WO2022047713A1 - 通信方法、装置、通信设备和存储介质 - Google Patents
通信方法、装置、通信设备和存储介质 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
Definitions
- the present application relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies, and in particular, to communication methods, apparatuses, communication devices, and storage media.
- Wireless communication technologies such as the fifth generation (5G, 5th Generation) cellular mobile communication technology, allow communication devices to transmit data on the unlicensed spectrum.
- the data sender needs to monitor the channel before occupying the unlicensed spectrum channel to send data. , that is, CCA (clear channel assessment) for idle channel detection. If the data sender determines that the channel is idle after performing CCA, it can occupy the channel to send data, and the maximum channel duration (MCOT, Maximum Channel Occupy Time) of the occupied channel is specified by the protocol or configured and indicated by the base station; if the data sender performs CCA and determines that the channel is Occupied, the channel cannot be occupied.
- the above process is generally referred to as a listen-before-talk (LBT, listen before talk) channel access (Channel Access) process on an unlicensed frequency band.
- LBT listen before talk
- Channel Access Channel access
- embodiments of the present disclosure provide a communication method, apparatus, communication device, and storage medium.
- a communication method wherein, applied to a data sending end, the method includes:
- Clear channel detection CCA is performed by detecting beams, wherein one of the detection beams is associated with at least one transmit beam for transmitting data.
- the method further includes:
- the sending data through at least one of the sending beams associated with the detection beams includes:
- the time domain positions of the two transmitting beams used for transmitting data that are adjacent in the time domain are continuous, or, when The interval between the time domain positions of two adjacent transmission beams for transmitting data is smaller than a predetermined time domain interval.
- the method further includes:
- the transmit beam associated with the detection beam is determined according to beam correspondence information, where the beam correspondence information is used to indicate the detection beam and at least one transmit beam associated with the detection beam.
- the beam correspondence information is used to indicate the detection beam, an identifier of a reference signal of at least one of the transmission beams associated with the detection beam.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the method further includes:
- the beam correspondence information sent by the receiving base station includes:
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam. .
- a beam configuration method wherein, applied to a base station, the method includes:
- the beam correspondence information is used to indicate a detection beam and at least one transmission beam associated with the detection beam, wherein the detection beam is used for the UE to perform idle channel detection CCA;
- the transmission beam is used for transmitting data.
- the sending beam correspondence information to the UE includes:
- the beam correspondence information is used to indicate the detection beam and an identifier of a reference signal of at least one transmit beam associated with the detection beam.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam.
- a communication device wherein, applied to a data sending end, the device includes: a detection module, wherein,
- the detection module is configured to perform idle channel detection CCA by detecting beams, wherein one of the detection beams is associated with at least one transmission beam used for transmitting data.
- the apparatus further includes:
- a first sending module configured to, in response to the CCA result that the detection beam is not occupied, send data through at least one of the transmission beams associated with the detection beam.
- the first sending module includes:
- the first sending sub-module is configured to send data respectively through at least one of the sending beams associated with the detection beams within the maximum channel occupation duration MCOT of the detection beams.
- the time domain positions of the two transmitting beams used for transmitting data that are adjacent in the time domain are continuous, or, when The interval between the time domain positions of two adjacent transmission beams for transmitting data is smaller than a predetermined time domain interval.
- the apparatus further comprises:
- a determination module configured to determine the transmission beam associated with the detection beam according to beam correspondence information, wherein the beam correspondence information is used to indicate at least one of the detection beam and the detection beam associated with the detection beam the transmit beam.
- the beam correspondence information is used to indicate the detection beam, an identifier of a reference signal of at least one of the transmission beams associated with the detection beam.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the apparatus further comprises:
- the receiving module is configured to receive the beam correspondence information sent by the base station in response to the data sending end being a user equipment UE.
- the receiving module includes:
- the receiving sub-module is configured to receive the radio resource control RRC signaling carrying the beam correspondence information.
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam.
- a beam configuration apparatus wherein, when applied to a base station, the apparatus includes: a second sending module, wherein:
- the second sending module is configured to send beam correspondence information to the user equipment UE, where the beam correspondence information is used to indicate a detection beam and at least one transmission beam associated with the detection beam, wherein the detection beam , for the UE to perform idle channel detection CCA;
- the transmission beam is used for transmitting data.
- the second sending module includes:
- the second sending submodule is configured to send the radio resource control RRC signaling carrying the beam correspondence information to the UE.
- the beam correspondence information is used to indicate the detection beam and an identifier of a reference signal of at least one transmit beam associated with the detection beam.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam.
- a communication equipment apparatus including a processor, a memory, and an executable program stored on the memory and executable by the processor, wherein the processor executes the executable program.
- the program executes the executable program.
- a storage medium on which an executable program is stored, wherein when the executable program is executed by a processor, the steps of the communication method described in the first aspect are implemented, or the The steps of the beam configuration method described in the second aspect.
- the data transmitting end performs idle channel detection CCA by using a detection beam, and one of the detection beams is associated with at least one transmission beam for transmitting data.
- the channel occupancy status of one or more transmit beams can be determined only by performing CCA on the detection beams associated with the multiple transmit beams.
- the efficiency of CCA is improved.
- the overhead of CCA is reduced compared to CCA by transmitting beams one by one.
- FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
- FIG. 2 is a schematic flowchart of a communication method according to an exemplary embodiment
- FIG. 3 is a schematic diagram showing the relationship between a detection beam and a transmission beam according to an exemplary embodiment
- FIG. 4 is a schematic flowchart of another communication method according to an exemplary embodiment
- FIG. 5 is a schematic flowchart of yet another communication method according to an exemplary embodiment
- FIG. 6 is a block diagram of a communication apparatus according to an exemplary embodiment
- FIG. 7 is a block diagram of another communication apparatus according to an exemplary embodiment.
- Fig. 8 is a block diagram of an apparatus for communication according to an exemplary embodiment.
- first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
- the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
- the word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
- FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
- the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .
- the terminal 11 may be a device that provides voice and/or data connectivity to the user.
- the terminal 11 may communicate with one or more core networks via a radio access network (RAN), and the terminal 11 may be an IoT terminal such as a sensor device, a mobile phone (or "cellular" phone) and a
- RAN radio access network
- the computer of the IoT terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or a vehicle-mounted device.
- a station For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access point, a remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment, UE).
- the terminal 11 may also be a device of an unmanned aerial vehicle.
- the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless communication device externally connected to the trip computer.
- the terminal 11 may also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.
- the base station 12 may be a network-side device in a wireless communication system.
- the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
- the wireless communication system may also be a next-generation system of the 5G system.
- the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).
- the MTC system may be a network-side device in a wireless communication system.
- the base station 12 may be an evolved base station (eNB) used in the 4G system.
- the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
- eNB evolved base station
- gNB base station
- the base station 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
- the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control Protocol
- MAC Media Access Control
- distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
- a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
- the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
- the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
- an E2E (End to End, end-to-end) connection may also be established between the terminals 11 .
- V2V vehicle to vehicle, vehicle-to-vehicle
- V2I vehicle to Infrastructure, vehicle-to-roadside equipment
- V2P vehicle to pedestrian, vehicle-to-person communication in vehicle-to-everything (V2X) communication etc. scene.
- the above wireless communication system may further include a network management device 13 .
- the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
- the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc.
- the implementation form of the network management device 13 is not limited in this embodiment of the present disclosure.
- the execution bodies involved in the embodiments of the present disclosure include, but are not limited to, UEs such as mobile phone terminals that support cellular mobile communication, and base stations.
- An application scenario of the embodiments of the present disclosure is that in a 5G NR system, in order to enhance coverage and reduce power consumption of base stations, a multi-beam communication mechanism may be used.
- Omnidirectional beams or up to 4 directional beams can be used in lower frequency bands, and up to 8 beams or even 64 beams can be used for communication in slightly higher frequency bands.
- this exemplary embodiment provides a communication method, which can be applied to a data sending end of a cellular mobile communication system, including:
- Step 201 Perform idle channel detection CCA by detecting beams, wherein one of the detection beams is associated with at least one transmit beam for transmitting data.
- the data transmitting end may use wireless communication technology to perform data communication with the data receiving end.
- the data transmitting end may be a UE such as a terminal that communicates using a wireless communication technology such as cellular mobile communication technology, or a base station that communicates using a wireless communication technology such as cellular mobile communication technology.
- the data transmitting end is the UE
- the data receiving end may be the base station or another UE.
- the UE and the base station can perform air interface communication on the unlicensed spectrum.
- the UE and the UE can communicate using a direct link, such as a sidelink, on the unlicensed spectrum.
- the data transmitting end is the base station
- the data receiving end may be the UE.
- the UE and the base station can perform air interface communication on the unlicensed spectrum.
- the data sending end can obtain a sending beam for sending data through a beamforming method. Different transmit beams may have different directivity or coverage, etc.
- the data transmitting end can also obtain detection beams for CCA by beamforming, and different detection beams can have different directivity or coverage.
- the CCA result of the detection beam can be used to characterize the occupancy of the transmit beam associated with the detection beam. Exemplarily, if the CCA result of the detection beam indicates that the channel is not occupied, it may indicate that the channel of the transmission beam associated with the detection beam is not occupied. If the CCA result of the detection beam indicates that the channel is occupied, it can indicate that the channel of at least one transmission beam is occupied among the transmission beams associated with the detection beam.
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam.
- the detection beam may be a beam with wider coverage in the airspace, and the transmission beam may be a beam with a narrower coverage in the airspace.
- the coverage of a detection beam may include one or more transmission beams for transmitting data.
- the data transmitting end can switch between multiple transmitting beams and perform data transmission according to the relative position with the data receiving end.
- the transmission beam may be a beam used to carry an uplink channel, or a beam used to carry a downlink channel.
- the sending beam may be a beam that is used to carry resources such as a Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel) and/or a Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel).
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- the base station acts as a data sender
- the sending beam can be a beam that is used to carry resources such as a physical downlink shared channel (PDSCH, Physical Downlink Shared Channel), and/or a physical downlink control channel (PDCCH, Physical Downlink Control Channel).
- the data transmitter can perform CCA by detecting the beam.
- the data transmitting end can monitor the wireless signals within the coverage of the detection beam, and determine whether the channel of the detection beam is idle.
- the coverage of the detection beam can include one or more transmission beams.
- the one or more transmit beams included in the coverage of the detection beam may at least include the beams that the data transmit end needs to switch when the data transmit end and the data receive end move relative to each other within a certain period of time.
- the data transmitting end can determine the channel occupancy of multiple transmitting beams, reducing the probability that the data transmitting end and the data receiving end perform CCA on the newly switched transmit beam during the relative motion process, thereby reducing the CCA overhead. .
- one or more transmitting beams for uplink data may be included within the coverage of the detection beam.
- the UE may perform CCA on the detection beam, and then determine the channel occupancy of each transmission beam used for uplink data.
- the data sending end is a base station
- one or more sending beams for downlink data may be included within the coverage of the detection beam.
- the base station may perform CCA on the detection beam, and then determine the channel occupation of each transmission beam used for downlink data.
- the channel occupancy status of one or more transmit beams can be determined only by performing CCA on the detection beams associated with the multiple transmit beams.
- the efficiency of CCA is improved.
- the overhead of CCA is reduced compared to CCA by transmitting beams one by one.
- the method further includes:
- Step 202 In response to the result of the CCA being that the detection beam is not occupied, send data through at least one of the transmission beams associated with the detection beam.
- the data transmitting end may use the transmitting beam within the coverage of the detection beam to transmit data.
- the data transmitting end may use one or more transmitting beams within the coverage of the detection beam to transmit data.
- the data transmitting end can reduce the coverage of the detection beam, and perform CCA on the detection beam after the coverage is reduced. For example, when the CCA result of the detection beam is that the channel is occupied, the data transmitter can adjust the coverage of the detection beam to be consistent with the scheduled transmission beam, that is, perform CCA on the scheduled transmission beam separately to determine the channel occupancy.
- the UE when the data transmitting end is the UE, the UE can perform CCA on the detection beam. If the CCA result of the detection beam is that the channel is not occupied, the UE can pass the detection beam and uplink the base station through the transmission beam within the coverage of the detection beam. data. When the data transmitter is the base station, the base station can perform CCA on the detection beam. If the CCA result of the detection beam is that the channel is not occupied, the base station can downlink data to the UE through the transmission beam within the coverage of the detection beam.
- the sending data through at least one of the sending beams associated with the detection beams includes:
- the MCOT of the detection beam can be preset.
- the data sending end determines that the channel of the detection beam is not occupied, it can send data in the MCOT. If the data transmitting end still needs to occupy the channel outside the MCOT, it is necessary to perform CCA on the detection beam again, and then occupy the channel of the transmission beam after confirming that the detection beam channel is idle.
- the base station can set the MCOT of the detection beam, and the base station can send the MCOT to the UE.
- the data transmitting end can simultaneously occupy the channels of multiple transmitting beams to transmit data.
- the data transmitter can also use only one transmit beam channel at a time point, and continuously transmit data through multiple transmit beams.
- the time domain positions of the two transmitting beams used for transmitting data that are adjacent in the time domain are continuous, or, when The interval between the time domain positions of two adjacent transmission beams for transmitting data is smaller than a predetermined time domain interval.
- the interval at which the data transmitter occupies multiple transmit beam channels needs to meet certain conditions, so that external communication devices cannot According to the transmission end occupying the channel resources of the transmission beam within the interval of occupying multiple transmission beams.
- the time domain positions of two adjacent transmission beam channels occupied by the data transmitting end in the time domain can be kept continuous, that is, the channel resources of the two occupied transmission beams, such as PUSCH and/or PUCCH, need to be kept continuous.
- the interval between the time domain positions of two adjacent transmit beam channels occupied by the data transmitting end in the time domain is less than the predetermined time domain interval, that is, the interval between the occupied channel resources of the two transmit beams, such as PUSCH and/or PUCCH, may be less than the predetermined interval time interval.
- the predetermined time domain interval may be determined based on the time required for the external communication device to determine that the transmission beam channel is not occupied, for example, the predetermined time domain interval may be 16uS.
- the method further includes:
- the transmit beam associated with the detection beam is determined according to beam correspondence information, where the beam correspondence information is used to indicate the detection beam and at least one transmit beam associated with the detection beam.
- the beam correspondence information may be preset by the base station or the like.
- the beam correspondence information may indicate a detection beam and at least one transmission beam included in its coverage.
- the beam correspondence information may also indicate the multiple detection beams and at least one transmit beam included in the respective coverage areas of the multiple detection beams.
- the base station and the UE may determine the transmission beam corresponding to the detection beam or the detection beam corresponding to the transmission beam based on the beam correspondence information.
- the beam correspondence information is used to indicate the detection beam, an identifier of a reference signal of at least one of the transmission beams associated with the detection beam.
- beams are actually characterized by reference signals.
- the so-called different beams can be represented by different reference signals in the protocol.
- Different reference signals have different identifications.
- the beam correspondence information may indicate an identifier of a reference signal of a detection beam and at least one transmission beam included in its coverage.
- the beam correspondence information may also indicate an identifier of the reference signal of the multiple detection beams and at least one transmission beam included in the respective coverage areas of the multiple detection beams.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the reference signal may include: SSB, CSI-RS, and the like.
- the beam correspondence information may indicate the index of the SSB and/or the ID of the CSI-RS of the transmission beam included in the detection beam and its coverage. In this way, the detection beam and the transmit beam included in its coverage can be clearly indicated.
- the method further includes:
- the base station may send beam correspondence information to the UE, and the beam correspondence information may include: one or more detection beams, and one or more transmission beams respectively included in the coverage of each detection beam.
- the beam correspondence information sent by the receiving base station includes:
- the base station may send beam correspondence information to the UE through RRC signaling.
- the beam correspondence information may be transmitted by using the existing RRC signaling, for example, the beam correspondence information is carried by using the reserved bits of the existing RRC signaling. It is also possible to add RRC signaling specifically for carrying beam correspondence information.
- the base station may send beam correspondence information before scheduling channel resources for uplink data to the UE.
- the base station may send beam correspondence information through RRC signaling.
- the base station may indicate the transmission beam and LBT mode of the PUSCH/PUCCH in the scheduling DCI.
- the UE receives the scheduling DCI and determines the transmission beam of the PUSCH/PUCCH.
- the detection beam corresponding to the transmission beam is determined according to the beam correspondence information, and the detection beam is CCA.
- CCA determines that the channel is not occupied, uplink data.
- the base station When the base station downlinks data, it may first determine the transmission beam of the downlink data, and determine the detection beam corresponding to the transmission beam according to the beam correspondence information, and CCA the detection beam. When CCA determines that the channel is not occupied, downlink data.
- this exemplary embodiment provides a communication method, which can be applied to a base station of a cellular mobile communication system, including:
- Step 501 Send beam correspondence information to a user equipment UE, where the beam correspondence information is used to indicate a detection beam and at least one transmission beam associated with the detection beam, wherein the detection beam is used for the UE to perform Idle channel detection CCA;
- the transmission beam is used for transmitting data.
- the UE may be a UE such as a terminal that communicates using a wireless communication technology such as a cellular mobile communication technology
- the base station may be an access network interface in a cellular mobile communication system.
- the UE and the base station can perform air interface communication on the unlicensed spectrum.
- the UE may obtain a transmit beam for transmitting data by using a beamforming method. Different transmit beams can have different directivity or coverage, etc.
- the UE may also obtain detection beams for CCA by beamforming, and different detection beams may have different directivity or coverage.
- the CCA result of the detection beam can be used to characterize the occupancy of the transmit beam associated with the detection beam. Exemplarily, if the CCA result of the detection beam indicates that the channel is not occupied, it may indicate that the channel of the transmission beam associated with the detection beam is not occupied. If the CCA result of the detection beam indicates that the channel is occupied, it can indicate that the channel of at least one transmission beam is occupied among the transmission beams associated with the detection beam.
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam.
- the detection beam may be a beam with wider coverage in the airspace, and the transmission beam may be a beam with a narrower coverage in the airspace.
- the coverage of a detection beam may include one or more transmission beams for transmitting data.
- the data transmitting end can switch between multiple transmitting beams and perform data transmission according to the relative position with the data receiving end.
- the transmission beam may be a beam used to carry an uplink channel, or a beam used to carry a downlink channel.
- the sending beam may be a beam that is used to carry resources such as a Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel) and/or a Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel).
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- the base station acts as a data sender
- the sending beam may be a beam that is used to carry resources such as a Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel) and/or a Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel).
- PDSCH Physical Downlink Shared Channel
- PDCCH Physical Downlink Control Channel
- the UE can perform CCA by detecting beams.
- the UE may monitor wireless signals within the coverage of the detection beam, and determine whether the channel of the detection beam is idle.
- the coverage of the detection beam can include one or more transmission beams.
- the channel of the detection beam When the channel of the detection beam is idle, it can be determined that the channel of each transmission beam is also idle.
- One or more transmission beams included in the coverage of the detection beam may at least include beams that the UE needs to switch when the UE moves relative to the base station within a certain period of time.
- the UE By performing CCA on the detection beam, the UE can determine the channel occupancy of multiple transmit beams, reducing the probability that the data UE performs CCA on the newly switched transmit beam during the movement process, thereby reducing the CCA overhead.
- one or more transmission beams for uplink data may be included within the coverage of the detection beam.
- the UE may perform CCA on the detection beam, and then determine the channel occupancy of each transmission beam used for uplink data.
- the base station may send beam correspondence information to the UE, and the beam correspondence information may include: one or more detection beams, and one or more transmission beams respectively included in the coverage of each detection beam.
- the channel occupancy status of one or more transmit beams can be determined only by performing CCA on the detection beams associated with each transmit beam.
- the efficiency of CCA is improved.
- the overhead of CCA is reduced compared to CCA by transmitting beams one by one.
- the sending beam correspondence information to the UE includes:
- the base station may send beam correspondence information to the UE through RRC signaling.
- the beam correspondence information may be transmitted by using the existing RRC signaling, for example, the beam correspondence information is carried by using the reserved bits of the existing RRC signaling. It is also possible to add RRC signaling specifically for carrying beam correspondence information.
- the base station may send beam correspondence information before scheduling channel resources for uplink data to the UE.
- the base station may send beam correspondence information through RRC signaling.
- the base station may indicate the transmission beam and LBT mode of the PUSCH/PUCCH in the scheduling DCI.
- the UE receives the scheduling DCI and determines the transmission beam of the PUSCH/PUCCH. And according to the beam correspondence information, the detection beam corresponding to the transmission beam is determined, and the detection beam is CCA. When CCA determines that the channel is not occupied, uplink data.
- the base station When the base station downlinks data, it may first determine the transmission beam of the downlink data, and determine the detection beam corresponding to the transmission beam according to the beam correspondence information, and CCA the detection beam. When CCA determines that the channel is not occupied, downlink data.
- the beam correspondence information is used to indicate the detection beam and an identifier of a reference signal of at least one transmit beam associated with the detection beam.
- beams are actually characterized by reference signals.
- the so-called different beams can be represented by different reference signals in the protocol.
- Different reference signals have different identifications.
- the beam correspondence information may indicate an identifier of a reference signal of a detection beam and at least one transmission beam included in its coverage.
- the beam correspondence information may also indicate an identifier of the reference signal of the multiple detection beams and at least one transmission beam included in the respective coverage areas of the multiple detection beams.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the reference signal may include: SSB, CSI-RS, and the like.
- the beam correspondence information may indicate the index of the SSB and/or the ID of the CSI-RS of the transmission beam included in the detection beam and its coverage. In this way, the detection beam and the transmit beam included in its coverage can be clearly indicated.
- beams can be characterized by reference signals. Different beams are reflected in the protocol as different reference signals. For example, synchronization signal blocks (SSBs, Synchronization Signal Blocks) with different index indices and channel state information reference signals (CSI-RS, Channel Status Information-Reference Signals) with different IDs can all represent different beams.
- SSBs Synchronization Signal Blocks
- CSI-RS Channel Status Information-Reference Signals
- the base station can configure one or more beam sets (or, reference signal ID sets) for the UE through high-layer signaling, such as RRC layer signaling, and each beam set includes:
- the detection beam is a wider beam in the spatial domain, and the transmit beam is a narrower beam in the spatial domain.
- the detection beam can include one or more transmit beams in the set.
- the detection beam itself is also the default transmit beam.
- the data sender can use the detection beam to perform CCA. After the channel detection is successful, in the subsequent MCOT, if multiple transmission beams in this set are used to transmit data respectively, there is no need to perform CCA again because the transmission beam is switched. Data transmission can be started directly. Thus, the LBT overhead can be reduced.
- the DCI for scheduling PUSCH from the base station to the UE will include the PUSCH transmission beam and the LBT mode, but does not specify the beam used for CCA detection.
- the specific steps may include:
- the base station configures the detection beam and its corresponding multiple transmit beams through RRC layer signaling.
- Base station side still according to the practice of R16, the base station only indicates the transmission beam and LBT mode of the PUSCH in the scheduling DCI, and does not need to indicate the detection beam.
- the UE side The UE receives the scheduling DCI, and uses the detection beam corresponding to the transmission beam of the PUSCH to perform LBT.
- the detection beam is determined according to the high-level configuration.
- a certain threshold value for example, 16us
- An embodiment of the present invention further provides a communication device, which is applied to a data sending end of wireless communication.
- the communication device 100 includes: a detection module 110, wherein:
- the detection module 110 is configured to perform idle channel detection CCA by detecting beams, wherein one of the detection beams is associated with at least one transmission beam used for transmitting data.
- the apparatus 100 further includes:
- the first sending module 120 is configured to, in response to the result of the CCA being that the detection beam is not occupied, send data through at least one of the transmission beams associated with the detection beam.
- the first sending module 120 includes:
- the first sending sub-module 121 is configured to respectively send data through at least one of the sending beams associated with the detection beams within the maximum channel occupation duration MCOT of the detection beams.
- the time domain positions of the two transmitting beams used for transmitting data that are adjacent in the time domain are continuous, or, when The interval between the time domain positions of two adjacent transmission beams for transmitting data is smaller than a predetermined time domain interval.
- the apparatus 100 further includes:
- the determining module 130 is configured to determine the transmission beam associated with the detection beam according to the beam correspondence information, wherein the beam correspondence information is used to indicate that the detection beam is associated with at least one of the detection beams. one of the transmit beams.
- the beam correspondence information is used to indicate the detection beam, an identifier of a reference signal of at least one of the transmission beams associated with the detection beam.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the apparatus 100 further includes:
- the receiving module 140 is configured to receive the beam correspondence information sent by the base station in response to the data sending end being a user equipment UE.
- the receiving module 140 includes:
- the receiving sub-module 141 is configured to receive the radio resource control RRC signaling carrying the beam correspondence information.
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam.
- An embodiment of the present invention further provides a communication apparatus, which is applied to a base station of wireless communication.
- the communication apparatus 200 includes: a second sending module 210, wherein:
- the second sending module 210 is configured to send beam correspondence information to the user equipment UE, where the beam correspondence information is used to indicate a detection beam and at least one transmission beam associated with the detection beam, wherein the detection beam Beam, used for the UE to perform idle channel detection CCA;
- the transmission beam is used for transmitting data.
- the second sending module 210 includes:
- the second sending sub-module 211 is configured to send the radio resource control RRC signaling carrying the beam correspondence information to the UE.
- the beam correspondence information is used to indicate the detection beam and an identifier of a reference signal of at least one transmit beam associated with the detection beam.
- the identifier of the reference signal includes at least one of the following: an index of a synchronization signal block SSB, an identifier ID of a channel state information reference signal CSI-RS.
- the at least one transmit beam associated with the detection beam is located within the coverage area of the detection beam.
- the detection module 110, the first sending module 120, the determining module 130, the receiving module 140, the second sending module 210, etc. may be processed by one or more central processing units (CPU, Central Processing Unit), graphics processor (GPU, Graphics Processing Unit), baseband processor (BP, baseband processor), application specific integrated circuit (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), complex programmable logic Device (CPLD, Complex Programmable Logic Device), Field Programmable Gate Array (FPGA, Field-Programmable Gate Array), General Purpose Processor, Controller, Micro Controller (MCU, Micro Controller Unit), Microprocessor (Microprocessor), or other electronic components to implement the aforementioned method.
- CPU Central Processing Unit
- GPU Graphics Processing Unit
- BP baseband processor
- ASIC Application Specific Integrated Circuit
- DSP programmable logic device
- PLD Programmable Logic Device
- CPLD Complex Programmable Logic Device
- FPGA Field-Programmable Gate Array
- FIG. 8 is a block diagram of an apparatus 3000 for communication according to an exemplary embodiment.
- apparatus 3000 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
- the apparatus 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, And the communication component 3016.
- a processing component 3002 a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, And the communication component 3016.
- the processing component 3002 generally controls the overall operation of the apparatus 3000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
- the processing component 3002 can include one or more processors 3020 to execute instructions to perform all or some of the steps of the methods described above.
- processing component 3002 may include one or more modules that facilitate interaction between processing component 3002 and other components.
- processing component 3002 may include a multimedia module to facilitate interaction between multimedia component 3008 and processing component 3002.
- Memory 3004 is configured to store various types of data to support operation at device 3000 . Examples of such data include instructions for any application or method operating on the device 3000, contact data, phonebook data, messages, pictures, videos, and the like. Memory 3004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
- SRAM static random access memory
- EEPROM electrically erasable programmable read only memory
- EPROM erasable Programmable Read Only Memory
- PROM Programmable Read Only Memory
- ROM Read Only Memory
- Magnetic Memory Flash Memory
- Magnetic or Optical Disk Magnetic Disk
- Power supply assembly 3006 provides power to various components of device 3000.
- Power supply components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 3000.
- Multimedia component 3008 includes a screen that provides an output interface between device 3000 and the user.
- the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
- the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. A touch sensor can sense not only the boundaries of a touch or swipe action, but also the duration and pressure associated with the touch or swipe action.
- the multimedia component 3008 includes a front-facing camera and/or a rear-facing camera. When the apparatus 3000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
- Audio component 3010 is configured to output and/or input audio signals.
- audio component 3010 includes a microphone (MIC) that is configured to receive external audio signals when device 3000 is in operating modes, such as call mode, recording mode, and voice recognition mode.
- the received audio signal may be further stored in memory 3004 or transmitted via communication component 3016.
- the audio component 3010 also includes a speaker for outputting audio signals.
- the I/O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
- Sensor assembly 3014 includes one or more sensors for providing status assessment of various aspects of device 3000 .
- the sensor assembly 3014 can detect the open/closed state of the device 3000, the relative positioning of the components, such as the display and keypad of the device 3000, the sensor assembly 3014 can also detect the position change of the device 3000 or a component of the device 3000, the user The presence or absence of contact with the device 3000, the orientation or acceleration/deceleration of the device 3000 and the temperature change of the device 3000.
- Sensor assembly 3014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
- Sensor assembly 3014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
- the sensor component 3014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
- Communication component 3016 is configured to facilitate wired or wireless communication between apparatus 3000 and other devices.
- the apparatus 3000 may access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
- the communication component 3016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
- the communication component 3016 also includes a near field communication (NFC) module to facilitate short-range communication.
- NFC near field communication
- the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
- RFID radio frequency identification
- IrDA infrared data association
- UWB ultra-wideband
- Bluetooth Bluetooth
- apparatus 3000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
- ASICs application specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGA field programmable A gate array
- controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
- non-transitory computer-readable storage medium including instructions, such as a memory 3004 including instructions, which are executable by the processor 3020 of the apparatus 3000 to perform the above method.
- the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
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Abstract
本公开实施例是关于通信方法、装置、通信设备和存储介质,通过检测波束进行空闲信道检测(CCA),其中,一个所述检测波束关联至少一个用于发送数据的发送波束。
Description
本申请涉及无线通信技术领域但不限于无线通信技术领域,尤其涉及通信方法、装置、通信设备和存储介质。
无线通信技术,如第五代(5G,5th Generation)蜂窝移动通信技术等,允许通信设备在非授权频谱上进行数据传输,数据发送端在占用非授权频谱信道发送数据之前,需要对信道进行监听,也即空闲信道检测CCA(clear channel assessment)。如果数据发送端进行CCA后判断信道空闲,则可以占用信道发送数据,其占用信道最大时长(MCOT,Maximum Channel Occupy Time)由协议约定或者基站配置并指示;如果数据发送端进行CCA后判断信道被占用,则不能占用信道。以上过程一般被称为非授权频段上先听后说(LBT,listen before talk)的信道接入(Channel Access)的过程。
发明内容
有鉴于此,本公开实施例提供了一种通信方法、装置、通信设备和存储介质。
根据本公开实施例的第一方面,提供一种通信方法,其中,应用于数据发送端,所述方法包括:
通过检测波束进行空闲信道检测CCA,其中,一个所述检测波束关联至少一个用于发送数据的发送波束。
在一个实施例中,所述方法还包括:
响应于所述CCA的结果为所述检测波束未被占用,通过所述检测波束 关联的至少一个所述发送波束发送数据。
在一个实施例中,所述通过所述检测波束关联的的至少一个所述发送波束发送数据,包括:
在所述检测波束的最大信道占用时长MCOT内,通过所述检测波束关联的至少一个所述发送波束分别发送数据。
在一个实施例中,响应于通过所述检测波束关联的多个所述发送波束分别发送数据,时域相邻的两个用于发送数据的所述发送波束的时域位置连续,或者,时域相邻的两个用于发送数据的所述发送波束的时域位置的间隔小于预定时域间隔。
在一个实施例中,所述方法还包括:
根据波束对应关系信息,确定所述检测波束所关联的所述发送波束,其中,所述波束对应关系信息,用于指示所述检测波束与所述检测波束所关联的至少一个所述发送波束。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,与所述检测波束所关联的至少一个所述发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
在一个实施例中,所述方法还包括:
响应于所述数据发送端为用户设备UE,接收基站发送的所述波束对应关系信息。
在一个实施例中,所述接收基站发送的所述波束对应关系信息,包括:
接收携带有所述波束对应关系信息的无线资源控制RRC信令。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。。
根据本公开实施例的第二方面,提供一种波束配置方法,其中,应用 于基站,所述方法包括:
向用户设备UE发送波束对应关系信息,所述波束对应关系信息,用于指示检测波束和与所述检测波束关联的至少一个发送波束,其中,所述检测波束,用于供UE进行空闲信道检测CCA;
响应于所述检测波束的CCA结果为所述检测波束未被占用,所述发送波束用于发送数据。
在一个实施例中,所述向UE发送波束对应关系信息,包括:
向所述UE发送携带有所述波束对应关系信息的无线资源控制RRC信令。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,和与所述检测波束关联的至少一个发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
根据本公开实施例的第三方面,提供一种通信装置,其中,应用于数据发送端,所述装置包括:检测模块,其中,
所述检测模块,配置为通过检测波束进行空闲信道检测CCA,其中,一个所述检测波束关联至少一个用于发送数据的发送波束。
在一个实施例中,所述装置还包括:
第一发送模块,配置为响应于所述CCA的结果为所述检测波束未被占用,通过所述检测波束关联的至少一个所述发送波束发送数据。
在一个实施例中,所述第一发送模块,包括:
第一发送子模块,配置为在所述检测波束的最大信道占用时长MCOT内,通过所述检测波束关联的至少一个所述发送波束分别发送数据。
在一个实施例中,响应于通过所述检测波束关联的多个所述发送波束分别发送数据,时域相邻的两个用于发送数据的所述发送波束的时域位置连续,或者,时域相邻的两个用于发送数据的所述发送波束的时域位置的间隔小于预定时域间隔。
在一个实施例中,所述装置还包括:
确定模块,配置为根据波束对应关系信息,确定所述检测波束所关联的所述发送波束,其中,所述波束对应关系信息,用于指示所述检测波束与所述检测波束所关联的至少一个所述发送波束。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,与所述检测波束所关联的至少一个所述发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
在一个实施例中,所述装置还包括:
接收模块,配置为响应于所述数据发送端为用户设备UE,接收基站发送的所述波束对应关系信息。
在一个实施例中,所述接收模块,包括:
接收子模块,配置为接收携带有所述波束对应关系信息的无线资源控制RRC信令。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
根据本公开实施例的第四方面,提供一种波束配置装置,其中,应用于基站,所述装置包括:第二发送模块,其中,
所述第二发送模块,配置为向用户设备UE发送波束对应关系信息,所述波束对应关系信息,用于指示检测波束和与所述检测波束关联的至少一个发送波束,其中,所述检测波束,用于供UE进行空闲信道检测CCA;
响应于所述检测波束的CCA结果为所述检测波束未被占用,所述发送波束用于发送数据。
在一个实施例中,所述第二发送模块,包括:
第二发送子模块,配置为向所述UE发送携带有所述波束对应关系信息的无线资源控制RRC信令。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,和与所述检测波束关联的至少一个发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
根据本公开实施例的第五方面,提供一种通信设备装置,包括处理器、存储器及存储在存储器上并能够由所述处理器运行的可执行程序,其中,所述处理器运行所述可执行程序时执行如第一方面所述通信方法的步骤,或如第二方面所述波束配置方法的步骤。
根据本公开实施例的第六方面,提供一种存储介质,其上存储由可执行程序,其中,所述可执行程序被处理器执行时实现如第一方面所述通信方法的步骤,或如第二方面所述波束配置方法的步骤。
根据本公开实施例提供的通信方法、装置、通信设备和存储介质,数据发送端通过检测波束进行空闲信道检测CCA,一个所述检测波束关联至少一个用于发送数据的发送波束。如此,可以只通过对关联于多个发送波束的检测波束进行CCA,就可以确定一个或多个发送波束的信道占用状况。一方面,提高了CCA的效率。另一方面,相对于逐个发送波束进行CCA,降低了CCA的开销。
应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释 性的,并不能限制本公开实施例。
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本发明实施例,并与说明书一起用于解释本发明实施例的原理。
图1是根据一示例性实施例示出的一种无线通信***的结构示意图;
图2是根据一示例性实施例示出的一种通信方法的流程示意图;
图3是根据一示例性实施例示出的检测波束和发送波束关系示意图;
图4是根据一示例性实施例示出的另一种通信方法的流程示意图;
图5是根据一示例性实施例示出的又一种通信方法的流程示意图;
图6是根据一示例性实施例示出的一种通信装置的框图;
图7是根据一示例性实施例示出的另一种通信装置的框图;
图8是根据一示例性实施例示出的一种用于通信的装置的框图。
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明实施例相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本发明实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。还应当理解,本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解,尽管在本公开实施例可能采用术语第一、第二、第三等来 描述各种信息,但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如,在不脱离本公开实施例范围的情况下,第一信息也可以被称为第二信息,类似地,第二信息也可以被称为第一信息。取决于语境,如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
请参考图1,其示出了本公开实施例提供的一种无线通信***的结构示意图。如图1所示,无线通信***是基于蜂窝移动通信技术的通信***,该无线通信***可以包括:若干个终端11以及若干个基站12。
其中,终端11可以是指向用户提供语音和/或数据连通性的设备。终端11可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,终端11可以是物联网终端,如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端的计算机,例如,可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如,站(Station,STA)、订户单元(subscriber unit)、订户站(subscriber station)、移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程终端(remote terminal)、接入终端(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户终端(user equipment,UE)。或者,终端11也可以是无人飞行器的设备。或者,终端11也可以是车载设备,比如,可以是具有无线通信功能的行车电脑,或者是外接行车电脑的无线通信设备。或者,终端11也可以是路边设备,比如,可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
基站12可以是无线通信***中的网络侧设备。其中,该无线通信***可以是***移动通信技术(the 4th generation mobile communication,4G)***,又称长期演进(Long Term Evolution,LTE)***;或者,该无线通信***也可以是5G***,又称新空口(new radio,NR)***或5G NR系 统。或者,该无线通信***也可以是5G***的再下一代***。其中,5G***中的接入网可以称为NG-RAN(New Generation-Radio Access Network,新一代无线接入网)。或者,MTC***。
其中,基站12可以是4G***中采用的演进型基站(eNB)。或者,基站12也可以是5G***中采用集中分布式架构的基站(gNB)。当基站12采用集中分布式架构时,通常包括集中单元(central unit,CU)和至少两个分布单元(distributed unit,DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)层、无线链路层控制协议(Radio Link Control,RLC)层、媒体访问控制(Media Access Control,MAC)层的协议栈;分布单元中设置有物理(Physical,PHY)层协议栈,本公开实施例对基站12的具体实现方式不加以限定。
基站12和终端11之间可以通过无线空口建立无线连接。在不同的实施方式中,该无线空口是基于***移动通信网络技术(4G)标准的无线空口;或者,该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口,比如该无线空口是新空口;或者,该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
在一些实施例中,终端11之间还可以建立E2E(End to End,端到端)连接。比如车联网通信(vehicle to everything,V2X)中的V2V(vehicle to vehicle,车对车)通信、V2I(vehicle to Infrastructure,车对路边设备)通信和V2P(vehicle to pedestrian,车对人)通信等场景。
在一些实施例中,上述无线通信***还可以包含网络管理设备13。
若干个基站12分别与网络管理设备13相连。其中,网络管理设备13可以是无线通信***中的核心网设备,比如,该网络管理设备13可以是演进的数据分组核心网(Evolved Packet Core,EPC)中的移动性管理实体(Mobility Management Entity,MME)。或者,该网络管理设备也可以是其 它的核心网设备,比如服务网关(Serving GateWay,SGW)、公用数据网网关(Public Data Network GateWay,PGW)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)或者归属签约用户服务器(Home Subscriber Server,HSS)等。对于网络管理设备13的实现形态,本公开实施例不做限定。
本公开实施例涉及的执行主体包括但不限于:支持蜂窝移动通信的手机终端等UE,以及基站等。
本公开实施例的一个应用场景为,在5G NR***中,为了增强覆盖,降低基站功耗,可以采用多波束的通信机制。在较低频段可以使用全向波束或者最多4个方向性波束,在稍高频段,可以使用最多8波束甚至64波束进行通信。
在高频通信***中,例如在NR 52.6GHz以上的高频通信中,为了增强覆盖、抑制信道时延(Channel Delay)等原因,通常需要使用较为精细的波束。当终端处于运动状态时,基站/终端则需要较为频繁的更换发送波束。如果在高频通信***中,UE使用较为精细的发送波束。UE在运动的情况下发送上行数据,为了能对准接收端,则需要经常切换发送波束。在非授权频段的通信中,终端在发送数据的过程中如果切换了波束则需要用新的发送波束重新做信道检测。频繁的切换波束就导致信道检测的开销过大。
如图2所示,本示例性实施例提供一种通信方法,通信方法可以应用于蜂窝移动通信***的数据发送端中,包括:
步骤201:通过检测波束进行空闲信道检测CCA,其中,一个所述检测波束关联至少一个用于发送数据的发送波束。
这里,数据发送端可以采用无线通信技术与数据接收端进行数据通信。例如,数据发送端可以是采用蜂窝移动通信技术等无线通信技术进行通信的终端等UE,也可以是采用蜂窝移动通信技术等无线通信技术进行通信的 基站。
针对于数据发送端是UE,数据接收端可以是基站也可以是另一个UE。UE和基站可以在非授权频谱上进行空口通信。UE和UE可以在非授权频谱上采用直连链路,如sidelink等进行通信。
针对于数据发送端是基站,数据接收端可以是UE。UE和基站可以在非授权频谱上进行空口通信。
数据发送端可以通过波束赋形的方法得到用于发送数据的发送波束。不同的发送波束可以具有不同的指向性或覆盖范围等。数据发送端还可以通过波束赋形的方法得到用于进行CCA的检测波束,不同的检测波束可以具有不同的指向性或覆盖范围等。
检测波束的CCA结果可以用于表征检测波束关联的发送波束的占用情况。示例性的,检测波束的CCA结果指示信道未被占用,则可以表征检测波束关联的发送波束的信道未被占用。检测波束的CCA结果指示信道被占用,则可以表征检测波束关联的发送波束中,至少有一个发送波束的信道被占用。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
检测波束可以是空域上覆盖范围更宽的波束,发送波束是可以是空域上覆盖范围较窄的波束。如图3所示,一个检测波束的覆盖范围内可以包含一个或多个用于发送数据的发送波束。数据发送端可以根据与数据接收端的相对位置在多个发送波束之间切换并进行数据传输。
发送波束可以是用于承载上行信道的波束,也可以是用于承载下行信道的波束。例如,当UE作为数据发送端时,发送波束可以是用于承载物理上行共享信道(PUSCH,Physical Uplink Shared Channel),和/或物理上行控制信道(PUCCH,Physical Uplink Control Channel)等资源的波束。当基 站作为数据发送端时,发送波束可以是用于承载物理下行共享信道(PDSCH,Physical Downlink Shared Channel),和/或物理下行控制信道(PDCCH,Physical Downlink Control Channel)等资源的波束。
数据发送端可以通过检测波束进行CCA。数据发送端可以对检测波束覆盖范围内的的无线信号进行监听,判断检测波束的信道是否空闲。
由于检测波束的覆盖范围内可以包含一个或多个发送波束。当检测波束的信道空闲时,可以确定各发送波束的信道同样空闲。检测波束的覆盖范围内包含的一个或多个发送波束,可以至少包括在一定时间段内,数据发送端和数据接收端相对运动时,数据发送端所需要切换的波束。通过对检测波束进行CCA,数据发送端可以确定多个发送波束的信道占用情况,减小数据发送端和数据接收端在相对运动过程中对新切换发送波束进行CCA的几率,进而降低CCA的开销。
示例性的,当数据发送端为UE时,检测波束覆盖范围内可以包含有一个或多个用于上行数据的发送波束。UE可以对检测波束进行CCA,进而确定用于上行数据的各发送波束的信道占用情况。当数据发送端为基站时,检测波束覆盖范围内可以包含有一个或多个用于下行数据的发送波束。基站可以对检测波束进行CCA,进而确定用于下行数据的各发送波束的信道占用情况。
如此,可以只通过对关联于多个发送波束的检测波束进行CCA,就可以确定一个或多个发送波束的信道占用状况。一方面,提高了CCA的效率。另一方面,相对于逐个发送波束进行CCA,降低了CCA的开销。
在一个实施例中,如图4所示,所述方法还包括:
步骤202:响应于所述CCA的结果为所述检测波束未被占用,通过所述检测波束关联的至少一个所述发送波束发送数据。
当检测波束的CCA结果为信道未被占用时,则可以确定检测波束的覆 盖范围内的发送波束的信道未被占用。数据发送端可以利用检测波束的覆盖范围内的发送波束发送数据。数据发送端可以利用检测波束的覆盖范围内的一个或多个发送波束发送数据。
当检测波束的CCA结果为信道被占用时,仍然存在一个或多个发送波束信道未被占用的情况。数据发送端可以减小检测波束的覆盖范围,并对减小覆盖范围后的检测波束进行CCA。例如,当检测波束的CCA结果为信道被占用时,数据发送端可以将检测波束的覆盖范围调整到和调度的发送波束一致,即对调度的发送波束单独进行CCA,确定信道占用情况。
示例性的,当数据发送端为UE时,UE可以对检测波束进行CCA,如果检测波束的CCA结果为信道未被占用,则UE可以通过,通过检测波束的覆盖范围内的发送波束向基站上行数据。当数据发送端为基站时,基站可以对检测波束进行CCA,如果检测波束的CCA结果为信道未被占用,则基站可以通过检测波束的覆盖范围内的发送波束向UE下行数据。
在一个实施例中,所述通过所述检测波束关联的至少一个所述发送波束发送数据,包括:
在所述检测波束的最大信道占用时长MCOT内,通过所述检测波束关联的至少一个所述发送波束分别发送数据。
为了提高不同设备占用资源的公平性,可以预先设定检测波束的MCOT。数据发送端确定检测波束的信道未被占用时,可以在MCOT内发送数据。如果数据发送端在MCOT之外仍然需要占用信道,则需要再次对检测波束进行CCA,确定检测波束信道空闲后再占用发送波束的信道。
针对UE上行数据到基站的情况,可以由基站设定检测波束的MCOT,并由基站将MCOT发送给UE。
数据发送端可以同时占用多个发送波束的信道发送数据。数据发送端也可以采用在一个时间点只占用一个发送波束信道,连续通过多个发送波 束发送数据。
在一个实施例中,响应于通过所述检测波束关联的多个所述发送波束分别发送数据,时域相邻的两个用于发送数据的所述发送波束的时域位置连续,或者,时域相邻的两个用于发送数据的所述发送波束的时域位置的间隔小于预定时域间隔。
针对数据发送端采用在一个时间点只占用一个发送波束的信道,连续通过多个发送波束发送数据的情况,数据发送端占用多个发送波束信道的间隔需要满足一定条件,使得外部通信设备不能在据发送端占用多个发送波束的间隔内占用发送波束的信道资源。
数据发送端占用的时域相邻的两个发送波束信道的时域位置可以保持连续,即占用的两个发送波束的信道资源,如PUSCH和/或PUCCH等需要保持连续。
数据发送端占用的时域相邻的两个发送波束信道的时域位置的间隔小于预定时域间隔,即占用的两个发送波束的信道资源,如PUSCH和/或PUCCH等的间隔可以小于预定时域间隔。预定时域间隔可以基于外部通信设备判断发送波束信道未被占用所需的时间确定,例如,预定时域间隔可以是16uS。
在一个实施例中,所述方法还包括:
根据波束对应关系信息,确定所述检测波束所关联的所述发送波束,其中,所述波束对应关系信息,用于指示所述检测波束与所述检测波束所关联的至少一个所述发送波束。
波束对应关系信息可以由基站等预先设定。
波束对应关系信息可以指示一个检测波束与其覆盖范围内所包含的至少一个发送波束。
波束对应关系信息也可以指示多个检测波束与多个检测波束各自覆盖 范围内分别包含的至少一个发送波束。
基站和UE可以基于波束对应关系信息确定检测波束对应的发送波束或发送波束对应的检测波束。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,与所述检测波束所关联的至少一个所述发送波束的参考信号的标识。
在5G标准协议中,波束实际上是以参考信号来表征的。所谓不同的波束,在协议上的体现可以是不同的参考信号。不同参考信号的标识不同。
这里,波束对应关系信息可以指示一个检测波束与其覆盖范围内所包含的至少一个发送波束的参考信号的标识。
波束对应关系信息也可以指示多个检测波束与多个检测波束各自覆盖范围内分别包含的至少一个发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
这里,参考信号可以包括:SSB和CSI-RS等。波束对应关系信息可以可以指示检测波束与其覆盖范围内所包含的发送波束的SSB的索引和/或CSI-RS的ID。如此,可以明确指示出检测波束与其覆盖范围内所包含的发送波束。
在一个实施例中,所述方法还包括:
响应于所述数据发送端为用户设备UE,接收基站发送的所述波束对应关系信息。
基站可以向UE发送波束对应关系信息,波束对应关系信息可以包括:一个或多个检测波束,以及各检测波束覆盖范围内分别包含的一个或者多个发送波束。
在一个实施例中,所述接收基站发送的所述波束对应关系信息,包括:
接收携带有所述波束对应关系信息的无线资源控制RRC信令。
基站可以通过RRC信令向UE发送波束对应关系信息。波束对应关系信息可以采用现有的RRC信令进行传输,例如,利用现有RRC信令的预留比特位携带波束对应关系信息。也可以新增RRC信令专门用于携带波束对应关系信息。
示例性的,基站可以在向UE调度用于上行数据的信道资源之前发送波束对应关系信息。基站可以通过RRC信令发送波束对应关系信息。
在调度UE上行数据时,基站可以在调度DCI中指示PUSCH/PUCCH的发送波束、LBT方式。
UE接收到调度DCI,确定该PUSCH/PUCCH的发送波束。并根据波束对应关系信息确定发送波束对应的检测波束,并对该检测波束CCA。在CCA确定信道未被占用时,上行数据。
基站下行数据时,可以首先确定下行数据的的发送波束,并根据波束对应关系信息确定发送波束对应的检测波束,并对该检测波束CCA。在CCA确定信道未被占用时,下行数据。
如图5所示,本示例性实施例提供一种通信方法,通信方法可以应用于蜂窝移动通信***的基站中,包括:
步骤501:向用户设备UE发送波束对应关系信息,所述波束对应关系信息,用于指示检测波束和与所述检测波束关联的至少一个发送波束,其中,所述检测波束,用于供UE进行空闲信道检测CCA;
响应于所述检测波束的CCA结果为所述检测波束未被占用,所述发送波束用于发送数据。
这里,UE可以是采用蜂窝移动通信技术等无线通信技术进行通信的终端等UE,基站可以是采用蜂窝移动通信***中的接入网接口。UE和基站可以在非授权频谱上进行空口通信。
UE可以通过波束赋形的方法得到用于发送数据的发送波束。不同的发 送波束可以具有不同的指向性或覆盖范围等。UE还可以通过波束赋形的方法得到用于进行CCA的检测波束,不同的检测波束可以具有不同的指向性或覆盖范围等。
检测波束的CCA结果可以用于表征检测波束关联的发送波束的占用情况。示例性的,检测波束的CCA结果指示信道未被占用,则可以表征检测波束关联的发送波束的信道未被占用。检测波束的CCA结果指示信道被占用,则可以表征检测波束关联的发送波束中,至少有一个发送波束的信道被占用。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
检测波束可以是空域上覆盖范围更宽的波束,发送波束是可以是空域上覆盖范围较窄的波束。如图3所示,一个检测波束的覆盖范围内可以包含一个或多个用于发送数据的发送波束。数据发送端可以根据与数据接收端的相对位置在多个发送波束之间切换并进行数据传输。
发送波束可以是用于承载上行信道的波束,也可以是用于承载下行信道的波束。例如,当UE作为数据发送端时,发送波束可以是用于承载物理上行共享信道(PUSCH,Physical Uplink Shared Channel),和/或物理上行控制信道(PUCCH,Physical Uplink Control Channel)等资源的波束。当基站作为数据发送端时,发送波束可以是用于承载物理下行共享信道(PDSCH,Physical Downlink Shared Channel),和/或物理下行控制信道(PDCCH,Physical Downlink Control Channel)等资源的波束。
UE可以通过检测波束进行CCA。UE可以对检测波束覆盖范围内的的无线信号进行监听,判断检测波束的信道是否空闲。
由于检测波束的覆盖范围内可以包含一个或多个发送波束。当检测波束的信道空闲时,可以确定各发送波束的信道同样空闲。检测波束的覆盖 范围内包含的一个或多个发送波束,可以至少包括在一定时间段内,UE相对基站运动时,UE需要切换的波束。通过对检测波束进行CCA,UE可以确定多个发送波束的信道占用情况,减小数据UE在运动过程中对新切换发送波束进行CCA的几率,进而降低CCA的开销。
示例性的,检测波束覆盖范围内可以包含有一个或多个用于上行数据的发送波束。UE可以对检测波束进行CCA,进而确定用于上行数据的各发送波束的信道占用情况。
基站可以向UE发送波束对应关系信息,波束对应关系信息可以包括:一个或多个检测波束,以及各检测波束覆盖范围内分别包含的一个或者多个发送波束。
如此,可以只通过对关联于个发送波束的检测波束进行CCA,就可以确定一个或多个发送波束的信道占用状况。一方面,提高了CCA的效率。另一方面,相对于逐个发送波束进行CCA,降低了CCA的开销。
在一个实施例中,所述向UE发送波束对应关系信息,包括:
向所述UE发送携带有所述波束对应关系信息的无线资源控制RRC信令。
基站可以通过RRC信令向UE发送波束对应关系信息。波束对应关系信息可以采用现有的RRC信令进行传输,例如,利用现有RRC信令的预留比特位携带波束对应关系信息。也可以新增RRC信令专门用于携带波束对应关系信息。
基站可以在向UE调度用于上行数据的信道资源之前发送波束对应关系信息。基站可以通过RRC信令发送波束对应关系信息。
在调度UE上行数据时,基站可以在调度DCI中指示PUSCH/PUCCH的发送波束、LBT方式。
UE接收到调度DCI,确定该PUSCH/PUCCH的发送波束。并根据波束 对应关系信息确定发送波束对应的检测波束,并对该检测波束CCA。在CCA确定信道未被占用时,上行数据。
基站下行数据时,可以首先确定下行数据的的发送波束,并根据波束对应关系信息确定发送波束对应的检测波束,并对该检测波束CCA。在CCA确定信道未被占用时,下行数据。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,和与所述检测波束关联的至少一个发送波束的参考信号的标识。
在5G标准协议中,波束实际上是以参考信号来表征的。所谓不同的波束,在协议上的体现可以是不同的参考信号。不同参考信号的标识不同。
这里,波束对应关系信息可以指示一个检测波束与其覆盖范围内所包含的至少一个发送波束的参考信号的标识。
波束对应关系信息也可以指示多个检测波束与多个检测波束各自覆盖范围内分别包含的至少一个发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
这里,参考信号可以包括:SSB和CSI-RS等。波束对应关系信息可以可以指示检测波束与其覆盖范围内所包含的发送波束的SSB的索引和/或CSI-RS的ID。如此,可以明确指示出检测波束与其覆盖范围内所包含的发送波束。
以下结合上述任意实施例提供一个具体示例:
在5G标准协议中,波束可以以参考信号来表征的。不同的波束,在协议上的体现为不同的参考信号。例如不同的索引index的同步信号块(SSB,Synchronization Signal Block),不同ID的信道状态信息参考信号(CSI-RS,Channel Status Information-Reference Signal)均可以表示不同的波束。
基站可以通过高层信令,例如RRC层信令,为UE配置一个或者多个波 束集合(或者,参考信号ID集合),各个波束集合中包括:
1,一个检测波束
2,该个检测波束对应的一个或者多个发送波束
检测波束是一个空域上范围更宽的波束,发送波束是一个空域上范围较窄的波束。检测波束能将本集合中一个或者多个发送波束包含在内。检测波束本身也是默认的发射波束。
数据发送端可以使用检测波束来进行CCA,信道道检测成功之后,在随后的MCOT内,如果使用本集合内的多个发送波束分别发送数据时,就不需要因为切换了发送波束重新进行CCA,可以直接开始数据发送。因而能够降低LBT开销。
在UE侧,现有R16阶段的协议中,基站给UE的调度PUSCH的DCI中会包含PUSCH的发送波束,以及LBT方式,但并没有指明用于CCA检测的波束。
采用本发明实施例的方法,具体步骤可以包括:
1,首先需要高层配置。基站通过RRC层信令配置检测波束及其对应的多个发送波束。
2,在实际的PUSCH调度中:
基站侧:仍然按照R16的做法,基站只在调度DCI中指示PUSCH的发送波束、LBT方式,不需要指示检测波束。
UE侧:UE收到调度DCI,使用该PUSCH的发送波束对应的检测波束进行LBT。检测波束是根据高层配置确定的。获得上行信道后,在MCOT内仍然有后续待发送的PUSCH/PUCCH,如果其发送波束也对应于相同的检测波束,则可以直接发送,无需重新进行CCA。要求PUSCH/PUCCH时域连续,或者各上行信道之间的间隔小于一定门限值(例如16us)。否则,将会因为各信道之间的时间间隔过大而不得不重新进行信道检测。
协议中可以明确,允许这种检测波束和发送波束不相同的LBT方式。
本发明实施例还提供了一种通信装置,应用于无线通信的数据发送端中,如图6所示,所述通信装置100包括:检测模块110,其中,
所述检测模块110,配置为通过检测波束进行空闲信道检测CCA,其中,一个所述检测波束关联至少一个用于发送数据的发送波束。
在一个实施例中,所述装置100还包括:
第一发送模块120,配置为响应于所述CCA的结果为所述检测波束未被占用,通过所述检测波束关联的至少一个所述发送波束发送数据。
在一个实施例中,所述第一发送模块120,包括:
第一发送子模块121,配置为在所述检测波束的最大信道占用时长MCOT内,通过所述检测波束关联的至少一个所述发送波束分别发送数据。
在一个实施例中,响应于通过所述检测波束关联的多个所述发送波束分别发送数据,时域相邻的两个用于发送数据的所述发送波束的时域位置连续,或者,时域相邻的两个用于发送数据的所述发送波束的时域位置的间隔小于预定时域间隔。
在一个实施例中,所述装置100还包括:
确定模块130,配置为根据波束对应关系信息,确定所述检测波束所关联的所述发送波束,其中,所述波束对应关系信息,用于指示所述检测波束与所述检测波束所关联的至少一个所述发送波束。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,与所述检测波束所关联的至少一个所述发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
在一个实施例中,所述装置100还包括:
接收模块140,配置为响应于所述数据发送端为用户设备UE,接收基 站发送的所述波束对应关系信息。
在一个实施例中,所述接收模块140,包括:
接收子模块141,配置为接收携带有所述波束对应关系信息的无线资源控制RRC信令。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
本发明实施例还提供了一种通信装置,应用于无线通信的基站中,如图7所示,所述通信装置200包括:第二发送模块210,其中,
所述第二发送模块210,配置为向用户设备UE发送波束对应关系信息,所述波束对应关系信息,用于指示检测波束和与所述检测波束关联的至少一个发送波束,其中,所述检测波束,用于供UE进行空闲信道检测CCA;
响应于所述检测波束的CCA结果为所述检测波束未被占用,所述发送波束用于发送数据。
在一个实施例中,所述第二发送模块210,包括:
第二发送子模块211,配置为向所述UE发送携带有所述波束对应关系信息的无线资源控制RRC信令。
在一个实施例中,所述波束对应关系信息,用于指示所述检测波束,和与所述检测波束关联的至少一个发送波束的参考信号的标识。
在一个实施例中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
在一个实施例中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
在示例性实施例中,检测模块110、第一发送模块120、确定模块130、接收模块140和第二发送模块210等可以被一个或多个中央处理器(CPU,Central Processing Unit)、图形处理器(GPU,Graphics Processing Unit)、基 带处理器(BP,baseband processor)、应用专用集成电路(ASIC,Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD,Programmable Logic Device)、复杂可编程逻辑器件(CPLD,Complex Programmable Logic Device)、现场可编程门阵列(FPGA,Field-Programmable Gate Array)、通用处理器、控制器、微控制器(MCU,Micro Controller Unit)、微处理器(Microprocessor)、或其他电子元件实现,用于执行前述方法。
图8是根据一示例性实施例示出的一种用于通信的装置3000的框图。例如,装置3000可以是移动电话,计算机,数字广播终端,消息收发设备,游戏控制台,平板设备,医疗设备,健身设备,个人数字助理等。
参照图8,装置3000可以包括以下一个或多个组件:处理组件3002,存储器3004,电源组件3006,多媒体组件3008,音频组件3010,输入/输出(I/O)的接口3012,传感器组件3014,以及通信组件3016。
处理组件3002通常控制装置3000的整体操作,诸如与显示,电话呼叫,数据通信,相机操作和记录操作相关联的操作。处理组件3002可以包括一个或多个处理器3020来执行指令,以完成上述的方法的全部或部分步骤。此外,处理组件3002可以包括一个或多个模块,便于处理组件3002和其他组件之间的交互。例如,处理组件3002可以包括多媒体模块,以方便多媒体组件3008和处理组件3002之间的交互。
存储器3004被配置为存储各种类型的数据以支持在装置3000的操作。这些数据的示例包括用于在装置3000上操作的任何应用程序或方法的指令,联系人数据,电话簿数据,消息,图片,视频等。存储器3004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(SRAM),电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),可编程只读存储器(PROM),只读存储器(ROM),磁存储器,快闪存储器,磁盘或光盘。
电源组件3006为装置3000的各种组件提供电力。电源组件3006可以包括电源管理***,一个或多个电源,及其他与为装置3000生成、管理和分配电力相关联的组件。
多媒体组件3008包括在装置3000和用户之间的提供一个输出接口的屏幕。在一些实施例中,屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板,屏幕可以被实现为触摸屏,以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界,而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中,多媒体组件3008包括一个前置摄像头和/或后置摄像头。当装置3000处于操作模式,如拍摄模式或视频模式时,前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜***或具有焦距和光学变焦能力。
音频组件3010被配置为输出和/或输入音频信号。例如,音频组件3010包括一个麦克风(MIC),当装置3000处于操作模式,如呼叫模式、记录模式和语音识别模式时,麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器3004或经由通信组件3016发送。在一些实施例中,音频组件3010还包括一个扬声器,用于输出音频信号。
I/O接口3012为处理组件3002和***接口模块之间提供接口,上述***接口模块可以是键盘,点击轮,按钮等。这些按钮可包括但不限于:主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件3014包括一个或多个传感器,用于为装置3000提供各个方面的状态评估。例如,传感器组件3014可以检测到装置3000的打开/关闭状态,组件的相对定位,例如组件为装置3000的显示器和小键盘,传感器组件3014还可以检测装置3000或装置3000一个组件的位置改变,用户 与装置3000接触的存在或不存在,装置3000方位或加速/减速和装置3000的温度变化。传感器组件3014可以包括接近传感器,被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件3014还可以包括光传感器,如CMOS或CCD图像传感器,用于在成像应用中使用。在一些实施例中,该传感器组件3014还可以包括加速度传感器,陀螺仪传感器,磁传感器,压力传感器或温度传感器。
通信组件3016被配置为便于装置3000和其他设备之间有线或无线方式的通信。装置3000可以接入基于通信标准的无线网络,如Wi-Fi,2G或3G,或它们的组合。在一个示例性实施例中,通信组件3016经由广播信道接收来自外部广播管理***的广播信号或广播相关信息。在一个示例性实施例中,通信组件3016还包括近场通信(NFC)模块,以促进短程通信。例如,在NFC模块可基于射频识别(RFID)技术,红外数据协会(IrDA)技术,超宽带(UWB)技术,蓝牙(BT)技术和其他技术来实现。
在示例性实施例中,装置3000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现,用于执行上述方法。
在示例性实施例中,还提供了一种包括指令的非临时性计算机可读存储介质,例如包括指令的存储器3004,上述指令可由装置3000的处理器3020执行以完成上述方法。例如,非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的发明后,将容易想到本发明实施例的其它实施方案。本申请旨在涵盖本发明实施例的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本发明实施例 的一般性原理并包括本公开实施例未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本发明实施例的真正范围和精神由下面的权利要求指出。
应当理解的是,本发明实施例并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本发明实施例的范围仅由所附的权利要求来限制。
Claims (32)
- 一种通信方法,其中,应用于数据发送端,所述方法包括:通过检测波束进行空闲信道检测CCA,其中,一个所述检测波束关联至少一个用于发送数据的发送波束。
- 根据权利要求1所述的方法,其中,所述方法还包括:响应于所述CCA的结果为所述检测波束未被占用,通过所述检测波束关联的至少一个所述发送波束发送数据。
- 根据权利要求2所述的方法,其中,所述通过所述检测波束关联的至少一个所述发送波束发送数据,包括:在所述检测波束的最大信道占用时长MCOT内,通过所述检测波束关联的至少一个所述发送波束分别发送数据。
- 根据权利要求3所述的方法,其中,响应于通过所述检测波束关联的多个所述发送波束分别发送数据,时域相邻的两个用于发送数据的所述发送波束的时域位置连续,或者,时域相邻的两个用于发送数据的所述发送波束的时域位置的间隔小于预定时域间隔。
- 根据权利要求1至4任一项所述的方法,其中,所述方法还包括:根据波束对应关系信息,确定所述检测波束所关联的所述发送波束,其中,所述波束对应关系信息,用于指示所述检测波束与所述检测波束所关联的至少一个所述发送波束。
- 根据权利要求5所述的方法,其中,所述波束对应关系信息,用于指示所述检测波束,与所述检测波束所关联的至少一个所述发送波束的参考信号的标识。
- 根据权利要求6所述的方法,其中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
- 根据权利要求5所述的方法,其中,所述方法还包括:响应于所述数据发送端为用户设备UE,接收基站发送的所述波束对应关系信息。
- 根据权利要求8所述的方法,其中,所述接收基站发送的所述波束对应关系信息,包括:接收携带有所述波束对应关系信息的无线资源控制RRC信令。
- 根据权利要求5所述的方法,其中,所述方法还包括:与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
- 一种通信方法,其中,应用于基站,所述方法包括:向用户设备UE发送波束对应关系信息,所述波束对应关系信息,用于指示检测波束和与所述检测波束关联的至少一个发送波束,其中,所述检测波束,用于供UE进行空闲信道检测CCA;响应于所述检测波束的CCA结果为所述检测波束未被占用,所述发送波束用于发送数据。
- 根据权利要求11所述的方法,其中,所述向UE发送波束对应关系信息,包括:向所述UE发送携带有所述波束对应关系信息的无线资源控制RRC信令。
- 根据权利要求11或12所述的方法,其中,所述波束对应关系信息,用于指示所述检测波束,和与所述检测波束关联的至少一个发送波束的参考信号的标识。
- 根据权利要求13所述的方法,其中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
- 根据权利要求11或12所述的方法,其中,与所述检测波束关联 的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
- 一种通信装置,其中,应用于数据发送端,所述装置包括:检测模块,其中,所述检测模块,配置为通过检测波束进行空闲信道检测CCA,其中,一个所述检测波束关联至少一个用于发送数据的发送波束。
- 根据权利要求16所述的装置,其中,所述装置还包括:第一发送模块,配置为响应于所述CCA的结果为所述检测波束未被占用,通过所述检测波束关联的至少一个所述发送波束发送数据。
- 根据权利要求17所述的装置,其中,所述第一发送模块,包括:第一发送子模块,配置为在所述检测波束的最大信道占用时长MCOT内,通过所述检测波束关联的至少一个所述发送波束分别发送数据。
- 根据权利要求18所述的装置,其中,响应于通过所述检测波束关联的的多个所述发送波束分别发送数据,时域相邻的两个用于发送数据的所述发送波束的时域位置连续,或者,时域相邻的两个用于发送数据的所述发送波束的时域位置的间隔小于预定时域间隔。
- 根据权利要求16至19任一项所述的装置,其中,所述装置还包括:确定模块,配置为根据波束对应关系信息,确定所述检测波束所关联的所述发送波束,其中,所述波束对应关系信息,用于指示所述检测波束与所述检测波束所关联的至少一个所述发送波束。
- 根据权利要求20所述的装置,其中,所述波束对应关系信息,用于指示所述检测波束,与所述检测波束所关联的至少一个所述发送波束的参考信号的标识。
- 根据权利要求21所述的装置,其中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标 识ID。
- 根据权利要求20所述的装置,其中,所述装置还包括:接收模块,配置为响应于所述数据发送端为用户设备UE,接收基站发送的所述波束对应关系信息。
- 根据权利要求23所述的装置,其中,所述接收模块,包括:接收子模块,配置为接收携带有所述波束对应关系信息的无线资源控制RRC信令。
- 根据权利要求20所述的装置,其中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
- 一种通信装置,其中,应用于基站,所述装置包括:第二发送模块,其中,所述第二发送模块,配置为向用户设备UE发送波束对应关系信息,所述波束对应关系信息,用于指示检测波束和与所述检测波束关联的至少一个发送波束,其中,所述检测波束,用于供UE进行空闲信道检测CCA;响应于所述检测波束的CCA结果为所述检测波束未被占用,所述发送波束用于发送数据。
- 根据权利要求26所述的装置,其中,所述第二发送模块,包括:第二发送子模块,配置为向所述UE发送携带有所述波束对应关系信息的无线资源控制RRC信令。
- 根据权利要求26或27所述的装置,其中,所述波束对应关系信息,用于指示所述检测波束,和与所述检测波束关联的至少一个发送波束的参考信号的标识。
- 根据权利要求28所述的装置,其中,所述参考信号的标识包括以下至少一个:同步信号块SSB的索引、信道状态信息参考信号CSI-RS的标识ID。
- 根据权利要求26或27所述的装置,其中,与所述检测波束关联的所述至少一个发送波束,位于所述检测波束的覆盖范围内。
- 一种通信设备装置,包括处理器、存储器及存储在存储器上并能够由所述处理器运行的可执行程序,其中,所述处理器运行所述可执行程序时执行如权利要求1至10、或11至15任一项所述通信方法的步骤。
- 一种存储介质,其上存储由可执行程序,其中,所述可执行程序被处理器执行时实现如权利要求1至10、或11至15任一项所述通信方法的步骤。
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