WO2021036834A1

WO2021036834A1 - Resource indication method and apparatus

Info

Publication number: WO2021036834A1
Application number: PCT/CN2020/109377
Authority: WO
Inventors: 李添泽; 马驰翔; 向铮铮; 卢磊
Original assignee: 华为技术有限公司
Priority date: 2019-08-23
Filing date: 2020-08-14
Publication date: 2021-03-04
Also published as: CN112423391A; CN112423391B

Abstract

Provided are a resource indication method and apparatus, relating to the technical field of communications. Specifically, the method and the apparatus can be applied to the field of the Internet of Vehicles, such as V2X, LTE-V and V2V, or the field of intelligent driving, intelligent connected vehicles, etc., can reduce the collision between resources of periodic services and resources of aperiodic service in a system, and can improve system efficiency. The method comprises: a first terminal device determining a first time-frequency resource for sending periodic service data, and determining a second time-frequency resource for sending aperiodic service data, the second time-frequency resource comprising at least one time-frequency resource unit; sending resource indication information, wherein the resource indication information is used for indicating the first time-frequency resource, and/or a first time-frequency offset; and sending the periodic service data on the first time-frequency resource, and sending the aperiodic service data on the second time-frequency resource.

Description

Resource indicating method and device

This application claims the priority of the Chinese patent application filed with the State Intellectual Property Office on August 23, 2019, the application number is 201910785962.5, and the invention title is "resource indication method and device", the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of communication technology, and in particular to a resource indication method and device.

Background technique

With the development of wireless communication technology, people's demand for understanding and communicating with people or things around them has gradually increased. Therefore, device-to-device (D2D) technology has emerged. D2D technology allows direct discovery and direct communication between multiple devices that support D2D functions. However, the Internet of Vehicles requires extremely high security and high latency requirements. At present, D2D technology cannot achieve low latency, so it cannot meet the needs of Internet of Vehicles.

In order to improve the security of the Internet of Vehicles, in the network based on long-term evolution (LTE) technology proposed by the 3rd generation partnership project (3GPP), vehicles communicate with everything (vehicle-to-vehicle). -Everything, V2X) Internet of Vehicles technology is proposed. V2X communication refers to the communication between the vehicle and anything outside. As shown in Figure 1, V2X includes vehicle-to-vehicle communication (V2V), vehicle-to-pedestrian communication (V2P), and vehicle-to-vehicle communication (V2P). Facilities communication (vehicle to infrastructure, V2I), vehicle to network communication (vehicle to network, V2N). In V2X, unlike the uplink (UL) and downlink (DL) transmission between the terminal and the base station, direct transmission between devices can be carried out, and the direct link between 3GPP devices is defined as a side line Link (sidelink, SL).

In LTE V2X, for periodic services, a terminal can use a long term sensing (LTS) mechanism to reserve communication resources to reduce resource collisions with other terminals. Specifically, the terminal periodically sends data, and the terminal sends sidelink control information (SCI), and the SCI indicates the time-frequency resources occupied by the terminal to send the aforementioned data. The terminal also needs to listen to the SCI of other terminals to learn the time-frequency resources that have been occupied by other terminals. In this way, when the terminal sends data, it can exclude time-frequency resources that have been occupied by other terminals, select time-frequency resources for sending periodic service data on idle resources, and send data on the selected time-frequency resources. The terminal can also send SCI to inform other terminals of the time-frequency resources occupied by itself.

However, the existing resource reservation mechanism can only reduce the probability of resource collisions between terminals and periodic services.

Summary of the invention

The embodiment of the present application provides a resource indication method, which can further reduce the collision between the resource of the periodic service and the resource of the non-periodic service in the system, and improve the system efficiency.

To achieve the foregoing objectives, the following technical solutions are adopted in the embodiments of the present application:

In the first aspect, an embodiment of the present application provides a resource indication method, which may be executed by a first terminal device or a component (such as a chip system) of the first terminal device. The method includes: the first terminal device determines a transmission period The first time-frequency resource of the service data, and the second time-frequency resource that is used to send the aperiodic service data is determined. The first terminal device sends resource indication information, the first terminal device sends periodic service data on the first time-frequency resource, and sends aperiodic service data on the second time-frequency resource. Wherein, the second time-frequency resource includes at least one time-frequency resource unit; the resource indication information is used to indicate the first time-frequency resource and/or the first time-frequency offset; the first time-frequency offset is a period of periodic service data The offset of the time-frequency starting position between the time-frequency resource used to send aperiodic service data and the time-frequency resource used to send periodic service data in.

In this way, the first terminal device can send aperiodic service data on the at least one time-frequency resource unit to meet the resource requirements of the aperiodic service terminal. In addition, the first terminal device sends resource indication information, where the resource indication information is used to indicate the first time-frequency resource and/or the first time-frequency offset. In this way, other terminal devices can learn the first time-frequency resource and the second time-frequency resource of the first terminal device after listening to the resource indication information from the first terminal device, so that other terminal devices can exclude other terminal devices from being used by the first terminal. For the time-frequency resources occupied by the device, resources that can be used to send periodic service data and/or aperiodic service data are selected from the unoccupied time-frequency resources. That is, the probability of resource collisions between terminal devices can be reduced.

In a possible design, the first terminal device determining the second time-frequency resource for sending aperiodic service data includes: the first terminal device determines the second time-frequency resource for sending aperiodic service data according to the aperiodic resource parameter Frequency resources, non-periodic resource parameters include the reference time-frequency resource size and the first time-frequency offset.

In one possible design, the non-periodic resource parameters are pre-configured.

Or, the aperiodic resource parameter is configured to the terminal by the network device. Specifically, the first terminal device receives the first signaling from the network device, the first signaling carries aperiodic resource parameters, and the first signaling is a radio resource control RRC message or downlink control information DCI.

In a possible design, the method further includes: the first terminal device detects one or more resource indication information of one or more second terminal devices.

The first terminal device determining the first time-frequency resource for sending periodic service data includes: the first terminal device determines based on aperiodic resource parameters and/or one or more resource indication information of one or more second terminal devices The first time-frequency resource of the first terminal device, where the first time-frequency resource includes resources in the resource pool other than the time-frequency resource indicated by one or more resource indication information, or the first time-frequency resource of the first terminal device Frequency resources include resources in the resource pool except those indicated by one or more resource indication information, and those determined by aperiodic resource parameters and one or more resource indication information for one or more second terminal devices to send aperiodic service data. For resources other than resources, aperiodic resource parameters include the reference time-frequency resource size and the first time-frequency offset.

The second time-frequency resource determined by the first terminal device to send aperiodic service data includes:

If the size of the idle resource is greater than the size of the reference time-frequency resource, the first terminal device determines the second time-frequency resource from the idle resource according to the aperiodic resource parameter; if the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the first terminal device The resource parameter determines the second time-frequency resource from the idle resource and one or more time-frequency resources of the second terminal device used to send aperiodic service data; wherein the idle resource is the one or more resource indication information indications in the resource pool The time-frequency resource and the resources other than the first time-frequency resource, or the idle resource is the time-frequency resource in the resource pool except one or more resource indication information indicated by the non-periodic resource parameter and one or more resource indication information The determined resources used for one or more second terminal devices to send aperiodic service data, and resources other than the first time-frequency resource.

In a second aspect, the present application provides a resource indication method, which can be executed by a network device or a component in the network device (such as a chip system). The method includes: the network device determines aperiodic resource parameters and reports to the first terminal device Send aperiodic resource parameters. Wherein, the aperiodic resource parameter includes the reference time-frequency resource size and the first time-frequency offset, and the first time-frequency offset is the time-frequency resource used to send the aperiodic service data in one cycle of the periodic service data of the first terminal device The offset of the time-frequency start position from the time-frequency resource used to send periodic service data.

In a possible design, the network device sending aperiodic resource parameters to the first terminal device includes:

The network device sends first signaling to the first terminal device, the first signaling carries aperiodic resource parameters, and the first signaling includes a radio resource control RRC message or downlink control information DCI.

In a third aspect, the present application provides a device for resource indication. The device may be the aforementioned first terminal device or a component in the first terminal device. The device includes: a processing unit configured to determine whether to send periodic services The first time-frequency resource of the data; the processing unit is also used to determine the second time-frequency resource used to send aperiodic service data, the second time-frequency resource includes at least one time-frequency resource unit; the transceiver unit is used to send a resource indication Information, the resource indication information is used to indicate the first time-frequency resource and/or the first time-frequency offset; the first time-frequency offset is the time-frequency resource used to send aperiodic service data in one cycle of the periodic service data and The offset of the time-frequency start position between the time-frequency resources used to send periodic service data; the transceiver unit is also used to send periodic service data on the first time-frequency resource, and send aperiodic data on the second time-frequency resource Business data.

In a possible design, the processing unit is configured to determine the second time-frequency resource for sending aperiodic service data, including: determining the second time-frequency resource for sending aperiodic service data according to the aperiodic resource parameter Resources, non-periodic resource parameters include the reference time-frequency resource size and the first time-frequency offset.

In a possible design, the aperiodic resource parameters are pre-configured; or, the transceiver unit is also used to receive the first signaling from the network device, the first signaling carries the aperiodic resource parameters, and the first signaling is wireless Resource control RRC message or downlink control information DCI.

In a possible design, the processing unit is also used to detect one or more resource indication information of one or more second terminal devices; the processing unit is used to determine the first time-frequency resource used to send periodic service data , Including: determining the first time-frequency resource of the first terminal device based on aperiodic resource parameters and/or one or more resource indication information of one or more second terminal devices, where the first time-frequency resource includes Resources in the resource pool other than the time-frequency resources indicated by one or more resource indication information, or the first time-frequency resource of the first terminal device includes resources in the resource pool except those indicated by one or more resource indication information and resources The aperiodic resource parameters and one or more resource indication information indicate resources other than the resources determined to be used for one or more second terminal devices to send aperiodic service data. The aperiodic resource parameters include the reference time-frequency resource size and the first Time-frequency offset.

In a possible design, the processing unit is further configured to detect one or more resource indication information of one or more second terminal devices.

The processing unit is configured to determine the second time-frequency resource used to send aperiodic service data, including:

If the size of the idle resource is greater than the size of the reference time-frequency resource, the first terminal device determines the second time-frequency resource from the idle resource according to the aperiodic resource parameter;

If the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the first terminal device determines the second time according to the aperiodic resource parameter from the idle resource and the time-frequency resources of one or more second terminal devices for sending aperiodic service data. Frequency resource

Wherein, idle resources are resources in the resource pool other than the time-frequency resources and the first time-frequency resources indicated by one or more resource indication information, or idle resources are resources in the resource pool except those indicated by one or more resource indication information Time-frequency resources, resources determined by aperiodic resource parameters and one or more resource indication information for one or more second terminal devices to send aperiodic service data, and resources other than the first time-frequency resource.

In a fourth aspect, this application provides an apparatus for resource indication, which may be the aforementioned network equipment or a component in the network equipment. The device includes:

The processing unit is configured to determine aperiodic resource parameters. The aperiodic resource parameters include a reference time-frequency resource size and a first time-frequency offset, where the first time-frequency offset is used in a period of the periodic service data of the first terminal device The offset of the time-frequency starting position between the time-frequency resource for sending aperiodic service data and the time-frequency resource for sending periodic service data; the transceiver unit is used to send the aperiodic resource parameter to the first terminal device.

In a possible design, the transceiver unit, configured to send aperiodic resource parameters to the first terminal device, includes: sending first signaling to the first terminal device, the first signaling carrying the aperiodic resource parameters, and A signaling includes radio resource control RRC message or downlink control information DCI.

In a possible design of the foregoing aspects, the second time-frequency resource includes at least two time-frequency resource units;

The resource indication information is also used to indicate the time interval between two adjacent time-frequency resource units and the size of the time-frequency resource unit in the second time-frequency resource.

In a possible design of the foregoing aspects, the resource indication information is also used to indicate the priority between resource units or resource unit groups included in the time-frequency resource unit.

In a possible design of the above aspects, the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the channel busy ratio CBR of the second time-frequency resource is smaller than the first threshold, or the CBR of the second time-frequency resource is smaller than the idle CBR of resources other than the second time-frequency resource.

In a possible design of the foregoing aspects, the non-periodic resource parameters further include the time interval between two adjacent time-frequency resource units in the second time-frequency resource of the first terminal device, and the size of the time-frequency resource unit, the first The second time-frequency resource of the terminal device is a time-frequency resource used to send aperiodic service data.

In a fifth aspect, the present application provides a device for resource indication, which has the function of implementing the resource indication method of any one of the first aspect or the second aspect. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

In a sixth aspect, a device is provided, including: a processor and a memory; the memory is used to store computer-executable instructions, and when the device is running, the processor executes the computer-executable instructions stored in the memory, so that the device executes such as The resource indication method of any one of the foregoing first aspect or second aspect.

In a seventh aspect, a device is provided, including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the resource indication method according to any one of the first aspect or the second aspect according to the instruction .

In an eighth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the resources of any one of the first aspect or the second aspect. Indication method.

In a ninth aspect, a computer program product containing instructions is provided, which when running on a computer, enables the computer to execute the resource indication method of any one of the first aspect or the second aspect.

In a tenth aspect, a circuit system is provided, the circuit system includes a processing circuit, and the processing circuit is configured to execute the resource indication method of any one of the first aspect or the second aspect described above.

In an eleventh aspect, a communication device is provided. The communication device includes a processor, the processor is coupled with a memory, and the memory stores program instructions. When the program instructions stored in the memory are executed by the processor, any of the first aspect or the second aspect described above is implemented. For the resource indication method of one item, the communication device may be a chip or a chip system, such as a system on chip (SOC), or a baseband chip, where the baseband chip may include a processor, a channel encoder, a digital signal processor, Modems and interface modules, etc.

In a twelfth aspect, a resource indication system is provided. The resource indication system includes a second terminal device, the first terminal device (or terminal chip) of the above aspect, and a network device (or a chip of the network device).

Among them, the technical effects brought by any one of the design methods of the second aspect to the twelfth aspect can be referred to the technical effects brought about by the different design methods in the first aspect, which will not be repeated here.

Description of the drawings

FIG. 1 is a schematic diagram of the V2X architecture provided by an embodiment of the application;

Figure 2 is a schematic diagram of two resource scheduling provided by an embodiment of the application;

FIG. 3 is a schematic diagram of the architecture of a communication system provided by an embodiment of the application;

FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of this application;

FIG. 5 is a schematic flowchart of a resource indication method provided by an embodiment of this application;

6 to 7 are schematic diagrams of the principle of resource indication provided by embodiments of this application;

FIG. 8 is a schematic structural diagram of an apparatus provided by an embodiment of the application.

detailed description

The terms “first” and “second” in the description of the application and the drawings are used to distinguish different objects or to distinguish different treatments of the same object, rather than describing a specific order of the objects. In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units that are not listed, or optionally also Including other steps or units inherent to these processes, methods, products or equipment. It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

First, introduce the technical terms involved in the embodiments of this application:

1. Resource element (resource element, RE): Taking Fig. 6 as an example, one subcarrier on frequency and one symbol on time domain are called an RE. RE can be used to carry information, for example, to carry data or signaling.

Two resource allocation methods for SL:

1. Mode 3 (mode 3): Refer to Figure 2 (a), this mode 3 is mainly used in V2X communication with network coverage. The base station allocates resources according to the buffer status report (BSR) reported by the terminal. The terminal performs V2X communication on the scheduled time-frequency resources according to the scheduling grant of the base station. Among them, the scheduling request and scheduling grant use the uplink and downlink between the base station and the terminal, and the direct communication between the terminals uses the SL.

2. Mode 4 (mode 4): See Figure 2(b), the terminal selects time-frequency resources from the pre-configured V2X resource pool, and performs V2X communication on the selected time-frequency resources.

3. Authorized transmission: In the wireless cellular network, before the terminal sends uplink data, it usually needs to establish a radio resource control (RRC) connection with the base station, enter the radio resource control connection (RRC_CONNECTED) state, and then the terminal sends to the base station Scheduling request (SR). If the base station allows the terminal to send uplink data, the base station sends an authorization instruction to the terminal. In this way, after receiving the authorization instruction, the terminal sends uplink data according to the authorization instruction. In this uplink data sending method, the terminal needs to be authorized by the base station to send the uplink data, so it is called authorized transmission. Authorized transmission has two disadvantages. One is that the delay is relatively large. The delay here refers to the delay when the terminal determines that there is uplink data to be sent to the terminal to send the uplink data out of the air interface; the other disadvantage is that when a certain period of time When there are a large number of terminals that need to send uplink data within a time, the uplink and downlink control channel resources used to send scheduling requests and authorization instructions consume a lot, resulting in a higher proportion of control overhead in the total network overhead (such as power, air interface resources, etc.), especially This shortcoming of authorized transmission is particularly obvious when the terminal's services are all small data packet services.

4. Grant free scheduling (GF): In this scheduling mode, when the terminal determines that there is uplink data to be sent, it does not have to go through the process of sending an uplink scheduling request and waiting for the authorization of the receiving base station, but directly sends the processed data. Upstream data. Compared with authorized transmission, authorization-free scheduling can shorten the transmission delay of the terminal.

The resource indication method provided in the embodiments of the present application is mainly applied in scenarios without network coverage. Refer to FIG. 3, which is a communication system involved in an embodiment of this application. The communication system includes a terminal device and a network device. Wherein, the above-mentioned terminal device may be connected to a network device through an air interface in order to receive network services. The above-mentioned network equipment is mainly used to implement wireless physical layer functions, resource scheduling and wireless resource management, wireless access control, and mobility management functions.

In addition, the above-mentioned terminal devices can also communicate directly through SL, such as V2X communication. It is easy to understand that the resource pool used for direct communication via SL can be a resource pool configured by a network device, such as a resource pool used when the air interface of a terminal device is connected to the network device normally, or it can be pre-configured in the terminal device. The resource pool, such as the resource pool that the equipment manufacturer configures in the terminal device in advance according to the agreement stipulation before the terminal device leaves the factory.

Exemplarily, the above-mentioned terminal device communicates directly through SL, which may be the aforementioned V2V, V2I, V2N, V2P communication, etc., or other forms of direct communication between terminal devices, such as pedestrian to pedestrian (pedestrian to pedestrian, P2P) communication.

In addition, in addition to SL, the direct communication between terminal devices can also adopt other forms or wireless connections of other names, such as future wireless communication systems, 6G systems, etc., which are not limited in this application.

Among them, the network equipment includes, but is not limited to: access points (APs) in the Wi-Fi system, such as home wireless routers, wireless relay nodes, wireless backhaul nodes, and transmission and reception points (TRP). Or transmission point, TP, eNB, radio network controller (RNC), node B (node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS) ), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (BBU), and can also be a 5G system, such as gNB in NR, or transmission point (TRP or TP), One or a group of antenna panels (including multiple antenna panels) of the base station in the 5G system, or, it can also be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU) and so on.

In some deployments, the gNB may include a centralized unit (CU) and a distributed unit (DU). The gNB may also include a radio unit (RU). The CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB. For example, CU implements the functions of radio resource control (radio resource control, RRC), packet data convergence protocol (PDCP) layer and service discovery application profile (SDAP) layer, and DU implements wireless link Channel control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layer functions. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also be used. It is considered to be sent by DU, or sent by DU+RU. It can be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited here.

Exemplarily, the foregoing terminal equipment may also be referred to as a station (station, STA), user equipment (user equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, and mobile station. Device, user terminal, wireless communication device, user agent or user device. The above-mentioned terminal equipment includes but is not limited to: mobile phone, tablet computer (Pad), computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial Wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in transportation safety, wireless terminals in smart cities, and terminals in the Internet of Vehicles (such as Automobile terminal), sensor equipment, such as monitoring terminal. The terminal device of the present application may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit that is built into a vehicle as one or more components or units. The vehicle passes through the built-in vehicle-mounted module, vehicle-mounted module, and vehicle-mounted component. , The on-board chip or on-board unit can implement the method of this application.

It should be understood that FIG. 3 is only a simplified schematic diagram of an example for ease of understanding, and only shows a terminal device and a network device (such as a base station). In the embodiment of the present application, the wireless communication system may also include other network equipment or other terminal equipment, which is not shown in FIG. 3.

Optionally, the terminal device and network device in the embodiments of the present application may be implemented by multiple devices. For example, the terminal device is one device and the network device is one device. The terminal device function and the network device function may also be integrated into one device. In the device, this embodiment of the application does not specifically limit this. It is understandable that the above functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (for example, a cloud platform).

For example, the terminal device and the network device in the embodiment of the present application may be implemented by the communication device in FIG. 4. FIG. 4 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the application. The communication device 200 includes at least one processor 201, a memory 203, and at least one transceiver 204.

The processor 201 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.

The transceiver 204 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. . The transceiver 204 may integrate the functions of sending and receiving information, and the transceiver may also refer to a transceiver or a receiver. The transmitter may include an antenna and a radio frequency circuit, and the receiver may include an antenna and a radio frequency circuit.

The memory 203 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this. The memory can exist independently and can be connected to the processor. The memory can also be integrated with the processor.

The memory 203 is used to store computer-executable instructions for executing the solution of the present application, and the processor 201 controls the execution. The processor 201 is configured to execute computer-executable instructions stored in the memory 203, so as to implement the resource indication method provided in the following embodiments of the present application.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.

In a specific implementation, as an embodiment, the communication device 200 may include multiple processors, such as the processor 201 and the processor 207 in FIG. 4. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).

In a specific implementation, as an embodiment, the communication device 200 may further include an output device 205 and an input device 206. The output device 205 communicates with the processor 201 and can display information in a variety of ways. For example, the output device 205 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait. The input device 206 communicates with the processor 201, and can receive user input in a variety of ways. For example, the input device 206 may be a mouse, a keyboard, a touch screen device, a sensor device, or the like. The components in Figure 4 are connected to each other.

The aforementioned communication device 200 may be a general-purpose device or a special-purpose device. The terminal equipment and network equipment are equipment with a similar structure as shown in FIG. 4. The embodiment of the present application does not limit the type of the communication device 200.

The following describes the resource indication method provided by the embodiment of the present application with reference to the communication system shown in FIG. 3. The following description mainly takes the network equipment as the base station as an example, and here is a unified statement, and will not be repeated in the following.

The embodiment of the present application provides a resource indication method. Referring to FIG. 5, the method includes the following steps:

S501: The first terminal device receives an aperiodic resource parameter.

It should be noted that step S501 is optional. In one case, the above aperiodic resource parameters are pre-configured. For example, when the terminal device leaves the factory, the manufacturer pre-configures it in the terminal device according to the relevant protocol standard. At this time, there is no step S501.

The aperiodic resource parameter may be received from a network device, or may also be received from other terminal devices. As a possible implementation manner, the network device or other terminal device sends first signaling to the first terminal device, and the first signaling carries aperiodic resource parameters. In this way, the first terminal device receives the first signaling from the network device or other terminal devices, and determines the second time-frequency resource to be used according to the aperiodic resource parameter indicated by the first signaling. Among them, the first signaling is an RRC message or downlink control information (downlink control information, DCI).

Wherein, the aperiodic resource parameter is used by the first terminal device to determine the second time-frequency resource used for sending aperiodic service data. In the embodiment of the present application, the second time-frequency resource of a certain terminal device refers to the time-frequency resource used by the terminal device to send aperiodic service data. Similarly, in the embodiments of the present application, the first time-frequency resource of a certain terminal device refers to the time-frequency resource used by the terminal device to send periodic service data, which is explained here in a unified manner, and will not be repeated hereafter.

The aperiodic resource parameters include the reference time-frequency resource size and the first time-frequency offset. The first time-frequency offset is the time-frequency resource used to send the aperiodic service data and the periodic service data in one cycle of the periodic service data. The offset of the time-frequency starting position between the time-frequency resources. The offset of the time-frequency start position includes the offset of the time domain start position and/or the offset of the frequency domain start position. That is, the time-frequency start position can be the offset of the time domain start position, the offset of the frequency domain start position, and the offset of the time domain start position and the offset of the frequency domain start position. . The first time-frequency offset is used to indicate the relative position relationship between the second time-frequency resource and the first time-frequency resource in one cycle. The reference time-frequency resource includes one or more time-frequency resource units. The time-frequency resource unit includes one or more REs. The reference time-frequency resource of the first terminal device is a set of time-frequency resources pre-configured or configured by the base station that can be used by the first terminal device to send aperiodic service data. The reference time-frequency resource of the first terminal device may be different from the resource used by the first terminal device to actually send aperiodic service data. The first terminal device can select the resource for sending aperiodic service data from the reference time-frequency resource. When the reference time-frequency resource is not enough to support the first terminal device to send aperiodic service data, the first terminal device can also seize other resources Used to send non-periodic business data. Among them, the size of the reference time-frequency resource can be determined by the base station according to the service statistics of the terminal equipment, the system bandwidth, the number of user equipment and other parameters. For example, if the system bandwidth is larger, the base station can allocate more reference time-frequency resources for each terminal device to improve the service success rate of the terminal device. If the number of user equipments in the network is large, the base station can configure fewer reference time-frequency resources for each terminal equipment to meet the communication requirements of more terminal equipments. If the base station finds, according to the service statistics of a certain terminal device, that the amount of data sent and received by the terminal device each time is relatively large, it can configure more reference time-frequency resources for the terminal device.

Optionally, when there is an offset in the time domain between the time-frequency start position of the first time-frequency resource and the time-frequency start position of the second time-frequency resource in a cycle, and there is no offset in the frequency domain, it is not The period resource parameter may only include the time domain offset between the two time-frequency start positions, and not the frequency domain offset between the two time-frequency start positions. In this way, the non-periodic resource parameter can display and indicate the time domain offset between the two time-frequency start positions, and implicitly indicate the frequency domain offset between the two time-frequency start positions, so that the terminal device can learn a The positional relationship between the second time-frequency resource and the first time-frequency resource in the period. Moreover, since the aperiodic parameter may not include the frequency domain offset between the two time-frequency start positions, when the aperiodic resource parameter is pre-stored in the terminal device, the consumption of storage resources of the terminal device can be reduced. If the aperiodic resource parameters are configured to the terminal device through the base station, the signaling overhead of the base station can be reduced.

Similarly, when the time-frequency start position of the first time-frequency resource and the time-frequency start position of the second time-frequency resource in a cycle do not have an offset in the time domain, and there is an offset in the frequency domain, aperiodic The resource parameter may only include the frequency domain offset between the two time-frequency start positions, but not the time domain offset between the two time-frequency start positions.

Optionally, the reference time-frequency resource includes one time-frequency resource unit. Taking Figure 6 as an example, the non-periodic resource parameters of the terminal equipment are as follows: {reference time-frequency resource size: 3 REs; first time-frequency offset: the time-frequency start position of the first time-frequency resource and the second The time-frequency start position of the time-frequency resource differs by 3 symbols in the time domain, and there is no offset in the frequency domain}. This means that the terminal 1 can send aperiodic service data on the second time-frequency resource configured in one cycle as shown in FIG. 6.

Optionally, the reference time-frequency resource includes multiple (ie, two or more) time-frequency resource units. Aperiodic resource parameters also include the time interval between two adjacent time-frequency resource units, the size of the time-frequency resource unit, and the number of time-frequency resource units. Taking Figure 7 as an example, the non-periodic resource parameters of terminal 1 are as follows: {reference time-frequency resource size: 6 REs; first time-frequency offset: within a period, compared to the initial time-frequency position of the first time-frequency resource , The time-frequency initial position of the second time-frequency resource is delayed by 1 symbol in the time domain; the size of the time-frequency resource unit: 2 REs; the time interval between two adjacent time-frequency resource units: 4 symbols}. According to the resource configuration method shown in FIG. 7, when the terminal 1 has aperiodic service data to be sent, it can send the aperiodic service data on 6 REs configured in multiple periods. Of course, Figure 7 is an example where the second time-frequency resource is configured in adjacent periods of the periodic service data. In practical applications, the second time-frequency resource can also be configured at intervals, for example, the first period configuration of the periodic service data. For the second time-frequency resource, the second time-frequency resource is not configured in the second cycle, and the second time-frequency resource is configured in the third cycle. Specifically, with reference to FIG. 7, if the time interval between adjacent time-frequency resource units is configured to be 8 symbols, it means that the second time-frequency resource is not configured in the second period.

Optionally, the aperiodic resource parameter may also include the time-frequency positions of multiple REs or REGs in the time-frequency resource unit.

As a possible implementation manner, the foregoing aperiodic resource parameters can be determined according to one or more factors among the service statistics of the terminal equipment, the system bandwidth, and the number of user equipments in the network. The factors referenced by each aperiodic resource parameter can be the same or different. For example, each of the aforementioned aperiodic resource parameters is determined according to the service statistics of the terminal equipment and the system bandwidth. In actual implementation, some aperiodic resource parameters (such as reference time-frequency resource size, first time-frequency offset) are determined according to the service statistics of the terminal equipment, and some aperiodic resource parameters are determined according to the system bandwidth and user equipment. The number is determined.

It should be noted that the network device can configure the same aperiodic resource parameters for multiple terminal devices it serves, or the network device can configure different aperiodic resource parameters for different terminal devices.

It should be noted that step S501 may be implemented by the transceiver of the above-mentioned communication device or the processor controlling the transceiver.

S502: The first terminal device determines a first time-frequency resource used to send periodic service data.

As a possible implementation manner, the first terminal device detects one or more resource indication information of one or more second terminal devices, and based on the one or more resource indication information and/or aperiodic resource parameters, determines the first The first time-frequency resource of a terminal device. Wherein, the second terminal device is a terminal device other than the first terminal device. Specifically, the first terminal device determines the first time-frequency resource to be used based on the monitored one or more resource indication information. Or, the first terminal device reserves the used first time-frequency resource based on the one or more resource indication information that it listens to and the aperiodic resource parameter. For a detailed description of the two methods for determining the first time-frequency resource, see the following.

For a certain second terminal device, the second terminal device sends periodic service data and sends an SCI. The SCI includes resource indication information of the second terminal device, and the resource indication information is used to indicate the second terminal device's The first time-frequency resource, and/or the second time-frequency resource of the second terminal device. Specifically, the resource indication information is used to indicate the first time-frequency resource of the second terminal device, or the resource indication information is used to indicate the first time-frequency resource and the second time-frequency resource of the second terminal device. The detailed introduction of these two resource indications can be found below. The first terminal device senses resource indication information from other terminal devices (ie multiple second terminal devices), and based on the one or more resource indication information and/or non-periodic resource parameters The first time-frequency resource and the second time-frequency resource occupied by other terminal devices are selected from the time-frequency resources not occupied by other terminal devices to facilitate the transmission of periodic service data.

It has been pointed out above that different terminal devices may have different or the same aperiodic resource parameters, and in these two cases, the first terminal device determines the first time-frequency resource in different ways. The following describes in detail how the first terminal device determines the first time-frequency resource under the two situations of the same or different non-periodic resource parameters of the terminal device.

Case 1. The aperiodic resource parameters of the terminal equipment are all the same. The aperiodic resource parameters include the reference time-frequency resource size and the first time-frequency offset. Optionally, the aperiodic resource parameters further include the size of the reference time-frequency resource, the first time-frequency offset, and the reference time-frequency resource.

It has been pointed out above that the non-periodic resource parameter of the terminal device is used to indicate the relationship between the second time-frequency resource and the first time-frequency resource in a cycle, so that the terminal device can calculate the used time-frequency resource based on the first time-frequency resource already known. The second time-frequency resource. In this way, when the aperiodic resource parameters of different terminal devices are the same, it indicates that the second time-frequency resources of different terminal devices have a similar relationship with the first time-frequency resources. Specifically, taking the example of terminal device 1 and terminal device 3 having the same aperiodic resource parameters, the aperiodic resource parameters of these two terminal devices are as follows: {reference time-frequency resource size: 6 REs; first time-frequency offset : In a period, compared with the initial time-frequency position of the first time-frequency resource, the initial time-frequency position of the second time-frequency resource is delayed by 1 symbol in the time domain; the size of the time-frequency resource unit: 2 REs; phase The time interval between two adjacent time-frequency resource units: 4 symbols}, the resource configuration mode corresponding to the non-periodic resource parameter can be referred to as shown in Figure 7. Both terminal device 1 and terminal device 3 are configured with the same number of available The resource for transmitting aperiodic service data (ie, reference time-frequency resource), that is, 6 REs; the reference time-frequency resource includes 3 time-frequency resource units; each time-frequency resource unit includes 2 REs; in one cycle, The relative positional relationship between the second time-frequency resource and the first time-frequency resource is the same; the time interval between two adjacent time-frequency resource units is 4 symbols.

Optionally, the resource indication information of the second terminal device may only indicate the first time-frequency resource of the second terminal device. At this time, since the aperiodic resource parameters of the first terminal device and the second terminal device are the same, the first terminal device can use the first time-frequency resource of the second terminal device and its own aperiodic resource parameter (equivalent to the second terminal device Aperiodic resource parameters of the device), for example, the first time-frequency offset between the first time-frequency resource and the second time-frequency resource, the size of the time-frequency resource unit, etc., to calculate the second time-frequency resource of the second terminal device . After that, the first terminal device excludes the time-frequency resources that have been occupied by other second terminal devices, and the resources in the resource pool except the first time-frequency resources and second time-frequency resources of other second terminal devices, that is, the first The first time-frequency resource of the terminal device includes the resource indicated by one or more resource indication information in the resource pool (that is, the first time-frequency resource of one or more second terminal devices) as well as aperiodic resource parameters and one or more resources The resources other than the resources jointly indicated by the indication information (that is, the second time-frequency resources of one or more second terminal devices). For example, referring to Figure 6, the first terminal device excludes the first time-frequency resource and the second time-frequency resource occupied by terminal 1 and terminal 2, and selects the first time-frequency resource from the remaining resources, and the selected first time-frequency resource is black Filled RE. In this way, the probability of resource collisions with other terminal devices can be reduced. In addition, the second terminal device does not need to indicate its own second time-frequency resource in the resource indication information, which reduces the signaling overhead between the terminal devices.

Optionally, the resource indication information of the second terminal device may also indicate both the first time-frequency resource of the second terminal device and the second time-frequency resource of the second terminal device. The first time-frequency resource of the first terminal device includes resources other than the resources indicated by the one or more resource indication information in the resource pool. In this case, the first terminal device does not need to calculate the second time-frequency resource of the second terminal device by itself, which can reduce the calculation complexity of the first terminal device, and further, can reduce the power consumption of the first terminal device.

Case 2. The aperiodic resource parameters of different terminal devices may be different.

In this case, the resource indication information of the second terminal device not only indicates the first time-frequency resource of the second terminal device, but also indicates the second time-frequency resource of the second terminal device. Similarly, the first terminal device can directly learn the second time-frequency resource and the first time-frequency resource of the second terminal device from the resource indication information, and then exclude these resources, except for the first time-frequency resource and the first time-frequency resource of the second terminal device. The first time-frequency resource used is selected from resources other than the second time-frequency resource.

As a possible implementation manner, the second time-frequency resource used by the second terminal device includes one or more time-frequency resource units, and the resource indication information of the second terminal device includes one or more of the following parameters: One or more parameters are used to indicate the second time-frequency resource of the second terminal device: (1) The difference between the second time-frequency resource used by the second terminal device and the first time-frequency resource used by the second terminal device The first time-frequency offset, (2) the size of the time-frequency resource unit, and (3) the time-frequency position offset between multiple REs in the time-frequency resource unit.

As another possible implementation manner, the second time-frequency resource used by the second terminal device includes two or more time-frequency resource units, and the resource indication information of the second terminal device includes one or more of the following parameters , The one or more parameters are used to indicate the second time-frequency resource of the second terminal device: (1) the second time-frequency resource used by the second terminal device and the first time-frequency resource used by the second terminal device (2) the size of the time-frequency resource unit, (3) the time-frequency position offset between multiple REs in the time-frequency resource unit, (4) the second terminal device uses the first time-frequency offset Second, the number of time-frequency resource units included in the time-frequency resource, and (5) the time interval between two adjacent time-frequency resource units in the second time-frequency resource used by the second terminal device.

It should be noted that some parameters of different terminal devices can be the same. In this way, the second terminal device only needs to indicate different parameters from other terminals in the resource indication information. For example, if the parameters (1)-(4) of different terminal devices are the same, the second terminal device only needs to indicate the parameter (5) in the resource indication information. In this way, the first terminal device can determine the second time-frequency resource of the second terminal device according to its own (1)-(4) parameters and the second terminal device's (5) parameters. In addition, the signaling overhead for the terminal device to send resource indication information can be reduced.

Wherein, the above-mentioned first time-frequency offset is a period of the periodic service data of the second terminal device, the time-frequency start position of the second time-frequency resource used by the second terminal device is relative to the first time-frequency offset of the second terminal device. The offset of the time-frequency start position of the time-frequency resource, where the first time-frequency offset is used to indicate the second time-frequency resource of the second terminal device.

Similar to the above-mentioned first terminal device having a reference time-frequency resource, the second terminal device is also configured with a reference time-frequency resource, and the reference time-frequency resource is pre-configured or configured by the base station to the second terminal device. When the second terminal device has aperiodic service data to send, the second terminal device may send the aperiodic service data on the entire reference time-frequency resource, or may send the aperiodic service data on part of the reference time-frequency resource, Or, when the reference time-frequency resource is insufficient to send the aperiodic service data, the second terminal device may also send the aperiodic service data on the reference time-frequency resource and other resources. The above-mentioned second time-frequency resource used by the second terminal device refers to the time-frequency resource occupied by the second terminal device actually sending aperiodic service data, rather than a reference time-frequency resource.

As a possible implementation manner, the second terminal device sends periodic service data, and in the resource indication information indicating the first time-frequency resource used to send the periodic service data, indicates that it refers to information related to the time-frequency resource, such as , The reference time-frequency resource size, the first time-frequency offset, the number of time-frequency resource units included in the reference time-frequency resource, the size of the time-frequency resource unit, and the time interval between two adjacent time-frequency resource units One or more messages.

As another possible implementation manner, if there is periodic service data in the period from the arrival of the aperiodic service data to the sending of the aperiodic service data, the second terminal device indicates the first time-frequency resource of the periodic service data. The resource indication information indicates relevant information about the time-frequency resources actually used. The second time-frequency resource actually used by the second terminal device is related to the size of the aperiodic service data. For example, taking terminal 1 in Figure 7 as an example, if aperiodic service data arrives at time t0, and periodic service data is sent at time t1, terminal 1 sends resource indication information to indicate the first time-frequency resource of the periodic service data, and The resource indication information indicates the second time-frequency resource for actually sending the aperiodic service data. For example, the aperiodic service data is relatively small, and only one RE is needed when the aperiodic service data is actually sent (and the configuration reference The size of the time-frequency resource is 3 REs), then the actually used second time-frequency resource, that is, the one RE, is indicated in the resource indication information. In this way, the second terminal device can indicate the time-frequency resources occupied by its actual aperiodic service data, so that when the first terminal device excludes resources, it can accurately exclude the time-frequency resources of the actual aperiodic service data of the second terminal device and reduce the first The probability of resource collision between the terminal device and the second terminal device.

Optionally, in the above case 1 and case 2, the resource indication information of the second terminal device is also used to indicate the priority between resource units or resource element groups (resource element groups, REG) included in the time-frequency resource unit . Referring to FIG. 6, the time-frequency resource unit of the terminal 1 includes three REs, where the two REs marked with a number 1 are one REG, the priority of the REG is 1, and the priority of the RE marked with the number 2 is 2. Priority 2 is greater than priority 1. The priority between RE or REG is used for the first terminal device to preempt time-frequency resources. In a possible implementation manner, when the second time-frequency resource of the first terminal device is not enough to support sending aperiodic service data, the first terminal device can preempt the second terminal device’s second time-frequency resource to satisfy the priority Resources of the second preset condition. The second preset condition may refer to a resource with the lowest priority among the second time-frequency resources of the second terminal device, may also be a resource with a priority less than or equal to a certain threshold, or other similar conditions.

It should be noted that step S502 may be implemented by the processor of the aforementioned communication device.

S503: The first terminal device determines a second time-frequency resource used to send aperiodic service data.

Specifically, the first terminal device determines the second time-frequency resource used to send the aperiodic service data according to the aperiodic resource parameter. Among them, the non-periodic resource parameters include the reference time-frequency resource size.

If the size of the idle resource is greater than the size of the reference time-frequency resource, the first terminal device determines the second time-frequency resource from the idle resource according to the aperiodic resource parameter. If the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the first terminal device determines the second time according to the aperiodic resource parameter from the idle resource and the time-frequency resources of one or more second terminal devices for sending aperiodic service data. Frequency resources.

Wherein, if one or more resource indication information indicates the first time-frequency resource and second time-frequency resource of one or more second terminal devices, the idle resource refers to the one or more resource indication information indications in the resource pool The time-frequency resources (that is, the first time-frequency resources and the second time-frequency resources of the first or more second terminal devices) and resources other than the first time-frequency resources.

If the one or more resource indication information only indicates the first time-frequency resource of one or more second terminal devices, the idle resource refers to the time-frequency resource (that is, the first time-frequency resource indicated by the one or more resource indication information) in the resource pool. The first time-frequency resource and the second time-frequency resource of one or more second terminal devices), which are jointly determined by aperiodic resource parameters and one or more resource indication information, are used for one or more second terminal devices to send non-periodic resources. Periodic service data resources (that is, the second time-frequency resources of one or more second terminal devices) and resources other than the first time-frequency resources.

Taking Figure 6 as an example, blank REs are idle resources. For the first terminal device, its reference time-frequency resource is 8 REs, that is, the first terminal device is configured with a total of 8 REs that can be used to send aperiodic service data. The size of the RE) is greater than or equal to 8 REs, indicating that the idle resources are sufficient to support the first terminal device to send aperiodic service data, and the first terminal device selects the second time-frequency resource to be used from the idle resources (i.e., blank REs), That is, part of the resources that occupy idle resources are sent aperiodic service data. In other examples, the size of the idle resources may be less than 8 REs, indicating that the idle resources may not be enough to support the first terminal device to send aperiodic service data, so the first terminal device occupies idle resources for sending aperiodic service data, It also seizes the second time-frequency resource of the second terminal device. In this way, the first terminal device can send aperiodic service data on the second time-frequency resources and idle resources of the second terminal device that it has preempted, and can provide the first terminal device with sufficient time-frequency resources for sending aperiodic service data , To reduce the probability of failure to send aperiodic service data.

As a possible implementation, the first terminal device preempts the channel busy ratio (CBR) in the second time-frequency resource of the second terminal device to the second time-frequency resource of the second terminal device that satisfies the first preset condition, or , The second time-frequency resource of the first terminal device includes the second time-frequency resource whose priority of the second terminal device satisfies the second preset condition. The first preset condition may be a preset number of resources with the lowest CBR among the second time-frequency resources of the second terminal device. In other words, the CBR of the second time-frequency resource of the first terminal device is less than the idle resources divided by the second time-frequency resource. CBR of resources other than the frequency resource. The first preset condition may also be a resource whose CBR is less than or equal to the first threshold. Or, the first preset condition may also be other conditions. The detailed introduction of the second preset condition can be referred to above, and will not be repeated here.

Optionally, the second time-frequency resource of the first terminal device includes at least one (that is, one or more) time-frequency resource unit. Optionally, the aperiodic resource parameter of the first terminal device further includes the first time-frequency offset. After the first terminal device reserves the first time-frequency resource, when the remaining idle resources are sufficient to support the first terminal device to send aperiodic service data, the first terminal device can determine the second time-frequency resource and the second time-frequency offset according to the first time-frequency offset. The relationship between the time-frequency positions of the first time-frequency resources and the time-frequency positions of the second time-frequency resources are further determined. Of course, there are also idle resources sufficient to support the first terminal device to send aperiodic service data, but there is no time-frequency resource that satisfies the first time-frequency offset from the first time-frequency resource on the idle resource. In this case, in order to ensure that the first terminal device has sufficient time-frequency resources to use, the first terminal device can randomly select the second time-frequency resource to be used from the idle resources, and the selected second time-frequency resource does not have to be the same as the first time-frequency resource. The time-frequency resources have a first time-frequency offset relationship. Alternatively, the first terminal device selects the second time-frequency resource whose time-frequency offset from the first time-frequency resource is closest to the first time-frequency offset from the idle resources.

After the first terminal device reserves the first time-frequency resource, when the remaining idle resources are not enough to support it to send aperiodic service data, as a possible implementation, the first terminal device occupies all the idle resources and preempts the first terminal device. Two second time-frequency resources whose time-frequency offset between the second time-frequency resources of the terminal device and the first time-frequency resource is closest to a preset number of the first time-frequency offset. Or, the first terminal device preempts the second time-frequency resources of the preset number of which the CBR meets the foregoing first preset condition. Or, preempt the second time-frequency resource whose priority meets the foregoing second preset condition. Or, in combination with the foregoing preemption methods, for example, preempting part of the second time-frequency resources with a lower CBR and preempting part of the second time-frequency resources with a lower priority. Or, other preemption methods are adopted to preempt the second time-frequency resource of the second terminal device.

Optionally, the second time-frequency resource of the first terminal device includes at least two (two or more) time-frequency resource units. Further, the aperiodic resource parameter of the first terminal device further includes one or more of the first time-frequency offset, the time interval between two adjacent time-frequency resource units, and the size of the time-frequency resource unit.

It should be noted that step S503 may be implemented by the processor of the aforementioned communication device.

S504: The first terminal device sends resource indication information.

The resource indication information of the first terminal device is used to indicate the first time-frequency resource of the first terminal device and/or the second time-frequency resource of the first terminal device. That is, the resource indication information of the first terminal may only indicate the first time-frequency resource of the first terminal device, or may indicate both the first time-frequency resource of the first terminal device and the second time-frequency resource of the first terminal device. Frequency resources. In a possible implementation manner in which the resource indication information indicates the second time-frequency resource, the resource indication information includes the size of the reference time-frequency resource and the first time-frequency offset. Optionally, the resource indication information further includes the number of time-frequency resource units included in the reference time-frequency resource of the first terminal device, the time interval between two adjacent time-frequency resource units, and the size of the time-frequency resource unit. Or, in another possible implementation manner in which the resource usage indication information indicates the second time-frequency resource, the resource indication information includes the size of the second time-frequency resource actually used by the first terminal device and the first time-frequency offset. Optionally, the resource indication information further includes the number of time-frequency resource units included in the actual second time-frequency resource of the first terminal device, the time interval between two adjacent time-frequency resource units, and the size of the time-frequency resource unit . The distinction and connection between the reference time-frequency resource configured by the terminal device and the second time-frequency resource actually used by the terminal device have been explained in detail above, and will not be repeated here.

It should be noted that step S504 may be implemented by the transceiver of the aforementioned communication device.

S505: The first terminal device sends periodic service data on the first time-frequency resource, and sends aperiodic service data on the second time-frequency resource.

It should be noted that step S505 may be implemented by the transceiver of the aforementioned communication device.

In the resource indication method provided by the embodiment of the present application, after determining the first time-frequency resource, the first terminal device can determine the second time-frequency resource, where the second time-frequency resource includes at least one time-frequency resource unit. In this way, the first terminal device can send aperiodic service data on the at least one time-frequency resource unit to meet the resource requirements of the aperiodic service terminal. In addition, the first terminal device sends resource indication information, where the resource indication information is used to indicate the first time-frequency resource and/or the first time-frequency offset. In this way, other terminal devices can learn the first time-frequency resource and the second time-frequency resource of the first terminal device after listening to the resource indication information from the first terminal device, so that other terminal devices can exclude other terminal devices from being used by the first terminal. For the time-frequency resources occupied by the device, resources that can be used to send periodic service data and/or aperiodic service data are selected from the unoccupied time-frequency resources. That is, the probability of resource collisions between terminal devices can be reduced.

The foregoing only uses the first terminal device and the network device as examples to illustrate the resource indication method of the embodiment of the present application. The methods and functions implemented by the network device in the foregoing method embodiments may also be implemented by a chip that can be used in a network device, or other devices with the above The combined devices and components of the network device functions are realized, and the methods and functions realized by the terminal device can also be realized by a chip that can be used in the terminal, or other combined devices, components, etc. that have the above-mentioned terminal device functions.

The embodiments of the present application may divide the above-mentioned communication device (the communication device may be the above-mentioned terminal device or network device) into functional modules or functional units according to the above-mentioned method examples. For example, each functional module or functional unit may be divided corresponding to each function, or Integrate two or more functions into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software functional modules or functional units. Among them, the division of modules or units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

FIG. 8 shows a schematic diagram of a possible structure of the apparatus for resource indication involved in the foregoing embodiment. The device may be the first terminal device or the chip in the first terminal device, or the network device, or the chip in the network device. As shown in FIG. 8, the device 1000 includes: a storage unit 1001, a processing unit 1002, and a communication unit 1003.

Among them, the storage unit 1001 can be used to store programs or instructions, data, etc., for example. The processing unit 1002 is configured to control and manage the actions of the device 1000 to execute the steps of the technical solution in the embodiment of the present application. The communication unit 1003 is used to support the apparatus 1000 to communicate with other devices in the communication system shown in FIG. 3. The communication unit 1003 may have a function of sending and receiving information. The communication unit 1003 may also only have the function of sending information. In this case, the communication unit 1003 is also called a sending unit. The communication unit 1003 may also only have the function of receiving information. In this case, the communication unit 1003 is also called a receiving unit.

If the apparatus 1000 is used to implement the above-mentioned method or function of the first terminal device, the processing unit 1002 is used to support the apparatus 1000 to execute S502, S503 shown in FIG. 5, and/or other steps in the embodiment of the present application, the communication unit 1003, The supporting apparatus 1000 executes S504 and S505 shown in FIG. 5, and/or other steps in the embodiment of the present application.

If the apparatus 1000 is used to implement the method or function of the aforementioned network device, the processing unit 1002 is used to support the apparatus 1000 to determine aperiodic resource parameters, and/or other steps in the embodiment of the present application, the communication unit 1003 is used to support the apparatus 1000 Send aperiodic resource parameters to the terminal device, and/or other steps in the embodiment of the present application.

It should be noted that the storage unit 1001 may be implemented as the memory 203 of the terminal in FIG. 4. The processing unit 1002 may be implemented as the processor 201 and/or the processor 207 in FIG. 4, and the communication unit 1003 may be implemented as the transceiver 204 in FIG.

When the device is a component with the above-mentioned terminal equipment function, the receiving unit may be a radio frequency unit, the processing unit may be a processor, and the sending unit may be a radio frequency unit.

When the device is a chip system, the receiving unit may be an input interface of the chip system, the processing unit may be a processor of the chip system, and the sending unit may be an output interface of the chip system.

Among them, all relevant content of the steps involved in the foregoing method embodiment can be cited in the functional description of the corresponding functional module in the apparatus shown in FIG. 8, which is not repeated here.

Since the network equipment, the components in the network equipment, the terminal equipment, and the components in the terminal equipment provided in the embodiments of the present application can perform the above-mentioned resource configuration method, the technical effects that can be obtained can refer to the above-mentioned method embodiments. Go into details again.

The embodiments of the present application also provide a computer-readable storage medium, and the computer-readable storage medium stores instructions. When the instructions are executed, each of the terminal devices or network devices executed in the method flow shown in the foregoing method embodiments is executed. step.

The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or a combination of any of the above. More specific examples of computer-readable storage media (non-exhaustive list) include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (Read-Only Memory, ROM), Erasable Programmable Read-Only Memory (EPROM), registers, hard disks, optical fibers, portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM) ), an optical storage device, a magnetic storage device, or any suitable combination of the above, or any other form of computer-readable storage medium known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in an Application Specific Integrated Circuit (ASIC). In the embodiments of the present application, the computer-readable storage medium may be any tangible medium that contains or stores a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.

Optionally, the embodiment of the present application further provides a chip system, which is applied to a terminal device, and the chip system includes a processor for supporting the terminal device to implement the foregoing resource indication method. In one possible design, the chip system also includes memory. This memory is used to store the necessary program instructions and data of the terminal. Of course, the memory may not be in the chip system. The chip system may be composed of chips, or may include chips and other discrete devices, which is not specifically limited in the embodiment of the present application.

The embodiment of the present application also provides another chip system, which is applied to a network device, and the chip system includes a processor for supporting the network device to implement the foregoing resource indication method. In one possible design, the chip system also includes memory. The memory is used to store the necessary program instructions and data of the network device. Of course, the memory may not be in the chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A resource indication method, characterized in that it comprises:

The first terminal device determines the first time-frequency resource used to send periodic service data;

Determining, by the first terminal device, a second time-frequency resource for sending aperiodic service data, and the second time-frequency resource includes at least one time-frequency resource unit;

The first terminal device sends resource indication information, where the resource indication information is used to indicate the first time-frequency resource and/or a first time-frequency offset; the first time-frequency offset is the periodic service The offset of the time-frequency starting position between the time-frequency resource used to send aperiodic service data and the time-frequency resource used to send periodic service data in a period of data;

The first terminal device sends the periodic service data on the first time-frequency resource, and sends the aperiodic service data on the second time-frequency resource.
The resource indication method according to claim 1, wherein the second time-frequency resource includes at least two time-frequency resource units;

The resource indication information is also used to indicate the time interval between two adjacent time-frequency resource units in the second time-frequency resource, and the size of the time-frequency resource unit.
The resource indication method according to claim 1 or 2, wherein the first terminal device determining the second time-frequency resource for sending aperiodic service data comprises:

The first terminal device determines a second time-frequency resource for sending aperiodic service data according to an aperiodic resource parameter, where the aperiodic resource parameter includes a reference time-frequency resource size and the first time-frequency offset.
The resource indication method according to claim 3, wherein the non-periodic resource parameter is pre-configured; or, the method further comprises:

The first terminal device receives first signaling from a network device, the first signaling carries the aperiodic resource parameter, and the first signaling is a radio resource control RRC message or downlink control information DCI.
The resource indication method according to any one of claims 1 to 4, wherein the method further comprises:

Detecting, by the first terminal device, one or more resource indication information of one or more second terminal devices;

The first terminal device determining the first time-frequency resource for sending periodic service data includes:

The first terminal device determines the first time-frequency resource of the first terminal device based on aperiodic resource parameters and/or one or more resource indication information of the one or more second terminal devices, where The first time-frequency resource includes resources in the resource pool other than the time-frequency resources indicated by the one or more resource indication information, or the first time-frequency resource of the first terminal device includes all resources in the resource pool. The resource indicated by the one or more resource indication information and the resources determined by the aperiodic resource parameter and the one or more resource indication information for one or more second terminal devices to send aperiodic service data Resource, the aperiodic resource parameter includes a reference time-frequency resource size and the first time-frequency offset.
The resource indication method according to any one of claims 1 to 5, wherein the resource indication information is further used to indicate the priority between resource units or resource unit groups included in the time-frequency resource unit .
The resource indication method according to any one of claims 1 to 6, wherein the method further comprises:

Detecting, by the first terminal device, one or more resource indication information of one or more second terminal devices;

The determining, by the first terminal device, of the second time-frequency resource used for sending aperiodic service data includes:

If the size of the idle resource is greater than the size of the reference time-frequency resource, the first terminal device determines the second time-frequency resource from the idle resource according to the aperiodic resource parameter;

If the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the first terminal device uses the idle resource and the one or more second terminal devices to send aperiodic resources according to the aperiodic resource parameter. The time-frequency resource of the service data determines the second time-frequency resource;

Wherein, the idle resource is a resource other than the time-frequency resource indicated by the one or more resource indication information and the first time-frequency resource in the resource pool, or the idle resource is a resource other than all resources in the resource pool. The time-frequency resource indicated by the one or more resource indication information, and the resource determined by the aperiodic resource parameter and the one or more resource indication information for one or more second terminal devices to send aperiodic service data , And resources other than the first time-frequency resource.
The resource indication method according to claim 7, wherein the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the channel busy ratio CBR of the second time-frequency resource is less than a first threshold, or the The CBR of the second time-frequency resource is smaller than the CBR of resources other than the second time-frequency resource in the idle resources.
A resource indication method, characterized in that it comprises:

The network device determines an aperiodic resource parameter, where the aperiodic resource parameter includes a reference time-frequency resource size and a first time-frequency offset, and the first time-frequency offset is used in one cycle of the periodic service data of the first terminal device. The offset of the time-frequency starting position between the time-frequency resource for sending aperiodic service data and the time-frequency resource for sending periodic service data;

The network device sends the aperiodic resource parameter to the first terminal device.
The resource indication method according to claim 9, wherein the aperiodic resource parameter further comprises the time interval between two adjacent time-frequency resource units in the second time-frequency resource of the first terminal device, and the time-frequency resource The size of the resource unit, and the second time-frequency resource of the first terminal device is a time-frequency resource used to send aperiodic service data.
The resource indication method according to claim 9 or 10, wherein the sending of the aperiodic resource parameter by the network device to the first terminal device comprises:

The network device sends first signaling to the first terminal device, the first signaling carries the aperiodic resource parameter, and the first signaling includes a radio resource control RRC message or downlink control information DCI.
A device for resource indication, characterized in that it comprises:

A processing unit, configured to determine the first time-frequency resource used to send periodic service data;

The processing unit is further configured to determine a second time-frequency resource used to send aperiodic service data, where the second time-frequency resource includes at least one time-frequency resource unit;

The transceiver unit is configured to send resource indication information, where the resource indication information is used to indicate the first time-frequency resource and/or a first time-frequency offset; the first time-frequency offset is the periodic service data The offset of the time-frequency starting position between the time-frequency resource used to send aperiodic service data and the time-frequency resource used to send periodic service data in a period of

The transceiver unit is further configured to send the periodic service data on the first time-frequency resource, and send the aperiodic service data on the second time-frequency resource.
The apparatus according to claim 12, wherein the second time-frequency resource includes at least two time-frequency resource units;

The resource indication information is also used to indicate the time interval between two adjacent time-frequency resource units in the second time-frequency resource, and the size of the time-frequency resource unit.
The apparatus according to claim 12 or 13, wherein the processing unit is configured to determine the second time-frequency resource used for sending aperiodic service data, including: determining the second time-frequency resource for sending aperiodic service data according to the aperiodic resource parameter. A second time-frequency resource of aperiodic service data, where the aperiodic resource parameter includes a reference time-frequency resource size and the first time-frequency offset.
The apparatus according to claim 14, wherein the non-periodic resource parameter is pre-configured; or, the transceiving unit is further configured to receive first signaling from a network device, and the first signaling carries For the aperiodic resource parameter, the first signaling is a radio resource control RRC message or downlink control information DCI.
The apparatus according to any one of claims 12 to 15, wherein the processing unit is further configured to detect one or more resource indication information of one or more second terminal devices;

The processing unit is configured to determine a first time-frequency resource for sending periodic service data, including: one or more resource indications based on aperiodic resource parameters and/or the one or more second terminal devices Information to determine the first time-frequency resource of the first terminal device, where the first time-frequency resource includes resources in the resource pool other than the time-frequency resources indicated by the one or more resource indication information, or The first time-frequency resource of the first terminal device includes resources in the resource pool except those indicated by the one or more resource indication information, and usage determined by the aperiodic resource parameter and the one or more resource indication information. A resource other than a resource for sending aperiodic service data to one or more second terminal devices, and the aperiodic resource parameter includes a reference time-frequency resource size and the first time-frequency offset.
The apparatus according to any one of claims 12 to 16, wherein the resource indication information is further used to indicate the priority between resource units or resource unit groups included in the time-frequency resource unit.
The apparatus according to any one of claims 12 to 17, wherein the processing unit is further configured to detect one or more resource indication information of one or more second terminal devices;

The processing unit, configured to determine a second time-frequency resource used to send aperiodic service data, includes:

If the size of the idle resource is greater than the size of the reference time-frequency resource, the first terminal device determines the second time-frequency resource from the idle resource according to the aperiodic resource parameter;

If the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the first terminal device uses the idle resource and the one or more second terminal devices to send aperiodic resources according to the aperiodic resource parameter. The time-frequency resource of the service data determines the second time-frequency resource;

Wherein, the idle resource is a resource other than the time-frequency resource indicated by the one or more resource indication information and the first time-frequency resource in the resource pool, or the idle resource is a resource other than all resources in the resource pool. The time-frequency resource indicated by the one or more resource indication information, and the resource determined by the aperiodic resource parameter and the one or more resource indication information for one or more second terminal devices to send aperiodic service data , And resources other than the first time-frequency resource.
The apparatus according to claim 18, wherein the size of the idle resource is less than or equal to the size of the reference time-frequency resource, the channel busy ratio CBR of the second time-frequency resource is less than a first threshold, or the second The CBR of the time-frequency resource is smaller than the CBR of resources other than the second time-frequency resource in the idle resources.
A device for resource indication, characterized in that it comprises:

The processing unit is configured to determine aperiodic resource parameters, where the aperiodic resource parameters include a reference time-frequency resource size and a first time-frequency offset, and the first time-frequency offset is one of the periodic service data of the first terminal device The offset of the time-frequency starting position between the time-frequency resource used for sending aperiodic service data and the time-frequency resource used for sending periodic service data in the period;

The transceiver unit is configured to send the aperiodic resource parameter to the first terminal device.
The apparatus according to claim 20, wherein the aperiodic resource parameter further comprises a time interval between two adjacent time-frequency resource units in the second time-frequency resource of the first terminal device, and the time-frequency resource unit The second time-frequency resource of the first terminal device is a time-frequency resource used to send aperiodic service data.
The apparatus according to claim 20 or 21, wherein the transceiving unit is configured to send the aperiodic resource parameter to a first terminal device, comprising: being configured to send a first message to the first terminal device It is assumed that the first signaling carries the aperiodic resource parameter, and the first signaling includes a radio resource control RRC message or downlink control information DCI.
A computer-readable storage medium, characterized by comprising instructions, which when run on a computer, causes the computer to execute the method according to any one of claims 1-11.
A communication device, characterized in that it comprises a processor and a memory;

The processor reads and executes the instructions in the memory to implement the method according to any one of claims 1-8.
A communication device, characterized in that it comprises a processor and a memory;

The processor reads and executes the instructions in the memory to implement the method according to any one of claims 9-11.