WO2023010547A1

WO2023010547A1 - Communication method, terminal and network device

Info

Publication number: WO2023010547A1
Application number: PCT/CN2021/111250
Authority: WO
Inventors: 冷冰雪; 卢前溪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-09
Also published as: CN117242860A

Abstract

Provided are a communication method, a terminal and a network device. The method comprises: a first terminal sending first information to a first network device, wherein the first information indicates that the first terminal has the capability of scheduling a sidelink resource for a second terminal; and the first terminal receiving first configuration information sent by the first network device, wherein the first configuration information configures the first terminal to be a scheduling terminal. In the embodiments of the present application, a first terminal sends first information to a first network device, so as to inform the first network device that the first terminal has the capability of scheduling a sidelink resource for a second terminal, thereby facilitating an improvement in the rationality of allocating the sidelink resource by the first network device. The situation where a sidelink resource allocated by the first network device is irrational due to the first network device not knowing that the first terminal serves as a scheduling terminal after the first terminal autonomously determines to serve as the scheduling terminal is prevented.

Description

Communication method, terminal and network equipment

technical field

The present application relates to the field of communication technologies, and more specifically, to a communication method, terminal and network equipment.

Background technique

Currently, a sidelink resource allocation method in which a terminal schedules sidelink resources for other terminals is being discussed, and this method is also called "Mode 2d". Mode 2d has some problems when it is compatible with the existing sidelink resource allocation methods.

In the existing protocol, for a terminal in the connected state, the sidelink resources of the terminal need to be scheduled by network equipment. If the terminal independently determines that it can be used as a scheduling terminal in mode 2d or be scheduled terminal, it will cause the sidelink resources configured by the network device for the terminal to be unreasonable.

Contents of the invention

The present application provides a communication method, a terminal and a network device, so as to improve the rationality of sidelink resource allocation.

In a first aspect, a communication method is provided, including: a first terminal sends first information to a first network device, the first information indicating that the first terminal has the ability to schedule sidelink resources for a second terminal ; The first terminal receives first configuration information sent by the first network device, where the first configuration information configures the first terminal as a scheduling terminal.

In a second aspect, a communication method is provided, including: a second terminal sends fourth information to a second network device, where the fourth information indicates that the second terminal has a demand for sidelink resource scheduling by the first terminal; The second terminal receives second configuration information sent by the second network device, where the second configuration information configures the second terminal as a scheduled terminal.

In a third aspect, a communication method is provided, including: a first network device receiving first information sent by a first terminal, the first information indicating that the first terminal has the ability to schedule sidelink resources for the second terminal ; The first network device sends first configuration information to the sending first terminal, where the first configuration information configures the first terminal as a scheduling terminal.

In a fourth aspect, a communication method is provided, including: a second network device receiving fourth information sent by a second terminal, the fourth information indicating that the second terminal has a demand for sidelink resources scheduled by the first terminal ; The second network device sends second configuration information to the second terminal, where the second configuration information configures the second terminal as a scheduled terminal.

In a fifth aspect, a communication method is provided, including: the first terminal sends a plurality of sixth information, and the sixth information is one or more of a sidelink discovery message, a PC5-S message, and a PC5-RRC message The first terminal receives the reply information for the sixth information sent by the second terminal; wherein, the time domain resources occupied by the multiple sixth information are different; the frequency domain resources occupied by the multiple sixth information The resources are different; and/or the beam directions of the multiple beams transmitting the multiple pieces of sixth information are different.

In a sixth aspect, a first terminal is provided, including: a sending unit, configured to send a plurality of sixth information, where the sixth information is one of a sidelink discovery message, a PC5-S message, and a PC5-RRC message one or more types; a receiving unit, configured to receive reply information for the sixth information sent by the second terminal; wherein, the time domain resources occupied by the multiple sixth information are different; the multiple sixth information occupies different frequency domain resources; and/or beam directions of multiple beams transmitting the multiple pieces of sixth information are different.

In a seventh aspect, a communication method is provided, including: the first terminal acquires configuration information of a first side link resource pool, where the configuration information is used to indicate that the first side link resource pool supports multiple resource configurations different resource allocation modes among the multiple resource allocation modes have different priorities.

In an eighth aspect, there is provided a first terminal device, including: an acquiring unit, configured to acquire configuration information of a first side link resource pool, where the configuration information is used to indicate that the first side link resource pool supports There are multiple resource allocation modes, and different resource allocation modes in the multiple resource allocation modes have different priorities.

In the ninth aspect, there is provided a terminal, including a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute the first aspect, the second aspect or the fifth aspect the method described.

In a tenth aspect, a network device is provided, including a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the method described in the third aspect or the fourth aspect .

In an eleventh aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the first aspect, the second aspect, or the fifth aspect.

In a twelfth aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the third aspect or the fourth aspect.

A thirteenth aspect provides a chip, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the first aspect, the second aspect, or the fifth aspect.

In a fourteenth aspect, a chip is provided, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the third aspect or the fourth aspect.

In a fifteenth aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the first aspect, the second aspect or the fifth aspect.

In a sixteenth aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the third aspect or the fourth aspect.

A seventeenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the first aspect, the second aspect or the fifth aspect.

In an eighteenth aspect, a computer program product is provided, including a program, the program causes a computer to execute the method described in the third aspect or the fourth aspect.

A nineteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the first aspect, the second aspect or the fifth aspect.

In a twentieth aspect, a computer program is provided, the computer program causes a computer to execute the method described in the third aspect or the fourth aspect.

In this embodiment of the present application, the first terminal sends the first information to the first network device to inform the first network device that the first terminal has the ability to schedule sidelink resources for the second terminal, which is beneficial to improve the first network Rationality of device allocation of sidelink resources. It is avoided that after the first terminal is independently determined as the scheduling terminal, the first network device does not know that the first terminal is used as the scheduling terminal, resulting in unreasonable sidelink resources allocated by the first network device.

In addition, the second terminal sends the fourth information to the second network device to inform the second network device that the second terminal needs to be scheduled by the first terminal for sidelink resources, which is beneficial to improve the utilization rate of sidelink resources This avoids the problem that after the second terminal autonomously determines as the scheduling terminal, the second network device does not know that the second terminal is the scheduled terminal, and still allocates sidelink resources to the second terminal, resulting in waste of sidelink resources.

Description of drawings

FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application.

Fig. 2 shows a flowchart of sidelink resource allocation in Mode 2b.

FIG. 3 is a flow chart of a communication method according to an embodiment of the present application.

FIG. 4 shows a schematic diagram of sidelink resource configuration in sidelink resource pool 1 .

Fig. 5 is a flowchart of a communication method according to another embodiment of the present application.

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

Fig. 7 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 8 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 9 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 10 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 11 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 12 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 13 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 14 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 15 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 16 is a flowchart of a communication method according to another embodiment of the present application.

Fig. 17 is a schematic diagram of a first terminal in an embodiment of the present application.

FIG. 18 is a schematic diagram of a second terminal according to an embodiment of the present application.

Fig. 19 is a schematic diagram of a first network device according to an embodiment of the present application.

FIG. 20 is a schematic diagram of a second network device according to an embodiment of the present application.

Fig. 21 is a schematic diagram of a first terminal according to another embodiment of the present application.

Fig. 22 is a schematic diagram of a first terminal according to another embodiment of the present application.

Fig. 23 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120 . The network device 110 may be a device that communicates with the terminal device 120 . The network device 110 can provide communication coverage for a specific geographical area, and can communicate with the terminal device 120 located in the coverage area.

In some implementation manners, terminal devices may communicate with each other through a sidelink (sidelink, SL). Sidelink communication can also be called proximity services (proximity services, ProSe) communication, unilateral communication, side chain communication, device to device (device to device, D2D) communication.

FIG. 1 exemplarily shows one network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system , LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, and satellite communication systems, and so on.

The terminal equipment in the embodiment of the present application may also be called user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) ), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and can be used to connect people, objects and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like. The terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. Optionally, UE can be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cell phone and an automobile communicate with each other using sidelink signals. Communication between cellular phones and smart home devices without relaying communication signals through base stations.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station. The network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network. The base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (access point, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, a modem or a chip configured in the aforementioned equipment or device. The base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network. Network-side equipment, equipment that assumes base station functions in future communication systems, etc. Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.

Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to serve as a device in communication with another base station.

In some deployments, the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU. A gNB may also include an AAU.

Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air. In the embodiment of the present application, the scenarios where the network device and the terminal device are located are not limited.

It should be understood that all or part of the functions of the communication device in this application may also be realized by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform).

In order to facilitate the understanding of this application, the following first introduces the research direction of the sidelink at different research stages.

In the public versions (release, Rel-) 12 to Rel-13 of the 3rd generation partnership project (3rd generation partnership project, 3GPP) specification, researches are mainly carried out on ProSe scenarios. This scenario can be applied to the transmission of public safety services.

In ProSe, based on the terminal's power-saving requirements and the characteristics of service transmission, the terminal can be scheduled to send/receive data discontinuously by configuring the resource pool to be discontinuous in the time domain.

In Rel-14 and Rel-15 of the 3GPP specification, the scenarios of vehicle-to-vehicle communication in the Internet of Vehicles are mainly studied. For example, vehicle-to-vehicle communication and communication requirements in vehicle-to-people traffic scenarios are discussed.

In V2X, since the vehicle-mounted terminal usually has a power supply system with sustainable power supply, for the vehicle-mounted terminal, transmission power and power consumption are not the main problems. The main problem of vehicle terminal communication is how to reduce data transmission delay. Therefore, terminals can be scheduled for continuous transmission and reception.

In the LTE D2D further enhancements (further enhancements to LTE Device to Device, FeD2D) project discussed in Rel-14 of the 3GPP specification, the scenario of low mobile speed and low power terminals accessing network devices is mainly studied. For example, a scenario where a wearable device accesses the network through a mobile phone.

In FeD2D, the main research is that the network device can configure the Discontinuous Reception (DRX) parameters of the remote terminal through the relay terminal.

Based on the sidelink described above, the configuration mode of sidelink resources is introduced below.

Currently, in some communication systems (for example, NR), two resource configuration modes of sidelink resources are defined, Mode 1 and Mode 2.

In mode 1, the network device schedules sidelink resources for the terminal.

Currently, Mode 1 can be divided into two modes: dynamic resource allocation (dynamic resource allocation) and sidelink configured grant (SLCG). Under dynamic resource configuration, the network device can allocate sidelink transmission resources for the terminal by sending downlink control information (DCI). In the sidelink configuration authorization mode, after the terminal is configured with sidelink resources, if the terminal has data to be sent, the terminal can use the configured sidelink resources to transmit data without resetting to the network device. Apply for sidelink resources. Therefore, the transmission delay of the sidelink can be reduced by adopting the resource configuration mode of configuring the grant.

The above configuration authorization is subdivided into two types. In Type 1 configuration authorization (Type1), sidelink resource configuration is completely based on radio resource control (radio resource control, RRC) signaling. In Type 2 (Type2) of configuration authorization, the sidelink resource configuration in the communication system can be configured jointly by RRC signaling and layer 1 (layer 1, L1) signaling, where L1 signaling is used to indicate the RRC configuration Activation and deactivation.

In some implementations, the network device may schedule sidelink resources for a single transmission for the terminal. In other implementation manners, the network device may also configure semi-static sidelink resources for the terminal.

In mode 2, the terminal independently selects sidelink resources in the resource pool.

In this mode, the process performed by the terminal includes a resource detection process and/or a resource selection process. During the resource detection process, the terminal can identify the occupancy of sidelink resources by demodulating sidelink control information (sidelink control information, SCI). The terminal can also identify the occupancy of sidelink resources by measuring the received power of the sidelink.

As introduced above, with the development of the sidelink communication technology, more and more types of terminals are included in the communication system, for example, wearable devices. Usually, such terminals have low capabilities and cannot autonomously select sidelink resources. Therefore, based on the above-mentioned mode 2, 3GPP discusses two other resource allocation modes for supplementing the mode 2. For ease of description, the above-mentioned mode 2 is referred to as "mode 2a" hereinafter, and the other two resource allocation modes are respectively referred to as "mode 2b" and "mode 2d". The embodiment of the present application does not specifically limit the name of the resource configuration mode.

Mode 2b, Inter-UE coordination (Inter-UE coordination) resource configuration mode, or it can be understood that the terminal can assist other terminals to select sidelink resources.

The range of sidelink resources that each terminal can detect is limited. If the sidelink resources to be detected are far away from the terminal, the accuracy of the terminal's detection of the sidelink resources will be affected. Therefore, the resource allocation method of the above-mentioned mode 2b is proposed.

For example, if terminal 1 is far away from sidelink resource 1, when terminal 1 detects the received power of the signal on sidelink resource 1, the detected received power of sidelink resource 1 may be low, and the decision side The uplink resource 1 is an idle resource, and the sidelink resource 1 is reserved as the sidelink resource of the terminal 1 . However, the received power of the signal on the side link resource 1 is actually relatively high, but the received power of the signal on the side link resource 1 is attenuated because the terminal 1 is far away from the side link resource. In this case, when the terminal 1 communicates on the sidelink resource 1, it will interfere with a signal originally transmitted on the sidelink resource 1, that is, a resource collision occurs.

In order to avoid the occurrence of the above-mentioned resource collision, the terminal 2 that is closer to the sidelink resource 1 may be configured to assist the terminal 1 in resource detection. That is, the terminal 2 performs resource detection on the sidelink resource 1, and sends the detection result to the terminal 1, and the terminal 1 judges whether to select the sidelink resource 1 for communication.

Referring to FIG. 2 , assuming that terminal B is a terminal in mode 2a, terminal A may send the selected sidelink resource set to terminal B through assistance information, and assist terminal B in selecting sidelink resources.

Based on the current discussion results, the above sidelink resource set may be defined in two ways:

Mode 1, the foregoing sidelink resource set is a preferred and/or non-preferred resource set for terminal B to transmit.

Mode 2, the above-mentioned side link resource set includes the side link resources indicated by the terminal B through the side link control information SCI with expected, potential and/or detected resource conflicts.

It should be noted that the above-mentioned mode 2b can be used in conjunction with the other two modes (namely, mode 2a and mode 2d).

In mode 2d, the terminal schedules sidelink resources for other terminals.

In this mode, terminal 1 can serve as a scheduling terminal, and schedule other terminals (also called "scheduled terminals") to communicate on sidelink resources. In some implementation manners, terminal 1 may send scheduling information to other terminals, where the scheduling information is used to schedule other terminals to communicate on specific sidelink resources.

Generally, mode 2d can be further subdivided into two resource allocation modes: resource allocation mode 1 in mode 2d and resource allocation mode 2 in mode 2d.

In resource configuration mode 1 in mode 2d, the scheduling terminal can autonomously select sidelink resources for the scheduled terminal, or in other words, the scheduling terminal selects sidelink resources for the scheduled terminal through resource detection (for example, hereinafter first sidelink resource).

For the specific resource detection method, please refer to the relevant introduction of mode 2a above, and for the sake of brevity, details will not be repeated here.

In resource configuration mode 2 in mode 2d, the scheduling terminal selects sidelink resources for the scheduled terminal based on the sidelink resource pool configured by the network device for the scheduled terminal (for example, the first sidelink resource hereinafter road resources).

It should be understood that the above scheduled terminals may include one or more terminals. That is to say, the above scheduled terminals may be a group of terminals.

At present, whether the mode 2d introduced above will be standardized is still in the discussion stage, and there will be some problems when mode 2d is compatible with existing communication standards. In the existing protocol, for a terminal in the connected state, the sidelink resources of the terminal need to be scheduled by network equipment. If the terminal independently determines that it can be used as a scheduling terminal in mode 2d or be scheduled Terminal, it will cause the sidelink resources configured by the network device for the terminal to be unreasonable, or resources will be wasted.

For example, if the terminal is a scheduling terminal in mode 2d, but the network device that the scheduling terminal accesses does not know, the network device may configure a resource pool for the scheduling terminal with a small amount of sidelink resources, which is not enough to support The scheduled terminal performs sidelink communication. At this time, even if the terminal has the scheduling capability of mode 2d, the scheduled terminal cannot communicate on the sidelink resources scheduled by the scheduling terminal.

For another example, if the terminal is a scheduled terminal in mode 2d, if the network device accessed by the scheduled terminal does not know, then the network device may continue to allocate sidelink resources to the scheduled terminal. Whether the scheduling terminal finally performs communication on the sidelink resource indicated by the network device or performs communication on the sidelink scheduled by the scheduling terminal will result in waste of another sidelink resource.

Therefore, in order to avoid the above problems, the present application provides a communication method, which is used for the terminal to report to the network device that it has the scheduling capability of mode 2d or has the scheduling requirement of mode 2d. The method in the embodiment of the present application will be introduced below with reference to FIG. 3 .

FIG. 3 is a flow chart of a communication method according to an embodiment of the present application. The process shown in FIG. 3 includes step S310 to step S340. Wherein, the interaction between a terminal with scheduling capability (hereinafter referred to as "first terminal") and a network device (hereinafter referred to as "first network device") accessed by the terminal is described in conjunction with steps S310 to S320. The interaction between a terminal with scheduled needs (hereinafter referred to as "second terminal") and a network device accessed by the terminal (hereinafter referred to as "second network device") is described in conjunction with steps S330 to S340.

Step S310, the first terminal sends first information to the first network device.

The foregoing first information indicates that the first terminal has a capability of scheduling sidelink resources for the second terminal. In other words, the first information indicates that the first terminal has a scheduling capability to schedule sidelink resources for the second terminal in mode 2d. In other words, the first information indicates that the first terminal requests to be the scheduling terminal of the second terminal in mode 2d.

The foregoing first information may be carried in RRC signaling, for example, may be carried in sidelink UE information. The above first information may also be carried in a media access control control element (media access control control element, MAC CE), for example, may be carried in a buffer status report (buffer status report, BSR). The foregoing first information may also be carried in physical layer signaling, for example, carried in uplink control information (uplink control information, UCI).

The above-mentioned first information may include one or more pieces of information. For example, the first information is a piece of information, and the first terminal may use a piece of information to indicate that the first network device itself has a scheduling capability, and that the scheduled terminal is the second terminal. For another example, the first information includes multiple pieces of information. The first terminal may use one piece of information to indicate that the first terminal has scheduling capability or Mode 2d scheduling capability, and the first terminal may also use another piece of information to indicate that the scheduled terminal is the second terminal.

Step S320, the first network device sends the first configuration information to the first terminal.

The first configuration information is used to configure the first terminal as a scheduling terminal. In other words, the first configuration information is used to configure the first terminal as a mode 2-based scheduling terminal.

The foregoing first configuration information may be carried in RRC signaling, MAC CE or physical layer signaling. For example, the first configuration information may be carried in downlink control information (downlink control information, DCI) in physical layer signaling.

In some cases, the first network device may also refuse to configure the first terminal as a scheduling terminal. In some implementation manners, the first network device may indicate to reject the first terminal as the scheduling terminal by sending information to the first terminal. In some other implementation manners, the first network device may also indicate to reject the first terminal as the scheduling terminal by not sending information to the first terminal. Correspondingly, after the first terminal does not receive the information sent by the first network device within a period of time, the first terminal may determine that the first network device rejects the first terminal as the scheduling terminal.

Step S330, the second terminal sends fourth information to the second network device.

The foregoing fourth information indicates that the second terminal has a requirement for scheduling sidelink resources by the first terminal. In other words, the fourth information indicates that the second terminal has a requirement for sidelink resource scheduling by the first terminal in mode 2d. In other words, the fourth information indicates that the second terminal requests to be the scheduled terminal of the first terminal in mode 2d.

The above fourth information may be carried in RRC signaling, for example, may be carried in sidelink UE information. The above fourth information can also be carried in the MAC CE, for example, it can be carried in the BSR. The foregoing fourth information may also be carried in physical layer signaling, for example, carried in UCI.

The above fourth information may include one or more pieces of information. For example, the fourth information is a piece of information through which the second terminal can indicate that the second network device itself has a scheduling requirement, and that the scheduling terminal is the first terminal. For another example, the first information includes multiple pieces of information, and the second terminal may use one piece of information to indicate that the second terminal has a scheduling requirement of other terminals or a scheduling requirement under mode 2d, and the second terminal may also use another piece of information to indicate that the scheduling terminal as the first terminal.

Step S340, the second network device sends second configuration information to the second terminal.

The second configuration information is used to configure the second terminal as a scheduled terminal. In other words, the second configuration information is used to configure the second terminal as a scheduled terminal based on mode 2.

The above-mentioned second configuration information may be carried in RRC signaling, MAC CE or physical layer signaling. For example, the second configuration information may be carried in DCI in physical layer signaling.

In some cases, the second network device may also refuse to configure the second terminal as the scheduled terminal. In some implementation manners, the second network device may indicate to reject the second terminal as the scheduled terminal by sending information to the second terminal. In some other implementation manners, the second network device may also indicate to reject the second terminal as the scheduled terminal by not sending information to the second terminal. Correspondingly, after the second terminal does not receive the information sent by the second network device within a period of time, the second terminal may determine that the second network device rejects the second terminal as the scheduling terminal.

It should be noted that, the foregoing first network device and the second network device may be the same network device, or may be different network devices. When the foregoing first network device and the second network device are the same network device, it may be understood that the first terminal and the second terminal have accessed the same network device. When the foregoing first network device and the second network device are different network devices, it can be understood that the first terminal and the second terminal respectively access different network devices.

In this embodiment of the present application, the second terminal sends fourth information to the second network device to inform the second network device that the second terminal has a demand for sidelink resource scheduling by the first terminal, which is beneficial to improve sidelink resource utilization. The utilization rate of road resources avoids that after the second terminal independently determines as the scheduling terminal, the second network device does not know that the second terminal is the scheduled terminal, and still allocates sidelink resources to the second terminal, resulting in sidelink The problem of wasting resources.

If the first terminal is a scheduling terminal and the second terminal is a scheduled terminal, the first terminal may schedule the second terminal to communicate on the sidelink resource. The sidelink resource used by the second terminal may be independently determined by the first terminal. For example, the first terminal may determine the sidelink resource used by the second terminal through resource detection.

However, when the first terminal independently selects the sidelink resources used by the second terminal, resource collision may occur in the sidelink resources selected by the first terminal for the second terminal because the first terminal supports half-duplex. question. Referring to Figure 4, assume that terminal 1 communicates on side link resource 1, and performs resource detection in side link resource pool 1, selects side link resources for terminal 2, and side link resource pool 1 There is also a sidelink resource 3 of terminal 3, and terminal 3 and terminal 1 send sidelink data at the same time and with the same transmission period.

Since the terminal 1 only supports a half-duplex working mode, that is to say, for the terminal 1, the two processes of transmitting data through the sidelink and performing resource detection cannot be performed simultaneously. When terminal 1 transmits data through the sidelink, resource detection cannot be performed. Or, when terminal 1 performs resource detection, it cannot transmit data through the sidelink. In this case, since terminal 3 and terminal 1 always send sidelink data at the same time and with the same transmission cycle, and terminal 3 does not send data when terminal 1 performs resource detection, terminal 1 During resource detection, it is not possible to detect data transmission by the terminal 3 on the sidelink resource 3 . Therefore, terminal 1 will determine that side link resource 3 is an idle resource, and schedule terminal 2 to perform data transmission on side link resource 3 . In this way, both the terminal 2 and the terminal 3 perform data transmission on the sidelink resource 3, which may cause resource collision.

Therefore, in order to avoid the above problems, this application also provides a resource configuration solution, in which the first network device directly configures sidelink resources (hereinafter referred to as "first sidelink resources") for the second terminal, and through the first network device The scheduling information sent by a terminal to the second terminal schedules the second terminal to communicate on the sidelink resource. That is to say, in the embodiment of the present application, the first terminal only needs to send the sidelink resource configured by the first network device for the second terminal to the second terminal, and resource detection is not required. That is, referring to FIG. 5 , the communication method in the embodiment of the present application further includes step S510 and step S520 .

In step S510, the first network device sends first resource configuration information to the first terminal. The first resource configuration information is used to configure the first side link resource of the second terminal.

In step S520, the first terminal sends scheduling information to the second terminal.

The foregoing scheduling information is used to schedule the second terminal to communicate on the first side link resource. In some implementation manners, the foregoing scheduling information may include configuration information of the first side link resource, where the configuration information of the first side link resource is used to configure the first side link resource for the second terminal.

The embodiment of the present application does not limit the transmission mode of the above-mentioned scheduling information. The above-mentioned scheduling information can be transmitted through the PC5 interface, and of course the above-mentioned scheduling information can also be transmitted through other interfaces.

In some implementation manners, the foregoing scheduling information may be sent to the second terminal in a unicast manner. In some other implementation manners, the above scheduling information may also be sent to the second terminal in a multicast manner. Certainly, the foregoing scheduling information may also be sent to the second terminal in a broadcast manner.

The above scheduling information can be carried in one or more of the following signaling: PC5-S, PC5-RRC, MAC CE, or physical layer signaling. Certainly, the foregoing scheduling information may also be transmitted through dedicated signaling, which is not limited in this embodiment of the present application.

In this embodiment of the application, since the sidelink resources of the second terminal are configured by the first network device, the first network device will consider other terminals under the coverage of the first network device (for example, the above The resource occupancy of the side link of the terminal 3) helps to improve the rationality of resource allocation, and avoids the problem of resource conflict caused when the first terminal independently selects side link resources.

Of course, in this embodiment of the present application, in order to improve the flexibility of resource configuration, the first network device may also configure a sidelink resource pool (hereinafter referred to as "first sidelink resource pool") for the second terminal through the first resource configuration information. In this way, the first terminal can select sidelink resources for the second terminal in the first sidelink resource pool.

In some implementation manners, the first terminal may perform resource detection in the first side link resource pool, and select the first side link resource for the second terminal. For example, when the above-mentioned first side link resource pool is a shared resource pool, the first terminal may perform resource detection in the first side link resource pool, and select the above-mentioned first side link resource for the second terminal .

In some other implementation manners, the first terminal may directly schedule the second terminal to communicate on some resources in the first sidelink resource pool. For example, in a case where the above-mentioned first side link resource pool is a dedicated resource pool, the first terminal may directly schedule the second terminal to perform communication on some resources in the first side link resource pool. For another example, when the first side link resource pool is the side link resource configured by the first network device for the first terminal and the second terminal, the first terminal provides itself in the first side link resource pool After selecting appropriate sidelink resources, the second terminal may be scheduled to communicate on the remaining sidelink resources. In this manner, the first terminal may not perform resource detection.

Optionally, the above-mentioned first resource configuration information includes one or more of the following information: the resource configuration mode supported by the first side link resource pool configured in the first resource configuration information; Resource detection is performed in the link resource pool; whether the first side link resource pool supports pre-emption (pre-emption) resources; whether the first side link resource pool supports resource re-evaluation (re-evaluation); and the first Whether the sidelink resource pool is a shared resource pool.

The above resource configuration modes supported by the first side link resource pool may include one or more resource configuration modes. For example, the resource configuration modes supported by the first side link resource pool may include one or more of the above-mentioned mode 1, mode 2a, mode 2b, and mode 2d.

The foregoing pre-preempting resources may be understood as whether the configured sidelink resources in the first sidelink resource pool can be preempted by other data to be transmitted or terminals with higher priority. For example, sidelink resource pool 1 supports pre-preemption resources, and the priority of sidelink resources configured based on mode 2d is lower than that of sidelink resources configured based on mode 1. After sidelink resource 1 in sidelink resource pool 1 is configured by terminal 1 to terminal 2 in mode 2d, the network device can preempt sidelink resource 1 in a pre-preemptive manner, and transfer the preempted Sidelink resource 1 is configured to terminal 3 .

The foregoing resource re-evaluation can be understood as, before using the configured side-link resources for communication, it is necessary to re-evaluate the configured side-link resources to determine whether the side-link resources are occupied. For example, side link resource pool 1 supports resource re-evaluation, and side link resource 1 in side link resource pool 1 is configured by terminal 1 in mode 2d to terminal 2 for communication, then terminal 2 is on the use side Before communicating on the uplink resource 1, the terminal 1 needs to re-evaluate the sidelink resource 1 to determine that the sidelink resource 1 is not occupied by other terminals. In some implementations, sidelink resources can be re-evaluated 3 slots before data is sent.

The foregoing shared resource pool can be understood as a resource pool shared by multiple terminals. For example, multiple terminals can acquire sidelink resources in the sidelink resource pool through multiple resource configuration methods, and then the sidelink resource pool is a shared resource pool. If the above-mentioned first side link resource pool is not a shared resource pool, it can be understood that the first side link resource pool is configured with side link resources by one or more terminals through a certain resource configuration method. At this time, the first side link resource pool One uplink resource pool is a dedicated resource pool corresponding to the above resource configuration mode.

In some implementation manners, the foregoing first resource configuration information may be carried in the first configuration information, and sent to the first terminal by the first network device. Of course, the above first resource configuration information may also be sent by the first network device to the first terminal through separate signaling. For example, the above-mentioned first resource configuration information may be carried in RRC signaling, MAC CE or physical layer signaling. In some implementation manners, the first resource configuration information may be carried in DCI of physical layer signaling.

When the first network device configures sidelink resources or sidelink resource pools for the second terminal, since the second terminal does not access the first network device, the first network device cannot determine the resources of the second terminal. The configuration parameters of the required sidelink resources lead to unreasonable sidelink resources or sidelink resource pools configured by the first network device for the second terminal. For example, the DRX configuration parameters of the second terminal enable the second terminal to wake up from the sleep state every 5ms, but since the first network device does not know the DRX configuration parameters of the second terminal, it may be configured for the sidelink of the second terminal The resources are transmitted every 3ms. In this way, the second terminal needs to be woken up every 3ms in order to perform lateral communication, which causes the terminal to be woken up frequently and cannot save the power of the second terminal to the maximum extent.

Therefore, in order to avoid the above problems, this application also proposes a resource configuration scheme, which can send the resource configuration parameters of the sidelink resources required by the second terminal to the first network device, so that the first network device can configure the resources according to the resource configuration parameters. Configure sidelink resources or sidelink resource pools for the second terminal. Continuing to refer to FIG. 5 , the communication method in the embodiment of the present application further includes step S530 and step S540 .

In step S530, the second terminal sends resource configuration parameters to the first terminal. Wherein, the resource configuration parameter is used to indicate the configuration parameter of the sidelink resource requested by the second terminal.

In step S540, the first terminal sends resource configuration parameters to the first network device.

The foregoing resource configuration parameter may be a specific parameter itself, for example, the time domain position of the sidelink resource requested by the second terminal, and the like. Of course, the above resource configuration parameters may also be indicated by one or more of the following information: the sidelink resource configured by the second network device for the second terminal; the second sidelink resource configured by the second network device for the second terminal Link resource pool; configuration information of the second side link resource pool; side link resources preconfigured for the second terminal; third side link resource pool preconfigured for the second terminal; and the third side Configuration information of the uplink resource pool.

Optionally, if the above resource configuration parameters are indicated by the above information, the first network device may configure sidelink resources or sidelink resource pools for the second terminal based on the resource configuration parameters indicated by the above information. In some implementation manners, the first network device may also directly configure the sidelink resource pool or the sidelink resource for the second terminal in the second sidelink resource pool or the third sidelink resource pool. For example, the first network device may also directly configure part or all of the resources in the second sidelink resource pool to the second terminal. For another example, the first network device may also directly configure part or all of the resources in the third sidelink resource pool to the second terminal. In some other implementation manners, the first network device may also directly configure the sidelink resource allocated by the second network device for the second terminal or the sidelink resource preconfigured by the second terminal to the second terminal.

In this embodiment of the application, the first network device may directly base on the side link resources configured by the second network device, the second side link resource pool, the side link resources pre-configured by the second terminal, or the third side link resources. The uplink resource pool refers to the sidelink resource or the sidelink resource pool configured for the second terminal, which helps to simplify the process of configuring resources for the second terminal by the first network device.

The above resource configuration parameters may be carried in RRC signaling, for example, may be carried in sidelink UE information. The above resource configuration parameters can also be carried in the MAC CE, for example, can be carried in the BSR. The above resource configuration parameters may also be carried in physical layer signaling, for example, carried in UCI.

It should be noted that the above resource configuration parameters are used to assist the first network device to configure sidelink resources or sidelink resource pools for the second terminal. Therefore, the information carrying the above resource configuration parameters may be called "assistance information". Certainly, other names may also be used for the above information, which is not limited in this embodiment of the present application.

As mentioned above, the first terminal serves as the scheduling terminal, and the second terminal serves as the scheduled terminal. When the first terminal schedules sidelink resources for the second terminal, or the first network device configures sidelink resources for the second terminal through the first terminal, it also needs to know the transmission requirements of the second terminal (for example, the second The amount of data to be transmitted by the terminal, the Qos required by the second terminal to transmit data, etc.), so as to reasonably configure sidelink resources for the second terminal. Therefore, continue referring to FIG. 5 , the above method further includes step S550 and step S560.

In step S550, the second terminal sends second information to the first terminal.

Wherein, the second information includes one or more of the following information: the quality of service (QoS) required by the second terminal for sidelink communication; the amount of data that the second terminal needs to send through the sidelink; A connection establishment request for establishing a sidelink connection with the first terminal.

In step S560, the first terminal sends part or all of the second information to the first network device.

The embodiment of the present application does not limit the transmission mode of the above-mentioned second information. The above-mentioned second information may be transmitted through the PC5 interface, and of course the above-mentioned second information may also be transmitted through other interfaces.

In some implementation manners, the foregoing second information may be sent to the first terminal in a unicast manner. In some other implementation manners, the above second information may also be sent to the first terminal in a multicast manner. Certainly, the above second information may also be sent to the first terminal in a broadcast manner.

The above second information may be carried in one or more of the following signalings: PC5-S, PC5-RRC, MAC CE, or physical layer signaling. Certainly, the foregoing second information may also be transmitted through dedicated signaling, which is not limited in this embodiment of the present application.

In this embodiment of the application, before the first terminal is determined to be the scheduling terminal of the second terminal, the first terminal and the second terminal may first exchange information to inform the other party that the first terminal has the scheduling capability and the second terminal has the ability to be scheduled. need. That is, the above-mentioned second information may also indicate that the second terminal has a requirement for scheduling sidelink resources by other terminals. Correspondingly, the above method further includes step S570.

In step S570, the first terminal sends third information to the second terminal. Wherein, the third information indicates that the first terminal has the capability of scheduling sidelink resources for other terminals.

If the above-mentioned first sidelink resource is a sidelink resource used for communication between the first terminal and the second terminal, the above third information may also include a request for establishing a sidelink with the second terminal. A connection establishment request for a road connection. Correspondingly, the foregoing second information may further include a connection establishment request for requesting establishment of a sidelink connection with the first terminal.

The embodiment of the present application does not limit the transmission mode of the above-mentioned third information, the above-mentioned third information may be transmitted through the PC5 interface, of course, the above-mentioned third information may also be transmitted through other interfaces.

In some implementation manners, the foregoing third information may be sent to the second terminal in a unicast manner. In some other implementation manners, the above third information may also be sent to the second terminal in a multicast manner. Of course, the above third information may also be sent to the second terminal in a broadcast manner.

The third information above may be carried in one or more of the following signalings: PC5-S, PC5-RRC, MAC CE, or physical layer signaling. Of course, the above third information may also be transmitted through dedicated signaling, which is not limited in this embodiment of the present application.

Optionally, after the first terminal configures the first sidelink resource for the second terminal, the second terminal may also send the first sidelink resource to the second network device. That is, continue referring to FIG. 5 , the above method further includes step S580, the second terminal sends configuration information of the first side link resource and/or configuration information of the first side link resource pool to the second network device.

Based on the above introduction, after the first terminal configures the first side link resource to the second terminal, the second terminal can execute Operate accordingly. For example, when the configuration information of the sidelink resource pool to which the first sidelink resource belongs indicates that resource reassessment is supported, the second terminal needs to perform resource reassessment before using the first sidelink resource for communication. For another example, when the configuration information of the sidelink resource pool to which the first sidelink resource belongs indicates that resource preemption is supported, the second terminal may send an SCI based on a preset rule to indicate to reserve the first sidelink resource.

Of course, in the embodiment of the present application, the above SCI for instructing to reserve the first side link resource may also be sent by the first terminal, which is not limited in the embodiment of the present application.

In addition, in the embodiment of the present application, the resource re-evaluation and/or pre-preemption of resources described above may also be performed by the first terminal.

The flow of the communication method in the embodiment of the present application is described above with reference to FIG. 5 . It should be noted that, in the communication method based on FIG. 5 , before the first network device sends the first resource configuration information to the first terminal (see step S510), the first terminal feeds back the second terminal request to the first network device The resource configuration parameters of the sidelink resources (see step S540), so that the first network device can directly configure appropriate sidelink resources for the second terminal through step S510. Of course, in some cases, the first network device may first configure sidelink resources or sidelink resource pools for the second terminal, and then the first network device receives the resource configuration parameters of the second terminal, At this time, the first network device may reconfigure the first side link resource or the first side link resource pool for the second terminal based on the resource configuration parameters of the second terminal.

The following describes a flowchart of a communication method according to another embodiment of the present application with reference to FIG. 6 . It should be noted that the sequence of occurrence of some steps in the process shown in Figure 6 is different from that shown in Figure 5, but the content of the information involved in the steps and the way of sending information are mostly the same as the introduction in Figure 5, for the sake of brevity, The information in FIG. 6 with the same function as that in FIG. 5 will be used with the same name below, and the function, content and sending method of the information will not be described in detail in FIG. 6 . The method shown in FIG. 6 includes step S610 to step S622.

In step S610, the second terminal sends second information to the first terminal.

In step S611, the first terminal sends part or all of the second information to the first network device.

In step S612, the first terminal sends third information to the second terminal.

In step S613, the first terminal sends first information to the first network device.

In step S614, the first network device sends first configuration information to the first terminal.

In step S615, the second terminal sends fourth information to the second network device.

In step S616, the second network device sends second configuration information to the second terminal.

In step S617, the first network device sends second resource configuration information to the first terminal, where the second resource configuration information is used to configure sidelink resources for the second terminal.

In step S618, the second terminal sends resource configuration parameters to the first terminal.

In step S619, the first terminal sends the resource configuration parameter to the first network device.

In step S620, the first network device resends the first resource configuration information to the first terminal based on the resource configuration parameters.

Since the above first resource configuration information is reconfigured for the second terminal by the first network device based on the resource configuration parameters of the second terminal, the above first resource configuration information may also be called "resource reconfiguration information".

In step S621, the first terminal sends scheduling information to the second terminal.

In step S622, the second terminal sends configuration information of the first side link resource and/or configuration information of the first side link resource pool to the second network device.

Two possible implementation manners of the communication method in the embodiment of the present application are introduced above based on FIG. 5 and FIG. 6 . It should be understood that the execution sequence of the steps in the communication method in the embodiment of the present application is not limited to the above description, and the execution sequence of the steps is not specifically limited in the embodiment of the present application. The flow shown in FIG. 5 is taken as an example below. The time sequence between the steps in FIG. 6 can also be adjusted with reference to the description below. For the sake of brevity, the following will not list them one by one.

In some implementations, referring to FIG. 7, the execution time of the above steps S310-S320 may be before the execution time of S550, S560, S570, and the execution time of S550, S560, S570 may be before the execution time of steps S330-S340. In other implementation manners, the execution time of the above steps S310-S320 may be the same as the execution time of steps S330-S340. In other implementation manners, the execution time of the above steps S550, S560, and S570 may be after the execution time of steps S310-S320 and/or the execution time of steps S330-S340.

As mentioned above, the first sidelink resource pool may be a resource pool that supports multiple resource configuration methods. If a sidelink resource is allocated to different terminals through multiple resource configuration methods, it will cause Resource conflict. Therefore, the present application also provides a communication method to avoid the above-mentioned problem of resource conflict by setting priorities for different resource allocation methods. That is, the first terminal acquires configuration information of the first sidelink resource pool. Wherein, the configuration information is used to indicate that the first side link resource pool supports multiple resource configuration modes, and different resource allocation modes in the multiple resource configuration modes have different priorities.

The priorities corresponding to the above-mentioned different resource allocation methods can be understood as the priorities of the allocated sidelink resources used by terminals in different resource allocation methods, or in other words, the terminals in different resource allocation methods use the allocated sidelink resources communication priority. For example, the terminal in mode 2 uses the priority of sidelink resources allocated based on mode 2. For another example, the communication priority of the terminal in mode 2d on the sidelink resources allocated based on mode 2d.

The content and transmission method of the configuration information of the first sidelink resource pool may be the same as the first resource configuration information above. For details, please refer to the introduction above. For brevity, details are not repeated here.

In some implementations, for example, in mode 2d, the first terminal schedules the second terminal to communicate on the first sidelink resource in the first sidelink resource pool.

It should be understood that the solutions of the embodiments of the present application can be used in combination with the communication methods shown in Figures 3 to 7 above, and the above "first side link resource" can be understood as the communication method shown in Figures 3 to 7 above. The first side link resource configured by the process, correspondingly, the above-mentioned first side link resource pool is the first side link resource pool above.

Of course, the solution in the embodiment of the present application can also be used alone. In this case, the "first side link resource" can be understood as the side link resource configured in the resource configuration mode 2 in mode 2d. At this time, the embodiment of the present application does not limit the specific process of configuring sidelink resources for the second terminal by the first network device. For example, the first network device may randomly configure sidelink resources for the second terminal. Correspondingly, the embodiment of the present application does not limit the configuration process of the first sidelink resource pool. For example, the first sidelink resource pool may be preset based on a protocol.

Assume that the resource configuration modes supported by the sidelink resource pool to which the first side link resource belongs include resource configuration mode 1 in mode 2d and resource configuration mode 2 in mode 2d.

At this time, due to the second resource configuration method in mode 2d, the sidelink resources of the scheduled terminal are configured by the network device, which is not easy to change, or the cost of the change is relatively high (for example, the network device needs to re-coordinate resources configuration), therefore, the priority of resource configuration mode 2 in mode 2d can be configured higher than the priority of resource configuration mode 1 in mode 2d, or in other words, the scheduled terminal configured through resource configuration mode 2 in mode 2d is in The priority of communication on the first side link resource is higher than the priority of communication on the first side link resource of the scheduled terminal configured in resource configuration mode 1 in mode 2d.

Referring to FIG. 8 , in step S810 , the first network device configures the first sidelink resource for the second terminal through resource configuration mode 2 in mode 2d. In step S820, the third terminal configures the first side link resource to the fourth terminal through resource detection. In this case, the priority of the communication of the second terminal on the first side link resource is higher than that of the communication of the fourth terminal on the first side link resource.

Optionally, in order to indicate to the third terminal and/or the fourth terminal that the above-mentioned first side link resource is reserved, the first terminal and/or the second terminal may be configured to send an SCI, and the SCI is used to indicate that the first side link resource is reserved. Link resources are reserved by the first terminal and configured for the second terminal.

Of course, in this embodiment of the application, if the third terminal reselects other sidelink resources for the fourth terminal based on the resource configuration mode 1 in mode 2d, the third terminal and/or the fourth terminal can also send the SCI Indicates that the other sidelink resources are reserved by the third terminal and configured for the fourth terminal.

It is assumed that the resource configuration modes supported by the sidelink resource pool to which the first side link resource belongs include resource configuration mode 2 and mode 2a in the foregoing mode 2d.

At this time, due to the second resource configuration method in mode 2d, the sidelink resources of the scheduled terminal are configured by the network device, which is not easy to change, or the cost of the change is relatively high (for example, the network device needs to re-coordinate resources Configuration), therefore, the priority of resource configuration mode 2 in mode 2d can be configured higher than that of mode 2a, or in other words, the scheduled terminal configured in mode 2d in resource configuration mode 2 is on the first sidelink The priority of communication on the resource is higher than the priority of communication on the first side link resource of the scheduled terminal configured in mode 2a.

Referring to FIG. 9 , in step S910 , the first network device configures the first sidelink resource for the second terminal through resource configuration mode 2 in mode 2d. In step S920, the fifth terminal configures the first side link resource to itself by means of resource detection. In this case, the priority of the communication of the second terminal on the first side link resource is higher than the priority of communication of the fifth terminal on the first side link resource.

Optionally, in order to indicate to the fifth terminal that the first side link resource is reserved, the first terminal and/or the second terminal may be configured to send an SCI, where the SCI is used to indicate that the first side link resource is reserved by the second terminal. A terminal is reserved and configured for a second terminal.

It should be noted that, in the embodiment of this application, since the priority of resource configuration mode 2 in mode 2d is higher than that of mode 2a, the first terminal can directly schedule the second terminal on the first side without performing resource detection. communicate over uplink resources.

It is assumed that the resource configuration modes supported by the sidelink resource pool to which the first sidelink resource belongs include resource configuration mode 2 and mode 2b in the foregoing mode 2d.

At this time, due to the second resource configuration method in mode 2d, the sidelink resources of the scheduled terminal are configured by the network device, which is not easy to change, or the cost of the change is relatively high (for example, the network device needs to re-coordinate resources configuration), therefore, the priority of resource configuration mode 2 in mode 2d can be configured higher than that of mode 2b, or in other words, the scheduled terminal configured in mode 2d in resource configuration mode 2 is on the first sidelink The priority of communication on the resource is higher than the priority of communication on the first side link resource of the scheduled terminal configured in mode 2b.

Referring to FIG. 10 , in step S1010 , the first network device configures the first sidelink resource for the second terminal through resource configuration mode 2 in mode 2d. In step S1020, in mode 2b, the sixth terminal assists the seventh terminal to select the first side link resource. In this case, the communication priority of the second terminal on the first side link resource is higher than that of the seventh terminal communication on the first side link resource.

Optionally, in order to indicate to the seventh terminal and/or the sixth terminal that the above-mentioned first side link resource is reserved, the first terminal and/or the second terminal may be configured to send an SCI, where the SCI is used to indicate that the first side link resource is reserved. The uplink resources are reserved by the first terminal and configured for the second terminal.

It should be noted that, in the embodiment of the present application, since the priority of resource configuration mode 2 in mode 2d is higher than that of mode 2b, the first terminal can directly schedule the second terminal on the first side without performing resource detection. communicate over uplink resources.

It is assumed that the resource configuration modes supported by the sidelink resource pool to which the second sidelink resource belongs include resource configuration mode 1 and mode 1 in the above-mentioned mode 2d.

At this time, since in mode 1, the side link resources of the terminal are directly configured by the network device, it is not easy to change, or the cost of the change is high (for example, the network device needs to re-coordinate the resource configuration), therefore, you can configure The priority of mode 1 is higher than the priority of resource configuration mode 1 in mode 2d, or in other words, the priority of communication on the second side link resource for the scheduled terminal configured by resource configuration mode 1 in mode 2d is low Priority for communicating on the second sidelink resource for terminals configured in mode 1.

Referring to FIG. 11 , in step S1110, the first terminal configures the second sidelink resource for the second terminal through resource detection. In step S1120, the network device accessed by the eighth terminal in mode 1 directly configures the second sidelink resource to the eighth terminal. In this case, the priority of the communication of the second terminal on the second side link resource is lower than the priority of communication of the eighth terminal on the second side link resource.

Optionally, in order to indicate to the eighth terminal that the first side link resource is reserved, the first terminal and/or the second terminal may be configured to send an SCI, where the SCI is used to indicate that the first side link resource is reserved by the second terminal. A terminal is reserved and configured for a second terminal.

It should be noted that, in this embodiment of the application, since the priority of mode 1 is higher than that of resource configuration mode 1 in mode 2d, in order to exclude the sidelink resources configured based on the above mode 1, the first The terminal needs to perform resource detection to select sidelink resources for the second terminal.

It is assumed that the resource configuration modes supported by the sidelink resource pool to which the third sidelink resource belongs include resource configuration mode 1 and mode 2a in the foregoing mode 2d.

At this time, since the resource configuration method 1 in mode 2d involves both the scheduled terminal and the scheduling terminal, while mode 2a only involves one terminal, in order to simplify the complexity of reconfiguring sidelink resources, you can configure mode The priority of resource configuration mode 1 in 2d is higher than that of mode 2a, or in other words, the priority of communication on the third sidelink resource of the scheduled terminal configured by resource configuration mode 1 in mode 2d is higher than that of The communication priority of the terminal configured in mode 2a on the third side link resource.

Referring to Fig. 12, in step S1210, the first terminal configures the third side link resource for the second terminal through resource detection. In step S1220, in mode 2a, the ninth terminal configures the third sidelink resource for itself through resource detection. In this case, the priority of the communication of the second terminal on the third side link resource is higher than the priority of communication of the ninth terminal on the second side link resource.

Optionally, in order to indicate to the ninth terminal that the third side link resource is reserved, the first terminal and/or the second terminal may be configured to send an SCI, where the SCI is used to indicate that the third side link resource is reserved. A terminal is reserved and configured for a second terminal.

It should be noted that, in the embodiment of the present application, since the priority of mode 2a is lower than the priority of resource configuration mode 1 in mode 2d, the first terminal can no longer perform resource detection and directly select Sidelink resources.

It is assumed that the resource configuration modes supported by the sidelink resource pool to which the fourth sidelink resource belongs include mode 1 and resource configuration mode 2.

At this time, since the sidelink resources are directly configured by the network device in the above two modes, the resource conflict problem described above does not exist.

Referring to FIG. 13 , in step S1310 , the network device accessed by the tenth terminal in mode 1 directly configures the fourth sidelink resource to the tenth terminal. In step S1320, the first network device configures the fifth sidelink resource for the second terminal through resource configuration mode 2 in mode 2d. In this case, there may be no priority between mode 1 and resource allocation mode 2.

In addition, in the foregoing case, the first terminal and/or the second terminal may not send the SCI to indicate the reserved fifth sidelink resource.

If in some cases, resources configured by the above two resource configuration methods conflict, the priority of configuration mode 1 may be higher than that of resource configuration method 2 in mode 2d.

In some implementations, the priority of mode 2b can also be set higher than that of mode 2a. For example, after the same sidelink resource is configured for different terminals based on mode 2b and mode 2a, the terminal in mode 2b The priority of communication on the side link resource is higher than the priority of communication of the terminal on the side link resource in mode 2a. Mode 2a and mode 2b have been introduced above, and for the sake of brevity, details are not repeated here.

The above describes the priority configuration mode between the two resource configuration modes in the embodiment of the present application in conjunction with FIG. 8 to FIG. 13 if the sidelink resource pool supports two resource configuration modes. The priorities corresponding to the above different resource allocation modes may be extended to three or more.

It should be noted that if the resource configuration methods supported by the sidelink resource pool are extended to three or more, the priorities corresponding to the resource configuration methods introduced above in conjunction with Figures 8 to 13 can be used in combination. The embodiment of the application does not limit the combinations of priorities corresponding to the above-mentioned different resource allocation modes. Of course, if the resource configuration methods supported by the sidelink resource pool are extended to three or more, you can also only use the priority configuration methods corresponding to some of the two resource configuration methods introduced above. The resource allocation method does not need to set priority.

In some implementations, if the above-mentioned side link resource pool supports all resource configuration methods mentioned above, the priorities between different resource configuration methods can be configured as follows: the priority of mode 1 is higher than that of resources in mode 2d The priority of configuration mode 2, the priority of resource configuration mode 2 in mode 2d is higher than the priority of resource configuration mode 1 in mode 2d, the priority of resource configuration mode 1 in mode 2d is higher than the priority of mode 2b , the priority of mode 2b can be higher than that of mode 2a.

In other implementations, the priorities between different resource configuration methods can be configured as follows: the priority of mode 1 is higher than the priority of resource configuration method 2 in mode 2d, and the priority of resource configuration method 2 in mode 2d higher than the priority of resource allocation mode 1 in mode 2d, the priority of resource allocation mode 1 in mode 2d is higher than the priority of mode 2b, and the priority of mode 2a may be higher than that of mode 2b.

For ease of understanding, the following uses the sidelink resource pool to support three resource configuration modes as an example.

Assume that the resource configuration modes supported by the sidelink resource pool to which the first sidelink resource belongs include resource configuration mode 1 in mode 2d, resource configuration mode 2 in mode 2d, and mode 1.

At this time, the sidelink resources in mode 1 and resource configuration mode 2 in mode 2d are all configured by network equipment, therefore, no resource conflict will occur between these two resource configuration modes. In addition, as mentioned above, the priority of resource configuration method 2 in mode 2d is higher than the priority of resource configuration method 1 in mode 2d, or in other words, the scheduled terminal configured in mode 2d in resource configuration method 2 is the first The priority of the communication on the first side link resource is higher than the priority of the communication on the first side link resource of the scheduled terminal configured in the first resource configuration mode in mode 2d. Moreover, the priority of mode 1 is also higher than the priority of resource configuration mode 1 in mode 2d, or in other words, the priority of communication on the first side link resource of the scheduled terminal configured in mode 1 is higher than that of mode 1 Resource configuration mode 1 in 2d configures the communication priority of the scheduled terminal on the first side link resource.

Referring to FIG. 14 , in step S1410 , the first network device configures the first sidelink resource for the second terminal through resource configuration mode 2 in mode 2d. In step S1420, the network device accessed by the tenth terminal in mode 1 directly configures the fourth sidelink resource to the tenth terminal. At this time, in step S1430, the third terminal needs to exclude the first side link resource and the fourth side link resource through resource detection, and then schedule side link resources for the fourth terminal in the remaining side link resources. link resources.

Optionally, in order to indicate to the third terminal and/or the fourth terminal that the above-mentioned first side link resource and the fourth side link resource are reserved, the first terminal and/or the second terminal may be configured to send the SCI, The SCI is used to indicate that the first side link resource is reserved by the first terminal and configured for the second terminal. The tenth terminal may also be configured to send an SCI, where the SCI is used to indicate that the fourth sidelink resource is configured by the network device to the tenth terminal.

Of course, in this embodiment of the application, if the third terminal selects other sidelink resources for the fourth terminal based on resource configuration method 2 in mode 2d, the third terminal and/or the fourth terminal can also send an SCI indication The foregoing other sidelink resources are reserved by the third terminal and configured for the fourth terminal.

It is assumed that the resource configuration modes supported by the sidelink resource pool to which the first sidelink resource belongs include resource configuration mode 1 in mode 2d, resource configuration mode 2 in mode 2d, and mode 2a.

As mentioned above, the priority of resource configuration method 2 in mode 2d is higher than that of resource configuration method 1 in mode 2d, and the priority of resource configuration method 1 in mode 2d is higher than that of mode 2a.

Referring to FIG. 15 , in step S1510 , the first network device configures the first sidelink resource for the second terminal through resource configuration mode 2 in mode 2d. In step S1520, the third terminal autonomously configures the first sidelink resource for the fourth terminal through resource detection. In step S1530, the fifth terminal configures the first sidelink to itself by means of resource detection. Based on the above priority configuration, it can be seen that the third terminal needs to reselect sidelink resources for the fourth terminal, so as to exclude the sidelink resources configured by the first network device for the second terminal. The fifth terminal needs to exclude the sidelink resource selected by the third terminal for the fourth terminal and the sidelink resource configured by the first network device for the second terminal.

Optionally, in order to indicate the reserved sidelink resource to the fifth terminal, the first terminal and/or the second terminal may be configured to send an SCI, and the SCI is used to indicate that the first sidelink resource is reserved by the first terminal. Reserved and configured for the second terminal. The third terminal and/or the fourth terminal may also be configured to send the SCI, where the SCI is used to indicate the sidelink resource reserved by the third terminal for the fourth terminal.

Of course, in this embodiment of the present application, if the fifth terminal selects other side link resources based on the resource configuration mode 1 in mode 2d, the fifth terminal may also send an SCI to indicate that the above other side link resources are selected by the fifth terminal. Terminal reserved.

As mentioned above, the terminal needs to indicate the reserved side link resources by sending SCI, and the resource configuration method in which the side link resources are allocated to other terminals, so that other terminals exclude the resources indicated by the SCI resources, or preempt the sidelink resources indicated by the SCI. Therefore, it is necessary to add a number of bits to the existing SCI format to indicate which resource configuration method the sidelink resource is reserved for. In some implementations, 2 bits may be added to the existing format of the SCI to indicate the above resource configuration modes: two resource configuration modes in mode 1, mode 2a, mode 2b and mode 2d.

In other implementations, if the sidelink resource pool only supports two types of resource configurations, in order to reduce the number of newly added bits in the SCI, only terminals in the resource configuration mode with higher priority can be configured to send the SCI. In this way, After other terminals receive the SCI, they can infer that the sidelink resources indicated by the SCI are reserved through resource configuration with higher priority. For example, the resource configuration methods supported by the sidelink resource pool include mode 1 and resource configuration mode 2 in mode 2d. At this time, only terminal 1 in mode 1 can be configured to send SCI, so that when the scheduling terminal in resource configuration mode 2 When terminal 2 receives the SCI sent by terminal 1, it can confirm that the priority of the reserved side link resources indicated by the SCI is higher, or that the priority of the resource configuration method corresponding to the reserved side link resources indicated by the SCI is higher. high. At this time, the SCI does not need to add a new bit to indicate the resource configuration mode corresponding to the sidelink resource indicated by the SCI.

With the development of communication technology, more and more types of terminals are connected to the communication system. Currently, in the process of establishing a sidelink connection between terminals, it is necessary to configure the terminal to send signaling in the process of establishing the sidelink connection (for example, sidelink discovery message, PC5- S message and PC5-RRC message), etc. However, based on the signaling sending mechanism during the establishment of the side link connection, the number of terminals that can access the side link during the establishment of a side link connection is very limited.

The above-mentioned signaling sending mechanism during the establishment of the sidelink connection does not take into account factors such as different wake-up periods of different terminals, different locations of different terminals, and different frequency bands accessed by different terminals. Therefore, in order to avoid the above-mentioned problems, the present application also provides a communication method by sending the above-mentioned sidelink connection establishment process on different time-domain resources, different frequency-domain resources and/or on beams with different beam directions In order to increase the number of terminals that can access the sidelink during a sidelink connection establishment process. The method in another embodiment of the present application is introduced below with reference to FIG. 16 . The method shown in FIG. 16 includes step S1610 and step S1620.

In step S1610, the first terminal sends a plurality of sixth messages.

The sixth information above is one or more of a sidelink discovery message, a PC5-S message, and a PC5-RRC message.

Wherein, time domain resources occupied by multiple pieces of sixth information are different; frequency domain resources occupied by multiple pieces of sixth information are different; and/or beam directions of multiple beams for transmitting multiple pieces of sixth information are different.

In some implementation manners, the first terminal may send multiple pieces of sixth information in a unicast, multicast, or broadcast manner.

In step S1620, the second terminal sends reply information to the sixth information to the first terminal.

Optionally, the above reply information is carried on the first resource, and the above method further includes: the first terminal performs sidelink communication with the second terminal on the second resource corresponding to the first resource.

The foregoing first resource may be a time domain resource, a frequency domain resource, a beam resource, and the like.

The method embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 16 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 17 to FIG. 22 . It should be understood that the descriptions of the method embodiments correspond to the descriptions of the device embodiments, therefore, for parts not described in detail, reference may be made to the foregoing method embodiments.

Fig. 17 is a schematic diagram of a first terminal in an embodiment of the present application. The first terminal 1700 shown in FIG. 17 includes a sending unit 1710 and a receiving unit 1720 .

A sending unit 1710, configured to send first information to the first network device, where the first information indicates that the first terminal has the ability to schedule sidelink resources for the second terminal;

The receiving unit 1720 is configured to receive first configuration information sent by the first network device, where the first configuration information configures the first terminal as a scheduling terminal.

Optionally, the receiving unit 1720 is further configured to receive first resource configuration information sent by the first network device, where the first resource configuration information is used to configure the first sidelink of the second terminal resource;

The sending unit is further configured to send scheduling information to the second terminal, where the scheduling information is used to schedule the second terminal to communicate on the first sidelink resource.

Optionally, the first resource configuration information is used to configure a first side link resource pool, and the first terminal further includes a processing unit configured to perform resource detection in the first side link resource pool , selecting the first sidelink resource for the second terminal.

Optionally, the first resource configuration information includes one or more of the following information: resource configuration modes supported by the first side link resource pool configured in the first resource configuration information; whether the first terminal needs Perform resource detection in the first side link resource pool; whether the first side link resource pool supports pre-preempting resources; whether the first side link resource pool supports resource re-evaluation; and Whether the first sidelink resource pool is a shared resource pool.

Optionally, the sidelink resources are configured based on resource configuration parameters, and the receiving unit 1720 may be configured to receive resource configuration parameters sent by the second terminal, where the resource configuration parameters are used to indicate that the second Configuration parameters of sidelink resources requested by the terminal; the sending unit 1710 is further configured to send the resource configuration parameters to the first network device.

Optionally, the resource configuration parameter is indicated by one or more of the following information: side link resources configured by the second network device for the second terminal; The second side link resource pool configured by the terminal; configuration information of the second side link resource pool; side link resources preconfigured for the second terminal; a third sidelink resource pool; and configuration information of the third sidelink resource pool.

Optionally, the receiving unit 1720 is further configured to receive second information sent by the second terminal; the sending unit 1710 is further configured to send at least part of the second information to the first network device ; Wherein, the second information includes one or more of the following information: the second terminal has a demand for sidelink resource scheduling by other terminals; the second terminal needs to perform sidelink communication QoS of service quality; the amount of data that the second terminal needs to send through the sidelink; and a connection establishment request for requesting to establish a sidelink connection with the first terminal.

Optionally, the sending unit 1710 is further configured to send third information to the second terminal, where the third information includes that the first terminal has the ability to schedule sidelink resources for other terminals, and/or The third information includes a connection establishment request for requesting establishment of a sidelink connection with the second terminal.

Optionally, if the first side link resource is configured to the fourth terminal by the third terminal through resource detection, the communication priority of the second terminal on the first side link resource A priority higher than that of the fourth terminal communicating on the first sidelink resource.

Optionally, the sending unit 1710 is configured to send first side link control information SCI, where the first SCI is used to indicate that the first side link resource is reserved and configured by the first terminal to the second terminal.

Optionally, if the first side link resource is autonomously selected by the fifth terminal through resource detection, the priority of the second terminal to communicate on the first side link resource is higher than that of the first side link resource. The priority of the terminal to communicate on the first side link resource.

Optionally, if the first side link resource is the side link resource selected by the sixth terminal assisting the seventh terminal, the priority of the second terminal to communicate on the first side link resource higher than the priority of the seventh terminal for communication on the first sidelink resource.

Optionally, if the first terminal configures the second side link resource for the second terminal through resource detection, and the second side link resource is directly configured to the second terminal by the network device accessed by the eighth terminal For the eighth terminal, the priority of the eighth terminal to communicate on the second side link resource is higher than the priority of the second terminal to communicate on the second side link resource.

Optionally, the sending unit 1710 is further configured to send second side link control information SCI, where the second SCI is used to indicate that the second side link resources are reserved and configured by the first terminal to the second terminal.

Optionally, if the first terminal configures a third side link resource for the second terminal through resource detection, and the third side link resource is autonomously selected by the ninth terminal through resource detection, then the The communication priority of the ninth terminal on the third side link resource is lower than the priority of the second terminal communication on the third side link resource.

Optionally, the sending unit 1710 is further configured to send third side link control information SCI, where the third SCI is used to indicate that the third side link resource is reserved and configured by the first terminal to the second terminal.

FIG. 18 is a schematic diagram of a second terminal according to an embodiment of the present application. The second terminal 1800 shown in FIG. 18 includes a sending unit 1810 and a receiving unit 1820 .

A sending unit 1810, configured to send fourth information to a second network device, where the fourth information indicates that the second terminal has a requirement for sidelink resource scheduling by the first terminal;

The receiving unit 1820 is configured to receive second configuration information sent by the second network device, where the second configuration information configures the second terminal as a scheduled terminal.

Optionally, the receiving unit 1820 is further configured to receive scheduling information sent by the first terminal, where the scheduling information is used to schedule the second terminal to communicate on the first sidelink resource.

Optionally, the sending unit 1810 is further configured to send resource configuration parameters to the first terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal.

Optionally, the resource configuration parameter is indicated by one or more of the following information: side link resources configured by the second network device for the second terminal; The second side link resource pool configured by the second terminal; configuration information of the second side link resource pool; side link resources pre-configured for the second terminal; pre-configured for the second terminal A configured third sidelink resource pool; and configuration information of the third sidelink resource pool.

Optionally, the sending unit 1810 is further configured to send second information to the first terminal, where the second information includes one or more of the following information: the second terminal has The requirement for scheduling sidelink resources; the quality of service (QoS) required by the second terminal for sidelink communication; the amount of data that the second terminal needs to send through the sidelink; A connection establishment request for establishing a sidelink connection by the first terminal.

Optionally, the receiving unit 1820 is further configured to receive third information sent by the first terminal, where the third information includes that the first terminal has a capability of scheduling sidelink resources for other terminals, and/or Or the third information includes a connection establishment request for requesting establishment of a sidelink connection with the second terminal.

Optionally, the sending unit 1810 is further configured to send fifth information to the second network device, where the fifth information is used to indicate that the first terminal is the first terminal scheduled by the second terminal. Sidelink resources.

Optionally, the sending unit 1810 is further configured to send fourth side link control information SCI, where the fourth SCI is used to indicate that the first side link resource is reserved and configured by the first terminal. to the second terminal.

Fig. 19 is a schematic diagram of a first network device according to an embodiment of the present application. The first network device 1900 shown in FIG. 19 includes a receiving unit 1910 and a sending unit 1920 .

The receiving unit 1910 is configured to receive first information sent by the first terminal, where the first information indicates that the first terminal has the ability to schedule sidelink resources for the second terminal;

The sending unit 1920 is configured to send first configuration information to the sending first terminal, where the first configuration information configures the first terminal as a scheduling terminal.

Optionally, the sending unit 1920 is further configured to send first resource configuration information to the first terminal, where the first resource configuration information is used to configure the first sidelink resource of the second terminal.

Optionally, the first network device further includes a processing unit, and the receiving unit is further configured to receive a resource configuration parameter sent by the first terminal, where the resource configuration parameter is used to indicate the resource configuration parameter requested by the second terminal. Configuration parameters of side link resources; the processing unit is configured to configure the first side link resources based on the resource configuration parameters.

Optionally, the receiving unit 1910 is configured to receive at least part of the second information sent by the first terminal; wherein the second information includes one or more of the following information: the second The terminal has a demand for sidelink resource scheduling by other terminals; the quality of service (QoS) required by the second terminal for sidelink communication; the amount of data that the second terminal needs to send through the sidelink; and A connection establishment request for requesting to establish a sidelink connection with the first terminal.

FIG. 20 is a schematic diagram of a second network device according to an embodiment of the present application. The second network device 2000 shown in FIG. 20 includes a receiving unit 2010 and a sending unit 2020 .

The receiving unit 2010 may be configured to receive fourth information sent by the second terminal, where the fourth information indicates that the second terminal has a requirement for sidelink resource scheduling by the first terminal;

The sending unit 2010 may be configured to send second configuration information to the second terminal, where the second configuration information configures the second terminal as a scheduled terminal.

Optionally, the sending unit 2010 may be configured to send resource configuration parameters to the second terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal.

Optionally, the receiving unit 2010 is configured to receive fifth information sent by the second terminal, where the fifth information is used to indicate the first sidelink resource.

Fig. 21 is a schematic diagram of a first terminal according to another embodiment of the present application. The first terminal 2100 shown in FIG. 21 includes a sending unit 2110 and a receiving unit 2120 .

A sending unit 2110, configured to send a plurality of sixth information, where the sixth information is one or more of a sidelink discovery message, a PC5-S message, and a PC5-RRC message;

a receiving unit 2120, configured to receive reply information for the sixth information sent by the second terminal;

Wherein, the time domain resources occupied by the multiple pieces of sixth information are different; the frequency domain resources occupied by the multiple pieces of sixth information are different; and/or the beam directions of multiple beams transmitting the multiple pieces of sixth information are different.

Optionally, the reply information is carried on a first resource, and the first terminal further includes: a communication unit configured to perform a sidelink with the second terminal on a second resource corresponding to the first resource communication.

Optionally, the sending unit 2110 is further configured to send the multiple pieces of sixth information in a unicast, multicast or broadcast manner.

Fig. 22 is a schematic diagram of a first terminal according to another embodiment of the present application. The first terminal 2200 shown in FIG. 22 includes an acquiring unit 2210 . In some implementation manners, the first terminal 2200 further includes a scheduling unit 2220 .

The obtaining unit 2210 is configured to obtain configuration information of the first side link resource pool, where the configuration information is used to indicate that the first side link resource pool supports multiple resource configuration modes, and the multiple resource configuration modes Different resource allocation methods have different priorities.

Optionally, the first terminal further includes a scheduling unit 2220, configured to schedule the second terminal to communicate on the first side link resource in the first side link resource pool.

Optionally, if the first side link resource is configured by the network device for the second terminal through the first terminal, and the first side link resource is configured by the third terminal through resource detection For the fourth terminal, the priority of the communication of the second terminal on the first side link resource is higher than the priority of the communication of the fourth terminal on the first side link resource .

Optionally, if the first terminal configures the first side link resource for the second terminal through resource detection, and the first side link resource is selected by the fifth terminal assisting the sixth terminal side link resources, the priority of the second terminal for communication on the first side link resource is higher than the priority of the sixth terminal for communication on the first side link resource.

Optionally, if the first side link resource is configured by the network device for the second terminal through the first terminal, and the first side link resource is accessed by the eighth terminal in the network If the device is directly configured to the eighth terminal, the priority of the eighth terminal to communicate on the first side link resource is higher than that of the second terminal to communicate on the first side link resource priority.

Optionally, the first terminal further includes a first sending unit, configured to send first side link control information SCI, where the first SCI is used to indicate that the first side link resource is controlled by the first side link resource. A terminal is reserved and configured for the second terminal.

Optionally, if the second side link resource in the first side link resource pool is autonomously selected by the first terminal through resource detection, and the second side link resource is the sixth terminal assisting the seventh terminal in selecting sidelink resources, the priority of the first terminal to communicate on the second sidelink resource is lower than that of the seventh terminal on the first sidelink resource communication priority.

Optionally, the first terminal further includes a second sending unit, configured to send second side link control information SCI, where the second SCI is used to indicate that the second side link resource is controlled by the second side link resource. A terminal is reserved and configured for the second terminal.

Fig. 23 is a schematic structural diagram of a communication device according to an embodiment of the present application. The dashed line in Figure 23 indicates that the unit or module is optional. The apparatus 2300 may be used to implement the methods described in the foregoing method embodiments. Apparatus 2300 may be a chip, a terminal device or a network device.

Apparatus 2300 may include one or more processors 2310 . The processor 2310 can support the device 2300 to implement the methods described in the foregoing method embodiments. The processor 2310 may be a general purpose processor or a special purpose processor. For example, the processor may be a central processing unit (central processing unit, CPU). Alternatively, the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf programmable gate arrays (field programmable gate arrays, FPGAs) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

Apparatus 2300 may also include one or more memories 2320 . A program is stored in the memory 2320, and the program can be executed by the processor 2310, so that the processor 2310 executes the methods described in the foregoing method embodiments. The memory 2320 may be independent from the processor 2310 or may be integrated in the processor 2310 .

The apparatus 2300 may also include a transceiver 2330 . The processor 2310 can communicate with other devices or chips through the transceiver 2330 . For example, the processor 2310 may send and receive data with other devices or chips through the transceiver 2330 .

The embodiment of the present application also provides a computer-readable storage medium for storing programs. The computer-readable storage medium can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.

The embodiment of the present application also provides a computer program product. The computer program product includes programs. The computer program product can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.

The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.

It should be understood that in this embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.

It should also be understood that in this embodiment of the present application, "the first side link resource" and "the second side link resource" are only for the convenience of description in different embodiments, and they may actually be different The sidelink resource may also be the same sidelink resource, which is not limited in this embodiment of the present application.

It should also be understood that the term "and/or" in the embodiments of the present application is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, and at the same time There are three cases of A and B, and B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

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.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be read by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (digital video disc, DVD)) or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )wait.

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 determined by the protection scope of the claims.

Claims

A communication method, characterized in that, comprising:

The first terminal sends first information to the first network device, where the first information indicates that the first terminal has the ability to schedule sidelink resources for the second terminal;

The first terminal receives first configuration information sent by the first network device, where the first configuration information configures the first terminal as a scheduling terminal.
The method of claim 1, further comprising:

The first terminal receives first resource configuration information sent by the first network device, where the first resource configuration information is used to configure a first sidelink resource of the second terminal;

The first terminal sends scheduling information to the second terminal, where the scheduling information is used to schedule the second terminal to communicate on the first sidelink resource.
The method according to claim 2, wherein the first resource configuration information is used to configure a first side link resource pool, and the method further comprises:

The first terminal performs resource detection in the first side link resource pool, and selects the first side link resource for the second terminal.
The method according to claim 2 or 3, wherein the first resource configuration information includes one or more of the following information:

A resource configuration mode supported by the first sidelink resource pool configured in the first resource configuration information;

Whether the first terminal needs to perform resource detection in the first sidelink resource pool;

Whether the first sidelink resource pool supports pre-preempting resources;

Whether the first sidelink resource pool supports resource re-evaluation; and

Whether the first sidelink resource pool is a shared resource pool.
The method according to any one of claims 2-4, wherein the first side link resource is configured based on resource configuration parameters, the method further comprising:

The first terminal receives resource configuration parameters sent by the second terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal;

The first terminal sends the resource configuration parameter to the first network device.
The method according to claim 5, wherein the resource configuration parameters are indicated by one or more of the following information:

the sidelink resource configured by the second network device for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The method according to any one of claims 1-6, further comprising:

receiving, by the first terminal, second information sent by the second terminal;

The first terminal sends at least part of the second information to the first network device;

Wherein, the second information includes one or more of the following information:

The second terminal has a requirement for sidelink resources to be scheduled by other terminals;

Quality of Service (QoS) required by the second terminal for sidelink communication;

the amount of data that the second terminal needs to send over the sidelink; and

A connection establishment request for requesting establishment of a sidelink connection with the first terminal.
The method according to any one of claims 1-7, further comprising:

The first terminal sends third information to the second terminal, where the third information includes that the first terminal has the ability to schedule sidelink resources for other terminals, and/or

The third information includes a connection establishment request for requesting establishment of a sidelink connection with the second terminal.
The method according to any one of claims 2-8, wherein if the first side link resource is allocated to the fourth terminal by the third terminal through resource detection, the second terminal The priority of communication on the first side link resource is higher than the priority of communication of the fourth terminal on the first side link resource.
The method according to any one of claims 2-9, further comprising:

The first terminal sends first sidelink control information SCI, where the first SCI is used to indicate that the first sidelink resource is reserved by the first terminal and configured for the second terminal.
The method according to any one of claims 2-10, wherein if the first side link resource is autonomously selected by the fifth terminal through resource detection, the second terminal The priority of the communication on the side link resource is higher than the priority of the communication of the fifth terminal on the first side link resource.
The method according to any one of claims 2-11, wherein if the first side link resource is a side link resource selected by the sixth terminal to assist the seventh terminal, the second The communication priority of the terminal on the first side link resource is higher than the priority of the seventh terminal communication on the first side link resource.
The method according to claim 1, wherein if the first terminal configures a second side link resource for the second terminal through resource detection, and the second side link resource is configured by the eighth If the network device accessed by the terminal is directly configured to the eighth terminal, the priority of the eighth terminal to communicate on the second side link resource is higher than that of the second terminal on the second side link resource. The priority of traffic on the link resource.
The method of claim 13, further comprising:

The first terminal sends second sidelink control information SCI, where the second SCI is used to indicate that the second sidelink resource is reserved by the first terminal and configured for the second terminal.
The method according to claim 1, wherein if the first terminal configures a third side link resource for the second terminal through resource detection, and the third side link resource is configured by the ninth The terminal independently selects through resource detection, then the priority of the ninth terminal communicating on the third side link resource is lower than the priority of the second terminal communicating on the third side link resource .
The method of claim 15, further comprising:

The first terminal sends third sidelink control information SCI, where the third SCI is used to indicate that the third sidelink resource is reserved by the first terminal and configured for the second terminal.
A communication method, characterized in that, comprising:

The second terminal sends fourth information to the second network device, where the fourth information indicates that the second terminal has a requirement for sidelink resource scheduling by the first terminal;

The second terminal receives second configuration information sent by the second network device, where the second configuration information configures the second terminal as a scheduled terminal.
The method of claim 17, further comprising:

The second terminal receives the scheduling information sent by the first terminal, where the scheduling information is used to schedule the second terminal to communicate on the first sidelink resource.
The method of claim 18, wherein the method comprises:

The second terminal sends resource configuration parameters to the first terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal.
The method according to claim 19, wherein the resource configuration parameters are indicated by one or more of the following information:

The second network device configures sidelink resources for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The method according to any one of claims 17-20, further comprising:

The second terminal sends second information to the first terminal, where the second information includes one or more of the following information:

The second terminal has a requirement for sidelink resources to be scheduled by other terminals;

Quality of Service (QoS) required by the second terminal for sidelink communication;

the amount of data that the second terminal needs to send over the sidelink; and

A connection establishment request for requesting establishment of a sidelink connection with the first terminal.
The method according to any one of claims 17-21, further comprising:

The second terminal receives third information sent by the first terminal, where the third information includes that the first terminal has the ability to schedule sidelink resources for other terminals, and/or

The third information includes a connection establishment request for requesting establishment of a sidelink connection with the second terminal.
The method according to any one of claims 17-22, further comprising:

The second terminal sends fifth information to the second network device, where the fifth information is used to indicate the first side link resource.
The method according to any one of claims 18-23, further comprising:

The second terminal sends fourth sidelink control information SCI, where the fourth SCI is used to indicate that the first sidelink resource is reserved by the first terminal and configured for the second terminal.
A communication method, characterized in that, comprising:

The first network device receives first information sent by the first terminal, where the first information indicates that the first terminal has a capability of scheduling sidelink resources for the second terminal;

The first network device sends first configuration information to the sending first terminal, where the first configuration information configures the first terminal as a scheduling terminal.
The method of claim 25, further comprising:

The first network device sends first resource configuration information to the first terminal, where the first resource configuration information is used to configure first sidelink resources of the second terminal.
The method according to claim 26, wherein the first resource configuration information includes one or more of the following information:

A resource configuration mode supported by the first sidelink resource pool configured in the first resource configuration information;

Whether the first terminal needs to perform resource detection in the first sidelink resource pool;

Whether the first sidelink resource pool supports pre-preempting resources;

Whether the first sidelink resource pool supports resource re-evaluation; and

Whether the first sidelink resource pool is a shared resource pool.
The method according to claim 26 or 27, further comprising:

The first network device receives resource configuration parameters sent by the first terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal;

The first network device configures the first side link resource based on the resource configuration parameter.
The method according to claim 28, wherein the resource configuration parameters are indicated by one or more of the following information:

the sidelink resource configured by the second network device for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The method according to any one of claims 25-29, further comprising:

The first network device receives at least part of the second information sent by the first terminal;

Wherein, the second information includes one or more of the following information:

The second terminal has a requirement for sidelink resources to be scheduled by other terminals;

Quality of Service (QoS) required by the second terminal for sidelink communication;

the amount of data that the second terminal needs to send over the sidelink; and

A connection establishment request for requesting establishment of a sidelink connection with the first terminal.
A communication method, characterized in that, comprising:

The second network device receives fourth information sent by the second terminal, where the fourth information indicates that the second terminal has a requirement for sidelink resource scheduling by the first terminal;

The second network device sends second configuration information to the second terminal, where the second configuration information configures the second terminal as a scheduled terminal.
The method of claim 31, wherein said method comprises:

The second network device sends resource configuration parameters to the second terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal.
The method according to claim 32, wherein the resource configuration parameters are indicated by one or more of the following information:

The second network device configures sidelink resources for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The method according to any one of claims 31-33, further comprising:

The second network device receives fifth information sent by the second terminal, where the fifth information is used to indicate the first side link resource.
A first terminal, characterized by comprising:

a sending unit, configured to send first information to the first network device, where the first information indicates that the first terminal has the ability to schedule sidelink resources for the second terminal;

A receiving unit, configured to receive first configuration information sent by the first network device, where the first configuration information configures the first terminal as a scheduling terminal.
The first terminal according to claim 35, wherein,

The receiving unit is further configured to receive first resource configuration information sent by the first network device, where the first resource configuration information is used to configure the first sidelink resource of the second terminal;

The sending unit is further configured to send scheduling information to the second terminal, where the scheduling information is used to schedule the second terminal to communicate on the first sidelink resource.
The first terminal according to claim 36, wherein the first resource configuration information is used to configure the first side link resource pool, and the first terminal further includes:

A processing unit, configured to perform resource detection in the first side link resource pool, and select the first side link resource for the second terminal.
The first terminal according to claim 36 or 37, wherein the first resource configuration information includes one or more of the following information:

A resource configuration mode supported by the first sidelink resource pool configured in the first resource configuration information;

Whether the first terminal needs to perform resource detection in the first sidelink resource pool;

Whether the first sidelink resource pool supports pre-preempting resources;

Whether the first sidelink resource pool supports resource re-evaluation; and

Whether the first sidelink resource pool is a shared resource pool.
The first terminal according to any one of claims 36-38, wherein the sidelink resources are configured based on resource configuration parameters,

The receiving unit is configured to receive resource configuration parameters sent by the second terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal;

The sending unit is configured to send the resource configuration parameter to the first network device.
The first terminal according to claim 39, wherein the resource configuration parameters are indicated by one or more of the following information:

the sidelink resource configured by the second network device for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The first terminal according to any one of claims 35-40, characterized in that,

The receiving unit is further configured to receive second information sent by the second terminal;

The sending unit is further configured to send at least part of the second information to the first network device;

Wherein, the second information includes one or more of the following information:

The second terminal has a requirement for sidelink resources to be scheduled by other terminals;

Quality of Service (QoS) required by the second terminal for sidelink communication;

the amount of data that the second terminal needs to send over the sidelink; and

A connection establishment request for requesting establishment of a sidelink connection with the first terminal.
The first terminal according to any one of claims 35-41, wherein the sending unit is further configured to:

sending third information to the second terminal, where the third information includes that the first terminal has the ability to schedule sidelink resources for other terminals, and/or

The third information includes a connection establishment request for requesting establishment of a sidelink connection with the second terminal.
The first terminal according to any one of claims 36-42, wherein if the first side link resource is allocated to the fourth terminal by the third terminal through resource detection, the second The priority of the communication of the second terminal on the first side link resource is higher than the priority of the communication of the fourth terminal on the first side link resource.
The first terminal according to any one of claims 36-43, characterized in that,

The sending unit is configured to send first side link control information SCI, where the first SCI is used to indicate that the first side link resource is reserved by the first terminal and configured for the second terminal. terminal.
The first terminal according to any one of claims 36-44, wherein if the first side link resource is autonomously selected by the fifth terminal through resource detection, the second terminal The priority of communication on the first side link resource is higher than the priority of communication of the fifth terminal on the first side link resource.
The first terminal according to any one of claims 36-45, wherein if the first side link resource is a side link resource selected by the sixth terminal to assist the seventh terminal, then the The communication priority of the second terminal on the first side link resource is higher than that of the seventh terminal communication on the first side link resource.
The first terminal according to claim 35, wherein if the first terminal configures a second side link resource for the second terminal through resource detection, and the second side link resource is If the network device accessed by the eighth terminal is directly configured for the eighth terminal, then the priority of the eighth terminal to communicate on the second side link resource is higher than that of the second terminal on the second side link resource. Priority for communications on sidelink resources.
The first terminal according to claim 47, wherein,

The sending unit is further configured to send second side link control information SCI, where the second SCI is used to indicate that the second side link resource is reserved by the first terminal and configured for the first terminal. Two terminals.
The first terminal according to claim 35, wherein if the first terminal configures a third side link resource for the second terminal through resource detection, and the third side link resource is The ninth terminal independently selects through resource detection, then the priority of the ninth terminal communicating on the third side link resource is lower than that of the second terminal communicating on the third side link resource priority.
The first terminal according to claim 49, wherein,

The sending unit is further configured to send third side link control information SCI, where the third SCI is used to indicate that the third side link resource is reserved by the first terminal and configured for the first terminal. Two terminals.
A second terminal, characterized by comprising:

a sending unit, configured to send fourth information to a second network device, where the fourth information indicates that the second terminal has a requirement for sidelink resource scheduling by the first terminal;

A receiving unit, configured to receive second configuration information sent by the second network device, where the second configuration information configures the second terminal as a scheduled terminal.
The second terminal according to claim 51, characterized in that,

The receiving unit is further configured to receive scheduling information sent by the first terminal, where the scheduling information is used to schedule the second terminal to communicate on the first sidelink resource.
The second terminal according to claim 52, characterized in that,

The sending unit is further configured to send resource configuration parameters to the first terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal.
The second terminal according to claim 53, wherein the resource configuration parameters are indicated by one or more of the following information:

The second network device configures sidelink resources for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The second terminal according to any one of claims 51-54, characterized in that,

The sending unit is further configured to send second information to the first terminal, where the second information includes one or more of the following information:

The second terminal has a requirement for sidelink resources to be scheduled by other terminals;

Quality of Service (QoS) required by the second terminal for sidelink communication;

the amount of data that the second terminal needs to send over the sidelink; and

A connection establishment request for requesting establishment of a sidelink connection with the first terminal.
The second terminal according to any one of claims 51-55, characterized in that,

The receiving unit is further configured to receive third information sent by the first terminal, where the third information includes that the first terminal has the ability to schedule sidelink resources for other terminals, and/or

The third information includes a connection establishment request for requesting establishment of a sidelink connection with the second terminal.
The second terminal according to any one of claims 51-56, characterized in that,

The sending unit is further configured to send fifth information to the second network device, where the fifth information is used to indicate that the first terminal is the first sidelink scheduled by the second terminal resource.
The second terminal according to any one of claims 52-57, characterized in that,

The sending unit is further configured to send fourth sidelink control information SCI, where the fourth SCI is used to indicate that the first sidelink resource is reserved by the first terminal and configured for the first sidelink resource. Two terminals.
A first network device, characterized by comprising:

a receiving unit, configured to receive first information sent by the first terminal, where the first information indicates that the first terminal has the ability to schedule sidelink resources for the second terminal;

A sending unit, configured to send first configuration information to the sending first terminal, where the first configuration information configures the first terminal as a scheduling terminal.
The first network device as claimed in claim 59, wherein,

The sending unit is further configured to send first resource configuration information to the first terminal, where the first resource configuration information is used to configure first side link resources of the second terminal.
The first network device according to claim 60, wherein the first resource configuration information includes one or more of the following information:

A resource configuration mode supported by the first sidelink resource pool configured in the first resource configuration information;

Whether the first terminal needs to perform resource detection in the first sidelink resource pool;

Whether the first sidelink resource pool supports pre-preempting resources;

Whether the first sidelink resource pool supports resource re-evaluation; and

Whether the first sidelink resource pool is a shared resource pool.
The first network device according to claim 60 or 61, wherein the first network device further comprises a processing unit,

The receiving unit is further configured to receive resource configuration parameters sent by the first terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal;

The processing unit is configured to configure the first side link resource based on the resource configuration parameter.
The first network device according to claim 62, wherein the resource configuration parameters are indicated by one or more of the following information:

the sidelink resource configured by the second network device for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The first network device according to any one of claims 59-63, wherein,

The receiving unit is configured to receive at least part of the second information sent by the first terminal;

Wherein, the second information includes one or more of the following information:

The second terminal has a requirement for sidelink resources to be scheduled by other terminals;

Quality of Service (QoS) required by the second terminal for sidelink communication;

the amount of data that the second terminal needs to send over the sidelink; and

A connection establishment request for requesting establishment of a sidelink connection with the first terminal.
A second network device, characterized in that it includes:

a receiving unit, configured to receive fourth information sent by the second terminal, where the fourth information indicates that the second terminal has a requirement for sidelink resource scheduling by the first terminal;

A sending unit, configured to send second configuration information to the second terminal, where the second configuration information configures the second terminal as a scheduled terminal.
The second network device as claimed in claim 65, wherein,

The sending unit is configured to send resource configuration parameters to the second terminal, where the resource configuration parameters are used to indicate configuration parameters of sidelink resources requested by the second terminal.
The method according to claim 66, wherein the resource configuration parameters are indicated by one or more of the following information:

The second network device configures sidelink resources for the second terminal;

The second network device configures a second sidelink resource pool for the second terminal;

Configuration information of the second sidelink resource pool;

Sidelink resources preconfigured for the second terminal;

a third sidelink resource pool preconfigured for the second terminal; and

Configuration information of the third sidelink resource pool.
The second network device according to any one of claims 65-67, wherein,

The receiving unit is configured to receive fifth information sent by the second terminal, where the fifth information is used to indicate the first sidelink resource.
A communication method, characterized in that, comprising:

The first terminal sends multiple pieces of sixth information, where the sixth information is one or more of a sidelink discovery message, a PC5-S message, and a PC5-RRC message;

The first terminal receives reply information for the sixth information sent by the second terminal;

Wherein, the time domain resources occupied by the multiple pieces of sixth information are different;

The frequency domain resources occupied by the plurality of sixth pieces of information are different; and/or

The beam directions of the multiple beams transmitting the multiple pieces of sixth information are different.
The method according to claim 69, wherein the reply information is carried in the first resource, and the method further comprises:

The first terminal performs sidelink communication with the second terminal on a second resource corresponding to the first resource.
The method according to claim 69 or 70, further comprising:

The first terminal sends the multiple pieces of sixth information in a unicast, multicast, or broadcast manner.
A first terminal, characterized by comprising:

A sending unit, configured to send a plurality of sixth information, where the sixth information is one or more of a sidelink discovery message, a PC5-S message, and a PC5-RRC message;

a receiving unit, configured to receive reply information for the sixth information sent by the second terminal;

Wherein, the time domain resources occupied by the multiple pieces of sixth information are different;

The frequency domain resources occupied by the plurality of sixth pieces of information are different; and/or

The beam directions of the multiple beams transmitting the multiple pieces of sixth information are different.
The first terminal according to claim 72, wherein the reply information is carried in the first resource, and the first terminal further includes:

A communication unit, configured to perform sidelink communication with the second terminal on a second resource corresponding to the first resource.
The first terminal according to claim 72 or 73, characterized in that,

The sending unit is further configured to send the plurality of sixth pieces of information in a unicast, multicast or broadcast manner.
A communication method, characterized in that, comprising:

The first terminal acquires configuration information of the first side link resource pool, where the configuration information is used to indicate that the first side link resource pool supports multiple resource configuration modes, and the different resource configuration modes among the multiple resource configuration modes The resource allocation methods correspond to different priorities.
The method of claim 75, further comprising:

The first terminal schedules the second terminal to communicate on the first side link resource in the first side link resource pool.
The method according to claim 76, wherein if the first side link resource is configured by the network device for the second terminal through the first terminal, and the first side link resources are allocated to the fourth terminal by the third terminal through resource detection, then the priority of the second terminal to communicate on the first side link resource is higher than that of the fourth terminal on the first side link The priority of traffic on uplink resources.
The method according to claim 76 or 77, wherein if the first terminal configures the first side link resource for the second terminal through resource detection, and the first side link If the resource is the sidelink resource selected by the fifth terminal to assist the sixth terminal, then the priority of the second terminal to communicate on the first sidelink resource is higher than that of the sixth terminal on the first sidelink resource. Priority for communications on sidelink resources.
The method according to any one of claims 76-78, wherein if the first side link resource is configured by the network device for the second terminal through the first terminal, and the The first side link resource is directly configured to the eighth terminal by the network device accessed by the eighth terminal, then the priority of the eighth terminal to communicate on the first side link resource is higher than that of the eighth terminal. A priority for the second terminal to communicate on the first sidelink resource.
The method according to any one of claims 76-79, further comprising:

The first terminal sends first sidelink control information SCI, where the first SCI is used to indicate that the first sidelink resource is reserved by the first terminal and configured for the second terminal.
The method according to any one of claims 76-80, wherein if the second side link resource in the first side link resource pool is independently selected by the first terminal through resource detection , and the second side link resource is the side link resource selected by the sixth terminal to assist the seventh terminal, then the priority of the first terminal to communicate on the second side link resource is lower than A priority for the seventh terminal to communicate on the first side link resource.
The method of claim 81, further comprising:

The first terminal sends second sidelink control information SCI, where the second SCI is used to indicate that the second sidelink resource is reserved by the first terminal and configured for the second terminal.
A first terminal device, characterized by comprising:

An obtaining unit, configured to obtain configuration information of the first side link resource pool, where the configuration information is used to indicate that the first side link resource pool supports multiple resource configuration modes, and among the multiple resource configuration modes Different resource allocation methods have different priorities.
The first terminal according to claim 83, further comprising:

A scheduling unit, configured to schedule the second terminal to communicate on the first side link resource in the first side link resource pool.
The first terminal according to claim 84, wherein if the first side link resource is configured by the network device for the second terminal through the first terminal, and the first side link resource Link resources are allocated to the fourth terminal by the third terminal through resource detection, and the priority of the second terminal to communicate on the first side link resource is higher than that of the fourth terminal on the first side link resource. The priority of traffic on a downlink resource.
The first terminal according to claim 84 or 85, wherein if the first terminal configures the first sidelink resource for the second terminal through resource detection, and the first sidelink If the link resource is the sidelink resource selected by the fifth terminal to assist the sixth terminal, then the priority of the second terminal to communicate on the first sidelink resource is higher than that of the sixth terminal on the first sidelink resource. Priority for communications on the first sidelink resource.
The first terminal according to any one of claims 84-86, wherein if the first side link resource is configured by the network device for the second terminal through the first terminal, and The first side link resource is directly configured to the eighth terminal by the network device accessed by the eighth terminal, then the priority of the eighth terminal to communicate on the first side link resource is higher than that of A priority for the second terminal to communicate on the first sidelink resource.
The first terminal according to any one of claims 84-87, wherein the first terminal further comprises:

A first sending unit, configured to send first side link control information SCI, where the first SCI is used to indicate that the first side link resource is reserved by the first terminal and configured for the second terminal. terminal.
The first terminal according to any one of claims 83-87, wherein if the second side link resource in the first side link resource pool is detected by the first terminal through resources Autonomous selection, and the second side link resource is the side link resource selected by the sixth terminal assisting the seventh terminal, then the communication priority of the first terminal on the second side link resource A priority lower than that of the seventh terminal communicating on the first sidelink resource.
The first terminal according to claim 89, further comprising:

The second sending unit is configured to send second sidelink control information SCI, where the second SCI is used to indicate that the second sidelink resources are reserved by the first terminal and configured for the second terminal.
A terminal, characterized by comprising a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute the method described in any one of claims 1-24 method.
A terminal, characterized by comprising a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute the method described in any one of claims 69-71 method.
A terminal, characterized by comprising a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute the method described in any one of claims 75-82 method.
A network device, characterized by comprising a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the program described in any one of claims 25-34 Methods.
An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 1-24.
An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 69-71.
An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method as claimed in any one of claims 25-34.
An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 75-82.
A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-24.
A chip, characterized by comprising a processor for calling a program from a memory, so that a device installed with the chip executes the method according to any one of claims 69-71.
A chip, characterized by comprising a processor for calling a program from a memory, so that a device installed with the chip executes the method according to any one of claims 25-34.
A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device equipped with the chip executes the method according to any one of claims 75-82.
A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 1-24.
A computer-readable storage medium is characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 69-71.
A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 25-34.
A computer-readable storage medium is characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 75-82.
A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 1-24.
A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 69-71.
A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 25-34.
A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 75-82.
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 69-71.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 25-34.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 75-82.