WO2022133937A1 - 侧行链路通信方法、装置和系统 - Google Patents

侧行链路通信方法、装置和系统 Download PDF

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Publication number
WO2022133937A1
WO2022133937A1 PCT/CN2020/139129 CN2020139129W WO2022133937A1 WO 2022133937 A1 WO2022133937 A1 WO 2022133937A1 CN 2020139129 W CN2020139129 W CN 2020139129W WO 2022133937 A1 WO2022133937 A1 WO 2022133937A1
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WIPO (PCT)
Prior art keywords
terminal device
drx configuration
indication information
configuration
drx
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PCT/CN2020/139129
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English (en)
French (fr)
Inventor
彭文杰
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华为技术有限公司
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Priority to PCT/CN2020/139129 priority Critical patent/WO2022133937A1/zh
Publication of WO2022133937A1 publication Critical patent/WO2022133937A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of mobile communication technologies, and in particular, to a sidelink communication method, apparatus and system.
  • the terminal device can communicate with the terminal device through the network, and can also communicate directly.
  • Sidelink (SL) communication is a direct communication technology between terminal equipment and terminal equipment formulated by the 3rd Generation Partnership Project (3GPP). Data transmission can be directly performed between the terminal equipment and the terminal equipment through the side link without going through the network, which can effectively reduce the communication delay.
  • SL communication data is transmitted between two terminal devices through the PC5 interface.
  • the typical application of SL communication is the Vehicle to Everything (V2X) scenario.
  • V2X Vehicle to Everything
  • a vehicle is a terminal device.
  • SL communication can also be used in other scenarios, such as direct communication between wearable devices.
  • the terminal device can use the discontinuous reception (DRX) mechanism.
  • the DRX mechanism means that the terminal device turns off the transceiver for a period of time when there is no data transmission to reduce the power consumption.
  • One terminal device can establish multiple sidelinks to communicate with multiple terminal devices.
  • the inventor of the present application found that when a terminal device is configured with DRX to switch from the dormant period to the active period, the probability of multiple terminal devices sending data to the terminal device at the same time increases, thereby increasing the probability of conflict and affecting the sidelink communication. .
  • Embodiments of the present application provide a sidelink communication method, apparatus, and system.
  • a first terminal device establishes a first sidelink SL connection with a second terminal device, and the first terminal device establishes a first sidelink SL connection.
  • a second SL connection is established with the third terminal device.
  • the first terminal device as the receiver, determines the first SL DRX configuration corresponding to the first SL connection and the second SL DRX configuration corresponding to the second SL connection, and the second SL DRX configuration is different from the first SL DRX configuration.
  • This method can not only achieve better power saving effect of the first terminal device, but also solve the problem of increasing the probability of data transmission conflict.
  • the second terminal device serving as the sender sends indication information to the first terminal device to request to release the first SL DRX configuration, and the first terminal device responds to the request to release the first SL DRX configuration, so that the second terminal device can be satisfied.
  • the data transmission requirements of the business are reduced, and the data transmission delay is reduced.
  • a communication method is provided. It can be understood that the method of the first aspect can be performed by a first apparatus, and the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the first terminal device as an example.
  • the method includes: the first terminal device sends a first SL DRX configuration corresponding to the first SL connection to the second terminal device, and receives SL data from the second terminal device based on the first SL DRX configuration, and the first terminal device sends the third
  • the terminal device sends the second SL DRX configuration corresponding to the second SL connection, and receives SL data from the third terminal device based on the second SL DRX configuration, wherein the first SL connection is between the first terminal device and the second terminal device
  • the second SL connection is the SL connection between the first terminal device and the third terminal device, and the second SL DRX configuration is different from the first SL DRX configuration.
  • the first SL DRX configuration and the second SL DRX configuration include the same first configuration and different first offsets, and the first configuration includes a DRX cycle duration and a DRX start time offset, the first offset is an offset relative to the DRX start time offset, and different first offsets can cause the second terminal device and the third terminal device to start sending data to the first terminal device at different time points , thereby reducing the probability of conflict.
  • the first SL DRX configuration and the second SL DRX configuration include the same first configuration and different first frequency resource information
  • the first configuration includes a DRX cycle duration and a DRX start Time offset
  • the first frequency resource information indicates the frequency resource used for sending SL data to the first terminal device, or the frequency resource used for sending PSCCH to the first terminal device, or the frequency resource used for sending PSCCH and SL data to the first terminal device Since the first frequency resource information sent to the second terminal device and the third terminal device is different, even when the first terminal device transitions from the dormant period to the active period, the second terminal device and the third terminal device simultaneously send the A terminal device sends SL data, but because the frequency resources used by the second terminal device and the third terminal device are different, the first terminal device can successfully receive the data, thereby solving the problem of conflict. Since the second terminal device and the third terminal device use the same first configuration, the first terminal device can achieve a better power saving effect.
  • the first terminal device staggers the start time position of the DRX cycle corresponding to the first SL DRX configuration and the second SL DRX configuration when determining the parameter, for example, the first SL DRX configuration
  • the configuration and the second SL DRX configuration include different DRX start time offsets (drxStartOffset), thereby reducing the collision probability.
  • the first terminal device receives an air interface DRX configuration from the access network device, where the air interface DRX configuration is a DRX configuration used for air interface data transmission between the first terminal device and the access network device, and the first configuration comes from the air interface.
  • DRX configuration, or the parameter value of the air interface DRX configuration is used as the value of the corresponding parameter of the first configuration, thereby realizing the cooperation between the air interface DRX and the SL DRX to achieve a better power saving effect of the first terminal device.
  • the first terminal device receives service model information corresponding to the first SL connection from the second terminal device.
  • the service model information may include one or more of remaining packet delay budget information, data packet size, delay-sensitive information and service period, wherein the remaining packet delay budget information indicates the media access of the data packet to the second terminal device layer, or the physical layer, or the radio link layer, or the packet data convergence protocol layer, the remaining delay budget.
  • the first terminal device may determine the first SLDRX configuration based on the service model information.
  • first indication information is sent to the second terminal device, where the first indication information requests to obtain the service model information.
  • the first terminal device uniformly uses a set of SL DRX configurations to receive data sent by all other terminal devices (for example, the second terminal device and the third terminal device), and the activation period corresponding to the set of SL DRX configurations may cover all
  • the SL DRX configuration of other terminal equipment corresponds to the activation period, so as to achieve the purpose of simple processing by the first terminal equipment.
  • the first terminal device receives second indication information from the second terminal device, and the second indication information requests to release the first SL DRX configuration, or indicates data transmission requirement satisfaction information, and the data transmission requirement satisfaction information may include data transmission.
  • the demand cannot be met, or the data transmission delay cannot be met.
  • the first terminal device sends third indication information to the second terminal device, where the third indication information indicates to release the first SL DRX configuration.
  • a communication method is provided. It can be understood that the method of the second aspect can be performed by a first apparatus, and the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the first terminal device as an example.
  • the method includes: the first terminal device receives service model information corresponding to the first SL connection from the second terminal device; the first SL connection is an SL connection between the first terminal device and the second terminal device; the first terminal device is based on The service model information determines the first SL DRX configuration, and sends the first SL DRX configuration to the second terminal device; the first terminal device, as a receiver, receives the SL data sent by the second terminal device based on the first SL DRX configuration.
  • the method provided in the second aspect can not only achieve a better power saving effect of the first terminal device, but also better meet the data transmission requirements of the second terminal device.
  • the service model information may include one or more of remaining packet delay budget information, data packet size, delay-sensitive information, and service period, wherein the remaining packet delay budget information indicates that the data packet reaches the second terminal device.
  • first indication information is sent to the second terminal device, where the first indication information requests to obtain the service model information.
  • a communication method is provided. It can be understood that the method of the third aspect can be performed by a second apparatus, and the second apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the second apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the second terminal device as an example.
  • the method includes: the second terminal device sends the service model information corresponding to the first SL connection to the first terminal device; the first SL connection is the SL connection between the first terminal device and the second terminal device; the second terminal device receives data from the The first SL DRX configuration of the first terminal device; the first SL DRX configuration is determined based on the service model information; the second terminal device as a sender sends SL data to the first terminal device based on the first SL DRX configuration.
  • the service model information may include one or more of remaining packet delay budget information, data packet size, delay-sensitive information, and service period, wherein the remaining packet delay budget information indicates that the data packet reaches the second terminal device.
  • the second terminal device before sending the service model information to the first terminal device, the second terminal device receives first indication information from the first terminal device, where the first indication information requests to acquire the service model information.
  • a communication method is provided. It can be understood that the method of the fourth aspect can be performed by a first apparatus, and the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the first terminal device as an example.
  • the method includes: the first terminal device sends a first SL DRX configuration corresponding to the first SL connection to the second terminal device, the first SL connection is an SL connection between the first terminal device and the second terminal device, and the first SL DRX configuration
  • the configuration is the SL DRX configuration applied by the first terminal device as the receiver, or the first SL DRX configuration is the SL DRX configuration applied by the second terminal device as the sender;
  • the first terminal device receives the second indication from the second terminal device information; when it is determined to release the first SL DRX configuration, send third indication information to the second terminal device, where the third indication information indicates the release of the first SL DRX configuration.
  • the second indication information requests to release the first SL DRX configuration.
  • the second indication information indicates data transmission requirement satisfaction information
  • the data transmission requirement satisfaction information may include that the data transmission requirement cannot be satisfied, or the data transmission delay cannot be satisfied.
  • the second indication information may include a cause value, and the cause value may indicate that the data transmission requirement cannot be met.
  • the second SL connection is the first terminal device.
  • the first terminal device sends the fourth indication information to the third terminal device, and the fourth indication information indicates to release the second SL DRX configuration
  • the third terminal device releases the second SL DRX configuration based on the fourth indication information, and the service transmission of the third terminal device is no longer limited by the second SL DRX configuration, so that transmission requirements can be better satisfied.
  • the first terminal device after sending the third indication information to the second terminal device, the first terminal device sends fifth indication information to the access network device, where the fifth indication information indicates that the first SL DRX configuration is released or instructs the first terminal device All SL DRX configurations applied as the receiver are released, and the access network device can determine based on the fifth indication information, such as deleting the air interface DRX configuration, so that the service transmission requirements of the air interface are better satisfied.
  • the first terminal device before sending the first SL DRX configuration to the second terminal device, receives service model information corresponding to the first SL connection from the second terminal device, and the first terminal device determines the first SL connection based on the service model information.
  • a SL DRX configuration before sending the first SL DRX configuration to the second terminal device, the first terminal device receives service model information corresponding to the first SL connection from the second terminal device, and the first terminal device determines the first SL connection based on the service model information.
  • a SL DRX configuration before sending the first SL DRX configuration to the second terminal device.
  • a communication method is provided. It can be understood that the method of the fifth aspect can be performed by a second device, which can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • a second device which can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the second terminal device as an example.
  • the method includes: the second terminal device receives a first SL DRX configuration corresponding to the first SL connection from the first terminal device, the first SL connection is an SL connection between the first terminal device and the second terminal device, the first SL
  • the DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver, or the first SL DRX configuration is the SL DRX configuration applied by the second terminal device as the sender; the second terminal device sends a second indication to the first terminal device information.
  • the second indication information requests to release the first SL DRX configuration.
  • the second indication information indicates data transmission requirement satisfaction information
  • the data transmission requirement satisfaction information may include that the data transmission requirement cannot be satisfied, or the data transmission delay cannot be satisfied.
  • the second terminal device may determine whether to release the first SLDRX configuration.
  • the second terminal device determines to release the first SL DRX configuration, it sends second indication information to the first terminal device, where the second indication information indicates that the first SL DRX configuration is released.
  • the second terminal device when the data transmission requirement of the second terminal device as the sender cannot be satisfied, the second terminal device sends the second indication information to the first terminal device.
  • the second indication information may include a cause value, where the cause value indicates that the data transmission requirement cannot be satisfied.
  • the second terminal equipment receives third indication information from the first terminal equipment, the third indication information indicates to release the first SL DRX configuration; the second terminal equipment is based on The third indication information releases the first SL DRX configuration.
  • the second terminal device before receiving the first SL DRX configuration from the first terminal device, the second terminal device sends service model information corresponding to the first SL connection to the first terminal device, and the first SL DRX configuration is based on the service model information. definite.
  • a communication method is provided. It can be understood that the method of the sixth aspect may be performed by a first apparatus, and the first apparatus may be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the first apparatus may be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the first terminal device as an example.
  • the method includes: the first terminal equipment sends sixth indication information to the second terminal equipment, the sixth indication information requests the second terminal equipment to send the SL DRX configuration; the first terminal equipment receives the first SL DRX configuration from the second terminal equipment, The first SL DRX configuration is the SL DRX configuration applied by the first terminal device corresponding to the first SL connection as the receiver, and the first SL connection is the SL connection between the first terminal device and the second terminal device; the first terminal device is based on The first SL DRX configuration receives SL data from the second terminal device.
  • the power saving requirement of the first terminal device can be met.
  • the power of the first terminal device is less than the first threshold, it is determined to send sixth indication information.
  • the data transmission amount of the first terminal device is less than the second threshold, it is determined to send sixth indication information.
  • the operating system of the first terminal device instructs to enter the power saving mode, it is determined to send sixth indication information.
  • the sixth indication information includes a cause value
  • the cause value may include low power, low data transmission, or need to enter a power saving mode.
  • the first terminal device when the first terminal device determines that it is no longer necessary to apply the first SL DRX configuration, the first terminal device sends seventh indication information to the second terminal device, and the seventh indication information requests to release the first SL DRX configuration;
  • the eighth indication information of the second terminal device where the eighth indication information indicates to release the first SL DRX configuration; the first terminal device releases the first SL DRX configuration based on the eighth indication information, so as to better satisfy the requirements of the second terminal device. transmission needs.
  • a communication method is provided. It can be understood that the method of the seventh aspect can be performed by a second device, which can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • a second device which can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the second terminal device as an example.
  • the method includes: the second terminal device receives sixth indication information from the first terminal device, the sixth indication information requests the second terminal device to send the SL DRX configuration; the second terminal device sends the first SL DRX configuration to the first terminal device,
  • the first SL DRX configuration is the SL DRX configuration applied by the first terminal device corresponding to the first SL connection as the receiver, and the first SL connection is the SL connection between the first terminal device and the second terminal device; the second terminal device is based on The first SL DRX configuration sends SL data to the first terminal device.
  • the sixth indication information includes a cause value
  • the cause value may include low power, low data transmission, or need to enter a power saving mode.
  • the second terminal device after sending the first SLDRX configuration to the first terminal device, the second terminal device sends the first SLDRX configuration to the access network device. If the time-frequency resources used by the second terminal device to send SL data to the first terminal device are allocated by the access network device, the access network device may allocate resources for SL communication to the second terminal device based on the first SL DRX configuration, Specifically, the resource allocated to the second terminal device is within the activation period corresponding to the first SLDRX configuration, thereby avoiding waste of resources.
  • the second terminal device sends eighth indication information to the first terminal device, where the eighth indication information indicates to release the first SL DRX configuration; after sending the eighth indication information to the first terminal device, the second terminal device sends an
  • the network access device sends ninth indication information, the ninth indication information indicates that the first SL DRX configuration is released, and the access network device is no longer limited to the first SL DRX configuration after receiving the ninth indication information, so that it can be more flexible to allocate resources for SL communication to the second terminal device.
  • a communication method is provided. It can be understood that the method of the eighth aspect can be performed by a first apparatus, and the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the first terminal device as an example.
  • the method includes: the first terminal device and the second terminal device exchange service model information corresponding to the first SL connection, wherein the first SL connection is the SL connection between the first terminal device and the second terminal device.
  • the interaction between the first terminal device and the second terminal device corresponds to the first SL DRX configuration of the first SL connection, and the first SL DRX configuration is determined based on the service model information.
  • the first terminal device performs SL communication with the second terminal device based on the first SL DRX configuration.
  • the first terminal device and the second terminal device exchange service model information, including: the first terminal device receives the service from the second terminal device. model information; the first device and the second terminal device interacting the first SL DRX configuration, including: the first terminal device sends the first SL DRX configuration to the second terminal device; the first terminal device is based on the first SL DRX configuration
  • Performing SL communication with the second terminal device includes: the first terminal device receiving SL data from the second terminal device based on the first SL DRX configuration.
  • the method in the third aspect is also applicable.
  • the roles of one terminal device and the second terminal device can be interchanged.
  • the first terminal equipment and the second terminal equipment exchange service model information, including: the first terminal equipment sends the service model information to the second terminal equipment; the first equipment and the second terminal equipment exchange the first SL DRX configuration, including : the first terminal device receives the first SL DRX configuration from the second terminal device; the first terminal device performs SL communication with the second terminal device based on the first SL DRX configuration, including: the first terminal device sends a request to the second terminal device based on the first SL DRX configuration
  • the second terminal device sends SL data.
  • a communication method is provided. It can be understood that the method of the ninth aspect can be performed by a first apparatus, and the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor.
  • the following description will be given by taking the implementation of the method by the first terminal device as an example.
  • the method includes: a first SL DRX configuration corresponding to a first SL connection is exchanged between a first terminal device and a second terminal device, wherein the first SL connection is an SL connection between the first terminal device and the second terminal device.
  • the first terminal device exchanges second indication information with the second terminal device, and the second indication information requests to release the first SLDRX configuration.
  • the first terminal device and the second terminal device exchange third indication information, where the third indication information indicates to release the first SLDRX configuration.
  • the first terminal device releases the first SL DRX configuration.
  • the first terminal device and the second terminal device exchange the first SL DRX configuration, including: the first terminal sends the second terminal device to the second terminal device. 1 SL DRX configuration; the first terminal and the second terminal equipment exchange second indication information, including: the first terminal receives the second indication information from the second terminal equipment; the first terminal and the second terminal equipment exchange third indication information,
  • the method includes: the first terminal sends third indication information to the second terminal device.
  • the method of the fifth aspect is also applicable.
  • the roles of one terminal device and the second terminal device can be interchanged.
  • the first terminal equipment and the second terminal equipment exchange the first SL DRX configuration, including: the first terminal equipment receives the first SL DRX configuration from the second terminal equipment; the first terminal equipment and the second terminal equipment exchange the second indication information , including: the first terminal device sending second indication information to the second terminal device; the first terminal device interacting with the second terminal device third indication information, including: the first terminal device receiving the third indication information from the second terminal device .
  • the first terminal device and the second terminal device are interchanged.
  • a tenth aspect provides a communication method. It can be understood that the method of the tenth aspect can be performed by a first apparatus, and the first apparatus can be a communication device or a communication device capable of supporting the functions required by the communication device to implement the method, such as a chip, a chip system or a processor. The following description will be given by taking the implementation of the method by the first terminal device as an example.
  • the method includes: the first terminal device and the second terminal device exchange sixth indication information, and the sixth indication information requests to send the SL DRX configuration.
  • the first SL DRX configuration is exchanged between the first terminal device and the second terminal device, the first SL DRX configuration is the SL DRX configuration corresponding to the first SL connection, and the first SL connection is between the first terminal device and the second terminal device.
  • SL connection The first terminal device performs SL communication with the second terminal device based on the first SL DRX configuration.
  • the first terminal device and the second terminal device exchange sixth indication information, including: the first terminal device sends the first terminal device to the second terminal device.
  • Six indication information; the first terminal device and the second terminal device exchange the first SL DRX configuration, including: the first terminal device receives the first SL DRX configuration from the second terminal device; the first terminal device is based on the first SL DRX configuration and
  • the second terminal device performs SL communication, including: the first terminal device receives SL data from the second terminal device based on the first SL DRX configuration, where the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as a receiver.
  • the method of the above seventh aspect is also applicable.
  • the roles of one terminal device and the second terminal device can be interchanged.
  • the interaction between the first terminal device and the second terminal device of sixth indication information includes: the first terminal device receives the sixth indication information from the second terminal device; the first terminal device and the second terminal device interact with the first SL DRX configuration, including : the first terminal device sends the first SL DRX configuration to the second terminal device; the first terminal device performs SL communication with the second terminal device based on the first SL DRX configuration, including: the first terminal device sends the first SL DRX configuration to the second terminal device based on the first SL DRX configuration.
  • the two terminal devices send SL data, and the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the sender.
  • a communication device having a function of implementing the behavior in the method of the first aspect above.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the first aspect.
  • the communication device may be a chip, a chip system, or a processor.
  • the communication apparatus includes: a processing unit configured to determine a first SL DRX configuration corresponding to the first SL connection and a second SL DRX configuration corresponding to the second SL connection, wherein the first SL connection is the first SL DRX configuration.
  • the processing unit is further configured to determine the first SL DRX configuration and/or the second SL DRX configuration based on the service model information; the sending unit is configured to send the first SL DRX configuration to the second terminal device, and send the first SL DRX configuration to the third terminal device 2.
  • the sending unit is further configured to send first indication information to the second terminal device, the first indication information requests to obtain the service model information;
  • the receiving unit is configured to receive data from the second terminal device based on the first SL DRX configuration SL data of the second terminal device, and receiving SL data from the third terminal device based on the second SL DRX configuration, optionally, the receiving unit is further configured to receive service model information corresponding to the first SL connection from the second terminal device .
  • a communication device having a function of implementing the actions in the method of the second aspect above.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the second aspect.
  • the communication device may be a chip, a chip system, or a processor.
  • the communication apparatus includes: a receiving unit, configured to receive service model information corresponding to the first SL connection from the second terminal device, where the first SL connection is between the first terminal device and the second terminal device The SL connection; the processing unit is used to determine the first SL DRX configuration based on the service model information; the sending unit is used to send the first SL DRX configuration to the second terminal device, optionally, the sending unit is also used to receive data from the first SL DRX configuration.
  • first indication information is sent to the second terminal device, and the first indication information requests to obtain service model information.
  • a thirteenth aspect provides a communication device having a function of implementing the behavior in the method of the third aspect above.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the third aspect.
  • the communication device may be a chip, a chip system or a processor.
  • the communication apparatus includes: a sending unit, configured to send service model information corresponding to the first SL connection to the first terminal device, where the first SL connection is between the first terminal device and the second terminal device SL connection, the sending unit is further configured to send SL data to the first terminal device based on the first SL DRX configuration; the receiving unit is configured to receive the first SL DRX configuration from the first terminal device, and the first SL DRX configuration is based on the service If the model information is determined, optionally, the receiving unit is further configured to receive first indication information from the first terminal device, where the first indication information requests to acquire service model information.
  • These units or modules may perform the corresponding functions in the method examples of the third aspect. For details, please refer to the detailed descriptions in the method examples, which will not be repeated here.
  • a fourteenth aspect provides a communication device having a function of implementing the behavior in the method of the fourth aspect above.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the fourth aspect.
  • the communication device may be a chip, a chip system or a processor.
  • the communication apparatus includes: a sending unit, configured to send a first SL DRX configuration corresponding to the first SL connection to the second terminal device, where the first SL connection is a connection between the first terminal device and the second terminal device SL connection between, the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver, and the sending unit is also used to send the third indication information to the second terminal device, and the third indication information indicates that the first SL DRX is released configuration
  • the sending unit is further configured to send fifth indication information to the access network device, where the fifth indication information indicates that the first SL DRX configuration is released or indicates that the first terminal device is used as a receiver to apply all SL DRX configurations is released, optionally, the sending unit is further configured to send fourth indication information to the third terminal equipment, where the fourth indication information indicates the release of the second SL DRX configuration; the receiving unit is used for receiving the second indication from the second terminal equipment information, the second indication information requests to release
  • a fifteenth aspect provides a communication device having a function of implementing the behavior in the method of the fifth aspect.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the fifth aspect.
  • the communication device may be a chip, a chip system or a processor.
  • the communication apparatus includes: a receiving unit configured to receive a first SL DRX configuration corresponding to a first SL connection from a first terminal device, where the first SL connection is between the first terminal device and the second terminal device SL connection between, the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver, optionally, the receiving unit is also used to receive the third indication information from the first terminal device, the third indication information Instruct to release the first SL DRX configuration; the sending unit is used to send second indication information to the first terminal device, the second indication information requests to release the first SL DRX configuration, or indicates that data transmission requirements are satisfied information, or indicates that the first SL DRX The configuration is released; the processing unit is configured to release the first SL DRX configuration, and optionally, the processing unit is further configured to determine whether to release the first SL DRX configuration.
  • These units or modules may perform the corresponding functions in the method examples of the fifth aspect. For details, please refer to the detailed descriptions in
  • a sixteenth aspect provides a communication device having a function of implementing the behavior in the method of the sixth aspect.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the sixth aspect.
  • the communication device may be a chip, a chip system or a processor.
  • the communication apparatus includes: a sending unit, configured to send sixth indication information to the second terminal device, where the sixth indication information requests the second terminal device to send the SL DRX configuration, optionally, the sending unit further uses In sending the seventh indication information to the second terminal equipment, the seventh indication information requests to release the first SL DRX configuration; the receiving unit is used to receive the first SL DRX configuration from the second terminal equipment, and the first SL DRX configuration is corresponding to the first SL DRX configuration.
  • An SL-connected first terminal device is used as the SL DRX configuration of the receiver application, the first SL connection is an SL connection between the first terminal device and the second terminal device, and the receiving unit is further configured to receive data from the first SL DRX configuration based on the first SL DRX configuration.
  • the SL data of the second terminal device optionally, the receiving unit is further configured to receive eighth indication information from the second terminal device, where the eighth indication information indicates to release the first SL DRX configuration; optionally, the processing unit is used for Release the first SL DRX configuration based on the eighth indication information.
  • a seventeenth aspect provides a communication device having a function of implementing the behavior in the method of the seventh aspect.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the seventh aspect.
  • the communication device may be a chip, a chip system, or a processor.
  • the communication apparatus includes: a receiving unit, configured to receive sixth indication information from the first terminal device, where the sixth indication information requests the second terminal device to send the SL DRX configuration; a sending unit, configured to send the SL DRX configuration to the first terminal device A terminal device sends a first SL DRX configuration, and the first SL DRX configuration is an SL DRX configuration applied by the first terminal device corresponding to the first SL connection as the receiver, and the first SL connection is the connection between the first terminal device and the second terminal device.
  • the sending unit is also used to send SL data to the first terminal device based on the first SL DRX configuration, optionally, the sending unit is also used to send the first SL DRX configuration to the access network device, optional, The sending unit is further configured to send the eighth indication information to the first terminal device, where the eighth indication information indicates to release the first SL DRX configuration, optionally, the sending unit is further configured to send the ninth indication information to the access network device, the ninth The indication information indicates that the first SL DRX configuration is released.
  • a communication device may be a communication device implementing the method of any one of the above-mentioned first to tenth aspects, or configured to implement the above-mentioned first to tenth aspects.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions or data
  • the processor is coupled with the memory and the communication interface, and when the processor reads the computer program, instructions or data, the communication device is made to perform the functions of the first terminal device or the first terminal device in various aspects. Two methods performed by a terminal device.
  • the communication interface may be a transceiver in the communication device, for example, implemented by an antenna, a feeder, a codec, etc. in the communication device, or, if the communication device is a chip provided in the terminal device, the communication interface may is the input/output interface of the chip, such as input/output pins, etc.
  • the transceiver is used for the communication device to communicate with other devices.
  • a nineteenth aspect provides a chip system including a processor for implementing the method of any one of the first to tenth aspects.
  • the system-on-a-chip further includes a memory for storing program instructions and/or data.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • a communication system in a twentieth aspect, includes a communication device implementing the method of the first aspect, and a second terminal device and a third terminal device, or includes a communication device implementing the method of the second aspect and implementing the third A communication device of the method of the aspect, or a communication device including a communication device implementing the method of the fourth aspect and a communication device implementing the method of the fifth aspect, or a communication device including a communication device implementing the method of the sixth aspect and a communication device implementing the method of the seventh aspect , or a communication device implementing the method of the eighth aspect, or a communication device implementing the method of the ninth aspect, or a communication device implementing the method of the tenth aspect.
  • a twenty-first aspect provides a computer program product, the computer program product comprising: computer program code, when the computer program code is executed, the method performed by the first terminal device in the above aspects is executed, or The method performed by the second terminal device in the above aspects is caused to be performed.
  • a twenty-second aspect provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed, implements the method executed by the first terminal device in the above aspects; or The methods performed by the second terminal device in the above aspects are implemented.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the application is applied;
  • FIG. 2 is a schematic diagram of a DRX mechanism provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of an example of a communication method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a communication method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of another example of a communication method provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of another example of a communication method provided by an embodiment of the present application.
  • FIG. 7 is a flowchart of another example of a communication method provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 10 is another schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • V2X vehicle To other devices
  • V2X can include vehicle to network (Vehicle to Network, V2N), vehicle to vehicle (Vehicle to Vehicle, V2V), vehicle to infrastructure (Vehicle to Infrastructure, V2I), vehicle Vehicle to Pedestrian (V2P), Long Term Evolution-Vehicle (LTE-V), Internet of Vehicle (IoV), Machine Type Communication (MTC), Internet of Things (IoT), Long Term Evolution-Machine (LTE-M), Machine to Machine (M2M), Non-Terrestrial Network (NTN) systems Or other communication systems that evolve in the future.
  • V2N vehicle to network
  • Vehicle to Vehicle V2V
  • vehicle to Infrastructure Vehicle to Infrastructure
  • V2P vehicle to Pedestrian
  • LTE-V Long Term Evolution-Vehicle
  • IoV Internet of Vehicle
  • MTC Machine Type Communication
  • IoT Internet of Things
  • LTE-M Long Term Evolution-Machine
  • M2M
  • FIG. 1 is a schematic diagram of a communication system 100 suitable for this embodiment of the present application.
  • the communication system may include at least two terminal devices, such as the terminal devices 102 , 103 , 104 , and 105 in the communication system 100 shown in FIG. 1 .
  • the communication system may further include at least one network device, such as the network device 101 in the wireless communication system 100 shown in FIG. 1 .
  • a sidelink (sidelink, SL) can be established between the at least two terminal devices, and a sidelink is a link established between the terminal devices that can communicate directly, such as links 120, 121, SL in FIG. 122, 123, and 124, the terminal devices that have established sidelinks can communicate directly.
  • a terminal device can establish a side link with one or more terminal devices, and the terminal device can receive data sent by one or more terminal devices that have established a side link with the terminal device.
  • the interface between two terminal devices is called PC5 interface.
  • the terminal device in the communication system can also establish a wireless connection with the network device for data communication.
  • the terminal devices 102 and 103 respectively establish wireless links 110 and 111 with the network device.
  • the terminal device in the communication system may also not establish a wireless link with the network device, such as the terminal devices 104 and 105 shown in FIG. 1 , which is not limited in this application.
  • the above-mentioned side link may also be referred to as a side link, a side link, a straight-through link, etc., which is not limited in this embodiment of the present application.
  • a terminal device is a device with wireless transceiver function, which can be a fixed device, a mobile device, a handheld device, a wearable device, a vehicle, a vehicle-mounted device, or a device built into the above-mentioned device (for example, a communication module or system-on-chip, etc.).
  • the terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios.
  • UE User Equipment
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiments of the present application may be a mobile phone, a tablet computer, a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal device, a wireless device in industrial control Terminals, wireless terminals in IoT systems, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes Wireless terminals, cellular telephones, cordless telephones, Session Initiation Protocol (SIP) telephones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDA), wireless communication Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, in-vehicle communication devices, in-vehicle communication processing chips, wearable devices, terminal equipment in 5G networks or future evolved public land mobile communication networks (Public Land Mobile Network, PLMN) terminal equipment,
  • the sidelinks between terminal devices support broadcast communication, unicast communication and multicast communication.
  • Broadcast communication means that the terminal equipment sends broadcast service data to the outside world without encryption processing. Any other terminal equipment within the effective receiving range can receive the broadcast service data if they are interested in the broadcast service.
  • Unicast communication refers to point-to-point communication, which requires the establishment of a unicast connection between two end devices. After the unicast connection is established, the two terminal devices can communicate data based on the negotiated identifier, and the data can be encrypted or not. Compared with broadcast communication, in unicast communication, the unicast communication can only be performed between two terminal devices that have established a unicast connection.
  • Multicast communication refers to the communication between all terminal devices in a communication group.
  • Any terminal device in the group can send and receive data of the multicast service. Regardless of the type of propagation, when a terminal device sends data, it will send a source ID and a target ID along with the data, where the source ID is allocated by the originating terminal device itself.
  • the meaning of the target identifier is different for different propagation types.
  • the target identifier is the identifier assigned by the peer terminal device for the unicast connection.
  • the target identifier is the identifier corresponding to the broadcast service.
  • the target identifier has different meanings.
  • the target identifier is an identifier corresponding to the communication group.
  • the basic mechanism of DRX is to configure a DRX cycle (DRX Cycle) for the terminal device as the receiver.
  • DRX Cycle a DRX cycle
  • the DRX cycle consists of an active period and a dormant period (or called an inactive period).
  • the DRX cycle consists of an active period and a dormant period (or called an inactive period).
  • a terminal device monitors and receives physical control channels to receive data during the active period.
  • the dormant period Turn off the receiver to reduce power consumption.
  • the DRX configuration may include the following parameters in Table 1, but is not limited to the following parameters:
  • the terminal device In most cases, after a terminal device is scheduled to transmit data in a certain subframe, it is likely to continue to be scheduled in the next few subframes. If it waits until the next DRX cycle to transmit the data, it will bring to extra delay. In order to reduce this kind of delay, after being scheduled, the terminal device will continue to be in the active period, that is, it will continue to monitor the physical control channel for a period of time.
  • the implementation mechanism is: whenever the terminal device is scheduled to transmit data for the first time, it will start (or restart) the sleep timer, and the terminal device will remain in the active state until the timer expires.
  • the duration of the sleep timer specifies the duration that the terminal device remains in the active state after successfully decoding a physical control signaling indicating initial transmission. That is, the timer is restarted once every time the terminal device has initially transmitted data to be scheduled. In one DRX cycle, when both the active period timer and the sleep timer stop running (or do not run), the terminal device enters the sleep period
  • the choice of the DRX cycle involves a trade-off between the end device's battery saving and transmission delay. From one aspect, a long DRX cycle is beneficial to prolong the battery life of the terminal device, such as web browsing. When the user is reading the downloaded web page, if the terminal device continues to monitor the physical control channel at this time, the power of the terminal device is wasted. On the other hand, when there is new data transmission, a shorter DRX cycle is conducive to faster response and lower data transmission delay, such as a user requesting another web page.
  • the network device determines the DRX configuration and sends it to the terminal device.
  • the DRX configuration used in the SL connection eg, unicast connection
  • the SL DRX configuration is referred to as the SL DRX configuration.
  • any terminal device can act as both a sender of SL data and a receiver of SL data, that is, the connection between the two terminal devices has two
  • Each data transmission direction can correspond to a set of SL DRX configurations. For each data transfer direction, there are two ways to determine the SL DRX configuration:
  • Mode 1 The terminal device that is the receiver of the SL data determines the SL DRX configuration of the data transmission direction, and sends the SL DRX configuration to the peer terminal device, which acts as the sender of the SL data based on the SL DRX configuration Send SL data to the terminal device, and the terminal device receives the SL data sent from the opposite terminal device based on the SL DRX configuration;
  • Mode 2 The terminal device as the sender of the SL data determines the SL DRX configuration of the data transmission direction, and sends the SL DRX configuration to the opposite terminal device, and the terminal device sends the SL to the opposite terminal device based on the SL DRX configuration data, the peer terminal device, as the receiver of the SL data, receives the SL data sent by the terminal device based on the SL DRX configuration.
  • One terminal device can establish an SL connection with each of a plurality of terminal devices.
  • the inventor of the present application finds that since multiple other terminal devices use the same set of SL DRX configuration, when the When the terminal device is in the dormant period, if other terminal devices have data to be sent to the terminal device, the data cannot be sent at this time, and it is necessary to wait until the terminal device enters the activation period.
  • the terminal equipment changes from the dormant period to the active period, due to the backlog of data in the dormant period, other multiple terminal equipments may start to send data to the terminal equipment at the same time, thus increasing the collision probability and affecting the sidelink communication.
  • the conflicts include, for example, the terminal device cannot receive data sent by multiple terminal devices at the same time, or the terminal device supports receiving data sent by multiple terminal devices at the same time, but these multiple terminal devices use the same time-frequency resources and interfere with each other cause the reception to fail.
  • the two terminal devices have different requirements for power saving or service data transmission, which may change with time, it is necessary to optimize the current DRX mechanism to meet the needs of service data transmission or power saving need.
  • FIG. 3 is a flowchart of the method.
  • the method may be performed by at least three communication devices, eg a first terminal device, a second terminal device and a third terminal device.
  • the first terminal device, the second terminal device and the third terminal device may be various forms of terminal devices described above or communication devices or chips capable of supporting the functions required by the terminal device to implement the method.
  • the specific implementation steps are as follows:
  • the first terminal device sends the first SL DRX configuration to the second terminal device.
  • the second terminal device receives the first SL DRX configuration from the first terminal device.
  • the first terminal device may establish an SL connection with each of the plurality of terminal devices.
  • an SL connection is established between the first terminal device and the second terminal device, which is referred to as a first SL connection here.
  • An SL connection is established between the first terminal device and the third terminal device, which is referred to as a second SL connection here.
  • the first terminal device can also establish connections with more terminal devices, such as a fourth terminal device, a fifth terminal device, etc.
  • the first terminal device and the second terminal are used.
  • the device and the third terminal device respectively establish an SL connection as an example for description, and scenarios of more terminal devices are also within the protection scope of this embodiment.
  • the power saving effect is for the first terminal device.
  • the first terminal device determines the SL DRX configuration in this data transmission direction, which can make other terminal devices Sending data to the first terminal device at the same or similar time is beneficial for the first terminal device to achieve a better power saving effect.
  • the first terminal device may determine a set of SL DRX configurations, here the set of SL DRX configurations is referred to as the first configuration, and the first configuration may include a combination of one or more of the DRX parameters in Table 1 above, such as the first configuration.
  • the configuration may include a DRX cycle duration and a DRX start time offset, and the first terminal device sends the first configuration to multiple other terminal devices that have established SL connections.
  • the first terminal device monitors the physical control channel during the activation period of the first configuration, specifically, it can monitor the physical sidelink control channel (Physical Sidelink Control CHannel, PSCCH), and other multiple terminal devices are in the first configuration.
  • PSCCH Physical Sidelink Control CHannel
  • data is sent to the first terminal device. Due to the backlog of data in the dormant period, the probability of conflict increases, which affects sidelink communication.
  • the first terminal device may determine a first SL DRX configuration corresponding to the first SL connection and a second SL DRX configuration corresponding to the second SL connection, where the second SL DRX configuration is different from the first SL DRX configuration.
  • the first SL DRX configuration and the second SL DRX configuration may include the same first configuration and different first offsets, that is, the first SL DRX configuration and the second SL DRX configuration Including a first configuration and a first offset, the content of the first configuration included in the first SL DRX configuration is the same as the content of the first configuration included in the second SL DRX configuration, and the content of the first offset included in the first SL DRX configuration Different from the content of the first offset included in the second SL DRX configuration.
  • the first configuration may include DRX cycle duration and DRX start time offset.
  • the first offset is an offset relative to the DRX start time offset (drxStartOffset) included in the first configuration, or in other words, the first offset is an offset relative to the start time position of the DRX cycle corresponding to the first configuration. shift.
  • the first SL DRX configuration and the second SL DRX configuration include the same first configuration.
  • the first configuration is used as a common configuration, and on the basis of the common configuration, the first terminal device determines different first offsets for the second terminal device and the third terminal device, so that the second terminal device and the third terminal device Start sending data to the first terminal device at different time points, thereby reducing the probability of collision.
  • the second terminal device and the third terminal device send data to the first terminal device in a similar time period, which is beneficial to the power saving of the first terminal device.
  • the first offset may take a value of 0.
  • the first configuration can be considered as the SL DRX configuration used by the first terminal device as the receiver.
  • different first bias settings are set for the first terminal device and the second terminal device. The shift causes the first terminal device and the second terminal device to start sending data at different time points, so as to reduce the collision probability.
  • the time point t1 is the start time position of the DRX cycle corresponding to the first configuration, which is determined by the DRX start time offset (drxStartOffset) included in the first configuration.
  • the first offset in the first SL DRX configuration is "offset 1", then in a DRX cycle, the second terminal device can start to move to the A terminal device sends data.
  • the first offset in the second SL DRX configuration is "offset 2", then in one DRX cycle, the second terminal device can start to move to the A terminal device sends data.
  • the values of offset 1 and offset 2 are different, the probability of collision can be reduced.
  • the value of offset 1 or offset 2 may be 0. For example, when the value of the offset 1 is 0, the time point t2 and the time point t1 coincide.
  • the first configuration may include an activation period timer duration (onDurationTimer), that is, the first SL DRX configuration and the second SL DRX configuration may include the same onDurationTimer, that is, the duration of the two onDurationTimer timers is the same.
  • onDurationTimer can be used as the actual activation period timer duration, or "onDurationTimer" minus "first offset” can be used as the actual activation period timer duration, when there is no data transmission
  • the activation period timers of the second terminal equipment and the third terminal equipment time out at the same time, so that the first terminal equipment can enter the sleep period to save power.
  • the first terminal equipment can enter the Dormant period.
  • the first SL DRX configuration and the second SL DRX configuration may include different onDurationTimers, and the second terminal device and the third terminal device use the onDurationTimer included in the respective SL DRX configurations as the actual activation period timer duration.
  • the first SL DRX configuration and the second SL DRX configuration may include the same first configuration and different first frequency resource information, that is, the first SL DRX configuration and the second SL DRX configuration
  • the DRX configuration includes first configuration and first frequency resource information
  • the content of the first configuration included in the first SL DRX configuration is the same as the content of the first configuration included in the second SL DRX configuration
  • the first frequency included in the first SL DRX configuration The content of the resource information is different from the content of the first frequency resource information included in the second SL DRX configuration.
  • the content of the first frequency resource information here is different, which may mean that the frequency resources corresponding to the two do not overlap.
  • the first configuration may include DRX cycle duration and DRX start time offset.
  • the first frequency resource information indicates a frequency resource used for sending SL data to the first terminal device, or a frequency resource used for sending PSCCH to the first terminal device, or a frequency resource used for sending PSCCH and SL data to the first terminal device. Since the first frequency resource information sent to the second terminal device and the third terminal device is different, even when the first terminal device changes from the dormant period to the active period, the second terminal device and the third terminal device simultaneously send the SL data, but since the frequency resources used by the second terminal device and the third terminal device are different, the first terminal device can successfully receive the data, thus solving the problem of conflict. Since the second terminal device and the third terminal device use the same first configuration, the first terminal device can achieve a better power saving effect.
  • the first SL DRX configuration and the second SL DRX configuration may not include a common configuration, but each include the DRX parameters in Table 1 above.
  • Each DRX parameter may have different values, but in order to reduce the collision probability, the first terminal device staggers the start time position of the DRX cycle corresponding to the first SL DRX configuration and the second SL DRX configuration when determining the parameter, for example, the first SL DRX configuration
  • the first SL DRX configuration and the second SL DRX configuration include different DRX start time offsets (drxStartOffset).
  • the staggered time interval can be set to be smaller, so that the activation period of the first terminal device can be set to be shorter, so that both The conflict probability is reduced and the power saving effect is achieved.
  • the above-mentioned second terminal equipment and third terminal equipment can also be replaced by a second terminal equipment group and a third terminal equipment group, and the terminal equipment in the terminal equipment group has established an SL connection with the first terminal equipment.
  • Terminal equipment the first terminal equipment sends the same SL DRX configuration to the terminal equipment in one terminal equipment group, and sends different SL DRX configurations to the terminal equipment in different terminal equipment groups, so as to reduce the collision probability.
  • the first terminal device may establish a radio resource control (Radio Resource Control, RRC) connection with the access network device, that is, the first terminal device is in an RRC connection state.
  • RRC Radio Resource Control
  • This access network device is the serving access network device of the first terminal device.
  • the interface between the first terminal device and the access network device is called an air interface.
  • the access network device may send an air interface DRX configuration to the first terminal device, where the air interface DRX configuration is a DRX configuration used for air interface data transmission between the first terminal device and the access network device.
  • the first terminal device if one of the air interface DRX and the SL DRX is in the active period, the first terminal device cannot turn off the receiver, and the effect of power saving cannot be achieved.
  • One method is to determine the SL DRX configuration of the SL communication based on the air interface DRX configuration, so that, for example, in the case of neither air interface data transmission nor SL interface data transmission, the activation period corresponding to the air interface DRX configuration corresponds to the SL DRX configuration.
  • the activation period of the SL DRX configuration is the same or similar, in other words, the dormancy period corresponding to the air interface DRX configuration and the dormancy period corresponding to the SL DRX configuration are the same or similar.
  • the first terminal device receives the air interface DRX configuration from the serving access network device.
  • the network access device sends an RRC reconfiguration message, where the RRC reconfiguration message includes the air interface DRX configuration.
  • the air interface DRX configuration is a DRX configuration used for air interface data transmission between the first terminal device and the serving access network device.
  • the content of the first configuration may come from the DRX configuration of the air interface, that is, the content of the parameters of the DRX configuration of the air interface may be used as the content of the corresponding parameters of the first configuration, or in other words, the content of the air interface DRX configuration
  • the DRX configuration is used as the first configuration. Therefore, the cooperation between the air interface DRX and the SL DRX is realized to achieve a better power saving effect of the first terminal device.
  • the first SL DRX configuration and the second SL DRX configuration may be determined based on the air interface DRX configuration, for example, the start time position of the DRX cycle corresponding to the first SL DRX configuration or the second SL DRX configuration is set to The start time position of the DRX cycle corresponding to the air interface DRX configuration is the same or similar, so that the activation period of the air interface is the same or similar to the activation period of the SL communication to achieve better power saving effect of the first terminal device.
  • the first terminal device receives the SL DRX configuration broadcasted by the cell system information from the serving access network device.
  • the content of the first configuration may come from the SL DRX configuration, that is, the parameter content of the SL DRX configuration may be used as the content of the corresponding parameter of the first configuration, or, in other words, the SL DRX configuration configuration as the first configuration.
  • the first SL DRX configuration and the second SL DRX configuration may be determined based on the SL DRX configuration, for example, the start time position of the DRX cycle corresponding to the first SL DRX configuration or the second SL DRX configuration is set The start time position of the DRX cycle corresponding to the SL DRX configuration is the same or similar.
  • the second terminal device sends SL data to the first terminal device based on the first SL DRX configuration.
  • the first terminal device receives the SL data from the second terminal device based on the first SL DRX configuration.
  • the first terminal device sends the second SL DRX configuration to the third terminal device.
  • the third terminal device receives the second SL DRX configuration from the first terminal device.
  • the third terminal device sends SL data to the first terminal device based on the second SL DRX configuration.
  • the first terminal device receives the SL data from the third terminal device based on the second SL DRX configuration.
  • step S320 and step S330 are after step S310, step S350 and step S360 are after step S340, other than this, the execution sequence of other steps is not limited.
  • the first terminal device receives SL data from the second terminal device based on the first SL DRX configuration, and receives SL data from the third terminal device based on the second SL DRX configuration, that is to say , the first terminal device uses two sets of SL DRX configurations for different terminal devices respectively.
  • the first terminal device may not distinguish which terminal device it is aimed at, but uniformly use a set of SL DRX configurations to receive data sent by all other terminal devices, and the activation period corresponding to the set of SL DRX configurations can cover all other terminal devices.
  • the SL DRX configuration corresponds to the activation period, the advantage of which is that the processing of the first terminal device is simpler.
  • the first terminal device uses the SL DRX configuration in Figure 4-a to receive the SL data sent by the second terminal device and the third terminal device, and the second terminal device uses Figure 4-b to send the SL data to the first terminal device To send SL data, the third terminal device sends the SL data to the first terminal device using Figure 4-c.
  • the first terminal device may determine the SL DRX configuration based on the service transmission model information.
  • the first terminal device can obtain the service model information corresponding to the SL connection from the application layer of the first terminal device, and can also obtain it from the terminal device of the opposite end, as shown in FIG. ):
  • the first terminal device receives service model information corresponding to the first SL connection from the second terminal device.
  • the second terminal device sends the service model information corresponding to the first SL connection to the first terminal device. That is, the first terminal device and the second terminal device exchange service model information corresponding to the first SL connection.
  • the service model information may be service model information of the data sent by the second terminal device as the sender.
  • the service model information may include one or more of remaining packet delay budget information, data packet size, delay-sensitive information and service period, wherein the remaining packet delay budget information indicates that the data packet arrives at the media access layer of the second terminal device , or the physical layer, or the radio link layer, or the remaining delay budget at the packet data convergence protocol layer.
  • step S500 may also be performed:
  • the first terminal device sends first indication information to the second terminal device, where the first indication information requests to acquire service model information corresponding to the first SL connection.
  • the second terminal device receives the first indication information from the first terminal device.
  • step S520 may also be performed:
  • the first terminal device sends service model information corresponding to the first SL connection to the access network device.
  • the access network device receives service model information corresponding to the first SL connection from the first terminal device.
  • the access network device may, for example, determine and send the air interface DRX configuration to the first terminal device based on the service model information.
  • the method shown in FIG. 5 is taken as an example in which the first terminal device obtains the service model information of the corresponding SL connection from the second terminal device. This method can also be applied to the first terminal device from other terminal devices, such as The third terminal device and the fourth terminal device acquire the service model information of the corresponding SL connection.
  • the method shown in FIG. 5 may be implemented together with the embodiment of FIG. 3 , or may be implemented as a separate embodiment. When implemented in conjunction with the embodiment of FIG.
  • the first terminal device obtains the first service model information corresponding to the first SL connection from the second terminal device, and the first terminal device obtains the first service model information corresponding to the first SL connection from the second terminal device.
  • a terminal device acquires the second service model information corresponding to the second SL connection from the third terminal device.
  • the first terminal device determines the first SL DRX configuration and the second SL DRX configuration based on the service model information, so that the SL DRX configuration matches the service model, for example, the remaining packet delay budget information included in the first service model information indicates 80 milliseconds , the remaining packet delay budget information included in the second service model information indicates 40 milliseconds, then the first terminal device determines that the DRX cycle of the first SL DRX configuration and the second SL DRX configuration is 40 milliseconds to meet the delay requirement of data transmission . In addition, the first terminal device may determine the value of the first offset based on the service model information.
  • the first terminal device can set a shorter value of the first offset for the third terminal device than that of the second terminal device, so that the third terminal device can send data earlier than the second terminal device to meet the delay requirement of data transmission .
  • the first terminal device acquires the service model information corresponding to the first SL connection from the second terminal device.
  • the first terminal device may determine the first SL DRX configuration based on the service model information, and send the first SL DRX configuration to the second terminal device (that is, the first terminal device and the second terminal device interact with the first SL DRX configuration), the first SL DRX configuration.
  • the terminal device receives the SL data from the second terminal device based on the first SL DRX configuration, and accordingly, the second terminal device sends the SL data to the second terminal device based on the first SL DRX configuration. For example, if the remaining packet delay budget information included in the service model information indicates that it is 80 milliseconds, the first terminal device may determine that the DRX cycle of the first SL DRX configuration is 80 milliseconds.
  • the first terminal device sends first indication information, the first indication information requests to obtain the service model information corresponding to the first SL connection, the first terminal device sends the service model information corresponding to the first SL connection to the second terminal device, and the second terminal device sends the service model information corresponding to the first SL connection to the second terminal device.
  • the device sends the service model information corresponding to the first SL connection to the access network device, which is not repeated here.
  • the first terminal device as a receiver can determine and send the SLDRX configuration to other terminal devices.
  • the inventor of the present application found that if other terminal devices have new services (for example, delay-sensitive services), other terminal devices can only send data to the first terminal device during the activation period corresponding to the SL DRX configuration, resulting in The delay increases, which cannot meet the transmission requirements of the service.
  • FIG. 6 is a flowchart of the method.
  • the method may be performed by at least two communication devices, eg a first terminal device and a second terminal device.
  • the first terminal device and the second terminal device may be various types of terminal devices described above or communication devices or chips capable of supporting the functions required by the terminal device to implement the method.
  • the specific implementation steps are as follows:
  • the first terminal device sends the first SL DRX configuration to the second terminal device.
  • the second terminal device receives the first SL DRX configuration from the first terminal device. That is, the first terminal device exchanges the first SLDRX configuration with the second terminal device.
  • a first SL connection is established between the first terminal device and the second terminal device.
  • the first terminal device as the receiver determines the first SL DRX configuration corresponding to the first SL connection
  • the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver on the first SL connection
  • the first SL DRX configuration is the SL DRX configuration applied by the second terminal device as the sender on the first SL connection.
  • the first SL DRX configuration may include the DRX parameters in the above-mentioned Table 1, and the specific method for determining, for example, can refer to the method corresponding to FIG.
  • this embodiment can be implemented independently, or can be implemented in combination with the method corresponding to FIG. 5,
  • the first terminal device receives service model information from the second terminal device. For details, refer to the method corresponding to FIG. 5 , which will not be repeated here.
  • the first terminal device sends the first SLDRX configuration to the second terminal device.
  • the second terminal device sends second indication information to the first terminal device.
  • the first terminal device receives the second indication information from the second terminal device. That is, the first terminal device exchanges the second indication information with the second terminal device.
  • the second terminal device determines that the first SL DRX configuration is no longer suitable, for example, a new service arrives on the second terminal device, and the first SL DRX configuration causes the transmission requirement (for example, the delay requirement) of the service cannot be satisfied, the first SL DRX configuration
  • the second terminal device sends the second indication information to the first terminal device.
  • the second indication information requests to release the first SL DRX configuration.
  • the second indication information includes a reason value, and the reason value indicates the reason for requesting to release the first SL DRX configuration, and the reason may be, for example, the data transmission requirement cannot be satisfied, or the data transmission delay cannot be satisfied.
  • the next step may perform S630.
  • the second indication information indicates data transmission requirement satisfaction information, and the data transmission requirement satisfaction information includes that the data transmission requirement cannot be satisfied, or the data transmission delay cannot be satisfied, etc.
  • the second indication information It can be used as a consideration factor for the first terminal device to determine whether to release the first SLDRX configuration.
  • the next step may perform S630.
  • the second indication information indicates that the first SL DRX configuration is released.
  • the second terminal device may determine whether to release the first SLDRX configuration.
  • the second terminal device determines to release the first SL DRX configuration, it sends the second indication information to the first terminal device, and releases the first SL DRX configuration (that is, step S640 is performed).
  • the first terminal device releases the first SLDRX configuration.
  • the first terminal device sends third indication information to the second terminal device.
  • the second terminal device receives the third indication information.
  • the third indication information instructs the second terminal device to release the first SL DRX configuration. That is, the first terminal device exchanges the third indication information with the second terminal device.
  • step S620 This step is optional. For the third implementation in step S620, this step may not be performed.
  • the first terminal device determines whether to release the first SL DRX configuration after receiving the second indication information. If the first terminal device determines to release the first SL DRX configuration, it sends third indication information to the second terminal device and releases the first SL DRX configuration, and the second terminal device releases the first SL DRX configuration after receiving the third indication information ( That is, step S640) is performed; if the first terminal device determines not to release the first SLDRX configuration, this step is not performed, and the process ends.
  • the second terminal device releases the first SL DRX configuration.
  • the second terminal device releases the first SL DRX configuration, and the second terminal device sends SL data to the first terminal device is no longer limited by the first SL DRX configuration, and can immediately send data to the first terminal device when needed, so that it can Solve the problem that the service transmission requirement of the second terminal device cannot be satisfied due to the configuration of the first SL DRX.
  • the receiver of the first terminal device is always on at any time to listen to the physical control channel to receive data that may be sent to the first terminal device. Therefore, after the first SL DRX configuration is released, the receiver of the first terminal device needs to be always on.
  • step S620 If the first terminal device establishes an SL connection with other terminal devices in addition to the SL connection with the second terminal device and sends the SL DRX configuration to it, taking the third terminal device as an example, before step S620, the first terminal device The terminal device sends the second SL DRX configuration corresponding to the second SL connection (the second SL connection is the SL connection between the first terminal device and the third terminal device) to the third terminal device, that is, step S611, even if there is a second SL connection. With the second SL DRX configuration, the first terminal device cannot save power. Therefore, optionally, after step S620 or step S630, step S631 is performed:
  • the first terminal device sends fourth indication information to the third terminal device.
  • the third terminal device receives the fourth indication information.
  • the fourth indication information instructs the third terminal device to release the second SLDRX configuration.
  • the first terminal device sends fourth indication information to the third terminal device and releases the second SL DRX configuration. After receiving the fourth indication information, the third terminal device releases the second SLDRX configuration (that is, executes step S641).
  • the third terminal device releases the second SL DRX configuration.
  • the third terminal device releases the second SL DRX configuration, and the third terminal device sends SL data to the first terminal device is no longer limited by the second SL DRX configuration, and can immediately send data to the first terminal device when needed, so that the service transmission needs can be better met.
  • step S650 may also be performed:
  • the first terminal device sends fifth indication information to the access network device.
  • the access network device receives the fifth indication information sent by the first terminal device.
  • the fifth indication information indicates that the first SL DRX configuration is released, or the second SL DRX configuration, or all the SL DRX configurations that the first terminal device applies as the receiver is released.
  • the access network device is a serving access network device of the first terminal device.
  • the access network device may determine based on the fifth indication information, for example, delete the DRX configuration of the air interface, so that the service transmission requirement of the air interface can be better satisfied.
  • the method shown in FIG. 3 may be implemented independently, or the three may be implemented together, or any two of them may be implemented together.
  • the method please refer to the respective related descriptions, which will not be repeated here.
  • the above-mentioned FIG. 6 is described in the data transmission direction of the first terminal device as the SL data receiver, and for the data transmission direction of the first terminal device as the SL data sender ( That is, the second terminal device is used as the SL data receiver), and the above-mentioned method in FIG. 6 is also applicable.
  • the roles of the first terminal device and the second terminal device can be exchanged.
  • the first terminal device sends the first SL DRX configuration
  • the first terminal device sends second indication information to the second terminal device
  • the second terminal device sends third indication information to the first terminal device, which will not be repeated here.
  • FIG. 7 is a flowchart of the method.
  • the method may be performed by at least two communication devices, eg a first terminal device and a second terminal device.
  • the first terminal device and the second terminal device may be various types of terminal devices described above or communication devices or chips capable of supporting the functions required by the terminal device to implement the method.
  • the specific implementation steps are as follows:
  • the first terminal device sends sixth indication information to the second terminal device.
  • the second terminal device receives the sixth indication information from the first terminal device. That is, the first terminal device and the second terminal device exchange sixth indication information.
  • a first SL connection is established between the first terminal device and the second terminal device.
  • mode 1 is that the terminal device serving as the SL data receiver determines the SL DRX configuration of the data transmission direction
  • mode 2 is that the terminal device serving as the SL data sender determines the data.
  • SL DRX configuration for the transmit direction With regard to method 2, the inventors of the present application found that this method is not conducive to meeting the power saving requirements of the receiver in some scenarios.
  • the first terminal device acts as the receiver, and when the power of the first terminal device is relatively low When it is less, for example, when it is less than or equal to a predetermined first threshold, the first terminal device has a strong demand for power saving to avoid power-down shutdown, or when the first terminal device recognizes that the data transmission amount is less than or equal to the predetermined first threshold When the second threshold is reached, or when the operating system of the first terminal device instructs to enter the power saving mode.
  • the first terminal device determines and sends the sixth indication information to the second terminal device.
  • the sixth indication information requests the second terminal device to send the SL DRX configuration.
  • the sixth indication information includes a cause value, and the cause value may be, for example, low power, low data transmission, or need to enter a power saving mode, and the like.
  • the sixth indication information indicates power saving demand information of the first terminal device
  • the power saving demand information may include power consumption information of the first terminal device, or data transmission volume information, or need to enter Indication information of the power saving mode, etc.
  • the power saving demand information can be used as a consideration factor for the second terminal device to determine whether to configure the SL DRX configuration for the first terminal device.
  • the second terminal device sends the first SL DRX configuration to the first terminal device.
  • the first terminal device receives the first SL DRX configuration from the second terminal device. That is, the first terminal device exchanges the first SLDRX configuration with the second terminal device.
  • the second terminal device may determine, based on the sixth indication information, whether to configure the first terminal device corresponding to the first SL connection as the first SL DRX configuration applied by the receiver.
  • the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver on the first SL connection, that is, the first SL DRX configuration is applied on the first SL connection by the second terminal device as the sender.
  • SL DRX configuration How to determine specifically may depend on the implementation of the second terminal device. For example, when the power of the first terminal device is low, the configuration is determined, otherwise it is not configured.
  • the first SL DRX configuration may include the DRX parameters in Table 1 above. If the configuration is determined, the first SLDRX configuration is sent to the first terminal device. The first terminal device applies the first SL DRX configuration to receive the SL data from the second terminal device, thereby meeting the power saving requirement of the first terminal device.
  • the second terminal device sends SL data to the first terminal device based on the first SL DRX configuration.
  • the second terminal device as a sender, sends SL data to the first terminal device based on the first SL DRX configuration.
  • the first terminal device as a receiver, receives the SL data from the second terminal device based on the first SL DRX configuration.
  • the first terminal device sends seventh indication information to the second terminal device.
  • the second terminal device receives the seventh indication information from the first terminal device.
  • the seventh indication information requests to release the first SL DRX configuration.
  • the first terminal device When the power saving requirement of the first terminal device becomes less urgent, for example, after the battery of the first terminal device is charged, or after the operating system of the first terminal device instructs to exit the power saving mode, the first terminal device sends a message to the second terminal device. Send seventh indication information.
  • S750 an optional step, the second terminal device sends eighth indication information to the first terminal device.
  • the first terminal device receives the eighth indication information from the second terminal device.
  • the eighth indication information indicates to release the first SL DRX configuration.
  • the second terminal device releases the first SL DRX configuration.
  • the first terminal device releases the first SLDRX configuration based on the eighth indication information, so that the transmission requirement of the second terminal device can be better met.
  • the time-frequency resource used by the second terminal device to send the SL data to the first terminal device may be allocated by the serving access network device of the second terminal device. If the serving access network device of the second terminal device allocates resources for SL communication to the second terminal device at a time point, but this time point is within the sleep period of the first terminal device, the second terminal device cannot use the resources Sending SL data to the first terminal device will result in a waste of resources.
  • the second terminal device may perform step S721:
  • the second terminal device sends the first SLDRX configuration to the serving access network device of the second terminal device.
  • the serving access network device of the second terminal device receives the first SLDRX configuration from the second terminal device.
  • the second terminal device can establish SL connections with multiple terminal devices, optionally, in addition to the first SL DRX configuration, the second terminal device also sends the identifier of the first SL connection to the serving access network device of the second terminal device , used to indicate the identifier of the SL connection corresponding to the first SL DRX configuration.
  • the serving access network device of the second terminal device may allocate resources for SL communication to the second terminal device based on the first SL DRX configuration. Specifically, the resources allocated to the second terminal device are located in The first SL DRX configuration corresponds to the activation period, thereby avoiding waste of resources.
  • the second terminal device may perform step S751:
  • the second terminal device sends ninth indication information to the serving access network device of the second terminal device.
  • the serving access network device of the second terminal device receives the ninth indication information from the second terminal device.
  • the ninth indication information indicates that the first SL DRX configuration is released.
  • the ninth indication information may also include an identifier of the first SL connection, which is used to indicate the identifier of the SL connection corresponding to the first SL DRX configuration.
  • the serving access network device of the second terminal device After receiving the ninth indication information, the serving access network device of the second terminal device is no longer limited by the first SL DRX configuration, and can more flexibly allocate resources for SL communication to the second terminal device.
  • the above-mentioned FIG. 7 is described in the data transmission direction of the first terminal device as the SL data receiver, and for the data transmission direction of the first terminal device as the SL data sender ( That is, the second terminal device is used as the SL data receiver), and the above-mentioned method in FIG. 7 is also applicable.
  • the roles of the first terminal device and the second terminal device can be exchanged.
  • the first terminal device sends the sixth indication information, and the first terminal device sends the first SLDRX configuration to the second terminal device. I won't go into details here.
  • FIG. 8 is a schematic block diagram of a communication apparatus 800 according to an embodiment of the present application.
  • the communication apparatus 800 may correspondingly implement the functions or steps implemented by the first terminal device or the second terminal device in each of the foregoing method embodiments.
  • the communication apparatus may include one or more of a sending unit 810 , a receiving unit 820 and a processing unit 830 .
  • a storage unit may also be included, and the storage unit may be used to store instructions (codes or programs) and/or data.
  • the sending unit 810, the receiving unit 820 and the processing unit 830 may be coupled with the storage unit, for example, the processing unit 830 may read instructions (codes or programs) and/or data in the storage unit to implement corresponding methods.
  • the above-mentioned units may be set independently, or may be partially or fully integrated.
  • the communication apparatus 800 can correspondingly implement the behaviors and functions of the first terminal device in the foregoing method embodiments.
  • the communication apparatus 800 may be the first terminal device, or may be a component (eg, a chip or a circuit) applied in the first terminal device.
  • the sending unit 810 and the receiving unit 820 may be respectively configured to perform all sending or receiving operations performed by the first terminal device in the foregoing method embodiments, for example, S310 and S340 in the embodiment shown in FIG. S500, S510 and S520 in the embodiment shown in FIG. 6, or S610, S611, S620, S630, S631 and S650 in the embodiment shown in FIG. 6, or S710, S720, S740 and S750 in the embodiment shown in FIG.
  • processing unit 830 is configured to perform all operations performed by the first terminal device in the foregoing method embodiments except the transceiving operations, and/or be configured to support other processes of the technology described herein.
  • the processing unit 830 is configured to determine a first SL DRX configuration corresponding to the first SL connection and a second SL DRX configuration corresponding to the second SL connection, wherein the first SL connection is a connection between the first terminal device and the The SL connection between the second terminal equipment, the second SL connection is the SL connection between the first terminal equipment and the third terminal equipment, and the second SL DRX configuration is different from the first SL DRX configuration.
  • the processing unit 830 is further configured to determine the first SL DRX configuration and/or the second SL DRX configuration based on the service model information.
  • the sending unit 810 is configured to send the first SLDRX configuration to the second terminal device, and send the second SLDRX configuration to the third terminal device.
  • the sending unit 810 is further configured to send first indication information to the second terminal device, where the first indication information requests to acquire the service model information.
  • the receiving unit 820 is configured to receive SL data from the second terminal device based on the first SL DRX configuration, and receive SL data from the third terminal device based on the second SL DRX configuration.
  • the receiving unit 820 is further configured to receive data from the second terminal device. Service model information of the second terminal device corresponding to the first SL connection.
  • the receiving unit 820 is configured to receive service model information corresponding to the first SL connection from the second terminal device, where the first SL connection is an SL connection between the first terminal device and the second terminal device.
  • the processing unit 830 is configured to determine the first SL DRX configuration based on the service model information.
  • the sending unit 810 is configured to send the first SL DRX configuration to the second terminal device, optionally, the sending unit 810 is further configured to send the first indication information to the second terminal device before receiving the service model information from the second terminal device , the first indication information requests to obtain service model information.
  • the sending unit 810 is configured to send the first SL DRX configuration corresponding to the first SL connection to the second terminal device, where the first SL connection is an SL connection between the first terminal device and the second terminal device , the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver, and the sending unit 810 is further configured to send third indication information to the second terminal device, and the third indication information indicates the release of the first SL DRX configuration, which can be
  • the sending unit 810 is further configured to send fifth indication information to the access network device, where the fifth indication information indicates that the first SL DRX configuration is released or instructs the first terminal device to be released as all SL DRX configurations applied by the receiver ,
  • the sending unit 810 is further configured to send fourth indication information to the third terminal device, where the fourth indication information indicates to release the second SL DRX configuration.
  • the receiving unit 820 is configured to receive second indication information from the second terminal device, where the second indication information requests to release the first SL DRX configuration, or indicates data transmission requirement satisfaction information.
  • the sending unit 810 is configured to send sixth indication information to the second terminal device, and the sixth indication information requests the second terminal device to send the SL DRX configuration.
  • the sending unit 810 is further configured to send the SLDRX configuration to the second terminal device.
  • the second terminal device sends seventh indication information, where the seventh indication information requests to release the first SL DRX configuration.
  • the receiving unit 820 is configured to receive the first SL DRX configuration from the second terminal device, the first SL DRX configuration is the SL DRX configuration applied by the first terminal device corresponding to the first SL connection as the receiver, and the first SL connection is the first SL DRX configuration.
  • the SL connection between the terminal device and the second terminal device, the receiving unit 820 is further configured to receive SL data from the second terminal device based on the first SL DRX configuration, optionally, the receiving unit 820 is further configured to receive data from the second terminal Eighth indication information of the device, where the eighth indication information indicates releasing the first SL DRX configuration.
  • the processing unit 830 is configured to release the first SL DRX configuration based on the eighth indication information.
  • processing unit 830 in this embodiment of the present application may be implemented by at least one processor or a processor-related circuit component, and the sending unit 810 and the receiving unit 820 may be implemented by a transceiver or a transceiver-related circuit component or a communication interface.
  • the communication apparatus 800 can correspondingly implement the behaviors and functions of the second terminal device in the foregoing method embodiments.
  • the communication apparatus 800 may be the second terminal device, or may be a component (eg, a chip or a circuit) applied in the second terminal device.
  • the sending unit 810 and the receiving unit 820 may be configured to perform all the receiving or sending operations performed by the second terminal device in the foregoing method embodiments, for example, S310 in the embodiment shown in FIG. 3 , or S310 shown in FIG. 5 .
  • the processing unit 830 is configured to perform all operations performed by the second terminal device in the foregoing method embodiments except for the transceiving operations, and/or to support other processes of the technology described herein.
  • the sending unit 810 is configured to send the service model information corresponding to the first SL connection to the first terminal device, where the first SL connection is the SL connection between the first terminal device and the second terminal device, and the sending The unit 810 is further configured to send SL data to the first terminal device based on the first SL DRX configuration.
  • the receiving unit 820 is configured to receive the first SL DRX configuration from the first terminal device.
  • the first SL DRX configuration is determined based on the service model information.
  • the receiving unit 820 is further configured to receive the first SL DRX configuration from the first terminal device.
  • An indication information, the first indication information requests to obtain service model information.
  • the receiving unit 820 is configured to receive a first SL DRX configuration corresponding to a first SL connection from a first terminal device, where the first SL connection is an SL between the first terminal device and the second terminal device connection, the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver, optionally, the receiving unit 820 is further configured to receive third indication information from the first terminal device, and the third indication information indicates to release the first terminal device.
  • a SL DRX configuration corresponding to a first SL connection from a first terminal device, where the first SL connection is an SL between the first terminal device and the second terminal device connection, the first SL DRX configuration is the SL DRX configuration applied by the first terminal device as the receiver, optionally, the receiving unit 820 is further configured to receive third indication information from the first terminal device, and the third indication information indicates to release the first terminal device.
  • a SL DRX configuration is configured to receive a first SL DRX configuration corresponding to a first
  • the sending unit 810 is configured to send second indication information to the first terminal device, the second indication information requests to release the first SL DRX configuration, or indicates that the data transmission requirement is satisfied, or indicates that the first SL DRX configuration is released.
  • the processing unit 830 is configured to release the first SL DRX configuration, and optionally, the processing unit 830 is further configured to determine whether to release the first SL DRX configuration.
  • the receiving unit 820 is configured to receive sixth indication information from the first terminal device, where the sixth indication information requests the second terminal device to send the SLDRX configuration.
  • the sending unit 810 is used to send the first SL DRX configuration to the first terminal device, the first SL DRX configuration is the SL DRX configuration applied by the first terminal device corresponding to the first SL connection as the receiver, and the first SL connection is the first SL DRX configuration.
  • the SL connection between the terminal device and the second terminal device, the sending unit 810 is further configured to send SL data to the first terminal device based on the first SL DRX configuration, optionally, the sending unit 810 is further configured to send the access network device
  • the first SL DRX configuration optionally, the sending unit 810 is further configured to send the eighth indication information to the first terminal device, where the eighth indication information indicates to release the first SL DRX configuration, optionally, the sending unit 810 is further configured to send the first SL DRX configuration to the first terminal device.
  • the access network device sends ninth indication information, where the ninth indication information indicates that the first SL DRX configuration is released.
  • processing unit 830 in this embodiment of the present application may be implemented by at least one processor or processor-related circuit components, and the sending unit 810 and the receiving unit 820 may be implemented by a transceiver or transceiver-related circuit components.
  • the storage unit in the above embodiment may be implemented by a memory.
  • FIG. 9 shows a communication apparatus 900 provided by an embodiment of the present application.
  • the communication apparatus 900 may be a terminal device, which can implement the function of the first terminal device or the second terminal device in the method provided by the embodiment of the present application; the communication apparatus 900 also It may be a device capable of supporting the first terminal device or the second terminal device to implement the corresponding functions in the methods provided in the embodiments of the present application.
  • the communication apparatus 900 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication apparatus 900 includes at least one processor 920, which is configured to implement or support the communication apparatus 900 to implement the function of the first terminal device or the second terminal device in the method provided in the embodiment of this application. For details, refer to the detailed description in the method example, which is not repeated here.
  • Communication apparatus 900 may also include at least one memory 930 for storing program instructions and/or data.
  • Memory 930 is coupled to processor 920 .
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 920 may cooperate with memory 930 .
  • the processor 920 may execute program instructions and/or data stored in the memory 930 to cause the communication device 900 to implement the corresponding method.
  • at least one of the at least one memory may be included in the processor.
  • the communication apparatus 900 may further include a communication interface 910 for communicating with other devices through a transmission medium, so that the devices used in the communication apparatus 900 may communicate with other devices.
  • a communication interface 910 for communicating with other devices through a transmission medium, so that the devices used in the communication apparatus 900 may communicate with other devices.
  • the communication device is a first terminal device
  • the other device is a second terminal device, a third terminal device, or an access network device; or, when the communication device is a second terminal device, the other device is the first terminal device or the access network device.
  • the processor 920 may use the communication interface 910 to send and receive data.
  • the communication interface 910 may specifically be a transceiver.
  • the above-mentioned transmitting unit 810 and receiving unit 820 constitute the communication interface 910.
  • the specific connection medium between the communication interface 910 , the processor 920 , and the memory 930 is not limited in the embodiments of the present application.
  • the memory 930, the processor 920, and the communication interface 910 are connected through a bus 940 in FIG. 9, and the bus is represented by a thick line in FIG. It is a schematic illustration, and it is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.
  • the processor 920 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which may implement Alternatively, each method, step, and logic block diagram disclosed in the embodiments of the present application are executed.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory 930 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), Such as random-access memory (random-access memory, RAM).
  • Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in this embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and/or data.
  • the communication device in the above embodiment may be a terminal device or a circuit, and may also be a chip applied in the terminal device or other combined devices or components having the functions of the above-mentioned terminal device.
  • the transceiver unit may be a transceiver, which may include an antenna and a radio frequency circuit, etc.
  • the processing module may be a processor, such as a central processing unit (central processing unit, CPU).
  • the transceiver unit may be a radio frequency unit
  • the processing module may be a processor.
  • the transceiver unit may be an input and output interface of the chip system, and the processing module may be a processor of the chip system.
  • FIG. 10 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device takes a mobile phone as an example.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, control each unit, execute the software program, process the data of the software program, and so on.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 10 only one memory and processor are shown in FIG. 10 . In an actual device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit with a transceiver function may be regarded as the transceiver unit of the apparatus, and the processor with the processing function may be regarded as the processing unit of the apparatus.
  • the apparatus includes a transceiver unit 1010 and a processing unit 1020 .
  • the transceiver unit 1010 may also be referred to as a transceiver, a transceiver, a transceiver, or the like.
  • the processing unit 1020 may also be referred to as a processor, a processing board, a processing module, a processing device, or the like.
  • the device for implementing the receiving function in the transceiver unit 1010 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1010 may be regarded as a transmitting unit, that is, the transceiver unit 1010 includes a receiving unit and a transmitting unit.
  • the receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like.
  • the transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.
  • transceiving unit 1010 is configured to perform the sending and receiving operations of the terminal device in the above method embodiments
  • processing unit 1020 is configured to perform other operations on the terminal device in the above method embodiments except the transceiving operations.
  • the device may include a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit and/or a communication interface;
  • the processing unit may be an integrated processor, a microprocessor or an integrated circuit.
  • the communication system may include a first terminal device and a second terminal device, or may further include more terminal devices or access network devices.
  • the communication system includes a first terminal device, a second terminal device, and a third terminal device for implementing the above-mentioned related functions in FIG. 3 , or the communication system includes a first terminal for implementing the above-mentioned related functions in FIG. 5 .
  • device, the second terminal device, and the access network device or the communication system includes the first terminal device, the second terminal device, the third terminal device, and the access network device for implementing the above-mentioned related functions of FIG. 6 , or the communication
  • the system includes a first terminal device, a second terminal device, and an access network device for implementing the functions related to the embodiment of FIG. 7 .
  • Embodiments of the present application also provide a computer-readable storage medium, which includes instructions, which, when executed on a computer, cause the computer to execute the first terminal device or the first terminal device in any one of FIG. 3 , FIG. 5 , FIG. 6 and FIG. 7 . 2. A method performed by a terminal device.
  • the embodiments of the present application also provide a computer program product, including instructions, which, when run on a computer, cause the computer to execute the first terminal device or the second terminal in any one of FIG. 3 , FIG. 5 , FIG. 6 and FIG. 7 .
  • the method performed by the device is not limited to any one of FIG. 3 , FIG. 5 , FIG. 6 and FIG. 7 .
  • An embodiment of the present application provides a chip system, where the chip system includes a processor, and may also include a memory, for implementing the functions of the first terminal device or the second terminal device in the foregoing method.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • At least one (a) of a, b or c may represent: a, b, c, a-b, a-c, b-c or a-b-c, wherein a, b, c may be single or multiple.
  • the ordinal numbers such as the terms "first” and “second” in the description, claims and drawings of the present application are used to distinguish multiple objects, and are not used to limit multiple objects order, timing, priority, or importance.
  • the first message and the second message are only for distinguishing different messages, but do not indicate the difference in priority, sending order, or importance of the two kinds of messages.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as “exemplary” or “such as” should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as “exemplary” or “such as” is intended to present the related concepts in a specific manner. "Based on” in the description and claims of the present application and the drawings may also mean “based on, at least in part”.
  • processors mentioned in the embodiments of the present application may be a CPU, and may also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), ready-made Field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGA Field programmable gate array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM enhanced synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SCRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components
  • the memory storage module
  • memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the procedures or functions described in accordance with the embodiments of the present application are produced in whole or in part.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), and the like.

Abstract

本申请公开了一种侧行链路通信方法、装置和系统,应用于移动通信领域。该方法包括:第一终端设备与第二终端设备建立了第一侧行链路SL连接,第一终端设备与第三终端设备建立了第二SL连接。第一终端设备作为接收方确定对应第一SL连接的第一SL DRX配置和对应第二SL连接的第二SL DRX配置,第二SL DRX配置不同于第一SL DRX配置。通过该方法既可以达到第一终端设备较好的省电效果,又可以解决数据传输冲突概率增加的问题。此外,通过作为发送方的第二终端设备向第一终端设备发送指示信息请求释放第一SL DRX配置,第一终端设备响应该请求以释放第一SL DRX配置,从而可以满足第二终端设备的业务的数据传输需求,降低数据传输时延。

Description

侧行链路通信方法、装置和系统 技术领域
本申请涉及移动通信技术领域,尤其涉及一种侧行链路通信方法、装置和系统。
背景技术
终端设备与终端设备之间可以通过网络进行通信,也可以直接通信。侧行链路(sidelink,SL)通信是第三代合作伙伴计划(the 3rd Generation Partnership Project,3GPP)制定的一种终端设备和终端设备之间的直接通信的技术。终端设备与终端设备之间可以通过侧行链路直接进行数据传输,而不需要经过网络,这样可以有效地减少通信时延。在SL通信中,两个终端设备之间通过PC5接口传输数据,SL通信的典型应用是车与任何事物通信(Vehicle to Everything,V2X)场景,在V2X场景中,一个车辆即为一个终端设备,除了V2X场景外,SL通信还可以用于其他场景,比如可穿戴设备之间的直接通信等。
在SL通信过程中,为了节省终端设备的功耗,终端设备可以采用非连续接收(Discontinuous Reception,DRX)机制,DRX机制是指终端设备在没有数据传输时,在一段时间内关闭收发机以降低功耗。
一个终端设备可以和多个终端设备建立多个侧行链路进行通信。然而,本申请的发明人发现,当终端设备配置了DRX从休眠期转为激活期时,多个终端设备同时给该终端设备发送数据的概率增加,从而冲突概率增加,影响侧行链路通信。
发明内容
本申请实施例提供一种侧行链路通信方法、装置和系统,根据本申请提供的技术方案,第一终端设备与第二终端设备建立了第一侧行链路SL连接,第一终端设备与第三终端设备建立了第二SL连接。第一终端设备作为接收方确定对应第一SL连接的第一SL DRX配置和对应第二SL连接的第二SL DRX配置,第二SL DRX配置不同于第一SL DRX配置。通过该方法既可以达到第一终端设备较好的省电效果,又可以解决数据传输冲突概率增加的问题。此外,通过作为发送方的第二终端设备向第一终端设备发送指示信息请求释放第一SL DRX配置,第一终端设备响应该请求以释放第一SL DRX配置,从而可以满足第二终端设备的业务的数据传输需求,降低数据传输时延。
第一方面,提供一种通信方法。可以理解的是,该第一方面的方法可由第一装置执行,第一装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第一终端设备实现为例进行说明。
该方法包括:第一终端设备向第二终端设备发送对应第一SL连接的第一SL DRX配置,并基于第一SL DRX配置接收来自第二终端设备的SL数据,第一终端设备向第三终端设备发送对应第二SL连接的第二SL DRX配置,并基于第二SL DRX配置接收来自第三终端设备的SL数据,其中,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第二SL连接是第一终端设备与第三终端设备之间的SL连接,第二SL DRX配置不同于第一SL DRX配置。通过第一方面提供的方法,既可以达到第一终端设备较好的省电效 果,又可以解决数据传输冲突概率增加的问题。
在第一方面的一种可能的实现方式中,第一SL DRX配置和第二SL DRX配置包括相同的第一配置和不同的第一偏移,第一配置包括DRX周期时长和DRX起始时间偏移,第一偏移是相对于DRX起始时间偏移的偏移,不同的第一偏移可以使得第二终端设备和第三终端设备在不同的时间点开始向第一终端设备发送数据,从而降低冲突的概率。
在第一方面的一种可能的实现方式中,第一SL DRX配置和第二SL DRX配置包括相同的第一配置和不同的第一频率资源信息,第一配置包括DRX周期时长和DRX起始时间偏移,第一频率资源信息指示向第一终端设备发送SL数据使用的频率资源,或者指示向第一终端设备发送PSCCH使用的频率资源,或者指示向第一终端设备发送PSCCH和SL数据使用的频率资源,由于发送给第二终端设备和第三终端设备的第一频率资源信息不同,即使当第一终端设备从休眠期转为激活期时第二终端设备和第三终端设备同时向第一终端设备发送SL数据,但是由于第二终端设备和第三终端设备使用的频率资源不同,第一终端设备可以成功接收数据,从而解决了冲突的问题。由于第二终端设备和第三终端设备使用了相同的第一配置,第一终端设备能取得较好的省电效果。
在第一方面的一种可能的实现方式中,第一终端设备在确定参数时将第一SL DRX配置和第二SL DRX配置对应的DRX周期的起始时间位置错开,例如,第一SL DRX配置和第二SL DRX配置包括不同的DRX起始时间偏移(drxStartOffset),从而降低了冲突概率。
可选的,第一终端设备接收来自接入网设备的空口DRX配置,该空口DRX配置是第一终端设备与接入网设备之间的空口数据传输使用的DRX配置,第一配置来自该空口DRX配置,或者将该空口DRX配置的参数取值作为第一配置对应参数的取值,从而,实现了空口DRX与SL DRX的配合以达到第一终端设备较好的省电效果。
可选的,第一终端设备接收来自第二终端设备的对应第一SL连接的业务模型信息。该业务模型信息可以包括剩余包延迟预算信息、数据包大小、时延是否敏感信息和业务周期中的一个或多个,其中,剩余包延迟预算信息指示数据包到达第二终端设备的媒体接入层,或物理层,或无线链路层,或分组数据汇聚协议层时剩余的延迟预算。第一终端设备可以基于该业务模型信息确定第一SL DRX配置。
可选的,在接收来自第二终端设备的业务模型信息之前,向第二终端设备发送第一指示信息,第一指示信息请求获取业务模型信息。
可选的,第一终端设备统一使用一套SL DRX配置来接收所有其他终端设备(例如,第二终端设备和第三终端设备)发送的数据,该套SL DRX配置对应的激活期可以涵盖所有其他终端设备的SL DRX配置对应的激活期,从而达到第一终端设备处理简单的目的。
可选的,第一终端设备接收来自第二终端设备的第二指示信息,第二指示信息请求释放第一SL DRX配置,或指示数据传输需求满足信息,该数据传输需求满足信息可以包括数据传输需求不能得到满足,或数据传输时延不能得到满足。当确定释放第一SL DRX配置时,第一终端设备向第二终端设备发送第三指示信息,第三指示信息指示释放第一SL DRX配置。
第二方面,提供一种通信方法。可以理解的是,该第二方面的方法可由第一装置执行,第一装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第一终端设备实现为例进行说明。
该方法包括:第一终端设备接收来自第二终端设备的对应第一SL连接的业务模型信息;第一SL连接是第一终端设备与第二终端设备之间的SL连接;第一终端设备基于该业务模型信息确定第一SL DRX配置,并向第二终端设备发送第一SL DRX配置;第一终端设备作为接收方基于第一SL DRX配置接收第二终端设备发送的SL数据。通过第二方面提供的方法,既可以达到第一终端设备较好的省电效果,又可以较好满足第二终端设备的数据传输需求。
可选的,业务模型信息可以包括剩余包延迟预算信息、数据包大小、时延是否敏感信息和业务周期中的一个或多个,其中,剩余包延迟预算信息指示数据包到达第二终端设备的媒体接入层,或物理层,或无线链路层,或分组数据汇聚协议层时剩余的延迟预算。
可选的,在接收来自第二终端设备的业务模型信息之前,向第二终端设备发送第一指示信息,第一指示信息请求获取业务模型信息。
第三方面,提供一种通信方法。可以理解的是,该第三方面的方法可由第二装置执行,第二装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第二终端设备实现为例进行说明。
该方法包括:第二终端设备向第一终端设备发送对应第一SL连接的业务模型信息;第一SL连接是第一终端设备与第二终端设备之间的SL连接;第二终端设备接收来自第一终端设备的第一SL DRX配置;第一SL DRX配置是基于该业务模型信息确定的;第二终端设备作为发送方基于第一SL DRX配置向第一终端设备发送SL数据。通过第三方面提供的方法,既可以达到第一终端设备较好的省电效果,又可以较好满足第二终端设备的数据传输需求。
可选的,业务模型信息可以包括剩余包延迟预算信息、数据包大小、时延是否敏感信息和业务周期中的一个或多个,其中,剩余包延迟预算信息指示数据包到达第二终端设备的媒体接入层,或物理层,或无线链路层,或分组数据汇聚协议层时剩余的延迟预算。
可选的,第二终端设备在向第一终端设备发送业务模型信息之前,接收来自第一终端设备的第一指示信息,第一指示信息请求获取业务模型信息。
第四方面,提供一种通信方法。可以理解的是,该第四方面的方法可由第一装置执行,第一装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第一终端设备实现为例进行说明。
该方法包括:第一终端设备向第二终端设备发送对应第一SL连接的第一SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第一SL DRX配置是第一终端设备作为接收方应用的SL DRX配置,或者说第一SL DRX配置是第二终端设备作为发送方应用的SL DRX配置;第一终端设备接收来自第二终端设备的第二指示信息;当确定释放第一SL DRX配置时,向第二终端设备发送第三指示信息,第三指示信息指示释放第一SL DRX配置。通过第四方面提供的方法,可以解决由于第一SL DRX配置导致的第二终端设备的业务传输需求不能得到满足的问题。
在第四方面的一种可能的实现方式中,第二指示信息请求释放第一SL DRX配置。
在第四方面的一种可能的实现方式中,第二指示信息指示数据传输需求满足信息,该数据传输需求满足信息可以包括数据传输需求不能得到满足,或数据传输时延不能得到满足。
可选的,第二指示信息可以包括原因值,该原因值可以指示数据传输需求不能得到满 足。
可选的,在接收来自第二终端设备的第二指示信息之前,如果第一终端设备向第三终端设备发送了对应第二SL连接的第二SL DRX配置,第二SL连接是第一终端设备与第三终端设备之间的SL连接,则在向第二终端设备发送第三指示信息之后,第一终端设备向第三终端设备发送第四指示信息,第四指示信息指示释放第二SL DRX配置,第三终端设备基于第四指示信息释放第二SL DRX配置,第三终端设备的业务传输不再受限于第二SL DRX配置的限制,从而传输需求能得到更好的满足。
可选的,在向第二终端设备发送第三指示信息之后,第一终端设备向接入网设备发送第五指示信息,第五指示信息指示第一SL DRX配置被释放或指示第一终端设备作为接收方应用的所有的SL DRX配置被释放,接入网设备可以基于第五指示信息来确定,比如删除空口DRX配置,以使得空口的业务传输需求得到更好的满足。
可选的,在向第二终端设备发送第一SL DRX配置之前,第一终端设备接收来自第二终端设备的对应第一SL连接的业务模型信息,第一终端设备基于该业务模型信息确定第一SL DRX配置。
第五方面,提供一种通信方法。可以理解的是,该第五方面的方法可由第二装置执行,第二装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第二终端设备实现为例进行说明。
该方法包括:第二终端设备接收来自第一终端设备的对应第一SL连接的第一SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第一SL DRX配置是第一终端设备作为接收方应用的SL DRX配置,或者说第一SL DRX配置是第二终端设备作为发送方应用的SL DRX配置;第二终端设备向第一终端设备发送第二指示信息。通过第五方面提供的方法,可以解决由于第一SL DRX配置导致的第二终端设备的业务传输需求不能得到满足的问题。
在第五方面的一种可能的实现方式中,第二指示信息请求释放第一SL DRX配置。
在第五方面的一种可能的实现方式中,第二指示信息指示数据传输需求满足信息,该数据传输需求满足信息可以包括数据传输需求不能得到满足,或数据传输时延不能得到满足。
在第五方面的一种可能的实现方式中,第二终端设备可以确定是否释放第一SL DRX配置。当第二终端设备确定释放第一SL DRX配置时,向第一终端设备发送第二指示信息,第二指示信息指示第一SL DRX配置被释放。
可选的,当第二终端设备作为发送方的数据传输需求不能得到满足时,第二终端设备向第一终端设备发送第二指示信息。
可选的,第二指示信息可以包括原因值,该原因值指示数据传输需求不能得到满足。
可选的,在向第一终端设备发送第二指示信息之后,第二终端设备接收来自第一终端设备的第三指示信息,第三指示信息指示释放第一SL DRX配置;第二终端设备基于第三指示信息释放第一SL DRX配置。
可选的,在接收来自第一终端设备的第一SL DRX配置之前,第二终端设备向第一终端设备发送对应第一SL连接的业务模型信息,第一SL DRX配置是基于该业务模型信息确定的。
第六方面,提供一种通信方法。可以理解的是,该第六方面的方法可由第一装置执行, 第一装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第一终端设备实现为例进行说明。
该方法包括:第一终端设备向第二终端设备发送第六指示信息,第六指示信息请求第二终端设备发送SL DRX配置;第一终端设备接收来自第二终端设备的第一SL DRX配置,第一SL DRX配置是对应第一SL连接的第一终端设备作为接收方应用的SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接;第一终端设备基于第一SL DRX配置接收来自第二终端设备的SL数据。通过第六方面提供的方法,可以满足第一终端设备省电的需求。
可选的,当第一终端设备的电量小于第一门限时,确定发送第六指示信息。
可选的,当第一终端设备的数据传输量小于第二门限时,确定发送第六指示信息。
可选的,当第一终端设备的操作系统指示进入省电模式时,确定发送第六指示信息。
可选的,第六指示信息包括原因值,该原因值可以包括电量低,或数据传输量低,或需要进入省电模式。
可选的,第一终端设备在确定不再需要应用第一SL DRX配置时,向第二终端设备发送第七指示信息,第七指示信息请求释放第一SL DRX配置;第一终端设备接收来自第二终端设备的第八指示信息,第八指示信息指示释放第一SL DRX配置;第一终端设备基于第八指示信息,释放第一SL DRX配置,从而可以更好的满足第二终端设备的传输需求。
第七方面,提供一种通信方法。可以理解的是,该第七方面的方法可由第二装置执行,第二装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第二终端设备实现为例进行说明。
该方法包括:第二终端设备接收来自第一终端设备的第六指示信息,第六指示信息请求第二终端设备发送SL DRX配置;第二终端设备向第一终端设备发送第一SL DRX配置,第一SL DRX配置是对应第一SL连接的第一终端设备作为接收方应用的SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接;第二终端设备基于第一SL DRX配置向第一终端设备发送SL数据。通过第七方面提供的方法,可以满足第一终端设备省电的需求。
可选的,第六指示信息包括原因值,该原因值可以包括电量低,或数据传输量低,或需要进入省电模式。
可选的,在向第一终端设备发送第一SL DRX配置之后,第二终端设备向接入网设备发送第一SL DRX配置。如果第二终端设备向第一终端设备发送SL数据使用的时频资源是由接入网设备分配的,则接入网设备可以基于第一SL DRX配置给第二终端设备分配SL通信的资源,具体的,给第二终端设备分配的资源位于第一SL DRX配置对应的激活期内,从而避免资源的浪费。
可选的,第二终端设备向第一终端设备发送第八指示信息,第八指示信息指示释放第一SL DRX配置;在向第一终端设备发送第八指示信息之后,第二终端设备向接入网设备发送第九指示信息,第九指示信息指示第一SL DRX配置被释放,接入网设备在收到第九指示信息后,不再受限于第一SL DRX配置,从而可以更灵活的给第二终端设备分配SL通信的资源。
第八方面,提供一种通信方法。可以理解的是,该第八方面的方法可由第一装置执行,第一装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯 片、芯片系统或处理器。下面以该方法由第一终端设备实现为例进行说明。
该方法包括:第一终端设备与第二终端设备交互对应第一SL连接的业务模型信息,其中,第一SL连接是第一终端设备与第二终端设备之间的SL连接。第一终端设备与第二终端设备交互对应第一SL连接的第一SL DRX配置,第一SL DRX配置是基于该业务模型信息确定的。第一终端设备基于第一SL DRX配置与第二终端设备进行SL通信。
对于第一SL连接,在第一终端设备作为SL数据接收方这一数据传输方向,第一终端设备与第二终端设备交互业务模型信息,包括:第一终端设备接收来自第二终端设备的业务模型信息;第一设备与所述第二终端设备交互所述第一SL DRX配置,包括:第一终端设备向第二终端设备发送第一SL DRX配置;第一终端设备基于第一SL DRX配置与第二终端设备进行SL通信,包括:第一终端设备基于第一SL DRX配置接收来自第二终端设备的SL数据。具体的方法可以参见上述第二方面的描述。
对于第一SL连接,对于第一终端设备作为SL数据发送方这一数据传输方向(也就是,第二终端设备作为SL数据接收方),上述第三方面的方法也适用,此时,将第一终端设备和第二终端设备的角色互换下即可。第一终端设备与第二终端设备交互业务模型信息,包括:第一终端设备向第二终端设备发送业务模型信息;第一设备与所述第二终端设备交互所述第一SL DRX配置,包括:第一终端设备接收来自第二终端设备的第一SL DRX配置;第一终端设备基于第一SL DRX配置与第二终端设备进行SL通信,包括:第一终端设备基于第一SL DRX配置向第二终端设备发送SL数据。具体的方法可以参见上述第三方面的描述(第一终端设备和第二终端设备的角色互换)。
第九方面,提供一种通信方法。可以理解的是,该第九方面的方法可由第一装置执行,第一装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第一终端设备实现为例进行说明。
该方法包括:第一终端设备与第二终端设备交互对应第一SL连接的第一SL DRX配置,其中,第一SL连接是第一终端设备与第二终端设备之间的SL连接。第一终端设备与所述第二终端设备交互第二指示信息,第二指示信息请求释放第一SL DRX配置。第一终端设备与第二终端设备交互第三指示信息,第三指示信息指示释放第一SL DRX配置。第一终端设备释放所述第一SL DRX配置。
对于第一SL连接,在第一终端设备作为SL数据接收方这一数据传输方向,第一终端设备与第二终端设备交互第一SL DRX配置,包括:第一终端向第二终端设备发送第一SL DRX配置;第一终端与第二终端设备交互第二指示信息,包括:第一终端接收来自第二终端设备的第二指示信息;第一终端与第二终端设备交互第三指示信息,包括:第一终端向第二终端设备发送第三指示信息。具体的方法可以参见上述第四方面的描述。
对于第一SL连接,对于第一终端设备作为SL数据发送方这一数据传输方向(也就是,第二终端设备作为SL数据接收方),上述第五方面的方法也适用,此时,将第一终端设备和第二终端设备的角色互换下即可。第一终端设备与第二终端设备交互第一SL DRX配置,包括:第一终端设备接收来自第二终端设备的第一SL DRX配置;第一终端设备与第二终端设备交互所第二指示信息,包括:第一终端设备向第二终端设备发送第二指示信息;第一终端设备与第二终端设备交互第三指示信息,包括:第一终端设备接收来自第二终端设备的第三指示信息。具体的方法可以参见上述第五方面的描述(第一终端设备和第二终端设备的角色互换)。
第十方面,提供一种通信方法。可以理解的是,该第十方面的方法可由第一装置执行,第一装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片、芯片系统或处理器。下面以该方法由第一终端设备实现为例进行说明。
该方法包括:第一终端设备与第二终端设备交互第六指示信息,第六指示信息请求发送SL DRX配置。第一终端设备与第二终端设备交互第一SL DRX配置,第一SL DRX配置是对应第一SL连接的SL DRX配置,第一SL连接是第一终端设备与所述第二终端设备之间的SL连接。第一终端设备基于第一SL DRX配置与第二终端设备进行SL通信。
对于第一SL连接,在第一终端设备作为SL数据接收方这一数据传输方向,第一终端设备与第二终端设备交互第六指示信息,包括:第一终端设备向第二终端设备发送第六指示信息;第一终端设备与第二终端设备交互第一SL DRX配置,包括:第一终端设备接收来自第二终端设备的第一SL DRX配置;第一终端设备基于第一SL DRX配置与第二终端设备进行SL通信,包括:第一终端设备基于第一SL DRX配置接收来自第二终端设备的SL数据,第一SL DRX配置是第一终端设备作为接收方应用的SL DRX配置。具体的方法可以参见上述第六方面的描述。
对于第一SL连接,对于第一终端设备作为SL数据发送方这一数据传输方向(也就是,第二终端设备作为SL数据接收方),上述第七方面的方法也适用,此时,将第一终端设备和第二终端设备的角色互换下即可。第一终端设备与第二终端设备交互第六指示信息,包括:第一终端设备接收来自第二终端设备的第六指示信息;第一终端设备与第二终端设备交互第一SL DRX配置,包括:第一终端设备向第二终端设备发送第一SL DRX配置;第一终端设备基于第一SL DRX配置与第二终端设备进行SL通信,包括:第一终端设备基于第一SL DRX配置向第二终端设备发送SL数据,第一SL DRX配置是第一终端设备作为发送方应用的SL DRX配置。具体的方法可以参见上述第七方面的描述(第一终端设备和第二终端设备的角色互换)。
第十一方面,提供了一种通信装置,该通信装置具有实现上述第一方面的方法中的行为的功能。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备,也可以是能够支持终端设备实现上述第一方面的方法中的功能的装置,例如,该通信装置可以是芯片、芯片系统或处理器。
在一个可能的设计中,该通信装置包括:处理单元,用于确定对应第一SL连接的第一SL DRX配置和对应第二SL连接的第二SL DRX配置,其中,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第二SL连接是第一终端设备与第三终端设备之间的SL连接,第二SL DRX配置不同于第一SL DRX配置,可选的,处理单元还用于基于业务模型信息确定第一SL DRX配置和/或第二SL DRX配置;发送单元,用于向第二终端设备发送第一SL DRX配置,以及向第三终端设备发送第二SL DRX配置,可选的,发送单元还用于向第二终端设备发送第一指示信息,第一指示信息请求获取所述业务模型信息;接收单元,用于基于第一SL DRX配置接收来自第二终端设备的SL数据,以及基于第二SL DRX配置接收来自第三终端设备的SL数据,可选的,接收单元还用于接收来自第二终端设备的对应第一SL连接的业务模型信息。这些单元或模块可以执行上述第一方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第十二方面,提供了一种通信装置,该通信装置具有实现上述第二方面的方法中的行 为的功能。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备,也可以是能够支持终端设备实现上述第二方面的方法中的功能的装置,例如,该通信装置可以是芯片、芯片系统或处理器。
在一个可能的设计中,该通信装置包括:接收单元,用于接收来自第二终端设备的对应第一SL连接的业务模型信息,第一SL连接是第一终端设备与第二终端设备之间的SL连接;处理单元,用于基于业务模型信息确定第一SL DRX配置;发送单元,用于向第二终端设备发送第一SL DRX配置,可选的,发送单元还用于在接收来自第二终端设备的业务模型信息之前,向第二终端设备发送第一指示信息,第一指示信息请求获取业务模型信息。这些单元或模块可以执行上述第二方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第十三方面,提供了一种通信装置,该通信装置具有实现上述第三方面的方法中的行为的功能。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备,也可以是能够支持终端设备实现上述第三方面的方法中的功能的装置,例如,该通信装置可以是芯片、芯片系统或处理器。
在一个可能的设计中,该通信装置包括:发送单元,用于向第一终端设备发送对应第一SL连接的业务模型信息,第一SL连接是第一终端设备与第二终端设备之间的SL连接,发送单元还用于基于第一SL DRX配置向第一终端设备发送SL数据;接收单元,用于接收来自第一终端设备的第一SL DRX配置,第一SL DRX配置是基于该业务模型信息确定的,可选的,接收单元还用于接收来自第一终端设备的第一指示信息,第一指示信息请求获取业务模型信息。这些单元或模块可以执行上述第三方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第十四方面,提供了一种通信装置,该通信装置具有实现上述第四方面的方法中的行为的功能。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备,也可以是能够支持终端设备实现上述第四方面的方法中的功能的装置,例如,该通信装置可以是芯片、芯片系统或处理器。
在一个可能的设计中,该通信装置包括:发送单元,用于向第二终端设备发送对应第一SL连接的第一SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第一SL DRX配置是第一终端设备作为接收方应用的SL DRX配置,发送单元还用于向第二终端设备发送第三指示信息,第三指示信息指示释放第一SL DRX配置,可选的,发送单元还用于向接入网设备发送第五指示信息,第五指示信息指示第一SL DRX配置被释放或指示第一终端设备作为接收方应用的所有的SL DRX配置被释放,可选的,发送单元还用于向第三终端设备发送第四指示信息,第四指示信息指示释放第二SL DRX配置;接收单元,用于接收来自第二终端设备的第二指示信息,第二指示信息请求释放第一SL DRX配置,或指示数据传输需求满足信息。这些单元或模块可以执行上述第四方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第十五方面,提供了一种通信装置,该通信装置具有实现上述第五方面的方法中的行为的功能。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包 括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备,也可以是能够支持终端设备实现上述第五方面的方法中的功能的装置,例如,该通信装置可以是芯片、芯片系统或处理器。
在一个可能的设计中,该通信装置包括:接收单元,用于接收来自第一终端设备的对应第一SL连接的第一SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第一SL DRX配置是第一终端设备作为接收方应用的SL DRX配置,可选的,接收单元还用于接收来自第一终端设备的第三指示信息,第三指示信息指示释放第一SL DRX配置;发送单元,用于向第一终端设备发送第二指示信息,第二指示信息请求释放第一SL DRX配置,或指示数据传输需求满足信息,或指示第一SL DRX配置被释放;处理单元,用于释放第一SL DRX配置,可选的,处理单元还用于确定是否释放第一SL DRX配置。这些单元或模块可以执行上述第五方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第十六方面,提供了一种通信装置,该通信装置具有实现上述第六方面的方法中的行为的功能。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备,也可以是能够支持终端设备实现上述第六方面的方法中的功能的装置,例如,该通信装置可以是芯片、芯片系统或处理器。
在一个可能的设计中,该通信装置包括:发送单元,用于向第二终端设备发送第六指示信息,第六指示信息请求第二终端设备发送SL DRX配置,可选的,发送单元还用于向第二终端设备发送第七指示信息,第七指示信息请求释放第一SL DRX配置;接收单元,用于接收来自第二终端设备的第一SL DRX配置,第一SL DRX配置是对应第一SL连接的第一终端设备作为接收方应用的SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,接收单元还用于基于第一SL DRX配置接收来自第二终端设备的SL数据,可选的,接收单元还用于接收来自第二终端设备的第八指示信息,第八指示信息指示释放第一SL DRX配置;可选的,处理单元,用于基于第八指示信息释放第一SL DRX配置。这些单元或模块可以执行上述第六方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第十七方面,提供了一种通信装置,该通信装置具有实现上述第七方面的方法中的行为的功能。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备,也可以是能够支持终端设备实现上述第七方面的方法中的功能的装置,例如,该通信装置可以是芯片、芯片系统或处理器。
在一个可能的设计中,该通信装置包括:接收单元,用于接收来自第一终端设备的第六指示信息,第六指示信息请求第二终端设备发送SL DRX配置;发送单元,用于向第一终端设备发送第一SL DRX配置,第一SL DRX配置是对应第一SL连接的第一终端设备作为接收方应用的SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,发送单元还用于基于第一SL DRX配置向第一终端设备发送SL数据,可选的,发送单元还用于向接入网设备发送第一SL DRX配置,可选的,发送单元还用于向第一终端设备发送第八指示信息,第八指示信息指示释放第一SL DRX配置,可选的,发送单元还用于向接入网设备发送第九指示信息,第九指示信息指示第一SL DRX配置被释放。这些 单元或模块可以执行上述第七方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第十八方面,提供了一种通信装置,该通信装置可以为实现上述第一方面至第十方面中任何一个方面的方法的通信装置,或者为设置在实现上述第一方面至第十方面中任何一个方面的方法的通信装置中的芯片。该通信装置包括通信接口以及处理器,可选的,还包括存储器。其中,该存储器用于存储计算机程序或指令或者数据,处理器与存储器、通信接口耦合,当处理器读取计算机程序或指令或数据时,使通信装置执行各个方面中由第一终端设备或第二终端设备所执行的方法。
应理解,该通信接口可以是通信装置中的收发器,例如通过该通信装置中的天线、馈线和编解码器等实现,或者,如果通信装置为设置在终端设备中的芯片,则通信接口可以是该芯片的输入/输出接口,例如输入/输出管脚等。该收发器用于该通信装置与其它设备进行通信。
第十九方面,提供了一种芯片系统,该芯片系统包括处理器,用于实现第一方面至第十方面中的任何一个方面的方法。在一种可能的设计中,该芯片系统还包括存储器,用于保存程序指令和/或数据。该芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
第二十方面,提供了一种通信系统,该系统包括实现第一方面的方法的通信装置以及第二终端设备和第三终端设备,或包括实现第二方面的方法的通信装置以及实现第三方面的方法的通信装置,或包括实现第四方面的方法的通信装置以及实现第五方面的方法的通信装置,或包括实现第六方面的方法的通信装置以及实现第七方面的方法的通信装置,或包括实现第八方面的方法的通信装置,或包括实现第九方面的方法的通信装置,或包括实现第十方面的方法的通信装置。
第二十一方面,提供了一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码被运行时,使得上述各方面中由第一终端设备执行的方法被执行,或使得上述各方面中由第二终端设备执行的方法被执行。
第二十二方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有计算机程序,当该计算机程序被运行时,实现上述各方面中由第一终端设备执行的方法;或实现上述各方面中由第二终端设备执行的方法。
附图说明
图1为本申请实施例应用的一种通信系统的架构示意图;
图2为本申请实施例提供的一种DRX机制的示意图;
图3为本申请实施例提供的通信方法的一种示例的流程图;
图4为本申请实施例提供的通信方法的一种示意图;
图5为本申请实施例提供的通信方法的另一种示例的流程图;
图6为本申请实施例提供的通信方法的另一种示例的流程图;
图7为本申请实施例提供的通信方法的另一种示例的流程图;
图8为本申请实施例提供的通信装置的一种结构示意图;
图9为本申请实施例提供的通信装置的另一种结构示意图;
图10为本申请实施例提供的通信装置的另一种结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(Long Term Evolution,LTE)系统、第五代(5th Generation,5G)系统或新无线(New Radio,NR)系统,车到其它设备(Vehicle to X,V2X),其中V2X可以包括车到网络(Vehicle to Network,V2N)、车到车(Vehicle to Vehicle,V2V)、车到基础设施(Vehicle to Infrastructure,V2I)、车到行人(Vehicle to Pedestrian,V2P)等、车间通信长期演进技术(Long Term Evolution-Vehicle,LTE-V)、车联网(Internet of Vehicle,IoV)、机器类通信(Machine Type Communication,MTC)、物联网(Internet of Things,IoT)、机器间通信长期演进技术(Long Term Evolution-Machine,LTE-M),机器到机器(Machine to Machine,M2M),非地面通信(Non-Terrestrial Network,NTN)系统或者未来演进的其它通信系统等。
图1是适用于本申请实施例的通信系统100的一个示意图。该通信系统可以包括至少两个终端设备,如图1所示的通信系统100中的终端设备102、103、104、105。该通信系统还可以包括至少一个网络设备,如图1所示的无线通信系统100中的网络设备101。该至少两个终端设备之间可以建立侧行链路(sidelink,SL),侧行链路是终端设备之间建立的可以直接进行通信的链路,如图1中的链路120、121、122、123、124,建立了侧行链路的终端设备之间可以直接进行通信。其中,一个终端设备可以与一个或多个终端设备建立侧行链路,该终端设备可以接收与该终端设备建立了侧行链路的一个或多个终端设备发送的数据。两个终端设备之间的接口称之为PC5接口。该通信系统中的终端设备中也可以与网络设备建立无线连接进行数据通信,如图1所示的终端设备102、103分别于网络设备建立了无线链路110、111。该通信系统中的终端设备也可以不与网络设备建立无线链路,如图1所示的终端设备104、105,本申请对此不作限定。可以理解的是,上述侧行链路也可以称为侧链路、旁链路、直通链路等,本申请实施例对此不做限定。
在本申请中,终端设备是一种具有无线收发功能的设备,可以是固定设备、移动设备、手持设备、穿戴设备、车辆、车载设备,或内置于上述设备中的装置(例如,通信模块或芯片系统等)。所述终端设备用于连接人、物、机器等,可广泛用于各种场景。有时也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。本申请的实施例中的终端设备可以是手机、平板电脑、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制中的无线终端、物联网系统中的无线终端,无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、运输安全中的无线终端、智慧城市中的无线终端、智慧家庭中的无线终端、蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、车载通信装置,车载通信处理芯片,可穿戴设备,5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network,PLMN)中的终端设 备等。应理解,本申请对于终端设备的具体形式不作限定。
为了便于理解本申请中的实施例,现对本申请实施例涉及到的相关概念和机制进行描述。
1.SL通信
终端设备与终端设备之间的侧行链路支持广播通信、单播通信和组播通信。广播通信是指终端设备不做加密处理对外发送广播业务数据,任何在有效接收范围内的其他终端设备,如果对该广播业务感兴趣都可以接收该广播业务的数据。单播通信是指点到点的通信,需要在两个终端设备之间建立单播连接。在建立单播连接之后,两个终端设备可以基于协商的标识进行数据通信,该数据可以是加密的,也可以是不加密的。相比于广播通信,在单播通信中,只能是建立了单播连接的两个终端设备之间才能进行该单播通信。组播通信是指一个通信组内所有终端设备之间的通信,组内任一终端设备都可以收发该组播业务的数据。不管是那种传播类型,终端设备在发送数据时,都会随数据发送源标识和目标标识,其中源标识都是发端终端设备自己分配的。目标标识针对不同传播类型的含义不同,针对单播通信,该目标标识是对端终端设备为该单播连接分配的标识,针对广播通信,该目标标识是广播业务对应的标识,针对组播通信,该目标标识是该通信组对应的一个标识。
2.不连续接收(Discontinuous Reception,DRX)机制
数据传输通常是突发性的,在没有数据传输的时候,可以通过关闭终端设备的接收机来降低功耗,从而提升电池使用时间。这就是DRX机制的由来。DRX的基本机制是为作为接收方的终端设备配置一个DRX周期(DRX Cycle)。如图2所示,DRX周期由激活期和休眠期(或者称为非激活期)组成,对于作为接收方的终端设备,在激活期内监听并接收物理控制信道以接收数据,在休眠期内关闭接收机以降低功耗。对于作为发送方的终端设备,当作为接收方的对端终端设备处于激活期内时,给接收方发送数据,否则不发送。DRX配置可以包括如下表1中的参数,但不限于下面的参数:
表1
Figure PCTCN2020139129-appb-000001
在大多数情况下,当一个终端设备在某个子帧被调度并进行数据传输后,很可能在接下来的几个子帧内继续被调度,如果要等到下一个DRX周期再来传输这些数据将会带来额外的延迟。为了降低这类延迟,终端设备在被调度后,会持续位于激活期,即会持续监听物理控制信道一段时间。其实现机制是:每当终端设备被调度初传数据时,就会启动(或 重启)休眠定时器,终端设备将一直位于激活态直到该定时器超时。休眠定时器时长指定了当终端设备成功解码一个指示初传的物理控制信令后,持续位于激活态的时长。即每当终端设备有初传数据被调度,该定时器就重启一次。在一个DRX周期内,当激活期定时器和休眠定时器均停止运行(或没有运行)时,终端设备进入休眠期。
DRX周期的选择包含了终端设备的电池省电和传输延迟之间的平衡。从一个方面讲,长DRX周期有益于延长终端设备的电池使用时间,例如网页浏览,当用户在阅读已经下载好的网页时,如果此时终端设备继续监听物理控制信道则浪费终端设备的电能。从另一个方面讲,当有新的数据传输时,一个更短的DRX周期有利于更快的响应,降低数据传输时延,例如用户请求另一个网页。
在LTE系统和NR系统中,对于终端设备和网络设备之间的通信,网络设备确定DRX配置并发送给终端设备。在本申请中,将在SL连接(例如,单播连接)中使用的DRX配置称之为SL DRX配置。对于建立了SL通信的连接的两个终端设备,任何一个终端设备既可以作为SL数据的发送方,又可以作为SL数据的接收方,也就是说,这两个终端设备之间的连接有两个数据传输方向,每个数据传输方向可以对应一套SL DRX配置。针对每一个数据传输方向,可以有两种确定SL DRX配置的方式:
方式1:作为SL数据的接收方的终端设备确定该数据传输方向的SL DRX配置,并将该SL DRX配置发送给对端终端设备,对端终端设备作为SL数据的发送方基于该SL DRX配置向该终端设备发送SL数据,该终端设备基于该SL DRX配置接收来自对端终端设备发送的SL数据;
方式2:作为SL数据的发送方的终端设备确定该数据传输方向的SL DRX配置,并将该SL DRX配置发送给对端终端设备,该终端设备基于该SL DRX配置向对端终端设备发送SL数据,对端终端设备作为SL数据的接收方基于该SL DRX配置接收该终端设备发送的SL数据。
一个终端设备可以与多个终端设备中的每一个终端设备建立SL连接。对于方式1,当作为接收方的终端设备向多个终端设备发送一套SL DRX配置后,本申请的发明人发现,由于其他多个终端设备使用的是相同的一套SL DRX配置,当该终端设备处于休眠期时,如果其他终端设备有数据要发送给该终端设备,此时不能发送,需要等到该终端设备进入激活期。然而,当该终端设备从休眠期转为激活期时,由于在休眠期积压的数据,其他多个终端设备可能同时开始向该终端设备发送数据,从而冲突概率增加,影响侧行链路通信。这里的冲突包括,例如,该终端设备不能同时接收多个终端设备发送数据,或者该终端设备支持同时接收多个终端设备发送数据,但是这多个终端设备使用了相同的时频资源,相互干扰导致接收失败。此外,考虑到两个终端设备有各自不同的省电或业务数据传输的需求,并且可能是随着时间变化的,有必要对当前的DRX机制进行优化,以满足业务数据传输的需求或省电需求。
鉴于此,提供本申请实施例的技术方案。下面结合附图介绍本申请实施例提供的技术方案。
本申请一实施例提供一种通信方法,请参见图3,为该方法的流程图。该方法可由至少三个通信设备执行,例如为第一终端设备、第二终端设备和第三终端设备。其中,第一终端设备、第二终端设备和第三终端设备可以是上面所述的各种形式的终端设备或能够支持终端设备实现该方法所需的功能的通信装置或芯片。具体的实施步骤如下:
S310、第一终端设备向第二终端设备发送第一SL DRX配置。
相应的,第二终端设备接收来自第一终端设备的第一SL DRX配置。
第一终端设备可以与多个终端设备中的每一个终端设备建立SL连接。在本实施例中,第一终端设备和第二终端设备之间建立了SL连接,这里称之为第一SL连接。第一终端设备和第三终端设备之间建立了SL连接,这里称之为第二SL连接。当然,第一终端设备还可以与更多的终端设备之间,比如第四终端设备、第五终端设备等建立连接,为了描述的方便,在本实施例中以第一终端设备与第二终端设备和第三终端设备分别建立了SL连接为例进行说明,更多的终端设备的场景也在本实施例的保护范围内。
在第一终端设备作为SL数据接收方的这一数据传输方向上,省电效果是针对第一终端设备的,第一终端设备确定这一数据传输方向上的SL DRX配置,可以使得其他终端设备在相同或相近的时间向第一终端设备发送数据,有利于第一终端设备达到较好的省电效果。第一终端设备可以确定一套SL DRX配置,这里将该套SL DRX配置称之为第一配置,第一配置可以包括上述表1里DRX参数中的1个或多个的组合,例如第一配置可以包括DRX周期时长和DRX起始时间偏移,第一终端设备将第一配置发送给其他多个建立了SL连接的终端设备。第一终端设备在该第一配置的激活期监听物理控制信道,具体的,可以是监听物理侧行链路控制信道(Physical Sidelink Control CHannel,PSCCH),其他多个终端设备在该第一配置的激活期向第一终端设备发送数据,由于休眠期数据的积压,导致冲突概率增加,影响侧行链路通信。
为了解决该问题,第一终端设备可以确定对应第一SL连接的第一SL DRX配置和对应第二SL连接的第二SL DRX配置,第二SL DRX配置不同于第一SL DRX配置。
在一种可能的实现方式一中,第一SL DRX配置和第二SL DRX配置可以包括相同的第一配置和不同的第一偏移,也就是,第一SL DRX配置和第二SL DRX配置包括第一配置和第一偏移,第一SL DRX配置包括的第一配置的内容与第二SL DRX配置包括的第一配置的内容相同,第一SL DRX配置包括的第一偏移的内容与第二SL DRX配置包括的第一偏移的内容不同。第一配置可以包括DRX周期时长和DRX起始时间偏移。第一偏移是相对于第一配置里包括的DRX起始时间偏移(drxStartOffset)的偏移,或者说,第一偏移是相对于第一配置对应的DRX周期的起始时间位置的偏移。第一SL DRX配置和第二SL DRX配置包括相同的第一配置。此时,第一配置作为公共配置,在公共配置的基础上,第一终端设备为第二终端设备和第三终端设备确定不同的第一偏移,从而使得第二终端设备和第三终端设备在不同的时间点开始向第一终端设备发送数据,从而降低冲突的概率。由于是基于公共配置,第二终端设备和第三终端设备在相近的时间段向第一终端设备发送数据,有利于第一终端设备的省电。需要说明的是,第一偏移可以取值为0。可选的,第一配置可以认为是第一终端设备作为接收方使用的SL DRX配置,在第一配置对应的激活期内,通过为第一终端设备和第二终端设备设置不同的第一偏移使得第一终端设备和第二终端设备在不同的时间点开始发送数据,从而达到降低冲突概率的目的。
如图4所示,t1时间点是第一配置对应的DRX周期的起始时间位置,是由第一配置里包括的DRX起始时间偏移(drxStartOffset)确定的。第一SL DRX配置里的第一偏移为“偏移1”,则在一个DRX周期里,第二终端设备在“t1+偏移1”的位置,也就是时间点t2的位置才能开始向第一终端设备发送数据。第二SL DRX配置里的第一偏移为“偏移2”,则在一个DRX周期里,第二终端设备在“t1+偏移2”的位置,也就是时间点t3的 位置才能开始向第一终端设备发送数据。当偏移1和偏移2的取值不同时,冲突的概率能被降低。需要说明的是,偏移1或偏移2的取值可以为0。例如,当偏移1的取值为0时,则t2时间点和t1时间点重合。
可选的,第一配置可以包括激活期定时器时长(onDurationTimer),也就是,第一SL DRX配置和第二SL DRX配置可以包括相同的onDurationTimer,也就是两者的onDurationTimer定时器的时长相同。对于第二终端设备和第三终端设备,可以使用onDurationTimer作为实际的激活期定时器时长,也可以使用“onDurationTimer”减去“第一偏移”作为实际的激活期定时器时长,在没有数据传输的情况下,第二终端设备和第三终端设备的激活期定时器同时超时,从而第一终端设备能进入休眠期以省电,如图4所示,第一终端设备可以在t4时间点进入休眠期。
可选的,第一SL DRX配置和第二SL DRX配置可以包括具有不同的onDurationTimer,第二终端设备和第三终端设备使用各自的SL DRX配置里包括的onDurationTimer作为实际的激活期定时器时长。
在另一种可能的实现方式二中,第一SL DRX配置和第二SL DRX配置可以包括相同的第一配置和不同的第一频率资源信息,也就是,第一SL DRX配置和第二SL DRX配置包括第一配置和第一频率资源信息,第一SL DRX配置包括的第一配置的内容与第二SL DRX配置包括的第一配置的内容相同,第一SL DRX配置包括的第一频率资源信息的内容与第二SL DRX配置包括的第一频率资源信息的内容不同。这里的第一频率资源信息的内容不同,可以指两者对应的频率资源没有重叠。第一配置可以包括DRX周期时长和DRX起始时间偏移。第一频率资源信息指示向第一终端设备发送SL数据使用的频率资源,或者指示向第一终端设备发送PSCCH使用的频率资源,或者指示向第一终端设备发送PSCCH和SL数据使用的频率资源。由于发送给第二终端设备和第三终端设备的第一频率资源信息不同,即使当第一终端设备从休眠期转为激活期时第二终端设备和第三终端设备同时向第一终端设备发送SL数据,但是由于第二终端设备和第三终端设备使用的频率资源不同,第一终端设备可以成功接收数据,从而解决了冲突的问题。由于第二终端设备和第三终端设备使用了相同的第一配置,第一终端设备能取得较好的省电效果。
在另一种可能的实现方式三中,第一SL DRX配置和第二SL DRX配置可以不包括公共配置,而是各自包括上述表1中的DRX参数。各个DRX参数可以有不同的取值,但是为了降低冲突概率,第一终端设备在确定参数时将第一SL DRX配置和第二SL DRX配置对应的DRX周期的起始时间位置错开,例如,第一SL DRX配置和第二SL DRX配置包括不同的DRX起始时间偏移(drxStartOffset)。在第一SL DRX配置和第二SL DRX配置对应的激活期定时器时长相同的情况下,错开的时间间距可以设置的较小,从而第一终端设备的激活期能设置的较短,这样既降低了冲突概率又达到省电的效果。
需要说明的是,上述的第二终端设备和第三终端设备也可以用第二终端设备组和第三终端设备组替换,终端设备组里的终端设备是与第一终端设备建立了SL连接的终端设备,第一终端设备向一个终端设备组里的终端设备发送相同的SL DRX配置,向不同的终端设备组里的终端设备发送不同的SL DRX配置,从而起到降低冲突概率的效果。
在进行SL通信的同时,第一终端设备可能与接入网设备建立了无线资源控制(Radio Resource Control,RRC)连接,也就是第一终端设备处于RRC连接态。这个接入网设备是第一终端设备的服务接入网设备。第一终端设备与接入网设备之间的接口称之为空口。 为了第一终端设备的省电,接入网设备可以给第一终端设备发送空口DRX配置,该空口DRX配置是第一终端设备与接入网设备之间的空口数据传输使用的DRX配置。对于第一终端设备,如果空口DRX和SL DRX中有一个处于激活期,第一终端设备不能关闭接收机,也就不能达到省电的效果。因此,空口DRX与SL DRX需要进行配合以达到第一终端设备较好的省电效果。一种方法是,可以基于空口DRX配置确定SL通信的SL DRX配置,使得,比如在既没有空口数据传输又没有SL接口的数据传输的情况下,空口DRX配置对应的激活期与SL DRX配置对应的激活期是相同或相近的,或者说,空口DRX配置对应的休眠期与SL DRX配置对应的休眠期是相同或相近的。
可选的,在第一终端设备确定第一SL DRX配置和第二SL DRX配置之前,第一终端设备接收来自服务接入网设备的空口DRX配置,例如,服务接入网设备向第一接入网设备发送RRC重配置消息,该RRC重配置消息包括空口DRX配置。空口DRX配置是第一终端设备与服务接入网设备之间的空口数据传输使用的DRX配置。在上述实现方式一和实现方式二中,第一配置的内容可以来自该空口DRX配置,也就是,可以将该空口DRX配置的参数内容作为第一配置对应参数的内容,或者说,将该空口DRX配置作为第一配置。从而,实现了空口DRX与SL DRX的配合以达到第一终端设备较好的省电效果。在上述实现方式三中,可以基于空口DRX配置来确定第一SL DRX配置和第二SL DRX配置,例如,设置第一SL DRX配置或第二SL DRX配置对应的DRX周期的起始时间位置与空口DRX配置对应的DRX周期的起始时间位置相同或相近,从而使得空口的激活期与SL通信的激活期相同或相近以达到第一终端设备较好的省电效果。
可选的,在第一终端设备确定第一SL DRX配置和第二SL DRX配置之前,第一终端设备接收来自服务接入网设备的小区系统信息广播的SL DRX配置。在上述实现方式一和实现方式二中,第一配置的内容可以来自该SL DRX配置,也就是,可以将该SL DRX配置的参数内容作为第一配置对应参数的内容,或者说,将SL DRX配置作为第一配置。在上述实现方式三中,可以基于该SL DRX配置来确定第一SL DRX配置和第二SL DRX配置,例如,设置第一SL DRX配置或第二SL DRX配置对应的DRX周期的起始时间位置与该SL DRX配置对应的DRX周期的起始时间位置相同或相近。
S320、第二终端设备基于第一SL DRX配置向第一终端设备发送SL数据。
S330、第一终端设备基于第一SL DRX配置接收来自第二终端设备的SL数据。
S340、第一终端设备向第三终端设备发送第二SL DRX配置。
相应的,第三终端设备接收来自第一终端设备的第二SL DRX配置。
S350、第三终端设备基于第二SL DRX配置向第一终端设备发送SL数据。
S360、第一终端设备基于第二SL DRX配置接收来自第三终端设备的SL数据。
需要说明的是,在步骤S310至步骤S360中,步骤S320和步骤S330在步骤S310之后,步骤S350和步骤S360在步骤S340之后,除此之外,不限定其他的步骤之间的执行先后顺序。
需要说明的是,在上述步骤中,第一终端设备基于第一SL DRX配置接收来自第二终端设备的SL数据,以及基于第二SL DRX配置接收来自第三终端设备的SL数据,也就是说,第一终端设备使用两套SL DRX配置分别针对不同的终端设备。然而,第一终端设备也可以不区分是针对哪个终端设备,而是统一使用一套SL DRX配置来接收所有其他终端设备发送的数据,该套SL DRX配置对应的激活期可以涵盖所有其他终端设备的SL DRX 配置对应的激活期,其好处是,第一终端设备的处理更简单。例如,如图4所示,第一终端设备使用图4-a的SL DRX配置接收第二终端设备和第三终端设备发送的SL数据,第二终端设备使用图4-b向第一终端设备发送SL数据,第三终端设备使用图4-c向第一终端设备发送SL数据。
可选的,在步骤S310之前,第一终端设备可以基于业务传输模型信息确定SL DRX配置。第一终端设备可以从第一终端设备的应用层获取到SL连接对应的业务模型信息,也可以从对端的终端设备获取,如图5所示(以对端的终端设备是第二终端设备为例):
S510、第一终端设备接收来自第二终端设备的对应第一SL连接的业务模型信息。相应的,第二终端设备向第一终端设备发送对应第一SL连接的业务模型信息。即第一终端设备与第二终端设备交互对应第一SL连接的业务模型信息。
该业务模型信息可以是第二终端设备作为发送方发送数据的业务模型信息。业务模型信息可以包括剩余包延迟预算信息、数据包大小、时延是否敏感信息和业务周期中的一个或多个,其中,剩余包延迟预算信息指示数据包到达第二终端设备的媒体接入层,或物理层,或无线链路层,或分组数据汇聚协议层时剩余的延迟预算。
可选的,在步骤S510之前,还可以执行步骤S500:
S500、第一终端设备向第二终端设备发送第一指示信息,该第一指示信息请求获取对应第一SL连接的业务模型信息。相应的,第二终端设备接收来自第一终端设备的第一指示信息。
可选的,在步骤S510之后,还可以执行步骤S520:
S520、第一终端设备向接入网设备发送对应第一SL连接的业务模型信息。相应的,接入网设备接收来自第一终端设备的对应第一SL连接的业务模型信息。接入网设备可以,例如,基于该业务模型信息确定并向第一终端设备发送空口DRX配置。
需要说明的是,图5所示的方法是以第一终端设备从第二终端设备获取对应的SL连接的业务模型信息为例,该方法也可以应用于第一终端设备从其他终端设备,例如第三终端设备、第四终端设备获取对应的SL连接的业务模型信息。图5所示的方法可以结合图3的实施例一起实施,也可以作为一个单独的实施例实施。当结合图3的实施例一起实施时,在确定第一SL DRX配置和第二SL DRX配置之前,第一终端设备从第二终端设备获取到对应第一SL连接的第一业务模型信息,第一终端设备从第三终端设备获取到对应第二SL连接的第二业务模型信息。第一终端设备基于这些业务模型信息来确定第一SL DRX配置和第二SL DRX配置,以使得SL DRX配置与业务模型匹配,例如第一业务模型信息包括的剩余包延迟预算信息指示为80毫秒,第二业务模型信息包括的剩余包延迟预算信息指示为40毫秒,则第一终端设备确定第一SL DRX配置和第二SL DRX配置的DRX周期为40毫秒,以满足数据传输的时延需求。此外,第一终端设备可以基于业务模型信息确定第一偏移的取值,以上述例子为例,考虑到第三终端设备的剩余包延迟预算比第二终端设备的更短,则第一终端设备可以为第三终端设备设置比第二终端设备更短的第一偏移的取值,从而使得第三终端设备相比第二终端设备能更早发送数据,以满足数据传输的时延需求。当作为独立实施例实施时,例如,第一终端设备从第二终端设备获取到对应第一SL连接的业务模型信息。第一终端设备可以基于该业务模型信息确定第一SL DRX配置,并向第二终端设备发送第一SL DRX配置(即第一终端设备与第二终端设备交互第一SL DRX配置),第一终端设备基于第一SL DRX配置接收来自第二终端设备的SL数据,相应的,第 二终端设备基于第一SL DRX配置向第二终端设备发送SL数据。例如,业务模型信息包括的剩余包延迟预算信息指示为80毫秒,则第一终端设备可以确定第一SL DRX配置的DRX周期为80毫秒。
需要说明的是,对于第一SL连接,上述图5是以第一终端设备作为SL数据接收方这一数据传输方向上来描述的,对于第一终端设备作为SL数据发送方这一数据传输方向(也就是,第二终端设备作为SL数据接收方),上述图5的方法也适用,此时,将第一终端设备和第二终端设备的角色互换下即可,例如,第二终端设备向第一终端设备发送第一指示信息,该第一指示信息请求获取对应第一SL连接的业务模型信息,第一终端设备向第二终端设备发送对应第一SL连接的业务模型信息,第二终端设备向接入网设备发送对应第一SL连接的业务模型信息,这里不再赘述。
基于省电的考虑,第一终端设备作为接收方可以确定并向其他终端设备发送SL DRX配置。然而,本申请的发明人发现,如果其他终端设备有新的业务到来(例如,时延敏感的业务),其他终端设备只能在SL DRX配置对应的激活期向第一终端设备发送数据,导致时延增大,不能满足该业务的传输需求。
鉴于此,本申请另一实施例提供一种通信方法,请参见图6,为该方法的流程图。该方法可由至少两个通信设备执行,例如为第一终端设备和第二终端设备。其中,第一终端设备和第二终端设备可以是上面所述的各种形式的终端设备或能够支持终端设备实现该方法所需的功能的通信装置或芯片。具体的实施步骤如下:
S610、第一终端设备向第二终端设备发送第一SL DRX配置。
相应的,第二终端设备接收来自第一终端设备的第一SL DRX配置。即第一终端设备与第二终端设备交互第一SL DRX配置。
第一终端设备和第二终端设备之间建立了第一SL连接。基于省电的考虑,第一终端设备作为接收方确定对应第一SL连接的第一SL DRX配置,第一SL DRX配置是在第一SL连接上第一终端设备作为接收方应用的SL DRX配置,也就是说,第一SL DRX配置是在第一SL连接上第二终端设备作为发送方应用的SL DRX配置。第一SL DRX配置可以包括上述表1中的DRX参数,具体确定的方法,例如可以参考图5对应的方法,也就是本实施例可以独立实施,也可以与图5对应的方法结合一起实施,例如,第一终端设备向第二终端设备发送第一SL DRX配置之前,接收来自第二终端设备的业务模型信息,具体参见图5对应的方法,这里不再赘述。第一终端设备向第二终端设备发送第一SL DRX配置。
S620、第二终端设备向第一终端设备发送第二指示信息。
相应的,第一终端设备接收来自第二终端设备的第二指示信息。即第一终端设备与第二终端设备交互第二指示信息。
当第二终端设备确定第一SL DRX配置不再合适,例如,第二终端设备有新的业务到来,第一SL DRX配置导致该业务的传输需求(例如,时延需求)不能得到满足,第二终端设备向第一终端设备发送第二指示信息。
在一种可能的实现方式一中,第二指示信息请求释放第一SL DRX配置。可选的,第二指示信息包括原因值,该原因值指示请求释放第一SL DRX配置的原因,该原因可以为,例如,数据传输需求不能得到满足,或数据传输时延不能得到满足等。在该实现方式中,下一步骤可以执行S630。
在另一种可能的实现方式二中,第二指示信息指示数据传输需求满足信息,该数据传输需求满足信息包括数据传输需求不能得到满足,或数据传输时延不能得到满足等,第二指示信息可以用于作为第一终端设备确定是否释放第一SL DRX配置的考量因素。在该实现方式中,下一步骤可以执行S630。
在又一种可能的实现方式三中,第二指示信息指示第一SL DRX配置被释放。在该实现方式中,当数据传输需求不能被满足时,第二终端设备可以确定是否释放第一SL DRX配置。当第二终端设备确定释放第一SL DRX配置时,向第一终端设备发送第二指示信息,并释放第一SL DRX配置(即执行步骤S640)。第一终端设备收到第二指示信息后,释放第一SL DRX配置。
S630、第一终端设备向第二终端设备发送第三指示信息。
相应的,第二终端设备接收第三指示信息。第三指示信息指示第二终端设备释放第一SL DRX配置。即第一终端设备与第二终端设备交互第三指示信息。
该步骤为可选步骤。针对步骤S620里的实现方式三,可以不执行该步骤。针对步骤S620里的实现方式一和实现方式二,第一终端设备在收到第二指示信息后确定是否释放第一SL DRX配置。如果第一终端设备确定释放第一SL DRX配置,则向第二终端设备发送第三指示信息并释放第一SL DRX配置,第二终端设备收到第三指示信息后释放第一SL DRX配置(即执行步骤S640);如果第一终端设备确定不释放第一SL DRX配置,则不执行该步骤,该流程结束。
S640、第二终端设备释放第一SL DRX配置。
第二终端设备释放第一SL DRX配置,第二终端设备向第一终端设备发送SL数据不再受限于第一SL DRX配置,可以在需要的时候立即向第一终端设备发送数据,从而可以解决由于第一SL DRX配置导致的第二终端设备的业务传输需求不能满足的问题。
可选的,在本申请中,如果第一终端设备与多个终端设备建立了SL连接。如果在这多个SL连接中存在SL连接没有配置对应的SL DRX配置,则第一终端设备的接收机在任何时间总是打开以监听物理控制信道来接收可能发送给第一终端设备的数据。因此,当第一SL DRX配置被释放后,第一终端设备的接收机需要总是打开。如果第一终端设备除了与第二终端设备建立了SL连接外,还与其他终端设备建立了SL连接并向其发送了SL DRX配置,以第三终端设备为例,在步骤S620之前,第一终端设备向第三终端设备发送了对应第二SL连接(第二SL连接是第一终端设备与第三终端设备之间的SL连接)的第二SL DRX配置,即步骤S611,则即使存在第二SL DRX配置,第一终端设备也起不到省电的效果。因此,可选的,在步骤S620或步骤S630之后,执行步骤S631:
S631、第一终端设备向第三终端设备发送第四指示信息。
相应的,第三终端设备接收第四指示信息。第四指示信息指示第三终端设备释放第二SL DRX配置。
第一终端设备向第三终端设备发送第四指示信息并释放第二SL DRX配置。第三终端设备收到第四指示信息后释放第二SL DRX配置(即执行步骤S641)。
S641、第三终端设备释放第二SL DRX配置。
第三终端设备释放第二SL DRX配置,第三终端设备向第一终端设备发送SL数据不再受限于第二SL DRX配置,可以在需要的时候立即向第一终端设备发送数据,从而业务的传输需求能得到更好的满足。
如果第一终端设备与接入网设备建立了RRC连接,可选的,在第一SL DRX配置或第二SL DRX配置被释放后,还可以执行步骤S650:
S650、第一终端设备向接入网设备发送第五指示信息。
相应的,接入网设备接收第一终端设备发送的第五指示信息。第五指示信息指示第一SL DRX配置被释放,或者第二SL DRX配置,或者指示第一终端设备作为接收方应用的所有的SL DRX配置被释放。接入网设备是第一终端设备的服务接入网设备。
接入网设备可以基于第五指示信息来确定,比如删除空口DRX配置,以使得空口的业务传输需求得到更好的满足。
需要说明的是,图3所示的方法、图5所示的方法和图6所示的方法,可以各自独立实施,也可以3者结合一起实施,或者其中任意两两结合一起实施,具体的方法可以参见各自相关的描述,这里不再赘述。
需要说明的是,对于第一SL连接,上述图6是以第一终端设备作为SL数据接收方这一数据传输方向上来描述的,对于第一终端设备作为SL数据发送方这一数据传输方向(也就是,第二终端设备作为SL数据接收方),上述图6的方法也适用,此时,将第一终端设备和第二终端设备的角色互换下即可,例如,第二终端设备向第一终端设备发送第一SL DRX配置,第一终端设备向第二终端设备发送第二指示信息,第二终端设备向第一终端设备发送第三指示信息,这里不再赘述。
本申请又一实施例提供一种通信方法,请参见图7,为该方法的流程图。该方法可由至少两个通信设备执行,例如为第一终端设备和第二终端设备。其中,第一终端设备和第二终端设备可以是上面所述的各种形式的终端设备或能够支持终端设备实现该方法所需的功能的通信装置或芯片。具体的实施步骤如下:
S710、第一终端设备向第二终端设备发送第六指示信息。
相应的,第二终端设备接收来自第一终端设备的第六指示信息。即第一终端设备与第二终端设备交互第六指示信息。
第一终端设备和第二终端设备之间建立了第一SL连接。正如上文所示,有两种方式确定SL DRX配置:方式1是作为SL数据接收方的终端设备确定该数据传输方向的SL DRX配置,方式2是作为SL数据发送方的终端设备确定该数据传输方向的SL DRX配置。对于方式2,本申请的发明人发现,该方式不利于满足在一些场景下接收方的省电需求,这些场景可以是,例如,第一终端设备作为接收方,当第一终端设备的电量较少时,例如小于或小于等于预定的第一门限时,第一终端设备有较强烈的省电需求以避免电量耗尽关机,或者当第一终端设备识别出数据传输量小于或小于等于预定的第二门限时,或者当第一终端设备的操作系统指示进入省电模式时。在这些场景下,第一终端设备确定并向第二终端设备发送第六指示信息。
在一种可能的实现方式一中,第六指示信息请求第二终端设备发送SL DRX配置。可选的,第六指示信息包括原因值,该原因值可以为,例如,电量低,或数据传输量低,或需要进入省电模式等。
在另一种可能的实现方式二中,第六指示信息指示第一终端设备的省电需求信息,该省电需求信息可以包括第一终端设备的电量信息,或数据传输量信息,或需要进入省电模式的指示信息等,该省电需求信息可以作为第二终端设备确定是否给第一终端设备配置SL DRX配置的考量因素。
S720、第二终端设备向第一终端设备发送第一SL DRX配置。
相应的,第一终端设备接收来自第二终端设备的第一SL DRX配置。即第一终端设备与第二终端设备交互第一SL DRX配置。
第二终端设备可以基于第六指示信息确定是否配置对应第一SL连接的第一终端设备作为接收方应用的第一SL DRX配置。第一SL DRX配置是在第一SL连接上第一终端设备作为接收方应用的SL DRX配置,也就是说,第一SL DRX配置是在第一SL连接上第二终端设备作为发送方应用的SL DRX配置。具体如何确定,可以取决于第二终端设备的实现,例如,当第一终端设备的电量低时确定配置,否则不配置。第一SL DRX配置可以包括上述表1中的DRX参数。如果确定配置,则向第一终端设备发送第一SL DRX配置。第一终端设备应用第一SL DRX配置接收来自第二终端设备的SL数据,从而满足第一终端设备省电的需求。
S730、第二终端设备基于第一SL DRX配置向第一终端设备发送SL数据。
第二终端设备作为发送方基于第一SL DRX配置向第一终端设备发送SL数据。第一终端设备作为接收方基于第一SL DRX配置接收来自第二终端设备的SL数据。
S740、可选步骤,第一终端设备向第二终端设备发送第七指示信息。
相应的,第二终端设备接收来自第一终端设备的第七指示信息。第七指示信息请求释放第一SL DRX配置。
当第一终端设备的省电需求变得不紧急时,例如,第一终端设备的电池充电后,或第一终端设备的操作系统指示退出省电模式后,第一终端设备向第二终端设备发送第七指示信息。
S750、可选步骤,第二终端设备向第一终端设备发送第八指示信息。
相应的,第一终端设备接收来自第二终端设备的第八指示信息。第八指示信息指示释放第一SL DRX配置。
第二终端设备释放第一SL DRX配置。第一终端设备基于第八指示信息释放第一SL DRX配置,从而可以更好的满足第二终端设备的传输需求。
第二终端设备向第一终端设备发送SL数据使用的时频资源可能是由第二终端设备的服务接入网设备分配的。如果第二终端设备的服务接入网设备在一个时间点给第二终端设备分配了SL通信的资源,但是这个时间点位于第一终端设备的休眠期内,则第二终端设备无法使用这个资源向第一终端设备发送SL数据,这样将会造成资源的浪费。可选的,在步骤S720之后,第二终端设备可以执行步骤S721:
S721、第二终端设备向第二终端设备的服务接入网设备发送第一SL DRX配置。
相应的,第二终端设备的服务接入网设备接收来自第二终端设备的第一SL DRX配置。
由于第二终端设备可以与多个终端设备建立SL连接,可选的,除了第一SL DRX配置外,第二终端设备还向第二终端设备的服务接入网设备发送第一SL连接的标识,用于指示第一SL DRX配置对应的SL连接的标识。
第二终端设备的服务接入网设备在收到第一SL DRX配置后,可以基于第一SL DRX配置给第二终端设备分配SL通信的资源,具体的,给第二终端设备分配的资源位于第一SL DRX配置对应的激活期内,从而避免资源的浪费。
可选的,在步骤S750之后,第二终端设备可以执行步骤S751:
S751、第二终端设备向第二终端设备的服务接入网设备发送第九指示信息。
相应的,第二终端设备的服务接入网设备接收来自第二终端设备的第九指示信息。第九指示信息指示第一SL DRX配置被释放。可选的,第九指示信息还可以包括第一SL连接的标识,用于指示第一SL DRX配置对应的SL连接的标识。
第二终端设备的服务接入网设备在收到第九指示信息后,不再受限于第一SL DRX配置,可以更灵活的给第二终端设备分配SL通信的资源。
需要说明的是,对于第一SL连接,上述图7是以第一终端设备作为SL数据接收方这一数据传输方向上来描述的,对于第一终端设备作为SL数据发送方这一数据传输方向(也就是,第二终端设备作为SL数据接收方),上述图7的方法也适用,此时,将第一终端设备和第二终端设备的角色互换下即可,例如,第二终端设备向第一终端设备发送第六指示信息,第一终端设备向第二终端设备发送第一SL DRX配置。这里不再赘述。
下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此,上文中的内容均可以用于后续实施例中,重复的内容不再赘述。
图8为本申请实施例提供的通信装置800的示意性框图。该通信装置800可以对应实现上述各个方法实施例中由第一终端设备或第二终端设备实现的功能或者步骤。
在一些可能的实现方式中,该通信装置可以包括发送单元810、接收单元820和处理单元830中的一个或多个。可选的,还可以包括存储单元,该存储单元可以用于存储指令(代码或者程序)和/或数据。发送单元810、接收单元820和处理单元830可以与该存储单元耦合,例如,处理单元830可以读取存储单元中的指令(代码或者程序)和/或数据,以实现相应的方法。上述各个单元可以独立设置,也可以部分或者全部集成。
在一些可能的实施方式中,通信装置800能够对应实现上述方法实施例中第一终端设备的行为和功能。例如通信装置800可以为第一终端设备,也可以为应用于第一终端设备中的部件(例如芯片或者电路)。发送单元810和接收单元820可以分别用于执行上述方法实施例中由第一终端设备所执行的全部发送或者接收操作,例如图3所示的实施例中的S310和S340,或图5所示的实施例中的S500、S510和S520,或图6所示的实施例中的S610,S611,S620,S630,S631和S650,或图7所示的实施例中的S710,S720,S740和S750,和/或用于支持本文所描述的技术的其它过程。其中,处理单元830用于执行上述方法实施例中由第一终端设备所执行的除了收发操作之外的全部操作,和/或用于支持本文所描述的技术的其它过程。
在一些可能的实施例中,处理单元830用于确定对应第一SL连接的第一SL DRX配置和对应第二SL连接的第二SL DRX配置,其中,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第二SL连接是第一终端设备与第三终端设备之间的SL连接,第二SL DRX配置不同于第一SL DRX配置。可选的,处理单元830还用于基于业务模型信息确定第一SL DRX配置和/或第二SL DRX配置。
发送单元810用于向第二终端设备发送第一SL DRX配置,以及向第三终端设备发送第二SL DRX配置。可选的,发送单元810还用于向第二终端设备发送第一指示信息,第一指示信息请求获取所述业务模型信息。
接收单元820用于基于第一SL DRX配置接收来自第二终端设备的SL数据,以及基于第二SL DRX配置接收来自第三终端设备的SL数据,可选的,接收单元820还用于接收来自第二终端设备的对应第一SL连接的业务模型信息。
在一些可能的实施例中,接收单元820用于接收来自第二终端设备的对应第一SL连 接的业务模型信息,第一SL连接是第一终端设备与第二终端设备之间的SL连接。
处理单元830用于基于业务模型信息确定第一SL DRX配置。
发送单元810用于向第二终端设备发送第一SL DRX配置,可选的,发送单元810还用于在接收来自第二终端设备的业务模型信息之前,向第二终端设备发送第一指示信息,第一指示信息请求获取业务模型信息。
在一些可能的实施例中,发送单元810用于向第二终端设备发送对应第一SL连接的第一SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第一SL DRX配置是第一终端设备作为接收方应用的SL DRX配置,发送单元810还用于向第二终端设备发送第三指示信息,第三指示信息指示释放第一SL DRX配置,可选的,发送单元810还用于向接入网设备发送第五指示信息,第五指示信息指示第一SL DRX配置被释放或指示第一终端设备作为接收方应用的所有的SL DRX配置被释放,可选的,发送单元810还用于向第三终端设备发送第四指示信息,第四指示信息指示释放第二SL DRX配置。
接收单元820用于接收来自第二终端设备的第二指示信息,第二指示信息请求释放第一SL DRX配置,或指示数据传输需求满足信息。
在一些可能的实施例中,发送单元810用于向第二终端设备发送第六指示信息,第六指示信息请求第二终端设备发送SL DRX配置,可选的,发送单元810还用于向第二终端设备发送第七指示信息,第七指示信息请求释放第一SL DRX配置。
接收单元820用于接收来自第二终端设备的第一SL DRX配置,第一SL DRX配置是对应第一SL连接的第一终端设备作为接收方应用的SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,接收单元820还用于基于第一SL DRX配置接收来自第二终端设备的SL数据,可选的,接收单元820还用于接收来自第二终端设备的第八指示信息,第八指示信息指示释放第一SL DRX配置。
可选的,处理单元830用于基于第八指示信息释放第一SL DRX配置。
应理解,本申请实施例中的处理单元830可以由至少一个处理器或处理器相关电路组件实现,发送单元810和接收单元820可以由收发器或收发器相关电路组件或者通信接口实现。
在一些可能的实施方式中,通信装置800能够对应实现上述方法实施例中第二终端设备的行为和功能。例如通信装置800可以为第二终端设备,也可以为应用于第二终端设备中的部件(例如芯片或者电路)。其中,发送单元810和接收单元820可以用于执行上述方法实施例中由第二终端设备所执行的全部接收或发送操作,例如图3所示的实施例中的S310,或图5所示的实施例中的S500和S510,或图6所示的实施例中的S610,S620和S630,或图7所示的实施例中的S710,S720,S721,S740,S750和S751,和/或用于支持本文所描述的技术的其它过程。处理单元830用于执行上述方法实施例中由第二终端设备所执行的除了收发操作之外的全部操作,和/或用于支持本文所描述的技术的其它过程。
在一些可能的实施例中,发送单元810用于向第一终端设备发送对应第一SL连接的业务模型信息,第一SL连接是第一终端设备与第二终端设备之间的SL连接,发送单元810还用于基于第一SL DRX配置向第一终端设备发送SL数据。
接收单元820用于接收来自第一终端设备的第一SL DRX配置,第一SL DRX配置是基于该业务模型信息确定的,可选的,接收单元820还用于接收来自第一终端设备的第一 指示信息,第一指示信息请求获取业务模型信息。
在一些可能的实施例中,接收单元820用于接收来自第一终端设备的对应第一SL连接的第一SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,第一SL DRX配置是第一终端设备作为接收方应用的SL DRX配置,可选的,接收单元820还用于接收来自第一终端设备的第三指示信息,第三指示信息指示释放第一SL DRX配置。
发送单元810用于向第一终端设备发送第二指示信息,第二指示信息请求释放第一SL DRX配置,或指示数据传输需求满足信息,或指示第一SL DRX配置被释放。
处理单元830用于释放第一SL DRX配置,可选的,处理单元830还用于确定是否释放第一SL DRX配置。
在一些可能的实施例中,接收单元820用于接收来自第一终端设备的第六指示信息,第六指示信息请求第二终端设备发送SL DRX配置。
发送单元810,用于向第一终端设备发送第一SL DRX配置,第一SL DRX配置是对应第一SL连接的第一终端设备作为接收方应用的SL DRX配置,第一SL连接是第一终端设备与第二终端设备之间的SL连接,发送单元810还用于基于第一SL DRX配置向第一终端设备发送SL数据,可选的,发送单元810还用于向接入网设备发送第一SL DRX配置,可选的,发送单元810还用于向第一终端设备发送第八指示信息,第八指示信息指示释放第一SL DRX配置,可选的,发送单元810还用于向接入网设备发送第九指示信息,第九指示信息指示第一SL DRX配置被释放。
应理解,本申请实施例中的处理单元830可以由至少一个处理器或处理器相关电路组件实现,发送单元810和接收单元820可以由收发器或收发器相关电路组件实现。
上述实施例中的存储单元可以通过存储器实现。
如图9所示为本申请实施例提供的通信装置900,通信装置900可以是终端设备,能够实现本申请实施例提供的方法中第一终端设备或第二终端设备的功能;通信装置900也可以是能够支持第一终端设备或第二终端设备实现本申请实施例提供的方法中对应的功能的装置。其中,该通信装置900可以为芯片系统。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
通信装置900包括至少一个处理器920,用于实现或用于支持通信装置900实现本申请实施例提供的方法中第一终端设备或第二终端设备的功能。具体参见方法示例中的详细描述,此处不做赘述。
通信装置900还可以包括至少一个存储器930,用于存储程序指令和/或数据。存储器930和处理器920耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接,可以是电性,机械或其它的形式,用于装置、单元或模块之间的信息交互。处理器920可能和存储器930协同操作。处理器920可能执行存储器930中存储的程序指令和/或数据,以使得通信装置900实现相应的方法。可选的,所述至少一个存储器中的至少一个可以包括于处理器中。
通信装置900还可以包括通信接口910,用于通过传输介质和其它设备进行通信,从而用于通信装置900中的装置可以和其它设备进行通信。示例性地,当该通信装置为第一终端设备时,该其它设备为第二终端设备或第三终端设备或接入网设备;或者,当该通信装置为第二终端设备时,该其它设备为第一终端设备或接入网设备。处理器920可以利用通信接口910收发数据。通信接口910具体可以是收发器。例如,上述发送单元810和接 收单元820构成通信接口910。
本申请实施例中不限定上述通信接口910、处理器920以及存储器930之间的具体连接介质。示例性的,本申请实施例在图9中以存储器930、处理器920以及通信接口910之间通过总线940连接,总线在图9中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不进行限定。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图9中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中,处理器920可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中,存储器930可以是非易失性存储器,比如硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD)等,还可以是易失性存储器(volatile memory),例如随机存取存储器(random-access memory,RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置,用于存储程序指令和/或数据。
需要说明的是,上述实施例中的通信装置可以是终端设备也可以是电路,也可以是应用于终端设备中的芯片或者其他具有上述终端设备功能的组合器件、部件等。当通信装置是终端设备时收发单元可以是收发器,可以包括天线和射频电路等,处理模块可以是处理器,例如:中央处理单元(central processing unit,CPU)。当通信装置是具有上述终端设备功能的部件时,收发单元可以是射频单元,处理模块可以是处理器。当通信装置是芯片系统时,收发单元可以是芯片系统的输入输出接口、处理模块可以是芯片系统的处理器。
图10示出了一种简化的终端设备的结构示意图。便于理解和图示方便,图10中,该终端设备以手机作为例子。如图10所示,终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理,以及对该各单元进行控制,执行软件程序,处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置,例如触摸屏、显示屏,键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是,有些种类的设备可以不具有输入输出装置。
当需要发送数据时,处理器对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到该设备时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器,处理器将基带信号转换为数据并对该数据进行处理。为便于说明,图10中仅示出了一个存储器和处理器。在实际的设备产品中,可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置,也可以是与处理器集成在一起,本申请实施例对此不做限制。
在本申请实施例中,可以将具有收发功能的天线和射频电路视为该装置的收发单元,将具有处理功能的处理器视为该装置的处理单元。如图10所示,该装置包括收发单元1010 和处理单元1020。收发单元1010也可以称为收发器、收发机、收发装置等。处理单元1020也可以称为处理器,处理单板,处理模块、处理装置等。可选的,可以将收发单元1010中用于实现接收功能的器件视为接收单元,将收发单元1010中用于实现发送功能的器件视为发送单元,即收发单元1010包括接收单元和发送单元。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解,收发单元1010用于执行上述方法实施例中终端设备的发送操作和接收操作,处理单元1020用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。
当该通信装置为芯片类的装置或者电路时,该装置可以包括收发单元和处理单元。其中,所述收发单元可以是输入输出电路和/或通信接口;处理单元为集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种通信系统,具体的,通信系统可以包括第一终端设备和第二终端设备,或者还可以包括更多个终端设备或者接入网设备。示例性的,通信系统包括用于实现上述图3的相关功能的第一终端设备、第二终端设备和第三终端设备,或者该通信系统包括用于实现上述图5的相关功能的第一终端设备、第二终端设备和接入网设备,或者该通信系统包括用于实现上述图6的相关功能的第一终端设备、第二终端设备、第三终端设备和接入网设备,或者该通信系统包括用于实现上述图7的实施例相关功能的第一终端设备、第二终端设备和接入网设备。
本申请实施例中还提供一种计算机可读存储介质,包括指令,当其在计算机上运行时,使得计算机执行图3,图5,图6和图7任何一个中的第一终端设备或第二终端设备执行的方法。
本申请实施例中还提供一种计算机程序产品,包括指令,当其在计算机上运行时,使得计算机执行图3,图5,图6和图7任何一个中的第一终端设备或第二终端设备执行的方法。
本申请实施例提供了一种芯片系统,该芯片系统包括处理器,还可以包括存储器,用于实现前述方法中第一终端设备或第二终端设备的功能。该芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
应理解,本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b或c中的至少一项(个),可以表示:a,b,c,a-b,a-c,b-c或a-b-c,其中a,b,c可以是单个,也可以是多个。以及,除非有相反的说明,本申请的说明书和权利要求书及附图中的术语“第一”、“第二”等序数词是用于对多个对象进行区分,不用于限定多个对象的顺序、时序、优先级或者重要程度。例如,第一消息和第二消息,只是为了区分不同的消息,而并不是表示这两种消息的优先级、发送顺序或者重要程度等的不同。在本申请实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。在本申请的说明书和权 利要求书及附图中的“基于”也可以表示“至少部分基于”的含义。
应理解,本申请实施例中提及的处理器可以是CPU,还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解,本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。
需要说明的是,当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时,存储器(存储模块)集成在处理器中。
应注意,本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各 个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本申请的实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
以上所述,仅为本申请的具体实施方式,但本申请实施例的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请实施例的保护范围之内。因此,本申请实施例的保护范围应所述以权利要求的保护范围为准。

Claims (43)

  1. 一种侧行链路SL通信方法,其特征在于,所述方法包括:
    向第二终端设备发送对应第一SL连接的第一SL不连续接收DRX配置,并基于所述第一SL DRX配置接收来自所述第二终端设备的SL数据,其中,所述第一SL连接是第一终端设备与所述第二终端设备之间的SL连接;
    向第三终端设备发送对应第二SL连接的第二SL DRX配置,并基于所述第二SL DRX配置接收来自所述第三终端设备的SL数据,其中,所述第二SL连接是所述第一终端设备与所述第三终端设备之间的SL连接,所述第二SL DRX配置不同于所述第一SL DRX配置。
  2. 根据权利要求1所述的方法,其特征在于,
    所述第一SL DRX配置和所述第二SL DRX配置包括相同的第一配置和不同的第一偏移,所述第一配置包括DRX周期时长和DRX起始时间偏移,所述第一偏移是相对于所述DRX起始时间偏移的偏移。
  3. 根据权利要求1所述的方法,其特征在于,
    所述第一SL DRX配置和所述第二SL DRX配置包括相同的第一配置和不同的第一频率资源信息,所述第一配置包括DRX周期时长和DRX起始时间偏移,所述第一频率资源信息指示向所述第一终端设备发送SL数据使用的频率资源,或者指示向所述第一终端设备发送物理侧行链路控制信道PSCCH使用的频率资源,或者指示向所述第一终端设备发送PSCCH和SL数据使用的频率资源。
  4. 根据权利要求1所述的方法,其特征在于,
    所述第一SL DRX配置和所述第二SL DRX配置包括不同的DRX起始时间偏移。
  5. 根据权利要求2或3所述的方法,其特征在于,在向所述第二终端设备发送所述第一SL DRX配置以及向所述第三终端设备发送所述第二SL DRX配置之前,还包括:
    接收来自接入网设备的空口DRX配置,所述空口DRX配置是所述第一终端设备与所述接入网设备之间的空口数据传输使用的DRX配置,所述第一配置来自所述空口DRX配置,所述接入网设备是所述第一终端设备的服务接入网设备。
  6. 根据权利要求1~3任一项所述的方法,其特征在于,在向所述第二终端设备发送所述第一SL DRX配置以及向所述第三终端设备发送所述第二SL DRX配置之前,还包括:
    接收来自所述第二终端设备的对应所述第一SL连接的业务模型信息;
    基于所述业务模型信息确定对应所述第一SL连接的第一SL DRX配置。
  7. 根据权利要求6所述的方法,其特征在于,在接收来自所述第二终端设备的所述业务模型信息之前,还包括:
    向所述第二终端设备发送第一指示信息,所述第一指示信息请求获取所述业务模型信息。
  8. 根据权利要求6~7任一项所述的方法,其特征在于,
    所述业务模型信息包括剩余包延迟预算信息,所述剩余包延迟预算信息指示数据包到达所述第二终端设备的媒体接入层,或物理层,或无线链路层,或分组数据汇聚协议层时剩余的延迟预算。
  9. 根据权利要求1~8任一项所述的方法,其特征在于,还包括:
    接收来自所述第二终端设备的第二指示信息,所述第二指示信息请求释放所述第一SL DRX配置;
    当确定释放所述第一SL DRX配置时,向所述第二终端设备发送第三指示信息,所述第三指示信息指示释放所述第一SL DRX配置。
  10. 一种侧行链路SL通信方法,其特征在于,所述方法包括:
    与第二终端设备交互对应第一SL连接的业务模型信息,其中,所述第一SL连接是第一终端设备与所述第二终端设备之间的SL连接;
    与所述第二终端设备交互对应所述第一SL连接的第一SL不连续接收DRX配置,所述第一SL DRX配置是基于所述业务模型信息确定的;
    基于所述第一SL DRX配置与所述第二终端设备进行SL通信。
  11. 根据权利要求10所述的方法,其特征在于,与所述第二终端设备交互所述业务模型信息,包括:
    接收来自所述第二终端设备的所述业务模型信息;
    与所述第二终端设备交互所述第一SL DRX配置,包括:
    向所述第二终端设备发送所述第一SL DRX配置;
    基于所述第一SL DRX配置与所述第二终端设备进行SL通信,包括:
    基于所述第一SL DRX配置接收来自所述第二终端设备的SL数据。
  12. 根据权利要求11所述的方法,其特征在于,在向所述第二终端设备发送所述第一SL DRX配置之前,还包括:
    基于所述业务模型信息确定所述第一SL DRX配置。
  13. 根据权利要求11或12所述的方法,其特征在于,在接收来自所述第二终端设备的所述业务模型信息之前,还包括:
    向所述第二终端设备发送第一指示信息,所述第一指示信息请求获取所述业务模型信息。
  14. 根据权利要求11~13任一项所述的方法,其特征在于,还包括:
    向接入网设备发送所述业务模型信息,所述接入网设备是所述第一终端设备的服务接入网设备。
  15. 根据权利要求10所述的方法,其特征在于,与所述第二终端设备交互所述业务模型信息,包括:
    向所述第二终端设备发送所述业务模型信息;
    与所述第二终端设备交互所述第一SL DRX配置,包括:
    接收来自所述第二终端设备的所述第一SL DRX配置;
    基于所述第一SL DRX配置与所述第二终端设备进行SL通信,包括:
    基于所述第一SL DRX配置向所述第二终端设备发送SL数据。
  16. 根据权利要求15所述的方法,其特征在于,在向所述第二终端设备发送所述业务模型信息之前,还包括:
    接收来自所述第二终端设备的第一指示信息,所述第一指示信息请求获取所述业务模型信息。
  17. 根据权利要求10~16任一项所述的方法,其特征在于,
    所述业务模型信息包括剩余包延迟预算信息,所述剩余包延迟预算指示数据包到达媒 体接入层时剩余的延迟预算。
  18. 一种侧行链路SL通信方法,其特征在于,所述方法包括:
    与第二终端设备交互对应第一SL连接的第一SL不连续接收DRX配置,其中,所述第一SL连接是第一终端设备与所述第二终端设备之间的SL连接;
    与所述第二终端设备交互第二指示信息,所述第二指示信息请求释放所述第一SL DRX配置;
    与所述第二终端设备交互第三指示信息,所述第三指示信息指示释放所述第一SL DRX配置;
    释放所述第一SL DRX配置。
  19. 根据权利要求18所述的方法,其特征在于,与所述第二终端设备交互所述第一SL DRX配置,包括:
    向所述第二终端设备发送所述第一SL DRX配置;
    与所述第二终端设备交互所述第二指示信息,包括:
    接收来自所述第二终端设备的所述第二指示信息;
    与所述第二终端设备交互第三指示信息,包括:
    向所述第二终端设备发送所述第三指示信息。
  20. 根据权利要求19所述的方法,其特征在于,在接收来自所述第二终端设备的所述第二指示信息之前,还包括:
    向第三终端设备发送对应第二SL连接的第二SL DRX配置,其中,所述第二SL连接是所述第一终端设备与所述第三终端设备之间的SL连接;
    在向所述第二终端设备发送所述第三指示信息之后,还包括:
    向所述第三终端设备发送第四指示信息,所述第四指示信息指示释放所述第二SL DRX配置。
  21. 根据权利要求18或19所述的方法,其特征在于,在向所述第二终端设备发送所述第三指示信息之后,还包括:
    向接入网设备发送第五指示信息,所述第五指示信息指示所述第一SL DRX配置被释放,所述接入网设备是所述第一终端设备的服务接入网设备。
  22. 根据权利要求19~21任一项所述的方法,其特征在于,在向所述第二终端设备发送所述第一SL DRX配置之前,还包括:
    接收来自所述第二终端设备的对应所述第一SL连接的业务模型信息;
    基于所述业务模型信息确定所述第一SL DRX配置。
  23. 根据权利要求19~22任一项所述的方法,其特征在于,
    所述第一SL DRX配置是所述第一终端设备作为接收方应用的SL DRX配置。
  24. 根据权利要求18所述的方法,其特征在于,与所述第二终端设备交互所述第一SL DRX配置,包括:
    接收来自所述第二终端设备的所述第一SL DRX配置;
    与所述第二终端设备交互所述第二指示信息,包括:
    向所述第二终端设备发送所述第二指示信息;
    与所述第二终端设备交互第三指示信息,包括:
    接收来自所述第二终端设备的所述第三指示信息。
  25. 根据权利要求24所述的方法,其特征在于,向所述第二终端设备发送所述第二指示信息,包括:
    当所述第一终端设备作为发送方的数据传输需求不能得到满足时,向所述第二终端设备发送所述第二指示信息。
  26. 根据权利要求24或25所述的方法,其特征在于,在接收来自所述第二终端设备的所述第一SL DRX配置之前,还包括:
    向所述第二终端设备发送对应所述第一SL连接的业务模型信息,所述第一SL DRX配置是基于所述业务模型信息确定的。
  27. 根据权利要求24~26任一项所述的方法,其特征在于,
    所述第一SL DRX配置是所述第一终端设备作为发送方应用的SL DRX配置。
  28. 根据权利要求18~27任一项所述的方法,其特征在于,
    所述第二指示信息包括原因值,所述原因值指示数据传输需求不能得到满足。
  29. 一种侧行链路SL通信方法,其特征在于,所述方法包括:
    与第二终端设备交互第六指示信息,所述第六指示信息请求发送SL不连续接收DRX配置;
    与所述第二终端设备交互第一SL DRX配置,所述第一SL DRX配置是对应第一SL连接的SL DRX配置,所述第一SL连接是第一终端设备与所述第二终端设备之间的SL连接;
    基于所述第一SL DRX配置与所述第二终端设备进行SL通信。
  30. 根据权利要求29所述的方法,其特征在于,与所述第二终端设备交互所述第六指示信息,包括:
    向所述第二终端设备发送所述第六指示信息;
    与所述第二终端设备交互所述第一SL DRX配置,包括:
    接收来自所述第二终端设备的所述第一SL DRX配置;
    基于所述第一SL DRX配置与所述第二终端设备进行SL通信,包括:
    基于所述第一SL DRX配置接收来自所述第二终端设备的SL数据,所述第一SL DRX配置是所述第一终端设备作为接收方应用的SL DRX配置。
  31. 根据权利要求30所述的方法,其特征在于,在向所述第二终端设备发送所述第六指示信息之前,还包括:
    当所述第一终端设备的电量小于第一门限时,确定发送所述第六指示信息;或者,
    当所述第一终端设备的数据传输量小于第二门限时,确定发送所述第六指示信息;或者,
    当第一终端设备的操作系统指示进入省电模式时,确定发送所述第六指示信息。
  32. 根据权利要求30或31所述的方法,其特征在于,还包括:
    当确定不再需要应用所述第一SL DRX配置时,向所述第二终端设备发送第七指示信息,所述第七指示信息请求释放所述第一SL DRX配置。
  33. 根据权利要求32所述的方法,其特征在于,还包括:
    接收来自所述第二终端设备的第八指示信息,所述第八指示信息指示释放所述第一SL DRX配置;
    基于所述第八指示信息,释放所述第一SL DRX配置。
  34. 根据权利要求29所述的方法,其特征在于,与所述第二终端设备交互所述第六指示信息,包括:
    接收来自所述第二终端设备的所述第六指示信息;
    与所述第二终端设备交互所述第一SL DRX配置,包括:
    向所述第二终端设备发送所述第一SL DRX配置;
    基于所述第一SL DRX配置与所述第二终端设备进行SL通信,包括:
    基于所述第一SL DRX配置向所述第二终端设备发送SL数据,所述第一SL DRX配置是所述第一终端设备作为发送方应用的SL DRX配置。
  35. 根据权利要求34所述的方法,其特征在于,还包括:
    接收来自所述第二终端设备的第七指示信息,所述第七指示信息请求释放所述第一SL DRX配置;
    向所述第二终端设备发送第八指示信息,所述第八指示信息指示释放所述第一SL DRX配置。
  36. 根据权利要求35所述的方法,其特征在于,在向所述第二终端设备发送第八指示信息之后,还包括:
    向接入网设备发送第九指示信息,所述第九指示信息指示所述第一SL DRX配置被释放,所述接入网设备是所述第一终端设备的服务接入网设备。
  37. 根据权利要求34~36所述的方法,其特征在于,在向所述第二终端设备发送所述第一SL DRX配置之后,还包括:
    向接入网设备发送所述第一SL DRX配置,所述接入网设备是所述第一终端设备的服务接入网设备。
  38. 根据权利要求29~37任一项所述的方法,其特征在于,
    所述第六指示信息包括原因值,所述原因值包括电量低,或数据传输量低,或需要进入省电模式。
  39. 一种通信装置,用于执行如权利要求1至9任一项所述的方法,或用于执行如权利要求10至17任一项所述的方法,或用于执行如权利要求18至28任一项所述的方法,或用于执行如权利要求29至38任一项所述的方法。
  40. 一种通信装置,其特征在于,包括至少一个处理器,所述至少一个处理器与存储器耦合;
    所述存储器,用于存储程序代码;
    所述处理器,用于执行所述程序代码,以使所述通信装置执行如权利要求1~9任一项所述的方法,或执行如权利要求10~17任一项所述的方法,或执行如权利要求18~28任一项所述的方法,或执行如权利要求29~38任一项所述的方法。
  41. 一种通信系统,其特征在于,所述通信系统包括执行如权利要求1~9任一项所述方法的通信装置,或包括执行如权利要求10~17任一项所述方法的通信装置,或包括执行如权利要求18~28任一项所述方法的通信装置,或包括执行如权利要求29~38任一项所述方法的通信装置。
  42. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序或指令,所述计算机程序或指令当被执行时,使得如权利要求1~9任一项所述的方法被执行,或如权利要求10~17任一项所述的方法被执行,或如权利要求18~28任一项所述 的方法被执行,或如权利要求29~38任一项所述的方法被执行。
  43. 一种计算机程序产品,其特征在于,所述计算机程序产品包括指令,当所述指令被执行时,使得如权利要求1~9任一项所述的方法被实现,或使得如权利要求10~17任一项所述的方法被实现,或使得如权利要求18~28任一项所述的方法被实现,或使得如权利要求29~38任一项所述的方法被实现。
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