Method and apparatus for wireless communication and communication device

Abstract

Provided are a method and device for wireless communication, the method comprising: determining a first mapping relationship, the first mapping relationship being used to indicate a first transmission mode corresponding to at least one service, the first transmission mode corresponding to a first sidelink resource configuration and / or a first sidelink discontinuous reception (DRX) configuration, the at least one service being associated with a sidelink; and sending, in a third transmission mode, related information of the first mapping relationship, the third transmission mode corresponding to a second sidelink resource configuration and / or a second sidelink DRX configuration, so that a communication device can receive or send a service using the first transmission mode according to the first mapping relationship, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to methods, apparatus, and devices for wireless communications. Background Technology

[0002] Currently, a communication technology based on sidelink is known. For example, terminal devices can transmit services directly through this sidelink without the need for network equipment such as base stations, which not only reduces service latency but also reduces the burden on network equipment such as base stations.

[0003] However, in this communication technology, the receiving end needs to monitor wireless resources in real time to ensure that it can receive services, which increases the power consumption of the communication equipment.

[0004] How to reduce the energy consumption of communication equipment in this sidelink-based communication technology has become an urgent problem to be solved in the industry. Summary of the Invention

[0005] This application provides a wireless communication method, apparatus, and device that can reduce the energy consumption of the communication device in the communication process based on the side link.

[0006] In a first aspect, a wireless communication method is provided, the method being applied to a first communication device, the method comprising: receiving first information transmitted by a second communication device, the first information being used to determine (or indicate) a transmission mode of a first service in at least one transmission mode, the at least one transmission mode including a first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception (DRX) configuration; receiving the first service from the second communication device according to the first information; or transmitting the first service to the second communication device according to the first information.

[0007] In this application, the first transmission mode may include a transmission mode that supports energy-saving features.

[0008] In one implementation, the first transmission mode corresponds to a first side traversal resource configuration. For example, the resources in the first side traversal resource configuration may be time-discontinuous resources, that is, the first side traversal resource configuration may include a portion of the time-domain resources used to carry the side traversal.

[0009] In another implementation, the first transmission mode corresponds to the first side link DRX configuration.

[0010] According to the solution of this application, by receiving first information sent by a second communication device, wherein the first information is used to determine to transmit services using a first transmission mode, and by enabling the first transmission mode to support user energy-saving features, for example, the first transmission mode corresponds to discontinuous resource configuration or DRX configuration, the energy consumption of both communicating parties can be effectively reduced.

[0011] The phrase "the first information is used to determine the transmission of services using the first transmission mode" can also be understood as "the first information is used to determine the mode used for transmitting services".

[0012] Alternatively, "the first information is used to determine whether to use the first transmission mode to transmit the service" can also be understood as the first information being used to determine whether to use the first transmission mode to transmit the service.

[0013] In one implementation, the first communication device is the receiving end of the first service, and the second communication device is the sending end of the first service.

[0014] As an example and not a limitation, the first information includes at least one of the following: the service identifier of the first service, the source identity (SRC ID) of the first service, the destination identity (DST ID) of the first service, and the transport configuration (Tx profile) of the first service.

[0015] For example, the Destination Identifier (DST ID) includes either the Layer 2 Destination Identifier (Destination L2 ID) or the Layer 1 Destination Identifier (Destination L1 ID), and the Source Identifier (SRC ID) includes either the Layer 2 Source Identifier (Source L2 ID) or the Layer 1 Source Identifier (Source L1 ID).

[0016] In one implementation, the first service includes the service that the first communication device is configured to transmit, and / or the first service includes the service that the first communication device is interested in.

[0017] For example, this service may include, but is not limited to, the transmission of information such as vehicle location, speed, and direction.

[0018] In one implementation, when the first information includes the transmission configuration (Tx profile) of the first service, receiving the first service from the second communication device according to the first information includes: receiving the first service from the second communication device in a transmission mode corresponding to the transmission configuration of the first service.

[0019] In this application, different Tx profiles can correspond to different transmission configurations (specifically, transmission configurations with different energy-saving characteristics).

[0020] For example, the transport configuration may include, but is not limited to, versions (Release, R) 14, R15, R16, R17, or versions after R17.

[0021] Furthermore, in one implementation, R17 can be configured for transmissions that have (or support) terminal energy-saving features.

[0022] In one possible implementation, releases after R17 may include transport configurations that support terminal power-saving features. Alternatively, releases after R17 may also include transport configurations that do not support terminal power-saving features.

[0023] Furthermore, R14, R15, and R16 can be transmission configurations that do not have terminal energy-saving features.

[0024] As an example and not a limitation, "supporting terminal energy-saving features" in this application can be understood as supporting energy-saving technologies such as DRX or dedicated resource configuration technology.

[0025] In addition, in this application, communication devices that support R17 (or communication devices of device type R17) may support (or be compatible with) at least one of the transmission configurations of R16, R15, and R14.

[0026] It should be noted that in this application, "R17" can also be understood as a device type, that is, a communication device of device type R17 can support the transmission configuration of R17.

[0027] That is, in this application, "R17" can be interpreted differently in different contexts, namely, it can be interpreted as device type or transmission configuration.

[0028] Similarly, R14, R15, and R16 can also be understood as device types.

[0029] In one implementation, when the transmission configuration of the first service is a first transmission configuration, the first service is received in the first transmission mode, wherein the first transmission configuration includes a transmission configuration with power-saving features of the terminal device (UE).

[0030] The phrase "the first transmission configuration includes a transmission configuration that has (or supports) the power-saving features of the terminal device (UE)" can be understood as the first transmission configuration only including transmission configurations that have power-saving features of the terminal device.

[0031] For example, the first transmission configuration may include, but is not limited to, R17.

[0032] For example, the first transmission configuration can be a version after R17 that supports UE power-saving features.

[0033] In addition, "receiving the first service in the first transmission mode" can be understood as receiving the first service using the first transmission mode, or receiving the first service through the first transmission mode.

[0034] For example, when the transmission configuration of the first service is the second transmission configuration, the first service is received in the second transmission mode, where the second transmission configuration includes a transmission configuration that does not have the power-saving features of the terminal device (UE).

[0035] For example, the second transmission configuration may include, but is not limited to, one or more of R14, R15, or R16.

[0036] The second transmission mode may include, but is not limited to, alternative names for non-energy-saving transmission mode, normal or non-dedicated transmission mode, and is not limited here.

[0037] For example, when all of the aforementioned transmission configurations are set to the second transmission configuration, the first transmission mode is deenabled.

[0038] As an example and not a limitation, enabling the first transmission mode includes: not using the first transmission mode when receiving first-side cross-link services.

[0039] The first sidelink service includes at least one of the following services: sidelink multicast service, sidelink broadcast service, or sidelink unicast service.

[0040] In one implementation, receiving the first service from the second communication device based on the first information includes: determining a transmission mode for receiving the first service based on the number or proportion of second communication devices that send services under the first transmission configuration.

[0041] For example, when the number or proportion of second communication devices with the first transmission configuration corresponding to the first service is greater than or equal to a first threshold, the first service is received in the first transmission mode, and the first transmission configuration includes a transmission configuration with power saving characteristics of the terminal device (UE).

[0042] Alternatively, when the number or proportion of the second communication devices corresponding to the first transmission configuration is determined to be greater than or equal to the first threshold based on the first information, the first service is received in the first transmission mode. The first transmission configuration includes a transmission configuration with power saving characteristics of the terminal device (UE). The second communication device corresponding to the first transmission configuration is a communication device that determines the transmission configuration of the first service as the first transmission configuration.

[0043] In another implementation, the first information further includes the location information of the second terminal device, and the step of receiving the first service from the second communication device based on the first information includes: determining a transmission mode for receiving the first service based on the location of the second communication device that sends the service under the first transmission configuration.

[0044] For example, when the distance between the second communication device and the first communication device is greater than or equal to the second threshold, the first service is received in the first transmission mode, and the first transmission configuration includes a transmission configuration with power saving characteristics of the terminal device (UE).

[0045] Alternatively, when it is determined from the first information that the distance between the second communication device corresponding to the second transmission configuration and the first communication device is greater than or equal to the second threshold, the first service is received in the first transmission mode. The first transmission configuration includes a transmission configuration with UE power-saving features, the second transmission configuration includes a transmission configuration without UE power-saving features, and the second communication device corresponding to the second transmission configuration is the communication device that determines the transmission configuration of the first service as the second transmission configuration.

[0046] Optionally, receiving the first service from the second communication device based on the first information includes: determining a transmission mode for receiving the first service based on the number or proportion of second communication devices that send services in the first transmission mode.

[0047] Specifically, when the number or proportion of second communication devices sending services in the first transmission mode is greater than or equal to a third threshold, the first service is received in the first transmission mode.

[0048] Optionally, the first communication device receiving the first service from the second communication device based on the first information includes: determining a transmission mode for receiving the first service based on the location of the second communication device that sends the service in the first transmission mode.

[0049] Specifically, when the distance between the second communication device, which is not transmitting services in the first transmission mode, and the first communication device is greater than or equal to the fourth threshold, the first service is received in the first transmission mode.

[0050] Optionally, receiving the first service in the first transmission mode includes: determining a transmission mode for receiving the first service based on the condition that the first device can accept some or all of the data of the first service that cannot be received.

[0051] Specifically, when the first service meets the first condition, the first service is received in the first transmission mode, wherein the first condition is used to determine that the first communication device can accept only part of the data of the first service when receiving the first service, or the first condition is used to determine that the first communication device can accept data of the first service that is not received when receiving the first service.

[0052] According to the solution of this application, by receiving the first information sent by the second communication device, the first communication device can receive or send services using the first transmission mode according to the first information, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0053] Optionally, the first communication device is the sending end of the first service, and the second communication device is the receiving end of the first service.

[0054] Optionally, the first information includes at least one of the following: the second communication device's ability to support the first transmission mode, the device type of the second communication device, the second communication device's request to use the first transmission mode, and the device identifier of the second communication device.

[0055] The device identifier of the second communication device includes the Layer 2 ID of the second communication device, the Source RC ID of the second communication device, the member ID of the second terminal device, and the local index of the second terminal device.

[0056] Optionally, sending the first service to the second communication device based on the first information includes: determining the transmission mode for sending the first service based on the number or proportion of second terminal devices that support or request the use of the first transmission mode.

[0057] Specifically, when the number or proportion of second terminal devices that support or request the use of the first transmission mode is greater than or equal to a fifth threshold, the first service is sent using the first transmission mode; or, when the number or proportion of second terminal devices that support or request the use of the first transmission mode is greater than or equal to a sixth threshold, and the transmission configuration of the first service is a first transmission configuration, the first service is sent using the first transmission mode.

[0058] The first communication device sends a first service to the second communication device based on the first information, including: determining the transmission mode for sending the first service based on the number or proportion of second terminal devices corresponding to the first transmission configuration of the device type.

[0059] Specifically, when the number or proportion of second terminal devices corresponding to the device type of the first transmission configuration is greater than or equal to the seventh threshold, the first service is sent using the first transmission mode, and the first transmission configuration includes a transmission configuration with power saving characteristics of the terminal device UE; or, when the number or proportion of second terminal devices corresponding to the device type of the first transmission configuration is greater than or equal to the eighth threshold, and the transmission configuration of the first service is the first transmission configuration, the first service is sent using the first transmission mode.

[0060] The device type corresponding to the first transmission configuration indicates that the device type is R17. In particular, R17 can be interpreted differently in different contexts, that is, it can be interpreted as device type or transmission configuration.

[0061] In other words, "device type corresponds to first transmission configuration" can be understood as the device type being the first transmission configuration.

[0062] Optionally, the method further includes: sending second information, the second information being used to instruct the first communication device to send the first service using the first transmission mode.

[0063] Optionally, receiving the first information sent by the second communication device includes: receiving the first information in the first transmission mode.

[0064] The step of receiving the first information in the first transmission mode includes: receiving the first information in a first control information transmission mode, wherein the first control information transmission mode is a transmission mode used for transmitting control information in the first transmission mode.

[0065] Optionally, receiving the first service from the second communication device according to the first information includes: receiving the first service using the first side-link DRX configuration in the resource pool corresponding to the first side-link resource configuration; or, sending the first service to the second communication device according to the first information includes: sending the first service using the first side-link DRX configuration in the resource pool corresponding to the first side-link resource configuration.

[0066] Optionally, receiving the first service from the second communication device according to the first information includes: receiving the first service using the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration; or, sending the first service to the second communication device according to the first information includes: sending the first service using the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0067] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0068] Optionally, the first transmission mode includes a first data information transmission mode for transmitting data, and / or a first control information transmission mode for transmitting control information.

[0069] Optionally, the first transmission mode is indicated by the network device, or the first transmission mode is pre-configured, or the first transmission mode is specified by the protocol.

[0070] Secondly, a wireless communication method is provided, applied to a second communication device. The method includes: sending first information to a first communication device, the first information being used to determine a transmission mode of a first service from at least one transmission mode, the at least one transmission mode including a first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception (DRX) configuration; sending the first service to the first communication device according to the first information; or receiving the first service from the first communication device according to the first information.

[0071] According to the solution of this application, by sending first information to a first communication device, wherein the first information is used to determine to transmit services using a first transmission mode, the first transmission mode corresponding to the first side crosslink resource configuration and / or the first side crosslink discontinuous reception DRX configuration, the first communication device can receive or send services using the first transmission mode according to the first information, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0072] Sending the first service to the first communication device according to the first information includes: sending the first service to the first communication device in a transmission mode corresponding to the transmission configuration of the first service.

[0073] The first transmission configuration includes only transmission configurations with energy-saving features for terminal devices.

[0074] Optionally, the first communication device is the receiving end of the first service, and the second communication device is the sending end of the first service.

[0075] The first message includes at least one of the following: the service identifier of the first service, the source identifier of the first service, the destination identifier of the first service, and the transmission configuration of the first service.

[0076] The destination identifier includes either a layer 2 destination identifier or a layer 1 destination identifier, and the source identifier includes either a layer 2 source identifier or a layer 1 source identifier.

[0077] Optionally, the first service includes the service that the second communication device is configured to transmit, and / or the first service includes the service that the second communication device is interested in.

[0078] For example, this service could include information such as vehicle location, speed, and direction of travel.

[0079] Optionally, sending the first service to the first communication device according to the first information includes: when the transmission configuration of the first service is a first transmission configuration, sending the first service in the first transmission mode, wherein the first transmission configuration includes a transmission configuration with power-saving features of the terminal device (UE); or, when the transmission configuration of the first service is a second transmission configuration, sending the first service in the second transmission mode, wherein the second transmission configuration includes a transmission configuration without power-saving features of the terminal device (UE); or, when the transmission configuration is the second transmission configuration, disabling the first transmission mode.

[0080] Sending the first service in the first transmission mode can also be described as sending the first service using the first transmission mode, or sending the first service through the first transmission mode.

[0081] The second transmission mode is a general term for non-energy-saving transmission mode, ordinary or non-dedicated transmission mode, and is not limited here.

[0082] Optionally, disabling the first transmission mode includes: not using the first transmission mode when sending the first side link service.

[0083] The first sidelink service includes at least one of the following services: sidelink multicast service, sidelink broadcast service, or sidelink unicast service.

[0084] According to the solution of this application, by sending first information to the first communication device, the first communication device can receive or send services using a first transmission mode based on the first information, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0085] Optionally, the first communication device is the sending end of the first service, and the second communication device is the receiving end of the first service.

[0086] Optionally, the first information includes at least one of the following: the second communication device's ability to support the first transmission mode, the device type of the second communication device, the second communication device's request to use the first transmission mode, and the device identifier of the second communication device.

[0087] Among them, the device type designated as R17 can support at least one of the transmission configurations of R17, R16, R15, and R14. In particular, R17 can be interpreted differently in different contexts; it can be interpreted as either a device type or a transmission configuration.

[0088] The device identifier of the second communication device includes the Layer 2 ID of the second communication device, the source identifier of the second communication device, the member identifier of the second terminal device, and the local index of the second terminal device.

[0089] Optionally, the method further includes: receiving second information, the second information being used to instruct the second communication device to receive the first service using the first transmission mode.

[0090] Optionally, sending the first information to the first communication device includes: sending the first information in the first transmission mode.

[0091] The step of sending the first information in the first transmission mode includes: sending the first information in a first control information transmission mode, wherein the first control information transmission mode is a transmission mode used for transmitting control information in the first transmission mode.

[0092] Optionally, sending the first service to the first communication device according to the first information includes: sending the first service using the first side-link DRX configuration in the resource pool corresponding to the first side-link resource configuration; or receiving the first service from the first communication device according to the first information includes: receiving the first service using the first side-link DRX configuration in the resource pool corresponding to the first side-link resource configuration.

[0093] Optionally, sending the first service to the first communication device according to the first information includes: under the first side link DRX configuration, using the resource pool corresponding to the first side link resource configuration to send the first service; or receiving the first service from the first communication device according to the first information includes: under the first side link DRX configuration, using the resource pool corresponding to the first side link resource configuration to receive the first service.

[0094] Optionally, receiving the first information sent by the second communication device includes: receiving the first information in the first transmission mode.

[0095] The step of receiving the first information in the first transmission mode includes: receiving the first information in a first control information transmission mode, wherein the first control information transmission mode is a transmission mode used for transmitting control information in the first transmission mode.

[0096] Optionally, receiving the first service from the second communication device according to the first information includes: receiving the first service using the first side-link DRX configuration in the resource pool corresponding to the first side-link resource configuration; or, sending the first service to the second communication device according to the first information includes: sending the first service using the first side-link DRX configuration in the resource pool corresponding to the first side-link resource configuration.

[0097] Optionally, receiving the first service from the second communication device according to the first information includes: receiving the first service using the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration; or, sending the first service to the second communication device according to the first information includes: sending the first service using the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0098] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0099] Optionally, the first transmission mode includes a first data information transmission mode for transmitting data, and / or a first control information transmission mode for transmitting control information.

[0100] Optionally, the first transmission mode is indicated by the network device, or the first transmission mode is pre-configured, or the first transmission mode is specified by the protocol.

[0101] Thirdly, a wireless communication method is provided, applied to a first communication device, the first communication device being a service transmitting device, the method comprising: determining a transmission configuration of a first service; and determining, from at least one transmission mode, a transmission mode used when transmitting the first service, based on the transmission configuration of the first service, wherein the at least one transmission mode includes a first transmission mode, the first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception (DRX) configuration.

[0102] In this application, the first transmission mode may include a transmission mode that supports energy-saving features.

[0103] In one implementation, the first transmission mode corresponds to a first side traversal resource configuration. For example, the resources in the first side traversal resource configuration may be time-discontinuous resources, that is, the first side traversal resource configuration may include a portion of the time-domain resources used to carry the side traversal.

[0104] In another implementation, the first transmission mode corresponds to the first side link DRX configuration.

[0105] According to the solution of this application, by determining the transmission configuration of the first service, and based on the transmission configuration of the first service, the transmission mode used when sending the first service is determined, wherein the at least one transmission mode includes a first transmission mode, the first transmission mode corresponding to the first side crosslink resource configuration and / or the first side crosslink discontinuous reception DRX configuration, which enables the communication device to send the service using the first transmission mode according to the transmission configuration of the service, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0106] Optionally, determining the transmission mode used when sending the first service from at least one transmission mode according to the transmission configuration of the first service includes: when the transmission configuration of the first service is a second transmission configuration, determining the transmission mode used when sending the first service as the second transmission mode, wherein the second transmission configuration includes a transmission configuration without power-saving features of the terminal device (UE); or, when the transmission configuration of the first service is a first transmission configuration, determining the transmission mode used when sending the first service as the first transmission mode, wherein the first transmission configuration includes a transmission configuration with power-saving features of the terminal device (UE); or, when the transmission configuration of the first service is the second transmission configuration, disabling the first transmission mode; or, when the transmission configuration of the first service is not the first transmission configuration, disabling the first transmission mode.

[0107] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0108] Optionally, the first transmission mode includes a first data information transmission mode for transmitting data, and / or a first control information transmission mode for transmitting control information.

[0109] Optionally, the first transmission mode is indicated by the network device, or the first transmission mode is pre-configured, or the first transmission mode is specified by the protocol.

[0110] Fourthly, a wireless communication method is provided, applied to a second communication device, the second communication device being a receiving end device for a service, the method comprising: determining a transmission configuration of a first service; and determining, from at least one transmission mode, a transmission mode to be used when receiving the first service, based on the transmission configuration of the first service, wherein the at least one transmission mode includes a first transmission mode, the first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception (DRX) configuration.

[0111] According to the solution of this application, by determining the transmission configuration of the first service, and based on the transmission configuration of the first service, the transmission mode used when receiving the first service is determined, wherein the at least one transmission mode includes a first transmission mode, the first transmission mode corresponding to the first side crosslink resource configuration and / or the first side crosslink discontinuous reception DRX configuration, which enables the communication device to receive the service using the first transmission mode according to the transmission configuration of the service, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0112] Optionally, determining the transmission mode used for receiving the first service from at least one transmission mode according to the transmission configuration of the first service includes: when the transmission configuration of the first service is a second transmission configuration, determining the transmission mode used for receiving the first service as the second transmission mode, wherein the second transmission configuration includes a transmission configuration without power-saving features of the terminal device (UE); or, when the transmission configuration of the first service is a first transmission configuration, determining the transmission mode used for receiving the first service as the first transmission mode, wherein the first transmission configuration includes a transmission configuration with power-saving features of the terminal device (UE); or, when the transmission configuration of the first service is the second transmission configuration, disabling the first transmission mode; or, when the transmission configuration of the first service is not the first transmission configuration, disabling the first transmission mode.

[0113] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0114] Optionally, the first transmission mode includes a first data information transmission mode for transmitting data, and / or a first control information transmission mode for transmitting control information.

[0115] Optionally, the first transmission mode is indicated by the network device, or the first transmission mode is pre-configured, or the first transmission mode is specified by the protocol.

[0116] Fifthly, a wireless communication method is provided, comprising: determining a first mapping relationship, the first mapping relationship being used to indicate a first transmission mode corresponding to at least one service, the first transmission mode corresponding to a first sidelink resource configuration and / or a first sidelink discontinuous reception DRX configuration, the at least one service being associated with a sidelink; and transmitting relevant information of the first mapping relationship in a third transmission mode, the third transmission mode corresponding to a second sidelink resource configuration and / or a second sidelink DRX configuration.

[0117] The “related information of the first mapping relationship” can also be called the information of the first mapping relationship or the information of the first mapping relationship. That is, the related information of the first mapping relationship is used to determine (or indicate) the first mapping relationship.

[0118] In this application, the first transmission mode may include a transmission mode that supports energy-saving features.

[0119] In one implementation, the first transmission mode corresponds to a first side traversal resource configuration. For example, the resources in the first side traversal resource configuration may be time-discontinuous resources, that is, the first side traversal resource configuration may include a portion of the time-domain resources used to carry the side traversal.

[0120] In another implementation, the first transmission mode corresponds to the first side link DRX configuration.

[0121] According to the solution of this application, by determining a first mapping relationship, which is used to indicate a first transmission mode corresponding to at least one service, the first transmission mode corresponds to a first side link resource configuration and / or a first side link discontinuous reception DRX configuration, and the at least one service is associated with the side link; and in a third transmission mode, sending the first mapping relationship to the communication device enables the communication device to receive or send services using the first transmission mode according to the first mapping relationship, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0122] In the third transmission mode, sending the first mapping relationship can also be described as sending the first mapping relationship using the first transmission mode, or sending the first mapping relationship through the first transmission mode.

[0123] The first transmission mode and the third transmission mode may be the same or different, and this application does not specifically limit them.

[0124] Optionally, at least two of the at least one service correspond to the same first transmission mode.

[0125] Specifically, the at least two services use the same sidelink resource configuration and / or sidelink discontinuous reception DRX configuration in the same first transmission mode;

[0126] Optionally, at least two of the at least one services correspond to different first transmission modes.

[0127] Specifically, the sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two services in the different first transmission modes have overlapping portions; or, the sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two first services in the different first transmission modes do not overlap.

[0128] In one implementation, determining the first mapping relationship includes: obtaining the first mapping relationship from a network device.

[0129] In another implementation, determining the first mapping relationship includes: determining the first mapping relationship based on the second information (or attribute information) of the at least one service and the second mapping relationship, wherein the second mapping relationship is used to indicate the first transmission mode corresponding to at least one piece of second information.

[0130] Alternatively, the first mapping relationship may be pre-configured, for example, pre-configured by the terminal device at the factory.

[0131] For example, the second information includes at least one of the following: Quality of Service profile (QoS profile), congestion rate of resources used by the service (e.g., Channel BusyRatio (CBR)) or traffic pattern.

[0132] The second mapping relationship is indicated by the network device.

[0133] Alternatively, the second mapping relationship is pre-configured.

[0134] Alternatively, the second mapping relationship is defined by the protocol.

[0135] In this case, the relevant information of the first mapping relationship includes the attribute information of the at least one service.

[0136] Furthermore, the relevant information of the first mapping relationship also includes the second mapping relationship.

[0137] Optionally, in the third transmission mode, sending the first mapping relationship includes: sending fourth information in the third transmission mode, the fourth information being used to carry relevant information of the first mapping relationship, the fourth information including at least one of the following: sidelink multicast radio resource control message, sidelink broadcast radio resource control message, sidelink media access control unit, and sidelink system information.

[0138] Optionally, determining the first mapping relationship includes: determining the first transmission mode i∈[1,M] corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of the first transmission modes.

[0139] The identifier of the i-th service includes the destination identifier (DST ID) of the i-th service.

[0140] Specifically, determining the first transmission mode corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of the first transmission modes includes: determining the first transmission mode corresponding to the i-th service according to the following formula (i.e., an example of the first function).

[0141] n = x mode N

[0142] Wherein, the value of n is associated with the first transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of the first transmission modes.

[0143] Specifically, assuming the entire network specifies N sidelink resource configurations, or N sets of sidelink discontinuous reception DRX configurations are used for the first transmission mode, and the first communication device and the second communication device, i.e. the sending device and the receiving device calculate n = x mode N respectively, are the same, then the nth sidelink resource configuration or the sidelink discontinuous reception DRX configuration is used to receive or send the service, where the value of x is associated with the identifier of the service.

[0144] In this case, the relevant information of the first mapping relationship includes at least one of the following: the total number of the first transmission modes and a first function, wherein the identifier of the i-th service and the total number of the first transmission modes are the independent variables of the first function, and the first transmission mode corresponding to the i-th service is the dependent variable of the first function.

[0145] Optionally, the method further includes: determining an updated first mapping relationship; and in the third transmission mode, sending relevant information about the updated first mapping relationship.

[0146] The step of sending the updated first mapping relationship includes: sending the updated first mapping relationship according to a modification period and a repetition period, wherein the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship, and the repetition period is used to indicate the time interval between two adjacent transmission opportunities of the same first mapping relationship within the same modification period.

[0147] For example, if an update instruction is received in the previous modification cycle, the updated first mapping relationship will be received in the next modification cycle.

[0148] Optionally, the method further includes: determining the boundary frame number between two adjacent modification periods based on the modification period and the first offset value.

[0149] Specifically, the boundary frame number of the modification period is determined according to the following formula:

[0150] y mod z = w

[0151] Wherein, y is associated with the boundary frame number of the modification period, z is associated with the length of the modification period, and w is associated with the first offset value.

[0152] Where w is the offset of the first cycle among multiple first cycles relative to the reference time, which can be the 0th frame.

[0153] Optionally, the method further includes: sending third information, the third information being used to indicate that the first mapping relationship has been updated.

[0154] Specifically, the third information is carried within the first-side link control information (SCI). In particular, the first SCI is dedicated to carrying the third information.

[0155] Optionally, the third information is transmitted in a first modification period of a plurality of modification periods, and the updated first mapping relationship is transmitted in a second modification period. The first modification period is located before the second modification period, and the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship.

[0156] Optionally, in the third transmission mode, sending the first mapping relationship includes: in the resource pool corresponding to the second-side crosslink resource configuration, using the second-side crosslink DRX configuration, sending the first mapping relationship.

[0157] Specifically, in the third transmission mode, sending the first mapping relationship includes: under the second side link DRX configuration, using the resource pool corresponding to the second side link resource configuration, and sending the first mapping relationship.

[0158] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0159] Optionally, the first transmission mode includes a first data information transmission mode for transmitting data, and / or a first control information transmission mode for transmitting control information.

[0160] Optionally, the first transmission mode is indicated by the network device, or the first transmission mode is pre-configured, or the first transmission mode is specified by the protocol.

[0161] Optionally, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0162] Alternatively, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0163] In a sixth aspect, a wireless communication method is provided, which is performed in a second communication device including: in a third transmission mode, receiving information related to a first mapping relationship sent by a first communication device, the first mapping relationship being determined by the first communication device and used to indicate a first transmission mode corresponding to at least one service, the first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception DRX configuration, the third transmission mode corresponding to a second-side crosslink resource configuration and / or a second-side crosslink DRX configuration; determining, according to the first mapping relationship, a first transmission mode corresponding to a first service among the at least one service, wherein the first service includes services that the second communication device is configured to receive, and / or the first service includes services of interest to the second communication device.

[0164] According to the solution of this application, by determining a first mapping relationship, which is used to indicate a first transmission mode corresponding to at least one service, the first transmission mode corresponds to a first side link resource configuration and / or a first side link discontinuous reception DRX configuration, and the at least one service is associated with the side link; and in a third transmission mode, sending the first mapping relationship to the communication device enables the communication device to receive or send services using the first transmission mode according to the first mapping relationship, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0165] The at least one of the services is associated with the side link.

[0166] For example, the relevant information of the first mapping relationship includes the first mapping relationship itself.

[0167] Alternatively, the relevant information of the first mapping relationship includes the attribute information of the at least one service, and the method further includes: determining the first mapping relationship based on the attribute information of the at least one service and the second mapping relationship, wherein the second mapping relationship is used to indicate the first transmission mode corresponding to the at least one attribute information.

[0168] The attribute information includes at least one of the following: service quality configuration, congestion rate of resources used by the service, or service mode.

[0169] As an example and not a limitation, the second mapping is indicated by the network device.

[0170] Alternatively, the second mapping relationship is pre-configured.

[0171] Alternatively, the second mapping relationship is defined by the protocol.

[0172] In one implementation, the relevant information of the first mapping relationship also includes the second mapping relationship.

[0173] In the third transmission mode, sending the first mapping relationship can also be described as sending the first mapping relationship using the first transmission mode, or sending the first mapping relationship through the first transmission mode.

[0174] Optionally, at least two of the at least one services correspond to the same first transmission mode.

[0175] Specifically, the at least two first services use the same sidelink resource configuration and / or sidelink discontinuous reception DRX configuration in the same first transmission mode;

[0176] Optionally, at least two of the at least one services correspond to different first transmission modes.

[0177] Specifically, the sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two first services in the different first transmission modes have overlapping portions; or, the sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two first services in the different first transmission modes do not overlap.

[0178] Optionally, receiving information related to the first mapping relationship in the third transmission mode includes: receiving fourth information in the third transmission mode, the fourth information being used to carry the first mapping relationship, the fourth information including at least one of the following: a sidelink multicast radio resource control message, a sidelink broadcast radio resource control message, a sidelink media access control unit, and sidelink system information.

[0179] In one implementation, the relevant information of the first mapping relationship includes at least one of the following: the total number of the first transmission modes or the first function. Based on the identifier of the i-th service among the M services and the total number of the first transmission modes, the first transmission mode i∈[1,M], M≥1 corresponding to the i-th service is determined; wherein, the identifier of the i-th service and the total number of the first transmission modes are the independent variables of the first function, and the first transmission mode corresponding to the i-th service is the dependent variable of the first function.

[0180] The identifier of the i-th service includes the destination identifier of the i-th service.

[0181] For example, the first function includes the following formula:

[0182] n = x mode N

[0183] Wherein, the value of n is associated with the first transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of the first transmission modes.

[0184] Optionally, the method further includes: in the third transmission mode, receiving an updated first mapping relationship, wherein the updated first mapping relationship is determined by a first communication device.

[0185] Specifically, receiving the updated first mapping relationship includes: receiving the updated first mapping relationship according to a modification period and a repetition period, wherein the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship, and the repetition period is used to indicate the time interval between two adjacent reception opportunities of the same first mapping relationship within the same modification period.

[0186] The modification period is an integer multiple of the repetition period.

[0187] Optionally, the method further includes: receiving third information, the third information being used to indicate that the first mapping relationship has been updated.

[0188] Specifically, the third information is carried within the first-side link control information (SCI). In particular, the first SCI is dedicated to carrying the third information.

[0189] Optionally, the third information is transmitted in a first modification period of a plurality of modification periods, and the updated first mapping relationship is transmitted in a second modification period. The first modification period is located before the second modification period, and the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship.

[0190] Optionally, receiving the first mapping relationship in the third transmission mode includes: receiving the first mapping relationship in the resource pool corresponding to the second side link resource configuration using the second side link DRX configuration.

[0191] Specifically, in the third transmission mode, receiving the first mapping relationship includes: under the second side link DRX configuration, using the resource pool corresponding to the second side link resource configuration, and receiving the first mapping relationship.

[0192] In one implementation, the first transmission mode or the third transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0193] For example, the first transmission mode includes a data transmission mode for transmitting data.

[0194] The third transmission mode includes a control information transmission mode for transmitting control information.

[0195] As an example and not a limitation, the first transmission mode or the third transmission mode is indicated by the network device, or

[0196] The first transmission mode or the third transmission mode is pre-configured, or

[0197] The first transmission mode or the third transmission mode is specified by the protocol.

[0198] Optionally, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0199] Alternatively, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0200] A seventh aspect provides a wireless communication method applied in a service transmitting device, the method comprising: determining a first transmission mode corresponding to the i-th service based on the identifier of the i-th service among M services and the total number of first transmission modes, wherein the first transmission mode corresponds to a first side-link resource configuration and / or a first side-link discontinuous reception DRX configuration, wherein the M services are associated with a side-link, i∈[1,M], M≥1; and transmitting the i-th service according to the first transmission mode corresponding to the i-th service.

[0201] In this application, the first transmission mode may include a transmission mode that supports energy-saving features.

[0202] In one implementation, the first transmission mode corresponds to a first side traversal resource configuration. For example, the resources in the first side traversal resource configuration may be time-discontinuous resources, that is, the first side traversal resource configuration may include a portion of the time-domain resources used to carry the side traversal.

[0203] In another implementation, the first transmission mode corresponds to the first side link DRX configuration.

[0204] According to the solution of this application, by determining a first mapping relationship, which is used to indicate a first transmission mode corresponding to at least one service, the communication device can receive or send services using the first transmission mode according to the first mapping relationship, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0205] Optionally, the identifier of the i-th service includes the destination identifier of the i-th service.

[0206] Optionally, determining the first transmission mode corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of first transmission modes includes: determining the first transmission mode corresponding to the i-th service according to the following formula:

[0207] n = x mode N

[0208] Wherein, the value of n is associated with the first transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of the first transmission modes.

[0209] Optionally, at least two of the M services correspond to the same first transmission mode, wherein the at least two first services use the same sidelink resource configuration and / or sidelink discontinuous reception DRX configuration in the same first transmission mode.

[0210] Optionally, at least two of the M services correspond to different first transmission modes, wherein the sidelink resource configuration and / or sidelink discontinuous reception DRX configuration used by the at least two services in the different first transmission modes have overlapping parts;

[0211] Alternatively, the sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two services in the different first transmission modes do not overlap.

[0212] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0213] Optionally, the first transmission mode includes a data transmission mode for transmitting data.

[0214] Optionally, the first transmission mode is indicated by the network device.

[0215] Alternatively, the first transmission mode is pre-configured.

[0216] Alternatively, the first transmission mode is specified by the protocol.

[0217] Optionally, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0218] Alternatively, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0219] Eighthly, a wireless communication method is provided, applied in a receiving device of a service, the method comprising: determining a first transmission mode corresponding to the i-th service based on the identifier of the i-th service among M services and the total number of first transmission modes, wherein the first transmission mode corresponds to a first sidelink resource configuration and / or a first sidelink discontinuous reception DRX configuration, wherein the M services are associated with a sidelink, i∈[1,M], M≥1; and receiving the i-th service according to the first transmission mode corresponding to the i-th service.

[0220] In this application, the first transmission mode may include a transmission mode that supports energy-saving features.

[0221] In one implementation, the first transmission mode corresponds to a first side traversal resource configuration. For example, the resources in the first side traversal resource configuration may be time-discontinuous resources, that is, the first side traversal resource configuration may include a portion of the time-domain resources used to carry the side traversal.

[0222] In another implementation, the first transmission mode corresponds to the first side link DRX configuration.

[0223] According to the solution of this application, by determining a first mapping relationship, which is used to indicate a first transmission mode corresponding to at least one service, the communication device can receive or send services using the first transmission mode according to the first mapping relationship, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0224] Optionally, the identifier of the i-th service includes the destination identifier of the i-th service.

[0225] Optionally, determining the first transmission mode corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of first transmission modes includes: determining the first transmission mode corresponding to the i-th service according to the following formula:

[0226] n = x mode N

[0227] Wherein, the value of n is associated with the first transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of the first transmission modes.

[0228] Optionally, at least two of the M services correspond to the same first transmission mode, wherein the at least two first services use the same sidelink resource configuration and / or sidelink discontinuous reception DRX configuration in the same first transmission mode.

[0229] Optionally, at least two of the M services correspond to different first transmission modes, wherein the sidelink resource configuration and / or sidelink discontinuous reception DRX configuration used by the at least two services in the different first transmission modes have overlapping parts;

[0230] Alternatively, the sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two services in the different first transmission modes do not overlap.

[0231] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0232] Optionally, the first transmission mode includes a data transmission mode for transmitting data.

[0233] Optionally, the first transmission mode is indicated by the network device.

[0234] Alternatively, the first transmission mode is pre-configured.

[0235] Alternatively, the first transmission mode is specified by the protocol.

[0236] Optionally, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0237] Alternatively, when the first transmission mode corresponding to the first service corresponds to the first side link resource configuration and the first side link discontinuous reception DRX configuration, the first service is sent or received through the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0238] A ninth aspect provides a wireless communication method applied to a first communication device, the wireless communication method comprising: generating a first message, the first message being used to request the establishment of a sidelink; and sending the first message to a second communication device in a first transmission mode, the first transmission mode corresponding to a first sidelink resource configuration and / or a first sidelink discontinuous reception (DRX) configuration.

[0239] According to the solution of this application, by generating a first message requesting the establishment of a side link and sending the first message to the communication device in a first transmission mode, the communication device can receive or send signaling for requesting the establishment of a side link using the first transmission mode, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0240] Sending the first message to the second communication device in the first transmission mode can also be described as sending the first message to the second communication device using the first transmission mode, or sending the first message to the second communication device through the first transmission mode.

[0241] The first message may include a sidelink direct communication request; or, the first message may include a direct link establishment request.

[0242] Optionally, the method further includes: receiving a second message sent by the second communication device in the second transmission mode; and / or sending a third message to the second communication device in the second transmission mode;

[0243] Wherein, the second message and the third message are messages transmitted between the first communication device and the second communication device during the establishment of the side link.

[0244] The sidelink establishment process includes at least one of the following: sidelink direct link establishment, sidelink direct link security mode control, sidelink direct link authentication, sidelink UE capability transfering, sidelink RRC reconfiguration, sidelink unicast link establishment, sidelink unicast link security mode control, sidelink unicast link authentication, PC5 direct link establishment, PC5 direct link security mode control, PC5 direct link authentication, PC5 UE capability transfering, PC5 RRC reconfiguration, PC5 unicast link establishment, and PC5 unicast link security mode control. Modecontrol and PC5 unicast link authentication.

[0245] Optionally, the second message includes at least one of the following messages: Direct link Security Mode Command, Direct link establishment accept, sidelink UE capability information, sidelink RRC reconfiguration complete, PC5 UE capability information, and PC5 RRC reconfiguration complete.

[0246] Furthermore, the third message includes at least one of the following messages: Direct Security Mode Complete, sidelink UE capability enquiry, sidelink RRC reconfiguration, PC5 UE capability enquiry, and PC5 RRC reconfiguration.

[0247] Optionally, the method further includes: receiving first information sent by the second communication device, the first information being used to indicate the second side link DRX configuration currently used by the second communication device.

[0248] Optionally, the method further includes: starting a timer after sending the first message; and maintaining an active state until the timer expires.

[0249] Optionally, the first message carries second information, which is used to indicate the third-side crosslink DRX configuration currently used by the first communication device.

[0250] Optionally, the method further includes: receiving a fourth message sent by the second communication device in the first transmission mode; and / or sending a fifth message to the second communication device in the first transmission mode;

[0251] The fourth and fifth messages are messages transmitted between the first and second communication devices during the establishment of the side link process.

[0252] The process of establishing a side link includes at least one of the following: side link unicast link establishment, side link unicast link security mode control, side link unicast link authentication, side link user capability exchange, side link radio resource reconfiguration, PC5 unicast link establishment, PC5 unicast link security mode control, PC5 unicast link authentication, PC5 user capability exchange, PC5 radio resource reconfiguration, PC5 unicast link establishment, PC5 unicast link security mode control, and PC5 unicast link authentication.

[0253] The fourth message includes at least one of the following messages: direct link security mode indication message, direct link establishment acceptance message, lateral user capability information, lateral link radio resource control reconfiguration completion message, lateral user capability information, and PC5 radio resource control reconfiguration completion message.

[0254] Furthermore, the fifth message includes at least one of the following messages: Direct Security Mode Completion Message, Sidelink User Capability Query Message, Sidelink Radio Resource Control Reconfiguration Message, and PC5 Radio Resource Control Reconfiguration Message.

[0255] Optionally, the method further includes: sending or receiving messages transmitted between the first communication device and the second communication device during the establishment of the side link process, based on status information.

[0256] Specifically, the current status information of the first transmission mode is determined, and the status information includes the CBR of the resource pool corresponding to the first transmission mode and / or the receiving performance of the configuration of the first transmission mode; when the current status information of the first transmission mode meets the preset conditions, a sixth message sent by the second communication device is received in the first transmission mode, and / or a seventh message is sent to the second communication device in the first transmission mode; and / or when the current status information of the first transmission mode does not meet the preset conditions, an eighth message sent by the second communication device is received in the second transmission mode, and / or a ninth message is sent to the second communication device in the second transmission mode.

[0257] The sixth message, the seventh message, the eighth message, or the ninth message are messages transmitted between the first communication device and the second communication device during the establishment of the side link process.

[0258] Optionally, when the CBR of the resource pool corresponding to the first transmission mode is less than or equal to the first threshold, and / or the reception performance of the configuration of the first transmission mode is greater than or equal to the second threshold, the sixth message includes all messages sent by the second communication device during the establishment of the side link, and / or when the CBR of the resource pool corresponding to the first transmission mode is less than or equal to the first threshold, and / or the reception performance of the configuration of the first transmission mode is greater than or equal to the second threshold, the seventh message includes all messages sent by the first communication device during the establishment of the side link.

[0259] Optionally, when the CBR of the resource pool corresponding to the first transmission mode is greater than the first threshold, and / or the reception performance of the configuration of the first transmission mode is less than the second threshold, the sixth message includes a sidelink direct communication request, or the first message includes a sidelink direct link establishment request, a PC5 direct communication request, or the first message includes a PC5 direct link establishment request.

[0260] Optionally, when the CBR of the resource pool corresponding to the first transmission mode is greater than the first threshold, and / or the reception performance of the configuration of the first transmission mode is less than the second threshold, the sixth message further includes a portion of the following messages: direct link security mode indication message, direct link establishment acceptance message, sidelink user capability information, sidelink radio resource control reconfiguration completion message, direct security mode completion message, sidelink user capability query message, sidelink radio resource control reconfiguration message, sidelink user capability information, PC5 radio resource control reconfiguration completion message, direct security mode completion message, PC5 user capability query message, and PC5 radio resource control reconfiguration message.

[0261] Optionally, the first communication device sends the first message to the second communication device using the first transmission mode, including: the first device sending the first message in the resource pool corresponding to the first side crosslink resource configuration using the first side crosslink DRX configuration.

[0262] Specifically, the first communication device sends the first message to the second communication device using the first transmission mode, including: the first device, under the first side link DRX configuration, uses the resource pool corresponding to the first side link resource configuration to send the first message.

[0263] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0264] Optionally, the first transmission mode includes a first data information transmission mode for transmitting data, and / or a first control information transmission mode for transmitting control information.

[0265] Optionally, the first transmission mode is indicated by the network device, or the first transmission mode is pre-configured, or the first transmission mode is specified by the protocol.

[0266] A tenth aspect provides a wireless communication method applied to a second communication device, the wireless communication method comprising: receiving a first message from a first communication device in a first transmission mode, the first transmission mode corresponding to a first sidelink resource configuration and / or a first sidelink discontinuous reception DRX configuration, the first message being generated by the first communication device for requesting the establishment of a sidelink.

[0267] According to the solution of this application, by receiving a first message for requesting the establishment of a side link in a first transmission mode, the communication device can use the first transmission mode to receive or send signaling for requesting the establishment of a side link, thereby effectively reducing the energy consumption of the communication device and improving the user experience.

[0268] In this context, receiving a first message from a first communication device in a first transmission mode can also be described as receiving a first message from a first communication device using a first transmission mode, or receiving a first message from a first communication device through a first transmission mode.

[0269] Optionally, the first message includes a sidelink direct communication request; or, the first message includes a direct link establishment request.

[0270] Optionally, the method further includes: sending a second message to the first communication device in a second transmission mode; and / or receiving a third message sent by the first communication device in the second transmission mode;

[0271] The second message and the third message are messages transmitted between the first communication device and the second communication device during the establishment of the side link.

[0272] Optionally, the process of establishing a sidelink includes at least one of the following: sidelink direct link establishment, sidelink direct link security mode control, sidelink direct link authentication, sidelink user capability exchange, sidelink radio resource reconfiguration, sidelink unicast link establishment, sidelink unicast link security mode control, sidelink unicast link authentication, PC5 direct link establishment, PC5 direct link security mode control, PC5 direct link authentication, PC5 user capability exchange, PC5 radio resource reconfiguration, PC5 unicast link establishment, PC5 unicast link security mode control, and PC5 unicast link authentication.

[0273] The second message includes at least one of the following messages: direct link security mode indication message, direct link establishment acceptance message, side link user capability information, and side link radio resource control reconfiguration completion message.

[0274] Furthermore, the third message includes at least one of the following messages: direct security mode completion message, sidelink user capability query message, sidelink radio resource control reconfiguration message, PC5 user capability query message, and PC5 radio resource control reconfiguration message.

[0275] Optionally, the method further includes: sending first information to the first communication device, the first information being used to indicate the second side link DRX configuration currently used by the second communication device.

[0276] Optionally, the first message carries second information, which is used to indicate the third-side crosslink DRX configuration currently used by the first communication device.

[0277] Optionally, the method further includes: sending a fourth message to the first communication device in the first transmission mode; and / or receiving a fifth message sent by the first communication device in the first transmission mode;

[0278] The fourth and fifth messages are messages transmitted between the first and second communication devices during the establishment of the side link process.

[0279] Optionally, the process of establishing a sidelink includes at least one of the following: sidelink unicast link establishment, sidelink unicast link security mode control, sidelink unicast link authentication, sidelink user capability exchange, sidelink radio resource reconfiguration, PC5 direct link establishment, PC5 direct link security mode control, PC5 direct link authentication, PC5 user capability exchange, PC5 radio resource reconfiguration, PC5 unicast link establishment, PC5 unicast link security mode control, and PC5 unicast link authentication.

[0280] The fourth message includes at least one of the following messages: direct link security mode indication message, direct link establishment acceptance message, side link user capability information, side link radio resource control reconfiguration completion message, PC5 user capability information, and PC5 radio resource control reconfiguration completion message.

[0281] Furthermore, the fifth message includes at least one of the following messages: direct security mode completion message, sidelink user capability query message, sidelink radio resource control reconfiguration message, PC5 user capability query message, and PC5 radio resource control reconfiguration message.

[0282] Optionally, the method further includes: determining the current status information of the first transmission mode, the status information including the CBR of the resource pool corresponding to the first transmission mode and / or the reception performance of the configuration of the first transmission mode; when the current status information of the first transmission mode meets a preset condition, sending a sixth message to the first communication device in the first transmission mode, and / or receiving a seventh message sent by the first communication device in the first transmission mode; or, when the current status information of the first transmission mode does not meet the preset condition, sending an eighth message to the first communication device in the second transmission mode, and / or receiving a ninth message sent by the first communication device in the second transmission mode.

[0283] The sixth message, the seventh message, the eighth message, or the ninth message are messages transmitted between the first communication device and the second communication device during the establishment of the side link process.

[0284] Specifically, when the CBR of the resource pool corresponding to the first transmission mode is less than or equal to the first threshold, and / or the reception performance of the configuration of the first transmission mode is greater than or equal to the second threshold, the sixth message includes all messages sent by the second communication device during the establishment of the side link, and / or when the CBR of the resource pool corresponding to the first transmission mode is less than or equal to the first threshold, and / or the reception performance of the configuration of the first transmission mode is greater than or equal to the second threshold, the seventh message includes all messages sent by the first communication device during the establishment of the side link.

[0285] Specifically, when the CBR of the resource pool corresponding to the first transmission mode is greater than the first threshold, and / or the reception performance of the configuration of the first transmission mode is less than the second threshold, the sixth message includes a sidelink direct communication request or the first message includes a direct link establishment request and a PC5 direct communication request.

[0286] Optionally, when the CBR of the resource pool corresponding to the first transmission mode is greater than the first threshold, and / or the reception performance of the configuration of the first transmission mode is less than the second threshold, the sixth message further includes some of the following messages: direct link security mode indication message, direct link establishment acceptance message, sidelink user capability information, sidelink radio resource control reconfiguration completion message, direct security mode completion message, sidelink user capability query message, sidelink radio resource control reconfiguration message, PC5 user capability information, PC5 radio resource control reconfiguration completion message, direct security mode completion message, PC5 user capability query message, and PC5 radio resource control reconfiguration message.

[0287] Optionally, the second communication device receiving the first message from the first communication device in the first transmission mode includes: the second communication device receiving the first message in the resource pool corresponding to the first side link resource configuration using the first side link DRX configuration.

[0288] Specifically, the second communication device receiving the first message from the first communication device in the first transmission mode includes: the second device receiving the first message by using the resource pool corresponding to the first side link resource configuration under the first side link DRX configuration.

[0289] Optionally, the first transmission mode includes a dedicated transmission mode for multicast or broadcast services.

[0290] Optionally, the first transmission mode includes a first data information transmission mode for transmitting data, and / or a first control information transmission mode for transmitting control information.

[0291] Optionally, the first transmission mode is indicated by the network device, or the first transmission mode is pre-configured, or the first transmission mode is specified by the protocol.

[0292] Eleventhly, a communication apparatus is provided, comprising modules or units for performing methods of any one of the first to tenth aspects and any possible implementation thereof.

[0293] In a twelfth aspect, a communication device is provided, including a processor coupled to a memory, which can be used to execute methods of any one of the first to tenth aspects and their possible implementations. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, to which the processor is coupled. Optionally, the communication device further includes a communication interface, to which the processor is coupled.

[0294] In one implementation, the communication interface may be a transceiver, or an input / output interface.

[0295] In another implementation, the communication device is a chip or chip system. In this case, the communication interface can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip system. The processor can also be a processing circuit or logic circuit.

[0296] In a thirteenth aspect, a communication device is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, such that the methods of any one of the first to tenth aspects and any possible implementation thereof are implemented.

[0297] In specific implementation, the aforementioned communication device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, gate circuit, flip-flop, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter. The input circuit and the output circuit can be different circuits or the same circuit, in which case the circuit is used as the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0298] In a fourteenth aspect, a processing apparatus is provided, including a processor and a memory. The processor is configured to read instructions stored in the memory and to receive signals via a receiver and transmit signals via a transmitter to execute methods of any one of the first to tenth aspects and their various possible implementations.

[0299] Optionally, the processor may be one or more, and the memory may be one or more.

[0300] Optionally, the memory may be integrated with the processor, or the memory may be separated from the processor.

[0301] In specific implementations, the memory can be a non-transitory memory, such as read-only memory (ROM), which can be integrated on the same chip as the processor or set on different chips. The embodiments of this application do not limit the type of memory or the way the memory and processor are set.

[0302] It should be understood that the relevant data interaction process, such as sending indication information, can be the process of outputting indication information from the processor, and receiving capability information can be the process of the processor receiving input capability information. Specifically, the processed output data can be output to the transmitter, and the input data received by the processor can come from the receiver. Here, the transmitter and receiver can be collectively referred to as a transceiver.

[0303] The processor mentioned in aspect fourteen above can be a chip, which can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, integrated circuit, etc.; when implemented in software, the processor can be a general-purpose processor that reads software code stored in memory. The memory can be integrated into the processor or located outside the processor and exist independently.

[0304] In a fifteenth aspect, a computer program product is provided, the computer program product comprising: a computer program (also referred to as code or instructions) that, when the computer program is run, causes a computer to perform a method in any one of the first to tenth aspects and any possible implementation thereof.

[0305] In a sixteenth aspect, a computer-readable medium is provided that stores a computer program (also referred to as code or instructions) that, when run on a computer, causes the computer to perform the methods of any one of the first to tenth aspects and any possible implementation thereof.

[0306] In a seventeenth aspect, a communication system is provided, including the aforementioned first communication device or second communication device.

[0307] Alternatively, the communication system includes the aforementioned transmitting and receiving devices. Attached Figure Description

[0308] Figure 1 A schematic structural diagram of an example of a communication system to which the solution provided in this application is applicable.

[0309] Figure 2 This is a schematic interactive diagram illustrating an example of the wireless communication process of this application.

[0310] Figure 3 This is a schematic interactive diagram illustrating another example of the wireless communication process of this application.

[0311] Figure 4 This is a schematic interactive diagram illustrating another example of the wireless communication process of this application.

[0312] Figure 5 This is a schematic interactive diagram illustrating another example of the wireless communication process of this application.

[0313] Figure 6 A schematic interactive diagram illustrating another example of the wireless communication process of this application.

[0314] Figure 7 This is a schematic interactive diagram illustrating an example of the sidelink establishment process in this application.

[0315] Figure 8 A schematic interactive diagram illustrating another example of the sidelink establishment process in this application.

[0316] Figure 9 A schematic interactive diagram illustrating yet another example of the sidelink establishment process in this application.

[0317] Figure 10 This is a schematic block diagram illustrating an example of a wireless communication device according to this application.

[0318] Figure 11 This is a schematic structural diagram of an example of a communication device applicable to this application. Detailed Implementation

[0319] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0320] The technical solutions of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS), future 5th generation (5G) system, or new radio (NR), etc.

[0321] Figure 1 A schematic diagram of a network architecture provided in an embodiment of this application is shown, such as... Figure 1 As shown, the communication system of this application may include an access device and multiple terminal devices, and the terminal devices may use the resource pool configured by the access device to perform sidelink communication.

[0322] That is, sidelinks (SL) can be established between terminal devices, and services can be transmitted through sidelinks.

[0323] As an example and not a limitation, the service may include, but is not limited to, vehicle-to-everything (V2X) communication services or device-to-device communication services.

[0324] The solution provided in this application applies to communication devices based on SL communication. The terminal devices listed above are merely one example of such communication devices, and this application is not limited to them. Other devices capable of using SL communication fall within the protection scope of this application. For example, the communication devices in this application may also include network devices. For ease of understanding and explanation, the following description uses a terminal device as the implementing entity (i.e., the communication device) of the solution provided in this application.

[0325] In one implementation, the sending end device (or sending UE) of a certain service can be multiple terminal devices, and the receiving end device (or receiving UE) of the service can be one or more. Alternatively, the sending end device of a certain service can be one, and the receiving end device of the service can be one or more, without particular limitation in this application.

[0326] The terminal equipment in this application embodiment can also be referred to as: user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.

[0327] Terminal devices can be devices that provide voice / data connectivity to users, such as handheld devices with wireless connectivity, in-vehicle devices, etc. Currently, examples of terminals include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or future public land mobile communication networks. Terminal devices in a network (PLMN), etc., are not limited to this in the embodiments of this application.

[0328] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0329] Furthermore, in this embodiment, the terminal device can also be a terminal device in an Internet of Things (IoT) system. IoT is an important component of future information technology development, and its main technical characteristic is connecting objects to networks via communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. It should be noted that... Figure 1 The wireless communication system 100 shown is only for the purpose of more clearly illustrating the technical solution of this application and does not constitute a limitation on this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new service scenarios, the technical solution provided by this application is also applicable to similar technical problems.

[0330] In this embodiment, IoT technology can achieve massive connectivity, deep coverage, and low terminal power consumption through technologies such as narrowband (NB) technology. For example, an NB may include a resource block (RB), meaning the NB's bandwidth is only 180KB. To achieve massive access, the terminals must be discrete in their access. The communication method according to this embodiment can effectively solve the congestion problem when a large number of IoT terminals access the network through an NB.

[0331] In addition, the access device in this application embodiment can be a device for communicating with terminal devices. The access device can also be called an access network device or a wireless access network device. For example, the access device can be an evolved NodeB (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario. Alternatively, the access device can be a relay station, access point, vehicle-mounted device, wearable device, or access device in a future 5G network or an access device in a future evolved PLMN network. It can be an access point (AP) in a WLAN, or a gNB in ​​a new radio (NR) system. This application embodiment is not limited to these.

[0332] Furthermore, in the embodiments of this application, the access device is a device in the RAN, or in other words, a RAN node that connects the terminal device to the wireless network. For example, by way of example and not limitation, the following can be listed as access devices: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home-evolved Node B, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP), etc. In a network architecture, network devices may include centralized unit (CU) nodes, distributed unit (DU) nodes, RAN devices including CU nodes and DU nodes, or RAN devices including control plane CU nodes (CU-CP nodes), user plane CU nodes (CU-UP nodes), and DU nodes.

[0333] Access devices provide services to cells. Terminal devices communicate with access devices through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the access device (e.g., a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. Small cells can include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0334] Furthermore, in LTE or 5G systems, multiple cells can operate simultaneously on the same frequency on a carrier. In certain special scenarios, the concepts of carrier and cell can be considered equivalent. For example, in carrier aggregation (CA) scenarios, when configuring a secondary carrier for a UE, the carrier index of the secondary carrier and the cell identification (cell ID) of the secondary cell operating on that secondary carrier are carried simultaneously. In this case, the concepts of carrier and cell can be considered equivalent; for instance, a terminal device accessing a carrier is equivalent to accessing a cell.

[0335] The communication system of this application can also be applied to vehicle-to-everything (V2X) technology, that is, the terminal device of this application can also be a car, such as a smart car or an autonomous vehicle.

[0336] The "X" in V2X represents different communication targets. V2X can include, but is not limited to: vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to network (V2N), and vehicle to pedestrian (V2P).

[0337] In V2X, access devices can configure "zones" for UEs. These zones can also be called geographical regions. Once a zone is configured, the world is divided into multiple zones, defined by a reference point, length, and width. When determining a zone identifier (ID), the UE uses the zone's length, width, the number of zones along the length, the number of zones along the width, and the reference point for a modulo operation. This information can be configured by the access device.

[0338] V2X services can be provided in two ways: based on the PC5 interface and based on the Uu interface. The PC5 interface is defined on top of a sidelink, allowing communication devices (e.g., vehicles) to communicate directly. The PC5 interface can be used both out of coverage (OOC) and in coverage (IC), but only authorized communication devices can use it for transmission.

[0339] In this application, V2X sidelink transmission supports two resource allocation modes: dedicated resource mode (which can be referred to as mode 1) and contention-based resource mode (which can be referred to as mode 2).

[0340] The dedicated resource mode requires the UE to be in radio resource control (RRC) connected state. During this process, the network device can allocate resources using the terminal device's dedicated radio network temporary identifier (RNTI). As an example, and not a limitation, in this application, dedicated resources in the dedicated resource mode may include SL DRX configuration.

[0341] Furthermore, in contention-based resource mode, this resource is configured via system message broadcast or dedicated signaling for terminal devices in idle, inactive, and connected states, and can be shared by more than one terminal device. In contention-based resource mode, the UE can select transmission resources and adjust the transmission formats of control and data on the sidelink.

[0342] For example, if the UE is configured with a mapping relationship from "service" to "receive configuration," then the UE selects the corresponding resource pool based on its configured service. A resource pool, also called a resource set or resource group, can include one or more resources, such as V2X resources. Furthermore, this resource pool can be pre-configured for the UE by the access device. During resource selection within the resource pool, the UE uses a sensing function; "sensing" can also be called measurement or detection. Based on the sensing results, the UE selects resources and reserves multiple resources.

[0343] In this application, the resource pool may refer to resources used for the control information and data transmission of sidelinks.

[0344] Optionally, the resources in the resource pool include at least one of time-domain resources, frequency-domain resources, and time-frequency-domain resources.

[0345] For example, the resource may include a resource block (RB).

[0346] For example, in V2X, resources may include a subchannel consisting of multiple consecutive RBs, where the subchannel may be the smallest unit of scheduling / data transmission on a sidelink.

[0347] In this application, the first transmission mode can be defined by means of network device instruction, (e.g., pre-configuration at the time of manufacture or sale) or protocol specification.

[0348] The first transmission mode supports UE energy-saving features, that is, when the UE uses the first transmission mode for service transmission, it can save energy consumption.

[0349] As an example, and not a limitation, the first transmission mode may correspond to a first-side hop link resource configuration, wherein the resources in the first-side hop link resource configuration are non-contiguous resources (specifically, non-contiguous resources in the time domain), or, in other words, the resources in the first-side hop link resource configuration are a portion of the resources configured by the network device for SL (specifically, a portion of the resources in the time domain). As an example, and not a limitation, the resources corresponding to the first transmission mode may include, but are not limited to, resource pools or configured grant (CG) resources.

[0350] For example, this first transmission mode can correspond to a first sidelink discontinuous reception (DRX) configuration. Discontinuous reception (DRX) is a mechanism for the UE to monitor communication resources (e.g., control channels or data channels). Without DRX, the UE would continuously monitor communication resources to see if data transmission is possible. When using DRX, the UE can periodically enter sleep mode at certain times. The UE does not need to continuously monitor communication resources, and when monitoring is required, it wakes up from sleep mode, thus saving power. It should be noted that in this application summary, the DRX configuration corresponding to the first transmission mode is the SL DRX configuration, i.e., the DRX configuration used for the sidelink.

[0351] As an example and not a limitation, the first transmission mode may be indicated by the network device, that is, the network device may broadcast information about the first transmission mode (e.g., resource configuration or DRX configuration).

[0352] For example, the first transmission mode can be pre-configured, for instance, by the manufacturer or operator when the terminal device leaves the factory, by pre-configuring the information of the first transmission mode in the terminal device (e.g., the configuration of SL resources or SLDRX).

[0353] For example, the first transmission mode can be defined by a protocol. For instance, when a terminal device joins the network, it can obtain information about the first transmission mode (e.g., resource configuration or DRX configuration).

[0354] It should be understood that the above-listed methods for the UE to learn the first transmission mode are merely illustrative examples, and this application is not limited to them, as long as it is ensured that the UE can know the specific configuration of the first transmission mode in advance.

[0355] By way of example and not limitation, the first transmission mode can be a dedicated transmission mode for multicast or broadcast services. Alternatively, the first transmission mode can be used only for multicast or broadcast transmissions.

[0356] It should be understood that the above-listed use cases of the first transmission mode are merely illustrative examples, and this application is not limited thereto. The first transmission mode can also be used for unicast service transmission.

[0357] By way of example and not limitation, the first transmission mode includes a first data information transmission mode for transmitting data and / or a first control information transmission mode for transmitting control information. Alternatively, the first transmission mode used for control information and data may be the same, and this application does not specifically limit the scope.

[0358] Furthermore, in this application, the first transmission mode can be one or more (or include multiple configurations), and this application does not specifically limit it.

[0359] For example, when determining to use the first transmission mode to transmit services, different services can use the same configured first transmission mode.

[0360] For example, when determining to use the first transmission mode to transmit services, different services can use different configurations of the first transmission mode.

[0361] In this application, when the first transmission mode corresponds to the sidelink resource configuration, if the first transmission mode includes multiple configurations, the resource pools corresponding to any two different first transmission modes are different.

[0362] Here, "the resource pools corresponding to any two different first transmission modes are different" can be understood as the resource pools corresponding to any two different first transmission modes not having any overlap.

[0363] Alternatively, "the resource pools corresponding to any two different first transmission modes are different" can be understood as the resource pools corresponding to any two different first transmission modes partially overlapping, that is, having neither overlapping nor non-overlapping parts.

[0364] In this application, when the first transmission mode corresponds to the SL DRX configuration, if the first transmission mode includes multiple configurations, the SL DRX configurations corresponding to any two different first transmission modes are different.

[0365] In this application, when the first transmission mode corresponds to the SL DRX configuration and the sidelink resource configuration, if the first transmission mode includes multiple configurations, the SL DRX configurations corresponding to any two different first transmission modes are different, and the resource pools corresponding to the first transmission modes with different configurations can be the same.

[0366] This application does not specifically limit the structure of the execution subject of the method provided in this application. As long as it can communicate according to the method provided in this application by running a program that records the code of the method provided in this application, for example, the execution subject of the method provided in this application can be a terminal device or a network device, or a functional module in a terminal device or network device that can call and execute a program; or a component (such as a chip or circuit) that can be used in a terminal device or network device.

[0367] Furthermore, various aspects or features of this application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0368] Figure 2 and Figure 3 Schematic interactive diagrams illustrating an example of the wireless communication process of this application are shown.

[0369] When UE#2 (i.e., an example of the second communication device) needs to send service #A (i.e., an example of the first service) to other UEs, it can execute... Figure 2 and / or Figure 3 The process shown can be either a unicast service that needs to be sent to one terminal device, or a multicast or broadcast service that needs to be sent to multiple terminals. This application does not have any particular limitation. For ease of understanding, the following description will be based on the action of UE#1 as the receiver of service #A.

[0370] In addition, in this application, service #A can be a service that U#1 is interested in, or service #A can be a service that UE#1 is configured to transmit.

[0371] like Figure 2As shown, in S210, UE#2 generates information #A (i.e., an example of the first information), wherein the information #A can be used to determine whether to use the first transmission mode described above to transmit services (e.g., service #A).

[0372] As an example and not a limitation, this information #A includes, but is not limited to, the service identifier of service #A, the source identifier SRC ID of service #A, the destination identifier DST ID of service #A, and the transport configuration Tx profile of service #A.

[0373] For example, the Destination Identifier (DST ID) includes either the Layer 2 Destination Identifier (Destination L2 ID) or the Layer 1 Destination Identifier (Destination L1 ID), and the Source Identifier (SRC ID) includes either the Layer 2 Source Identifier (Source L2 ID) or the Layer 1 Source Identifier (Source L1 ID).

[0374] In one implementation, UE#2 can also determine the transmission mode used when sending service #A based on information #A (e.g., the transmission configuration Txprofile of service #A).

[0375] In this application, the Tx profile may include a version that supports user power-saving features, such as R17, New Radio (NR) R17, or a later version that supports UE power-saving features.

[0376] One of the services has a Tx profile of R17, which can be understood as the service being transmitted in the manner corresponding to R17.

[0377] Alternatively, the Tx profile can include versions that do not support user power-saving features, such as R14, R15, or R16.

[0378] In this application, when a service's Tx profile is not R17, it can be understood that the service's Tx profile is R14, R15, or R16.

[0379] In addition, in this application, the device type of the UE can be classified based on the Tx profile it indicates. For example, a UE with device type R17 can support service transmission using the method corresponding to R17.

[0380] In this application, the UE can be compatible with the prior Tx profile. For example, a UE that supports R17 can also support the transmission of services using the corresponding methods of R14, R15 or R16.

[0381] To avoid redundancy, explanations of the same or similar situations will be omitted below.

[0382] In one implementation, if the service's Tx profile is R17, then the first transmission mode is forced to be used to transmit the service.

[0383] As an example and not a limitation, for instance, if the Tx profile of service #A is R17, then UE#2 transmits service #A using the first transmission mode.

[0384] For example, if the Tx profile of service #A is not R17, then UE#2 will not use the first transmission mode to send service #A.

[0385] In one implementation, UE#2 may transmit service #A using a second transmission mode. This is not a limitation, but rather an example. The second transmission mode may include transmission modes without UE power-saving features; for example, it may be a service transmission mode from the prior art (e.g., the transmission mode used by UEs with device types R14, R15, or R16). In another implementation, UE#2 may also determine the transmission mode used when transmitting service #A based on information #B (i.e., information transmitted by multiple receiving UEs of service #A, including UE#1), and then combine it with… Figure 3 The process will be described in detail.

[0386] It should be noted that, in this application, the transmission mode of service #A determined by UE#2 may be the same as or different from the transmission mode of service #A determined by UE#1, and this application does not specifically limit it.

[0387] Furthermore, in this application, the method and process by which the UE determines the Tx profile of a service can be similar to the prior art. Here, to avoid redundancy, its detailed description is omitted. For example, the UE can determine the Tx profile of the service based on the service's higher-level information, and different UEs may determine the same or different Tx profiles for the same service. This application does not specifically limit this.

[0388] In S220, UE#2 sends the information #A to UE#1 (i.e., an example of the first communication device).

[0389] It should be noted that, in one possible implementation of the embodiments of this application, UE#1 and UE2 may transmit the information #A in the first transmission mode, or UE#1 may also transmit the information #A in a transmission mode other than the first transmission mode. This application does not particularly limit this.

[0390] In S230, UE#1 determines whether to use the first transmission mode described above to receive the service #A based on the information #A.

[0391] In this application, the originating device of service #A can be a single device, namely UE#2 (i.e., case one), or the originating device of service #A can be multiple devices (including UE#2) (i.e., case two).

[0392] Furthermore, in scenario two, all of these devices send information to UE#1 to determine whether to use the first transmission mode to transmit the service #A. This process is similar to the process by which UE#2 sends information #A, and will not be elaborated here.

[0393] First, the method and process for UE#1 to determine the transmission mode of service #A in case 1 will be described in detail.

[0394] In one implementation, the information #A includes the Tx profile of business #A.

[0395] In addition, as mentioned above, different UEs may determine the same or different Tx profiles for the same service.

[0396] When different UEs determine the same Tx profile for the same service, UE#1 can determine the Tx profile of service #A on its own, or UE#1 can determine the Tx profile of service #A based on information #A.

[0397] When different UEs determine different Tx profiles for the same service, UE#1 determines the Tx profile of service #A based on information #A.

[0398] For example, when the Tx profile of service #A is a Tx profile with UE power saving features (e.g., R17 or later versions that support UE power saving features), UE #2 can force the use of the first transmission mode to receive service #A.

[0399] For example, when the Tx profile of service #A is a Tx profile that does not have UE power-saving features (e.g., R14, R15, or R16), UE #2 can determine not to use the first transmission mode to receive service #A, for example, to use the second transmission mode (e.g., a transmission mode of the prior art) to receive service #A. By way of example and not limitation, the second transmission mode may include the transmission mode currently used by UE #2.

[0400] For example, when the Tx profile of service #A is a Tx profile that does not have UE power saving features (e.g., R14, R15 or R16), UE #2 can disable the first transmission mode.

[0401] In this context, disabling the first transmission mode can be understood as UE#1 not using the first transmission mode when receiving SL services.

[0402] As an example and not a limitation, the SL service may include, but is not limited to, one or more of the following: sidelink multicast service, sidelink broadcast service, or sidelink unicast service.

[0403] The above-listed methods for determining the transmission mode based on the Tx profile are not limited to these. For example, in this application, the information #A may also include, but is not limited to, one or more of the following identifiers: service identifier, source identifier (SRC ID), or destination identifier (DST ID). Furthermore, in this application, the aforementioned one or more identifiers can be used to instruct UE#2 to send service #A. For example, in this application, a mapping relationship between multiple identifiers (or identifier groups) and multiple transmission modes can be pre-set. Thus, one or more identifiers carried by UE#1 information #A determine the transmission mode used by UE#1 when sending service #A, or in other words, determine whether UE#1 uses the first transmission mode to send service #A. To avoid redundancy, descriptions of similar or identical cases are omitted below.

[0404] The following is a detailed explanation of the method and process by which UE#1 determines the transmission mode of service #A under scenario two.

[0405] In one implementation, the information #A includes the Tx profile of business #A.

[0406] In one scenario, if the Tx profile of a service is R17, then the first transmission mode is forcibly used to transmit the service. That is, if the Tx profile of service #A is R17, then the first transmission mode is forcibly used to transmit service #A.

[0407] As mentioned above, the Tx profiles for the same service determined by different UEs may be the same or different.

[0408] For example, when different UEs have the same Tx profile for the same service, if the Tx profile of service #A is a Tx profile with UE power saving features (e.g., R17 or later versions that support UE power saving features), UE #2 can determine to receive service #A using the first transmission mode.

[0409] For example, when different UEs have the same Tx profile for the same service, if the Tx profile of service #A is a Tx profile that does not have UE power-saving features (e.g., R14, R15 or R16), UE #2 can determine not to use the first transmission mode to receive service #A, for example, to use the second transmission mode (e.g., the transmission mode of the prior art) to receive service #A.

[0410] For example, when different UEs have the same Tx profile for the same service, if the Tx profile of service #A is a Tx profile that does not have UE power-saving features (e.g., R14, R15 or R16), UE #2 can disable the first transmission mode.

[0411] In this context, disabling the first transmission mode can be understood as UE#1 not using the first transmission mode when receiving SL services.

[0412] As an example and not a limitation, the SL service may include, but is not limited to, one or more of the following: sidelink multicast service, sidelink broadcast service, or sidelink unicast service.

[0413] For example, when different UEs may determine different Tx profiles for the same service, UE#1 will base its Tx profile on the service #A carried in the received information #A (i.e., the Tx profile of service #A determined by the sending UE).

[0414] For example, if some of the multiple transmitting UEs (at least one transmitting UE) determine that the Tx profile of service #A is a Tx profile with UE power saving features (e.g., R17 or later versions that support UE power saving features), then UE#2 can determine to receive service #A using the first transmission mode.

[0415] For example, if the number of originating UEs whose Tx profile of service #A is a Tx profile with UE power saving features (e.g., R17 or later versions supporting UE power saving features) is greater than or equal to threshold 1, UE #2 can determine to receive service #A using the first transmission mode.

[0416] For example, if the proportion of originating UEs whose Tx profile of service #A is a Tx profile with UE power saving features (e.g., R17 or later versions supporting UE power saving features) is greater than or equal to threshold 2, UE #2 can determine to receive service #A using the first transmission mode.

[0417] For example, the information (e.g., information #A) sent by the sending UE (e.g., UE#2) also includes the location information of the sending UE. In this case, when UE#1 determines that the distance between it and all sending UEs whose Tx profile of service #A is not R17 is greater than or equal to the preset threshold 3, then UE#1 uses the first transmission mode to receive service #A.

[0418] It should be noted that in this scenario, some originating UEs may use the second transmission mode to send service #A, but UE #1 may use the first transmission mode to receive service #A. Therefore, UE #1 may be unable to receive service #A (e.g., data or control information) sent by the originating UEs using the second transmission mode across all resources, or in other words, UE #1 may be unable to receive service #A in a portion of the time slots. In this case, increasing the redundancy of service #A (e.g., exceeding a specified threshold for repeated transmissions) can allow UE #1 to not receive service #A in some time slots. Alternatively, when multiple originating UEs send the same content of service #A, UE #1 only needs to receive data from the originating device sending service #A using the first transmission mode in the first transmission mode. To avoid redundancy, descriptions of similar or identical scenarios will be omitted below.

[0419] In another implementation, information #A may include the transmission mode determined by UE#2 when sending the service #A.

[0420] In this case, UE#1 can determine the transmission mode to be used when receiving service #A based on the transmission mode used when sending service #A as determined by UE#2.

[0421] That is, in this case, if the Tx profile of service #A included in information #A is R17 (or the Tx profile of service #A determined by UE#2 is R17), then UE#2 may choose to use the first transmission mode to receive service #A. In other words, UE#2 may use the first transmission mode to receive service #A or may use other transmission modes to receive service #A.

[0422] Different UEs may use different transmission modes when sending service #A. In this case, information #A includes the transmission modes used by multiple sending UEs (including UE#2) when sending service #A.

[0423] For example, if at least one of the multiple transmitting UEs transmits service #A using the first transmission mode, UE#2 can determine to receive service #A using the first transmission mode.

[0424] For example, if none of the multiple transmitting UEs use the first transmission mode (e.g., use a transmission mode that does not support UE power saving features, i.e., the transmission mode corresponding to a Tx profile (e.g., R14, R15, or R16) that does not have UE power saving features) to transmit service #A, UE#2 can determine not to use the first transmission mode to receive service #A, for example, to use the second transmission mode (e.g., the transmission mode of the prior art) to receive service #A.

[0425] For example, if none of the multiple transmitting UEs use the first transmission mode (e.g., use a transmission mode that does not support UE power saving features, i.e., the transmission mode corresponding to the Tx profile (e.g., R14, R15 or R16) that does not have UE power saving features) to send service #A, UE#2 can disable the first transmission mode.

[0426] In this context, disabling the first transmission mode can be understood as UE#1 not using the first transmission mode when receiving SL services.

[0427] As an example and not a limitation, the SL service may include, but is not limited to, one or more of the following: sidelink multicast service, sidelink broadcast service, or sidelink unicast service.

[0428] For example, if the number of UEs transmitting service #A using the first transmission mode is greater than or equal to the threshold 4, UE #2 can determine to receive service #A using the first transmission mode.

[0429] For example, if the proportion of UEs using the first transmission mode to send service #A is greater than or equal to a threshold of 5, UE #2 can determine to use the first transmission mode to receive service #A.

[0430] For example, the information (e.g., information #A) sent by the sending UE (e.g., UE#2) also includes the location information of the sending UE. In this case, when UE#1 determines that the distance between it and all sending UEs that do not use the first transmission mode to transmit service #A is greater than or equal to the preset threshold 6, then UE#1 uses the first transmission mode to receive service #A.

[0431] For example, if the number of UEs transmitting service #A without using the first transmission mode is greater than or equal to the threshold 7, UE #2 will not use the first transmission mode to receive service #A.

[0432] It should be noted that in this scenario, some originating UEs may use the second transmission mode to send service #A, but UE #1 may receive service #A using the first transmission mode. Therefore, UE #1 may be unable to receive service #A (e.g., data or control information) sent by originating UEs using the second transmission mode across all resources, or in other words, UE #1 may be unable to receive service #A in a portion of the time slots. In this case, increasing the redundancy of service #A (e.g., exceeding a specified threshold for repeated transmissions) can allow UE #1 to not receive service #A in some time slots. Alternatively, when multiple originating UEs send service #A with the same content, UE #1 only needs to receive the data from the originating devices sending service #A using the first transmission mode in the first transmission mode. To avoid redundancy, descriptions of similar or identical scenarios will be omitted below.

[0433] Figure 3 This is a schematic interactive diagram illustrating another example of the wireless communication process described in this application.

[0434] like Figure 3 As shown, in S310, the receiving end UE#1 generates information #B (i.e., another example of the first information).

[0435] The information #B is used by UE#2 to determine the transmission mode when sending a service (e.g., service #A).

[0436] As an example and not a limitation, the information #B includes, but is not limited to, at least one of the following:

[0437] Whether UE#1 supports the first transmission mode, whether UE#1 requests to adopt the first transmission mode, the device type of UE#1, and the device identifier of UE#1 are all considered.

[0438] As an example and not a limitation, the device identifier of UE#1 may include, but is not limited to, the Layer 2 ID of UE#1, the Source RC ID of UE#1, the Member ID of UE#1, and the Local Index of UE#1.

[0439] Therefore, UE#2 can determine the receiving UE (e.g., UE#1) of the service based on the device identifier carried in information #B.

[0440] In this application, the device types include those that support SL energy saving and those that do not support SL energy saving.

[0441] S320, UE#1 sends information #B to UE#2.

[0442] In this application, the service sent by UE#2 can be a multicast service. In this case, there are multiple receiving UEs for the service. Each receiving UE sends the aforementioned information to UE#2, and this process is similar to the sending process of information #B. To avoid redundancy, its detailed description is omitted here. Thus, UE#2 can determine the receiving UE of the multicast service based on the device identifier carried in the information sent by each receiving UE.

[0443] Alternatively, the service sent by UE#1 can be a unicast service, in which case there is one receiving UE for the service.

[0444] S330, UE#2 determines whether to use the first transmission mode to send the service (e.g., service #A) based on information #B. In other words, UE#2 determines the transmission mode to use when sending service #A and sends service #A based on the determined mode.

[0445] For example, if UE#2 determines, based on one or more received information #B, that some (e.g., at least one) or all of the receiving UEs of the service support or request the use of the first transmission mode, then UE#2 can determine to send the service #A using the first transmission mode.

[0446] Alternatively, if UE#2 determines, based on one or more received information #B, that the number (or proportion) of UEs among the receiving UEs of the service that support or request the use of the first transmission mode is greater than a threshold x, then UE#2 may determine to send the service #A using the first transmission mode.

[0447] For example, if UE#2 determines, based on one or more received information #B, that some (e.g., at least one) or all of the device types in the receiving UE of the service are of a type that supports the first transmission mode (e.g., R17 or a later version that supports UE power saving features), and UE#2 determines that the Tx profile of the service #A is a Tx profile with UE power saving features (e.g., R17 or a later version that supports UE power saving features), then UE#2 can determine to send the service #A using the first transmission mode.

[0448] Alternatively, if UE#2 determines, based on one or more received information #B, that the number (or proportion) of UEs receiving the service whose device type supports the first transmission mode (e.g., R17 or NR 17) is greater than a threshold y, then UE#2 may determine to send the service #A using the first transmission mode.

[0449] It should be noted that, Figure 2 and Figure 3 The methods shown can be used alone or in combination, for example, Figure 2The UE#2 shown can be included in the generated information #A. Figure 3 The process shown determines the transmission mode used by the sending service #A.

[0450] Figure 4 This is a schematic interactive diagram of another example of the wireless communication process in this application.

[0451] like Figure 4 As shown in S410, UE#A and UE#B determine the transmission configuration Txprofile for service #C (i.e., an example of the first service).

[0452] In this application, the transmission configuration may be a transmission configuration of NR R17 version that only supports SL power saving of terminal devices, which may be referred to as the first transmission configuration; or it may be other transmission configurations that do not support SL power saving of terminal devices, such as NR R16, LTER15 or R14, which may be referred to as the second transmission configuration.

[0453] Furthermore, UE#A and UE#B determine whether to use the first transmission mode to receive the service based on the Tx profile of service #C, or in other words, UE#A and UE#B determine the transmission mode of service #C based on the Tx profile of service #C.

[0454] It should be noted that, in Figure 4 In the scheme shown, different UEs use the same transmission mode determined by the Tx profile.

[0455] When the Tx profile of service #C is a Tx profile with UE power saving features (e.g., R17), UE#A and UE#B can determine to receive service #C using the first transmission mode.

[0456] For example, when the Tx profile of service #C is a Tx profile without UE power-saving features (e.g., R14, R15, or R16), UE#A and UE#B can determine not to use the first transmission mode to receive service #C, for example, to use the second transmission mode (e.g., a transmission mode of the prior art) to receive service #C. By way of example and not limitation, the second transmission mode may include the transmission mode currently used by UE#A and UE#B.

[0457] For example, when service #C is a Tx profile that does not have UE power saving features (e.g., R14, R15 or R16), UE#A and UE#B can disable the first transmission mode.

[0458] In this context, disabling the first transmission mode can be understood as UE#A and UE#B not using the first transmission mode when transmitting SL services.

[0459] As an example and not a limitation, the SL service may include, but is not limited to, one or more of the following: sidelink multicast service, sidelink broadcast service, or sidelink unicast service.

[0460] In S420, UE#A sends service #C based on the determined transmission mode, and UE#B receives service #C based on the determined transmission mode.

[0461] Figure 5 This is a schematic interactive diagram illustrating another example of the wireless communication process described in this application.

[0462] like Figure 5 As shown in step S510, the transmitting device UE#Y determines the first mapping relationship.

[0463] In this embodiment of the application, the first mapping relationship is used to indicate the transmission mode corresponding to each service in at least one service.

[0464] The transmission mode includes a first transmission mode, that is, at least one of the multiple services uses a first transmission mode that supports UE energy saving.

[0465] Furthermore, for example, different services can use the same first transmission mode configuration.

[0466] Alternatively, different services can use different configurations of the first transmission mode.

[0467] In this application, when the first transmission mode corresponds to the sidelink resource configuration, if the first transmission mode includes multiple configurations, the resource pools corresponding to any two different first transmission modes are different.

[0468] Here, "the resource pools corresponding to any two different first transmission modes are different" can be understood as the resource pools corresponding to any two different first transmission modes not having any overlap.

[0469] Alternatively, "the resource pools corresponding to any two different first transmission modes are different" can be understood as the resource pools corresponding to any two different first transmission modes partially overlapping, that is, having neither overlapping nor non-overlapping parts.

[0470] In this application, when the first transmission mode corresponds to the SL DRX configuration, if the first transmission mode includes multiple configurations, the SL DRX configurations corresponding to any two different first transmission modes are different.

[0471] In this application, when the first transmission mode corresponds to the SL DRX configuration and the sidelink resource configuration, if the first transmission mode includes multiple configurations, the SL DRX configurations corresponding to any two different first transmission modes are different, and the resource pools corresponding to the first transmission modes with different configurations can be the same, or the resource pools corresponding to the first transmission modes with different configurations can also be different. This application does not limit the features.

[0472] As examples rather than limitations, the following ways of determining the first mapping relationship can be listed.

[0473] Method 1

[0474] UE#Y can obtain the first mapping relationship from the network device.

[0475] Alternatively, the first mapping relationship may be pre-configured in UE#Y at the time of UE#Y's manufacture.

[0476] Alternatively, the first mapping relationship can also be defined by the protocol.

[0477] Method 2

[0478] UE#Y can obtain a second mapping relationship from the network device, which is used to indicate the transmission mode corresponding to at least one piece of information #C.

[0479] In one implementation, the information #C may include business attribute information, such as service quality configuration or business model.

[0480] In another implementation, the information #C may also include information about the resources used by the service, such as the congestion rate or interference of the resources used by the service.

[0481] Therefore, the UE can determine the transmission mode corresponding to each service based on the information of each service.

[0482] For example, if the second mapping relationship indicates that the information #C of service #X corresponds to transmission mode #X, then UE #Y can determine that the transmission mode corresponding to service #X in the first mapping relationship is transmission mode #X.

[0483] Method 3

[0484] Service #Y can determine the first transmission mode i∈[1,M] corresponding to the i-th service based on the identifier of the i-th service among M services and the total number of the first transmission modes.

[0485] That is, the identifier of the i-th service and the total number of the first transmission modes are the independent variables of function #1 (i.e., an example of the first function), and the first transmission mode corresponding to the i-th service is the dependent variable of function #1.

[0486] For example, the identifier of the i-th service includes the destination identifier (DST ID) of the i-th service.

[0487] By way of example, the above function #1 can be expressed as:

[0488] n = x mode N

[0489] Wherein, the value of n is associated with the transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of transmission modes.

[0490] S520, the transmitting device UE#Y sends relevant information about the first mapping relationship in the second transmission mode.

[0491] For example, the relevant information of the first mapping relationship may include the first mapping relationship itself.

[0492] Alternatively, the relevant information for the first mapping relationship may include information used to determine the first mapping relationship, such as the value of the function #1 or N mentioned above.

[0493] Alternatively, the information related to the first mapping relationship may include the attribute information of each service in the first mapping relationship. Furthermore, if UE#X cannot obtain the second mapping relationship, the information related to the first mapping relationship may also include the second mapping relationship.

[0494] By way of example and not limitation, in this application, a network device may send information related to a first mapping relationship via message #X, wherein the first message includes at least one of the following messages: sidelink multicast radio resource control message, sidelink broadcast radio resource control message, sidelink media access control unit, and sidelink system information.

[0495] In this application embodiment, the second transmission mode may include, but is not limited to, transmission modes that do not support SL power saving in terminal devices.

[0496] S530, the receiving device UE#X determines the transmission mode corresponding to the service#Y that it is interested in or is configured to transmit among the services included in the first mapping relationship, based on the first mapping relationship.

[0497] In S540, UE#Y sends service #Y according to the transmission mode corresponding to service #Y, and UE#X receives service #Y according to the transmission mode corresponding to service #Y.

[0498] In one possible implementation, UE#Y can also update and modify the first mapping relationship and send the updated first mapping relationship to UE#X.

[0499] Therefore, UE#Y sends service #Y according to the transmission mode corresponding to service #Y indicated by the updated first mapping relationship, and UE#X receives service #Y according to the transmission mode corresponding to service #Y indicated by the updated first mapping relationship.

[0500] It should be noted that anyone in the art can arbitrarily set the modification method of UE#Y for the first mapping relationship, and this application does not specifically limit it.

[0501] By way of example and not limitation, the update opportunities of the first mapping relationship can be periodically distributed in the time domain. Specifically, in this application, a modification period can be defined to indicate the time interval between two adjacent update opportunities of the first mapping relationship.

[0502] Furthermore, within the same modification period, the modified first mapping relationship can be repeatedly transmitted. For example, each modification period may include multiple repetition periods, which are used to indicate the time interval between two adjacent reception opportunities of the same first mapping relationship within the same modification period.

[0503] As an example and not a limitation, the modification period may be an integer multiple of the repetition period.

[0504] In one implementation, the boundary frame number between two adjacent modification cycles can be determined based on the modification cycle and a first offset value.

[0505] For example, the modification period, the first offset value, and the boundary frame number between two adjacent modification periods satisfy the following formula:

[0506] y mod z = w

[0507] Wherein, y is associated with the boundary frame number of the modification period, z is associated with the length of the modification period, and w is associated with the first offset value.

[0508] In one implementation, UE#Y can also send information #D (i.e., an example of third information) to UE#X, which indicates that the first mapping relationship has been updated.

[0509] As an example and not a limitation, the information #D may be carried in the first-side link control information (SCI).

[0510] For example, the first SCI could be an SCI dedicated to carrying the information #D.

[0511] Alternatively, the first SCI can also be used to carry information other than #D.

[0512] For example, the information #D can be transmitted in a first modification period of multiple modification periods, and the updated first mapping relationship can be transmitted in a second modification period, with the first modification period preceding the second modification period. The modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship.

[0513] Figure 6 This is a schematic interactive diagram illustrating another example of the wireless communication process described in this application.

[0514] like Figure 6 As shown in step S610, the receiving device UE#Z and the transmitting device UE#W determine the first mapping relationship.

[0515] In this embodiment of the application, the first mapping relationship is used to indicate the transmission mode corresponding to each of the multiple services.

[0516] The transmission mode includes a first transmission mode, that is, at least one of the multiple services uses a first transmission mode that supports UE energy saving.

[0517] Furthermore, for example, different services can use the same first transmission mode configuration.

[0518] Alternatively, different services can use different configurations of the first transmission mode.

[0519] Furthermore, when the first transmission mode includes multiple configurations, the resource pools corresponding to any two different first transmission modes are different.

[0520] Here, "the resource pools corresponding to any two different first transmission modes are different" can be understood as the resource pools corresponding to any two different first transmission modes not having any overlap.

[0521] Alternatively, "the resource pools corresponding to any two different first transmission modes are different" can be understood as the resource pools corresponding to any two different first transmission modes partially overlapping, that is, having neither overlapping nor non-overlapping parts.

[0522] Alternatively, the SL DRX configurations corresponding to any two different first transmission modes are different.

[0523] As examples rather than limitations, the following ways of determining the first mapping relationship can be listed.

[0524] UE#Z and UE#W can determine the first transmission mode i∈[1,M] corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of the first transmission modes.

[0525] That is, the identifier of the i-th service and the total number of the first transmission modes are the independent variables of function #1 (i.e., an example of the first function), and the first transmission mode corresponding to the i-th service is the dependent variable of function #1.

[0526] For example, the identifier of the i-th service includes the destination identifier (DST ID) of the i-th service.

[0527] By way of example, the above function #1 can be expressed as:

[0528] n = x mode N

[0529] Wherein, the value of n is associated with the transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of transmission modes.

[0530] In S620, UE#Z sends service #Y according to the transmission mode corresponding to service #Z, and UE#W receives service #Z according to the transmission mode corresponding to service #Z. Here, service #Z can be a service that UE#W is configured to receive, or service #Z can be a service that UE#W is interested in.

[0531] Figure 7 This is a schematic interactive diagram illustrating another example of the wireless communication process described in this application.

[0532] like Figure 7 As shown, UE#a uses the first transmission mode to send the first message to UE#b.

[0533] The first transmission mode includes the transmission modes that support the energy-saving features of terminal devices.

[0534] Furthermore, UE#a is the initiator of the new SL, and UE#b is the recipient of the new SL.

[0535] In embodiments of this application, the first message is a message used to request the establishment of a side link.

[0536] In this application, the first message includes a direct communication request or a direct link establishment request.

[0537] In one possible implementation, UE#a can start the customizer after sending the first message and remain active (or awakened) until the timer expires in order to receive the response message sent by UE#b in response to the first message.

[0538] It should be noted that if no response message is received after the timer expires, UE#a can stop expecting a reply from UE#b. In this case, UE#a can enter a sleep state to conserve energy.

[0539] Furthermore, UE#b uses the second transmission mode to send a second message to UE#a.

[0540] Furthermore, UE#a uses the second transmission mode to send a third message to UE#b.

[0541] The second transmission mode includes transmission modes that do not support SL power saving in terminal devices.

[0542] As an example and not a limitation, the second and third messages may include messages from the process of establishing a side link.

[0543] Furthermore, the process of establishing the side link may include, but is not limited to, at least one of the following processes:

[0544] Sidelink Direct Link Establishment, Sidelink Direct Link Security Mode Control, Sidelink Direct Link Authentication, Sidelink UE Capability Transferring, Sidelink Radio Resource Reconfiguration, Sidelink Unicast Link Establishment, Sidelink Unicast Link Security Mode Control, Sidelink Unicast Link Authentication, PC5 Direct Link Establishment, PC5 Direct Link Security Mode Control, PC5 Direct Link Authentication, PC5 UE Capability Transferring, PC5 Radio Resource Reconfiguration, PC5 Unicast Link Establishment, PC5 Unicast Link Security Mode Control, PC5 Unicast Link Authentication (link authentication).

[0545] That is, the second message includes at least one of the following messages:

[0546] The messages include: Direct link Security Mode Command, Direct link establishment accept, UE capability information sidelink, and sidelink RRC reconfiguration complete.

[0547] The third message includes at least one of the following messages:

[0548] The messages include: Direct Security Mode Complete, sidelink UE capability enquiry, sidelink RRC reconfiguration, PC5 UE capability enquiry, and PC5 RRC reconfiguration.

[0549] In one possible implementation, the second message may also carry the SL DRX configuration currently used by UE#b.

[0550] Furthermore, the first message can also carry the SL DRX configuration currently used by UE#a.

[0551] In addition, the SL DRX configuration currently used by the UE can be determined from candidate SL DRX configurations, which may include, but are not limited to, unicast SL DRX configurations, multicast SL DRX configurations, or broadcast SL DRX configurations. Figure 8 This is a schematic interactive diagram illustrating another example of the wireless communication process described in this application. Figure 7 The process shown is different in that... Figure 8 During the process shown, some (one or more) messages in the second message are also transmitted through the first transmission mode.

[0552] Furthermore, some (one or more) of the messages in the third message are also transmitted via the first transmission mode.

[0553] Figure 9 This is a schematic interactive diagram illustrating another example of the wireless communication process described in this application. Figure 7 and Figure 8 The process shown is different in that... Figure 9During the process shown, UE#n and UE#m determine whether the state of the first transmission mode meets the preset conditions.

[0554] For example, the state of the first transmission mode may include the attributes of the resource pool corresponding to the first transmission mode (e.g., CMR). In this case, UE#n and UE#m can determine whether the CMR of the resource pool corresponding to the first transmission mode is lower than the threshold s. If the determination is yes, UE#n and UE#m can use the first transmission mode to transmit messages other than the first message during the establishment of the side-link. If the determination is no, UE#n and UE#m can base their transmission on the first transmission mode. Figure 7 or Figure 8 The second and third messages are transmitted in the manner shown.

[0555] For example, the state of the first transmission mode may include the attributes of the resource pool corresponding to the first transmission mode (e.g., CBR). In this case, UE#n and UE#m can determine whether the reception performance of the configuration corresponding to the first transmission mode is greater than the threshold t. If the determination is yes, then UE#n and UE#m can use the first transmission mode to transmit messages other than the first message during the establishment of the crosslink. If the determination is no, then UE#n and UE#m can... Figure 7 or Figure 8 The second and third messages are transmitted in the manner shown.

[0556] It should be noted that "sidelink" (or sidlink) in the message names in this embodiment can be replaced with "PC5". Furthermore, these message or signaling procedure names are used to indicate the function of the corresponding message or procedure, and are not limited to messages or procedures with exactly the same name.

[0557] According to the aforementioned method, Figure 10 A schematic diagram of a wireless communication device 1000 provided in an embodiment of this application.

[0558] The device 1000 can be a communication device, or a chip or circuit, such as a chip or circuit that can be installed in the first device.

[0559] The device 1000 may include a processing unit 1010 (i.e., an example of a processing unit), and optionally, may also include a storage unit 1020. The storage unit 1020 is used to store instructions.

[0560] In one possible approach, the processing unit 1010 is used to execute the instructions stored in the storage unit 1020 so that the device 1000 performs the steps performed by the communication device (specifically, the terminal device) in the method described above.

[0561] Furthermore, the device 1000 may also include an input port 1030 (i.e., an example of a communication unit) and an output port 1040 (i.e., another example of a communication unit). Furthermore, the processing unit 1010, storage unit 1020, input port 1030, and output port 1040 can communicate with each other through internal connection paths to transmit control and / or data signals. The storage unit 1020 is used to store computer programs, and the processing unit 1010 can use it to call and run the computer program from the storage unit 1020 to complete the steps of the terminal device in the above method. The storage unit 1020 may be integrated into the processing unit 1010 or may be disposed separately from the processing unit 1010.

[0562] Optionally, in one possible embodiment, the input port 1030 can be a receiver, and the output port 1040 can be a transmitter. The receiver and transmitter can be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.

[0563] Alternatively, in one possible configuration, the input port 1030 is an input interface, and the output port 1040 is an output interface.

[0564] As one implementation method, the functions of input port 1030 and output port 1040 can be implemented using transceiver circuits or dedicated transceiver chips. Processing unit 1010 can be implemented using a dedicated processing chip, processing circuit, processing unit, or general-purpose chip.

[0565] As another implementation method, the communication device provided in this application embodiment (e.g., the second communication device UE#2) can be implemented using a general-purpose computer. That is, the program code that implements the functions of the processing unit 1010, the input port 1030 and the output port 1040 is stored in the storage unit 1020, and the general-purpose processing unit implements the functions of the processing unit 1010, the input port 1030 and the output port 1040 by executing the code in the storage unit 1020.

[0566] In one implementation, input port 1030 is used to receive first information sent by a second communication device, the first information being used to determine that a first transmission mode is used to transmit a service, the first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception (DRX) configuration; the processing unit 1010 is used to determine the transmission mode of the first service based on the first information, and control the input port 1030 to receive the first service from the second communication device; or control the output port 1040 to send the first service to the second communication device.

[0567] In this case, when the device 1000 is configured as, or is itself, the receiving end of the first service, each unit or module of the device 1000 is used to perform... Figure 2 The steps performed by UE#1 in the method shown are omitted here to avoid redundancy.

[0568] Furthermore, when the device 1000 is configured as, or is itself, the transmitting end of the first service, each unit or module of the device 1000 is used to perform... Figure 2 The steps performed by UE#2 in the method shown are omitted here to avoid redundancy.

[0569] In another implementation, the output port 1040 is used to send first information to the first communication device, the first information being used to determine to transmit a service using a first transmission mode, the first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception (DRX) configuration; the processing unit 1010 is used to control the output port 1040 to send the first service to the first communication device according to the first information; or the processing unit 1010 is used to control the input port 1030 to receive the first service from the first communication device according to the first information.

[0570] In this case, when the device 1000 is configured as, or is itself, the receiving end of the first service, each unit or module of the device 1000 is used to perform... Figure 3 The steps performed by UE#1 in the method shown are omitted here to avoid redundancy.

[0571] Furthermore, when the device 1000 is configured as, or is itself, the transmitting end of the first service, each unit or module of the device 1000 is used to perform... Figure 3 The steps performed by UE#2 in the method shown are omitted here to avoid redundancy.

[0572] In another implementation, the processing unit 1010 is configured to determine the transmission configuration of the first service, and based on the transmission configuration of the first service, determine the transmission mode used when sending or receiving the first service from at least one transmission mode, wherein the at least one transmission mode includes a first transmission mode, the first transmission mode corresponding to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception (DRX) configuration.

[0573] In this case, each unit or module of the device 1000 is used to perform... Figure 4 The steps performed by UE#A or UE#B in the method shown are omitted here to avoid redundancy.

[0574] In another implementation, the processing unit 1010 is used to determine a first mapping relationship, which indicates a first transmission mode corresponding to at least one service. The first transmission mode corresponds to a first side link resource configuration and / or a first side link discontinuous reception DRX configuration, wherein the at least one service is associated with a side link. The output port 1040 is used to send relevant information of the first mapping relationship in a second transmission mode, wherein the second transmission mode corresponds to a second side link resource configuration and / or a second side link DRX configuration.

[0575] In this case, each unit or module of the device 1000 is used to perform... Figure 5 The steps executed by UE#Y in the method shown are omitted here to avoid redundancy.

[0576] In another implementation, the input port 1030 is used to receive information related to a first mapping relationship sent by the first communication device in a second transmission mode. The first mapping relationship is used to indicate a first transmission mode corresponding to at least one service. The first transmission mode corresponds to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception DRX configuration, and the second transmission mode corresponds to a second-side crosslink resource configuration and / or a second-side crosslink DRX configuration. The processing unit 1010 is used to determine the first transmission mode corresponding to a first service among the at least one service according to the first mapping relationship. The first service includes services that the second communication device is configured to receive, and / or the first service includes services that the second communication device is interested in.

[0577] In this case, each unit or module of the device 1000 is used to perform... Figure 5 The steps executed by UE#X in the method shown are omitted here to avoid redundancy.

[0578] In another implementation, the processing unit 1010 is configured to determine the first transmission mode corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of first transmission modes. The first transmission mode corresponds to the first side link resource configuration and / or the first side link discontinuous reception DRX configuration. The M services are associated with the side link, i∈[1,M], M≥1. The output port 1040 is configured to send the i-th service according to the first transmission mode corresponding to the i-th service. Alternatively, the input port 1030 is configured to receive the i-th service according to the first transmission mode corresponding to the i-th service.

[0579] In this case, each unit or module of the device 1000 is used to perform... Figure 6The steps executed by UE#Z or UE#W in the method shown are omitted here to avoid redundancy.

[0580] In another implementation, the processing unit 1010 is used to generate a first message, which is used to request the establishment of a side link; the output port 1040 is used to send the first message to a second communication device in a first transmission mode, which corresponds to a first side link resource configuration and / or a first side link discontinuous reception DRX configuration.

[0581] In this case, each unit or module of the device 1000 is used to perform... Figures 7-9 The steps executed by UE#n in the method shown are omitted here to avoid redundancy.

[0582] In another implementation, the input port 1030 is used to receive a first message from the first communication device in a first transmission mode, the first transmission mode corresponding to a first side link resource configuration and / or a first side link discontinuous reception DRX configuration, the first message being generated by the first communication device for requesting the establishment of a side link.

[0583] In this case, each unit or module of the device 1000 is used to perform... Figures 7-9 The steps executed by UE#m in the method shown are omitted here to avoid redundancy.

[0584] The functions and operations of each module or unit in the device 1000 listed above are merely illustrative examples. When the device 1000 is configured in or is itself a communication device, each module or unit in the device 1000 can be used to perform the actions or processes performed by the terminal device in the above method. Here, to avoid redundancy, detailed descriptions are omitted.

[0585] For the concepts, explanations, detailed descriptions, and other steps related to the technical solutions provided in the embodiments of this application involved in the device 1000, please refer to the descriptions of these contents in the foregoing methods or other embodiments, which will not be repeated here.

[0586] Figure 11 This is a schematic diagram of the structure of a communication device 1100 provided in this application. The aforementioned device 1100 can be configured in the communication device 1100, or the aforementioned device 1100 itself can be the communication device 1100. In other words, the communication device 1100 can perform the actions performed by the communication device in the aforementioned method 1100.

[0587] For ease of explanation, Figure 11 Only the main components of the communication equipment are shown. For example... Figure 11As shown, the communication device 1100 includes a processor, a memory, a control circuit, an antenna, and input / output devices.

[0588] The processor is primarily used to process communication protocols and data, control the entire communication device, execute software programs, and process the data within those programs. For example, it supports the communication device in performing the actions described in the embodiments of the transmission precoding matrix instruction method. The memory is primarily used to store software programs and data, such as the codebooks described in the embodiments above. The control circuit is primarily used for converting baseband signals to radio frequency signals and processing radio frequency signals. The control circuit and antenna together can also be called a transceiver, primarily used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. Input / output devices, such as touchscreens, displays, and keyboards, are primarily used to receive user input data and output data to the user.

[0589] When the communication device is powered on, the processor can read the software program from the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit processes the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal back into data and processes the data.

[0590] Those skilled in the art will understand that, for ease of explanation, Figure 11 Only one memory and processor are shown. In actual communication devices, multiple processors and memories may exist. Memory can also be called storage medium or storage device, etc., and this application does not limit this.

[0591] For example, a processor may include a baseband processor and a central processing unit (CPU). The baseband processor is mainly used to process communication protocols and communication data, while the CPU is mainly used to control the entire communication device, execute software programs, and process the data of the software programs. Figure 11The processor in the device integrates the functions of a baseband processor and a central processing unit (CPU). Those skilled in the art will understand that the baseband processor and CPU can also be independent processors interconnected via technologies such as buses. It will also be understood that a communication device can include multiple baseband processors to adapt to different network standards, and multiple CPUs to enhance its processing capabilities. The various components of the communication device can be connected via various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. Similarly, the CPU can be described as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored as software programs in a storage unit, with the processor executing the software programs to implement the baseband processing function.

[0592] For example, in this embodiment of the application, the antenna and control circuit with transceiver functions can be regarded as the transceiver unit 1110 of the communication device 1100, and the processor with processing functions can be regarded as the processing unit 1120 of the communication device 1100. As shown in FIG1100, the communication device 1100 includes the transceiver unit 1110 and the processing unit 1120. The transceiver unit can also be referred to as a transceiver, transceiver machine, transceiver device, etc. Optionally, the device in the transceiver unit 1110 used to implement the receiving function can be regarded as the receiving unit, and the device in the transceiver unit 1110 used to implement the transmitting function can be regarded as the transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit. For example, the receiving unit can also be referred to as a receiver, receiver circuit, etc., and the transmitting unit can be referred to as a transmitter, transmitter, or transmitting circuit, etc.

[0593] This application also provides a computer-readable medium having a computer program stored thereon, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0594] This application also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0595] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0596] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0597] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0598] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. In the several embodiments provided in this 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 merely illustrative; for example, the division of units is merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0599] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, the functional units in the various embodiments of this 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. If the function is implemented as 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 this application, in essence, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0600] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for wireless communication, characterized in that, The method includes: Based on the second information and second mapping relationship of at least one service, a first mapping relationship is determined. The first mapping relationship is used to indicate the first transmission mode corresponding to the at least one service. The second mapping relationship is used to indicate the first transmission mode corresponding to the second information of the at least one service. The first transmission mode corresponds to the first-side crosslink resource configuration and / or the first-side crosslink discontinuous reception DRX configuration. In the third transmission mode, the relevant information of the first mapping relationship is sent, and the third transmission mode corresponds to the third-side crosslink resource configuration and / or the third-side crosslink DRX configuration; The second information includes at least one of the following: service quality configuration, congestion rate of resources used by the business, or business model.

2. The method according to claim 1, characterized in that, At least two of the at least one services correspond to the same first transmission mode, wherein The at least two services use the same sidelink resource configuration and / or sidelink discontinuous reception DRX configuration in the same first transmission mode.

3. The method according to claim 1, characterized in that, At least two of the at least one services correspond to different first transmission modes, wherein The sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two services in the different first transmission modes have overlapping portions; or The sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two services in the different first transmission modes do not overlap.

4. The method according to claim 1, characterized in that, The first mapping relationship is indicated by the network device, or The first mapping relationship is pre-configured.

5. The method according to claim 1, characterized in that, The second mapping is indicated by the network device, or, The second mapping relationship is pre-configured, or The second mapping relationship is defined by the protocol.

6. The method according to claim 5, characterized in that, The relevant information of the first mapping relationship includes the attribute information of the at least one service.

7. The method according to any one of claims 1 to 6, characterized in that, The relevant information for the first mapping relationship also includes the second mapping relationship.

8. The method according to any one of claims 1 to 6, characterized in that, The relevant information of the first mapping relationship includes the first mapping relationship itself.

9. The method according to any one of claims 1 to 6, characterized in that, In the third transmission mode, sending the relevant information of the first mapping relationship includes: In the third transmission mode, fourth information is transmitted, which carries information related to the first mapping relationship, and the fourth information includes at least one of the following: Sidelink multicast radio resource control messages, sidelink broadcast radio resource control messages, sidelink media access control unit, and sidelink system information.

10. The method according to claim 1, characterized in that, Determining the first mapping relationship includes: Based on the identifier of the i-th service among the M services and the total number of the first transmission modes, determine the first transmission mode corresponding to the i-th service, i∈[1,M], M≥1.

11. The method according to claim 10, characterized in that, The identifier of the i-th service includes the destination identifier (DST ID) of the i-th service.

12. The method according to claim 10, characterized in that, The step of determining the first transmission mode corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of the first transmission modes includes: The first transmission mode corresponding to the i-th service is determined according to the following formula. n=x mode N Wherein, the value of n is associated with the first transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of the first transmission modes.

13. The method according to any one of claims 10 to 12, characterized in that, The relevant information of the first mapping relationship includes at least one of the following: The total number of the first transmission modes, the first function, Wherein, the identifier of the i-th service and the total number of the first transmission modes are the independent variables of the first function, and the first transmission mode corresponding to the i-th service is the dependent variable of the first function.

14. The method according to any one of claims 1 to 6, characterized in that, The method further includes: Determine the updated first mapping relationship; In the third transmission mode, the relevant information of the updated first mapping relationship is sent.

15. The method according to claim 14, characterized in that, The information related to sending the updated first mapping relationship includes: Based on the modification period and the repetition period, relevant information of the updated first mapping relationship is sent, wherein the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship, and the repetition period is used to indicate the time interval between two adjacent transmission opportunities of the same first mapping relationship within the same modification period.

16. The method according to claim 15, characterized in that, The modification period is an integer multiple of the repetition period.

17. The method according to claim 15, characterized in that, The method further includes: Based on the modification period and the first offset value, the boundary frame number between two adjacent modification periods is determined.

18. The method according to claim 17, characterized in that, The step of determining the boundary frame number between two adjacent modification periods based on the modification period and the first offset value includes: The boundary frame number of the modification period is determined according to the following formula: y mod z=w Wherein, y is associated with the boundary frame number of the modification period, z is associated with the length of the modification period, and w is associated with the first offset value.

19. The method according to any one of claims 15 to 18, characterized in that, The method further includes: A third message is sent, which indicates that the first mapping relationship has been updated.

20. The method according to claim 19, characterized in that, The third information is carried within the first-side link control information (SCI).

21. The method according to claim 20, characterized in that, The first side link control information (SCI) is dedicated to carrying the third information.

22. The method according to claim 20 or 21, characterized in that, The third information is transmitted in the first modification period of a plurality of modification periods, and the updated first mapping relationship is transmitted in the second modification period. The first modification period is located before the second modification period, and the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship.

23. The method according to any one of claims 1 to 6, characterized in that, In the third transmission mode, sending the relevant information of the first mapping relationship includes: In the resource pool corresponding to the third-side crosslink resource configuration, the relevant information of the first mapping relationship is sent using the third-side crosslink DRX configuration.

24. The method according to any one of claims 1 to 6, characterized in that, In the third transmission mode, sending the relevant information of the first mapping relationship includes: Under the third-side crosslink DRX configuration, the resource pool corresponding to the third-side crosslink resource configuration is used to send the relevant information of the first mapping relationship.

25. The method according to any one of claims 1 to 6, characterized in that, The first transmission mode or the third transmission mode includes a dedicated transmission mode for multicast or broadcast services.

26. The method according to any one of claims 1 to 6, characterized in that, The first transmission mode includes a data transmission mode for transmitting data. The third transmission mode includes a control information transmission mode for transmitting control information.

27. The method according to any one of claims 1 to 6, characterized in that, The first transmission mode or the third transmission mode is indicated by the network device, or The first transmission mode or the third transmission mode is pre-configured, or The first transmission mode or the third transmission mode is specified by the protocol.

28. The method according to any one of claims 1 to 6, characterized in that, When the first transmission mode corresponding to the first service corresponds to the first-side crosslink resource configuration and the first-side crosslink discontinuous reception DRX configuration, The first service is sent through the resource pool corresponding to the resource configuration of the first side link under the discontinuous reception DRX configuration of the first side link, or The first service is transmitted through the resource pool corresponding to the first side link resource configuration under the first side link discontinuous reception DRX configuration.

29. A wireless communication device, characterized in that, The device includes: The processing unit is configured to determine a first mapping relationship based on second information and a second mapping relationship of at least one service. The first mapping relationship is used to indicate a first transmission mode corresponding to the at least one service. The second mapping relationship is used to indicate a first transmission mode corresponding to the second information of the at least one service. The first transmission mode corresponds to a first-side crosslink resource configuration and / or a first-side crosslink discontinuous reception DRX configuration. The transceiver unit is used to send relevant information about the first mapping relationship in a third transmission mode, wherein the third transmission mode corresponds to the third-side crosslink resource configuration and / or the third-side crosslink DRX configuration. The second information includes at least one of the following: service quality configuration, congestion rate of resources used by the business, or business model.

30. The apparatus according to claim 29, characterized in that, At least two of the at least one services correspond to the same first transmission mode, wherein The at least two services use the same sidelink resource configuration and / or sidelink discontinuous reception DRX configuration in the same first transmission mode.

31. The apparatus according to claim 29, characterized in that, At least two of the at least one services correspond to different first transmission modes, wherein The sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two services in the different first transmission modes have overlapping portions; or The sidelink resource configurations and / or sidelink discontinuous reception DRX configurations used by the at least two services in the different first transmission modes do not overlap.

32. The apparatus according to claim 29, characterized in that, The first mapping relationship is indicated by the network device, or The first mapping relationship is pre-configured.

33. The apparatus according to claim 29, characterized in that, The second mapping is indicated by the network device, or, The second mapping relationship is pre-configured, or The second mapping relationship is defined by the protocol.

34. The apparatus according to claim 33, characterized in that, The relevant information of the first mapping relationship includes the attribute information of the at least one service.

35. The apparatus according to any one of claims 29 to 34, characterized in that, The relevant information for the first mapping relationship also includes the second mapping relationship.

36. The apparatus according to any one of claims 29 to 34, characterized in that, The relevant information of the first mapping relationship includes the first mapping relationship itself.

37. The apparatus according to any one of claims 29 to 34, characterized in that, The transceiver unit is specifically used to send fourth information in the third transmission mode. The fourth information is used to carry relevant information of the first mapping relationship, and the fourth information includes at least one of the following: Sidelink multicast radio resource control messages, sidelink broadcast radio resource control messages, sidelink media access control unit, and sidelink system information.

38. The apparatus according to claim 29, characterized in that, The processing unit is specifically used to determine the first transmission mode corresponding to the i-th service based on the identifier of the i-th service among the M services and the total number of the first transmission modes, i∈[1,M],M≥1.

39. The apparatus according to claim 38, characterized in that, The identifier of the i-th service includes the destination identifier (DST ID) of the i-th service.

40. The apparatus according to claim 38, characterized in that, The processing unit is specifically used to determine the first transmission mode corresponding to the i-th service according to the following formula. n=x mode N Wherein, the value of n is associated with the first transmission mode corresponding to the i-th service, the value of x is associated with the identifier of the i-th service, and the value of N is associated with the total number of the first transmission modes.

41. The apparatus according to any one of claims 38 to 40, characterized in that, The relevant information of the first mapping relationship includes at least one of the following: The total number of the first transmission modes, the first function, Wherein, the identifier of the i-th service and the total number of the first transmission modes are the independent variables of the first function, and the first transmission mode corresponding to the i-th service is the dependent variable of the first function.

42. The apparatus according to any one of claims 29 to 34, characterized in that, The processing unit is further configured to determine the updated first mapping relationship; The transceiver unit is also configured to send relevant information about the updated first mapping relationship in the third transmission mode.

43. The apparatus according to claim 42, characterized in that, The transceiver unit is specifically used to send relevant information about the updated first mapping relationship according to the modification period and the repetition period, wherein the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship, and the repetition period is used to indicate the time interval between two adjacent transmission opportunities of the same first mapping relationship within the same modification period.

44. The apparatus according to claim 43, characterized in that, The modification period is an integer multiple of the repetition period.

45. The apparatus according to claim 43, characterized in that, The processing unit is also configured to determine the boundary frame number between two adjacent modification periods based on the modification period and the first offset value.

46. ​​The apparatus according to claim 45, characterized in that, The processing unit is specifically used to determine the boundary frame number of the modification period according to the following formula: y mod z=w Wherein, y is associated with the boundary frame number of the modification period, z is associated with the length of the modification period, and w is associated with the first offset value.

47. The apparatus according to any one of claims 43 to 46, characterized in that, The transceiver unit is also used to send third information, which is used to indicate that the first mapping relationship has been updated.

48. The apparatus according to claim 47, characterized in that, The third information is carried within the first-side link control information (SCI).

49. The apparatus according to claim 48, characterized in that, The first side link control information (SCI) is dedicated to carrying the third information.

50. The apparatus according to claim 48 or 49, characterized in that, The third information is transmitted in the first modification period of a plurality of modification periods, and the updated first mapping relationship is transmitted in the second modification period. The first modification period is located before the second modification period, and the modification period is used to indicate the time interval between two adjacent update opportunities of the first mapping relationship.

51. The apparatus according to any one of claims 29 to 34, characterized in that, The transceiver unit is specifically used to send relevant information about the first mapping relationship in the resource pool corresponding to the third-side crosslink resource configuration, using the third-side crosslink DRX configuration.

52. The apparatus according to any one of claims 29 to 34, characterized in that, The transceiver unit is specifically used to send relevant information about the first mapping relationship by using the resource pool corresponding to the third-side crosslink resource configuration under the third-side crosslink DRX configuration.

53. The apparatus according to any one of claims 29 to 34, characterized in that, The first transmission mode or the third transmission mode includes a dedicated transmission mode for multicast or broadcast services.

54. The apparatus according to any one of claims 29 to 34, characterized in that, The first transmission mode includes a data transmission mode for transmitting data. The third transmission mode includes a control information transmission mode for transmitting control information.

55. The apparatus according to any one of claims 29 to 34, characterized in that, The first transmission mode or the third transmission mode is indicated by the network device, or The first transmission mode or the third transmission mode is pre-configured, or The first transmission mode or the third transmission mode is specified by the protocol.

56. The apparatus according to any one of claims 29 to 34, characterized in that, When the first transmission mode corresponding to the first service corresponds to the first-side crosslink resource configuration and the first-side crosslink discontinuous reception DRX configuration, The first service is sent through the resource pool corresponding to the resource configuration of the first side link under the discontinuous reception DRX configuration of the first side link, or The first service is transmitted through the resource pool corresponding to the first side link resource configuration under the first side link discontinuous reception DRX configuration.

57. A computer-readable storage medium, characterized in that, The device contains a computer program or instructions for implementing the method as described in any one of claims 1 to 28.

58. A computer program product, characterized in that, The computer program product includes a computer program that, when run, causes a computer to perform the method as described in any one of claims 1 to 28.

59. A chip system, characterized in that, Includes: a processor, used to retrieve and run computer programs from memory. This causes the communication device equipped with the chip system to perform the method as described in any one of claims 1 to 28.

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