WO2020154866A1

WO2020154866A1 - Data transmission method, terminal device, and storage medium

Info

Publication number: WO2020154866A1
Application number: PCT/CN2019/073517
Authority: WO
Inventors: 卢前溪; 赵振山; 林晖闵
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-01-28
Filing date: 2019-01-28
Publication date: 2020-08-06
Also published as: CN112586065B; CN112586065A

Abstract

Disclosed is a data transmission method, comprising: a first terminal device determines a first resource on the basis of first indication information, the first resource being used for data transmission between the first terminal device and at least one second terminal device. Further disclosed are a terminal device and a storage medium.

Description

Data transmission method, terminal equipment and storage medium

Technical field

The present invention relates to the field of wireless communication technology, in particular to a data transmission method, terminal equipment and storage medium.

Background technique

Device-to-device communication is based on a device-to-device (D2D) side link (Sidelink, SL) transmission technology. The Internet of Vehicles system uses direct communication from user equipment to user equipment to achieve higher spectrum efficiency and lower transmission delay.

However, in related technologies, or such as car networking systems, the discontinuous transmission and reception parameter configuration is not optimized. Or scenarios such as wearable devices and proximity-based services (Proximity-based Service, ProSe). Although the discontinuous transmission and reception parameter configuration is optimized, there are still resource conflicts and waste of resources in direct communication. Affected the success rate of access.

Summary of the invention

To solve the foregoing technical problems, embodiments of the present invention provide a data transmission method, terminal device, and storage medium, which can avoid resource conflicts and resource waste in direct communication, and improve the access success rate.

In a first aspect, an embodiment of the present invention provides a data transmission method, including: a first terminal device determines a first resource based on first indication information, and the first resource is used for the first terminal device and at least one second terminal The device performs data transmission.

In a second aspect, an embodiment of the present invention provides a first terminal device, including: a processing unit configured to determine a first resource based on first indication information, where the first resource is used for the first terminal device and at least one first resource 2. The terminal equipment performs data transmission.

In a third aspect, an embodiment of the present invention provides a first terminal device, which includes a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the computer program when the computer program is running. The steps of the above data transmission method.

In a fourth aspect, an embodiment of the present invention provides a storage medium storing an executable program, and when the executable program is executed by a processor, the foregoing data transmission method is implemented.

In the data transmission method provided by the embodiment of the present invention, the first resource used by the first terminal device and the second terminal device for data transmission is determined according to the first indication information; in this way, the first terminal device and the second terminal device can be avoided Resource conflict and waste of resources when devices communicate directly.

Description of the drawings

FIG. 1 is a schematic diagram of the processing flow of the present invention for mode A data transmission;

FIG. 2 is a schematic diagram of the processing flow of data transmission in mode B according to the present invention;

3 is a schematic diagram of the composition structure of a communication system according to an embodiment of the present invention;

4 is a schematic diagram of an optional processing flow of a data transmission method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a first terminal device determining a first resource according to an embodiment of the present invention;

6 is a schematic diagram of determining resources by a first terminal device and a second terminal device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a first terminal device or a second terminal device determining resources according to an embodiment of the present invention;

8 is an optional schematic diagram 1 of data transmission between a first terminal device and a second terminal device according to an embodiment of the present invention;

FIG. 9 is an optional second schematic diagram of data transmission between a first terminal device and a second terminal device according to an embodiment of the present invention;

10 is a schematic diagram of the composition structure of a first terminal device according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of the hardware composition structure of a terminal device according to an embodiment of the present invention.

detailed description

In order to understand the features and technical content of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and explanation purposes only, and are not used to limit the embodiments of the present invention.

Before describing the embodiments of the present invention in detail, first a brief description of direct communication is given.

In the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP), two data transmission modes are defined, namely mode A and mode B.

For mode A, the data transmission process is shown in Figure 1. The transmission resources of the terminal equipment are allocated by the base station. The terminal equipment transmits data on the side link according to the resources allocated by the base station; the base station can allocate the terminal equipment The resources of a single transmission can also be allocated to the terminal equipment for semi-static transmission resources.

For mode B, the data transmission process is shown in Figure 2. The terminal device obtains a set of available transmission resources by means of listening in the resource pool, and the terminal device randomly selects a resource from the set for side link data transmission. transmission.

In Rel-12/13, device-to-device communication is studied for ProSe scenarios, especially for public safety services. Among them, the discontinuous transmission and reception parameters are configured or pre-configured by the network device. Based on the network equipment or terminal equipment propagating the timing reference signal, the terminal equipment communicating with each other is only configured with the same discontinuous transmission and reception parameter configuration, that is, the pre-configuration based on heartache or the configuration of the network equipment, the terminal equipment has the discontinuous transmission and reception parameters Only when the configuration has the same cognition can the data transmission and reception between terminal devices be realized.

In Rel-14/15, the Internet of Vehicles system has been studied for the communication scenarios between vehicles, especially for the relatively high-speed moving vehicle-vehicle and vehicle-person communication services. In the Internet of Vehicles environment, automotive terminal equipment has a fixed power input, so there is no configuration of discontinuous transmission and reception parameters; that is, it is assumed that automotive terminal equipment has been in a continuous receiving state. Handheld terminal equipment does not have a fixed power source income. In terms of working principle, discontinuous reception needs to be considered; however, because discontinuous reception violates the low latency requirements of the vehicle network; therefore, handheld terminals in the Internet of Vehicles environment The device does not realize the data receiving function, but is in a one-way sending state; that is, relying on the receiving function of the automobile terminal equipment to complete the one-way data transmission.

In Rel-14, the scenario where wearable devices access the network through mobile phones is studied, especially for scenarios with low mobile speed and low power access. In the scenario of wearable devices, the discontinuous data transmission and reception mode used in the communication between the wearable device and the mobile phone is studied; the method used is: the base station configures the discontinuous data of the remote terminal device through the relay terminal device Send and receive parameters. After receiving the discontinuous transmission and reception parameters configured by the base station, the remote terminal device communicates with the relay terminal device based on the discontinuous transmission and reception parameters.

Therefore, in related technologies, the Internet of Vehicles system does not optimize the discontinuous transmission and reception. Although the ProSe scene and the wearable device scene are optimized for discontinuous transmission and reception, they have the following problems:

When multiple terminal devices want to access the same terminal device at the same time, or when one terminal device wants to access multiple terminal devices, it is impossible to distinguish resources for different access devices or accessed devices; that is, multiple The access device or the accessed device simultaneously use the same resources for communication, which causes resource conflicts and reduces the access success rate.

In addition, when resources conflict, the terminal device determines the sending or receiving direction by itself (in related technologies, sending data takes priority over receiving data); this will cause the first terminal device to send data to the second terminal device, and the second terminal device The device is sending data to the third terminal device; that is, the conflict in the duplex mode. In this way, not only the access request sent by the first terminal device cannot be received, but the first terminal device needs to send the access request multiple times until the second terminal device is in the receiving state; it not only wastes the transmission power of the first terminal device And send resources, and reduce the access success rate.

Based on the above problems, the present invention provides a data transmission method. The data transmission method in the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (GSM) Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access, WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 3. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or a terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network side devices in 5G networks, or network devices in the future evolution of Public Land Mobile Network (PLMN), etc.

The communication system 100 further includes at least one terminal device 120 located within the coverage area of the network device 110. The "terminal equipment" used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device set to receive/send communication signals; and/or Internet of Things (IoT) equipment. A terminal device set to communicate through a wireless interface may be called a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Figure 3 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

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

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 3 as an example, the communication device may include a network device 110 having a communication function and a terminal device 120. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.

An optional processing flow of the data transmission method provided by the embodiment of the present invention, as shown in FIG. 4, includes the following steps:

Step S201: The first terminal device determines a first resource based on the first indication information, where the first resource is used for data transmission between the first terminal device and at least one second terminal device.

In some embodiments, the first indication information includes: an identifier of the first terminal device. The identity of the first terminal device includes at least one of the following: the user identity of the first terminal device, at least one first communication group identity to which the first terminal device belongs, and the identity of the first terminal device The identification of at least one supported first communication service and the address information of the first terminal device. The identifier of the first terminal device includes: a high-level identifier and/or an access layer identifier. Wherein, the address information of the first terminal device includes at least one of the following: address information of the access layer, address information of layer 2; the address information of the first terminal device includes: source address and/or target address.

For example, Y time resources are configured in a specific time period, and the first resource is selected for data transmission on the Y time resources. The Y time resources may be non-continuous as an example. If the first indication information includes the identifier of the first terminal device as X, the identifier of the first terminal device can be modulated, namely mod (X, Y), and the result of the modulo is the first terminal used for data transmission. One resource. Since different terminal devices, communication groups to which different terminal devices belong, and communication services supported by different terminal devices all have different identities, the results obtained by modulating the corresponding identities of different first terminal devices are different. That is, the terminal devices corresponding to different identifiers use different resources for data transmission, which is beneficial to balance the access signaling load in the network.

In the foregoing embodiment, the identifier of the first terminal device is used as the reference factor for determining the first resource. In specific implementation, the identification of the first terminal device may not be used as a reference factor for determining the first resource; that is, the Y time resources may be used by different user equipment, or different communication groups, or different communication services.

Regardless of whether the identification of the first terminal device is used as a reference factor for determining the first resource, the first terminal device may determine the first resource based on the discontinuous parameter configuration for the resource; the discontinuous parameter configuration includes: periodic configuration of the discontinuous resource , And/or timer duration. A schematic diagram of the first terminal device determining the first resource is shown in FIG. 5.

In other embodiments, the first indication information includes: an identifier of the second terminal device. The identifier of the second terminal device includes at least one of the following: the user identifier of the second terminal device, at least one second communication group identifier to which the second terminal device belongs, and the identity of the second terminal device The identification of at least one supported second communication service and the address information of the second terminal device. The identifier of the second terminal device includes: a high-level identifier and/or an access layer identifier. Wherein, the address information of the second terminal device includes at least one of the following: address information of the access layer, address information of layer 2; the address information of the second terminal device includes: source address and/or target address.

In a specific implementation, the data transmission between the first terminal device and at least one second terminal device is: when the first terminal device establishes a connection with at least one second terminal device, the first terminal device receives the at least one terminal device. A first message sent by a second terminal device. Wherein, the first message is used for the first terminal device to establish a connection with the at least one second terminal device. Optionally, the first message is an access request message, and the second terminal device requests to establish a connection with the first terminal device based on the access request message. Before the second terminal device sends the first message to the first terminal device, the second terminal device may determine the first resource based on the identification of the first terminal device in the first indication information, where the first resource is sending the first message, and The resource used by the first terminal device and the second terminal device for data transmission. Optionally, before the second terminal device sends the first message, the second terminal device listens to the second message sent by the first terminal device on the first resource, and the second message is used for the first terminal device to notify Related access parameters. Optionally, the second message is an access broadcast message. Optionally, the access broadcast message is used to notify itself that it can receive an access request message, or it is used to notify itself that it can establish a connection with other terminal devices; after the second terminal device listens to the second message, The first terminal device sends the first message.

Or, as shown in FIG. 6, after determining the first resource based on the identifier of the first terminal device, the second terminal device sends a first message to the first terminal device on the first resource, requesting to establish a connection with the first terminal device; Optionally, the first resource is N time resources. Subsequently, before the second terminal device sends data to the first terminal device, the resource used for data transmission is determined according to the identifier of the second terminal device in the first indication information. For example, the first resource is N time resources, and the second resource is selected for data transmission on the N time resources, and the N time resources may be non-contiguous. The identifier of the second terminal device is N, and the identifier of the second terminal device can be modulated, that is, mod(Z, N), and the result of the modulo is the second resource used for data transmission.

In the embodiment of the present invention, since different terminal devices, communication groups to which different terminal devices belong, and communication services supported by different terminal devices all have different identifiers, the identifiers corresponding to different second terminal devices are modulated. The results obtained are also different, that is, the terminal devices corresponding to different identifiers use different resources for data transmission, and different second terminal devices send access request messages at different time resources, which is beneficial to balance the access in the network. Signaling load.

In the foregoing embodiment, the identifier of the second terminal device is used as a reference factor for determining the second resource. In specific implementation, the identifier of the second terminal device may not be used as a reference factor for determining the first resource; the N time resources may be used by different user equipment, or different communication groups, or different communication services. That is, a different second terminal device selects a time resource among the available time resources to send the first message to the first terminal device.

It should be noted that after the first terminal device establishes a connection with the second terminal device, the first terminal device can perform data transmission with the second terminal device; when the first terminal device needs to send data to the second terminal device, the first terminal device needs to send data to the second terminal device. The terminal device needs to determine whether the resources used to send data conflict with the resources used by the first terminal device to receive data, or whether the resources used by the first terminal device to send data are a subset of the resources used by the first terminal device to receive data conflict. When the judgment result is a conflict, the method further includes:

Based on the second indication information, the first terminal device determines to give priority to data transmission or to give priority to data reception. Wherein, the second indication information includes at least one of the following: a quality of service (Quality of Service, QoS) attribute of the data and a configuration from a network device. Taking the second indication information including the QoS attribute of the data as an example, when the QoS attribute meets the preset condition, data transmission is given priority, or when the QoS attribute meets the preset condition, data reception is given priority. Taking the QoS attribute as the QoS Class Identifier (QCI) as an example, if the QoS-related value is greater than or less than the preset QoS-related value threshold, the data transmission is given priority; the data transmission is unicast transmission, or Multicast transmission, or broadcast transmission. Taking the second indication information including the configuration from the network device as an example, when the network device configures related parameters to indicate priority to receive data, when the resource used by the first terminal device for sending data conflicts with the resource used for receiving data, Give priority to data reception. In the embodiment of the present invention, as shown in FIG. 7, the resources used for data reception and the resources used for data transmission are independent of each other. Therefore, when the first terminal device is sending data, the second terminal device also The access request can be sent to the first terminal device.

It should be noted that, in the embodiment of the present invention, the first terminal device and at least one second terminal device perform data transmission, including: the first terminal device transmits data to the at least one second terminal device, or The first terminal device receives data from the at least one second terminal device. Optionally, the data is side link data.

Based on the above-mentioned embodiment, the first terminal device and the second terminal device in the embodiment of the present invention perform data transmission optional schematic diagram 1. As shown in FIG. After the resource, the second terminal device calculates the time domain resource or the frequency domain resource for data transmission with the first terminal device, and sends an access request message to the first terminal device to establish a connection; then, the first terminal device determines whether priority Perform data reception. Or, alternative schematic diagram 2 of data transmission between the first terminal device and the second terminal device in the embodiment of the present invention. As shown in FIG. 9, the first terminal device determines the data receiving and/or sending data according to the discontinuous parameter configuration. After the resources, the second terminal device calculates the time domain resources and/or frequency domain resources of the data sent by the first terminal device; the second terminal device receives the time domain resources and/or frequency domain resources obtained by the calculation from the first terminal device Sidelink discovery message, and calculate the time domain resource or frequency domain resource for the first terminal device to send data; send an access request message to the first terminal device to establish a connection; then, the first terminal device determines the priority Data transmission or data reception.

In the embodiment of the present invention, after determining the first resource for data reception, the first terminal device only turns on the receiver at the time position corresponding to the first resource; turns off the receiver at other time positions other than the first resource. After determining the first resource for data transmission, the first terminal device only turns on the transmitter at the time position corresponding to the first resource; turns off the transmitter at other time positions other than the first resource. In this way, power can be saved.

The embodiment of the present invention also provides a first terminal device. A schematic diagram of the composition structure of the first terminal device 300, as shown in FIG. 10, includes:

The processing unit 301 is configured to determine a first resource based on the first indication information, where the first resource is used for data transmission between the first terminal device and at least one second terminal device.

In some embodiments, the first indication information includes an identifier of the first terminal device.

In some embodiments, the identifier of the first terminal device includes at least one of the following: a user identifier of the first terminal device, at least one first communication group identifier to which the first terminal device belongs, and The identification of at least one first communication service supported by the first terminal device and the address information of the first terminal device.

In some embodiments, the identifier of the first terminal device includes: a high-level identifier and/or an access layer identifier.

In some embodiments, the first indication information further includes: a second terminal device identifier. The identifier of the second terminal device includes at least one of the following: the user identifier of the second terminal device, at least one second communication group identifier to which the second terminal device belongs, and the identity of the second terminal device The identification of at least one supported second communication service and the address information of the second terminal device.

In some embodiments, the first terminal device further includes: a first transceiving unit 302 configured to receive a first message sent by the at least one second terminal device; the first message is for the first terminal The device establishes a connection with the at least one second terminal device.

In some embodiments, the first message is sent after the at least one second terminal device monitors the second message sent by the first terminal device on the first resource, and the second message is used for The first terminal device notifies related access parameters.

In some embodiments, the first terminal device further includes a second transceiving unit 303 configured to send data to the at least one second terminal device and/or receive data from the at least one second terminal device.

In some embodiments, the processing unit 301 is further configured to determine whether to give priority to data transmission or to give priority to data reception based on the second indication information.

In some embodiments, the second indication information includes at least one of the following: QoS attributes of the data and configuration from the network device.

In some embodiments, the first resource includes: time domain resources and/or frequency domain resources. The discontinuous parameter configuration includes at least: periodic configuration of discontinuous resources and/or timer duration.

An embodiment of the present invention further provides a first terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above data transmission when the computer program is running. Method steps.

FIG. 11 is a schematic diagram of the hardware composition structure of a terminal device (first terminal device) according to an embodiment of the present invention. The terminal device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704. The various components in the terminal device 700 are coupled together through the bus system 705. It can be understood that the bus system 705 is used to implement connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are marked as the bus system 705 in FIG. 11.

It can be understood that the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. Among them, the non-volatile memory can be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage. The volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (SRAM, Static Random Access Memory), synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), and dynamic random access memory. Memory (DRAM, Dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, Synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), enhanced -Type synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous connection dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, Direct Rambus Random Access Memory) ). The memory 702 described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

The memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal device 700. Examples of these data include: any computer program used to operate on the terminal device 700, such as an application program 7022. The program for implementing the method of the embodiment of the present invention may be included in the application program 7022.

The method disclosed in the foregoing embodiment of the present invention may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 701 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present invention can be directly embodied as execution and completion by a hardware decoding processor, or execution and completion by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the terminal device 700 may be used by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing method.

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

Optionally, the storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application. For brevity, details are not repeated here.

The present invention is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment can be generated A device that implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

The above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in Within the protection scope of the present invention.

Claims

A data transmission method, the method includes:

The first terminal device determines a first resource based on the first indication information, where the first resource is used for data transmission between the first terminal device and at least one second terminal device.
The method according to claim 1, wherein the first indication information includes an identification of the first terminal device.
The method according to claim 1, wherein the identifier of the first terminal device includes at least one of the following:

The user identifier of the first terminal device;

At least one first communication group identifier to which the first terminal device belongs;

An identifier of at least one first communication service supported by the first terminal device;

Address information of the first terminal device.
The method according to claim 2 or 3, wherein the identifier of the first terminal device comprises: a high-level identifier and/or an access layer identifier.
The method according to any one of claims 1 to 4, wherein the first indication information includes: a second terminal device identifier.
The method according to claim 5, wherein the identifier of the second terminal device includes at least one of the following:

The user identifier of the second terminal device;

At least one second communication group identifier to which the second terminal device belongs;

An identifier of at least one second communication service supported by the second terminal device;

Address information of the second terminal device.
The method according to any one of claims 1 to 6, wherein the data transmission between the first terminal device and the at least one second terminal device comprises:

The first terminal device receives a first message sent by the at least one second terminal device; the first message is used for the first terminal device to establish a connection with the at least one second terminal device.
The method according to claim 7, wherein the first message is sent after the at least one second terminal device listens to the second message sent by the first terminal device on the first resource, and the The second message is used by the first terminal device to notify related access parameters.
The method according to any one of claims 1 to 7, wherein the data transmission between the first terminal device and at least one second terminal device comprises:

The first terminal device sends data to the at least one second terminal device, and/or the first terminal device receives data from the at least one second terminal device.
The method according to any one of claims 1 to 9, wherein the method further comprises:

Based on the second indication information, the first terminal device determines whether to give priority to data transmission or to give priority to data reception.
The method according to claim 10, wherein the second indication information includes at least one of the following:

QoS attributes of data service quality;

Configuration from the network device.
The method according to any one of claims 1 to 11, wherein the first resource comprises: time domain resources and/or frequency domain resources.
The method according to any one of claims 1 to 12, wherein the first indication information comprises: discontinuous parameter configuration for resources.
The method according to claim 13, wherein the discontinuous parameter configuration includes at least one of the following:

Periodic configuration of discontinuous resources;

Timer duration.
A first terminal device, the first terminal device includes:

The processing unit is configured to determine a first resource based on the first indication information, where the first resource is used for data transmission between the first terminal device and at least one second terminal device.
The first terminal device according to claim 15, wherein the first indication information includes an identification of the first terminal device.
The first terminal device according to claim 15, wherein the identifier of the first terminal device includes at least one of the following:

The user identifier of the first terminal device;

At least one first communication group identifier to which the first terminal device belongs;

An identifier of at least one first communication service supported by the first terminal device;

Address information of the first terminal device.
The first terminal device according to claim 16 or 17, wherein the identifier of the first terminal device comprises: a high-level identifier and/or an access layer identifier.
The first terminal device according to any one of claims 15 to 18, wherein the first indication information comprises: a second terminal device identifier.
The first terminal device according to claim 19, wherein the identifier of the second terminal device includes at least one of the following:

The user identifier of the second terminal device;

At least one second communication group identifier to which the second terminal device belongs;

An identifier of at least one second communication service supported by the second terminal device;

Address information of the second terminal device.
The first terminal device according to any one of claims 15 to 20, wherein the first terminal device further comprises:

The first transceiver unit is configured to receive a first message sent by the at least one second terminal device; the first message is used for the first terminal device to establish a connection with the at least one second terminal device.
The first terminal device according to claim 21, wherein the first message is sent by the at least one second terminal device after listening to the second message sent by the first terminal device on the first resource The second message is used by the first terminal device to notify related access parameters.
The first terminal device according to any one of claims 15 to 22, wherein the first terminal device further comprises:

The second transceiver unit is configured to send data to the at least one second terminal device and/or receive data from the at least one second terminal device.
The first terminal device according to any one of claims 15 to 23, wherein the processing unit is further configured to determine whether to give priority to data transmission or to give priority to data reception based on the second indication information.
The first terminal device according to claim 24, wherein the second indication information includes at least one of the following:

QoS attributes of data service quality;

Configuration from the network device.
The first terminal device according to any one of claims 15 to 25, wherein the first resource comprises: time domain resources and/or frequency domain resources.
The first terminal device according to any one of claims 15 to 26, wherein the first indication information comprises: discontinuous parameter configuration for resources.
The first terminal device according to claim 27, wherein the discontinuous parameter configuration includes at least one of the following:

Periodic configuration of discontinuous resources;

Timer duration.
A first terminal device includes a processor and a memory for storing a computer program that can run on the processor, wherein:

When the processor is used to run the computer program, it executes the steps of the data transmission method according to any one of claims 1 to 14.
A storage medium storing an executable program, and when the executable program is executed by a processor, the data transmission method according to any one of claims 1 to 14 is realized.