WO2022141074A1 - 波束指示方法、波束指示装置及存储介质 - Google Patents

波束指示方法、波束指示装置及存储介质 Download PDF

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Publication number
WO2022141074A1
WO2022141074A1 PCT/CN2020/140943 CN2020140943W WO2022141074A1 WO 2022141074 A1 WO2022141074 A1 WO 2022141074A1 CN 2020140943 W CN2020140943 W CN 2020140943W WO 2022141074 A1 WO2022141074 A1 WO 2022141074A1
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WIPO (PCT)
Prior art keywords
indication
transmission configuration
downlink
uplink
general transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2020/140943
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English (en)
French (fr)
Inventor
李明菊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2020/140943 priority Critical patent/WO2022141074A1/zh
Priority to US18/269,732 priority patent/US20240063979A1/en
Priority to CN202080004456.9A priority patent/CN112771814A/zh
Priority to EP20967422.5A priority patent/EP4274288A4/en
Priority to CN202411733927.6A priority patent/CN119766285A/zh
Publication of WO2022141074A1 publication Critical patent/WO2022141074A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • 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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • 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
    • H04B7/06968—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping using quasi-colocation [QCL] between signals
    • 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
    • H04W72/232—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 physical layer, e.g. DCI signalling
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a beam indicating method, a beam indicating device, and a storage medium.
  • New Radio for example, when the communication frequency band is in frequency range 2, since the high-frequency channel attenuates rapidly, in order to ensure the coverage, it is necessary to use beam-based transmission and reception.
  • PDCH physical downlink control channel
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • beams of each uplink and downlink reference signals are independently indicated.
  • PDCCH and PUCCH use a medium access control (MAC) control element (CE) to activate beams.
  • MAC medium access control
  • PDSCH and PUSCH indicate their respective beams through downlink control information (Downlink Control Information, DCI) signaling.
  • DCI Downlink Control Information
  • a common beam is used for indication.
  • the common beam can be used for the indication of uplink and downlink channels and/or reference signals of the terminal.
  • how to carry out the instructions for common beam remains to be studied.
  • the present disclosure provides a beam indicating method, a beam indicating device and a storage medium.
  • a beam indication method which is applied to a terminal.
  • the beam indication method includes: receiving first indication information, where the first indication information is used to indicate one or more general transmission configurations Indication status, the general transmission configuration indicator status includes uplink and downlink general transmission configuration indicator status applicable to uplink and downlink, or uplink general transmission configuration indicator status suitable for uplink and/or downlink general transmission configuration indicator status suitable for downlink.
  • the first indication information includes a first indication field and/or a second indication field
  • the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state
  • the second indication field is used to indicate the downlink general transmission configuration indication state or the uplink and downlink general transmission configuration indication state.
  • the first indication field and the second indication field are located in the same downlink control information DCI format.
  • the first indication field and the second indication field are different.
  • the first indication field and the second indication field are the same.
  • the first indication field and the second indication field are represented by different bits.
  • the first indication field and the second indication field are represented by different bit values of the same bit.
  • the general transmission configuration indication states have a second mapping relationship; the value of the first bit is used to represent the first indication field, and the value of the second bit is used to represent the second indication field.
  • the first indication field and the second indication field are located in different downlink control information DCI formats.
  • the first indication field and/or the second indication field is one or a combination of the following:
  • the indication field in the downlink control signaling is used for the transmission configuration indication of the physical downlink shared channel dedicated beam indication; the indication field in the downlink control signaling is used for indicating the sounding reference signal resource indication; and the downlink control signaling adds an indication field.
  • the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.
  • the beam indication method further includes: receiving second indication information, where the second indication information is used to indicate a channel and/or a reference signal to which the general transmission configuration indication state is applicable.
  • the one or more general transmission configuration indication states are transmission configuration indication states of the same transmission reception point.
  • the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.
  • the beam indication method further includes:
  • Third indication information is received, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication state of one or more transmission reception points.
  • Receive fourth indication information where the fourth indication information is used to indicate that the first indication information is used to indicate at least one of an uplink and downlink general transmission configuration indication state, an uplink general transmission configuration indication state, and a downlink general transmission configuration indication state .
  • a beam indication method which is applied to a network device.
  • the beam indication method includes: sending first indication information, where the first indication information is used to indicate one or more general transmission configurations Indication status, the general transmission configuration indicator status includes uplink and downlink general transmission configuration indicator status applicable to uplink and downlink, or uplink general transmission configuration indicator status suitable for uplink and/or downlink general transmission configuration indicator status suitable for downlink.
  • the first indication information includes a first indication field and/or a second indication field
  • the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state
  • the second indication field is used to indicate the downlink general transmission configuration indication state or the uplink and downlink general transmission configuration indication state.
  • the first indication field and the second indication field are located in the same downlink control information DCI format.
  • the first indication field and the second indication field are different.
  • the first indication field and the second indication field are the same.
  • the first indication field and the second indication field are represented by different bits.
  • the first indication field and the second indication field are represented by different bit values of the same bit.
  • the general transmission configuration indication states have a second mapping relationship; the value of the first bit is used to represent the first indication field, and the value of the second bit is used to represent the second indication field.
  • the first indication field and the second indication field are located in different downlink control information DCI formats.
  • the first indication field and/or the second indication field is one or a combination of the following:
  • the indication field in the downlink control signaling is used for the transmission configuration indication of the physical downlink shared channel dedicated beam indication; the indication field in the downlink control signaling is used for indicating the sounding reference signal resource indication; and the downlink control signaling adds an indication field.
  • the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.
  • the beam indication method further includes: sending second indication information, where the second indication information is used to indicate a channel and/or a reference signal to which the general transmission configuration indication state is applicable.
  • the one or more general transmission configuration indication states are transmission configuration indication states of the same transmission reception point.
  • the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.
  • the beam indication method further includes: sending third indication information, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication of one or more transmission and reception points state.
  • the beam indication method further includes: sending fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate the indication status of the uplink and downlink general transmission configuration, the uplink general transmission configuration At least one of an indication state and a downlink general transmission configuration indication state.
  • a beam indication apparatus which is applied to a terminal.
  • the beam indication apparatus includes: a receiving unit configured to receive first indication information, where the first indication information is used to indicate one or more A plurality of general transmission configuration indication states, the general transmission configuration indication states include uplink and downlink general transmission configuration indication states applicable to uplink and downlink, or uplink general transmission configuration indication states suitable for uplink and/or downlink general transmission configuration indication states suitable for downlink
  • the transport configuration indicates the status.
  • the first indication information includes a first indication field and/or a second indication field
  • the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state
  • the second indication field is used to indicate the downlink general transmission configuration indication state or the uplink and downlink general transmission configuration indication state.
  • the first indication field and the second indication field are located in the same downlink control information DCI format.
  • the first indication field and the second indication field are different.
  • the first indication field and the second indication field are the same.
  • the first indication field and the second indication field are represented by different bits.
  • the first indication field and the second indication field are represented by different bit values of the same bit.
  • the general transmission configuration indication states have a second mapping relationship; the value of the first bit is used to represent the first indication field, and the value of the second bit is used to represent the second indication field.
  • the first indication field and the second indication field are located in different downlink control information DCI formats.
  • the first indication field and/or the second indication field is one or a combination of the following:
  • the indication field in the downlink control signaling is used for the transmission configuration indication of the physical downlink shared channel dedicated beam indication; the indication field in the downlink control signaling is used for indicating the sounding reference signal resource indication; and the downlink control signaling adds an indication field.
  • the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.
  • the receiving unit is further configured to: receive second indication information, where the second indication information is used to indicate a channel and/or a reference signal to which the general transmission configuration indication state is applicable.
  • the one or more general transmission configuration indication states are transmission configuration indication states of the same transmission reception point.
  • the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.
  • the receiving unit is further configured to: receive third indication information, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication of one or more transmission reception points state.
  • the receiving unit is further configured to: receive fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate the indication status of the uplink and downlink general transmission configuration, the uplink general transmission configuration At least one of an indication state and a downlink general transmission configuration indication state.
  • a beam indication apparatus which is applied to a network device.
  • the beam indication apparatus includes: a sending unit configured to send first indication information, where the first indication information is used to indicate a or multiple general transmission configuration indication states, the general transmission configuration indication states include uplink and downlink general transmission configuration indication states applicable to uplink and downlink, or uplink general transmission configuration indication states applicable to uplink and/or downlink applicable to downlink Generic Transport Configuration Indication Status.
  • the first indication information includes a first indication field and/or a second indication field
  • the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state
  • the second indication field is used to indicate the downlink general transmission configuration indication state or the uplink and downlink general transmission configuration indication state.
  • the first indication field and the second indication field are located in the same downlink control information DCI format.
  • the first indication field and the second indication field are different.
  • the first indication field and the second indication field are the same.
  • the first indication field and the second indication field are represented by different bits.
  • the first indication field and the second indication field are represented by different bit values of the same bit.
  • the general transmission configuration indication states have a second mapping relationship; the value of the first bit is used to represent the first indication field, and the value of the second bit is used to represent the second indication field.
  • the first indication field and the second indication field are located in different downlink control information DCI formats.
  • the first indication field and/or the second indication field is one or a combination of the following:
  • the indication field in the downlink control signaling is used for the transmission configuration indication of the physical downlink shared channel dedicated beam indication; the indication field in the downlink control signaling is used for indicating the sounding reference signal resource indication; and the downlink control signaling adds an indication field.
  • the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.
  • the sending unit is further configured to: send second indication information, where the second indication information is used to indicate a channel and/or a reference signal to which the general transmission configuration indication state is applicable.
  • the one or more general transmission configuration indication states are transmission configuration indication states of the same transmission reception point.
  • the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.
  • the sending unit is further configured to: send third indication information, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication of one or more transmission reception points state.
  • the sending unit is further configured to: send fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate the indication status of the uplink and downlink general transmission configuration, the uplink general transmission configuration At least one of an indication state and a downlink general transmission configuration indication state.
  • a beam indication device including:
  • processor ; memory for storing processor-executable instructions;
  • the processor is configured to: execute the first aspect or the beam indication method described in any implementation manner of the first aspect.
  • a beam indication device including:
  • processor ; memory for storing processor-executable instructions;
  • the processor is configured to: execute the beam indication method described in the second aspect or any implementation manner of the second aspect.
  • a non-transitory computer-readable storage medium which enables the mobile terminal to execute the first aspect or the first aspect when instructions in the storage medium are executed by a processor of a mobile terminal.
  • a non-transitory computer-readable storage medium when the instructions in the storage medium are executed by a processor of a network device, the network device can perform any of the second aspect or the second aspect.
  • the network device sends the first indication information
  • the terminal receives the first indication information.
  • the first indication information is used to indicate one or more general transmission configuration indication states
  • the general transmission configuration indication states include uplink and downlink general transmission configuration indication states applicable to uplink and downlink, or uplink general transmission configuration indication states applicable to uplink And/or the downlink general transmission configuration indication state applicable to the downlink, thereby realizing the indication of the general transmission configuration indication state and saving signaling overhead.
  • FIG. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.
  • Fig. 2 is a flow chart of a beam indication method according to an exemplary embodiment.
  • Fig. 3 is a flow chart of a beam indication method according to an exemplary embodiment.
  • Fig. 4 is a flow chart of a beam indication method according to an exemplary embodiment.
  • Fig. 5 is a flow chart of a beam indication method according to an exemplary embodiment.
  • Fig. 6 is a flow chart showing a beam indication method according to an exemplary embodiment.
  • Fig. 7 is a flow chart of a beam indication method according to an exemplary embodiment.
  • Fig. 8 is a block diagram of a beam indicating apparatus according to an exemplary embodiment.
  • Fig. 9 is a block diagram of a beam indicating apparatus according to an exemplary embodiment.
  • Fig. 10 is a block diagram of an apparatus for beam indication according to an exemplary embodiment.
  • Fig. 11 is a block diagram of an apparatus for beam indication according to an exemplary embodiment.
  • the wireless communication system includes a terminal and a network device.
  • the terminal is connected to the network device through wireless resources, and transmits and receives data.
  • the wireless communication system shown in FIG. 1 is only a schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, etc. Not shown in Figure 1.
  • the embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in the wireless communication system.
  • the wireless communication system is a network that provides a wireless communication function.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (single Carrier FDMA, SC-FDMA), carrier sense Carrier Sense Multiple Access with Collision Avoidance.
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • single carrier frequency division multiple access single Carrier FDMA, SC-FDMA
  • carrier sense Carrier Sense Multiple Access with Collision Avoidance CDMA
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G International: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio New Radio
  • the present disclosure will sometimes refer to a wireless communication network simply as a network.
  • the wireless access network equipment may be: a base station, an evolved node B (eNB), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay A node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., can also be a gNB in an NR system, or can also be a component or part of a device that constitutes a base station Wait.
  • the network device may also be an in-vehicle device. It should be understood that, in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network device are not limited.
  • the terminal involved in the present disclosure may also be referred to as terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc.
  • a device that provides voice and/or data connectivity for example, a terminal may be a handheld device with wireless connectivity, a vehicle-mounted device, or the like.
  • some examples of terminals are: Smartphone (Mobile Phone), Pocket Personal Computer (PPC), PDA, Personal Digital Assistant (PDA), notebook computer, tablet computer, wearable device, or Vehicle equipment, etc.
  • the terminal device may also be an in-vehicle device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.
  • the common beam is used to indicate the channel and/or the reference signal.
  • the common beam may be a separate indication of uplink transmission or downlink transmission, or a joint indication of uplink transmission and downlink transmission.
  • the network device indicates the common beam used for downlink
  • the common beam can be used to indicate the PDSCH and all or a part of the PDCCH of the terminal (such as a terminal dedicated PDCCH (UE dedicated PDCCH)).
  • the common beam can be used to indicate the PUSCH and all or part of the PUCCH of the terminal. If the network device indicates a common beam, the beam can be used for uplink and downlink channels and/or reference signals of the terminal.
  • the common beam is an indication of which channels and/or reference signals are used, which is indicated by signaling or specified by a standard, and can be known by the terminal. However, how the common beam indicates the channel and/or the reference signal remains to be studied.
  • the embodiment of the present disclosure provides a beam indication method, which indicates one or more common transmission configuration indication states (common TCI state) through indication information, so as to realize the indication of the common beam.
  • the common TCI state includes UL & DL common TCI state applicable to uplink (uplink, UL) and downlink (downlink, DL), or UL common TCI state applicable to UL and/or DL common TCI state applicable to DL state.
  • common TCI state involved in the embodiments of the present disclosure can be understood as corresponding to the common beam.
  • common beam and common TCI state are sometimes used interchangeably
  • DL common beam and DL common TCI state are sometimes used interchangeably
  • UL common beam and UL common TCI state are sometimes used interchangeably
  • UL common beam can also be used interchangeably with UL common SpatialRelationInfo, and those skilled in the art should understand the consistency of its meaning.
  • the indication information for indicating the common TCI state is referred to as the first indication information.
  • Fig. 2 is a flow chart of a beam indication method according to an exemplary embodiment. As shown in Fig. 2 , the beam indication method used in a terminal includes the following steps.
  • step S11 first indication information is received, where the first indication information is used to indicate one or more common TCI states.
  • common TCI state includes UL&DL common TCI state applicable to UL and DL.
  • the common TCI state may be the UL common TCI state applicable to UL, or the common TCI state may be the DL common TCI state applicable to DL.
  • the first indication information may be used to indicate M DL common TCI states and/or N UL common TCI states, or L UL&DL common TCI states.
  • M is greater than or equal to 1
  • N is greater than or equal to 1
  • L is greater than or equal to 1.
  • the beam indication method provided by the embodiment of the present disclosure indicates the UL common TCI state and/or the DL common TCI state, or the UL&DL common TCI state through the indication field of the first indication information.
  • the first indication information needs to indicate the UL&DL common TCI state.
  • a single transmission of the first indication information may indicate the DL common beam, or the UL common beam, or the DL common beam and the UL common beam together.
  • the first indication information includes a first indication field.
  • the first indication field is used to indicate the UL common TCI state.
  • the first indication information includes a first indication field.
  • the first indication field is used to indicate the UL&DL common TCI state.
  • the first indication information includes a second indication field.
  • the second indication field is used to indicate the DL common TCI state.
  • the first indication information includes a second indication field. Wherein, the second indication field is used to indicate the UL&DL common TCI state.
  • the first indication information includes a first indication field and a second indication field, wherein the first indication field is used to indicate the UL common TCI state, and the second indication field is used to indicate the UL common TCI state.
  • the indication field is used to indicate the DL common TCI state.
  • the first indication field and the second indication field discussed in the embodiments of the present disclosure are described by taking the first indication field being used to indicate the UL common TCI state and the second indication field being used to indicate the DL common TCI state as an example.
  • the first indication field does not need to indicate the UL common beam separately. It can also be used to indicate the UL&DL common TCI state; similarly, the second indication field can also be used to indicate the UL&DL common TCI state when it is not necessary to indicate the DL common beam separately. That is, when only one UL&DL common TCI state is indicated, only one indication field is required.
  • the first indication field and the second indication field may be in the same DCI format (DCI format), or may be in different DCI formats.
  • the first indication field and the second indication field are located in the same DCI format (DCI format), and the first indication field and the second indication field are different, that is, the DL common TCI state and the UL common TCI state
  • the indication fields of the state are different.
  • the indication fields of the DL common TCI state and the UL common TCI state are different.
  • the first indication field and/or the second indication field may be an indication field of a transmission configuration indication (transmission configuration indication, TCI) used for PDSCH dedicated beam indication in DCI signaling.
  • the indication field used to indicate sounding reference signal (sounding reference signal, SRS) resource indication in DCI signaling the English abbreviation may be SRS resource indicator.
  • the newly added indication field in DCI signaling in the DCI format used for downlink scheduling, the second indication field used to indicate the DL common TCI state multiplexes the indication field of the transmission configuration indication TCI used for the PDSCH dedicated beam indication in the existing DCI signaling.
  • the first indication field used to indicate the UL common TCI state may be a newly added indication field in the DCI.
  • a new indication field for indicating the UL common beam is added to the DCI.
  • different indication fields may be added to the DCI in the DCI format used for downlink scheduling or uplink scheduling.
  • the DL common TCI state and the UL common TCI state respectively indicate the DL common beam and UL common TCI state by adding new indication fields.
  • UL common beam For another example, in the DCI format used for uplink scheduling, the first indication field used to indicate the UL common TCI state multiplexes the indication field used for SRS resource indication in the existing DCI signaling to indicate the DL common TCI state.
  • the second indication field may be a newly added indication field in the DCI.
  • the first indication field and the second indication field are located in the same DCI format, and the first indication field and the second indication field are the same, that is, the DL common TCI state and the UL common The indication fields of the TCI state are the same.
  • the indication fields of the DL common TCI state and the UL common TCI state are the same, and the first indication field and the second indication field are represented by different bits.
  • the first indication field and/or the second indication field may be one or a combination of the following: an indication field in the DCI signaling for the transmission configuration indication (transmission configuration indication, TCI) indicated by the PDSCH-specific beam;
  • the indication field indicating the sounding reference signal (sounding reference signal, SRS) resource indication, the English abbreviation may be SRS resource indicator; and the newly added indication field in the DCI signaling.
  • the indication fields of DL common TCI state and UL common TCI state multiplex the TCI indication field used for PDSCH dedicated beam indication in existing DCI signaling, and the number of bits can be greater than or equal to the existing number of bits 3 bits, but the DL common TCI state and the UL common TCI state occupies a different bit in the indication field.
  • the first indication field and the second indication field are located in the same DCI format, the first indication field and the second indication field are the same, and the first indication field and the second indication field are the same. Fields are characterized by different bit values of the same bit.
  • the first indication field and/or the second indication field may be one or a combination of the following: an indication field for the TCI indicated by the PDSCH-specific beam in DCI signaling; SRS resource indicator in DCI signaling; and newly added in DCI signaling the indicator field.
  • the indication fields of the DL common TCI state and the UL common TCI state multiplex the TCI indication field used for the PDSCH-specific beam indication in the existing DCI signaling, and the DL common TCI state and the UL common TCI state occupy the same bits in the indication field
  • the first indication field and the second indication field are represented by different bit values of the same bit, that is, codepoint. It should be noted that, even if the indication field of the TCI indicated by the multiplexed PDSCH dedicated beam or the multiplexed SRS resource indicator, the number of bits can remain unchanged or increase on the basis of the existing number of bits.
  • the DL common TCI state and the UL common TCI state are indicated by bit code words corresponding to different bit values.
  • the first indication field and/or the second indication field may be one or a combination of the following: an indication field for the TCI indicated by the PDSCH-specific beam in DCI signaling; SRS resource indicator in DCI signaling; and newly added in DCI signaling the indicator field.
  • the value of the first bit is used to represent the first indication field
  • the value of the second bit is used to represent the second indication field.
  • bit code word (code point) corresponding to the first bit value and the UL common TCI state there is a first mapping relationship between the bit code word (code point) corresponding to the first bit value and the UL common TCI state, and/or between the code point corresponding to the second bit value and the DL common TCI state.
  • the bit codeword corresponding to the third bit value may also have a third mapping relationship with the UL common TCI state and the DL common TCI state.
  • the code point corresponding to the Bit value has a mapping relationship with the DL common TCI state and/or the UL common TCI state, and the mapping relationship is indicated by a medium access control (Medium Access Control, MAC) control element (Control Element, CE) .
  • Medium Access Control Medium Access Control
  • CE Control Element
  • the indication field contains 3 bits, the code point of 000 corresponds to DL common TCI state#0 and UL common TCI state#1, 001 corresponds to DL common TCI state#2, 010 corresponds to UL common TCI state#3, and 011 corresponds to DL common TCI state#4 and UL common TCI state#5...
  • the numbers of DL common TCI state and UL common TCI state can be numbered jointly or independently, without limitation.
  • the DCI sent once is used to indicate the DL common TCI state or the UL common TCI state, that is, the same DCI signaling can indicate the DL common TCI state or the UL common TCI state within the first time .
  • the DCI sent once indicates whether the DL common beam or the UL common beam is indicated by using an implicit indication method or an explicit indication method.
  • the DCI that uses the implicit indication method to indicate a single transmission indicates whether the DL common beam or the UL common beam is indicated.
  • the DCI signaling of the DCI format used for downlink scheduling may indicate downlink resource scheduling, then it is It is used to indicate the DL common beam; if the downlink resource scheduling is not indicated, it can be understood that it is used to indicate the UL common beam.
  • the DL common beam is indicated in the DCI signaling of the DCI format used for downlink scheduling
  • the UL common beam is indicated in the DCI signaling of the DCI format used for the uplink scheduling.
  • the first indication field and the second indication field are located in different DCI formats, that is, the indication fields of the DL common TCI state and the UL common TCI state are in different DCI formats.
  • the indication field used to indicate the DL common TCI state is in the DCI format used for downlink scheduling, and the TCI indication field used for PDSCH dedicated beam indication in the existing DCI signaling can be multiplexed or a new indication field can be added.
  • the indication field used to indicate the UL common TCI state In the DCI format used for uplink scheduling, the SRS resource indicator in the existing DCI signaling can be reused, or a new indication field can be added, which is used to indicate UL common beam.
  • the first indication field and the second indication field are located in different DCI formats, and the DCI sent once is used to indicate the DL common TCI state or the UL common TCI state, that is, the same DCI signaling is in The DL common TCI state or the UL common TCI state can be indicated for the first time.
  • the DL common beam may be indicated when there is downlink transmission, and the UL common beam may be indicated when there is uplink transmission.
  • the channel and/or the reference signal to which the common TCI state is applicable may be indicated by the indication information.
  • the indication information for indicating the channel and/or the reference signal to which the common TCI state is applicable is referred to as the second indication information.
  • FIG. 3 is a flow chart of a beam indication method according to an exemplary embodiment. As shown in FIG. 3 , the beam indication method is used in a terminal, and the method may be executed alone or in combination with other embodiments of the present disclosure. The method is performed together; the method includes the following steps.
  • step S21 second indication information is received, where the second indication information is used to indicate a channel and/or a reference signal to which the common TCI state is applicable.
  • the second indication information may be Radio Resource Control (Radio Resource Control, RRC) signaling, or may be MAC CE signaling.
  • RRC Radio Resource Control
  • the terminal indicates through RRC signaling and/or MAC CE signaling that the DL common TCI state is used to indicate which beams for downlink transmission.
  • the DL common TCI state is indicated by RRC signaling and/or MAC CE signaling to indicate PDCCH, PDSCH, physical broadcast channel (PBCH), synchronization signal block (Synchronization Signal Block, SSB), demodulation reference signal (Demodulation Reference Signal, DMRS), at least one of channel state information reference signal (channel state information reference signal, CSI-RS), positioning reference signal (Positioning reference signal, PRS), tracking reference signal (tracking reference signal, TRS), etc.
  • PBCH physical broadcast channel
  • SSB Synchronization Signal Block
  • DMRS demodulation Reference Signal
  • CSI-RS positioning reference signal
  • PRS positioning reference signal
  • TRS tracking reference signal
  • the terminal indicates the reference signal (such as CSI-RS) through RRC signaling and/or MAC CE signaling, and can also indicate its use, such as whether it is CSI-RS for beam measurement or for channel state information. Measured CSI-RS, etc.
  • the reference signal such as CSI-RS
  • the terminal can also indicate whether it is applicable to all transmissions of the channel or only to the UE-specific part.
  • PDCCH can also indicate whether it is applicable to all PDCCHs or only UE-specific PDCCHs.
  • the second indication information indicates that the UL common TCI state is used to indicate which beams for uplink transmission. For example, at least two beams of PUCCH, PUSCH, Physical Random Access Channel (Physical Random Access Channel, PRACH), SRS, and DMRS are indicated through RRC signaling and/or MAC CE signaling.
  • the reference signal such as the same SRS, its purpose can also be indicated, such as SRS for beam measurement, SRS for codebook-based channel state information measurement, or non-codebook-based channel state information measurement. It is the SRS used for antenna switching, the SRS used for positioning measurement, and so on.
  • the second indication information may further indicate that the uplink and downlink general transmission configuration indication status is used to indicate which uplink and downlink transmission beams are.
  • the uplink and downlink general transmission configuration indication status is indicated by RRC signaling and/or MAC CE signaling to indicate PDCCH, PDSCH, PUCCH, PUSCH, physical random access channel (Physical Random Access Channel, PRACH), physical broadcast channel (Physical broadcast channel, PBCH), synchronization signal block (Synchronization Signal Block, SSB), demodulation reference signal (Demodulation Reference Signal, DMRS), channel state information reference signal (channel state information reference signal, CSI-RS), positioning reference signal ( A beam of at least two of Positioning reference signals, PRS), tracking reference signals (tracking reference signals, TRS), SRS, and the like.
  • RRC signaling and/or MAC CE signaling to indicate PDCCH, PDSCH, PUCCH, PUSCH, physical random access channel (Physical Random Access Channel, PRACH), physical broadcast channel (Physical broadcast channel
  • the terminal indicates the reference signal (such as CSI-RS) through RRC signaling and/or MAC CE signaling, and can also indicate its use, such as whether it is CSI-RS for beam measurement or for channel state information. Measured CSI-RS, etc.
  • it is also an SRS, and its use can also be indicated, such as whether it is an SRS for beam measurement, an SRS for codebook-based channel state information measurement, or an SRS for non-codebook-based channel state information measurement, or whether it is used for The SRS for antenna switching, or the SRS for positioning measurement, etc.
  • PDCCH can also indicate whether it is applicable to all transmissions of the channel or only to the UE-specific part.
  • PDCCH can also indicate whether it is applicable to all PDCCHs or only UE-specific PDCCHs.
  • the common TCI state is indicated for a single or multiple TRPs, that is, the common TCI state can be indicated by the first indication information for a single or multiple TRPs. That is, one or more common TCI states are TCI states of the same TRP. Or one or more common TCI states are TCI states of multiple TRPs.
  • the indication information indicates that the first indication information is used to indicate the common TCI state of one TRP, or the first indication information is used to indicate the common TCI state of multiple TRPs.
  • the indication information used to indicate that the first indication information indicates the common TCI state of one or more TRPs is referred to as the third indication information.
  • FIG. 4 is a flow chart of a beam indication method according to an exemplary embodiment. As shown in FIG. 4 , the beam indication method is used in a terminal, and the method may be executed alone or in combination with other embodiments of the present disclosure. The method is performed together; the method includes the following steps.
  • step S31 third indication information is received, where the third indication information is used to indicate that the first indication information is used to indicate the common TCI state of one or more TRPs.
  • the third indication information is used to indicate that the first indication information is used to indicate the common TCI state of a single TRP, that is, at most one DL common TCI state, at most one UL common TCI state, at most one UL&DL common TCI state.
  • the third indication information is used to indicate that the first indication information is used to indicate multiple TRPs, it may be necessary to indicate multiple DL common TCI states, multiple UL common TCI states, and multiple UL&DL common TCI states.
  • the third indication information indicates that the first indication information is used to indicate the indication fields of multiple DL common TCI states, which are the same as the indication fields of a single DL common TCI state, and the code points of the indication fields correspond to one or two DL common TCI state, the corresponding relationship between code point and one or two DL common TCI states is given by MAC CE, similar to the previous one.
  • the third indication information indicates that the first indication information is used to indicate the indication fields of multiple UL common TCI states, which are the same as the indication fields of a single UL common TCI state, and the code points of the indication fields correspond to one or two.
  • a UL common TCI state, the corresponding relationship between the code point and one or two UL common TCI states is given by the MAC CE, which is similar to the previous one.
  • the third indication information indicates that the first indication information is used to indicate the indication fields of multiple UL&DL common TCI states, which are the same as the indication fields of a single UL&DL common TCI state, and the code points of the indication fields correspond to one or two.
  • a UL&DL common TCI state, the corresponding relationship between the code point and one or two UL&DL common TCI states is given by the MAC CE, which is similar to the previous one.
  • one UL&DL common TCI state can be indicated through the indication information, or the DL common TCI state and the UL common TCI state are indicated separately. It can also be understood that the terminal receives fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate at least one of the UL&DL common TCI state, the DL common TCI state, and the UL common TCI state.
  • the fourth indication information may be RRC signaling and/or MAC signaling.
  • RRC signaling and/or MAC signaling indicates whether one common TCI state is used, or whether the DL common TCI state and the UL common TCI state are separately indicated.
  • X TCI states must be activated, and Y TCI states can be activated.
  • the bit positions used to activate X TCI states and Y TCI states are different. When only these X TCI states are activated, it means that it is a common TCI state, that is, joint DL/UL beam indication, which is equivalent to that each TCI state in the X TCI states can be used for uplink and downlink.
  • Y TCI states When Y TCI states are also activated, it means separate DL/UL beam indication, while X are used for DL and Y are used for UL.
  • the X and Y values can be the same.
  • the RRC and/or MAC signaling indicates at least one of the bit field position and the number of bits indicated by the common TCI state in the DCI.
  • the beam indication method provided by the embodiments of the present disclosure reduces signaling overhead through the common beam indication method, and realizes separate indication of DL common beam and UL common beam, as well as a dynamic indication method of DL common TCI state and UL common TCI state. Among them, including the DCI format corresponding to the DL common beam and the UL common beam, the indication field in the DCI signaling, and the indication meaning of the code point of the DCI signaling, etc.
  • the beam indication method provided by the present disclosure the reliability of DCI signaling is improved and the signaling overhead of beam indication is reduced.
  • Fig. 5 is a flow chart of a beam indication method according to an exemplary embodiment. As shown in Fig. 5 , the beam indication method is used in a network device and includes the following steps.
  • step S41 first indication information is sent, where the first indication information is used to indicate one or more common TCI states.
  • common TCI state includes UL&DL common TCI state applicable to UL and DL.
  • the common TCI state may also be the UL common TCI state applicable to UL, or the common TCI state may also be the DL common TCI state applicable to DL.
  • the UL common TCI state and/or the DL common TCI state, or the UL&DL common TCI state is indicated by the indication field of the first indication information.
  • the first indication information includes a first indication field.
  • the first indication field is used to indicate UL common TCI state or UL&DL common TCI state.
  • the first indication information includes a second indication field.
  • the second indication field is used to indicate DL common TCI state or UL&DL common TCI state.
  • the first indication information includes a first indication field and a second indication field, wherein the first indication field is used to indicate the UL common TCI state or the UL&DL common TCI state, the second indication field is used to indicate DL common TCI state or UL&DL common TCI state.
  • the first indication field and the second indication field are located in the same DCI format.
  • the first indication field and the second indication field are different.
  • the first indication field and the second indication field are the same.
  • the first indication field and the second indication field are the same, and the first indication field and the second indication field are represented by different bits.
  • the first indication field and the second indication field are the same, and the first indication field and the second indication field are represented by different bit values of the same bit. .
  • the value of the first bit is used to represent the first indication field
  • the value of the second bit is used to represent the second indication field.
  • the first indication field and the second indication field are located in different DCI formats.
  • the first indication field and/or the second indication field may be one or a combination of the following: an indication field for the TCI indicated by the PDSCH dedicated beam in DCI signaling; an SRS resource indicator in DCI signaling; and The newly added indication field in DCI signaling.
  • the DCI sent once is used to indicate the DL common TCI state or the UL common TCI state or the UL&DL common TCI state.
  • Fig. 6 is a flowchart showing a beam indication method according to an exemplary embodiment. As shown in Fig. 6 , the beam indication method is used in a network device. Other methods are performed together; the method includes the following steps.
  • step S51 send second indication information, where the second indication information is used to indicate the channel and/or reference signal to which the common TCI state is applicable.
  • the second indication information may be RRC signaling or MAC CE signaling.
  • the terminal indicates through RRC signaling and/or MAC CE signaling that the DL common TCI state is used to indicate which beams for downlink transmission. And/or, through RRC signaling and/or MAC CE signaling, the UL common TCI state is indicated for indicating which uplink transmission beams are. And/or, the second indication information may further indicate that the uplink and downlink general transmission configuration indication status is used to indicate which uplink and downlink transmission beams are.
  • the common TCI state is indicated for a single or multiple TRPs, that is, the common TCI state can be indicated by the first indication information for a single or multiple TRPs. That is, one or more common TCI states are TCI states of the same TRP. Or one or more common TCI states are TCI states of multiple TRPs.
  • FIG. 7 is a flow chart of a beam indication method according to an exemplary embodiment. As shown in FIG. 7 , the beam indication method is used in a network device, and the method can be executed alone or in combination with the embodiments of the present disclosure. Other methods are performed together; the method includes the following steps.
  • step S61 send third indication information, where the third indication information is used to indicate that the first indication information is used to indicate the common TCI state of one or more TRPs.
  • the third indication information is used to indicate that the first indication information is used to indicate the common TCI state of a single TRP, that is, to indicate at most one DL common TCI state, at most one UL common TCI state, and at most one UL&DL common TCI state.
  • the third indication information is used to indicate that the first indication information is used to indicate multiple TRPs, it may be necessary to indicate multiple DL common TCI states and/or multiple UL common TCI states, or multiple UL&DL common TCI states.
  • one UL&DL common TCI state can be indicated through the indication information, or the DL common TCI state and the UL common TCI state are indicated separately. It can also be understood that the network device sends fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate at least one of the UL&DL common TCI state, the DL common TCI state, and the UL common TCI state.
  • the fourth indication information may be RRC signaling and/or MAC signaling.
  • the beam indication method provided by the embodiments of the present disclosure reduces signaling overhead through the common beam indication method, and implements separate indication of DL common beam and UL common beam, as well as a dynamic indication method of DL common TCI state and UL common TCI state. Among them, including the DCI format corresponding to the current DL common beam and UL common beam, the indication field in the DCI signaling, and the indication meaning of the code point of the DCI signaling, etc.
  • the beam indication method provided by the present disclosure the reliability of DCI signaling is improved and the signaling overhead of beam indication is reduced.
  • the beam indication method applied to the network device provided by the embodiment of the present disclosure is similar to the terminal for the common beam indication method, and the similarities are not repeated here.
  • the beam indication method provided by the embodiments of the present disclosure can be applied to an implementation process in which a terminal and a network device interact to implement beam indication.
  • the terminal and the network device each have the relevant functions to implement the above-mentioned embodiments, which will not be repeated here.
  • an embodiment of the present disclosure also provides a beam pointing device.
  • the beam pointing device provided by the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for executing each function.
  • the embodiments of the present disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 8 is a block diagram of a beam indicating apparatus according to an exemplary embodiment.
  • the beam pointing device 100 is applied to a terminal, and includes a receiving unit 101 .
  • the receiving unit 101 is configured to receive first indication information, where the first indication information is used to indicate one or more general transmission configuration indication states, and the general transmission configuration indication states include uplink and downlink general transmission configuration indication states applicable to uplink and downlink, Or the uplink general transmission configuration indication state applicable to the uplink and/or the downlink general transmission configuration indication state applicable to the downlink.
  • the first indication information includes a first indication field and/or a second indication field
  • the first indication field is used to indicate the uplink general transmission configuration indication status or the uplink and downlink general transmission configuration indication status
  • the second indication field is used for In order to indicate the downlink general transmission configuration indication state or the uplink and downlink general transmission configuration indication state.
  • the first indication field and the second indication field are located in the same downlink control information DCI format.
  • the first indication field and the second indication field are different.
  • the first indication field and the second indication field are the same.
  • the first indication field and the second indication field are represented by different bits.
  • the first indication field and the second indication field are represented by different bit values of the same bit.
  • the first indication field and the second indication field are located in different downlink control information DCI formats.
  • the first indication field and/or the second indication field is one or a combination of the following:
  • the indication field used for the transmission configuration indication of the dedicated beam indication of the physical downlink shared channel In the downlink control signaling, the indication field used to indicate the sounding reference signal resource indication. and a new indication field in the downlink control signaling.
  • the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.
  • the receiving unit 101 is further configured to: receive second indication information, where the second indication information is used to indicate a channel and/or a reference signal to which the general transmission configuration indication state is applicable.
  • the one or more general transmission configuration indication states are transmission configuration indication states of the same transmission reception point.
  • the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.
  • the receiving unit 101 is further configured to: receive third indication information, where the third indication information is used to indicate that the first indication information is used to indicate the general transmission configuration indication state of one or more transmission reception points.
  • the receiving unit 101 is further configured to: receive fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate an uplink and downlink general transmission configuration indication state, an uplink general transmission configuration indication At least one of the status and the downstream general transmission configuration indication status.
  • Fig. 9 is a block diagram of a beam indicating apparatus according to an exemplary embodiment.
  • the beam indicating apparatus 200 is applied to network equipment, and the beam indicating apparatus 200 includes a sending unit 201 .
  • the sending unit 201 is configured to send first indication information, where the first indication information is used to indicate one or more general transmission configuration indication states, and the general transmission configuration indication states include uplink and downlink general transmission configuration indication states applicable to uplink and downlink, Or the uplink general transmission configuration indication state applicable to the uplink and/or the downlink general transmission configuration indication state applicable to the downlink.
  • the first indication information includes a first indication field and/or a second indication field
  • the first indication field is used to indicate the uplink general transmission configuration indication status or the uplink and downlink general transmission configuration indication status
  • the second indication field is used for In order to indicate the downlink general transmission configuration indication state or the uplink and downlink general transmission configuration indication state.
  • the first indication field and the second indication field are located in the same downlink control information DCI format.
  • the first indication field and the second indication field are different.
  • the first indication field and the second indication field are the same.
  • the first indication field and the second indication field are represented by different bits.
  • the first indication field and the second indication field are represented by different bit values of the same bit.
  • the first indication field and the second indication field are located in different downlink control information DCI formats.
  • the first indication field and/or the second indication field is one or a combination of the following:
  • the indication field used for the transmission configuration indication of the dedicated beam indication of the physical downlink shared channel In the downlink control signaling, the indication field used to indicate the sounding reference signal resource indication. and a new indication field in the downlink control signaling.
  • the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.
  • the sending unit 201 is further configured to: send second indication information, where the second indication information is used to indicate a channel and/or a reference signal to which the general transmission configuration indication state is applicable.
  • the one or more general transmission configuration indication states are transmission configuration indication states of the same transmission reception point.
  • the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.
  • the sending unit 201 is further configured to: send third indication information, where the third indication information is used to indicate that the first indication information is used to indicate the general transmission configuration indication state of one or more transmission receiving points.
  • the sending unit 201 is further configured to: send fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate an uplink and downlink general transmission configuration indication state, an uplink general transmission configuration indication At least one of the status and the downstream general transmission configuration indication status.
  • Fig. 10 is a block diagram of an apparatus for beam indication according to an exemplary embodiment.
  • apparatus 300 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • apparatus 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and Communication component 316 .
  • the processing component 302 generally controls the overall operation of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to perform all or some of the steps of the methods described above. Additionally, processing component 302 may include one or more modules that facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302 .
  • Memory 304 is configured to store various types of data to support operations at device 300 . Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, and the like. Memory 304 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power component 306 provides power to various components of device 300 .
  • Power components 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 300 .
  • Multimedia component 308 includes screens that provide an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • the multimedia component 308 includes a front-facing camera and/or a rear-facing camera. When the apparatus 300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 310 is configured to output and/or input audio signals.
  • audio component 310 includes a microphone (MIC) that is configured to receive external audio signals when device 300 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 304 or transmitted via communication component 316 .
  • audio component 310 also includes a speaker for outputting audio signals.
  • the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 314 includes one or more sensors for providing status assessment of various aspects of device 300 .
  • the sensor assembly 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, and the sensor assembly 314 can also detect a change in the position of the device 300 or a component of the device 300 , the presence or absence of user contact with the device 300 , the orientation or acceleration/deceleration of the device 300 and the temperature change of the device 300 .
  • Sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 316 is configured to facilitate wired or wireless communication between apparatus 300 and other devices.
  • Device 300 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 304 including instructions, executable by the processor 320 of the apparatus 300 to perform the method described above.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • Fig. 11 is a block diagram of an apparatus for beam indication according to an exemplary embodiment.
  • apparatus 400 may be provided as a network device.
  • apparatus 400 includes a processing component 422, which further includes one or more processors, and a memory resource, represented by memory 432, for storing instructions executable by processing component 422, such as an application program.
  • An application program stored in memory 432 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above-described methods.
  • Device 400 may also include a power supply assembly 426 configured to perform power management of device 400 , a wired or wireless network interface 450 configured to connect device 400 to a network, and an input output (I/O) interface 458 .
  • Device 400 may operate based on an operating system stored in memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • a non-transitory computer-readable storage medium including instructions such as a memory 432 including instructions, executable by the processing component 422 of the apparatus 400 to perform the method described above is also provided.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from one another, and do not imply a particular order or level of importance. In fact, the expressions “first”, “second” etc. are used completely interchangeably.
  • 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, without departing from the scope of the present disclosure.

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Abstract

本公开是关于一种波束指示方法、波束指示装置及存储介质。其中，网络设备发送第一指示信息，终端接收第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。通过本公开可以实现传输配置指示状态的动态指示，并减少信令开销。

Description

波束指示方法、波束指示装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及波束指示方法、波束指示装置及存储介质。
背景技术
在新无线技术(New Radio，NR)中，例如通信频段在frequency range 2时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束(beam)的发送和接收。
相关技术中，物理下行控制信道(physical downlink control channel，PDCCH)、物理下行共享信道(physical downlink shared channel，PDSCH)、物理上行共享信道(physical uplink shared channel，PUSCH)、物理上行控制信道(physical uplink control channel，PUCCH)以及各个上下行参考信号等的波束是独立指示的。而且PDCCH和PUCCH使用媒体接入控制(medium access control，MAC)控制单元(control element，CE)来激活波束。而PDSCH和PUSCH通过下行控制信息(Downlink Control Information，DCI)信令来指示其各自的波束。目前，为了减少信令开销，使用通用波束(common beam)进行指示。common beam可以用于终端的上行和下行的信道和/或参考信号的指示。然而，如何进行common beam的指示，仍有待研究。
发明内容
为克服相关技术中存在的问题，本公开提供一种波束指示方法、波束指示装置及存储介质。
根据本公开实施例的第一方面，提供一种波束指示方法，应用于终端，所述波束指示方法包括：接收第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
一种实施方式中，所述第一指示信息包括第一指示域和/或第二指示域，所述第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，所述第二指示域用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述第一指示域和所述第二指示域位于同一下行控制信息DCI格式。
一种实施方式中，所述第一指示域和所述第二指示域不同。
一种实施方式中，所述第一指示域和所述第二指示域相同。
一种实施方式中，所述第一指示域和所述第二指示域通过不同比特位表征。
一种实施方式中，所述第一指示域和所述第二指示域通过同一比特位的不同比特位取值表征。
一种实施方式中，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系；所述第一比特位取值用于表征所述第一指示域，所述第二比特位取值用于表征所述第二指示域。
一种实施方式中，所述第一指示域和所述第二指示域位于不同下行控制信息DCI格式。
一种实施方式中，所述第一指示域和/或所述第二指示域为以下之一或组合：
下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域；下行控制信令中用于指示探测参考信号资源指示的指示域；以及下行控制信令中新增指示域。
一种实施方式中，单次发送的下行控制信令用于指示上行通用传输配置指示状态或下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述波束指示方法还包括：接收第二指示信息，所述第二指示信息用于指示所述通用传输配置指示状态所适用的信道和/或参考信号。
一种实施方式中，所述一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
一种实施方式中，所述一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
一种实施方式中，所述波束指示方法还包括：
接收第三指示信息，所述第三指示信息用于指示所述第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
接收第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状态和下行通用传输配置指示状态中的至少一项。
根据本公开实施例第二方面，提供一种波束指示方法，应用于网络设备，所述波束指示方法包括：发送第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
一种实施方式中，所述第一指示信息包括第一指示域和/或第二指示域，所述第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，所述第二指示域 用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述第一指示域和所述第二指示域位于同一下行控制信息DCI格式。
一种实施方式中，所述第一指示域和所述第二指示域不同。
一种实施方式中，所述第一指示域和所述第二指示域相同。
一种实施方式中，所述第一指示域和所述第二指示域通过不同比特位表征。
一种实施方式中，所述第一指示域和所述第二指示域通过同一比特位的不同比特位取值表征。
一种实施方式中，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系；所述第一比特位取值用于表征所述第一指示域，所述第二比特位取值用于表征所述第二指示域。
一种实施方式中，所述第一指示域和所述第二指示域位于不同下行控制信息DCI格式。
一种实施方式中，所述第一指示域和/或所述第二指示域为以下之一或组合：
下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域；下行控制信令中用于指示探测参考信号资源指示的指示域；以及下行控制信令中新增指示域。
一种实施方式中，单次发送的下行控制信令用于指示上行通用传输配置指示状态或下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述波束指示方法还包括：发送第二指示信息，所述第二指示信息用于指示所述通用传输配置指示状态所适用的信道和/或参考信号。
一种实施方式中，所述一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
一种实施方式中，所述一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
一种实施方式中，所述波束指示方法还包括：发送第三指示信息，所述第三指示信息用于指示所述第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
一种实施方式中，所述波束指示方法还包括：发送第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状态和下行通用传输配置指示状态中的至少一项。
根据本公开实施例第三方面，提供一种波束指示装置，应用于终端，所述波束指示装置包括：接收单元，被配置为接收第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用 传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
一种实施方式中，所述第一指示信息包括第一指示域和/或第二指示域，所述第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，所述第二指示域用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述第一指示域和所述第二指示域位于同一下行控制信息DCI格式。
一种实施方式中，所述第一指示域和所述第二指示域不同。
一种实施方式中，所述第一指示域和所述第二指示域相同。
一种实施方式中，所述第一指示域和所述第二指示域通过不同比特位表征。
一种实施方式中，所述第一指示域和所述第二指示域通过同一比特位的不同比特位取值表征。
一种实施方式中，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系；所述第一比特位取值用于表征所述第一指示域，所述第二比特位取值用于表征所述第二指示域。
一种实施方式中，所述第一指示域和所述第二指示域位于不同下行控制信息DCI格式。
一种实施方式中，所述第一指示域和/或所述第二指示域为以下之一或组合：
下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域；下行控制信令中用于指示探测参考信号资源指示的指示域；以及下行控制信令中新增指示域。
一种实施方式中，单次发送的下行控制信令用于指示上行通用传输配置指示状态或下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述接收单元还用于：接收第二指示信息，所述第二指示信息用于指示所述通用传输配置指示状态所适用的信道和/或参考信号。
一种实施方式中，所述一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
一种实施方式中，所述一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
一种实施方式中，所述接收单元还用于：接收第三指示信息，所述第三指示信息用于指示所述第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
一种实施方式中，所述接收单元还用于：接收第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状 态和下行通用传输配置指示状态中的至少一项。
根据本公开实施例第四方面，提供一种波束指示装置，应用于网络设备，所述波束指示装置包括：发送单元，被配置为发送第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
一种实施方式中，所述第一指示信息包括第一指示域和/或第二指示域，所述第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，所述第二指示域用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述第一指示域和所述第二指示域位于同一下行控制信息DCI格式。
一种实施方式中，所述第一指示域和所述第二指示域不同。
一种实施方式中，所述第一指示域和所述第二指示域相同。
一种实施方式中，所述第一指示域和所述第二指示域通过不同比特位表征。
一种实施方式中，所述第一指示域和所述第二指示域通过同一比特位的不同比特位取值表征。
一种实施方式中，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系；所述第一比特位取值用于表征所述第一指示域，所述第二比特位取值用于表征所述第二指示域。
一种实施方式中，所述第一指示域和所述第二指示域位于不同下行控制信息DCI格式。
一种实施方式中，所述第一指示域和/或所述第二指示域为以下之一或组合：
下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域；下行控制信令中用于指示探测参考信号资源指示的指示域；以及下行控制信令中新增指示域。
一种实施方式中，单次发送的下行控制信令用于指示上行通用传输配置指示状态或下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，所述发送单元还用于：发送第二指示信息，所述第二指示信息用于指示所述通用传输配置指示状态所适用的信道和/或参考信号。
一种实施方式中，所述一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
一种实施方式中，所述一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
一种实施方式中，所述发送单元还用于：发送第三指示信息，所述第三指示信息用于指示所述第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
一种实施方式中，所述发送单元还用于：发送第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状态和下行通用传输配置指示状态中的至少一项。
根据本公开实施例第五方面，提供一种波束指示装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第一方面或者第一方面任意一种实施方式中所述的波束指示方法。
根据本公开实施例第六方面，提供一种波束指示装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第二方面或者第二方面任意一种实施方式中所述的波束指示方法。
根据本公开实施例第七方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行第一方面或者第一方面任意一种实施方式中所述的波束指示方法。
根据本公开实施例第八方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够第二方面或者第二方面任意一种实施方式中所述的波束指示方法。
本公开的实施例提供的技术方案可以包括以下有益效果：网络设备发送第一指示信息，终端接收第一指示信息。其中，第一指示信息用于指示一个或多个通用传输配置指示状态，通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态，进而实现了对通用传输配置指示状态的指示，节省信令开销。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种无线通信系统示意图。
图2是根据一示例性实施例示出的一种波束指示方法的流程图。
图3是根据一示例性实施例示出的一种波束指示方法的流程图。
图4是根据一示例性实施例示出的一种波束指示方法的流程图。
图5是根据一示例性实施例示出的一种波束指示方法的流程图。
图6是根据一示例性实施例示出的一种波束指示方法的流程图。
图7是根据一示例性实施例示出的一种波束指示方法的流程图。
图8是根据一示例性实施例示出的一种波束指示装置框图。
图9是根据一示例性实施例示出的一种波束指示装置框图。
图10是根据一示例性实施例示出的一种用于波束指示的装置的框图。
图11是根据一示例性实施例示出的一种用于波束指示的装置的框图。
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、本公开的一些方面相一致的装置和方法的例子。
本公开实施例提供的波束指示方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括终端和网络设备。终端通过无线资源与网络设备相连接，并进行数据的发送与接收。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数目和终端数目不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备 可以是：基站、演进型基站(evolved node B，eNB)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者传输接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
本公开中网络设备与终端之间基于波束进行数据传输。基于波束进行数据传输过程中，为了减少信令开销，使用common beam进行信道和/或参考信号的指示。相关技术中，common beam可以是分开指示上行传输或下行传输，或者上行传输和下行传输联合指示。例如，网络设备如果指示用于下行的common beam，那么该common beam可以用于指示终端的PDSCH和所有PDCCH或一部分PDCCH(比如终端专用PDCCH(UE dedicated PDCCH))。网络设备如果指示一个用于上行的common beam，那么该common beam可以用于指示终端的PUSCH和所有PUCCH或一部分PUCCH。网络设备如果指示一个common beam，那么该beam可以用于终端的上行和下行的信道和/或参考信号。
其中，common beam是用于哪些信道和/或参考信号的指示，是通过信令指示或是标准规定的，终端是能获知的。然而，common beam如何指示信道和/或参考信号仍有待研究。
本公开实施例提供一种波束指示方法，通过指示信息指示一个或多个通用传输配置指示状态(common transmission configuration indication state，common TCI state)，实现common beam的指示。
一种实施方式中，common TCI state包括适用于上行(uplink，UL)和下行(downlink，DL)的UL&DL common TCI state，或适用于UL的UL common TCI state和/或适用于DL的DL common TCI state。
可以理解为是，本公开实施例中涉及的common TCI state可以理解为是与common  beam对应。其中，本公开实施例中，common beam与common TCI state有时会互换使用，DL common beam与DL common TCI state有时会互换使用，UL common beam和UL common TCI state有时会互换使用，UL common beam也可以与UL common SpatialRelationInfo互换使用，本领域技术人员应理解其含义一致性。
其中，本公开实施例中为描述方便，将用于指示common TCI state的指示信息称为第一指示信息。
图2是根据一示例性实施例示出的一种波束指示方法的流程图，如图2所示，波束指示方法用于终端中，包括以下步骤。
在步骤S11中，接收第一指示信息，第一指示信息用于指示一个或多个common TCI state。
其中，common TCI state包括适用于UL和DL的UL&DL common TCI state。
其中，common TCI state可以是适用于UL的UL common TCI state，或common TCI state可以是适用于DL的DL common TCI state。
一示例中，第一指示信息可以用于指示M个DL common TCI state和/或N个UL common TCI state，或L个UL&DL common TCI state。其中，M大于等于1，N大于等于1，L大于等于1。
可以理解的是，本公开实施例中，M＝1，N＝1，L＝1对应单TRP的common TCI state的指示。
本公开实施例提供的波束指示方法，通过第一指示信息的指示域指示UL common TCI state和/或DL common TCI state，或UL&DL common TCI state。当同一TCI state可以适用于上行和下行时，第一指示信息需要指示UL&DL common TCI state即可。当上行和下行需要使用不同的common TCI state时，第一指示信息的单次发送可以指示DL common beam，或UL common beam，或DL common beam和UL common beam一起。
一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第一指示域。其中，第一指示域用于指示UL common TCI state。
另一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第一指示域。其中，第一指示域用于指示UL&DL common TCI state。
又一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第二指示域。其中，第二指示域用于指示DL common TCI state。又一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第二指示域。其中，第二指示域用于指示UL&DL common TCI state。
再一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第一指示域和第二指示域，其中，第一指示域用于指示UL common TCI state，第二指示域用于指示DL common TCI state。
本公开实施例中讨论的第一指示域和第二指示域以第一指示域用于指示UL common TCI state，第二指示域用于指示DL common TCI state为例来说明。本公开实施例中，由于UL&DL common TCI state不会单独与DL common beam一起指示，且UL&DL common TCI state不会单独与UL common beam一起指示，所以第一指示域在不需要单独指示UL common beam时也可以用于指示UL&DL common TCI state；同理，第二指示域在不需要单独指示DL common beam时也可以用于指示UL&DL common TCI state。也就是说，当只指示一个UL&DL common TCI state时，只需要一个指示域。
本公开实施例提供的波束指示方法，第一指示域和第二指示域可以是在同一个DCI格式(DCI format)中，也可以是在不同的DCI format中。
本公开实施例提供的波束指示方法中，第一指示域和第二指示域位于同一DCI格式(DCI format)中，第一指示域和第二指示域不同，即DL common TCI state和UL common TCI state的指示域不同。
一示例中，DL common TCI state和UL common TCI state的指示域不同。
其中，第一指示域和/或第二指示域，可以是DCI信令中用于PDSCH专用beam指示的传输配置指示(transmission configuration indication，TCI)的指示域。DCI信令中用于指示探测参考信号(sounding reference signal，SRS)资源指示的指示域，英文简称可以是SRS resource indicator。以及DCI信令中新增的指示域。例如，在用于下行调度的DCI格式中，用于指示DL common TCI state的第二指示域复用已有DCI信令中用于PDSCH专用beam指示的传输配置指示TCI的指示域。用于指示UL common TCI state的第一指示域，可以是在DCI中新增的指示域。即，在DCI中添加一个新的用于指示UL common beam的指示域。再例如可以是，在用于下行调度或上行调度的DCI格式中的DCI中添加不同的指示域，DL common TCI state和UL common TCI state分别通过添加新的指示域，以分别指示DL common beam和UL common beam。再例如，在用于上行调度的DCI格式中，用于指示UL common TCI state的第一指示域复用已有DCI信令中用于SRS资源指示的指示域，用于指示DL common TCI state的第二指示域，可以是在DCI中新增的指示域。
一种实施方式中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域位于同一DCI格式，第一指示域和第二指示域相同，即DL common TCI state和UL common TCI state的指示域相同。
一示例中，DL common TCI state和UL common TCI state的指示域相同，第一指示域和第二指示域通过不同比特位表征。
第一指示域和/或第二指示域可以是以下之一或组合：DCI信令中用于PDSCH专用beam指示的传输配置指示(transmission configuration indication，TCI)的指示域；DCI信令中用于指示探测参考信号(sounding reference signal，SRS)资源指示的指示域，英文简称可以是SRS resource indicator；以及DCI信令中新增的指示域。例如，DL common TCI state和UL common TCI state的指示域复用已有DCI信令中用于PDSCH专用beam指示的TCI指示域，比特数可以大于或等于已有比特数3bit，但DL common TCI state和UL common TCI state占用指示域中不同的比特位。
一种实施方式中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域位于同一DCI格式，第一指示域和第二指示域相同，第一指示域和第二指示域通过同一比特位的不同比特位取值表征。第一指示域和/或第二指示域可以是以下之一或组合：DCI信令中用于PDSCH专用beam指示的TCI的指示域；DCI信令中SRS resource indicator；以及DCI信令中新增的指示域。例如，DL common TCI state和UL common TCI state的指示域复用已有DCI信令中用于PDSCH专用beam指示的TCI指示域，且DL common TCI state和UL common TCI state占用指示域中相同的比特位，并通过该相同比特位的不同比特值即codepoint表征第一指示域和第二指示域。需要说明的是，即使是复用PDSCH专用beam指示的TCI的指示域或复用SRS resource indicator，其比特数可以在已有比特数基础上保持不变或进行增加。
一种示例中，本公开实施例提供的波束指示方法中，通过不同的比特位取值对应的比特码字指示DL common TCI state和UL common TCI state。第一指示域和/或第二指示域可以是以下之一或组合：DCI信令中用于PDSCH专用beam指示的TCI的指示域；DCI信令中SRS resource indicator；以及DCI信令中新增的指示域。例如，第一比特位取值用于表征第一指示域，第二比特位取值用于表征第二指示域。第一比特位取值对应的比特码字(code point)与UL common TCI state之间具有第一映射关系，和/或第二比特位取值对应的code point与DL common TCI state之间具有第二映射关系，也可以第三比特位取值对应的比特码字与UL common TCI state和DL common TCI state具有第三映射关系。
一示例中，Bit值对应的code point与DL common TCI state和/或UL common TCI state有映射关系，该映射关系由媒体接入控制(Medium Access Control，MAC)控制单元(Control Element，CE)指示。
比如指示域包含3bit，code point为000对应指示DL common TCI state#0和UL common  TCI state#1，001对应指示DL common TCI state#2，010对应指示UL common TCI state#3，011对应指示DL common TCI state#4和UL common TCI state#5……这里DL common TCI state和UL common TCI state的编号可以联合编号或独立编号，不作限制。
本公开实施例提供的波束指示方法中，单次发送的DCI用于指示DL common TCI state或UL common TCI state，即同一DCI信令在第一时间内可以指示DL common TCI state或UL common TCI state。其中，单次发送的DCI指示的是DL common beam还是UL common beam，采用隐式指示方式或显示指示方式进行指示。
其中，可以理解为是发送一次该DCI信令不能同时指示DL common beam和UL common beam，当然有下行数据需要传输时更新下行common beam、有上行数据需要传输时更新上行common beam也是合理的。
一示例中，采用隐式指示方式进行指示单次发送的DCI指示的是DL common beam还是UL common beam，例如可以是用于下行调度的DCI format的DCI信令中指示了下行资源调度，则是用于指示DL common beam；若没指示下行资源调度，则可以理解为是用于指示UL common beam。或例如可以是用于下行调度的DCI format的DCI信令中指示的是DL common beam，用于上行调度的DCI format的DCI信令中指示的是UL common beam。
本公开实施例提供的波束指示方法中，第一指示域和第二指示域位于不同的DCI format中，即，DL common TCI state和UL common TCI state的指示域在不同的DCI format中。
一示例中，用于指示DL common TCI state的指示域在用于下行调度的DCI format中，可以复用已有DCI信令中用于PDSCH专用beam指示的TCI指示域或添加新的指示域。用于指示UL common TCI state的指示域在用于上行调度的DCI format中，可以复用已有DCI信令中的SRS resource indicator，或添加一个新的指示域，该新的指示域用于指示UL common beam。
本公开实施例提供的波束指示方法中，第一指示域和第二指示域位于不同的DCI format，单次发送的DCI用于指示DL common TCI state或UL common TCI state，即同一DCI信令在第一时间内可以指示DL common TCI state或UL common TCI state。其中，可以是在有下行传输时指示DL common beam，在有上行传输时，指示UL common beam。
本公开实施例提供的波束指示方法中，可以通过指示信息指示common TCI state所适用的信道和/或参考信号。
其中，为描述方便，将用于指示common TCI state所适用的信道和/或参考信号的指示信息称为第二指示信息。
图3是根据一示例性实施例示出的一种波束指示方法的流程图，如图3所示，波束指示方法用于终端中，该方法可以单独被执行或是结合本公开实施例中的其他方法一起被执行；该方法包括以下步骤。
在步骤S21中，接收第二指示信息，第二指示信息用于指示common TCI state所适用的信道和/或参考信号。
其中，第二指示信息可以是无线资源控制(Radio Resource Control，RRC)信令，也可以是MAC CE信令。
一示例中，终端通过RRC信令和/或MAC CE信令指示DL common TCI state用于指示哪些下行传输的beam。比如通过RRC信令和/或MAC CE信令指示DL common TCI state用于指示PDCCH、PDSCH、物理广播信道(Physical broadcast channel，PBCH)、同步信号块(Synchronization Signal Block，SSB)、解调参考信号(Demodulation Reference Signal，DMRS)，信道状态信息参考信号(channel state information reference signal，CSI-RS)，定位参考信号(Positioning reference signals，PRS)、跟踪参考信号(tracking reference signal，TRS)等中的至少两项的beam。再比如，终端通过RRC信令和/或MAC CE信令指示参考信号(比如同样为CSI-RS)，还可以指示其用途，比如是用于波束测量的CSI-RS，还是用于信道状态信息测量的CSI-RS等。再比如，对于某种信道，还可以指示是适用于该信道的所有传输，还是只适用于UE specific的部分。比如PDCCH，还可以指示是适用于所有PDCCH，还是只适用于UE specific的PDCCH。
另一示例中，当用于上行传输时，第二指示信息指示UL common TCI state用于指示哪些上行传输的beam。比如通过RRC信令和/或MAC CE信令指示PUCCH、PUSCH，物理随机接入信道(Physical Random Access Channel，PRACH)、SRS，DMRS中的至少两项的beam。同样，对于参考信号，比如同样为SRS，还可以指示其用途，比如是用于波束测量的SRS、还是用于codebook based的信道状态信息测量的SRS、还是用non-codebook based的信道状态信息测量的SRS，还是用于天线切换的SRS、还是用于定位测量的SRS等。
另一示例性实施例中，第二指示信息还可以指示上下行通用传输配置指示状态用于指示哪些上行和下行传输的beam。比如通过RRC信令和/或MAC CE信令指示上下行通用传输配置指示状态用于指示PDCCH、PDSCH、PUCCH、PUSCH，物理随机接入信道(Physical Random Access Channel，PRACH)、物理广播信道(Physical broadcast channel，PBCH)、同步信号块(Synchronization Signal Block，SSB)、解调参考信号(Demodulation Reference Signal，DMRS)，信道状态信息参考信号(channel state information reference signal，CSI-RS)，定位参考信号(Positioning reference signals，PRS)、跟踪参考信号(tracking  reference signal，TRS)、SRS等中的至少两项的beam。再比如，终端通过RRC信令和/或MAC CE信令指示参考信号(比如同样为CSI-RS)，还可以指示其用途，比如是用于波束测量的CSI-RS，还是用于信道状态信息测量的CSI-RS等。比如同样为SRS，还可以指示其用途，比如是用于波束测量的SRS、还是用于codebook based的信道状态信息测量的SRS、还是用non-codebook based的信道状态信息测量的SRS，还是用于天线切换的SRS、还是用于定位测量的SRS等。再比如，对于某种信道，还可以指示是适用于该信道的所有传输，还是只适用于UE specific的部分。比如PDCCH，还可以指示是适用于所有PDCCH，还是只适用于UE specific的PDCCH。
本公开实施例提供的波束指示方法，针对单个或多个TRP进行common TCI state的指示，即可以针对单个或多个TRP通过第一指示信息指示common TCI state。即，一个或多个common TCI state为同一TRP的TCI state。或者一个或多个common TCI state为多个TRP的TCI state。
本公开实施例提供的波束指示方法中，由指示信息指示第一指示信息用于指示一个TRP的common TCI state，或者指示第一指示信息用于指示多个TRP的common TCI state。
为描述方便，将用于指示第一指示信息指示一个或多个TRP的common TCI state的指示信息称为第三指示信息。
图4是根据一示例性实施例示出的一种波束指示方法的流程图，如图4所示，波束指示方法用于终端中，该方法可以单独被执行或是结合本公开实施例中的其他方法一起被执行；该方法包括以下步骤。
在步骤S31中，接收第三指示信息，第三指示信息用于指示第一指示信息用于指示一个或多个TRP的common TCI state。
本公开实施例提供的波束指示方法中，第三指示信息用于指示第一指示信息用于指示单个TRP的common TCI state，即最多指示一个DL common TCI state、最多一个UL common TCI state、最多一个UL&DL common TCI state。当第三指示信息用于指示第一指示信息用于指示多个TRP时，可能需要指示多个DL common TCI state，多个UL common TCI state，多个UL&DL common TCI state。
一示例中，第三指示信息指示第一指示信息用于指示多个DL common TCI state的指示域，与单个DL common TCI state的指示域相同，其指示域的code point对应的是一个还是两个DL common TCI state，由MAC CE来给出code point与一个或两个DL common TCI state的对应关系，同前所述类似。
另一示例中，第三指示信息指示第一指示信息用于指示多个UL common TCI state的指 示域，与单个UL common TCI state的指示域相同，其指示域的code point对应的是一个还是两个UL common TCI state，由MAC CE来给出code point与一个或两个UL common TCI state的对应关系，同前所述类似。
另一示例中，第三指示信息指示第一指示信息用于指示多个UL&DL common TCI state的指示域，与单个UL&DL common TCI state的指示域相同，其指示域的code point对应的是一个还是两个UL&DL common TCI state，由MAC CE来给出code point与一个或两个UL&DL common TCI state的对应关系，同前所述类似。
本公开实施例提供的波束指示方法中，可以通过指示信息指示使用一个UL&DL common TCI state，还是使用DL common TCI state和UL common TCI state分开指示。也可以理解为是，终端接收第四指示信息，该第四指示信息用于指示第一指示信息用于指示UL&DL common TCI state、DL common TCI state和UL common TCI state中的至少一项。
一示例中，第四指示信息可以是RRC信令和/或MAC信令。
例如，RRC信令和/或MAC信令指示使用一个common TCI state，还是使用DL common TCI state和UL common TCI state分开指示。比如MAC CE信令必选激活X个TCI state，可选激活Y个TCI state，用于激活X个TCI state和Y个TCI state的比特位置不一样。当只激活这X个TCI state时，表示是common TCI state，即joint DL/UL beam indication，相当于X个TCI state中的每个TCI state都可以用于上行和下行。当也激活了Y个TCI state时，表示是separate DL/UL beam indication，而X个用于DL，Y个用于UL。X值和Y值可以一样。同时RRC和/或MAC信令指示不同情况下，DCI里面用于common TCI state指示的比特域位置和比特数的至少一项。
本公开实施例提供的波束指示方法，通过common beam指示方式，减少了信令开销，并实现DL common beam和UL common beam分开指示，以及DL common TCI state和UL common TCI state的动态指示方法。其中，包括DL common beam和UL common beam对应的DCI format、DCI信令中的指示域以及DCI信令的code point的指示含义等。通过本公开提供的波束指示方法，提高DCI信令的可靠性以及减少波束指示的信令开销。
图5是根据一示例性实施例示出的一种波束指示方法的流程图，如图5所示，波束指示方法用于网络设备中，包括以下步骤。
在步骤S41中，发送第一指示信息，第一指示信息用于指示一个或多个common TCI state。
其中，common TCI state包括适用于UL和DL的UL&DL common TCI state。
其中，common TCI state也可以是适用于UL的UL common TCI state，或common TCI  state也可以是适用于DL的DL common TCI state。
一种实施方式中，通过第一指示信息的指示域指示UL common TCI state和/或DL common TCI state，或UL&DL common TCI state。
一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第一指示域。其中，第一指示域用于指示UL common TCI state或UL&DL common TCI state。
另一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第二指示域。其中，第二指示域用于指示DL common TCI state或UL&DL common TCI state。
又一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示信息包括第一指示域和第二指示域，其中，第一指示域用于指示UL common TCI state或UL&DL common TCI state，第二指示域用于指示DL common TCI state或UL&DL common TCI state。
一种实施方式中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域位于同一DCI format中。
一种实施方式中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域不同。
一种实施方式中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域相同。
一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域相同，第一指示域和第二指示域通过不同比特位表征。
另一示例性实施例中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域相同，第一指示域和第二指示域通过同一比特位的不同比特位取值表征。
一种实施方式中，第一比特位取值用于表征第一指示域，第二比特位取值用于表征第二指示域。第一比特位取值对应的code point与UL common TCI state之间具有第一映射关系，和/或第二比特位取值对应的code point与DL common TCI state之间具有第二映射关系，和/或第三比特位取值对应的code point与UL common TCI state和DL common TCI state之间具有第三映射关系。
一种实施方式中，一种实施方式中，本公开实施例提供的波束指示方法中，第一指示域和第二指示域位于不同DCI format中。
一种实施方式中，第一指示域和/或第二指示域可以是以下之一或组合：DCI信令中用于PDSCH专用beam指示的TCI的指示域；DCI信令中SRS resource indicator；以及DCI信令中新增的指示域。
一种实施方式中，单次发送的DCI用于指示DL common TCI state或UL common TCI  state或UL&DL common TCI state。
图6是根据一示例性实施例示出的一种波束指示方法的流程图，如图6所示，波束指示方法用于网络设备中，该方法可以单独被执行或是结合本公开实施例中的其他方法一起被执行；该方法包括以下步骤。
在步骤S51中，发送第二指示信息，第二指示信息用于指示common TCI state所适用的信道和/或参考信号。
其中，第二指示信息可以是RRC信令，也可以是MAC CE信令。
一示例中，终端通过RRC信令和/或MAC CE信令指示DL common TCI state用于指示哪些下行传输的beam。和/或，通过RRC信令和/或MAC CE信令指示UL common TCI state用于指示哪些上行传输的beam。和/或，第二指示信息还可以指示上下行通用传输配置指示状态用于指示哪些上行和下行传输的beam。
本公开实施例提供的波束指示方法，针对单个或多个TRP进行common TCI state的指示，即可以针对单个或多个TRP通过第一指示信息指示common TCI state。即，一个或多个common TCI state为同一TRP的TCI state。或者一个或多个common TCI state为多个TRP的TCI state。
图7是根据一示例性实施例示出的一种波束指示方法的流程图，如图7所示，波束指示方法用于网络设备中，该方法可以单独被执行或是结合本公开实施例中的其他方法一起被执行；该方法包括以下步骤。
在步骤S61中，发送第三指示信息，第三指示信息用于指示第一指示信息用于指示一个或多个TRP的common TCI state。
其中，第三指示信息用于指示第一指示信息用于指示单个TRP的common TCI state，即最多指示一个DL common TCI state、最多一个UL common TCI state、最多一个UL&DL common TCI state。当第三指示信息用于指示第一指示信息用于指示多个TRP时，可能需要指示多个DL common TCI state和/或多个UL common TCI state，或多个UL&DL common TCI state。
本公开实施例提供的波束指示方法中，可以通过指示信息指示使用一个UL&DL common TCI state，还是使用DL common TCI state和UL common TCI state分开指示。也可以理解为是，网络设备发送第四指示信息，该第四指示信息用于指示第一指示信息用于指示UL&DL common TCI state、DL common TCI state和UL common TCI state中的至少一项。
一示例中，第四指示信息可以是RRC信令和/或MAC信令。
本公开实施例提供的波束指示方法，通过common beam指示方式，减少了信令开销， 并实现DL common beam和UL common beam分开指示，以及DL common TCI state和UL common TCI state的动态指示方法。其中，包括现DL common beam和UL common beam对应的DCI format、DCI信令中的指示域以及DCI信令的code point的指示含义等。通过本公开提供的波束指示方法，提高DCI信令的可靠性以及减少波束指示的信令开销。
可以理解的是，本公开实施例提供的应用于网络设备的波束指示方法，对于common beam指示方式与终端相类似，相同之处在此不再赘述。
进一步可以理解的是，本公开实施例提供的波束指示方法可以应用于终端和网络设备交互实现波束指示的实施过程。对于终端和网络设备交互实现波束指示的方法中，终端和网络设备各自具备实现上述实施例中的相关功能，在此不再赘述。
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例中可以配合前述的实施例使用，也可以是独立使用。无论是单独使用还是配合前述的实施例一起使用，其实现原理类似。本公开实施中，部分实施例中是以一起使用的实施方式进行说明的；当然，本领域内技术人员可以理解，这样的举例说明并非对本公开实施例的限定。
基于相同的构思，本公开实施例还提供一种波束指示装置。
可以理解的是，本公开实施例提供的波束指示装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图8是根据一示例性实施例示出的一种波束指示装置框图。参照图8，该波束指示装置100应用于终端，包括接收单元101。
接收单元101，被配置为接收第一指示信息，第一指示信息用于指示一个或多个通用传输配置指示状态，通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
一种实施方式中，第一指示信息包括第一指示域和/或第二指示域，第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，第二指示域用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，第一指示域和第二指示域位于同一下行控制信息DCI格式。
一种实施方式中，第一指示域和第二指示域不同。
一种实施方式中，第一指示域和第二指示域相同。
一种实施方式中，第一指示域和第二指示域通过不同比特位表征。
一种实施方式中，第一指示域和第二指示域通过同一比特位的不同比特位取值表征。
一种实施方式中，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系。第一比特位取值用于表征第一指示域，第二比特位取值用于表征第二指示域。
一种实施方式中，第一指示域和第二指示域位于不同下行控制信息DCI格式。
一种实施方式中，第一指示域和/或第二指示域为以下之一或组合：
下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域。下行控制信令中用于指示探测参考信号资源指示的指示域。以及下行控制信令中新增指示域。
一种实施方式中，单次发送的下行控制信令用于指示上行通用传输配置指示状态或下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，接收单元101还用于：接收第二指示信息，第二指示信息用于指示通用传输配置指示状态所适用的信道和/或参考信号。
一种实施方式中，一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
一种实施方式中，一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
一种实施方式中，接收单元101还用于：接收第三指示信息，第三指示信息用于指示第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
一种实施方式中，接收单元101还用于：接收第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状态和下行通用传输配置指示状态中的至少一项。
图9是根据一示例性实施例示出的一种波束指示装置框图。参照图9，该波束指示装置200应用于网络设备，波束指示装置200包括发送单元201。
发送单元201，被配置为发送第一指示信息，第一指示信息用于指示一个或多个通用传输配置指示状态，通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
一种实施方式中，第一指示信息包括第一指示域和/或第二指示域，第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，第二指示域用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，第一指示域和第二指示域位于同一下行控制信息DCI格式。
一种实施方式中，第一指示域和第二指示域不同。
一种实施方式中，第一指示域和第二指示域相同。
一种实施方式中，第一指示域和第二指示域通过不同比特位表征。
一种实施方式中，第一指示域和第二指示域通过同一比特位的不同比特位取值表征。
一种实施方式中，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系。第一比特位取值用于表征第一指示域，第二比特位取值用于表征第二指示域。
一种实施方式中，第一指示域和第二指示域位于不同下行控制信息DCI格式。
一种实施方式中，第一指示域和/或第二指示域为以下之一或组合：
下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域。下行控制信令中用于指示探测参考信号资源指示的指示域。以及下行控制信令中新增指示域。
一种实施方式中，单次发送的下行控制信令用于指示上行通用传输配置指示状态或下行通用传输配置指示状态或上下行通用传输配置指示状态。
一种实施方式中，发送单元201还用于：发送第二指示信息，第二指示信息用于指示通用传输配置指示状态所适用的信道和/或参考信号。
一种实施方式中，一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
一种实施方式中，一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
一种实施方式中，发送单元201还用于：发送第三指示信息，第三指示信息用于指示第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
一种实施方式中，发送单元201还用于：发送第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状态和下行通用传输配置指示状态中的至少一项。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图10是根据一示例性实施例示出的一种用于波束指示的装置的框图。例如，装置300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图10，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例包括用于在装置300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件308包括一个前置摄像头和/或后置摄像头。当装置300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由装置300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图11是根据一示例性实施例示出的一种用于波束指示的装置的框图。例如，装置400可以被提供为一网络设备。参照图11，装置400包括处理组件422，其进一步包括一个或多个处理器，以及由存储器432所代表的存储器资源，用于存储可由处理组件422的执行的指令，例如应用程序。存储器432中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件422被配置为执行指令，以执行上述方法。
装置400还可以包括一个电源组件426被配置为执行装置400的电源管理，一个有线或无线网络接口450被配置为将装置400连接到网络，和一个输入输出(I/O)接口458。 装置400可以操作基于存储在存储器432的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器432，上述指令可由装置400的处理组件422执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，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，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，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。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、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公开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 (38)

  1. 一种波束指示方法，其特征在于，应用于终端，所述波束指示方法包括：
    接收第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
  2. 根据权利要求1所述的波束指示方法，其特征在于，所述第一指示信息包括第一指示域和/或第二指示域，所述第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，所述第二指示域用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
  3. 根据权利要求2所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域位于同一下行控制信息DCI格式。
  4. 根据权利要求3所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域不同。
  5. 根据权利要求3所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域相同。
  6. 根据权利要求5所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域通过不同比特位表征。
  7. 根据权利要求5所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域通过同一比特位的不同比特位取值表征。
  8. 根据权利要求7所述的波束指示方法，其特征在于，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系。
  9. 根据权利要求2所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域位于不同下行控制信息DCI格式。
  10. 根据权利要求2至9中任意一项所述的波束指示方法，其特征在于，所述第一指示域和/或所述第二指示域为以下之一或组合：
    下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域；
    下行控制信令中用于指示探测参考信号资源指示的指示域；以及
    下行控制信令中新增指示域。
  11. 根据权利要求5至9中任意一项所述的波束指示方法，其特征在于，单次发送的 下行控制信令用于指示上下行通用传输配置指示状态或上行通用传输配置指示状态或下行通用传输配置指示状态。
  12. 根据权利要求1所述的波束指示方法，其特征在于，所述方法还包括：
    接收第二指示信息，所述第二指示信息用于指示所述通用传输配置指示状态所适用的信道和/或参考信号。
  13. 根据权利要求1至12中任意一项所述的波束指示方法，其特征在于，所述一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
  14. 根据权利要求13所述的波束指示方法，其特征在于，所述一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
  15. 根据权利要求14所述的波束指示方法，其特征在于，所述波束指示方法还包括：
    接收第三指示信息，所述第三指示信息用于指示所述第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
  16. 根据权利要求14所述的波束指示方法，其特征在于，所述波束指示方法还包括：
    接收第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状态和下行通用传输配置指示状态中的至少一项。
  17. 一种波束指示方法，其特征在于，应用于网络设备，所述波束指示方法包括：
    发送第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
  18. 根据权利要求17所述的波束指示方法，其特征在于，所述第一指示信息包括第一指示域和/或第二指示域，所述第一指示域用于指示上行通用传输配置指示状态或上下行通用传输配置指示状态，所述第二指示域用于指示下行通用传输配置指示状态或上下行通用传输配置指示状态。
  19. 根据权利要求18所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域位于同一下行控制信息DCI格式。
  20. 根据权利要求19所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域不同。
  21. 根据权利要求19所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域相同。
  22. 根据权利要求21所述的波束指示方法，其特征在于，所述第一指示域和所述第 二指示域通过不同比特位表征。
  23. 根据权利要求21所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域通过同一比特位的不同比特位取值表征。
  24. 根据权利要求23所述的波束指示方法，其特征在于，第一比特位取值对应的比特码字与上行通用传输配置指示状态之间具有第一映射关系，和/或第二比特位取值对应的比特位码字与下行通用传输配置指示状态之间具有第二映射关系。
  25. 根据权利要求18所述的波束指示方法，其特征在于，所述第一指示域和所述第二指示域位于不同下行控制信息DCI格式。
  26. 根据权利要求18至25中任意一项所述的波束指示方法，其特征在于，所述第一指示域和/或所述第二指示域为以下之一或组合：
    下行控制信令中用于物理下行共享信道专用波束指示的传输配置指示的指示域；
    下行控制信令中用于指示探测参考信号资源指示的指示域；以及
    下行控制信令中新增指示域。
  27. 根据权利要求21至25中任意一项所述的波束指示方法，其特征在于，单次发送的下行控制信令用于指示上行通用传输配置指示状态或下行通用传输配置指示状态或上下行通用传输配置指示状态。
  28. 根据权利要求17所述的波束指示方法，其特征在于，所述方法还包括：
    发送第二指示信息，所述第二指示信息用于指示所述通用传输配置指示状态所适用的信道和/或参考信号。
  29. 根据权利要求17至28中任意一项所述的波束指示方法，其特征在于，所述一个或多个通用传输配置指示状态为同一传输接收点的传输配置指示状态。
  30. 根据权利要求29所述的波束指示方法，其特征在于，所述一个或多个通用传输配置指示状态为多个传输接收点的传输配置指示状态。
  31. 根据权利要求30所述的波束指示方法，其特征在于，所述波束指示方法还包括：
    发送第三指示信息，所述第三指示信息用于指示所述第一指示信息用于指示一个或多个传输接收点的通用传输配置指示状态。
  32. 根据权利要求31所述的波束指示方法，其特征在于，所述波束指示方法还包括：
    发送第四指示信息，所述第四指示信息用于指示所述第一指示信息用于指示上下行通用传输配置指示状态、上行通用传输配置指示状态和下行通用传输配置指示状态中的至少一项。
  33. 一种波束指示装置，其特征在于，应用于终端，所述波束指示装置包括：
    接收单元，被配置为接收第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
  34. 一种波束指示装置，其特征在于，应用于网络设备，所述波束指示装置包括：
    发送单元，被配置为发送第一指示信息，所述第一指示信息用于指示一个或多个通用传输配置指示状态，所述通用传输配置指示状态包括适用于上行和下行的上下行通用传输配置指示状态，或适用于上行的上行通用传输配置指示状态和/或适用于下行的下行通用传输配置指示状态。
  35. 一种波束指示装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至16中任意一项所述的波束指示方法。
  36. 一种波束指示装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求17至32中任意一项所述的波束指示方法。
  37. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行权利要求1至16中任意一项所述的波束指示方法。
  38. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行权利要求17至32中任意一项所述的波束指示方法。
PCT/CN2020/140943 2020-12-29 2020-12-29 波束指示方法、波束指示装置及存储介质 Ceased WO2022141074A1 (zh)

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