WO2022027689A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2022027689A1
WO2022027689A1 PCT/CN2020/108013 CN2020108013W WO2022027689A1 WO 2022027689 A1 WO2022027689 A1 WO 2022027689A1 CN 2020108013 W CN2020108013 W CN 2020108013W WO 2022027689 A1 WO2022027689 A1 WO 2022027689A1
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WIPO (PCT)
Prior art keywords
resource
priority
value
intersection
terminal device
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PCT/CN2020/108013
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English (en)
Chinese (zh)
Inventor
何畅
苏宏家
郭文婷
董蕾
卢磊
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华为技术有限公司
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Priority to PCT/CN2020/108013 priority Critical patent/WO2022027689A1/fr
Publication of WO2022027689A1 publication Critical patent/WO2022027689A1/fr

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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
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method and apparatus.
  • the sensing terminal equipment can receive the sideline information transmitted by other nearby terminal equipment, so as to know the resources used by the nearby terminal equipment according to the received sideline information, such as monitoring the sideline control information sent by the surrounding terminal equipment, through the sideline
  • the control information learns the resources occupied by the terminal device, and can try to avoid performing sidelink (SL) transmission on the resources that are perceived to have data transmission, so as to reduce the interference during SL transmission.
  • one of the purposes of perception is to know the occupancy of transmission resources by other surrounding terminal devices, so as to reasonably select candidate resources, and perform SL data transmission through the transmission resources included in the candidate resources.
  • the manner in which a terminal device performing SL data transmission determines the transmission resource needs to be optimized, so as to further improve the rationality of the transmission resource selected by the terminal device.
  • the present application provides a communication method to improve the rationality of SL transmission resources selected by a terminal device.
  • an embodiment of the present application provides a communication method, and the method can be executed by a terminal device or a component in the terminal device (such as a processor, a communication chip, or a chip system, etc.).
  • the first terminal device may receive resource indication information for indicating the first resource and the first priority from the second terminal device.
  • the first resource is determined according to the first priority.
  • the first terminal device determines the second resource according to a second priority, where the second priority is the priority of the data to be sent by the first terminal device.
  • the first terminal device may send the to-be-sent data on a transmission resource, where the transmission resource is determined according to the first priority, the second priority, the first resource, and the second resource.
  • the second terminal device may be a terminal device that receives the data to be sent, or a terminal device near the terminal device that receives the data to be sent.
  • the first terminal device can determine the transmission resource according to the first resource perceived by the second terminal device and the first priority corresponding to the first resource, combined with the second resource perceived by itself and the second priority of the data to be sent, The first resource is determined according to the first priority, and the second resource is determined according to the second priority.
  • the first terminal device when determining the transmission resource, the first terminal device simultaneously considers the resource (the second resource) obtained through its own perception or monitoring, and the resource (the first resource) indicated by other terminal devices through the resource indication information.
  • the resource indication information also includes the first priority corresponding to the first resource
  • the first terminal device also considers the priorities (first priority and second priority) corresponding to the first resource and the second resource respectively when selecting the transmission resource. , which can further improve the rationality of the transmission resource selection, and reduce the interference when the data to be sent is sent through the transmission resource.
  • the first priority corresponding to the first resource described in the embodiments of this application and the first resource are determined according to the first priority, which may specifically indicate that the first resource is based on a reference signal corresponding to the first priority Received power (reference signal received power, RSRP) threshold for sensing (sensing).
  • the first priority may be a priority specially used for determining auxiliary resources, and may be configured or predefined by the base station.
  • the RSRP threshold corresponding to the first priority is used to select resources.
  • the first priority may also be the priority of the data to be sent or the data that has been sent currently by the second terminal device.
  • the first terminal device determines the second resource according to the second priority.
  • the first terminal device may obtain the second resource by sensing based on the RSRP threshold corresponding to the second priority.
  • the candidate resource (second resource) of the data to be sent is based on the priority corresponding to the data to be sent.
  • the process or method for the first terminal device and the second terminal device to select resources through perception may be the same.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource may include The intersection and the fourth resource, wherein the fourth resource belongs to the remaining resources in the third resource except the intersection.
  • the transmission resource may include the third resource and A fifth resource, wherein the fifth resource belongs to the remaining resources in the second resource except the intersection.
  • the above third resource is equal to the first resource, or, the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the resource A described in the embodiment of the present application belongs to the resource B, which means that the resource A is equal to the resource B, or that the resource A is a part of the resource in the resource B.
  • This design is adopted, because when the value of the first priority is greater than or equal to the value of the second priority, the remaining resources in the second resource other than the above-mentioned intersection are likely to be inconsistent with the data to be sent. Screening requirements, so the design can prioritize the determination of transmission resources from the intersection of the second resource and the third resource, and use the second resource or all of the remaining resources of the intersection and the third resource as the transmission resource to reduce the transmission resources according to the second resource.
  • the probability of determining the transmission resource by the remaining resources other than the intersection in the set increases the rationality of selecting the transmission resource according to the selection.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource includes The intersection and the sixth resource, wherein the sixth resource belongs to the remaining resources of the union of the second resource and the third resource except the intersection.
  • the above third resource is equal to the first resource, or the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the transmission resource is preferentially selected according to the intersection of the second resource and the third resource, which improves the rationality of selecting transmission resources.
  • the difference between the number of resource units included in the first resource and the number of resource units included in the third resource is based on the value of the first priority and the second priority The difference between the values of the level is determined.
  • the third resource can be flexibly determined. And when the value of the first priority is greater than the value of the second priority, a part of the resource units are excluded from the first resource according to the difference between the value of the first priority and the value of the second priority, and the first The farther the difference between the first priority and the second priority is, the more resource units are excluded, so as to reduce the adjacent cell interference problem caused by the lower first priority and improve the rationality of determining transmission resources.
  • the first terminal device may receive resource indication information from at least one third terminal device.
  • the priority indicated by the resource indication information of each third terminal device in the at least one third terminal device is the same as the first priority.
  • the transmission resources are determined according to the first priority, the second priority, the first resource, the second priority, and the resources and priorities respectively indicated by the resource indication information of the at least one third terminal device.
  • the first terminal device can determine the transmission resource by integrating the recommended resources of the multiple auxiliary terminal devices, thereby improving the rationality of the determined transmission resource.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource Including the intersection and the eighth resource, wherein the eighth resource belongs to the remaining resources in the seventh resource except the intersection.
  • the transmission resource includes the seventh resource and the first Nine resources, the first resource belongs to the remaining resources in the second resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • This design is adopted, because when the value of the first priority is greater than or equal to the value of the second priority, the remaining resources other than the intersection in the seventh resource may not meet the service's screening requirements for resources. , so the design can preferentially determine the transmission resource from the intersection of the second resource and the seventh resource, and use the second resource or all of the remaining resources of the intersection and the seventh resource as the transmission resource, so as to reduce the need for dividing according to the second resource.
  • the remaining resources outside the intersection set determine the probability of transmission resources, and improve the rationality of selecting transmission resources according to.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource includes the intersection and the tenth resource , the tenth resource belongs to the remaining resources of the union of the second resource and the seventh resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • transmission resources are preferentially selected according to the intersection of the second resource and the seventh resource, which improves the rationality of selecting transmission resources.
  • the seventh resource is the resource unit included in the first resource and the resource unit included in the resource indicated by the respective resource indication information of the at least one third terminal device, and the weight is not lower than the first resource unit.
  • the first threshold may be predefined or determined by the first terminal device.
  • the first terminal device can reasonably determine the seventh resource according to the weight of each resource unit, which further improves the rationality of determining the transmission resource.
  • the first priority is the difference between the priorities indicated by the resource indication information from one or more other terminal devices received by the first terminal device and the second priority The priority with the smallest absolute value.
  • the first terminal device when the first terminal device receives resources respectively recommended by multiple auxiliary terminal devices with different priorities, the first terminal device can determine the transmission according to the recommended resources of the auxiliary terminal device whose priority is closest to the priority of the data to be sent by itself. It is not necessary to determine the transmission resources according to the auxiliary resources of other auxiliary terminal devices, so as to improve the rationality of determining the transmission resources.
  • an embodiment of the present application provides a communication method, and the method can be executed by a terminal device or a component in the terminal device (such as a processor, a communication chip, or a chip system, etc.).
  • the second terminal device can determine the first resource according to the first priority.
  • the second terminal device sends resource indication information to the first terminal device, where the resource indication information may indicate the first resource and the first priority.
  • the first priority is a priority used to determine auxiliary resources for other terminal devices, which may be configured or pre-defined by the base station.
  • the second terminal device acts as an auxiliary terminal device, it corresponds to the first priority
  • the first priority may also be the priority corresponding to the data to be sent by the second terminal device itself, or a default priority.
  • an embodiment of the present application provides a communication apparatus, which can implement the first aspect or the method implemented by the first terminal device in any possible implementation manner of the first aspect.
  • the apparatus comprises corresponding units or components for carrying out the above-described method.
  • the units included in the apparatus may be implemented by software and/or hardware.
  • the apparatus may be, for example, a terminal device, or a component or a baseband chip, a system-on-chip, or a processor that can support the implementation of the above method in the terminal device.
  • the communication device may include modular components such as a transceiver unit (or a communication module, a transceiver module) and a processing unit (or a processing module), and these modules may perform the first aspect or each possibility of the first aspect.
  • the transceiver unit may be a transmitter and a receiver, or an integrated transceiver, which may include an antenna and a radio frequency circuit
  • the processing unit may be a processor, such as a baseband chip.
  • the transceiver unit may be a radio frequency unit
  • the processing unit may be a processor.
  • the transceiver unit may be an input/output interface of the chip system
  • the processing unit may be a processor of the chip system, such as a central processing unit (central processing unit, CPU).
  • the transceiver unit may receive resource indication information from the second terminal device.
  • the resource indication information may be used to indicate the first resource and the resource of the first priority.
  • the first resource is determined according to the first priority.
  • the processing unit may further determine the second resource according to the second priority, where the second priority is the priority of the data to be sent of the first terminal device.
  • the transceiver unit may send the to-be-sent data on a transmission resource, where the transmission resource is determined according to the first priority, the second priority, the first resource, and the second resource.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource may include The intersection and the fourth resource, wherein the fourth resource belongs to the remaining resources in the third resource except the intersection.
  • the transmission resource may include the third resource and A fifth resource, wherein the fifth resource belongs to the remaining resources in the second resource except the intersection.
  • the above third resource is equal to the first resource, or, the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource includes The intersection and the sixth resource, wherein the sixth resource belongs to the remaining resources of the union of the second resource and the third resource except the intersection.
  • the above third resource is equal to the first resource, or the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the difference between the number of resource units included in the first resource and the number of resource units included in the third resource is based on the value of the first priority and the second priority The difference between the values of the level is determined.
  • the transceiver unit may also receive resource indication information from at least one third terminal device.
  • the priority indicated by the resource indication information of each third terminal device in the at least one third terminal device is the same as the first priority.
  • the transmission resources are determined according to the first priority, the second priority, the first resource, the second priority, and the resources and priorities respectively indicated by the resource indication information of the at least one third terminal device.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource Including the intersection and the eighth resource, wherein the eighth resource belongs to the remaining resources in the seventh resource except the intersection.
  • the transmission resource includes the seventh resource and the first Nine resources, the first resource belongs to the remaining resources in the second resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource includes the intersection and the tenth resource , the tenth resource belongs to the remaining resources of the union of the second resource and the seventh resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • the seventh resource is the resource unit included in the first resource and the resource unit included in the resource indicated by the respective resource indication information of the at least one third terminal device, and the weight is not lower than the first resource unit.
  • the first priority is the difference between the priorities indicated by the resource indication information from one or more other terminal devices received by the first terminal device and the second priority The priority with the smallest absolute value.
  • the communication device may also include a transceiver and a processor.
  • the processor is configured to support the communication apparatus to perform the corresponding functions of the first terminal device in the above-mentioned first aspect or each possible design example of the first aspect, such as generating information that needs to be sent by the transceiver, and/or, to the transceiver The received information is processed.
  • the transceiver can be used for sending and receiving information or data, and for the communication device to communicate and interact with other communication devices (eg, second terminal equipment) in the communication system.
  • the transceiver can be connected to the communication device in an external manner.
  • the communication device may further include a memory.
  • the memory is coupled to the processor for storing necessary program instructions and data of the communication device, wherein the memory can be used as one of the components of the communication device or externally connected to the communication device.
  • the processor may be configured to perform the steps performed by the processing unit in the third aspect, and the transceiver may be configured to perform the steps performed by the transceiving unit in the third aspect.
  • an embodiment of the present application provides a communication apparatus, which can implement the second aspect or the method implemented by the second terminal device in any possible implementation manner of the second aspect.
  • the apparatus comprises corresponding units or components for carrying out the above-described method.
  • the units included in the apparatus may be implemented by software and/or hardware.
  • the apparatus may be, for example, a network device, or a chip, a chip system, or a processor that can support the network device to implement the above method.
  • the communication device may include modular components such as a transceiver unit (or a communication module, a transceiver module) and a processing unit (or a processing module), and these modules may perform the first aspect or each possibility of the first aspect.
  • the transceiver unit may be a transmitter and a receiver, or an integrated transceiver, which may include an antenna and a radio frequency circuit
  • the processing unit may be a processor, such as a baseband chip.
  • the transceiver unit may be a radio frequency unit
  • the processing unit may be a processor.
  • the transceiver unit may be an input/output interface of the chip system
  • the processing unit may be a processor of the chip system, such as a central processing unit (central processing unit, CPU).
  • the processing unit may be configured to determine the first resource according to the first priority.
  • the transceiver unit may be configured to send resource indication information to the first terminal device, where the resource indication information is used to indicate the first resource and the first priority.
  • the first priority may be used to determine auxiliary resources for other terminal devices.
  • the first priority may be configured or predefined by the base station.
  • the resource is selected according to the RSRP threshold corresponding to the priority, and the first priority may also be the priority corresponding to the data to be sent by the second terminal device itself, or a default priority.
  • the communication device may also include a transceiver and a processor.
  • the processor is configured to support the communication apparatus to perform the corresponding functions of the second terminal device in the second aspect or each possible design example of the second aspect, such as generating information that needs to be sent by the transceiver, and/or, to the transceiver The received information is processed.
  • the transceiver can be used to send and receive information or data, and for the communication device to communicate and interact with other communication devices (such as the first terminal equipment) in the communication system.
  • the transceiver can be connected to the communication device in an external manner.
  • the communication device may further include a memory.
  • the memory is coupled to the processor for storing necessary program instructions and data of the communication device, wherein the memory can be used as one of the components of the communication device or externally connected to the communication device.
  • the processor may be configured to perform the steps performed by the processing unit in the fourth aspect
  • the transceiver may be configured to perform the steps performed by the transceiving unit in the fourth aspect.
  • an embodiment of the present application provides a communication system.
  • the communication system may include the communication device provided in the third aspect and the communication device provided in the fourth aspect.
  • the second terminal device can be used to determine according to the first priority. the first resource, and send resource indication information to the first terminal device.
  • the resource indication information is used to indicate the first resource and the first priority.
  • the first terminal device may receive the resource indication information, and determine the second resource according to the second priority, where the second priority is the priority of the data to be sent by the first terminal device.
  • the first terminal device may also send the to-be-sent data on transmission resources, where the transmission resources are determined according to the first priority, the second priority, the first resource, and the second resource.
  • the first priority is used to determine auxiliary resources for other terminal devices.
  • the first priority may be configured or predefined by the base station.
  • the resource is selected according to the RSRP threshold corresponding to the level, and the first priority may also be the priority corresponding to the data to be sent by the second terminal device itself, or a default priority.
  • the present application provides a computer storage medium, where a program is stored in the computer storage medium or, when it is invoked and executed on a computer, the computer may execute the first aspect or any one of the first aspects. , or the method described in the second aspect or any one of the possible designs of the second aspect.
  • the present application provides a computer program product
  • the computing basic product may include a program or an instruction, when the computer program product is run on a computer, the computer executes the first aspect or any one of the first aspects. possible designs, or the method described in the second aspect or any one of the possible designs of the second aspect.
  • the present application provides a chip or a chip system including a chip, and the chip may include a processor.
  • the chip may also include memory (or storage modules) and/or transceivers (or communication modules).
  • the chip can be used to perform the method described in the first aspect or any possible design of the first aspect, or the second aspect or any possible design of the second aspect.
  • the chip system may be composed of the above-mentioned chips, and may also include the above-mentioned chips and other discrete devices, such as memories (or storage modules) and/or transceivers (or communication modules).
  • the chip system in the above aspects may be a system on chip (system on chip, SOC), or a baseband chip, etc.
  • the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, an interface module, and the like.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of determining transmission resources by assisting terminal equipment according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of an own relationship for determining transmission resources by assisting terminal equipment according to an embodiment of the present application
  • FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a bitmap provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a method for determining a third resource according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a method for determining transmission resources according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another method for determining transmission resources provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another method for determining transmission resources provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of another method for determining a third resource provided by an embodiment of the present application.
  • FIG. 13 is a schematic sequence diagram of multiple resource indication information received by a first terminal device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application.
  • the resource determination method provided by the embodiment of the present application can be applied to the communication scenario of sideline transmission shown in FIG. 1 .
  • the communication scenario may include UE1 and UE2.
  • UE1 and/or UE2 may be terminal devices such as a terminal (terminal), mobile station (mobile station, MS), and mobile terminal (mobile terminal), or components such as a chip and a chip system in the terminal device.
  • UE1 and/or UE2 in this embodiment of the present application may be a mobile phone (or a "cellular" phone), a computer with a mobile terminal, a smart vehicle, a smart device related to the Internet of Vehicles (such as smart street lights, etc.), Wearable devices, etc.
  • UE1 and/or UE2 may also be portable, pocket-sized, hand-held, computer-built, or vehicle-mounted mobile devices.
  • UE1 and/or UE2 may also be a communication chip with a communication module, such as a chip in a handheld or vehicle-mounted device.
  • UE1 and UE2 may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant) , PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, unmanned vehicles, wearable devices, terminal devices in future 5G networks or future evolved PLMN networks terminal devices, etc.
  • UE1 and UE2 can be deployed on land, including indoors or outdoors, held by users or in vehicles; terminal equipment can also be deployed on water (such as ships, etc.); terminal equipment can also be deployed in the air (such as aircraft, balloons and satellite, etc.).
  • UE1 and UE2 may be configured to support SL communication, for example, SL communication may be performed between UE1 and UE2 through a direct communication (PC5) air interface.
  • UE1 and/or UE2 can also communicate with base station network equipment (for example, communicate through a universal user to network interface (universal user to network interface, Uu air interface)), and accept network services provided by the network equipment.
  • base station network equipment for example, communicate through a universal user to network interface (universal user to network interface, Uu air interface)
  • Uu air interface universal user to network interface
  • Fig. 2 takes the cellular based vehicle-to-everything (cellular based vehicle-to-everything, C-V2X/V2X) communication technology as an example to illustrate the possible architecture of the sideline transmission communication scenario.
  • C-V2X/V2X cellular based vehicle-to-everything
  • the V2X system can be further divided into vehicle-to-vehicle communication (V2V), vehicle-to-pedestrian (V2P), vehicle-to-vehicle communication (V2P), and vehicle-to-vehicle communication (V2P).
  • V2V vehicle-to-vehicle communication
  • V2P vehicle-to-pedestrian
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-vehicle communication
  • V2P vehicle-to-
  • UE1 and UE2 respectively perform SL communication as vehicles or vehicle-mounted devices.
  • V2P system one of UE1 and UE2 is used as a vehicle or vehicle-mounted device, and the other is used as a communication device held by pedestrians or carried by other means for SL communication.
  • V2I system one of UE1 and UE2 is used as a vehicle or vehicle-mounted device, and the other is used as a roadside unit (RSU), smart streetlights and other infrastructures for SL communication.
  • RSU roadside unit
  • smart streetlights and other infrastructures for SL communication In the V2N system, one of UE1 and UE2 is used as a vehicle or vehicle-mounted device, and the other is used as a network device such as a base station for SL communication.
  • resource allocation In the NR V2X system, resource allocation (RA) is an important technical branch. For the Uu interface between the 5G base station (next generation node B, gNB) and the UE, resource allocation involves the gNB scheduling the time-frequency resources it should use in wireless communication for the UE. Downlink (downlink, DL) information of the gNB, and uplink (uplink, UL) information may also be sent to the gNB.
  • Downlink (downlink, DL) information of the gNB and uplink (uplink, UL) information may also be sent to the gNB.
  • PC5 communication interface In the NR system, in addition to the Uu interface, there is also a PC5 communication interface between the UE and the UE. The transmission link in the PC5 interface is defined as the side link.
  • Resource allocation is also very important for the PC5 interface.
  • resource allocation on the PC5 interface can be divided into two modes: Mode 1 and Mode 2.
  • Mode 1 resource allocation mode the time-frequency resources used for SL transmission are centrally scheduled by the gNB; in the Mode 2 resource allocation mode, the time-frequency resources used for SL transmission are the time-frequency resources occupied by the UE by sensing the surrounding time-frequency resources. situation, and then select it from the resource pool configured or pre-configured by the network device.
  • the UE working in the Mode 1 resource allocation mode needs to be within the coverage of the gNB, and the UE working in the Mode 2 resource allocation mode may not be within the coverage of the gNB, or it may be within the coverage of the gNB.
  • Mode 2 resource allocation mode it can be further divided into the following four subcategories.
  • Mode 2(a) is the time-frequency resource used by the UE to select SL transmission based on its own perception
  • Mode 2(b) is the time-frequency resource used by the UE to assist other UEs to select SL transmission.
  • Mode 2(c) the UE selects the time-frequency resources used for SL transmission according to the configuration, or one of the pre-configured resource pools, or multiple SL transmission patterns; correspondingly, Mode 2(d) Then, the time-frequency resource used by the UE for SL transmission is determined and selected by the UE with resource scheduling capability.
  • the sending UE can determine the transmission used for SL data transmission according to the resource indication information (or auxiliary information) from the auxiliary UE before transmitting the SL data to the receiving UE. resource.
  • the sending UE is located within the coverage of the auxiliary UE, and the receiving UE is used as the auxiliary UE, or one or more UEs near the receiving UE are used as the auxiliary UE. Any one or more of the above sending UE, receiving UE or assisting UE may include UE1 or UE2 shown in FIG. 1 and/or FIG. 2 . It should be understood that the present application is not limited to the scenario shown in FIG. 3 , and may actually include more auxiliary UEs.
  • Mode 2(b) can be further divided into trigger-based and non-trigger-based.
  • the sending UE will actively send a trigger message to the auxiliary UE before sending the periodic service.
  • the trigger message is used to indicate the priority of the data to be sent, the service period and the size of the service data to be sent by the sending UE.
  • the assisting UE here may be the receiving UE or a UE near the receiving UE that can be used to help the receiving UE determine resource selection.
  • the auxiliary UE can select auxiliary resources according to the parameters provided in the trigger message.
  • the resources are screened and excluded through resource sensing, and the auxiliary resources are obtained.
  • the auxiliary resource is fed back to the sending UE as resource indication information.
  • the sending UE After successfully receiving the resource indication information from the auxiliary UE, the sending UE will jointly determine the transmission resource finally used for data transmission in combination with the candidate resources that it has sensed and screened and the auxiliary resource selected by the auxiliary UE.
  • the sending UE may determine candidate resources according to the priority of the data to be sent. For example, a reference signal received power (RSRP) threshold is determined according to the priority of the data to be sent. There is a mapping relationship between the RSRP threshold and the data to be sent. For example, the sending UE is configured with a relationship between the priority and the RSRP threshold. When determining the candidate resource, the corresponding relationship can be searched to determine the RSRP threshold corresponding to the priority of the data to be sent.
  • the priority of the data to be sent may be related to the service to which the data belongs, or the configuration of the sending UE, and the like.
  • the sending UE may perform resource sensing, and when the RSRP of the sensed resource is less than (or not exceeding) the previously determined signal strength threshold, the sending UE determines the resource as a candidate resource.
  • the auxiliary UE determines the auxiliary resource according to the set priority
  • the auxiliary UE determines resources according to the service priority of the sending UE in the trigger message, so the auxiliary resources determined by the auxiliary UE and the resources determined by the sending UE's own perception satisfy the same RSRP threshold.
  • the set of candidate transmission resources determined by the sending UE according to its own sensing result may be denoted as S T
  • the set of resources determined by the assisting UE according to the priority indicated in the trigger message may be denoted as S R .
  • ST indicates that this part of the resources is a resource set with the least interference to the sending UE and the surrounding UEs under the premise of satisfying the priority of the data to be sent.
  • SR indicates that this part of the resources is a resource set with the least interference to the auxiliary UE and UEs around the auxiliary UE under the premise of satisfying the priority of the data to be sent.
  • ST and SR are determined by screening based on RSRP thresholds corresponding to the same priority, and they should have the same reference weight proportion when determining the final transmission resource.
  • the user equipment corresponding to the sending UE can preferentially select resources from the intersection of ST and SR for service data transmission, and the intersection of resources is the optimal resource selection for both the sending UE and the receiving UE.
  • the user equipment selects resources from the non-intersection part of ST and SR for transmission of service data.
  • the sending UE does not send the relevant service information to the auxiliary UE in advance in the form of a trigger message.
  • the auxiliary UE can only preset some baseline parameters by itself, including setting priorities.
  • the auxiliary UE determines auxiliary resources through resource sensing according to the set priority. After selecting an appropriate auxiliary resource, the auxiliary UE feeds back the selected auxiliary resource as resource indication information to the sending UE. After successfully receiving the resource indication information from the auxiliary UE, the sending UE will jointly determine the transmission resource finally used for data transmission in combination with the candidate resources that it has sensed and screened and the auxiliary resource selected by the auxiliary UE.
  • the set priority is likely to be inconsistent with the priority of the data to be sent by the sending UE, and the transmission resource determined by the sending UE according to the resource indication information does not meet the service's screening requirements for resources. Data transmission is subject to large transmission interference.
  • an embodiment of the present application provides a communication method.
  • the communication method can be implemented by the first terminal device.
  • the first terminal equipment may include UE1 and/or UE2 shown in FIG. 1 or FIG. 2 , or the first terminal equipment may include the sending UE shown in FIG. 3 .
  • the communication method provided by the embodiment of the present application is described below by taking the sending UE and the assisting UE shown in FIG. 3 as an example.
  • the method may include the following steps shown in Figure 6:
  • the sending UE receives resource indication information from the auxiliary UE, where the resource indication information is used to indicate a first resource and a first priority.
  • the first resource is determined according to the first priority, for example, the first resource is a resource determined by the auxiliary UE according to the first priority, and the resource may be referred to as a recommended resource for the auxiliary UE, or the auxiliary UE according to the first priority.
  • the first priority is the set priority of the auxiliary UE, and the auxiliary UE obtains the first resource according to the first priority and the resource sensing result.
  • the first priority may be set by the factory configuration of the auxiliary UE or configured by the base station.
  • the first priority may also be the priority of the data currently to be sent by the auxiliary UE, or the priority of the data previously sent by the auxiliary UE.
  • the first resource may also be referred to as a resource corresponding to the first priority.
  • the resource element included in the first resource is determined by the auxiliary UE according to the first priority, for example, the resource element included in the first resource is an RSRP determined by the auxiliary UE that is less than (or does not exceed) the RSRP threshold corresponding to the first priority. resource unit.
  • the assisting UE may determine the respective RSRPs of the resource units through resource sensing, and determine the RSRP thresholds according to the first priority.
  • the resource indication information may include a bitmap.
  • the bitmap may be used to indicate resource elements included in the first resource. Exemplarily, when the bit value is 1, it indicates that the resource unit corresponding to the bit is a resource unit included in the first resource. In addition, the resource unit whose bit value is 0 may also be used as the resource unit included in the first resource.
  • the bitmap shown in FIG. 7 may correspond to a resource window occupying 4 time slots and having 4 subchannels on each time slot, and each bit corresponds to one subchannel in the resource window.
  • the resource indication information may include information such as an index or a time-frequency location for indicating a resource unit included in the first resource.
  • resource unit in this application may be a sub-channel.
  • the above resource indication information may also be referred to as auxiliary information.
  • the sending UE determines the second resource according to the second priority.
  • the second priority is the priority of sending data to be sent by the UE.
  • the second resource is a candidate resource determined by the sending UE according to the second priority.
  • the second resource may also be referred to as a resource corresponding to the second priority.
  • the second resource includes sending candidate resources determined by the UE according to the second priority.
  • the second resource includes sending resource elements whose RSRP determined by the UE is less than (or does not exceed) the RSRP threshold corresponding to the second priority.
  • the sending UE may determine the respective RSRPs of the resource units through resource sensing, and determine the RSRP threshold according to the second priority.
  • the sending UE may determine the second resource according to the second priority after receiving the resource indication information, or may receive the resource indication information after determining the second resource according to the second priority.
  • the sending UE sends the to-be-sent data on the transmission resource.
  • the transmission resource is determined according to the first priority, the second priority, the first resource and the second resource.
  • the sending UE can determine the transmission resource according to the first priority, the second priority, the first resource and the second resource, and send the data to be sent through the transmission resource, where the second priority is the priority of the data to be sent level, the second resource is a candidate resource determined according to the second priority, the first resource is determined by the auxiliary UE through resource sensing according to the first priority, and the first priority is the set priority of the auxiliary UE.
  • the values of the first priority and the second priority are considered, so the way of determining the transmission resources can be optimized, The interference received when the sending UE sends data through the determined transmission resource is reduced.
  • the sending UE may determine the third resource according to the first resource, and determine the transmission resource according to the first priority, the second priority, the second resource, and the third resource.
  • the sending UE may use all resources included in the first resource as the third resource. For example, as shown in FIG. 7 , if the resource unit whose bit value is 1 is the resource unit included in the first resource, the sending UE may use these resource units as the third resource.
  • the third resource is a partial resource determined from the first resource according to the first priority and the second priority. for example.
  • the difference between the number of resource units included in the first resource and the number of resource units included in the third resource is determined according to the difference between the first priority and the second priority.
  • the sending UE may determine the value of X according to the difference between the value of the first priority (hereinafter referred to as P1) and the value of the second priority (hereinafter referred to as P2), where X may represent the first resource
  • P1 the value of the first priority
  • P2 the value of the second priority
  • the specific expression manner of the relationship between X and P1 and P2 is not limited herein.
  • the difference between the value of the first priority and the value of the second priority is positively related to X, that is, the value of the first priority is The greater the difference between the value and the value of the second priority, the greater the value of X, so the sending UE needs to exclude more resources from the resources included in the first resource, and the fewer resource units are used as the third resource; Conversely, the smaller the difference between the value of the first priority and the value of the second priority, the smaller the value of X, so the sending UE needs to exclude less resources from the resources included in the first resource, as the third The more resource units the resource has. It should be understood that the fact that the first priority is lower than the second priority means that the value P1 of the first priority is greater than the value P2 of the second priority.
  • the sending UE needs to exclude 3 resource units from the 7 resource units included in the first resource, and use the remaining 4 resource units as resource units included in the third resource.
  • the resource unit corresponding to the bit indicated by the bold line box in FIG. 8 is the resource unit included in the third resource.
  • the sending UE needs to exclude 3 resource units from the 7 resource units included in the first resource, and use the remaining 4 resource units as resource units included in the third resource.
  • the resource unit corresponding to the bit indicated by the bold line box in FIG. 8 is the resource unit included in the third resource.
  • the manner of excluding resource units from the resource units included in the first resource may be random exclusion, or sequential exclusion according to an index or time-frequency position of the resource unit, which is not specifically limited here.
  • the sending UE when the first priority is lower than the second priority, the sending UE excludes some resource units from the resource units included in the first resource according to the difference between the first priority and the second priority, which can reduce Because of the interference problem caused by the lower first priority, the SL transmission accuracy is improved.
  • the method for determining the transmission resource is described by taking the value of the first priority as P1 and the value of the second priority as P2 as an example.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resources include the intersection and A fourth resource, the fourth resource belongs to the remaining resources in the third resource except the intersection.
  • the transmission resource includes the third resource and the fifth resource, the The fifth resource belongs to the remaining resources in the second resource except the intersection.
  • the sending UE may prioritize the third resource and the third resource.
  • Some or all of the resource units in the intersection of the second resources that is, the preferentially selected resources indicated by horizontal shading as shown in FIG. 9 ) are used as transmission resources, or in other words, the transmission resources belong to the intersection of the third resource and the second resource.
  • the sending UE takes the resource units included in the intersection of the third resource and the second resource as The transmission resource, and the fourth resource is additionally used as the transmission resource.
  • the fourth resource belongs to the remaining resources of the third resource except the intersection.
  • the third resource can be selected from the sub-optimal selection resources indicated by vertical shading according to the number of resource units required by the data to be sent. Four resources are used as transmission resources.
  • the sending UE can use the third resource as a transmission resource, and can additionally reduce no resources as a transmission resource.
  • the fifth resource belongs to the remaining resources in the second resource other than the intersection. For example, as shown in FIG. 9 , the fifth resource can be selected from the remaining selected resources indicated by the oblique shading according to the number of resource units required for the data to be sent as the transfer resources.
  • the sending UE can select transmission resources from auxiliary resources corresponding to higher priorities more preferentially. Therefore, when the first priority is greater than or equal to the second priority, the number of transmission resources can be reduced. The interference in the SL transmission process can improve the SL transmission efficiency.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource may include the intersection and the sixth resource, and the sixth resource belongs to the second resource and the The union of the third resources is the remaining resources other than the intersection.
  • the sending UE when the sending UE determines the transmission resource according to the second resource and the third resource shown in FIG. 10 , if the first priority is lower than the second priority, the sending UE can prioritize the third resource and the second resource.
  • Some or all of the resource units in the intersection of resources ie, the preferentially selected resources indicated by the horizontal shading as shown in FIG. 10 ) are used as transmission resources, or in other words, the transmission resources belong to the intersection of the third resource and the second resource.
  • the sending UE takes the resource units included in the intersection of the third resource and the second resource as The transmission resource, and the sixth resource is additionally used as the transmission resource.
  • the sixth resource belongs to the remaining resources in the union set of the second resource and the third resource except the intersection. For example, as shown in FIG. 10 , the resource units required by the data to be sent can be selected from the sub-optimal resources indicated by vertical shading. The sixth resource is selected as the transmission resource.
  • the SL transmission interference can be reduced when the first priority is lower than the second priority, thereby improving the SL transmission accuracy.
  • the third resource is the third resource shown in FIG. 8
  • the third resource excludes X (or X%) resource units based on the first resource shown in FIG. 7
  • the sending UE may preferentially use the resource unit included in the intersection of the third resource and the second resource (ie, the preferentially selected resource indicated by horizontal shading as shown in FIG. 11 ) as the transmission resource.
  • the sending UE sends the third resource
  • the resource unit included in the intersection with the second resource is used as a transmission resource, and additionally can be obtained from the sixth resource (that is, the resource unit included in the second resource and the resource unit included in the third resource, except that the intersection of the third resource and the second resource includes
  • the sixth resource that is, the resource unit included in the second resource and the resource unit included in the third resource, except that the intersection of the third resource and the second resource includes
  • the resource units other than the resource units shown in FIG. 11 the sub-optimal selection resource indicated by vertical shading as shown in FIG. 11 , some or all of the resource units are selected as transmission resources according to the number of resource units required by the data to be sent.
  • the determination process of the transmission resources shown in FIG. 11 reduces the interference problem caused by the low first priority by excluding some auxiliary resources, thereby further improving the SL transmission accuracy.
  • the sending UE in addition to receiving the resource indication information from the auxiliary UE, if the sending UE also receives the resource indication information from at least one third terminal device other than the auxiliary UE, if each th The priority indicated by the resource indication information of the third terminal device is the same as the first priority, then at this time, the transmission resources are based on the first priority, the second priority, the first resource and the The resources and priorities indicated by the resource indication information respectively determine the transmission resources.
  • the third terminal device may be the same as or different from the auxiliary UE.
  • the resource is determined by the third terminal device according to the priority
  • the method of determining the resource according to the priority can refer to the description in this application when the auxiliary UE determines the first resource according to the first priority.
  • the sending UE may receive resource indication information from multiple UEs (including the auxiliary UE and at least one third terminal device), if the respective priorities of the multiple UEs are the same, the sending UE may The respectively indicated resource indication information, the second priority and the second resource select the transmission resource.
  • the weight in the resource units included in the resource units respectively indicated by the multiple UEs (including the first resource and the resource indicated by the respective resource indication information of the at least one third terminal device) by the sending UE is not lower than the first threshold.
  • the at least one resource unit of is the seventh resource, and the transmission resource is determined according to the first priority, the second priority, the seventh resource and the second resource.
  • the weight of the resource unit may represent the possibility of the resource unit being used as the transmission resource, for example, the higher the weight of the resource unit, the higher the possibility of the resource unit being used as the transmission resource.
  • the first threshold may be a predefined value, or may be determined by the first terminal device.
  • the sending UE can determine the value of each resource unit according to the first resource, auxiliary resource 1 and auxiliary resource 2 weight.
  • the method for determining the weight value includes, but is not limited to, performing a weighted average according to the values of the bits corresponding to the same resource unit in the first resource, auxiliary resource 1, and auxiliary resource 2 respectively. For example, if the bits corresponding to the resource unit are The values of the bits in the first resource, the auxiliary resource 1 and the auxiliary resource 2 are all 1 respectively, and the weight corresponding to the resource unit is 1.
  • the weight of the resource unit may also be determined according to the number of times the resource unit includes the resources indicated in the resource indication information and the total number of resource indication information, where the resource indication information here includes the information from the auxiliary UE and all third terminal equipments resource indication information.
  • the sending UE receives resource indication information from the auxiliary UE and two third terminal equipments, that is, the total number of resource indication information is 3, and the resource unit A includes the resource indication information of the first resource and one third terminal equipment In the indicated resources, that is, the resource unit A is included in the resources indicated by the two resource indication information, it can be determined that the weight of the resource unit is 2/3 (or 0.667).
  • the first threshold may be a threshold set by the sending UE, or may be configured by a network device (eg, a base station). For example, as shown in FIG. 12 , when the first threshold is not higher than 0.667, the sending UE may use resource units with a weight not lower than 0.667 (that is, the resource units indicated by the bold line box in FIG. 12 ) as the resources included in the seventh resource unit.
  • the manner of determining the transmission resource according to the first priority, the second priority, the seventh resource, and the second resource may refer to the foregoing description. and the second resource to determine the manner in which the resource is transmitted.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource .
  • the transmission resources include the intersection and The eighth resource, the eighth resource belongs to the remaining resources in the seventh resource except for the set.
  • the transmission resource includes the seventh resource and the ninth resource.
  • the ninth resource belongs to the remaining resources in the second resource except the intersection.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource may include the intersection and the tenth resource, and the tenth resource belongs to the second resource and the The union of the seventh resources is the remaining resources except the intersection.
  • each resource indication information is used to indicate the priority of a fourth terminal equipment and the This priority determines the resource. Then the sending UE may determine that the absolute value of the difference between the value of the first priority and the value of the second priority is less than or equal to the value of the priority indicated by each resource indication information and the value of the fourth priority. After the absolute value of the difference between the values, the transmission resource is determined according to the first priority, the second priority, the first resource and the second resource, so as to improve the accuracy of determining the transmission resource according to the auxiliary resource and reduce the SL data transmission process. interfered with.
  • the first priority involved in S101 is the second priority among the priorities indicated by the resource indication information received by the sending UE from one or more other terminal devices (including the auxiliary UE and the above-mentioned fourth terminal device).
  • the fourth terminal device may be the same as or different from the assisting UE.
  • the sending UE receives resource indication information 1, resource indication information 2 and resource indication information 3 within the window for receiving resource indication information, the resource indication information 1 comes from the auxiliary UE, and the resource indication information 1 indicates The value of the first priority is P1, the value of the priority indicated by the resource indication information 2 is P3, and the value of the priority indicated by the resource indication information 3 is P4. Then, when determining that P1, the values P2, P3, and P4 of the priorities of the data to be sent by itself satisfy the priority relationship, the sending UE can determine the to-be-to-be based on P1, P2, the first resource and the second resource indicated by the resource indication information 1.
  • the transport resource for sending data includes:
  • the priority relationship can be expressed as: the absolute value of the difference between P1 and P2 is less than or equal to the absolute value of the difference between P1 and P3, and the absolute value of the difference between P1 and P2 is less than or equal to Equal to the absolute value of the difference between P1 and P4.
  • the embodiments of the present application further provide corresponding apparatuses, including corresponding modules for executing the foregoing embodiments.
  • the modules may be software, hardware, or a combination of software and hardware.
  • FIG. 14 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application, and the communication apparatus may be implemented by hardware components.
  • the apparatus 1400 shown in FIG. 14 may be a first terminal device or a second terminal device, or may be a chip, a chip system, or a processor that supports the first terminal device or the second terminal device to implement the above method.
  • the apparatus 1400 may be used to implement the method performed by the first terminal device (ie, the sending UE) and/or the second terminal device (ie, the auxiliary UE) described in the method embodiment shown in FIG. 6 , for example, the apparatus 1400 includes a terminal
  • the modules or units or means corresponding to the steps described in the embodiments of the present application are executed by the device or network device.
  • the functions or units or means may be implemented by software, or by hardware, or by executing corresponding software by hardware. , and can also be implemented by a combination of software and hardware. For details, further reference may be made to the corresponding descriptions in the foregoing corresponding method embodiments.
  • the apparatus 1400 may include one or more processors 1401, and the processors 1401 may also be referred to as processing units, which may implement certain control functions.
  • the processor 1401 may be a general-purpose processor or a special-purpose processor or the like.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to process communication devices (eg, base stations, baseband chips, terminals, terminal chips, distributed units (DUs) or centralized units (centralized units). unit, CU), etc.) to control, execute software programs, and process data of software programs.
  • communication devices eg, base stations, baseband chips, terminals, terminal chips, distributed units (DUs) or centralized units (centralized units). unit, CU), etc.
  • the processor 1401 may store instructions 1403 and/or data, and the instructions 1403 and/or data may be executed by the processor, so that the apparatus 1400 executes the methods described in the foregoing method embodiments. Methods.
  • the processor 1401 may include a transceiver unit for implementing receiving and transmitting functions.
  • the transceiver unit may be a transceiver circuit, or an interface, or an interface circuit.
  • Transceiver circuits, interfaces or interface circuits used to implement receiving and transmitting functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transmission.
  • the apparatus 1400 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the apparatus 1400 may include one or more memories 1402, on which instructions 1404 may be stored, and the instructions may be executed on the processor, so that the apparatus 1400 executes the above method embodiments method described.
  • data may also be stored in the memory.
  • instructions and/or data may also be stored in the processor.
  • the processor and the memory can be provided separately or integrated together. For example, the corresponding relationship described in the above method embodiments may be stored in a memory or in a processor.
  • the apparatus 1400 may further include a transceiver 1405 and/or an antenna 1406 .
  • the processor 1401 may be referred to as a processing unit, and controls the apparatus 1400 .
  • the transceiver 1405 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, a transceiver device or a transceiver module, etc., and is used to implement a transceiver function.
  • the apparatus 1400 in this embodiment of the present application may be used to execute the method described in the foregoing embodiments of the present application.
  • the transceiver 1405 may receive resource indication information from the second terminal device.
  • the resource indication information may be used to indicate the first resource and the resource of the first priority.
  • the first resource is determined according to the first priority.
  • the processor 1401 may determine the second resource according to the second priority, where the second priority is the priority of the data to be sent of the first terminal device.
  • the transceiver 1405 may also send the to-be-sent data on a transmission resource, where the transmission resource is determined according to the first priority, the second priority, the first resource, and the second resource.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource may include The intersection and the fourth resource, wherein the fourth resource belongs to the remaining resources in the third resource except the intersection.
  • the transmission resource may include the third resource and A fifth resource, wherein the fifth resource belongs to the remaining resources in the second resource except the intersection.
  • the above third resource is equal to the first resource, or, the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource includes The intersection and the sixth resource, wherein the sixth resource belongs to the remaining resources of the union of the second resource and the third resource except the intersection.
  • the above third resource is equal to the first resource, or the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the difference between the number of resource units included in the first resource and the number of resource units included in the third resource is based on the value of the first priority and the second priority The difference between the values of the level is determined.
  • the transceiver 1405 may also receive resource indication information from at least one third terminal device.
  • the priority indicated by the resource indication information of each third terminal device in the at least one third terminal device is the same as the first priority.
  • the transmission resources are determined according to the first priority, the second priority, the first resource, the second priority, and the resources and priorities respectively indicated by the resource indication information of the at least one third terminal device.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource Including the intersection and the eighth resource, wherein the eighth resource belongs to the remaining resources in the seventh resource except the intersection.
  • the transmission resource includes the seventh resource and the first Nine resources, the first resource belongs to the remaining resources in the second resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource includes the intersection and the tenth resource , the tenth resource belongs to the remaining resources of the union of the second resource and the seventh resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • the seventh resource is the resource unit included in the first resource and the resource unit included in the resource indicated by the respective resource indication information of the at least one third terminal device, and the weight is not lower than the first resource unit.
  • the first priority is the difference between the priorities indicated by the resource indication information from one or more other terminal devices received by the first terminal device and the second priority The priority with the smallest absolute value.
  • the processor 1401 may be configured to determine the first resource according to the first priority.
  • the transceiver 1405 may be configured to send resource indication information to the first terminal device, where the resource indication information is used to indicate the first resource and the first priority.
  • the first priority is used to determine auxiliary resources for other terminal devices, for example, the first priority may be configured or predefined by the base station.
  • the resource can be selected according to the RSRP threshold corresponding to the first priority.
  • the first priority can also be the priority corresponding to the data to be sent by the second terminal device itself, or a default priority. priority.
  • a communication device implemented by a modular structure may include a transceiver unit 1501 and a processing unit 1502 , and the transceiver unit 1501 and the processing unit 1502 are coupled to each other.
  • the communication apparatus 1500 may be used to perform the steps performed by the first terminal device and/or the second terminal device as shown in FIG. 6 above.
  • the transceiver unit 1501 may be used to support the communication device 1500 to communicate, and the transceiver unit 1501 may also be referred to as a communication unit, a communication interface, a transceiver module or a transceiver unit.
  • the transceiver unit 1501 may have a wireless communication function, such as being able to communicate with other communication devices through wireless communication.
  • the processing unit 1502 may also be referred to as a processing unit, and may be configured to support the communication apparatus 1500 to perform the processing actions performed by the terminal device or the network device in the above method embodiments, including but not limited to: generating information and messages sent by the transceiver unit 1501 , and/or perform demodulation and decoding on the signal received by the transceiver unit 1501, and so on.
  • transceiver unit 1501 may be implemented by the transceiver 1405 and/or the antenna 1406 shown in FIG. 14 .
  • the processing unit 1502 may be implemented by the processor 1401 shown in FIG. 14 , or by the processor 1401 and/or the memory 1402 shown in FIG. 14 .
  • the transceiver unit 1501 may receive resource indication information from the second terminal device.
  • the resource indication information may be used to indicate the first resource and the resource of the first priority.
  • the first resource is determined according to the first priority.
  • the processing unit 1502 may further determine the second resource according to the second priority, where the second priority is the priority of the data to be sent by the first terminal device.
  • the transceiver unit 1501 may send the to-be-sent data on a transmission resource, where the transmission resource is determined according to the first priority, the second priority, the first resource, and the second resource.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource may include The intersection and the fourth resource, wherein the fourth resource belongs to the remaining resources in the third resource except the intersection.
  • the transmission resource may include the third resource and A fifth resource, wherein the fifth resource belongs to the remaining resources in the second resource except the intersection.
  • the above third resource is equal to the first resource, or, the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the transmission resource belongs to the intersection of the third resource and the second resource.
  • the transmission resource includes The intersection and the sixth resource, wherein the sixth resource belongs to the remaining resources of the union of the second resource and the third resource except the intersection.
  • the above third resource is equal to the first resource, or the above third resource is a partial resource determined from the first resource according to the first priority and the second priority.
  • the difference between the number of resource units included in the first resource and the number of resource units included in the third resource is based on the value of the first priority and the second priority The difference between the values of the level is determined.
  • the transceiver unit 1501 may also receive resource indication information from at least one third terminal device.
  • the priority indicated by the resource indication information of each third terminal device in the at least one third terminal device is the same as the first priority.
  • the transmission resources are determined according to the first priority, the second priority, the first resource, the second priority, and the resources and priorities respectively indicated by the resource indication information of the at least one third terminal device.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource Including the intersection and the eighth resource, wherein the eighth resource belongs to the remaining resources in the seventh resource except the intersection.
  • the transmission resource includes the seventh resource and the first Nine resources, the first resource belongs to the remaining resources in the second resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • the transmission resource belongs to the intersection of the seventh resource and the second resource.
  • the transmission resource includes the intersection and the tenth resource , the tenth resource belongs to the remaining resources of the union of the second resource and the seventh resource except the intersection.
  • the above seventh resource is determined from the resources indicated by the first resource and the respective resource indication information of the at least one third terminal device.
  • the seventh resource is the resource unit included in the first resource and the resource unit included in the resource indicated by the respective resource indication information of the at least one third terminal device, and the weight is not lower than the first resource unit.
  • the first priority is the difference between the priorities indicated by the resource indication information from one or more other terminal devices received by the first terminal device and the second priority The priority with the smallest absolute value.
  • the processing unit 1502 may be configured to determine the first resource according to the first priority.
  • the transceiver unit 1501 may be configured to send resource indication information to the first terminal device, where the resource indication information is used to indicate the first resource and the first priority.
  • the first priority is used to determine auxiliary resources for other terminal equipment.
  • the first priority may be configured or predefined by the base station.
  • the first priority is The resource is selected according to the RSRP threshold corresponding to the priority, and the first priority may also be the priority corresponding to the data to be sent by the communication device itself, or a default priority.
  • processors and transceivers described in this application may be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application specific integrated circuits (ASICs), printed circuits Circuit board (printed circuit board, PCB), electronic equipment, etc.
  • ICs integrated circuits
  • RFICs radio frequency integrated circuits
  • ASICs application specific integrated circuits
  • PCB printed circuits Circuit board
  • the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the apparatus described in the above embodiments may be terminal equipment or network equipment, but the scope of the apparatus described in this application is not limited thereto, and the structure of the apparatus may not be limited by FIG. 4 and FIG. 5 .
  • An apparatus may be a stand-alone device or may be part of a larger device.
  • the means may be:
  • a set with one or more ICs may also include storage components for storing data and/or instructions;
  • ASIC such as modem (MSM)
  • each component in the above communication apparatus may be integrated into one module, or may exist independently physically.
  • the above-mentioned integrated modules can be implemented in either the form of hardware or the form of software function modules, which should not be construed as being limited to the structures shown in the above drawings.
  • the embodiments of the present application further provide a computer-readable storage medium on which a computer program is stored.
  • the program is executed by a processor, the computer is made to execute the above method embodiments and method implementations.
  • the present application also provides a computer program product, which, when invoked and executed by a computer, can enable the computer to implement the above method embodiments and any possible implementation manner of the method embodiments. operations performed by the first terminal device and/or the second terminal device.
  • the present application further provides a chip or a chip system, where the chip may include a processor.
  • the chip may also include a memory (or a storage module) and/or a transceiver (or a communication module), or the chip may be coupled with a memory (or a storage module) and/or a transceiver (or a communication module), wherein the transceiver (or or communication module) can be used to support the chip to perform wired and/or wireless communication, the memory (or storage module) can be used to store a program, and the processor can call the program to implement any one of the above method embodiments and method embodiments.
  • the chip system may include the above chips, or may include the above chips and other discrete devices, such as memories (or storage modules) and/or transceivers (or communication modules).
  • the memory described in this application may at least be used to store computer programs or instructions, and/or store information and data involved in the embodiments of this application.
  • the computer program can be invoked by a processor (or a processing unit or a processing module) to execute the methods described in the embodiments of the present application.
  • the memory can be flash memory, read-only memory (ROM), or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types of static storage devices that can store information and other types of dynamic storage devices for instructions, which may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other Optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired programs in the form of instructions or data structures code and any other medium that can be accessed by a computer, without limitation.
  • the memory may exist independently and be connected to the processor through a communication bus.
  • the memory can also be integrated with the processor.
  • the present application further provides a communication system, which can be used to implement the above method embodiments and any possible implementation manners of the method embodiments by the first terminal device and/or the first terminal device and/or the first terminal device. Two operations performed by the terminal device.
  • the communication system has the architecture shown in FIG. 1 , FIG. 2 or FIG. 3 .
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil de communication, qui peuvent être appliqués à un D2D ou à un réseau Internet de véhicules, tel que V2X, etc., ou qui peuvent être utilisés dans les domaines de la conduite intelligente, des véhicules connectés intelligents, etc. Par conséquent, un premier dispositif terminal peut recevoir une première ressource et une première priorité d'un second dispositif terminal, la première ressource étant déterminée en fonction de la première priorité. Le premier dispositif terminal détermine ainsi une ressource de transmission en fonction de la première ressource et de la première priorité, et en combinaison avec une seconde priorité des données à envoyer par lui-même et une seconde ressource déterminée en fonction de la seconde priorité, la première ressource étant déterminée en fonction de la première priorité, et la seconde ressource étant déterminée en fonction de la seconde priorité. La rationalité de la sélection d'une ressource de transmission peut être améliorée, et l'interférence se produisant lorsque des données à envoyer sont envoyées au moyen de la ressource de transmission peut être réduite.
PCT/CN2020/108013 2020-08-07 2020-08-07 Procédé et appareil de communication WO2022027689A1 (fr)

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