WO2021073483A1 - 一种侧行信息的传输方法、装置及系统 - Google Patents

一种侧行信息的传输方法、装置及系统 Download PDF

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Publication number
WO2021073483A1
WO2021073483A1 PCT/CN2020/120480 CN2020120480W WO2021073483A1 WO 2021073483 A1 WO2021073483 A1 WO 2021073483A1 CN 2020120480 W CN2020120480 W CN 2020120480W WO 2021073483 A1 WO2021073483 A1 WO 2021073483A1
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WIPO (PCT)
Prior art keywords
terminal device
resource
power
information
terminal
Prior art date
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PCT/CN2020/120480
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English (en)
French (fr)
Inventor
王源泉
马江镭
卢磊
玛瑞夫阿民
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华为技术有限公司
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Publication of WO2021073483A1 publication Critical patent/WO2021073483A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • V2D Device to device
  • V2V vehicle to vehicle
  • V2P vehicle to pedestrian
  • V2I/N vehicle to infrastructure/network
  • V2I/N Vehicle to Infrastructure/ Network (V2I/N) communication
  • V2X Vehicle to Infrastructure/ Network
  • terminal devices are allocated resources or independently selected resources to transmit side information.
  • Different services transmitted by different terminal devices have different priorities, and terminal devices with different priorities may choose overlapping or the same
  • the resources to be transmitted are used to transmit the side-line information to be transmitted, and the side-line information includes side-line control information and/or side-line data. In this way, resource conflicts between terminal devices of different priorities will be caused.
  • the embodiments of the present application provide a method, device, and system for transmitting side information, which are used to improve resource utilization efficiency in V2X communication.
  • a method for transmitting sideline information including: a first terminal device determines a first idle resource;
  • the first terminal device receives N second control information from N second terminal devices, where N is an integer greater than or equal to 1, and the nth second control information is used to indicate the nth second terminal device N is greater than or equal to 1 and n is less than or equal to N, and the first reserved resource of the nth second terminal device is used to indicate that the nth second terminal device is used for transmitting the first reserved resource
  • N is an integer greater than or equal to 1
  • n is less than or equal to N
  • the first reserved resource of the nth second terminal device is used to indicate that the nth second terminal device is used for transmitting the first reserved resource
  • the priority of the first terminal device is lower than the priority of the N second terminal devices;
  • the first terminal device transmits the first side line information at a second power, and the second power is less than the first power.
  • the first terminal device uses a second power lower than the first power for transmitting the side-line control information on the idle resources to transmit the side-line information, which reduces the power of the first terminal device to transmit the side-line information to the second terminal device.
  • the interference has improved the efficiency of resource utilization.
  • the first power is the power used by the first terminal device to send the first side line information when the first resource and the second resource do not contain the same resource .
  • the first terminal device determining the first idle resource includes:
  • the first terminal device receives M third control information from M third terminal devices, where M is an integer greater than 1, and the mth third control information is used to indicate the mth third control information of the mth third terminal device. 2.
  • Reserve resources m is greater than or equal to 1 and m is less than or equal to M, and the second reserved resource of the m-th third terminal device is used to indicate that the m-th third terminal device is used to transmit to the third side Information resources.
  • the first terminal device determines the first idle resource according to the M second reserved resources of the M third terminal devices.
  • the first terminal device determining the first idle resource includes:
  • the first terminal device determines that a resource whose reference signal received power is less than a first threshold is the first idle resource.
  • the first terminal device determining the first idle resource includes:
  • the first terminal device receives M third control information from M third terminal devices, where M is an integer greater than 1, and the mth third control information is used to indicate the mth third control information of the mth third terminal device.
  • M is an integer greater than 1
  • the mth third control information is used to indicate the mth third control information of the mth third terminal device.
  • Reserve resources m is greater than or equal to 1 and m is less than or equal to M, and the second reserved resource of the m-th third terminal device is used to indicate that the m-th third terminal device is used to transmit to the third side Information resources;
  • Determining, by the first terminal device, a resource whose reference signal received power is less than a first threshold is a first sub-idle resource
  • the first terminal device determines that the first idle resource includes the first sub-idle resource and M second reserved resources of the M third terminal devices.
  • the first terminal device receives the N second control information from the N second terminal devices at a first time
  • the first terminal device receives the N fourth control information from the N second terminal devices at the second time, and the n fourth control information is used to indicate the third control information of the n second terminal device.
  • Reserved resources the third reserved resource of the nth second terminal device is used to indicate the resource used by the nth second terminal device to transmit fourth sideline information, and the second time is later than all Narrate the first time;
  • the first terminal device transmits the first side line information at the first power.
  • the sending, by the first terminal device, the first side line information at the first power includes:
  • the first terminal device restores the power for transmitting the first side line information from the second power to the first power, and transmits the first side line information with the first power.
  • the first terminal device sends first control information to the N second terminal devices and/or the M third terminal devices, and the first control information is used to indicate all The first resource.
  • the priority of the first terminal device being lower than the priority of the N second terminal devices includes:
  • the priority of the service to be transmitted of the first terminal device is lower than the priority of the service to be transmitted of the N second terminal devices.
  • the first resource includes an initial transmission resource and/or a retransmission resource
  • the initial transmission resource is used to transmit the first side row information for the first time
  • the retransmission resource is used for the i-th
  • the first side line information is transmitted once, and the i is an integer greater than or equal to 2.
  • the difference between the second power and the first power is the highest priority according to the priority of the first terminal device and the priority of the N second terminal devices Determined by the difference;
  • the difference between the second power and the first power is determined according to the received power of the reference signal of the side link.
  • a second terminal device receives Q pieces of first control information from Q pieces of first terminal devices, where Q is an integer greater than or equal to 1, and the qth piece of first control information
  • the information is used to indicate the fourth reserved resource of the q-th first terminal device, q is greater than or equal to 1 and q is less than or equal to Q, and the fourth reserved resource of the q-th first terminal device is used to indicate the
  • the q-th first terminal device is used to transmit resources of the first side line information, and the priority of the Q first terminal devices is lower than the priority of the second terminal device;
  • the second terminal device determines a fourth resource, where the fourth resource includes resources in the Q fourth reserved resources of the Q first terminal devices, and the fourth resource is used for the second
  • the terminal device transmits the second side line information
  • the second terminal device transmits the second side row information at a third power, the third power is greater than a fourth power, and the fourth power is for the second terminal device to transmit the second idle resource on a second idle resource.
  • the power used by the second side row information is not limited to a fourth power.
  • the second terminal device uses the third power higher than the fourth power for transmitting the side-line control information on the idle resources to transmit the side-line information, which improves the success rate of the second terminal device in transmitting the side-line information and increases the resources. usage efficiency.
  • the second terminal device determines that there is no second idle resource, and the second idle resource is a resource whose reference signal received power is less than a first threshold.
  • the determining that the second terminal device does not have the second idle resource includes:
  • the first terminal device determines that there is no resource whose reference signal received power is less than a first threshold.
  • the second terminal device receives the Q first control information from the Q first terminal devices at a third time;
  • the second terminal device determines that the second idle resource exists at a fourth time
  • the second terminal device transmits the second side line information on the second idle resource with the fourth power.
  • the second terminal device using the fourth power to send the second side row information on the second idle resource includes:
  • the second terminal device restores the power for transmitting the second side line information from the third power to the fourth power, and uses the fourth power to transmit the second idle resource on the second idle resource. Two side line information.
  • the second terminal device sends third control information to the Q first terminal devices and/or the M third terminal devices, and the third control information is used to indicate all The fourth resource.
  • the priority of the Q first terminal devices being lower than the priority of the second terminal device includes:
  • the priority of the service to be transmitted of the Q first terminal devices is lower than the priority of the service to be transmitted of the second terminal device.
  • the fourth resource includes an initial transmission resource and/or a retransmission resource
  • the initial transmission resource is used to transmit the second side row information for the first time
  • the retransmission resource is used for the i-th
  • the second side line information is transmitted once, and the i is an integer greater than or equal to 2.
  • the difference between the third power and the fourth power is the highest priority according to the priority of the second terminal device and the priority of the Q first terminal devices Determined by the difference;
  • the difference between the third power and the fourth power is determined according to the received power of the reference signal of the side link.
  • a first terminal device which includes:
  • the processing module is configured to determine a first resource according to the first idle resource, where the first resource is used by the first terminal device to send first sideline information at a first power;
  • the transceiver module is configured to receive N second control information from N second terminal devices, where N is an integer greater than or equal to 1, and the nth second control information is used to indicate the status of the nth second terminal device.
  • the first reserved resource, n is greater than or equal to 1 and n is less than or equal to N, and the first reserved resource of the nth second terminal device is used to indicate that the nth second terminal device is used to transmit the second Resources of sideline information, the priority of the first terminal device is lower than the priority of the N second terminal devices;
  • the processing module is configured to determine that the first resource and the second resource include the same resource, and the second resource includes N first reserved resources of the N second terminal devices;
  • the transceiver module is configured to send the first side line information at a second power, where the second power is less than the first power.
  • the first terminal device uses a second power lower than the first power for transmitting the side-line control information on the idle resources to transmit the side-line information, which reduces the power of the first terminal device to transmit the side-line information to the second terminal device.
  • the interference has improved the efficiency of resource utilization.
  • the first power is the power used by the transceiver module to send the first side line information when the first resource and the second resource do not include the same resource.
  • the transceiver module is configured to receive M third control information from M third terminal devices, where M is an integer greater than 1, and the mth third control information is used to indicate The second reserved resource of the mth third terminal device, m is greater than or equal to 1 and m is less than or equal to M, and the second reserved resource of the mth third terminal device is used to indicate the mth Three terminal devices are used to transmit resources of the third side line information;
  • the processing module is configured to determine the first idle resource according to the M second reserved resources of the M third terminal devices.
  • the processing module configured to determine the first idle resource includes:
  • the processing module is configured to determine that a resource whose reference signal received power is less than a first threshold is the first idle resource.
  • the transceiver module is configured to receive M third control information from M third terminal devices, where M is an integer greater than 1, and the mth third control information is used to indicate The second reserved resource of the mth third terminal device, m is greater than or equal to 1 and m is less than or equal to M, and the second reserved resource of the mth third terminal device is used to indicate the mth Three terminal devices are used to transmit resources of the third side line information;
  • the processing module is configured to determine that a resource with a reference signal received power less than a first threshold is a first sub-idle resource
  • the processing module is configured to determine that the first idle resource includes the first sub-idle resource and M second reserved resources of the M third terminal devices.
  • the transceiver module receives the N second control information from the N second terminal devices at a first time
  • the transceiver module is further configured to receive the N fourth control information from the N second terminal devices at a second time, and the n fourth control information is used to indicate the status of the n second terminal device
  • the third reserved resource, the third reserved resource of the nth second terminal device is used to indicate the resource used by the nth second terminal device to transmit fourth sideline information, and the second time is later At the first time;
  • the processing module is configured to determine that the first resource and the third resource do not include the same resource, and the third resource includes N third reserved resources of the N second terminal devices;
  • the transceiver module is further configured to send the first side line information at the first power.
  • the transmitting, by the transceiver module, the first side line information at the first power includes:
  • the processing module is configured to restore the power for transmitting the first side line information from the second power to the first power
  • the transceiver module is configured to send the first side line information at the first power.
  • the transceiver module is further configured to send first control information to the N second terminal devices and/or the M third terminal devices, where the first control information is used for Indicates the first resource.
  • the priority of the first terminal device being lower than the priority of the N second terminal devices includes:
  • the priority of the service to be transmitted of the first terminal device is lower than the priority of the service to be transmitted of the N second terminal devices.
  • the first resource includes an initial transmission resource and/or a retransmission resource
  • the initial transmission resource is used to transmit the first side row information for the first time
  • the retransmission resource is used for the i-th
  • the first side line information is transmitted once, and the i is an integer greater than or equal to 2.
  • the difference between the second power and the first power is the highest priority according to the priority of the first terminal device and the priority of the N second terminal devices Determined by the difference;
  • the difference between the second power and the first power is determined according to the received power of the reference signal of the side link.
  • a second terminal device which includes:
  • the transceiver module is configured to receive Q first control information from Q first terminal devices, where Q is an integer greater than or equal to 1, and the qth first control information is used to indicate the qth first terminal device
  • Q is an integer greater than or equal to 1
  • the qth first control information is used to indicate the qth first terminal device
  • the fourth reserved resource, q is greater than or equal to 1 and q is less than or equal to Q
  • the fourth reserved resource of the qth first terminal device is used to indicate that the qth first terminal device is used to transmit the first Resources of sideline information, the priority of the Q first terminal devices is lower than the priority of the second terminal device;
  • a processing module configured to determine a fourth resource, where the fourth resource includes resources in the Q fourth reserved resources of the Q first terminal devices, and the fourth resource is used for the second terminal
  • the device transmits the second side line information
  • the transceiver module is further configured to send the second side line information at a third power, where the third power is greater than the fourth power, and the fourth power is for the second terminal device to send the information on a second idle resource.
  • the power used by the second side row information is further configured to send the second side line information at a third power, where the third power is greater than the fourth power, and the fourth power is for the second terminal device to send the information on a second idle resource.
  • the second terminal device uses the third power higher than the fourth power for transmitting the sideline control information on the idle resources to transmit the sideline information, which improves the success rate of the second terminal device for transmitting the sideline information and improves the resources. usage efficiency.
  • the processing module is further configured to determine that there is no second idle resource, and the second idle resource is a resource whose reference signal received power is less than a first threshold.
  • the processing module configured to determine that there is no second idle resource includes:
  • the processing module is configured to determine that there is no resource whose reference signal received power is less than the first threshold.
  • the transceiver module is configured to receive the Q first control information from the Q first terminal devices at a third time;
  • the processing module is configured to determine that the second idle resource exists at a fourth time
  • the transceiver module is configured to send the second side row information on the second idle resource with the fourth power.
  • the transceiver module configured to send the second side row information on the second idle resource at the fourth power includes:
  • the processing module is configured to restore the power for transmitting the second side line information from the third power to the fourth power;
  • the transceiver module is configured to send the second side row information on the second idle resource with the fourth power.
  • the transceiver module is further configured to send third control information to the Q first terminal devices and/or the M third terminal devices, where the third control information is used for Indicates the fourth resource.
  • the priority of the Q first terminal devices being lower than the priority of the second terminal device includes:
  • the priority of the service to be transmitted of the Q first terminal devices is lower than the priority of the service to be transmitted of the second terminal device.
  • the fourth resource includes an initial transmission resource and/or a retransmission resource
  • the initial transmission resource is used to transmit the second side row information for the first time
  • the retransmission resource is used for the i-th
  • the second side line information is transmitted once, and the i is an integer greater than or equal to 2.
  • the difference between the third power and the fourth power is the highest priority according to the priority of the second terminal device and the priority of the Q first terminal devices Determined by the difference;
  • the difference between the third power and the fourth power is determined according to the received power of the reference signal of the side link.
  • the first, second, third, and fourth control information can be carried in the physical layer control channel, or can be demodulated through the data channel
  • the reference signal is implicitly carried.
  • the nth fourth control information may also be used to indicate the usage status of the first reserved resource of the nth second terminal device, and the nth The first reserved resource usage status of the second terminal device includes an indication that the first reserved resource is not used continuously.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store a computer program, and when the computer program is run on a computer, the computer can execute claims 1-9 or 10 The method described in any one of ⁇ 18.
  • a communication device in a sixth aspect, includes:
  • Memory used to store instructions
  • At least one processor is configured to call and execute the instructions from the memory, so that the communication device implements the method according to any one of claims 1-9 or 10-18.
  • a communication device may be the first communication device in the above method design.
  • the first communication device is a chip provided in a communication device.
  • the first communication device is a terminal device.
  • the communication device is a terminal device.
  • the communication device includes: a communication interface for sending and receiving information, or in other words, for communicating with other devices; and a processor, where the processor is coupled with the communication interface.
  • the communication device may further include a memory for storing computer executable program code.
  • the communication device may not include a memory, and the memory may be located outside the communication device.
  • the program code stored in the memory includes instructions, and when the processor executes the instructions, the communication device executes the method in the first aspect or any one of the possible implementation manners.
  • the communication interface may be a transceiver in the first communication device, for example, implemented by an antenna, a feeder, and a codec in the communication device.
  • the communication interface may be an input/output interface of the chip, such as an input/output pin.
  • a communication device may be the second communication device in the above method design.
  • the second communication device is a chip provided in a communication device.
  • the second communication device is a terminal device.
  • the communication device is a terminal device.
  • the communication device includes: a communication interface for sending and receiving information, or in other words, for communicating with other devices; and a processor, where the processor is coupled with the communication interface.
  • the communication device may further include a memory for storing computer executable program code.
  • the communication device may not include a memory, and the memory may be located outside the communication device.
  • the program code stored in the memory includes instructions, and when the processor executes the instructions, the communication device is caused to execute the method in the second aspect or any one of the possible implementation manners.
  • the communication interface may be a transceiver in the first communication device, for example, implemented by an antenna, a feeder, and a codec in the communication device.
  • the communication interface may be an input/output interface of the chip, such as an input/output pin.
  • a communication system which includes the communication device described in the third aspect, the communication device described in the fifth aspect, or the communication device described in the seventh aspect; and/or, the communication system includes a first The communication device described in the fourth aspect, the communication device described in the sixth aspect, or the communication device described in the eighth aspect.
  • a computer storage medium is provided, and the computer-readable storage medium is used to store computer instructions.
  • the computer instructions run on a computer, the computer executes the first aspect or any of the first aspects. The method described in one possible implementation.
  • a computer storage medium is provided.
  • the computer-readable storage medium is used to store computer instructions.
  • the computer instructions run on a computer, the computer executes the second aspect or the second aspect described above. The method described in any one of the possible implementations.
  • a computer program product containing instructions is provided, the computer program product is used to store computer instructions, and when the computer instructions run on a computer, the computer executes the first aspect or the first aspect described above.
  • a computer program product containing instructions is provided.
  • the computer program product is used to store computer instructions.
  • the computer instructions run on a computer, the computer can execute the second aspect or the second aspect. The method described in any one of the possible implementations.
  • the solution provided by the embodiments of the present application provides a power control solution for a scenario in which a terminal device sends a sideline signal to multiple receiving ends. Through power control, the transmission success rate of the sideline signal is improved.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the application
  • FIG. 2 is a flowchart of a method for transmitting side information according to an embodiment of this application
  • FIG. 3 is a schematic diagram of the structure of the first terminal device or the second terminal device in the embodiment of FIG. 2 of this application;
  • FIG. 5 is a schematic structural diagram of the first terminal device or the second terminal device in the embodiment of FIG. 4 of this application;
  • FIG. 6 is a flowchart of a method for transmitting side information according to an embodiment of the application.
  • Fig. 7 is a flowchart of another method for transmitting side information according to an embodiment of the application.
  • Terminal devices including devices that provide users with voice and/or data connectivity, specifically, include devices that provide users with voice, or include devices that provide users with data connectivity, or include devices that provide users with voice and data connectivity Sexual equipment.
  • it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • RAN radio access network
  • the terminal device may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle to everything (V2X) terminal equipment , Machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit, subscriber station (subscriber) station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user Agent (user agent), or user equipment (user device), etc.
  • UE user equipment
  • M2M/MTC Machine-to-machine/machine-type communications
  • IoT Internet of things
  • subscriber unit subscriber station (subscriber) station)
  • mobile station mobile station
  • remote station remote station
  • access point access point
  • AP remote terminal
  • remote terminal remote terminal
  • access terminal access terminal
  • user terminal user terminal
  • user Agent
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on.
  • PCS personal communication service
  • PCS cordless phones
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as vehicle-mounted terminal devices.
  • the vehicle-mounted terminal devices are, for example, also called on-board units (OBU). ).
  • the terminal device of the embodiment of the present application may also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit built into a vehicle as one or more components or units. Groups, on-board components, on-board chips, or on-board units can implement the method of the present application.
  • the terminal device may also include a relay. Or it can be understood that everything that can perform data communication with the base station can be regarded as a terminal device.
  • the terminal device may be a terminal device or a module for realizing the functions of the terminal device.
  • the module may be installed in the terminal device or may be installed independently of the terminal device.
  • the module may be, for example, a chip system.
  • Network equipment for example, including access network (AN) equipment, such as a base station (e.g., access point), which can refer to equipment that communicates with wireless terminal equipment through one or more cells on the air interface in the access network
  • AN access network
  • a base station e.g., access point
  • V2X vehicle-to-everything
  • the base station can be used to convert received air frames and IP packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network can include the IP network.
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include a long term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution-advanced (LTE-A) system, or may comprise a fifth generation mobile communication technology (the 5 th generation, 5G) a new air interface (new radio, NR) system (also referred to as NR system) Next Generation node B (next generation node B, gNB ) or else It may include a centralized unit (CU) and a distributed unit (DU) in a cloud radio access network (Cloud RAN) system, which is not limited in the embodiment of the present application.
  • LTE long term evolution
  • LTE-A long term evolution-advanced
  • LTE-A long term evolution-advanced
  • 5G 5 th generation
  • NR new air interface
  • Next Generation node B next generation node
  • network equipment may also include core network equipment, but because the technical solutions provided in the embodiments of this application mainly involve access network equipment, in the following text, unless otherwise specified, the “core network equipment” described refers to Core network equipment, and the description of "network equipment” or “access network equipment” refers to the access network equipment.
  • V2X is the interconnection between vehicles and the outside world, which is the foundation and key technology of future smart cars, autonomous driving, and smart transportation systems. V2X will optimize the specific application requirements of V2X based on the existing device-to-device (D2D) technology. It is necessary to further reduce the access delay of V2X devices and solve the problem of resource conflicts.
  • D2D device-to-device
  • V2X specifically includes vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct communication, and There are several application requirements such as vehicle-to-network (V2N) communication and interaction.
  • V2V refers to the communication between vehicles
  • V2P refers to the communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers)
  • V2I refers to the communication between vehicles and network equipment, such as RSU
  • V2N refers to the communication between the vehicle and the base station/network.
  • V2P can be used as a safety warning for pedestrians or non-motorized vehicles on the road.
  • vehicles can communicate with roads and even other infrastructure, such as traffic lights, roadblocks, etc., to obtain road management information such as traffic light signal timing.
  • V2V can be used for information interaction and reminding between vehicles, and the most typical application is for the anti-collision safety system between vehicles.
  • V2N is currently the most widely used form of Internet of Vehicles. Its main function is to connect vehicles to a cloud server through a mobile network, and use the navigation, entertainment, or anti-theft application functions provided by the cloud server.
  • V2X it is mainly the communication between terminal equipment and terminal equipment.
  • the current standard protocols support broadcast, multicast, and unicast.
  • the broadcast mode means that the terminal device as the sender uses the broadcast mode to send data, and multiple terminal device ends can receive sidelink control information (SCI) or sidelink sharing from the sender Channel (sidelink shared channel, SSCH).
  • SCI sidelink control information
  • SSCH sidelink shared channel
  • the way to ensure that all terminal devices parse the control information from the sender is that the sender does not scramble the control information, or the sender uses a scrambling code known to all terminal devices to add to the control information. Disturb.
  • the multicast mode is similar to broadcast transmission.
  • the terminal equipment as the sender uses the broadcast mode for data transmission, and a group of terminal equipment can parse SCI or SSCH.
  • the unicast mode is that one terminal device sends data to another terminal device, and other terminal devices do not need or cannot parse the data.
  • the side link refers to the link between the terminal equipment and the terminal equipment.
  • Uplink refers to the link between terminal equipment and network equipment.
  • the sideline information includes sidelink control information (SCI) and/or sideline data.
  • SCI sidelink control information
  • sideline data includes sidelink control information (SCI) and/or sideline data.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • first and second are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • the first power control factor and the second power control factor are only for distinguishing different power control factors, and do not necessarily indicate the difference in content, priority, or importance of the two power control factors.
  • the technical solutions provided by the embodiments of the present application can be applied to the LTE system, or the NR system, or the next generation mobile communication system or other similar communication systems.
  • the technical solutions provided in the embodiments of the present application may be applied to V2X scenarios, such as LTE-V2X or NR-V2X, or other V2X scenarios.
  • FIG. 2 is a method for transmitting side information according to an embodiment of the application.
  • FIG. 3 is a schematic diagram of the structure of the first terminal device or the second terminal device involved in FIG. 2.
  • the transmission method of side line information shown in Figure 2 includes:
  • Step 21 The first terminal device determines a first idle resource.
  • Step 22 The first terminal device determines a first resource according to the first idle resource, and the first resource is used by the first terminal device to transmit first sideline information at a first power.
  • Idle resources are resources that are not occupied or reserved by other terminal devices or the measured reference signal received power RSRP value is less than the first threshold.
  • the size of the first threshold may be predefined by the protocol or configured by the network device.
  • Step 23 The first terminal device receives N second control information from N second terminal devices, where N is an integer greater than or equal to 1, and the nth second control information is used to indicate the nth
  • the first reserved resource of the second terminal device n is greater than or equal to 1 and n is less than or equal to N
  • the first reserved resource of the nth second terminal device is used to indicate the use of the nth second terminal device
  • the priority of the first terminal device is lower than the priority of the N second terminal devices.
  • N is one, that is, there is only one second terminal device.
  • the control information of this application is not only used to indicate the reserved resources, but can also contain other content.
  • Step 24 The first terminal device determines that the first resource and the second resource include the same resource, and the second resource includes N first reserved resources of the N second terminal devices.
  • the same resource can be part of the same resource, or it can be all the same resource.
  • the first resource and the second resource are only part of the same resource, which can be called the same resource, or the first resource and the second resource are exactly the same. Called to contain the same resources.
  • Step 25 The first terminal device transmits the first side line information at a second power, where the second power is less than the first power.
  • the first power is the power calculated by the first terminal device using the existing transmission power formula of the side travel information.
  • the first terminal device transmits the first side line information at the second power in the first resource.
  • the first terminal device uses a second power lower than the first power for transmitting the side-line control information on the idle resources to transmit the side-line information, which reduces the power of the first terminal device to transmit the side-line information to the second terminal device.
  • the interference improves resource utilization efficiency and reduces the complexity of system processing. At the same time, it is ensured that the first terminal device transmits data on the original first resource, and the transmission robustness of the first terminal is improved.
  • the first power is the power used by the first terminal device to send the first side line information when the first resource and the second resource do not include the same resource.
  • the determining the first idle resource by the first terminal device includes: the first terminal device receives M pieces of third control information from M third terminal devices, where M is an integer greater than 1, and the mth
  • the third control information is used to indicate the second reserved resource of the m-th third terminal device, m is greater than or equal to 1 and m is less than or equal to M, and the second reserved resource of the m-th third terminal device is used
  • the first terminal device determines the first terminal device according to the M second reserved resources of the M third terminal devices Free resources.
  • the M third terminal devices may or may not include the N second terminal devices, and may also include other terminal devices.
  • the first terminal device excludes resources other than the second reserved resource as the first idle resource.
  • the first terminal device determines that a resource whose reference signal received power is less than a first threshold is the first idle resource.
  • the first terminal device receives M third control information from M third terminal devices, where M is an integer greater than 1, and the mth third control information is used to indicate the mth third control information.
  • M is an integer greater than 1
  • the mth third control information is used to indicate the mth third control information.
  • the second reserved resource of the terminal device m is greater than or equal to 1 and m is less than or equal to M, and the second reserved resource of the m-th third terminal device is used to indicate that the m-th third terminal device is used for Resources for transmitting third-party information;
  • Determining, by the first terminal device, a resource whose reference signal received power is less than a first threshold is a first sub-idle resource
  • the first terminal device determines that the first idle resource includes the first sub-idle resource and M second reserved resources of the M third terminal devices.
  • the first terminal device receives the N second control information from the N second terminal devices at a first time; the first terminal device receives the N second control information from the N second terminal devices at a second time
  • the N fourth control information of the second terminal device, the nth fourth control information is used to indicate the third reserved resource of the nth second terminal device, and the third reserved resource of the nth second terminal device
  • the reserved resource is used to indicate the resource used by the nth second terminal device to transmit fourth sideline information, and the second time is later than the first time; the first terminal device determines that the first The resource and the third resource do not include the same resource, and the third resource includes N third reserved resources of the N second terminal devices; the first terminal device transmits the first terminal device at the first power Side line information.
  • the sending, by the first terminal device, the first sideline information at the first power includes: the first terminal device recovers the power for sending the first sideline information from the second power Is the first power, and the first side line information is sent at the first power.
  • the first terminal device sends first control information to the N second terminal devices and/or the M third terminal devices, where the first control information is used to indicate the first resource .
  • the priority of the first terminal device being lower than the priority of the N second terminal devices includes: the priority of the service to be transmitted of the first terminal device is lower than the priority of the N second terminals The priority of the device's services to be transmitted.
  • the first resource includes an initial transmission resource and/or a retransmission resource
  • the initial transmission resource is used to transmit the first side row information for the first time
  • the retransmission resource is used to transmit the i-th
  • the first side row information, the i is an integer greater than or equal to 2.
  • the difference between the second power and the first power is determined according to the difference between the priority of the first terminal device and the highest priority among the priorities of the N second terminal devices
  • the difference between the second power and the first power is determined according to the received power of the reference signal of the side link.
  • multiple differences between the second power and the first power can be predefined, and the specific difference can be obtained by looking up a table.
  • the first, second, third, and fourth control information may be carried in the physical layer control channel, or implicitly carried by the demodulation reference signal of the data channel.
  • the nth fourth control information may also be used to indicate the usage status of the first reserved resource of the nth second terminal device, and the usage status of the first reserved resource of the nth second terminal device Including indicating that the first reserved resource is not used continuously.
  • Fig. 3 is a structural diagram of a first terminal device or a second terminal device.
  • the first terminal device or the second terminal device includes a transceiver module and a processing module.
  • the first terminal device or the second terminal device may be a terminal device, and may also be a chip applied to the terminal device or other combination devices or components having the functions of the above terminal device.
  • the transceiver module may be a transceiver, which may include an antenna and a radio frequency circuit
  • the processing module may be a processor, such as a baseband processor, which may include one or more CPUs.
  • the transceiver module may be a radio frequency unit
  • the processing module may be a processor, such as a baseband processor.
  • the transceiver module may be an input/output interface of a chip system (such as a baseband chip), and the processing module may be a processor of the chip system, and may include one or more central processing units.
  • the processing module may be used to perform all operations performed by the first terminal device in the embodiment shown in FIG. 2 except for the transceiving operation, and/or other processes used to support the technology described herein.
  • the transceiving module may be used to perform all the transceiving operations performed by the terminal device in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein.
  • the transceiver module can be replaced by a transceiver, when it receives a signal, it can be replaced by a receiving module or a receiver, when it sends a signal, it can be replaced by a sending module or transmitter, and the processing module can be replaced by one or more processors.
  • FIG. 4 is a method for transmitting side information according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of the structure of the first terminal device or the second terminal device involved in FIG. 4.
  • the transmission method of side line information shown in Fig. 4 includes:
  • Step 41 The second terminal device receives Q first control information from Q first terminal devices, where Q is an integer greater than or equal to 1, and the qth first control information is used to indicate the qth first terminal.
  • Q is an integer greater than or equal to 1
  • the qth first control information is used to indicate the qth first terminal.
  • the fourth reserved resource of the device q is greater than or equal to 1 and q is less than or equal to Q
  • the fourth reserved resource of the qth first terminal device is used to indicate that the qth first terminal device is used for transmission
  • the priority of the Q first terminal devices is lower than the priority of the second terminal device.
  • the first control information may also include or indicate other information.
  • the value of Q is 1, and there is only one first terminal device.
  • Step 42 The second terminal device determines a fourth resource, where the fourth resource includes resources in the Q fourth reserved resources of the Q first terminal devices, and the fourth resource is used for all
  • the second terminal device transmits second side line information.
  • the fourth resource is that the second terminal device seizes the resource of the first terminal device.
  • Step 43 The second terminal device transmits the second side line information at a third power, where the third power is greater than the fourth power, and the fourth power is the second idle resource of the second terminal device.
  • the power used to transmit the second side line information In order to improve the transmission reliability of the side line information, since the second terminal device has a higher priority, the transmission power of the side line information can be increased.
  • the second terminal device uses the third power higher than the fourth power for transmitting the side-line control information on the idle resources to transmit the side-line information, which improves the success rate of the second terminal device in transmitting the side-line information and increases the resources. usage efficiency. At the same time, the transmission reliability of the first terminal device can be ensured.
  • the second terminal device determines that there is no second idle resource, and the second idle resource is a resource whose reference signal received power is less than a first threshold.
  • the determining that the second terminal device does not have the second idle resource includes: the first terminal device determining that there is no resource whose reference signal received power is less than a first threshold.
  • the second terminal device receives the Q first control information from the Q first terminal devices at the third time; the second terminal device determines that the second terminal device exists at the fourth time Idle resource; the second terminal device sends the second sideline information on the second idle resource with the fourth power.
  • the second terminal device sending the second side line information on the second idle resource at the fourth power includes: the second terminal device will send the second side line information The power is restored from the third power to the fourth power, and the second side row information is sent on the second idle resource with the fourth power.
  • the second terminal device sends third control information to the Q first terminal devices and/or the M third terminal devices, and the third control information is used to indicate the fourth resource .
  • the priority of the Q first terminal devices being lower than the priority of the second terminal device includes: the priority of the services to be transmitted of the Q first terminal devices is lower than the priority of the second terminal The priority of the device's services to be transmitted.
  • the fourth resource includes an initial transmission resource and/or a retransmission resource
  • the initial transmission resource is used to transmit the second side row information for the first time
  • the retransmission resource is used to transmit the i-th In the second side row information, the i is an integer greater than or equal to 2.
  • the difference between the third power and the fourth power is determined according to the difference between the priority of the second terminal device and the highest priority among the priorities of the Q first terminal devices Or the difference between the third power and the fourth power is determined according to the received power of the reference signal of the side link.
  • various third power and fourth power difference values can be predefined, and the specific difference value can be obtained by looking up a table.
  • the first, second, third, and fourth control information may be carried in the physical layer control channel, or implicitly carried by the demodulation reference signal of the data channel.
  • the nth fourth control information may also be used to indicate the usage status of the first reserved resource of the nth second terminal device, and the usage status of the first reserved resource of the nth second terminal device Including indicating that the first reserved resource is not used continuously.
  • Fig. 5 is a structural diagram of a first terminal device or a second terminal device.
  • the first terminal device or the second terminal device includes a transceiver module and a processing module.
  • the first terminal device or the second terminal device may be a terminal device, and may also be a chip applied to the terminal device or other combination devices or components having the functions of the above terminal device.
  • the transceiver module may be a transceiver, which may include an antenna and a radio frequency circuit
  • the processing module may be a processor, such as a baseband processor, which may include one or more CPUs.
  • the transceiver module may be a radio frequency unit
  • the processing module may be a processor, such as a baseband processor.
  • the transceiver module may be an input/output interface of a chip system (such as a baseband chip), and the processing module may be a processor of the chip system, and may include one or more central processing units.
  • the processing module may be used to perform all operations performed by the first terminal device in the embodiment shown in FIG. 4 except for the transceiving operation, and/or other processes used to support the technology described herein.
  • the transceiving module may be used to perform all the transceiving operations performed by the terminal device in the embodiment shown in FIG. 4, and/or to support other processes of the technology described herein.
  • the transceiver module can be replaced by a transceiver, when it receives a signal, it can be replaced by a receiving module or a receiver, when it sends a signal, it can be replaced by a sending module or transmitter, and the processing module can be replaced by one or more processors.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the method shown in FIG. 2 provided by the foregoing method embodiment.
  • the process related to the terminal device in the embodiment is not limited to a computer-readable storage medium, the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the method shown in FIG. 2 provided by the foregoing method embodiment. The process related to the terminal device in the embodiment.
  • An embodiment of the present application also provides a computer-readable storage medium that stores a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the method shown in FIG. 4 provided by the foregoing method embodiment. The process related to the terminal device in the embodiment.
  • the embodiments of the present application also provide a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 2 provided by the above method embodiment The flow related to the terminal device.
  • the embodiment of the present application also provides a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 4 provided by the above method embodiment The flow related to the terminal device.
  • processors mentioned in the embodiments of this application may be a CPU, or other general-purpose processors, digital signal processors (digital signal processors, DSP), application specific integrated circuits (ASICs), ready-made Field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM, DR RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, 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 the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

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Abstract

本申请涉及一种通信方法及装置，可应用于车联网，例如V2X、LTE-V、V2V等，或可用于智能驾驶，智能网联车等领域。第一终端装置确定第一空闲资源；所述第一终端装置根据所述第一空闲资源确定第一资源；所述第一终端装置接收来自N个第二终端装置的N个第二控制信息，所述第一终端装置的优先级低于所述N个第二终端装置的优先级；所述第一终端装置确定所述第一资源与第二资源包含相同的资源，所述第二资源包括所述N个第二终端装置的N个第一预留资源；所述第一终端装置在第一资源以第二功率发送所述第一侧行信息，所述第二功率小于所述第一功率，由此，可以提高资源利用效率，降低系统处理的复杂度。

Description

一种侧行信息的传输方法、装置及系统
本申请要求于2019年10月17日提交中国专利局、申请号为201910991187.9、发明名称为“一种侧行信息的传输方法、装置及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
设备到设备(Device to Device，D2D)通信、车与车(Vehicle to Vehicle，V2V)通信、车与行人V2P(Vehicle to Pedestrian，V2P)通信或车与基建/网络V2I/N(Vehicle to Infrastructure/Network，V2I/N)通信是终端装置(terminal device)之间直接进行通信的技术，V2V、V2P以及V2I/N统称为V2X，即车与任何事物相通信。在V2X通信中，终端装置会被配置资源或者自主选取资源来传输侧行信息，不同的终端装置传输的不同的业务具有不同的优先级，对于不同优先级的终端装置可能会选择重叠的或者相同的资源来传输待传输侧行信息，侧行信息包括侧行控制信息和/或侧行数据，这样，就会造成不同优先级的终端装置之间的资源冲突。
发明内容
本申请实施例提供一种侧行信息的传输方法、装置及系统，用于提高V2X通信中的资源利用效率。
第一方面，提供一种侧行信息的传输方法，包括：第一终端装置确定第一空闲资源；
所述第一终端装置根据所述第一空闲资源确定第一资源，所述第一资源用于所述第一终端装置以第一功率发送第一侧行信息；
所述第一终端装置接收来自N个第二终端装置的N个第二控制信息，所述N为大于或等于1的整数，第n个第二控制信息用于指示第n个第二终端装置的第一预留资源，n大于或等于1且n小于或等于N，所述第n个第二终端装置的第一预留资源用于指示所述第n个第二终端装置用于传输第二侧行信息的资源，所述第一终端装置的优先级低于所述N个第二终端装置的优先级；
所述第一终端装置确定所述第一资源与第二资源包含相同的资源，所述第二资源包括所述N个第二终端装置的N个第一预留资源；
所述第一终端装置以第二功率发送所述第一侧行信息，所述第二功率小于所述第一功率。
由此，第一终端装置采用比在空闲资源上传输侧行控制信息的第一功率低的第二功 率来传输侧行信息，降低了第一终端装置传输侧行信息的功率对第二终端装置的干扰，提高了资源利用效率。
在一种可能的设计中，所述第一功率为所述第一资源与所述第二资源不包含相同的资源时，所述第一终端装置发送所述第一侧行信息所采用的功率。
在一种可能的设计中，所述第一终端装置确定第一空闲资源包括：
所述第一终端装置接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源。所述第一终端装置根据所述M个第三终端装置的M个第二预留资源确定所述第一空闲资源。
在一种可能的设计中，所述第一终端装置确定第一空闲资源包括：
所述第一终端装置确定参考信号接收功率小于第一阈值的资源为所述第一空闲资源。
在一种可能的设计中，所述第一终端装置确定第一空闲资源包括：
所述第一终端装置接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
所述第一终端装置确定参考信号接收功率小于第一阈值的资源为第一子空闲资源；
所述第一终端装置确定所述第一空闲资源包括所述第一子空闲资源和所述M个第三终端装置的M个第二预留资源。
在一种可能的设计中，所述第一终端装置在第一时间接收来自所述N个第二终端装置的所述N个第二控制信息；
所述第一终端装置在第二时间接收来自所述N个第二终端装置的所述N个第四控制信息，第n个第四控制信息用于指示第n个第二终端装置的第三预留资源，所述第n个第二终端装置的第三预留资源用于指示所述第n个第二终端装置用于传输第四侧行信息的资源，所述第二时间晚于所述第一时间；
所述第一终端装置确定所述第一资源与第三资源不包含相同的资源，所述第三资源包括所述N个第二终端装置的N个第三预留资源；
所述第一终端装置以所述第一功率发送所述第一侧行信息。
在一种可能的设计中，所述第一终端装置以所述第一功率发送所述第一侧行信息包括：
所述第一终端装置将发送所述第一侧行信息的功率从所述第二功率恢复为所述第一功率，并以所述第一功率发送所述第一侧行信息。
在一种可能的设计中，所述第一终端装置向所述N个第二终端装置和/或所述M个第三终端装置发送第一控制信息，所述第一控制信息用于指示所述第一资源。
在一种可能的设计中，所述第一终端装置的优先级低于所述N个第二终端装置的优先级包括：
所述第一终端装置的待传输业务的优先级低于所述N个第二终端装置的待传输业务的优先级。
在一种可能的设计中，所述第一资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第一侧行信息，所述重传资源用于第i次传输所述第一侧行信息，所述i为大于或等于2的整数。
在一种可能的设计中，所述第二功率与所述第一功率的差值为根据所述第一终端装置的优先级与所述N个第二终端装置的优先级中的最高优先级的差值确定的；或
所述第二功率与所述第一功率的差值为根据侧行链路的参考信号接收功率确定的。
第二方面，提供一种侧行信息的方法，第二终端装置接收来自Q个第一终端装置的Q个第一控制信息，所述Q为大于或等于1的整数，第q个第一控制信息用于指示第q个第一终端装置的第四预留资源，q大于或等于1且q小于或等于Q，所述第q个第一终端装置的第四预留资源用于指示所述第q个第一终端装置用于传输第一侧行信息的资源，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级；
所述第二终端装置确定第四资源，所述第四资源包括所述Q个第一终端装置的所述Q个第四预留资源中的资源，所述第四资源用于所述第二终端装置传输第二侧行信息；
所述第二终端装置以第三功率发送所述第二侧行信息，所述第三功率大于第四功率，所述第四功率为所述第二终端装置在第二空闲资源上发送所述第二侧行信息所采用的功率。
由此，第二终端装置采用比在空闲资源上传输侧行控制信息的第四功率高的第三功率来传输侧行信息，提高了第二终端装置传输侧行信息的成功率，提高了资源利用效率。
在一种可能的设计中，所述第二终端装置确定没有所述第二空闲资源，所述第二空闲资源为参考信号接收功率小于第一阈值的资源。
在一种可能的设计中，所述第二终端装置确定没有所述第二空闲资源包括：
所述第一终端装置确定没有参考信号接收功率小于第一阈值的资源。
在一种可能的设计中，所述第二终端装置在第三时间接收来自所述Q个第一终端装置的所述Q个第一控制信息；
所述第二终端装置在第四时间确定存在所述第二空闲资源；
所述第二终端装置以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
在一种可能的设计中，所述第二终端装置以所述第四功率在所述第二空闲资源上发送所述第二侧行信息包括：
所述第二终端装置将发送所述第二侧行信息的功率从所述第三功率恢复为所述第四功率，并以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
在一种可能的设计中，所述第二终端装置向所述Q个第一终端装置和/或所述M个第三终端装置发送第三控制信息，所述第三控制信息用于指示所述第四资源。
在一种可能的设计中，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级包括：
所述Q个第一终端装置的待传输业务的优先级低于所述第二终端装置的待传输业务的优先级。
在一种可能的设计中，所述第四资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第二侧行信息，所述重传资源用于第i次传输所述第二侧行信息，所述i为大于或等于2的整数。
在一种可能的设计中，所述第三功率与所述第四功率的差值为根据所述第二终端装置的优先级与所述Q个第一终端装置的优先级中的最高优先级的差值确定的；或
所述第三功率与所述第四功率的差值为根据侧行链路的参考信号接收功率确定的。
第三方面，提供一种第一终端装置，此装置包括：
处理模块，用于确定第一空闲资源；
所述处理模块，用于根据所述第一空闲资源确定第一资源，所述第一资源用于所述第一终端装置以第一功率发送第一侧行信息；
收发模块，用于接收来自N个第二终端装置的N个第二控制信息，所述N为大于或等于1的整数，第n个第二控制信息用于指示第n个第二终端装置的第一预留资源，n大于或等于1且n小于或等于N，所述第n个第二终端装置的第一预留资源用于指示所述第n个第二终端装置用于传输第二侧行信息的资源，所述第一终端装置的优先级低于所述N个第二终端装置的优先级；
所述处理模块，用于确定所述第一资源与第二资源包含相同的资源，所述第二资源包括所述N个第二终端装置的N个第一预留资源；
所述收发模块，用于以第二功率发送所述第一侧行信息，所述第二功率小于所述第一功率。
由此，第一终端装置采用比在空闲资源上传输侧行控制信息的第一功率低的第二功率来传输侧行信息，降低了第一终端装置传输侧行信息的功率对第二终端装置的干扰，提高了资源利用效率。
在一种可能的设计中，所述第一功率为所述第一资源与所述第二资源不包含相同的资源时，所述收发模块发送所述第一侧行信息所采用的功率。
在一种可能的设计中，所述收发模块，用于接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
所述处理模块，用于根据所述M个第三终端装置的M个第二预留资源确定所述第一空闲资源。
在一种可能的设计中，所述处理模块，用于确定第一空闲资源包括：
所述处理模块，用于确定参考信号接收功率小于第一阈值的资源为所述第一空闲资源。
在一种可能的设计中，所述收发模块，用于接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
所述处理模块，用于确定参考信号接收功率小于第一阈值的资源为第一子空闲资源；
所述处理模块，用于确定所述第一空闲资源包括所述第一子空闲资源和所述M个第三终端装置的M个第二预留资源。
在一种可能的设计中，所述收发模块在第一时间接收来自所述N个第二终端装置的所述N个第二控制信息；
所述收发模块，还用于在第二时间接收来自所述N个第二终端装置的所述N个第四控制信息，第n个第四控制信息用于指示第n个第二终端装置的第三预留资源，所述第n个第二终端装置的第三预留资源用于指示所述第n个第二终端装置用于传输第四侧行信息的资源，所述第二时间晚于所述第一时间；
所述处理模块，用于确定所述第一资源与第三资源不包含相同的资源，所述第三资源包括所述N个第二终端装置的N个第三预留资源；
所述收发模块，还用于以所述第一功率发送所述第一侧行信息。
在一种可能的设计中，所述收发模块以所述第一功率发送所述第一侧行信息包括：
所述处理模块，用于将发送所述第一侧行信息的功率从所述第二功率恢复为所述第一功率；
所述收发模块，用于以所述第一功率发送所述第一侧行信息。
在一种可能的设计中，所述收发模块，还用于向所述N个第二终端装置和/或所述M个第三终端装置发送第一控制信息，所述第一控制信息用于指示所述第一资源。
在一种可能的设计中，所述第一终端装置的优先级低于所述N个第二终端装置的优先级包括：
所述第一终端装置的待传输业务的优先级低于所述N个第二终端装置的待传输业务的优先级。
在一种可能的设计中，所述第一资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第一侧行信息，所述重传资源用于第i次传输所述第一侧行信息，所述i为大于或等于2的整数。
在一种可能的设计中，所述第二功率与所述第一功率的差值为根据所述第一终端装置的优先级与所述N个第二终端装置的优先级中的最高优先级的差值确定的；或
所述第二功率与所述第一功率的差值为根据侧行链路的参考信号接收功率确定的。
第四方面，提供一种第二终端装置，此装置包括：
收发模块，用于接收来自Q个第一终端装置的Q个第一控制信息，所述Q为大于或等于1的整数，第q个第一控制信息用于指示第q个第一终端装置的第四预留资源，q大于或等于1且q小于或等于Q，所述第q个第一终端装置的第四预留资源用于指示所述第q个第一终端装置用于传输第一侧行信息的资源，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级；
处理模块，用于确定第四资源，所述第四资源包括所述Q个第一终端装置的所述Q个第四预留资源中的资源，所述第四资源用于所述第二终端装置传输第二侧行信息；
收发模块，还用于以第三功率发送所述第二侧行信息，所述第三功率大于第四功率，所述第四功率为所述第二终端装置在第二空闲资源上发送所述第二侧行信息所采用的功率。
由此，第二终端装置采用比在空闲资源上传输侧行控制信息的第四功率高的第三功率来传输侧行信息，提高了第二终端装置传输侧行信息的成功率，提高了资源利用效率。
在一种可能的设计中，所述处理模块，还用于确定没有所述第二空闲资源，所述第二空闲资源为参考信号接收功率小于第一阈值的资源。
在一种可能的设计中，所述处理模块，用于确定没有所述第二空闲资源包括：
所述处理模块，用于确定没有参考信号接收功率小于第一阈值的资源。
在一种可能的设计中，所述收发模块，用于在第三时间接收来自所述Q个第一终端装置的所述Q个第一控制信息；
所述处理模块，用于在第四时间确定存在所述第二空闲资源；
所述收发模块，用于以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
在一种可能的设计中，所述收发模块，用于以所述第四功率在所述第二空闲资源上发送所述第二侧行信息包括：
所述处理模块，用于将发送所述第二侧行信息的功率从所述第三功率恢复为所述第四功率；
所述收发模块，用于以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
在一种可能的设计中，所述收发模块，还用于向所述Q个第一终端装置和/或所述M个第三终端装置发送第三控制信息，所述第三控制信息用于指示所述第四资源。
在一种可能的设计中，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级包括：
所述Q个第一终端装置的待传输业务的优先级低于所述第二终端装置的待传输业务的优先级。
在一种可能的设计中，所述第四资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第二侧行信息，所述重传资源用于第i次传输所述第二侧行信息，所述i为大于或等于2的整数。
在一种可能的设计中，所述第三功率与所述第四功率的差值为根据所述第二终端装置的优先级与所述Q个第一终端装置的优先级中的最高优先级的差值确定的；或
所述第三功率与所述第四功率的差值为根据侧行链路的参考信号接收功率确定的。
结合上述第一至第四方面，在一种可能的设计中，所述第一、第二、第三、第四控制信息既可以携带在物理层控制信道中，也可以通过数据信道的解调参考信号隐式携带。
结合上述第一至第四方面，在一种可能的设计中，第n个第四控制信息也可以用于指示第n个第二终端装置的第一预留资源的使用状况，所述第n个第二终端装置的第一预留资源使用状况包括指示未继续使用第一预留资源。
第五方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1～9或10～18中任意一项所述的方法。
第六方面，提供一种通信装置，所述通信装置包括：
存储器，用于存储指令；
至少一个处理器，用于从所述存储器中调用并运行所述指令，使得所述通信装置实现如权利要求1～9或10～18中任意一项所述的方法。
第七方面，提供一种通信装置。该通信装置可以为上述方法设计中的第一通信装置。示例性地，所述第一通信装置为设置在通信设备中的芯片。示例性地，所述第一通信装置为终端装置。示例性地，所述通信设备为终端设备。该通信装置包括：通信接口，用于进行信息的收发，或者说，用于与其他装置进行通信；以及处理器，处理器与通信接口耦合。可选的，该通信装置还可以包括存储器，用于存储计算机可执行程序代码。或者，该通信装置也可以不包括存储器，存储器可以位于该通信装置外部。其中，存储器 所存储的程序代码包括指令，当处理器执行所述指令时，使该通信装置执行上述第一方面或任意一种可能的实施方式中的方法。
其中，如果第一通信装置为通信设备，所述通信接口，该通信接口可以是第一通信装置中的收发器，例如通过所述通信装置中的天线、馈线和编解码器等实现。或者，如果第一通信装置为设置在通信设备中的芯片，则所述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。
第八方面，提供一种通信装置。该通信装置可以为上述方法设计中的第二通信装置。示例性地，所述第二通信装置为设置在通信设备中的芯片。示例性地，所述第二通信装置为终端装置。示例性地，所述通信设备为终端设备。该通信装置包括：通信接口，用于进行信息的收发，或者说，用于与其他装置进行通信；以及处理器，处理器与通信接口耦合。可选的，该通信装置还可以包括存储器，用于存储计算机可执行程序代码。或者，该通信装置也可以不包括存储器，存储器可以位于该通信装置外部。其中，存储器所存储的程序代码包括指令，当处理器执行所述指令时，使该通信装置执行上述第二方面或任意一种可能的实施方式中的方法。
其中，如果第二通信装置为通信设备，所述通信接口，该通信接口可以是第一通信装置中的收发器，例如通过所述通信装置中的天线、馈线和编解码器等实现。或者，如果第二通信装置为设置在通信设备中的芯片，则所述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。
第九方面，提供一种通信系统，该通信系统包括第三方面所述的通信装置、第五方面所述的通信装置或第七方面所述的通信装置；和/或，该通信系统包括第四方面所述的通信装置、第六方面所述的通信装置或第八方面所述的通信装置。
第十方面，提供一种计算机存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第一方面或第一方面的任意一种可能的实施方式中所述的方法。
第十一方面，提供一种计算机存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第二方面或第二方面的任意一种可能的实施方式中所述的方法。
第十二方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第一方面或第一方面的任意一种可能的实施方式中所述的方法。
第十三方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第二方面或第二方面的任意一种可能的实施方式中所述的方法。
本申请实施例提供的方案，为终端装置向多个接收端发送侧行信号的场景提供了功率控制的解决方案，通过功率控制的方式，提高了侧行信号的发送成功率。
附图说明
图1为本申请实施例的一种应用场景示意图；
图2为本申请实施例的一种侧行信息的传输方法流程图；
图3为本申请图2实施例中第一终端装置或第二终端装置的结构示意图；
图4为本申请实施例的另一种侧行信息的传输方法流程图；
图5为本申请图4实施例中第一终端装置或第二终端装置的结构示意图；
图6为本申请实施例的一种侧行信息的传输方法流程图；
图7为本申请实施例的另一种侧行信息的传输方法流程图。
具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)终端装置，包括向用户提供语音和/或数据连通性的设备，具体的，包括向用户提供语音的设备，或包括向用户提供数据连通性的设备，或包括向用户提供语音和数据连通性的设备。例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端装置可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音或数据，或与RAN交互语音和数据。该终端装置可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、车到一切(vehicle to everything，V2X)终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端装置还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
而如上介绍的各种终端装置，如果位于车辆上(例如放置在车辆内或安装在车辆内)， 都可以认为是车载终端装置，车载终端装置例如也称为车载单元(on-board unit，OBU)。本申请实施例的终端装置还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。
本申请实施例中，终端装置还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端装置。
终端装置，可以是终端设备，或者也可以是用于实现终端装置的功能的模块，该模块可以设置在终端装置中，或者也可以与终端装置彼此独立设置，该模块例如为芯片系统等。
2)网络设备，例如包括接入网(access network，AN)设备，例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备，或者例如，一种车到一切(vehicle-to-everything，V2X)技术中的网络设备为路侧单元(road side unit，RSU)。基站可用于将收到的空中帧与IP分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。RSU可以是支持V2X应用的固定基础设施实体，可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如，网络设备可以包括长期演进(long term evolution，LTE)系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(the 5 th generation，5G)新空口(new radio，NR)系统(也简称为NR系统)中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。
当然网络设备还可以包括核心网设备，但因为本申请实施例提供的技术方案主要涉及的是接入网设备，因此在后文中，如无特殊说明，则所描述的“核心网设备”是指核心网设备，而所描述的“网络设备”或“接入网设备”均是指接入网设备。
3)V2X就是车与外界进行互联互通，这是未来智能汽车、自动驾驶、智能交通运输系统的基础和关键技术。V2X将在已有的设备到设备(device-to-device，D2D)技术的基础上对V2X的具体应用需求进行优化，需要进一步减少V2X设备的接入时延，解决资源冲突问题。
V2X具体又包括车与车(vehicle-to-vehicle，V2V)、车与路侧基础设施(vehicle-to-infrastructure，V2I)、车与行人(vehicle-to-pedestrian，V2P)的直接通信，以及车与网络(vehicle-to-network，V2N)的通信交互等几种应用需求。如图1所示。V2V指的是车辆间的通信；V2P指的是车辆与人(包括行人、骑自行车的人、司机、或乘客)的通信；V2I指的是车辆与网络设备的通信，网络设备例如RSU，另外还有一种V2N可以包括在V2I中，V2N指的是车辆与基站/网络的通信。
其中，V2P可以用做给道路上行人或非机动车安全警告。通过V2I，车辆可以与道路甚至其他基础设施，例如交通灯、路障等，进行通信，获取交通灯信号时序等道路管理信息。V2V可以用做车辆间信息交互和提醒，最典型的应用是用于车辆间防碰撞安全系统。V2N是目前应用最为广泛的车联网形式，其主要功能是使车辆通过移动网络，连接到云服务器，使用云服务器提供的导航、娱乐、或防盗等应用功能。
在V2X中，主要是终端设备和终端设备之间的通信。对于终端设备和终端设备之间的传输模式，当前标准协议支持的有广播方式，组播方式，和单播方式。
广播方式：广播方式是指作为发送端的终端设备采用广播的模式进行数据发送，多个终端设备端均能接收来自发送端的侧行链路控制信息(sidelink control information，SCI)或侧行链路共享信道(sidelink shared channel，SSCH)。
在侧行链路中，保证所有的终端设备都解析来自发送端的控制信息的方式是，发送端不对控制信息不加扰，或者发送端使用所有的终端设备都已知的扰码对控制信息加扰。
组播方式：组播方式和广播发送相似，作为发送端的终端设备采用广播的模式进行数据发送，一组终端设备均能解析SCI或SSCH。
单播方式：单播方式是一个终端设备向另外一个终端设备发送数据，其它终端设备不需要或者不能够解析该数据。
4)侧行链路(sidelink)，是指终端设备和终端设备之间的链路。上行链路，是指终端设备和网络设备之间的链路。
侧行信息包括侧行控制信息(sidelink control information，SCI)和/或侧行数据。
5)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，本申请实施例提及“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，第一功率控制因子和第二功率控制因子，只是为了区分不同的功率控制因子，而并不一定是表示这两种功率控制因子的内容、优先级或者重要程度等的不同。
如上介绍了本申请实施例涉及的一些概念，下面介绍本申请实施例的技术特征。
本申请实施例提供的技术方案可以应用于LTE系统，或NR系统，或下一代移动通信系统或其他类似的通信系统。或者，本申请实施例提供的技术方案可以应用于V2X场景，例如LTE-V2X或NR-V2X，或者其他的V2X场景。
图2为本申请实施例提供的一种侧行信息的传输方法。图3为图2中涉及的第一终端装置或第二终端装置的结构示意图。
图2所示侧行信息的传输方法包括：
步骤21，第一终端装置确定第一空闲资源。
步骤22，所述第一终端装置根据所述第一空闲资源确定第一资源，所述第一资源用于所述第一终端装置以第一功率发送第一侧行信息。空闲资源为没有其它终端装置占用或预留的资源或测得的参考信号接收功率RSRP值小于第一阈值的资源，第一阈值的大小可以为协议预定义的，也可以由网络装置配置。
步骤23，所述第一终端装置接收来自N个第二终端装置的N个第二控制信息，所述N为大于或等于1的整数，第n个第二控制信息用于指示第n个第二终端装置的第一预留资源，n大于或等于1且n小于或等于N，所述第n个第二终端装置的第一预留资源用 于指示所述第n个第二终端装置用于传输第二侧行信息的资源，所述第一终端装置的优先级低于所述N个第二终端装置的优先级。可选的，N为1个，即只有一个第二终端装置。本申请的控制信息除用于指示预留资源，还可以包含其它内容。
步骤24，所述第一终端装置确定所述第一资源与第二资源包含相同的资源，所述第二资源包括所述N个第二终端装置的N个第一预留资源。相同的资源可以为部分相同的资源，也可以为全部相同的资源，如第一资源与第二资源只有部分资源相同即可以叫做包含相同的资源，或第一资源与第二资源完全相同也可以叫做包含相同的资源。
步骤25，所述第一终端装置以第二功率发送所述第一侧行信息，所述第二功率小于所述第一功率。第一功率为第一终端装置以现有的侧行信息的传输功率公式计算出的功率。可选的，所述第一终端装置在第一资源以第二功率发送所述第一侧行信息。
由此，第一终端装置采用比在空闲资源上传输侧行控制信息的第一功率低的第二功率来传输侧行信息，降低了第一终端装置传输侧行信息的功率对第二终端装置的干扰，提高了资源利用效率，降低系统处理的复杂度。同时，保证第一终端装置在原有第一资源上传输数据，提升第一终端传输鲁棒性。
可选的，所述第一功率为所述第一资源与所述第二资源不包含相同的资源时，所述第一终端装置发送所述第一侧行信息所采用的功率。
可选的，所述第一终端装置确定第一空闲资源包括：所述第一终端装置接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；所述第一终端装置根据所述M个第三终端装置的M个第二预留资源确定所述第一空闲资源。M个第三终端装置可以包含或不包含所述N个第二终端装置，也可以包含其它的终端装置。第一终端装置会排除第二预留资源之外的资源作为第一空闲资源。
可选的，所述第一终端装置确定参考信号接收功率小于第一阈值的资源为所述第一空闲资源。
可选的，所述第一终端装置接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
所述第一终端装置确定参考信号接收功率小于第一阈值的资源为第一子空闲资源；
所述第一终端装置确定所述第一空闲资源包括所述第一子空闲资源和所述M个第三终端装置的M个第二预留资源。
可选的，所述第一终端装置在第一时间接收来自所述N个第二终端装置的所述N个第二控制信息；所述第一终端装置在第二时间接收来自所述N个第二终端装置的所述N个第四控制信息，第n个第四控制信息用于指示第n个第二终端装置的第三预留资源，所述第n个第二终端装置的第三预留资源用于指示所述第n个第二终端装置用于传输第四侧行信息的资源，所述第二时间晚于所述第一时间；所述第一终端装置确定所述第一资源与第三资源不包含相同的资源，所述第三资源包括所述N个第二终端装置的N个第三预留资源；所述第一终端装置以所述第一功率发送所述第一侧行信息。
可选的，所述第一终端装置以所述第一功率发送所述第一侧行信息包括：所述第一终端装置将发送所述第一侧行信息的功率从所述第二功率恢复为所述第一功率，并以所述第一功率发送所述第一侧行信息。
可选的，所述第一终端装置向所述N个第二终端装置和/或所述M个第三终端装置发送第一控制信息，所述第一控制信息用于指示所述第一资源。
可选的，所述第一终端装置的优先级低于所述N个第二终端装置的优先级包括：所述第一终端装置的待传输业务的优先级低于所述N个第二终端装置的待传输业务的优先级。
可选的，所述第一资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第一侧行信息，所述重传资源用于第i次传输所述第一侧行信息，所述i为大于或等于2的整数。
可选的，所述第二功率与所述第一功率的差值为根据所述第一终端装置的优先级与所述N个第二终端装置的优先级中的最高优先级的差值确定的；或所述第二功率与所述第一功率的差值为根据侧行链路的参考信号接收功率确定的。
可选的，可以预先定义多种第二功率和第一功率差值，具体的差值可以通过查表获取。
可选的，所述第一、第二、第三、第四控制信息既可以携带在物理层控制信道中，也可以通过数据信道的解调参考信号隐式携带。
可选的，第n个第四控制信息也可以用于指示第n个第二终端装置的第一预留资源的使用状况，所述第n个第二终端装置的第一预留资源使用状况包括指示未继续使用第一预留资源。
图2所示实施例的具体流程图也可以参考图6的流程图。
图3为第一终端装置或第二终端装置的结构图，第一终端装置或第二终端装置包括收发模块和处理模块。
示例性地，第一终端装置或第二终端装置可以是终端设备，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。当第一终端装置是终端设备时，收发模块可以是收发器，可以包括天线和射频电路等，处理模块可以是处理器，例如基带处理器，基带处理器中可以包括一个或多个CPU。当第一终端装置是具有上述终端功能的部件时，收发模块可以是射频单元，处理模块可以是处理器，例如基带处理器。当第一终端装置是芯片系统时，收发模块可以是芯片系统(例如基带芯片)的输入输出接口、处理模块可以是芯片系统的处理器，可以包括一个或多个中央处理单元。
其中，处理模块可以用于执行图2所示的实施例中由第一终端装置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。收发模块可以用于执行图2所示的实施例中由终端装置所执行的全部收发操作，和/或用于支持本文所描述的技术的其它过程。
另外，收发模块可以由收发器代替，当其接收信号时可以由接收模块或接收器代替，当其发送信号时可以由发送模块或发射器代替，处理模块可以由一个或多个处理器代替。
图4为本申请实施例提供的一种侧行信息的传输方法。图5为图4中涉及的第一终端装置或第二终端装置的结构示意图。
图4所示侧行信息的传输方法包括：
步骤41，第二终端装置接收来自Q个第一终端装置的Q个第一控制信息，所述Q为大于或等于1的整数，第q个第一控制信息用于指示第q个第一终端装置的第四预留资源，q大于或等于1且q小于或等于Q，所述第q个第一终端装置的第四预留资源用于指示所述第q个第一终端装置用于传输第一侧行信息的资源，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级。第一控制信息除用于指示第一终端装置的第四预留资源，还可以包含或指示其它的信息。可选的，Q取值为1，及只有一个第一终端装置。
步骤42，所述第二终端装置确定第四资源，所述第四资源包括所述Q个第一终端装置的所述Q个第四预留资源中的资源，所述第四资源用于所述第二终端装置传输第二侧行信息。第四资源为第二终端装置抢占第一终端装置的资源。
步骤43，所述第二终端装置以第三功率发送所述第二侧行信息，所述第三功率大于第四功率，所述第四功率为所述第二终端装置在第二空闲资源上发送所述第二侧行信息所采用的功率。为了提高侧行信息的传输可靠性，因为第二终端装置具有更高的优先级，因此可以提高发送侧行信息的发送功率。
由此，第二终端装置采用比在空闲资源上传输侧行控制信息的第四功率高的第三功率来传输侧行信息，提高了第二终端装置传输侧行信息的成功率，提高了资源利用效率。同时可以保证第一终端装置传输可靠性。
可选的，所述第二终端装置确定没有所述第二空闲资源，所述第二空闲资源为参考信号接收功率小于第一阈值的资源。
可选的，所述第二终端装置确定没有所述第二空闲资源包括：所述第一终端装置确定没有参考信号接收功率小于第一阈值的资源。
可选的，所述第二终端装置在第三时间接收来自所述Q个第一终端装置的所述Q个第一控制信息；所述第二终端装置在第四时间确定存在所述第二空闲资源；所述第二终端装置以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
可选的，所述第二终端装置以所述第四功率在所述第二空闲资源上发送所述第二侧行信息包括：所述第二终端装置将发送所述第二侧行信息的功率从所述第三功率恢复为所述第四功率，并以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
可选的，所述第二终端装置向所述Q个第一终端装置和/或所述M个第三终端装置发送第三控制信息，所述第三控制信息用于指示所述第四资源。
可选的，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级包括：所述Q个第一终端装置的待传输业务的优先级低于所述第二终端装置的待传输业务的优先级。
可选的，所述第四资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第二侧行信息，所述重传资源用于第i次传输所述第二侧行信息，所述i为大于或等于2的整数。
可选的，所述第三功率与所述第四功率的差值为根据所述第二终端装置的优先级与所述Q个第一终端装置的优先级中的最高优先级的差值确定的；或所述第三功率与所述第四功率的差值为根据侧行链路的参考信号接收功率确定的。
可选的，可以预先定义多种第三功率和第四功率差值，具体的差值可以通过查表获取。
可选的，所述第一、第二、第三、第四控制信息既可以携带在物理层控制信道中，也可以通过数据信道的解调参考信号隐式携带。
可选的，第n个第四控制信息也可以用于指示第n个第二终端装置的第一预留资源的使用状况，所述第n个第二终端装置的第一预留资源使用状况包括指示未继续使用第一预留资源。
可选的，对图2实施例的限定适用于图4实施例，不再赘述。
图4所示实施例的具体流程图也可以参考图7的流程图。
图5为第一终端装置或第二终端装置的结构图，第一终端装置或第二终端装置包括收发模块和处理模块。
示例性地，第一终端装置或第二终端装置可以是终端设备，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。当第一终端装置是终端设备时，收发模块可以是收发器，可以包括天线和射频电路等，处理模块可以是处理器，例如基带处理器，基带处理器中可以包括一个或多个CPU。当第一终端装置是具有上述终端功能的部件时，收发模块可以是射频单元，处理模块可以是处理器，例如基带处理器。当第一终端装置是芯片系统时，收发模块可以是芯片系统(例如基带芯片)的输入输出接口、处理模块可以是芯片系统的处理器，可以包括一个或多个中央处理单元。
其中，处理模块可以用于执行图4所示的实施例中由第一终端装置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。收发模块可以用于执行图4所示的实施例中由终端装置所执行的全部收发操作，和/或用于支持本文所描述的技术的其它过程。
另外，收发模块可以由收发器代替，当其接收信号时可以由接收模块或接收器代替，当其发送信号时可以由发送模块或发射器代替，处理模块可以由一个或多个处理器代替。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图2所示的实施例中与终端装置相关的流程。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图4所示的实施例中与终端装置相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图2所示的实施例中与终端装置相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图4所示的实施例中与终端装置相关的流程。
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。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该 计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
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 (41)

  1. 一种侧行信息的传输方法，其特征在于，包括：
    第一终端装置确定第一空闲资源；
    所述第一终端装置根据所述第一空闲资源确定第一资源，所述第一资源用于所述第一终端装置以第一功率发送第一侧行信息；
    所述第一终端装置接收来自N个第二终端装置的N个第二控制信息，所述N为大于或等于1的整数，第n个第二控制信息用于指示第n个第二终端装置的第一预留资源，n大于或等于1且n小于或等于N，所述第n个第二终端装置的第一预留资源用于指示所述第n个第二终端装置用于传输第二侧行信息的资源，所述第一终端装置的优先级低于所述N个第二终端装置的优先级；
    所述第一终端装置确定所述第一资源与第二资源包含相同的资源，所述第二资源包括所述N个第二终端装置的N个第一预留资源；
    所述第一终端装置以第二功率发送所述第一侧行信息，所述第二功率小于所述第一功率。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第一功率为所述第一资源与所述第二资源不包含相同的资源时，所述第一终端装置发送所述第一侧行信息所采用的功率。
  3. 根据权利要求1-2任意一项所述的方法，其特征在于，
    所述第一终端装置确定第一空闲资源包括：
    所述第一终端装置接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
    所述第一终端装置根据所述M个第三终端装置的M个第二预留资源确定所述第一空闲资源；或
    所述第一终端装置确定第一空闲资源包括：
    所述第一终端装置确定参考信号接收功率小于第一阈值的资源为所述第一空闲资源；或
    所述第一终端装置确定第一空闲资源包括：
    所述第一终端装置接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
    所述第一终端装置确定参考信号接收功率小于第一阈值的资源为第一子空闲资源；
    所述第一终端装置确定所述第一空闲资源包括所述第一子空闲资源和所述M个第三终端装置的M个第二预留资源。
  4. 根据权利要求1-3任意一项所述的方法，其特征在于，
    所述第一终端装置在第一时间接收来自所述N个第二终端装置的所述N个第二控制信息；
    所述第一终端装置在第二时间接收来自所述N个第二终端装置的所述N个第四控制信息，第n个第四控制信息用于指示第n个第二终端装置的第三预留资源，所述第n个第二终端装置的第三预留资源用于指示所述第n个第二终端装置用于传输第四侧行信息的资源，所述第二时间晚于所述第一时间；
    所述第一终端装置确定所述第一资源与第三资源不包含相同的资源，所述第三资源包括所述N个第二终端装置的N个第三预留资源；
    所述第一终端装置以所述第一功率发送所述第一侧行信息。
  5. 根据权利要求4所述的方法，其特征在于，
    所述第一终端装置以所述第一功率发送所述第一侧行信息包括：
    所述第一终端装置将发送所述第一侧行信息的功率从所述第二功率恢复为所述第一功率，并以所述第一功率发送所述第一侧行信息。
  6. 根据权利要求1-5任意一项所述的方法，其特征在于，
    所述第一终端装置向所述N个第二终端装置和/或所述M个第三终端装置发送第一控制信息，所述第一控制信息用于指示所述第一资源。
  7. 根据权利要求1-6任意一项所述的方法，其特征在于，
    所述第一终端装置的优先级低于所述N个第二终端装置的优先级包括：
    所述第一终端装置的待传输业务的优先级低于所述N个第二终端装置的待传输业务的优先级。
  8. 根据权利要求1-7任意一项所述的方法，其特征在于，
    所述第一资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第一侧行信息，所述重传资源用于第i次传输所述第一侧行信息，所述i为大于或等于2的整数。
  9. 根据权利要求1-8任意一项所述的方法，其特征在于，
    所述第二功率与所述第一功率的差值为根据所述第一终端装置的优先级与所述N个第二终端装置的优先级中的最高优先级的差值确定的；或
    所述第二功率与所述第一功率的差值为根据侧行链路的参考信号接收功率确定的。
  10. 一种侧行信息的方法，其特征在于，包括：
    第二终端装置接收来自Q个第一终端装置的Q个第一控制信息，所述Q为大于或等于1的整数，第q个第一控制信息用于指示第q个第一终端装置的第四预留资源，q大于或等于1且q小于或等于Q，所述第q个第一终端装置的第四预留资源用于指示所述第q个第一终端装置用于传输第一侧行信息的资源，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级；
    所述第二终端装置确定第四资源，所述第四资源包括所述Q个第一终端装置的所述Q个第四预留资源中的资源，所述第四资源用于所述第二终端装置传输第二侧行信息；
    所述第二终端装置以第三功率发送所述第二侧行信息，所述第三功率大于第四功率，所述第四功率为所述第二终端装置在第二空闲资源上发送所述第二侧行信息所采用的功率。
  11. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    所述第二终端装置确定没有所述第二空闲资源，所述第二空闲资源为参考信号接收功率小于第一阈值的资源。
  12. 根据权利要求10-11任意一项所述的方法，其特征在于，
    所述第二终端装置确定没有所述第二空闲资源包括：
    所述第一终端装置确定没有参考信号接收功率小于第一阈值的资源。
  13. 根据权利要求10-12任意一项所述的方法，其特征在于，
    所述第二终端装置在第三时间接收来自所述Q个第一终端装置的所述Q个第一控制信息；
    所述第二终端装置在第四时间确定存在所述第二空闲资源；
    所述第二终端装置以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
  14. 根据权利要求13所述的方法，其特征在于，
    所述第二终端装置以所述第四功率在所述第二空闲资源上发送所述第二侧行信息包括：
    所述第二终端装置将发送所述第二侧行信息的功率从所述第三功率恢复为所述第四功率，并以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
  15. 根据权利要求10-14任意一项所述的方法，其特征在于，
    所述第二终端装置向所述Q个第一终端装置和/或所述M个第三终端装置发送第三控制信息，所述第三控制信息用于指示所述第四资源。
  16. 根据权利要求10-15任意一项所述的方法，其特征在于，
    所述Q个第一终端装置的优先级低于所述第二终端装置的优先级包括：
    所述Q个第一终端装置的待传输业务的优先级低于所述第二终端装置的待传输业务的优先级。
  17. 根据权利要求10-16任意一项所述的方法，其特征在于，
    所述第四资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第二侧行信息，所述重传资源用于第i次传输所述第二侧行信息，所述i为大于或等于2的整数。
  18. 根据权利要求10-17任意一项所述的方法，其特征在于，
    所述第三功率与所述第四功率的差值为根据所述第二终端装置的优先级与所述Q个第一终端装置的优先级中的最高优先级的差值确定的；或
    所述第三功率与所述第四功率的差值为根据侧行链路的参考信号接收功率确定的。
  19. 一种第一终端装置，其特征在于，包括：
    处理模块，用于确定第一空闲资源；
    所述处理模块，用于根据所述第一空闲资源确定第一资源，所述第一资源用于所述第一终端装置以第一功率发送第一侧行信息；
    收发模块，用于接收来自N个第二终端装置的N个第二控制信息，所述N为大于或等于1的整数，第n个第二控制信息用于指示第n个第二终端装置的第一预留资源，n大于或等于1且n小于或等于N，所述第n个第二终端装置的第一预留资源用于指示所述第n个第二终端装置用于传输第二侧行信息的资源，所述第一终端装置的优先级低于所述N个第二终端装置的优先级；
    所述处理模块，用于确定所述第一资源与第二资源包含相同的资源，所述第二资源包括所述N个第二终端装置的N个第一预留资源；
    所述收发模块，用于以第二功率发送所述第一侧行信息，所述第二功率小于所述第 一功率。
  20. 根据权利要求19所述的终端装置，其特征在于，
    所述第一功率为所述第一资源与所述第二资源不包含相同的资源时，所述收发模块发送所述第一侧行信息所采用的功率。
  21. 根据权利要求19-20任意一项所述的终端装置，其特征在于，
    所述收发模块，用于接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
    所述处理模块，用于根据所述M个第三终端装置的M个第二预留资源确定所述第一空闲资源；
    或
    所述处理模块，用于确定第一空闲资源包括：
    所述处理模块，用于确定参考信号接收功率小于第一阈值的资源为所述第一空闲资源；或
    所述收发模块，用于接收来自M个第三终端装置的M个第三控制信息，所述M为大于1的整数，第m个第三控制信息用于指示第m个第三终端装置的第二预留资源，m大于或等于1且m小于或等于M，所述第m个第三终端装置的第二预留资源用于指示所述第m个第三终端装置用于传输第三侧行信息的资源；
    所述处理模块，用于确定参考信号接收功率小于第一阈值的资源为第一子空闲资源；
    所述处理模块，用于确定所述第一空闲资源包括所述第一子空闲资源和所述M个第三终端装置的M个第二预留资源。
  22. 根据权利要求19-21任意一项所述的终端装置，其特征在于，
    所述收发模块在第一时间接收来自所述N个第二终端装置的所述N个第二控制信息；
    所述收发模块，还用于在第二时间接收来自所述N个第二终端装置的所述N个第四控制信息，第n个第四控制信息用于指示第n个第二终端装置的第三预留资源，所述第n个第二终端装置的第三预留资源用于指示所述第n个第二终端装置用于传输第四侧行信息的资源，所述第二时间晚于所述第一时间；
    所述处理模块，用于确定所述第一资源与第三资源不包含相同的资源，所述第三资源包括所述N个第二终端装置的N个第三预留资源；
    所述收发模块，还用于以所述第一功率发送所述第一侧行信息。
  23. 根据权利要求22所述的终端装置，其特征在于，
    所述收发模块以所述第一功率发送所述第一侧行信息包括：
    所述处理模块，用于将发送所述第一侧行信息的功率从所述第二功率恢复为所述第一功率；
    所述收发模块，用于以所述第一功率发送所述第一侧行信息。
  24. 根据权利要求19-23任意一项所述的终端装置，其特征在于，
    所述收发模块，还用于向所述N个第二终端装置和/或所述M个第三终端装置发送第一控制信息，所述第一控制信息用于指示所述第一资源。
  25. 根据权利要求19-24任意一项所述的终端装置，其特征在于，
    所述第一终端装置的优先级低于所述N个第二终端装置的优先级包括：
    所述第一终端装置的待传输业务的优先级低于所述N个第二终端装置的待传输业务的优先级。
  26. 根据权利要求19-25任意一项所述的终端装置，其特征在于，
    所述第一资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第一侧行信息，所述重传资源用于第i次传输所述第一侧行信息，所述i为大于或等于2的整数。
  27. 根据权利要求19-26任意一项所述的终端装置，其特征在于，
    所述第二功率与所述第一功率的差值为根据所述第一终端装置的优先级与所述N个第二终端装置的优先级中的最高优先级的差值确定的；或
    所述第二功率与所述第一功率的差值为根据侧行链路的参考信号接收功率确定的。
  28. 一种第二终端装置，其特征在于，包括：
    收发模块，用于接收来自Q个第一终端装置的Q个第一控制信息，所述Q为大于或等于1的整数，第q个第一控制信息用于指示第q个第一终端装置的第四预留资源，q大于或等于1且q小于或等于Q，所述第q个第一终端装置的第四预留资源用于指示所述第q个第一终端装置用于传输第一侧行信息的资源，所述Q个第一终端装置的优先级低于所述第二终端装置的优先级；
    处理模块，用于确定第四资源，所述第四资源包括所述Q个第一终端装置的所述Q个第四预留资源中的资源，所述第四资源用于所述第二终端装置传输第二侧行信息；
    收发模块，还用于以第三功率发送所述第二侧行信息，所述第三功率大于第四功率，所述第四功率为所述第二终端装置在第二空闲资源上发送所述第二侧行信息所采用的功率。
  29. 根据权利要求28所述的终端装置，其特征在于，
    所述处理模块，还用于确定没有所述第二空闲资源，所述第二空闲资源为参考信号接收功率小于第一阈值的资源。
  30. 根据权利要求28-29任意一项所述的终端装置，其特征在于，
    所述处理模块，用于确定没有所述第二空闲资源包括：
    所述处理模块，用于确定没有参考信号接收功率小于第一阈值的资源。
  31. 根据权利要求28-30任意一项所述的终端装置，其特征在于，
    所述收发模块，用于在第三时间接收来自所述Q个第一终端装置的所述Q个第一控制信息；
    所述处理模块，用于在第四时间确定存在所述第二空闲资源；
    所述收发模块，用于以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
  32. 根据权利要求31所述的终端装置，其特征在于，
    所述收发模块，用于以所述第四功率在所述第二空闲资源上发送所述第二侧行信息包括：
    所述处理模块，用于将发送所述第二侧行信息的功率从所述第三功率恢复为所述第四功率；
    所述收发模块，用于以所述第四功率在所述第二空闲资源上发送所述第二侧行信息。
  33. 根据权利要求28-32任意一项所述的终端装置，其特征在于，
    所述收发模块，还用于向所述Q个第一终端装置和/或所述M个第三终端装置发送第三控制信息，所述第三控制信息用于指示所述第四资源。
  34. 根据权利要求28-33任意一项所述的终端装置，其特征在于，
    所述Q个第一终端装置的优先级低于所述第二终端装置的优先级包括：
    所述Q个第一终端装置的待传输业务的优先级低于所述第二终端装置的待传输业务的优先级。
  35. 根据权利要求28-34任意一项所述的终端装置，其特征在于，
    所述第四资源包括初传资源和/或重传资源，所述初传资源用于首次传输所述第二侧行信息，所述重传资源用于第i次传输所述第二侧行信息，所述i为大于或等于2的整数。
  36. 根据权利要求28-35任意一项所述的终端装置，其特征在于，
    所述第三功率与所述第四功率的差值为根据所述第二终端装置的优先级与所述Q个第一终端装置的优先级中的最高优先级的差值确定的；或
    所述第三功率与所述第四功率的差值为根据侧行链路的参考信号接收功率确定的。
  37. 根据权利要求1-36任意一项所述的方法或装置，其特征在于，
    所述第一、第二、第三、第四控制信息既可以携带在物理层控制信道中，也可以通过数据信道的解调参考信号隐式携带。
  38. 根据权利要求4所述的方法或22所述的装置，其特征在于，
    第n个第四控制信息也可以用于指示第n个第二终端装置的第一预留资源的使用状况，所述第n个第二终端装置的第一预留资源使用状况包括指示未继续使用第一预留资源。
  39. 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用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1～9或10～18中任意一项所述的方法。
  40. 一种通信装置，其特征在于，所述通信装置包括：
    存储器，用于存储指令；
    至少一个处理器，用于从所述存储器中调用并运行所述指令，使得所述通信装置实现如权利要求1～9或10～18中任意一项所述的方法。
  41. 一种计算机程序产品，其特征在于，所述计算机程序产品用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1～9或10～18中任意一项所述的方法。
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