A business transmission method and device

Abstract

The present application provides a service transmission method and device, which relates to the field of communication technology, and is used to solve the communication compatibility and coexistence problems between terminal devices working in different transmission modes. The terminal device determines a first transmission resource set that supports a first transmission characteristic based on the relationship between wireless resource information and transmission characteristic information. When determining to use the first transmission characteristic to transmit service data, the terminal device selects a direct link transmission resource from the first transmission resource set that supports the first transmission characteristic to transmit service data, and uses the first transmission characteristic to transmit service data on the selected direct link transmission resource. Since different transmission resource sets may correspond to different transmission characteristics, this can avoid interference to other terminal devices when the terminal device uses the transmission characteristics supported by the transmission resource set to transmit service data on different transmission resource sets, thereby solving the communication compatibility and coexistence problems between terminal devices that use different transmission characteristics or work in different transmission modes.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a service transmission method and device. Background Art

[0002] With the continuous development of society, the popularity of cars is getting higher and higher. While driving brings convenience to people's travel, it also brings certain negative impacts to human society. The rapid increase in the number of vehicles has caused a series of problems such as urban traffic congestion, frequent traffic accidents, and deterioration of environmental quality. Therefore, from the perspectives of personal safety, traffic efficiency, environmental protection, and economic effects, a complete intelligent transportation system (ITS) is needed. Therefore, ITS has naturally become a global hot spot.

[0003] Currently, vehicles can obtain road condition information or receive information services in a timely manner through vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication (for example, the infrastructure is a roadside unit (RSU)), vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication. These communication methods can be collectively referred to as V2X communication (where X represents anything). Figure 1 As shown, taking the most common V2V and V2I as an example: Vehicle 1 and Vehicle 2 communicate through V2V, and Vehicle 1 and Vehicle 2 can exchange each other's speed, driving direction, specific location, whether the emergency brake is pressed, and other information. This makes it easier for Vehicle 1 to better perceive the traffic conditions beyond the line of sight through the above information obtained from Vehicle 2, so as to make early predictions of dangerous conditions and make avoidance. For V2I communication, in addition to the exchange of the above information, RSU can also provide vehicles with various service information and access to data networks. Functions such as non-stop toll collection and in-car entertainment have greatly improved the intelligence of traffic. The network used for V2X communication is usually called the Internet of Vehicles.

[0004] Long term evolution (LTE) is the mainstream wireless communication technology at present, in which device to device (D2D) technology is regarded as an important feature and has been standardized, which supports direct communication between terminal devices. Considering that some V2X service (such as V2V / V2I) communication scenarios also belong to direct communication between terminal devices, V2X services can be transmitted through D2D technology. However, in actual practice, when two or more terminal devices (such as vehicles) communicate directly, the message transmission between vehicles may be blocked due to the presence of obstructions (such as buildings) between the vehicles, or a vehicle needs to spread the message farther. The vehicle can first transmit the message to the base station and then the base station to other vehicles to achieve vehicle network communication. The interface between the vehicle and the surrounding vehicles through direct communication can be called PC5 interface, using the dedicated frequency band of vehicle network (such as 5.9GHz), and the interface between the vehicle and the base station can be called Uu interface, using the cellular network frequency band (such as 1.8GHz).

[0005] Therefore, if Figure 2 As shown, vehicle 1 and vehicle 2 can send V2X messages using direct communication or by base station relay, such as Figure 3 As shown, vehicle 1 can send a V2X message to a base station, so that the base station can send the V2X message to vehicle 2. However, using the base station method consumes more signaling and resources, and the direct communication method may not work properly in certain situations (such as building obstruction). Therefore, the network needs to configure the terminal device to dynamically switch between the base station relay method and the direct communication method according to network conditions or terminal device business requirements.

[0006] The first transmission mode is introduced in the 3rd generation partnership project (3GPP) long term evolution (LTE). The first transmission mode introduces transmission characteristics incompatible with the second transmission mode, such as 64-phase quadrature amplitude modulation (QAM) and transmit diversity, for some enhanced services such as platooning in the transmission of V2X messages. Therefore, it is required that the terminal equipment supporting the first transmission mode needs to support the road safety services defined in the second transmission mode, such as cooperative awareness message (CAM) and distributed congestion control message (DENM), and the enhanced services defined in the first transmission mode version, such as platooning. Accordingly, the terminal equipment supporting the first transmission mode needs to support the first transmission mode and the second transmission mode, wherein the first transmission mode includes one or more transmission characteristics incompatible with the second transmission mode; and the second transmission mode includes one or more transmission characteristics defined in the second transmission mode and one or more transmission characteristics defined in the first transmission mode that are compatible with the second transmission mode.

[0007] When a terminal device supporting the first transmission mode uses the second transmission mode to send service data, it can communicate normally with the terminal device supporting the second transmission mode. However, when a terminal device supporting the second transmission mode uses the first transmission mode to transmit a V2X message to a terminal device supporting the second transmission mode, the terminal device supporting the second transmission mode cannot correctly parse the V2X message sent by the terminal device supporting the first transmission mode. At this time, when the terminal device supporting the first transmission mode and the terminal device supporting the second transmission mode work in the same time-frequency resource, the terminal device supporting the first transmission mode will interfere with the terminal device supporting the second transmission mode, causing the channel environment of the terminal device supporting the second transmission mode to deteriorate. Summary of the invention

[0008] The present application provides a service transmission method and device to solve the communication compatibility and coexistence problems between terminal devices operating in different transmission modes.

[0009] In a first aspect, the present application provides a service transmission method, which includes: a terminal device obtains first configuration information, the first configuration information including wireless resource information and transmission characteristic information corresponding to the wireless resource information; the terminal device obtains service data; the terminal device determines to use a first transmission characteristic to transmit the service data, and the terminal device selects a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information; wherein the first transmission characteristic is a transmission characteristic supported by the transmission characteristic information; the terminal device uses the first transmission characteristic to transmit service data on the direct link transmission resource.

[0010] The present application provides a service transmission method, in which the terminal device first determines the association relationship between the wireless resource information and the transmission characteristic information, the transmission characteristic information can be used to determine the first transmission characteristic, and the wireless resource information can determine the transmission resource set. Therefore, the terminal device can determine the first transmission resource set supporting the first transmission characteristic according to the association relationship between the wireless resource information and the transmission characteristic information, and when determining to use the first transmission characteristic to transmit the acquired service data, it can select a direct link transmission resource in the first transmission resource set supporting the first transmission characteristic to transmit the service data, and use the first transmission characteristic to transmit the service data on the selected direct link transmission resource. Since different transmission resource sets may correspond to different transmission characteristics, this can avoid interference to other terminal devices when the terminal device transmits service data using the transmission characteristics supported by the transmission resource set on different transmission resource sets, thereby solving the communication compatibility and coexistence problems between terminal devices using different transmission characteristics or working in different transmission modes.

[0011] In one possible design, the wireless resource information is a first transmission carrier frequency identifier, the first configuration information includes the first transmission carrier frequency identifier and transmission characteristic information corresponding to the first transmission carrier frequency identifier, the terminal device determines to use the first transmission characteristic to transmit service data, and before the terminal device selects a direct link transmission resource from the first transmission resource set corresponding to the wireless resource information, the method provided in the present application also includes: the terminal device determines all available direct link transmission resources on the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier based on the first transmission carrier frequency identifier; the terminal device determines all available direct link transmission resources of the first transmission carrier frequency as the first transmission resource set corresponding to the wireless resource information. Alternatively, the terminal device determines the transmission resource pool used by the terminal device on the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier based on the first transmission carrier frequency identifier; and all direct link transmission resources on the transmission resource pool to be used by the terminal device are determined as the first transmission resource set corresponding to the wireless resource information. Since there may be a transmission resource pool allocated to other terminal devices on the first transmission carrier of the terminal device, the first transmission resource set corresponding to the wireless resource information is determined based on all available direct link transmission resources on the first transmission carrier corresponding to the first transmission carrier identifier or the transmission resource pool used by the terminal device on the first transmission carrier to establish a mapping relationship between the wireless resource information and the first transmission resource set. This makes it easier to configure different transmission characteristics for different transmission carriers or different transmission resource pools.

[0012] In one possible design, the wireless resource information is a first transmission resource pool identifier, the first configuration information includes the first transmission resource pool identifier and transmission characteristic information corresponding to the first transmission resource pool identifier, the terminal device determines to use the first transmission characteristic to transmit service data, and before the terminal device selects a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information, the method provided in the present application includes: the terminal device determines, based on the first transmission resource pool identifier, a transmission resource pool corresponding to the first transmission resource pool identifier on a first transmission carrier frequency, and determines all available direct link transmission resources on the transmission resource pool corresponding to the first transmission resource pool identifier as the first transmission resource set corresponding to the wireless resource information. By determining the transmission resource pool corresponding to the first transmission resource pool identifier on the first transmission carrier frequency according to the first transmission resource pool identifier, and determining all available direct link transmission resources on the transmission resource pool corresponding to the first transmission resource pool identifier determined on the first transmission carrier frequency as the first transmission resource set corresponding to the wireless resource information, a relationship between all available direct link transmission resources on the transmission resource pool and the wireless resource information is established, so that it is convenient for a terminal device to select a direct link transmission resource from a transmission resource pool on a transmission carrier frequency for transmitting service data. In addition, when multiple transmission resource pools on a transmission carrier frequency correspond to different transmission characteristics, one transmission carrier frequency can correspond to multiple transmission characteristics.

[0013] In one possible design, the first transmission characteristic is 64-phase quadrature amplitude modulation (QAM), and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of the following information: first indication information, the first indication information is used to indicate support for the use of 64-QAM; or, first modulation and coding scheme (MCS) configuration information, the first MCS configuration information includes configuration information supporting the use of 64-QAM; or, second MCS configuration information, the second MCS configuration information includes one or more of a first minimum MCS index and a first maximum MCS index used by the terminal device, wherein the MCS index range determined by one or more of the first minimum MCS index and the first maximum MCS index in the first MCS index table includes an MCS index supporting the use of 64-QAM. By carrying the above fields in the transmission characteristic information, it is convenient to determine, based on the transmission characteristic information, that the first transmission characteristic supported by the transmission characteristic information is 64-QAM.

[0014] In one possible design, the first transmission characteristic is to use a second MCS index table, and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of a second minimum MCS index and a second maximum MCS index used by the terminal device, wherein the second MCS index table is an MCS index table that supports the use of 64-QAM on a direct link transmission resource; the terminal device uses the first transmission characteristic to transmit service data on the direct link transmission resource, including: the terminal device selects a first MCS for the service data in the second MCS index table according to the second minimum MCS index and / or the second maximum MCS index; the terminal device uses the first MCS to transmit service data on the direct link transmission resource, and carries the second MCS index table indication information and the index corresponding to the first MCS in the corresponding direct link control information, and carries one or more of the second minimum MCS index and the second maximum MCS index in the transmission communication information, so that the terminal device can select the first MCS for the service data according to one or more of the second minimum MCS index and the second maximum MCS index.

[0015] In one possible design, the first transmission characteristic is transmit diversity, and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of the following information: second indication information, where the second indication information is used to indicate support for the use of transmit diversity; or, transmit diversity configuration information, where the transmit diversity configuration information includes one or more of an antenna port number identifier, a codebook subset constraint identifier, a transmit antenna selection identifier, a maximum number of layers identifier, or an optional codebook enable identifier. By carrying the above fields in the transmission characteristic information, it is convenient to determine, based on the transmission characteristic information, that the first transmission characteristic supported by the transmission characteristic information is transmit diversity.

[0016] In one possible design, the method provided in the present application also includes: the terminal device obtains a first identifier corresponding to the wireless resource information and / or the transmission characteristic information, the first identifier corresponding to the parameter value of one or more first parameters of the service data, the one or more first parameters including a service type identifier, a packet priority (proximity service per-packet priority, PPPP) identifier, a quality of service (quality of service, QoS) identifier, a reliability identifier, a bearer identifier, a delay identifier or a transmission rate identifier, and a vehicle speed identifier; the terminal device determines to use the first transmission characteristic to transmit the service data, including: the terminal device determines a second identifier corresponding to the service data, the second identifier corresponds to the parameter value of one or more first parameters of the service data; the terminal device determines that the parameter value of the first parameter corresponding to the second identifier is the same as the parameter value of the first parameter corresponding to the first identifier, and the terminal device determines to use the first transmission characteristic to transmit the service data. By obtaining the correspondence between one or more first parameters and wireless resource information and / or transmission characteristic information, after receiving the service data, it is possible to determine whether to use the first transmission characteristic to transmit the service data based on the parameter values ​​of one or more first parameters corresponding to the second identifier corresponding to the service data and the parameter value of the first parameter corresponding to the first identifier. For example, when the parameter value of the first parameter corresponding to the second identifier corresponding to the service data is the same as the parameter value of the first parameter corresponding to the first identifier, it can be determined that the first transmission characteristic is used to transmit the service data.

[0017] In one possible design, the method provided in the present application also includes: the terminal device obtains a first threshold value corresponding to the wireless resource information and / or transmission characteristic information, the first threshold value corresponds to the threshold value of one or more first parameters of the service data, and the one or more first parameters include: one or more of a service type identifier, a packet priority PPPP, a quality of service QoS identifier, a reliability identifier, a bearer identifier, a delay identifier, or a transmission rate identifier; the terminal device determines to use the first transmission characteristic to transmit the service data, including: the terminal device determines a second identifier corresponding to the service data, the second identifier corresponds to the parameter value of one or more first parameters of the service data; the terminal device determines to use the first transmission characteristic to transmit the service data based on the relationship between the parameter values ​​of the one or more first parameters corresponding to the second identifier and the first threshold value, so that it can be determined to use the first transmission characteristic to transmit the service data.

[0018] In one possible design, the terminal device determines, based on the relationship between the parameter value of any one of the one or more first parameters corresponding to the second identifier and the first threshold value, that: when the terminal device determines that the parameter value of any one of the one or more first parameters corresponding to the second identifier is less than or equal to the first threshold value, the terminal device determines to use the first transmission characteristic to transmit the service data; or, when the terminal device determines that the parameter value of any one of the one or more first parameters corresponding to the service data is greater than or equal to the first threshold value, the terminal device determines to use the first transmission characteristic to transmit the service data, by determining whether the parameter value of any one of the first parameters is greater than or equal to or less than the first threshold value, when the parameter value of any one of the first parameters meets the above conditions between the first threshold value, the terminal device can determine to use the first transmission characteristic to transmit the service data.

[0019] In a possible design, the method provided in the present application also includes: the terminal device obtains a congestion level threshold value corresponding to the wireless resource information and / or transmission characteristic information; accordingly, the terminal device determines to use the first transmission characteristic to transmit the service data, including: the terminal device determines to use the first transmission characteristic to transmit the service data according to the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level threshold value; or the terminal device determines to use the first transmission characteristic to transmit the service data according to the relationship between the congestion level of the transmission carrier frequency used by the terminal device and the congestion level threshold value. By using the congestion level threshold value corresponding to the wireless resource information and / or transmission characteristic information, when the congestion level of the transmission resource pool used by the terminal device or the congestion level of the transmission carrier frequency used meets the above conditions, it can be determined to use the first transmission characteristic to transmit the service data.

[0020] In one possible design, the terminal device determines to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level threshold value, including: the terminal device determines that the congestion level of the transmission resource pool used is less than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data; or the terminal device determines that the congestion level of the transmission resource pool used is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data. By determining the relationship between the congestion level of the transmission resource pool used and the congestion level threshold value, when the congestion level of the transmission resource pool meets the congestion level threshold value, it is convenient to determine whether to trigger the use of the first transmission characteristic to transmit service data.

[0021] In one possible design, the terminal device determines to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission carrier used by the terminal device and the congestion level threshold value, including: the terminal device determines that the congestion level of the transmission carrier used is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data; or the terminal device determines that the congestion level of the transmission carrier used is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data. By determining the relationship between the congestion level of the transmission carrier used and the congestion level threshold value, when the congestion level of the transmission carrier meets the congestion level threshold value, it is convenient to determine whether to trigger the use of the first transmission characteristic to transmit service data.

[0022] In a possible design, the method provided by the present application also includes: the terminal device obtains a congestion level range corresponding to the wireless resource information and / or the transmission characteristic information, and accordingly, the terminal device determines to use the first transmission characteristic to transmit the service data, including: the terminal device determines to use the first transmission characteristic to transmit the service data according to the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level range; or, the terminal device determines to use the first transmission characteristic to transmit the service data according to the relationship between the congestion level of the transmission carrier frequency used by the terminal device and the congestion level range. By using the congestion level of the transmission resource pool used or the congestion level of the transmission carrier frequency used, it is possible to determine whether it is necessary to use the first transmission characteristic to transmit the service data according to the relationship between the congestion level of the transmission resource pool used or the congestion level of the transmission carrier frequency used and the congestion level range.

[0023] In one possible design, the terminal device determines to use a first transmission characteristic to transmit service data based on the relationship between the congestion level of a transmission resource pool used by the terminal device and the congestion level range, including: the terminal device determines that the congestion level of the transmission resource pool used is within the congestion level range, and the terminal device determines to use the first transmission characteristic to transmit service data; or, the terminal device determines to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of a transmission carrier frequency used by the terminal device and the congestion level range, including: the terminal device determines that the congestion level of the transmission carrier frequency used is within the congestion level range, and the terminal device determines to use the first transmission characteristic to transmit service data, and by obtaining the congestion level of the transmission carrier frequency used, it can be determined to use the first transmission characteristic to transmit service data when the congestion level of the transmission carrier frequency used meets the congestion level range.

[0024] In a possible design, the terminal device determines whether to use the first transmission mode to transmit service data according to whether there is service data transmitted using one or more transmission characteristics supported by the second transmission mode in the transmission resource pool used or the transmission carrier frequency used, including: the terminal device monitors the transmission resource pool used or the transmission carrier frequency used, receives and attempts to parse the received signal, and measures the received signal strength. If the received signal is successfully parsed and the signal is transmitted using the second transmission mode, and the signal strength is greater than or equal to the first threshold value, the terminal device does not use the first transmission mode to transmit service data; otherwise, if the signal received by the terminal device in the transmission resource pool used or the transmission carrier frequency used is not successfully parsed or is successfully parsed but the signal strength is less than or equal to the first threshold value, the terminal device can use the first transmission mode / first transmission characteristic to transmit service data in the transmission resource pool used or the transmission carrier frequency used, so that it can be based on. By determining whether there is service data transmitted using one or more transmission characteristics supported by the second transmission mode in the transmission resource pool used or the transmission carrier frequency used, it is decided whether to trigger the use of the first transmission mode to transmit service data, so that interference with service data transmitted using one or more transmission characteristics supported by the second transmission mode can be reduced.

[0025] In one possible design, a terminal device obtains configuration information, and the configuration information configures a service flow (QoS flow) with a flow identifier as a flow ID to support a first transmission mode. The terminal device then determines whether to use the first transmission mode to transmit service data, including: when the terminal device determines that the service flow of the service data is the same as the flow identifier configured in the configuration information or has a mapping relationship with the flow identifier configured in the configuration information, the terminal device determines to use the first transmission mode / first transmission characteristic to transmit the service data.

[0026] In one possible design, the terminal device may determine whether to use the first transmission characteristic to transmit the service data based on one or more bits reserved in the control information (SA) of the service data; or use one or more fields in the control information of the service data to indicate the transmission characteristics used for the service transmission.

[0027] In one possible design, when the configuration information of the transmission resource pool or the transmission carrier frequency does not indicate the transmission characteristics supported by the transmission resource pool or the transmission carrier frequency, or the supported transmission characteristics cannot be determined based on the above-mentioned service characteristics (including packet priority PPPP, service type, source identifier, destination identifier, etc.), channel congestion level, etc., or the transmission mode or transmission characteristics supported by the service flow are not configured, and there is no information such as service characteristics and channel congestion level, the terminal device (service flow) determines to use the second transmission mode to transmit service data.

[0028] In a second aspect, the present application provides a service transmission device, which may be a terminal device, and the service transmission device may implement the service transmission method described in any possible design of the first aspect to the first aspect. For example, the service transmission device may be a terminal device, or a chip applied to a terminal device. It may implement the above method through software, hardware, or through hardware executing corresponding software.

[0029] In a second aspect, the service transmission device includes: a receiving module, used to obtain first configuration information, the first configuration information includes wireless resource information and transmission characteristic information corresponding to the wireless resource information; the receiving module is also used to obtain service data; a processing module, used to determine the use of the first transmission characteristic to transmit the service data received by the receiving module, and select a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information received by the receiving module; wherein the first transmission characteristic is one or more of the transmission characteristic information; a sending module, used to transmit service data on the direct link transmission resource selected by the processing module using the first transmission characteristic.

[0030] In one possible design, the wireless resource information received by the receiving module is a first transmission carrier frequency identifier, and the first configuration information received by the receiving module includes the first transmission carrier frequency identifier and the transmission characteristic information corresponding to the first transmission carrier frequency identifier; the processing module is specifically used to determine all available direct link transmission resources on the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier according to the first transmission carrier frequency identifier received by the receiving module; and is used to determine all available direct link transmission resources of the first transmission carrier frequency as a first transmission resource set; or, the processing module is also used to determine the transmission resource pool used by the terminal device on the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier received by the receiving module; and is used to determine all direct link transmission resources on the used transmission resource pool as a first transmission resource set.

[0031] In one possible design, the wireless resource information received by the receiving module is a first transmission resource pool identifier, the first configuration information includes the first transmission resource pool identifier and transmission characteristic information corresponding to the first transmission resource pool identifier, and the processing module is specifically used to determine, based on the first transmission resource pool identifier received by the receiving module, all available direct link transmission resources on the transmission resource pool corresponding to the first transmission resource pool identifier and on the transmission resource pool used by the terminal device on the first transmission carrier frequency as a first transmission resource set.

[0032] In one possible design, the first transmission characteristic is 64-octal quadrature amplitude modulation (QAM), and the first transmission characteristic includes one or more of the following information: first indication information, the first indication information is used to indicate support for the use of 64-QAM; or, first modulation and coding scheme (MCS) configuration information, the first MCS configuration information includes configuration information supporting the use of 64-QAM; or, second MCS configuration information, the second MCS configuration information includes one or more of a first minimum MCS index and a first maximum MCS index used by the terminal device, wherein the MCS index range determined by one or more of the first minimum MCS index and the first maximum MCS index in the first MCS index table includes an MCS index supporting the use of 64-QAM.

[0033] In one possible design, the first transmission characteristic is to use a second MCS index table, and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of a second minimum MCS index and a second maximum MCS index used by the terminal device, wherein the second MCS index table is an MCS index table that supports the use of 64-QAM in direct link transmission resources; the processing module is also used to select a first MCS for service data according to the second minimum MCS index and / or the second maximum MCS index in the second MCS index table; the sending module is specifically used to transmit service data using the first MCS on the direct link transmission resources, and to carry the second MCS index table indication information and the index corresponding to the first MCS in the corresponding direct link control information.

[0034] In one possible design, the first transmission characteristic is transmit diversity, and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of the following information: second indication information, the second indication information is used to indicate support for the use of transmit diversity; or, transmit diversity configuration information, the transmit diversity configuration information includes one or more of an antenna port number identifier, a codebook subset constraint identifier, a transmit antenna selection identifier, a maximum number of layers identifier, or an optional codebook enable identifier.

[0035] In one possible design, the receiving module is also used to obtain a first identifier corresponding to the wireless resource information and / or the transmission characteristic information, the first identifier corresponding to the parameter value of one or more first parameters of the service data, the one or more first parameters including one or more of a service type identifier, a packet priority PPPP identifier, a quality of service QoS identifier, a reliability identifier, a bearer identifier, a delay identifier, a terminal device speed identifier, or a transmission rate identifier; the processing module is specifically used to determine a second identifier corresponding to the service data obtained by the receiving module, the second identifier corresponding to the parameter value of one or more first parameters of the service data; and when it is determined that the parameter value of the first parameter corresponding to the second identifier is the same as the parameter value of the first parameter corresponding to the first identifier, determine to use the first transmission characteristic to transmit the service data.

[0036] In one possible design, the receiving module is also used to obtain a first threshold value corresponding to the wireless resource information and / or the transmission characteristic information, the first threshold value corresponding to the threshold value of one or more first parameters of the service data, the one or more first parameters including: one or more of a service type identifier, a packet priority PPPP, a quality of service QoS identifier, a reliability identifier, a bearer identifier, a delay identifier or a transmission rate identifier; the processing module is specifically used to determine a second identifier corresponding to the service data obtained by the receiving module, the second identifier corresponding to the parameter value of one or more first parameters of the service data; and is used to determine the use of the first transmission characteristic to transmit the service data based on the relationship between the parameter value of any one of the one or more first parameters corresponding to the second identifier and the first threshold value.

[0037] In one possible design, the processing module is specifically used to determine whether to use the first transmission characteristic to transmit business data when it is determined that the parameter value of any one of the one or more first parameters corresponding to the second identifier is less than or equal to the first threshold value; or, the processing module is specifically used to determine whether to use the first transmission characteristic to transmit business data when it is determined that the parameter value of any one of the one or more first parameters corresponding to the business data is greater than or equal to the first threshold value.

[0038] In one possible design, the receiving module is also used to obtain a congestion level threshold value corresponding to the wireless resource information and / or the transmission characteristic information; accordingly, the processing module is specifically used to determine whether to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level threshold value received by the receiving module; or, the processing module is specifically used to determine whether to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission carrier frequency used by the terminal device and the congestion level threshold value received by the receiving module.

[0039] In one possible design, the processing module is specifically used to determine that when the congestion level of the transmission resource pool in use is less than or equal to the congestion level threshold value, the first transmission characteristic is used to transmit the service data; or the processing module is specifically used to determine that when the congestion level of the transmission resource pool in use is greater than or equal to the congestion level threshold value, the first transmission characteristic is used to transmit the service data.

[0040] In one possible design, the processing module is specifically used to determine that when the congestion level of the used transmission carrier frequency is greater than or equal to the congestion level threshold value, the first transmission characteristic is used to transmit the service data; or the processing module is specifically used to determine that when the congestion level of the used transmission carrier frequency is greater than or equal to the congestion level threshold value, the first transmission characteristic is used to transmit the service data.

[0041] In one possible design, the receiving module is further used to obtain a congestion level range corresponding to the wireless resource information and / or the transmission characteristic information. Accordingly, the processing module is further used to determine whether to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level range; or, the processing module is further used to determine whether to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission carrier frequency used by the terminal device and the congestion level range.

[0042] In one possible design, the processing module is further specifically used to determine that the congestion level of the used transmission resource pool is within the congestion level range, and determine to use the first transmission characteristic to transmit the service data; or, the processing module is further specifically used to determine that the congestion level of the used transmission carrier frequency is within the congestion level range, and determine to use the first transmission characteristic to transmit the service data.

[0043] In addition, the present application also provides a service transmission device, which includes: a processor, a receiver, and a transmitter, wherein the processor can be the processing module described in the second aspect, the receiver can be the processing module described in the second aspect, and the transmitter can be the sending module described in the second aspect. Optionally, the service transmission device in the present application also includes: a bus and a memory, the memory is used to store code and data, and the processor, the receiver, the transmitter, and the memory are coupled via the bus.

[0044] In a third aspect, in a possible design, the service transmission device may be a terminal device or a chip applied to a terminal device, and the service transmission device may include one or more processors. The one or more processors are configured to support the service transmission device to perform the above-mentioned first aspect and any possible design of the first aspect by executing instructions to perform the message processing or control related operations performed on the service transmission device side. Optionally, the service transmission device may also include a memory for coupling with one or more processors, which stores the necessary programs (instructions) and data of the service transmission device. In addition, optionally, the service transmission device may also include a communication interface for supporting the communication between the service transmission device and other network elements (for example, a network device or a chip applied to a network device). The communication interface may be a transceiver circuit, wherein the transceiver circuit is used to support the service transmission device to perform the above-mentioned first aspect and any possible design of the first aspect to perform message reception and transmission related operations on the service transmission device side. Optionally, the service transmission device may also include a bus. Exemplarily, the memory, the communication interface and the one or more processors may be coupled via a bus.

[0045] In a fourth aspect, the present application provides a computer-readable storage medium, which stores instructions, and when the instructions are executed, it is used to perform the following steps: obtain first configuration information, the first configuration information includes wireless resource information and transmission characteristic information corresponding to the wireless resource information; obtain service data; when determining to use the first transmission characteristic to transmit service data, select a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information; wherein the first transmission characteristic is a transmission characteristic supported by the transmission characteristic information; and transmit service data on the direct link transmission resource using the first transmission characteristic. In addition, when the instructions are executed, it is also used to execute the service transmission method described in any possible design of the first aspect.

[0046] In a fifth aspect, the present application provides a computer program product including instructions, wherein the computer program product stores instructions, and when the instructions are executed, the instructions are used to perform the following steps: obtain first configuration information, wherein the first configuration information includes wireless resource information and transmission characteristic information corresponding to the wireless resource information; obtain service data; when determining to use the first transmission characteristic to transmit service data, select a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information; wherein the first transmission characteristic is a transmission characteristic supported by the transmission characteristic information; and transmit service data on the direct link transmission resource using the first transmission characteristic. In addition, when the instructions are executed, the instructions are also used to execute the service transmission method described in any possible design of the first aspect.

[0047] In a sixth aspect, the present application provides a chip, which is applied to a service transmission device, the chip includes one or more processors and an interface circuit, the interface circuit is coupled to the one or more processors, and the processor is used to run a computer program or instruction to perform the following steps: obtain first configuration information, the first configuration information includes wireless resource information and transmission characteristic information corresponding to the wireless resource information; obtain service data; when determining to use the first transmission characteristic to transmit service data, select a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information; wherein the first transmission characteristic is a transmission characteristic supported by the transmission characteristic information; and transmit service data on the direct link transmission resource using the first transmission characteristic. In addition, the processor is also used to execute the service transmission method described in any possible design of the first aspect.

[0048] Optionally, the chip described above in the present application also includes one or more memories, and instructions are stored in the one or more memories. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A vehicle communication schematic diagram is provided;

[0050] Figure 2 A schematic diagram of interactive messages between vehicles;

[0051] Figure 3 is a schematic diagram of another type of interactive messages between vehicles;

[0052] Figure 4 A schematic diagram of a transmission system structure provided for this application;

[0053] Figure 5 A schematic diagram of the structure of a base station provided in this application;

[0054] Figure 6 A schematic diagram of the structure of another base station provided in this application;

[0055] Figure 7 A flow chart of a service transmission method provided in this application Figure 1 ;

[0056] Figure 8 A schematic diagram of the structure of a time-frequency resource provided for this application;

[0057] Fig. 9 A flow chart of a service transmission method provided in this application Figure 2 ;

[0058] Fig.10 A flow chart of a service transmission method provided in this application Figure 3 ;

[0059] Fig.11 A flow chart of a service transmission method provided in this application Figure 4 ;

[0060] Fig.12 A flow chart of a service transmission method provided in this application Figure 5 ;

[0061] Fig.13 A flow chart of a service transmission method provided in this application Figure 6 ;

[0062] Fig.14 A schematic diagram of the structure of a terminal device provided for this application;

[0063] Fig.15 A schematic diagram of the structure of a chip provided in this application. DETAILED DESCRIPTION

[0064] The present application provides a service transmission method and device to solve the communication compatibility and coexistence problems between terminal devices working in different transmission modes. The method and the device are based on the same invention concept. Since the principles of solving the problem by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0065] Some terms in this application are explained below to facilitate understanding by those skilled in the art.

[0066] 1) Transmit diversity technology: The basic principle is to carry multiple signal copies of the same information through multiple channels (time, frequency or space, etc.). Due to the different transmission characteristics of each channel, the fading of multiple copies of the signal is also different. Then the receiver separates the received multipath signal into unrelated multi-path signals and combines the energy of the multi-path signals according to certain rules to maximize the energy of the received useful signal.

[0067] 2) The transmission resource pool may be a transmission carrier frequency, for example, a carrier or a frequency, which refers to a frequency band within a preset frequency offset of a frequency point on a carrier, or a time-frequency resource on a frequency band allocated to a terminal device, specifically a set of subframes, the set of subframes includes a starting subframe number, and the bitmap representing the subframe set may be determined by the configuration information corresponding to the transmission resource pool. For example, the frequency point on carrier 1 is A, and the preset frequency offset is B, then the frequency band between AB and A+B may be determined as the transmission resource pool.

[0068] 3) Direct link transmission resources refer to some available time-frequency resources selected from the above transmission resource pool based on the request to send service data, the characteristics of the service data and the channel monitoring situation, and specifically can be a set of physical resource blocks (PRBs).

[0069] The terms "first", "second", etc. in this application are only used to distinguish different objects and do not limit their order. For example, the first transmission mode and the second transmission mode are only used to distinguish different transmission modes and do not limit their order.

[0070] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the previously associated objects are in an "or" relationship. In addition, one or more of A, B, and C indicate that the following relationships may exist: A exists alone, B exists alone, C exists alone, A and B exist at the same time, A and C exist at the same time, B and C exist at the same time, A, B, and C exist at the same time, A and A exist at the same time, B and B exist at the same time, C and C exist at the same time.

[0071] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0072] The present application will be described in detail below with reference to the accompanying drawings.

[0073] The communication method in this application can be applied to a variety of system architectures. Figure 4 This is a schematic diagram of a system architecture applicable to this application. Figure 4 As shown, the system architecture includes one or more network devices (such as Figure 4 The first network device 1011 and the second network device 1012 shown in FIG. 1 ), one or more terminal devices (such as Figure 4 The first terminal device 1021, the second terminal device 1022 and the third terminal device 1023 are shown). The cell covered by the network device may be one or more cells, which is not specifically limited in this application.

[0074] It should be noted that Figure 4The communication system shown may include a 4th generation (4G) communication system, a 5th generation (5G) communication system, or various future communication systems.

[0075] 1) Terminal equipment is a device with wireless transceiver functions, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.). Terminal equipment is also called user equipment (UE), mobile station (MS), mobile terminal (MT) and terminal equipment, etc., which is a device that provides voice and / or data connectivity to users. For example, terminal equipment includes handheld devices with wireless connection functions, vehicle-mounted devices, etc. At present, the terminal device can be: a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), an in-vehicle device (such as a car, a bicycle, an electric car, an airplane, a ship, a train, a high-speed train, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a smart home device (such as a refrigerator, a TV, an air conditioner, an electric meter, etc.), an intelligent robot, a workshop device, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, a flying device (such as an intelligent robot, a hot air balloon, a drone, an airplane), etc. In a possible application scenario of the present application, the terminal device is a terminal device that often works on the ground, such as an in-vehicle device. In this application, for the sake of convenience of description, the chip deployed in the above-mentioned device, or the chip may also be referred to as a terminal device.

[0076] The service transmission method provided in the present application can be applied to any type of terminal device, and the following description is mainly based on the ground terminal device as an example.

[0077] 2) Network equipment, which is a node in the radio access network, can also be called a base station, a radio access network (RAN) node (or equipment). At present, examples of network equipment are: next generation node basestation (gNB), such as a new radio (NR) base station (Node B, NB) or a 5G base station, a transmission reception point (TRP), an evolved NodeB (eNB), a radio network controller (RNC), a NodeB (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a base band unit (BBU), or a wireless fidelity (Wifi) access point (AP), etc.

[0078] Since the access network in the future can be implemented using the cloud radio access network (C-RAN) architecture, one possible approach is to split the protocol stack architecture and functions of the traditional base station into two parts, one called the central unit (CU) and the other called the distributed unit (DU). The actual deployment of the CU and DU is relatively flexible. For example, the CU parts of multiple base stations can be integrated together to form a larger functional entity. Figure 5 As shown, it is a schematic diagram of a network architecture provided by an embodiment of the present application. Figure 5As shown, the network architecture includes CN equipment and RAN equipment. The RAN equipment includes a baseband device and a radio frequency device, wherein the baseband device can be implemented by one node or by multiple nodes, and the radio frequency device can be independently implemented remotely from the baseband device, or integrated into the baseband device, or partially remotely arranged and partially integrated into the baseband device. For example, in an LTE communication system, the RAN equipment (eNB) includes a baseband device and a radio frequency device, wherein the radio frequency device can be remotely arranged relative to the baseband device (for example, the radio remote unit (RRU) is relative to the baseband processing unit (BBU)), and the RAN equipment is implemented by a node, which is used to implement the functions of the protocol layers such as radio resource control (RRC), packet data convergence protocol (PDCP), radio link control (RLC), and medium access control (MAC). For another example, in an evolutionary structure, the baseband device may include a centralized unit (CU) and a distributed unit (DU), and multiple DUs may be centrally controlled by one CU. As Figure 5 As shown, CU and DU can be divided according to the protocol layers of the wireless network, for example, the functions of the PDCP layer and above are set in the CU, and the protocol layers below the PDCP, such as the functions including the radio link control and media access control layers, are set in the DU.

[0079] This division of the protocol layer is only an example. It can also be divided in other protocol layers, such as dividing in the RLC layer, setting the functions of the RLC layer and the protocol layers above in the CU, and the functions of the protocol layers below the RLC layer in the DU; or dividing in a certain protocol layer, for example, setting some functions of the RLC layer and the functions of the protocol layers above the RLC layer in the CU, and setting the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer in the DU. In addition, it can also be divided in other ways, such as dividing by latency, setting the functions whose processing time needs to meet the latency requirements in the DU, and the functions that do not need to meet the latency requirements in the CU.

[0080] In addition, the radio frequency device can be remote and not placed in the DU, or can be integrated in the DU, or can be partially remote and partially integrated in the DU, without any limitation here.

[0081] In addition, please continue to refer to Figure 6 , relative to Figure 5The architecture shown can also separate the control plane (CP) and user plane (UP) of the CU and implement them in different entities, namely, the control plane CU entity (CU-CP entity) and the user plane CU entity (CU-UP entity).

[0082] In the above network architecture, the signaling / data generated by the CU can be sent to the terminal device through the DU, or the signaling / data generated by the terminal device can be sent to the CU through the DU. The DU can directly encapsulate the signaling / data through the protocol layer and transparently transmit it to the terminal device or CU without parsing it. In the following embodiments, if the transmission of such signaling / data between the DU and the terminal device is involved, at this time, the sending or receiving of the signaling / data by the DU includes this scenario. For example, the signaling of the RRC or PDCP layer will eventually be processed into the signaling / data of the physical layer (PHY) and sent to the terminal device, or converted from the received signaling / data of the PHY layer. Under this architecture, the signaling / data of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and the radio frequency.

[0083] In the above embodiments, the CU is divided into network devices in the RAN. In addition, the CU may also be divided into network devices in the CN, which is not limited here.

[0084] The apparatus in the following embodiments of the present application may be located in a terminal device or a network device according to the functions implemented. When the above CU-DU structure is adopted, the network device may be a CU node, or a DU node, or a RAN device including a CU node and a DU node.

[0085] Take the terminal device as an example of a vehicle-mounted device, wherein the vehicle-mounted device A supports the first transmission mode, and the vehicle-mounted device B supports the second transmission mode, wherein the first transmission mode has a first transmission characteristic that is incompatible with the second transmission mode, for example, the first transmission characteristic is 64-QAM. In this way, when V2X messages need to be exchanged between the vehicle-mounted device A and the vehicle-mounted device B, since the vehicle-mounted device B is not compatible with the first transmission characteristic in the first transmission mode, the vehicle-mounted device B may not be able to correctly parse the V2X message sent by the vehicle-mounted device A through the above-mentioned first transmission characteristic. In addition, the vehicle-mounted device A may also cause interference to the vehicle-mounted device B, thereby affecting the communication quality of the vehicle-mounted device B.

[0086] Based on this, the present application provides a service transmission method, in which the terminal device first determines the association relationship between the wireless resource information and the transmission characteristic information, the transmission characteristic information can be used to determine the first transmission characteristic, and the wireless resource information can determine the transmission resource set used to transmit the V2X message. Therefore, the terminal device can determine the first transmission resource set supporting the first transmission characteristic based on the association relationship between the wireless resource information and the transmission characteristic information, and when determining to use the first transmission characteristic to transmit the acquired service data, it can select a direct link transmission resource in the first transmission resource set supporting the first transmission characteristic to transmit the service data, and use the first transmission characteristic to transmit the service data on the selected direct link transmission resource. Since different transmission resource sets may correspond to different transmission characteristics, this can avoid interference to other terminal devices when the terminal device samples the transmission characteristics supported by the transmission resource set on different transmission resource sets to transmit service data, thereby improving communication quality.

[0087] The following is an introduction to the process of the service transmission method provided by this application. Figure 7 As shown, including:

[0088] S101. A terminal device obtains first configuration information, where the first configuration information includes wireless resource information and transmission characteristic information corresponding to the wireless resource information.

[0089] Specifically, the terminal device in this application may be Figure 4 The terminal device shown is not limited in this application.

[0090] Exemplarily, the wireless resource information in the present application may be a wireless resource identifier.

[0091] Among them, the wireless resource information is used to determine the transmission resource set that supports the transmission of V2X messages.

[0092] Exemplarily, the first transmission characteristic in the present application may be one or more transmission characteristics introduced in the first transmission mode and incompatible with the second transmission mode.

[0093] Exemplarily, the second transmission mode in the present application includes transmission characteristics originally present in the second transmission mode and transmission characteristics introduced in the first transmission mode and compatible with the second transmission mode. Among them, the transmission characteristics originally present in the second transmission mode may be multi-carrier, use of an MCS table that does not support 64-QAM, etc.

[0094] Exemplarily, the first transmission mode in the present application includes transmission characteristics introduced in the first transmission mode and incompatible with the second transmission mode.

[0095] Exemplarily, the transmission resource set in the present application can be a time-frequency resource or a frequency domain resource. For example, the frequency domain resource can be a transmission carrier frequency, such as a carrier or a frequency, and the time-frequency resource can be a transmission resource pool.

[0096] Specifically, the wireless resource information in the present application may be one or more of a transmission carrier frequency identifier and a transmission resource pool identifier.

[0097] In one example, a transmission carrier frequency in the present application may be configured with a transmission resource pool, such as Figure 8 The transmission resource pool 1 shown in FIG. 1 may also be configured with two or more transmission resource pools that do not overlap (also referred to as transmission resource pools that do not intersect), such as Figure 8 The transmission resource pool 2 and the transmission resource pool 3 are shown. Each transmission resource pool may correspond to a transmission mode, that is, the terminal device may determine one or more transmission characteristics included in the transmission mode corresponding to each transmission resource pool as transmission characteristics supported by each transmission resource pool.

[0098] In the present application, the transmission resource pools without overlapping parts may refer to: any PRB / subframe can only exist in one transmission resource pool at most, and the same PRB / subframe cannot exist in two or more transmission resource pools at the same time.

[0099] For example, the transmission mode corresponding to the transmission resource pool 1 may be the first transmission mode, and the first transmission mode may include transmission characteristic 1 and transmission characteristic 2. Then the transmission characteristics supported by the transmission resource pool 1 are transmission characteristic 1 and transmission characteristic 2.

[0100] In addition, the terminal device can determine the transmission mode corresponding to a transmission carrier and the supported transmission characteristics based on the transmission mode corresponding to each transmission resource pool included in a transmission carrier. When a transmission carrier is configured with two or more transmission resource pools, and the two or more transmission resource pools correspond to different transmission modes, then one transmission carrier can correspond to two or more transmission modes.

[0101] For example, transmission carrier frequency 1 is configured with a transmission resource pool 1, and the transmission mode corresponding to the transmission resource pool 1 is the first transmission mode. Then the terminal device determines that the transmission mode corresponding to transmission carrier frequency 1 is the first transmission mode.

[0102] For example, transmission carrier 1 is configured with transmission resource pool 1 and transmission resource pool 2, wherein the transmission mode corresponding to transmission resource pool 1 is the first transmission mode, and the transmission mode corresponding to transmission resource pool 2 is the second transmission mode. Then the terminal device determines that the transmission mode corresponding to transmission carrier 1 is the first transmission mode and the second transmission mode.

[0103] Since the wireless resource information in the present application can be used by the terminal device to determine the wireless resource corresponding to the wireless resource information from one or more wireless resources configured by the network device (for example, the wireless resource is a transmission carrier frequency or a transmission resource pool), therefore, in the actual process, the network device can carry an indication information in the configuration information of one or more wireless resources, and the indication information is used to indicate the transmission mode supported by one or more wireless resources. Therefore, the terminal device in the present application can determine the transmission mode supported by the wireless resource according to the indication information included in the configuration information of the wireless resource, thereby determining the mapping relationship between the wireless resource information and the transmission characteristic information.

[0104] In an example, in the present application, the terminal device may determine the mapping relationship between the wireless resource information and the transmission characteristic information in the following manner, which may be implemented in S1011:

[0105] S1011. The terminal device determines the transmission mode supported by the wireless resources indicated by the wireless resource information according to the indication information included in the configuration information of the wireless resources indicated by the wireless resource information, and obtains first configuration information according to one or more transmission characteristics corresponding to the transmission mode supported by the wireless resources.

[0106] The indication information may include a first indication and a second indication, wherein the first indication is used to indicate that the wireless resources indicated by the wireless resource information support a first transmission mode, and the second indication is used to indicate that the wireless resources indicated by the wireless resource information support a second transmission mode.

[0107] Exemplarily, taking the wireless resource indicated by the wireless resource information as a transmission carrier as an example, the terminal device determines that the configuration information of the transmission carrier includes the first indication, then the terminal device determines that the transmission carrier supports the first transmission mode, and the terminal device determines that the configuration information of the transmission carrier includes the second indication, then the terminal device determines that the transmission carrier supports the second transmission mode.

[0108] In the present application, the size of the indication information may be determined by the number of transmission resource pools configured with a transmission carrier frequency: for example, when the wireless resource is a transmission carrier frequency, the size of the indication information may be 1 bit.

[0109] For example, the indication information in the configuration information of the wireless resource is "0", indicating that the transmission mode supported by the wireless resource is the first transmission mode, and the indication information in the configuration information of the wireless resource is "1", indicating that the transmission mode supported by the wireless resource is the second transmission mode.

[0110] In addition, the terminal device and the network device can also negotiate whether to carry indication information in the configuration information of the wireless resource, and which transmission mode the wireless resource specifically supports when indication information is carried in the configuration information of one wireless resource and when indication information is not carried in the configuration information of another wireless resource.

[0111] In one example, when the configuration information negotiated between the terminal device and the network device carries indication information, the transmission mode supported by the wireless resource is the first transmission mode; when the configuration information negotiated between the terminal device and the network device does not carry indication information, the transmission mode supported by the wireless resource is the second transmission mode.

[0112] For example, if the terminal device determines that the configuration information of the wireless resource indicated by the wireless resource information includes indication information, the terminal device determines that the wireless resource indicated by the wireless resource information supports the first transmission mode. If the terminal device determines that the configuration information of the wireless resource indicated by the wireless resource information does not include indication information, the terminal device determines that the wireless resource indicated by the wireless resource information supports the second transmission mode.

[0113] In another example, when the negotiated configuration information between the terminal device and the network device carries indication information, the transmission mode supported by the wireless resource is the second transmission mode; when the negotiated configuration information between the terminal device and the network device does not carry indication information, the transmission mode supported by the wireless resource is the first transmission mode.

[0114] The above introduces how to determine the transmission mode supported by the wireless resources. It can be understood that after determining the transmission mode supported by the wireless resources, the terminal device can establish a mapping relationship between one or more transmission characteristics included in the transmission mode supported by the wireless resources and the wireless resource information.

[0115] Exemplarily, the terminal device described in the present application can obtain the configuration information of wireless resources in the following ways, for example, the terminal device obtains the configuration information of wireless resources by means of pre-stored information, or by a system message broadcast by the network device, or by a message sent by the network device through dedicated radio resource control (RRC) signaling.

[0116] In addition, in the present application, on the one hand, the terminal device can determine whether a carrier frequency is configured with two or more transmission resource pools, and the position of each transmission resource pool in the two or more transmission resource pools and the supported transmission mode according to the configuration information sent by the network device. On the other hand, the terminal device in the present application can also determine the transmission resource pool included in a transmission carrier frequency in the following manner:

[0117] The network device can send configuration information of two or more transmission carrier frequency sets to the terminal device, all transmission carrier frequencies included in the two or more transmission carrier frequency sets are transmission carrier frequencies supported by the terminal device, and the configuration information of each transmission carrier frequency set in the two or more transmission carrier frequency sets is used to determine the transmission mode supported by the transmission carrier frequency set, and different transmission carrier frequency sets support different transmission modes.

[0118] When the terminal device determines, based on the configuration information of two or more transmission carrier frequency sets, that there are overlapping transmission carriers in any two of the two or more transmission carrier frequency sets, then the terminal device determines that the partially overlapping transmission carriers may correspond to two or more transmission modes. Therefore, the terminal device may divide the partially overlapping transmission carriers into several transmission resource pools so that each transmission resource pool corresponds to a transmission mode.

[0119] In the present application, any two transmission carrier frequency sets having overlapping transmission carrier frequencies means that: one transmission carrier frequency exists in two or more transmission resource sets.

[0120] Exemplarily, the terminal device determines that transmission carrier set 1 supports a first transmission mode, the transmission carrier set 2 supports a second transmission mode, and there are overlapping transmission carriers between the transmission carrier set 1 and the transmission carrier set 2, for example, transmission carrier 3, then transmission carrier 3 supports both the first transmission mode and the second transmission mode, then the terminal device can divide two transmission resource pools on transmission carrier 3 that do not have overlapping parts.

[0121] Exemplarily, the terminal device uses the carrier frequency portion on transmission carrier 3 that supports the first transmission mode as a transmission resource pool, and uses the carrier frequency portion on transmission carrier 3 that supports the second transmission mode as another transmission resource pool, thereby determining the two transmission resource pools included on transmission carrier 3.

[0122] It should be noted that, when a transmission carrier frequency supports two or more transmission modes, a 2-bit field may be used in the configuration information of the transmission carrier frequency to indicate the transmission mode supported by the transmission carrier frequency.

[0123] Exemplarily, "00" is used to indicate that the transmission carrier frequency supports the second transmission mode, "01" is used to indicate that the transmission carrier frequency supports the first transmission mode, and "11" is used to indicate that the transmission carrier frequency supports the second transmission mode and the first transmission mode.

[0124] Since the first transmission characteristic may be a transmission characteristic introduced in the first transmission mode and incompatible with the second transmission mode, different first transmission characteristics may target different transmission characteristic information, which will be introduced separately below:

[0125] In one example, taking the first transmission characteristic as 64-phase quadrature amplitude modulation (QAM) as an example, the transmission characteristic information corresponding to the first transmission characteristic may include one or more of the following information: first indication information, the first indication information is used to indicate support for the use of 64-QAM; first MCS configuration information, the first MCS configuration information includes configuration information supporting the use of 64-QAM; second MCS configuration information, the second MCS configuration information includes one or more of a first minimum MCS index and a first maximum MCS index used by the terminal device, wherein the MCS index range determined by one or more of the first minimum MCS index and the first maximum MCS index in the first MCS index table includes an MCS index supporting the use of 64-QAM.

[0126] In yet another example, taking the first transmission characteristic as transmit diversity as an example, the transmission characteristic information corresponding to the first transmission characteristic may include one or more of the following information:

[0127] Second indication information, the second indication information is used to indicate support for the use of transmit diversity; or, transmit diversity configuration information, the transmit diversity configuration information includes one or more of an antenna port number identifier, a codebook subset constraint identifier, a transmit antenna selection identifier, a maximum number of layers identifier, or an optional codebook enable identifier.

[0128] In another example, taking the use of the second MCS index table as an example for the first transmission characteristic, the transmission characteristic information corresponding to the first transmission characteristic includes one or more of the second minimum MCS index and the second maximum MCS index used by the terminal device, wherein the second MCS index table is an MCS index table that supports the use of 64-QAM in direct link transmission resources; then step S104 can be specifically implemented in the following manner: the terminal device selects the first MCS for the service data in the second MCS index table according to the second minimum MCS index and / or the second maximum MCS index; the terminal device uses the first MCS to transmit service data on the direct link transmission resource, and carries the second MCS index table indication information and the index corresponding to the first MCS in the corresponding direct link control information.

[0129] The second minimum MCS index here represents the lower limit of all MCS indexes included in the second MCS table, and the second minimum MCS index represents the upper limit of all MCS indexes included in the second MCS table, wherein the index table determined by the second minimum index and the second maximum index in the second MCS table supports 64-QAM, as well as supports other MCS modes.

[0130] Another example: S1012, the terminal device can send a message from a sending device (for example, Figure 4 The first configuration information is obtained from the network device shown in the figure, or a chip used in the network device), where the first configuration information includes a mapping relationship between wireless resource information and transmission characteristic information.

[0131] Exemplarily, in the present application, the terminal device can obtain the first configuration information in the following ways: by pre-stored information, or by obtaining the first configuration information from dedicated signaling (for example, radio resource control (RRC) signaling) sent by a network device to the terminal device, or by obtaining the first configuration information from system information broadcast by a network device, or by the terminal device obtaining the first configuration information through an upper layer of the terminal device, or by the terminal device obtaining the first configuration information from pre-stored information, which is not limited in the present application.

[0132] The upper layer of the terminal device in this application is relative to the current protocol layer. In this application, it is mainly relative to the upper layer of the access layer, which can be the upper application layer or adaptation layer, etc.

[0133] S102: The terminal device obtains service data.

[0134] Exemplarily, in the present application, the access layer of the terminal device can obtain service data from the upper layer of the terminal device.

[0135] S103: When the terminal device determines to use the first transmission characteristic to transmit service data, the terminal device selects a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information. The first transmission characteristic is a transmission characteristic supported by the transmission characteristic information.

[0136] Exemplarily, when the first transmission resource set includes multiple direct link transmission resources, the terminal device can arbitrarily select a direct link transmission resource from the multiple direct link transmission resources for transmitting service data, which is not limited in the present application.

[0137] S104. The terminal device transmits service data using the first transmission characteristic in the direct link transmission resource.

[0138] Exemplarily, the terminal device may transmit the service data to other terminal devices.

[0139] The present application provides a service transmission method, wherein the terminal device first determines the association relationship between wireless resource information and transmission characteristic information, the transmission characteristic information can be used to determine the first transmission characteristic, and the wireless resource information can determine the transmission resource set. Therefore, the terminal device can determine the first transmission resource set supporting the first transmission characteristic based on the association relationship between the wireless resource information and the transmission characteristic information, and when determining to use the first transmission characteristic to transmit the acquired service data, it can select a direct link transmission resource from the first transmission resource set supporting the first transmission characteristic to transmit the service data, and use the first transmission characteristic to transmit the service data on the selected direct link transmission resource. Since different transmission resource sets may correspond to different transmission characteristics, this can avoid interference to other terminal devices when the terminal device transmits service data using the transmission characteristics supported by the transmission resource set on different transmission resource sets, thereby solving the problem of compatible communication and coexistence between terminal devices using different transmission characteristics and working in different transmission modes.

[0140] Exemplarily, as another embodiment of the present application, Fig. 9 As shown, before step S103 provided in this application, the following steps are also included:

[0141] S105. The terminal device determines a first transmission resource set based on wireless resource information, wherein the first transmission resource set supports a first transmission characteristic.

[0142] Since one transmission carrier frequency can be configured with one transmission resource pool or with two or more transmission resource pools, the wireless resource information in the present application may be used to determine the transmission resource pool identifier or to determine the transmission carrier frequency identifier. The following will introduce the specific contents of the first transmission resource set under different wireless resource information respectively:

[0143] One case is Case 1: the network device configures all of the one or more transmission resource pools on the one transmission carrier frequency to the terminal device. Another case is Case 2: the network device configures a portion of the one or more transmission resource pools on the one transmission carrier frequency to the terminal device, and configures another portion of the one or more transmission resource pools to other terminal devices.

[0144] Exemplarily, based on Case 1 as an example of the present application, the terminal device may determine the first transmission resource set according to the wireless resource information in the following manner:

[0145] S1051. The terminal device determines, according to a first transmission carrier frequency identifier, all available direct link transmission resources on a first transmission carrier frequency corresponding to the first transmission carrier frequency identifier.

[0146] Exemplarily, in the present application, the first transmission carrier frequency identifier is used by a terminal device to determine a first transmission carrier frequency from one or more transmission carrier frequencies configured by a network device for the terminal device.

[0147] S1052. The terminal device determines all available direct link transmission resources of the first transmission carrier frequency as a first transmission resource set.

[0148] Exemplarily, the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier is carrier 1, and carrier 1 includes N direct link transmission resources, then the terminal device can determine that the first transmission resource set is the N direct link transmission resources included on carrier 1, where N is a positive integer.

[0149] For example, the first transmission carrier frequency is carrier 1, and carrier 1 includes transmission resource pool 1, transmission resource pool 2, and transmission resource pool 3, wherein transmission resource pool 1, transmission resource pool 2, and transmission resource pool 3 are all transmission resource pools configured by the network device for the terminal device and can be used by the terminal device. Among them, the available direct link transmission resources of the terminal device on transmission resource pool 1 are direct link transmission resource 1 and direct link transmission resource 2. The available direct link transmission resources on transmission resource pool 2 are direct link transmission resource 3, direct link transmission resource 4, and direct link transmission resource 5, and the available direct link transmission resources on transmission resource pool 3 are direct link transmission resource 6, direct link transmission resource 7, and direct link transmission resource 8, then the terminal device determines that the first transmission resource set is direct link transmission resource 1 to direct link transmission resource 8.

[0150] Based on Case 2, as another example of the present application, the terminal device may determine the first transmission resource set according to the wireless resource information in the following manner:

[0151] S1053. The terminal device determines, according to the first transmission carrier frequency identifier, a transmission resource pool used by the terminal device on the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier.

[0152] Exemplarily, the first transmission carrier frequency identifier is used by the terminal device to determine a first transmission carrier frequency allocated to the terminal device from one or more transmission carrier frequencies configured by the network device.

[0153] S1054. The terminal device determines all available direct link transmission resources in the transmission resource pool to be used as a first transmission resource set.

[0154] For example, the first transmission carrier frequency is carrier 1, which includes transmission resource pool 1, transmission resource pool 2, transmission resource pool 3 and transmission resource pool 4, wherein transmission resource pool 1 and transmission resource pool 2 are configured by the network device for other terminal devices, and transmission resource pool 3 and transmission resource pool 4 are configured by the network device for terminal devices, wherein transmission resource pool 3 is the transmission resource pool used by the terminal device, and all available direct link transmission resources on transmission resource pool 3 are: direct link transmission resource 1, direct link transmission resource 2 and direct link transmission resource 3, then the terminal device determines that the first transmission resource set is direct link transmission resource 1, direct link transmission resource 2 and direct link transmission resource 3.

[0155] It should be noted that, taking the first transmission carrier frequency as a carrier as an example, when a carrier is configured with two or more transmission resource pools without overlapping parts, each of the two or more transmission resource pools can be mapped to the same transmission mode or to different transmission modes. Therefore, one or more transmission characteristics included in the transmission mode to which each transmission resource pool is mapped can be determined as one or more transmission characteristics supported by each transmission resource pool.

[0156] Exemplarily, in the present application, the transmission modes corresponding to two or more transmission resource pools without overlapping parts are transmission modes supported by the carriers where the two or more transmission resource pools without overlapping parts are located.

[0157] The following takes two or more transmission resource pools mapped to different transmission modes as an example. The two or more transmission resource pools on carrier 1 include: Pool A and Pool B, where Pool A corresponds to the second transmission mode and Pool B corresponds to the first transmission mode. Carrier 1 supports the second transmission mode and the first transmission mode.

[0158] In addition, the N direct link transmission resources included in carrier 1 are equal to the sum of the M1 direct link transmission resources included in transmission resource pool 1 and all direct link transmission resources included in transmission resource pool 2.

[0159] In another example, the wireless resource information is a first transmission resource pool identifier, and the terminal device may determine the first transmission resource set according to the wireless resource information in the following manner:

[0160] S1055. The terminal device determines, on the first transmission carrier frequency, a transmission resource pool corresponding to the first transmission resource pool identifier according to the first transmission resource pool identifier.

[0161] It can be understood that the first transmission carrier frequency here is a transmission carrier frequency that can be used by the terminal device.

[0162] S1056. The terminal device determines all available direct link transmission resources on the transmission resource pool corresponding to the first transmission resource pool identifier as a first transmission resource set.

[0163] Exemplarily, the first transmission resource pool identifier may be used by the terminal device to determine a transmission resource pool corresponding to the first transmission resource pool identifier from one or more transmission resource pools configured for the terminal device by the network device.

[0164] In the present application, the terminal device may determine to use the first transmission characteristic to transmit service data in the following manner:

[0165] like Fig.10 As shown, as another embodiment of the present application, the method provided by the present application also includes:

[0166] S106. The terminal device obtains a first identifier corresponding to the wireless resource information and / or transmission characteristic information, wherein the first identifier corresponds to a parameter value of one or more first parameters of the service data, and the one or more first parameters include: an identifier of the service type, an identifier of PPPP, an identifier of the quality of service (QoS), an identifier of reliability, an identifier of the bearer, an identifier of the delay, an identifier of the terminal device speed, or an identifier of the transmission rate.

[0167] Exemplarily, the terminal device can establish a mapping relationship between a service type identifier and a transmission mode or one or more transmission characteristics supported by the transmission mode, or establish a mapping relationship between a PPPP identifier and a transmission mode or one or more transmission characteristics supported by the transmission mode, or establish a mapping relationship between a reliability identifier and a transmission mode or one or more transmission characteristics supported by the transmission mode, and so on, to obtain a first identifier corresponding to the wireless resource information and / or transmission characteristic information.

[0168] Exemplarily, any one of the parameter values ​​for identifying the quality of service QoS, the parameter value for identifying the reliability, the parameter value for identifying the bearer, the parameter value for identifying the delay, or the parameter value for identifying the transmission rate can correspond to a specified value, or can correspond to a range value with an upper limit and a lower limit, and the present application does not impose any limitation on this.

[0169] Exemplarily, the parameter value of the quality of service QoS identifier corresponds to the parameter value of the first quality of service, or the quality of service QoS identifier indicates a parameter value between the parameter value of the first quality of service and the parameter value of the second quality of service.

[0170] For example, the parameter value of the first quality of service corresponding to the identifier of the quality of service QoS is 5, or the parameter value between the parameter value of the first quality of service and the parameter value of the second quality of service corresponding to the identifier of the quality of service QoS is [5, 10]. The identifier of the reliability corresponds to the parameter value of the first reliability, or the identifier of the reliability corresponds to the parameter value between the parameter value of the first reliability and the parameter value of the second reliability. For example, the parameter value of the first reliability corresponding to the identifier of the reliability is 0.8, or the parameter value between the parameter value of the first reliability and the parameter value of the second reliability corresponding to the identifier of the reliability corresponds to [0.2, 0.5].

[0171] Based on step S106, as an example of the present application, the terminal device determines to use the first transmission characteristic to transmit the service data, which can be implemented through step S1031:

[0172] S1031. The terminal device determines a second identifier corresponding to the service data, where the second identifier corresponds to parameter values ​​of one or more first parameters of the service data.

[0173] The second identifier corresponding to the business data in this application can be obtained by the terminal device from the upper layer of the terminal device, or the terminal device obtains it through network configuration, or obtains it through pre-stored information, and this application does not limit this.

[0174] S1032: When the terminal device determines that the parameter value of the first parameter corresponding to the second identifier is the same as the parameter value of the first parameter corresponding to the first identifier, the terminal device determines to use the first transmission characteristic to transmit service data.

[0175] In one example, the parameter value of the first parameter corresponding to the second identifier in the present application is the same as the parameter value of the first parameter corresponding to the first identifier, which can be understood as follows: 1. When the identifier of one or more first parameters corresponding to the first identifier is a specified value or a range value, the parameter value of the one or more parameters corresponding to the second identifier is the same as the parameter value of the one or more parameters corresponding to the first identifier. 2. When the identifier of one or more first parameters corresponding to the first identifier is a range value, the parameter value of the one or more parameters corresponding to the second identifier is within the range of the parameter value of the one or more parameters corresponding to the first identifier.

[0176] Exemplarily, on the one hand, when the first identifier includes a parameter A, the second identifier also includes the same parameter A as the first identifier, and the value of the parameter A included in the first identifier is the same as the value of the parameter A included in the second identifier; then the second identifier is determined to be the first identifier.

[0177] Exemplarily, if the first identifier includes three parameters, the second identifier should also include the same three parameters, and the values ​​of the three parameters are respectively the same, so that it can be determined that the first identifier is the same as the second identifier.

[0178] For example, when the first parameter corresponding to the first identifier is the QoS identifier and the parameter value of the QoS identifier is 5, when the terminal device determines that the parameter value of the QoS identifier corresponding to the second identifier corresponding to the service data is 5, the terminal device determines to use the first transmission characteristic to transmit the service data.

[0179] For example, if the first parameter corresponding to the first identifier is the reliability identifier, and the parameter value of the reliability identifier is [0.2, 0.5], and the parameter value of the reliability identifier corresponding to the second identifier is 0.3, the terminal device determines to use the first transmission characteristic to transmit service data.

[0180] For example, when the first parameter corresponding to the first identifier is the QoS identifier and the reliability identifier, and the parameter value of the QoS identifier is 5, and the parameter value of the reliability identifier is [0.2, 0.5], then when the parameter value of the QoS identifier corresponding to the second identifier is 5, and the parameter value of the reliability identifier is 0.3, the terminal device determines to use the first transmission characteristic to transmit service data.

[0181] In another example, in the present application, when the parameter value of any one of the one or more first parameters corresponding to the second identifier is the same as the parameter value of the first parameter of the one or more first parameters corresponding to the first identifier, it is determined that the parameter value of the first parameter corresponding to the second identifier is the same as the parameter value of the first parameter corresponding to the first identifier.

[0182] Exemplarily, the first parameter corresponding to the first identifier is the QoS identifier and the reliability identifier, and the parameter value of the QoS identifier is 5, and the parameter value of the reliability identifier is [0.2, 0.5]. The first parameter corresponding to the second identifier is the reliability identifier, and the parameter value of the reliability identifier corresponding to the second identifier is 0.4. The terminal device determines to use the first transmission characteristic to transmit service data.

[0183] like Fig.11 As shown, as another embodiment of the present application, the method provided by the present application also includes:

[0184] S107. The terminal device obtains a first threshold value corresponding to the wireless resource information and / or transmission characteristic information, wherein the first threshold value corresponds to the threshold value of one or more first parameters of the service data, and the one or more first parameters include: an identifier of the service type, an identifier of the packet priority PPPP, an identifier of the quality of service QoS, an identifier of the reliability, an identifier of the bearer, an identifier of the delay, an identifier of the terminal device speed, or an identifier of the transmission rate.

[0185] Exemplarily, the terminal device may establish a mapping relationship between wireless resource information and / or transmission characteristic information and a first threshold value corresponding to one or more first parameters to obtain a first threshold value corresponding to the wireless resource information and / or transmission characteristic information.

[0186] Accordingly, as another example of the present application, the terminal device determines to use the first transmission characteristic to transmit the service data, which can be implemented in the following manner:

[0187] S1033. The terminal device determines a second identifier corresponding to the service data, where the second identifier corresponds to parameter values ​​of one or more first parameters of the service data.

[0188] Specifically, the manner in which the terminal device obtains the second identifier can be referred to the description in the above embodiment, and this application will not elaborate on it here.

[0189] S1034. The terminal device determines to use the first transmission characteristic to transmit service data based on a relationship between a parameter value of any one of the one or more first parameters corresponding to the second identifier and a first threshold value.

[0190] Exemplarily, step S1034 in the present application can be implemented in the following manner: in one example, the terminal device determines that the parameter value of any one of the one or more first parameters corresponding to the second identifier is less than or equal to the first threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data.

[0191] Alternatively, in another example, when the terminal device determines that a parameter value of any one of the one or more first parameters corresponding to the service data is greater than or equal to a first threshold value, the terminal device determines to use the first transmission characteristic to transmit the service data.

[0192] like Fig.12 As shown, as another possible embodiment of the present application, the method provided by the present application also includes:

[0193] S108. The terminal device obtains a congestion level threshold value corresponding to the wireless resource information and / or transmission characteristic information.

[0194] The degree of congestion in the present application may refer to the channel busy ratio (CBR) corresponding to the transmission resource pool used by the terminal device or the transmission carrier frequency currently used, and may be expressed by signal strength, for example, by reference signal receiving power (RSRP) and received signal strength indication (RSSI), that is, the signal strength measured by the terminal device in the transmission resource pool used or the transmission carrier frequency used.

[0195] Based on step S108, as another example of the present application, the terminal device in the present application determines to use the first transmission characteristic to transmit the service data, which can be implemented by the following steps S1035 or S1036:

[0196] S1035. The terminal device determines to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level threshold value.

[0197] Exemplarily, step S1035 can be implemented in the following manner: the terminal device determines that the congestion level of the transmission resource pool used is less than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data; or, the terminal device determines that the congestion level of the transmission resource pool used is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data.

[0198] S1036. The terminal device determines to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission carrier frequency used by the terminal device and the congestion level threshold value.

[0199] Exemplarily, step S1036 can be implemented in the following manner: the terminal device determines that the congestion level of the transmission carrier used is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data; or, the terminal device determines that the congestion level of the transmission carrier used is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit service data.

[0200] The transmission resource pool or transmission carrier frequency used by the terminal device described in the present application may be a transmission resource pool or transmission carrier frequency corresponding to the service data, or may be a transmission resource pool or transmission carrier frequency used to transmit service data.

[0201] As another embodiment of the present application, Fig.13 As shown, the method provided by the present application also includes:

[0202] S109. The terminal device obtains a congestion level range corresponding to the wireless resource information and / or transmission characteristic information.

[0203] Based on step S109, as another example, the terminal device in the present application determines to use the first transmission characteristic to transmit service data by the following S1037 or S1038:

[0204] S1037. The terminal device determines to use the first transmission characteristic to transmit service data based on the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level range.

[0205] Exemplarily, step S1037 in the present application may be implemented in the following manner: the terminal device determines that the congestion level of the transmission resource pool used is within a congestion level range, and the terminal device determines to use the first transmission characteristic to transmit service data.

[0206] S1038. The terminal device determines to use the first transmission characteristic to transmit service data based on the relationship between the congestion level and the congestion level range of the transmission carrier frequency used by the terminal device.

[0207] Exemplarily, step S1038 in the present application may be implemented in the following manner: the terminal device determines that the congestion level of the used transmission carrier frequency is within a congestion level range, and the terminal device determines to use the first transmission characteristic to transmit the service data.

[0208] As another possible embodiment of the present application, the method provided by the present application further includes:

[0209] S110. The terminal device obtains a channel load threshold corresponding to the wireless resource information and / or transmission characteristic information.

[0210] The channel load may be a constant bit rate (CBR), a reference signal receiving power (RSRP), or a received signal strength indication (RSSI).

[0211] In another example, based on step S110, the terminal device in the present application determines to use the first transmission characteristic to transmit service data by the following steps:

[0212] S1039. The terminal device determines to use the first transmission characteristic to transmit service data according to a mapping relationship between the channel load and the channel load threshold.

[0213] Exemplarily, in the present application, a mapping relationship may be established between the channel load used to transmit business data and the transmission mode. Here, based on the mapping relationship between the channel load and the channel load threshold, it can be determined which transmission mode to use to transmit the business data.

[0214] Exemplarily, step S1039 in the present application can be implemented in the following manner: if the terminal device determines that the channel load is greater than or equal to the channel load threshold, it determines to use the first transmission characteristic to transmit the service data. Or if the terminal device determines that the channel load for transmitting the service data is less than or equal to the channel load threshold, it determines to use the first transmission characteristic to transmit the service data.

[0215] It can be understood that the above-mentioned channel load threshold can be a channel load range. Therefore, when the terminal device determines that the channel load for transmitting service data is within the channel load threshold range, it determines to use the first transmission characteristic to transmit the service data. In addition, in the present application, the terminal device can also obtain the mapping relationship between the specified QoS flow or the specified QoS flow ID and the wireless resource information and / or the transmission characteristic information. Therefore, when the terminal device determines that the QoS flow of the service data is the same as the specified QoS flow, or the QoS flow ID is the same as the specified QoS flow ID, the terminal device determines to use the first transmission characteristic to transmit the service data.

[0216] Exemplarily, in this application, which transmission characteristics are used to transmit service data can be indicated in the following manner:

[0217] For example, for the support of 64-QAM in the first transmission mode, 1 bit can be selected as the indication bit in the reserved bit of the control information (scheduling assign, SA) of the service data. When the bit is set to 1, it indicates that the service data needs to be transmitted using 64-QAM. Correspondingly, other transmission characteristics can also use this method, using 1 bit as an indication, or using a value of two or more bit fields as an indication of a certain transmission characteristic. The specific implementation method is not limited. In this way, the terminal device can identify which transmission characteristics are used for the received service data to be transmitted according to the corresponding indication bit.

[0218] The content of SA mainly includes the MCS of the information load, the starting PRB, the occupied PRB and other information. Specifically, the receiving end first blindly decodes the SA, and after decoding the SA, parses the data content according to the content of SA and the specified MCS on the specified time-frequency resources.

[0219] In addition, as another embodiment of the present application, the method provided by the present application also includes: the terminal device determines whether to use the first transmission characteristic for service transmission based on whether there is a signal transmitted with a transmission characteristic supported by the second transmission mode in the used transmission carrier frequency or the used transmission resource pool.

[0220] Exemplarily, the terminal device determines whether to use the first transmission characteristic for service transmission according to whether there is a signal transmitted with the transmission characteristic supported by the second transmission mode in the transmission carrier frequency used by the terminal device or the transmission resource pool used by the terminal device, and can be implemented by the following steps S111 or S112:

[0221] S111. Before transmitting service data, the terminal device measures whether there is a terminal device supporting the second transmission mode for service transmission, or the signal of the terminal device supporting the second transmission mode is greater than the first threshold, then the terminal device determines not to use the first transmission characteristic to transmit service data.

[0222] Exemplarily, the terminal device monitors the transmission carrier frequency used or the transmission resource pool used to receive and attempt to parse the received signal, and measures the received signal strength. If the terminal device determines that the received signal is parsed successfully and the signal is transmitted using the transmission characteristics supported by the second transmission mode, and the signal strength is greater than or equal to the first threshold, the terminal device does not trigger the use of the first transmission characteristics to transmit service data.

[0223] Or, S112, before transmitting service data, if the terminal device measures that the service data signal sent by the terminal device supporting the second transmission mode is less than a first threshold, or does not measure the service data signal sent by the terminal device supporting the second transmission mode, then the service data is transmitted using the first transmission characteristic.

[0224] Exemplarily, if the terminal device fails to parse the transmission carrier frequency or the transmission resource pool in use, or succeeds in parsing but the signal strength is less than or equal to the first threshold, the terminal device may use the first transmission characteristic to transmit service data in the transmission carrier frequency or the transmission resource pool in use.

[0225] It should be noted that in the present application, a preconfigured transmission mode can be determined for the terminal device. When the configuration information of the transmission resource pool does not clearly indicate the transmission characteristics supported by the transmission resource pool or the configuration information of the transmission carrier frequency does not clearly indicate the transmission characteristics supported by the transmission carrier frequency, or the supported transmission characteristics cannot be determined based on the characteristics of the above-mentioned business data (PPP, etc.), the degree of channel congestion, etc., or the transmission mode or transmission characteristics supported by the business data flow are not configured, and there is no information such as business characteristics and the degree of channel congestion, then the terminal device (business flow) determines the preconfigured transmission mode as the second transmission mode.

[0226] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the interaction between various network elements. It can be understood that each network element, such as a terminal device. In order to achieve the above functions, it includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0227] The embodiment of the present application can divide the functional modules of the terminal device according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of dividing each functional module according to each function:

[0228] As an example, the processing module is a processor or a controller, the sending module is a transmitter, and the receiving module is a receiver. Fig.14 A simplified schematic diagram of a possible design structure of the terminal device involved in the above embodiment is shown. The terminal device includes a transmitter / receiver 1102 , a controller / processor 1103 , a memory 1104 and a communication unit 1101 .

[0229] The transmitter / receiver 1102 is used to support the sending and receiving of information / or data between the terminal device and other terminal devices or network devices. As an example, the transmitter / receiver 1102 uses the first transmission characteristic to transmit the service data on the direct link transmission resource, and the service data is transmitted to other terminal devices in the above embodiment via the antenna. On the downlink, the antenna receives the signaling or data transmitted by the network device or other terminal device in the above embodiment, for example, the first configuration information or other configuration information or service data. The transmitter / receiver 1102 receiver adjusts (for example, filters, amplifies, down-converts and digitizes, etc.) the signaling or data received from the antenna and provides input sampling. These units perform processing according to the wireless access technology adopted by the wireless access network (for example, the access technology of LTE and other evolved systems).

[0230] The controller / processor 1103 controls and manages the actions of the terminal device, and is used to execute the processing performed by the terminal device in the above-mentioned embodiment. For example, when the terminal device determines to use the first transmission characteristic to transmit the service data, the terminal device selects a direct link transmission resource from the first transmission resource set corresponding to the wireless resource information and / or other processes of the technology described in the present invention. As an example, the controller / processor 1103 is used to support the terminal device to execute Figure 7 Process S103, Fig. 9 Process S105 and S103, Fig.10 S1031 and S1032 in Fig.11 Process S1033 and S1304, Fig.12 Process S1038 in and Fig.13 The memory 1104 is used to store program codes and data for the terminal device 110.

[0231] The transmitter / receiver 1102 is used to support the terminal device to receive data / signaling sent by other terminal devices or network devices. As an example, the transmitter / receiver 1102 is used to support the terminal device to perform Figure 7 Processes S101 and S102 in Fig. 9 Processes S101 and S102 in Fig.10 Processes S101, S102 and S106, Fig.11 Processes S101, S102 and S107, Fig.12 S101 and S102 and S108 and Fig.13 Processes S101, S102 and S109.

[0232] As an example, the transmitter / receiver 1102 is used to support the terminal device to send data / signaling to other terminal devices or network devices. For example, as an example, the transmitter / receiver 1102 is used to support the terminal device to perform Figure 7 , Figures 9 to 13 Process S104 in .

[0233] As an example, the communication unit 1101 is used to support the terminal device to communicate with other terminal devices or network devices. Figure 7 Communicate with other terminal devices shown in FIG.

[0234] The controller / processor for executing the terminal device functions of the embodiments of the present invention may be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0235] The steps of the method or algorithm described in conjunction with the disclosure of the present invention can be implemented in a hardware manner, or can be implemented by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile hard disk, a CD-ROM or any other form of 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 can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a terminal device. Of course, the processor and the storage medium can also be present in the terminal device as discrete components.

[0236] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the present invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented using software, the functions may be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium may be any available medium that a general or special-purpose computer can access.

[0237] Fig.15 1 is a schematic diagram of the structure of a chip 150 provided in an embodiment of the present invention. The chip 150 includes at least one processor 1510 and an interface circuit 1530 .

[0238] Optionally, the chip 150 further includes a memory 1540, which may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510. A portion of the memory 1540 may also include a non-volatile random access memory (NVRAM).

[0239] In some embodiments, memory 1540 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: In an embodiment of the present invention, the corresponding operation is performed by calling the operation instruction stored in memory 1540 (the operation instruction may be stored in the operating system).

[0240] The processor 1510 controls the operation of the terminal device, and the processor 1510 may also be referred to as a central processing unit (CPU). The memory 1540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510. A portion of the memory 1540 may also include a non-volatile random access memory (NVRAM). In a specific application, the memory 1540, the interface circuit 1530, and the memory 1540 are coupled together through the bus system 1520, wherein the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for the sake of clarity, in Fig.15 Various buses are labeled as bus system 1520.

[0241] The method disclosed in the above embodiment of the present invention can be applied to the processor 1510, or implemented by the processor 1510. The processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 1510 or the instructions in the form of software. The above processor 1510 can be a general processor, a digital signal processor (digital signal processing, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field-programmable gate array (field-programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor to execute, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540 and completes the steps of the above method in combination with its hardware.

[0242] Optionally, the interface circuit 1530 is used to perform Figure 7 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 The steps of receiving and sending by the terminal device in the embodiment shown. The processor 1510 is used to execute Figure 7 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 The processing steps of the terminal device in the illustrated embodiment.

[0243] In the above embodiments, the instructions stored in the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product may be pre-written in the memory, or may be downloaded and installed in the memory in the form of software.

[0244] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server, or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server, or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server, a data center, etc. that includes one or more available media integration. Available media can be magnetic media, (e.g., floppy disk, hard disk, tape), optical media (e.g., DVD), or semiconductor media (e.g., solid state hard disk solid statedisk, SSD), etc.

[0245] On the one hand, a computer storage medium is provided, in which instructions are stored, and when the instructions are executed, a terminal device executes S101, S102, S106, S107, S108, S109, S110, S1012, S103, S105, S1051, S1052, S1053, S1054, S1031, S1032, S1033, S1034, S1035, S1036, S1037, S1038, S1039, S111, S1011, S112, and S104 in the embodiments. And / or other processes performed by the terminal device for the technology described herein.

[0246] In one aspect, a computer program product including instructions is provided, wherein the computer program product stores the instructions, and when the instructions are executed, a terminal device executes S101, S102, S106, S107, S108, S109, S110, S1012, S103, S105, S1051, S1052, S1053, S1054, S1055, S1056, S1031, S1032, S1033, S1034, S1035, S1036, S1037, S1038, S1039, S111, S1011, S112, and S104 in the embodiments. And / or other processes performed by the terminal device for the technology described herein.

[0247] On the one hand, a chip is provided, which is applied to a terminal device, the chip includes at least one processor and an interface circuit, the interface circuit and the at least one processor are interconnected through a line, and the processor is used to run instructions to execute S101, S102, S106, S107, S108, S109, S110, S1012, S103, S105, S1051, S1052, S1053, S1054, S1055, S1056, S1031, S1032, S1033, S1034, S1035, S1036, S1037, S1038, S1039, S111, S1011, S112, and S104 in the embodiments. And / or other processes performed by the terminal device for the technology described herein.

[0248] The various embodiments in the present application can be combined or referenced to each other according to the inherent logic of the technical solution to form new embodiments, which will not be elaborated here.

[0249] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0250] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0251] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0252] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0253] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0254] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0255] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A service transmission method, characterized in that: include: The terminal device obtains first configuration information, where the first configuration information includes wireless resource information and transmission characteristic information corresponding to the wireless resource information; The terminal device acquires a first identifier corresponding to the wireless resource information and / or the transmission characteristic information, where the first identifier corresponds to parameter values ​​of one or more first parameters of service data, and the one or more first parameters include an identifier of a service type; The terminal device acquires first service data; When the terminal device determines to use the first transmission characteristic to transmit the first service data, the terminal device selects a direct link transmission resource from the first transmission resource set corresponding to the wireless resource information; wherein the first transmission characteristic is a transmission characteristic supported by the transmission characteristic information; the terminal device determines to use the first transmission characteristic to transmit the first service data, including: The terminal device determines a second identifier corresponding to the first service data, where the second identifier corresponds to parameter values ​​of one or more first parameters of the first service data; When the terminal device determines that the parameter value of the first parameter corresponding to the second identifier is the same as the parameter value of the first parameter corresponding to the first identifier, the terminal device determines to use the first transmission characteristic to transmit the first service data; The terminal device transmits the first service data using the first transmission characteristic on the direct link transmission resource.

2. The method according to claim 1, characterized in that The wireless resource information is a first transmission carrier frequency identifier, the first configuration information includes the first transmission carrier frequency identifier and transmission characteristic information corresponding to the first transmission carrier frequency identifier, and when the terminal device determines to use the first transmission characteristic to transmit the first service data, before the terminal device selects a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information, the method further includes: The terminal device determines, according to the first transmission carrier frequency identifier, all available direct link transmission resources on the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier, and the terminal device determines all available direct link transmission resources of the first transmission carrier frequency as the first transmission resource set corresponding to the wireless resource information; or The terminal device determines, based on the first transmission carrier frequency identifier, a transmission resource pool used by the terminal device on the first transmission carrier frequency corresponding to the first transmission carrier frequency identifier; and the terminal device determines all direct link transmission resources on the used transmission resource pool as the first transmission resource set corresponding to the wireless resource information.

3. The method according to claim 1 or 2, characterized in that: The wireless resource information is a first transmission resource pool identifier, the first configuration information includes the first transmission resource pool identifier and transmission characteristic information corresponding to the first transmission resource pool identifier, and when the terminal device determines to use the first transmission characteristic to transmit the first service data, before the terminal device selects a direct link transmission resource from a first transmission resource set corresponding to the wireless resource information, the method includes: The terminal device determines the transmission resource pool corresponding to the first transmission resource pool identifier on the first transmission carrier frequency based on the first transmission resource pool identifier, and determines all available direct link transmission resources on the transmission resource pool corresponding to the first transmission resource pool identifier as the first transmission resource set corresponding to the wireless resource information.

4. The method according to claim 1 or 2, characterized in that: The first transmission characteristic is 64-phase quadrature amplitude modulation QAM, and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of the following information: first indication information, where the first indication information is used to indicate support for using 64-QAM; or, first modulation and coding scheme MCS configuration information, wherein the first MCS configuration information includes configuration information supporting the use of 64-QAM; or, Second MCS configuration information, the second MCS configuration information includes one or more of a first minimum MCS index and a first maximum MCS index used by the terminal device, wherein the MCS index range determined by one or more of the first minimum MCS index and the first maximum MCS index in the first MCS index table includes an MCS index that supports the use of 64-QAM.

5. The method according to claim 1 or 2, characterized in that: The first transmission characteristic uses a second MCS index table, and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of a second minimum MCS index and a second maximum MCS index used by the terminal device, wherein the second MCS index table is an MCS index table that supports the use of 64-QAM in the direct link transmission resource; The terminal device transmits the first service data using the first transmission characteristic on the direct link transmission resource, including: The terminal device selects a first MCS for the first service data in the second MCS index table according to the second minimum MCS index and / or the second maximum MCS index; The terminal device transmits the first service data using the first MCS on the direct link transmission resource, and carries second MCS index table indication information and an index corresponding to the first MCS in corresponding direct link control information.

6. The method according to claim 1 or 2, characterized in that: The first transmission characteristic is transmit diversity, and the transmission characteristic information corresponding to the first transmission characteristic includes one or more of the following information: second indication information, where the second indication information is used to indicate support for use of transmit diversity; or, Transmit diversity configuration information, wherein the transmit diversity configuration information includes one or more of an antenna port number identifier, a codebook subset constraint identifier, a transmit antenna selection identifier, a maximum layer number identifier, or an optional codebook enable identifier.

7. The method according to claim 1 or 2, characterized in that: The method further comprises: The terminal device acquires a first threshold value corresponding to the wireless resource information and / or the transmission characteristic information, where the first threshold value corresponds to a threshold value of one or more first parameters of service data, where the one or more first parameters include: one or more of a service type identifier, a packet priority PPPP, a quality of service QoS identifier, a reliability identifier, a bearer identifier, a delay identifier, or a transmission rate identifier; The terminal device determines to use a first transmission characteristic to transmit the first service data, including: The terminal device determines a second identifier corresponding to the first service data, where the second identifier corresponds to parameter values ​​of one or more first parameters of the first service data; The terminal device determines to use the first transmission characteristic to transmit the first service data according to the relationship between the parameter values ​​of one or more first parameters corresponding to the second identifier and the first threshold value.

8. The method according to claim 7, characterized in that The terminal device determines, according to the second identifier, a relationship between a parameter value of any one of the one or more first parameters corresponding to the second identifier and the first threshold value, including: The terminal device determines that the parameter value of any one of the one or more first parameters corresponding to the second identifier is less than or equal to the first threshold value, and the terminal device determines to use the first transmission characteristic to transmit the first service data; or When the terminal device determines that the parameter value of any one of the one or more first parameters corresponding to the first service data is greater than or equal to the first threshold value, the terminal device determines to use the first transmission characteristic to transmit the first service data.

9. The method according to claim 1 or 2, characterized in that: The method further comprises: The terminal device obtains a congestion level threshold value corresponding to the wireless resource information and / or the transmission characteristic information; The terminal device determines to use a first transmission characteristic to transmit the first service data, including: The terminal device determines to use the first transmission characteristic to transmit the first service data according to the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level threshold value; or, The terminal device determines to use the first transmission characteristic to transmit the first service data according to the relationship between the congestion level of the transmission carrier frequency used by the terminal device and the congestion level threshold value.

10. The method according to claim 9, characterized in that The terminal device determines, according to a relationship between a congestion level of a transmission resource pool used by the terminal device and the congestion level threshold, to use the first transmission characteristic to transmit the first service data, including: The terminal device determines that the congestion level of the used transmission resource pool is less than or equal to the congestion level threshold, and the terminal device determines to use the first transmission characteristic to transmit the first service data; or, The terminal device determines that the congestion level of the used transmission resource pool is greater than or equal to the congestion level threshold, and the terminal device determines to use the first transmission characteristic to transmit the first service data.

11. The method according to claim 9, characterized in that The terminal device determines, according to a relationship between a congestion level of a transmission carrier frequency used by the terminal device and the congestion level threshold, to use the first transmission characteristic to transmit the first service data, including: The terminal device determines that the congestion level of the used transmission carrier frequency is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit the first service data; or, The terminal device determines that the congestion level of the used transmission carrier frequency is greater than or equal to the congestion level threshold value, and the terminal device determines to use the first transmission characteristic to transmit the first service data.

12. The method according to claim 1 or 2, characterized in that: The method further includes: the terminal device acquires a congestion degree range corresponding to the wireless resource information and / or the transmission characteristic information, and accordingly, The terminal device determines to use a first transmission characteristic to transmit the first service data, including: The terminal device determines to use the first transmission characteristic to transmit the first service data according to the relationship between the congestion level of the transmission resource pool used by the terminal device and the congestion level range; or, The terminal device determines to use the first transmission characteristic to transmit the first service data according to the relationship between the congestion level of the transmission carrier frequency used by the terminal device and the congestion level range.

13. The method according to claim 12, characterized in that The terminal device determines, according to a relationship between a congestion level of a transmission resource pool used by the terminal device and the congestion level range, to use the first transmission characteristic to transmit the first service data, including: The terminal device determines that the congestion level of the transmission resource pool to be used is within the congestion level range, and the terminal device determines to use the first transmission characteristic to transmit the first service data; or, The terminal device determines, according to a relationship between a congestion level of a transmission carrier frequency used by the terminal device and the congestion level range, to use the first transmission characteristic to transmit the first service data, including: The terminal device determines that the congestion level of the used transmission carrier frequency is within the congestion level range, and the terminal device determines to use the first transmission characteristic to transmit the first service data.

14. A communication device, characterized in that: Comprising means for performing the method as claimed in any one of claims 1 to 13.

15. A communication device, characterized in that: It includes a processor and a communication interface, wherein the communication interface is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in any one of claims 1 to 13 through logic circuits or execution code instructions.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 1 to 13 is implemented.

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