WO2022147720A1 - 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

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Publication number
WO2022147720A1
WO2022147720A1 PCT/CN2021/070676 CN2021070676W WO2022147720A1 WO 2022147720 A1 WO2022147720 A1 WO 2022147720A1 CN 2021070676 W CN2021070676 W CN 2021070676W WO 2022147720 A1 WO2022147720 A1 WO 2022147720A1
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Prior art keywords
indication
coreset
field
tci
mac
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PCT/CN2021/070676
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English (en)
French (fr)
Inventor
李明菊
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202180000107.4A priority Critical patent/CN112806083B/zh
Priority to US18/260,499 priority patent/US20240073703A1/en
Priority to PCT/CN2021/070676 priority patent/WO2022147720A1/zh
Priority to EP21916778.0A priority patent/EP4277387A4/en
Publication of WO2022147720A1 publication Critical patent/WO2022147720A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections

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 base station When a network device, for example, a base station has multiple transmission and reception points ((Transmission and Reception Point, TRP), the base station can use multiple TRPs to provide services for the terminal, including using multiple TRPs to send a physical downlink control channel (physical downlink) to the terminal control channel, PDCCH.
  • TRP Transmission and Reception Point
  • PDCCH terminal control channel
  • a beam indication method, apparatus and communication device proposed in the present disclosure are used to solve the technical problem of how a terminal determines the receiving beam used when the PDCCH used to receive Multi-TRP transmits signaling using each CORESET.
  • a beam indication method proposed by an embodiment of the present disclosure, applied to a terminal device includes:
  • the beam indication information is used to indicate the TCI state of the beam corresponding to each CORESET in the CORESET group;
  • Control information is received according to the beam indication information.
  • Another beam indication method proposed by an embodiment of the present disclosure, applied to a network device includes:
  • a beam indication apparatus which is applied to a terminal device, and includes:
  • a first receiving module configured to receive beam indication information of a control resource set CORESET group, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate each CORESET in the CORESET group TCI status of the corresponding beam;
  • the second receiving module is configured to receive control information according to the beam indication information.
  • Another beam indication apparatus proposed by an embodiment of the present disclosure, applied to a network device includes:
  • a first sending module configured to send beam indication information of a CORESET group to a terminal device, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate each CORESET in the CORESET group TCI status of the corresponding beam;
  • the second sending module is configured to send control information to the terminal device according to the TCI states of the beams corresponding to each CORESET in the CORESET group.
  • a communication device provided by an embodiment of the present disclosure includes: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, and configured to execute computer-executable instructions on the memory, The transceiver is controlled to transmit and receive wireless signals, and the beam indication method described in the foregoing aspect or another aspect can be implemented.
  • 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 foregoing aspect or another aspect can be implemented The 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 beam indication information of the CORESET group in the control resource set wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate the TCI status of the beam corresponding to each CORESET in the CORESET group.
  • the receiving control information the receiving control information.
  • the receiving beam used by the terminal equipment when receiving the PDCCH and using each CORESET to transmit signaling is determined, thereby realizing beam indication.
  • FIG. 1 is a schematic flowchart of a beam indication method provided by 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 structural diagram of a beam pointing device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another beam pointing device provided by an embodiment of the present disclosure.
  • FIG. 6 is a block diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 7 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.”
  • Transmission and Reception Point (Transmission and Reception Point, 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.
  • the network device has multiple corresponding TRPs, and the network device can use multiple TRPs to provide services for the terminal device, including using multiple TRPs to send PDCCH for the terminal device.
  • the PDCCH transmission used for Multi-TRP has corresponding one or more CORESETs, and the number of Transmission Configuration Indicator (TCI) states of the receiving beams corresponding to each CORESET is different, which can be one or more Among them, the TCI state is used to indicate the reference signal resource identifier corresponding to the beam. Therefore, when the terminal device receives the signaling based on the CORESET group transmission, it needs to determine the corresponding receiving beam.
  • TCI Transmission Configuration Indicator
  • this embodiment provides a beam indication The method is based on the received beam indication information of the CORESET group, wherein the beam indication information is used to indicate the TCI state of the beam corresponding to each CORESET in the CORESET group, and the TCI state indicates the receiving method used by the terminal equipment when receiving the PDCCH using each CORESET to transmit signaling. Beam, which realizes the indication of the beam.
  • 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 Receive beam indication information of a control resource set CORESET group, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate the TCI state of the beam corresponding to each CORESET in the CORESET group.
  • 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.
  • Step 102 Receive control information according to the beam indication information.
  • the CORESET group is a CORESET group used for PDCCH transmission of Multi-TRP.
  • the number of CORESETs included in the CORESET group may be one or more.
  • the terminal device uses the beam indication information of the received CORESET group to use the TCI state of the beam corresponding to each CORESET indicated by the beam indication information, wherein the TCI state indicates the terminal when receiving the PDCCH and using each CORESET to transmit signaling.
  • the corresponding receiving beam The beam indication is realized, and the receiving beam is used to receive control information, wherein the control information can be DCI signaling sent by PDCCH on each CORESET in the CORESET group, thereby improving the success rate of control information receiving.
  • the number of CORESETs included in the CORESET group may be one or more.
  • the number of TCI states corresponding to different CORESETs is also different. The following examples are used to address different The CORESET group in the scenario and the TCI status corresponding to each CORESET are described.
  • the CORESET group includes one first CORESET, where the maximum number of first TCI states corresponding to the first CORESET is greater than or equal to two.
  • the CORESET group includes a first CORESET, so the beam indication information received by the terminal device is the beam indication information of the first CORESET, so the beam indication information indicates the first TCI state of the beam corresponding to the first CORESET,
  • the maximum number of first TCI states of the beam corresponding to the first CORESET is greater than or equal to two, that is, the receiving beam determined by the terminal is the beam indicated by one or more first TCI states of the beam corresponding to the first CORESET
  • the terminal device uses one or more receiving beams indicated by the first TCI state to receive the control information, thereby realizing the determination of the receiving beams in the terminal device and improving the success rate of receiving the control information.
  • the index of the control resource set pool corresponding to each first TCI state is different, or the TRP corresponding to each first TCI state is different, wherein the index of the control resource set pool corresponds to one TRP, that is, different control resources
  • the pool index corresponds to different TRPs, so that each first TCI state corresponding to one CORESET can correspond to different TRPs, that is to say, different receiving beams determined by the terminal device according to each first TCI state corresponding to one CORESET can correspond to different receiving beams.
  • TRP that is, to configure different receiving beams to receive control information sent by different TRPs.
  • the first CORESET and the first TCI state are for the convenience of distinguishing from the CORESET and TCI in other subsequent embodiments, and do not have priorities.
  • the beam indication information of the first CORESET may be a control element (Control Element, CE, or control unit) MAC CE of the first Medium Access Control (Medium Access Control, MAC) layer, or a DCI , and the different implementations are described below.
  • the beam indication information is a MAC CE.
  • the first MAC CE includes the identity of the first CORESET and/or the CORESET group identity, for example, the identity of the first CORESET is CORESET#1, or CORESET#2, or CORESET#3; for example, the CORESET group identity is CORESET group# 1.
  • CORESET group #2 which is not limited in this embodiment.
  • the first MAC CE also includes a first indication field and/or an associated second indication field, which will be described in detail below.
  • the first MAC CE only includes the first indication field, that is to say, the first indication field always appears in the first MAC CE, and there is no need to indicate whether the first indication field is associated with the second indication field. appears in the first MAC CE.
  • the first MAC CE only includes the second indication field.
  • the value of the second indication field is used to indicate that the first indication field does not appear in the first MAC CE.
  • the second indication The value of the field is 0, indicating that the first indication field does not appear in the first MAC CE.
  • the first MAC CE includes a first indication field and an associated second indication field, and the second indication field is used to indicate that the first indication field appears in the first MAC CE or does not appear in the first MAC CE middle.
  • the first indication field is used to indicate the first TCI state; or, the first indication field is used to indicate the first TCI state and the control resource pool corresponding to the first TCI state index or TRP; the second indication field is used to indicate whether the associated first indication field is present in the first MAC CE.
  • the first MAC CE is shown in Table 1, and the number of TCI states corresponding to the first CORESET is 2 for description.
  • the second indication fields are C 0 and C 1
  • the first indication fields are TCI 0 and TCI 1 , wherein C 0 indicates whether the TCI 0 field appears (Present) in the first MAC CE , as an implementation manner, if the value of C 0 is 1, it indicates that the TCI 0 field appears; if the value of C 0 is 0, it indicates that the TCI 0 field does not appear; similarly, C 1 indicates whether the TCI 1 field appears.
  • the second indication field is not required to indicate whether the TCI 0 field appears in the first MAC CE, that is, it is determined that the TCI 0 field definitely appears in the first MAC CE.
  • the second indication field is not required to indicate whether the corresponding TCI1 field appears in the first MAC CE, that is, it is determined that the TCI1 field definitely appears in the first MAC CE.
  • TCI 0 may correspond to the TCI state of the first TRP
  • TCI1 may correspond to the TCI state of the second TRP. Since the control resource set pool index and TRP have a one-to-one correspondence, the first TCI state can be indicated, and the The control resource set pool index or TRP corresponding to the first TCI state realizes that in multiple TRP scenarios, beams corresponding to the terminal equipment can be configured to receive control information that different TRPs send PDCCH to the terminal equipment.
  • the beam indication information is the first DCI.
  • the first DCI includes a first code point, where the first TCI state corresponding to the first code point is indicated by the second MAC CE.
  • the first DCI is one bit, which corresponds to two first code points, which are "0" or "1" respectively.
  • each first code point corresponds to one or two first TCI states
  • one or two first TCI states corresponding to the first code point are one or two corresponding to the first code point indicated by the second MAC CE
  • the first TCI state is determined.
  • the second MAC CE includes the identifier of the first CORESET and/or the CORSET group identifier, and also includes one or more indication fields corresponding to the first code points;
  • the indication fields include: a third indication field and/or an associated fourth indication field, which will be described in detail below.
  • the second MAC CE only includes the third indication field, that is to say, the third indication field always appears in the second MAC CE, and there is no need to use the fourth indication field associated with the third indication field to indicate whether appears in the second MAC CE.
  • the second MAC CE only includes the fourth indication field.
  • the value of the fourth indication field is used to indicate that the third indication field does not appear in the second MAC CE.
  • the fourth indication The value of the field is 0, indicating that the third indication field does not appear in the second MAC CE.
  • the second MAC CE includes a third indication field and an associated fourth indication field, and the fourth indication field is used to indicate that the third indication field appears in the second MAC CE or does not appear in the second MAC CE middle.
  • the third indication field is used to indicate the first TCI state; or, the third indication field is used to indicate the first TCI state and the control resource set pool index corresponding to the first TCI state or TRP; the fourth indication field is used to indicate whether the associated third indication field is present in the second MAC CE.
  • the first DCI is a plurality of bits, so the first code points corresponding to the first DCI may be multiple. For example, if the first DCI is 3 bits, it may correspond to 8 code points, which are 000, 001, 010, 011, 100, 101, 110, and 111 respectively.
  • each code point has a corresponding indication field.
  • each code point includes two indication fields, that is, a third indication field and an associated fourth indication field as an example for description.
  • an example of the second MAC CE is shown in Table 2.
  • the CORESET ID and/or CORESET group ID of a CORESET is indicated in the MAC CE.
  • taking DCI as 3 bits, can indicate 8 code points as an example, the first first code point is 000, the corresponding fourth indication field is (C0,0) field and (C0,1) field, and the third indication field For the (TCI 0,0 ) domain and the (TCI 0,1 ) domain.
  • the second first code point is 001
  • the corresponding fourth indication fields are (C1,0) field and (C1,1) field
  • the third indication field is TCI 1,0 field and TCI 1,1 field , for other first code points, the principles are the same, and are not listed one by one in this embodiment.
  • the (C 0,0 ) field in the fourth indication field indicates whether the (TCI 0,0 ) field in the third indication field appears in the second MAC CE, for example, the value of the (C 0,0 ) field is 1, it indicates that the (TCI 0,0 ) field appears, so the value of the (TCI 0,0 ) field indicates the first TCI state; the (C 0,1 ) field in the fourth indication field indicates that in the third indication field ( Whether the TCI 0,1 ) field is present, for example, if the (C 0,1 ) field value is 1, it indicates that the (TCI 0,1 ) field is present, and thus the value of the (TCI 0,1 ) field indicates the first TCI state , if the (C 0,1 ) field value is 0, it indicates that (TCI 0,1 ) does not appear.
  • the fourth indication field is not required to indicate whether the (TCI 0,1 ) field appears in the second MAC CE, that is, it is determined that the (TCI 0,1 ) field must appear in the second MAC CE. in the second MAC CE. If the (C 0,1 ) field does not appear, that is, the fourth indication field is not required to indicate whether the corresponding (TCI 0,1 ) field is present in the second MAC CE, that is, the (TCI 0,1 ) field is determined It must be present in this second MAC CE.
  • the first code point is 000
  • the fourth indication fields corresponding to the first code point are the (C 0,0 ) field and the (C 0,1 ) field
  • the first code point is 111
  • the The fourth indication fields corresponding to the first code point are the (C 7,0 ) field and the (C 7,1 ) field, which are not listed one by one in this embodiment.
  • the first code point when the first code point is 000, the corresponding two first TCI states are respectively indicated by the value of the (TCI 0,0 ) field and the value of the (TCI 0,1 ) field in the third indication field; the first code point When it is 111, the corresponding two first TCI states are respectively indicated by the value of the (TCI 7,0 ) field and the value of the (TCI 7,1 ) field in the third indication field.
  • the maximum number of first TCI states corresponding to each code point is the maximum number of first TCI states corresponding to the first CORESET.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the CORESET group includes one or more second CORESETs.
  • the maximum number of second TCI states corresponding to each second CORESET is one, that is, the number of second TCI states corresponding to each second CORESET may be 0 or 1.
  • the CORESET included in the CORESET group is called the second CORESET
  • the TCI state corresponding to each second CORESET is called the second TCI state.
  • the CORESET group includes one or more second CORESETs, wherein the second CORESET means that the maximum number of corresponding second TCI states is one.
  • the beam indication information received by the terminal device indicates the second TCI state of a beam corresponding to a second CORESET, and when the second TCI state is one, the beam indicated by the second TCI state is received as the terminal device.
  • the receiving beam of the control information realizes the indication of the receiving beam of the terminal equipment, and improves the success rate of receiving the control information.
  • the beam indication information received by the terminal device indicates the second TCI states of the beams corresponding to the multiple second CORESETs, so that the terminal device determines, according to the second TCI states corresponding to the multiple second CORESETs, that the terminal device uses Multiple receive beams for receiving control information, wherein multiple receive beams correspond to multiple second TCI states, that is to say, each second TCI state corresponds to one receive beam, which realizes the indication of receive beams in the terminal device , which improves the success rate of receiving control information.
  • the beam indication information of the second CORESET may be a MAC CE or a DCI, and different implementations will be described below.
  • the beam indication information is the third MAC CE.
  • the third MAC CE includes at least one identifier of the second CORESET and/or the identifier of the CORESET group, that is to say, the second CORESET included in the CORESET group is in the third MAC CE.
  • the CE has the corresponding second CORESET identifier and/or the CORESET group identifier, so that the corresponding second CORESET is indicated in the third MAC CE.
  • the third MAC CE also includes a fifth indication field and/or a sixth indication field corresponding to each second CORESET, which is specifically described below:
  • the third MAC CE only includes the first indication field, that is to say, the fifth indication field always appears in the third MAC CE, and there is no need to indicate whether the fifth indication field is associated with the sixth indication field. Appears in the third MAC CE.
  • the third MAC CE only includes the sixth indication field.
  • the value of the second indication field is used to indicate that the fifth indication field does not appear in the third MAC CE.
  • the sixth indication The field takes a value of 0, indicating that the fifth indication field does not appear in the third MAC CE.
  • the third MAC CE includes a fifth indication field and an associated sixth indication field, and the sixth indication field is used to indicate that the fifth indication field appears in the third MAC CE or does not appear in the third MAC CE middle.
  • the fifth indication field is used to indicate the second TCI state; the sixth indication field is used to indicate whether the associated fifth indication field is present in the third MAC CE.
  • Table 3 shows the fifth indication domain and the sixth indication domain where the IDs of the second CORESET are CORESET ID#0 and CORESET#1, wherein the sixth indication domain is C 0 ', C 1 ', the fifth indication domain is
  • the indication fields are TCI 0 ' and TCI 1 ', wherein the C 0 ' field is used to indicate whether the TCI 0 ' field appears in the third MAC CE, for example, if the value of the C 0 ' field is 1, it indicates that the TCI 0 ' field appears , if the value of C 0 ' is 0, it indicates that the TCI 0 ' field does not appear; similarly, the C 1 ' field is used to indicate whether the TCI 1 field appears in the third MAC CE.
  • the sixth indication field is not required to indicate whether the TCI 0 ' field appears in the third MAC CE, that is, it is determined that the TCI 0 ' field definitely appears in the third MAC CE. If there is no C 1 ', that is to say, the sixth indication field is not required to indicate whether the corresponding TCI 1 ' field appears in the third MAC CE, that is, it is determined that the TCI 1 ' field definitely appears in the third MAC CE.
  • Serving cell ID Serving cell ID 2.
  • the bandwidth part identifies the BWP ID 3.
  • CORESET ID#1 5.C 0 ' TCI 0 ' 6.C 1 ' TCI 1 '
  • the identifier of the serving cell may include at least one of a serving cell identifier, a TRP identifier, and a control resource set pool index identifier (CORESETPoolIndex).
  • CORESET ID#0 and CORESET ID#1 can be replaced with CORESET group ID, or with CORESET ID#0, CORESET ID#1 and CORESET group ID.
  • the third MAC CE includes an identifier of the second CORESET, such as CORESET ID#0.
  • the third MAC CE is also applicable to another CORESET ID associated with the CORESET ID#0, such as CORESET ID#1. This association is given in other RRC signaling or MAC CE signaling.
  • CORESET ID#0 corresponds to the first TRP, and its TCI state is indicated by TCI 0 ';
  • CORESET ID#1 corresponds to the second TRP, and its TCI state is indicated by TCI 1 '.
  • the third MAC CE includes multiple second CORESET identifiers, for example, includes two second CORESET identifiers, which are CORESET ID#0 and CORESET ID#1, respectively, where CORESET ID#0 and CORESET ID#1 ID#0 corresponds to the first TRP, and its second TCI state is indicated by TCI 0 '; CORESET ID#1 corresponds to the second TRP, and its second TCI state is indicated by TCI 1 '.
  • the beam indication information is the second DCI.
  • the second DCI includes two second code points, wherein the second TCI state corresponding to each second code point is indicated by the fourth MAC CE.
  • the second DCI is one bit, corresponding to two second code points "0" and "1". Wherein, each second code point corresponds to one or two second TCI states, and the second code point corresponds to one or two second TCI states. Two TCI status is determined.
  • the fourth MAC CE includes an identifier of at least one second CORESET and/or a CORESET group identifier, and also includes an indication field corresponding to one or more second code points of each second CORESET,
  • the indication fields corresponding to each second code point include a seventh indication field and an eighth indication field, which are described in detail below:
  • the fourth MAC CE only includes the seventh indication field, that is to say, the seventh indication field always appears in the fourth MAC CE, and there is no need to indicate whether or not through the eighth indication field associated with the seventh indication field. Appears in the fourth MAC CE.
  • the fourth MAC CE only includes the sixth indication field.
  • the value of the eighth indication field is used to indicate that the seventh indication field does not appear in the fourth MAC CE.
  • the eighth indication The field takes a value of 0, indicating that the seventh indication field does not appear in the fourth MAC CE.
  • the fourth MAC CE includes a seventh indication field and an associated eighth indication field, and the eighth indication field is used to indicate that the seventh indication field appears in the third MAC CE or does not appear in the fourth MAC CE middle.
  • the number of seventh indication fields is one or more, and each seventh indication field is used to indicate the second TCI state; or, each seventh indication field is used to indicate the second TCI state, and the control resource set pool index or TRP corresponding to the second TCI state.
  • the eighth indication field is used to indicate whether the corresponding at least one seventh indication field appears in the fourth MAC CE.
  • the number of the seventh indication field is the same as the number of the second CORESET in the CORESET group.
  • the second DCI is a plurality of bits, so the second code points corresponding to the second DCI may be multiple.
  • the second DCI is 3 bits, it may correspond to 8 code points, which are 000, 001, 010, 011, 100, 101, 110, and 111 respectively.
  • each second code point includes two indication fields, namely the seventh indication field and the eighth indication field.
  • the seventh indication field is 2
  • the seventh indication field corresponds to the (TCI i, 0 ') field and the (TCI i, 1 ') field respectively
  • the value of i is 0 to 7, respectively indicating that the two CORESETs correspond to , that is, the TCI state corresponding to CORESET ID#0 and CORESET ID#1.
  • the DCI is 3 bits, it can indicate 8 code points
  • the second code point is 000
  • the corresponding eighth indication fields are the (C 0,0 ') field and the (C 0,1 ') field
  • the seventh indication field corresponds to (TCI 0,0 ') domain and (TCI 0,1 ') domain.
  • the second code point is 111
  • the corresponding eighth indication fields are the (C 1,0 ') field and the (C 1,1 ') field
  • the seventh indication fields are the (TCI 1,0 ') field and (TCI 1,1 ') domain.
  • the principles are the same, and are not listed one by one in this embodiment.
  • the (C 0,0 ') field in the eighth indication field indicates whether the (TCI 0,0 ') field in the seventh indication field appears in the fourth MAC CE, for example, the (C 0,0 ') field of the If the value is 1, it indicates that the (TCI 0,0 ') field appears, so the value of the (TCI 0,0 ') field indicates the second TCI state corresponding to CORESET ID#0; the value of the (C 0,0 ') field If it is 0, the value of the (TCI 0,0 ') field does not appear, that is, does not indicate the second TCI state corresponding to CORESET ID #0.
  • the (C 0,1 ') field in the eighth indication field indicates whether the (TCI 0,1 ') field in the seventh indication field appears. For example, if the (C 0,1 ') field value is 1, it indicates (TCI 0 , 1 ') appears, so the value of the (TCI 0,1 ') field indicates the second TCI state corresponding to CORESET ID#1. If there is no (C 0,0 ') field, that is, the eighth indication field is not required to indicate whether the (TCI 0,1 ') field appears in the fourth MAC CE, that is, the (TCI 0,1 ') field is determined It must be present in the fourth MAC CE.
  • the eighth indication field is not required to indicate whether the corresponding (TCI 0,1 ') field appears in the fourth MAC CE, that is, it is determined that (TCI 0,1 ') ) field must be present in the fourth MAC CE.
  • the second code point is 000
  • the eighth indication fields corresponding to the second code point are (C 0,0 ') and (C 0,1 ');
  • the second code point is 111
  • the The eighth indication fields corresponding to the second code point are (C 7,0 ') and (C 7,1 '), which are not listed one by one in this embodiment.
  • the second code point is 000
  • the corresponding second TCI state is indicated by the value of the (TCI 0,0 ') field and the value of the (TCI 0,1 ') field in the seventh indication field
  • the second code point is 111
  • the corresponding second TCI state is indicated by the value of the (TCI 7,0 ') field and the value of the (TCI 7,1 ') field in the seventh indication field, respectively.
  • the indicated TCI states of the beams corresponding to each CORESET meet the requirements of different scenarios, and it is determined that the terminal equipment uses each CORESET for transmission when receiving PDCCH
  • the corresponding receiving beam during signaling realizes beam indication, and then uses the receiving beam to receive control information, wherein the control information can be DCI signaling sent by PDCCH on each CORESET in the CORESET group, so as to improve the success rate of control information reception.
  • FIG. 2 is a schematic flowchart of another beam indication method provided in this embodiment, indicating how to decode the received control information. As shown in FIG. 2 , the method includes the following steps:
  • Step 201 Receive beam indication information of a control resource set CORESET group, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate the TCI state of the beam corresponding to each CORESET in the CORESET group.
  • Step 202 Receive control information according to the beam indication information.
  • step 201 and step 202 reference may be made to the explanations in any of the above-mentioned embodiments, and the principles are the same, which will not be repeated here.
  • the terminal device determines the decoding method to be adopted according to the number of TCI states indicated in the beam indication information. If the TCI states indicated by the beam indication information are at least two, step 203 is performed. , if the TCI state indicated by the beam indication information is one, step 204 is executed.
  • Step 203 Combine and decode the control information received by the beams corresponding to at least two TCI states indicated by the beam indication information.
  • the control information received by the corresponding beams corresponding to the at least two TCI states indicated by the beam indication information is combined and decoded, instead of receiving the corresponding beams for each TCI state.
  • the control information is decoded separately.
  • the decoding error is reduced and the decoding reliability is improved by combining decoding.
  • Step 204 Independently decode the control information received by the beam corresponding to a TCI state indicated by the beam indication information.
  • the control information received by the corresponding beam corresponding to one TCI state indicated by the beam indication information is independently decoded.
  • the terminal device uses the beam indication information of the received CORESET group to use the TCI state of the beam corresponding to each CORESET indicated by the beam indication information, wherein the TCI state indicates that the terminal uses each CORESET when receiving the PDCCH.
  • the corresponding receiving beam is used to transmit the signaling, and then the receiving beam is used to receive the control information, wherein the control information may be the DCI signaling sent by the PDCCH on each CORESET in the CORESET group, so as to improve the success rate of receiving the control information.
  • the indication of the decoding mode is implemented, which meets the decoding requirements in different scenarios.
  • FIG. 3 is yet another beam indication method provided by an embodiment of the present application, and the method is applied to a network device.
  • the method includes the following steps:
  • Step 301 Send beam indication information of the CORESET group to the terminal device, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate the TCI state of the beam corresponding to each CORESET in the CORESET group.
  • the beam indication method in the embodiment of the present disclosure can be applied to any network device, and the network device is deployed in a wireless access network to provide a wireless access function for terminal devices.
  • 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
  • Step 302 Send control information to the terminal device according to the TCI states of the beams corresponding to each CORESET in the CORESET group.
  • the CORESET group is a CORESET group used for PDCCH transmission of Multi-TRP.
  • the number of CORESETs included in the CORESET group may be one or more.
  • the network equipment sends the beam indication information of the CORESET group to the terminal equipment, so that the terminal equipment uses the received beam indication information of the CORESET group and uses the TCI state of the beam corresponding to each CORESET indicated by the beam indication information to determine that the terminal equipment is receiving PDCCH using
  • the corresponding receiving beam realizes the beam indication, and then uses the receiving beam to receive control information, wherein the control information can be the DCI signaling sent by the PDCCH on each CORESET in the CORESET group, which improves the reliability of control information reception. Success rate.
  • the number of CORESETs included in the CORESET group may be one or more.
  • the number of TCI states corresponding to different CORESETs is also different. The following examples are used to address different scenarios. The CORESET group below and the TCI status corresponding to each CORESET are explained.
  • the CORESET group includes one first CORESET, where the maximum number of first TCI states corresponding to the first CORESET is greater than or equal to two.
  • the CORESET group includes a first CORESET, so the beam indication information received by the terminal device is the beam indication information of the first CORESET, so the beam indication information indicates the first TCI state of the beam corresponding to the first CORESET,
  • the maximum number of first TCI states of the beam corresponding to the first CORESET is greater than or equal to two, that is, the receiving beam determined by the terminal is the beam indicated by one or more first TCI states of the beam corresponding to the first CORESET , that is to say, the terminal device uses one or more receiving beams indicated by the first TCI state to receive control information, thereby realizing the determination of the receiving beams in the terminal device and improving the success rate of receiving control information.
  • the index of the control resource set pool corresponding to each first TCI state is different, or the TRP corresponding to each first TCI state is different, wherein the index of the control resource set pool corresponds to one TRP, that is, different control resources
  • the pool index corresponds to different TRPs, thereby realizing that each first TCI state corresponding to one CORESET corresponds to different TRPs. Control information sent by different TRPs.
  • the first CORESET and the first TCI state are for the convenience of distinguishing from the CORESET and TCI in other subsequent embodiments, and do not have priorities.
  • the beam indication information of the first CORESET may be a MAC CE or a DCI, and different implementations will be described below.
  • the beam indication information is the first MAC CE.
  • the first MAC CE includes the identity of the first CORESET and/or the CORESET group identity, for example, the identity of the first CORESET is CORESET#1, or CORESET#2, or CORESET#3; for example, the CORESET group identity is CORESET group# 1.
  • CORESET group #2 which is not limited in this embodiment.
  • the first MAC CE also includes a first indication field and/or an associated second indication field, which will be described in detail below.
  • the first MAC CE only includes the first indication field, that is to say, the first indication field always appears in the first MAC CE, and there is no need to indicate whether the first indication field is associated with the second indication field. appears in the first MAC CE.
  • the first MAC CE only includes the second indication field.
  • the value of the second indication field is used to indicate that the first indication field does not appear in the first MAC CE.
  • the second indication The value of the field is 0, indicating that the first indication field does not appear in the first MAC CE.
  • the first MAC CE includes a first indication field and an associated second indication field, and the second indication field is used to indicate that the first indication field appears in the first MAC CE or does not appear in the first MAC CE middle.
  • the first indication field is used to indicate the first TCI state; or, the first indication field is used to indicate the first TCI state and the control resource pool corresponding to the first TCI state index or TRP; the second indication field is used to indicate whether the associated first indication field is present in the first MAC CE.
  • the first MAC CE is shown in Table 1, and the number of TCI states corresponding to the first CORESET is 2 for description.
  • the second indication fields are C 0 and C 1
  • the first indication fields are TCI 0 and TCI 1 , wherein C 0 indicates whether the TCI 0 field appears (Present) in the first MAC CE , as an implementation manner, if the value of C 0 is 1, it indicates that the TCI 0 field appears; if the value of C 0 is 0, it indicates that the TCI 0 field does not appear; similarly, C 1 indicates whether the TCI 1 field appears.
  • the second indication field is not required to indicate whether the TCI 0 field appears in the first MAC CE, that is, it is determined that the TCI 0 field definitely appears in the first MAC CE.
  • the second indication field is not required to indicate whether the corresponding TCI1 field appears in the first MAC CE, that is, it is determined that the TCI1 field definitely appears in the first MAC CE.
  • TCI0 may correspond to the TCI state of the first TRP
  • TCI1 may correspond to the TCI state of the second TRP. Since the control resource set pool index and TRP have a one-to-one correspondence, the control resource set corresponding to the first TCI state is indicated.
  • the pool index or TRP means that in multiple TRP scenarios, the beams corresponding to the terminal equipment can be configured to receive the control information that different TRPs send the PDCCH to the terminal equipment.
  • the beam indication information is the first DCI.
  • the first DCI includes a first code point, where the first TCI state corresponding to the first code point is indicated by the second MAC CE.
  • the first DCI is one bit, which corresponds to two first code points, which are "0" or "1" respectively.
  • each first code point corresponds to one or two first TCI states
  • one or two first TCI states corresponding to the first code point are one or two corresponding to the first code point indicated by the second MAC CE
  • the first TCI state is determined.
  • the second MAC CE includes the identifier of the first CORESET and/or the CORSET group identifier, and also includes one or more indication fields corresponding to the first code points;
  • the indication fields include: a third indication field and/or an associated fourth indication field, which will be described in detail below.
  • the second MAC CE only includes the third indication field, that is to say, the third indication field always appears in the second MAC CE, and there is no need to use the fourth indication field associated with the third indication field to indicate whether appears in the second MAC CE.
  • the second MAC CE only includes the fourth indication field.
  • the value of the fourth indication field is used to indicate that the third indication field does not appear in the second MAC CE.
  • the fourth indication The value of the field is 0, indicating that the third indication field does not appear in the second MAC CE.
  • the second MAC CE includes a third indication field and an associated fourth indication field, and the fourth indication field is used to indicate that the third indication field appears in the second MAC CE or does not appear in the second MAC CE middle.
  • the third indication field is used to indicate the first TCI state; or, the third indication field is used to indicate the first TCI state and the control resource set pool index corresponding to the first TCI state or TRP; the fourth indication field is used to indicate whether the associated third indication field is present in the second MAC CE.
  • the first DCI is a plurality of bits, so the first code points corresponding to the first DCI may be multiple. For example, if the first DCI is 3 bits, it may correspond to 8 code points, which are 000, 001, 010, 011, 100, 101, 110, and 111 respectively.
  • each code point has a corresponding indication field.
  • each code point includes two indication fields, that is, a third indication field and an associated fourth indication field as an example for description.
  • an example of the second MAC CE is shown in Table 2.
  • the CORESET ID and/or CORESET group ID of a CORESET is indicated in the MAC CE.
  • taking DCI as 3 bits, can indicate 8 code points as an example, the first first code point is 000, the corresponding fourth indication field is (C0,0) field and (C0,1) field, and the third indication field For the (TCI 0,0 ) domain and the (TCI 0,1 ) domain.
  • the second first code point is 001
  • the corresponding fourth indication fields are (C1,0) field and (C1,1) field
  • the third indication field is (TCI 1,0 ) field and (TCI 1 ) ,1 ) domain, for other first code points, the principles are the same, and are not listed one by one in this embodiment.
  • the (C 0,0 ) field in the fourth indication field indicates whether the (TCI 0,0 ) field in the third indication field appears in the second MAC CE, for example, the value of the (C 0,0 ) field is 1, it indicates that the (TCI 0,0 ) field appears, so the value of the (TCI 0,0 ) field indicates the first TCI state; the (C 0,1 ) field in the fourth indication field indicates that in the third indication field ( Whether the TCI 0,1 ) field is present, for example, if the (C 0,1 ) field value is 1, it indicates that the (TCI 0,1 ) field is present, and thus the value of the (TCI 0,1 ) field indicates the first TCI state , if the value of the (C 0,1 ) field is 0, it indicates that the (TCI 0,1 ) field does not appear.
  • the fourth indication field is not required to indicate whether the (TCI 0,1 ) field appears in the second MAC CE, that is, it is determined that the (TCI 0,1 ) field must appear in the second MAC CE. in the second MAC CE. If the (C 0,1 ) field does not appear, that is to say, the fourth indication field is not required to indicate whether the corresponding (TCI 0,1 ) field appears in the second MAC CE, that is, the (TCI 0,1 ) field is determined It must be present in this second MAC CE.
  • the first code point is 000
  • the fourth indication fields corresponding to the first code point are (C 0,0 ) and (C 0,1 );
  • the first code point is 111
  • the first The fourth indication fields corresponding to the code points are (C 7,0 ) and (C 7,1 ), which are not listed one by one in this embodiment.
  • the first code point is 000
  • the corresponding two first TCI states are respectively indicated by the value of the (TCI 0,0 ) field and the value of the (TCI 0,1 ) field in the third indication field
  • the first code point is 111
  • the corresponding two first TCI states are indicated by the value of the (TCI 7,0 ) field and the value of the (TCI 7,1 ) field in the third indication field, respectively.
  • the maximum number of first TCI states corresponding to each code point is the maximum number of first TCI states corresponding to the first CORESET.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the CORESET group includes one or more second CORESETs.
  • the maximum number of second TCI states corresponding to each second CORESET is one, that is, the number of second TCI states corresponding to each second CORESET may be 0 or 1.
  • the CORESET included in the CORESET group is called the second CORESET
  • the TCI state corresponding to each second CORESET is called the second TCI state.
  • the CORESET group includes one or more second CORESETs, wherein the second CORESET means that the maximum number of corresponding second TCI states is one.
  • the beam indication information received by the terminal device indicates a second TCI state of a beam corresponding to a second CORESET, and when there is one second TCI state, the beam indicated by the second TCI state is received as the terminal device.
  • the receiving beam of the control information realizes the indication of the receiving beam of the terminal equipment, and improves the success rate of receiving the control information.
  • the beam indication information received by the terminal device indicates the second TCI states of the beams corresponding to the multiple second CORESETs, so that the terminal device determines, according to the second TCI states corresponding to the multiple second CORESETs, that the terminal device uses The receiving beam for receiving control information, wherein the receiving beam and the second TCI state are corresponding, that is to say, each second TCI state corresponds to a receiving beam, which realizes the indication of the receiving beam in the terminal device and improves the reception of control information. success rate.
  • the beam indication information of the second CORESET may be a MAC CE or a DCI, and different implementations will be described below.
  • the beam indication information is the third MAC CE.
  • the third MAC CE includes at least one identifier of the second CORESET and/or the identifier of the CORESET group, that is to say, the second CORESET included in the CORESET group is in the third MAC CE.
  • the CE has the corresponding second CORESET identifier and/or the CORESET group identifier, so that the corresponding second CORESET is indicated in the third MAC CE.
  • the third MAC CE also includes a fifth indication field and/or a sixth indication field corresponding to each second CORESET, which is specifically described below:
  • the third MAC CE only includes the first indication field, that is to say, the fifth indication field always appears in the third MAC CE, and there is no need to indicate whether the fifth indication field is associated with the sixth indication field. Appears in the third MAC CE.
  • the third MAC CE only includes the sixth indication field.
  • the value of the second indication field is used to indicate that the fifth indication field does not appear in the third MAC CE.
  • the sixth indication The field takes a value of 0, indicating that the fifth indication field does not appear in the third MAC CE.
  • the third MAC CE includes a fifth indication field and an associated sixth indication field, and the sixth indication field is used to indicate that the fifth indication field appears in the third MAC CE or does not appear in the third MAC CE middle.
  • the fifth indication field is used to indicate the second TCI state; or, the fifth indication field is used to indicate the second TCI state and the control resource pool corresponding to the second TCI state index or TRP; the sixth indication field is used to indicate whether the associated fifth indication field is present in the third MAC CE.
  • Table 3 shows an example of the third MAC CE.
  • the description is given by taking an example that the CORESET group includes two second CORESETs.
  • Table 3 shows the fifth indication domain and the sixth indication domain where the IDs of the second CORESET are CORESET ID#0 and CORESET#1, wherein the sixth indication domain is C 0 ', C 1 ', the fifth indication domain is
  • the indicating fields are TCI 0 ' and TCI 1 ', wherein the C 0 ' field is used to indicate whether the TCI 0 ' field is present, for example, if the value of the C 0 ' field is 1, it indicates that the TCI 0 ' field is present, and if the value of the C 0 ' field is present If it is 0, it indicates that the TCI 0 ' field does not appear; similarly, the C 1 ' field is used to indicate whether the TCI 1 field appears.
  • the sixth indication field is not required to indicate whether the TCI 0 ' field appears in the third MAC CE, that is, it is determined that the TCI 0 ' field definitely appears in the third MAC CE. If there is no C 1 ', that is to say, the sixth indication field is not required to indicate whether the corresponding TCI 1 ' field appears in the third MAC CE, that is, it is determined that the TCI 1 ' field definitely appears in the third MAC CE.
  • the identifier of the serving cell may include at least one of the serving cell identifier, the TRP identifier, and the control resource set pool index identifier (CORESETPoolIndex).
  • CORESET ID#0 and CORESET ID#1 can be replaced with CORESET group ID, or with CORESET ID#0, CORESET ID#1 and CORESET group ID.
  • the third MAC CE includes an identifier of the second CORESET, such as CORESET ID#0.
  • the third MAC CE is also applicable to another CORESET ID associated with the CORESET ID#0, such as CORESET ID#1. This association is given in other RRC signaling or MAC CE signaling.
  • CORESET ID#0 corresponds to the first TRP, and its TCI state is indicated by TCI 0 ';
  • CORESET ID#1 corresponds to the second TRP, and its TCI state is indicated by TCI 1 '.
  • the third MAC CE includes multiple second CORESET identifiers, for example, includes two second CORESET identifiers, which are CORESET ID#0 and CORESET ID#1, respectively, where CORESET ID#0 and CORESET ID#1 ID#0 corresponds to the first TRP, and its second TCI state is indicated by TCI 0 '; CORESET ID#1 corresponds to the second TRP, and its second TCI state is indicated by TCI 1 '.
  • the beam indication information is the second DCI.
  • the second DCI includes two second code points, wherein the second TCI state corresponding to each second code point is indicated by the fourth MAC CE.
  • the second DCI is one bit, corresponding to two second code points "0" and "1". Wherein, each second code point corresponds to one or two second TCI states, and the second code point corresponds to one or two second TCI states. Two TCI status is determined.
  • the fourth MAC CE includes an identifier of at least one second CORESET and/or a CORESET group identifier, and also includes an indication field corresponding to one or more second code points of each second CORESET,
  • the indication fields corresponding to each second code point include a seventh indication field and an eighth indication field, which are described in detail below:
  • the fourth MAC CE only includes the seventh indication field, that is to say, the seventh indication field always appears in the fourth MAC CE, and there is no need to indicate whether or not through the eighth indication field associated with the seventh indication field. Appears in the fourth MAC CE.
  • the fourth MAC CE only includes the sixth indication field.
  • the value of the eighth indication field is used to indicate that the seventh indication field does not appear in the fourth MAC CE.
  • the eighth indication The field takes a value of 0, indicating that the seventh indication field does not appear in the fourth MAC CE.
  • the fourth MAC CE includes a seventh indication field and an associated eighth indication field, and the eighth indication field is used to indicate that the seventh indication field appears in the third MAC CE or does not appear in the fourth MAC CE middle.
  • the number of seventh indication fields is one or more, and each seventh indication field is used to indicate the second TCI state; or, each seventh indication field is used to indicate the second TCI state, and the control resource set pool index or TRP corresponding to the second TCI state.
  • the eighth indication field is used to indicate whether the corresponding at least one seventh indication field appears in the fourth MAC CE.
  • the number of the seventh indication field is the same as the number of the second CORESET in the CORESET group.
  • the second DCI is a plurality of bits, so the second code points corresponding to the second DCI may be multiple. For example, if the second DCI is 3 bits, it may correspond to 8 code points, which are 000, 001, 010, 011, 100, 101, 110, and 111 respectively.
  • each second code point includes two indication fields, that is, a seventh indication field and an eighth indication field.
  • the seventh indication field is 2
  • the seventh indication field corresponds to the (TCI i, 0 ') field and the (TCI i, 1 ') field respectively
  • the value of i is 0 to 7, respectively indicating that the two CORESETs correspond to , that is, the TCI state corresponding to CORESET ID#0 and CORESET ID#1.
  • the DCI is 3 bits, it can indicate 8 code points
  • the second code point is 000
  • the corresponding eighth indication fields are the (C 0,0 ') field and the (C 0,1 ') field
  • the seventh indication field corresponds to (TCI 0,0 ') domain and (TCI 0,1 ') domain.
  • the second code point is 111
  • the corresponding eighth indication fields are the (C 1,0 ') field and the (C 1,1 ') field
  • the seventh indication fields are the (TCI 1,0 ') field and (TCI 1,1 ') domain.
  • the principles are the same, and are not listed one by one in this embodiment.
  • the (C 0,0 ') field in the eighth indication field indicates whether the (TCI 0,0 ') field in the seventh indication field appears in the fourth MAC CE, for example, the (C 0,0 ') field of the If the value is 1, it indicates that the (TCI 0,0 ') field appears, so the value of the (TCI 0,0 ') field indicates the second TCI state corresponding to CORESET ID#0; the value of the (C 0,0 ') field If it is 0, the value of the (TCI 0,0 ') field does not appear, that is, does not indicate the second TCI state corresponding to CORESET ID #0.
  • the (C 0,1 ') field in the eighth indication field indicates whether the (TCI 0,1 ') field in the seventh indication field appears. For example, if the (C 0,1 ') field value is 1, it indicates (TCI 0 , 1 ') appears, so the value of the (TCI 0,1 ') field indicates the second TCI state corresponding to CORESET ID#1. If there is no (C 0,0 ') field, that is, the eighth indication field is not required to indicate whether the (TCI 0,1 ') field appears in the fourth MAC CE, that is, the (TCI 0,1 ') field is determined It must be present in the fourth MAC CE.
  • the eighth indication field is not required to indicate whether the corresponding (TCI 0,1 ') field appears in the fourth MAC CE, that is, it is determined that (TCI 0,1 ') ) field must be present in the fourth MAC CE.
  • the second code point is 000
  • the eighth indication fields corresponding to the second code point are (C 0,0 ') and (C 0,1 ');
  • the second code point is 111
  • the The eighth indication fields corresponding to the second code point are (C 7,0 ') and (C 7,1 '), which are not listed one by one in this embodiment.
  • the second code point is 000
  • the corresponding second TCI state is indicated by the value of the (TCI 0,0 ') field and the value of the (TCI 0,1 ') field in the seventh indication field
  • the second code point is 111
  • the corresponding second TCI state is indicated by the value of the (TCI 7,0 ') field and the value of the (TCI 7,1 ') field in the seventh indication field, respectively.
  • the corresponding receiving beam is determined when the terminal equipment receives the PDCCH and transmits the signaling using each CORESET, The beam indication is realized, and the receiving beam is used to receive control information, wherein the control information can be DCI signaling sent by PDCCH on each CORESET in the CORESET group, thereby improving the success rate of control information receiving.
  • 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. 4 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 pointing device 110 includes: a first receiving module 41 and a second receiving module 42 .
  • the first receiving module 41 is configured to receive beam indication information of a control resource set CORESET group, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate each CORESET group in the CORESET group.
  • CORESET corresponds to the TCI status of the beam;
  • the second receiving module 42 is configured to receive control information according to the beam indication information.
  • the CORESET group includes a first CORESET
  • the maximum number of the first TCI states corresponding to the first CORESET is greater than or equal to two;
  • control resource set pool indices corresponding to the first TCI states are different, or the TRPs corresponding to the first TCI states are different.
  • the beam indication information is the first MAC CE
  • the first MAC CE includes the identity of the first CORESET and/or the CORESET group identity, and also includes a first indication field and/or an associated second indication field;
  • the first indication field is used to indicate the first TCI state; or, the first indication field is used to indicate the first TCI state and a control resource set pool index corresponding to the first TCI state or TRP;
  • the second indication field is used to indicate whether the associated first indication field appears in the first MAC CE.
  • the beam indication information is the first DCI; the first DCI includes a first code point; wherein, the first TCI state corresponding to the first code point is indicated by the second MAC CE.
  • the second MAC CE includes the identifier of the first CORESET and/or the CORESET group identifier, and also includes an indication field corresponding to one or more first code points; each of the first code points corresponds to The indication field includes: a third indication field and/or an associated fourth indication field; wherein, the third indication field is used to indicate the first TCI state; or, the third indication field is used to indicate the The first TCI state, and the control resource set pool index or TRP corresponding to the first TCI state; the fourth indication field is used to indicate whether the associated third indication field appears in the second MAC CE .
  • the CORESET group includes one or more second CORESETs
  • the maximum number of second TCI states corresponding to each of the second CORESETs is one.
  • the beam indication information is a third MAC CE
  • the third MAC CE includes at least one identifier of the second CORESET and/or the CORESET group identifier, and also includes a fifth indication field and/or a sixth indication field corresponding to each of the second CORESETs;
  • the fifth indication field is used to indicate the second TCI state; or, the fifth indication field is used to indicate the second TCI state and the control resource set pool index corresponding to the second TCI state or TRP;
  • the sixth indication field is used to indicate whether the associated fifth indication field appears in the third MAC CE.
  • the beam indication information is the second DCI
  • the second DCI includes a second code point; wherein, the second TCI state corresponding to the second code point is indicated by the fourth MAC CE.
  • the fourth MAC CE includes at least one identifier of the second CORESET and/or the CORESET group identifier, and also includes one or more of the second code points corresponding to each of the second CORESETs. indicating field;
  • the indication fields corresponding to each of the second code points include a seventh indication field and an eighth indication field;
  • the number of the seventh indication fields is one or more, and each seventh indication field is used to indicate the second TCI state; or, each seventh indication field is used to indicate the first TCI state.
  • the eighth indication field is used to indicate whether the corresponding at least one seventh indication field appears in the fourth MAC CE.
  • the TCI states indicated by the beam indication information are at least two; the apparatus further includes:
  • the first decoding module is configured to combine and decode the control information received by the beams corresponding to at least two TCI states indicated by the beam indication information.
  • the TCI state indicated by the beam indication information is one; the device further includes:
  • the second decoding module is configured to independently decode the control information received by the beam corresponding to a TCI state indicated by the beam indication information.
  • the beam indication information of the CORESET group of the control resource set is received, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate the TCI of the beam corresponding to each CORESET in the CORESET group Status, receive control information according to beam indication information.
  • the receiving beam used by the terminal equipment when receiving the PDCCH and using each CORESET to transmit signaling is determined, thereby realizing beam indication.
  • 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 beam indication methods provided by the above-mentioned embodiments, it is 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. 5 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 first sending module 51 and a second sending module 52 of sending modules.
  • the first sending module 51 is used to send the beam indication information of the CORESET group to the terminal device, wherein the number of CORESETs in the CORESET group is one or more, and the beam indication information is used to indicate the TCI state of each CORESET corresponding beam in the CORESET group .
  • the second sending module 52 is configured to send control information to the terminal device according to the TCI states of the beams corresponding to each CORESET in the CORESET group.
  • the CORESET group includes a first CORESET
  • the maximum number of the first TCI states corresponding to the first CORESET is greater than or equal to two;
  • control resource set pool indices corresponding to the first TCI states are different, or the TRPs corresponding to the first TCI states are different.
  • the beam indication information is the first MAC CE
  • the first MAC CE includes the identity of the first CORESET and/or the CORESET group identity, and also includes a first indication field and/or an associated second indication field;
  • the first indication field is used to indicate the first TCI state; or, the first indication field is used to indicate the first TCI state and a control resource set pool index corresponding to the first TCI state or TRP; the second indication field is used to indicate whether the associated first indication field appears in the first MAC CE.
  • the beam indication information is the first DCI
  • the first DCI includes a first code point; wherein, the first TCI state corresponding to the first code point is indicated by the second MAC CE.
  • the second MAC CE includes the identifier of the first CORESET and/or the CORESET group identifier, and also includes an indication field corresponding to one or more first code points;
  • the indication fields corresponding to each of the first code points include: a third indication field and/or an associated fourth indication field;
  • the third indication field is used to indicate the first TCI state; or, the third indication field is used to indicate the first TCI state and the control resource set pool index corresponding to the first TCI state or TRP;
  • the fourth indication field is used to indicate whether the associated third indication field appears in the second MAC CE.
  • the CORESET group includes one or more second CORESETs
  • the maximum number of second TCI states corresponding to each of the second CORESETs is one.
  • the beam indication information is a third MAC CE
  • the third MAC CE includes at least one identifier of the second CORESET and/or the CORESET group identifier, and also includes a fifth indication field and/or a sixth indication field corresponding to each of the second CORESETs;
  • the fifth indication field is used to indicate the second TCI state; or, the fifth indication field is used to indicate the second TCI state and the control resource set pool index corresponding to the second TCI state or TRP;
  • the sixth indication field is used to indicate whether the associated fifth indication field appears in the third MAC CE.
  • the beam indication information is the second DCI
  • the second DCI includes a second code point; wherein, the second TCI state corresponding to the second code point is indicated by the fourth MAC CE.
  • the fourth MAC CE includes at least one identifier of the second CORESET and/or the CORESET group identifier, and also includes one or more of the second code points corresponding to each of the second CORESETs. indicating field;
  • the indication fields corresponding to each of the second code points include a seventh indication field and an eighth indication field;
  • the number of the seventh indication fields is one or more, and each seventh indication field is used to indicate the second TCI state; or, each seventh indication field is used to indicate the first TCI state.
  • the eighth indication field is used to indicate whether the corresponding at least one seventh indication field appears in the second MAC CE.
  • the network device sends the beam indication information of the CORESET group to the terminal equipment, so that the terminal equipment uses the beam indication information of the CORESET group received to use the TCI of the beam corresponding to each CORESET indicated by the beam indication information
  • the state determines the corresponding receiving beam when the terminal equipment receives the PDCCH using each CORESET to transmit signaling, realizes the beam indication, and then uses the receiving beam to receive control information, where the control information can be sent by the PDCCH on each CORESET in the CORESET group.
  • DCI signaling improves the success rate of control information reception.
  • the present disclosure also proposes a communication device.
  • the communication device includes a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being executed by the processor, wherein the processor executes the foregoing method when the executable program is executed.
  • the communication device may be the aforementioned network device or terminal device.
  • the processor may include various types of storage media, which are non-transitory computer storage media that can continue to memorize and store information on the communication device after the power is turned off.
  • the communication device includes a base station or a terminal.
  • the processor may be connected to the memory through a bus or the like, for reading the executable program stored on the memory, for example, at least one of FIG. 1 to FIG. 3 .
  • FIG. 6 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 beam indication information is used to indicate the TCI state of the beam corresponding to each CORESET in the CORESET group;
  • a control information transceiver 900 is received for receiving and transmitting data under the control of the processor 910 .
  • 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.
  • FIG. 7 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 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 present disclosure also proposes a computer storage medium.
  • the computer storage medium provided by the embodiment 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, at least one of FIG. 1 to FIG. 3 .
  • the present disclosure also proposes a computer program product.
  • the aforementioned method can be implemented, for example, as shown in at least one of FIG. 1 to FIG. 3 .

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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：接收控制资源集CORESET组的波束指示信息，其中，CORESET组内CORESET的个数为一个或多个，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态，根据波束指示信息，接收控制信息。本公开中，基于接收到的波束指示信息，指示的各CORESET对应波束的TCI状态，确定终端设备在接收PDCCH利用各CORESET传输信令时采用的接收波束，实现了终端设备中接收波束的指示。

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。
当网络设备，例如，基站有多个发送接收点((Transmission and Reception Point，TRP)时，基站可以使用多个TRP为终端提供服务，包括使用多个TRP为终端发送物理下行控制信道(physical downlink control channel，PDCCH)。当基站使用多个TRP为终端发送PDCCH时，不同的TRP使用不同的波束发送。为了实现Multi-TRP的PDCCH发送，针对使用一个控制资源集合(Control Resource Set，CORESET)或者两个CORESET的情况，如何配置用于Multi-TRP PDCCH发送的CORESET的接收波束，是需要解决的问题。
发明内容
本公开提出的一种波束指示方法、装置及通信设备，用于解决终端如何确定用于接收Multi-TRP的PDCCH利用各CORESET传输信令时采用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：
接收控制资源集CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
根据所述波束指示信息，接收控制信息。
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：
向终端设备发送CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
根据所述CORESET组内各CORESET对应波束的TCI状态，向所述终端设备发送控制信息。
本公开另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：
第一接收模块，用于接收控制资源集CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
第二接收模块，用于根据所述波束指示信息，接收控制信息。
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：
第一发送模块，用于向终端设备发送CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
第二发送模块，用于根据所述CORESET组内各CORESET对应波束的TCI状态，向所述终端设备发送控制信息。
本公开另一方面实施例提出的一种通信设备，包括：收发器；存储器；处理器，分别与所述收发器及所述存储器连接，配置为通过执行所述存储器上的计算机可执行指令，控制所述收发器的无线信号收发，并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或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如下的有益效果：
接收控制资源集CORESET组的波束指示信息，其中，CORESET组内CORESET的个数为一个或多个，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态，根据波束指示信息，接收控制信息。本公开中，基于接收到的波束指示信息，指示的各CORESET对应波束的TCI状态，确定终端设备在接收PDCCH利用各CORESET传输信令时采用的接收波束，实现了波束的指示。
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为本公开实施例所提供的一种波束指示方法的流程示意图；
图2为本公开实施例所提供的另一种波束指示方法的流程示意图
图3为本公开实施例所提供的另一种波束指示方法的流程示意图；
图4为本公开实施例所提供的一种波束指示装置的结构示意图；
图5为本公开实施例所提供的另一种波束指示装置的结构示意图；
图6为本公开实施例所提供的一种终端设备的框图；
图7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”也旨在包括复数形式，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：
发送接收点((Transmission and Reception Point，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。
本公开实施例中，网络设备具有对应的多个TRP，网络设备可以使用多个TRP为终端设备提供服务，包含使用多个TRP为终端设备发送PDCCH，在使用多个TRP，即Multi-TRP进行PDCCH传输时，用于进行Multi-TRP的PDCCH传输具有对应的一个或多个CORESET，而各个CORESET对应的接收波束的传输配置指示(Transmission Configuration Indicator，TCI)状态的数量不同，可以为一个或多个，其中，TCI状态用于指示波束对应的参考信号资源标识，从而，终端设备在接收基于CORESET组传输的信令时，需要确定对应的接收波束，因此，本实施例提供了一种波束指示方法，基于接收到的CORESET组的波束指示信息，其中，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态，TCI状态指示了终端设备接收PDCCH利用各CORESET传输信令时采用的接收波束，实现了波束的指示。
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，接收控制资源集CORESET组的波束指示信息，其中，CORESET组内CORESET的个数为一个或多个，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态。
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。
步骤102，根据波束指示信息，接收控制信息。
本实施例中，CORESET组为用于Multi-TRP的PDCCH传输的CORESET组。其中，CORESET组中包含的CORESET的数量可以一个或多个。终端设备通过接收到的CORESET组的波束指示信息，利用波束指示信息指示的各个CORESET对应的波束的TCI状态，其中，TCI状态指示了终端在接收PDCCH利用各CORESET传输信令时对应的接收波束，实现了波束的指示，进而利用该接收波束接收控制信息，其中，控制信息可以为CORESET组内各CORESET上PDCCH发送的DCI信令，提高控制信息接收的成功率。
本公开实施例中，CORESET组中包含的CORESET的个数可以为一个或多个，同时，包含多个CORESET数量时，不同CORESET对应的TCI状态的数量也不同，下面分别利用实施例，针对不同场景下的CORESET组，以及各CORESET对应的TCI状态进行说明。
实施例一：
在本公开实施例的一种实现方式中，CORESET组包括一个第一CORESET，其中，第一CORESET对应的第一TCI状态的最大数目为大于或等于两个。
本实施例中，CORESET组包括一个第一CORESET，从而终端设备接收到的波束指示信息，即为第一CORESET的波束指示信息，从而波束指示信息指示了第一CORESET对应波束的第一TCI状态，其中，第一CORESET对应波束的第一TCI状态的最大数目为大于或等于两个，也就是说，终端确定的接收波束即为第一CORESET对应波束的一个或多个第一TCI状态指示的波束，终端设备利用第一TCI状态指示的 一个或多个接收波束来接收控制信息，实现了终端设备中接收波束的确定，提高了控制信息接收的成功率。
作为一种实现方式，各第一TCI状态对应的控制资源集池索引不同，或者，各第一TCI状态对应的TRP不同，其中，控制资源集池索引对应一个TRP，也就是说不同的控制资源集池索引对应不同的TRP，从而，一个CORESET对应的各第一TCI状态可对应不同的TRP，也就是说终端设备根据一个CORESET对应的各第一TCI状态确定的不同的接收波束可对应不同的TRP，即实现配置不同的接收波束接收不同的TRP发送的控制信息。
需要说明的是，第一CORESET和第一TCI状态，是为了便于和后续其它实施例中的CORESET和TCI区分，并不具有优先级之分。
本公开实施例中，第一CORESET的波束指示信息，可以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，或者是DCI，下面分别针对不同的实现方式进行说明。
作为一种实现方式，波束指示信息是MAC CE。
其中，第一MAC CE包括第一CORESET的标识和/或CORESET组标识，例如，第一CORESET的标识为CORESET#1，或CORESET#2，或CORESET#3；例如，CORESET组标识为CORESET组#1，CORESET组#2，本实施例中不进行限定。第一MAC CE还包括第一指示域和/或关联的第二指示域，下面具体说明。
作为一种实现方式，第一MAC CE只包括第一指示域，也就是说第一指示域一直出现在第一MAC CE中，不需要通过和第一指示域关联的第二指示域来指示是否出现在第一MAC CE中。
作为第二种实现方式，第一MAC CE只包含第二指示域，该场景下，第二指示域取值为用于指示第一指示域不出现在第一MAC CE中，例如，第二指示域取值为0，指示第一指示域不出现在第一MAC CE中。
作为第三种实现方式，第一MAC CE包含第一指示域和关联的第二指示域，通过第二指示域来指示第一指示域出现在第一MAC CE中或者不出现在第一MAC CE中。
在本实施例的一种实现方式中，第一指示域，用于指示第一TCI状态；或者，第一指示域，用于指示第一TCI状态，以及第一TCI状态对应的控制资源集池索引或TRP；第二指示域，用于指示关联的第一指示域是否出现在第一MAC CE中。
表1中示出了第一MAC CE的一种示例，以第一CORESET对应的TCI状态的数目为2个，进行说明。如表1所示，其中，第二指示域为C 0、C 1，第一指示域为TCI 0和TCI 1，其中，C 0为指示TCI 0域是否出现(Present)在该第一MAC CE中，作为一种实现方式，若C 0值为1，指示TCI 0域出现，若C 0值为0，指示TCI 0域未出现；同理，C 1为指示TCI 1域是否出现。如果没有C 0，也就是说不需要第二指示域来指示TCI 0域是否出现在该第一MAC CE中，即确定TCI 0域肯定出现在该第一MAC CE中。同理，如果没有C 1，也就是说不需要第二指示域来指示对应的TCI1域是否出现在该第一MAC CE中，即确定TCI 1域肯定出现在该第一MAC CE中。
Figure PCTCN2021070676-appb-000001
表1
本实施例中，TCI 0可对应第一TRP的TCI状态，TCI1对应第二TRP的TCI状态，由于控制资源集池索引和TRP具有一一对应的关系，实现了指示第一TCI状态，同时指示第一TCI状态对应的控制资源集池索引或TRP，即实现了在多个TRP场景下，可以配置终端设备对应的波束，以用于接收不同TRP为终端设备发送PDCCH的控制信息。
作为第二种实现方式，波束指示信息是第一DCI。
本实施例的一个示例中，第一DCI包括一个第一码点，其中，第一码点对应的第一TCI状态是第二MAC CE指示的。第一DCI为一个bit，则对应两个第一码点，分别为“0”或“1”。其中，每个第一码点对应一个或两个第一TCI状态，第一码点对应的一个或两个第一TCI状态，是根据第二MAC CE指示第一码点对应的一个或两个第一TCI状态来确定的。
作为本申请实施例的一种实现方式，第二MAC CE包括第一CORESET的标识和/或CORSET组标识，还包括一个或多个第一码点对应的指示域；各第一码点对应的指示域包括：第三指示域和/或关联的第四指示域，下面具体说明。
作为一种实现方式，第二MAC CE只包括第三指示域，也就是说第三指示域一直出现在第二MAC CE中，不需要通过和第三指示域关联的第四指示域来指示是否出现在第二MAC CE中。
作为第二种实现方式，第二MAC CE只包含第四指示域，该场景下，第四指示域取值为用于指示第三指示域不出现在第二MAC CE中，例如，第四指示域取值为0，指示第三指示域不出现在第二MAC CE中。
作为第三种实现方式，第二MAC CE包含第三指示域和关联的第四指示域，通过第四指示域来指示第三指示域出现在第二MAC CE中或者不出现在第二MAC CE中。
在本实施例的一种实现方式中，第三指示域，用于指示第一TCI状态；或者，第三指示域用于指示第一TCI状态，以及第一TCI状态对应的控制资源集池索引或TRP；第四指示域，用于指示关联的第三指示域是否出现在该第二MAC CE中。
其中，第一DCI为多个bit，从而第一DCI对应的第一码点则可以为多个，例如，第一DCI为3个bit，则可以对应8个码点，分别为000,001,010,011,100,101,110,111。本实施例中，每一个码点具有对应的指示域。本实施例中，以每一个码点包含两个指示域，即第三指示域和关联的第四指示域为例进行说明。
如表2所示，表2中示出了第二MAC CE的一种示例。MAC CE中指示一个CORESET的CORESET ID和/或CORESET组ID。其中，以DCI为3bit，可以指示8个码点为例，第一个第一码点000，对应的第四指示域为(C0,0)域和(C0,1)域，第三指示域为(TCI 0,0)域和(TCI 0,1)域。同理，第二个第一码点为001，对应的第四指示域为(C1,0)域和(C1,1)域，第三指示域为TCI 1,0域和TCI 1,1域，对于其他第一码点，原理相同，本实施例中不一一列举。
Figure PCTCN2021070676-appb-000002
表2
其中，第四指示域中(C 0,0)域为指示第三指示域中(TCI 0,0)域是否出现在该第二MAC CE中，例如，(C 0,0)域的值为1，则指示(TCI 0,0)域出现，从而(TCI 0,0)域的值指示了第一TCI状态；第四指示域中(C 0,1)域为指示第三指示域中(TCI 0,1)域是否出现，例如，若(C 0,1)域值为1，则指示(TCI 0,1)域出现，从而(TCI 0,1)域的值指示了第一TCI状态，若(C 0,1)域值为0，则指示(TCI 0,1)不出现。如果没有(C 0,0)域，也就是说不需要第四指示域来指示(TCI 0,1)域是否出现在该第二MAC CE中，即确定(TCI 0,1)域肯定出现在该第二MAC CE中。如果(C 0,1)域不出现，也就是说不需要第四指示域来指示对应的(TCI 0,1) 域是否出现在该第二MAC CE中，即确定(TCI 0,1)域肯定出现在该第二MAC CE中。
本实施例中，例如，第一码点为000，该第一码点对应的第四指示域为(C 0,0)域和(C 0,1)域；第一码点为111，该第一码点对应的第四指示域为(C 7,0)域和(C 7,1)域，本实施例中不一一列举。其中，第一码点为000时对应的两个第一TCI状态，利用第三指示域中(TCI 0,0)域的值和(TCI 0,1)域的值分别指示；第一码点为111时对应的两个第一TCI状态，利用第三指示域中(TCI 7,0)域的值和(TCI 7,1)域的值分别指示。
需要说明的是，本实施例中每一个码点对应的第一TCI状态的最大数目，即为第一CORESET对应的第一TCI状态的最大数目。
实施例二：
在本公开实施例的一种实现方式中，CORESET组包括一个或多个第二CORESET。
其中，各第二CORESET对应的第二TCI状态的最大数目为一个，也就是说各第二CORESET对应的第二TCI状态可以为0个或1个。
需要说明的是，本实施例中为了便于区分，将CORESET组包括的CORESET称为第二CORESET，将各第二CORESET对应的TCI状态称为第二TCI状态。
本实施例中，CORESET组包括一个或多个第二CORESET，其中，第二CORESET指对应的第二TCI状态的最大数目为一个。作为一种实现方式，终端设备接收到的波束指示信息指示了一个第二CORESET对应波束的第二TCI状态，在第二TCI状态为1个时，将第二TCI状态指示的波束作为终端设备接收控制信息的接收波束，实现了终端设备接收波束的指示，提高了控制信息接收的成功率。作为另一种实现方式，终端设备接收到的波束指示信息指示了多个第二CORESET对应波束的第二TCI状态，从而终端设备根据多个第二CORESET对应的第二TCI状态，确定终端设备用于接收控制信息的多个接收波束，其中，多个接收波束和多个第二TCI状态是对应的，也就是说每个第二TCI状态对应一个接收波束，实现了终端设备中接收波束的指示，提高了控制信息接收的成功率。
本公开实施例中，第二CORESET的波束指示信息，可以是MAC CE，或者是DCI，下面分别针对不同的实现方式进行说明。
作为一种实现方式，波束指示信息是第三MAC CE。
其中，由于CORESET组包括一个或多个第二CORESET，从而，第三MAC CE包括至少一个第二CORESET的标识和/或CORESET组标识，也就是说CORESET组包括的第二CORESET，在第三MAC CE中则具有对应的第二CORESET的标识和/或CORESET组标识，实现了在第三MAC CE中指示对应的第二CORESET。
作为一种实现方式，第三MAC CE还包括各第二CORESET对应的第五指示域和/或第六指示域，下面具体说明：
作为一种实现方式，第三MAC CE只包括第一指示域，也就是说第五指示域一直出现在第三MAC CE中，不需要通过和第五指示域关联的第六指示域来指示是否出现在第三MAC CE中。
作为第二种实现方式，第三MAC CE只包含第六指示域，该场景下，第二指示域取值为用于指示第五指示域不出现在第三MAC CE中，例如，第六指示域取值为0，指示第五指示域不出现在第三MAC CE中。
作为第三种实现方式，第三MAC CE包含第五指示域和关联的第六指示域，通过第六指示域来指示第五指示域出现在第三MAC CE中或者不出现在第三MAC CE中。
在本实施例的一种实现方式中，第五指示域，用于指示第二TCI状态；第六指示域，用于指示关联的第五指示域是否出现在该第三MAC CE中。
如表3所示，表3中示出了第三MAC CE的一种示例，以CORESET组包括两个第二CORESET为例进行说明。其中，表3中示出了第二CORESET的标识为CORESET ID#0和CORESET#1的第五指示域和第六指示域，其中，第六指示域为C 0’、C 1’，第五指示域为TCI 0’和TCI 1’，其中，C 0’域用于指示TCI 0’域是否出现在第三MAC CE中，例如，若C 0’域值为1，指示TCI 0’域出现，若C 0’值为0，指示TCI 0’域未出现； 同理，C 1’域用于指示TCI 1域是否出现在第三MAC CE中。如果没有C 0’，也就是说不需要第六指示域来指示TCI 0’域是否出现在第三MAC CE中，即确定TCI 0’域肯定出现在该第三MAC CE中。如果没有C 1’，也就是说不需要第六指示域来指示对应的TCI 1’域是否出现在该第三MAC CE中，即确定TCI 1’域肯定出现在该第三MAC CE中。
1.服务小区标识Serving cell ID  
2.带宽部分标识BWP ID  
3.CORESET ID#0  
4.CORESET ID#1  
5.C 0’ TCI 0’
6.C 1’ TCI 1’
表3
其中，服务小区的标识，可以包含服务小区标识、TRP标识以及控制资源集池索引标识(CORESETPoolIndex)中的至少一项。其中，CORESET ID#0和CORESET ID#1可以替换为CORESET组ID，或替换为CORESET ID#0、CORESET ID#1和CORESET组ID。
在本申请实施例的一种实现方式中，第三MAC CE包括一个第二CORESET的标识，比如CORESET ID#0。而第三MAC CE也适用于与该CORESET ID#0有关联关系的另一个CORESET ID，比如CORESET ID#1。这个关联关系在其它RRC信令或MAC CE信令给出。同样，CORESET ID#0对应第一TRP，其TCI状态为TCI 0’所指示；CORESET ID#1对应第二TRP，其TCI状态为TCI 1’所指示。
在本申请实施例的另一种实现方式中，第三MAC CE包括多个第二CORESET标识，比如，包含两个第二CORESET标识，分别为CORESET ID#0和CORESET ID#1，其中，CORESET ID#0对应第一TRP，其第二TCI状态为TCI 0’所指示；CORESET ID#1对应第二TRP，其第二TCI状态为TCI 1’所指示。
需要说明的是，对于第三MAC CE包括其它数量第二CORESET标识的情况，原理相同，本实施例中不再赘述。
作为第二种实现方式，波束指示信息是第二DCI。
本实施例的一个示例中，第二DCI包括两个第二码点，其中，每个第二码点对应的第二TCI状态是第四MAC CE指示的。第二DCI为一个bit，则对应两个第二码点“0”和“1”。其中，每个第二码点对应一个或两个第二TCI状态，第二码点对应一个或两个第二TCI状态，是根据第四MAC CE指示第二码点对应的一个或两个第二TCI状态来确定的。
作为本申请实施例的一种实现方式，第四MAC CE包括至少一个第二CORESET的标识和/或CORESET组标识，还包括各第二CORESET的一个或多个第二码点对应的指示域，各第二码点对应的指示域包括第七指示域和第八指示域，下面具体说明：
作为一种实现方式，第四MAC CE只包括第七指示域，也就是说第七指示域一直出现在第四MAC CE中，不需要通过和第七指示域关联的第八指示域来指示是否出现在第四MAC CE中。
作为第二种实现方式，第四MAC CE只包含第六指示域，该场景下，第八指示域取值为用于指示第七指示域不出现在第四MAC CE中，例如，第八指示域取值为0，指示第七指示域不出现在第四MAC CE中。
作为第三种实现方式，第四MAC CE包含第七指示域和关联的第八指示域，通过第八指示域来指示第七指示域出现在第三MAC CE中或者不出现在第四MAC CE中。
在本公开的一种实现方式中，第七指示域的个数为一个或多个，各第七指示域用于指示第二TCI状态；或者，各第七指示域，用于指示第二TCI状态，以及第二TCI状态对应的控制资源集池索引或TRP。第八指示域，用于指示对应的至少一个第七指示域是否出现在第四MAC CE中。其中，第七指示域的个数与CORESET组内第二CORESET的数目相同。
其中，第二DCI为多个bit，从而第二DCI对应的第二码点则可以为多个，例如，第二DCI为3个bit，则可以对应8个码点，分别为000,001,010,011,100,101,110,111。本实施例中，每一个第二码点包含两个指 示域，即第七指示域和第八指示域。
如表4所示，表4中示出了第四MAC CE的一种示例。其中，以第七指示域为2个，第七指示域分别对应(TCI i,0’)域和(TCI i,1’)域，i的取值为0～7，分别指示两个CORESET对应的TCI状态，即CORESET ID#0和CORESET ID#1对应的TCI状态。DCI为3bit可以指示8个码点为例，第二码点为000，对应的第八指示域为(C 0,0’)域和(C 0,1’)域，第七指示域分别对应(TCI 0,0’)域和(TCI 0,1’)域。同理，第二码点为111，对应的第八指示域为(C 1,0’)域和(C 1,1’)域，第七指示域分别为(TCI 1,0’)域和(TCI 1,1’)域。对于其他第二码点，原理相同，本实施例中不一一列举。
1.服务小区标识Serving cell ID  
2.带宽部分标识BWP ID  
3.CORESET ID#0  
4.CORESET ID#1  
5.(C 0,0’) (TCI 0,0’)
6.(C 0,1’) (TCI 0,1’)
7.(C 1,0’) (TCI 1,0’)
8.(C 1,1’) (TCI 1,1’)
…… ……
19.(C 7,0’) (TCI 7,0’)
20.(C 7,1’) (TCI 7,1’)
表4
其中，第八指示域中(C 0,0’)域为指示第七指示域中(TCI 0,0’)域是否出现在第四MAC CE中，例如，(C 0,0’)域的值为1，则指示(TCI 0,0’)域出现，从而(TCI 0,0’)域的值指示了CORESET ID#0对应的第二TCI状态；(C 0,0’)域的值为0，则(TCI 0,0’)域的值不出现即不指示CORESET ID#0对应的第二TCI状态。第八指示域中(C 0,1’)域为指示第七指示域中(TCI 0,1’)域是否出现，例如，(C 0,1’)域值为1，则指示(TCI 0,1’)出现，从而(TCI 0,1’)域的值指示了CORESET ID#1对应的第二TCI状态。如果没有(C 0,0’)域，也就是说不需要第八指示域来指示(TCI 0,1’)域是否出现在该第四MAC CE中，即确定(TCI 0,1’)域肯定出现在第四MAC CE中。如果不出现(C 0,1’)域，也就是说不需要第八指示域来指示对应的(TCI 0,1’)域是否出现在第四MAC CE中，即确定(TCI 0,1’)域肯定出现在第四MAC CE中。
本实施例中，例如，第二码点为000，该第二码点对应的第八指示域为(C 0,0’)和(C 0,1’)；第二码点为111，该第二码点对应的第八指示域为(C 7,0’)和(C 7,1’)，本实施例中不一一列举。第二码点为000时对应的第二TCI状态，利用第七指示域中(TCI 0,0’)域的值和(TCI 0,1’)域的值分别指示；第二码点为111时对应的第二TCI状态，利用第七指示域中(TCI 7,0’)域的值和(TCI 7,1’)域的值分别指示。
本公开实施例的波束指示方法中，基于不同的信令携带的波束指示信息，指示的各个CORESET对应的波束的TCI状态，满足了不同的场景需求，并确定终端设备在接收PDCCH利用各CORESET传输信令时对应的接收波束，实现了波束的指示，进而利用该接收波束接收控制信息，其中，控制信息可以为CORESET组内各CORESET上PDCCH发送的DCI信令，提高控制信息接收的成功率。
图2为本实施例提供的另一种波束指示方法的流程示意图，指示了如何对接收的控制信息进行解码，如图2所示，该方法包含以下步骤：
步骤201，接收控制资源集CORESET组的波束指示信息，其中，CORESET组内CORESET的个数为一个或多个，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态。
步骤202，根据波束指示信息，接收控制信息。
本实施例中，步骤201和步骤202，可参照上述任一实施例中的解释说明，原理相同，此处不再赘述。
本实施例中，终端设备在获取到波束指示信息后，根据波束指示信息中指示的TCI状态的数量，确定采用的解码方式，若波束指示信息指示的TCI状态为至少两个时，执行步骤203，若波束指示信息指示的TCI状态为一个时，执行步骤204。
步骤203，对波束指示信息指示的至少两个TCI状态对应波束接收的控制信息，进行合并解码。
本实施例中，波束指示信息指示的TCI状态为至少两个时，对波束指示信息指示的至少两个TCI状态对应波束接收的控制信息，进行合并解码，而不针对每个TCI状态对应波束接收的控制信息进行单独解码，本公开中，通过合并解码，减少了解码的差错，提高了解码的可靠性。
步骤204，对波束指示信息指示的一个TCI状态对应波束接收的控制信息进行独立解码。
本实施例中，波束指示信息指示的TCI状态为一个时，对波束指示信息指示的一个TCI状态对应波束接收的控制信息进行独立解码。
本实施例的波束指示方法中，终端设备通过接收到的CORESET组的波束指示信息，利用波束指示信息指示的各个CORESET对应的波束的TCI状态，其中，TCI状态指示了终端在接收PDCCH利用各CORESET传输信令时对应的接收波束，进而利用该接收波束接收控制信息，其中，控制信息可以为CORESET组内各CORESET上PDCCH发送的DCI信令，提高控制信息接收的成功率。同时，针对波束指示信息指示的TCI状态的个数，实现了解码方式的指示，满足了不同场景下的解码需求。
图3为本申请实施例提供的又一种波束指示方法，该方法应用于网络设备中。
如图3所示，该方法包含以下步骤：
步骤301，向终端设备发送CORESET组的波束指示信息，其中，CORESET组内CORESET的个数为一个或多个，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态。
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，网络设备部署在无线接入网中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。
步骤302，根据CORESET组内各CORESET对应波束的TCI状态，向终端设备发送控制信息。
本实施例中，CORESET组为用于Multi-TRP的PDCCH传输的CORESET组。其中，CORESET组中包含的CORESET的数量可以一个或多个。网络设备向终端设备发送CORESET组的波束指示信息，以使得终端设备通过接收到的CORESET组的波束指示信息，利用波束指示信息指示的各个CORESET对应的波束的TCI状态，确定终端设备在接收PDCCH利用各CORESET传输信令时对应的接收波束，实现了波束的指示，进而利用该接收波束接收控制信息，其中，控制信息可以为CORESET组内各CORESET上PDCCH发送的DCI信令，提高控制信息接收的成功率。
本公开实施例中，CORESET组中包含的CORESET的个数可以为一个或多个，同时，包含不同CORESET数量时，不同CORESET对应的TCI状态的数量也不同，下面分别利用实施例，针对不同场景下的CORESET组，以及各CORESET对应的TCI状态进行说明。
实施例一：
在本公开实施例的一种实现方式中，CORESET组包括一个第一CORESET，其中，第一CORESET对应的第一TCI状态的最大数目为大于或等于两个。
本实施例中，CORESET组包括一个第一CORESET，从而终端设备接收到的波束指示信息，即为第一CORESET的波束指示信息，从而波束指示信息指示了第一CORESET对应波束的第一TCI状态，其中，第一CORESET对应波束的第一TCI状态的最大数目为大于或等于两个，也就是说，终端确定的接收波束即为第一CORESET对应波束的一个或多个第一TCI状态指示的波束，也就是说终端设备利用第一TCI状态指示的一个或多个接收波束来接收控制信息，实现了终端设备中接收波束的确定，提高了控制信息接收的成功率。
作为一种实现方式，各第一TCI状态对应的控制资源集池索引不同，或者，各第一TCI状态对应的TRP不同，其中，控制资源集池索引对应一个TRP，也就是说不同的控制资源集池索引对应不同的TRP，从而，实现了一个CORESET对应的各第一TCI状态对应不同的TRP，也就是说终端设备根据一个CORESET对应的各第一TCI状态确定的不同的接收波束，接收了不同的TRP发送的控制信息。
需要说明的是，第一CORESET和第一TCI状态，是为了便于和后续其它实施例中的CORESET和TCI区分，并不具有优先级之分。
本公开实施例中，第一CORESET的波束指示信息，可以是MAC CE，或者是DCI，下面分别针对不同的实现方式进行说明。
作为一种实现方式，波束指示信息是第一MAC CE。
其中，第一MAC CE包括第一CORESET的标识和/或CORESET组标识，例如，第一CORESET的标识为CORESET#1，或CORESET#2，或CORESET#3；例如，CORESET组标识为CORESET组#1，CORESET组#2，本实施例中不进行限定。第一MAC CE还包括第一指示域和/或关联的第二指示域，下面具体说明。
作为一种实现方式，第一MAC CE只包括第一指示域，也就是说第一指示域一直出现在第一MAC CE中，不需要通过和第一指示域关联的第二指示域来指示是否出现在第一MAC CE中。
作为第二种实现方式，第一MAC CE只包含第二指示域，该场景下，第二指示域取值为用于指示第一指示域不出现在第一MAC CE中，例如，第二指示域取值为0，指示第一指示域不出现在第一MAC CE中。
作为第三种实现方式，第一MAC CE包含第一指示域和关联的第二指示域，通过第二指示域来指示第一指示域出现在第一MAC CE中或者不出现在第一MAC CE中。
在本实施例的一种实现方式中，第一指示域，用于指示第一TCI状态；或者，第一指示域，用于指示第一TCI状态，以及第一TCI状态对应的控制资源集池索引或TRP；第二指示域，用于指示关联的第一指示域是否出现在第一MAC CE中。
如上表1所示，
表1中示出了第一MAC CE的一种示例，以第一CORESET对应的TCI状态的数目为2个，进行说明。如表1所示，其中，第二指示域为C 0、C 1，第一指示域为TCI 0和TCI 1，其中，C 0为指示TCI 0域是否出现(Present)在该第一MAC CE中，作为一种实现方式，若C 0值为1，指示TCI 0域出现，若C 0值为0，指示TCI 0域未出现；同理，C 1为指示TCI 1域是否出现。如果没有C 0，也就是说不需要第二指示域来指示TCI 0域是否出现在该第一MAC CE中，即确定TCI 0域肯定出现在该第一MAC CE中。同理，如果没有C 1，也就是说不需要第二指示域来指示对应的TCI1域是否出现在该第一MAC CE中，即确定TCI 1域肯定出现在该第一MAC CE中。
本实施例中，TCI0可对应第一TRP的TCI状态，TCI1对应第二TRP的TCI状态，由于控制资源集池索引和TRP具有一一对应的关系，实现指示第一TCI状态对应的控制资源集池索引或TRP，即实现了在多个TRP场景下，可以配置终端设备对应的波束，以用于接收不同TRP为终端设备发送PDCCH的控制信息。
作为第二种实现方式，波束指示信息是第一DCI。
本实施例的一个示例中，第一DCI包括一个第一码点，其中，第一码点对应的第一TCI状态是第二MAC CE指示的。第一DCI为一个bit，则对应两个第一码点，分别为“0”或“1”。其中，每个第一码点 对应一个或两个第一TCI状态，第一码点对应的一个或两个第一TCI状态，是根据第二MAC CE指示第一码点对应的一个或两个第一TCI状态来确定的。
作为本申请实施例的一种实现方式，第二MAC CE包括第一CORESET的标识和/或CORSET组标识，还包括一个或多个第一码点对应的指示域；各第一码点对应的指示域包括：第三指示域和/或关联的第四指示域，下面具体说明。
作为一种实现方式，第二MAC CE只包括第三指示域，也就是说第三指示域一直出现在第二MAC CE中，不需要通过和第三指示域关联的第四指示域来指示是否出现在第二MAC CE中。
作为第二种实现方式，第二MAC CE只包含第四指示域，该场景下，第四指示域取值为用于指示第三指示域不出现在第二MAC CE中，例如，第四指示域取值为0，指示第三指示域不出现在第二MAC CE中。
作为第三种实现方式，第二MAC CE包含第三指示域和关联的第四指示域，通过第四指示域来指示第三指示域出现在第二MAC CE中或者不出现在第二MAC CE中。
在本实施例的一种实现方式中，第三指示域，用于指示第一TCI状态；或者，第三指示域用于指示第一TCI状态，以及第一TCI状态对应的控制资源集池索引或TRP；第四指示域，用于指示关联的第三指示域是否出现在该第二MAC CE中。
其中，第一DCI为多个bit，从而第一DCI对应的第一码点则可以为多个，例如，第一DCI为3个bit，则可以对应8个码点，分别为000,001,010,011,100,101,110,111。本实施例中，每一个码点具有对应的指示域。本实施例中，以每一个码点包含两个指示域，即第三指示域和关联的第四指示域为例进行说明。
如表2所示，表2中示出了第二MAC CE的一种示例。MAC CE中指示一个CORESET的CORESET ID和/或CORESET组ID。其中，以DCI为3bit，可以指示8个码点为例，第一个第一码点000，对应的第四指示域为(C0,0)域和(C0,1)域，第三指示域为(TCI 0,0)域和(TCI 0,1)域。同理，第二个第一码点为001，对应的第四指示域为(C1,0)域和(C1,1)域，第三指示域为(TCI 1,0)域和(TCI 1,1)域，对于其他第一码点，原理相同，本实施例中不一一列举。
其中，第四指示域中(C 0,0)域为指示第三指示域中(TCI 0,0)域是否出现在该第二MAC CE中，例如，(C 0,0)域的值为1，则指示(TCI 0,0)域出现，从而(TCI 0,0)域的值指示了第一TCI状态；第四指示域中(C 0,1)域为指示第三指示域中(TCI 0,1)域是否出现，例如，若(C 0,1)域值为1，则指示(TCI 0,1)域出现，从而(TCI 0,1)域的值指示了第一TCI状态，若(C 0,1)域值为0，则指示(TCI 0,1)域不出现。如果没有(C 0,0)域，也就是说不需要第四指示域来指示(TCI 0,1)域是否出现在该第二MAC CE中，即确定(TCI 0,1)域肯定出现在该第二MAC CE中。如果不出现(C 0,1)域，也就是说不需要第四指示域来指示对应的(TCI 0,1)域是否出现在该第二MAC CE中，即确定(TCI 0,1)域肯定出现在该第二MAC CE中。
本实施例中，例如，第一码点为000，该第一码点对应的第四指示域为(C 0,0)和(C 0,1)；第一码点为111，该第一码点对应的第四指示域为(C 7,0)和(C 7,1)，本实施例中不一一列举。第一码点为000时对应的两个第一TCI状态，利用第三指示域中(TCI 0,0)域的值和(TCI 0,1)域的值分别指示；第一码点为111时对应的两个第一TCI状态，利用第三指示域中(TCI 7,0)域的值和(TCI 7,1)域的值分别指示。
需要说明的是，每一个码点对应的第一TCI状态的最大数目，即为第一CORESET对应的第一TCI状态的最大数目。
实施例二：
在本公开实施例的一种实现方式中，CORESET组包括一个或多个第二CORESET。
其中，各第二CORESET对应的第二TCI状态的最大数目为一个，也就是说各第二CORESET对应的第二TCI状态可以为0个或1个。
需要说明的是，本实施例中为了便于区分，将CORESET组包括的CORESET称为第二CORESET，将各第二CORESET对应的TCI状态称为第二TCI状态。
本实施例中，CORESET组包括一个或多个第二CORESET，其中，第二CORESET指对应的第二TCI状态的最大数目为一个。作为一种实现方式，终端设备接收到的波束指示信息指示了一个第二CORESET 对应波束的第二TCI状态，在第二TCI状态为1个时，将第二TCI状态指示的波束作为终端设备接收控制信息的接收波束，实现了终端设备接收波束的指示，提高了控制信息接收的成功率。作为另一种实现方式，终端设备接收到的波束指示信息指示了多个第二CORESET对应波束的第二TCI状态，从而终端设备根据多个第二CORESET对应的第二TCI状态，确定终端设备用于接收控制信息的接收波束，其中，接收波束和第二TCI状态是对应的，也就是说每个第二TCI状态对应一个接收波束，实现了终端设备中接收波束的指示，提高了控制信息接收的成功率。
本公开实施例中，第二CORESET的波束指示信息，可以是MAC CE，或者是DCI，下面分别针对不同的实现方式进行说明。
作为一种实现方式，波束指示信息是第三MAC CE。
其中，由于CORESET组包括一个或多个第二CORESET，从而，第三MAC CE包括至少一个第二CORESET的标识和/或CORESET组标识，也就是说CORESET组包括的第二CORESET，在第三MAC CE中则具有对应的第二CORESET的标识和/或CORESET组标识，实现了在第三MAC CE中指示对应的第二CORESET。
作为一种实现方式，第三MAC CE还包括各第二CORESET对应的第五指示域和/或第六指示域，下面具体说明：
作为一种实现方式，第三MAC CE只包括第一指示域，也就是说第五指示域一直出现在第三MAC CE中，不需要通过和第五指示域关联的第六指示域来指示是否出现在第三MAC CE中。
作为第二种实现方式，第三MAC CE只包含第六指示域，该场景下，第二指示域取值为用于指示第五指示域不出现在第三MAC CE中，例如，第六指示域取值为0，指示第五指示域不出现在第三MAC CE中。
作为第三种实现方式，第三MAC CE包含第五指示域和关联的第六指示域，通过第六指示域来指示第五指示域出现在第三MAC CE中或者不出现在第三MAC CE中。
在本实施例的一种实现方式中，第五指示域，用于指示第二TCI状态；或者，第五指示域，用于指示第二TCI状态，以及第二TCI状态对应的控制资源集池索引或TRP；第六指示域，用于指示关联的第五指示域是否出现在该第三MAC CE中。
如上述实施例中的表3所示，表3中示出了第三MAC CE的一种示例。以CORESET组包括两个第二CORESET为例进行说明。其中，表3中示出了第二CORESET的标识为CORESET ID#0和CORESET#1的第五指示域和第六指示域，其中，第六指示域为C 0’、C 1’，第五指示域为TCI 0’和TCI 1’，其中，C 0 ’域用于指示TCI 0’域是否出现，例如，若C 0’域值为1，指示TCI 0’域出现，若C 0’值为0，指示TCI 0’域未出现；同理，C 1’域用于指示TCI 1域是否出现。如果没有C 0’，也就是说不需要第六指示域来指示TCI 0’域是否出现在第三MAC CE中，即确定TCI 0’域肯定出现在该第三MAC CE中。如果没有C 1’，也就是说不需要第六指示域来指示对应的TCI 1’域是否出现在该第三MAC CE中，即确定TCI 1’域肯定出现在该第三MAC CE中。
其中，服务小区的标识，可以包含服务小区标识、TRP标识以及控制资源集池索引标识(CORESETPoolIndex)中的至少一项。其中，CORESET ID#0和CORESET ID#1可以替换为CORESET组ID，或替换为CORESET ID#0、CORESET ID#1和CORESET组ID。
在本申请实施例的一种实现方式中，第三MAC CE包括一个第二CORESET的标识，比如CORESET ID#0。而第三MAC CE也适用于与该CORESET ID#0有关联关系的另一个CORESET ID，比如CORESET ID#1。这个关联关系在其它RRC信令或MAC CE信令给出。同样，CORESET ID#0对应第一TRP，其TCI状态为TCI 0’所指示；CORESET ID#1对应第二TRP，其TCI状态为TCI 1’所指示。
在本申请实施例的另一种实现方式中，第三MAC CE包括多个第二CORESET标识，比如，包含两个第二CORESET标识，分别为CORESET ID#0和CORESET ID#1，其中，CORESET ID#0对应第一TRP，其第二TCI状态为TCI 0’所指示；CORESET ID#1对应第二TRP，其第二TCI状态为TCI 1’所指示。
需要说明的是，对于第三MAC CE包括其它数量第二CORESET标识的情况，原理相同，本实施例中不再赘述。
作为第二种实现方式，波束指示信息是第二DCI。
本实施例的一个示例中，第二DCI包括两个第二码点，其中，每个第二码点对应的第二TCI状态是第四MAC CE指示的。第二DCI为一个bit，则对应两个第二码点“0”和“1”。其中，每个第二码点对应一个或两个第二TCI状态，第二码点对应一个或两个第二TCI状态，是根据第四MAC CE指示第二码点对应的一个或两个第二TCI状态来确定的。
作为本申请实施例的一种实现方式，第四MAC CE包括至少一个第二CORESET的标识和/或CORESET组标识，还包括各第二CORESET的一个或多个第二码点对应的指示域，各第二码点对应的指示域包括第七指示域和第八指示域，下面具体说明：
作为一种实现方式，第四MAC CE只包括第七指示域，也就是说第七指示域一直出现在第四MAC CE中，不需要通过和第七指示域关联的第八指示域来指示是否出现在第四MAC CE中。
作为第二种实现方式，第四MAC CE只包含第六指示域，该场景下，第八指示域取值为用于指示第七指示域不出现在第四MAC CE中，例如，第八指示域取值为0，指示第七指示域不出现在第四MAC CE中。
作为第三种实现方式，第四MAC CE包含第七指示域和关联的第八指示域，通过第八指示域来指示第七指示域出现在第三MAC CE中或者不出现在第四MAC CE中。
在本公开的一种实现方式中，第七指示域的个数为一个或多个，各第七指示域用于指示第二TCI状态；或者，各第七指示域，用于指示第二TCI状态，以及第二TCI状态对应的控制资源集池索引或TRP。第八指示域，用于指示对应的至少一个第七指示域是否出现在第四MAC CE中。其中，第七指示域的个数与CORESET组内第二CORESET的数目相同。
其中，第二DCI为多个bit，从而第二DCI对应的第二码点则可以为多个，例如，第二DCI为3个bit，则可以对应8个码点，分别为000,001,010,011,100,101,110,111。本实施例中，每一个第二码点包含两个指示域，即第七指示域和第八指示域。
如上表4所示，表4中示出了第四MAC CE的一种示例。其中，以第七指示域为2个，第七指示域分别对应(TCI i,0’)域和(TCI i,1’)域，i的取值为0～7，分别指示两个CORESET对应的TCI状态，即CORESET ID#0和CORESET ID#1对应的TCI状态。DCI为3bit可以指示8个码点为例，第二码点为000，对应的第八指示域为(C 0,0’)域和(C 0,1’)域，第七指示域分别对应(TCI 0,0’)域和(TCI 0,1’)域。同理，第二码点为111，对应的第八指示域为(C 1,0’)域和(C 1,1’)域，第七指示域分别为(TCI 1,0’)域和(TCI 1,1’)域。对于其他第二码点，原理相同，本实施例中不一一列举。
其中，第八指示域中(C 0,0’)域为指示第七指示域中(TCI 0,0’)域是否出现在第四MAC CE中，例如，(C 0,0’)域的值为1，则指示(TCI 0,0’)域出现，从而(TCI 0,0’)域的值指示了CORESET ID#0对应的第二TCI状态；(C 0,0’)域的值为0，则(TCI 0,0’)域的值不出现即不指示CORESET ID#0对应的第二TCI状态。第八指示域中(C 0,1’)域为指示第七指示域中(TCI 0,1’)域是否出现，例如，(C 0,1’)域值为1，则指示(TCI 0,1’)出现，从而(TCI 0,1’)域的值指示了CORESET ID#1对应的第二TCI状态。如果没有(C 0,0’)域，也就是说不需要第八指示域来指示(TCI 0,1’)域是否出现在该第四MAC CE中，即确定(TCI 0,1’)域肯定出现在第四MAC CE中。如果不出现(C 0,1’)域，也就是说不需要第八指示域来指示对应的(TCI 0,1’)域是否出现在第四MAC CE中，即确定(TCI 0,1’)域肯定出现在第四MAC CE中。
本实施例中，例如，第二码点为000，该第二码点对应的第八指示域为(C 0,0’)和(C 0,1’)；第二码点为111，该第二码点对应的第八指示域为(C 7,0’)和(C 7,1’)，本实施例中不一一列举。第二码点为000时对应的第二TCI状态，利用第七指示域中(TCI 0,0’)域的值和(TCI 0,1’)域的值分别指示；第二码点为111时对应的第二TCI状态，利用第七指示域中(TCI 7,0’)域的值和(TCI 7,1’)域的值分别指示。
本公开实施例的波束指示方法中，基于不同的信令携带的波束指示信息，指示的各个CORESET对应的波束的TCI状态，确定终端设备在接收PDCCH利用各CORESET传输信令时对应的接收波束，实现了 波束的指示，进而利用该接收波束接收控制信息，其中，控制信息可以为CORESET组内各CORESET上PDCCH发送的DCI信令，提高控制信息接收的成功率。
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4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4所示，该波束指示装置110包括：第一接收模块41和第二接收模块42。
第一接收模块41，用于接收控制资源集CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
第二接收模块42，用于根据所述波束指示信息，接收控制信息。
可选的，可选的，所述CORESET组包括一个第一CORESET；
其中，所述第一CORESET对应的第一TCI状态的最大数目为大于或等于两个；
各所述第一TCI状态对应的控制资源集池索引不同，或者，各所述第一TCI状态对应的TRP不同。
可选的，所述波束指示信息是第一MAC CE；
其中，所述第一MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括第一指示域和/或关联的第二指示域；
所述第一指示域，用于指示所述第一TCI状态；或者，所述第一指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；
所述第二指示域，用于指示关联的所述第一指示域是否出现在所述第一MAC CE中。
可选的，所述波束指示信息是第一DCI；所述第一DCI包括一个第一码点；其中，所述第一码点对应的第一TCI状态是第二MAC CE指示的。
可选的，所述第二MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括一个或多个第一码点对应的指示域；各所述第一码点对应的指示域包括：第三指示域和/或关联的第四指示域；其中，所述第三指示域，用于指示第一TCI状态；或者，所述第三指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；所述第四指示域，用于指示关联的所述第三指示域是否出现在所述第二MAC CE中。
可选的，所述CORESET组包括一个或多个第二CORESET；
其中，各所述第二CORESET对应的第二TCI状态的最大数目为一个。
可选的，所述波束指示信息是第三MAC CE；
其中，所述第三MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET对应的第五指示域和/或第六指示域；
所述第五指示域，用于指示所述第二TCI状态；或者，所述第五指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；
所述第六指示域，用于指示关联的所述第五指示域是否出现在所述第三MAC CE中。
可选的，所述波束指示信息是第二DCI；
所述第二DCI包括一个第二码点；其中，所述第二码点对应的第二TCI状态是第四MAC CE指示的。
可选的，所述第四MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET的一个或多个所述第二码点对应的指示域；
各所述第二码点对应的指示域包括第七指示域和第八指示域；
其中，所述第七指示域的个数为一个或多个，各所述第七指示域用于指示所述第二TCI状态；或者，各所述第七指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；
所述第八指示域，用于指示对应的至少一个所述第七指示域是否出现在所述第四MAC CE中。
可选的，所述波束指示信息指示的TCI状态为至少两个；所述装置还包括：
第一解码模块，用于对所述波束指示信息指示的至少两个TCI状态对应波束接收的控制信息，进行合并解码。
可选的，所述波束指示信息指示的TCI状态为一个；所述装置还包括：
第二解码模块，用于对所述波束指示信息指示的一个TCI状态对应波束接收的控制信息进行独立解码。
本实施例的波束指示装置中，接收控制资源集CORESET组的波束指示信息，其中，CORESET组内CORESET的个数为一个或多个，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态，根据波束指示信息，接收控制信息。本公开中，基于接收到的波束指示信息，指示的各CORESET对应波束的TCI状态，确定终端设备在接收PDCCH利用各CORESET传输信令时采用的接收波束，实现了波束的指示。
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5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包含发送模块第一发送模块51和第二发送模块52。
第一发送模块51，用于向终端设备发送CORESET组的波束指示信息，其中，CORESET组内CORESET的个数为一个或多个，波束指示信息用于指示CORESET组内各CORESET对应波束的TCI状态。
第二发送模块52，用于根据CORESET组内各CORESET对应波束的TCI状态，向终端设备发送控制信息。
可选的，所述CORESET组包括一个第一CORESET；
其中，所述第一CORESET对应的第一TCI状态的最多个数大于或等于两个；
各所述第一TCI状态对应的控制资源集池索引不同，或者，各所述第一TCI状态对应的TRP不同。
可选的，所述波束指示信息是第一MAC CE；
其中，所述第一MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括第一指示域和/或关联的第二指示域；
所述第一指示域，用于指示所述第一TCI状态；或者，所述第一指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；所述第二指示域，用于指示关联的所述第一指示域是否出现在所述第一MAC CE中。
可选的，所述波束指示信息是第一DCI；
所述第一DCI包括一个第一码点；其中，所述第一码点对应的第一TCI状态是第二MAC CE指示的。
可选的，所述第二MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括一个或多个第一码点对应的指示域；
各所述第一码点对应的指示域包括：第三指示域和/或关联的第四指示域；
其中，所述第三指示域，用于指示第一TCI状态；或者，所述第三指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；
所述第四指示域，用于指示关联的所述第三指示域是否出现在所述第二MAC CE中。
可选的，所述CORESET组包括一个或多个第二CORESET；
其中，各所述第二CORESET对应的第二TCI状态的最大数目为一个。
可选的，所述波束指示信息是第三MAC CE；
其中，所述第三MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET对应的第五指示域和/或第六指示域；
所述第五指示域，用于指示所述第二TCI状态；或者，所述第五指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；
所述第六指示域，用于指示关联的所述第五指示域是否出现在所述第三MAC CE中。
可选的，所述波束指示信息是第二DCI；
所述第二DCI包括一个第二码点；其中，所述第二码点对应的第二TCI状态是第四MAC CE指示的。
可选的，所述第四MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET的一个或多个所述第二码点对应的指示域；
各所述第二码点对应的指示域包括第七指示域和第八指示域；
其中，所述第七指示域的个数为一个或多个，各所述第七指示域用于指示所述第二TCI状态；或者，各所述第七指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；
所述第八指示域，用于指示对应的至少一个所述第七指示域是否出现在所述第二MAC CE中。
本实施例的波束指示装置中，网络设备向终端设备发送CORESET组的波束指示信息，以使得终端设备通过接收到的CORESET组的波束指示信息，利用波束指示信息指示的各个CORESET对应的波束的TCI状态，确定终端设备在接收PDCCH利用各CORESET传输信令时对应的接收波束，实现了波束的指示，进而利用该接收波束接收控制信息，其中，控制信息可以为CORESET组内各CORESET上PDCCH发送的DCI信令，提高控制信息接收的成功率。
为了实现上述实施例，本公开还提出一种通信设备。
本公开实施例提供的通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有处理器运行的可执行程序，其中，处理器运行可执行程序时执行前述方法。
该通信设备可为前述的网络设备或者终端设备。
其中，处理器可包括各种类型的存储介质，该存储介质为非临时性计算机存储介质，在通信设备掉电之后能够继续记忆存储其上的信息。这里，所述通信设备包括基站或终端。
所述处理器可以通过总线等与存储器连接，用于读取存储器上存储的可执行程序，例如，如图1至图3的至少其中之一。
图6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6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：
接收控制资源集CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
根据所述波束指示信息，接收控制信息收发机900，用于在处理器910的控制下接收和发送数据。
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6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。
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7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7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：
向终端设备发送CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
根据所述CORESET组内各CORESET对应波束的TCI状态，向所述终端设备发送控制信息。
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。
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3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3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 (24)

  1. 一种波束指示方法，其特征在于，应用于终端设备，包括：
    接收控制资源集CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
    根据所述波束指示信息，接收控制信息。
  2. 根据权利要求1所述的波束指示方法，其特征在于，所述CORESET组包括一个第一CORESET；
    其中，所述第一CORESET对应的第一TCI状态的最大数目为大于或等于两个；
    各所述第一TCI状态对应的控制资源集池索引不同，或者，各所述第一TCI状态对应的TRP不同。
  3. 根据权利要求2所述的波束指示方法，其特征在于，所述波束指示信息是第一MAC CE；
    其中，所述第一MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括第一指示域和/或关联的第二指示域；
    所述第一指示域，用于指示所述第一TCI状态；或者，所述第一指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；
    所述第二指示域，用于指示关联的所述第一指示域是否出现在所述第一MAC CE中。
  4. 根据权利要求2所述的波束指示方法，其特征在于，所述波束指示信息是第一DCI；
    所述第一DCI包括一个第一码点；其中，所述第一码点对应的第一TCI状态是第二MAC CE指示的。
  5. 根据权利要求4所述的波束指示方法，其特征在于，所述第二MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括一个或多个第一码点对应的指示域；
    各所述第一码点对应的指示域包括：第三指示域和/或关联的第四指示域；
    其中，所述第三指示域，用于指示第一TCI状态；或者，所述第三指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；
    所述第四指示域，用于指示关联的所述第三指示域是否出现在所述第二MAC CE中。
  6. 根据权利要求1所述的波束指示方法，其特征在于，所述CORESET组包括一个或多个第二CORESET；
    其中，各所述第二CORESET对应的第二TCI状态的最大数目为一个。
  7. 根据权利要求6所述的波束指示方法，其特征在于，所述波束指示信息是第三MAC CE；
    其中，所述第三MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET对应的第五指示域和/或第六指示域；
    所述第五指示域，用于指示所述第二TCI状态；或者，所述第五指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；
    所述第六指示域，用于指示关联的所述第五指示域是否出现在所述第三MAC CE中。
  8. 根据权利要求6所述的波束指示方法，其特征在于，所述波束指示信息是第二DCI；
    所述第二DCI包括一个第二码点；其中，所述第二码点对应的第二TCI状态是第四MAC CE指示的。
  9. 根据权利要求8所述的波束指示方法，其特征在于，所述第四MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET的一个或多个所述第二码点对应的指示域；
    各所述第二码点对应的指示域包括第七指示域和第八指示域；
    其中，所述第七指示域的个数为一个或多个，各所述第七指示域用于指示所述第二TCI状态；或者，各所述第七指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；
    所述第八指示域，用于指示对应的至少一个所述第七指示域是否出现在所述第四MAC CE中。
  10. 根据权利要求1-9任一项所述波束指示方法，其特征在于，所述波束指示信息指示的TCI状态为至少两个；所述方法还包括：
    对所述波束指示信息指示的至少两个TCI状态对应波束接收的控制信息，进行合并解码。
  11. 根据权利要求1-9任一项所述波束指示方法，其特征在于，所述波束指示信息指示的TCI状态为一个；所述方法还包括：
    对所述波束指示信息指示的一个TCI状态对应波束接收的控制信息进行独立解码。
  12. 一种波束指示方法，其特征在于，应用于网络设备，包括：
    向终端设备发送CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
    根据所述CORESET组内各CORESET对应波束的TCI状态，向所述终端设备发送控制信息。
  13. 根据权利要求12所述的波束指示方法，其特征在于，所述CORESET组包括一个第一CORESET；
    其中，所述第一CORESET对应的第一TCI状态的最多个数大于或等于两个；
    各所述第一TCI状态对应的控制资源集池索引不同，或者，各所述第一TCI状态对应的TRP不同。
  14. 根据权利要求13所述的波束指示方法，其特征在于，所述波束指示信息是第一MAC CE；
    其中，所述第一MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括第一指示域和/或关联的第二指示域；
    所述第一指示域，用于指示所述第一TCI状态；或者，所述第一指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；
    所述第二指示域，用于指示关联的所述第一指示域是否出现在所述第一MAC CE中。
  15. 根据权利要求13所述的波束指示方法，其特征在于，所述波束指示信息是第一DCI；
    所述第一DCI包括一个第一码点；其中，所述第一码点对应的第一TCI状态是第二MAC CE指示的。
  16. 根据权利要求15所述的波束指示方法，其特征在于，所述第二MAC CE包括所述第一CORESET的标识和/或所述CORESET组标识，还包括一个或多个第一码点对应的指示域；
    各所述第一码点对应的指示域包括：第三指示域和/或关联的第四指示域；
    其中，所述第三指示域，用于指示第一TCI状态；或者，所述第三指示域，用于指示所述第一TCI状态，以及所述第一TCI状态对应的控制资源集池索引或TRP；所述第四指示域，用于指示关联的所述第三指示域是否出现在所述第二MAC CE中。
  17. 根据权利要求12所述的波束指示方法，其特征在于，所述CORESET组包括一个或多个第二CORESET；
    其中，各所述第二CORESET对应的第二TCI状态的最大数目为一个。
  18. 根据权利要求17所述的波束指示方法，其特征在于，所述波束指示信息是第三MAC CE；
    其中，所述第三MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET对应的第五指示域和/或第六指示域；
    所述第五指示域，用于指示所述第二TCI状态；或者，所述第五指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；
    所述六指示域，用于指示关联的所述第五指示域是否出现在所述第三MAC CE中。
  19. 根据权利要求17所述的波束指示方法，其特征在于，所述波束指示信息是第二DCI；
    所述第二DCI包括一个第二码点；其中，所述第二码点对应的第二TCI状态是第四MAC CE指示的。
  20. 根据权利要求19所述的波束指示方法，其特征在于，所述第四MAC CE包括至少一个所述第二CORESET的标识和/或所述CORESET组标识，还包括各所述第二CORESET的一个或多个所述第二码点对应的指示域；
    各所述第二码点对应的指示域包括第七指示域和第八指示域；
    其中，所述第七指示域的个数为一个或多个，各所述第七指示域用于指示所述第二TCI状态；或者，各所述第七指示域，用于指示所述第二TCI状态，以及所述第二TCI状态对应的控制资源集池索引或TRP；所述第八指示域，用于指示对应的至少一个所述第七指示域是否出现在所述第二MAC CE中。
  21. 一种波束指示装置，其特征在于，应用于终端设备，包括：
    第一接收模块，用于接收控制资源集CORESET组的波束指示信息，其中，所述CORESET组内 CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
    第二接收模块，用于根据所述波束指示信息，接收控制信息。
  22. 一种波束指示装置，其特征在于，应用于网络设备，包括：
    第一发送模块，用于向终端设备发送CORESET组的波束指示信息，其中，所述CORESET组内CORESET的个数为一个或多个，所述波束指示信息用于指示所述CORESET组内各CORESET对应波束的TCI状态；
    第二发送模块，用于根据所述CORESET组内各CORESET对应波束的TCI状态，向所述终端设备发送控制信息。
  23. 一种通信设备，其特征在于，其中，包括：收发器；存储器；处理器，分别与所述收发器及所述存储器连接，配置为通过执行所述存储器上的计算机可执行指令，控制所述收发器的无线信号收发，并能够实现权利要求1至11或12至20任一项所述的方法。
  24. 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11或12至20任一项所述的方法。
PCT/CN2021/070676 2021-01-07 2021-01-07 波束指示方法、装置及通信设备 Ceased WO2022147720A1 (zh)

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