate resource set, so that the terminal device can select appropriate transmission resources, which improves the system performance.

In this embodiment of the present application, the terminal device may be a terminal that performs resource selection based on partial interception.

The time slots described in the embodiments of the present application may also be other time units, such as frames, subframes, symbols, etc., which are not limited in the present application.

In some embodiments, the resource selection window [n+T1, n+T2] corresponding to the terminal device when determining the first time slot set may be different from the resource selection window when determining that the second time slot set needs to be selected for resource reselection. are of different sizes and/or different locations, and of course, may also be the same resource selection window, which is not limited in this embodiment of the present application.

Among them, the selection of the selection window [n+T1, n+T2] is based on the terminal implementation, T1 is less than the processing delay of the terminal, and T2 is less than the packet delay budget (packet delay budget, PDB) of the service.

In some embodiments, the above S210 may specifically include:

The terminal device determines to perform resource reselection according to the detection result of resource pre-emption (pre-emption) or re-evaluation (re-evaluation) at the first time. For example, as shown in Figure 14 above, before using the third resource at time m, the terminal device needs to perform re-evaluation or pre-emption detection. If it is found that the third resource is not in the candidate resource set, the terminal device needs to re-evaluate the resource Select. For example, when the terminal device judges whether the third resource at time m is available and whether resource selection is required, it is judged at the time m-T3, which is determined according to the processing delay of the terminal; and the time m-T3 may be does not belong to the first time slot set.

In some embodiments, when the terminal device selects resources at time slot n, it selects Y time slots within the selection window [n+T1, n+T2] as the first time slot set, and selects Y time slots in the first time slot set according to the listening result. Transmission resources are selected in each time slot. When the terminal performs re-evaluation or pre-emption detection at time m and determines that resource re-selection is required, the terminal device may determine to select a second time slot set, which is in the second time slot set. The time-domain location where the time slot is located is less than or equal to the packet delay budget (PDB). The terminal device may use the remaining time slots after time m (or time m-T3) in the first time slot set together with the time slots in the second time slot set as a candidate time slot set, and perform resource processing in the candidate time slot set. Select. For example, as shown in FIG. 16 , the terminal device selects the second time slot set Y1 within the resource selection window [n+T1, n+T2], and how to select the Y1 time slots depends on the terminal implementation. After a time slot set Y, a second time slot set Y1 is selected. At this time, when the terminal device determines that resource selection needs to be performed at time m, the candidate time slot set includes all the first time slot set Y and the second time slot set after time m. The time slot of the time slot set Y1, the terminal device can determine the candidate transmission resource set in the candidate time slot set.

In some embodiments, at least one of the number of time slots included in the second time slot set, the distribution manner (continuous or non-consecutive), the smallest time slot, and the largest time slot are pre-configured or configured by the network device of.

In some embodiments, when the terminal device determines to select the second time slot set, the time domain positions where the time slots in the second time slot set are located are less than or equal to the PDB or the remaining PDBs.

In some embodiments, the above S220 may specifically include:

The terminal device determines whether to select the second time slot set according to the first information;

Wherein, the first information includes but is not limited to at least one of the following:

The number of time slots remaining in the first set of time slots after the first time;

for determining the RSRP threshold value of the candidate resource set;

The number of resources included in the candidate resource set;

the number of transmissions remaining after the first time;

priority;

Whether the resource pool allows periodic reservation of transmission resources.

In this embodiment of the present application, the first time may be the time for determining resource reselection or resource selection.

In some embodiments, the network device configures or preconfigures the corresponding relationship between the priority and the threshold value, the terminal device may determine the corresponding threshold value according to the priority of the current data, and then according to various parameters of the first information and The comparison result of the threshold values determines whether the second set of time slots needs to be selected.

Example 1, the above S220 may specifically include:

The terminal device may determine whether to select the second time slot set according to the number of time slots remaining in the first time slot set after the first time. That is, Example 1 can be regarded as the above-mentioned first information including the number of remaining time slots of the first time slot set after the first time.

In some alternative implementations of Example 1,

In the case that the number of remaining time slots in the first time slot set after the first time is less than the first threshold value, the terminal device determines to select the second time slot set; otherwise, the terminal device determines not to select the first time slot set Two-slot set.

In some alternative implementations of Example 1,

In the case that the number of remaining time slots in the first time slot set after the first time is greater than or equal to the first threshold value, the terminal device determines not to select the second time slot set; otherwise, the terminal device determines to select the second set of time slots.

In some implementations of Example 1, the first threshold value may be determined according to priority. In this case, Example 1 can be regarded as the above-mentioned first information including the number and priority of the remaining time slots of the first time slot set after the first time.

In Example 1, for example, when the terminal device selects resources in time slot n, it selects Y time slots in the selection window [n+T1, n+T2] as the first time slot set, and selects Y time slots as the first time slot set in the selection window [n+T1,n+T2] Selecting transmission resources in Y time slots, when the terminal device performs re-evaluation or pre-emption detection at time m and judges that resource reselection is required, if the number of time slots in the first time slot set after time m is the number of time slots in the first time slot set is less than the first threshold value, or the number of time slots in the first time slot set within the resource selection window determined by the terminal device at time m is less than the first threshold value, the terminal device determines to select the second time slot set. The time domain positions where the time slots in the second time slot set are located are less than or equal to the packet delay budget (PDB). The terminal device uses the remaining time slots in the first time slot set and the time slots in the second time slot set as candidate time slot sets after time m, and performs resource selection in the candidate time slot set.

Example 2, the above S220 may specifically include:

The terminal device determines whether to select the second time slot set according to the ratio of the number of time slots remaining in the first time slot set after the first time to the number of all time slots in the first time slot set. That is, Example 2 can be regarded as the above-mentioned first information including the number of remaining time slots of the first time slot set after the first time.

In some alternative implementations of Example 2,

When the ratio of the number of time slots remaining in the first time slot set after the first time to the number of all time slots in the first time slot set is less than the second threshold value, the terminal device determines to select the first time slot set. Two sets of time slots; otherwise, the terminal device determines not to select the second set of time slots.

In some alternative implementations of Example 2,

In the case that the ratio of the number of remaining time slots in the first time slot set after the first time to the number of all time slots in the first time slot set is greater than or equal to the second threshold value, the terminal device determines not to Select the second time slot set; otherwise, the terminal device determines to select the second time slot set.

In some implementations of Example 2, the second threshold value may be determined according to priority. In this case, Example 2 can be regarded as the above-mentioned first information including the number and priority of the remaining time slots of the first time slot set after the first time.

In example 2, for example, when the terminal device selects resources in time slot n, it selects Y time slots within the selection window [n+T1, n+T2] as the first time slot set, and selects Y time slots in the selection window [n+T1, n+T2] as the first time slot set, Selecting transmission resources in Y time slots, when the terminal device performs re-evaluation or pre-emption detection at time m and judges that resource reselection is required, if the number of time slots in the first time slot set after time m is the number of time slots in the first time slot set If the ratio of K to Y is smaller than the second threshold value, the terminal device determines to select the second time slot set, and the time domain positions of the time slots in the second time slot set are less than or equal to the PDB. The terminal device uses the remaining time slots in the first time slot set and the time slots in the second time slot set as candidate time slot sets after time m, and performs resource selection in the candidate time slot set.

Example 3, the above S220 may specifically include:

The terminal device determines whether to select the second time slot set according to the RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time. That is, Example 3 can be regarded as the above-mentioned first information including the RSRP threshold value for determining the candidate resource set.

In some alternative implementations of Example 3,

In the case that the RSRP threshold determined in the process of determining the candidate resource set in the remaining time slots after the first time in the first time slot set is greater than the third threshold, the terminal device determines to select the second time slot slot set; otherwise, the terminal device determines not to select the second slot set.

In some alternative implementations of Example 3,

In the case that the RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set is less than or equal to the third threshold value, the terminal device determines not to select the candidate resource set The second time slot set; otherwise, the terminal device determines to select the second time slot set.

In some implementations of Example 3, the third threshold value may be determined according to priority. In this case, Example 3 can be regarded as the above-mentioned first information including the RSRP threshold value and the priority for determining the candidate resource set.

In Example 3, for example, when the terminal device selects resources in time slot n, it selects Y time slots within the selection window [n+T1, n+T2] as the first time slot set, and selects Y time slots as the first time slot set according to the listening result Selecting transmission resources in Y time slots, when the terminal device performs re-evaluation or pre-emption detection at time m and judges that resource reselection is required, if the number of time slots in the first time slot set after time m is the number of time slots in the first time slot set is K, then the terminal device determines the candidate resource set according to the listening results on the K time slots, and in the process of determining the candidate resource set, the terminal device measures the detected sidelink control information (Sidelink Control Information, SCI). The RSRP threshold of the PSCCH carrying the SCI or the RSRP threshold of the PSSCH scheduled by the SCI, and compared with the RSRP threshold, and then determine the candidate resource set, if the number of elements in the candidate resource set is equal to the total number of resources in the K time slots If the ratio is less than the parameter X% (for example, 20%), the terminal device increases the RSRP threshold by 3 decibels (dB), and redo the process of determining the candidate resource set. During this process, if the RSRP threshold exceeds the third threshold, at this time It is considered that the RSRP threshold value is very high, and the interference on the transmission resources in the candidate resource set determined based on the RSRP threshold value is very strong. At this time, the terminal device determines to select the second time slot set Y1, thereby increasing the number of available transmission resources. number.

Example 4, the above S220 may specifically include:

The terminal device determines whether to select the candidate resource set according to the RSRP threshold value and the number of resources included in the candidate resource set determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time. The second set of time slots. That is, Example 4 can be regarded as the above-mentioned first information including the RSRP threshold for determining the candidate resource set and the number of resources included in the candidate resource set.

In some alternative implementations of Example 4,

The RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time is greater than the fourth threshold value, and the number of resources included in the candidate resource set is less than the fourth threshold value. In the case of five threshold values, the terminal device determines to select the second time slot set; otherwise, the terminal device determines not to select the second time slot set.

In some alternative implementations of Example 4,

The RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time is less than or equal to the fourth threshold value, and the number of resources included in the candidate resource set When the value is greater than or equal to the fifth threshold value, the terminal device determines not to select the second time slot set; otherwise, the terminal device determines to select the second time slot set.

In some implementations of Example 4, the fourth threshold value and/or the fifth threshold value may be determined according to priority. In this case, Example 4 can be regarded as the above-mentioned first information including the RSRP threshold value for determining the candidate resource set, the number and priority of resources included in the candidate resource set.

In Example 4, for example, when the terminal device selects resources in time slot n, it selects Y time slots in the selection window [n+T1, n+T2] as the first time slot set, and selects Y time slots as the first time slot set according to the listening result. Selecting transmission resources in Y time slots, when the terminal device performs re-evaluation or pre-emption detection at time m and judges that resource reselection is required, if the number of time slots in the first time slot set after time m is the number of time slots in the first time slot set is K, the terminal device determines the candidate resource set according to the listening results on the K time slots, and in the process of determining the candidate resource set, the terminal device measures the RSRP threshold of the PSCCH carrying the SCI or the RSRP threshold according to the detected SCI. The RSRP threshold of the PSSCH scheduled by the SCI is compared with the RSRP threshold, and then the candidate resource set is determined. If the number of elements in the candidate resource set is less than the parameter X% (for example, 20%), the terminal equipment increases the RSRP threshold by 3dB, Perform the process of determining the candidate resource set, in this process, if the RSRP threshold exceeds the fourth threshold value, the number of resources included in the determined candidate resource set is less than the fifth threshold value, or, in the determined candidate resource set The ratio of the number of included resources to the total number of transmission resources in the K time slots is less than the seventh threshold value, at this time, it is considered that the number of resources included in the candidate resource set is small, and the terminal device determines to select the second time slot set Y1, thereby Increase the number of available transmission resources. Optionally, the seventh threshold value is equal to X%.

Example 5, the above S220 may specifically include:

The terminal device determines whether to select the second time slot set according to the number of remaining transmissions after the first time and the number of time slots remaining in the first time slot set after the first time. That is, Example 5 can be regarded as the above-mentioned first information including the number of transmissions remaining after the first time and the number of time slots remaining after the first time.

In some alternative implementations of Example 5,

In the case where the number of transmissions remaining after the first time is greater than the number of time slots remaining in the first set of time slots after the first time, or, between the number of transmissions remaining after the first time and adjacent transmissions When the product of the minimum time slot interval is greater than the number of time slots remaining in the first time slot set after the first time, the terminal device determines to select the second time slot set; otherwise, the terminal device determines not to select the second time slot set The second set of time slots.

In some alternative implementations of Example 5,

In the case that the maximum number of transmissions on the sideline remaining after the first time is less than or equal to the number of time slots remaining in the first set of time slots after the first time, or, the maximum number of sidelines remaining after the first time When the product of the number of transmissions and the minimum time slot interval between adjacent transmissions is less than or equal to the number of time slots remaining in the first time slot set after the first time, the terminal device determines not to select the second time slot set; otherwise, the terminal device determines to select the second set of time slots.

In Example 5, for example, the maximum number of transmissions of sideline data is N times, such as N=32, if the terminal device transmits sideline data without activating sideline feedback, the terminal device can transmit sideline data in each time slot, When the terminal device performs resource reselection at time m, if the number of time slots in the first time slot set after time m is K, and the maximum number of transmissions remaining by the terminal device is greater than K, the terminal device determines to select the second time slot set. time slot set, otherwise it may not be necessary to select the second time slot set.

In Example 5, for another example, if the terminal device activates the sideline feedback during the sideline transmission, as shown in FIG. 17, the terminal device sends data at the Mth time and receives the sideline feedback PSFCH sent by the receiving end device. If is NACK, then the terminal device performs the M+1th transmission, and the minimum slot interval between the Mth and M+1th transmissions is T, then when the terminal device performs resource reselection at time m, if After time m, the number of time slots belonging to the first time slot set is K, and the maximum number of transmissions remaining by the terminal device is Q. When Q*T>K, the terminal device determines to select the second time slot set, otherwise it can There is no need to select the second set of time slots.

Example 6, the above S220 may specifically include:

The terminal device determines whether to select the second time slot set according to the priority. That is, Example 6 can be regarded as the above-mentioned first information including the priority.

In some optional implementation manners of Example 6, in the case that the priority value corresponding to the data to be transmitted is smaller than the sixth threshold value, the terminal device determines to select the second time slot set; otherwise, the terminal device determines The second set of time slots is not selected.

In some optional implementation manners of Example 6, when the priority value corresponding to the data to be transmitted is greater than or equal to the sixth threshold value, the terminal device determines not to select the second time slot set; otherwise, the terminal device determines not to select the second time slot set; The terminal device determines to select the second time slot set.

In Example 6, for example, if the priority value corresponding to the data to be transmitted by the terminal device is P, when the priority value is less than the sixth threshold value, the terminal device determines to select the second time slot set, otherwise the terminal device does not A second set of time slots is selected. The lower the priority value is, the higher the priority level is. For example, the value range of the priority is [0,7], where a value of 0 indicates the highest priority, and a value of 7 indicates the lowest priority.

Example 7, the above S220 may specifically include:

The terminal device determines whether to select the second time slot set according to whether the resource pool allows periodic reservation of transmission resources. That is, Example 7 can be regarded as the above-mentioned first information including whether the resource pool allows periodic reservation of transmission resources.

In some optional implementation manners of Example 7, if the resource pool does not allow periodic reservation of transmission resources, the terminal device determines to select the second time slot set; otherwise, the terminal device determines not to select the second set of time slots A collection of time slots.

In some optional implementation manners of Example 7, when the resource pool allows periodic reservation of transmission resources, the terminal device determines not to select the second time slot set; otherwise, the terminal device determines to select the second time slot set gap set.

In some embodiments, some or all of the above-mentioned first threshold value to seventh threshold value are pre-configured or network-configured.

Therefore, in this embodiment of the present application, when the terminal device determines to perform resource reselection, the terminal device determines whether to select the second time slot set used for determining the candidate resource set. Therefore, for the resource selection method based on partial listening , the terminal device can select appropriate transmission resources, which improves the system performance.

FIG. 18 is a schematic flowchart of a method 300 for wireless communication according to an embodiment of the present application. As shown in FIG. 18 , the method 300 may include at least part of the following contents:

S310, the terminal device acquires configuration information, where the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception;

S320, the terminal device performs interception according to the configuration information.

In the embodiment of the present application, by configuring independent parameters for the terminal that performs resource selection based on partial interception, it is possible to avoid triggering resource reselection, and the terminal device can select appropriate transmission resources, thereby improving system performance. For example, to prevent the terminal device from triggering resource reselection during re-evaluation or pre-emption detection.

In some embodiments, the above S320 may specifically include:

The terminal device may determine, according to the configuration information, that the terminal device does not perform resource pre-emption (pre-emption) or re-evaluation (re-evaluation) detection.

In some embodiments, the configuration information is applicable to both the terminal performing resource selection based on partial listening and the terminal performing resource selection based on full listening.

For example, for a terminal that performs resource selection based on partial interception, the configuration information may configure that it does not support re-evaluation and/or pre-emption detection.

For example, as shown in Figure 14 above, for a terminal based on partial listening, when the terminal device selects resources at time n, the terminal device selects Y time slots in the selection window, and according to the detection of the listening window before time n Listen to the result to select resources. Before the terminal device uses the selected transmission resource, the terminal device needs to perform re-evaluation or pre-emption detection. If the selected transmission resource is found to conflict with other terminals, or the selected transmission resource is not in the candidate resource. In the set, the terminal device needs to perform resource reselection. However, if the terminal that selects resources based on partial interception does not support re-evaluation or pre-emption detection, after the terminal device selects transmission resources, it will not perform re-evaluation or pre-emption detection, and will not perform re-evaluation or pre-emption detection. lead to resource reselection.

In some embodiments, the configuration information is resource pool configuration information, and the configuration information includes indication information, where the indication information is used to indicate that a terminal performing resource selection based on partial listening does not support resource preemption or re-evaluation detection.

In some embodiments, the configuration information is resource pool configuration information, and a target parameter is configured in the configuration information, and the value of the target parameter corresponds to the highest priority.

It should be noted that the value of the target parameter corresponds to the highest priority, that is, the terminal using the target parameter for partial listening uses the target parameter to listen, that is, when the target parameter is used in the listening process, it corresponds to the use of the target parameter. the corresponding highest level. Wherein, the highest priority represents the highest priority of the sideline data in the sideline transmission, or the highest priority among the priority levels allowed by the current resource pool.

In some embodiments, the target parameter is a side row resource preemption enable (sl-PreemptionEnable) parameter in the resource pool configuration information.

It should be noted that sl-PreemptionEnable is used to indicate whether the pre-emption mechanism in the resource pool is enabled. Wherein, if the pre-emption mechanism in the resource pool is enabled, optionally, the pre-emption priority Ppre can be configured. If the pre-emption mechanism in the resource pool is enabled and the pre-emption priority Ppre is not configured, pre-emption can be applied to each priority.

sl-PreemptionEnable may include, for example: enabled, p11, p12, p13, p14, p15, p16, p17, p18.

For example, the parameter sl-PreemptionEnable is configured in the resource pool configuration information, and the parameter is set to 'enabled'. At this time, the priority value of the terminal that performs partial listening is set to the lowest value (that is, corresponding to the highest priority). At this time The resources selected by the terminal will not be pre-empted by other terminal resources, and thus will not trigger the terminal to perform resource reselection.

For another example, the parameter sl-PreemptionEnable is configured in the resource pool configuration information, and the value Ppre corresponding to this parameter is set to the lowest value (that is, corresponding to the highest priority). The resource will not be pre-empted by other terminal resources, and will not trigger the terminal to perform resource reselection.

In some embodiments, a terminal that performs resource selection based on partial interception may be configured through preconfiguration information or network configuration information to not support re-evaluation and/or pre-emption detection.

In some embodiments, the configuration information includes a first information field for configuring a first parameter for a terminal that performs resource selection based on partial listening, and a first information field for configuring the first parameter for a terminal that performs resource selection based on full listening The second information field.

In some embodiments, the first parameter includes one of the following:

The maximum number of sideline transmissions, the maximum number of sideline retransmissions, and the sideline transmission percentage (sl-TxPercentage) in the resource pool configuration information.

It should be noted that the maximum number of transmissions of a sideline represents the maximum number of transmissions of a sideline data block; the maximum number of retransmissions of a sideline represents the maximum number of retransmissions of a sideline data block; the resource pool configuration parameter sl-TxPercentage can also be called is the ratio of the candidate single-slot resources to the total resources, and the value of this parameter can be {20%, 35%, 50%}, that is, in the process of determining the candidate resource set, the number of resources in the candidate resource set and the time slot The ratio of the total number of resources in the collection.

For example, the first parameter is the maximum number of transfers for the side row. The maximum number of sideline transmissions for a terminal configuration based on full listening is 10, and the maximum number of transmissions for a sideline configured for a terminal based on partial listening is 2. For a terminal based on partial listening, in the first time slot set Among the included Y time slots, it is easy to find 2 time slots for data transmission, and there is no need to reselect the second time slot set Y1 as in the solution in the above-mentioned wireless communication method 200 .

For another example, the first parameter is the ratio of the number of candidate single-slot resources to the total number of resources (ie, sl-TxPercentage). The ratio is 50% for the terminal configuration based on full interception and 20% for the terminal configuration based on partial interception. For the terminal based on partial interception, when re-evaluation or pre-emption detection is performed at time m, And when it is judged that resource reselection is required, if the number of time slots belonging to the first time slot set after time m is K, the terminal device determines the candidate resource set according to the listening result on the K time slots, and then determines the candidate resource set. In the process of resource collection, if the ratio of the number of resources in the candidate resource set to the total number of resources in the K time slots is greater than or equal to 20%, the terminal device can report the candidate resource set to the upper layer, without the need to meet the requirements of greater than or equal to 50. %, therefore, the terminal device can more easily determine the candidate resource set.

In some embodiments, the listening parameter configured in the configuration information is that a terminal performing resource selection based on partial listening does not need to satisfy the sideline transmission percentage in the resource pool configuration information ( sl-TxPercentage).

Optionally, when the terminal performs re-evaluation or pre-emption detection to determine the candidate resource set, if the RSRP threshold value exceeds the target threshold value, the terminal does not need to meet the restriction of the parameter s1-TxPercentage, and the candidate resource set is set. Report to senior management.

In some embodiments, the aforementioned target thresholds may be pre-configured or network-configured.

For example, when the terminal device performs re-evaluation or pre-emption detection to determine the candidate resource set, if the number of resources in the candidate resource set and the total number of resources in the time slot set are less than sl-TxPercentage, the terminal will increase The RSRP threshold value is 3dB, and the candidate resource set is re-determined. However, when the RSRP threshold value exceeds the target threshold value, it can be considered that the interference of the transmission resources in the candidate resource set is very high. Even if the RSRP threshold value is increased, only the More serious interference is caused. Therefore, although the number of resources in the candidate resource set and the total number of resources in the time slot set are less than sl-TxPercentage, the terminal can still report the candidate resource set to the upper layer.

In some embodiments, the configuration information is pre-configured or agreed in a protocol, or the configuration information is configured by a network device.

In some embodiments, the physical layer of the terminal device sends indication information a to a higher layer, where the indication information a is used to determine that the number of resources in the reported candidate resource set and the total number of resources in the time slot set are less than sl-TxPercentage. Therefore, the terminal device can accurately know the relevant information of the candidate resource set, and then select an appropriate resource.

Therefore, in this embodiment of the present application, the listening parameters are configured for the terminal that performs resource selection based on partial listening, that is, by configuring independent parameters for the terminal that performs resource selection based on partial listening, it is possible to avoid triggering resource reselection. , the terminal device can select appropriate transmission resources, which improves the system performance.

The terminal-side embodiment of the present application is described in detail above with reference to FIG. 18 , and the network-side embodiment of the present application is described in detail below with reference to FIG. 19 . It should be understood that the network-side embodiment and the terminal-side embodiment correspond to each other, and similar descriptions Refer to the terminal side embodiment.

FIG. 19 is a schematic flowchart of a method 400 for wireless communication according to an embodiment of the present application. As shown in FIG. 19 , the method 400 may include at least part of the following contents:

S410: The network device sends configuration information to the terminal device, where the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception.

In some embodiments, the configuration information is used by the terminal device to determine that it does not perform resource preemption or re-evaluation detection.

In some embodiments, the first parameter includes one of the following:

In some embodiments, the listening parameter is that the terminal performing resource selection based on partial listening does not need to satisfy the sideline transmission percentage (sl-TxPercentage) in the resource pool configuration information during resource preemption or re-evaluation detection.

The method embodiments of the present application are described in detail above with reference to FIGS. 15 to 19 , and the device embodiments of the present application are described in detail below with reference to FIGS. 20 to 25 . It should be understood that the device embodiments and the method embodiments correspond to each other, and are similar to For the description, refer to the method embodiment.

FIG. 20 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application. As shown in Figure 20, the terminal device 500 includes:

a processing unit 510, configured to determine to perform resource reselection, wherein the resource reselection is to perform reselection for the transmission resource selected by the terminal in the first time slot set;

The processing unit 510 is further configured to determine whether to select a second time slot set for determining the candidate resource set, where the second time slot set is a time slot set different from the first time slot set.

In some embodiments, the processing unit 510 is specifically used for:

Determine whether to select the second time slot set according to the first information;

Wherein, the first information includes at least one of the following:

The number of remaining time slots in the first time slot set after the first time, the first time being the time for determining resource reselection or resource selection;

a reference signal received power RSRP threshold for determining the candidate resource set;

The number of resources included in the candidate resource set;

The number of transmissions remaining after the first time, where the first time is the time for determining resource reselection or resource selection;

priority;

In some embodiments, the processing unit 510 is specifically used for:

Whether to select the second time slot set is determined according to the number of remaining time slots in the first time slot set after the first time, the first time being the time for determining resource reselection or resource selection.

In some embodiments, the processing unit 510 is specifically used for:

In the case that the number of remaining time slots in the first time slot set after the first time is less than the first threshold value, determine to select the second time slot set;

or,

In the case that the number of remaining time slots in the first time slot set after the first time is greater than or equal to the first threshold value, it is determined that the second time slot set is not selected.

In some embodiments, the processing unit 510 is specifically used for:

According to the ratio of the number of remaining time slots in the first time slot set after the first time to the number of all time slots in the first time slot set, it is determined whether to select the second time slot set, and the first time is the determination process. Time for resource reselection or resource selection.

In some embodiments, the processing unit 510 is specifically used for:

In the case that the ratio of the number of remaining time slots in the first time slot set after the first time to the number of all time slots in the first time slot set is smaller than the second threshold value, determine to select the second time slot gather;

or,

In the case that the ratio of the number of remaining time slots in the first time slot set after the first time to the number of all time slots in the first time slot set is greater than or equal to the second threshold value, it is determined not to select the first time slot set. Two-slot set.

In some embodiments, the processing unit 510 is specifically used for:

According to the RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time, it is determined whether to select the second time slot set, and the first time is the determination process. Time for resource reselection or resource selection.

In some embodiments, the processing unit 510 is specifically used for:

In the case that the RSRP threshold value determined in the process of determining the candidate resource set in the time slots remaining after the first time in the first time slot set is greater than the third threshold value, determine to select the second time slot set;

or,

In the case that the RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set is less than or equal to the third threshold value, it is determined not to select the second time slot gap set.

In some embodiments, the processing unit 510 is specifically used for:

Whether to select the second time slot is determined according to the RSRP threshold value and the number of resources included in the candidate resource set determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time A slot set, and the first time is the time for determining resource reselection or resource selection.

In some embodiments, the processing unit 510 is specifically used for:

The RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time is greater than the fourth threshold value, and the number of resources included in the candidate resource set is less than the fourth threshold value. In the case of five threshold values, determine to select the second time slot set;

or,

The RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time is less than or equal to the fourth threshold value, and the number of resources included in the candidate resource set When the value is greater than or equal to the fifth threshold value, it is determined that the second time slot set is not selected.

In some embodiments, the processing unit 510 is specifically used for:

Whether to select the second set of time slots is determined according to the number of transmissions remaining after the first time and the number of time slots remaining in the first set of time slots after the first time, where the first time is to determine whether to perform resource reselection or resource reselection selected time.

In some embodiments, the processing unit 510 is specifically used for:

In the case where the number of transmissions remaining after the first time is greater than the number of time slots remaining in the first set of time slots after the first time, or, between the number of transmissions remaining after the first time and adjacent transmissions When the product of the minimum time slot interval is greater than the number of time slots remaining in the first time slot set after the first time, it is determined to select the second time slot set;

or,

In the case that the maximum number of transmissions on the sideline remaining after the first time is less than or equal to the number of time slots remaining in the first set of time slots after the first time, or, the maximum number of sidelines remaining after the first time When the product of the number of transmissions and the minimum time slot interval between adjacent transmissions is less than or equal to the number of time slots remaining in the first time slot set after the first time, it is determined not to select the second time slot set.

In some embodiments, the processing unit 510 is specifically used for:

According to the priority, it is determined whether to select the second time slot set.

In some embodiments, the processing unit 510 is specifically used for:

In the case that the priority value corresponding to the data to be transmitted is smaller than the sixth threshold value, it is determined to select the second time slot set; or,

In the case that the priority value corresponding to the data to be transmitted is greater than or equal to the sixth threshold value, it is determined not to select the second time slot set.

In some embodiments, the processing unit 510 is specifically used for:

Whether to select the second time slot set is determined according to whether the resource pool allows periodic reservation of transmission resources.

In some embodiments, the processing unit 510 is specifically used for:

In the case that the resource pool does not allow periodic reservation of transmission resources, determining to select the second time slot set;

or,

In the case that the resource pool allows periodic reservation of transmission resources, it is determined not to select the second time slot set.

In some embodiments, the processing unit 510 is specifically used for:

When the terminal device determines to select the second time slot set, the time domain positions where the time slots in the second time slot set are located are less than or equal to the packet delay budget PDB.

In some embodiments, the processing unit 510 is specifically used for:

The resource reselection is determined according to the resource preemption or re-evaluation detection result at the first time.

In some embodiments, the processing unit 510 is specifically used for:

The terminal device is a terminal that selects resources based on partial interception.

In some embodiments, the aforementioned processing units may be one or more processors.

It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 500 are respectively for realizing the method shown in FIG. 15 . The corresponding process of the terminal device in 200 is not repeated here for brevity.

FIG. 21 shows a schematic block diagram of a terminal device 600 according to an embodiment of the present application. As shown in Figure 21, the terminal device 600 includes:

A communication unit 610, configured to acquire configuration information, wherein the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception;

The processing unit 620 is configured to perform interception according to the configuration information.

In some embodiments, the processing unit 620 is specifically used for:

It is determined according to the configuration information that the terminal device does not perform resource preemption or re-evaluation detection.

In some embodiments, the configuration information is resource pool configuration information, and the configuration information includes indication information, the indication information is used to indicate that the terminal that performs resource selection based on partial interception does not support resource preemption or re-evaluation detection.

In some embodiments, the target parameter is a side-line resource preemption enable sl-PreemptionEnable parameter in the resource pool configuration information.

In some embodiments, the first parameter includes one of the following:

The maximum number of sideline transmissions, the maximum number of sideline retransmissions, and the sideline transmission percentage sl-TxPercentage in the resource pool configuration information.

In some embodiments, the listening parameter is that the terminal performing resource selection based on partial listening does not need to satisfy the sideline transmission percentage s1-TxPercentage in the resource pool configuration information during resource preemption or re-evaluation detection.

In some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip. The aforementioned processing unit may be one or more processors.

It should be understood that the terminal device 600 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 600 are respectively for realizing the method shown in FIG. 18 . The corresponding process of the terminal device in 300 is not repeated here for brevity.

FIG. 22 shows a schematic block diagram of a network device 700 according to an embodiment of the present application. As shown in Figure 22, the network device 700 includes:

The communication unit 710 is configured to send configuration information to a terminal device, where the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception.

In some embodiments, the first parameter includes one of the following:

In some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.

It should be understood that the network device 700 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 700 are respectively for realizing the method shown in FIG. 19 . The corresponding flow of the network device in 400 is not repeated here for brevity.

FIG. 23 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application. The communication device 800 shown in FIG. 23 includes a processor 810, and the processor 810 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

In some embodiments, as shown in FIG. 23 , the communication device 800 may also include a memory 820 . The processor 810 may call and run a computer program from the memory 820 to implement the methods in the embodiments of the present application.

The memory 820 may be a separate device independent of the processor 810 , or may be integrated in the processor 810 .

In some embodiments, as shown in FIG. 23 , the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, specifically, may send information or data to other devices, or Receive information or data sent by other devices.

Among them, the transceiver 830 may include a transmitter and a receiver. The transceiver 830 may further include antennas, and the number of the antennas may be one or more.

In some embodiments, the communication device 800 may specifically be the network device of the embodiments of the present application, and the communication device 800 may implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.

In some embodiments, the communication device 800 may specifically be the terminal device of the embodiments of the present application, and the communication device 800 may implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. Repeat.

FIG. 24 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 900 shown in FIG. 24 includes a processor 910, and the processor 910 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

In some embodiments, as shown in FIG. 24 , the apparatus 900 may also include a memory 920 . The processor 910 may call and run a computer program from the memory 920 to implement the methods in the embodiments of the present application.

The memory 920 may be a separate device independent of the processor 910 , or may be integrated in the processor 910 .

In some embodiments, the apparatus 900 may also include an input interface 930 . The processor 910 may control the input interface 930 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

In some embodiments, the apparatus 900 may also include an output interface 940 . The processor 910 may control the output interface 940 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

In some embodiments, the apparatus may be applied to the network equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the network equipment in each method of the embodiments of the present application, which is not repeated here for brevity.

In some embodiments, the apparatus can be applied to the terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the terminal equipment in each method of the embodiments of the present application, which is not repeated here for brevity.

In some embodiments, the devices mentioned in the embodiments of the present application may also be chips. For example, it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.

FIG. 25 is a schematic block diagram of a communication system 1000 provided by an embodiment of the present application. As shown in FIG. 25 , the communication system 1000 includes a terminal device 1010 and a network device 1020 .

The terminal device 1010 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1020 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), 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 (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a 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 connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, 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.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

In some embodiments, the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For brevity, It is not repeated here.

In some embodiments, the computer-readable storage medium may be applied to the terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For brevity, It is not repeated here.

Embodiments of the present application also provide a computer program product, including computer program instructions.

In some embodiments, the computer program product may be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For brevity, in This will not be repeated here.

In some embodiments, the computer program product may be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For brevity, in This will not be repeated here.

The embodiments of the present application also provide a computer program.

In some embodiments, the computer program may be applied to the network device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the network device in each method of the embodiments of the present application, For brevity, details are not repeated here.

In some embodiments, the computer program may be applied to the terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. For such understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method of wireless communication, comprising:

The terminal device determines to perform resource reselection, wherein the resource reselection is to perform reselection for the transmission resources selected by the terminal in the first time slot set;

The terminal device determines whether to select a second time slot set for determining the candidate resource set, wherein the second time slot set is a time slot set different from the first time slot set.
The method according to claim 1, wherein the determining, by the terminal device, whether to select the second time slot set for determining the candidate transmission resource set comprises:

The terminal device determines whether to select the second time slot set according to the first information;

Wherein, the first information includes at least one of the following:

the number of remaining time slots in the first time slot set after the first time, the first time being the time for determining resource reselection or resource selection;

a reference signal received power RSRP threshold for determining the candidate resource set;

The number of resources included in the candidate resource set;

The number of transmissions remaining after the first time, where the first time is the time for determining resource reselection or resource selection;

priority;

Whether the resource pool allows periodic reservation of transmission resources.
The method according to claim 1 or 2, wherein the determining, by the terminal device, whether to select the second time slot set used for determining the candidate transmission resource set comprises:

The terminal device determines whether to select the second time slot set according to the number of time slots remaining in the first time slot set after a first time, where the first time is the time for determining resource reselection or resource selection .
The method according to claim 3, wherein the terminal device determines whether to select the second time slot set according to the number of time slots remaining in the first time slot set after the first time, comprising:

In the case that the number of remaining time slots in the first time slot set after the first time is less than a first threshold value, the terminal device determines to select the second time slot set;

or,

In the case that the number of remaining time slots in the first time slot set after the first time is greater than or equal to a first threshold value, the terminal device determines not to select the second time slot set.
The method according to claim 1 or 2, wherein the determining, by the terminal device, whether to select the second time slot set used for determining the candidate transmission resource set comprises:

The terminal device determines whether to select the second time slot set according to the ratio of the number of time slots remaining in the first time slot set after the first time to the number of all time slots in the first time slot set, The first time is the time for determining resource reselection or resource selection.
The method according to claim 5, characterized in that, the terminal device is based on a difference between the number of time slots remaining in the first time slot set after the first time and the number of all time slots in the first time slot set ratio, to determine whether to select the second time slot set, including:

In the case that the ratio of the number of time slots remaining in the first time slot set after the first time to the number of all time slots in the first time slot set is smaller than the second threshold value, the terminal device determining to select the second time slot set;

or,

In the case that the ratio of the number of time slots remaining in the first time slot set after the first time to the number of all time slots in the first time slot set is greater than or equal to a second threshold value, the The terminal device determines not to select the second time slot set.
The method according to claim 1 or 2, wherein the determining, by the terminal device, whether to select the second time slot set used for determining the candidate transmission resource set comprises:

The terminal device determines whether to select the second time slot set according to the RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time, and the The first time is the time for determining resource reselection or resource selection.
The method of claim 7, wherein the terminal device determines the RSRP threshold value in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time according to the terminal device , determine whether to select the second time slot set, including:

In the case that the RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set is greater than the third threshold value, the terminal device determines to select the selected resource set. the second set of time slots;

or,

In the case that the RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set is less than or equal to the third threshold value, the terminal device determines The second set of time slots is not selected.
The method according to claim 1 or 2, wherein the determining, by the terminal device, whether to select the second time slot set used for determining the candidate transmission resource set comprises:

The terminal device determines whether to The second time slot set is selected, and the first time is the time for determining resource reselection or resource selection.
The method of claim 9, wherein the terminal device determines the RSRP threshold value in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time according to the terminal device and the number of resources included in the candidate resource set, to determine whether to select the second time slot set, including:

The RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time is greater than the fourth threshold value, and the number of resources included in the candidate resource set In the case of less than the fifth threshold value, the terminal device determines to select the second time slot set;

or,

The RSRP threshold value determined in the process of determining the candidate resource set in the remaining time slots of the first time slot set after the first time is less than or equal to the fourth threshold value, and the RSRP threshold value included in the candidate resource set When the number of resources is greater than or equal to the fifth threshold value, the terminal device determines not to select the second time slot set.
The method according to claim 1 or 2, wherein the determining, by the terminal device, whether to select the second time slot set used for determining the candidate transmission resource set comprises:

The terminal device determines whether to select the second time slot set according to the number of transmissions remaining after the first time and the number of time slots remaining in the first time slot set after the first time, and the first time slot set To determine the timing of resource reselection or resource selection.
The method according to claim 11, wherein the terminal device determines whether to select the selection according to the number of transmissions remaining after the first time and the number of remaining time slots of the first time slot set after the first time The second time slot set includes:

In the case where the number of transmissions remaining after the first time is greater than the number of time slots remaining in the first set of time slots after the first time, or, the number of transmissions remaining after the first time is the same as the number of transmissions remaining after the first time. When the product of the minimum time slot interval between adjacent transmissions is greater than the number of time slots remaining in the first time slot set after the first time, the terminal device determines to select the second time slot set;

or,

In the case that the maximum number of sideline transmissions remaining after the first time is less than or equal to the number of time slots remaining after the first time slot set of the first time slot set, or, the remaining number of time slots after the first time When the product of the maximum number of sideline transmissions and the minimum slot interval between adjacent transmissions is less than or equal to the number of slots remaining in the first set of slots after the first time, the terminal device determines The second set of time slots is not selected.
The method according to claim 1 or 2, wherein the determining, by the terminal device, whether to select the second time slot set used for determining the candidate transmission resource set comprises:

The terminal device determines whether to select the second time slot set according to the priority.
The method according to claim 13, wherein the terminal device determines whether to select the second time slot set according to a priority, comprising:

In the case that the priority value corresponding to the data to be transmitted is smaller than the sixth threshold value, the terminal device determines to select the second time slot set;

or,

In the case that the priority value corresponding to the data to be transmitted is greater than or equal to the sixth threshold value, the terminal device determines not to select the second time slot set.
The method according to claim 1 or 2, wherein the terminal device determining whether to select the second time slot set for determining the candidate transmission resource set comprises:

The terminal device determines whether to select the second time slot set according to whether the resource pool allows periodic reservation of transmission resources.
The method according to claim 13, wherein the terminal device determines whether to select the second time slot set according to whether the resource pool allows periodic reservation of transmission resources, comprising:

In the case that the resource pool does not allow periodic reservation of transmission resources, the terminal device determines to select the second time slot set;

or,

In the case that the resource pool allows periodic reservation of transmission resources, the terminal device determines not to select the second time slot set.
The method of any one of claims 1 to 16, wherein,

When the terminal device determines to select the second time slot set, the time domain positions where the time slots in the second time slot set are located are less than or equal to the packet delay budget PDB.
The method according to any one of claims 1 to 17, wherein the terminal device determining to perform resource reselection comprises:

The terminal device determines to perform resource reselection according to the detection result of resource preemption or re-evaluation at the first time.
The method according to any one of claims 1 to 18, wherein the terminal device is a terminal that performs resource selection based on partial listening.
A method of wireless communication, comprising:

The terminal device acquires configuration information, wherein the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception;

The terminal device listens according to the configuration information.
The method according to claim 20, wherein the terminal device performs listening according to the configuration information, comprising:

The terminal device determines, according to the configuration information, that the terminal device does not perform resource preemption or re-evaluation detection.
The method of claim 20 or 21, wherein,

The configuration information is resource pool configuration information, and the configuration information includes indication information, where the indication information is used to indicate that a terminal performing resource selection based on partial listening does not support resource preemption or re-evaluation detection.
The method of claim 20 or 21, wherein:

The configuration information is resource pool configuration information, and a target parameter is configured in the configuration information, and the value of the target parameter corresponds to the highest priority.
The method of claim 23, wherein

The target parameter is a side-line resource preemption enable sl-PreemptionEnable parameter in the resource pool configuration information.
The method of claim 20, wherein:

The configuration information includes a first information field for configuring the first parameter for the terminal performing resource selection based on partial listening, and a second information field for configuring the first parameter for the terminal performing resource selection based on full listening.
The method of claim 25, wherein the first parameter comprises one of the following:

The maximum number of sideline transmissions, the maximum number of sideline retransmissions, and the sideline transmission percentage sl-TxPercentage in the resource pool configuration information.
The method of claim 20, wherein the listening parameter is that a terminal that selects resources based on partial listening does not need to satisfy the sideline transmission in the resource pool configuration information during resource preemption or re-evaluation detection. Percent sl-TxPercentage.
The method according to any one of claims 20 to 27, wherein the configuration information is pre-configured or agreed in a protocol, or the configuration information is configured by a network device.
A method of wireless communication, comprising:

The network device sends configuration information to the terminal device, where the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception.
The method of claim 29, wherein the configuration information is used for the terminal device to determine that it does not perform resource preemption or re-evaluation detection.
The method of claim 29 or 30, wherein,

The configuration information is resource pool configuration information, and the configuration information includes indication information, where the indication information is used to indicate that a terminal performing resource selection based on partial listening does not support resource preemption or re-evaluation detection.
The method of claim 29 or 30, wherein,

The configuration information is resource pool configuration information, and a target parameter is configured in the configuration information, and the value of the target parameter corresponds to the highest priority.
The method of claim 32, wherein:

The target parameter is a side-line resource preemption enable sl-PreemptionEnable parameter in the resource pool configuration information.
The method of claim 29, wherein

The configuration information includes a first information field for configuring a first parameter for a terminal that performs resource selection based on partial listening, and a second information field for configuring the first parameter for a terminal that performs resource selection based on full listening.
The method of claim 34, wherein the first parameter comprises one of the following:

The maximum number of sideline transmissions, the maximum number of sideline retransmissions, and the sideline transmission percentage sl-TxPercentage in the resource pool configuration information.
The method according to claim 29, wherein the listening parameter is that a terminal that selects resources based on partial listening does not need to satisfy the sideline transmission in the resource pool configuration information in the process of resource preemption or re-evaluation detection. Percent sl-TxPercentage.
A terminal device, characterized in that it includes:

a processing unit, configured to determine to perform resource reselection, wherein the resource reselection is to perform reselection for the transmission resources selected by the terminal in the first time slot set;

The processing unit is further configured to determine whether to select a second time slot set for determining the candidate resource set, where the second time slot set is a time slot set different from the first time slot set.
A terminal device, characterized in that it includes:

a communication unit, configured to obtain configuration information, wherein the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception;

a processing unit, configured to perform interception according to the configuration information.
A network device, characterized in that it includes:

The communication unit is configured to send configuration information to a terminal device, where the terminal device is a terminal that selects resources based on partial interception, and the configuration information is used to configure interception parameters for the terminal that selects resources based on partial interception.
A terminal device, characterized in that it comprises: a processor and a memory, the memory is used for storing a computer program, the processor is used for calling and running the computer program stored in the memory, and executes any one of claims 1 to 19. one of the methods described.
A terminal device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 20 to 28. one of the methods described.
A network device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 29 to 36. one of the methods described.
A chip, characterized in that it includes: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 19, or, A method as claimed in any one of claims 20 to 28 is performed.
A chip, characterized by comprising: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed executes the method according to any one of claims 29 to 36.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method as claimed in any one of claims 1 to 19, or to execute the method as claimed in claim 20 to 28 The method of any one.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 29 to 36.
A computer program product, characterized in that it comprises computer program instructions that cause a computer to perform the method as claimed in any one of claims 1 to 19, or to perform any one of claims 20 to 28 the method described.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 29 to 36.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 19, or to perform the method according to any one of claims 20 to 28.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 29 to 36.