WO2022141642A1 - 波束指示方法、装置及通信设备 - Google Patents

波束指示方法、装置及通信设备 Download PDF

Info

Publication number
WO2022141642A1
WO2022141642A1 PCT/CN2021/070182 CN2021070182W WO2022141642A1 WO 2022141642 A1 WO2022141642 A1 WO 2022141642A1 CN 2021070182 W CN2021070182 W CN 2021070182W WO 2022141642 A1 WO2022141642 A1 WO 2022141642A1
Authority
WO
WIPO (PCT)
Prior art keywords
trp
mac
tci state
corresponds
control resource
Prior art date
Application number
PCT/CN2021/070182
Other languages
English (en)
French (fr)
Inventor
李明菊
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to KR1020237026325A priority Critical patent/KR20230125315A/ko
Priority to CN202180000039.1A priority patent/CN113170467B/zh
Priority to PCT/CN2021/070182 priority patent/WO2022141642A1/zh
Priority to JP2023540971A priority patent/JP2024503824A/ja
Priority to EP21912425.2A priority patent/EP4274332A4/en
Publication of WO2022141642A1 publication Critical patent/WO2022141642A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • H04L5/0025Spatial division following the spatial signature of the channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868Hybrid systems, i.e. switching and combining
    • H04B7/088Hybrid systems, i.e. switching and combining using beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/046Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a beam indication method, apparatus, and communication device.
  • New Radio especially when the communication frequency band is in the frequency range (Frequency Range, FR) 2, because the high-frequency channel attenuates rapidly, in order to ensure the coverage, it is necessary to use beam (beam)-based send and receive.
  • Beam beam
  • a common beam can be used, that is, a common beam can be used to indicate a common beam.
  • a common beam can be used to indicate a common beam. for multiple channels and/or reference signals. For example, a common beam shared by at least two channels or at least two reference signals.
  • the beam indication method, apparatus and communication device proposed in the present disclosure are used to solve the technical problem that indication information sent through MAC or DCI cannot indicate the receiving beam of the indication information.
  • a beam indication method proposed by an embodiment of the present disclosure, applied to a terminal device includes:
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the initial beam of the second TRP
  • the first indication information is a first medium access control layer control element MAC CE
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, the second TRP The initial beam of corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI;
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is one TCI in a plurality of activated TCI state indexes included in the second MAC CE state index.
  • the first receive beam corresponds to a first TRP
  • the second receive beam corresponds to an update beam of the second TRP
  • the first receive beam corresponds to the second TRP
  • the second receive beam The updated beam corresponding to the second TRP.
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the multiple activated TCI state indexes carried by the fourth MAC CE include a TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the TRP identifier corresponding to the TCI state index and/or the corresponding control resource set pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index are the TRP identifier and/or the TRP indicated by the MAC CE that activates the TCI state index. / Or control the resource set pool index.
  • the method further includes:
  • the first receive beam is an initial receive beam of the control resource set CORESET#0 associated with the first TRP.
  • the method further includes:
  • second indication information is received, where the second indication information is used to determine the first receive beam.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP
  • the known receive beam corresponding to the third control resource set associated with the first TRP, is a third indication information indication sent by using CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • Another beam indication method proposed by an embodiment of the present disclosure, applied to a network device includes:
  • the first indication information is used to indicate the second receive beam of the terminal device, and the first transmit beam corresponds to the first receive beam of the terminal device;
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the first receiving beam is a beam of the first TRP
  • the second receiving beam is an initial beam of the second TRP.
  • the first indication information is a control element MAC CE of the first medium access control layer
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, the second TRP The initial beam of corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI;
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is one TCI in a plurality of activated TCI state indexes included in the second MAC CE state index.
  • the first receiving beam corresponds to the beam of the first TRP
  • the second receiving beam corresponds to the update beam of the second TRP
  • the first receiving beam corresponds to the beam of the second TRP
  • the second receive beam corresponds to the update beam of the second TRP.
  • the first indication information is a third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the multiple TCI state indexes carried by the fourth MAC CE include one TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, where the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index are the TRP identifier and/or the TRP indicated by the MAC CE that activates the TCI state index. / Or control the resource set pool index.
  • the first receive beam is an initial receive beam corresponding to the control resource set CORESET#0 associated with the first TRP.
  • the method further includes:
  • the second indication information is used to indicate the first receiving beam of the terminal device, and the known receiving beam corresponds to the first TRP.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to the third control resource set associated with the first TRP, through the The third indication information sent by CORESET#0 associated with the first TRP is indicated.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • a beam indication apparatus proposed by an embodiment of the present disclosure, applied to a terminal device includes:
  • a receiving module configured to use the first receiving beam to receive first indication information sent by the network device, where the first indication information is used to indicate the second receiving beam;
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to an initial beam of the second TRP
  • the first indication information is a first medium access control layer control element MAC CE
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, the second TRP The initial beam of corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI;
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is one TCI in a plurality of activated TCI state indexes included in the second MAC CE state index.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the update beam of the second TRP
  • the first receiving beam corresponds to the second TRP
  • the second receiving beam corresponds to an update beam of the second TRP
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the plurality of activated TCI state indexes carried by the fourth MAC CE include a TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • the device further includes:
  • a determining module configured to determine the first receiving beam
  • the first receive beam is an initial receive beam of the control resource set CORESET#0 associated with the first TRP.
  • the receiving module is also used for
  • second indication information is received, where the second indication information is used to determine the first receive beam.
  • the known receive beam is a receive beam of CORESET#0 associated with the first TRP; or, the known receive beam is sent according to CORESET#0 associated with the first TRP
  • the third indication information of is determined to be the receive beam corresponding to the third control resource set associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • Another beam indication apparatus proposed by an embodiment of the present disclosure, applied to a network device includes:
  • a sending module configured to send the first indication information to the terminal device by using the first sending beam
  • the first indication information is used to indicate the second receive beam of the terminal device, and the first transmit beam corresponds to the first receive beam of the terminal device;
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to an initial beam of the second TRP.
  • the first indication information is a control element MAC CE of the first medium access control layer; wherein, the first MAC CE is used to indicate the first control resource associated with the second TRP
  • the identifier of the set, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, and the initial beam of the second TRP corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI; wherein, the second MAC CE is used to indicate multiple activated TCI state indexes; the The first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is a TCI state in a plurality of activated TCI state indexes included in the second MAC CE index.
  • the first receive beam corresponds to the first TRP
  • the second receive beam corresponds to an update beam of the second TRP
  • the first receive beam corresponds to the second TRP TRP
  • the second receive beam corresponds to the update beam of the second TRP
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the multiple TCI state indexes carried by the fourth MAC CE include one TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • the first receive beam is an initial receive beam corresponding to the control resource set CORESET#0 associated with the first TRP.
  • the sending module is also used for
  • the second indication information is used to indicate the first receiving beam of the terminal device, and the known receiving beam corresponds to the first TRP.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to a third control resource set associated with the first TRP Correspondingly, it is indicated by the third indication information sent by CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • a terminal device which includes: a transceiver; a memory and a processor;
  • the memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory to perform the following operations:
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to an initial beam of the second TRP
  • the first indication information is a first medium access control layer control element MAC CE
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, the second TRP The initial beam of corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI;
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is one TCI in a plurality of activated TCI state indexes included in the second MAC CE state index.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the update beam of the second TRP
  • the first receiving beam corresponds to the second TRP
  • the second receiving beam corresponds to an update beam of the second TRP
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the plurality of activated TCI state indexes carried by the fourth MAC CE include a TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • it also includes:
  • the first receive beam is an initial receive beam of the control resource set CORESET#0 associated with the first TRP.
  • it also includes:
  • second indication information is received, where the second indication information is used to determine the first receive beam.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to a third control resource set associated with the first TRP Correspondingly, it is the third indication information indication sent by using the CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes: one of the identifiers corresponding to a TRP or Multiple TCI state indexes; or, one or more TCI state indexes corresponding to a control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes: multiple identifiers corresponding to multiple TRPs. TCI state indexes; wherein, each TCI state index has a corresponding identifier of the TRP; or, a plurality of TCI state indexes corresponding to a plurality of control resource set pool indexes; wherein, each TCI state index has a corresponding control resource Set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes: an indication corresponding to at least one TCI state index field, and the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • a network device proposed by another embodiment of the present disclosure includes: a transceiver; a memory and a processor;
  • the memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory to perform the following operations:
  • the first indication information is used to indicate the second receive beam of the terminal device, and the first transmit beam corresponds to the first receive beam of the terminal device;
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to an initial beam of the second TRP
  • the first indication information is a control element MAC CE of the first medium access control layer; wherein, the first MAC CE is used to indicate the first control resource associated with the second TRP
  • the identifier of the set, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, and the initial beam of the second TRP corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI; wherein, the second MAC CE is used to indicate multiple activated TCI state indexes; the The first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is a TCI state in a plurality of activated TCI state indexes included in the second MAC CE index.
  • the first receive beam corresponds to the first TRP
  • the second receive beam corresponds to an update beam of the second TRP
  • the first receive beam corresponds to the second TRP TRP
  • the second receive beam corresponds to the update beam of the second TRP
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the multiple TCI state indexes carried by the fourth MAC CE include one TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • the first receive beam is an initial receive beam corresponding to the control resource set CORESET#0 associated with the first TRP.
  • it also includes:
  • the second indication information is used to indicate the first receiving beam of the terminal device, and the known receiving beam corresponds to the first TRP.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to a third control resource set associated with the first TRP Correspondingly, it is indicated by the third indication information sent by CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • a communication system proposed by an embodiment of the present disclosure includes a terminal device and a network device.
  • the terminal device can implement the beam indication method described in the foregoing aspect
  • the network device can implement the beam indication method described in the foregoing aspect.
  • Another aspect of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the beam described in the foregoing aspect can be implemented instruction method.
  • Another aspect of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the computer-executable instructions described in another aspect can be implemented. Beam indication method.
  • Another aspect of the present disclosure provides a computer program product, which includes a computer program.
  • the computer program When the computer program is executed by a processor, the computer program can implement the beam indication method described in the foregoing aspect or another aspect.
  • the terminal device uses the first receiving beam to receive the first indication information, so as to determine the second receiving beam used when the subsequent terminal device communicates with the network device.
  • the first receiving beam corresponds to the first sending and receiving point TRP or the second TRP, and according to the first indication information, the second receiving beam corresponding to the second TRP is determined, so that the receiving network device uses the second TRP to transmit the indication beam.
  • the second receiving beam is used for receiving, which realizes the indication of the receiving beam of the indication information during the communication process, and improves the success rate of receiving the signaling.
  • FIG. 1 is a schematic flowchart of a beam indication method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a beam pointing device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another beam pointing device provided by an embodiment of the present disclosure.
  • FIG. 7 is a block diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • 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 words "if” and “if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • the initial beam is the first beam used by the terminal equipment and the transmitting and receiving point ((Transmission and Reception Point, TRP) for uplink and downlink transmission;
  • TRP Transmission and Reception Point
  • the known beam is the beam that has been used by the terminal equipment and the TRP for uplink and downlink transmission;
  • the update beam is the beam that the terminal equipment and TRP will use for uplink and downlink transmission;
  • TRP corresponding to the serving cell or neighboring cell of the terminal device
  • a control resource set (Control Resource Set, CORESET) is a configuration resource used for the downlink control channel PDCCH to send downlink control information (Downlink Control Information, DCI) signaling resources.
  • DCI Downlink Control Information
  • CORESET Pool Index Controls the resource set pool index (CORESET Pool Index).
  • a CORESET Pool Index value corresponds to one or more CORESETs, and each CORESET Pool Index corresponds to a TRP. That is, CORESETs corresponding to different CORESET Pool Index values are PDCCH channels used for different TRPs.
  • FIG. 1 is a schematic flowchart of a beam indication method provided by an embodiment of the present disclosure, which is applied to a terminal device.
  • Step 101 Use the first receiving beam to receive the first indication information sent by the network device.
  • the first indication information is used to indicate the second receiving beam, wherein the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP, and the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP.
  • the two receive beams correspond to the second TRP.
  • Terminal devices may be dispersed throughout the mobile communication system, and each terminal device may be stationary or mobile.
  • a terminal device may also be referred to by those skilled in the art as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, terminal device, wireless device, wireless communication device, remote device, mobile subscriber station, receiver.
  • the terminal device may be a cellular phone, a Personal Digital Assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) Stations, etc., can communicate with network devices in a mobile communication system.
  • PDA Personal Digital Assistant
  • WLL Wireless Local Loop
  • the network equipment is deployed in the wireless access network to provide wireless access functions for terminal equipment.
  • the network device may be a base station (Base Station, BS).
  • the network device may communicate wirelessly with the end device via one or more antennas.
  • a network device can provide communication coverage for its geographic area.
  • the base stations may include different types such as macro base stations, micro base stations, relay stations, and access points.
  • a base station may be referred to by those skilled in the art as a base station transceiver, wireless base station, access point, wireless transceiver, Basic Service Set (BSS), Extended Service Set (ESS) ), Node B (NodeB), evolved Node B (evolved NodeB, eNB or eNodeB) or some other appropriate term.
  • a base station is called a gNB.
  • a gNB a base station
  • the above-mentioned apparatuses for providing wireless communication functions for terminal devices are collectively referred to as network devices.
  • the terminal device uses the first receiving beam to receive the first indication information, so as to determine the second receiving beam used when the terminal device communicates with the network device subsequently.
  • the first receiving beam corresponds to the first sending and receiving point TRP or the second TRP, that is to say, what is received by using the first receiving beam may be the first indication information sent by the first TRP, or what is received may be sent by the second TRP the first indication information.
  • the first TRP informs the terminal device of the subsequent second receive beam through the first indication information
  • the second receive beam corresponds to the second TRP
  • the terminal device uses the first The second receiving beam receives the communication content sent by the second TRP, including the data on the shared channel or the signaling or reference signal on the control channel.
  • the second TRP passes the first indication
  • the information informs the terminal device that the subsequent second sending beam is still sent by the second TRP, and corresponding to the second TRP, the receiving beam used by the terminal device to receive the communication content sent by itself is updated.
  • the second receiving beam corresponding to the second TRP is determined, so that when subsequently receiving the signaling indicating the beam sent by the network device using the second TRP, the second receiving beam is used for receiving, and the indication of the receiving beam is completed.
  • the terminal device uses the first receiving beam to receive the first indication information sent by the network device, and in different scenarios, the beams of the second TRP corresponding to the second receiving beam indicated by the first indication information are different, The initial beam may be indicated, or the updated beam may be indicated, and three different scenarios will be described below.
  • the first receive beam corresponds to the first TRP
  • the second receive beam corresponds to the initial beam of the second TRP.
  • the terminal device uses the first receiving beam to receive the first indication information sent by the network device, where the first indication information indicates the initial beam corresponding to the second TRP.
  • the first TRP corresponds to the TRP of the serving cell
  • the second TRP may correspond to the TRP of the serving cell or a neighboring cell. Since the terminal device has not performed communication and transmission with the second TRP before, it does not know the initial beam for communication and transmission with the second TRP, and the first TRP needs to send indication information to indicate.
  • the signaling used to indicate the first indication information is also different, and two implementation manners are described below.
  • the first indication information is a control element (Control Element, CE, or called a control element) MAC CE of a first medium access control (Medium Access Control, MAC) layer.
  • Control Element, CE or called a control element
  • MAC CE of a first medium access control (Medium Access Control, MAC) layer.
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, a transmission configuration indicator (Transmission Configuration Indicator, TCI) state index corresponding to the initial beam of the second TRP, the initial beam of the second TRP
  • TCI Transmission Configuration Indicator
  • the beam corresponds to the first set of control resources.
  • the identifier of the first control resource set is, for example, CORESET#1, or CORESET#2, or CORESET#3, which is not limited in this embodiment.
  • the first MAC CE activates a TCI state index
  • the TCI state index corresponds to the initial beam of the second TRP
  • the initial beam of the second TRP corresponds to the first control resource set, that is to say
  • the first control resource set also corresponds to a TCI state index of the activation.
  • a TCI state index activated by the MAC CE can also be used for other control resource sets or Physical Downlink Shared Channel (PDSCH) or Physical Uplink Shared Channel (Physical Uplink Shared Channel) that belong to the same group as the first control resource set , PUSCH) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) or the transmission of reference signals, etc.
  • reference signals include channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), sounding reference signal (Sounding Reference) Signal, SRS), Positioning Reference Signal (Positioning Reference Signal, PRS), Demodulation Reference Signal (Demodulation Reference Signal, DMRS), etc. That is, a TCI state index activated by the MAC CE can correspond to a common beam, that is, the common beam.
  • the first indication information is the second MAC CE and the first downlink control information DCI, that is to say, the first indication information is based on the second MAC CE and the first downlink control information DCI.
  • the road control information DCI is jointly determined.
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP
  • a TCI state index is a plurality of TCI state indexes included in the second MAC CE
  • a TCI state index in the active TCI state index when the second MAC CE indicates that multiple TCI state indexes are activated, the first DCI is used to determine a TCI state index from the activated multiple TCI state indexes, and a TCI state index is determined as the initial value of the second TRP.
  • the TCI state index corresponding to the beam is used to indicate multiple activated TCI state indexes
  • a TCI state index indicated by the DCI can also be used for other control resource sets or physical downlink shared channels (Physical Downlink Shared Channel, PDSCH) or physical uplink shared channels (Physical Uplink Shared Channels) that belong to the same group as the first control resource set, PUSCH) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) or transmission of reference signals, etc.
  • reference signals include channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), sounding reference signal (Sounding Reference Signal) ,, SRS), positioning reference signal (Positioning Reference Signal, PRS), demodulation reference signal (Demodulation Reference Signal, DMRS), etc. That is, a TCI state index indicated by the DCI may correspond to a common beam, that is, a common beam.
  • the first receive beam used by the corresponding terminal device corresponds to the first TRP
  • the second receive beam corresponds to the update beam of the second TRP, that is, the update beam of the second TRP is also indicated by the first TRP sending the indication information
  • the first scenario and the second scenario are considered comprehensively, that is, the initial beam of the second TRP and the updated beam of the second TRP are both indicated by the first TRP sending the indication information.
  • the first TRP corresponds to the TRP of the serving cell
  • the second TRP may correspond to the TRP of the serving cell or a neighboring cell.
  • the first receiving beam used by the corresponding terminal device corresponds to the second TRP
  • the subsequent receiving beams still correspond to the second TRP
  • the corresponding second TRP updates the corresponding receiving beam
  • the terminal device The corresponding receive beam on the side is updated. Therefore, the first receiving beam corresponds to the second TRP
  • the second receiving beam corresponds to the update beam of the second TRP.
  • the first scenario and the third scenario are considered comprehensively, that is, the initial beam of the second TRP is indicated by the indication information sent by the first TRP, and the updated beam of the second TRP is indicated by the indication information sent by the second TRP.
  • the first TRP corresponds to the TRP of the serving cell
  • the second TRP may correspond to the TRP of the serving cell or a neighboring cell.
  • the signaling used to indicate the first indication information is also different, and two implementation manners are described below.
  • the first indication information is the third MAC CE, where the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state corresponding to the update beam of the second TRP index, the update beam of the second TRP corresponds to the second control resource set.
  • the identifier of the second control resource set is, for example, CORESET#1, CORESET#2, or CORESET#3, which is not limited in this embodiment.
  • a TCI state index activated by the MAC CE can also be used for other control resource sets or Physical Downlink Shared Channel (PDSCH) or Physical Uplink Shared Channel (Physical Uplink Shared Channel) that belong to the same group as the second control resource set , PUSCH) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) or the transmission of reference signals, etc.
  • reference signals include channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), sounding reference signal (Sounding Reference) Signal, SRS), positioning reference signal (Positioning Reference Signal, PRS), demodulation reference signal (Demodulation Reference Signal, DMRS) and so on. That is, a TCI state index activated by the MAC CE can correspond to a common beam, that is, the common beam.
  • the TCI state index is used to indicate the beam, that is to say, the corresponding beam can be determined according to the reference signal resource indicated by the TCI state index.
  • the identifier of the second control resource set may be the same as the identifier of the first control resource set, or may be different from the identifier of the first control resource set.
  • the identifier of the first control resource set is CORESET#0
  • the identifier of the second control resource set is CORESET#1.
  • the identifier of the first control resource set and the identifier of the second control resource set are both CORESET#0 or CORESET#0. CORESET#1. It is not limited in this embodiment.
  • the first indication information is a fourth MAC CE and a second DCI, where the fourth MAC CE is used to indicate multiple activated TCI state indexes, and the second DCI is used to indicate an update beam of the second TRP A corresponding one TCI state index, and one TCI state index is one TCI state index among a plurality of activated TCI state indexes contained in the fourth MAC CE.
  • a TCI state index indicated by the DCI can also be used for other control resource sets or Physical Downlink Shared Channel (PDSCH) or Physical Uplink Shared Channel (Physical Uplink Shared Channel) belonging to the same group as the second control resource set, PUSCH) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) or transmission of reference signals, etc.
  • reference signals include channel state information reference signal (Channel State Information Reference Signal, CSI-RS), sounding reference signal (Sounding Reference Signal, SRS), Positioning Reference Signal (Positioning Reference Signal, PRS), Demodulation Reference Signal (Demodulation Reference Signal, DMRS), etc. That is, a TCI state index indicated by the DCI may correspond to a common beam, that is, a common beam.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes:
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes:
  • TCI state indexes corresponding to the identifiers of multiple TRPs wherein each TCI state index has the identifier of the corresponding TRP; or, multiple TCI state indexes corresponding to multiple control resource set pool indexes, wherein each TCI state index An index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes:
  • the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • the first indication field corresponds to the first TRP, such as the indication field If it is 0, it means that there is no TCI state index in the MAC CE (the activated TCI field of the first TRP), that is, the TCI state corresponding to the first TRP is not activated.
  • the second indication field corresponds to the second TRP. For example, if the indication field is 1, it means that there is a TCI state index in the MAC CE (the activated TCI field of the second TRP), that is, the TCI state corresponding to the second TRP is activated.
  • the MAC CE when the MAC CE indicates multiple activated TCI state indexes, when indicating the initial beam of the second TRP, one MAC CE is required to indicate the multiple TCI state indexes and one DCI to indicate the initial beam of the second TRP A corresponding TCI state index; further, when it is necessary to indicate the update beam of the second TRP, another MAC CE needs to indicate a plurality of TCI state indexes, and a DCI indicates a TCI state index corresponding to the update beam of the second TRP, also That is to say, after the initial beam of the second TRP is indicated, and the subsequent update beam is indicated, two MAC CEs are required. In order to save the signaling overhead, the MAC CEs are combined.
  • the multiple activated TCI state indexes carried by the fourth MAC CE in this embodiment include a TCI state index corresponding to the initial beam of the second TRP, that is to say, the index carried by the fourth MAC CE
  • the plurality of activated TCI state indexes include at least a TCI state index corresponding to an initial beam and a TCI state index corresponding to an update beam, so that when the initial beam of the second TRP needs to be indicated, it is only necessary to send DCI, and from the fourth MAC
  • the multiple activated TCI state indexes carried by the CE indicate a TCI state index corresponding to the initial beam of the second TRP; or DCI is not required to indicate the initial beam of the second TRP, and the multiple activated TCIs in the fourth MAC CE are directly
  • the specified TCI state index in the state index is identified as the initial beam of the second TRP.
  • the fourth MAC CE gives the mapping relationship between the codepoint (codepoint) of the TCI indication field of the DCI and the TCI state combination, and the TCI state combination contains a Or 2 TCI states, and the specified TCI state index is a TCI state index in the TCI state combination corresponding to the specified DCI codepoint, for example, the specified DCI codepoint is the codepoint with the smallest codepoint value.
  • the update beam of the second TRP needs to be indicated subsequently, another DCI is sent to indicate one TCI state index among the plurality of activated TCI state indexes in the fourth MAC CE corresponding to the update beam of the second TRP.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the initial beam of the second TRP.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the first TRP.
  • the beam corresponds to the update beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, where the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set pool index. That is to say, the target indication field indicates which TRP and/or which control resource set pool the TCI state index corresponds to.
  • each control resource set pool index has a corresponding relationship with a TRP, and if the control resource set pool index is determined, which TRP corresponds to is determined, for example, the corresponding first TRP or the second TRP.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index. That is to say, different TCI state indexes have the identifier of a corresponding TRP, that is, different TRP identifiers have different corresponding TCI state indexes. For example, if the TCI state indexes corresponding to the first TRP are 1 and 2, then the second TRP corresponds to The TCI state indices are 3 and 4. Therefore, according to the identifier of a preset TRP corresponding to the TCI state index, it can be determined which TRP the corresponding TRP is, for example, the first TRP or the second TRP.
  • different TCI state indexes have a corresponding control resource set pool index, and according to a preset control resource set pool index corresponding to the TCI state index, it can be determined which TRP the corresponding TRP is, for example, the first TRP or the second TRP TRP.
  • each control resource set pool index has a corresponding relationship with a TRP, and if the control resource set pool index is determined, which TRP corresponds to is determined, for example, the corresponding first TRP or the second TRP.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index are the TRP identifier and/or control indicated by the MAC CE that activates the TCI state index. Resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI is the TRP identifier indicated by the MAC CE that activates the TCI state index, that is, It is said that the MAC CE indicates the TRP identity.
  • the bit positions of the TCI state indexes for activating different TRPs are set differently, and according to the bit positions, it can be determined which TRP TCI state index belongs to which TRP is activated.
  • the corresponding control resource set pool index in the first DCI is the control resource set pool index indicated by the MAC CE that activates the TCI state index.
  • the MAC CE format contains a CORESET ID, and each CORESET ID corresponds to a unique control resource set pool index, so the TRP corresponding to the TCI state index can be determined according to the CORESET ID.
  • different bit values may also be set to indicate whether the TCI state index of each TRP is activated, and the TCI state index of which TRP is activated.
  • FIG. 2 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure. The method is applied to a terminal device. As shown in FIG. 2 , the method includes the following steps:
  • Step 201 determining a first receiving beam.
  • the first receive beam is an initial receive beam of the control resource set CORESET#0 associated with the first TRP.
  • the initial receiving beam is the beam first used by the terminal device and the first TRP for uplink and downlink transmission.
  • the initial receiving beam of CORESET#0 associated with the first TRP may be determined by the terminal device according to the value of the reference signal receiving power (Reference Signal Receiving Power, RSRP) of the synchronization signal block (Synchronization Signal and PBCH Block, SSB) sent by the detection network device.
  • RSRP Reference Signal Receiving Power
  • SSB Synchronization Signal and PBCH Block
  • the terminal device detects that the value of RSRP exceeds the threshold value, it will use the PRACH resource corresponding to the SSB to initiate random access, that is to say, the receiving beam corresponding to the SSB is used as the initial receiving beam of CORESET#0, thus determining first receive beam.
  • a known receive beam corresponding to the first TRP is used to receive second indication information, where the second indication information is used to indicate the first receive beam. That is, the second indication information is received by using a known receive beam corresponding to the first TRP, and the second indication information indicates the first receive beam.
  • the known receiving beam is the beam that has been used by the terminal device when receiving the downlink transmission sent by the first TRP.
  • the known receiving beam corresponds to CORESET#0 associated with the first TRP, that is to say, the known beam is the RSRP value of the synchronization signal block SSB sent by the terminal device detected by the network device.
  • the beam corresponding to CORESET #0 determined when the value is greater than the threshold.
  • the receiving beam, corresponding to the third control resource set associated with the first TRP is the third indication information indication sent by using CORESET#0 associated with the first TRP.
  • Step 202 Use the first receiving beam to receive the first indication information sent by the network device, where the first indication information is used to indicate the second receiving beam, the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP, and the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP.
  • the two receive beams correspond to the second TRP.
  • step 202 reference may be made to the explanations in any of the foregoing embodiments, and the principles are the same, which will not be repeated here.
  • the terminal device uses the first receive beam to receive the first indication information, so as to determine the second receive beam used when the terminal device communicates with the network device subsequently.
  • the first receiving beam corresponds to the first sending and receiving point TRP or the second TRP, that is to say, the first receiving beam may be a receiving beam used for receiving the first indication information sent by the first TRP, or a receiving beam used for receiving The receiving beam used when the second TRP sends the first indication information.
  • the second receiving beam corresponding to the second TRP is determined, so that when the receiving network device uses the second TRP to send the indication signaling, the second receiving beam is used for receiving, the indication of the receiving beam is completed, and the improvement is improved. Signal reception success rate.
  • FIG. 3 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure, which is applied to a network device.
  • the method includes the following steps:
  • Step 301 Use the first transmission beam to send first indication information to the terminal device, where the first indication information is used to indicate the second receive beam of the terminal device, the first transmit beam corresponds to the first receive beam of the terminal device, the first The receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP, and the second receiving beam corresponds to the second TRP.
  • the beam indication method in the embodiment of the present disclosure can be applied to any network device.
  • the network equipment is deployed in the wireless access network to provide wireless access functions for terminal equipment.
  • the network device may be a base station (Base Station, BS).
  • the network device may communicate wirelessly with the end device via one or more antennas.
  • a network device can provide communication coverage for its geographic area.
  • the base stations may include different types such as macro base stations, micro base stations, relay stations, and access points.
  • a base station may be referred to by those skilled in the art as a base station transceiver, wireless base station, access point, wireless transceiver, Basic Service Set (BSS), Extended Service Set (ESS) ), Node B (NodeB), evolved Node B (evolved NodeB, eNB or eNodeB) or some other appropriate term.
  • BSS Basic Service Set
  • ESS Extended Service Set
  • NodeB Node B
  • evolved Node B evolved Node B
  • evolved NodeB evolved NodeB
  • eNB evolved Node B
  • gNB evolved Node B
  • network devices for convenience of description, in the embodiments of the present disclosure, the above-mentioned apparatuses for providing wireless communication functions for terminal devices are collectively referred to as network devices.
  • terminal devices may be scattered throughout the mobile communication system, and each terminal device may be stationary or mobile.
  • a terminal device may also be referred to by those skilled in the art as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, terminal device, wireless device, wireless communication device, remote device, mobile subscriber station, receiver.
  • the terminal device may be a cellular phone, a Personal Digital Assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) Stations, etc., can communicate with network devices in a mobile communication system.
  • PDA Personal Digital Assistant
  • WLL Wireless Local Loop
  • the network device sends the first indication information to the terminal device by using the first transmission beam, so that the terminal device determines the second receive beam according to the first indication information, where the second receive beam is the first After indicating the information, the receiving beam used when communicating with the network device again.
  • the first transmit beam corresponds to the first receive beam of the terminal device, wherein the first receive beam corresponds to the first transmit and receive point TRP or the second TRP, that is to say, the first receive beam may be the first receive beam.
  • the first indication information sent by the TRP, or the first indication information sent by the second TRP is received.
  • the first TRP informs the terminal device of the subsequent second receive beam through the first indication information, and the second receive beam corresponds to the second TRP.
  • the corresponding terminal device does not receive the second TRP.
  • the received beam used when sending the communication content is updated.
  • the second receiving beam of the terminal device is determined, so that when the network device uses the second TRP to send signaling indicating the beam, the terminal device uses the second receiving beam to receive, and the receiving beam of the terminal device is completed.
  • the instruction realizes that in the communication process, when the TRP is switched, or the TRP's own transmit beam needs to be updated, the beam can be switched, which improves the success rate of signaling reception.
  • the network device sends the first indication information to the terminal device using the first transmission beam, and in different scenarios, the first reception beam corresponds to the first transmission and reception point TRP or the second TRP, and the first indication information indicates The beams of the second TRP corresponding to the second transmit beams of , are different, and may indicate an initial beam or an updated beam.
  • the first receiving beam corresponds to the beam of the first TRP
  • the second receiving beam corresponds to the initial beam of the second TRP.
  • the network device sends the first indication information to the terminal device by using the first transmission beam of the first TRP, where the first indication information indicates the initial beam corresponding to the second TRP.
  • the first TRP corresponds to the TRP of the serving cell
  • the second TRP may correspond to the TRP of the serving cell or a neighboring cell. Since the terminal device has not communicated and transmitted with the second TRP before, it does not know the initial beam for communication and transmission with the second TRP, and the first TRP needs to send the first indication information to indicate.
  • the signaling used to indicate the first indication information is also different, and two implementation manners are described below.
  • the first indication information is a control element (Control Element, CE) MAC CE of a first medium access control (Medium Access Control, MAC) layer, or a first medium access control layer
  • the control unit MAC CE is a control element (Control Element, CE) MAC CE of a first medium access control (Medium Access Control, MAC) layer, or a first medium access control layer
  • the control unit MAC CE is a control element (Control Element, CE) MAC CE of a first medium access control (Medium Access Control, MAC) layer, or a first medium access control layer.
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, the initial beam of the second TRP and the first control resource set corresponds.
  • the identifier of the first control resource set is, for example, CORESET#1, CORESET#2, or CORESET#3, which is not limited in this embodiment.
  • the first MAC CE activates a TCI state index
  • the TCI state index corresponds to the initial beam of the second TRP
  • the initial beam of the second TRP corresponds to the first control resource set, that is to say
  • the first control resource set also corresponds to a TCI state index of the activation.
  • a TCI state index activated by the MAC CE can also be used for other control resource sets belonging to the same group as the first control resource set or a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) or transmission of reference signals, etc.
  • reference signals include channel state information reference signal (Channel State Information Reference Signal, CSI-RS), sounding reference signal (Sounding Reference Signal, SRS), Positioning Reference Signal (Positioning Reference Signal, PRS), Demodulation Reference Signal (Demodulation Reference Signal, DMRS), etc. That is, a TCI state index activated by the MAC CE can correspond to a common beam, that is, the common beam.
  • the first indication information is the second MAC CE and the first downlink control information DCI, that is to say, the first indication information is based on the second MAC CE and the first downlink control information DCI.
  • the road control information DCI is jointly determined.
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP
  • a TCI state index is a plurality of TCI state indexes included in the second MAC CE
  • a TCI state index in the active TCI state index when the second MAC CE indicates that multiple TCI state indexes are activated, the first DCI is used to determine a TCI state index from the activated multiple TCI state indexes, and a TCI state index is determined as the initial value of the second TRP.
  • the TCI state index corresponding to the beam is used to indicate multiple activated TCI state indexes
  • a TCI state index indicated by the DCI can also be used for other control resource sets or Physical Downlink Shared Channel (PDSCH) or Physical Uplink Shared Channel (PUSCH) that belong to the same group as the first control resource set ) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) or transmission of reference signals, etc.
  • reference signals include channel state information reference signal (Channel State Information Reference Signal, CSI-RS), sounding reference signal (Sounding Reference Signal, SRS) ), positioning reference signal (Positioning Reference Signal, PRS), demodulation reference signal (Demodulation Reference Signal, DMRS), etc. That is, a TCI state index indicated by the DCI may correspond to a common beam, that is, a common beam.
  • the first receive beam corresponds to the beam of the first TRP
  • the second receive beam corresponds to the update beam of the second TRP, that is, the update beam of the second TRP is also indicated by the first TRP sending the indication information.
  • the first scenario and the second scenario are considered comprehensively, that is, the initial beam of the second TRP and the updated beam of the second TRP are both indicated by the first indication information sent by the first TRP.
  • the first TRP corresponds to the TRP of the serving cell
  • the second TRP may correspond to the TRP of the serving cell or a neighboring cell.
  • the first receiving beam corresponds to the second TRP
  • the second receiving beam corresponds to the updated beam of the second TRP.
  • the first scenario and the third scenario are considered comprehensively, that is, the initial beam of the second TRP is sent by the first TRP. It is indicated by the indication information, and the update beam of the second TRP is indicated by the second TRP sending the first indication information.
  • the first TRP corresponds to the TRP of the serving cell
  • the second TRP may correspond to the TRP of the serving cell or a neighboring cell.
  • the signaling used to indicate the first indication information is also different, and two implementation manners are described below.
  • the first indication information is the third MAC CE, where the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state corresponding to the update beam of the second TRP index, the update beam of the second TRP corresponds to the second control resource set.
  • the identifier of the second control resource set is, for example, CORESET#1, CORESET#2, or CORESET#3, which is not limited in this embodiment.
  • a TCI state index activated by the MAC CE can also be used for other control resource sets or Physical Downlink Shared Channel (PDSCH) or Physical Uplink Shared Channel (Physical Uplink Shared Channel) that belong to the same group as the second control resource set , PUSCH) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) or reference signal transmission, reference signal includes channel state information reference signal (Channel State Information Reference Signal, CSI-RS), sounding reference signal (Sounding Reference Signal) , SRS), positioning reference signal (Positioning Reference Signal, PRS), demodulation reference signal (Demodulation Reference Signal, DMRS), etc. That is, a TCI state index activated by the MAC CE can correspond to a common beam, that is, the common beam.
  • CSI-RS Channel State Information Reference Signal
  • SRS Sounding reference signal
  • PRS positioning reference signal
  • DMRS demodulation reference signal
  • the TCI state index is used to indicate the beam, that is to say, the corresponding beam can be determined according to the reference signal resource indicated by the TCI state index.
  • the identifier of the second control resource set may be the same as the identifier of the first control resource set, or may be different from the identifier of the first control resource set.
  • the identifier of the first control resource set is CORESET#0
  • the identifier of the second control resource set is CORESET#1.
  • the identifier of the first control resource set and the identifier of the second control resource set are both CORESET#0 or CORESET#0. CORESET#1. It is not limited in this embodiment.
  • the first indication information is a fourth MAC CE and a second DCI, where the fourth MAC CE is used to indicate multiple activated TCI state indexes, and the second DCI is used to indicate an update beam of the second TRP A corresponding one TCI state index, and one TCI state index is one TCI state index among a plurality of activated TCI state indexes contained in the fourth MAC CE.
  • a TCI state index indicated by the DCI can also be used for other control resource sets or Physical Downlink Shared Channel (PDSCH) or Physical Uplink Shared Channel (Physical Uplink Shared Channel) belonging to the same group as the second control resource set, Transmission of PUSCH) or physical uplink control channel (PhysicalUplink Control Channel, PUCCH) or reference signal
  • reference signal includes channel state information reference signal (Channel State Information Reference Signal, CSI-RS), sounding reference signal (Sounding Reference Signal, SRS) ), positioning reference signal (Positioning Reference Signal, PRS), demodulation reference signal (Demodulation Reference Signal, DMRS), etc. That is, a TCI state index indicated by the DCI may correspond to a common beam, that is, a common beam.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes:
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes:
  • TCI state indexes corresponding to the identifiers of multiple TRPs wherein each TCI state index has the identifier of the corresponding TRP; or, multiple TCI state indexes corresponding to multiple control resource set pool indexes, wherein each TCI state index An index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes:
  • the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • the first indication field corresponds to the first TRP
  • the indication field is 0 means that there is no TCI state index in the MAC CE (the activated TCI field of the first TRP), that is, the TCI state corresponding to the first TRP is not activated.
  • the second indication field corresponds to the second TRP, and the indication field is 1, which means that there is a TCI state index in the MAC CE (the activated TCI field of the second TRP), that is, the TCI state corresponding to the second TRP is activated.
  • the MAC CE when the MAC CE indicates multiple activated TCI state indexes, when indicating the initial beam of the second TRP, one MAC CE is required to indicate multiple TCI state indexes, and one DCI is required to indicate the initial beam of the second TRP.
  • a TCI state index corresponding to the beam further, when the update beam of the second TRP needs to be indicated, another MAC CE is required to indicate a plurality of TCI state indexes, and a DCI indicates a TCI state index corresponding to the update beam of the second TRP, That is to say, after the initial beam of the second TRP is indicated, and the subsequent update beam is indicated, two MAC CEs are required. In order to save the signaling overhead, the MAC CEs are combined.
  • the multiple activated TCI state indexes carried by the fourth MAC CE in this embodiment include a TCI state index corresponding to the initial beam of the second TRP, that is to say, the index carried by the fourth MAC CE
  • the plurality of activated TCI state indexes include at least a TCI state index corresponding to an initial beam and a TCI state index corresponding to an update beam, so that when the initial beam of the second TRP needs to be indicated, it is only necessary to send DCI, and from the fourth MAC
  • the multiple activated TCI state indexes carried by the CE indicate a TCI state index corresponding to the initial beam of the second TRP; or DCI is not required to indicate the initial beam of the second TRP, and the multiple activated TCIs in the fourth MAC CE are directly
  • the specified TCI state index in the state index is identified as the initial beam of the second TRP.
  • the fourth MAC CE gives the mapping relationship between the codepoint of the TCI indication field of the DCI and the TCI state combination, and the TCI state combination contains one or two TCIs state, and the specified TCI state index is a TCI state index in the TCI state combination corresponding to the specified DCI codepoint, for example, the specified DCI codepoint is the codepoint with the smallest codepoint value.
  • another DCI is sent to indicate one TCI state index among the plurality of activated TCI state indexes in the fourth MAC CE corresponding to the update beam of the second TRP.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the initial beam of the second TRP.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the first TRP.
  • the beam corresponds to the update beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, where the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set pool index. That is to say, the target indication field indicates which TRP and/or which control resource set pool the TCI state index corresponds to.
  • each control resource set pool index has a corresponding relationship with a TRP, and if the control resource set pool index is determined, which TRP corresponds to is determined, for example, the corresponding first TRP or the second TRP.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index. That is to say, different TCI state indexes have the identifier of a corresponding TRP, that is, different TRP identifiers have different corresponding TCI state indexes. For example, if the TCI state indexes corresponding to the first TRP are 1 and 2, then the second TRP corresponds to The TCI state indices are 3 and 4. Therefore, according to the identifier of a preset TRP corresponding to the TCI state index, it can be determined which TRP the corresponding TRP is, for example, the first TRP or the second TRP.
  • different TCI state indexes have a corresponding control resource set pool index, and according to a preset control resource set pool index corresponding to the TCI state index, it can be determined which TRP the corresponding TRP is, for example, the first TRP or the second TRP TRP.
  • each control resource set pool index has a corresponding relationship with a TRP, and if the control resource set pool index is determined, which TRP corresponds to is determined, for example, the corresponding first TRP or the second TRP.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index are the TRP identifier and/or control indicated by the MAC CE that activates the TCI state index. Resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI is the TRP identifier indicated by the MAC CE that activates the TCI state index, that is to say, the MAC CE indicates TRP logo.
  • the bit positions of the TCI state indexes for activating different TRPs are set differently, and according to the bit positions, it can be determined which TRP TCI state index belongs to which TRP is activated.
  • the corresponding control resource set pool index in the first DCI is the control resource set pool index indicated by the MAC CE that activates the TCI state index.
  • the MAC CE format contains a CORESET ID, and each CORESET ID corresponds to a unique control resource set pool index, so the TRP corresponding to the TCI state index can be determined according to the CORESET ID.
  • different bit values may also be set to indicate whether the TCI state index of each TRP is activated, and the TCI state index of which TRP is activated.
  • the first indication information is sent to the terminal device by using the first transmit beam, where the first transmit beam corresponds to the first receive beam, that is, the terminal device uses the first receive beam to receive the first indication information .
  • the first receiving beam is the initial receiving beam corresponding to the control resource set CORESET#0 associated with the first TRP.
  • the initial receiving beam is the beam first used by the terminal device and the first TRP for uplink and downlink transmission.
  • the initial receiving beam corresponding to CORESET#0 associated with the first TRP may be determined by the terminal device according to the value of RSRP of the synchronization signal block SSB sent by the detection network device.
  • the terminal device detects that the value of RSRP exceeds the threshold, the The PRACH resource corresponding to the SSB initiates random access, that is to say, the receiving beam corresponding to the SSB is used as the initial ending beam of CORESET#0, thereby determining the first receiving beam.
  • FIG. 4 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure, which is applied to a network device, and illustrates another method for indicating a first receiving beam of a terminal device. As shown in FIG. 2 , the method includes the following step:
  • Step 401 Send second indication information to the terminal device by using the transmit beam corresponding to the known receive beam of the terminal device.
  • the second indication information is used to indicate the first receiving beam of the terminal device, and it is known that the receiving beam corresponds to the first TRP.
  • the known receive beam is the receive beam that has been used by the terminal device when the first TRP sends downlink transmission to the terminal device.
  • the known receiving beam corresponds to CORESET#0 associated with the first TRP, that is to say, the known receiving beam is the value of RSRP of the synchronization signal block SSB sent by the terminal device detected by the network device.
  • the beam corresponding to CORESET #0 is determined when the value is greater than the threshold value.
  • the known receiving beam corresponds to the third control resource set associated with the first TRP, and is indicated by the third indication information sent by CORESET#0 associated with the first TRP.
  • Step 402 using the first transmission beam to send the first indication information to the terminal device.
  • step 402 reference may be made to the explanations in any of the foregoing embodiments, and the principles are the same, which will not be repeated here.
  • the network device uses the first transmit beam to send the first indication information to the terminal device to determine the second receive beam used by the terminal device when the terminal device communicates with the network device subsequently.
  • the first receiving beam corresponds to the first sending and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP. Therefore, when the network device uses the second TRP to send signaling indicating the beam, the terminal device uses the second receiving beam. After receiving, the instruction of the terminal equipment to receive the beam is completed, and the success rate of signaling reception is improved.
  • the present disclosure also provides a beam indication apparatus. Since the beam indication apparatus provided by the embodiments of the present disclosure corresponds to the methods provided by the above-mentioned embodiments, the The implementation of the method is also applicable to the beam indicating device provided in this embodiment, which is not described in detail in this embodiment.
  • FIG. 5 is a schematic structural diagram of a beam pointing device 110 according to an embodiment of the present disclosure.
  • the apparatus is applied to terminal equipment.
  • the beam indicating device 110 includes: a receiving module 51 .
  • a receiving module 51 configured to use the first receiving beam to receive the first indication information sent by the network device, where the first indication information is used to indicate the second receiving beam;
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the initial beam of the second TRP
  • the first indication information is a first medium access control layer control element MAC CE
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, the second TRP The initial beam of corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI;
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is one TCI in a plurality of activated TCI state indexes included in the second MAC CE state index.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the update beam of the second TRP
  • the first receiving beam corresponds to the second TRP
  • the second receiving beam corresponds to an update beam of the second TRP
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the plurality of activated TCI state indexes carried by the fourth MAC CE include a TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • the device further includes:
  • a determining module configured to determine the first receiving beam
  • the first receive beam is an initial receive beam of the control resource set CORESET#0 associated with the first TRP.
  • the above receiving module 51 is also used for
  • second indication information is received, where the second indication information is used to determine the first receive beam.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to the third control resource set associated with the first TRP, is the third indication information indication sent by using the CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • the terminal device uses the first receive beam to receive the first indication information, so as to determine the second receive beam used when the terminal device communicates with the network device subsequently.
  • the first receiving beam corresponds to the first sending and receiving point TRP or the second TRP, that is to say, the first receiving beam may be a receiving beam used for receiving the first indication information sent by the first TRP, or a receiving beam used for receiving The receiving beam used when the second TRP sends the first indication information.
  • the second receiving beam corresponding to the second TRP is determined, so that when the receiving network device uses the second TRP to send the indication signaling, the second receiving beam is used for receiving, the indication of the receiving beam is completed, and the improvement is improved. The success rate of signaling reception.
  • the present disclosure further provides a beam indication apparatus. Since the beam indication apparatus provided by the embodiments of the present disclosure corresponds to the beam indication methods provided by the above-mentioned embodiments, the The implementation of the beam indication method is also applicable to the beam indication apparatus provided in this embodiment, which will not be described in detail in this embodiment.
  • FIG. 6 is a schematic structural diagram of a beam pointing device 120 according to an embodiment of the present disclosure.
  • the apparatus is applied to network equipment.
  • the beam indicating device 120 includes a sending module 61 .
  • a sending module 61 configured to send the first indication information to the terminal device by using the first sending beam
  • the first indication information is used to indicate the second receive beam of the terminal device, the first transmit beam corresponds to the first receive beam of the terminal device; the first receive beam corresponds to the first transmit and receive beam A point TRP or a second TRP, the second receiving beam corresponds to the second TRP.
  • the first receiving beam is a beam of the first TRP
  • the second receiving beam is an initial beam of the second TRP
  • the first indication information is a control element MAC CE of the first medium access control layer; wherein, the first MAC CE is used to indicate the first control resource associated with the second TRP
  • the identifier of the set, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, and the initial beam of the second TRP corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI; wherein, the second MAC CE is used to indicate multiple activated TCI state indexes; the The first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is a TCI state in a plurality of activated TCI state indexes included in the second MAC CE index.
  • the first receive beam corresponds to the beam of the first TRP
  • the second receive beam corresponds to the update beam of the second TRP
  • the first receive beam corresponds to the second TRP
  • the second receive beam corresponds to the update beam of the second TRP.
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the multiple TCI state indexes carried by the fourth MAC CE include one TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • the first receive beam is an initial receive beam corresponding to the control resource set CORESET#0 associated with the first TRP.
  • the above-mentioned sending module 61 is also used for
  • the known receive beam corresponds to the first TRP.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to a third control resource set associated with the first TRP Correspondingly, it is indicated by the third indication information sent by CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • the network device sends the first indication information to the terminal device by using the first sending beam, so as to determine the second receiving beam used by the terminal device when the terminal device communicates with the network device subsequently.
  • the first receiving beam corresponds to the first sending and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP. Therefore, when the subsequent network device uses the second TRP to send the indication signaling, the terminal device uses the second receiving beam for receiving. , which improves the success rate of signaling reception.
  • FIG. 7 is a block diagram of a terminal device provided by an embodiment of the present disclosure.
  • the terminal device may be a mobile phone, a computer, a digital broadcast user equipment, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • the terminal includes: a transceiver 800 , a processor 810 , and a memory 820 .
  • the memory 820 is used to store computer programs; the transceiver 800 is used to send and receive data under the control of the processor 810; the processor 810 is used to read the computer program in the memory 820 and perform the following operations:
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the transceiver 800 is used for receiving and transmitting data under the control of the processor 810 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 810 and various circuits of memory represented by memory 820 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 800 may be a number of elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like Transmission medium.
  • the user interface may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 in performing operations.
  • the processor 810 may be a Central Processing Unit (CPU for short), an Application Specific Integrated Circuit (ASIC for short), a Field-Programmable Gate Array (FPGA for short) Or a complex programmable logic device (Complex Programmable Logic Device, CPLD for short), the processor 810 may also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor 810 is configured to execute any one of the methods in FIG. 1 to FIG. 2 provided by the embodiments of the present disclosure according to the obtained executable instructions by invoking the computer program stored in the memory.
  • the processor 810 and the memory 820 may also be arranged physically separately.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to an initial beam of the second TRP
  • the first indication information is a first medium access control layer control element MAC CE
  • the first MAC CE is used to indicate the identifier of the first control resource set associated with the second TRP, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, the second TRP The initial beam of corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI;
  • the second MAC CE is used to indicate multiple activated TCI state indexes
  • the first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is one TCI in a plurality of activated TCI state indexes included in the second MAC CE state index.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to the update beam of the second TRP
  • the first receiving beam corresponds to the second TRP
  • the second receiving beam corresponds to an update beam of the second TRP
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the plurality of activated TCI state indexes carried by the fourth MAC CE include a TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • it also includes:
  • the first receive beam is an initial receive beam of the control resource set CORESET#0 associated with the first TRP.
  • it also includes:
  • second indication information is received, where the second indication information is used to determine the first receive beam.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to a third control resource set associated with the first TRP Correspondingly, it is the third indication information indication sent by using the CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes: one of the identifiers corresponding to a TRP or Multiple TCI state indexes; or, one or more TCI state indexes corresponding to a control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes: multiple identifiers corresponding to multiple TRPs. TCI state indexes; wherein, each TCI state index has a corresponding identifier of the TRP; or, a plurality of TCI state indexes corresponding to a plurality of control resource set pool indexes; wherein, each TCI state index has a corresponding control resource Set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE, and the fourth MAC CE includes: an indication corresponding to at least one TCI state index field, and the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • FIG. 8 it is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the network device includes: a transceiver 900 , a processor 910 , and a memory 920 .
  • the memory 920 is used to store computer programs; the transceiver 900 is used to send and receive data under the control of the processor 910; the processor 910 is used to read the computer program in the memory 920 and perform the following operations:
  • the first indication information is used to indicate the second receive beam of the terminal device, and the first transmit beam corresponds to the first receive beam of the terminal device;
  • the first receiving beam corresponds to the first transmitting and receiving point TRP or the second TRP
  • the second receiving beam corresponds to the second TRP
  • the transceiver 900 is used for receiving and transmitting data under the control of the processor 910 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 910 and various circuits of memory represented by memory 920 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 900 may be multiple elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 910 in performing operations.
  • the processor 910 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor 910 may also adopt a multi-core architecture.
  • the first receiving beam corresponds to the first TRP
  • the second receiving beam corresponds to an initial beam of the second TRP
  • the first indication information is a control element MAC CE of the first medium access control layer; wherein, the first MAC CE is used to indicate the first control resource associated with the second TRP
  • the identifier of the set, and a transmission configuration corresponding to the initial beam of the second TRP indicates the TCI state index, and the initial beam of the second TRP corresponds to the first control resource set.
  • the first indication information is the second MAC CE and the first downlink control information DCI; wherein, the second MAC CE is used to indicate multiple activated TCI state indexes; the The first DCI is used to indicate a TCI state index corresponding to the initial beam of the second TRP, and the one TCI state index is a TCI state in a plurality of activated TCI state indexes included in the second MAC CE index.
  • the first receive beam corresponds to the first TRP
  • the second receive beam corresponds to an update beam of the second TRP
  • the first receive beam corresponds to the second TRP TRP
  • the second receive beam corresponds to the update beam of the second TRP
  • the first indication information is the third MAC CE
  • the third MAC CE is used to indicate the identifier of the second control resource set associated with the second TRP, and a TCI state index corresponding to the update beam of the second TRP, the update beam of the second TRP corresponding to the second control resource set.
  • the first indication information is the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate multiple activated TCI state indexes
  • the second DCI is used to indicate a TCI state index corresponding to the update beam of the second TRP, and the one TCI state index is a TCI in a plurality of activated TCI state indexes included in the fourth MAC CE state index.
  • the multiple TCI state indexes carried by the fourth MAC CE include one TCI state index corresponding to the initial beam of the second TRP.
  • the first DCI and the second DCI include a target indication field, and the target indication field is used to indicate the identifier of the TRP corresponding to the TCI state index and/or the corresponding control resource set Pool index.
  • each TCI state index corresponds to a preset identifier of a TRP and/or corresponds to a control resource set pool index.
  • the identifier of the TRP corresponding to the TCI state index in the first DCI and the second DCI and/or the corresponding control resource set pool index is the MAC CE that activates the TCI state index. Indicates TRP identification and/or control resource set pool index.
  • the first receive beam is an initial receive beam corresponding to the control resource set CORESET#0 associated with the first TRP.
  • it also includes:
  • the second indication information is used to indicate the first receiving beam of the terminal device, and the known receiving beam corresponds to the first TRP.
  • the known receive beam corresponds to CORESET#0 associated with the first TRP; or, the known receive beam corresponds to a third control resource set associated with the first TRP Correspondingly, it is indicated by the third indication information sent by CORESET#0 associated with the first TRP.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • one or more TCI state indexes corresponding to a control resource set pool index are provided.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • each TCI state index has a corresponding control resource set pool index.
  • At least one MAC CE among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE includes:
  • An indication field corresponding to at least one TCI state index where the indication field is used to indicate whether the at least one TCI state index exists in the at least one MAC CE.
  • the above-mentioned network device provided in the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiments in FIG. 3 to FIG. 4, and can achieve the same technical effect, and this embodiment is not described here The same parts and beneficial effects as in the method embodiment will be described in detail.
  • the present disclosure also proposes a communication system.
  • the communication system provided by the embodiments of the present disclosure includes a terminal device and a network device.
  • the terminal device can implement the beam indication method described in any one of the foregoing 1-2
  • the network device can implement the beam indication method described in any one of the foregoing 3-4.
  • the present disclosure also proposes a computer storage medium.
  • the computer storage medium provided by the embodiments of the present disclosure stores an executable program; after the executable program is executed by a processor, the foregoing method can be implemented, for example, as shown in at least one of FIG. 1 to FIG. 4 .
  • the present disclosure also proposes a computer program product.
  • the foregoing method can be implemented, for example, as shown in at least one of FIG. 1 to FIG. 4 .

Abstract

本公开提出一种波束指示方法、装置及通信设备,属于无线通信技术领域。其中,该方法包括:终端设备采用第一接收波束接收第一指示信息,以确定后续终端设备和网络设备通信时采用的第二接收波束。其中,第一接收波束对应第一发送接收点TRP或者第二TRP,并根据第一指示信息,确定对应第二TRP的第二接收波束,从而后续在接收网络设备采用第二TRP发送指示信令时,采用第二接收波束进行接收,实现了在通信过程中,可以进行接收波束的指示,提高了信令的接收成功率。

Description

波束指示方法、装置及通信设备 技术领域
本公开涉及无线通信技术领域,尤其涉及一种波束指示方法、装置及通信设备。
背景技术
在新的无线技术(New Radio,NR)中,特别是通信频段在频率范围(Frequency Range,FR)2时,由于高频信道衰减较快,为了保证覆盖范围,需要使用基于beam(波束)的发送和接收。
在Rel-16中,物理下行控制信道(physical downlink control channel,PDCCH)、物理下行共享信道(physical downlink shared channel,PDSCH)、物理上行共享信道(physicaluplink shared channel,PUSCH)、物理上行控制信道(physicaluplink control channel,PUCCH)以及各个上下行参考信号等的专用波束都是独立指示的,使得信令开销较大,因此,为了减少信令开销,可以使用通用波束(common beam),即指示一个common beam用于多个信道和/或参考信号。例如,至少两信道或至少两参考信号共享的通用波束。
然而,通信过程中,如何指示发送或接收波束,是需要解决的问题。
发明内容
本公开提出的波束指示方法、装置及通信设备,用于解决针对通过MAC或者DCI发送的指示信息,无法指示该指示信息的接收波束的技术问题。
本公开一方面实施例提出的一种波束指示方法,应用于终端设备,包括:
使用第一接收波束接收网络设备发送的第一指示信息,所述第一指示信息,用于指示第二接收波束;
其中,所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
可选的,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
可选的,所述第一指示信息是第一媒体接入控制层控制元素MAC CE;
其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
可选的,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
可选的,所述第一接收波束对应第一TRP,所述第二接收波束对应第二TRP的更新波束;或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应第二TRP的更新波束。
可选的,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
可选的,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
可选的,所述第四MAC CE携带的多个激活的TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
可选的,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索 引对应的TRP的标识和/或对应的控制资源集池索引。
可选的,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
可选的,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
可选的,所述方法,还包括:
确定所述第一接收波束;
其中,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0的初始接收波束。
可选的,所述方法,还包括:
采用对应所述第一TRP的已知接收波束,接收第二指示信息,所述第二指示信息用于确定所述第一接收波束。
可选的,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;
或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,是使用所述第一TRP关联的CORESET#0发送的第三指示信息指示。
可选的,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
可选的,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
可选的,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开另一方面实施例提出的另一种波束指示方法,应用于网络设备,包括:
使用第一发送波束向终端设备发送第一指示信息;
其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端设备的第一接收波束;
所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
可选地,所述第一接收波束是所述第一TRP的波束,所述第二接收波束是所述第二TRP的初始波束。
可选地,所述第一指示信息是第一媒体接入控制层的控制元素MAC CE;
其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
可选地,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
可选地,所述第一接收波束对应所述第一TRP的波束,所述第二接收波束对应第二TRP的更新波束;或者,所述第一接收波束对应所述第二TRP的波束,所述第二接收波束对应第二TRP的更新波束。
可选地,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
可选地,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
可选地,所述第四MAC CE携带的多个TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
可选地,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
可选地,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
可选地,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
可选地,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。
可选地,所述方法,还包括:
使用所述终端设备的已知接收波束对应的发送波束,向所述终端设备发送第二指示信息;
其中,所述第二指示信息,用于指示所述终端设备的所述第一接收波束,所述已知接收波束对应所述第一TRP。
可选地,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,通过所述第一TRP关联的CORESET#0发送的第三指示信息指示。
可选地,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
可选地,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
可选地,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开一方面实施例提出的一种波束指示装置,应用于终端设备,包括:
接收模块,用于使用第一接收波束接收网络设备发送的第一指示信息,所述第一指示信息,用于指示第二接收波束;
其中,所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层控制元素MAC CE;
其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的 初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应第一TRP,所述第二接收波束对应第二TRP的更新波束;
或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个激活的TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,所述装置,还包括:
确定模块,用于确定所述第一接收波束;
其中,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0的初始接收波束。
作为一种可能的实现方式,接收模块,还用于
采用对应所述第一TRP的已知接收波束,接收第二指示信息,所述第二指示信息用于确定所述第一接收波束。
作为一种可能的实现方式,所述已知接收波束是所述第一TRP关联的CORESET#0的接收波束;或者,所述已知接收波束,根据所述第一TRP关联的CORESET#0发送的第三指示信息确定,是所述第一TRP关联的第三控制资源集对应的接收波束。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开另一方面实施例提出的另一种波束指示装置,应用于网络设备,包括:
发送模块,用于使用第一发送波束向终端设备发送第一指示信息;
其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端设备的第一接收波束;
所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层的控制元素MAC CE;其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;其中,所述第二MAC CE用于指示多个激活的TCI状态索引;所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的更新波束;或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应所述第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,
所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。
作为一种可能的实现方式,发送模块,还用于
使用所述终端设备的已知接收波束对应的发送波束,向所述终端设备发送第二指示信息;
其中,所述第二指示信息,用于指示所述终端设备的所述第一接收波束,所述已知接收波束对应所述第一TRP。
作为一种可能的实现方式,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,通过所述第一TRP关联的CORESET#0发送的第三指示信息指示。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四 MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开另一方面实施例提出的一种终端设备,其中,包括:收发机;存储器和处理器;
所述存储器,用于存储计算机程序;所述收发机,用于在所述处理器的控制下收发数据;所述处理器,用于读取所述存储器中的计算机程序以执行以下操作:
使用第一接收波束接收网络设备发送的第一指示信息,所述第一指示信息,用于指示第二接收波束;
其中,所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层控制元素MAC CE;
其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应第一TRP,所述第二接收波束对应第二TRP的更新波束;
或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个激活的TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,还包括:
确定所述第一接收波束;
其中,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0的初始接收波束。
作为一种可能的实现方式,还包括:
采用对应所述第一TRP的已知接收波束,接收第二指示信息,所述第二指示信息用于确定所述第一接收波束。
作为一种可能的实现方式,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,是使用所述第一TRP关联的CORESET#0发送的第三指示信息指示。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:对应一个TRP的标识的一个或多个TCI状态索引;或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开另一方面实施例提出的一种网络设备,包括:收发机;存储器和处理器;
所述存储器,用于存储计算机程序;所述收发机,用于在所述处理器的控制下收发数据;所述处理器,用于读取所述存储器中的计算机程序以执行以下操作:
使用第一发送波束向终端设备发送第一指示信息;
其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端设备的第一接收波束;
所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层的控制元素MAC CE;其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;其中,所述第二MAC CE用于指示多个激活的TCI状态索引;所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的更新波束;或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应所述第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。
作为一种可能的实现方式,还包括:
使用所述终端设备的已知接收波束对应的发送波束,向所述终端设备发送第二指示信息;
其中,所述第二指示信息,用于指示所述终端设备的所述第一接收波束,所述已知接收波束对应所述第一TRP。
作为一种可能的实现方式,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,通过所述第一TRP关联的CORESET#0发送的第三指示信息指示。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开另一方面实施例提出的一种通信系统,包含终端设备和网络设备,终端设备能够实现前述一方面所述的波束指示方法,网络设备能够实现前述另一方面所述的波束指示方法。
本公开另一方面实施例提出的一种计算机存储介质,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现前述一方面所述的波束指示方法。
本公开另一方面实施例提出的一种计算机存储介质,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现前述另一方面所述的波束指示方法。
本公开另一方面实施例提出的一种计算机程序产品,包括计算机程序,所述计算机程序被处理器执行时,能够实现前述一方面或另一方面所述的波束指示方法。
本公开实施例提供的技术方案可以包含以下的技术效果:
终端设备采用第一接收波束接收第一指示信息,以确定后续终端设备和网络设备通信时采用的第二接收波束。其中,第一接收波束对应第一发送接收点TRP或者第二TRP,并根据第一指示信息,确定对应 第二TRP的第二接收波束,从而后续在接收网络设备采用第二TRP发送指示波束的信令时,采用第二接收波束进行接收,实现了在通信过程中,指示信息的接收波束的指示,提高了信令的接收成功率。
本公开附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解,其中:
图1为本公开实施例提供的一种波束指示方法的流程示意图;
图2为本公开实施例提供的另一种波束指示方法的流程示意图
图3为本公开实施例提供的另一种波束指示方法的流程示意图
图4为本公开实施例提供的另一种波束指示方法的流程示意图;
图5为本公开实施例提供的一种波束指示装置的结构示意图;
图6为本公开实施例提供的另一种波束指示装置的结构示意图;
图7为本公开实施例所提供的一种终端设备的框图;
图8为本公开实施例所提供的一种网络设备的结构示意图。
具体实施方式
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公开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、本公开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”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”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
下面详细描述本公开的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的要素。下面通过参考附图描述的实施例是示例性的,旨在用于解释本公开,而不能理解为对本公开的限制。
下面参考附图对本公开提供的波束指示方法、装置及通信设备进行详细描述。
术语解释:
初始波束,是终端设备与发送接收点((Transmission and Reception Point,TRP)进行上下行传输所首次采用的波束;
已知波束,是终端设备与TRP进行上下行传输已经采用的波束;
更新波束,是终端设备与TRP进行上下行传输将要采用的波束;
TRP,对应终端设备的服务小区或邻小区;
控制资源集合(Control Resource Set,CORESET),为配置资源,用于下行控制信道PDCCH发送下行控制信息(Downlink Control Information,DCI)信令的资源。
控制资源集池索引(CORESET Pool Index),一个CORESET Pool Index值与一个或多个CORESET对应,每个CORESET Pool Index对应一个TRP。即对应不同CORESET Pool Index值的CORESET是用于不 同TRP的PDCCH信道。
图1为本公开实施例所提供的一种波束指示方法的流程示意图,应用于终端设备。
如图1所示,包括以下步骤:
步骤101,使用第一接收波束接收网络设备发送的第一指示信息,第一指示信息,用于指示第二接收波束,其中,第一接收波束对应第一发送接收点TRP或者第二TRP,第二接收波束对应第二TRP。
本公开实施例的波束指示方法可以应用在任意的终端设备中。终端设备可以散布于整个移动通信系统中,并且每个终端设备可以是静止的或者移动的。终端设备还可以被本领域技术人员称为移动站、用户站、移动单元、用户单元、无线单元、远程单元、移动设备、终端设备、无线设备、无线通信设备、远程设备、移动用户站、接入用户设备、移动用户设备、无线用户设备、远程用户设备、手持设备、用户代理、移动客户端、客户端、车载设备、可穿戴设备或者一些其它适当的术语。终端设备可以是蜂窝电话、个人数字助理(Personal Digital Assistant,PDA)、无线调制解调器、无线通信设备、手持设备、平板电脑、膝上型计算机、无绳电话、无线本地环路(Wireless Local Loop,WLL)站等,能够与移动通信系统中的网络设备进行通信。
其中,网络设备部署在无线接入网中用为终端设备提供无线接入功能。网络设备可以是基站(Base Station,BS)。网络设备可以经由一个或多个天线与终端设备进行无线通信。网络设备可以为其所在地理区域提供通信覆盖。所述基站可以包括宏基站,微基站,中继站,接入点等不同类型。在一些实施例中,基站可以被本领域技术人员称为基站收发机、无线基站、接入点、无线收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、节点B(NodeB)、演进的节点B(evolved NodeB,eNB或eNodeB)或者其它一些适当的术语。示例性地,在5G系统中,基站被称为gNB。为方便描述,本公开实施例中,上述为终端设备提供无线通信功能的装置统称为网络设备。
本实施例中,终端设备采用第一接收波束接收第一指示信息,以确定后续终端设备和网络设备通信时采用的第二接收波束。其中,第一接收波束对应第一发送接收点TRP或者第二TRP,也就是说使用第一接收波束接收的可以是第一TRP发送的第一指示信息,或者是接收的可以是第二TRP发送的第一指示信息。作为一种实现方式,若第一指示信息是第一TRP发送的,则第一TRP通过第一指示信息告知终端设备后续的第二接收波束,第二接收波束对应第二TRP,终端设备使用第二接收波束接收第二TRP发送的通信内容,包括共享信道上的数据或控制信道上的信令或参考信号。作为另一种实现方式,若第一指示信息是第二TRP发送的,,也就是说第一接收波束对应第二TRP,第二接收波束仍然对应第二TRP,则第二TRP通过第一指示信息告知终端设备后续的第二发送波束仍是由第二TRP发送的,对应第二TRP对终端设备接收自身发送的通信内容时使用的接收波束进行更新。根据第一指示信息,确定对应第二TRP的第二接收波束,从而后续在接收网络设备采用第二TRP发送的指示波束的信令时,采用第二接收波束进行接收,完成了接收波束的指示,实现了在通信过程中,当TRP发生切换,或者是TRP自身的波束需要更新时,实现了指示信息的接收波束的指示,提高了信令的接收成功率。
基于上述实施例,终端设备使用第一接收波束接收网络设备发送的第一指示信息,而在不同的场景下,第一指示信息指示的第二接收波束对应的第二TRP的波束是不同的,可以指示的是初始波束,也可以指示的是更新波束,下面针对三种不同的场景分别进行说明。
在一种场景下,第一接收波束对应第一TRP,第二接收波束对应第二TRP的初始波束。本实施例中,终端设备使用第一接收波束接收网络设备发送的第一指示信息,其中,第一指示信息指示的是对应第二TRP的初始波束。比如第一TRP对应服务小区的TRP,第二TRP可以对应服务小区或邻小区的TRP。由于在这之前,终端设备还没有与第二TRP进行过通信传输,所以不知道与第二TRP进行通信传输的初始波束,需要第一TRP发送指示信息来指示。
在该场景下,用于指示第一指示信息的信令也是不同的,下面通过两种实现方式说明。
在本公开的一种实现方式中,第一指示信息是第一媒体接入控制(Medium Access Control,MAC)层的控制元素(Control Element,CE,或称控制单元)MAC CE。
其中,第一MAC CE用于指示第二TRP关联的第一控制资源集的标识,和第二TRP的初始波束对应 的一个传输配置指示(Transmission Configuration Indicator,TCI)状态索引,第二TRP的初始波束与第一控制资源集相对应。其中,第一控制资源集的标识,例如为CORESET#1,或CORESET#2,或CORESET#3,本实施例中不进行限定。
本实施例中,第一MAC CE激活了一个TCI状态索引,该TCI状态索引是和第二TRP的初始波束对应的,而第二TRP的初始波束与第一控制资源集相对应,也就是说第一控制资源集对应的也是该激活的一个TCI状态索引。MAC CE激活的一个TCI状态索引还可以用于与第一控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或物理上行控制信道(Physical Uplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,SRS),定位参考信号(Positioning Reference Signal,PRS),解调参考信号(Demodulation Reference Signal,DMRS)等。即MAC CE激活的一个TCI状态索引可以对应的是一个通用波束,即common beam。
在本公开的另一种实现方式中,第一指示信息是第二MAC CE和第一下行链路控制信息DCI,也就是说第一指示信息是根据第二MAC CE和第一下行链路控制信息DCI共同确定的。
其中,第二MAC CE用于指示多个激活的TCI状态索引,第一DCI用于指示第二TRP的初始波束对应的一个TCI状态索引,一个TCI状态索引是第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。也就是说在第二MAC CE指示激活了多个TCI状态索引时,则利用第一DCI从激活的多个TCI状态索引中确定一个TCI状态索引,将确定一个TCI状态索引作为第二TRP的初始波束对应的TCI状态索引。DCI指示的一个TCI状态索引还可以用于与第一控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或物理上行控制信道(Physical Uplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,,SRS),定位参考信号(Positioning Reference Signal,PRS),解调参考信号(Demodulation Reference Signal,DMRS)等。即DCI指示的一个TCI状态索引可以对应的是一个通用波束,即common beam。
在第二种场景下,对应终端设备使用的第一接收波束对应第一TRP,第二接收波束对应第二TRP的更新波束,即第二TRP的更新波束也由第一TRP发送指示信息来指示。第一种场景和第二种场景综合考虑,即第二TRP的初始波束和第二TRP的更新波束都是由第一TRP发送指示信息来指示。比如第一TRP对应服务小区的TRP,第二TRP可以对应服务小区或邻小区的TRP。
在第三种场景下,对应终端设备使用的第一接收波束对应第二TRP,后续的接收波束仍然对应第二TRP,即对应第二TRP对自身对应的接收波束进行更新指示,以使得终端设备侧对应的接收波束进行更新。从而,第一接收波束对应第二TRP,第二接收波束对应第二TRP的更新波束。第一种场景和第三种场景综合考虑,即第二TRP的初始波束是由第一TRP发送指示信息来指示,第二TRP的更新波束是由第二TRP发送指示信息来指示。比如第一TRP对应服务小区的TRP,第二TRP可以对应服务小区或邻小区的TRP。
在第二种场景和第三种场景下,用于指示第一指示信息的信令也是不同的,下面通过两种实现方式说明。
作为一种实现方式,第一指示信息是第三MAC CE,其中,第三MAC CE用于指示第二TRP关联的第二控制资源集的标识,和第二TRP的更新波束对应的一个TCI状态索引,第二TRP的更新波束与第二控制资源集相对应。其中,第二控制资源集的标识,例如为CORESET#1或CORESET#2,或CORESET#3,本实施例中不进行限定。MAC CE激活的一个TCI状态索引还可以用于与第二控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或物理上行控制信道(Physical Uplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,SRS),定位参考信号(Positioning Reference Signal,PRS), 解调参考信号(Demodulation Reference Signal,DMRS)等。即MAC CE激活的一个TCI状态索引可以对应的是一个通用波束,即common beam。
需要理解的是,TCI状态索引用于指示波束,也就是说根据TCI状态索引指示的参考信号资源可以确定对应的波束。
需要说明的是,第二控制资源集的标识可以和第一控制资源集的标识相同,也可以和第一控制资源集的标识不同。例如,第一控制资源集的标识为CORESET#0,第二控制资源集的标识为CORESET#1,或者,第一控制资源集的标识和第二控制资源集的标识均为CORESET#0或为CORESET#1。本实施例中不进行限定。
作为另一种实现方式,第一指示信息是第四MAC CE和第二DCI,其中,第四MAC CE用于指示多个激活的TCI状态索引,第二DCI用于指示第二TRP的更新波束对应的一个TCI状态索引,而一个TCI状态索引是第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。DCI指示的一个TCI状态索引还可以用于与第二控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或物理上行控制信道(Physical Uplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,SRS),定位参考信号(Positioning Reference Signal,PRS),解调参考信号(Demodulation Reference Signal,DMRS)等。即DCI指示的一个TCI状态索引可以对应的是一个通用波束,即common beam。
在本公开实施例的一种实现方式中,第一MAC CE、第二MAC CE、第三MAC CE和第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引,或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
在本公开实施例的第二种实现方式中,第一MAC CE第二MAC CE、第三MAC CE和第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引,其中,每个TCI状态索引具有对应的TRP的标识;或者,对应多个控制资源集池索引的多个TCI状态索引,其中,每个TCI状态索引具有对应的控制资源集池索引。
在本公开实施例的第二种实现方式中,第一MAC CE、第二MAC CE、第三MAC CE和第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,指示域用于指示至少一个TCI状态索引是否存在于至少一个MAC CE中。例如,(第一指示域),(第二指示域),(第一TRP的激活TCI域),(第二TRP的激活TCI域),第一指示域对应的是第一TRP,比如指示域为0则说明该MAC CE中(第一TRP的激活TCI域)里没有TCI状态索引,即没有激活第一TRP对应的TCI状态。第二指示域对应的是第二TRP,比如指示域为1,则说明该MAC CE中(第二TRP的激活TCI域)里有TCI状态索引,即激活了第二TRP对应的TCI状态。
本公开实施例中,在MAC CE指示了多个激活的TCI状态索引时,在指示第二TRP的初始波束时,需要一个MAC CE指示多个TCI状态索引和一个DCI指示第二TRP的初始波束对应的一个TCI状态索引;进一步,还需要指示第二TRP的更新波束时,需要再一个MAC CE指示多个TCI状态索引,以及一个DCI指示第二TRP的更新波束对应的一个TCI状态索引,也就是说在指示了第二TRP的初始波束后,又指示后续的更新波束,需要两个MAC CE,为了节省信令的开销,对MAC CE进行合并。
作为一种实现方式,本实施例中的第四MAC CE携带的多个激活的TCI状态索引中,包括与第二TRP的初始波束对应的一个TCI状态索引,也就是说第四MAC CE携带的多个激活的TCI状态索引中至少包含一个初始波束对应的TCI状态索引和一个更新波束对应的TCI状态索引,从而,当需要指示第二TRP的初始波束时,仅需要发送DCI,从第四MAC CE携带的多个激活的TCI状态索引中指示第二TRP的初始波束对应的一个TCI状态索引;或者不需要DCI去指示第二TRP的初始波束,直接将第四MAC CE中多个激活的TCI状态索引中的指定TCI状态索引确认为第二TRP的初始波束。比如指定TCI状态索引为 对应TCI状态索引值最小的TCI状态索引;或第四MAC CE给出DCI的TCI指示域的码点(codepoint)与TCI状态组合之间的映射关系,TCI状态组合包含一个或2个TCI状态,而指定TCI状态索引为指定DCI codepoint对应的TCI状态组合中的一个TCI状态索引,比如指定DCI codepoint为codepoint取值最小的codepoint。并在后续需要指示第二TRP的更新波束时,再发送一个DCI指示第二TRP的更新波束对应的第四MAC CE中多个激活的TCI状态索引中的一个TCI状态索引。通过将指示初始波束和指示更新波束两种情况下的MAC CE通过一个MAC CE指示,实现了MAC CE的节约,降低了系统的开支。
本公开实施例中,在一些场景下,第一接收波束对应第一TRP,第二接收波束对应第二TRP的初始波束,在另一个场景下,第一接收波束对应第一TRP,第二接收波束对应第二TRP的更新波束,在这两种场景下,MAC CE用于指示多个激活的TCI状态索引时,还需要DCI从多个激活的TCI状态索引中指示一个TCI状态索引,并指示该一个TCI状态索引是对应第一TRP还是对应第二TRP,以提高指示的效率和准确度。下面,本实施例中通过以下3种实现方式进行具体说明:
作为第一种实现方式,第一DCI和第二DCI中包含目标指示域,其中,目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。也就是说目标指示域指示了TCI状态索引对应哪个TRP和/或对应哪个控制资源集池。其中,每一个控制资源集池索引和TRP具有对应关系,确定了控制资源集池索引,则确定了对应的是哪个TRP,例如,对应的是第一TRP或第二TRP。
作为第二种实现方式,第一DCI和第二DCI中,每个TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。也就是说,不同的TCI状态索引具有对应的一个TRP的标识,即TRP标识不同,对应的TCI状态索引则不同,例如,第一TRP对应的TCI状态索引为1和2,则第二TRP对应的TCI状态索引为3和4。从而,根据TCI状态索引对应预设的一个TRP的标识,即可确定对应的TRP是哪个TRP,例如为第一TRP或第二TRP。或者,不同的TCI状态索引具有对应的一个控制资源集池索引,根据TCI状态索引对应预设的一个控制资源集池索引,即可确定对应的TRP是哪个TRP,例如为第一TRP或第二TRP。其中,每一个控制资源集池索引和TRP具有对应关系,确定了控制资源集池索引,则确定了对应的是哪个TRP,例如,对应的是第一TRP或第二TRP。
作为第三种实现方式,第一DCI和第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
以第一DCI为例进行说明,其中,在本公开的一种实现方式中,第一DCI中TCI状态索引对应的TRP的标识,是激活TCI状态索引的MAC CE所指示的TRP标识,也就是说MAC CE指示了TRP标识。其中,作为一种实现方式,MAC CE格式中,激活不同的TRP的TCI状态索引的比特位置设置不同,根据比特的位置,即可确定激活的是属于哪个TRP的TCI状态索引。作为第二种实现方式,第一DCI中对应的控制资源集池索引,是激活TCI状态索引的MAC CE所指示控制资源集池索引。作为第三种实现方式,MAC CE格式中包含了CORESET ID,而每个CORESET ID对应唯一的控制资源集池索引,所以根据CORESET ID可以确定该TCI状态索引对应的TRP。作为第四种实现方式,还可以设置不同的比特值,用于指示是否激活各个TRP的TCI状态索引,以及激活的哪个TRP的TCI状态索引。
图2为本公开实施例提供的另一种波束指示方法的流程示意图,该方法应用于终端设备,如图2所示,该方法包含以下步骤:
步骤201,确定第一接收波束。
作为本公开实施例的一种实现方式,第一接收波束是第一TRP关联的控制资源集合CORESET#0的初始接收波束。其中,初始接收波束,是终端设备与第一TRP进行上下行传输所首次采用的波束。第一TRP关联的CORESET#0的初始接收波束可以是终端设备根据检测网络设备发送的同步信号块(Synchronization Signal and PBCH Block,SSB)的参考信号接收功率(Reference Signal Receiving Power,RSRP)的值确定的,若终端设备检测到RSRP的值超过门限值,则使用该SSB对应的PRACH资源发起随机接入,也就是说将该SSB对应的接收波束作为CORESET#0的初始接收波束,从而确定了第一接收波束。
作为本公开实施例的另一种实现方式,采用对应第一TRP的已知接收波束,接收第二指示信息,第二指示信息用于指示第一接收波束。也就是说,采用对应第一TRP的已知接收波束接收第二指示信息,第二 指示信息指示了第一接收波束。
其中,已知接收波束,是终端设备接收第一TRP发送的下行传输时已经采用过的波束。作为一种实现方式,已知接收波束,与第一TRP关联的CORESET#0对应,也就是说已知波束,是通过终端设备检测网络设备发送的同步信号块SSB的RSRP的值,在RSRP的值大于门限值时确定的与CORESET#0对应的波束。作为另一种实现方式,已知接收波束,与第一TRP关联的第三控制资源集对应,是使用第一TRP关联的CORESET#0发送的第三指示信息指示。
步骤202,使用第一接收波束接收网络设备发送的第一指示信息,其中,第一指示信息,用于指示第二接收波束,第一接收波束对应第一发送接收点TRP或者第二TRP,第二接收波束对应第二TRP。
其中,步骤202,可参照前述任意实施例中的解释说明,原理相同,此处不再赘述。
本实施例的波束指示方法中,终端设备采用第一接收波束接收第一指示信息,以确定后续终端设备和网络设备通信时采用的第二接收波束。其中,第一接收波束对应第一发送接收点TRP或者第二TRP,也就是说第一接收波束可以是用于接收第一TRP发送的第一指示信息时使用的接收波束,或者是用于接收第二TRP发送的第一指示信息时使用的接收波束。并根据第一指示信息,确定对应第二TRP的第二接收波束,从而后续在接收网络设备采用第二TRP发送指示信令时,采用第二接收波束进行接收,完成了接收波束的指示,提高了信令的接收成功率。
图3为本公开实施例提供的另一种波束指示方法的流程示意图,应用于网络设备。
如图3所示,该方法包含以下步骤:
步骤301,使用第一发送波束向终端设备发送第一指示信息,其中,第一指示信息,用于指示终端设备的第二接收波束,第一发送波束对应终端设备的第一接收波束,第一接收波束对应第一发送接收点TRP或者第二TRP,第二接收波束对应第二TRP。
本公开实施例的波束指示方法可以应用在任意的网络设备中。其中,网络设备部署在无线接入网中用为终端设备提供无线接入功能。网络设备可以是基站(Base Station,BS)。网络设备可以经由一个或多个天线与终端设备进行无线通信。网络设备可以为其所在地理区域提供通信覆盖。所述基站可以包括宏基站,微基站,中继站,接入点等不同类型。在一些实施例中,基站可以被本领域技术人员称为基站收发机、无线基站、接入点、无线收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、节点B(NodeB)、演进的节点B(evolved NodeB,eNB或eNodeB)或者其它一些适当的术语。示例性地,在5G系统中,基站被称为gNB。为方便描述,本公开实施例中,上述为终端设备提供无线通信功能的装置统称为网络设备。
其中,终端设备可以散布于整个移动通信系统中,并且每个终端设备可以是静止的或者移动的。终端设备还可以被本领域技术人员称为移动站、用户站、移动单元、用户单元、无线单元、远程单元、移动设备、终端设备、无线设备、无线通信设备、远程设备、移动用户站、接入用户设备、移动用户设备、无线用户设备、远程用户设备、手持设备、用户代理、移动客户端、客户端、车载设备、可穿戴设备或者一些其它适当的术语。终端设备可以是蜂窝电话、个人数字助理(Personal Digital Assistant,PDA)、无线调制解调器、无线通信设备、手持设备、平板电脑、膝上型计算机、无绳电话、无线本地环路(Wireless Local Loop,WLL)站等,能够与移动通信系统中的网络设备进行通信。
本实施例中,网络设备采用第一发送波束向终端设备发送第一指示信息,以使得终端设备根据第一指示信息确定第二接收波束,其中,第二接收波束是终端设备在接收到第一指示信息后,和网络设备再进行通信时所采用的接收波束。
本实施例中,第一发送波束对应终端设备的第一接收波束,其中,第一接收波束对应第一发送接收点TRP或者第二TRP,也就是说使用第一接收波束接收的可以是第一TRP发送的第一指示信息,或者是接收的是第二TRP发送的第一指示信息。作为一种实现方式,若第一指示信息是第一TRP发送的,则第一TRP通过第一指示信息告知终端设备后续的第二接收波束,第二接收波束对应第二TRP。作为另一种实现方式,若第一指示信息是第二TRP发送的,也就是说第一接收波束对应第二TRP,第二接收波束仍然对应第二TRP,则对应终端设备对接收第二TRP发送的通信内容时使用的接收波束进行更新。根据第一指 示信息,确定终端设备的第二接收波束,从而后续在网络设备采用第二TRP发送指示波束的信令时,终端设备采用第二接收波束进行接收,完成了对终端设备接收波束的指示,实现了在通信过程中,当TRP发生切换,或者是TRP自身的发送波束需要更新时,可以进行波束的切换,提高了信令的接收成功率。
基于上述实施例,网络设备使用第一发送波束向终端设备发送第一指示信息,而在不同的场景下,第一接收波束对应第一发送接收点TRP或者第二TRP,而第一指示信息指示的第二发送波束对应的第二TRP的波束是不同的,可以指示的是初始波束,也可以指示的是更新波束,下面针对三种不同的场景分别进行说明。
在一种场景下,第一接收波束对应第一TRP的波束,第二接收波束对应第二TRP的初始波束。本实施例中,网络设备使用第一TRP的第一发送波束向终端设备发送第一指示信息,其中,第一指示信息指示的是对应第二TRP的初始波束。比如第一TRP对应服务小区的TRP,第二TRP可以对应服务小区或邻小区的TRP。由于在这之前,终端设备还没有与第二TRP进行过通信传输,所以不知道与第二TRP进行通信传输的初始波束,需要第一TRP发送第一指示信息来指示。
在该场景下,用于指示第一指示信息的信令也是不同的,下面通过两种实现方式说明。
在本公开的一种实现方式中,第一指示信息是第一媒体接入控制(Medium Access Control,MAC)层的控制元素(Control Element,CE)MAC CE,或者是第一媒体接入控制层的控制单元MAC CE。
其中,第一MAC CE用于指示第二TRP关联的第一控制资源集的标识,和第二TRP的初始波束对应的一个传输配置指示TCI状态索引,第二TRP的初始波束与第一控制资源集相对应。其中,第一控制资源集的标识,例如为CORESET#1或CORESET#2,或CORESET#3,本实施例中不进行限定。
本实施例中,第一MAC CE激活了一个TCI状态索引,该TCI状态索引是和第二TRP的初始波束对应的,而第二TRP的初始波束与第一控制资源集相对应,也就是说第一控制资源集对应的也是该激活的一个TCI状态索引。MAC CE激活的一个TCI状态索引还可以用于与第一控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink SharedChannel,PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或物理上行控制信道(Physical Uplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,SRS),定位参考信号(Positioning Reference Signal,PRS),解调参考信号(Demodulation Reference Signal,DMRS)等。即MAC CE激活的一个TCI状态索引可以对应的是一个通用波束,即common beam。
在本公开的另一种实现方式中,第一指示信息是第二MAC CE和第一下行链路控制信息DCI,也就是说第一指示信息是根据第二MAC CE和第一下行链路控制信息DCI共同确定的。
其中,第二MAC CE用于指示多个激活的TCI状态索引,第一DCI用于指示第二TRP的初始波束对应的一个TCI状态索引,一个TCI状态索引是第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。也就是说在第二MAC CE指示激活了多个TCI状态索引时,则利用第一DCI从激活的多个TCI状态索引中确定一个TCI状态索引,将确定一个TCI状态索引作为第二TRP的初始波束对应的TCI状态索引。DCI指示的一个TCI状态索引还可以用于与第一控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或物理上行共享信道(PhysicalUplink Shared Channel,PUSCH)或物理上行控制信道(Physical Uplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,SRS),定位参考信号(Positioning Reference Signal,PRS),解调参考信号(Demodulation Reference Signal,DMRS)等。即DCI指示的一个TCI状态索引可以对应的是一个通用波束,即common beam。
在第二种场景下,第一接收波束对应第一TRP的波束,第二接收波束对应第二TRP的更新波束,即第二TRP的更新波束也由第一TRP发送指示信息来指示。第一种场景和第二种场景综合考虑,即第二TRP的初始波束和第二TRP的更新波束都是由第一TRP发送第一指示信息来指示。比如第一TRP对应服务小区的TRP,第二TRP可以对应服务小区或邻小区的TRP。
在第三种场景下,对应第二TRP对自身对应的接收波束进行更新指示。从而,第一接收波束对应第二TRP,第二接收波束对应第二TRP的更新波束,第一种场景和第三种场景综合考虑,即第二TRP的初始波束是由第一TRP发送第一指示信息来指示,第二TRP的更新波束是由第二TRP发送第一指示信息来指示。比如第一TRP对应服务小区的TRP,第二TRP可以对应服务小区或邻小区的TRP。
在第二种场景和第三种场景下,用于指示第一指示信息的信令也是不同的,下面通过两种实现方式说明。
作为一种实现方式,第一指示信息是第三MAC CE,其中,第三MAC CE用于指示第二TRP关联的第二控制资源集的标识,和第二TRP的更新波束对应的一个TCI状态索引,第二TRP的更新波束与第二控制资源集相对应。其中,第二控制资源集的标识,例如为CORESET#1或CORESET#2,或CORESET#3,本实施例中不进行限定。MAC CE激活的一个TCI状态索引还可以用于与第二控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或物理上行控制信道(Physical Uplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,SRS),定位参考信号(Positioning Reference Signal,PRS),解调参考信号(Demodulation Reference Signal,DMRS)等。即MAC CE激活的一个TCI状态索引可以对应的是一个通用波束,即common beam。
需要理解的是,TCI状态索引用于指示波束,也就是说根据TCI状态索引指示的参考信号资源可以确定对应的波束。
需要说明的是,第二控制资源集的标识可以和第一控制资源集的标识相同,也可以和第一控制资源集的标识不同。例如,第一控制资源集的标识为CORESET#0,第二控制资源集的标识为CORESET#1,或者,第一控制资源集的标识和第二控制资源集的标识均为CORESET#0或为CORESET#1。本实施例中不进行限定。
作为另一种实现方式,第一指示信息是第四MAC CE和第二DCI,其中,第四MAC CE用于指示多个激活的TCI状态索引,第二DCI用于指示第二TRP的更新波束对应的一个TCI状态索引,而一个TCI状态索引是第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。DCI指示的一个TCI状态索引还可以用于与第二控制资源集属于同一个group的其它控制资源集或物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或物理上行控制信道(PhysicalUplink Control Channel,PUCCH)或参考信号等的传输,参考信号包括信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS),探测参考信号(Sounding Reference Signal,SRS),定位参考信号(Positioning Reference Signal,,PRS),解调参考信号(Demodulation Reference Signal,DMRS)等。即DCI指示的一个TCI状态索引可以对应的是一个通用波束,即common beam。
在本公开实施例的一种实现方式中,第一MAC CE、第二MAC CE、第三MAC CE和第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引,或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
在本公开实施例的第二种实现方式中,第一MAC CE、第二MAC CE、第三MAC CE和第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引,其中,每个TCI状态索引具有对应的TRP的标识;或者,对应多个控制资源集池索引的多个TCI状态索引,其中,每个TCI状态索引具有对应的控制资源集池索引。
在本公开实施例的第二种实现方式中,第一MAC CE、第二MAC CE、第三MAC CE和第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,指示域用于指示至少一个TCI状态索引是否存在于至少一个MAC CE中。例如,(第一指示域),(第二指示域),(第一TRP的激活TCI域),(第二TRP的激活TCI域),第一指示域对应的是第一TRP,指示域为0则说明该MAC CE中(第一TRP的激活TCI域)里没有 TCI状态索引,即没有激活第一TRP对应的TCI状态。第二指示域对应的是第二TRP,指示域为1,则说明该MAC CE中(第二TRP的激活TCI域)里有TCI状态索引,即激活了第二TRP对应的TCI状态。
本公开实施例中,在MAC CE指示了多个激活的TCI状态索引时,在指示第二TRP的初始波束时,需要一个MAC CE指示多个TCI状态索引,和一个DCI指示第二TRP的初始波束对应的一个TCI状态索引,进一步,还需要指示第二TRP的更新波束时,需要再一个MAC CE指示多个TCI状态索引,以及一个DCI指示第二TRP的更新波束对应的一个TCI状态索引,也就是说在指示了第二TRP的初始波束后,又指示后续的更新波束,需要两个MAC CE,为了节省信令的开销,对MAC CE进行合并。
作为一种实现方式,本实施例中的第四MAC CE携带的多个激活的TCI状态索引中,包括与第二TRP的初始波束对应的一个TCI状态索引,也就是说第四MAC CE携带的多个激活的TCI状态索引中至少包含一个初始波束对应的TCI状态索引和一个更新波束对应的TCI状态索引,从而,当需要指示第二TRP的初始波束时,仅需要发送DCI,从第四MAC CE携带的多个激活的TCI状态索引中指示第二TRP的初始波束对应的一个TCI状态索引;或者不需要DCI去指示第二TRP的初始波束,直接将第四MAC CE中多个激活的TCI状态索引中的指定TCI状态索引确认为第二TRP的初始波束。比如指定TCI状态索引为对应TCI状态索引值最小的TCI状态索引;或第四MAC CE给出DCI的TCI指示域的codepoint与TCI状态组合之间的映射关系,TCI状态组合包含一个或2个TCI状态,而指定TCI状态索引为指定DCI codepoint对应的TCI状态组合中的一个TCI状态索引,比如指定DCI codepoint为codepoint取值最小的codepoint。并在后续需要指示第二TRP的更新波束时,再发送一个DCI指示第二TRP的更新波束对应的第四MAC CE中多个激活的TCI状态索引中的一个TCI状态索引。通过将指示初始波束和指示更新波束两种情况下的MAC CE通过一个MAC CE指示,实现了MAC CE的节约,降低了系统的开支。
本公开实施例中,在一些场景下,第一接收波束对应第一TRP,第二接收波束对应第二TRP的初始波束,在另一个场景下,第一接收波束对应第一TRP,第二接收波束对应第二TRP的更新波束,在这两种场景下,MAC CE用于指示多个激活的TCI状态索引时,还需要DCI从多个激活的TCI状态索引中指示一个TCI状态索引,并指示该一个TCI状态索引是对应第一TRP还是对应第二TRP,以提高指示的效率和准确度。下面,本实施例中通过以下三种实现方式进行具体说明:
作为第一种实现方式,第一DCI和第二DCI中包含目标指示域,其中,目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。也就是说目标指示域指示了TCI状态索引对应哪个TRP和/或对应哪个控制资源集池。其中,每一个控制资源集池索引和TRP具有对应关系,确定了控制资源集池索引,则确定了对应的是哪个TRP,例如,对应的是第一TRP或第二TRP。
作为第二种实现方式,第一DCI和第二DCI中,每个TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。也就是说,不同的TCI状态索引具有对应的一个TRP的标识,即TRP标识不同,对应的TCI状态索引则不同,例如,第一TRP对应的TCI状态索引为1和2,则第二TRP对应的TCI状态索引为3和4。从而,根据TCI状态索引对应预设的一个TRP的标识,即可确定对应的TRP是哪个TRP,例如为第一TRP或第二TRP。或者,不同的TCI状态索引具有对应的一个控制资源集池索引,根据TCI状态索引对应预设的一个控制资源集池索引,即可确定对应的TRP是哪个TRP,例如为第一TRP或第二TRP。其中,每一个控制资源集池索引和TRP具有对应关系,确定了控制资源集池索引,则确定了对应的是哪个TRP,例如,对应的是第一TRP或第二TRP。
作为第三种实现方式,第一DCI和第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
以第一DCI为例进行说明,其中,作为一种实现方式,第一DCI中TCI状态索引对应的TRP的标识,是激活TCI状态索引的MAC CE所指示的TRP标识,也就是说MAC CE指示了TRP标识。其中,作为一种实现方式,MAC CE格式中,激活不同的TRP的TCI状态索引的比特位置设置不同,根据比特的位置,即可确定激活的是属于哪个TRP的TCI状态索引。作为第二种实现方式,第一DCI中对应的控制资源集池索引,是激活TCI状态索引的MAC CE所指示控制资源集池索引。作为第三种实现方式,MAC CE格式中包含了CORESET ID,而每个CORESET ID对应唯一的控制资源集池索引,所以根据CORESET ID 可以确定该TCI状态索引对应的TRP。作为第四种实现方式,还可以设置不同的比特值,用于指示是否激活各个TRP的TCI状态索引,以及激活的哪个TRP的TCI状态索引。
本公开实施例中,使用第一发送波束向终端设备发送第一指示信息,其中,第一发送波束和第一接收波束对应,也就是说终端设备是使用第一接收波束接收的第一指示信息。其中,关于终端设备使用的第一接收波束的确定方法,作为本公开实施例的一种实现方式,第一接收波束是第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。其中,初始接收波束,是终端设备与第一TRP进行上下行传输所首次采用的波束。第一TRP关联的CORESET#0对应的初始接收波束可以是终端设备根据检测网络设备发送的同步信号块SSB的RSRP的值确定的,若终端设备检测到RSRP的值超过门限值,则使用该SSB对应的PRACH资源发起随机接入,也就是说将该SSB对应的接收波束作为CORESET#0的初始结束波束,从而确定了第一接收波束。
图4为本公开实施例提供的另一种波束指示方法的流程示意图,应用于网络设备,说明了另一种指示终端设备的第一接收波束的方法,如图2所示,该方法包含以下步骤:
步骤401,使用终端设备的已知接收波束对应的发送波束,向终端设备发送第二指示信息。
其中,第二指示信息,用于指示终端设备的第一接收波束,已知接收波束对应第一TRP。
本公开实施例中,已知接收波束,是第一TRP向终端设备发送下行传输时,终端设备已经采用过的接收波束。作为一种实现方式,已知接收波束与第一TRP关联的CORESET#0对应,也就是说已知接收波束,是通过终端设备检测网络设备发送的同步信号块SSB的RSRP的值,在RSRP的值大于门限值时确定的对应CORESET#0的波束。作为另一种实现方式,已知接收波束,与第一TRP关联的第三控制资源集对应,通过第一TRP关联的CORESET#0发送的第三指示信息指示。
步骤402,使用第一发送波束向终端设备发送第一指示信息。
其中,步骤402,可参照前述任一实施例中的解释说明,原理相同,此处不再赘述。
本实施例的波束指示方法中,网络设备采用第一发送波束向终端设备发送第一指示信息,以确定后续终端设备和网络设备通信时,终端设备采用的第二接收波束。其中,第一接收波束对应第一发送接收点TRP或者第二TRP,第二接收波束对应第二TRP,从而后续网络设备采用第二TRP发送指示波束的信令时,终端设备采用第二接收波束进行接收,完成了终端设备接收波束的指示,提高了信令的接收成功率。
与上述几种实施例提供的波束指示方法相对应,本公开还提供一种波束指示装置,由于本公开实施例提供的波束指示装置与上述几种实施例提供的方法相对应,因此在波束指示方法的实施方式也适用于本实施例提供的波束指示装置,在本实施例中不再详细描述。
图5为本公开实施例提供的一种波束指示装置110的结构示意图。所述装置应用于终端设备。
如图5所示,该波束指示装置110包括:接收模块51。
接收模块51,用于使用第一接收波束接收网络设备发送的第一指示信息,第一指示信息,用于指示第二接收波束;
其中,第一接收波束对应第一发送接收点TRP或者第二TRP,第二接收波束对应第二TRP。
进一步,作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层控制元素MAC CE;
其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应第一TRP,所述第二接收波束对应第二TRP的更 新波束;
或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个激活的TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,所述装置,还包括:
确定模块,用于确定所述第一接收波束;
其中,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0的初始接收波束。
作为一种可能的实现方式,上述接收模块51,还用于
采用对应所述第一TRP的已知接收波束,接收第二指示信息,所述第二指示信息用于确定所述第一接收波束。
作为一种可能的实现方式,已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,是使用所述第一TRP关联的CORESET#0发送的第三指示信息指示。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开实施例的装置中,终端设备采用第一接收波束接收第一指示信息,以确定后续终端设备和网络设备通信时采用的第二接收波束。其中,第一接收波束对应第一发送接收点TRP或者第二TRP,也就是说第一接收波束可以是用于接收第一TRP发送的第一指示信息时使用的接收波束,或者是用于接收第二TRP发送的第一指示信息时使用的接收波束。并根据第一指示信息,确定对应第二TRP的第二接收波束,从而后续在接收网络设备采用第二TRP发送指示信令时,采用第二接收波束进行接收,完成了接收波束的 指示,提高了信令的接收成功率。
与上述几种实施例提供的波束指示方法相对应,本公开还提供一种波束指示装置,由于本公开实施例提供的波束指示装置与上述几种实施例提供的波束指示方法相对应,因此在波束指示方法的实施方式也适用于本实施例提供的波束指示装置,在本实施例中不再详细描述。
图6为本公开实施例提供的一种波束指示装置120的结构示意图。所述装置应用于网络设备。
其中,波束指示装置120包含发送模块61。
发送模块61,用于使用第一发送波束向终端设备发送第一指示信息;
其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端设备的第一接收波束;所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
进一步,作为一种可能的实现方式,所述第一接收波束是所述第一TRP的波束,所述第二接收波束是所述第二TRP的初始波束。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层的控制元素MAC CE;其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;其中,所述第二MAC CE用于指示多个激活的TCI状态索引;所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP的波束,所述第二接收波束对应第二TRP的更新波束;或者,所述第一接收波束对应所述第二TRP的波束,所述第二接收波束对应第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。
作为一种可能的实现方式,上述发送模块61,还用于
使用所述终端设备的已知接收波束对应的发送波束,向所述终端设备发送第二指示信息;其中,所述第二指示信息,用于指示所述终端设备的所述第一接收波束,所述已知接收波束对应所述第一TRP。
作为一种可能的实现方式,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,通过所述第一TRP关联的CORESET#0 发送的第三指示信息指示。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
本公开实施例中,网络设备采用第一发送波束向终端设备发送第一指示信息,以确定后续终端设备和网络设备通信时,终端设备采用的第二接收波束。其中,第一接收波束对应第一发送接收点TRP或者第二TRP,第二接收波束对应第二TRP,从而后续网络设备采用第二TRP发送指示信令时,终端设备采用第二接收波束进行接收,提高了信令的接收成功率。
图7是本公开实施例所提供的一种终端设备的框图。例如,终端设备可以是移动电话,计算机,数字广播用户设备,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。
如图7所示,终端包括:收发机800、处理器810、存储器820。
其中,存储器820,用于存储计算机程序;收发机800,用于在处理器810的控制下收发数据;处理器810,用于读取存储器820中的计算机程序并执行以下操作:
使用第一接收波束接收网络设备发送的第一指示信息,所述第一指示信息,用于指示第二接收波束;
其中,所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
收发机800,用于在处理器810的控制下接收和发送数据。
其中,在图7中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器810代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机800可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元,这些传输介质包括,这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备,用户接口还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器810负责管理总线架构和通常的处理,存储器820可以存储处理器810在执行操作时所使用的数据。
可选的,处理器810可以是中央处埋器(Central Processing Unit,简称CPU)、专用集成电路(Application Specific Integrated Circuit,简称ASIC)、现场可编程门阵列(Field-Programmable Gate Array,简称FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,简称CPLD),处理器810也可以采用多核架构。
处理器810通过调用存储器存储的计算机程序,用于按照获得的可执行指令执行本公开实施例提供的图1至图2任一方法。处理器810与存储器820也可以物理上分开布置。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层控制元素MAC CE;
其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对 应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应第一TRP,所述第二接收波束对应第二TRP的更新波束;
或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个激活的TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,还包括:
确定所述第一接收波束;
其中,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0的初始接收波束。
作为一种可能的实现方式,还包括:
采用对应所述第一TRP的已知接收波束,接收第二指示信息,所述第二指示信息用于确定所述第一接收波束。
作为一种可能的实现方式,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,是使用所述第一TRP关联的CORESET#0发送的第三指示信息指示。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:对应一个TRP的标识的一个或多个TCI状态索引;或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
在此需要说明的是,本发明实施例提供的上述终端设备,能够实现上述图1至图2方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
如图8所示,为本公开实施例所提供的一种网络设备的结构示意图。如图8所示,网络设备包括:收发机900、处理器910、存储器920。
其中,存储器920,用于存储计算机程序;收发机900,用于在处理器910的控制下收发数据;处理器910,用于读取存储器920中的计算机程序并执行以下操作:
使用第一发送波束向终端设备发送第一指示信息;
其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端设备的第一接收波束;
所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
收发机900,用于在处理器910的控制下接收和发送数据。
其中,在图8中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器910代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机900可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元,这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器910负责管理总线架构和通常的处理,存储器920可以存储处理器910在执行操作时所使用的数据。
处理器910可以是CPU、ASIC、FPGA或CPLD,处理器910也可以采用多核架构。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
作为一种可能的实现方式,所述第一指示信息是第一媒体接入控制层的控制元素MAC CE;其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;其中,所述第二MAC CE用于指示多个激活的TCI状态索引;所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的更新波束;或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应所述第二TRP的更新波束。
作为一种可能的实现方式,所述第一指示信息是第三MAC CE;
其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
作为一种可能的实现方式,所述第一指示信息是第四MAC CE和第二DCI;
其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
作为一种可能的实现方式,所述第四MAC CE携带的多个TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
作为一种可能的实现方式,所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
作为一种可能的实现方式,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。
作为一种可能的实现方式,还包括:
使用所述终端设备的已知接收波束对应的发送波束,向所述终端设备发送第二指示信息;
其中,所述第二指示信息,用于指示所述终端设备的所述第一接收波束,所述已知接收波束对应所述第一TRP。
作为一种可能的实现方式,所述已知接收波束,与所述第一TRP关联的CORESET#0对应;或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,通过所述第一TRP关联的CORESET#0发送的第三指示信息指示。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应一个TRP的标识的一个或多个TCI状态索引;
或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
作为一种可能的实现方式,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
在此需要说明的是,本发明实施例提供的上述网络设备,能够实现上述图3至图4方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
为了实现上述实施例,本公开还提出一种通信系统。
本公开实施例提供的通信系统,包含终端设备和网络设备,终端设备能够实现前述1-2任一所述的波束指示方法,网络设备能够实现前述3-4任一所述的波束指示方法。
为了实现上述实施例,本公开还提出一种计算机存储介质。
本公开实施例提供的计算机存储介质,存储有可执行程序;所述可执行程序被处理器执行后,能够实现前述方法,例如,如图1至图4的至少其中之一。
为了实现上述实施例,本公开还提出一种计算机程序产品。
本公开实施例提供的计算机程序产品,其中,可执行程序被处理器执行后,能够实现前述方法,例如,如图1至图4的至少其中之一。
本领域技术人员在考虑说明书及实践这里公开的发明后,将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、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的一般性原理并包括本公开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,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开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。本公开的范围仅由所附的权利要求来限制。

Claims (72)

  1. 一种波束指示方法,其特征在于,应用于终端设备,包括:
    使用第一接收波束接收网络设备发送的第一指示信息,所述第一指示信息,用于指示第二接收波束;
    其中,所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
  2. 根据权利要求1所述的波束指示方法,其特征在于,
    所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
  3. 根据权利要求2所述的波束指示方法,其特征在于,所述第一指示信息是第一媒体接入控制层控制元素MAC CE;
    其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
  4. 根据权利要求2所述的波束指示方法,其特征在于,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
    其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
    所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  5. 根据权利要求1所述的波束指示方法,其特征在于,
    所述第一接收波束对应第一TRP,所述第二接收波束对应第二TRP的更新波束;
    或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应第二TRP的更新波束。
  6. 根据权利要求5所述的波束指示方法,其特征在于,所述第一指示信息是第三MAC CE;
    其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
  7. 根据权利要求5所述的波束指示方法,其特征在于,所述第一指示信息是第四MAC CE和第二DCI;
    其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
    所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  8. 根据权利要求7所述的波束指示方法,其特征在于;
    所述第四MAC CE携带的多个激活的TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
  9. 根据权利要求4、7或8所述的波束指示方法,其特征在于,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
  10. 根据权利要求4、7或8所述的波束指示方法,其特征在于,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
  11. 根据权利要求4、7或8所述的波束指示方法,其特征在于,
    所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
  12. 根据权利要求1所述的波束指示方法,其特征在于,所述方法,还包括:
    确定所述第一接收波束;
    其中,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0的初始接收波束。
  13. 根据权利要求1所述的波束指示方法,其特征在于,所述方法,还包括:
    采用对应所述第一TRP的已知接收波束,接收第二指示信息,所述第二指示信息用于确定所述第一接 收波束。
  14. 根据权利要求13所述的波束指示方法,其特征在于,
    所述已知接收波束,与所述第一TRP关联的CORESET#0对应;
    或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,是使用所述第一TRP关联的CORESET#0发送的第三指示信息指示。
  15. 根据权利要求3、4、6或7所述的波束指示方法,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应一个TRP的标识的一个或多个TCI状态索引;
    或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
  16. 根据权利要求3、4、6或7所述的波束指示方法,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
    或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
  17. 根据权利要求3、4、6或7所述的波束指示方法,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
  18. 一种波束指示方法,其特征在于,应用于网络设备,包括:
    使用第一发送波束向终端设备发送第一指示信息;
    其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端设备的第一接收波束;
    所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
  19. 根据权利要求18所述的波束指示方法,其特征在于,
    所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
  20. 根据权利要求19所述的波束指示方法,其特征在于,所述第一指示信息是第一媒体接入控制层的控制元素MAC CE;
    其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
  21. 根据权利要求19所述的波束指示方法,其特征在于,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
    其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
    所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  22. 根据权利要求18所述的波束指示方法,其特征在于,
    所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的更新波束;
    或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应所述第二TRP的更新波束。
  23. 根据权利要求22所述的波束指示方法,其特征在于,所述第一指示信息是第三MAC CE;
    其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
  24. 根据权利要求22所述的波束指示方法,其特征在于,所述第一指示信息是第四MAC CE和第二DCI;
    其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
    所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  25. 根据权利要求24所述的波束指示方法,其特征在于,
    所述第四MAC CE携带的多个TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
  26. 根据权利要求21、24或25所述的波束指示方法,其特征在于,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
  27. 根据权利要求21、24或25所述的波束指示方法,其特征在于,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
  28. 根据权利要求21、24或25所述的波束指示方法,其特征在于,
    所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
  29. 根据权利要求18所述的波束指示方法,其特征在于,
    所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。
  30. 根据权利要求18所述的波束指示方法,其特征在于,所述方法,还包括:
    使用所述终端设备的已知接收波束对应的发送波束,向所述终端设备发送第二指示信息;
    其中,所述第二指示信息,用于指示所述终端设备的所述第一接收波束,所述已知接收波束对应所述第一TRP。
  31. 根据权利要求30所述的波束指示方法,其特征在于,
    所述已知接收波束,与所述第一TRP关联的CORESET#0对应;
    或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,通过所述第一TRP关联的CORESET#0发送的第三指示信息指示。
  32. 根据权利要求20、21、23或24所述的波束指示方法,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应一个TRP的标识的一个或多个TCI状态索引;
    或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
  33. 根据权利要求20、21、23或24所述的波束指示方法,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
    或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
  34. 根据权利要求20、21、23或24所述的波束指示方法,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
  35. 一种波束指示装置,其特征在于,应用于终端设备,包括:
    接收模块,用于使用第一接收波束接收网络设备发送的第一指示信息,所述第一指示信息,用于指示第二接收波束;
    其中,所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
  36. 一种波束指示装置,其特征在于,应用于网络设备,包括:
    发送模块,用于使用第一发送波束向终端设备发送第一指示信息;
    其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端 设备的第一接收波束;
    所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
  37. 一种终端设备,其特征在于,其中,包括:收发机;存储器和处理器;
    所述存储器,用于存储计算机程序;所述收发机,用于在所述处理器的控制下收发数据;所述处理器,用于读取所述存储器中的计算机程序以执行以下操作:
    使用第一接收波束接收网络设备发送的第一指示信息,所述第一指示信息,用于指示第二接收波束;
    其中,所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
  38. 如权利要求37所述的终端设备,其特征在于,
    所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
  39. 根据权利要求38所述的终端设备,其特征在于,所述第一指示信息是第一媒体接入控制层控制元素MAC CE;
    其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
  40. 根据权利要求38所述的终端设备,其特征在于,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
    其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
    所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  41. 根据权利要求37所述的终端设备,其特征在于,
    所述第一接收波束对应第一TRP,所述第二接收波束对应第二TRP的更新波束;
    或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应第二TRP的更新波束。
  42. 根据权利要求41所述的终端设备,其特征在于,所述第一指示信息是第三MAC CE;
    其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
  43. 根据权利要求41所述的终端设备,其特征在于,所述第一指示信息是第四MAC CE和第二DCI;
    其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
    所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  44. 根据权利要求43所述的终端设备,其特征在于;
    所述第四MAC CE携带的多个激活的TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
  45. 根据权利要求404、43或44所述的终端设备,其特征在于,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
  46. 根据权利要求40、43或44所述的终端设备,其特征在于,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
  47. 根据权利要求40、43或44所述的终端设备,其特征在于,
    所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
  48. 根据权利要求37所述的终端设备,其特征在于,还包括:
    确定所述第一接收波束;
    其中,所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0的初始接收波束。
  49. 根据权利要求37所述的终端设备,其特征在于,还包括:
    采用对应所述第一TRP的已知接收波束,接收第二指示信息,所述第二指示信息用于确定所述第一接收波束。
  50. 根据权利要求49所述的终端设备,其特征在于,
    所述已知接收波束,与所述第一TRP关联的CORESET#0对应;
    或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,是使用所述第一TRP关联的CORESET#0发送的第三指示信息指示。
  51. 根据权利要求39、40、42或43所述的终端设备,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应一个TRP的标识的一个或多个TCI状态索引;
    或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
  52. 根据权利要求39、40、42或43所述的终端设备,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
    或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
  53. 根据权利要求39、40、42或43所述的终端设备,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
  54. 一种网络设备,其特征在于,其中,包括:收发机;存储器和处理器;
    所述存储器,用于存储计算机程序;所述收发机,用于在所述处理器的控制下收发数据;所述处理器,用于读取所述存储器中的计算机程序以执行以下操作:
    使用第一发送波束向终端设备发送第一指示信息;
    其中,所述第一指示信息,用于指示所述终端设备的第二接收波束,所述第一发送波束对应所述终端设备的第一接收波束;
    所述第一接收波束对应第一发送接收点TRP或者第二TRP,所述第二接收波束对应所述第二TRP。
  55. 根据权利要求54所述的网络设备,其特征在于,
    所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的初始波束。
  56. 根据权利要求55所述的网络设备,其特征在于,所述第一指示信息是第一媒体接入控制层的控制元素MAC CE;
    其中,所述第一MAC CE用于指示所述第二TRP关联的第一控制资源集的标识,和所述第二TRP的初始波束对应的一个传输配置指示TCI状态索引,所述第二TRP的初始波束与所述第一控制资源集相对应。
  57. 根据权利要求55所述的网络设备,其特征在于,所述第一指示信息是第二MAC CE和第一下行链路控制信息DCI;
    其中,所述第二MAC CE用于指示多个激活的TCI状态索引;
    所述第一DCI用于指示所述第二TRP的初始波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第二MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  58. 根据权利要求54所述的网络设备,其特征在于,
    所述第一接收波束对应所述第一TRP,所述第二接收波束对应所述第二TRP的更新波束;
    或者,所述第一接收波束对应所述第二TRP,所述第二接收波束对应所述第二TRP的更新波束。
  59. 根据权利要求58所述的网络设备,其特征在于,所述第一指示信息是第三MAC CE;
    其中,所述第三MAC CE用于指示所述第二TRP关联的第二控制资源集的标识,和所述第二TRP的 更新波束对应的一个TCI状态索引,所述第二TRP的更新波束与所述第二控制资源集相对应。
  60. 根据权利要求58所述的网络设备,其特征在于,所述第一指示信息是第四MAC CE和第二DCI;
    其中,所述第四MAC CE用于指示多个激活的TCI状态索引;
    所述第二DCI用于指示所述第二TRP的更新波束对应的一个TCI状态索引,所述一个TCI状态索引是所述第四MAC CE中包含的多个激活的TCI状态索引中的一个TCI状态索引。
  61. 根据权利要求60所述的网络设备,其特征在于,
    所述第四MAC CE携带的多个TCI状态索引中,包括与所述第二TRP的初始波束对应的一个TCI状态索引。
  62. 根据权利要求57、60或61所述的网络设备,其特征在于,所述第一DCI和所述第二DCI中包含目标指示域,所述目标指示域,用于指示TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引。
  63. 根据权利要求57、60或61所述的网络设备,其特征在于,所述第一DCI和所述第二DCI中,每个所述TCI状态索引对应预设的一个TRP的标识和/或对应一个控制资源集池索引。
  64. 根据权利要求57、60或61所述的网络设备,其特征在于,
    所述第一DCI和所述第二DCI中TCI状态索引对应的TRP的标识和/或对应的控制资源集池索引,是激活所述TCI状态索引的MAC CE所指示TRP标识和/或控制资源集池索引。
  65. 根据权利要求54所述的网络设备,其特征在于,
    所述第一接收波束是所述第一TRP关联的控制资源集合CORESET#0对应的初始接收波束。
  66. 根据权利要求54所述的网络设备,其特征在于,还包括:
    使用所述终端设备的已知接收波束对应的发送波束,向所述终端设备发送第二指示信息;
    其中,所述第二指示信息,用于指示所述终端设备的所述第一接收波束,所述已知接收波束对应所述第一TRP。
  67. 根据权利要求66所述的网络设备,其特征在于,
    所述已知接收波束,与所述第一TRP关联的CORESET#0对应;
    或者,所述已知接收波束,与所述第一TRP关联的第三控制资源集对应,通过所述第一TRP关联的CORESET#0发送的第三指示信息指示。
  68. 根据权利要求56、57、59或60所述的网络设备,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应一个TRP的标识的一个或多个TCI状态索引;
    或者,对应一个控制资源集池索引的一个或多个TCI状态索引。
  69. 根据权利要求56、57、59或60所述的网络设备,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应多个TRP的标识的多个TCI状态索引;其中,每个TCI状态索引具有对应的所述TRP的标识;
    或者,对应多个控制资源集池索引的多个TCI状态索引;其中,每个TCI状态索引具有对应的控制资源集池索引。
  70. 根据权利要求56、57、59或60所述的网络设备,其特征在于,所述第一MAC CE、所述第二MAC CE、所述第三MAC CE和所述第四MAC CE中至少一个MAC CE包括:
    对应至少一个TCI状态索引的指示域,所述指示域用于指示所述至少一个TCI状态索引是否存在于所述至少一个MAC CE中。
  71. 一种计算机存储介质,其特征在于,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现权利要求1至17任一项所述的方法。
  72. 一种计算机存储介质,其特征在于,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现权利要求18至34任一项所述的方法。
PCT/CN2021/070182 2021-01-04 2021-01-04 波束指示方法、装置及通信设备 WO2022141642A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020237026325A KR20230125315A (ko) 2021-01-04 2021-01-04 빔 지시 방법, 장치 및 통신 기기(beam indicationmethod and apparatus, and communication device)
CN202180000039.1A CN113170467B (zh) 2021-01-04 2021-01-04 波束指示方法、装置及通信设备
PCT/CN2021/070182 WO2022141642A1 (zh) 2021-01-04 2021-01-04 波束指示方法、装置及通信设备
JP2023540971A JP2024503824A (ja) 2021-01-04 2021-01-04 ビーム指示方法、装置及び通信機器
EP21912425.2A EP4274332A4 (en) 2021-01-04 2021-01-04 BEAM DISPLAY METHOD AND DEVICE AND COMMUNICATION DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/070182 WO2022141642A1 (zh) 2021-01-04 2021-01-04 波束指示方法、装置及通信设备

Publications (1)

Publication Number Publication Date
WO2022141642A1 true WO2022141642A1 (zh) 2022-07-07

Family

ID=76875974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/070182 WO2022141642A1 (zh) 2021-01-04 2021-01-04 波束指示方法、装置及通信设备

Country Status (5)

Country Link
EP (1) EP4274332A4 (zh)
JP (1) JP2024503824A (zh)
KR (1) KR20230125315A (zh)
CN (1) CN113170467B (zh)
WO (1) WO2022141642A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109315009A (zh) * 2018-09-20 2019-02-05 北京小米移动软件有限公司 一种通信方法、装置、终端、基站和存储介质
CN110971361A (zh) * 2018-09-28 2020-04-07 华为技术有限公司 一种控制信道波束指示方法及设备
WO2020227139A1 (en) * 2019-05-03 2020-11-12 Apple Inc. Beam switching based on dci indication for multi-trp urllc

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180227024A1 (en) * 2017-02-03 2018-08-09 Futurewei Technologies, Inc. Method and Apparatus of Beam Recommendation in Communication Systems
US20190297603A1 (en) * 2018-03-23 2019-09-26 Samsung Electronics Co., Ltd. Method and apparatus for beam management for multi-stream transmission
CN111385824B (zh) * 2018-12-29 2022-06-10 成都华为技术有限公司 一种信息传输方法、网络设备、终端设备及存储介质
CN111510267B (zh) * 2019-01-31 2021-12-14 成都华为技术有限公司 波束指示的方法和通信装置
US11729800B2 (en) * 2019-03-28 2023-08-15 Ofinno, Llc Control channel with multiple transmission reception points
US10826568B1 (en) * 2019-05-03 2020-11-03 Qualcomm Incorporated Simultaneous multiple default beams
CN111344994B (zh) * 2020-02-14 2022-11-04 北京小米移动软件有限公司 数据传输方法及数据传输装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109315009A (zh) * 2018-09-20 2019-02-05 北京小米移动软件有限公司 一种通信方法、装置、终端、基站和存储介质
CN110971361A (zh) * 2018-09-28 2020-04-07 华为技术有限公司 一种控制信道波束指示方法及设备
WO2020227139A1 (en) * 2019-05-03 2020-11-12 Apple Inc. Beam switching based on dci indication for multi-trp urllc

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
See also references of EP4274332A4 *
XIAOMI: "Enhancements on multi-beam operation", 3GPP DRAFT; R1-2009027, vol. RAN WG1, 23 October 2020 (2020-10-23), pages 1 - 6, XP051946795 *

Also Published As

Publication number Publication date
JP2024503824A (ja) 2024-01-29
EP4274332A4 (en) 2024-03-13
CN113170467B (zh) 2023-01-10
EP4274332A1 (en) 2023-11-08
KR20230125315A (ko) 2023-08-29
CN113170467A (zh) 2021-07-23

Similar Documents

Publication Publication Date Title
US20200178330A1 (en) Transmission Method and Device for Sidelink Information and Communication System
US11522274B2 (en) Facilitating user equipment beamforming control
CN110169137B (zh) 用于传递系统信息的系统和方法
JP6962443B2 (ja) 命令受信方法、装置及び通信システム
CN111182591B (zh) 网络切换的方法和装置
WO2021027895A1 (en) Method and device for determining codebook subset, and user equipment
WO2022147720A1 (zh) 波束指示方法、装置及通信设备
US10993149B2 (en) Operating a terminal device in a cellular mobile communication network
US20210377916A1 (en) Wireless Communications Method and Apparatus
WO2019029356A1 (zh) 一种波束训练方法及装置、通信系统
CN112292877A (zh) 用于双连接的自动邻居关系增强
US20160021591A1 (en) Data transmission method, communications device, and communications system
WO2018223426A1 (zh) 波束失败报告发送方法、接收方法、用户设备和网络设备
US20240098830A1 (en) Communication method and apparatus
WO2019178776A1 (zh) 传输信息的方法和设备
CN115707036A (zh) 传输数据的方法和装置
CN112399418B (zh) 用于通信的方法和装置
JP2022544501A (ja) サイドリンクrrc手順
WO2020034969A1 (zh) 信号传输方法、波束确定方法及其装置
WO2022253150A1 (zh) 数据传输方法及装置
WO2022156751A1 (zh) 路径切换的方法、终端及网络侧设备
WO2022141642A1 (zh) 波束指示方法、装置及通信设备
WO2022133692A1 (zh) 状态切换的方法、终端设备和网络设备
CN115915167A (zh) 一种通信方法及通信装置
WO2022211015A1 (ja) 通信装置、基地局及び通信方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21912425

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2023540971

Country of ref document: JP

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112023013328

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 20237026325

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020237026325

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2021912425

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2021912425

Country of ref document: EP

Effective date: 20230804

WWE Wipo information: entry into national phase

Ref document number: 11202305123X

Country of ref document: SG

ENP Entry into the national phase

Ref document number: 112023013328

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20230703