WO2023283777A1

WO2023283777A1 - Wireless communication methods and terminal devices

Info

Publication number: WO2023283777A1
Application number: PCT/CN2021/105819
Authority: WO
Inventors: 张博源; 卢前溪; 冷冰雪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2023-01-19
Also published as: CN117204084A

Abstract

The present application provides wireless communication methods and terminal devices. When a terminal device is outside of network coverage, the terminal device may acquire reliable transmission resources by means of an opposite terminal, and the terminal device can also guarantee the reliability of the resources without performing a sensing operation, thereby reducing the power consumption of the terminal device. A wireless communication method comprises: a first terminal device determines that a target service corresponds to a first resource allocation mode, wherein the first resource allocation mode is a mode in which a second terminal device schedules the first terminal device by means of a unicast connection (S210).

Description

Method and terminal device for wireless communication

technical field

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

Background technique

If the terminal device is outside the coverage of the network, the terminal device independently selects resources. At this time, if the sensing result is unavailable or the resource pool is too congested, the terminal device cannot select a reliable transmission resource, and can only select randomly from the abnormal resource pool, and the reliability cannot be guaranteed. Moreover, when the terminal device independently selects resources, it needs continuous sensing, which will greatly increase power consumption.

Contents of the invention

The embodiment of the present application provides a wireless communication method and a terminal device. When the terminal device is out of network coverage, the terminal device can obtain reliable transmission resources through the opposite end, and the terminal device does not need to perform sensing operations, and the resource can also be guaranteed reliability and reduce the power consumption of terminal equipment.

In a first aspect, a wireless communication method is provided, and the method includes:

The first terminal device determines that the target service corresponds to the first resource allocation mode;

Wherein, the first resource allocation mode is a mode in which the second terminal device schedules the first terminal device through a unicast connection.

In a second aspect, a wireless communication method is provided, and the method includes:

The second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service;

In a third aspect, a terminal device is provided, configured to execute the method in the first aspect above.

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

In a fourth aspect, a terminal device is provided, configured to execute the method in the second aspect above.

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

In a fifth 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 above.

In a sixth 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 above.

In a seventh aspect, an apparatus is provided for implementing the method in any one of the first aspect to the second aspect above.

Specifically, the device includes: a processor, configured to invoke and run a computer program from the memory, so that the device installed with the device executes the method in any one of the above first to second aspects.

In an eighth aspect, there is provided a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method in any one of the above-mentioned first aspect to the second aspect.

In a ninth aspect, a computer program product is provided, including computer program instructions, the computer program instructions causing a computer to execute the method in any one of the above first to second aspects.

In a tenth aspect, a computer program is provided, which, when running on a computer, causes the computer to execute the method in any one of the above first to second aspects.

Through the technical solution of the first aspect above, the first terminal device determines that the target service corresponds to the first resource allocation mode, so that the second terminal device can schedule the first terminal device through a unicast connection, and the first terminal device can schedule the first terminal device based on the second terminal The resource scheduled by the device sends the target service to the second terminal device. That is to say, when the sensing result is unavailable or the resource pool is too congested, the first terminal device can also select a reliable transmission resource, and the first terminal device does not need to perform a sensing operation, and the reliability of the resource can also be guaranteed, reducing the first Power consumption of end equipment.

Through the technical solution of the second aspect above, the second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service, so that the second terminal device can schedule the first terminal device through a unicast connection, and the first terminal The device may send the target service to the second terminal device based on the resources scheduled by the second terminal device. That is to say, when the sensing result is unavailable or the resource pool is too congested, the first terminal device can also select a reliable transmission resource, and the first terminal device does not need to perform a sensing operation, and the reliability of the resource can also be guaranteed, reducing the first Power consumption of end equipment.

Description of drawings

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

Fig. 2 is a schematic diagram of a terminal provided by the present application within network coverage.

Fig. 3 is a schematic diagram of a terminal provided by the present application outside network coverage.

Fig. 4 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a network indicating resource allocation mode provided according to an embodiment of the present application.

Fig. 6 is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.

Fig. 7 is a schematic diagram of another network indication resource allocation mode provided according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of another terminal device provided according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

detailed description

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

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, 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) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications 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, the number of connections supported by traditional communication systems is limited and 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 may also be applied to these communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment 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 as non-shared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In the embodiment of this 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 aircraft, balloons and satellites) superior).

In this embodiment of the 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, 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.

As an example but 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 is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, 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. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

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

As an example but 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 equipment may be a satellite or a balloon station. For example, the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc. Optionally, the network device may also be a base station installed on land, water, and other locations.

In this embodiment of the present application, the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico 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 just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual 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 specification 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 "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, 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 correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.

In this embodiment of the application, "predefined" or "preconfigured" can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The application does not limit its specific implementation. For example, pre-defined may refer to defined in the protocol.

In the embodiment 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 to future communication systems, which is not limited in the present application.

Fig. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applicable. The vehicle-mounted terminals (vehicle-mounted terminal 131 and vehicle-mounted terminal 132 ) autonomously select transmission resources on sidelink resources for data transmission. Optionally, the vehicle-mounted terminal may select transmission resources randomly, or select transmission resources through listening or sensing.

In order to better understand the embodiments of this application, the D2D/V2X related to this application will be described.

Device-to-device communication is a sidelink (Sidelink, SL) transmission technology based on Device to Device (D2D), which is different from the way communication data is received or sent by the base station in traditional cellular systems, so it has Higher spectral efficiency and lower transmission delay. The Internet of Vehicles system adopts the method of terminal-to-terminal direct communication, and the 3rd Generation Partnership Project (The 3rd Generation Partnership Project, 3GPP) defines two transmission modes: mode A and mode B.

Mode A: The transmission resources of the terminal are allocated by the base station, and the terminal sends data on the sidelink according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the terminal, and can also allocate resources for semi-static transmission to the terminal resource. As shown in FIG. 2 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sidelink transmission to the terminal.

Mode B: the terminal selects a resource from the resource pool for data transmission. As shown in Figure 3, the terminal is located outside the coverage of the cell (that is, the terminal is outside the network coverage), and the terminal independently selects transmission resources from the pre-configured resource pool for sidelink transmission; or, as shown in Figure 2, the terminal is configured in the network The transmission resource is independently selected from the resource pool for side transmission.

It should be noted that mode A may also be called mode 1, and mode B may also be called mode 2.

In 3GPP, D2D is divided into proximity-based services (Proximity-based Services, ProSe), vehicle networking (Vehicle to everything, V2X) and wearable devices (FeD2D).

ProSe: device-to-device communication is researched on the ProSe scenario, which is mainly aimed at public security services.

In ProSe, by configuring the position of the resource pool in the time domain, for example, the resource pool is discontinuous in the time domain, so that the UE can discontinuously send/receive data on the sidelink, thereby achieving the effect of power saving.

Vehicle-to-vehicle (V2X): The vehicle-to-vehicle communication system has been studied, which is mainly for relatively high-speed vehicle-to-vehicle and vehicle-to-person communication services; in V2X, since the vehicle-mounted system has continuous power supply, the power efficiency It is not the main problem, but the time delay of data transmission is the main problem, so the terminal equipment is required to send and receive continuously in the system design.

Wearable Devices (FeD2D): This scenario studies the scenario where wearable devices access the network through mobile phones, and it is mainly oriented to scenarios with low mobile speed and low power access. In FeD2D, the 3GPP conclusion in the pre-research stage is that the base station can configure the Discontinuous Reception (DRX) parameters of the remote (remote) terminal through a relay (relay) terminal.

In order to better understand the embodiments of this application, the NR V2X related to this application will be described.

NR V2X is not limited to broadcast scenarios, but has been further expanded to unicast and multicast scenarios, and the application of V2X is studied in these scenarios. NR V2X will also define the above two resource authorization modes of Mode A/Mode B; furthermore, users may be in a mixed mode, that is, they can use Mode A for resource acquisition and Mode B for resource acquisition at the same time Obtain. The resource acquisition is indicated through the sidelink authorization, that is, the sidelink authorization indicates the corresponding Physical Sidelink Control Channel (PSCCH) and Physical Sidelink Shared Channel (PSSCH) resources The time-frequency position of .

Unlike LTE V2X, in addition to the Hybrid Automatic Repeat reQuest (HARQ) retransmission initiated by UE without feedback, NR V2X introduces feedback-based HARQ retransmission, which is not limited to unicast communication, but also includes group broadcast communication.

Same as LTE V2X, in NR V2X, because the vehicle system has continuous power supply, power efficiency is not the main issue, but the delay of data transmission is the main issue, so the system design requires terminal equipment to perform continuous transmission and reception.

In order to facilitate a better understanding of the embodiments of the present application, the prior art and existing problems related to the present application are described.

At this stage, if the terminal is outside the coverage of the network, it can only use mode B to obtain resources, that is, the terminal independently selects resources. At this time, if the sensing result is unavailable or the resource pool of mode B is too congested, the terminal cannot select a reliable transmission resource, and can only randomly select from the abnormal resource pool, and the reliability cannot be guaranteed. On the other hand, when the terminal uses mode B to acquire resources, it needs continuous sensing, which will greatly increase power consumption.

Based on the above problems, this application proposes a resource allocation scheme. When the terminal device is out of network coverage, the terminal device can obtain reliable transmission resources through the peer end, and the terminal device does not need to perform sensing operations, and the resources can also be guaranteed. Reliability, reducing the power consumption of terminal equipment.

The technical scheme of the present application is described in detail below through specific examples.

FIG. 4 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 4 , the wireless communication method 200 may include at least part of the following content:

S210, the first terminal device determines that the target service corresponds to a first resource allocation mode; where the first resource allocation mode is a mode in which the second terminal device schedules the first terminal device through a unicast connection.

In some embodiments, the target service may be a unicast connection service, and the first terminal device is the originator of the target service, and the second terminal device is the receiver of the target service.

In this embodiment of the present application, the first terminal device may also be called a scheduled terminal, the second terminal device may also be called a scheduling terminal, and the first resource allocation mode may also be called mode 2d. In the first resource allocation mode (mode 2d), the second terminal device schedules resource selection by the first terminal device.

In this embodiment of the present application, in the first resource allocation mode, the second terminal device can schedule the first terminal device through a unicast connection (that is, the second terminal device can configure transmission resources for the first terminal device through a unicast connection), And the first terminal device may send the target service to the second terminal device based on the resources scheduled by the second terminal device.

In some embodiments, when the second terminal device has a resource scheduling capability for the target service, the first terminal device determines that the target service corresponds to the first resource allocation mode.

In some embodiments, the first terminal device receives first indication information sent by the second terminal device, where the first indication information is used to indicate that the second terminal device has a resource scheduling capability for the target service.

In some embodiments, the first indication information may be sent by one of the following methods:

PC5-RRC signaling, Media Access Control Control Element (MAC CE) signaling, Sidelink Control Information (SCI) signaling.

In some embodiments, whether the second terminal device has the resource scheduling capability for the target service is acquired by the first terminal device during the process of establishing a sidelink connection with the second terminal device.

In some embodiments, the first terminal device determines that the target service corresponds to the first resource allocation mode according to the first condition;

Wherein, the first condition includes at least one of the following: the first terminal device is out of network coverage, the sensing result of the first terminal device is unavailable, and the second terminal device has a resource scheduling capability for the target service.

In some embodiments, the first terminal device determines according to the first correspondence that the target service corresponds to the first resource allocation mode;

Wherein, the first correspondence includes a correspondence between first information and at least one resource selection mode, the at least one resource selection mode includes the first resource allocation mode, and the first information includes at least one of the following: service quality ( Quality of Service, QoS), Service Priority (Service Priority), Sidelink Resource Block (Sidelink Resource Block, SL-RB), destination ID (destination ID), communication type (cast type), resource pool (resource pool), Geographic area identifier.

Specifically, for example, the first terminal device determines that the target service corresponds to the first resource allocation mode according to its corresponding first information and the first correspondence relationship.

That is, the first terminal device determines the target service according to at least one of its corresponding QoS, service priority, side resource block, destination identifier, communication type, resource pool, geographic location area identifier, and the first corresponding relationship. Corresponding to the first resource allocation mode.

It should be noted that the destination ID (destination ID) may indicate the target service, and may also indicate the receiving end device (that is, the second terminal device) of the target service.

In some embodiments, the communication type (cast type) may include at least one of the following:

Unicast communication, multicast communication, broadcast communication.

In some embodiments, the first correspondence is pre-configured or stipulated in a protocol, or the first correspondence is a system message (such as a system information block (System Information Block, SIB)) or a dedicated message of the first network device. command configuration.

In some embodiments, the first terminal device determines that the target service corresponds to the first resource allocation mode according to an instruction of the first network device.

In some implementations, when the first terminal device is within the coverage of the first network device and the first terminal device is in a radio resource control (Radio Resource Control, RRC) connected state, the first terminal device passes The direct link terminal auxiliary information (SidelinkUEInformation) sends the target service to the first network device; and the first terminal device receives second indication information sent by the first network device, where the second indication information is used to indicate the The target service corresponds to the first resource allocation mode.

Specifically, for example, the first terminal device is within the coverage of the first network device, and the first terminal device is in the RRC connection state. As shown in FIG. The network device sends a destination ID 1 (destination ID1), wherein the destination ID 1 indicates a target service; after the first network device receives the destination ID 1, it can configure the first resource corresponding to the target service for the first terminal device Assignment mode, as specifically shown in FIG. 5, the first network device sends second indication information to the first terminal device through an RRC reconfiguration message (RRCReconfiguration), where the second indication information is used to indicate that the target identifier 1 pair Should be the first resource allocation mode. And the first terminal device sends a resource allocation mode switch request to the second terminal device, to instruct to switch the resource allocation mode corresponding to the target service to the first resource allocation mode.

In some embodiments, the first terminal device sends third indication information to the second terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode. That is, after the first terminal device determines that the target service corresponds to the first resource allocation mode, the first terminal device sends the third indication information to the second terminal device to trigger the second terminal device to determine whether it It has the ability to activate the first resource allocation mode corresponding to the target service.

In some embodiments, the third indication information may be sent by one of the following methods:

PC5-RRC signaling, MAC CE signaling, SCI signaling.

In some embodiments, the first terminal device sends first request information to the second terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.

In some embodiments, the first request information may be sent by one of the following:

PC5-RRC signaling, MAC CE signaling, SCI signaling.

In some embodiments, the first terminal device receives first response information sent by the second terminal device, where the first response information includes response information to the first request information.

Specifically, for example, the response information for the first request information may be an acknowledgment (Acknowledgment, ACK) or a negative acknowledgment (Negative Acknowledgment, NACK).

In some embodiments, the first response message may be sent by one of the following:

PC5-RRC signaling, MAC CE signaling, SCI signaling, Physical Sidelink Feedback Channel (PSFCH).

In some embodiments, when the response information included in the first response information for the first request information is ACK, the first response information includes the resource pool configuration corresponding to the target service. Therefore, the first terminal device can acquire the sending resource corresponding to the target service based on the resource pool configuration.

In some embodiments, if the response information for the first request information included in the first response information is ACK, the first terminal device activates the first resource allocation mode corresponding to the target service.

In some embodiments, the first terminal device determines to deactivate the first resource allocation mode corresponding to the target service. That is, after the first terminal device activates the first resource allocation mode corresponding to the target service, in some cases, the first terminal device may deactivate the first resource allocation mode corresponding to the target service.

In some implementations, the first terminal device determines to deactivate the first resource allocation mode corresponding to the target service according to a second condition; wherein the second condition includes at least one of the following:

When the first terminal device is within the coverage of the first network device and the first terminal device is in the RRC connection state, the first network device reconfigures the resource allocation mode for the first terminal device;

A radio link failure (Radio Link Failure, RLF) occurs on the unicast link corresponding to the target service;

The Reference Signal Received Power (RSRP) of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

The channel busy rate (Channel Busy Ratio, CBR) of the sending resource pool corresponding to the target service is greater than the CBR threshold;

The first terminal device has a service to be transmitted with a priority higher than a priority threshold;

The first terminal device has a service to be transmitted whose QoS is higher than the QoS threshold.

In some implementations, the sideline RSRP threshold is preconfigured or agreed upon by the protocol, or, the sideline RSRP threshold is configured for the first network device; and/or, the CBR threshold is preconfigured or agreed upon by the protocol, or , the CBR threshold is configured for the first network device; and/or, the priority threshold is pre-configured or agreed by the agreement, or, the priority threshold is configured for the first network device; and/or, the QoS threshold is It is pre-configured or agreed in a protocol, or the QoS threshold is configured for the first network device.

In some implementation manners, after the first terminal device determines to deactivate the first resource allocation mode corresponding to the target service, the first terminal device sends fourth indication information to the second terminal device, and the fourth indication information It is used to instruct the second terminal device to deactivate the first resource allocation mode corresponding to the target service.

In some embodiments, the fourth indication information may be sent by one of the following methods:

PC5-RRC signaling, MAC CE signaling, SCI signaling.

In some embodiments, the fourth indication information includes first reason information, where the first reason information is used to indicate a reason for deactivating the first resource allocation mode corresponding to the target service.

For example, if the second condition includes that the first terminal device is within the coverage of the first network device and the first terminal device is in the RRC connection state, the first network device has reconfigured resources for the first terminal device allocation mode, the first cause information includes that the first network device has reconfigured the resource allocation mode for the first terminal device.

For another example, if the second condition includes that RLF occurs on the unicast link corresponding to the target service, the first cause information includes that RLF occurs on the unicast link corresponding to the target service.

For another example, if the second condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the first cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold.

For another example, if the second condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, the first cause information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold.

For another example, if the second condition includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold, the first cause information includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold business.

For another example, if the second condition includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the first cause information includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold.

In some embodiments, the first terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode. For example, the second resource allocation mode is the above-mentioned mode A or mode B.

In some embodiments, the first terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode according to the resource allocation mode priority information; wherein, the second resource allocation mode The priority of the mode is lower than the first resource allocation mode.

In some embodiments, the resource allocation mode priority information is pre-configured or agreed by a protocol, or the resource allocation mode priority information is configured by the first network device.

Therefore, in the embodiment of the present application, the first terminal device determines that the target service corresponds to the first resource allocation mode, so that the second terminal device can schedule the first terminal device through a unicast connection, and the first terminal device can schedule the first terminal device based on the second terminal The resource scheduled by the device sends the target service to the second terminal device. That is, when the first terminal device is out of network coverage, when the sensing result is unavailable or the resource pool is too congested, the first terminal device can also select a reliable transmission resource, and the first terminal device does not need to perform a sensing operation, and can also The reliability of resources is ensured, and the power consumption of the first terminal device is reduced.

The above describes the embodiment of the first terminal device side of the present application in detail in conjunction with FIG. 4 to FIG. The embodiments on the side of the second terminal device correspond to the embodiments on the side of the first terminal device, and similar descriptions may refer to the embodiments on the side of the first terminal device.

FIG. 6 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG. 6, the wireless communication method 300 may include at least part of the following content:

S310, the second terminal device determines that it is capable of activating a first resource allocation mode corresponding to the target service; where the first resource allocation mode is a mode in which the second terminal device schedules the first terminal device through a unicast connection.

In some embodiments, when the first terminal device determines that the target service corresponds to the first resource allocation mode, the second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service.

In some embodiments, the second terminal device receives third indication information sent by the first terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode.

PC5-RRC signaling, MAC CE signaling, SCI signaling.

In some embodiments, the second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service according to a third condition; wherein the third condition includes at least one of the following:

The CBR of the resource pool configured for the target service is less than the CBR threshold;

The RSRP of the unicast link corresponding to the target service is higher than the sidelink RSRP threshold;

The number of unicast scheduled connections is not greater than the maximum capability value of the second terminal device;

The number of unicast scheduling connections is not greater than the connection threshold;

There is no service to be transmitted with a priority higher than the priority threshold in the second terminal device;

There is no service to be transmitted whose QoS is higher than the QoS threshold in the second terminal device.

For example, the second terminal device performs CBR measurement on the resource pool configured for the target service (that is, the resource pool corresponding to the first resource allocation mode), and judges the congestion degree of the resource pool. If the CBR measurement value of the resource pool is greater than the CBR threshold, or if the measured CBR value of the resource pool is equal to the CBR threshold, the second terminal device cannot enter the first resource allocation mode to schedule the first terminal device; if the measured CBR value of the resource pool is less than the CBR threshold, the The second terminal device has the capability of entering the first resource allocation mode to schedule the first terminal device.

For another example, the second terminal device performs RSRP measurement on the unicast link corresponding to the target service to determine the link quality, and if the RSRP of the unicast link corresponding to the target service is not higher than the sidelink RSRP threshold, the second terminal device The second terminal device cannot enter the first resource allocation mode to schedule the first terminal device; if the RSRP of the unicast link corresponding to the target service is higher than the sidelink RSRP threshold, the second terminal device has the right to enter the first resource allocation mode The mode schedules the capabilities of the first terminal device.

For another example, the second terminal device judges whether the current number of unicast scheduled connections is greater than the maximum capability value of the second terminal device, or the second terminal device judges whether the current number of unicast scheduled connections is greater than the connection number threshold, if If greater than, the second terminal device cannot enter the first resource allocation mode to schedule the first terminal device; if not, the second terminal device has the ability to enter the first resource allocation mode to schedule the first terminal device.

For another example, the second terminal device judges whether it has a service to be transmitted with a priority higher than the priority threshold, or the second terminal device judges whether it has a service to be transmitted with a QoS higher than the QoS threshold, if there is such a service to be transmitted If there is no such service to be transmitted, the second terminal device has the right to enter the first resource allocation mode to schedule the first terminal device. The allocation mode schedules the capabilities of the first terminal device.

In some implementations, the sideline RSRP threshold is preconfigured or agreed upon by the protocol, or, the sideline RSRP threshold is configured for the first network device; and/or, the CBR threshold is preconfigured or agreed upon by the protocol, or , the CBR threshold is configured for the first network device; and/or, the priority threshold is pre-configured or agreed by the agreement, or, the priority threshold is configured for the first network device; and/or, the QoS threshold is It is pre-configured or agreed upon in an agreement, or, the QoS threshold is configured for the first network device.

In some embodiments, the second terminal device receives and sends first indication information to the first terminal device, where the first indication information is used to indicate that the second terminal device has activated the first resource allocation mode corresponding to the target service Ability.

PC5-RRC signaling, MAC CE signaling, SCI signaling.

In some embodiments, when the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connection state, the second terminal device sends the terminal assistance information to the second terminal device through the direct link The network device sends a scheduling request for the target service; and the second terminal device receives fifth indication information sent by the second network device, where the fifth indication information is used to indicate that the second terminal device agrees to the target service scheduling request.

In some embodiments, the fifth indication information includes a resource pool configuration corresponding to the target service.

In some embodiments, the resource pool configuration corresponding to the target service may also be expressed as: the resource pool configuration corresponding to the first resource allocation mode. This application is not limited to this.

For example, if the second terminal device is in the network coverage and is in the RRC connection state, the second terminal device reports the direct link terminal assistance information to the network side, and indicates to the base station a scheduling request for the target service, that is, the second terminal device wishes to pass through The first resource allocation mode schedules transmission resources of the first terminal device. After receiving the terminal scheduling request, the base station indicates to the second terminal device whether to agree to use the first resource allocation mode to schedule the first terminal device. If the base station indicates yes, optionally, the base station may configure the resource pool corresponding to the first resource allocation mode to the second terminal device at the same time. After receiving the consent instruction from the base station and optionally the configuration of the resource pool, the second terminal device sends a scheduling request feedback to the first terminal device.

Specifically, for example, the first terminal device is within the coverage of the first network device, and the first terminal device is in the RRC connection state, and the second terminal device is within the coverage of the second network device, and the second terminal device is in the RRC connection state, as shown in Figure 7 As shown, the first terminal device sends a destination ID 1 (destination ID1) to the first network device through the direct link terminal auxiliary information (SidelinkUEInformation), where the destination ID 1 indicates the target service and the second terminal device; the second terminal device After a network device receives the target identifier 1, it can configure the target service for the first terminal device to correspond to the first resource allocation mode. As shown in FIG. Sending second indication information to the first terminal device, where the second indication information is used to indicate that the target identifier 1 corresponds to the first resource allocation mode, and the first terminal device sends a resource allocation mode switching request to the second terminal device . As shown in FIG. 7 , the second terminal device sends the through-link terminal auxiliary information (SidelinkUEInformation) to the first network device, where the destination ID 2 indicates the scheduling request and the second A terminal device; after receiving the target identifier 2, the second network device may indicate to agree to the second terminal device's scheduling request (ACK) for the target service/resource pool configuration corresponding to the target service, as shown in Figure 7 As shown, the second network device sends fifth indication information to the second terminal device through an RRC reconfiguration message (RRCReconfiguration), where the fifth indication information is used to indicate that the second terminal device agrees to the scheduling of the target service request, and the fifth indication information includes the resource pool configuration corresponding to the target service.

In some embodiments, the first resource allocation mode is referred to as mode 2d for short. In this case, the sidelink UEInformation can be as shown in Table 1, and the "sl-isMode2dRequired" field in Table 1 is used for Indicates the scheduling request of the target service.

Table 1

In some embodiments, the second terminal device receives first request information sent by the first terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.

PC5-RRC signaling, MAC CE signaling, SCI signaling.

In some embodiments, the second terminal device sends first response information to the first terminal device, where the first response information includes response information to the first request information.

Specifically, for example, the response information for the first request information may be ACK or NACK.

In some embodiments, when the response information included in the first response information for the first request information is ACK, the first response information includes the resource pool configuration corresponding to the target service.

PC5-RRC signaling, MAC CE signaling, SCI signaling, PSFCH.

In some embodiments, the second terminal device activates the first resource allocation mode corresponding to the target service.

In some embodiments, the second terminal device determines to deactivate the first resource allocation mode corresponding to the target service.

In some embodiments, the second terminal device determines to deactivate the first resource allocation mode corresponding to the target service according to a fourth condition; wherein the fourth condition includes at least one of the following:

When the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connection state, the second network device reconfigures the resource allocation mode for the second terminal device;

RLF occurs on the unicast link corresponding to the target service;

The RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

The CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

The second terminal device has a service to be transmitted with a priority higher than a priority threshold;

The second terminal device has a service to be transmitted whose QoS is higher than the QoS threshold.

In some embodiments, the second terminal device sends sixth indication information to the first terminal device, where the sixth indication information is used to instruct the first terminal device to deactivate the first resource allocation mode corresponding to the target service.

In some embodiments, the sixth indication information includes second reason information, where the second reason information is used to indicate a reason for deactivating the first resource allocation mode corresponding to the target service.

For example, if the fourth condition includes that the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connection state, the second network device has reconfigured resources for the second terminal device allocation mode, the second cause information includes that the second network device has reconfigured the resource allocation mode for the second terminal device.

For another example, if the fourth condition includes that RLF occurs on the unicast link corresponding to the target service, the second cause information includes that RLF occurs on the unicast link corresponding to the target service.

For another example, if the fourth condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the second cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold.

For another example, if the fourth condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, the second cause information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold.

For another example, if the fourth condition includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold, the second cause information includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold. business.

For another example, if the fourth condition includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the second cause information includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold.

In some embodiments, the second terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode.

In some embodiments, the second terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode according to the resource allocation mode priority information; wherein, the second resource allocation mode The priority of the mode is lower than the first resource allocation mode.

In some embodiments, the resource allocation mode priority information is pre-configured or agreed in a protocol, or the resource allocation mode priority information is configured by the second network device.

Therefore, in the embodiment of this application, the second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service, so that the second terminal device can schedule the first terminal device through a unicast connection, and the first terminal The device may send the target service to the second terminal device based on the resources scheduled by the second terminal device. That is, when the first terminal device is out of network coverage, when the sensing result is unavailable or the resource pool is too congested, the first terminal device can also select a reliable transmission resource, and the first terminal device does not need to perform a sensing operation, and can also The reliability of resources is ensured, and the power consumption of the first terminal device is reduced.

The method embodiment of the present application is described in detail above in conjunction with FIG. 4 to FIG. 7 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 8 to FIG. 9 . It should be understood that the device embodiment and the method embodiment correspond to each other, similar to The description can refer to the method embodiment.

Fig. 8 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. The terminal device 400 is a first terminal device. As shown in FIG. 8, the terminal device 400 includes:

A processing unit 410, configured to determine that the target service corresponds to the first resource allocation mode;

In some embodiments, the processing unit 410 is specifically used for:

If the second terminal device has a resource scheduling capability for the target service, it is determined that the target service corresponds to the first resource allocation mode.

In some embodiments, the terminal device 400 further includes: a communication unit 420,

The communication unit 420 is configured to receive first indication information sent by the second terminal device, where the first indication information is used to indicate that the second terminal device has a resource scheduling capability for the target service.

In some embodiments, the processing unit 410 is specifically used for:

determining that the target service corresponds to the first resource allocation mode according to the first condition;

In some embodiments, the processing unit 410 is specifically used for:

determining that the target service corresponds to the first resource allocation mode according to the first correspondence;

Wherein, the first correspondence includes a correspondence between first information and at least one resource selection mode, the at least one resource selection mode includes the first resource allocation mode, and the first information includes at least one of the following: Quality of Service (QoS) , service priority, side row resource block, destination identifier, communication type, resource pool, geographic location area identifier.

In some embodiments, the processing unit 410 is specifically used for:

Determine that the target service corresponds to the first resource allocation mode according to the first information corresponding to the first terminal device and the first correspondence.

In some embodiments, the first correspondence is pre-configured or stipulated in a protocol, or the first correspondence is configured by the first network device through a system message or dedicated signaling.

In some embodiments, the processing unit 410 is specifically used for:

It is determined according to the instruction of the first network device that the target service corresponds to the first resource allocation mode.

In some embodiments, the terminal device 400 further includes a communication unit 420;

When the first terminal device is within the coverage of the first network device and the first terminal device is in a radio resource control RRC connected state, the communication unit 420 is configured to send terminal assistance information to the first network through a direct link The device sends the target service;

The communication unit 420 is configured to receive second indication information sent by the first network device, where the second indication information is used to indicate that the target service corresponds to the first resource allocation mode.

In some embodiments, the terminal device 400 also includes:

The communication unit 420 is configured to send third indication information to the second terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode.

In some embodiments, the terminal device 400 also includes:

The communication unit 420 is configured to send first request information to the second terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.

In some embodiments, the communication unit 420 is further configured to receive first response information sent by the second terminal device, where the first response information includes response information to the first request information.

In some embodiments, when the response information included in the first response information for the first request information is an acknowledgment ACK, the first response information includes the resource pool configuration corresponding to the target service.

In some embodiments, when the response information for the first request information included in the first response information is ACK, the processing unit 410 is further configured to activate the first resource allocation mode corresponding to the target service.

In some embodiments, the processing unit 410 is further configured to determine to deactivate the first resource allocation mode corresponding to the target service.

In some embodiments, the processing unit 410 is specifically used for:

determining to deactivate the first resource allocation mode corresponding to the target service according to the second condition;

Wherein, the second condition includes at least one of the following:

A radio link failure RLF occurs on the unicast link corresponding to the target service;

The reference signal received power RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

The channel busy rate CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

The communication unit 420 is configured to send fourth indication information to the second terminal device, where the fourth indication information is used to instruct the second terminal device to deactivate the first resource allocation mode corresponding to the target service.

In some embodiments, if the second condition includes that the first terminal device is within the coverage of the first network device and the first terminal device is in an RRC connected state, the first network device is the first terminal device If the resource allocation mode is reconfigured, the first cause information includes that the first network device reconfigures the resource allocation mode for the first terminal device;

If the second condition includes that RLF occurs on the unicast link corresponding to the target service, the first cause information includes that RLF occurs on the unicast link corresponding to the target service;

If the second condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the first cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

If the second condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, then the first cause information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

If the second condition includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold, the first cause information includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold;

If the second condition includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the first cause information includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold.

In some embodiments, the sideline RSRP threshold is preconfigured or agreed upon by the protocol, or, the sideline RSRP threshold is configured for the first network device; and/or, the CBR threshold is preconfigured or agreed by the agreement, or , the CBR threshold is configured for the first network device; and/or, the priority threshold is pre-configured or agreed by the agreement, or, the priority threshold is configured for the first network device; and/or, the QoS threshold is It is pre-configured or agreed upon in an agreement, or, the QoS threshold is configured for the first network device.

In some embodiments, the processing unit 410 is further configured to switch the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode.

In some embodiments, the processing unit 410 is specifically used for:

Switching the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode according to the resource allocation mode priority information;

Wherein, the priority of the second resource allocation mode is lower than that of the first resource allocation mode.

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 400 according to the embodiment of the present application may correspond to the first 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 400 are to realize the For the sake of brevity, the corresponding flow of the first terminal device in the wireless communication method 200 shown in FIG. 5 is not repeated here.

Fig. 9 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application. The terminal device 500 is a second terminal device. As shown in FIG. 9, the terminal device 500 includes:

A processing unit 510, configured to determine that the second terminal device has the ability to activate the first resource allocation mode corresponding to the target service;

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

In a case where the first terminal device determines that the target service corresponds to the first resource allocation mode, it is determined that the second terminal device has the capability of activating the first resource allocation mode corresponding to the target service.

In some embodiments, the terminal device 500 also includes:

The communication unit 520 is configured to receive third indication information sent by the first terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode.

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

It is determined according to the third condition that it has the ability to activate the first resource allocation mode corresponding to the target service; wherein the third condition includes at least one of the following:

The channel busy rate CBR of the resource pool configured for the target service is less than the CBR threshold;

The reference signal received power RSRP of the unicast link corresponding to the target service is higher than the sidelink RSRP threshold;

The second terminal device does not have a service to be transmitted whose quality of service QoS is higher than the QoS threshold.

In some embodiments, the terminal device 500 also includes:

The communication unit 520 is configured to receive and send first indication information to the first terminal device, where the first indication information is used to indicate that the second terminal device has the capability of activating the first resource allocation mode corresponding to the target service.

In some embodiments, the terminal device 500 further includes: a communication unit 520, wherein,

In the case that the second terminal device is within the coverage of the second network device and the second terminal device is in the radio resource control RRC connection state, the communication unit 520 is configured to send terminal assistance information to the second network device through a direct link Send a scheduling request for the target business;

The communication unit 520 is configured to receive fifth indication information sent by the second network device, where the fifth indication information is used to indicate approval of the second terminal device's scheduling request for the target service.

In some embodiments, the fifth indication information also includes a resource pool configuration corresponding to the target service.

In some embodiments, the terminal device 500 also includes:

The communication unit 520 is configured to receive first request information sent by the first terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.

In some embodiments, the terminal device 500 also includes:

The communication unit 520 is configured to send first response information to the first terminal device, where the first response information includes response information to the first request information.

In some embodiments, the processing unit 510 is further configured to activate the first resource allocation mode corresponding to the target service.

In some embodiments, the processing unit 510 is further configured to determine to deactivate the first resource allocation mode corresponding to the target service.

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

Determining to deactivate the first resource allocation mode corresponding to the target service according to the fourth condition;

Wherein, the fourth condition includes at least one of the following:

The communication unit 520 is configured to send sixth indication information to the first terminal device, where the sixth indication information is used to instruct the first terminal device to deactivate the first resource allocation mode corresponding to the target service.

In some embodiments, if the fourth condition includes that the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connected state, the second network device is the second terminal device If the resource allocation mode is reconfigured, the second cause information includes that the second network device reconfigures the resource allocation mode for the second terminal device;

If the fourth condition includes that RLF occurs on the unicast link corresponding to the target service, the second cause information includes that RLF occurs on the unicast link corresponding to the target service;

If the fourth condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the second cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

If the fourth condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, then the second reason information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

If the fourth condition includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold, the second cause information includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold;

If the fourth condition includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the second cause information includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold.

In some embodiments, the processing unit 510 is further configured to switch the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode.

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

It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the second 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 to realize the For the sake of brevity, the corresponding flow of the second terminal device in the wireless communication method 300 shown in FIG. 7 will not be repeated here.

FIG. 10 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 10 includes a processor 610, and the processor 610 can invoke 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. 10 , the communication device 600 may further include a memory 620 . Wherein, the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.

Wherein, the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .

In some embodiments, as shown in FIG. 10 , the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or Receive messages or data from other devices.

Wherein, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

In some embodiments, the communication device 600 may specifically be the first terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the first terminal device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.

In some embodiments, the communication device 600 may specifically be the second terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the second terminal device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.

Fig. 11 is a schematic structural diagram of a device according to an embodiment of the present application. The apparatus 700 shown in FIG. 11 includes a processor 710, and the processor 710 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. 11 , the device 700 may further include a memory 720 . Wherein, the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.

Wherein, the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .

In some embodiments, the device 700 may further include an input interface 730 . Wherein, the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.

In some embodiments, the device 700 may further include an output interface 740 . Wherein, the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

In some embodiments, the device can be applied to the first terminal device in the embodiment of the present application, and the device can implement the corresponding processes implemented by the first terminal device in the methods of the embodiments of the present application. For the sake of brevity, here No longer.

In some embodiments, the device can be applied to the second terminal device in the embodiment of the present application, and the device can implement the corresponding process implemented by the second terminal device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

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

Fig. 12 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 12 , the communication system 800 includes a first terminal device 810 and a second terminal device 820 .

Wherein, the first terminal device 810 can be used to realize the corresponding functions realized by the first terminal device in the above method, and the second terminal device 820 can be used to realize the corresponding functions realized by the second terminal device in the above method , for the sake of brevity, it is not repeated here.

It should be understood that the processor in the 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-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions 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 Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may 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 connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. 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 the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (Static RAM, SRAM), Dynamic Random Access Memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection 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-mentioned memory is illustrative but not restrictive. 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), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

In some embodiments, the computer-readable storage medium can be applied to the first terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.

In some embodiments, the computer-readable storage medium can be applied to the second terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding procedures implemented by the second terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.

The embodiment of the present application also provides a computer program product, including computer program instructions.

In some embodiments, the computer program product can be applied to the first 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 first terminal device in the various methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.

In some embodiments, the computer program product can be applied to the second terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the second terminal device in each method of the embodiment of the present application, For the sake of brevity, details are not repeated here.

The embodiment of the present application also provides a computer program.

In some embodiments, the computer program can be applied to the first terminal device in the embodiment of the present application. When the computer program is run on the computer, the computer executes each method in the embodiment of the present application to be realized by the first terminal device For the sake of brevity, the corresponding process will not be repeated here.

In some embodiments, the computer program can be applied to the second terminal device in the embodiment of the present application. When the computer program is run on the computer, the computer executes each method in the embodiment of the present application to be realized by the second terminal device. For the sake of brevity, the corresponding process will not be repeated here.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device 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 can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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

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

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

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method for wireless communication, comprising:

The first terminal device determines that the target service corresponds to the first resource allocation mode;

Wherein, the first resource allocation mode is a mode in which the second terminal device schedules the first terminal device through a unicast connection.
The method according to claim 1, wherein the first terminal device determines that the target service corresponds to the first resource allocation mode, comprising:

In a case where the second terminal device has a resource scheduling capability for the target service, the first terminal device determines that the target service corresponds to the first resource allocation mode.
The method of claim 2, further comprising:

The first terminal device receives first indication information sent by the second terminal device, where the first indication information is used to indicate that the second terminal device has a resource scheduling capability for the target service.
The method according to any one of claims 1 to 3, wherein the first terminal device determines that the target service corresponds to the first resource allocation mode, comprising:

determining, by the first terminal device, that the target service corresponds to the first resource allocation mode according to a first condition;

Wherein, the first condition includes at least one of the following: the first terminal device is out of network coverage, the sensing result of the first terminal device is unavailable, and the second terminal device has Resource scheduling capabilities.
The method according to claim 2 or 4, wherein whether the second terminal device has the resource scheduling capability for the target service is determined by the first terminal device when establishing a sideline with the second terminal device. obtained during connection.
The method according to any one of claims 1 to 3, wherein the first terminal device determines that the target service corresponds to the first resource allocation mode, comprising:

determining, by the first terminal device, that the target service corresponds to the first resource allocation mode according to the first correspondence;

Wherein, the first correspondence includes a correspondence between first information and at least one resource selection mode, the at least one resource selection mode includes the first resource allocation mode, and the first information includes at least one of the following : Quality of service QoS, service priority, side row resource block, destination identification, communication type, resource pool, geographic location area identification.
The method according to claim 6, wherein the first terminal device determines that the target service corresponds to the first resource allocation mode according to the first correspondence, comprising:

The first terminal device determines that the target service corresponds to the first resource allocation mode according to the corresponding first information and the first correspondence.
The method according to claim 6 or 7, wherein the first correspondence is pre-configured or stipulated in a protocol, or the first correspondence is configured by the first network device through system messages or dedicated signaling of.
The method according to any one of claims 1 to 3, wherein the first terminal device determines that the target service corresponds to the first resource allocation mode, comprising:

The first terminal device determines that the target service corresponds to the first resource allocation mode according to an instruction of the first network device.
The method according to claim 9, wherein the first terminal device determines that the target service corresponds to the first resource allocation mode according to the instruction of the first network device, comprising:

When the first terminal device is within the coverage of the first network device and the first terminal device is in a radio resource control RRC connected state, the first terminal device sends terminal assistance information to the The first network device sends the target service;

The first terminal device receives second indication information sent by the first network device, where the second indication information is used to indicate that the target service corresponds to the first resource allocation mode.
The method according to any one of claims 1 to 10, further comprising:

The first terminal device sends third indication information to the second terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode.
The method according to any one of claims 1 to 11, further comprising:

The first terminal device sends first request information to the second terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.
The method of claim 12, further comprising:

The first terminal device receives first response information sent by the second terminal device, where the first response information includes response information to the first request information.
The method according to claim 13, wherein when the response information included in the first response information for the first request information is an acknowledgment ACK, the first response information includes the target The resource pool configuration corresponding to the business.
The method according to claim 13 or 14, further comprising:

If the response information for the first request information included in the first response information is ACK, the first terminal device activates the first resource allocation mode corresponding to the target service.
The method according to any one of claims 1 to 15, further comprising:

The first terminal device determines to deactivate the first resource allocation mode corresponding to the target service.
The method according to claim 16, wherein the determining by the first terminal device to deactivate the first resource allocation mode corresponding to the target service comprises:

The first terminal device determines to deactivate the first resource allocation mode corresponding to the target service according to a second condition;

Wherein, the second condition includes at least one of the following:

When the first terminal device is within the coverage of the first network device and the first terminal device is in the RRC connection state, the first network device reconfigures the resource allocation mode for the first terminal device;

A radio link failure RLF occurs on the unicast link corresponding to the target service;

The reference signal received power RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

The channel busy rate CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

The first terminal device has a service to be transmitted with a priority higher than a priority threshold;

The first terminal device has a service to be transmitted whose QoS is higher than a QoS threshold.
The method of claim 17, further comprising:

The first terminal device sends fourth indication information to the second terminal device, where the fourth indication information is used to instruct the second terminal device to deactivate the first resource allocation mode corresponding to the target service.
The method according to claim 18, wherein the fourth indication information includes first cause information, and the first cause information is used to indicate deactivation of the first resource allocation mode corresponding to the target service. reason.
The method of claim 19, wherein,

If the second condition includes that the first terminal device is within the coverage of the first network device and the first terminal device is in the RRC connected state, the first network device re-establishes the first terminal device for the first terminal device. If the resource allocation mode is configured, the first cause information includes that the first network device has reconfigured the resource allocation mode for the first terminal device;

If the second condition includes that RLF occurs on the unicast link corresponding to the target service, the first cause information includes that RLF occurs on the unicast link corresponding to the target service;

If the second condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the first cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP RSRP threshold;

If the second condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, the first cause information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

If the second condition includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold, the first cause information includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold transmission business;

If the second condition includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the first cause information includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold.
The method according to claim 17 or 20, characterized in that,

The sideline RSRP threshold is pre-configured or agreed by the protocol, or the sideline RSRP threshold is configured by the first network device;

and / or,

The CBR threshold is pre-configured or agreed upon in an agreement, or the CBR threshold is configured by the first network device;

and / or,

The priority threshold is pre-configured or agreed by an agreement, or the priority threshold is configured by the first network device;

and / or,

The QoS threshold is pre-configured or agreed by an agreement, or the QoS threshold is configured by the first network device.
The method according to any one of claims 16 to 21, further comprising:

The first terminal device switches a resource allocation mode corresponding to the target service from the first resource allocation mode to a second resource allocation mode.
The method according to claim 22, wherein the first terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode, comprising:

The first terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to a second resource allocation mode according to the resource allocation mode priority information;

Wherein, the priority of the second resource allocation mode is lower than that of the first resource allocation mode.
The method according to claim 23, wherein the resource allocation mode priority information is pre-configured or agreed by an agreement, or the resource allocation mode priority information is configured by the first network device.
A method for wireless communication, comprising:

The second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service;

Wherein, the first resource allocation mode is a mode in which the second terminal device schedules the first terminal device through a unicast connection.
The method according to claim 25, wherein the second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service, comprising:

In a case where the first terminal device determines that the target service corresponds to the first resource allocation mode, the second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service.
The method of claim 26, further comprising:

The second terminal device receives third indication information sent by the first terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode.
The method according to any one of claims 25 to 27, wherein the second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service, including:

The second terminal device determines that it has the ability to activate the first resource allocation mode corresponding to the target service according to a third condition; wherein the third condition includes at least one of the following:

The channel busy rate CBR of the resource pool configured for the target service is less than the CBR threshold;

The reference signal received power RSRP of the unicast link corresponding to the target service is higher than the sidelink RSRP threshold;

The number of unicast scheduled connections is not greater than the maximum capability value of the second terminal device;

The number of unicast scheduling connections is not greater than the connection threshold;

There is no service to be transmitted with a priority higher than a priority threshold in the second terminal device;

The second terminal device does not have a service to be transmitted whose quality of service QoS is higher than a QoS threshold.
The method according to any one of claims 25 to 28, further comprising:

The second terminal device receives and sends first indication information to the first terminal device, where the first indication information is used to indicate that the second terminal device has the first resource allocation mode corresponding to activating the target service Ability.
The method according to any one of claims 25 to 29, further comprising:

When the second terminal device is within the coverage of the second network device and the second terminal device is in a radio resource control RRC connected state, the second terminal device sends terminal assistance information to the first terminal device through a direct link The second network device sends a scheduling request for the target service;

The second terminal device receives fifth indication information sent by the second network device, where the fifth indication information is used to indicate approval of the second terminal device's scheduling request for the target service.
The method according to claim 30, wherein the fifth indication information further includes resource pool configuration corresponding to the target service.
The method according to any one of claims 25 to 31, further comprising:

The second terminal device receives first request information sent by the first terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.
The method of claim 32, further comprising:

The second terminal device sends first response information to the first terminal device, where the first response information includes response information to the first request information.
The method according to claim 33, wherein when the response information included in the first response information for the first request information is an acknowledgment ACK, the first response information includes the target The resource pool configuration corresponding to the business.
The method according to any one of claims 25 to 34, further comprising:

The second terminal device activates the first resource allocation mode corresponding to the target service.
The method according to any one of claim 35, further comprising:

The second terminal device determines to deactivate the first resource allocation mode corresponding to the target service.
The method according to claim 36, wherein the second terminal device determines to deactivate the first resource allocation mode corresponding to the target service, comprising:

The second terminal device determines to deactivate the first resource allocation mode corresponding to the target service according to a fourth condition;

Wherein, the fourth condition includes at least one of the following:

When the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connection state, the second network device reconfigures the resource allocation mode for the second terminal device;

A radio link failure RLF occurs on the unicast link corresponding to the target service;

The reference signal received power RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

The channel busy rate CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

The second terminal device has a service to be transmitted with a priority higher than a priority threshold;

The second terminal device has a service to be transmitted whose QoS is higher than a QoS threshold.
The method of claim 37, further comprising:

The second terminal device sends sixth indication information to the first terminal device, where the sixth indication information is used to instruct the first terminal device to deactivate the first resource allocation mode corresponding to the target service.
The method according to claim 38, wherein the sixth indication information includes second cause information, and the second cause information is used to indicate deactivation of the first resource allocation mode corresponding to the target service. reason.
The method of claim 39, wherein,

If the fourth condition includes that the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connected state, the second network device re- If the resource allocation mode is configured, the second cause information includes that the second network device has reconfigured the resource allocation mode for the second terminal device;

If the fourth condition includes that RLF occurs on the unicast link corresponding to the target service, the second cause information includes that RLF occurs on the unicast link corresponding to the target service;

If the fourth condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the second cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP RSRP threshold;

If the fourth condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, the second reason information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

If the fourth condition includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold, the second cause information includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold transmission business;

If the fourth condition includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the second cause information includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold.
A method as claimed in claim 28, 37 or 40 wherein,

The sideline RSRP threshold is pre-configured or agreed by the protocol, or the sideline RSRP threshold is configured by the first network device;

and / or,

The CBR threshold is pre-configured or agreed upon in an agreement, or the CBR threshold is configured by the first network device;

and / or,

The priority threshold is pre-configured or agreed by an agreement, or the priority threshold is configured by the first network device;

and / or,

The QoS threshold is pre-configured or agreed by an agreement, or the QoS threshold is configured by the first network device.
The method according to any one of claims 36 to 41, further comprising:

The second terminal device switches a resource allocation mode corresponding to the target service from the first resource allocation mode to a second resource allocation mode.
The method according to claim 42, wherein the second terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode, comprising:

The second terminal device switches the resource allocation mode corresponding to the target service from the first resource allocation mode to a second resource allocation mode according to the resource allocation mode priority information;

Wherein, the priority of the second resource allocation mode is lower than that of the first resource allocation mode.
The method according to claim 43, wherein the resource allocation mode priority information is pre-configured or agreed upon in an agreement, or the resource allocation mode priority information is configured by the second network device.
A terminal device, characterized in that the terminal device is a first terminal device, and the terminal device includes:

a processing unit, configured to determine that the target service corresponds to the first resource allocation mode;

Wherein, the first resource allocation mode is a mode in which the second terminal device schedules the first terminal device through a unicast connection.
The terminal device according to claim 45, wherein the processing unit is specifically used for:

If the second terminal device has a resource scheduling capability for the target service, determine that the target service corresponds to the first resource allocation mode.
The terminal device according to claim 46, further comprising: a communication unit,

The communication unit is configured to receive first indication information sent by the second terminal device, where the first indication information is used to indicate that the second terminal device has a resource scheduling capability for the target service.
The terminal device according to any one of claims 45 to 47, wherein the processing unit is specifically configured to:

determining that the target service corresponds to the first resource allocation mode according to a first condition;

Wherein, the first condition includes at least one of the following: the first terminal device is out of network coverage, the sensing result of the first terminal device is unavailable, and the second terminal device has Resource scheduling capabilities.
The terminal device according to claim 46 or 48, wherein whether the second terminal device has the resource scheduling capability for the target service is determined by the first terminal device on the side establishing with the second terminal device Obtained during the connection process.
The terminal device according to any one of claims 45 to 47, wherein the processing unit is specifically configured to:

determining that the target service corresponds to the first resource allocation mode according to the first correspondence;

Wherein, the first correspondence includes a correspondence between first information and at least one resource selection mode, the at least one resource selection mode includes the first resource allocation mode, and the first information includes at least one of the following : Quality of service QoS, service priority, side row resource block, destination identification, communication type, resource pool, geographic location area identification.
The terminal device according to claim 50, wherein the processing unit is specifically used for:

Determine that the target service corresponds to the first resource allocation mode according to the first information corresponding to the first terminal device and the first correspondence.
The terminal device according to claim 50 or 51, wherein the first correspondence is pre-configured or stipulated in a protocol, or the first correspondence is a system message or dedicated signaling of the first network device configured.
The terminal device according to any one of claims 45 to 47, wherein the processing unit is specifically configured to:

Determining that the target service corresponds to the first resource allocation mode according to an instruction of the first network device.
The terminal device according to claim 53, wherein the terminal device further comprises a communication unit;

When the first terminal device is within the coverage of the first network device, and the first terminal device is in a radio resource control RRC connection state, the communication unit is configured to send terminal assistance information to the terminal through a direct link The first network device sends the target service;

The communication unit is configured to receive second indication information sent by the first network device, where the second indication information is used to indicate that the target service corresponds to the first resource allocation mode.
The terminal device according to any one of claims 45 to 54, wherein the terminal device further comprises:

A communication unit, configured to send third indication information to the second terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode.
The terminal device according to any one of claims 45 to 55, wherein the terminal device further comprises:

A communication unit, configured to send first request information to the second terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.
The terminal device according to claim 56, wherein the communication unit is further configured to receive first response information sent by the second terminal device, the first response information including Response message.
The terminal device according to claim 57, wherein when the response information included in the first response information for the first request information is an acknowledgment ACK, the first response information includes the Resource pool configuration corresponding to the target business.
The terminal device according to claim 57 or 58, characterized in that,

If the response information for the first request information included in the first response information is ACK, the processing unit is further configured to activate the first resource allocation mode corresponding to the target service.
The terminal device according to any one of claims 45 to 59, wherein the processing unit is further configured to determine to deactivate the first resource allocation mode corresponding to the target service.
The terminal device according to claim 60, wherein the processing unit is specifically used for:

determining to deactivate the first resource allocation mode corresponding to the target service according to a second condition;

Wherein, the second condition includes at least one of the following:

When the first terminal device is within the coverage of the first network device and the first terminal device is in the RRC connection state, the first network device reconfigures the resource allocation mode for the first terminal device;

A radio link failure RLF occurs on the unicast link corresponding to the target service;

The reference signal received power RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

The channel busy rate CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

The first terminal device has a service to be transmitted with a priority higher than a priority threshold;

The first terminal device has a service to be transmitted whose QoS is higher than a QoS threshold.
The terminal device according to claim 61, further comprising: a communication unit,

The communication unit is configured to send fourth indication information to the second terminal device, where the fourth indication information is used to instruct the second terminal device to deactivate the first resource allocation mode corresponding to the target service.
The terminal device according to claim 62, wherein the fourth indication information includes first cause information, and the first cause information is used to indicate deactivation of the first resource allocation mode corresponding to the target service s reason.
The terminal device according to claim 63, characterized in that,

If the second condition includes that the first terminal device is within the coverage of the first network device and the first terminal device is in the RRC connected state, the first network device re-establishes the first terminal device for the first terminal device. If the resource allocation mode is configured, the first cause information includes that the first network device has reconfigured the resource allocation mode for the first terminal device;

If the second condition includes that RLF occurs on the unicast link corresponding to the target service, the first cause information includes that RLF occurs on the unicast link corresponding to the target service;

If the second condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the first cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP RSRP threshold;

If the second condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, the first cause information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

If the second condition includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold, the first cause information includes that the first terminal device has a service to be transmitted with a priority higher than the priority threshold transmission business;

If the second condition includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the first cause information includes that the first terminal device has a service to be transmitted with a QoS higher than the QoS threshold.
The terminal device according to claim 61 or 64, characterized in that,

The sideline RSRP threshold is pre-configured or agreed by the protocol, or the sideline RSRP threshold is configured by the first network device;

and / or,

The CBR threshold is pre-configured or agreed upon in an agreement, or the CBR threshold is configured by the first network device;

and / or,

The priority threshold is pre-configured or agreed by an agreement, or the priority threshold is configured by the first network device;

and / or,

The QoS threshold is pre-configured or agreed by an agreement, or the QoS threshold is configured by the first network device.
The terminal device according to any one of claims 60 to 65, wherein the processing unit is further configured to switch the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode Allocation mode.
The terminal device according to claim 66, wherein the processing unit is specifically used for:

switching the resource allocation mode corresponding to the target service from the first resource allocation mode to a second resource allocation mode according to the resource allocation mode priority information;

Wherein, the priority of the second resource allocation mode is lower than that of the first resource allocation mode.
The terminal device according to claim 67, wherein the resource allocation mode priority information is pre-configured or agreed upon in an agreement, or the resource allocation mode priority information is configured by the first network device.
A terminal device, characterized in that the terminal device is a second terminal device, and the terminal device includes:

a processing unit, configured to determine that the second terminal device has the ability to activate the first resource allocation mode corresponding to the target service;

Wherein, the first resource allocation mode is a mode in which the second terminal device schedules the first terminal device through a unicast connection.
The terminal device according to claim 69, wherein the processing unit is specifically used for:

In a case where the first terminal device determines that the target service corresponds to the first resource allocation mode, determine that the second terminal device has a capability of activating the first resource allocation mode corresponding to the target service.
The terminal device according to claim 70, wherein the terminal device further comprises:

A communication unit, configured to receive third indication information sent by the first terminal device, where the third indication information is used to instruct the first terminal device to determine that the target service corresponds to the first resource allocation mode.
The terminal device according to any one of claims 69 to 71, wherein the processing unit is specifically configured to:

Determining that it has the ability to activate the first resource allocation mode corresponding to the target service according to a third condition; wherein the third condition includes at least one of the following:

The channel busy rate CBR of the resource pool configured for the target service is less than the CBR threshold;

The reference signal received power RSRP of the unicast link corresponding to the target service is higher than the sidelink RSRP threshold;

The number of unicast scheduled connections is not greater than the maximum capability value of the second terminal device;

The number of unicast scheduling connections is not greater than the connection threshold;

There is no service to be transmitted with a priority higher than a priority threshold in the second terminal device;

The second terminal device does not have a service to be transmitted whose quality of service QoS is higher than a QoS threshold.
The terminal device according to any one of claims 69 to 72, wherein the terminal device further comprises:

A communication unit, configured to receive and send first indication information to the first terminal device, where the first indication information is used to indicate that the second terminal device has activated the first resource allocation mode corresponding to the target service ability.
The terminal device according to any one of claims 69 to 73, wherein the terminal device further comprises: a communication unit, wherein,

When the second terminal device is within the coverage of the second network device and the second terminal device is in a radio resource control RRC connected state, the communication unit is configured to send terminal assistance information to the second terminal device through a direct link The second network device sends a scheduling request for the target service;

The communication unit is configured to receive fifth indication information sent by the second network device, where the fifth indication information is used to indicate approval of the second terminal device's scheduling request for the target service.
The terminal device according to claim 74, wherein the fifth indication information further includes resource pool configuration corresponding to the target service.
The terminal device according to any one of claims 69 to 75, wherein the terminal device further comprises:

A communication unit, configured to receive first request information sent by the first terminal device, where the first request information is used to request the second terminal device to perform resource scheduling on the first terminal device.
The terminal device according to claim 76, wherein the terminal device further comprises:

A communication unit, configured to send first response information to the first terminal device, where the first response information includes response information to the first request information.
The terminal device according to claim 77, wherein when the response information included in the first response information for the first request information is an acknowledgment ACK, the first response information includes the Resource pool configuration corresponding to the target business.
The terminal device according to any one of claims 69 to 78, wherein the processing unit is further configured to activate the first resource allocation mode corresponding to the target service.
The terminal device according to any one of claims 79, wherein the processing unit is further configured to determine to deactivate the first resource allocation mode corresponding to the target service.
The terminal device according to claim 80, wherein the processing unit is specifically used for:

determining to deactivate the first resource allocation mode corresponding to the target service according to a fourth condition;

Wherein, the fourth condition includes at least one of the following:

When the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connection state, the second network device reconfigures the resource allocation mode for the second terminal device;

A radio link failure RLF occurs on the unicast link corresponding to the target service;

The reference signal received power RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold;

The channel busy rate CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

The second terminal device has a service to be transmitted with a priority higher than a priority threshold;

The second terminal device has a service to be transmitted whose QoS is higher than a QoS threshold.
The terminal device according to claim 81, wherein the terminal device further comprises:

A communication unit, configured to send sixth indication information to the first terminal device, where the sixth indication information is used to instruct the first terminal device to deactivate the first resource allocation mode corresponding to the target service.
The terminal device according to claim 82, wherein the sixth indication information includes second cause information, and the second cause information is used to indicate deactivation of the first resource allocation mode corresponding to the target service s reason.
The terminal device according to claim 83, characterized in that,

If the fourth condition includes that the second terminal device is within the coverage of the second network device and the second terminal device is in the RRC connected state, the second network device re- If the resource allocation mode is configured, the second cause information includes that the second network device has reconfigured the resource allocation mode for the second terminal device;

If the fourth condition includes that RLF occurs on the unicast link corresponding to the target service, the second cause information includes that RLF occurs on the unicast link corresponding to the target service;

If the fourth condition includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP threshold, the second cause information includes that the RSRP of the unicast link corresponding to the target service is lower than the sidelink RSRP RSRP threshold;

If the fourth condition includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold, the second reason information includes that the CBR of the sending resource pool corresponding to the target service is greater than the CBR threshold;

If the fourth condition includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold, the second cause information includes that the second terminal device has a service to be transmitted with a priority higher than the priority threshold transmission business;

If the fourth condition includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold, the second cause information includes that the second terminal device has a service to be transmitted with a QoS higher than the QoS threshold.
A terminal device as claimed in claim 72, 81 or 84, characterized in that,

The sideline RSRP threshold is pre-configured or agreed by the protocol, or the sideline RSRP threshold is configured by the first network device;

and / or,

The CBR threshold is pre-configured or agreed upon in an agreement, or the CBR threshold is configured by the first network device;

and / or,

The priority threshold is pre-configured or agreed by an agreement, or the priority threshold is configured by the first network device;

and / or,

The QoS threshold is pre-configured or agreed by an agreement, or the QoS threshold is configured by the first network device.
The terminal device according to any one of claims 80 to 85, wherein the processing unit is further configured to switch the resource allocation mode corresponding to the target service from the first resource allocation mode to the second resource allocation mode. Allocation mode.
The terminal device according to claim 86, wherein the processing unit is specifically used for:

switching the resource allocation mode corresponding to the target service from the first resource allocation mode to a second resource allocation mode according to the resource allocation mode priority information;

Wherein, the priority of the second resource allocation mode is lower than that of the first resource allocation mode.
The terminal device according to claim 87, wherein the resource allocation mode priority information is pre-configured or agreed upon in a protocol, or the resource allocation mode priority information is configured by the second network device.
A terminal device, characterized by comprising: 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 of the following claims 1 to 24 one of the methods described.
A terminal device, characterized by comprising: 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 of the following claims 25 to 44 one of the methods described.
A chip, characterized by comprising: a processor, configured to invoke and run 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 24.
A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 25 to 44.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causes a computer to execute the method according to any one of claims 1 to 24.
A computer-readable storage medium, characterized in that it is used to store a computer program, the computer program causes a computer to execute the method according to any one of claims 25 to 44.
A computer program product, characterized by comprising computer program instructions, the computer program instructions cause a computer to execute the method according to any one of claims 1 to 24.
A computer program product, characterized by comprising computer program instructions, the computer program instructions cause a computer to execute the method according to any one of claims 25 to 44.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1-24.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 25-44.