WO2021052473A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication Download PDF

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Publication number
WO2021052473A1
WO2021052473A1 PCT/CN2020/116251 CN2020116251W WO2021052473A1 WO 2021052473 A1 WO2021052473 A1 WO 2021052473A1 CN 2020116251 W CN2020116251 W CN 2020116251W WO 2021052473 A1 WO2021052473 A1 WO 2021052473A1
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WIPO (PCT)
Prior art keywords
information
target
measurement signal
measurement report
interference
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PCT/CN2020/116251
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English (en)
Chinese (zh)
Inventor
祝慧颖
董朋朋
窦圣跃
周国华
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华为技术有限公司
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Publication of WO2021052473A1 publication Critical patent/WO2021052473A1/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
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • This application relates to the field of communication, and more specifically, to a communication method and communication device.
  • the device-to-device (D2D) technology is a direct connection technology for terminal devices.
  • D2D communication is allowed to reuse the uplink resources of cellular communication, but this method cannot utilize the full bandwidth or must wait for uplink subframe scheduling before performing D2D transmission, resulting in low spectrum utilization.
  • D2D users and cellular users performing resource multiplexing respectively use beamforming technology according to their respective measured channel qualities, beams of D2D communication and beams transmitted by cellular users inevitably cause interference with each other.
  • the present application provides a communication method and a communication device, which are beneficial to reducing or avoiding the interference of D2D communication to cellular communication while improving the utilization rate of the spectrum.
  • a communication method includes: a network device determines a first target beam, the first target beam is a beam used by the first device when transmitting to the second device on the target transmission resource, and the target transmission resource is The time-frequency resource used during transmission between the network device and the third device; the network device sends first beam indication information to the first device, and the first beam indication information is used to indicate the first target beam.
  • the first device is the originator of D2D communication
  • the second device is the receiver of D2D communication
  • the third device communicates with the network device through a cellular network, which can be a terminal device, or a chip in a terminal device, or a terminal Circuits or circuit modules in equipment, etc.
  • the target transmission resource may be a time-frequency resource used for uplink communication, or may be a time-frequency resource used for downlink communication.
  • the communication method provided in this application allows D2D communication and cellular communication to reuse time-frequency resources of cellular communication on the one hand, and on the other hand, the D2D communication beam can be configured by the network device. In this way, the spectrum utilization rate can be improved, and the interference of D2D communication to cellular communication can be reduced or even avoided.
  • the interference of the first target beam to the third device is lower than the first threshold, or the interference of the first target beam to the network device is lower than the second threshold. Limit.
  • the interference of the first target beam to the third device being lower than the first threshold value means that the beam quality of the first target beam measured by the third device is lower than the first threshold value, which is also referred to as: The beam interference of the first target beam is lower than the first threshold value.
  • the beam quality of the first target beam is better. For example, the higher the power of the beam, the higher the power of the first target beam.
  • one or more of beam quality or beam interference can be characterized by the power of the beam, for example, it can be characterized by a reference signal, such as a beam reference signal or the received power of a beamformed channel state information reference signal To characterize, for example, the average value of the signal power received on all resource elements REs in the symbol carrying the reference signal.
  • a reference signal such as a beam reference signal or the received power of a beamformed channel state information reference signal
  • One or more of beam quality or beam interference may also be characterized in other ways, such as some methods in the prior art, which are not limited here.
  • the method further includes: the network device determines a second target beam, where the second target beam is the beam used by the network device when transmitting to the third device on the target transmission resource Or, the second target beam is a beam used by the third device when sending to the network device on the target transmission resource.
  • D2D communication and cellular communication can reuse both the uplink time-frequency resources of cellular communication and the downlink frequency resources of cellular communication, and the spectrum utilization rate is relatively high.
  • the network device determines the beam used for cellular communication (the scenario of multiplexing downlink time-frequency resources), or the network device configures the beam used for cellular communication to the third device (the scenario of multiplexing uplink time-frequency resources), It is beneficial to reduce or even avoid the interference caused by cellular communication to D2D communication.
  • the method may further include: the network device sends second beam indication information to the third device, where the second beam indication information is used to indicate the second target beam.
  • the network device also needs to notify the third device of the second target beam used for cellular communication, so that the third device uses the second target beam to perform uplink Communication.
  • the method before the network device determines the first target beam, the method further includes: the network device receives the first beam measurement report and the second beam measurement report to determine the first target beam. Target beam.
  • the first beam measurement report is determined by the second device by measuring the first measurement signal sent by the first device
  • the second beam measurement report is determined by the third device by measuring the first measurement signal sent by the first device.
  • the network device determining the first target beam includes: the network device determines the first target beam according to the first beam measurement report and the second beam measurement report.
  • the first beam measurement report includes available beam information and/or unavailable beam information
  • the second beam measurement report includes interference beam information and/or non-interference beam information.
  • the first target beam belongs to the available beam indicated by the available beam information and does not belong to the interference beam indicated by the interference beam information; or, the first target beam belongs to the available beam indicated by the available beam information and belongs to the non-interference beam information.
  • the first target beam does not belong to the unavailable beam indicated by the unavailable beam information, and does not belong to the interference beam indicated by the interference beam information; or, the first target beam does not belong to the unavailable beam information indicated
  • the unusable beams belong to the non-interfering beams indicated by the non-interfering beam information.
  • an available beam may refer to a beam whose beam quality is greater than a preset threshold value
  • an unavailable beam may refer to a beam whose beam quality is not greater than (ie, less than or equal to) the preset threshold value
  • an interference beam may refer to a beam whose beam interference is greater than a preset threshold value
  • a non-interfering beam may refer to a beam whose beam interference is not greater than the preset threshold value.
  • the network device can schedule the first device to reuse downlink time-frequency resources of cellular communication.
  • the second device and the third device can respectively measure the measurement signal sent by the first device and respectively report the beam measurement report.
  • the network device can be based on the available and/or unavailable beams of D2D communication and the interference beam and/or communication
  • the non-interfering beam is used to configure the beam that is ultimately used for D2D communication (that is, the first target beam) for the second device. This can improve spectrum utilization on the one hand, and reduce or avoid interference caused by D2D communication to cellular communications on the other hand.
  • the method before the network device receives the first beam measurement report and the second beam measurement report, the method further includes: the network device sends the first indication information to the first device, And send second indication information to the second device and the third device.
  • the first indication information is used to indicate the transmission resource of the first measurement signal
  • the transmission resource of the first measurement signal is used for the first device to send the first measurement signal
  • the second indication information is used to indicate the detection resource of the first measurement signal.
  • the detection resource of the first measurement signal is used by the second device and the third device to measure the first measurement signal sent by the first device.
  • the first device may send the first measurement signal based on the first indication information.
  • the second device and the third device may measure the first measurement signal based on the second indication information, so that the second device may obtain the first beam measurement report, and the third device may obtain the second beam measurement report.
  • the method before the network device determines the second target beam, the method further includes: the network device receives the third beam measurement report and the fourth beam measurement report to determine the second target beam. Target beam.
  • the third beam measurement report is determined by the third device by measuring the second measurement signal sent by the network device
  • the fourth beam measurement report is determined by the second device by measuring the second measurement signal sent by the network device.
  • the network device determining the second target beam includes: the network device determining the second target beam according to the third beam measurement report and the fourth beam measurement report.
  • the third beam measurement report includes available beam information and/or unavailable beam information
  • the fourth beam measurement report includes interference beam information and/or non-interference beam information.
  • the second target beam belongs to the available beam indicated by the available beam information and does not belong to the interference beam indicated by the interference beam information; or, the second target beam belongs to the available beam indicated by the available beam information and belongs to the non-interfering beam information.
  • the second target beam does not belong to the unusable beam indicated by the unavailable beam information, and does not belong to the interference beam indicated by the interference beam information; or, the second target beam does not belong to the unavailable beam information indicated
  • the unusable beams belong to the non-interfering beams indicated by the non-interfering beam information.
  • the network device can schedule the first device to reuse downlink resources of cellular communication.
  • the second device and the third device can respectively measure the measurement signals sent by the network device and report the beam measurement report respectively.
  • the network device can be based on the available and/or unavailable beams of cellular communication and the interference beams and/or interference beams of D2D communication.
  • the non-interfering beam determines the beam that is finally used for cellular communication (that is, the second target beam). On the one hand, this can improve spectrum utilization, and on the other hand, it is beneficial to reduce or avoid the interference caused by cellular communication to D2D communication.
  • the method before the network device determines the first target beam, the method further includes: the network device receives the first beam measurement report and the first positioning information to determine the first target beam , Where the first beam measurement report is determined by the second device by measuring the first measurement signal sent by the first device, and the first positioning information is location information of the second device.
  • the network device determining the first target beam includes: the network device determining the first target beam according to the first beam measurement report, the first positioning information, and the location information of the third device.
  • the network device can learn the position of the third device relative to the second device according to the first positioning information and the location information of the third device, so that the first target beam can be determined in combination with the first beam measurement report.
  • the first target beam belongs to the available beam indicated by the first beam measurement report, and the first target beam does not point to the third device.
  • the first target beam does not belong to the unavailable beam indicated in the first beam measurement report, and the first target beam does not point to the third device.
  • the network device can schedule the first device to reuse the downlink time-frequency resources of cellular communication.
  • the second device measures the measurement signal sent by the first device, reports a beam measurement report, and reports its location information.
  • the network device may configure a beam (that is, the first target beam) that is ultimately used for D2D communication for the second device based on the beam measurement report reported by the second device, the location information of the second device, and the location information of the third device.
  • the method before the network device receives the first beam measurement report, the method further includes: the network device sends the first indication information to the first device, and sends the second device to the second device. 2. Instruction information.
  • the first indication information is used to indicate the transmission resource of the first measurement signal
  • the transmission resource of the first measurement signal is used for the first device to send the first measurement signal
  • the second indication information is used to indicate the detection resource of the first measurement signal.
  • the detection resource of the first measurement signal is used by the second device to measure the first measurement signal sent by the first device.
  • the method before the network device determines the second target beam, the method further includes: the network device receives the third beam measurement report and the first positioning information to determine the second target beam , Where the third beam measurement report is determined by the third device by measuring the second measurement signal sent by the network device, and the first positioning information is location information of the second device.
  • the network device determining the second target beam includes: the network device determining the second target beam according to the third beam measurement report, the first positioning information, and the location information of the third device.
  • the network device can learn the position of the third device relative to the second device according to the first positioning information and the position information of the third device, so that the second target beam can be determined in combination with the third beam measurement report.
  • the second target beam belongs to the available beam indicated by the third beam measurement report, and the second target beam does not point to the second device.
  • the second target beam does not belong to the unavailable beam indicated by the third beam measurement report, and the second target beam does not point to the second device.
  • the first device can multiplex the downlink time-frequency resources of cellular communication to transmit to the second device.
  • the third device can measure the measurement signal sent by the network device and report the beam measurement report.
  • the network device can be based on the available and/or unavailable beams of cellular communication, the location information of the second device, and the location information of the third device, Determine the second target beam. On the one hand, this can improve spectrum utilization, and on the other hand, it is beneficial to reduce or avoid the interference caused by cellular communication to D2D communication.
  • the method before the network device determines the first target beam, the method further includes: the network device receives the first beam measurement report to determine the first target beam, where the first target beam The beam measurement report is determined by the second device by measuring the first measurement signal sent by the first device.
  • the network device determining the first target beam includes: the network device determines the first target beam according to the first beam measurement report and the measurement result obtained by the network device by measuring the first measurement signal.
  • the first beam measurement report includes available beam information and/or unavailable beam information
  • the measurement result obtained by the network device by measuring the first measurement signal includes interference beam information and/or non-interference beam information.
  • the first target beam belongs to the available beam indicated by the available beam information and does not belong to the interference beam indicated by the interference beam information; or, the first target beam belongs to the available beam indicated by the available beam information and belongs to the non-interference beam information.
  • the first target beam does not belong to the unavailable beam indicated by the unavailable beam information, and does not belong to the interference beam indicated by the interference beam information; or, the first target beam does not belong to the unavailable beam information indicated
  • the unusable beams belong to the non-interfering beams indicated by the non-interfering beam information.
  • the network device can schedule the first device to reuse the downlink time-frequency resources of cellular communication.
  • the network device may be based on the available beam information and/or unavailable beam information obtained by the second device measuring the measurement signal sent by the first device, and the interference beam or the interference beam obtained by the network device measuring the measurement signal sent by the first device. For non-interference beams, configure the first target beam to the second device. This way, on the one hand, the spectrum utilization can be improved, and on the other hand, it is beneficial to reduce or avoid the interference caused by D2D communication to cellular communication.
  • the method before the network device receives the first beam measurement report, the method further includes: the network device sends the first indication information to the first device, and sends the second device to the second device. Instructions.
  • the first indication information is used to indicate the transmission resource of the first measurement signal
  • the transmission resource of the first measurement signal is used for the first device to send the first measurement signal
  • the second indication information is used to indicate the detection resource of the first measurement signal.
  • the detection resource of the first measurement signal is used by the second device to measure the first measurement signal sent by the first device.
  • the method before the network device determines the second target beam, the method further includes: the network device receives a fifth beam measurement report sent by the second device to determine the second target beam , The fifth beam measurement report is determined by the second device by measuring the third measurement signal sent by the third device.
  • the network device determines the second target beam, including: the network device determines the available beam information according to the fifth beam measurement report and the network device by measuring the third measurement signal and / Or unavailable beam information, determine the second target beam.
  • the network device can schedule the first device to reuse the uplink time-frequency resources of cellular communication.
  • the second device and the network device can respectively measure the measurement signal sent by the third device.
  • the network device can determine the second device based on the available or/or unavailable beams of cellular communication and the interfering beams and/or non-interfering beams of D2D communication. Target beam. On the one hand, this can improve spectrum utilization, and on the other hand, it is beneficial to reduce or avoid the interference caused by cellular communication to D2D communication.
  • a communication method including: a second device receives a second measurement signal sent by a network device; the second device determines a fourth beam measurement report by measuring the second measurement signal; Send the fourth beam measurement report, so that the first device sends the fourth measurement report to the network device.
  • the first device can send the fourth measurement report sent by the second device to the network device.
  • a communication method including: a first device receives a fourth beam measurement report sent by a second device; and the first device sends a fourth beam measurement report to a network device.
  • the first device can send the fourth measurement report sent by the second device to the network device.
  • a communication method including: a first device receiving first beam indication information sent by a network device, where the first beam indication information is used to indicate a first target beam, and the first target beam is a first target beam.
  • the method may further include: the first device sends a signal to the third device through the first target beam.
  • the D2D communication beam can be configured by the network device. In this way, it can not only improve the frequency spectrum utilization, but also help to reduce or even avoid the interference of D2D communication to cellular communication.
  • the interference of the first target beam to the third device is lower than a first threshold, or the first target beam affects the network The interference of the device is lower than the second threshold value.
  • the method before the first device receives the first beam indication information sent by the network device, the method further includes: the first device receiving the first beam indication information sent by the network device The first indication information, where the first indication information is used to indicate a transmission resource of the first measurement signal; the first device sends the first measurement signal on the transmission resource of the first measurement signal.
  • the second device and the third device can obtain beam measurement reports separately by measuring the first measurement signal, and the second device and the third device can report the beam measurement report to the network device, and the network device can measure the beam according to the beam measurement report. Report, the first target beam can be determined.
  • a communication device which includes various modules or units for executing the method in the first aspect and any one of the possible implementation manners of the first aspect.
  • the communication device includes: a processing unit and a transceiving unit.
  • the processing unit is used to determine the first target beam, the first target beam is the beam used by the first device when transmitting to the second device on the target transmission resource, and the target transmission resource is the beam used for transmission between the communication device and the third device Time-frequency resources.
  • the transceiver unit is configured to send first beam indication information to the first device, and the first beam indication information is used to indicate the first target beam.
  • a communication device including a processor.
  • the processor is coupled with the memory and can be used to execute instructions in the memory to implement the foregoing first aspect and the method in any one of the possible implementation manners of the first aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication device is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip configured in a network device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device which includes various modules or units for executing the methods provided in the second aspect, the third aspect, or the fourth aspect.
  • the communication device includes: a transceiver unit.
  • the transceiver unit is used to receive the second measurement signal sent by the network device; determine the fourth beam measurement report by measuring the second measurement signal; send the fourth beam measurement report to the first device so that the first The device sends the fourth measurement report to the network device.
  • the transceiver unit is configured to receive the fourth beam measurement report sent by the second device; and send the fourth beam measurement report to the network device.
  • the transceiver unit is configured to receive first beam indication information sent by a network device, where the first beam indication information is used to indicate a first target beam, and the first target beam is the target beam of the communication device.
  • a beam used when transmitting to the second device on the transmission resource, and the target transmission resource is a time-frequency resource used when transmitting between the network device and the third device.
  • a communication device including a processor.
  • the processor is coupled with the memory and can be used to execute instructions in the memory to implement the method provided in the second aspect, the third aspect, or the fourth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication device is a terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip configured in a terminal device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit, and transmit a signal through the output circuit, so that the processor executes any one of the first aspect to the fourth aspect and the first aspect to the fourth aspect. The method in the way.
  • the above-mentioned processor can be one or more chips
  • the input circuit can be an input pin
  • the output circuit can be an output pin
  • the processing circuit can be a transistor, a gate circuit, a flip-flop, and various logic circuits, etc.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to the transmitter and transmitted by the transmitter
  • the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, receive signals through a receiver, and transmit signals through a transmitter, so as to implement any one of the first to fourth aspects and any one of the first to fourth aspects. In the method.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor may be provided separately.
  • the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting mode of the memory and the processor.
  • ROM read only memory
  • sending instruction information may be a process of outputting instruction information from the processor
  • receiving instruction information may be a process of receiving instruction information by the processor.
  • the data output by the processor can be output to the transmitter, and the input data received by the processor can come from the receiver.
  • the transmitter and receiver can be collectively referred to as a transceiver.
  • the processing device in the above tenth aspect may be one or more chips.
  • the processor in the processing device can be implemented by hardware or software.
  • the processor may be a logic circuit, integrated circuit, etc.; when implemented by software, the processor may be a general-purpose processor, which is implemented by reading the software code stored in the memory, and the memory may Integrated in the processor, can be located outside the processor, and exist independently.
  • a computer program product includes: a computer program (also called code, or instruction), which when the computer program is executed, causes the computer to execute the first aspect to the The fourth aspect and the method in any one of the possible implementation manners of the first to fourth aspects.
  • a computer program also called code, or instruction
  • a computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes the above-mentioned first aspect to The fourth aspect and the method in any one of the possible implementation manners of the first to fourth aspects.
  • a computer program also called code, or instruction
  • a communication system including the aforementioned network device, the first device, the second device, and the third device.
  • Figure 1 is a schematic diagram of a communication system applied to this application
  • Fig. 2 is a schematic flowchart of a communication method provided by the present application.
  • Fig. 3 is a schematic diagram of a communication method provided by the present application.
  • Fig. 4 is a schematic flowchart of a communication method provided by the present application.
  • Fig. 5 is a schematic diagram of a communication method provided by the present application.
  • Fig. 6 is a schematic flowchart of a communication method provided by the present application.
  • Fig. 7 is a schematic diagram of a communication method provided by the present application.
  • Fig. 8 is a schematic flowchart of a communication method provided by the present application.
  • FIG. 9 is a schematic flowchart of another communication method provided by the present application.
  • FIG. 10 is a schematic diagram of a communication method provided by this application.
  • FIG. 11 is a schematic flowchart of a communication method provided by this application.
  • FIG. 12 is a schematic diagram of a communication method provided by this application.
  • FIG. 13 is a schematic flowchart of a communication method provided by this application.
  • FIG. 14 is a schematic diagram of a communication method provided by this application.
  • FIG. 15 is a schematic flowchart of a communication method provided by this application.
  • Fig. 16 is a schematic block diagram of a communication device provided by the present application.
  • FIG. 17 is a schematic diagram of the structure of a network device provided by this application.
  • FIG. 18 is a schematic diagram of the structure of the terminal device provided by the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G future 5th generation
  • NR new wireless
  • the first device, the second device, and the third device in the embodiments of the present application may be terminal devices, may also be chips configured in the terminal device, or may be circuits or circuit modules in the terminal device.
  • Terminal equipment can refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user agent or User device.
  • the terminal equipment can also be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), with wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, roadside units, wearable devices, terminal devices in the future 5G network, or the public land mobile network that will evolve in the future (public land mobile network,
  • the terminal equipment in the PLMN is not limited in the embodiment of the present application.
  • the network device in the embodiment of the present application may be any device with a wireless transceiving function, may also be a chip configured in the device, or may be a circuit or a circuit module in the device.
  • This equipment includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC) , Base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP), etc., can also be 5G, such as NR ,
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU for short).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) The function of the layer.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (physical, PHY) layer.
  • RLC radio link control
  • MAC medium access control
  • PHY physical layer
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • This application can be applied to a variety of application scenarios, such as D2D, Relay, Mesh, Integrated Access & Backhaul (IAB), Vehicle to Everything (V2X), UE collaboration, high-frequency transmission, industrial scenarios, robot collaboration, Internet of Things and other scenarios.
  • application scenarios such as D2D, Relay, Mesh, Integrated Access & Backhaul (IAB), Vehicle to Everything (V2X), UE collaboration, high-frequency transmission, industrial scenarios, robot collaboration, Internet of Things and other scenarios.
  • the application will be introduced below by taking the first device, the second device, and the third device as the UE, and the network device as the base station as examples.
  • the UE can be replaced with other forms of terminal equipment (or chips or circuits in the terminal equipment), such as vehicle-mounted equipment, wearable equipment, etc.
  • the base station can also be replaced with other forms of network equipment, such as Chip or circuit in gNB, eNodeB, eNodeB, etc.
  • Fig. 1 is a schematic diagram of a communication system applied to this application.
  • the communication system includes at least one base station (e.g., base station 110) and multiple UEs (e.g., UE120, UE130, and UE140).
  • the multiple UEs include at least two UEs that can be used for D2D communication (e.g., UE120 and UE130) and at least one UE that can be used for cellular communications (e.g., UE140).
  • D2D communication refers to direct communication between two UEs through a sidelink or PC5 port.
  • a UE performing D2D communication is hereinafter referred to as a D2D UE, where the D2D UE as the transmitting end is the first device, hereinafter referred to as the D2D originating UE, and the D2D UE as the receiving end is the second device, hereinafter referred to as the D2D receiving UE.
  • the D2D UE may also have a cellular communication function. If there is a communication requirement with the base station, the D2D UE may also perform cellular communication.
  • Cellular communication refers to the communication between the UE and the base station through downlink (downlink) or uplink (uplink).
  • the UE performing cellular communication is a third device, which is referred to herein as a cellular UE, and the cellular UE has the function of performing cellular downlink or uplink communication with the base station.
  • the cellular UE may also have a D2D communication function. If there is a communication requirement with other D2D UEs, the cellular UE may also perform D2D communication with other D2D UEs.
  • the D2D originating UE multiplexes the uplink resources of cellular communication and transmits to the D2D receiving UE, it can only use the frequency division duplex (FDD) system uplink or the time division duplex (TDD) uplink
  • FDD frequency division duplex
  • TDD time division duplex
  • the base station cannot obtain the channel state information between the D2D UEs, and can only obtain the channel state information between the D2D UEs.
  • the D2D UE and the cellular UE that perform resource multiplexing respectively use beamforming technology according to their respective measured channel qualities.
  • the D2D communication beam and the cellular communication beam inevitably cause interference with each other.
  • this application provides a communication method that not only allows D2D communication and cellular communication to reuse cellular communication uplink resources, but also allows D2D communication and cellular communication to reuse cellular communication downlink resources.
  • it can be
  • the base station configures the beam for D2D communication. In this way, the spectrum utilization rate can be improved, and the interference of the D2D communication to the cellular communication and/or the interference of the cellular communication to the D2D communication can be reduced or even avoided.
  • the base station can configure beams that can be used for D2D communication and will not cause interference to cellular UEs to the D2D originating UE, so that when the D2D originating UE uses the beam configured by the base station to transmit, it can ensure the reception success rate of the D2D receiving UE. It can also avoid causing interference to cellular UEs.
  • a beam can be understood as a spatial resource, or can refer to a transmission or reception precoding vector with energy transmission directivity, and the transmission or reception precoding vector can be identified by index information.
  • the energy transmission directivity may refer to a signal that has been pre-encoded by the pre-encoding vector within a certain spatial position and has better received power, such as meeting the signal-to-noise ratio of receiving demodulation, etc.; the energy transmission Directivity can also mean that the same signal sent from different spatial locations received through the precoding vector has different received power.
  • the same communication device may have different precoding vectors, and different devices may also have different precoding vectors, that is, corresponding to different beams.
  • a communication device can use one or more of multiple different precoding vectors at the same time, that is, one or more beams can be formed at the same time.
  • the same beam can mean that the information of the beam is the same, or it can mean that the beam has the same spatial resources.
  • the same beam can also cover resources with a quasi co-location (QCL) relationship or a spatial reference relationship.
  • QCL quasi co-location
  • the information of the beam can be identified by index information.
  • the index information may correspond to the resource identity (ID) of the configuration terminal device (such as user equipment UE), for example, the index information may correspond to the configured channel state information reference signal (channel state information reference signal, The ID or resource of the CSI-RS may also correspond to the ID or resource of the configured uplink sounding reference signal (SRS).
  • the index information may be index information that is displayed or implicitly carried by a signal or channel carried by a beam.
  • the index information may be a synchronization signal sent by a beam or a broadcast channel indicating the index of the beam. information. How the specific beam information is indicated is not limited in the embodiment of this application.
  • Fig. 2 is a schematic flowchart of a communication method provided by the present application. As shown in FIG. 2, the method 200 includes S210 and S220. Hereinafter, each step will be described in detail.
  • the base station determines the first target beam.
  • the first target beam is a beam used when the D2D originating UE transmits to the D2D receiving UE on the target transmission resource
  • the target transmission resource is a time-frequency resource used during transmission between the base station and the cellular UE. That is, the first target beam is the beam configured by the base station for the D2D originating UE when the D2D originating UE multiplexes the time-frequency resources of cellular communication for D2D communication.
  • the target transmission resource may be an uplink time-frequency resource (abbreviated as: uplink resource), or a downlink time-frequency resource (abbreviated as: downlink resource).
  • D2D communication can use the uplink resources of cellular communication, that is, the time-frequency resources used when the cellular UE transmits to the base station; D2D communication can also use the downlink resources of cellular communication, that is, the time when the base station transmits to the cellular UE. Frequency resources.
  • one or more of the downlink subframes/slots/symbols used in the time division duplex transmission mode and the downlink frequency domain resources used in the frequency division duplex transmission mode may be collectively referred to as downlink resources.
  • one or more of the uplink subframes/slots/symbols used in time division duplex transmission and the uplink frequency domain resources used in frequency division duplex transmission can be collectively referred to as uplink resources.
  • the base station sends first beam indication information to the D2D originating UE, where the first beam indication information is used to indicate the first target beam.
  • the first target beam includes one or more beams.
  • the D2D originating UE receives the first beam indication information, and can determine the first target beam according to the first beam indication information. After that, the D2D originating UE can use the first target beam on the target transmission resource to transmit to the D2D receiving UE.
  • the communication method provided by the present application not only allows D2D communication to reuse cellular communication uplink resources, but also allows D2D communication to reuse cellular communication downlink resources.
  • the base station can configure D2D communication beams. In this way, the spectrum utilization rate can be improved, and the interference of D2D communication to cellular communication can be reduced or even avoided.
  • FIG. 2 The method shown in FIG. 2 will be described in detail below in conjunction with FIG. 3 to FIG. 8.
  • Fig. 3 is a schematic diagram of a communication method provided by the present application. This method can be applied to scenarios where D2D communication and cellular communication multiplex the downlink resources of cellular communication.
  • the D2D originating UE sends a measurement signal
  • the D2D receiving UE can obtain the available beam information and/or unavailable beam information of the D2D communication by measuring the measurement signal, and the obtained beam
  • the information is reported to the base station.
  • the cellular UE can obtain interference beam information and/or non-interference beam information by measuring the measurement signal, and report the obtained beam information to the base station.
  • the base station may determine the first target beam according to the beam information reported by the D2D receiving UE and the cellular UE.
  • FIG. 4 is an exemplary flow chart of the communication method 300 provided by the present application. The steps shown in FIG. 4 will be described below.
  • the base station configures a downlink resource (that is, an example of a target transmission resource) for the cellular UE, and schedules the D2D originating UE to perform D2D transmission on the downlink resource.
  • a downlink resource that is, an example of a target transmission resource
  • the base station may send the first configuration information to the cellular UE, and send the second configuration information to the D2D originating UE.
  • the cellular UE receives the first configuration information
  • the D2D originating UE receives the second configuration information.
  • the first configuration information is used to configure the downlink resource for the cellular UE
  • the second configuration information is used to configure the downlink resource for the D2D originating UE.
  • the base station can configure the transmission resource of the measurement signal, the detection resource of the measurement signal, the report resource of the beam measurement report, and the report parameter. See S302 to S304 for details. It should be understood that this application does not limit the configuration of measurement signal transmission resources, measurement signal detection resources, beam measurement report reporting resources, and the order of reporting parameters, nor does it limit the configuration of the same type of parameters (for example, measurement signal detection resources)
  • the configuration sequence of the D2D receiving end UE and the cellular UE can be achieved through one message, or more than one message.
  • the base station configures the transmission resource of the first measurement signal to the D2D originating UE.
  • the base station may send the first indication information to the D2D originating UE, and the first indication information may indicate the transmission resource of the first measurement.
  • the measurement signal in this application may be a beam reference signal (BRS) or a beamformed channel state
  • BRS beam reference signal
  • the information reference signal channel state information reference signal, CSI-RS
  • CSI-RS channel state information reference signal
  • the first indication information may indicate multiple measurement signal resources.
  • the first indication information may be multiple CSI-RS resource indicators (CSI-RS resource indicators, CRIs), and each CRI may indicate one CSI-RS resource.
  • the D2D originating UE sending the first measurement signal actually means that the D2D originating UE sends the measurement signal according to the multiple measurement signal resources.
  • a measurement signal resource may be regarded as a beam, and the information used to indicate the measurement signal resource (such as the index of the measurement signal resource) may also be regarded as the information of the beam represented by the measurement signal resource.
  • the information used to indicate the measurement signal resource may also have a corresponding relationship with the information of the beam represented by the measurement signal resource, such as a synchronization signal block index (SSB index).
  • SSB index synchronization signal block index
  • the synchronization signal block may include a primary synchronization signal, a secondary synchronization signal and a physical broadcast channel.
  • the base station configures the detection resource of the first measurement signal, the report resource of the measurement report, and the report parameter to the D2D receiving UE and the cellular UE.
  • the base station configures the detection resources of the first measurement signal
  • the base station may send second indication information to the D2D receiving end UE and the cellular UE, the second indication information indicates the detection resource of the first measurement signal, and the detection resource of the first measurement signal is used for the D2D receiving end UE and the cellular UE pair
  • the D2D originator UE sends the first measurement signal for measurement.
  • the second indication information is the same as the first indication information.
  • the first indication information is multiple CRIs
  • the second indication information is also the multiple CRIs.
  • the base station configures the reporting resources of the measurement report
  • the base station may send the first reported resource information to the D2D receiving end UE, and send the second reported resource information to the cellular UE.
  • the first reported resource information indicates the first reported resource
  • the D2D receiving end UE may report the beam measurement report obtained by measuring the first measurement signal to the base station on the first reported resource.
  • the second reported resource information indicates the second reported resource
  • the cellular UE may report the beam measurement report obtained by measuring the first measurement signal to the base station on the second reported resource.
  • any one of measurement signal transmission resources, measurement signal detection resources, and measurement report reporting resources can be used by the base station through downlink control information (DCI) and downlink data in the downlink control channel.
  • DCI downlink control information
  • RRC radio resource control
  • MAC CE media access control control element
  • the measurement signal here is a general term, which may be the first measurement signal, or the second measurement signal, the third measurement signal, etc. hereinafter.
  • the downlink control channel may be, for example, a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH) or other types of downlink control channels.
  • the downlink data channel may be, for example, a physical downlink shared channel (PDSCH) or other types of downlink data channels.
  • any one of the transmission resource of the measurement signal (such as the first measurement signal, the second measurement signal, etc.), the detection resource of the measurement signal, and the reporting resource of the measurement report can also be determined by
  • the corresponding UE is determined by itself from the resource pool, and does not need to be configured by the base station.
  • the transmission resource of the first measurement signal may be determined by the D2D originating UE from the resource pool.
  • the resource pool can be pre-configured or sent by the base station to the UE in the form of broadcast.
  • the relevant information that needs to be sent by the base station to the D2D receiving end UE can be directly sent by the base station to the D2D receiving end.
  • the end UE may also be first sent by the base station to the D2D originating UE, and then forwarded by the D2D originating UE to the D2D receiving UE.
  • relevant information that needs to be sent by the D2D receiving UE to the base station such as the beam measurement report sent by the D2D receiving UE in the following text, can be directly sent to the base station by the D2D receiving UE, or it can be sent to the base station by the D2D receiving UE first.
  • the D2D originating UE is then forwarded to the base station by the D2D originating UE.
  • the base station may send the first reported parameter information to the D2D receiving end UE, and send the second reported parameter information to the cellular UE.
  • the first reported parameter information is used by the D2D receiving end UE to determine the content that needs to be reported after measuring the first measurement signal.
  • the second reported parameter information is used by the cellular UE to determine the content that needs to be reported after measuring the first measurement signal.
  • the first reported parameter information may include one or more of the following: beam attribute information; beam quality threshold; number of beams or maximum number of beams.
  • the beam attribute information is used to indicate whether the D2D receiving UE needs to report a beam with a better beam quality, or a beam with a poor beam quality, or both.
  • the D2D receiving UE can determine whether it needs to report a beam with a better beam quality, a beam with a poor beam quality, or both.
  • the beam reported by the terminal device may specifically be that the terminal device reports the CRI.
  • the beam quality can be measured by one or more of the parameters such as reference signal receiving power (reference signal receiving power, RSRP) and reference signal receiving quality (reference signal receiving quality, RSRQ).
  • the beam quality threshold value may be one or more of the threshold values such as RSRP and RSRQ.
  • the D2D receiving UE reports a beam whose corresponding beam quality (such as RSRP or RSRQ) is greater than the beam quality threshold, or reports a beam whose corresponding beam quality is not greater than the beam quality threshold. Or, report both of the foregoing, and specify whether each beam is specifically a beam with a beam quality greater than a beam quality threshold or a beam with a beam quality not greater than the beam quality threshold.
  • the number of beams refers to the number of beams with better beam quality that need to be fed back by the D2D receiving UE, or the number of beams with poor beam quality that needs to be fed back, or the number of beams with better beam quality that needs to be fed back, and the beam quality is better.
  • the number of poor beams For example, assuming that the number of beams here is N, then if the base station instructs the D2D receiving end UE to feed back beams with better beam quality, the D2D receiving end UE feeds back the N beams with the best beam quality; if the base station instructs the D2D receiving end The UE feeds back beams with poor beam quality, and the D2D receiving UE feeds back the N beams with the worst beam quality. Exemplarily, assuming that the number of beams here is (P, Q), then the D2D receiving UE feeds back P beams with the best beam quality and Q beams with the worst beam quality.
  • the maximum number of beams refers to the maximum number of beams that are allowed to be fed back by the D2D receiving UE. For example, if the base station instructs the D2D receiving end UE to feed back beams with better beam quality, and the maximum number of beams is M, then the D2D receiving end UE can only feed back M beams with better beam quality at most.
  • the corresponding beam quality is greater than the beam quality threshold, and the D2D receiving end UE feedbacks based on the number of beams or the maximum number of beams to feedback one or more beams with the best beam quality. Called: Available beam.
  • the corresponding beam quality is not greater than the beam quality threshold, and the D2D receiving UE based on the number of beams or the maximum number of beams feedback beam quality one or more beams with the worst beam quality can be called: unavailable beam .
  • the first reported parameter information may only include two of the three of the beam attribute information, the beam quality threshold, and the number of beams (or the maximum number of beams).
  • the first reported parameter information may only include the beam attribute information and the number of beams (or the maximum number of beams).
  • the D2D receiving UE reports the required number of beams with the largest or smallest beam quality corresponding to the instructions of the beam attribute information.
  • the first reported parameter information may only include the beam attribute information and the beam quality threshold. At this time, the D2D receiving end UE reports the beam with the corresponding beam quality greater than or not greater than the beam quality threshold according to the indication of the beam attribute information. .
  • the second reported parameter information is similar to the content included in the first reported parameter information.
  • the second reported parameter information may include one or more of the following: beam attribute information; beam interference threshold; number of beams or maximum number of beams.
  • the meaning of the beam attribute information is similar to the meaning of the beam attribute information in the first reported parameter information. For details, reference may be made to the above description.
  • the beam interference threshold may be one or more of the thresholds such as RSRP and RSRQ.
  • the D2D receiving UE reports a beam whose corresponding beam interference (for example, RSRP or RSRQ) is greater than the beam interference threshold, or reports a beam whose corresponding beam interference is not greater than the beam interference threshold. Or report both of the foregoing, and specify whether each beam is specifically a beam whose beam interference is greater than the beam interference threshold or a beam whose beam interference is not greater than the beam interference threshold.
  • the beam interference threshold may be equal to or different from the wave speed quality threshold, which is not limited in this application.
  • the meaning of the number of beams is similar to the meaning of the number of beams in the first reported parameter information. For details, reference may be made to the above description. The meaning of the maximum number of beams is also similar, and you can refer to the above description.
  • the corresponding beam interference is greater than the beam interference threshold, and the one or more beams with the largest beam interference fed back by the cellular UE based on the number of beams or the maximum number of beams can all be called: interference beams .
  • the corresponding beam interference is not greater than the beam interference threshold, and the one or more beams with the smallest beam interference fed back by the cellular UE based on the number of beams or the maximum number of beams can all be referred to as non-interference beams.
  • the base station, D2D receiving end UE, and cellular UE may also pre-arrange the content of the reported parameter information (for example, the first reported parameter information, the second reported parameter information, the third reported parameter information below, etc.) One or more of.
  • the base station may agree on the beam quality threshold with the D2D receiving end UE, and pre-appoint the beam interference threshold with the cellular UE.
  • the base station may pre-appoint the number of beams or the maximum number of beams with the D2D receiving UE and the cellular UE.
  • report parameter information for example, report parameter information #1, report parameter information #2, report parameter information #3 below, etc.
  • CSI-RS signal state information reference signal
  • the reporting settings can also be sent in other ways, such as sending through RRC signaling, which is not limited in this application.
  • the content of the reported parameter information may also be notified separately through multiple pieces of signaling.
  • the beam attribute information in the first reported parameter information may be carried by the CSI-RS report configuration, and the beam quality threshold may be carried by RRC signaling, and vice versa, which is not limited in the embodiment of the present application.
  • the D2D originating UE sends the first measurement signal
  • the D2D receiving UE and the cellular UE measure the first measurement signal and report a beam measurement report.
  • the base station can determine the first target beam according to the beam measurement reports reported by the D2D receiving UE and the cellular UE. See S304 to S306 for details.
  • the D2D originating UE sends the first measurement signal on the transmission resource of the first measurement signal.
  • the D2D receiving UE and the cellular UE measure the first measurement signal on the detection resource of the first measurement signal.
  • the D2D receiving UE measures the first measurement signal, and based on the first reported parameter information, can determine the first beam measurement report.
  • the cellular UE can determine the second beam measurement report based on the second reported parameter information by measuring the first measurement signal.
  • the first beam measurement report includes available beam information and/or unavailable beam information.
  • the first beam measurement report includes available beam information and unavailable beam information, or may include only one of available beam information and unavailable beam information.
  • the available beam information is used to indicate an available beam
  • the unavailable beam information is used to indicate an unavailable beam.
  • the second beam measurement report includes interference beam information and/or non-interference beam information.
  • the interference beam information is used to indicate the interference beam
  • the non-interference beam is used to indicate the non-interference beam.
  • the D2D receiving end UE sends a first beam measurement report to the base station, and the cellular UE sends a second beam measurement report to the base station.
  • the base station determines the first target beam according to the first beam measurement report and the second beam measurement report.
  • the first target beam belongs to the available beam indicated by the first beam measurement report and does not belong to the interference beam indicated by the second beam measurement report.
  • the first target beam belongs to the available beam indicated by the first beam measurement report and belongs to the non-interfering beam indicated by the second beam measurement report.
  • the first target beam does not belong to the unusable beam indicated by the first beam measurement report and does not belong to the interference beam indicated by the second beam measurement report.
  • the first target beam does not belong to the unusable beam indicated by the first beam measurement report and belongs to the non-interfering beam indicated by the second beam measurement report.
  • the first target beam selected by the base station can be used for D2D communication without causing interference to cellular communication.
  • the first target beam selected by the base station can be used for D2D communication and the interference to the cellular UE is lower than the first threshold.
  • the base station sends the first beam indication information to the D2D originating UE.
  • the first beam indication information is used to indicate the first target beam
  • the first target beam may include one or more beams.
  • the base station can schedule the D2D originating UE to reuse the downlink resources of cellular communication.
  • the D2D receiving UE and the cellular UE can respectively measure the measurement signals sent by the D2D originating UE and report beam measurement reports respectively.
  • the base station can be based on the available or unavailable beams of D2D communication and the interfering beams or non-interfering beams of cellular communication,
  • the D2D originating UE is configured with a beam that is finally used for D2D communication (ie, the first target beam). This can improve spectrum utilization on the one hand, and reduce or avoid interference caused by D2D communication to cellular communications on the other hand.
  • Fig. 5 is a schematic diagram of a communication method provided by the present application. This method can be applied to scenarios where D2D communication and cellular communication multiplex the downlink resources of cellular communication.
  • the D2D originating UE sends a measurement signal
  • the D2D receiving UE can obtain the available beam information and/or unavailable beam information of the D2D communication by measuring the measurement signal.
  • the D2D receiving UE can determine its own location information by measuring the positioning reference signal sent by the D2D sending UE or the base station.
  • the D2D receiving end UE reports available beam information and/or unavailable beam information and its own location information to the base station.
  • the base station can report the available beam information and/or unavailable beam information reported by the D2D receiving end UE and the location information of the D2D receiving end UE.
  • the location information of the cellular UE to determine the first target beam.
  • FIG. 6 is an exemplary flowchart of a communication method 400 provided by the present application. The steps shown in FIG. 6 will be described below.
  • the base station configures a downlink resource (that is, an example of a target transmission resource) for a cellular UE, and schedules the D2D originating UE to perform sidelink transmission on the downlink resource.
  • a downlink resource that is, an example of a target transmission resource
  • This step is the same as S301, and you can refer to the description of S301 above.
  • the base station configures the transmission resource of the first measurement signal to the D2D originating UE.
  • This step is the same as S302, and you can refer to the description of S302 above.
  • the base station configures the detection resource of the first measurement signal, the report resource of the measurement report, and the report parameter to the D2D receiving end UE.
  • the D2D originating UE sends the first measurement signal on the transmission resource of the first measurement signal.
  • the D2D receiving end UE measures the first measurement signal, and determines the first beam measurement report based on the first reported parameter information.
  • the first beam measurement report as described above, may include available beam information and/or unavailable beam information.
  • the D2D receiving end UE sends the first beam measurement report and the first positioning information to the base station.
  • the first positioning information is the location information of the D2D receiving end UE.
  • the D2D receiving UE may measure the first positioning information based on the positioning reference signals (positioning reference signals, PRS) sent by the D2D sending UE or the positioning reference signals sent by the base station.
  • PRS positioning reference signals
  • the D2D receiving end UE measures the positioning reference signal, and how to determine the location information of the D2D receiving end UE according to the measurement result reference may be made to the prior art.
  • the first positioning information may also be obtained through other positioning methods, which is not limited in this application.
  • the base station determines the first target beam according to the first beam measurement report, the location information of the D2D receiving UE, and the location information of the cellular UE.
  • the base station can learn the position of the cellular UE relative to the D2D receiving UE according to the location information of the D2D receiving UE and the location information of the cellular UE, so that the first target beam can be determined in combination with the first beam measurement report.
  • the cellular UE can determine its location information by measuring the positioning reference signal sent by the base station, and can report its location information to the base station. It should be understood that the location information of the cellular UE may also be obtained by other positioning methods.
  • the first target beam belongs to the available beam indicated by the first beam measurement report, and the first target beam does not point to the cellular UE.
  • the first target beam does not belong to the unavailable beam indicated by the first beam measurement report, and the first target beam does not point to the cellular UE.
  • the base station sends the first beam indication information to the D2D originating UE.
  • the first beam indication information is used to indicate the first target beam
  • the first target beam may include one or more beams.
  • the base station can schedule the D2D originating UE to reuse the downlink resources of cellular communication.
  • the D2D receiving end UE measures the measurement signal sent by the D2D originating UE and reports the beam measurement report, and determines and reports its position information by measuring the positioning reference signal.
  • the base station can configure the D2D originating UE with beams that are ultimately used for D2D communication based on the beam measurement report reported by the D2D receiving UE, the location information of the D2D receiving UE, and the location information of the cellular UE. This way, on the one hand, the spectrum utilization can be improved, and on the other hand, it is beneficial to reduce or avoid the interference caused by D2D communication to cellular communication.
  • Fig. 7 is a schematic diagram of a communication method provided by the present application. This method can be applied to scenarios where D2D communication and cellular communication multiplex the uplink resources of cellular communication.
  • the D2D originating UE sends a measurement signal
  • the D2D receiving UE can obtain available beam information and/or unavailable beam information by measuring the measurement signal, and report the obtained beam information to Base station.
  • the base station can obtain interference beam information and/or non-interference beam information by measuring the measurement signal.
  • the base station may determine the first target beam according to its determined interference beam information and/or non-interference beam information and available beam information and/or unavailable beam information reported by the D2D receiving UE.
  • FIG. 8 is an exemplary flowchart of a communication method 500 provided by the present application. The steps shown in FIG. 5 will be described below.
  • the base station configures an uplink resource (that is, an example of a target transmission resource) for a cellular UE, and schedules a D2D originating UE to perform sidelink transmission on the downlink resource.
  • an uplink resource that is, an example of a target transmission resource
  • This step is similar to S301 and S401, except that the base station in S301 configures downlink resources, and here the base station configures uplink resources.
  • the base station configures the transmission resource of the first measurement signal to the D2D originating UE.
  • This step is the same as S302, and you can refer to the description of S302 above.
  • the base station configures the detection resource of the first measurement signal, the report resource of the measurement report, and the report parameter to the D2D receiving end UE.
  • This step is the same as S403.
  • the D2D originating UE sends the first measurement signal on the transmission resource of the first measurement signal.
  • the D2D receiving end UE sends a first beam measurement report to the base station.
  • This step is similar to S305, except that the cellular UE does not need to report a measurement report to the base station.
  • the base station determines the first target beam according to the first beam measurement report and the interference beam information and/or non-interference beam information obtained by measuring the first measurement signal by itself.
  • the first target beam belongs to the available beam and does not belong to the interference beam.
  • the first target beam belongs to an available beam and belongs to a non-interfering beam.
  • the first target beam does not belong to an unusable beam and does not belong to an interference beam.
  • the first target beam does not belong to an unusable beam and belongs to a non-interfering beam.
  • the first target beam selected by the base station can be used for D2D communication, and the first target beam will not cause interference to the reception of the base station or the interference of the first target beam to the base station is lower than that of the second target beam. Threshold value.
  • first threshold here and the second threshold described above may be equal or different.
  • the interference beam information and/or non-interference beam information obtained by the base station is similar to the interference beam information and/or non-interference beam information obtained by the cellular UE measuring the first measurement reference signal described above, and will not be described in detail here.
  • the base station sends the first beam indication information to the D2D originating UE.
  • the first beam indication information is used to indicate the first target beam
  • the first target beam may include one or more beams.
  • the base station can schedule the D2D originating UE to reuse the uplink resources of the cellular communication.
  • the base station may be based on the available beam information and/or unavailable beam information obtained by the D2D receiving UE measuring the measurement signal sent by the D2D sending UE, and the interference beam or non-interference beam obtained by the base station measuring the measurement signal sent by the D2D sending UE.
  • the D2D originating UE is configured with beams that are ultimately used for D2D communication. This way, on the one hand, the spectrum utilization can be improved, and on the other hand, it is beneficial to reduce or avoid the interference caused by D2D communication to cellular communication.
  • Fig. 9 is a schematic flowchart of a communication method provided by the present application. As shown in FIG. 9, the method 600 includes S610 and S620. Hereinafter, each step will be described in detail.
  • S610 The base station determines the second target beam.
  • the second target beam is a beam used by the cellular UE during transmission between the cellular UE and the base station on the target transmission resource, and the second target beam may include one or more beams.
  • the target transmission resource is the time-frequency resource used for transmission between the base station and the cellular UE.
  • the second target beam is a beam used by the base station when transmitting to the cellular UE on the target transmission resource.
  • the target transmission resource is an uplink resource, that is, when D2D communication and cellular communication multiplex the uplink time-frequency resource of cellular communication
  • the second target beam is the beam used by the cellular UE when transmitting to the base station on the target transmission resource.
  • the method may further include S620.
  • the base station sends second beam indication information to the cellular UE.
  • the second beam indication information is used to indicate the second target beam.
  • the cellular UE receives the second beam indication information, and the cellular UE can determine the second target beam according to the second beam indication information, so that the second target beam can be used for reception.
  • D2D communication can reuse both the uplink resources of cellular communication and the downlink resources of cellular communication, and the spectrum utilization rate is relatively high.
  • the base station determines the beam used for cellular communication (the scenario of multiplexing downlink resources), or the base station configures the beam used for cellular communication (the scenario of multiplexing uplink resources) to the cellular UE, which is beneficial to reduce or even avoid cellular Interference caused by communication to D2D communication.
  • Fig. 10 is a schematic diagram of a communication method provided by the present application. This method can be applied to scenarios where D2D communication and cellular communication multiplex the downlink resources of cellular communication.
  • the base station sends a measurement signal
  • the cellular UE can obtain available beam information and/or unavailable beam information for cellular communication by measuring the measurement signal, and report the obtained beam information to the base station .
  • the D2D receiving end UE can obtain interference beam information and/or non-interference beam information by measuring the measurement signal, and report the obtained beam information to the base station.
  • the base station may determine the second target beam according to the beam information reported by the D2D receiving UE and the cellular UE.
  • FIG. 11 is an exemplary flowchart of a communication method 700 provided by the present application. The steps shown in FIG. 11 will be described below.
  • the base station configures a downlink resource (that is, an example of a target transmission resource) to a cellular UE, and schedules a D2D originating UE to perform sidelink transmission on the downlink resource.
  • a downlink resource that is, an example of a target transmission resource
  • This step is the same as S301, and you can refer to the description of S301 above.
  • the base station can configure detection resources for measurement signals, reporting resources for beam measurement reports, and reporting parameters. See S702 to S703 for details. It should be understood that this application does not limit the detection resources of the measurement signal, the reporting resources of the beam measurement report, and the sequence of reporting parameters, nor does it limit the configuration of the same type of parameters (for example, the detection resources of the measurement signal), the D2D receiving end UE and The sequence of cellular UE configuration.
  • the base station configures the detection resource of the second measurement signal, the report resource of the measurement report, and the report parameter to the D2D receiving UE and the cellular UE.
  • the base station configures the detection resources of the second measurement signal
  • the base station may send third indication information to the D2D receiving end UE and the cellular UE, the third indication information indicates the detection resource of the second measurement signal, and the detection resource of the second measurement signal is used for the pairing of the D2D receiving end UE and the cellular UE.
  • the second measurement signal sent by the base station is measured.
  • the base station configures the reporting resources of the measurement report
  • the base station may send the third reported resource information to the cellular UE, and send the fourth reported resource information to the D2D receiving end UE.
  • the third reported resource information indicates the third reported resource
  • the cellular UE may report the beam measurement report obtained by measuring the second measurement signal to the base station on the third reported resource.
  • the fourth report resource information indicates the fourth report resource
  • the D2D receiving end UE may report the beam measurement report obtained by measuring the second measurement signal to the base station on the fourth report resource.
  • the base station may send the third reported parameter information to the cellular UE, and send the fourth reported parameter information to the D2D receiving end UE.
  • the third reported parameter information is used by the cellular UE to determine the content that needs to be reported after measuring the second measurement signal.
  • the fourth report parameter is used by the D2D receiving end UE to determine what needs to be reported after measuring the second measurement signal.
  • the base station for the base station to configure the detection resource of the second measurement signal, refer to the description of the method 300 for configuring the detection resource of the first measurement signal by the base station.
  • the third indication information may be multiple CRIs.
  • the base station configures the report resources and report parameters of the measurement report for the cellular UE. You can refer to the description of the method 300 for the base station to configure the report resources and report parameters of the measurement report for the D2D receiving UE.
  • the base station configures the report of the measurement report for the D2D receiving UE.
  • resources and reporting parameters reference may be made to the description of the reporting resources and reporting parameters for the base station to configure measurement reports for the cellular UE in the method 300.
  • the third reported parameter information may include one or more of the following: beam attribute information; beam quality threshold; number of beams or maximum number of beams.
  • the fourth reported parameter information may include one or more of the following: beam attribute information; beam interference threshold; number of beams or maximum number of beams. It should be understood that in this method, for the cellular UE, the corresponding beam quality is greater than the beam quality threshold, and the one or more beams with the best beam quality fed back by the cellular UE based on the number of beams or the maximum number of beams, Both can be called: available beams.
  • the corresponding beams whose beam quality is not greater than the beam quality threshold and the one or more beams with the worst beam quality fed back by the cellular UE based on the number of beams or the maximum number of beams can all be referred to as unusable beams.
  • the corresponding beam interference is greater than the beam interference threshold, and the D2D receiving end UE feedbacks based on the number of beams or the maximum number of beams feedback the one or more beams with the largest beam interference, all can be called: Interfering beam.
  • the corresponding beams whose beam interference is not greater than the beam interference threshold, and the one or more beams with the smallest beam interference fed back by the D2D receiving UE based on the number of beams or the maximum number of beams can all be called non-interfering beams.
  • the base station sends the second measurement signal, and the D2D receiving UE and the cellular UE measure the second measurement signal, and report a beam measurement report.
  • the base station can determine the second target beam according to the beam measurement reports reported by the D2D receiving UE and the cellular UE. See S703 to S705 for details.
  • S703 The base station sends the second measurement signal on the transmission resource of the second measurement signal.
  • the D2D receiving end UE and the cellular UE detect the second measurement signal on the detection resource of the second measurement signal.
  • the cellular UE measures the second measurement signal and determines the third beam measurement report based on the third reported parameter information.
  • the D2D receiving end UE measures the second measurement signal, and determines a fourth beam measurement report based on the fourth reported parameter information.
  • the third beam measurement report includes available beam information and/or unavailable beam information.
  • the third beam measurement report includes available beam information and unavailable beam information, or may only include the third beam measurement report including one of available beam information and unavailable beam information.
  • the available beam information is used to indicate an available beam
  • the unavailable beam information is used to indicate an unavailable beam.
  • the fourth beam measurement report includes interference beam information and/or non-interference beam information.
  • the interference beam information is used to indicate the interference beam
  • the non-interference beam is used to indicate the non-interference beam.
  • the cellular UE sends a third beam measurement report to the base station, and the D2D receiving end UE sends a fourth beam measurement report to the base station.
  • the base station determines the second target beam according to the third beam measurement report and the fourth beam measurement report.
  • the second target beam belongs to the available beam indicated by the third beam measurement report, and does not belong to the interference beam indicated by the fourth beam measurement report.
  • the second target beam belongs to the available beam indicated by the third beam measurement report, and belongs to the non-interfering beam indicated by the fourth beam measurement report.
  • the second target beam does not belong to the unusable beam indicated by the third beam measurement report, and does not belong to the interference beam indicated by the fourth beam measurement report.
  • the second target beam does not belong to the unusable beam indicated by the third beam measurement report, and belongs to the non-interfering beam indicated by the fourth beam measurement report.
  • the second target beam selected by the base station can be used for cellular communication without causing interference to D2D communication or having less interference to D2D communication.
  • the base station can schedule the D2D originating UE to reuse the downlink resources of cellular communication.
  • the D2D receiving UE and the cellular UE can measure the measurement signals sent by the base station and report the beam measurement reports respectively.
  • the base station can be based on the available and/or unavailable beams of cellular communication and the interfering and/or non-interfering beams of D2D communication.
  • the beam determines the beam that is ultimately used for cellular communication (ie, the second target beam). On the one hand, this can improve spectrum utilization, and on the other hand, it is beneficial to reduce or avoid the interference caused by cellular communication to D2D communication.
  • Fig. 12 is a schematic diagram of a communication method provided by the present application. This method can be applied to scenarios where D2D communication and cellular communication multiplex the downlink resources of cellular communication.
  • the base station sends a measurement signal, and the cellular UE can obtain available beam information and/or unavailable beam information for cellular communication by measuring the measurement signal.
  • the base station may determine the second target beam according to the beam information reported by the cellular UE, the location information of the D2D receiving UE, and the location information of the cellular UE.
  • FIG. 13 is an exemplary flowchart of a communication method 800 provided by the present application. The steps shown in FIG. 13 will be described below.
  • the base station configures a downlink resource for the cellular UE, and schedules the D2D originating UE to perform sidelink transmission on the downlink resource.
  • This step is the same as S701.
  • the base station configures the detection resource of the second measurement signal, the report resource of the measurement report, and the report parameter to the cellular UE.
  • the base station may also send the detection resource of the positioning reference signal to the D2D receiving end UE.
  • the D2D receiving UE can determine the first positioning information, that is, the location information of the D2D receiving UE, by detecting the positioning reference signal sent by the base station on the detection resource of the positioning reference signal. It should be understood that the positioning reference signal may also be sent by the D2D originating UE, which is not limited in this application.
  • the base station sends a positioning reference signal, and sends a second measurement signal on the sending resource of the second measurement signal.
  • the cellular UE sends a third beam measurement report to the base station, and the D2D receiving end UE reports the first positioning information to the base station.
  • the base station determines the second target beam according to the third beam measurement report, the location information of the D2D receiving UE, and the location information of the cellular UE.
  • the base station can learn the position of the cellular UE relative to the D2D receiving UE according to the location information of the D2D receiving UE and the location information of the cellular UE, so that the second target beam can be determined in combination with the third beam measurement report.
  • the cellular UE can determine its location information by measuring the positioning reference signal sent by the base station.
  • the second target beam belongs to the available beam indicated by the third beam measurement report, and the second target beam does not point to the D2D receiving UE.
  • the second target beam does not belong to the unavailable beam indicated by the third beam measurement report, and the second target beam does not point to the D2D receiving end UE.
  • the base station can schedule the D2D originating UE to reuse the downlink resources of cellular communication.
  • the cellular UE can measure the measurement signal sent by the base station and report the beam measurement report.
  • the base station can determine the final use based on the available and/or unavailable beams of cellular communication, the location information of the D2D receiving UE, and the location information of the cellular UE.
  • the beam for cellular communication can improve spectrum utilization, and on the other hand, it is beneficial to reduce or avoid the interference caused by cellular communication to D2D communication.
  • Fig. 14 is a schematic diagram of a communication method provided by the present application. This method can be applied to scenarios where D2D communication and cellular communication multiplex the uplink resources of cellular communication.
  • the cellular UE sends a measurement signal
  • the D2D receiving UE can obtain interference beam information and/or non-interference beam information by measuring the measurement signal
  • the base station can measure the measurement signal sent by the cellular UE. Measure to obtain available beam information and/or unavailable beam information for cellular communication.
  • the base station may determine the second target beam based on the available beam information and/or unavailable beam information and the interference beam information and/or non-interference beam information.
  • FIG. 15 is an exemplary flowchart of a communication method 900 provided by the present application. The steps shown in FIG. 15 will be described below.
  • the base station configures an uplink resource (that is, an example of a target transmission resource) for a cellular UE, and schedules a D2D originating UE to perform sidelink transmission on the downlink resource.
  • an uplink resource that is, an example of a target transmission resource
  • This step is the same as S501, please refer to S501.
  • the base station configures the transmission resource of the third measurement signal to the cellular UE.
  • the base station may send fourth indication information to the cellular UE, and the fourth indication information may indicate the transmission resource of the third measurement.
  • the configuration of the transmission resource of the third measurement signal is similar to the configuration of the transmission resource of the first measurement signal in the method 300.
  • the fourth indication information may be multiple CRIs, which will not be described in detail here.
  • the base station configures the detection resource of the third measurement signal, the report resource of the measurement report, and the report parameter to the D2D receiving end UE.
  • the base station configures the detection resources of the third measurement signal.
  • the base station may send fifth indication information to the D2D receiving end UE.
  • the fifth indication information indicates the detection resource of the third measurement signal.
  • the detection resource of the third measurement signal is used for the third measurement signal sent by the D2D receiving end UE to the cellular UE. Measure the signal for detection.
  • the base station configures the reporting resources of the measurement report
  • the base station may send fifth reported resource information to the D2D receiving end UE, the fifth reported resource information indicates the fifth reported resource, and the D2D receiving end UE may measure the third measurement signal to the base station on the fifth reported resource. Beam measurement report.
  • the base station may send fifth report parameter information to the D2D receiving end UE, and the fifth report parameter is used for the D2D receiving end UE to determine what needs to be reported after measuring the third measurement signal.
  • the base station for the base station to configure the detection resource of the third measurement signal, refer to the description of the method 300 for configuring the detection resource of the first measurement signal by the base station.
  • the fifth indication information may include multiple CRIs.
  • the base station configures the report resources and report parameters of the measurement report for the D2D receiving end UE. You can refer to the description of the method 300 for the base station to configure the report resources and report parameters of the measurement report for the cellular UE.
  • the fifth report parameter information may include the following One or more of: beam attribute information; beam interference threshold; number of beams or maximum number of beams.
  • S904 The cellular UE sends the third measurement signal on the transmission resource of the third measurement signal.
  • the D2D receiving end UE measures the third measurement signal on the detection resource of the third measurement signal.
  • the D2D receiving end UE measures the third measurement signal, and determines the fifth beam measurement report based on the fifth reported parameter information.
  • the fifth beam measurement report includes interference beam information and/or non-interference beam information.
  • the interference beam information is used to indicate the interference beam
  • the non-interference beam is used to indicate the non-interference beam.
  • the base station determines the second target beam according to the fifth beam measurement report and the available beam information and/or unavailable beam information received by measuring the third measurement signal by itself.
  • the second target beam belongs to the available beam and does not belong to the interference beam.
  • the second target beam belongs to an available beam and belongs to a non-interfering beam.
  • the second target beam does not belong to an unusable beam and does not belong to an interference beam.
  • the second target beam is not an unusable beam and belongs to a non-interfering beam.
  • the base station sends second beam indication information to the cellular UE.
  • the second beam indication information is used to indicate the second target beam, and the second target beam may include one or more beams.
  • the base station can schedule the D2D originating UE to reuse the uplink resources of the cellular communication.
  • the D2D receiving end UE and the base station can respectively measure the measurement signal sent by the cellular UE.
  • the base station can configure the cellular UE based on the available or/or unavailable beams of cellular communication and the interference beam and/or non-interference beam of D2D communication.
  • the beam ultimately used for cellular communications On the one hand, this can improve spectrum utilization, and on the other hand, it is beneficial to reduce or avoid the interference caused by cellular communication to D2D communication.
  • FIG. 16 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1000 may include a processing unit 1010 and a transceiving unit 1020.
  • the communication device 1000 may correspond to the base station in the foregoing method embodiment.
  • the processing unit 1010 is configured to determine a first target beam, the first target beam is the beam used by the first device when transmitting to the second device on the target transmission resource, and the target transmission resource is the one between the communication device 1000 and the third device.
  • the transceiver unit 1020 is configured to send first beam indication information to the first device, and the first beam indication information is used to indicate the first target beam.
  • the interference of the first target beam to the third device is lower than the first threshold, or the interference of the first target beam to the communication device 1000 is lower than the second threshold.
  • the processing unit 1010 is further configured to determine a second target beam, where the second target beam is a beam used by the communication device 1000 when transmitting to the third device on the target transmission resource, or the second target beam is the third device The beam used when transmitting to the communication device 1000 on the target transmission resource.
  • the transceiver unit 1020 is further configured to receive the first beam measurement report and the second beam measurement report to determine the first target beam.
  • the first beam measurement report is determined by the second device by measuring the first measurement signal sent by the first device
  • the second beam measurement report is determined by the third device by measuring the first measurement signal sent by the first device.
  • the processing unit 1010 is specifically configured to determine the first target beam according to the first beam measurement report and the second beam measurement report.
  • the first beam measurement report includes available beam information and/or unavailable beam information
  • the second beam measurement report includes interference beam information and/or non-interference beam information.
  • the first target beam belongs to the available beam indicated by the available beam information and does not belong to the interference beam indicated by the interference beam information; or, the first target beam belongs to the available beam indicated by the available beam information and belongs to the non-interference beam information The indicated non-interference beam; or, the first target beam does not belong to the unavailable beam indicated by the unavailable beam information, and does not belong to the interference beam indicated by the interference beam information; or, the first target beam does not belong to the unavailable beam information
  • the indicated unusable beam belongs to the non-interfering beam indicated by the non-interfering beam information.
  • the transceiver unit 1020 is further configured to send first indication information to the first device, and send second indication information to the second device and the third device.
  • the first indication information is used to indicate the transmission resource of the first measurement signal
  • the transmission resource of the first measurement signal is used for the first device to send the first measurement signal
  • the second indication information is used to indicate the detection resource of the first measurement signal.
  • the detection resource of the first measurement signal is used by the second device and the third device to measure the first measurement signal sent by the first device.
  • the transceiver unit 1020 is further configured to receive the third beam measurement report and the fourth beam measurement report to determine the second target beam.
  • the third beam measurement report is determined by the third device by measuring the second measurement signal sent by the communication device 1000
  • the fourth beam measurement report is determined by the second device by measuring the second measurement signal sent by the communication device 1000.
  • the processing unit 1010 is specifically configured to determine the second target beam according to the third beam measurement report and the fourth beam measurement report.
  • the third beam measurement report includes available beam information and/or unavailable beam information
  • the fourth beam measurement report includes interference beam information and/or non-interference beam information.
  • the second target beam belongs to the available beam indicated by the available beam information and does not belong to the interference beam indicated by the interference beam information; or, the second target beam belongs to the available beam indicated by the available beam information and belongs to the non-interference beam information The indicated non-interference beam; or, the second target beam does not belong to the unavailable beam indicated by the unavailable beam information, and does not belong to the interference beam indicated by the interference beam information; or, the second target beam does not belong to the unavailable beam information
  • the indicated unusable beam belongs to the non-interfering beam indicated by the non-interfering beam information.
  • the transceiver unit 1020 is further configured to receive the first beam measurement report and the first positioning information to determine the first target beam.
  • the first beam measurement report is determined by the second device by measuring the first measurement signal sent by the first device, and the first positioning information is location information of the second device.
  • the processing unit 1010 is specifically configured to determine the first target beam according to the first beam measurement report, the first positioning information, and the position information of the third device.
  • the transceiver unit 1020 is further configured to send first indication information to the first device, and send second indication information to the second device.
  • the first indication information is used to indicate the transmission resource of the first measurement signal
  • the transmission resource of the first measurement signal is used for the first device to send the first measurement signal
  • the second indication information is used to indicate the detection resource of the first measurement signal.
  • the detection resource of the first measurement signal is used by the second device to measure the first measurement signal sent by the first device.
  • the transceiver unit 1020 is further configured to receive the third beam measurement report and the first positioning information to determine the second target beam.
  • the third beam measurement report is determined by the third device by measuring the second measurement signal sent by the communication device 1000, and the first positioning information is the location information of the second device.
  • the processing unit 1010 is specifically configured to determine the second target beam according to the third beam measurement report, the first positioning information, and the position information of the third device.
  • the transceiver unit 1020 is further configured to receive the first beam measurement report to determine the first target beam, where the first beam measurement report is determined by the second device by measuring the first measurement signal sent by the first device.
  • the processing unit 1010 is specifically configured to determine the first target beam according to the first beam measurement report and the measurement result obtained by the communication device 1000 by measuring the first measurement signal.
  • the first beam measurement report includes available beam information and/or unavailable beam information
  • the measurement result obtained by the communication device 1000 by measuring the first measurement signal includes interference beam information and/or non-interference beam information.
  • the first target beam belongs to the available beam indicated by the available beam information and does not belong to the interference beam indicated by the interference beam information; or, the first target beam belongs to the available beam indicated by the available beam information and belongs to the non-interference beam information The indicated non-interference beam; or, the first target beam does not belong to the unavailable beam indicated by the unavailable beam information, and does not belong to the interference beam indicated by the interference beam information; or, the first target beam does not belong to the unavailable beam information
  • the indicated unusable beam belongs to the non-interfering beam indicated by the non-interfering beam information.
  • the transceiver unit 1020 is further configured to send first indication information to the first device, and send second indication information to the second device.
  • the first indication information is used to indicate the transmission resource of the first measurement signal
  • the transmission resource of the first measurement signal is used for the first device to send the first measurement signal
  • the second indication information is used to indicate the detection resource of the first measurement signal.
  • the detection resource of the first measurement signal is used by the second device to measure the first measurement signal sent by the first device.
  • the transceiver unit 1020 is further configured to receive a fifth beam measurement report sent by the second device to determine the second target beam, and the fifth beam measurement report is the third measurement signal sent by the second device by measuring the third device definite.
  • the processing unit 1010 is specifically configured to determine the second target beam according to the fifth beam measurement report and the available beam information and/or unavailable beam information determined by the communication device 1000 by measuring the third measurement signal.
  • the communication device 1000 may correspond to the base station in the foregoing method embodiment, and the communication device 1000 may include a unit for executing the method executed by the base station in the foregoing method embodiment.
  • the units in the communication device 1000 and the above-mentioned other operations and/or functions are respectively intended to implement the corresponding processes in the above-mentioned method embodiments. It should be understood that the specific process for each unit to execute the corresponding steps in the foregoing method embodiment has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the transceiver unit 1020 in the communication device 1000 may be an input/output interface.
  • the communication device 1000 may correspond to the D2D originating UE in the above method embodiment.
  • the communication device 1000 may correspond to the D2D receiving UE in the above method embodiment.
  • the communication device 1000 may correspond to the cellular UE in the above method embodiment.
  • the communication device 1000 may correspond to the UE in the foregoing method embodiment (such as a D2D originating UE, a D2D receiving UE, or a cellular UE), and the communication device 1000 may include a method for executing the method performed by the UE in the foregoing method embodiment.
  • the unit of the method The unit of the method.
  • the units in the communication device 1000 and the above-mentioned other operations and/or functions are used to implement the corresponding processes in the above-mentioned method embodiments, respectively. It should be understood that the specific process for each unit to execute the corresponding steps in the foregoing method embodiment has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • FIG. 17 is a schematic structural diagram of a network device provided by an embodiment of the present application, for example, it may be a schematic structural diagram of a base station. As shown in FIG. 17, the network device can implement the function of the base station in the foregoing method embodiment.
  • the network device 1100 may include one or more DU 1101 and one or more CU 1102.
  • the CU1102 can communicate with the next-generation core network (NG core, NC).
  • the DU 1101 may include at least one antenna 11011, at least one radio frequency unit 11012, at least one processor 11013, and at least one memory 11014.
  • the DU 1101 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing.
  • the CU1102 may include at least one processor 11022 and at least one memory 11021.
  • CU1102 and DU1101 can communicate through interfaces, where the control plane interface can be Fs-C, such as F1-C, and the user plane interface can be Fs-U, such as F1-U.
  • the control plane interface can be Fs-C, such as F1-C
  • the user plane interface can be Fs-U, such as F1-U.
  • the CU 1102 part is mainly used to perform baseband processing, control the base station, and so on.
  • the DU 1101 and the CU 1102 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the CU 1102 is the control center of the base station, which may also be referred to as a processing unit, and is mainly used to complete the baseband processing function.
  • the CU 1102 may be used to control the base station to execute the operation procedure of the base station in the foregoing method embodiment.
  • the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP, For example, the functions of one or more protocol layers in the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU.
  • CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements radio link control (radio link control, RLC), MAC, and physical functions.
  • the function of the (physical, PHY) layer for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP.
  • RLC radio link control
  • MAC medium access control
  • CU implements radio resource control (radio link control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP
  • the network device 1100 may include one or more radio frequency units (RU), one or more DUs, and one or more CUs.
  • the DU may include at least one processor 11013 and at least one memory 11014
  • the RU may include at least one antenna 11011 and at least one radio frequency unit 11012
  • the CU may include at least one processor 11022 and at least one memory 11021.
  • the CU1102 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks of different access standards.
  • Access network such as LTE network, 5G network or other networks.
  • the memory 11021 and the processor 11022 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the DU1101 can be composed of one or more single boards.
  • Multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), and can also support wireless access networks with different access standards (such as a 5G network).
  • the memory 11014 and the processor 11013 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • FIG. 18 is a schematic structural diagram of a terminal device 1200 provided by an embodiment of the present application.
  • the terminal device 1200 can be applied to the system shown in FIG. 1 to perform the functions of the UE (such as a cellular UE, a D2D receiving UE, or a D2D sending UE) in the foregoing method embodiment.
  • the terminal device 1200 includes a processor 1210 and a transceiver 1220.
  • the terminal device 1200 further includes a memory 1230.
  • the processor 1210, the transceiver 1220, and the memory 1230 can communicate with each other through an internal connection path to transfer control and/or data signals.
  • the memory 1230 is used to store computer programs, and the processor 1210 is used to download from the memory 1230. Call and run the computer program to control the transceiver 1220 to send and receive signals.
  • the terminal device 1200 may further include an antenna 1240 for transmitting uplink data or uplink control signaling output by the transceiver 1220 through a wireless signal.
  • the foregoing processor 1210 and the memory 1230 may be combined into a processing device, and the processor 1210 is configured to execute the program code stored in the memory 1230 to implement the foregoing functions.
  • the memory 1230 may also be integrated in the processor 1210 or independent of the processor 1210.
  • the processor 1210 may correspond to the processing unit in FIG. 16.
  • the aforementioned transceiver 1220 may correspond to the transceiver unit in FIG. 16, and may also be referred to as a transceiver unit.
  • the transceiver 1220 may include a receiver (or called a receiver, a receiving circuit) and a transmitter (or called a transmitter, a transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
  • the terminal device 1200 shown in FIG. 18 can implement various processes involving the UE in the foregoing method embodiments.
  • the operations and/or functions of each module in the terminal device 1200 are respectively for implementing the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 1210 may be used to perform the actions described in the foregoing method embodiments that are implemented internally by the UE, and the transceiver 1220 may be used to perform the actions described in the foregoing method embodiments that the UE sends to or receives from the base station.
  • the transceiver 1220 may be used to perform the actions described in the foregoing method embodiments that the UE sends to or receives from the base station.
  • the aforementioned terminal device 1200 may further include a power supply 1250 for providing power to various devices or circuits in the terminal device.
  • the terminal device 1200 may also include one or more of an input unit 1260, a display unit 1270, an audio circuit 1280, a camera 1290, and a sensor 1310.
  • the audio circuit One or more of a speaker 1282, a microphone 1284, and the like may also be included.
  • An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the method in the foregoing method embodiment.
  • the aforementioned processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller unit microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the memory 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
  • the present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the function of any of the foregoing method embodiments is realized.
  • This application also provides a computer program product, which, when executed by a computer, realizes the functions of any of the foregoing method embodiments.
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
  • system and “network” in this article are often used interchangeably in this article.
  • network in this article is only an association relationship describing the associated objects, which means 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, exist alone B these three situations.
  • At least one of! or "at least one of" as used herein means all or any combination of the listed items, for example, “at least one of A, B and C", It can be expressed that: A alone exists, B alone exists, C exists alone, A and B exist at the same time, B and C exist at the same time, and there are six situations of A, B and C at the same time.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.
  • 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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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

Un procédé de communication et un appareil de communication sont fournis. Dans le scénario dans lequel une ressource temps-fréquence de liaison montante ou une ressource temps-fréquence de liaison descendante de communication cellulaire est multiplexée pendant une communication D2D, un dispositif de réseau détermine un faisceau utilisé par un UE d'extrémité d'envoi D2D pendant une communication D2D, et configure celui-ci pour l'UE d'extrémité d'envoi D2D, ce qui facilite la réduction ou la prévention des interférences de communication D2D vis-à-vis d'une communication cellulaire tout en améliorant le taux d'utilisation du spectre. La présente application peut être appliquée à une pluralité de scénarios d'application, tels que D2D, relais, maillage, IAB, une coopération V2X, une coopération d'UE, une transmission haute fréquence, un scénario industriel, une coopération de robots et l'Internet des objets.
PCT/CN2020/116251 2019-09-20 2020-09-18 Procédé de communication et appareil de communication WO2021052473A1 (fr)

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