WO2020088571A1 - 一种信息传输方法、装置和设备 - Google Patents

一种信息传输方法、装置和设备 Download PDF

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Publication number
WO2020088571A1
WO2020088571A1 PCT/CN2019/114613 CN2019114613W WO2020088571A1 WO 2020088571 A1 WO2020088571 A1 WO 2020088571A1 CN 2019114613 W CN2019114613 W CN 2019114613W WO 2020088571 A1 WO2020088571 A1 WO 2020088571A1
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Prior art keywords
information
spatial
value
signaling
related parameters
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PCT/CN2019/114613
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English (en)
French (fr)
Inventor
张荻
刘鹍鹏
刘显达
高翔
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华为技术有限公司
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Priority to EP19878947.1A priority Critical patent/EP3852298A4/en
Publication of WO2020088571A1 publication Critical patent/WO2020088571A1/zh
Priority to US17/245,091 priority patent/US11895054B2/en
Priority to US18/400,438 priority patent/US20240204956A1/en

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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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, 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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • 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

Definitions

  • This application relates to the field of communications, and in particular, to an information transmission method, device, and equipment.
  • High-frequency bands with greater available bandwidth such as millimeter-wave bands
  • modern communication systems often use multi-antenna technology to increase the capacity and coverage of the system in order to improve the user experience.
  • the use of high-frequency bands can also greatly reduce the size of the multi-antenna configuration, thereby facilitating site acquisition and deployment of more antennas.
  • LTE Long Term Evolution
  • the beamforming signals may include broadcast signals, synchronization signals, and cell-specific reference signals.
  • the direction of the shaped beam corresponding to the transmitted signal may no longer match the position of the user after the movement, which may cause frequent interruption of the received signal.
  • a channel quality measurement and result reporting based on the beamforming technique are introduced.
  • the measurement of the channel quality may be implemented based on the synchronization signal after beamforming or a cell-specific reference signal. Among them, compared with the handover between cells, the user's handover between different shaped beams will be more dynamic and frequent, so a dynamic measurement and reporting mechanism is needed.
  • the terminal measures multiple beams sent by the base station, selects the N best beams among them, and then reports the beam measurement information of these better beams to the base station.
  • the beam measurement information can also be referred to as beam state information (beam state information (BSI), which mainly includes the beam index and the reference signal received power (RSRP) of the beam.
  • BAI beam state information
  • Figure 1 (e) shows the training process of the beams sent by the base station.
  • the UE sends multiple beams
  • the base station measures the multiple beams sent by the UE, and The better beam among the beams is notified to the UE.
  • the beam on the transmitting side of the base station is represented by reference signal resources, such as beam index 1, which can be described as reference signal resource index 1 in the standard, and the receive beam on the terminal side passes the quasi-co-site or quasi-co-location assumption It is indicated by the spatial reception parameters in the information, where the beam status information can be described as L1-RSRP related information.
  • the beam training process shown in Figure 1 may include:
  • BPL Select the best N beam pair links
  • one BPL includes a network device transmit beam and a terminal (or terminal device) receive beam
  • one BPL includes a terminal transmit beam and Selection of a receiving beam for a network device.
  • the terminal select the transmission beam of the network device and / or the reception beam of the terminal based on the beam scanning of the network device
  • the network device select the transmission beam of the terminal and / or the reception beam of the base station based on the beam scanning of the terminal, as shown in the figure
  • the transmission beam may be a transmission beam of a network device or a transmission beam of a terminal.
  • the transmit beam is a beam transmitted by a network device, as shown in the beam training process of the downlink network device shown in FIG. 1 (e)
  • the network device sends reference signals to the terminal through different transmit beams, and the terminal receives the network through the same receive beam
  • the device sends reference signals sent by different transmit beams, and determines the optimal transmit beam of the network device based on these received reference signals, and then the terminal feeds back the optimal transmit beam to the network device, so that the network device updates the transmit beam.
  • the transmit beam is a terminal transmit beam
  • the uplink terminal beam training process the terminal sends reference signals to the network device through different transmit beams, and the network device uses the same receive beam to The receiving terminal sends reference signals sent through different transmit beams, and determines the optimal transmit beam of the terminal based on the received signal, and then the network device feeds back the optimal transmit beam to the terminal, so that the terminal can update the transmit beam.
  • the above process of sending reference signals through different transmission beams may be referred to as beam scanning, and the process of determining the optimal transmission beam based on the received signals may be referred to as beam matching.
  • the receiving beam may be a receiving beam of a network device or a receiving beam of a terminal.
  • the receiving beam is the receiving beam of the network device, as shown in FIG. 1 (f)
  • the beam training process of the upstream network device the terminal sends the reference signal to the network device through the same transmit beam, and the network device uses different receiving beams to receive the terminal Based on the received signal, and then determine the optimal receiving beam of the network device to update the receiving beam of the network device.
  • the receiving beam is the receiving beam of the terminal, as shown in the downlink terminal beam training process shown in FIG. 1 (c)
  • the network device sends a reference signal to the terminal through the same transmitting beam, and the terminal uses a different receiving beam to receive the network device.
  • the reference signal is then used to determine the optimal receive beam of the terminal based on the received signal to update the receive beam of the terminal.
  • both the transmission beam of the network device and the reception beam of the terminal may change dynamically, and the optimal reception beam determined by the terminal based on the reception signal may include multiple.
  • the terminal may The information of the received beams is fed back to the network device, and the network device may instruct the terminal to receive the beam by sending beam indication information to the terminal.
  • the terminal uses beamforming in the analog domain, the terminal can accurately determine the beam received by the terminal based on the beam indication information sent by the network device, thereby saving the beam scanning time of the terminal device and achieving the effect of power saving.
  • the current beam pointing method only considers a transmission method that uses only one beam to communicate with the terminal at a certain time when there is only one transmission and reception point (Transmission Reception Point, TRP).
  • TRP Transmission Reception Point
  • NR new radio
  • it can support network devices to use different beams to communicate with a terminal, that is, multi-beam transmission (multi-beam transmission), or multiple TRP serves the terminal.
  • multiple TRPs communicating with one terminal include multiple TRPs communicating with one terminal at the same time, or dynamic point selection (DPS) communicating with one terminal.
  • a scenario in which multiple TRPs communicate with one terminal at the same time may also be called an incoherent joint transmission (NCJT) scenario or an NCJT transmission method.
  • NCJT incoherent joint transmission
  • the existing protocol cannot be supported. Therefore, in the scenario of multi-beam / multi-link / multi-layer transmission or multiple TRP transmission, a corresponding mechanism needs to be introduced to indicate the QCL of the data channel information.
  • the present application provides an information transmission method, device, and equipment to solve the situation that the terminal device determines the PDSCH transmission beam in different transmission modes, such as multi-beam / multi-link / multi-layer transmission or multiple TRP transmission scenarios The problem.
  • the present application provides an information transmission method.
  • the method includes: receiving first signaling, the first signaling includes a first word field, and a state value of the first word field is used to indicate reception A first spatial correlation parameter of the first channel, the state value of the first word field is one of a plurality of candidate state values corresponding to the first word field, and at least one state of the plurality of candidate state values
  • the value corresponds to two or more spatial correlation parameters; acquiring one or more target spatial correlation parameters among the first spatial correlation parameters; receiving the first channel according to the one or more target spatial correlation parameters.
  • the spatial correlation parameter may be TCI state ID, quasi-co-location QCL information, or reference signal.
  • the reference signal satisfies the QCL relationship with the first channel or the QDM relationship with the DMRS of the first channel.
  • the method before the receiving the first signaling, the method further includes: receiving second signaling, where the second signaling is used to configure M sets of space-related parameters , M ⁇ 1, wherein the i-th spatial correlation parameter set in the M spatial correlation parameter sets includes Li spatial correlation parameters, and each spatial correlation parameter in the Li spatial correlation parameters is different from the first There is a correspondence between the candidate state values of the word field, 1 ⁇ i ⁇ M, Li ⁇ 2, and M, i, Li are all integers.
  • acquiring one or more target spatial related parameters in the first spatial related parameters includes: determining the first spatial related parameters according to first information One or more target space-related parameters in; wherein the first information is at least one of the following: at least one second field in the first signaling; the set of control resources where the first signaling is located The identifier of the search space set where the first signaling is located; the antenna panel identifier.
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the first information may also be the status value of the first field.
  • the second word field is a transport block word field or an antenna port word field.
  • the transport block word field is used to indicate the number of codewords
  • the antenna port field is used to indicate at least one DMRS port number.
  • the determining one or more target spatial related parameters in the first spatial related parameters according to the first information includes: according to the first information and the first The second information determines one or more target spatial-related parameters in the first spatial-related parameters; wherein the second information is carried by third signaling, and the second information is used to configure the first information and Correspondence between the one or more target spatial related parameters.
  • the second information may also be pre-defined by the protocol.
  • the relationship between the value of the first information and / or the value of the information indicated by the first information and the one or more spatially-related parameters includes any one of the following: the first information Correspondence between the DMRS port identifier of the demodulation reference signal indicated by at least one second field in the command and one or more spatially-related parameters; the DMRS port indicated by at least one second field in the first signaling belongs to The identifier of the group of, corresponding to one or more spatial target-related parameters; the codeword information indicated by at least one second word field in the first signaling corresponds to one or more target spatial-related parameters Relationship; the identification of the control resource set where the first signaling is located, and the correspondence between one or more target space related parameters; the identification of the search space set where the first signaling is located, and one or more target spaces Correspondence between related parameters, the identification of the antenna panel, and one or more target space related parameters.
  • the M spatial correlation parameter sets include P second spatial correlation parameters and Q third spatial correlation parameters, and the P second spatial parameters There is a corresponding relationship between the related parameters and the first value, and there is a corresponding relationship between the Q third spatial related parameters and the second value:
  • the first value and the second value are any one of the following: the DMRS port number indicated by the second field, or the ID of the group to which the DMRS port belongs, or codeword information; the ID of the control resource set ; The identification of the search space collection or the antenna panel identification.
  • the DMRS port number indicated by the second word field may be indicated by the antenna port word field.
  • the codeword information includes the number of codewords.
  • At least one set of the M spatially related parameter sets includes the P second spatially related parameters; the M spatially related parameter sets The at least one set of includes the Q third spatially-related parameters, or at least one set of the M spatially-related parameter sets consists of the P second spatially-related parameters and the Q third spatially-dependent parameters Related parameters.
  • the first spatial correlation parameter includes a second spatial correlation parameter and a third spatial correlation parameter, the value in the first information, and / or the first
  • the value of the information indicated by the information includes at least one value
  • the determining one or more target spatial related parameters in the first spatial related parameters according to the first information includes: the value of the first information and / or the value of the information indicated by the first information is the first In the case of a value, the one or more target spatial-related parameters are second spatial-related parameters; in the case where the value of the first information and / or the value of the information indicated by the first information is the second value, The one or more target spatial correlation parameters are third spatial correlation parameters.
  • the method further includes: the value of the first information and / or the value of the information indicated by the first information is the first value and In the case of the second value, the one or more target spatial correlation parameters are the second spatial correlation parameter and the third spatial correlation parameter.
  • the second field is the antenna port field
  • the identifier of the group to which the indicated DMRS port number belongs is the first value 00, or the second value 01, or includes both the first value 00 and the first
  • Two values of 01 can be determined in the following ways: in the case of the ID of the group to which the DMRS port number belongs, the target space-related parameter is the second spatial-related parameter; in the case of the ID of the group to which the DMRS port number belongs, 01 , The target space-related parameter is a third space-related parameter; when the identifiers of the groups to which the DMRS port number belongs are 00 and 01, the target space-related parameter is a second space-related parameter and a third space-related parameter, where The ID of the first group is 00 to use the second spatial related parameter, and the ID of the second group is 01 to use the third spatial related parameter.
  • At least one second word field in the first signaling includes an antenna port word field and a transport block word field
  • the one or more targets in the first spatial correlation parameter are determined according to the first information
  • the space-related parameters include: determining the one according to the antenna port field and the transport block field in the first signaling, and the identifier of the group to which the DMRS port indicated by the antenna port field belongs
  • the multiple target spatial correlation parameters are the second spatial correlation parameters and / or the third spatial correlation parameters.
  • the method further includes: the value of the first information and / or the value of the information indicated by the first information is the first value and In the case of the second value, the one or more target spatial correlation parameters are the second spatial correlation parameter and the third spatial correlation parameter.
  • the first spatial parameter includes a second spatial parameter and a third spatial related parameter
  • One or more target spatial-related parameters in the field include: when the number of codewords indicated by the second field is 1, the target spatial-related parameters are the second spatial-related parameters or the first A spatially related parameter.
  • the target spatial related parameter is the second spatial related parameter Parameters related to the third space
  • the target spatial correlation parameter is a second spatial correlation parameter, or a second spatial correlation parameter and a third spatial correlation parameter
  • the target spatial related parameter is a second spatial related parameter; or the second spatial related parameter and the third spatial related parameter .
  • the first spatial correlation parameter includes only one spatial correlation parameter
  • the data is received according to the first spatial correlation parameter.
  • the third spatial correlation parameter includes one or more spatial correlation parameters. Then each spatial correlation parameter includes a combination of one or more QCL types.
  • the terminal receives the first signaling sent by the base station, and the first signaling is configured with the state value of the first field to indicate the target spatial-related parameter among the multiple spatial-related parameters, so that The terminal can use the target space-related parameters to receive the first channel, thereby solving the problem that a plurality of DCI signaling schedules a piece of data, and each piece of data comes from a different TRP scenario when the QCL information indicates the data; and a DCI signaling schedule
  • the data comes from different TRP scenarios when the QCL information of the data indicates the problem, and for the transmission scenario where the transmitting node is dynamically selected, the QCL information of the data indicates the problem.
  • the first spatial correlation parameters include a second spatial correlation parameter and a third spatial correlation parameter, the state value of the antenna port word field is divided into a first value and a second value, and the transmission block word
  • the state value of the domain is divided into a first value and a second value, and the information indicated by the antenna port field is divided into a first value and a second value; the terminal according to the value of the transport block field, and / Or, the value of the antenna port field, and / or the value of the information indicated by the antenna port field, to determine the one or more target spatial related information.
  • a first possible implementation manner when the state value of the antenna port word field is the first value and the state value of the transport block word field is the first value, determine that the one or more target space-related parameters are Second spatially related parameters; and / or,
  • the one or more target spatial correlation parameters are the third spatial correlation parameters.
  • a second possible implementation manner when the state value of the field of the transport block is the first value, determine that the one or more target spatial-related parameters are second spatial-related parameters; and / or,
  • the one or more target spatial related parameters are the second spatial related parameters; and / or ,
  • the one or more target spatial correlation parameters are the third spatial correlation parameters.
  • the first value of the transport block word field indicates that the number of code words is 1.
  • the second value of the transport block word field indicates that the number of code words is 2.
  • the first value of the antenna port word field and or the first value of the transport block word field indicate the first transmission mode.
  • the second value of the antenna port word field and or the second value of the transport block word field indicate the second transmission mode.
  • the first transmission mode is single TRP transmission.
  • the second transmission mode is multi-TRP transmission.
  • the first spatial correlation parameter includes a second spatial correlation parameter (such as TCI a1) and a third spatial correlation parameter (such as TCIc1 + c9).
  • the first value indication code word in the transport block word field is 1
  • the one or more target spatial related parameters are second spatial related parameters
  • the second value indication code in the transport block word field When the number of words is 2 and the first value of the antenna port word field is 0 to 3, the one or more target spatial correlation parameters are second spatial correlation parameters.
  • the second value of the transmission block word field indicates that the number of code words is 2, and the second value of the antenna port word field is 4 to 31, the one or more target spatial correlation parameters are the third spatial correlation parameter
  • a third possible implementation manner when the information indicated by the antenna port field is the first value, determine that the one or more target spatial-related parameters are the second spatial-related parameters; and / or,
  • the one or more target spatial correlation parameters are the third spatial correlation parameters.
  • the first value of the information indicated by the antenna port field indicates that the number of DMRS ports CDM groups is 1, and the second value of the information indicated by the antenna port field indicates that the number of DMRS ports CDM groups is greater than 1.
  • the CDM is code division multiplexing (code division multiplexing).
  • the first spatial correlation parameter includes a second spatial correlation parameter (such as TCI a1) and a third spatial correlation parameter (such as TCIc1 + c9).
  • the target spatial related parameter is the second spatial related parameter; the information indicated by the antenna port field
  • the target spatial correlation parameter is a third spatial correlation parameter.
  • the first spatial correlation parameter includes a second spatial correlation parameter (such as TCI c1) and a third spatial correlation parameter (such as TCI c9).
  • the target spatial related parameter is the second spatial related parameter, that is, the DMRS indicated by the antenna port field indicates CDM group corresponds to TCI c1.
  • the target spatial related parameters are the second spatial related parameters (such as TCI) and the third spatial related parameters (Eg TCIc9).
  • the DMRS port in the first DMRS CDM group indicated by the antenna port field corresponds to TCI
  • the other DMRS ports other than the first DMRS CDM group indicated by the antenna port field correspond to TCI c9.
  • the DMRS port indicated by the antenna port field belongs to DMRS CDM group 00 and DMRS CDM group 01, then the DMRS port indicated by the antenna port field belongs to DMRS CDM group 00 corresponds to TCI, the DMRS port indicated by the antenna port field corresponds to DMRS
  • the DMRS port belonging to DMRS CDM group 01 in the port corresponds to TCI9; for another example, the DMRS port indicated by the antenna port field belongs to DMRS CDM group 00, DMRS CDM group 01, DMRS CDM group 11, then the DMRS port indicated by the antenna port field
  • the DMRS ports belonging to DMRS CDM group 00 correspond to TCI1
  • the DMRS ports indicated by the antenna port field belong to DMRS CDM group 01 and DMRS CDM group 11 DMRS ports corresponding to TCI c9.
  • a fourth possible implementation manner when the state value of the word field of the transmission block is the first value and the information indicated by the word field of the antenna port is the first value, it is determined that the one or more target space-related parameters are the first Two spatially related parameters; and / or,
  • the one or more target spatial related parameters are the third spatial related parameters; and / or ,
  • the antenna port word field is the first value
  • the information indicated by the antenna port word field is the first value
  • the one or more target space-related parameters are determined Is the second spatially relevant parameter; and / or,
  • the antenna port word field is the first value
  • the information indicated by the antenna port word field is the second value, determining the one or more target space-related parameters Is a third spatially relevant parameter; and / or,
  • the state value of the transport block word field is the second value and the antenna port word field is the second value, and the information indicated by the antenna port word field is the first value and the second value, determine the one
  • the plurality of target spatial correlation parameters are the second spatial correlation parameter and the third spatial correlation parameter.
  • the first value of the transport block word field indicates that the number of code words is 1.
  • the second value of the transport block word field indicates that the number of code words is 2.
  • the information indicated by the antenna port field is the DMRS port CDM group identifier.
  • the first spatial correlation parameter includes a second spatial correlation parameter (such as TCI) and a third spatial correlation parameter (TCI b1) and a fourth spatial correlation parameter (TCIc1 + c9).
  • the first value in the transport block word field indicates that the number of code words is 1, or the first value indicates that the number of code words is 2, and the first value of the antenna port word field is 0 to 3.
  • the target spatial related parameter is the second spatial related parameter.
  • the first value in the transport block word field indicates that the number of code words is 1, or the first value indicates that the number of code words is 2, and the first value of the antenna port word field is 0 to 3.
  • the target spatial related parameter is a third spatial related parameter.
  • the second value of the information indicated by the antenna port field indicates DMRS port CDM group If the number is greater than 1, the one or more target spatial correlation parameters are a second spatial correlation parameter and a third spatial correlation parameter.
  • the first value of the transport block word field indicates that the number of code words is 1.
  • the second value of the transport block word field indicates that the number of code words is 2.
  • the first spatial correlation parameter includes a second spatial correlation parameter (TCI1) and a third spatial correlation parameter (TCI5).
  • TCI1 second spatial correlation parameter
  • TCI5 third spatial correlation parameter
  • the target spatial related parameter is a second spatial related parameter; and / or, the first value indication code in the transport block word field
  • the target spatial correlation parameter is a second spatial correlation parameter and a third spatial correlation parameter.
  • a sixth possible implementation manner when the state value of the field of the transport block is the first value, determine that the one or more target spatial-related parameters are second spatial-related parameters; and / or,
  • the one or more target spatial related parameters are the second spatial related parameters (optionally , Receiving the first codeword and the second codeword according to the second spatial correlation parameter); and / or,
  • the one or more target space-related parameters are the second space-related parameter and the third space Related parameters (optionally, receive the first codeword according to the second spatially related parameter, and optionally receive the second codeword according to the third spatially related parameter).
  • the first value of the transport block word field indicates that the number of code words is 1.
  • the second value of the transport block word field indicates that the number of code words is 2.
  • the first spatial correlation parameter includes a second spatial correlation parameter (such as TCI1) and a third spatial correlation parameter (such as TCI5).
  • the first value indication code word in the transport block word field is 1
  • the one or more target spatial related parameters are second spatial related parameters
  • the second value indication code in the transport block word field When the number of words is 2 and the first value of the antenna port field is 0 to 3, the one or more target spatial-related parameters are second spatial-related parameters (optionally, according to the second space Relevant parameters receive the first codeword and the second codeword).
  • the one or more target spatial correlation parameters are the second spatial correlation
  • the parameter and the third spatial correlation parameter (optionally, the first codeword is received according to the second spatial correlation parameter, and optionally, the second codeword is received according to the third spatial correlation parameter).
  • a seventh possible implementation manner when the state value of the field of the transport block is the first value, determine that the one or more target spatial-related parameters are the first spatial-related parameters; and / or,
  • the one or more target spatial related parameters are the second spatial related parameters (optionally , Receiving the first codeword and the second codeword according to the second spatial correlation parameter); and / or,
  • the one or more target space-related parameters are the second space-related parameter and the third space Related parameters (optionally, receive the first codeword according to the second spatially related parameter, and optionally receive the second codeword according to the third spatially related parameter).
  • the first value of the transport block word field indicates that the number of code words is 1.
  • the second value of the transport block word field indicates that the number of code words is 2.
  • the first spatial correlation parameter includes a second spatial correlation parameter (such as TCI1) and a third spatial correlation parameter (such as TCI5).
  • the first value indication codeword of the transport block word field is 1
  • the one or more target spatial correlation parameters are the first spatial correlation parameter
  • the second value indication code in the transport block word field When the number of words is 2 and the first value of the antenna port field is 0 to 3, the one or more target spatial-related parameters are second spatial-related parameters (optionally, according to the second space Relevant parameters receive the first codeword and the second codeword).
  • the second value of the transmission block word field indicates that the number of code words is 2
  • the second value of the antenna port word field is 4 to 31
  • the one or more target spatial correlation parameters are the second spatial correlation Parameters and related parameters in the third space
  • the first codeword is received according to the second spatial correlation parameter, and optionally, the second codeword is received according to the third spatial correlation parameter.
  • An eighth possible implementation manner when the state value of the field of the transport block is the first value, determine that the one or more target spatial-related parameters are the first spatial-related parameters or the second spatial-related parameters; and / or
  • the one or more target spatial related parameters are the second spatial related parameters (optionally , Receiving the first codeword and the second codeword according to the second spatial correlation parameter); and / or,
  • the one or more target spatial related parameters are the third spatial related parameters (optionally , Receiving the first codeword and the second codeword according to the third spatial correlation parameter); and / or,
  • the one or more target spatial correlation parameters are the second spatial correlation
  • the third spatial correlation parameter (optionally, the first codeword is received according to the second spatial correlation parameter, and optionally, the second codeword is received according to the third spatial correlation parameter).
  • the first value of the transport block word field indicates that the number of code words is 1.
  • the second value of the transport block word field indicates that the number of code words is 2.
  • the information indicated by the antenna port field is the DMRS port CDM group identifier.
  • the first spatial correlation parameter includes a second spatial correlation parameter (such as TCI1) and a third spatial correlation parameter (such as TCI5).
  • the one or more target spatial correlation parameters are the first spatial correlation parameter or the second spatial correlation parameter;
  • the one or more target spatial related parameters are the second spatial related parameters (may Optionally, receiving the first codeword and the second codeword according to the second spatial correlation parameter).
  • the one or more target space-related parameters are Three spatially related parameters.
  • the one or more targets are a second spatial correlation parameter and a third spatial correlation parameter (optionally, the first codeword is received according to the second spatial correlation parameter, and optionally, the second code is received according to the third spatial correlation parameter word).
  • first value and the second value in this application may refer to a value range or a certain value, the first value may include one or more values, and the second value may include one or more values Values.
  • first values of different information or different fields may be different, and the second values of different information or different fields may be different.
  • the embodiments of the present application do not specifically limit the various values.
  • this embodiment provides an information transmission method.
  • the method includes: a network device sends first signaling, the first signaling includes a first word field, and the state value of the first word field is used
  • the state value of the first word field is one of a plurality of candidate state values corresponding to the first word field, and among the plurality of candidate state values At least one state value corresponds to two or more space-related parameters; the network device sends the first channel according to one or more target space-related parameters in the first space-related parameters.
  • the method further includes sending second signaling, where the second signaling is used to configure M spatially-related parameter sets, M ⁇ 1, where The ith spatial correlation parameter set in the M spatial correlation parameter sets includes Li spatial correlation parameters, and each spatial correlation parameter in the Li spatial correlation parameters is between the candidate state value of the first field There is a corresponding relationship, 1 ⁇ i ⁇ M, Li ⁇ 2, and M, i, Li are all integers.
  • the method further includes: sending the first information, where the first information is at least one of the following: at least one of the first signaling A second word field, an identifier of a control resource set where the first signaling is located, an identifier of a search space set where the first signaling is located, a state value of the first word domain, and an antenna panel identifier.
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the second word field is a transmission block word field or an antenna port word field
  • the transmission block word field is used to indicate the number of codewords
  • the The antenna port field is used to indicate at least one DMRS port number.
  • the method further includes sending third signaling, where the third signaling includes second information, and the second information is used to configure The correspondence between the first information and the one or more target space related parameters.
  • the M spatially-related parameter sets include P second spatially-related parameter sets and Q third spatially-related parameter sets, the P The second spatially related parameter set has a corresponding relationship with the first value, and the Q third spatially related parameter sets have a corresponding relationship with the second value; wherein the first value and the second value are the following Any one: the DMRS port ID indicated by the second word field, or the ID of the group to which the DMRS port belongs, or codeword information, or the ID of the control resource set, the ID of the search space set, the antenna panel ID, the first The status value of the field.
  • At least one set of the M spatially related parameter sets includes the P second spatially related parameters, and the M spatially related parameter sets The at least one set of includes the Q third spatially-related parameters; or, at least one set of the M spatially-related parameter sets is composed of the P second spatially-related parameters and the Q third spatially-dependent parameters Related parameters.
  • the spatially-related parameters are: a transmission configuration indication TCI state, or quasi-co-location QCL information, or a reference signal RS, where the RS is used to indicate The first channel QCL information is described.
  • this embodiment also provides a communication device for implementing the foregoing first aspect and methods in various implementations of the first aspect, wherein the device includes a receiving unit and a processing unit, which can Optionally, the communication device may further include a sending unit, a storage unit, or other necessary unit modules.
  • the receiving unit is used to receive first signaling
  • the processing unit is used to obtain one or more target spatial related parameters in the first spatial related parameters; and, according to the one or more targets Spatially-related parameters receive the first channel, wherein the first signaling includes a first field, and the state value of the first field is used to indicate that the first spatial-related parameters of the first channel are received, the first The state value of the word field is one of the plurality of candidate state values corresponding to the first word field, and at least one state value of the plurality of candidate state values corresponds to two or more spatial-related parameters.
  • the receiving unit is further configured to receive second signaling before receiving the first signaling, and the second signaling is used to configure M spaces Related parameter set, M ⁇ 1; wherein, the ith spatial related parameter set in the M spatial related parameter sets includes Li spatial related parameters, each of the Li spatial related parameters is related to the There is a correspondence between the candidate state values of the first word field, 1 ⁇ i ⁇ M, Li ⁇ 2, and M, i, and Li are all integers.
  • the processing unit is further specifically configured to determine one or more target spatial-related parameters in the first spatial-related parameters according to the first information, where
  • the first information is at least one of the following: at least one second field in the first signaling, an identifier of a control resource set where the first signaling is located, and a search space set where the first signaling is located , The ID of the antenna panel, or the status value of the first field.
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the second word field is a transmission block word field or an antenna port word field
  • the transmission block word field is used to indicate the number of code words
  • the antenna port word field is used to indicate at least one DMRS port number
  • this embodiment also provides a communication device, which is further used to implement the foregoing second aspect and methods in various implementations of the second aspect, wherein the device includes a sending unit and a processing unit
  • the communication device may further include a receiving unit, a storage unit, or other necessary unit modules.
  • the sending unit is used to send first signaling
  • the first signaling includes a first word field
  • the state value of the first word field is used to indicate the reception of the first spatial related parameter of the first channel
  • the state value of the first word field is one of a plurality of candidate state values corresponding to the first word field, and at least one state value of the plurality of candidate state values corresponds to two or more spatial correlations parameter.
  • this embodiment also provides a communication device, including a processor, the processor is coupled to a memory, the memory is used to store instructions, and the processor is used to execute instructions in the memory So that the communication device executes the method described in the first aspect or any implementation manner of the first aspect, or implements the method described in the foregoing first aspect or any implementation manner of the second aspect.
  • this embodiment also provides a computer storage medium, including computer instructions, which, when the computer instructions run on a device, cause the device to perform the foregoing first aspect or any one of the implementation manners of the first aspect.
  • a computer storage medium including computer instructions, which, when the computer instructions run on a device, cause the device to perform the foregoing first aspect or any one of the implementation manners of the first aspect.
  • the present application also provides a computer program product that, when running on a computer, implements the method described in the first aspect or any implementation manner of the first aspect, or implements the second aspect Or the method described in any implementation manner of the second aspect.
  • a terminal receives a first signaling sent by a base station, and the first signaling is configured with a state value of a first field to indicate a plurality of space-related parameters
  • the target space-related parameters in allows the terminal to use the target space-related parameters to receive the first channel, thereby solving the problem of QCL information indication in various transmission scenarios.
  • FIG. 1 is a schematic diagram of a beam training provided by this application
  • FIG. 2a is a schematic diagram of a single TRP single beam transmission provided by an embodiment of the present application.
  • 2b is a schematic diagram of a single TRP multi-beam transmission provided by an embodiment of the present application.
  • 2c is a schematic diagram of multiple TRP multi-beam transmission according to an embodiment of the present application.
  • 2d is a schematic diagram of beam transmission in a DPS scenario provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an application scenario provided by an embodiment of this application.
  • FIG. 5 is a flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a correspondence relationship between a field value of an antenna port and a DMRS port according to an embodiment of the present application
  • FIG. 8 is a schematic diagram of another correspondence relationship between an antenna port value and a DMRS port according to an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another communication device according to an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • Control resource set (control reset, CORESET)
  • the network device may configure one or more resource sets for the UE to send a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the network device may send the control channel to the terminal on any control resource set corresponding to the terminal.
  • the network device also needs to notify the terminal of other related configurations of the control resource set, such as a search space set.
  • There are differences in the configuration information of each control resource set such as differences in frequency domain width and differences in time domain length.
  • control resource set in this application may be a CORESET or control region or ePDCCH set defined by a 5G mobile communication system.
  • QCL information Quasi-co-site / quasi-co-location QCL assumption information can also be called QCL information.
  • the QCL information is used to help describe the beam forming information and the receiving process of the receiving side of the terminal.
  • the QCL information is used to indicate the QCL relationship between the two reference signals, the source reference signal and the target reference signal
  • the target reference signal may generally be a demodulation reference signal (DMRS), channel state information reference Signal (channel state information reference, signal, CSI-RS), etc.
  • the reference signal or source reference signal cited can generally be CSI-RS, tracking reference signal (TRS), synchronous signal broadcast channel block (synchronous signal) / PBCH block, SSB), etc.
  • TRS tracking reference signal
  • synchronous signal broadcast channel block synchronous signal broadcast channel block
  • SSB synchronous signal broadcast channel block
  • the spatial characteristic parameters include one or more of the following parameters:
  • Angle of incidence AoA
  • dominant incidence angle AoA average incidence angle
  • power angle spectrum of incidence angle power angular spectrum (PAS)
  • exit angle angle of departure, AoD
  • main exit angle Average exit angle, power angle spectrum of exit angle
  • terminal transmit beamforming terminal receive beamforming, spatial channel correlation, base station transmit beamforming, base station receive beamforming, average channel gain, average channel delay (average delay), time Delay spread, Doppler spread, Doppler shift, spatial Rx parameters, etc.
  • These spatial characteristic parameters describe the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, and help the terminal complete the beamforming or receiving processing on the receiving side according to the QCL information. It should be understood that the terminal may receive the target reference signal according to the reception information of the source reference signal indicated by the QCL information.
  • the network device side may indicate a physical downlink control channel (Physical Downlink Control Channel, PDCCH) or a physical downlink shared channel (Physical Downlink The demodulation reference signal of the Shared Channel (PDSCH) and one or more of the multiple reference signal resources previously reported by the terminal satisfy the QCL relationship.
  • the reference signal may be a CSI-RS.
  • each reported CSI-RS resource index corresponds to a transceiver beam pair previously established based on the measurement of the CSI-RS resource. It should be understood that the received beam information of the two reference signals or channels satisfying the QCL relationship is the same, so that the UE can infer the received beam information of the received PDCCH or PDSCH based on the reference signal resource index.
  • the base station can configure one or more types of QCL for the UE at the same time, such as QCL type, A + D or C + D:
  • QCL Type A Doppler frequency shift (Doppler shift), Doppler spread (Doppler spread), average channel delay (average delay) and delay spread (delay spread);
  • QCL Type B Doppler frequency shift and Doppler expansion
  • QCL type C average channel delay and Doppler frequency shift
  • QCL type D spatial receiving parameter (spatial Rx parameter).
  • the QCL information in this application includes one or more of QCL type A, type B, type C, and type D.
  • the spatial correlation information is used to indicate the spatial reception parameter relationship between the two reference signals, where the target reference signal may generally be a DMRS, sounding reference signal (SRS), etc., while the referenced reference signal or source reference The signal may generally be CSI-RS, SRS, SSB, etc. It should be understood that the spatial characteristic parameters of the two reference signals or channels satisfying the spatial correlation information are the same, so that the spatial characteristic parameters of the target reference signal can be inferred based on the source reference signal resource index.
  • the spatial characteristic parameters are the same as the aforementioned spatial characteristic parameters, such as angle of incidence (AoA), Dominant angle of incidence AoA, average angle of incidence, ..., spatial reception parameters (spatial Rx parameters) No detailed examples.
  • These spatial characteristic parameters describe the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, and help the terminal complete beamforming or transmission processing on the transmit side according to the spatially related information. It should be understood that the terminal may transmit the target reference signal according to the transmission information of the source reference signal indicated by the spatial correlation information.
  • Transmission configuration indicator transmission configuration indicator
  • TCI information QCL information used to indicate PDCCH / CORESET or PDSCH. Further, the TCI information means that the reference signal included in the TCI and the DMRS of the PDCCH / PDSCH satisfy the QCL relationship, and is mainly used to indicate that the spatial characteristic parameters of the PDCCH / PDSCH and the spatial characteristic parameters of the reference signal included in the TCI Such information is the same, similar or similar.
  • Synchronous signal broadcast channel block (SS / PBCH block)
  • SS / PBCH block (synchronous signal / PBCH block) can also be called SSB.
  • the physical broadcast channel physical broadcast channel, PBCH).
  • the SSB includes at least one of a primary synchronization signal (primary synchronization signal (PSS), a secondary synchronization signal (secondary synchronization signal, SSS), and PBCH. It is mainly used for cell search, cell synchronization, and signals carrying broadcast information.
  • Beam is a communication resource.
  • the beam may be a wide beam, or a narrow beam, or other types of beams.
  • the technique of forming a beam may be a beam forming technique or other technical means.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital / analog beamforming technology. Different beams can be considered as different resources, and the same information or different information can be sent through different beams.
  • multiple beams with the same or similar communication characteristics may be regarded as one beam.
  • One or more antenna ports can be included in a beam to transmit data channels, control channels, and sounding signals.
  • the transmit beam may refer to the signal intensity distribution formed in different directions of the space after the signal is transmitted through the antenna
  • the receive beam may refer to the signal intensity distribution of the wireless signal received from the antenna in different directions in the space.
  • one or more antenna ports forming a beam can also be regarded as a set of antenna ports.
  • the beam can be divided into a transmission beam and a reception beam of a network device, and a transmission beam and a reception beam of a terminal.
  • the transmission beam of a network device such as a base station, is used to describe the beam forming information of the transmission side of the network device, and the reception beam of the base station is used to describe the beam forming information of the reception side of the network device.
  • the transmit beam of the terminal is used to describe beamforming information on the transmit side of the terminal, and the receive beam of the terminal is used to describe beamforming information on the receive side of the terminal. Therefore, it is generally understood that beams can be used to describe beamforming information.
  • the beam may correspond to one or more of time resources, space resources, and frequency domain resources.
  • the beam may also have a corresponding relationship with reference signal resources (for example, reference signal resources for beam forming) or beam forming information.
  • reference signal resources for example, reference signal resources for beam forming
  • beam forming information for example, beam forming information
  • the beam may also correspond to the information associated with the reference signal resource of the network device.
  • the reference signal may be CSI-RS, SSB, DMRS, phase tracking signal (PTRS), TRS, etc.
  • the information associated with the reference signal resource may be the reference signal resource identifier, or QCL information (especially the type D's QCL), TCI information, etc.
  • the reference signal resource identifier corresponds to a transceiver beam pair previously established based on the measurement of the reference signal resource. Through the reference signal resource index, the terminal can infer beam information.
  • the beam can also correspond to a spatial filter / spatial filter, a spatial domain transmission filter, a spatial filter, and a spatial transmission filter.
  • the receive beam is equivalent to the spatial transmission filter, the spatial transmission filter, the spatial reception filter, the spatial reception filter; the transmission beam can be equivalent to the spatial filter, the spatial transmission filter, the spatial transmission filter, the spatial transmission filter Device.
  • Spatially related parameter information is equivalent to a spatial filter (spatial domain transmission / receive filter).
  • the spatial filter generally includes: a spatial transmission filter, and / or, a spatial reception filter.
  • the spatial filter can also be called a spatial domain transmission filter, a spatial domain reception filter, a spatial transmission filter, a spatial domain transmission filter, and so on.
  • the receive beam on the terminal side and the transmit beam on the network device side may be used as downlink spatial filters, and the transmit beam on the terminal side and the receive beam on the network device side may be used as uplink spatial filters.
  • initial BWP initial BWP
  • initial BWP initial BWP
  • the network device schedules the terminal from the initial BWP to a BWP whose bandwidth matches its service, and can instruct the BWP, network device, and terminal that the current terminal device works through high-level signaling or layer-1 signaling Data and / or reference signals can be sent and received on this BWP.
  • This BWP is called activated BWP.
  • a terminal has only one activated BWP at the same time, and the terminal can only receive data / reference signals or send data / reference signals on the activated BWP.
  • the network device instructs the terminal device to switch the BWP through downlink control information (downlink control information, DCI) or radio resource control (radio resource control, RRC) signaling.
  • DCI downlink control information
  • RRC radio resource control
  • DCI is located in the current BWP, and the size of its frequency domain resource allocation information field is determined by the bandwidth of the current BWP.
  • There is an information field of bandwidth area indicator in DCI which is used to indicate the ID number of the BWP activated by the terminal.
  • the terminal needs to switch from the current BWP to the BWP indicated in the DCI.
  • one type of reference signal is used to estimate the channel, such as DMRS, so that the received signal containing control information or data can be coherently demodulated; the other type is used for channel status or channel quality Measurement, such as CSI-RS, to implement scheduling for the UE.
  • the UE Based on the channel quality measurement of the CSI-RS, the UE obtains channel state information (channel state information (CSI), the CSI includes a rank indicator (Rank Indicator, RI), a precoding indicator (Precoding Matrix Indicator, PMI), and a channel quality indicator ( At least one of Channel Quality (Indicator, CQI), etc.
  • CSI information can be sent by the UE to the base station through a physical uplink control channel (Physical Uplink Control Channel, PUCCH) or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the existing PDSCH or PUSCH spatial related parameter information method is as follows:
  • the beam indication for PDSCH is mainly achieved through TCI information, such as radio resource control (Radio Resource Control, RRC) signaling, medium access control (Medium Access Control, MAC-CE) signaling, and downlink control information (Downlink Control Information (DCI) joint indication, or, it can also be joint indication through RRC signaling and DCI.
  • RRC Radio Resource Control
  • MAC-CE Medium Access Control
  • DCI Downlink Control Information
  • a method of dynamic indication includes:
  • the RRC configures M candidate transmission configuration indication (Transmission Configuration Indicator, TCI) states of the PDSCH, and each candidate TCI state includes one piece of QCL information.
  • TCI Transmission Configuration Indicator
  • MAC-CE activates 2 N TCI states (subset of M TCI states) from M TCI states.
  • the serving cell ID (serving cell ID): used to indicate the ID of the serving cell to which the TCI indicated by the MAC-CE belongs.
  • BWP ID used to indicate the downlink bandwidth area to which the MAC-CE applies.
  • Ti field used to indicate the activation / deactivation state of TCI state of TCI state ID. Further, if the Ti field is "1", it indicates that the TCI of the TCI state ID is activated and is mapped to the TCI field of the DCI. If the Ti field is "0", it means that the TCI state of the TCI state ID is deactivated and will not be mapped to the TCI field of DCI.
  • R stands for reserved bit (Reserved bit), generally set to “0”.
  • the TCI state maps to the DCI codepoint (codepoint) according to all of its Ti field, set to "1" TCI state sequence mapping. For example, the TCI with the first Ti field set to "1" maps to the location of codepoint value 0; the TCI with the second Ti field set to "1" maps to the location of codepoint value 1, and so on,
  • the maximum number of values in the activated TCI state is 8.
  • the TCI field in DCI has N bits to indicate one TCI of 2N TCI States for PDSCH reception.
  • N 3 in the existing protocol, the DCI shown in Table 2 can be used to indicate the TCI state one of.
  • whether the TCI of PDSCH exists in the DCI field can be indicated by high-level signaling, such as the TCI-PresentInDCI field in RRC signaling, which can be configured for each CORESET.
  • high-level signaling such as the TCI-PresentInDCI field in RRC signaling, which can be configured for each CORESET.
  • the TCI of the PDSCH is TCI state configured by PDCCH.
  • the UE uses the default TCI state to receive the PDSCH; when the scheduling offset value is greater than the threshold k, the UE uses the TCI state ID indicated in the DCI to receive the PDSCH. It is stipulated that in the initial RRC and MAC-CE phases, the UE assumes that the PDCCH, PDSCH DMRS, and synchronization signal broadcast channel block (SSB) determined during initial access are QCL.
  • SSB synchronization signal broadcast channel block
  • the beam information it implements may be jointly indicated by RRC signaling, MAC-CE signaling, and DCI, or indicated by RRC information and DCI, where the DCI includes a sounding reference signal resource indicator (SRS resource indicator) , SRI) field, used to indicate PUSCH beam information (spatial relation information).
  • SRS resource indicator sounding reference signal resource indicator
  • SRI sounding reference signal resource indicator
  • the base station configures a TCI table or TCI set used to indicate the QCL information of the data channel through signaling.
  • the TCI field in the DCI indicates a TCI state in the TCI table or TCI set.
  • the state value of each TCI field corresponds to only one transmission configuration indication TCI status ID (QCL information).
  • TCI status ID QCL information
  • the base station indicates 64 TCI states for PDSCH reception through RRC signaling, and MAC-CE signaling activates 8 TCI states among the 64 TCI states.
  • the IDs of the 8 TCI states are a1 to a8, and the DCI field A state value of 000 corresponds to the TCI state ID a1, and the terminal device receives the PDSCH according to the TCI state indicated by the TCI state Id a1.
  • DCI indicates one of the three beams, that is, the data sent by TRP1 from one of the three optional beams, and the corresponding one beam is received by the UE at the receiving end, that is, a piece of data scheduled by one DCI signaling From a TRP, as shown in Figure 2a, this scenario belongs to the single TRP single beam (single TRP with single-beam) transmission mode.
  • TRP1 will use two beams to send data to the UE at the same time.
  • This scenario belongs to single TRP multi-beam transmission mode.
  • the scenario of multi-TRP with multi-beam simultaneous transmission shown in Figure 2c that is, TRP1 and TRP2 use one beam to transmit data to the UE, that is, one piece of data comes from two different TRPs.
  • the multi-TRP multi-beam transmission scenario may also be referred to as a non-coherent joint transmission (Non Coherent Joint Transmission (NCJT) scenario).
  • NJT Non Coherent Joint Transmission
  • the UE needs multiple beam indication information to receive the data channel.
  • a possible transmission scenario is also included, where multiple DCIs each schedule a piece of data, and each piece of data comes from a different TRP.
  • the table format using the current TCI status ID cannot be supported.
  • the current DCI indicates The flexibility of TCI information is low, and for indicating different TCI field states in various transmission scenarios, the overhead of the occupied indication information is large.
  • the technical solutions provided by the present application are as follows. Before describing the technical solutions of the embodiments, the technical scenarios to which the technical solutions of the present application can be applied are first introduced.
  • the technical solution provided by the present application can be applied to various communication systems, for example, a new radio (NR) system in the fifth generation (5G) mobile communication system or a future mobile communication system.
  • the 5G mobile communication system includes a non-standalone (NSA) 5G mobile communication system, and / or a standalone (SA) 5G mobile communication system. This application does not limit this.
  • FIG. 3 shows an application composed of a network device, terminal 1, and terminal 2. Scenes. Understandably, the scenario may also be composed of other numbers of terminals and network devices, which is not limited in this application.
  • the terminal may be called an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device , User agent or user device, etc.
  • the access terminal may be a cellular phone, a handheld device with wireless communication function, a computing device, or other processing devices connected to a wireless modem, an in-vehicle device, a wearable device, and user equipment in a 5G communication system.
  • the network device may be a base station (base transceiver) (BTS) in a code division multiple access (CDMA) system or a wideband code division multiple access (WCDMA) system.
  • BTS base transceiver
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • the base station (node B, NB) can also be an evolutionary base station (evolution B) in the LTE system, or a base station (gNB) in the 5G mobile communication system.
  • the above base station is just an example, and the network equipment also It can be a relay station, an access point, an in-vehicle device, a wearable device, and other types of devices.
  • the following uses the network device as a base station and the terminal as a UE as an example to describe in detail the technical solutions provided by the embodiments of the present application.
  • This embodiment provides an information transmission method, which can be applied to the foregoing various transmission scenarios, for example, a scenario in which multiple DCIs correspond to multiple TRPs, or a DPS scenario.
  • DCI can schedule data of different TRPs at different times, and the UE determines the current data location.
  • the specific process of the space-related parameters used is as follows:
  • the method provided in this embodiment includes:
  • Step 101 The base station sends first signaling.
  • the first signaling includes a first word field
  • the state value of the first word field is used to indicate the reception of the first spatial correlation parameter of the first channel
  • the state value of the first word field is the One of a plurality of candidate state values corresponding to a word field, at least one state value of the plurality of candidate state values corresponding to two or more spatially-related parameters.
  • the spatially related parameters include: TCI state or TCI state ID, or QCL information, reference signal or reference signal index.
  • the reference signal and the first channel satisfy the QCL relationship.
  • the spatial related parameter information indicates two reference signals (reference signals, RS), which are RS1 and RS2, respectively. Understandably, the spatially-related parameters may also indicate the UE through other characteristic parameters and be used to receive the first channel.
  • the specific form of the spatially-related parameters is not limited in this application.
  • the RS may be spatial related information (spatial relation info).
  • the first channel includes PDSCH or PUSCH.
  • the first channel includes PUCCH or PDCCH.
  • the spatial correlation parameter for downlink channel transmission, the spatial correlation parameter is TCI status or QCL information; for uplink channel transmission, the spatial correlation parameter is spatial correlation information (spatial correlation info).
  • the first signaling is DCI signaling.
  • the format of the DCI signaling is DCI format1-1.
  • the space-related parameter is taken as an example of the TCI state ID.
  • a space-related parameter is the TCI state ID, which can be “TCI state ID” a1, where a1 is a value of the TCI state ID.
  • the TCI state ID The value of can also be a2, a3, ... a8, b1, b2, c1, c2, etc.
  • the TCI state ID may be expressed as "TCI state ID” a1 "or abbreviated as” TCI ID "a1”, “ TCI “a1”, “TCI 1”.
  • the first field is a TCI field, which can be simplified as "Ti field".
  • the first field can correspond to multiple state values (value of TCI field), and each of the state values can correspond to one or Multiple spatially related parameters.
  • Table 1 above including 8 status values, 000 to 111, and each status value corresponds to a spatially related parameter, for example, the spatially related parameter (TCI status ID) corresponding to the status value "000" of the TCI field is a1; " The spatial correlation parameter (TCI state ID) corresponding to 001 "is a2, and so on.
  • the eight status values shown in Table 1, from 000 to 111 are candidate status values of the first word field, and the corresponding state values of the first word field carried in the first signaling are these 8
  • One of the candidate status values for example, the status value of the first field is "000".
  • At least one state value of the plurality of candidate state values corresponds to two or more spatially-related parameters, and it can be understood that there is at least one candidate state value among the eight candidate state values, such as "000" and two or more More than two TCI state IDs have a corresponding relationship.
  • 000 corresponds to TCI state ID a1
  • 000 corresponds to TCI state ID b1, where a1 and b1 are located in different spatially related parameter sets.
  • the state value of the first word field in the first signaling corresponds to a spatial correlation parameter.
  • the status value "000" corresponds to the TCI status ID a1.
  • the status value of the first field in the first signaling corresponds to two or more spatially-related parameters, for example, the status value "000" corresponds to the TCI status IDs c1 and c9.
  • the first signaling is DCI signaling.
  • the first signaling further includes first information, and the first information is used to determine one or more spatial-related parameters in the first spatial-related parameters.
  • the first information may be at least one of the following information: at least one second field in the first signaling, the identifier (CORESET ID) of the control resource set where the first signaling is located, and the first information Let the search space set ID (search space ID).
  • the second word field is a transport block (transport block) word field or an antenna port (antenna port) word field.
  • Step 102 The base station sends second signaling.
  • the second signaling is used to configure M spatially-related parameter sets, M ⁇ 1, wherein the i-th spatially-related parameter set among the M spatially-related parameter sets includes Li spatially-related parameters, and the Li There is a corresponding relationship between each spatial correlation parameter in the spatial correlation parameters and the multiple candidate state values of the first word field, where 1 ⁇ i ⁇ M, Li ⁇ 2, and M, i, and Li are all integers.
  • the second signaling is RRC signaling, or RRC signaling and MAC-CE signaling.
  • the second signaling may be performed before step 101 or after step 101, which is not limited in this application.
  • the second signaling is configured by the base station and delivered to the UE.
  • the second signaling is used to indicate spatial parameters related to receiving PDSCH candidates, such as a TCI status table or a TCI status set.
  • Table 2 above shows a correspondence between the candidate state value of the first field and the TCI state ID.
  • the base station can also configure other spatial related parameter sets through the second signaling, as shown in Table 3 below,
  • Table 3 shows the candidate state values of the eight TCI fields and the TCI state ID corresponding to each candidate state value, where each candidate state value corresponds to a spatially related parameter (TCI state ID), and from b1 to These 8 spatially related parameters of b8 form a set called spatially related parameter set.
  • the "collection" of spatially related parameters may be referred to as a "Table” of spatially related parameters or a "List” of spatially related parameters.
  • each spatial correlation parameter a1 to a8, or b1 to b8 has a corresponding relationship with the candidate state value of the TCI field from 000 to 111.
  • the two spatially-related parameter sets configured are used to receive data from different TRPs, or receive data from different antenna panels of one TRP, or receive data from different directions.
  • one spatially related parameter set ⁇ TCIa1, TCI2, ..., TCI8a ⁇ is used to indicate the spatially related parameters of the information sent by TRP1
  • another spatially related parameter set ⁇ TCIb1, TCIb2, ..., TCIb8 ⁇ Space-related parameters used to indicate the information sent by TRP2.
  • the case where the above two spatially related parameter sets are used to indicate the spatially related parameters of a single TRP to send information is called “single TRP transmission” or “single TRP transmission” or “single station transmission” ".
  • the M spatial related parameter sets may be configured through one second signaling, or may be configured through multiple second signaling.
  • the second signaling is DCI signaling.
  • Step 103 The base station sends third signaling.
  • the third signaling is RRC signaling and / or MAC-CE signaling.
  • the third signaling includes second information, and the second information is used to configure a correspondence between the first information and the one or more spatially-related parameters.
  • the second information may also be predefined by the protocol.
  • the base station may not send the third signaling, and the second information is generated by the UE according to the protocol.
  • the correspondence between the value of the first information and / or the value of the information indicated by the first information and one or more target space-related parameters in the first space-related parameters includes the following various situations:
  • the second information is used to configure between the DMRS port group identifier and space-related parameters Correspondence.
  • the M spatially relevant parameter sets include P second spatially relevant parameters ⁇ TCI1, TCI2, ..., TCI8a ⁇ and Q third spatially relevant parameters ⁇ TCI1b1, TCI b2, ..., TCIb8 ⁇ .
  • the DMRS port group identifier is an identifier of a CDM group (DMRS port CDM group) to which the DMRS port belongs, wherein the CDM group identifier may correspond to different spatial related parameters according to different values.
  • the first value "00" of the CDM group ID of the DMRS port corresponds to P second space-related parameters, such as TCI aa1 to TCI aa8, or the first space-related parameter set ⁇ TCI aa, TCI aa 2, ..., TCI ⁇
  • the second value "01" of the CDM group ID of the DMRS port corresponds to Q third spatially related parameters, such as TCI b1 to TCI b8, or the second spatially related parameter set ⁇ TCI b1, TCI b2, ..., TCI b8 ⁇ .
  • the second information is used to configure the correspondence between the identifier of the control resource set and the space-related parameter.
  • CORESET ID1 (the first value) corresponds to P second spatially related parameters, such as TCI list1 or TCI table1, where TCI list1 or TCI table1 is part of ⁇ TCI1, TCI2, ..., TCI8a Or all composed.
  • CORESET ID2 (second value) corresponds to Q third spatially related parameters, such as TCI list2 or TCI table2, which is in ⁇ TCIb1, TCIb2, ..., TCIb8 ⁇ Part or all of it.
  • the identifier of the control resource set may also be an identifier group of the control resource set or an identifier set of the control resource set, where the CORESET group includes at least one CORESET ID.
  • the CORESET group 1 includes CORESET ID1, CORESET ID2, and the like.
  • the second information is used to configure a correspondence between the search space set identifier and space-related parameters.
  • search ID1 first value
  • P second space-related parameters such as TCI list1 or TCI table1 ⁇ TCI1, TCI2,..., TCI 8a ⁇
  • search space ID2 second value
  • Q third spatially relevant parameters such as TCI list2 or TCI table2 ⁇ TCI b1, TCI b2, ..., TCI b8 ⁇ .
  • it can include:
  • the second information is used to configure the correspondence between the DMRS port identifier and space-related parameters .
  • DMRS ports correspond to TCI list or TCI table.
  • the second information is used to configure one of the codeword (CW) and space-related parameters
  • CW codeword
  • space-related parameters For example, one CW corresponds to TCI a1; two codewords correspond to TCI a1, TCI b1, for example, CW1 corresponds to TCI aa1, and CW2 corresponds to TCI ab1.
  • CW1 represents the first codeword
  • CW2 represents the second codeword.
  • the second word field in the first signaling is a frequency domain resource configuration word field, or the second word field is a time domain resource configuration word field;
  • the first information is at least one
  • the second information is used to configure the correspondence between the resource and the space-related parameter.
  • the first resource corresponds to TCI a1; the second resource corresponds to TCI b1.
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the first information may be indicated by one or more of the first signaling, the second signaling, and the third signaling, or may be other signaling instructions.
  • the corresponding relationship may include one of the following corresponding relationships:
  • One CDM group ID / CORESET ID / search space ID / antenna panel ID is associated with one or more space-related parameters or space-related parameter sets; for example, the CDM group ID 00 can correspond to TCI table1 and TCI table2;
  • a space-related parameter list or space-related parameter set is associated with at least one CDM group ID / CORESET ID / search space ID / antenna panel ID; for example, TCI list1 associated CORESET ID has 00, or 00 and 01.
  • different spatially related parameter sets may contain the same spatially related parameters, for example, TCI table1 and TCI both include spatially related parameters TCIa1.
  • step 102 and step 103 are configured by the base station through signaling
  • the second signaling sent by the base station in step 102 and the third signaling sent in step 103 may be the same signaling, and the base station configures and sends
  • the signaling time may be configured at the same time or not at the same time. This application does not limit the sequence of the specific time configured by the base station.
  • the time sequence in which the first signaling, the second signaling, and the third signaling are sent in sequence is also not limited.
  • Step 104 The UE receives at least one signaling sent by the base station.
  • the at least one signaling includes the first signaling, the second signaling and / or the third signaling sent by the foregoing base station.
  • the third signaling may not be received.
  • the UE only receives the first signaling and Second signaling.
  • the agreement specifies the correspondence indicated or included by the second information.
  • Step 105 The UE acquires one or more target spatial-related parameters in the first spatial-related parameters.
  • the acquiring may be understood as that the UE determines one or more target spatial related parameters among the first spatial related parameters.
  • step 105 includes: determining the one or more spatially-related parameters according to the first information. More specifically, the determination process of this step will be described in detail in the following fourth embodiment, and will not be described here.
  • step 105 includes: determining the one or more spatially-related parameters according to the first information and the second information.
  • determining the one or more target space-related parameters according to the first information and the second information specifically includes:
  • Step 1051 The UE determines the target spatial related parameter set according to the at least one signaling.
  • the process of determining the target space-related parameters by the second information content carried in the third signaling is as follows:
  • the UE receives the two spatially-related parameter sets configured by the second signaling.
  • M 2
  • the spatially related parameters in the spatial parameter set ⁇ TCI1, TCI2, ..., TCI8a8 ⁇ shown in Table 2 are used to indicate the data from the same TRP Spatially related parameters of information, such as TPR1;
  • the spatial parameter set ⁇ TCIb1, TCI, b2, ..., TCIb8 ⁇ described in Table 3 can be used to indicate spatially related parameters of information from another TRP, such as TPR2.
  • the UE obtains the first information and the correspondence between the first information and at least one spatially-related parameter or spatially-related parameter set.
  • the corresponding relationship includes one or more of Case 1 to Case 5 above.
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the first information may be indicated by one or more of the first signaling, the second signaling, and the third signaling, or may be other signaling instructions.
  • the UE determines the effective spatial related parameter set in the second step according to the second information in the third signaling, and uses the effective spatial related parameter set as the target related parameter set.
  • Step 1052 The UE determines the one or more target space-related parameters in the target space-related parameter set according to the state value of the first field in the first signaling.
  • the state value of the first word field is any one of the "value of TCI field" in the above Table 2 or Table 3.
  • the target related parameter set is determined, according to the correspondence between the Table 2 or Table 3, It can determine the TCI status ID corresponding to the status value of one of the TCI fields.
  • the corresponding TCI state ID value is a1.
  • Step 106 The UE receives the first channel according to the one or more target spatial correlation parameters.
  • the UE uses the TCI state ID a1 to receive the PDSCH.
  • the transmission for receiving the PCSCH may be the same as the prior art, and this embodiment will not describe it in detail.
  • the base station is configured to associate the DMRS port CDM group with the TCI state ID / TCI table,
  • TCI List / Table 00 TCI list1 ⁇ TCIa1, TCI2a, ..., TCI8a ⁇ / TCItable1 01 TCI list2 ⁇ TCIb1, TCIb2, ..., TCIb8 ⁇ / TCItable2
  • DMRS type 2
  • the UE is instructed up to 3 DMRS ports CDM groups, and the association relationship is shown in Table 5 below:
  • TCI List / Table 00 TCI list1 ⁇ TCIa1, TCI2a, ..., TCI8a ⁇ / TCItable1 01
  • TCI list2 ⁇ TCIb1, TCIb2, ..., TCIb5 ⁇ / TCItable2 10
  • TCI list3 ⁇ TCIb6, TCIb7, ..., TCIb16 ⁇
  • the DCI signaling also includes a transport block (transport blocks) field, which is used to indicate CW (codeword) information (such as the number of transmitted CWs, etc.).
  • transport blocks transport blocks
  • CW codeword
  • the DCI signaling also includes an antenna port (antenna port) field, which is used to indicate DMRS port information.
  • antenna port antenna port
  • a possible correspondence is shown in FIG. 6 or refer to the table in 38.212.
  • step 1501 the UE first determines the DMRS port number based on the antenna port value and the corresponding relationship shown in FIG. 6, and then determines the DMRS port CDM group to which the DMRS port number belongs according to the DMRS port number, and then determines the DMRS port CDM The group determines the valid TCI set or table / list indicated by the current TCI field as the target spatial related parameter set.
  • the UE obtains the second word field in the first signaling, where the second word field is an antenna port (antenna port) field, and an antenna port value (antenna port value) indicated by the antenna port field, such as an antenna
  • the port value is 2, and the correspondence shown in FIG. 6 determines that the DMRS port corresponding to the antenna port value 2 is (0, 1); and then determines the CDM group to which the DMRS port (0, 1) belongs.
  • the pre-defined DMRS port CDM group group situation is as follows:
  • DMRS type 1 (supports up to 8 ports): DMRS port ⁇ 0, 1, 4, 5 ⁇ belongs to CDM group 0, and DMRS port ⁇ 2, 3, 6, 7 ⁇ belongs to CDM group 1;
  • DMRS type 2 (supports up to 12 ports): DMRS port ⁇ 0,1,6,7 ⁇ belongs to CDM group 0, DMRS port ⁇ 2,3,8,9 ⁇ belongs to CDM group 1, DMRS port ⁇ 4,5, 10,11 ⁇ belongs to CDM group 2.
  • the UE can determine that it can belong to the CDM group 0 of DMRS type 1 or DMRS type 2 according to the DMRS port number (0, 1), and then determine the type of DMRS according to the DMRS downlink Config of RRC signaling. For example, if it belongs to DMRS type1, the UE determines that the DMRS port CDM corresponding to the antenna port value 2 belongs to the CDM group0 of DMRS type1, which determines that Table 4 in Table 4 and Table 5 above is an effective association table. Then, according to the binary representation "00" of CDM group 0, determine the TCI list 1 or TCI corresponding to the first spatial correlation parameter "00" ⁇ TCI aa1, TCI aa2, ..., TCI aa8 ⁇ .
  • the TCI list 1 or TCI table 1 is also called a target-related parameter set.
  • step 1052 the UE determines the target spatial related parameter in the target spatial related parameter set according to the state value of the first field in the first signaling.
  • the UE obtains the state value indicated by the first field of the first signaling as "00", the TCI state ID corresponding to "00" in the target space related parameter set TCI list 1 or TCI table 1 is a1 Then, it is determined that one spatial correlation parameter a1 in the first spatial correlation is the target spatial correlation parameter, and the UE receives the PDSCH using the TCI state ID a1.
  • the base station configures the association relationship between CORESET ID and TCI state ID / TCI table.
  • CORESET ID value TCI list / TCI table CORESET ID1 TCI list1 ⁇ TCIa1, TCI2a, ..., TCI8a ⁇ / TCItable1 CORESET ID2 TCI list 2 ⁇ TCI b1, TCI b2, ..., TCI b8 ⁇ / TCI table 2 ... ... CORESET ID TCI list 2 ⁇ TCI b6, TCI b10, ..., TCI b16 ⁇ / TCI table X
  • the UE obtains the first signaling, and determines the first information according to the first signaling, where the first information is a CORESET ID (CORESET ID) where the first signaling is located.
  • CORESET ID CORESET ID
  • the UE determines the target spatial related parameter set according to at least one signaling, specifically including: the UE determines the TCI indicated by the current first field according to the CORESET identifier where the first signaling is located and the association shown in Table 6 Or TCI as the target spatial related parameter set, and the spatial related parameter included in the target spatial related parameter set is the first spatial related parameter.
  • the associated first spatial correlation parameter is TCI list 1 or TCI table 1; when the first word of the first signaling When the CORESET ID of the domain is 2, the associated first spatial correlation parameter is TCI list 2 or TCI table 2.
  • the target spatial related parameter set is TCI list2 or TCI table 2
  • the first spatial related parameter is ⁇ TCI b1, TCI b2, ..., TCI b8 ⁇ .
  • the above step 1052 specifically includes: the UE according to the state value of the first field in the first signaling, for example, the state value is "001", then in the target space related parameter set ⁇ TCIb1, TCIb2 , ..., TCI state ID corresponding to the TCI state value "001" in TCI b8 ⁇ is b2, that is, the TCI state ID b2 is determined as the relevant parameter of the target space.
  • the base station needs to configure the association relationship between search ID and TCI state / ID / TCI table.
  • association relationship As shown in Table 7, there is shown an association relationship between search ID and TCI state / ID / TCI table, and the association relationship can be pre-defined by agreement.
  • the above step 1051 specifically includes: the UE determining the TCI list or TCI indicated by the current first field according to the value of the CORESET identifier where the first signaling is located and the association relationship shown in Table 7, which is the target space related parameter Collection, the spatial correlation parameters included in the target spatial correlation parameter set are the first spatial correlation parameters.
  • the target space related parameter set is TCI list 2 or TCI table 2
  • the first space related parameter Including ⁇ TCI b1, TCI b2, ..., TCI b4 ⁇ or ⁇ TCI b1, TCI b2, ..., TCI b8 ⁇ .
  • the above step 1052 specifically includes: according to the state value of the first field in the first signaling, for example, if the state value is "001", then the TCI state value in the target space-related parameter set " 001 "has a corresponding TCI state ID of b2, that is, it is determined that the TCI state ID b2 is a target space related parameter.
  • Case 4 In the case where the first information is the DMRS port identifier indicated by at least one second field in the first signaling
  • Case 5 In the case where the first information is at least one of the first signaling
  • the second information is used to configure the correspondence between the codeword and the space-related parameters. The process of the UE determining one or more target space-related parameters will be This is explained in detail in the following examples.
  • the terminal receives the first signaling sent by the base station.
  • the first signaling is configured with a state value of the first field.
  • the terminal selects the candidate spatial-related parameters or Obtain one or more target spatial correlation parameters from the spatial correlation parameter set, and use the one or more target spatial correlation parameters to receive the channel, thereby solving the problem that multiple DCI signaling schedules a piece of data, and each piece of data comes from a different TRP.
  • the indication of spatially related parameters in the scenario, and the indication of QCL information when the data scheduled by a DCI signaling comes from different TRP scenarios, or the indication of QCL information in multi-beam / multi-link / multi-layer transmission.
  • a candidate state value corresponding to a plurality of spatial correlation parameters can also save the indication overhead. For example, when originally indicating 16 spatial correlation parameters, it takes 4 bits of space, such as "0000", and the 16 configured by this method This correspondence requires only 3 bits of space, so the method provided in this embodiment can ensure the flexibility of the TCI information indication while saving the indication overhead.
  • each embodiment of the present application only exemplifies the case where one or more spatial correlation parameters are in the TCI state, and may also include other target spatial correlation parameters, such as the TCI state described in this embodiment, which can be replaced It is a QCL or a reference signal having a QCL relationship with the first channel.
  • the UE obtains the first information to determine the QCL information currently indicating the UE, and the QCL information includes two reference signals RS, such as RS1 and RS9, the target spatial related parameter RS1 and RS9, the UE receives the first channel according to RS1 and RS9.
  • one TCI ID may include two reference signals, such as RS1 and RS2, which are used to indicate the transmission of different beams, respectively, and may be used for single TRP or multiple TRP scenarios.
  • the reservation refers to the antenna port value.
  • the DMRS port number, the number of DMRS CDM groups, or the number of codewords are temporarily not filled, and specific values will be filled in later determination or setting, and after filling in specific values, one or more target spatial correlations can be determined according to the corresponding relationship parameter.
  • This embodiment is similar to Embodiment 1, except that, in the second signaling sent by the base station in step 102, among the M spatially-related parameter sets configured in the second signaling, there is at least two spaces in at least one spatially-related parameter set
  • the related parameter corresponds to at least one state value among the plurality of candidate state values in the first word field, for example, the TCI word field state value "000" corresponds to the TCI state IDs c1 and c9.
  • the data scheduled by one DCI comes from two different TRP, namely non-coherent joint transmission (Non Coherent Joint Transmission (NCJT) scenarios, in which the base station configures the association relationship and the UE determines the target space related parameters
  • NJT Non Coherent Joint Transmission
  • step 201 The base station sends first signaling.
  • This step is the same as step 101 in the foregoing first embodiment, and is not repeated here.
  • Step 202 The base station sends second signaling.
  • the base station uses the second signaling to configure M spatially related parameter sets, among the M spatially related parameter sets, P second spatially related parameters and Q third spatially related parameters. Further, there is a correspondence between the P second spatial correlation parameters and the first value, and there is a correspondence between the Q third spatial correlation parameters and the second value.
  • the first value and the second value are any one of the following: the DMRS port number indicated by the second field, or the ID of the group to which the DMRS port belongs, or codeword information; the ID of the control resource set ; The identification of the search space set; or the antenna panel identification.
  • Table 8 For example, a specific configuration method is shown in Table 8, Table 9, and Table 10.
  • Table 10 shows eight sets of fourth spatial correlation parameters, and each set of fourth spatial correlation parameters includes two TCI state IDs, which can be used to indicate beam transmission from two TRPs.
  • the number of TCI state IDs corresponding to each candidate state value may be two; as shown in Table 10, the TCI state ID corresponding to one candidate state value
  • the number can be 2 or 3 or more.
  • the specific number can be determined by the configuration of the base station.
  • TCIb8 ⁇ composed of eight third spatially related parameters, such as As shown in Table 9, the space-related parameter indication information corresponding to a single TRP2; in addition, there are 8 sets of space-related parameter sets composed of the fourth space-related parameters ⁇ TCI c1 + c9, TCI c2 + c10, ..., TCI c8 + c6 ⁇ As shown in Table 10, the space-related parameter indication information corresponding to the two TRPs.
  • step 203 the base station sends third signaling.
  • Step 204 The UE receives at least one signaling sent by the base station, where the at least one signaling includes first signaling, second signaling, and / or third signaling.
  • the step 203 and the step 204 are the same as the step 103 and the step 104 of the foregoing first embodiment, and will not be repeated here.
  • Step 205 The UE determining one or more target spatial-related parameters in the first spatial-related parameters includes:
  • One possible implementation includes:
  • the first spatial correlation parameters include: a second spatial correlation parameter (TCI a1) and a third spatial correlation parameter (TCI b1) and a set of fourth spatial correlation parameters (TCIc1 + c9).
  • the target spatial related parameters are determined according to the transport block field and the antenna port field:
  • the target spatial correlation parameter is the second spatial correlation parameter, such as TCI.
  • the target spatial related parameters are determined according to the transport block field and the antenna port field.
  • the antenna port field is 0 to 3
  • the value of the DMRS port CDM group indicator indicated by the antenna port field is the first
  • the second value is "01”
  • the target spatial correlation parameter is a third spatial correlation parameter, for example, TCI b1.
  • the target spatial related parameters are determined according to the transport block field and the antenna port field.
  • the parameters are fourth spatially related parameters, such as TCIc1 and c9.
  • the base station configures the association between the value of the ID of the CDM group to which the DMRS port belongs and the TCI status ID, where the ID of the CDM group to which the DMRS port belongs can be expressed by the DMRS port CDM group, for example, in binary "0 / 1 "to indicate the association between DMRS, CDM, group and TCI, ID / TCI table, as shown in Table 11 and Table 12 below, for a single TRP.
  • DMRS type (DMRS type)
  • the UE is instructed to have at most 2 DMRS ports / CDM groups.
  • "00" represents the first value
  • "01” represents the second value
  • the first value corresponds to the second spatially related parameters, including TCI a1 to a8, optional, these
  • the set of related second spatial correlation parameters is represented as "TCI list x1" or "TCI table 1".
  • the second value corresponds to the third spatial correlation parameter, including the spatial correlation parameters TCI b1 to b8.
  • the set of these associated third spatial correlation parameters is represented as "TCI list x2" or "TCI table 2".
  • TCI list can be a subset of "TCI” table, or the same as “TCI table”, or the same as TCI table
  • TCI table can be a subset of "TCI” table, or the same as “TCI table”, or the same as TCI table
  • TCI in the ID has some intersections, and this application does not restrict it.
  • association relationship can also be as shown in Table 12, which shows the correspondence between the DMRS port CDM group value and one or more spatial related parameters TCI ID / TCI table used in the multi-TRP transmission scenario relationship.
  • TCI List / Table 00 TCI list x1 ⁇ TCI c1, TCI c2, ..., TCI c8 ⁇ 01 TCI list x2 ⁇ TCI c9, TCI c10, ..., TCI c16 ⁇
  • the UE configured by the base station is instructed to correspond to at most 3 values and the TCI status ID, that is, except for the first value and the first
  • the third value is also included.
  • the third value is "10".
  • Table 13 and Table 14 show the relationship between the DMRS port CDM group value and various spatial related parameters when the DMRS type is 2 for single TRP and multi-TRP scenarios, respectively.
  • the specific process includes:
  • Step 2051 The UE determines the identifier of the DMRS port group according to the second field in the first signaling
  • Step 2052 The UE determines the associated one or more spatial correlation parameters according to the identifier of the DMRS port group as candidate spatial correlation parameters;
  • Step 2053 The UE determines the first spatial related parameter according to the first field of the first signaling
  • Step 2054 The UE takes the intersection of the candidate spatial correlation parameter and the first spatial correlation parameter to obtain one or more target spatial correlation parameters.
  • the UE acquires a second word field in the first signaling as an antenna port word field, where the value of the antenna port word field is 10, according to Table 5 in Embodiment 1 above As shown, the DMRS port number corresponding to the antenna port value 10 is 0-3.
  • step 2052 the CDM group where the port number 0-3 is located is determined according to the CDM group of the DMRS port predefined in the protocol:
  • the agreement provides:
  • DMRS type 1 (supports up to 8 ports): DMRS port ⁇ 0, 1, 4, 5 ⁇ belongs to CDM group 0, and DMRS port ⁇ 2, 3, 6, 7 ⁇ belongs to CDM group 1;
  • DMRS port ⁇ 0,1,6,7 ⁇ belongs to CDM group 0
  • DMRS port ⁇ 2,3,8,9 ⁇ belongs to CDM group 1
  • DMRS port ⁇ 4,5,10 , 11 ⁇ belongs to CDM group 2.
  • the UE determines that the DMRS port number is 0-3 and belongs to CDM group 0 or 1 according to the above regulations. Further, whether the CDM group 0 or 1 belongs to DMRS type 1 or 2 can be determined by the DCI configured by the base station. For example, the base station informs the UE that the current DMRS type is 2 and supports multi-TRP data transmission.
  • the UE can determine that the candidate spatial-related parameters associated with CDM group 0 are TCI list x1 ⁇ TCI c1, TCI, c2, ..., TCI, c8 ⁇ , CDM group 1 related candidate spatial correlation parameters are TCI list x2 ⁇ TCI c9, TCI c10, ..., TCI c12 ⁇ .
  • the CDM group "0" is configured in the association relationship in Table 14 through the binary "00”
  • the CDM group "1" is configured in the association relationship in Table 14 through the binary "01”.
  • step 2053 the UE determines the first spatial related parameter according to the first field of the first signaling.
  • the first word field in the first signaling is "000”
  • the first spatial correlation parameters corresponding to the state value "000” are determined by the corresponding relationship in Table 10 above: TCI stateID c1 and c9.
  • step 2054 the UE takes candidate spatial correlation parameters TCI list x1 ⁇ TCI c1, TCI c2, ..., TCI c8 ⁇ , ⁇ TCI c9, TCI cc10, ..., TCI cc12 ⁇ and the first spatial correlation parameters TCI c1, c9
  • the common spatial correlation parameters are c1 and c9, then the UE determines that the target spatial correlation parameters indicated by the state value 000 of the first field are TCI c1 and c9.
  • steps 2051 and 2053 are executed simultaneously or sequentially, for example, step 2053 is executed first, and then steps 2051 and 2052 are executed.
  • the DCI may indicate other values to determine the target spatial related parameter.
  • the UE indicates that the antenna port value (antenna port value) in the DCI information is 2, and the UE determines that the antenna port value is 2, the corresponding DMRS ports are (0, 1), which belongs to CDM group 0 and DMRS type 1;
  • the UE determines to use the TCI list x1 or table 1 shown in Table 13 according to the CDM group 0, and finally the UE parses the target space according to the TCI state ID corresponding to the first word field state value "000" in the first signaling
  • the relevant parameter is TCI a1.
  • Step 206 The UE receives the first channel according to the target spatial correlation parameter.
  • the UE uses the TCI state ID c1 to receive the PCSCH data corresponding to the CDM group 0, and uses the TCI state ID ID c9 to receive the PCSCH data corresponding to the CDM group 1.
  • the UE uses the TCI status ID a1 to receive PDSCH data.
  • the first signaling and the third signaling are used to indicate support for single TRP and multiple signaling.
  • the target spatial related parameters transmitted by each TRP make TCI information more flexible without increasing the overhead of the indication information.
  • the indicated candidate status values of the TCI field include 8 status values from "000” to "111", respectively corresponding to 8 TCI status IDs, where the TCI status IDs from a1 to a4 can correspond to the beams of TRP1
  • the TCI state IDs from b1 to b4 may correspond to the beam transmission of TRP2.
  • FIG. 2c For a specific transmission scenario, see FIG. 2c.
  • the specific determination method includes: the first spatial correlation parameter includes a second spatial correlation parameter (TCIa1) and a third spatial correlation parameter (TCIc1 + c9).
  • the target spatial related parameters are determined according to the transport block field and the antenna port field:
  • the target spatial correlation parameter is the second spatial correlation parameter, for example, TCI a1.
  • the target spatial related parameters are determined according to the transport block field and the antenna port field.
  • the target spatial correlation parameter is the fourth spatial correlation parameter, For example, TCIc1 + c9.
  • the manner of indicating the received channel will be different according to different forms of the target spatial related parameters.
  • the following methods can also be used:
  • the first spatially-related parameter is a TCI state ID
  • the TCI state ID indicates one or more QSI (Quasi-collocation, QCL) information
  • the UE may use one or more QCL information
  • Determine the target space related parameters for example, the TCI state ID includes QCL1 and QCL2, where QCL1 and QCL2 may correspond to TRP1 and TRP2, respectively, and then the UE may receive data of the corresponding channel according to the instructions of the QCL1 and QCL2.
  • the target spatial correlation parameter is one or more RSs out of the K RSs indicated by the QCL information.
  • the QCL information indicates that the two spatial correlation parameters are RS1 and RS2 respectively, corresponding to two different With TRP transmission, the UE can complete the beamforming or receiving process on the receiving side according to the QCL information. It should be understood that the UE may receive the target reference signal according to the received beam information of the source reference signal indicated by the QCL information.
  • TCI ID indicating one TCI state is as follows:
  • Each TCI indicates one piece of QCL information, which may be one or more of multiple types, and each type of QCL information includes only one reference signal. For example, a certain TCI ID is indicated in the QCL information, then the TCI ID a1 in the embodiment of the present application may be the reference signal RS1.
  • a state value in a TCI field is associated with two TCI IDs, and the TCIstate indicated by each TCI ID is the same as the existing protocol.
  • Method 2 A state value in a TCI field is associated with a TCI ID.
  • the TCI indicated by the TCI ID includes QCL information.
  • the QCL information may be one or more of the above QCL types A to D, and each Various types of QCL information include multiple reference signals.
  • Method 3 A state value of a TCI field is associated with a TCI ID, and the TCI state indicated by the TCI ID includes two QCL information, and the QCL information may be one or more of the above QCL types A to D, and Each type of QCL information includes only one reference signal.
  • This embodiment also provides another method of information transmission, which is used to instruct the selection of the currently scheduled target space-related parameters in a scenario in which DCI scheduled data comes from a single or multiple TRPs.
  • the method provided in this embodiment may be applied to the technical scenario of dynamically selecting a transmitting node (Dynamic Point Selection (DPS) and NCJT).
  • DPS Dynamic Point Selection
  • NCJT NCJT transmission mode
  • a DCI signaling schedule a piece of data may come from a TRP, or from another dynamic TRP.
  • the candidate status value of each first field can indicate At least one TCI state ID, and the at least one TCI state ID may support a single TRP or multiple TRPs.
  • Table 16 shows the correlation between a candidate state value of each TCI field and two TCI IDs.
  • the two TCI IDs can support beam transmission of a single TRP or multiple TRPs.
  • it also includes the association between the candidate status value of a TCI field and a TCI ID, that is, the situation that directly indicates a TCI ID, for example, to support the CDM group to which two DMRS ports from a TRP belong to share a QCL.
  • association relationship may be a direct association relationship or an indirect association relationship.
  • indirect association relationship refers to an association relationship obtained through other one or more intermediate quantities, for example, the intermediate quantity is TRP ID or cell ID, and so on.
  • the UE receives at least one signaling sent from the base station, including the first signaling, the second signaling, and the third signaling, and the content of the first signaling and the third signaling is the same as that in the foregoing first and second embodiments , Not detailed here.
  • the process of the UE determining one or more spatially-related parameters and serving as the target spatial-related parameters is as follows:
  • the base station configures the association relationship between the DMRS port, CDM group, and TCI status ID through the third signaling.
  • the association relationship may also be predefined by the protocol, as shown in Table 17 and Table 18 below (this association relationship includes but is not limited to The embodiment in the table below).
  • TCI List / Table 00 TCI list C1 ⁇ TCI c1, TCI c2,..., TCI c8 ⁇ 01
  • TCI List / Table 00 TCI list1 ⁇ TCIc1, TCIc2, ..., TCIc8 ⁇ 01 TCI list 2 ⁇ TCI c9, TCI c10, ..., TCI c12 ⁇ 10 TCI list 3 ⁇ TCI c13, TCI c14, ..., TCI c16 ⁇
  • any TCI ID associated with each DMRS port CDM group in the above table is different.
  • the number of TCI IDs associated with each DMRS port CDM group in the above table may be greater than the number of TCI IDs associated with TCI table.
  • the third signaling (DCI signaling) sent by the base station includes the TCI field, which is used to indicate the beam information of the received data.
  • the third signaling may be the first signaling.
  • the DCI signaling (such as the third signaling) further includes a second word field, such as a transport block field, which is used to indicate codeword (CW) information, such as the number of codewords.
  • CW codeword
  • the second word field in the DCI signaling further includes an antenna port field, which is used to indicate DMRS port information, as shown in Table 5 of Embodiment 1 above.
  • the determination process includes:
  • the UE determines the CDM group number Z where the DMRS port of the PDSCH scheduled by the current DCI is located according to the relationship between the DMRS port and the DMRS port CDM group predefined in the protocol and at least one second field in the third signaling;
  • the state value X of the TCI field in the command, and the state value X correspond to at least one spatially related parameter.
  • the association relationship shown in Table 16 determines the TCI ID X1 and TCI ID X2 corresponding to the state value X; the UE then refers to Table 17 Or the association relationship in Table 18 and the CDM group number Z, determine that the CDM group Z is associated with TCI ID X2, then the UE determines that the effective TCI ID is X2, and finally the UE receives the PDSCH according to the TCI ID X2.
  • the value of the antenna field carried in the second field in the third signaling is 2
  • the state value of the first field in the first signaling is 0, and the binary representation is "000 "
  • the DMRS port number corresponding to the antenna port value2 is determined to be (0,1) according to the above relationship.
  • DMRS type 1 (supports up to 8 ports): DMRS port ⁇ 0, 1, 4, 5 ⁇ belongs to CDM group 0, and DMRS port ⁇ 2, 3, 6, 7 ⁇ belongs to CDM group 1;
  • DMRS type 2 (supports up to 12 ports): DMRS port ⁇ 0,1,6,7 ⁇ belongs to CDM group 0, DMRS port ⁇ 2,3,8,9 ⁇ belongs to CDM group 1, DMRS port ⁇ 4,5,10, 11 ⁇ Belong to CDM group 2.
  • the UE determines that the current DMRS port (0, 1) belongs to the CDM group 0.
  • the UE determines to use TCI table to parse the state value and associate the TCI state ID to c1 according to the CDM group 0.
  • the UE uses the beam corresponding to the TCI ID c1 to receive the PDSCH.
  • the DMRS port indicated by the antenna field is in the CDM group 1, it determines that the beam corresponding to the TCI ID c9 used by the UE receives the PDSCH.
  • Table 20 shows a DMRS port indicated by the antenna port field in CDM group 0 and CDM group 1, and the TCI ID is determined to be c1 + c9.
  • the UE in the case where data scheduled by one DCI comes from different TRPs, the UE combines the association relationship between the candidate state value of the first field semi-statically configured by the base station and one or more spatially related parameter sets by At least one antenna port field or transmission block field of the first signaling, and the relationship between the CDM group of the DMRS port and the TCI ID, obtain the currently valid target TCI state ID, and transmit the beam as a target spatial related parameter.
  • the method ensures the flexibility of the TCI information indication, and does not increase the overhead of the indication information.
  • the method provided in this embodiment is different from the above-mentioned embodiment, mainly in step 105, the UE determines one or more target spatial correlation parameters in the first spatial correlation parameters, and needs to determine the target spatial correlation parameters according to the first information .
  • the technical scenarios applied in this embodiment include but are not limited to DPS scenarios and NCJT scenarios.
  • the method includes:
  • the UE receives at least one signaling sent by the base station, where the at least one signaling includes first signaling, second signaling, and third signaling.
  • the first signaling includes a first word field
  • the first word field includes a target state value
  • the target state value is used to indicate the reception of the first spatial-related parameter of the first channel.
  • the first word field is a TCI word field
  • the target state value is any one of 000, 001, 010, 011, 100, 101, 110, and 111.
  • the first signaling also includes first information, and the first information is at least one second field of the first signaling.
  • the second word field is a transport block (transport block) word field or an antenna port (antenna port) word field.
  • the transport block word field is used to determine the information of the number of codewords (codewords, CWs) included in the PDSCH currently scheduled by the first signaling.
  • the antenna port word field and the codeword number information may be used to determine whether the PDSCH scheduled by the first signaling is from a single TRP or multiple TRPs.
  • the UE determining one or more target spatial-related parameters in the first spatial-related parameters according to the first information includes the following various possible implementation manners:
  • the first spatial correlation parameters include a second spatial correlation parameter and a third spatial correlation parameter.
  • the status value of one TCI field configured by the base station corresponds to two TCI status IDs, and stipulates:
  • the target spatial correlation parameter is the second spatial correlation parameter; and / or,
  • the target spatial correlation parameter is a second spatial correlation parameter and a third spatial correlation parameter, where the first CW is received according to the second spatial correlation parameter, and the second CW is based on the third Spatial related parameter reception.
  • the state value of the TCI in the first signaling is "000", and when the UE parses the number of CWs according to the transport block field to 1, the second spatial correlation parameter TCI is used by default to receive the first channel.
  • the number of CWs is 2
  • the default second spatial correlation parameter TCI c1 is used to receive the first channel
  • the third spatial correlation parameter TCI c5 is used to receive the first channel.
  • the target spatial correlation parameter is TCI c1 and c5.
  • the TCI ID value parsed by the UE is shown in Table 21 below, where the TCI ID is used to receive the PDSCH:
  • TCI “strate ID” c1 is abbreviated as “TCI” c1
  • CW1 represents the first codeword
  • CW2 represents the second codeword.
  • the target spatial correlation parameter is the second spatial correlation parameter
  • the target spatial correlation parameter is a second spatial correlation parameter, where CW1 is received according to the second spatial correlation parameter, CW2 is received according to the second spatial related parameters;
  • the target spatial correlation parameters are the second spatial correlation parameter and the third spatial correlation parameter, where CW1 is based on the Two space-related parameters are received, and CW2 is received according to the second space-related parameters.
  • the TCI in the TCI ID associated with the TCI status value “000” indicated in the TCI field in the first signaling is used by default, and the TCI c1 is the target space related parameter ;
  • one or more target spatial related parameters are determined according to the antenna port number indicated by the antenna port field.
  • the TCI ID value parsed by the UE is shown in Table 22 below, where the TCI ID is used to receive the PDSCH:
  • the maximum length (max) is 2
  • the antenna port (antenna) field value (value) is at least one of ⁇ 4-31 ⁇ ;
  • the maximum length (max) is 1
  • the antenna port (antenna) field value (value) is at least one of ⁇ 2-31 ⁇ ;
  • the maximum length (max) is 2
  • the antenna port (antenna) field value (value) is at least one of ⁇ 6-63 ⁇ , which can represent the NCJT scenario.
  • this implementation manner can also be another alternative implementation manner, specifically including:
  • the target spatial correlation parameter is the first spatial correlation parameter, for example, TCI c6;
  • the target spatial correlation parameter is a second spatial correlation parameter, where CW1 is based on the second spatial correlation parameter Receive, CW2 receives according to the second spatial related parameters;
  • the target spatial correlation parameters are the second spatial correlation parameters and the third spatial correlation parameters, where CW1 is based on Receiving related parameters, CW2 receives according to the third spatial related parameters.
  • the UE determines one or more spatially-related parameters in the first spatially-related parameters according to two second wordfields of the first signaling, the two second-wordfields are an antenna port wordfield and a transport block Word field.
  • the UE determines the information according to the number of CWs according to the transport block word field, and then according to the antenna port word field, and the second information in the foregoing embodiment, the second information is used to configure The correspondence between the first information and the one or more spatially related parameters determines the target spatially related parameters.
  • this method is applicable to scenarios where the NCJT is restricted to different CWs.
  • the first spatial correlation parameter includes a second spatial correlation parameter and a third spatial correlation parameter (TCI5).
  • the TCI ID receiving channel can now correspond to a single TRP single beam transmission scenario.
  • the relevant parameter of the target space is TCI c4.
  • the target spatial related parameters can be analyzed and determined according to the method of Embodiment 3 above.
  • the target spatial correlation parameter is a second spatial correlation parameter, where CW1 is received according to the second spatial correlation parameter, and CW2 is based on the second Spatial related parameter reception.
  • the target spatial correlation parameter is a third spatial correlation parameter, where CW1 is received according to the third spatial correlation parameter and CW2 is based on the third spatial Receiving related parameters;
  • the DMRS CDM group identifier includes a first value 00 and a second value 01
  • the target spatial related parameters are the second spatial related parameters and the third spatial related parameters, where CW1 is based on the second Received spatially related parameters, CW2 received according to the third spatially related parameter.
  • the TCI ID value parsed by the UE is shown in Table 23 below, where the TCI ID is used to receive the PDSCH:
  • the method may be further limited.
  • the number of codewords is 2
  • the method for determining one or more spatial correlation parameters TCI ID is shown in FIG. 8, for example:
  • the maximum length (max) is 2
  • the antenna port (antenna) field value (value) is at least one of ⁇ 4-31 ⁇ ;
  • the maximum length (max) is 1
  • the antenna port (antenna) field value (value) is at least one of ⁇ 2-31 ⁇ ;
  • the maximum length (max) is 2
  • the antenna port (antenna) field value (value) is at least one of ⁇ 6-63 ⁇ , which can represent the NCJT scenario.
  • This embodiment provides three methods for determining the target spatial related parameters according to the first information.
  • the UE first determines the number of codewords through the transport block field indicated by the second field, and then determines each codeword and TCI according to the pre-configured
  • the association relationship determines the TCI ID used by each codeword, thereby enabling the UE to quickly determine the target TCI ID in the scenario of single TRP transmission or multiple TRP, ensuring the flexibility of TCI information indication Without additional instruction overhead.
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the first information may be indicated by one or more of the first signaling, the second signaling, and the third signaling, or may be other signaling instructions.
  • This embodiment provides a special indication.
  • the difference is that, for the status value in the first field of the first signaling in a specific range, a specific space-related parameter is indicated as the target space Related parameters.
  • the candidate state value of the first field includes a first range and a second range
  • the target related parameter is a set value.
  • the state values of the first word field are 8 states from 000 to 111, wherein the first range includes 5 states ⁇ 000, 001, 010, 011, 100 ⁇ , and the second range includes ⁇ There are 3 states in 101, 110, 111 ⁇ .
  • the state value of the first word field is the first range, it is determined according to the methods of the above embodiments; when the state value of the first word field, such as "101", is the second range, then set The target spatial related parameter is set to a preset value TCI c4.
  • the UE when the UE configures the correspondence between the first information about the first signaling and one or more spatially-related parameters according to the second information, for example, the CDM group information where the DMRS port is located
  • the DMRS port number (DMRS port) determined by the antenna port field may be continuous or discontinuous. Regardless of whether the DMRS port numbers parsed by the UE according to the antenna port field of the first information are continuous, the above-mentioned methods of the first embodiment to the third embodiment may be used to obtain the target spatial related parameters.
  • the UE when the UE determines that the current number of codewords is 2 through the transport block field, it can parse to obtain the target TCI ID according to the method of Embodiment 3.
  • the number of the code words is 1, it is necessary to further determine the Number of DMRS CDM group. If the Number of DMRS CDM group is 1, and the associated DMRS port is (0,1), this is a continuous DMRS port number; Number of DMRS CDM group is 2, the associated DMRS port is (0,1, x....), Or (0,2), or (0,2,4,6), in this case, it is a discontinuous DMRS port number .
  • the target TCI ID can be determined and obtained according to the "third possible implementation manner" of the fourth embodiment.
  • the first field may also include multiple other state values, which are used to directly instruct the UE to use a certain state value to resolve its corresponding TCI ID This method is mainly used in a scenario where one TRP corresponds to multiple beams to transmit PDSCH.
  • the status value may also be called a status bit.
  • the CDM group information where the DMRS port is located may be pattern (MU information).
  • NCJT is not used for MU information, and NCJT is not used when DMRS CDM group number> CDM group number where DMRS port is located.
  • the DMRS port CDM group (DMRS port CDM group) may be an antenna panel (panel), and the ID of the DMRS port CDM group may be panel ID.
  • the antenna panel may also be called an antenna set, a radio transceiver unit (tansceiver unit TXRU) (or radio transceiver unit), an antenna unit, an antenna group, a horizontal antenna set, a vertical Antenna sets, antenna arrays, or antenna port sets, etc., the embodiments of the present application are not limited thereto.
  • association relationship between the DMRS port CDM group and at least one TCI ID can be replaced by the association relationship between the panel ID and the TCI ID. It can be understood that the related method for determining the relevant parameters of the target space is the same as that in the first to third embodiments, which will not be described in detail.
  • the UE when the UE includes only one panel, when determining one or more target space-related parameters, the UE also needs to determine the number of DMRS symbols (symbols) and each signal. To determine the information in the order. For example, when the number of DMRS symbols is 1, if there are two or more TCI IDs indicating the UE to receive the first channel at the same time, the UE can only support one of the TCI IDs when there is only one panel. Beam transmission.
  • One possible way of determining is that the UE defaults to all DMRS ports CDM groups according to the TCI status indicated by the first CDM group associated TCI ID is the target space related parameters; or, in all CDM groups the most ports CDM The TCI associated with the group receives the first channel for the target spatial related parameter.
  • the information transmission method provided in this embodiment of the present application is directed to different spatially related parameter sets, and the base station configures different association relationships through DCI signaling, for example
  • the base station configures M spatially-related parameter sets according to the second signaling, M ⁇ 1, which includes a mapping relationship between a candidate state value of each first word field and one or more TCI state IDs.
  • the UE according to at least one second word field in the first signaling, such as the antenna port word field and the transport block word field, and the identifier of the DMRS port CDM group indicated by the antenna port word field and the M space-related parameter sets The corresponding relationship between them determines the target spatial correlation parameter in the first spatial correlation parameter.
  • the target space related parameters include TCI state ID and QCL.
  • a candidate state value of the first word field may correspond to one or more spatially-related parameters, for example, the candidate state value 0 corresponds to TCI a1 (Embodiment 1), or corresponds to TCI c1 and c9 (Embodiment 2).
  • the value of the CDM group ID of a DMRS port corresponds to a space-related parameter or a set of space-related parameters.
  • the first value "00" of the DMRS port CDM group corresponds to TCI list 1 or TCI table 1
  • the CORESET ID and search space identifier of the first signaling are respectively associated with a space-related parameter or a set of space-related parameters to match single TRP or multi-TRP transmission scenarios .
  • a codeword can correspond to a spatially related parameter, for example, the first CW is associated with TCI ID1, and the second CW is associated with TCI ID2 (Embodiment 4).
  • the above embodiments of the present application can also support single TRP, single beam / link transmission.
  • the target spatial-related parameters in the first spatial-related parameters may be directly or indirectly determined, such as the three specific implementation manners of Embodiment 4. Understandably, other various implementations may also be included, for example, the target space is determined according to the value of the transport block word field, the value of the antenna port word field, and the value of the information indicated by the antenna port word field.
  • the methods of related parameters are different, and this application does not limit the various possible methods.
  • the device may be a terminal, such as a UE, or may be used for a component of a terminal device (for example, a chip).
  • the communication device may also be a network device, such as a base station, or a component that can be used for the network device.
  • the communication apparatus may implement the function or operation of the terminal in the foregoing embodiments, or may also implement the function or operation of the network device in the foregoing embodiments.
  • the communication device may include a receiving unit 901 and a processing unit 902.
  • the communication device may further include a sending unit, a storage unit, or other necessary unit modules.
  • the receiving unit 901 is used to receive first signaling
  • the processing unit 902 is used to acquire the first space One or more target spatial related parameters among the related parameters; and, receiving the first channel according to the target spatial related parameters.
  • the first signaling includes a first word field
  • the state value of the first word field is used to indicate the reception of the first spatial correlation parameter of the first channel
  • the state value of the first word field is the One of a plurality of candidate state values corresponding to a word field, at least one state value of the plurality of candidate state values corresponding to two or more spatially-related parameters.
  • the receiving unit 901 before receiving the first signaling, is further configured to receive second signaling, and the second signaling is used to configure M Spatially related parameter set, M ⁇ 1.
  • the ith spatial correlation parameter set in the M spatial correlation parameter sets includes Li spatial correlation parameters, each spatial correlation parameter in the Li spatial correlation parameters and the candidate state of the first field There is a correspondence between the values, 1 ⁇ i ⁇ M, Li ⁇ 2, and M, i, Li are all integers.
  • the one or more spatial correlation parameters of the first spatial correlation parameters determined in the processing unit 902 specifically include: determining one or more of the first spatial correlation parameters according to the first information Related parameters.
  • the first information is at least one of the following:
  • At least one second field in the first signaling At least one second field in the first signaling
  • the identifier of the control resource set where the first signaling is located
  • the identifier of the search space set where the first signaling is located
  • the status value of the first field is the status value of the first field.
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the first information may be indicated by one or more of the first signaling, the second signaling, and the third signaling, or may be other signaling instructions.
  • the spatially related parameters include: TCI status ID, QCL information or RS, etc.
  • the second word field is a transmission block word field or an antenna port word field
  • the transmission block word field is used to indicate the number of code words
  • the antenna port word field is used to indicate at least one DMRS port number
  • At least one second word field in the first signaling includes: a second word field of the first signaling is a transport block word field, or a second word field of the first signaling is an antenna port The word field, or two second word fields of the first signaling, one of the second word fields is the transport block word field, and the other second word field is the antenna port word field.
  • the processing unit 902 determines one or more spatial-related parameters in the first spatial-related parameters according to the first information, which specifically includes: the processing unit 902 One or more spatially related parameters in the first spatially related parameters are determined according to the first information and the second information.
  • the second information is carried by third signaling, and the second information is used to configure a correspondence between the first information and the one or more spatially-related parameters.
  • the second information may be pre-defined through a protocol.
  • the correspondence between the first information and the one or more spatially related parameters includes any one of the following:
  • the ID of the DMRS port group indicated by at least one second field in the first signaling and one or more relevant parameters of the target space may be the DMRS port belongs to The ID of the CDM group;
  • the first information may also be other information, such as transmission mode indication information, etc. Any simple extension or simple combination is within the protection scope of the present application.
  • the first information may be indicated by one or more of the first signaling, the second signaling, and the third signaling, or may be other signaling instructions.
  • the M spatial correlation parameter sets include P second spatial correlation parameters and Q third spatial correlation parameters, and the P second spatial correlation parameters have a corresponding relationship with the first value, There is a corresponding relationship between the Q third spatial correlation parameters and the second value:
  • the first value and the second value are any of the following:
  • the state value of the first field may also be included.
  • At least one set of the M spatially related parameter sets includes the P second spatially related parameters
  • At least one set of the M spatially related parameter sets includes the Q third spatially related parameters, or at least one set of the M spatially related parameter sets includes the P second spatially related parameters And the Q third spatial correlation parameters.
  • the first value, the second value, and the third value can all be represented by binary "0/1", such as 00.
  • the first spatial parameter includes a second spatial parameter and a third spatial related parameter, and the determining the first spatial related parameter according to the first information
  • One or more target spatial related parameters including: when the number of codewords indicated by the second field is 1, the target spatial related parameter is the second spatial related parameter or the first Spatially related parameters.
  • the target spatial related parameter is the second spatial related parameter and The third spatial correlation parameter
  • the target spatial related parameter is the second spatial related parameter
  • first codeword receives the first channel according to the second spatial correlation parameter
  • second codeword receives the first according to the third spatial correlation parameter channel
  • the target spatial related parameter is the second spatial related parameter
  • a second spatial correlation parameter and a third spatial correlation parameter wherein, the first codeword receives the first channel according to the second spatial correlation parameter, and the second codeword receives the first according to the third spatial correlation parameter channel.
  • the spatially related parameters are: transmission configuration indication TCI status, or quasi-co-location QCL information, or reference signal RS, where the RS is used to indicate the first channel QCL information.
  • the communication apparatus when used to implement an operation or function corresponding to a network device (such as a base station), it further includes a sending unit 903 for sending first signaling, the first A signaling includes a first word field, a state value of the first word field is used to indicate receiving a first spatial correlation parameter of the first channel, and a state value of the first word field corresponds to the first word field
  • a sending unit 903 is further configured to pass the first spatial correlation parameter
  • the first channel is sent by one or more target spatial related parameters in.
  • the first signaling is DCI signaling.
  • the sending unit 903 is further configured to send first information, where the first information is used to configure M spatially-related parameter sets, M ⁇ 1, where The i-th spatial correlation parameter set among the M spatial correlation parameter sets includes Li spatial correlation parameters, each of the Li spatial correlation parameters exists between the candidate state value of the first field Correspondence, 1 ⁇ i ⁇ M, Li ⁇ 2, and M, i, Li are all integers.
  • the second signaling is RRC signaling, or RRC signaling and MAC-CE signaling.
  • the sending unit 903 is further configured to send third signaling, where the third signaling includes second information, and the second information is used to configure The correspondence between the first information and the one or more spatially related parameters.
  • the third signaling is DCI signaling.
  • the third signaling includes the first field.
  • the third signaling includes a transport block word field, and the transport block word field is used to indicate codeword information, such as the number of codewords.
  • the third signaling includes an antenna port field, and the antenna port field is used to indicate DMRS port information, such as a DMRS port number.
  • the communication device may be the terminal device in the foregoing embodiment, or may be a component (such as a chip) that can be used for the terminal device.
  • the communication device can realize the function or operation of the terminal device in the foregoing embodiments.
  • the communication device may include a transceiver 1001 and a processor 1002; further, it may further include a memory 1003, which may be used to store code or data.
  • the transceiver 1001 may include a receiver 1011, a transmitter 1012, an antenna 1013 and other components (as shown in FIG. 12).
  • the communication device may further include more or less components, or combine certain components, or have different component arrangements, which is not limited in this application.
  • the processor 1002 is a control center of a communication device, and uses various interfaces and lines to connect various parts of the entire communication device, by running or executing software programs or modules stored in the memory 1003, and calling data stored in the memory 1003, to Perform various functions of the communication device or process data.
  • the processor 1002 may be composed of an integrated circuit (IC), for example, may be composed of a single packaged IC, or may be composed of multiple packaged ICs connected with the same function or different functions.
  • the processor 1002 may include only a central processing unit (CPU), or may be a GPU, a digital signal processor (DSP), and a control chip (such as a baseband chip) in the transceiver module The combination.
  • the CPU may be a single computing core, or may include multiple computing cores.
  • the transceiver 1001 is used to establish a communication channel for the communication device to connect to the communication network through the communication channel, thereby achieving communication transmission between the communication device and other devices.
  • the transceiver 1001 may be a module that completes the transceiver function.
  • the transceiver 1001 may include a communication module such as a wireless local area network (WLAN) module, a Bluetooth module, a baseband module, and a radio frequency (RF) circuit corresponding to the communication device, Used for wireless LAN communication, Bluetooth communication, infrared communication, and / or cellular communication system communication, such as wideband code division multiple access (WCDMA) and / or high speed downlink packet access (high speed downlink) packet, access, HSDPA).
  • WCDMA wideband code division multiple access
  • HSDPA high speed downlink packet access
  • the transceiver 1001 is used to control communication of various components in a communication device, and can support direct memory access.
  • the various transceiver modules in the transceiver 1001 generally appear in the form of integrated circuits (integrated circuits) chips and can be selectively combined without having to include all transceiver modules and corresponding Antenna group.
  • the transceiver 1001 may only include a baseband chip, a radio frequency chip, and a corresponding antenna to provide communication functions in a cellular communication system.
  • a communication connection established via a transceiver, such as wireless local area network access or WCDMA access, the communication device may be connected to a cellular network or the Internet.
  • the communication module in the transceiver 1001 may be integrated into the processor, typically such as the APQ + MDM series platform provided by Qualcomm.
  • the radio frequency circuit is used to receive and send signals during information transceiving or talking. For example, after receiving the downlink signal of the network device, it is processed by the processor; in addition, the uplink data is sent to the network device.
  • the radio frequency circuit includes well-known circuits for performing these functions, including but not limited to antenna systems, radio frequency transceivers, one or more amplifiers, tuners, one or more oscillators, digital signal processors, codecs (codec) chipset, subscriber identity module (SIM) card, memory, etc.
  • the radio frequency circuit can also communicate with the network and other devices through wireless communication.
  • the transceiver 1001 may be used to implement all or part of the steps of the information transmission method in the foregoing embodiments.
  • the functions to be implemented by the receiving unit module 901 in FIG. 10 and the sending unit 903 in FIG. 10 may be implemented by the transceiver 1001 of the communication device or the transceiver 1001 controlled by the processor 1002.
  • the communication device may be a network device, such as a base station, or may be used for a component (eg, chip) of the network device.
  • the communication apparatus can realize the function or operation of the network device in the foregoing embodiments.
  • the communication device may be composed of a transceiver 1001, a processor 1002, and further, may further include a memory 1003.
  • the memory 1003 may be used to store code or data.
  • the processor 1002 may use various interfaces and lines to connect various parts of the entire communication device, execute or execute the software programs or modules stored in the memory, and call the codes or data stored in the memory 1003 to execute each of the communication devices Functions or process data.
  • the processor 1002 may be a CPU, NP, or a combination of CPU and NP.
  • the processor 1002 may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the PLD may be a complex programmable logic device (complex programmable logic device (CPLD), a field programmable logic gate array (field-programmable gate array, FPGA), a general array logic (generic array logic, GAL), or any combination thereof.
  • CPLD complex programmable logic device
  • FPGA field programmable logic gate array
  • GAL general array logic
  • the memory 1003 may include volatile memory (volatile memory), such as random access memory (random access memory, RAM); and may also include non-volatile memory (non-volatile memory), such as flash memory (flash memory), Hard disk (HDD) or solid-state drive (SSD); the memory 1003 may also include a combination of the aforementioned types of memory.
  • volatile memory volatile memory
  • non-volatile memory non-volatile memory
  • flash memory flash memory
  • HDD Hard disk
  • SSD solid-state drive
  • a program, code, or data may be stored in the memory, and the processor 1002 in the communication device may implement the function of the communication device by executing the program or code.
  • the transceiver 1001 may be used to receive or send signaling.
  • the transceiver 1001 may send signaling or data to a terminal device or other communication device under the control of the processor 1002, or receive signals or data sent by the terminal device or other communication device.
  • the processor 1002 and the transceiver 1001 may be individually or coupled to implement all or part of the steps in the communication method in the foregoing method embodiments.
  • the processor 1002 may send the first signaling, the second signaling, and the third signaling, and send the generated by the processor 1002 through the transceiver 1001. First signaling, second signaling, and third signaling.
  • the function to be implemented by the sending unit 903 in FIG. 10 may be implemented by the transceiver 1001 of the communication device or the transceiver 1001 controlled by the processor 1002, and the function to be implemented by the processing unit 902 may be implemented by The processor 1002 is implemented.
  • an embodiment of the present application further provides a computer storage medium, where the computer storage medium may store a program, and the program may include the information transmission method provided by the present application during the execution of the program. Part or all steps.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (read-only memory, ROM) or a random access memory (random access memory, RAM), etc.
  • embodiments of the present application also provide a computer program product containing instructions that, when run on a computer, cause the computer to perform the steps of the information transmission method described in the foregoing embodiments.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present invention are generated.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmit to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, Solid State Disk (SSD)) or the like.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a DVD
  • a semiconductor medium for example, Solid State Disk (SSD)

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Abstract

公开了一种信息传输方法、装置和设备，所述方法包括：终端接收第一信令，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数；所述终端获取第一空间相关参数中的一个或多个目标空间相关参数，并根据该一个或多个目标空间相关参数接收第一信道。本方法中，终端通过接收基站发送的第一信令，获取多个空间相关参数中的目标空间相关参数接收第一信道，从而解决了多个DCI信令各调度一份数据，每份数据来自不同TRP的场景时的QCL信息指示问题。

Description

一种信息传输方法、装置和设备
本申请要求于2018年11月2日提交中国专利局、申请号为201811303305.4、发明名称为“一种信息传输方法、装置和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其是涉及一种信息传输方法、装置和设备。
背景技术
随着智能终端中视频业务的出现，当前的频谱资源已经难以满足用户对容量需求的***式增长，具有更大的可用带宽的高频频段比如毫米波频段，日益成为下一代通信***的候选频段。另一方面，现代通信***通常使用多天线技术来提高***的容量和覆盖，以便改善用户的体验。此外，使用高频频段还可以大大减小多天线配置的尺寸，从而便于站址获取和更多天线的部署。然而，与现有长期演进(Long Term Evolution，LTE)***的工作频段不同的是，高频频段将导致更大的路径损耗，特别是大气、植被等因素的影响更进一步加剧了无线传播的损耗。
为克服高频频段带来的传播损耗，一种基于波束赋形(Beamforming，BF)技术的信号传输机制被采用，以通过较大的天线增益来补偿信号传播过程中的损耗。其中，波束赋形的信号可以包括广播信号，同步信号，以及小区特定的参考信号等。
当信号基于波束赋形技术进行传输时，一旦用户发生移动，可能出现传输信号对应的赋形波束的方向不再匹配移动后的用户位置，从而会导致接收信号频繁中断的问题。为了跟踪信号传输过程中的赋形波束的变化，一种基于波束赋形技术的信道质量测量及结果上报被引入。所述信道质量的测量可以基于波束赋形后的同步信号或小区特定参考信号来实现。其中，相比小区之间的切换，用户在不同赋形波束间的切换会更加动态和频繁，因此需要一种动态的测量和上报机制。
具体地，终端通过对基站发送的多个波束进行测量，并选择其中较优的N个波束，然后再将这些较优波束的波束测量信息上报给基站。其中，波束测量信息也可称为波束状态信息(beam state information，BSI)，内容主要包括波束索引、波束的参考信号接收功率(reference signal received power，RSRP)。如图1(e)所示为基站发送的波束的训练过程，反之如图1(d)所示，UE发送多个波束，基站对UE发送的多个波束进行测量，并且将UE发送的多个波束中较优的波束通知给UE。一般地，在标准中将基站发射侧的波束通过参考信号资源来表示，比如波束索引1，可以在标准中描述为参考信号资源索引1，终端侧的接收波束通过准共站或准共址假设信息中的空间接收参数来指示，其中，波束状态信息则可以描述为L1-RSRP related information。
如图1所示的波束训练过程可包括：
1)选择最优的N个波束对链路(Beam pair link，BPL)，其中一个BPL包括一个网络设备发射波束和一个终端(或终端设备)接收波束，或者，一个BPL包括一个 终端发射波束和一个网络设备接收波束的选择。用于该终端基于网络设备的波束扫描实现对网络设备发射波束和/或终端接收波束的选择，以及，网络设备基于终端的波束扫描实现对终端发射波束和/或基站接收波束的选择，如图1(a)所示的下行联合波束训练过程和1(b)所示上行联合波束训练过程。
2)发射波束的更新，所述发射波束可以为网络设备的发射波束，也可以为终端的发射波束。当该发射波束为网络设备发射波束时，如图1(e)所示的下行网络设备的波束训练过程，网络设备通过不同的发射波束向终端发送参考信号，终端通过同一个接收波束来接收网络设备通过不同的发射波束发送的参考信号，并基于这些接收参考信号确定网络设备的最优发射波束，然后终端将该最优发射波束反馈给网络设备，以便于网络设备对发射波束进行更新。
同理地，当所述发射波束为终端发射波束时，如图1(d)所示上行终端波束训练过程，终端通过不同的发射波束向网络设备发送参考信号，网络设备通过同一个接收波束来接收终端通过不同的发射波束发送的参考信号，并基于接收信号确定终端的最优发射波束，然后网络设备将该最优发射波束反馈给终端，以便于终端对发射波束进行更新。其中，上述通过不同的发射波束发送参考信号的过程可以称为波束扫描，基于接收信号确定最优发射波束的过程可以称为波束匹配。
3)接收波束的更新，所述接收波束可以为网络设备接收波束，也可以为终端接收波束。当该接收波束为网络设备接收波束时，如图1(f)所示上行网络设备的波束训练过程，终端通过同一个发射波束向网络设备发送参考信号，网络设备采用不同的接收波束接收终端发送的参考信号，然后基于接收信号确定网络设备的最优接收波束，以对网络设备的接收波束进行更新。当该接收波束为终端的接收波束时，如图1(c)所示的下行终端波束训练过程，网络设备通过同一个发射波束向终端发送参考信号，终端采用不同的接收波束接收网络设备发送的参考信号，然后基于接收信号确定终端的最优接收波束，以对终端的接收波束进行更新。
在下行信号的传输中，网络设备发射波束和终端接收波束均可能发生动态变化，且终端基于接收信号确定的最优接收波束可能包括多个，为了使终端确定自身的接收波束，终端可以将多个接收波束的信息反馈给网络设备，网络设备可以通过向终端发送波束指示信息来向终端指示终端接收波束。当终端采用模拟域的波束赋形时，终端可以基于网络设备发送的波束指示信息来精确的确定终端接收波束，从而可以节省终端设备的波束扫描时间，达到省电的效果。
当前的波束指示方法，仅考虑了只有一个传输接收点(Transmission Reception Point，TRP)时，在某时刻使用一个波束与该终端通信的传输方式。但是在新一代通信***，比如新空口(new radio，NR)中，可以支持网络设备同时使用不同的波束与一个终端进行通信，即多波束传输(multi-beam transmission)，或者也可以支持多个TRP为终端服务。其中，多个TRP与一个终端通信包括多个TRP同时与一个终端通信，或者是由动态选择节点(dynamic point selection，DPS)与一个终端通信。其中，多个TRP同时与一个终端通信的场景也可以称为非相干联合传输(Incoherent joint transmission，NCJT)场景或NCJT传输方式。
对于上述各种场景或传输方式的QCL信息的指示现有协议无法支持，因此在多波 束/多链路/多层传输或多个TRP传输的场景下，需要引入相应的机制指示数据信道的QCL信息。
发明内容
本申请提供了一种信息传输方法、装置和设备，以用于解决在不同传输模式下，比如多波束/多链路/多层传输或多个TRP传输的场景下，终端设备确定PDSCH传输波束的问题。
第一方面，本申请提供了一种信息传输方法，所述方法包括：接收第一信令，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数；获取所述第一空间相关参数中的一个或多个目标空间相关参数；根据所述一个或多个目标空间相关参数接收所述第一信道。
可选的，所述空间相关参数可以为TCI状态ID、准共址QCL信息，或者参考信号。其中，所述参考信号与所述第一信道满足QCL关系或者与第一信道的DMRS满足QCL关系。
结合第一方面，在第一方面的一种实现方式中，所述接收第一信令之前，方法还包括：接收第二信令，所述第二信令用于配置M个空间相关参数集合，M≥1，其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
结合第一方面，在第一方面的另一种实现方式中，获取所述第一空间相关参数中的一个或多个目标空间相关参数，包括：根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数；其中，所述第一信息为以下至少一项：所述第一信令中的至少一个第二字域；所述第一信令所在的控制资源集合的标识；所述第一信令所在的搜索空间集合的标识；天线面板标识。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。
可选的，所述第一信息还可以为第一字域的状态值。
结合第一方面，在第一方面的又一种实现方式中，所述第二字域为传输块字域或者天线端口字域，进一步地，所述传输块字域用于指示码字个数，所述天线端口字域用于指示至少一个DMRS端口号。
结合第一方面，在第一方面的又一种实现方式中，所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数，包括：根据第一信息和第二信息确定所述第一空间相关参数中的一个或多个目标空间相关参数；其中，所述第二信息通过第三信令承载，所述第二信息用于配置有关所述第一信息与所述一个或多个目标空间相关参数之间的对应关系。
可选的，所述第二信息还可以由协议预定义获得。
可选的，有关所述第一信息的值和/或第一信息指示的信息的值与所述一个或多个空间相关参数之间的对应关系，包括以下任意一种：所述第一信令中的至少一个第二 字域指示的解调参考信号DMRS端口标识，与一个或多个空间相关参数的对应关系；所述第一信令中的至少一个第二字域指示的DMRS端口所属的组的标识，与一个或多个空间目标相关参数的对应关系；所述第一信令中的至少一个第二字域指示的码字的信息，与一个或多个目标空间相关参数的对应关系；所述第一信令所在的控制资源集合的标识，与一个或多个目标空间相关参数的对应关系；所述第一信令所在的搜索空间集合的标识，与一个或多个目标空间相关参数的对应关系，所述天线面板的标识，与一个或多个目标空间相关参数的对应关系。
结合第一方面，在第一方面的又一种实现方式中，所述M个空间相关参数集合中包括P个第二空间相关参数和Q个第三空间相关参数，所述P个第二空间相关参数与第一取值之间具有对应关系，所述Q个第三空间相关参数与第二取值之间具有对应关系：
其中所述第一取值和所述第二取值为以下任意一种：第二字域所指示的DMRS端口号、或DMRS端口所属的组的标识、或码字信息；控制资源集合的标识；搜索空间集合的标识或天线面板标识。其中，所述第二字域所指示的DMRS端口号可以由天线端口字域来指示。
可选的，所述码字信息包括码字个数。
结合第一方面，在第一方面的又一种实现方式中，所述M个空间相关参数集合中的至少一个集合中包括所述P个第二空间相关参数；所述M个空间相关参数集合中的至少一个集合中包括所述Q个第三空间相关参数，或者，所述M个空间相关参数集合中的至少一个集合由所述P个第二空间相关参数和所述Q个第三空间相关参数组成。
结合第一方面，在第一方面的又一种实现方式中，所述第一空间相关参数中包括第二空间相关参数和第三空间相关参数，所述第一信息中的值和/或第一信息指示的信息的值包括至少一种取值，
所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数，包括：在所述第一信息的值和/或第一信息指示的信息的值为第一取值的情况下，所述一个或多个目标空间相关参数为第二空间相关参数；在所述第一信息的值和/或第一信息指示的信息的值为第二取值的情况下，所述一个或多个目标空间相关参数为第三空间相关参数。
结合第一方面，在第一方面的又一种实现方式中，所述方法还包括：在所述第一信息的值和/或第一信息指示的信息的值为所述第一取值和所述第二取值的情况下，所述一个或多个目标空间相关参数为所述第二空间相关参数和所述第三空间相关参数。
具体地，第二字域为天线端口字域，所指示的DMRS端口号所属的组的标识为第一取值00，或者为第二取值01，或者既包括第一取值00又包括第二取值01，则可以通过以下方式确定：DMRS端口号所属的组的标识00的情况下，所述目标空间相关参数为第二空间相关参数；DMRS端口号所属的组的标识01的情况下，所述目标空间相关参数为第三空间相关参数；DMRS端口号所属的组的标识为00和01的情况下，所述目标空间相关参数为第二空间相关参数和第三空间相关参数，其中第一个组的标识为00使用第二空间相关参数，第二个组的标识为01使用第三空间相关参数。
具体地，例如所述第一信令中的至少一个第二字域包括天线端口字域和传输块字 域，所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数包括：根据所述第一信令中的所述天线端口字域和所述传输块字域，以及所述天线端口字域所指示的DMRS端口所属的组的标识，确定所述一个或多个目标空间相关参数为第二空间相关参数和/或第三空间相关参数。
结合第一方面，在第一方面的又一种实现方式中，所述方法还包括：在所述第一信息的值和/或第一信息指示的信息的值为所述第一取值和所述第二取值的情况下，所述一个或多个目标空间相关参数为所述第二空间相关参数和所述第三空间相关参数。
结合第一方面，在第一方面的又一种实现方式中，所述第一空间参数中包括第二空间参数和第三空间相关参数，所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数，包括：在所述第二字域指示的码字个数为1的情况下，所述目标空间相关参数为所述第二空间相关参数或者所述第一空间相关参数。
结合第一方面，在第一方面的又一种实现方式中，在所述第二字域指示的码字个数为2的情况下，所述目标空间相关参数为所述第二空间相关参数和所述第三空间相关参数；
或者，根据所述天线端口字域的取值，确定所述目标空间相关参数为第二空间相关参数，或第二空间相关参数和第三空间相关参数；
或者，根据所述第一信令的天线端口字域所指示的DMRS所属的组的标识，确定所述目标空间相关参数为第二空间相关参数；或第二空间相关参数和第三空间相关参数。
需要说明的是，当所述第一空间相关参数仅包括一个空间相关参数时，数据都按照第一空间相关参数接收。例如两个码字时都使用第一空间相关参数接收第一信道；当所述第二空间相关参数包括一个或多个空间相关参数，第三空间相关参数包括一个或多个空间相关参数。则每个空间相关参数包括一种或多种QCL类型的组合。
本实施例提供的方法，终端通过接收基站发送的第一信令，所述第一信令中配置有第一字域的状态值，来指示多个空间相关参数中的目标空间相关参数，使得终端可以使用该目标空间相关参数接收第一信道，从而解决了多个DCI信令各调度一份数据，每份数据来自不同TRP的场景时的数据的QCL信息指示问题；和一个DCI信令调度的数据来自不同TRP的场景时数据的QCL信息指示问题，以及对于动态选择发射节点的传输场景，数据的QCL信息指示问题。
另外，本方法由于终端在多个候选状态值中至少有一个状态值对应两个或两个以上空间相关参数，所以相比于现有的一个状态值仅对应一个空间相关参数而言，增加了TCI信息配置的灵活性。并且配置有一个候选状态值对应多个空间相关参数的关联关系还节约了指示的开销。
在所述第一方面中，所述第一空间相关参数包括第二空间相关参数和第三空间相关参数，天线端口字域的状态值分为第一取值和第二取值，传输块字域的状态值分为第一取值和第二取值，天线端口字域指示的信息分为第一取值和第二取值；所述终端根据所述传输块字域的取值，和/或，天线端口字域的取值，和/或，天线端口字域指示的信息的取值，确定所述一个或多个目标空间相关信息。
具体地，可以有以下几种可能的方式：
第一种可能的实现方式：在天线端口字域的状态值为第一取值和传输块字域的状态值为第一取值的情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
在天线端口字域的状态值为第二取值和传输块字域的状态值为第二取值的情况下，确定所述一个或多个目标空间相关参数为第三空间相关参数。
第二种可能的实现方式：在传输块字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
在传输块字域的状态值为第二取值和天线端口字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
在传输块字域的状态值为第二取值和天线端口字域的状态值为第二取值的情况下，确定所述一个或多个目标空间相关参数为第三空间相关参数。
可选地，所述传输块字域的第一取值指示码字个数为1。可选地，所述传输块字域的第二取值指示码字个数为2。可选地，所述天线端口字域的第一取值和或传输块字域的第一取值指示第一传输方式。可选地，所述天线端口字域的第二取值和或传输块字域的第二取值指示第二传输方式。可选地，所述第一传输方式为单TRP传输。可选地，所述第二传输方式为多TRP传输。
例如：所述第一空间相关参数中包括第二空间相关参数(如TCI a1)和第三空间相关参数(如TCIc1+c9)。在传输块字域的第一取值指示码字个数为1的情况下，所述一个或多个目标空间相关参数为第二空间相关参数；在传输块字域的第二取值指示码字个数为2且天线端口字域的第一取值为0至3的情况下，所述一个或多个目标空间相关参数为第二空间相关参数。在传输块字域的第二取值指示码字个数为2，天线端口字域的第二取值为4至31的情况下，所述一个或多个目标空间相关参数为第三空间相关参数
第三种可能的实现方式：在天线端口字域指示的信息为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
在天线端口字域指示的信息为第二取值情况下，确定所述一个或多个目标空间相关参数为第三空间相关参数。
可选地，所述天线端口字域指示的信息第一取值指示DMRS port CDM group个数为1，所述天线端口字域指示的信息的第二取值指示DMRS port CDM group个数大于1。
其中，所述CDM为码分复用(code division multiplexing)。
例如：所述第一空间相关参数中包括第二空间相关参数(如TCI a1)和第三空间相关参数(如TCIc1+c9)。在天线端口字域指示的信息的第一取值指示的DMRS port CDM group个数为1的情况下，所述目标空间相关参数为第二空间相关参数；在天线端口字域指示的信息的第一取值指示的DMRS port CDM group个数大于1的情况下，所述目标空间相关参数为第三空间相关参数。
又例如：所述第一空间相关参数中包括第二空间相关参数(如TCI c1)和第三空间相关参数(如TCI c9)。在天线端口字域指示的信息的第一取值指示的DMRS port CDM group个数为1的情况下，所述目标空间相关参数为第二空间相关参数，也即天 线端口字域指示的DMRS CDM group对应TCI c1。
在天线端口字域指示的信息的第一取值指示的DMRS port CDM group个数大于1的情况下，所述目标空间相关参数为第二空间相关参数(如TCI c1)和第三空间相关参数(如TCI c9)。此时，天线端口字域指示的第一个DMRS CDM group中的DMRS port对应TCI c1,天线端口字域指示的除第一个DMRS CDM group外的其他DMRS port对应TCI c9。比如，天线端口字域指示的DMRS port属于DMRS CDM group 00和DMRS CDM group 01,那么天线端口字域指示的DMRS port中属于DMRS CDM group 00的DMRS port对应TCI c1，天线端口字域指示的DMRS port中属于DMRS CDM group 01的DMRS port对应TCI c9；再比如，天线端口字域指示的DMRS port属于DMRS CDM group 00、DMRS CDM group 01、DMRS CDM group 11,那么天线端口字域指示的DMRS port中属于DMRS CDM group 00的DMRS port对应TCI c1，天线端口字域指示的DMRS port中属于DMRS CDM group 01和DMRS CDM group 11的DMRS port对应TCI c9。
更进一步地，还包括：
第四种可能的实现方式：在传输块字域的状态值为第一取值，天线端口字域指示的信息为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
在传输块字域的状态值为第一取值，天线端口字域指示的信息为第二取值情况下，确定所述一个或多个目标空间相关参数为第三空间相关参数；和/或，
在传输块字域的状态值为第二取值，天线端口字域为第一取值，天线端口字域指示的信息为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
在传输块字域的状态值为第二取值，天线端口字域为第一取值，天线端口字域指示的信息为第二取值情况下，确定所述一个或多个目标空间相关参数为第三空间相关参数；和/或，
在传输块字域的状态值为第二取值，天线端口字域为第二取值情况下，天线端口字域指示的信息为第一取值和第二取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数。
可选地，所述传输块字域的第一取值指示码字个数为1。可选地，所述传输块字域的第二取值指示码字个数为2。可选地，天线端口字域指示的信息为DMRS port CDM group组标识。
例如：所述第一空间相关参数中包括第二空间相关参数(如TCI a1)和第三空间相关参数(TCI b1)和第四空间相关参数(TCIc1+c9)。在传输块字域的第一取值指示码字个数为1，或者第一取值指示码字个数为2，且天线端口字域的第一取值为0至3，在天线端口字域指示的信息的第一取值指示的DMRS port CDM group的取值为00的情况下，所述目标空间相关参数为第二空间相关参数。
在传输块字域的第一取值指示码字个数为1，或者第一取值指示码字个数为2，且天线端口字域的第一取值为0至3，在天线端口字域指示的信息的第一取值指示的DMRS port CDM group的取值为01的情况下，所述目标空间相关参数为第三空间相关 参数。
在第一取值指示码字个数为2，所述天线端口字域的第一取值为4至31时，所述天线端口字域指示的信息的第二取值指示DMRS port CDM group个数大于1，所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数。
第五种可能的实现方式：在传输块字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，在传输块字域的状态值为第二取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数。
可选地，所述传输块字域的第一取值指示码字个数为1。可选地，所述传输块字域的第二取值指示码字个数为2。
例如：所述第一空间相关参数中包括第二空间相关参数(TCI1)和第三空间相关参数(TCI5)。在传输块字域的第一取值指示码字个数为1的情况下，所述目标空间相关参数为第二空间相关参数；和/或，在传输块字域的第一取值指示码字个数为2的情况下，所述目标空间相关参数为第二空间相关参数和第三空间相关参数。
第六种可能的实现方式：在传输块字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
在传输块字域的状态值为第二取值,天线端口字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数(可选地，根据所述第二空间相关参数接收第一码字和第二码字)；和/或，
在传输块字域的状态值为第二取值,天线端口字域的状态值为第二取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数(可选地，根据所述第二空间相关参数接收第一码字，可选地，根据所述第三空间相关参数接收第二码字)。
可选地，所述传输块字域的第一取值指示码字个数为1。可选地，所述传输块字域的第二取值指示码字个数为2。
例如：所述第一空间相关参数中包括第二空间相关参数(如TCI 1)和第三空间相关参数(如TCI5)。在传输块字域的第一取值指示码字个数为1的情况下，所述一个或多个目标空间相关参数为第二空间相关参数；在传输块字域的第二取值指示码字个数为2且天线端口字域的第一取值为0至3的情况下，所述一个或多个目标空间相关参数为第二空间相关参数(可选地，根据所述第二空间相关参数接收第一码字和第二码字)。在传输块字域的第二取值指示码字个数为2，天线端口字域的第二取值为4至31的情况下，所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数(可选地，根据所述第二空间相关参数接收第一码字，可选地，根据所述第三空间相关参数接收第二码字)。
第七种可能的实现方式：在传输块字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第一空间相关参数；和/或，
在传输块字域的状态值为第二取值,天线端口字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数(可选地，根据所述第二空间相关参数接收第一码字和第二码字)；和/或，
在传输块字域的状态值为第二取值,天线端口字域的状态值为第二取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数(可选地，根据所述第二空间相关参数接收第一码字，可选地，根据所述第三空间相关参数接收第二码字)。
可选地，所述传输块字域的第一取值指示码字个数为1。可选地，所述传输块字域的第二取值指示码字个数为2。
例如：所述第一空间相关参数中包括第二空间相关参数(如TCI 1)和第三空间相关参数(如TCI5)。在传输块字域的第一取值指示码字个数为1的情况下，所述一个或多个目标空间相关参数为第一空间相关参数；在传输块字域的第二取值指示码字个数为2且天线端口字域的第一取值为0至3的情况下，所述一个或多个目标空间相关参数为第二空间相关参数(可选地，根据所述第二空间相关参数接收第一码字和第二码字)。在传输块字域的第二取值指示码字个数为2，天线端口字域的第二取值为4至31的情况下，所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数
可选地，根据所述第二空间相关参数接收第一码字，可选地，根据所述第三空间相关参数接收第二码字。
第八种可能的实现方式：在传输块字域的状态值为第一取值情况下，确定所述一个或多个目标空间相关参数为第一空间相关参数或第二空间相关参数；和/或
在传输块字域的状态值为第二取值,天线端口字域指示的信息为第一取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数(可选地，根据所述第二空间相关参数接收第一码字和第二码字)；和/或，
在传输块字域的状态值为第二取值,天线端口字域指示的信息为第二取值情况下，确定所述一个或多个目标空间相关参数为第三空间相关参数(可选地，根据所述第三空间相关参数接收第一码字和第二码字)；和/或，
在传输块字域的状态值为第二取值,天线端口字域指示的信息为第一取值和第二取值情况下，确定所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数(可选地，根据所述第二空间相关参数接收第一码字，可选地，根据所述第三空间相关参数接收第二码字)。
可选地，所述传输块字域的第一取值指示码字个数为1。可选地，所述传输块字域的第二取值指示码字个数为2。可选地，天线端口字域指示的信息为DMRS port CDM group标识。
例如：所述第一空间相关参数中包括第二空间相关参数(如TCI 1)和第三空间相关参数(如TCI5)。在传输块字域的第一取值指示码字个数为1的情况下，所述一个或多个目标空间相关参数为第一空间相关参数或第二空间相关参数；在传输块字域的第二取值指示码字个数为2且天线端口字域指示的DMRS port CDM group标识为第一取值的情况下，所述一个或多个目标空间相关参数为第二空间相关参数(可选地，根据所述第二空间相关参数接收第一码字和第二码字)。在传输块字域的第二取值指示码字个数为2，天线端口字域指示的DMRS port CDM group标识为第二取值的情况下，所述一个或多个目标空间相关参数为第三空间相关参数。在传输块字域的第二取值指 示码字个数为2，天线端口字域指示的DMRS port CDM group标识为第一取值和第二取值的情况下，所述一个或多个目标空间相关参数为第二空间相关参数和第三空间相关参数(可选地，根据所述第二空间相关参数接收第一码字，可选地，根据所述第三空间相关参数接收第二码字)。
应理解，本申请中所述第一取值和第二取值可以指一个取值范围或某个值，该第一取值可以包括一个或多个值，第二取值可以包括一个或多个值。
应理解，不同信息或不同字域的第一取值可以是不同的，不同信息或不同字域的第二取值可以是不同的，本申请的实施例对各种取值不做具体限定。
第二方面，本实施例提供了一种信息传输方法，所述方法包括：网络设备发送第一信令，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数；所述网络设备根据所述第一空间相关参数中的一个或多个目标空间相关参数发送所述第一信道。
结合第二方面，在第二方面的一种实现方式中，所述方法还包括发送第二信令，所述第二信令用于配置M个空间相关参数集合，M≥1，其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
结合第二方面，在第二方面的另一种实现方式中，所述方法还包括：发送所述第一信息，所述第一信息为以下至少一项：所述第一信令中的至少一个第二字域、所述第一信令所在的控制资源集合的标识、所述第一信令所在的搜索空间集合的标识、所述第一字域的状态值、天线面板标识。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。
结合第二方面，在第二方面的又一种实现方式中，所述第二字域为传输块字域或者天线端口字域，所述传输块字域用于指示码字个数，所述天线端口字域用于指示至少一个DMRS端口号。
结合第二方面，在第二方面的又一种实现方式中，所述方法还包括：发送第三信令，所述第三信令中包括第二信息，所述第二信息用于配置有关所述第一信息与所述一个或多个目标空间相关参数之间的对应关系。
结合第二方面，在第二方面的又一种实现方式中，所述M个空间相关参数集合中包括P个第二空间相关参数集合和Q个第三个空间相关参数集合，所述P个第二空间相关参数集合与第一取值具有对应关系，所述Q个第三空间相关参数集合与第二取值具有对应关系；其中所述第一取值和所述第二取值为以下任意一种：第二字域所指示的DMRS端口标识、或DMRS端口所属的组的标识、或码字信息、或者控制资源集合的标识、搜索空间集合的标识、天线面板标识、所述第一字域的状态值。
结合第二方面，在第二方面的又一种实现方式中，所述M个空间相关参数集合中的至少一个集合中包括所述P个第二空间相关参数，所述M个空间相关参数集合中的 至少一个集合中包括所述Q个第三空间相关参数；或者，所述M个空间相关参数集合中的至少一个集合由所述P个第二空间相关参数和所述Q个第三空间相关参数组成。
结合第二方面，在第二方面的又一种实现方式中，所述空间相关参数为：传输配置指示TCI状态，或准共址QCL信息，或参考信号RS，其中所述RS用于指示所述第一信道QCL信息。
第三方面，本实施例还提供了一种通信装置，所述通信装置用于实现前述第一方面及第一方面各种实现中的方法，其中，所述装置包括接收单元和处理单元，可选的，所述通信装置还可以包括发送单元、存储单元或其他必要的单元模块。
具体地，所述接收单元用于接收第一信令，所述处理单元用于获取所述第一空间相关参数中的一个或多个目标空间相关参数；以及，根据所述一个或多个目标空间相关参数接收所述第一信道，其中所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数。
结合第三方面，在第三方面的一种实现中，所述接收单元在接收所述第一信令之前，还用于接收第二信令，所述第二信令用于配置M个空间相关参数集合，M≥1；其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
结合第三方面，在第三方面的另一种实现中，所述处理单元具体还用于根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数，其中，所述第一信息为以下至少一项：所述第一信令中的至少一个第二字域、所述第一信令所在的控制资源集合的标识、所述第一信令所在的搜索空间集合的标识、天线面板标识或所述第一字域的状态值。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。
可选的，所述第二字域为传输块字域或者天线端口字域，所述传输块字域用于指示码字个数，所述天线端口字域用于指示至少一个DMRS端口号。
第四方面，本实施例还提供了一种通信装置，所述通信装置还用于实现前述第二方面及第二方面的各种实现中的方法，其中，所述装置包括发送单元和处理单元，可选的，所述通信装置还可以包括接收单元、存储单元或其他必要的单元模块。
具体地，所述发送单元用于发送第一信令，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数。
第五方面，本实施例还提供了一种通信设备，包括处理器，所述处理器与存储器耦合，所述存储器，用于存储指令；所述处理器，用于执行所述存储器中的指令，使得所述通信设备执行前述第一方面或第一方面任意一种实现方式所述的方法，或者实现如前述第如第二方面或第二方面任意一种实现方式所述的方法。
第六方面，本实施例还提供了一种计算机存储介质，包括计算机指令，当所述计算机指令在设备上运行时，使得所述设备执行前述第一方面或第一方面任意一种实现方式所述的方法，或者实现如前述第如第二方面或第二方面任意一种实现方式所述的方法。
第七方面，本申请还提供了一种计算机程序产品，当其在计算机上运行时，实现如前述第一方面或第一方面任一种实现方式所述的方法，或实现如前述第二方面或第二方面任一种实现方式所述的方法。
本申请提供的一种信息传输方法、通信装置和设备，终端通过接收基站发送的第一信令，所述第一信令中配置有第一字域的状态值，来指示多个空间相关参数中的目标空间相关参数，使得终端可以使用该目标空间相关参数接收第一信道，从而解决了各种传输场景下的QCL信息指示问题。
另外，本方法由于终端在多个候选状态值中至少有一个状态值对应两个或两个以上空间相关参数，所以相比于现有的一个状态值仅对应一个空间相关参数而言，增加了TCI信息配置的灵活性。并且配置有一个候选状态值对应多个空间相关参数的关联关系还节约了指示的开销。
附图说明
图1为本申请提供的一种波束训练的示意图；
图2a为本申请实施例提供的一种单个TRP单波束传输的示意图；
图2b为本申请实施例提供的一种单个TRP多波束传输的示意图；
图2c为本申请实施例提供的一种多个TRP多波束传输的示意图；
图2d为本申请实施例提供的一种DPS场景下的波束传输的示意图；
图3为本申请实施例提供的一种应用场景的示意图；
图4为本申请实施例提供的一种数据传输方法的信令流程图；
图5为本申请实施例提供的一种数据传输方法的流程图；
图6为本申请实施例提供的一种天线端口字域值与DMRS端口的对应关系的示意图；
图7为本申请实施例提供另一种数据传输方法的信令流程图
图8为本申请实施例提供另一种天线端口值与DMRS端口的对应关系的示意图；
图9为本申请实施例提供一种通信装置的结构示意图；
图10为本申请实施例提供另一种通信装置的结构示意图；
图11为本申请实施例提供一种通信设备的结构示意图；
图12为本申请实施例提供另一种通信设备的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本申请实施例中的技术方案，并使本申请实施例的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请实施例中的技术方案作进一步详细的说明。
在对本申请实施例的技术方案说明之前，首先对本申请实施例中的相关技术术语和应用场景进行解释和说明。
1、控制资源集合(control resource set，CORESET)
CORESET：为了提高终端盲检控制信道的效率，NR标准制定过程中提出了控制资源集合的概念。网络设备可为UE配置一个或多个资源集合，用于发送物理下行控制信道(Physical Downlink Control Channel，PDCCH)。网络设备可以在终端对应的任一控制资源集合上，向终端发送控制信道。此外，网络设备还需要通知终端所述控制资源集合的相关联的其他配置，例如搜索空间集合等。每个控制资源集合的配置信息存在差异，例如频域宽度差异、时域长度差异等。
可选的，本申请中的控制资源集合可以是5G移动通信***定义的CORESET或控制区域(control region)或ePDCCH集合(set)。
2、同位置假设(Quasi-collocation，QCL)信息
QCL信息：准共站/准共址QCL假设信息也可以称为QCL信息。QCL信息用于辅助描述终端接收侧波束赋形信息以及接收流程。
进一步地，QCL信息用于指示两种参考信号之间的QCL关系，源参考信号和目标参考信号，其中目标参考信号一般是可以是解调参考信号(demodulation reference signal，DMRS)，信道状态信息参考信号(channel state information reference signal，CSI-RS)等，而被引用的参考信号或者源参考信号一般可以是CSI-RS、追踪参考信号(tracking reference signal，TRS)、同步信号广播信道块(synchronous signal/PBCH block，SSB)等。应理解满足QCL关系的两个参考信号或信道的空间特性参数是相同的，从而基于该源参考信号资源索引可推断出目标参考信号的空间特性参数。其中，空间特性参数包括以下参数中的一种或多种：
入射角(angle of arrival，AoA)、主(dominant)入射角AoA、平均入射角、入射角的功率角度谱(power angular spectrum，PAS)、出射角(angle of departure，AoD)、主出射角、平均出射角、出射角的功率角度谱、终端发送波束成型、终端接收波束成型、空间信道相关性、基站发送波束成型、基站接收波束成型、平均信道增益、平均信道时延(average delay)、时延扩展(delay spread)、多普勒扩展(Doppler spread)、多普勒频移(Doppler shift)、空间接收参数(spatial Rx parameters)等。
这些空间特性参数描述了源参考信号与目标参考信号的天线端口间的空间信道特性，有助于终端根据该QCL信息完成接收侧波束赋形或接收处理过程。应理解地，终端可以根据QCL信息指示的源参考信号的接收信息，接收目标参考信号。
其中，为了节省网络设备侧对终端侧的QCL信息指示开销，一种可选的实施方式是，网络设备侧可以指示物理下行控制信道(Physical Downlink Control Channel，PDCCH)或物理下行共享信道(Physical Downlink Shared Channel，PDSCH)的解调参考信号与终端之前上报的多个参考信号资源中的一个或多个是满足QCL关系的，如，该参考信号可以是CSI-RS。这里，每一个上报的CSI-RS资源索引对应了一个之前基于该CSI-RS资源测量时建立的一个收发波束对。应理解地，满足QCL关系的两个参考信号或信道的接收波束信息是相同的，从而基于该参考信号资源索引UE可推断出接收PDCCH或PDSCH的接收波束信息。
现有标准中定义了四种类型的QCL，基站可以同时给UE配置一个或多种类型的QCL，如QCL type，A+D或者C+D：
QCL类型A:多普勒频移(Doppler shift)、多普勒拓展(Doppler spread)、平均信道时延(average delay)和时延拓展(delay spread)；
QCL类型B:多普勒频移和多普勒拓展；
QCL类型C:平均信道时延和多普勒频移；
QCL类型D:空间接收参数(spatial Rx parameter)。
可以理解地，本申请中的QCL信息包括QCL类型A、类型B、类型C和类型D中的一个或多个。
3、空间相关信息(spatial relation infomation)
空间相关信息，用于辅助描述终端发射侧波束赋形信息或发射流程。具体地，所述空间相关信息用于指示两种参考信号之间的空间接收参数关系，其中目标参考信号一般是可以是DMRS，探测参考信号(SRS)等，而被引用的参考信号或者源参考信号一般可以是CSI-RS、SRS、SSB等。应理解地，满足空间相关性信息的两个参考信号或信道的空间特性参数是相同的，从而基于该源参考信号资源索引可推断出目标参考信号的空间特性参数。其中，所述空间特性参数与上述空间特性参数，比如入射角(angle of arrival，AoA)、主(Dominant)入射角AoA、平均入射角、…、空间接收参数(spatial Rx parameters)等相同，此处不详细例举。这些空间特性参数描述了源参考信号与目标参考信号的天线端口间的空间信道特性，有助于终端根据该空间相关信息完成发射侧波束赋形或发射处理过程。应理解，终端可以根据空间相关信息指示的源参考信号的发射信息，发射目标参考信号。
4、传输配置指示(transmission configuration indicator，TCI)
TCI信息：用于指示PDCCH/CORESET或者是PDSCH的QCL信息。进一步地，TCI信息是指TCI中包括的参考信号与PDCCH/PDSCH的DMRS满足QCL关系，主要用于指示接收PDCCH/PDSCH时，其空间特性参数等信息与TCI中包括的参考信号的空间特性参数等信息相同、相似或相近。
5、同步信号广播信道块(SS/PBCH block)
SS/PBCH block(synchronous signal/PBCH block)还可以称为SSB。其中，物理广播信道(physical broadcast channel，PBCH)。SSB包含主同步信号(primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和PBCH中的至少一个。主要用于小区搜索、小区同步、承载广播信息的信号。
6、波束(beam)
波束是一种通信资源。波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束赋形技术或者其他技术手段。波束赋形技术可以具体为数字波束赋形技术，模拟波束赋形技术，混合数字/模拟波束赋形技术。不同的波束可以认为是不同的资源，通过不同的波束可以发送相同的信息或者不同的信息。
可选的，可以将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束内可以包括一个或多个天线端口，用于传输数据信道，控制信道和探测信号等。例如，发射波束可以是指：信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指：从天线上接收到的无线信号在空间不同方向上的信号强度分布。可以理解的是，形成一个波束的一个或多个天线端口也可以看作是一个天线 端口集。
波束可以分为网络设备的发送波束和接收波束，与终端的发送波束和接收波束。网络设备，比如基站的发送波束用于描述网络设备发送侧波束赋形信息，基站接收波束用于描述网络设备接收侧波束赋形信息。同理地，终端的发送波束用于描述终端发送侧波束赋形信息，终端接收波束用于描述终端接收侧波束赋形信息。因此概括地理解，波束可以用于描述波束赋形信息。
此外，波束可以对应时间资源，空间资源，频域资源中的一种或多种。
可选的，波束还可以与参考信号资源(例如，波束赋形的参考信号资源)，或者波束赋形信息产生对应关系。
可选的，波束还可以与网络设备的参考信号资源关联的信息相对应。其中，参考信号可以为CSI-RS，SSB，DMRS，相位跟踪信号(phase tracking reference signal，PTRS)，TRS等，与参考信号资源关联的信息可以是参考信号资源标识，或者QCL信息(特别是类型D的QCL)，TCI信息等。其中，参考信号资源标识对应了之前基于该参考信号资源测量时建立的一个收发波束对，通过该参考信号资源索引，终端可推断波束信息。
可选的，波束还可以与空域滤波器(spatial filter/spatial domain filter)，空域传输滤波器(spatial domain transmission filter)、空间滤波器、空间传输滤波器对应。其中，接收波束等价于空间传输滤波器，空域传输滤波器，空域接收滤波器，空间接收滤波器；发送波束可以等价于空域滤波器，空域传输滤波器，空域发送滤波器，空间发送滤波器。空间相关参数的信息等价于空间滤波器(spatial domain transmission/receive filter)。
进一步地，空间滤波器一般包括：空间发送滤波器，和/或，空间接收滤波器。该空间滤波器还可以称之为空域发送滤波器，空域接收滤波器，空间传输滤波器，空域传输滤波器等。可选的，终端侧的接收波束和网络设备侧的发送波束可以作为下行空间滤波器，终端侧的发送波束和网络设备侧的接收波束可以作为上行空间滤波器。
7、初始带宽区域(Bandwidth part，BWP)
当终端从RRC空闲(idle)状态接入一个小区或者一个宽带载波时，终端初始接入时的BWP称为：初始BWP(initial BWP)，或者可以理解为终端在初始BWP上执行随机接入。
8、激活(active)BWP
当终端有业务到达时，网络设备将终端从初始BWP调度到一个带宽和其业务相匹配的BWP上，并且可以通过高层信令或者层一信令指示当前终端设备工作的BWP，网络设备，终端在这个BWP上可以收发数据和或参考信号。这个BWP就称为激活BWP。对于单载波的情况或一个服务小区的情况，一个终端在同一时刻只有一个激活的BWP，终端只能在激活的BWP上接收数据/参考信号或者发送数据/参考信号。
目前通信***中支持BWP的动态切换。网络设备通过下行控制信息(downlink control information，DCI)或无线资源控制(radio resource control，RRC)信令指示终端设备进行BWP的切换。DCI位于当前BWP中，其频域资源分配信息域的大小由当前BWP的带宽决定。DCI中有一个带宽区域指示(bandwidth part indicator)的信息域， 用于指示终端所激活的BWP的ID号。当该信息域所指示的BWP ID号与终端当前激活的BWP ID号(即传输DCI的当前BWP)不一致时，终端需要从当前BWP切换至DCI中所指示的BWP上。
当前，通信***通常使用不同种类的参考信号：一类参考信号用于估计信道，比如DMRS，从而可以对含有控制信息或者数据的接收信号进行相干解调；另一类用于信道状态或信道质量的测量，比如CSI-RS，从而实现对UE的调度。UE基于对CSI-RS的信道质量测量得到信道状态信息(channel state information，CSI)，所述CSI包括秩指示(Rank Indicator，RI)，预编码指示(Precoding Matrix Indicator，PMI)，信道质量指示(Channel Quality Indicator，CQI)等中的至少一种.这些CSI信息可由UE通过物理上行控制信道(Physical Uplink Control Channel，PUCCH)或物理上行共享信道(Physical Uplink Shared Channel，PUSCH)发送给基站。
现有的PDSCH或PUSCH的空间相关参数信息方法如下：
对于PDSCH的波束指示，主要是通过TCI信息来实现，例如通过无线资源控制(Radio Resource Control，RRC)信令、介质介入控制(Medium Access Control，MAC-CE)信令和下行控制信息(Downlink Control Information，DCI)联合指示，或者，还可以通过RRC信令和DCI联合指示。
具体地，一种动态指示的方法包括：
RRC配置PDSCH的M个候选传输配置指示(Transmission Configuration Indicator，TCI)状态(states)，所述每个候选TCI状态中包括一个QCL信息。
MAC-CE从M个TCI state中激活2 N个TCI状态(M个TCI states的子集)。
参见表1，示出了一种利用MAC-CE指示TCI字域的激活或去激活的状态的示意图。
Figure PCTCN2019114613-appb-000001
表1
其中，服务小区标识(serving cell ID)：用于指示该MAC-CE所指示的TCI所属的服务小区的ID。
带宽区域(Bandwidth part，BWP)ID：用于指示该MAC-CE所应用的下行带宽区域。
Ti字域：用于指示TCI state ID i的TCI state的激活/去激活状态。进一步地，如果Ti字域为“1”，则表示TCI state ID i的TCI处于被激活状态，并映射到DCI中的TCI字域。如果Ti字域为“0”，则表示TCI state ID i的TCI state处于被去激活状态，且不会映射到DCI的TCI字域。
“R”表示预留比特(Reserved bit)，一般设置为“0”。
其中，TCI state映射到DCI的码点(codepoint)按照其所有Ti字域，设置为“1”的TCI state顺序映射。例如，第一个Ti字域设置为“1”的TCI state映射到codepoint  value 0的位置；第二个Ti字域设置为“1”的TCI state映射到codepoint value 1的位置，以此类推，激活的TCI状态的value的最大个数为8。
DCI中的TCI字域有N bit用于指示2N个TCI State中的一个TCI State用于PDSCH的接收，现有协议中当N＝3时，表2所示的DCI可以用于指示TCI state中的一个。
Figure PCTCN2019114613-appb-000002
表2
其中，DCI字域中是否存在PDSCH的TCI field可以通过高层信令指示，比如RRC信令中的TCI-PresentInDCI字段，每个CORESET都可以配置的该字段，当某个CORESET配置了该字段是使能的，那么在该CORESET检测的DCI中存在TCI字域；当某个CORESET没有配置该字段，那么该CORESET检测的DCI中不存在TCI字域，此时，可选的，PDSCH的TCI state为PDCCH配置的TCI state。
当调度偏移值小于门限k时，UE使用默认的TCI状态接收PDSCH；当调度偏移值大于门限k时，UE使用DCI中指示的TCI状态ID接收PDSCH。规定，在初始RRC和MAC-CE阶段，UE假设PDCCH，PDSCH的DMRS与初始接入时确定的同步信号广播信道块(synchronous signal/PBCH block，SSB)是QCL的。
对于PUSCH的波束指示，其实现的波束信息可以是通过RRC信令、MAC-CE信令和DCI联合指示，或者由RRC信息和DCI来指示，其中DCI中包括探测参考信号资源指示(SRS resource indicator，SRI)字域，用于指示PUSCH的波束信息(spatial relation信息)。协议中的spatial relation的指示如下：
一般地，基站通过信令配置用于指示数据信道的QCL信息的TCI表或TCI集合，DCI中的TCI字域指示该TCI表或TCI集合中的一个TCI状态，每个TCI字域的状态值(value)仅对应一个传输配置指示TCI状态ID(QCL信息)。例如，基站通过RRC信令指示64个TCI状态用于PDSCH的接收，MAC-CE信令激活64个TCI状态中的8个TCI状态，该8个TCI状态的ID为a1至a8，DCI字域的一个状态值000对应TCI状态ID a1，终端设备根据TCI state Id a1指示的TCI state接收PDSCH。
再例如，DCI指示3个波束中的一个，即TRP1从3个可选波束中的1个波束发送的数据，在接收端UE对应1个波束接收，即一个DCI信令调度的一份数据均来自一个TRP，如图2a所示，该场景属于单TRP单波束(single TRP with single-beam)传 输方式。
此外，还包括其它场景的传输方式，例如图2b所示，TRP1同时将使用两个波束向UE发送数据，该场景属于单TRP多波束(single TRP with multi-beam)传输方式。以及图2c所示的多TRP多波束(multi TRP with multi-beam)同时传输的场景，即TRP1和TRP2分别使用一个波束传输数据给UE，即一份数据来自两个不同的TRP。可选的，所述多TRP多波束的传输场景也可称为非相干联合发送(Non coherent joint transmission，NCJT)场景。在该场景下，UE需要多个波束指示信息来接收数据信道。
可选的，还包括一种可能的传输场景，多个DCI各调度一份数据，且每份数据来自不同的TRP。如图2d所示的动态选择节点(dynamic point selection，DPS)传输场景。
对于上述各种可能的传输场景，对于一个DCI调度来自多个TRP的数据情况，采用当前TCI状态ID的表格形式无法支持，对于多个DCI调度来自多个TRP的数据的情况，当前DCI指示的TCI信息的灵活度较低，且对于各种传输场景下指示不同的TCI字域状态时，所占用的指示信息开销较大。
为解决上述问题，本申请提供的技术方案如下，其中，在对各个实施例的技术方案描述之前，先介绍本申请技术方案可以应用的技术场景。
本申请提供的技术方案可以应用于各种通信***，例如可应用于第五代(5th generation，5G)移动通信***中的新无线(new radio，NR)***或未来的移动通信***。其中，所述的5G移动通信***包括非独立组网(non-standalone，NSA)的5G移动通信***，和/或独立组网(standalone，SA)的5G移动通信***。本申请对此不作限定。
在上述各种通信***中，参见图3，本申请提供了一种具体的技术场景中包括至少一个终端和网络设备，例如图3示出了由一个网络设备、终端1和终端2组成的应用场景。可以理解地，所述场景还可以是由其它数量的终端和网络设备组成，本申请对此不予限定。
其中，所述终端可称为接入终端、用户设备(user equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。进一步地，接入终端可以是蜂窝电话、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及5G通信***中的用户设备等。
所述网络设备可以是码分多址(code division multiple access，CDMA)***中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)***中的基站(node B，NB)，还可以是LTE***中的演进型基站(evolutional node B，eNB)，还可以是5G移动通信***中的基站(gNB)，上述基站仅是举例说明，网络设备还可以为中继站、接入点、车载设备、可穿戴设备以及其它类型的设备。
下面以所述网络设备为基站，终端为UE举例，对本申请各个实施例提供的技术方案进行详细地说明。
实施例一
本实施例提供了一种信息传输方法，可应用于上述各种传输场景，例如多个DCI对应多个TRP的场景，或者DPS场景，不同时刻DCI可以调度不同TRP的数据，UE确定当前数据所使用的空间相关参数的具体过程如下：
如图4所示，本实施例提供的方法包括：
步骤101：基站发送第一信令。
其中，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数。
进一步地，所述空间相关参数包括：TCI状态或TCI状态ID，或者QCL信息，参考信号或参考信号索引。可选的，该参考信号与第一信道满足QCL关系。例如空间相关参数信息指示两个参考信号(reference signal，RS)，分别为RS1和RS2。可以理解地，所述空间相关参数还可以通过其它特征参数指示UE，并用于接收第一信道，本申请对空间相关参数的具体形式不予限制。可选的，所述RS可以是空间相关信息(spatial relation info)。
可选的，所述第一信道包括PDSCH或PUSCH。
可选的，所述第一信道包括PUCCH或PDCCH。
可选的，本申请实施例中，对于下行信道传输，该空间相关参数为TCI状态或者QCL信息；对于上行信道传输，该空间相关参数为空间相关信息(spatial relation info)。
可选的，所述第一信令为DCI信令。进一步地，所述DCI信令的格式为DCI format1-1。
本实施例以空间相关参数为TCI状态ID进行举例，比如，一个空间相关参数为TCI状态ID表示可以为“TCI state ID a1”其中，a1为TCI状态ID的一个取值，另外，TCI状态ID的取值还可以是a2、a3、……a8，b1、b2、c1、c2等。
可选的，在本申请的各个实施例中，若以TCI状态ID来表示空间相关参数，则所述TCI状态ID a1可以表示为“TCI state ID a1”或者简写为“TCI ID a1”、“TCI a1”、“TCI 1”。
所述第一字域为TCI字域，可简化表示为“Ti字域”，所述第一字域可以对应多个状态值(value of TCI field)，每个所述状态值可以对应一个或多个空间相关参数。参见上述表1，包括8个状态值，000至111，且每个状态值对应一个空间相关参数，比如TCI字域的状态值“000”对应的空间相关参数(TCI状态ID)为a1；“001”对应的空间相关参数(TCI状态ID)为a2，以此类推。
可选的，表1中示出的8个状态值，从000至111均为第一字域的候选状态值，且第一信令中携带的第一字域所对应的状态值为这8个候选状态值中的一个，比如第一字域的状态值为“000”。所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数，可以理解为，8个候选状态值中至少有一个候选状态值，比如“000”分别与两个或两个以上的TCI状态ID具有对应关系，例如，000对应TCI state ID a1和000对应TCI state ID b1，其中，a1和b1分别位于不同的空间相关参数集合。
可选的，一种可能的实现中，第一信令中第一字域的状态值对应一个空间相关参 数。比如状态值“000”对应TCI状态ID a1。
可选的，另一种可能的实现中，第一信令中第一字域的状态值对应两个或两个以上空间相关参数，比如状态值“000”对应TCI状态ID c1和c9。
可选的，所述第一信令为DCI信令。
可选的，所述第一信令中还包括第一信息，所述第一信息用于确定第一空间相关参数中的一个或多个空间相关参数。进一步地，所述第一信息可以为以下信息中的至少一项：第一信令中的至少一个第二字域、第一信令所在的控制资源集合的标识(CORESET ID)、第一信令所在的搜索空间集合的标识(search space ID)。
其中，所述第二字域为传输块(transport block)字域或者天线端口(antenna port)字域。
步骤102：基站发送第二信令。
所述第二信令用于配置M个空间相关参数集合，M≥1，其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的多个候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
可选的，所述第二信令为RRC信令，或RRC信令和MAC-CE信令。
可选的，所述第二信令可以在步骤101之前执行或者在步骤101之后执行，本申请对此不进行限定。
其中，所述第二信令通过基站配置并下发给UE。第二信令用于指示接收PDSCH候选空间相关参数，如TCI状态表格或TCI状态集合。比如上面表2，示出了一种第一字域的候选状态值与TCI状态ID之间的对应关系。
基站通过第二信令还可以配置其它空间相关参数集合，如下表3所示，
Figure PCTCN2019114613-appb-000003
表3
表3示出了8个TCI字域的候选状态值和每个候选状态值所对应的TCI状态ID，其中，每个候选状态值对应一个空间相关参数(TCI state ID b)，且从b1至b8这8个空间相关参数组成一个集合称为空间相关参数集合。
结合上述表2和表3，基站通过第二信令配置了两个空间相关参数集合，M＝2，其中第1个空间相关参数集合中包括TCI状态ID从a1至a8共8个空间相关参数，即 第一空间参数集合{TCI a1，TCI a2，……，TCI a8}；第2个空间相关参数集合中包括TCI状态ID从b1至b8共8个空间相关参数，即第二空间相关参数集合{TCI b1，TCI b2，……，TCI b8}；可以理解地，还可以包括第三、第四空间或者更多的空间相关参数集合，本实施例对此不一一举例。
可选的，所述空间相关参数“集合”可以称为空间相关参数“表”(Table)或者空间相关参数“清单”(List)。
可选的，本实施例中，M＝2，i＝1或2，且第1个空间相关参数集合中包括8个空间相关参数，第2个空间相关参数集合中也包括8个空间相关参数。并且，每个空间相关参数a1至a8，或b1至b8均与TCI字域的候选状态值从000至111之间存在对应关系。
另外，本实施例中，配置的两个空间相关参数集合用于接收来自不同TRP的数据，或者接收来自一个TRP的不同天线面板的数据，或者接收来自不同方向的数据。
比如一个空间相关参数集合{TCI a1，TCI a2，……，TCI a8}中用于指示TRP1发送的信息的空间相关参数，另一个空间相关参数集合{TCI b1，TCI b2，……，TCI b8}中用于指示TRP2发送的信息的空间相关参数。
可选的，本实施例中，将上述两个空间相关参数集合均用于指示单个TRP发送信息的空间相关参数的情形，称为“单TRP传输”或“single TRP传输”或“单站传输”。
可选的，所述M个空间相关参数集合可以通过一个第二信令配置下来，也可以通过多个第二信令配置下来。
可选的，所述第二信令为DCI信令。
步骤103：基站发送第三信令。
可选的，所述第三信令为RRC信令和/或MAC-CE信令。
所述第三信令中包括第二信息，所述第二信息用于配置有关所述第一信息与所述一个或多个空间相关参数之间的对应关系。其中，所述第二信息也可以是由协议预定义的。
进一步地，所述第二信息在协议预定义的情况下，基站可以不发送所述第三信令，所述第二信息由UE根据协议预定义生成。
其中，所述第一信息的值和/或第一信息指示的信息的值与第一空间相关参数中的一个或多个目标空间相关参数之间的对应关系，包括以下各种情况：
情况1：
在所述第一信息为第一信令中的至少一个第二字域所指示的DMRS端口组标识的情况下，所述第二信息用于配置所述DMRS端口组标识与空间相关参数之间的对应关系。
例如，M个空间相关参数集合中包括P个第二空间相关参数{TCI a1，TCI a2，……，TCI a8}和Q个第三空间相关参数{TCI b1，TCI b2，……，TCI b8}。
可选的，所述DMRS端口组标识为DMRS端口所属的CDM组(DMRS port CDM group)的标识，其中所述CDM组的标识按照不同的取值可以对应不同的空间相关参数。比如，DMRS端口CDM组标识的第一取值“00”对应P个第二空间相关参数，比如TCI a1至TCI a8，或者第一空间相关参数集合{TCI a1，TCI a2，……，TCI a8}， DMRS端口CDM组标识第二取值“01”对应Q个第三空间相关参数，比如TCI b1至TCI b8，或者第二空间相关参数集合{TCI b1，TCI b2，……，TCI b8}。
情况2：
在所述第一信息为第一信令所在的控制资源集合标识的情况下，所述第二信息用于配置所述控制资源集合的标识与空间相关参数之间的对应关系。比如，CORESET ID1(第一取值)对应P个第二空间相关参数，例如TCI list1或者TCI table1，所述TCI list1或TCI table1为{TCI a1，TCI a2，……，TCI a8}中的部分或全部组成。同理地，CORESET ID2(第二取值)对应Q个第三空间相关参数，例如TCI list2或TCI table2，所述TCI list2或TCI table2为{TCI b1，TCI b2，……，TCI b8}中的部分或全部。
其中，所述控制资源集合的标识还可以是控制资源集合的标识组或控制资源集合的标识集合，其中所述CORESET组中包括至少一个CORESET ID。比如对于CORESET组1，所述CORESET组1中包括CORESET ID1、CORESET ID2等。
情况3：
在所述第一信息为第一信令所在的搜索空间集合标识的情况下，所述第二信息用于配置所述搜索空间集合标识与空间相关参数之间的对应关系。比如，search space ID1(第一取值)对应P个第二空间相关参数，例如TCI list1或TCI table1{TCI a1，TCI a2，……，TCI a8}，search space ID2(第二取值)对应Q个第三空间相关参数，例如TCI list2或TCI table2{TCI b1，TCI b2，……，TCI b8}。
此外，还可以包括：
情况4：
在所述第一信息为第一信令中的至少一个第二字域指示的DMRS端口标识的情况下，所述第二信息用于配置所述DMRS端口标识与空间相关参数之间的对应关系。比如，DMRS端口号(DMRS ports)对应TCI list或TCI table。
情况5：
在所述第一信息为第一信令中的至少一个第二字域指示的码字信息的情况下，所述第二信息用于配置所述码字(codeword，CW)与空间相关参数之间的对应关系。比如，一个CW时对应TCI a1；两个码字时对应TCI a1、TCI b1，比如CW1对应TCI a1，CW2对应TCI b1。其中，“CW1”表示第1个码字，“CW2”表示第2个码字。
情况6：
所述第一信令中的第二字域为频域资源配置字域，或者所述第二字域为时域资源配置字域；所述第一信息为第一信令中的至少一个第二字域指示的资源(第一资源和第二资源)的情况下，所述第二信息用于配置所述资源与空间相关参数之间的对应关系。比如，第一资源对应TCI a1；第二资源对应TCI b1。
需要说明的是，还可以包括其他对应关系，比如第一信令中的至少一个第二字域指示的面板的标识与所述一个或多个空间相关参数的对应关系等，本申请实施例对此不予限制。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。第一信息可以通过第一信令、第二信令、第三信令中的一个或多个信令指示，还可以是其他信令指示。
可选地，对应关系可以包括以下对应关系中的一种：
(1)一个CDM组标识/CORESET ID/search space ID/天线面板ID关联一个至多个空间相关参数或空间相关参数集合；例如CDM组标识00可以对应TCI table1和TCI table2；
(2)一个空间相关参数清单或空间相关参数集合关联至少一个CDM组标识/CORESET ID/search space ID/天线面板ID；例如TCI list1关联的CORESET ID有00，或00和01。
可以理解地，不同的空间相关参数集合可以包含相同的空间相关参数，例如TCI table1和TCI table2中都包括空间相关参数TCI a1。
此外，如果步骤102和步骤103均为基站通过信令配置，那么基站在步骤102中发送的第二信令和步骤103中发送的第三信令可以是同一个信令，其基站配置和发送信令的时间可以是同时配置，也可以不同时配置，本申请对基站配置的具体时间的先后顺序不做限定。对第一信令、第二信令和第三信令先后发送的时间顺序也不做限定。
步骤104：UE接收基站发送的至少一个信令。
其中，所述至少一个信令包括前述基站发送的所述第一信令、所述第二信令和/或所述第三信令。
可选的，在UE和基站预先约定所述第二信息所指示或包括的对应关系的情况下，可以不接收所述第三信令，此时，步骤104中UE仅接收第一信令和第二信令。例如，在协议中规定第二信息所指示或包括的对应关系。
步骤105：UE获取所述第一空间相关参数中的一个或多个目标空间相关参数。
所述获取可以理解为，UE在第一空间相关参数中确定一个或多个目标空间相关参数。
具体地，在一种可能的实现方式中，步骤105包括：根据第一信息确定所述一个或多个空间相关参数。更具体地对该步骤的确定过程将会在后面的实施例四中详细介绍，此处暂不做说明。
可选的，在另一种可能的实现方式中，步骤105包括：根据第一信息以及第二信息确定所述一个或多个空间相关参数。
进一步地，如图5所示，根据第一信息以及第二信息确定所述一个或多个目标空间相关参数具体包括：
步骤1051：UE根据所述至少一个信令确定目标空间相关参数集合。
进一步地，根据上述第二信令配置的M个空间相关参数集合，第三信令中携带的第二信息内容确定所述目标空间相关参数的过程如下：
第1步，UE接收第二信令配置的两个空间相关参数集合。
可选的，在一种可能的场景中，M＝2，表2所示空间参数集合{TCI a1，TCI a2，……，TCI a8}中的空间相关参数均用于指示来自同一个TRP的信息的空间相关参数，比如TPR1；表3所述的空间参数集合{TCI b1，TCI b2，……，TCI b8}可用于指示来自另一个TRP的信息的空间相关参数，比如TPR2。
第2步，UE获取第一信息，以及所述第一信息与至少一个空间相关参数或空间相关参数集合之间的对应关系。可选的，所述对应关系包括以上情况1至情况5中的一 种或多种。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。第一信息可以通过第一信令、第二信令、第三信令中的一个或多个信令指示，还可以是其他信令指示。
第3步，UE根据第三信令中的第二信息确定第2步中有效的空间相关参数集合，并将该有效的空间相关参数集合作为所述目标相关参数集合。
步骤1052：UE根据所述第一信令中所述第一字域的状态值，在所述目标空间相关参数集合中确定所述一个或多个目标空间相关参数。
所述第一字域的状态值为上述表2或表3中的“value of TCI field”的任意一个，在目标相关参数集合确定的情况下，根据所述表2或表3的对应关系，能够确定出其中一个TCI字域的状态值所对应的TCI状态ID。
例如，在所述第一字域的状态值为“000”时，对应的TCI状态ID值为a1。
步骤106：UE根据所述一个或多个目标空间相关参数接收所述第一信道。
UE使用TCI状态ID a1接收PDSCH。具体地，所述接收PCSCH的传输可与现有技术相同，本实施例对此不做详细说明。
下面对本实施例对上述步骤1051和步骤1052的具体实现过进行说明。首先，对于上述步骤103中的各种不同情况，可以采用以下处理方式：
(1)针对上述“情况1”的确定方法。
基站配置DMRS port CDM group和TCI state ID/TCI table的关联关系，
当DMRS类型(DMRS type)为1时，UE最多被指示2个DMRS port CDM group，其关联关系如下表4所示：
DMRS port CDM group取值 TCI清单/表
00 TCI list 1{TCI a1，TCI a2，…，TCI a8}/TCI table 1
01 TCI list 2{TCI b1，TCIb2，…，TCI b8}/TCI table 2
表4
当DMRS类型(DMRS type)为2时，UE最多被指示3个DMRS port CDM group，其关联关系如下表5所示：
DMRS port CDM group取值 TCI清单/表
00 TCI list 1{TCI a1，TCI a2，…，TCI a8}/TCI table 1
01 TCI list 2{TCI b1，TCIb2，…，TCI b5}/TCI table 2
10 TCI list 3{TCI b6，TCI b7，…，TCI b16}
表5
可选地，DCI信令中还包括传输块(transport block)字域，用于指示CW(codeword)信息(如传输的CW的个数等)。
可选地，DCI信令中还包括天线端口(antenna port)字域，用于指示DMRS端口信息，一种可能的对应关系如图6所示或参考38.212中的表。
在步骤1501中，UE先根据antenna port值和如图6所示的对应关系确定DMRS端口号，再根据所述DMRS端口号确定该DMRS端口号所属的DMRS端口CDM组，然后根据该DMRS端口CDM组确定当前TCI字域指示的有效TCI集合或表/清单，作为所述目标空间相关参数集合。
例如，UE获取第一信令中的第二字域，所述第二字域为天线端口(antenna port)字域，根据该天线端口字域指示的天线端口值(antenna port value)，比如天线端口值为2，以及图6所示的对应关系，确定天线端口值2所对应的DMRS port为(0，1)；再确定DMRS port(0，1)所属的CDM group。
例如：协议中预定义的DMRS port的CDM group分组的情况如下：
DMRS type 1(支持最多8个port):DMRS port{0,1,4,5}属于CDM group 0，DMRS port{2,3,6,7}属于CDM group 1；
DMRS type 2(支持最多12个port):DMRS port{0,1,6,7}属于CDM group 0，DMRS port{2,3,8,9}属于CDM group 1，DMRS port{4,5,10,11}属于CDM group 2。
则在一种可能的实现方式中，UE根据DMRS端口号(0，1)可以判断出其可以属于DMRS type1或者DMRS type2的CDM group 0，再根据RRC信令的DMRS downlink Config确定DMRS的类型，比如属于DMRS type1，则UE确定天线端口值2所对应的DMRS port CDM group属于DMRS type1的CDM group 0，即确定了上述表4和表5中的表4为有效的关联关系表。然后再根据CDM group 0二进制表示“00”确定第一空间相关参数为“00”所对应的TCI list 1或TCI table 1{TCI a1，TCI a2，…，TCI a8}。
可选的，所述TCI list 1或TCI table 1也称目标相关参数集合。
最后，在步骤1052中，UE根据所述第一信令中所述第一字域的状态值，在所述目标空间相关参数集合中确定所述目标空间相关参数。
例如UE获取第一信令的第一字域指示的状态值为“00”，则在所述目标空间相关参数集合TCI list 1或TCI table 1中查找“00”所对应的TCI state ID为a1，进而确定所述第一空间相关中的一个空间相关参数a1为所述目标空间相关参数，UE使用TCI状态ID a1接收PDSCH。
(2)针对上述“情况2”的确定方法。
基站配置CORESET ID和TCI state ID/TCI table的关联关系。
如表6所示，示出了一种CORESET ID和TCI state ID/TCI table的关联关系，该关联关系可以通过协议预定义。
CORESET ID取值 TCI list/TCI table
CORESET ID 1 TCI list 1{TCI a1，TCI a2，…，TCI a8}/TCI table 1
CORESET ID 2 TCI list 2{TCI b1，TCI b2，…，TCI b8}/TCI table 2
… …
CORESET ID n TCI list 2{TCI b6，TCI b10，…，TCI b16}/TCI table X
表6
UE获取第一信令，根据所述第一信令确定第一信息，所述第一信息为第一信令所在的CORESET的标识(CORESET ID)。
上述步骤1051：UE根据至少一个信令确定目标空间相关参数集合，具体包括：UE根据第一信令所在的CORESET的标识和表6所示的关联关系确定当前第一字域所指示的TCI list或TCI table，并作为目标空间相关参数集合，该目标空间相关参数集合中所包含的空间相关参数为第一空间相关参数。
例如，当所述第一信令的第一字域所在的CORESET ID为1时，其关联的第一空间相关参数为TCI list 1或TCI table 1；当所述第一信令的第一字域所在的CORESET ID为2时，其关联的第一空间相关参数为TCI list 2或TCI table 2。本实施例中，设第一信令的第一字域所在的CORESET ID为2，则所述目标空间相关参数集合为TCI list2或TCI table 2，所述第一空间相关参数为{TCI b1，TCI b2，…，TCI b8}。
上述步骤1052具体包括：UE根据所述第一信令中所述第一字域的状态值，比如所述状态值为“001”，则在所述目标空间相关参数集合{TCI b1，TCI b2，…，TCI b8}中与TCI状态值“001”具有对应关系的TCI state ID为b2，即确定了TCI状态ID b2为目标空间相关参数。
(3)针对上述“情况3”的确定方法。
同理地，当第一信息为第一信令所在的搜索空间集合的标识时，需要基站配置search space ID和TCI state ID/TCI table的关联关系。
如表7所示，示出了一种search space ID和TCI state ID/TCI table的关联关系，该关联关系可以通过协议预定义。
Figure PCTCN2019114613-appb-000004
表7
上述步骤1051，具体包括：UE根据第一信令所在的CORESET的标识的取值和表7所示的关联关系确定当前第一字域所指示的TCI list或TCI table，即为目标空间相关参数集合，该目标空间相关参数集合中所包含的空间相关参数为第一空间相关参数。
例如，本实施例中，设第一信令的第一字域所在的search spaceID为取值2，则所述目标空间相关参数集合为TCI list 2或TCI table 2，所述第一空间相关参数包括{TCI b1，TCI b2，…，TCI b4}或者{TCI b1，TCI b2，…，TCI b8}。
上述步骤1052具体包括：UE根据所述第一信令中所述第一字域的状态值，比如所述状态值为“001”，则在所述目标空间相关参数集合中与TCI状态值“001”具有对应关系的TCI状态ID为b2，即确定了TCI状态ID b2为目标空间相关参数。
(4)针对其它情况的确定方法。
情况4：在所述第一信息为第一信令中的至少一个第二字域指示的DMRS端口标识的情况下，以及，情况5：在所述第一信息为第一信令中的至少一个第二字域指示的码字信息的情况下，所述第二信息用于配置所述码字与空间相关参数之间的对应关系，UE确定一个或多个目标空间相关参数的过程将会在下面的实施例中详细说明。
本实施例提供的方法，终端通过接收基站发送的第一信令，所述第一信令的配置有第一字域的状态值，根据该状态值的指示，终端从候选的空间相关参数或空间相关参数集合中获取一个或多个目标空间相关参数，并利用该一个或多个目标空间相关参数接收信道，从而解决了多个DCI信令各调度一份数据，每份数据来自不同TRP的场 景时的空间相关参数的指示问题，以及一个DCI信令调度的数据来自不同TRP的场景时的QCL信息指示问题，或者多波束/多链路/多层传输时的QCL信息指示问题。
另外，本方法由于第一字域的多个候选状态值中至少有一个状态值对应两个或两个以上空间相关参数，所以相比于现有的一个状态值仅对应一个空间相关参数而言，增加了TCI信息配置的灵活性。并且配置有一个候选状态值对应多个空间相关参数的关联关系还可以节约指示开销，比如，原指示16种空间相关参数时需要占用4比特空间，例如“0000”，而采用本方法配置的16种对应关系仅需要3比特空间，所以本实施例提供的方法在保证了TCI信息指示的灵活度的同时，还能节省指示开销。
可以理解地，本申请的各个实施例仅仅例举了一个或多个空间相关参数为TCI状态的情形，还可以包括其它的目标空间相关参数，比如本实施例中所述的TCI状态，可以替换为QCL或者是与所述第一信道具有QCL关系的参考信号。例如，在本申请的各个实施例中，若UE获取第一信息确定了当前指示UE的QCL信息，且该QCL信息中包括两个参考信号RS，例如RS1和RS9，则所述目标空间相关参数为RS1和RS9，则UE根据RS1和RS9接收所述第一信道。
同理地，对于TCI状态而言，一个TCI ID中可以包括两个参考信号，比如RS1和RS2，分别用于指示不同波束的传输，可以针对单TRP或者多TRP的场景。
此外，可以理解地，所述预留是指所述天线端口值。DMRS端口号、DMRS CDM组的个数或码字个数等暂时不填充，待后续确定或设定时填充具体的数值，并且在填充具体数值之后可以根据对应关系确定一个或多个目标空间相关参数。
实施例二
本实施例与实施例一相似，区别在于，步骤102中基站发送的第二信令，该第二信令配置的M个空间相关参数集合中，至少有一个空间相关参数集合的至少两个空间相关参数对应第一字域的多个候选状态值中的至少一个状态值，比如TCI字域状态值“000”对应TCI状态ID为c1和c9。
在这种情况下，一个DCI调度的数据来自两个不同的TRP，即非相干联合发送(Non coherent joint transmission，NCJT)场景，在该场景下基站配置关联关系，以及UE确定目标空间相关参数的过程具体包括：
参见图7，步骤201：基站发送第一信令。
该步骤与前述实施例一的步骤101相同，此处不再赘述。
步骤202：所述基站发送第二信令。
其中，步骤202所述基站利用所述第二信令配置M个空间相关参数集合，所述M个空间相关参数集合中P个第二空间相关参数和Q个第三空间相关参数。进一步地，所述P个第二空间相关参数与第一取值之间具有对应关系，所述Q个第三空间相关参数与第二取值之间具有对应关系。
其中所述第一取值和所述第二取值为以下任意一种：第二字域所指示的DMRS端口号、或DMRS端口所属的组的标识、或码字信息；控制资源集合的标识；搜索空间集合的标识；或者天线面板标识。
例如，一种具体的配置方式如表8、表9和表10所示，其中，表8所示的8个(P＝8)第二空间相关参数，这些空间相关参数TCI状态ID从a1至a8均用于指示来自TRP1 的波束传输；表9所示的8个(Q＝8)第三空间相关参数，这些空间相关参数TCI状态ID从b1至b8均用于指示来自TRP2的波束传输；表10中示出了8组第四空间相关参数，且每组第四空间相关参数中包括两个TCI状态ID，可用于指示来自两个TRP的波束传输。
Figure PCTCN2019114613-appb-000005
表8
Figure PCTCN2019114613-appb-000006
表9
Figure PCTCN2019114613-appb-000007
表10
可选的，在表8和表9的对应关系中，每个候选状态值所对应的TCI状态ID的个数可以是2个；如表10所示，一个候选状态值所对应的TCI状态ID的个数可以是2个，还可以是3个或者更多个，具体地个数可以由基站配置来决定。
本实施例中，对于包含如表10所示的一个候选状态值对应2个空TCI状态ID的情况，如何选择目标空间相关参数的方法进行说明。
具体地，本实施例基站根据第二信令配置的M个空间相关参数集合有3个，M＝3，分别是：8个第二空间相关参数组成的空间相关参数集合{TCI a1，TCI a2，……TCI a8}，如表8所示，对应单个TRP1的空间相关参数指示信息；8个第三空间相关参数组成的空间相关参数集合{TCI b1，TCI b2，……TCI b8}，如表9所示，对应单个TRP2的空间相关参数指示信息；另外还有8组第四空间相关参数组成的空间相关参数集合{TCI  c1+c9，TCI c2+c10，……，TCI c8+c6}，如表10所示，对应两个TRP的空间相关参数指示信息。
可选的步骤，步骤203：所述基站发送第三信令。
步骤204：UE接收基站发送的至少一个信令，所述至少一个信令包括第一信令、第二信令和/或第三信令。
所述步骤203和步骤204与上述的实施例一的步骤103和步骤104相同，此处不再赘述。
步骤205：所述UE在第一空间相关参数中确定一个或多个目标空间相关参数，包括：
根据上述情况1、情况2和情况3，具体确定过程如下：
(1)针对上述“情况1”的确定方法。
一种可能的实现方式包括：
所述第一空间相关参数中包括：一个第二空间相关参数(TCI a1)和一个第三空间相关参数(TCI b1)和一组第四空间相关参数(TCIc1+c9)。
在单个TRP1的传输场景下，根据transport block字域和天线端口字域来确定所述目标空间相关参数：
具体地，如果UE解析码字个数为1或者为2(1个CW或2个CW)，天线端口字域的值为0至3，天线端口字域指示的DMRS port CDM group标识的取值为第一取值“00”，则所述目标空间相关参数为第二空间相关参数，例如TCI a1。
在单个TRP2的传输场景下，根据transport block字域和天线端口字域来确定所述目标空间相关参数。
具体地，如果UE解析码字个数为1或者为2(1个CW或2个CW)，天线端口字域为0至3，天线端口字域指示的DMRS port CDM group标识的取值为第二取值“01”，所述目标空间相关参数为第三空间相关参数，例如TCI b1。
在Multi TRP的传输场景下，根据transport block字域和天线端口字域来确定所述目标空间相关参数。
具体地，如果UE解析码字个数为2(2个CW)，天线端口字域为4至31时，如DMRS port CDM group标识的取值个数大于1的情况下，所述目标空间相关参数为第四空间相关参数，例如TCIc1和c9。
进一步地详细说明。
基站配置DMRS端口所属的CDM组的标识的取值和TCI状态ID之间的关联关系，其中，所述DMRS端口所属的CDM组的标识可以通过DMRS port CDM group来表示，比如以二进制“0/1”来表示DMRS port CDM group和TCI state ID/TCI table的关联关系，如下表11和表12所示，对于单个TRP的关系。
Figure PCTCN2019114613-appb-000008
表11
参见表11，当DMRS类型(DMRS type)为1时，UE最多被指示2个DMRS port CDM group。其中，“00”表示所述第一取值，“01”表示所述第二取值，且该第一取值对应第二个空间相关参数，包括TCI a1至a8，可选的，将这些关联的第二空间相关参数所组成的集合表示为“TCI list x1”或“TCI table 1”。
同理地，“01”表示所述第二取值，且该第二取值对应第三个空间相关参数，包括的空间相关参数有TCI b1至b8。可选的，将这些关联的第三空间相关参数所组成的集合表示为“TCI list x2”或“TCI table 2”。
需要说明的是，对于“TCI list x”和“TCI table”之间的关系，“TCI list x”可以是“TCI table”中的一个子集，或者与“TCI table”相同，或者与TCI table中的TCI ID有部分交集，本申请对此不予限制。
另外，所述关联关系还可以如表12所示，表12示出了用于多TRP传输场景下的DMRS port CDM group取值与一个或多个空间相关参数TCI ID/TCI table之间的对应关系。
DMRS port CDM group取值 TCI清单/表
00 TCI list x1{TCI c1，TCI c2，…，TCI c8}
01 TCI list x2{TCI c9，TCI c10，…，TCI c16}
表12
同理地，当DMRS类型(DMRS type)为2时，所述基站配置的UE最多被指示3个取值与TCI状态ID之间的对应关系，即除了所述第一取值和所述第二取值之外，还包括第三取值。可选的，所述第三取值为“10”。
表13和表14分别示出了对于单TRP和多TRP场景下，DMRS类型为2时的DMRS port CDM group取值与各个空间相关参数之间的关系关系。
Figure PCTCN2019114613-appb-000009
表13
Figure PCTCN2019114613-appb-000010
表14
具体过程包括：
步骤2051：UE根据第一信令中的第二字域确定DMRS端口组的标识；
步骤2052：所述UE根据所述DMRS端口组的标识确定关联的一个或多个空间相关参数，作为候选的空间相关参数；
步骤2053：所述UE根据第一信令的第一字域确定第一空间相关参数；
步骤2054：所述UE在所述候选空间相关参数和所述第一空间相关参数中取交集，得到的一个或多个目标空间相关参数。
例如，在步骤2051，UE获取第一信令中的一个第二字域为天线端口字域，其中，该天线端口字域的取值(value)为10，根据上述实施例一中的表5所示，该天线端口值10所对应的DMRS端口号为0-3。
在步骤2052，根据协议中预定义的DMRS port的CDM分组的情况确定端口号0-3所在的CDM group：
比如，协议规定：
DMRS type 1(支持最多8port)：DMRS port{0,1,4,5}属于CDM group 0，DMRS port{2,3,6,7}属于CDM group 1；
对于DMRS type 2(支持最多12port)：DMRS port{0,1,6,7}属于CDM group 0，DMRS port{2,3,8,9}属于CDM group 1，DMRS port{4,5,10,11}属于CDM group 2。
则UE根据上述规定确定DMRS端口号为0-3属于CDM group 0或1。进一步地，所述CDM group 0或1是属于DMRS type 1还是2，可以通过基站配置的DCI来确定。例如基站通知UE当前的DMRS type为2，支持多TRP的数据传输，则所述UE根据上述表14的对应关系，可以确定CDM group 0所关联的候选空间相关参数为TCI list x1{TCI c1，TCI c2，…，TCI c8}，CDM group 1所关联的候选空间相关参数为TCI list x2{TCI c9，TCI c10，…，TCI c12}。
其中，CDM group“0”通过二进制“00”配置在表14的关联关系中，CDM group“1”通过二进制“01”配置在表14的关联关系中。
在步骤2053：所述UE根据第一信令的第一字域确定第一空间相关参数。比如所述第一信令中的第一字域为“000”，则通过上述表10的对应关系，确定状态值“000”所对应的第一空间相关参数为：TCI stateID c1和c9。
在步骤2054：所述UE取候选空间相关参数TCI list x1{TCI c1，TCI c2，…，TCI c8}、{TCI c9，TCI c10，…，TCI c12}和第一空间相关参数TCI c1、c9之间的交集，公共的空间相关参数为c1和c9，则UE确定该第一字域的状态值000所指示的目标空间相关参数为TCI c1和c9。
需要说明的是，本实施例中，对上述步骤2051和步骤2053执行的先后顺序不做具体限制，即可以同时执行，也可以先后执行，比如先执行步骤2053，再执行步骤2051和2052。
可以理解地，本实施例中还可以通过DCI指示其它值来确定目标空间相关参数。比如，UE接收DCI信息中指示天线端口值(antenna port value)为2，UE确定该天线端口值为2时所对应的DMRS ports为(0，1)，属于CDM group 0，且DMRS type1；所述UE根据CDM group 0确定使用表13所示的TCI list x1或者table 1，最后UE根据第一信令中第一字域状态值“000”所对应的TCI状态ID a1解析出所述目标空间相关参数为TCI a1。
步骤206：UE根据所述目标空间相关参数接收所述第一信道。
具体地，UE使用TCI状态ID c1接收CDM组0所对应的PCSCH数据，使用TCI  state ID c9接收CDM组1所对应的PCSCH数据。
或者，UE使用TCI状态ID a1接收PDSCH的数据。
可选的，对于上述其它情况下的目标空间相关参数的确定方法可以参见上述的实施例一的确定过程，本实施例对此不予限制。
本实施例提供的方法，对于一个DCI信令调度的数据来多个TRP的场景下，在不增加DCI比特开销的情况下，通过第一信令和第三信令来指示支持单TRP和多个TRP传输的目标空间相关参数，使得TCI信息具有较大的灵活性，同时不增加指示信息的开销。
可选的，在本实施例的一种可能的实现方式中，步骤202中，基站根据所述第二信令配置M个空间相关参数集合，还可以包括两个空间相关参数集合，M＝2，例如下面的表15所示和上述表10所示，
Figure PCTCN2019114613-appb-000011
表15
在表15中，指示的TCI字域的候选状态值包括“000”至“111”共8种状态值，分别对应8种TCI状态ID，其中TCI状态ID从a1至a4可以对应于TRP1的波束传输，TCI状态ID从b1至b4可以对应于TRP2的波束传输，具体地传输场景可以参见图2c。
具体地确定方式包括：所述第一空间相关参数中包括第二空间相关参数(TCIa1)和第三空间相关参数(TCIc1+c9)。
在单个TRP1的传输场景下，根据transport block字域和天线端口字域来确定所述目标空间相关参数：
具体地，如果UE解析码字个数为1或者为2(1个CW或2个CW)，天线端口字域的值为0至3，天线端口字域指示的DMRS port CDM group标识的取值个数为1个，则所述目标空间相关参数为第二空间相关参数，例如TCI a1。
在Multi TRP的传输场景下，根据transport block字域和天线端口字域来确定所述目标空间相关参数。
具体地，如果UE解析码字个数为2(2个CW)，天线端口字域为4至31时，如CDM group大于1的情况下，所述目标空间相关参数为第四空间相关参数，例如TCIc1+c9。
需要说明的是，本申请的各个实施例中根据目标空间相关参数的不同形式，指示的接收信道的方式会有不同。除了本实施例中指示的根据TCI状态ID来接收第一信 道之外，还可以通过以下方式：
一种可能方式是，所述第一空间相关参数为TCI状态ID，该TCI状态ID中指示一个或多个同位置假设(Quasi-collocation，QCL)信息时，UE根据一个或者多个QCL信息可以确定目标空间相关参数，比如TCI状态ID中包括QCL1和QCL2，其中，所述QCL1和QCL2可以分别对应TRP1和TRP2，则UE可以按照所述QCL1和QCL2的指示来接收对应信道的数据。
另一种可能方式是，所述目标空间相关参数为QCL信息所指示的K个RS中一个或多个RS，比如QCL信息指示两个空间相关参数分别是RS1和RS2，对应来自两个不同的TRP传输，则UE可以根据该QCL信息完成接收侧波束赋形或接收处理过程。应理解地，UE可以根据QCL信息指示的源参考信号的接收波束信息，进而接收目标参考信号。
现有协议中的TCI、QCL、RS的配置方式：一个TCI ID指示一个TCI state的信息如下：
Figure PCTCN2019114613-appb-000012
对于每个TCI指示一个QCL信息，该信息可以为多种类型中的一种或多种，每种类型的QCL信息中仅包括一个参考信号。例如QCL信息中指示某一个TCI ID，则本申请实施例中的TCI ID a1可以为参考信号RS1。
另外，还可以扩展到多个空间相关参数的情况：
例如方式1：一个TCI字域的一个状态值关联两个TCI ID，每个TCI ID指示的TCIstate与现有协议相同。
方式2：一个TCI字域的一个状态值关联一个TCI ID，该TCI ID指示的TCI state包括一个QCL信息，该QCL信息可以为上述QCL类型A至类型D中的一种或多种，且每种类型的QCL信息中包括多个参考信号。
方式3：一个TCI字域的一个状态值关联一个TCI ID，该TCI ID指示的TCI state包括两个QCL信息，该QCL信息可以为上述QCL类型A至类型D中的一种或多种， 且每种类型的QCL信息中仅包括一个参考信号。
实施例三
本实施例还提供了另一种信息传输方法，用于指示在一个DCI调度的数据来自单个或多个TRP的场景下，选择当前调度的目标空间相关参数。
具体地，本实施例所提供的方法可以应用于动态选择发射节点(Dynamic point selection，DPS)、NCJT的技术场景下。且一个DCI信令调度一份数据，该份数据可以来自不同TRP，即NCJT传输方式；或者一个DCI信令调度一份数据可能来自于一个TRP，或者来自于另一个动态的TRP。
本实施例中针对于上述实施例一和二的“情况1”进行说明，与上述实施例的区别在于基站配置的M个空间相关参数集合中，每个第一字域的候选状态值可以指示至少一个TCI状态ID，且所述至少一个TCI状态ID可以支持单个TRP或者多个TRP。
例如，上述实施例一中的步骤102或实施例二中的步骤202，基站发送第二信令，所述第二信令用于指示PDSCH候选QCL的TCI state表格或TCI state集合，本实施例中配置的M个空间相关参数集合中，M＝1，如表16所示，
Figure PCTCN2019114613-appb-000013
表16
表16示出了一个每个TCI字域的候选状态值与两个TCI ID之间的关联关系，该两个TCI ID可以支持单个TRP或多个TRP的波束传输。
此外，还包括一个TCI字域的候选状态值与一个TCI ID的关联关系，即直接指示一个TCI ID的情况，比如用于支持来自一个TRP的两个DMRS port所属的CDM组共用一个QCL。
需要说明的是，该关联关系可以是直接的关联关系，也可以是间接的关联关系。其中，所述间接的关联关系是指通过其他的一个或多个中间量获得的关联关系，比如中间量是TRP ID或cell ID等。
然后，UE接收来自基站发送的至少一个信令，包括第一信令、第二信令和第三信令，所述第一信令和第三信令的内容与前述实施例一和二相同，此处不详细赘述。
所述UE确定一个或多个空间相关参数，并作为所述目标空间相关参数的过程如下：
基站通过第三信令配置DMRS port CDM group和TCI状态ID的关联关系，可选的，该关联关系也可以是协议预定义的，如下表17和表18所示(这个关联关系包括但不限于下表中的体现方式)。
当DMRS type 1时，UE最多被指示2个DMRS port CDM group取值，其关联关系如下表所示：
DMRS port CDM group取值 TCI清单/表
00 TCI list C1{TCI c1，TCI c2，…，TCI c8}
01 TCI list C2{TCI c9，TCI c10，…，TCI c16}
表17
当DMRS type 2时，UE最多被指示3个DMRS port CDM group，其关联关系如下表所示：
DMRS port CDM group取值 TCI清单/表
00 TCI list 1{TCI c1，TCI c2，…，TCI c8}
01 TCI list 2{TCI c9，TCI c10，…，TCI c12}
10 TCI list 3{TCI c13，TCI c14，…，TCI c16}
表18
可选的，上表配置的关联关系中，每个DMRS port CDM group关联的某些TCI ID可以是相同的，如：TCI c1＝TCI c12。
可选的，上表中的每个DMRS port CDM group关联的任意TCI ID均不相同。
可选的，上表中的每个DMRS port CDM group关联的TCI ID个数可以大于TCI table关联的TCI ID数。
可选的，基站发送第三信令(DCI信令)中包括TCI字域，用于指示接收数据的波束信息。
可选的，所述第三信令可以是所述第一信令。
可选的，所述DCI信令(比如第三信令)中还包括第二字域，比如transport block字域，用于指示码字(codeword，CW)信息，例如码字个数。
可选的，所述DCI信令中的第二字域还包括antenna port字域，用于指示DMRS port信息，如上述实施例一的表5所示。
具体地，确定过程包括：
UE根据协议预定义的DMRS port和DMRS port CDM组的关系与第三信令中的至少一个第二字域，确定当前DCI调度的PDSCH的DMRS port所在的CDM group号Z；UE根据第一信令中的TCI字域的状态值X，以及状态值X对应至少一个空间相关参数，表16所示的关联关系，确定状态值X所对应的TCI ID X1和TCI ID X2；UE再根据表17或表18的关联关系及CDM group号Z，确定该CDM group Z关联TCI ID X2，则UE确定有效TCI ID为X2，最后所述UE根据TCI ID X2接收PDSCH。
在一具体的实例中，比如，第三信令中的第二字域携带的antenna port字域value为2，第一信令中的第一字域的状态值为0，二进制表示为“000”，则根据上述关系确定该antenna port value2所对应的DMRS端口号为(0,1)。
进一步地，根据协议中预定义的DMRS端口号的CDM group分组的情况：
DMRS type 1(支持最多8port)：DMRS port{0,1,4,5}属于CDM group 0，DMRS port{2,3,6,7}属于CDM group 1；
DMRS type 2(支持最多12port)：DMRS port{0,1,6,7}属于CDM group 0，DMRS port{2,3,8,9}属于CDM group 1，DMRS port{4,5,10,11}属于CDM group 2。
UE确定当前DMRS port(0，1)属于CDM组0，UE根据CDM组0确定使用TCI table解析该状态值关联到TCI state ID为c1，UE使用TCI ID c1对应的波束接收 PDSCH。antenna port字域指示的DMRS port在CDM组1时，确定UE使用的TCI ID c9对应的波束接收PDSCH。
表20示出了一种天线端口字域指示的DMRS port在CDM组0和CDM组1时，确定TCI ID为c1+c9。
Figure PCTCN2019114613-appb-000014
表20
本实施例提供的方法，在一个DCI调度的数据来自不同的TRP的情况下，UE结合基站半静态配置的第一字域的候选状态值与一个或多个空间相关参数集合的关联关系，通过第一信令的至少一个天线端口字域或传输块字域，及DMRS端口的CDM组与TCI ID之间的关系，获取当前有效的目标TCI状态ID，并作为目标空间相关参数来传输波束。本方法在保证了TCI信息指示灵活度的同时，还不增加指示信息的开销。
实施例四
本实施例提供的方法区别于上述的实施例，主要是步骤105中，UE确定第一空间相关参数中的一个或多目标个空间相关参数，需要根据第一信息来确定所述目标空间相关参数。
本实施例应用的技术场景包括但不限于DPS场景、NCJT场景。
下面就本实施例提供的方法进行详细说明。
所述方法包括：
UE接收基站发送的至少一个信令，所述至少一个信令包括第一信令、第二信令和第三信令。
其中，所述第一信令中包括第一字域，所述第一字域包括目标状态值，该目标状态值用于指示接收第一信道的第一空间相关参数。可选的，所述第一字域为TCI字域，所述目标状态值为：000、001、010、011、100、101、110、111中的任意一个。
另外，所述第一信令中还包括第一信息，所述第一信息为第一信令的至少一个第二字域。可选的，所述第二字域为传输块(transport block)字域或天线端口(antenna port)字域。
进一步地，所述传输块字域用于确定当前第一信令调度的PDSCH包含的码字(codeword，CW)个数信息。
可选的，所述天线端口字域和所述码字个数信息可用于确定当前第一信令调度的PDSCH是来自单个TRP还是多个TRP。
进一步地，所述UE根据所述第一信息确定所述第一空间相关参数中的一个或多 个目标空间相关参数，包括以下各种可能的实现方式：
第一种可能的实现方式，
参见表21，所述第一空间相关参数中包括第二空间相关参数和第三空间相关参数。对于基站配置的一个TCI字域的状态值对应两个TCI状态ID的情况，并规定：
在码字个数为1的情况下，所述目标空间相关参数为第二空间相关参数；和/或，
在码字个数为2的情况下，所述目标空间相关参数为第二空间相关参数和第三空间相关参数，其中第一个CW根据第二空间相关参数接收，第二个CW根据第三空间相关参数接收。
例如，第一信令中的TCI的状态值为“000”，当UE根据传输传输块字域解析CW个数为1时，默认使用第二空间相关参数TCI c1来接收第一信道。当CW个数为2时，默认第二空间相关参数TCI c1来接收第一信道，并使用第三空间相关参数TCI c5来接收所述第一信道，此时，所述目标空间相关参数为TCI c1和c5。
UE解析的TCI ID值如下表21所示，其中该TCI ID用于接收PDSCH：
Figure PCTCN2019114613-appb-000015
表21
其中，表21中，TCI strate ID c1简写为“TCI c1”，CW1表示第一个码字，CW2表示第二个码字。
第二种可能的实现方式，
对于基站配置的一个TCI字域的候选状态值对应两个TCI状态ID的情况，且在两个码字针对于单个TRP和多个TRP(NCJT)的场景时，规定：
在码字个数为1的情况下，则确定所述目标空间相关参数为第二空间相关参数；
在码字个数为2的情况下，天线端口字域取值为0至3(单TRP)时，所述目标空间相关参数为第二空间相关参数，其中CW1根据第二空间相关参数接收，CW2根据第二空间相关参数接收；
在码字个数为2的情况下，天线端口字域取值为4至31(multi TRP)时，所述目标空间相关参数为第二空间相关参数和第三空间相关参数，其中CW1根据第二空间相关参数接收，CW2根据第二空间相关参数接收。
例如，当码字个数为1时，默认使用第一信令中的TCI字域指示的TCI状态值“000”关联的TCI ID中的TCI c1，所述TCI c1为所述目标空间相关参数；
当码字个数为2时，根据天线端口字域指示的天线端口号来确定一个或多个目标空间相关参数。
UE解析的TCI ID值如下表22所示，其中该TCI ID用于接收PDSCH：
Figure PCTCN2019114613-appb-000016
表22
其中，对于多个TRP(比如NCJT)和单个TRP场景的的区分可以采用如下方式，结合图8例如：
DMRS类型1，最大长度(max length)为2，天线端口(antenna port)字域值(value)为{4-31}中的至少一个；
DMRS类型2，最大长度(max length)为1，天线端口(antenna port)字域值(value)为{2-31}中的至少一个；
DMRS类型2，最大长度(max length)为2，天线端口(antenna port)字域值(value)为{6-63}中的至少一个，可表示NCJT场景。
其它的状态可以表示单TRP场景。
可选的，本实现方式还可以另一种替代的实现方式，具体包括：
在码字个数为1的情况下，所述目标空间相关参数为第一空间相关参数，例如TCI c6；
在码字个数为2的情况下，天线端口字域取值为0至3(single TRP)的情况下，所述目标空间相关参数为第二空间相关参数，其中CW1根据第二空间相关参数接收，CW2根据第二空间相关参数接收；
码字个数为2，天线端口字域取值为4至31(multi TRP)的情况下，所述目标空间相关参数为第二空间相关参数和第三空间相关参数，其中CW1根据第二空间相关参数接收，CW2根据第三空间相关参数接收。
第三种可能的实现方式：
所述UE根据第一信令的两个第二字域来确定所述第一空间相关参数中的一个或多个空间相关参数，所述两个第二字域为天线端口字域和传输块字域。
具体地，包括：UE根据所述传输块字域确定根据CW个数信息，然后根据所述天线端口字域，以及上述实施例中的第二信息，所述第二信息用于配置有关所述第一信息与所述一个或多个空间相关参数之间的对应关系，确定所述目标空间相关参数。
可选的，本方法适用于限制NCJT是不同CW的场景。
具体地，所述第一空间相关参数中包括第二空间相关参数和第三空间相关参数(TCI5)。
例如，当码字个数为1的情况下，默认所有DMRS的天线端口都使用基站指示的TCI ID，不需要区分DMRS port CDM组，也即每个DMRS port所属的CDM组均使用基站指示的TCI ID接收信道，此时可以对应单TRP单波束传输场景。例如目标空间 相关参数为TCI c4。
当码字个数为2时，可以按照上述实施例三的方法解析和确定目标空间相关参数。
例如，当码字个数为2，DMRS CDM group标识第一取值00的情况下，所述目标空间相关参数为第二空间相关参数，其中CW1根据第二空间相关参数接收，CW2根据第二空间相关参数接收。
当码字个数为2时，DMRS CDM group标识第二取值01的情况下，所述目标空间相关参数为第三空间相关参数，其中CW1根据第三空间相关参数接收，CW2根据第三空间相关参数接收；
当码字个数为2时，DMRS CDM group标识包括第一取值00和第二取值01，所述目标空间相关参数为第二空间相关参数和第三空间相关参数，其中CW1根据第二个空间相关参数接收，CW2根据第三个空间相关参数接收。
例如：UE解析的TCI ID值如下表23所示，其中该TCI ID用于接收PDSCH：
Figure PCTCN2019114613-appb-000017
表23
进一步地，对于该方法还可以进一步地限定，在码字个数为2时，一个或多个空间相关参数TCI ID的确定方法，如图8所示，例如：
DMRS类型1，最大长度(max length)为2，天线端口(antenna port)字域值(value)为{4-31}中的至少一个；
DMRS类型2，最大长度(max length)为1，天线端口(antenna port)字域值(value)为{2-31}中的至少一个；
DMRS类型2，最大长度(max length)为2，天线端口(antenna port)字域值(value)为{6-63}中的至少一个，可表示NCJT场景。
本实施例提供了三种根据第一信息确定目标空间相关参数的方法，UE先通过第二字域指示的传输块字域确定码字个数，再根据预先配置的每个码字与TCI ID之间的关联关系确定每个码字使用的TCI ID，进而使得UE无论在单TRP传输还是多个TRP的场景下，均能够快速的确定目标TCI ID，保证了在TCI信息指示灵活性的同时，不增加额外指示开销。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。第一信息可以通过第一信令、第二信令、第三信令中的一个或多个信令指示，还可以是其他信令指示。
实施例五
本实施例提供了一种特殊的指示，关于于上述各个实施例，区别在于，对于特定范围的第一信令的第一字域中的状态值，指示特定的空间相关参数作为所述目标空间相关参数。
例如，所述第一字域的候选状态值包括第一范围和第二范围，
当所述第一字域的状态值为所述第一范围时，按照上述实施例一至四的方法确定目标空间相关参数；
当所述第一字域的状态值为所述第二范围时，确定所述目标相关参数为设定值。
例如，所述第一字域的状态值为从000至111共8个状态，其中，第一范围包括{000、001、010、011、100}共5个状态，所述第二范围包括{101、110、111}共3个状态。
则当所述第一字域的状态值为第一范围时，按照上述各个实施例的方法确定；当所述第一字域的状态值比如“101”为所述第二范围时，则设定所述目标空间相关参数为预设值TCI c4。
此外，当上述M＝1时，也可以采用本实施例单独设定指示的方法确定。
需要说明的是，上述各个实施例中，UE根据第二信息配置有关第一信令的第一信息与一个或多个空间相关参数之间的对应关系时，例如，DMRS port所在的CDM group信息与TCI list或TCI table之间的对应关系时，通过天线端口字域确定DMRS端口号(DMRS port)可以是连续的，也可以是非连续的。且无论UE根据第一信息的天线端口字域解析出的DMRS端口号是否为连续的，均可以采用上述本实施例一至实施例三的方法得到所述目标空间相关参数。
例如，当UE通过传输块字域确定当前码字个数为2时，可以按照本实施例三的方法解析得到目标TCI ID。当所述码字个数为1时，需要进一步判断Number of DMRS CDM group，如果Number of DMRS CDM group为1，关联的DMRS port为(0,1)，此时为连续的DMRS端口号；如果Number of DMRS CDM group为2，关联的DMRS port为(0,1，x….)、或(0,2)、或(0,2,4,6)，此时为不连续的DMRS端口号，均可以按照实施例四的“第三种可能的实现方式”来确定和得到目标TCI ID。
可选地，所述第一字域除了用于指示当前DCI信令的目标状态值之外，还可以包括多个其它状态值，用于直接指示UE采用某一状态值解析其对应的TCI ID，该方式主要用于一个TRP对应多个beam传输PDSCH的场景。
可选的，所述状态值还可以称为状态位。
可选的，所述DMRS port所在的CDM group信息可以为pattern(MU信息)。其中，MU信息时不作NCJT，DMRS CDM group number>DMRS port所在CDM group个数时，不作NCJT。
可选的，在上述各个实施例中，所述DMRS端口CDM组(DMRS port CDM group)可以为天线面板(panel)，则DMRS port CDM group的标识可以为panel ID。
可以理解的，本申请各个实施例中，所述天线面板也可以称为天线集合、无线电收发单元(tansceiver unit TXRU)(或称为无线电收发机组)、天线单元、天线群、水平天线集合、垂直天线集合、天线阵子、或天线端口集合等，本申请实施例并不限于此。
对应地，DMRS port CDM group与至少一个TCI ID之间的关联关系可以替换为panel ID与TCI ID的关联关系。可以理解地，相关的确定目标空间相关参数的方法与前述各个实施例一至三均相同，对此不详细赘述。
可选的，在上述实施例的另一种可能的实现中，当UE仅包括一个面板时，确定一个或多个目标空间相关参数时，UE还需要根据DMRS符号(symbol)个数以及各个信令中的信息来确定。例如，当DMRS symbol个数为1时，如果有两个或两个以上TCI ID同时指示UE接收第一信道，则此时UE在仅有一个面板情况下，只能支持其中一个TCI ID来进行波束传输。一种可能的确定方式是，UE默认所有DMRS port CDM group按照TCI状态指示的第一个CDM group所关联的TCI ID为所述目标空间相关参数；或者，在所有CDM group中port数最多的CDM group所关联的TCI ID为所述目标空间相关参数接收第一信道。
本申请实施例提供的信息传输方法，针对于不同的空间相关参数集合，基站通过DCI信令配置不同的关联关系，例如
A.基站根据第二信令配置M个空间相关参数集合，M≥1，其中包括每个第一字域的一个候选状态值与一个或多个TCI状态ID之间的映射关系。
B.UE根据第一信令中的至少一个第二字域，比如天线端口字域和传输块字域，以及所述天线端口字域指示的DMRS端口CDM组的标识与M个空间相关参数集合之间的对应关系，确定第一空间相关参数中的目标空间相关参数。
其中，所述目标空间相关参数包括TCI状态ID和QCL等。
C.第一字域的一个候选状态值可以对应一个或多个空间相关参数，例如候选状态值0对应TCI a1(实施例一)，或者对应TCI c1和c9(实施例二)。
D.一个DMRS端口CDM组标识的取值对应一个空间相关参数或空间相关参数集合，例如，DMRS port CDM group的第一取值“00”对应TCI list 1或TCI table 1，第二取值“01”对应TCI list 2或TCI table 2(实施例一)。
同理地，通过第三信令还配置，第一信令所在的CORESET ID标识，search space标识分别与一个空间相关参数或空间相关参数集合的关联关系，来匹配单TRP或多TRP的传输场景。
E.一个码字可以对应一个空间相关参数，例如第一个CW关联TCI ID1，第二个CW关联TCI ID2(实施例四)。
此外，本申请上述各个实施例还可以支持单TRP，单波束/链路的传输。
可选的，根据传输块字域指示的码字个数，可以直接或间接确定出第一空间相关参数中的目标空间相关参数，比如实施例四的三种具体实现方式。可以理解地，还可以包括其它的各种实现方式，例如根据传输块字域的取值，天线端口字域的取值，天线端口字域指示的信息的取值的不同，确定所述目标空间相关参数的方式不同，本申请对各种可能的方式不进行限制。
下面介绍与上述各方法实施例对应的装置实施例。
参见图9，为本申请实施例提供的一种通信装置的结构示意图。所述装置可以是终端，比如UE，或者可以用于终端设备的部件(例如芯片)。或者，该通信装置也可以是网络设备，比如基站，或者可用于网络设备的部件。进一步地，该通信装置可以 实现前述实施例中的终端的功能或操作，或者也可以实现前述实施例中的网络设备的功能或操作。
如图9所示，该通信装置可以包括接收单元901与处理单元902，可选的，所述通信装置还可以包括发送单元、存储单元或其他必要的单元模块。
在一种实现方式中，当所述通信装置用于实现对应于终端的操作或功能时，所述接收单元901用于接收第一信令，所述处理单元902用于获取所述第一空间相关参数中的一个或多个目标空间相关参数；以及，根据所述目标空间相关参数接收所述第一信道。
其中，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数。
可选的，在本实施例的一种具体实现中，所述接收单元901在接收所述第一信令之前，还用于接收第二信令，所述第二信令用于配置M个空间相关参数集合，M≥1。其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
进一步地，所述处理单元902中确定的所述第一空间相关参数中的一个或多个空间相关参数，具体包括：根据第一信息确定所述第一空间相关参数中的一个或多个空间相关参数。
其中，所述第一信息为以下至少一项：
所述第一信令中的至少一个第二字域；
所述第一信令所在的控制资源集合的标识；
所述第一信令所在的搜索空间集合的标识；
天线面板标识；
第一字域的状态值。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。第一信息可以通过第一信令、第二信令、第三信令中的一个或多个信令指示，还可以是其他信令指示。
可选的，所述空间相关参数包括：TCI状态ID、QCL信息或者RS等。
可选的，所述第二字域为传输块字域或者天线端口字域，所述传输块字域用于指示码字个数，所述天线端口字域用于指示至少一个DMRS端口号。
可选的，所述第一信令中的至少一个第二字域包括：第一信令的一个第二字域为传输块字域、或者第一信令的一个第二字域为天线端口字域、或者第一信令的两个第二字域，其中的一个第二字域为传输块字域，另一个第二字域为天线端口字域。
可选的，在本实施例的另一种具体的实现中，所述处理单元902根据第一信息确定所述第一空间相关参数中的一个或多个空间相关参数，具体包括：处理单元902根据第一信息和第二信息确定所述第一空间相关参数中的一个或多个空间相关参数。其中，所述第二信息通过第三信令承载，所述第二信息用于配置有关所述第一信息与所 述一个或多个空间相关参数之间的对应关系。
可选的，所述第二信息可通过协议预定义获得。
进一步地，所述有关所述第一信息与所述一个或多个空间相关参数之间的对应关系，包括以下任意一种：
所述第一信令中的至少一个第二字域指示的解调参考信号DMRS端口标识，与一个或多个目标空间相关参数的对应关系；
所述第一信令中的至少一个第二字域指示的DMRS端口组的标识，与一个或多个目标空间相关参数的对应关系；具体地，所述DMRS端口组的标识可以为DMRS端口所属的CDM组的标识；
所述第一信令中的至少一个第二字域指示的码字的信息，与一个或目标多个空间相关参数的对应关系；
所述第一信令所在的控制资源集合的标识，与一个或多个目标空间相关参数的对应关系；
所述第一信令所在的搜索空间集合的标识，与一个或多个目标空间相关参数的对应关系；
还包括：天线面板标识与一个或多个目标空间相关参数的对应关系。
应理解，本申请中，第一信息还可以是其他信息，如传输方式指示信息等，任何简单扩展或简单组合的方式均在本申请的保护范围内。第一信息可以通过第一信令、第二信令、第三信令中的一个或多个信令指示，还可以是其他信令指示。
可选的，所述M个空间相关参数集合中包括P个第二空间相关参数和Q个第三空间相关参数，所述P个第二空间相关参数与第一取值之间具有对应关系，所述Q个第三空间相关参数与第二取值之间具有对应关系：
其中所述第一取值和所述第二取值为以下任意一种：
第二字域所指示的DMRS端口号、或DMRS端口所属的组的标识、或码字信息；
控制资源集合的标识；
搜索空间集合的标识；
天线面板标识。
可选的，还可以包括第一字域的状态值。
可选的，在本实施例的又一种具体实现中，所述M个空间相关参数集合中的至少一个集合中包括所述P个第二空间相关参数；
所述M个空间相关参数集合中的至少一个集合中包括所述Q个第三空间相关参数，或者，所述M个空间相关参数集合中的至少一个集合由所述P个第二空间相关参数和所述Q个第三空间相关参数组成。
可选的，所述第一取值、第二取值和第三取值均可以通过二进制“0/1”来表示，比如00。
可选的，在本实施例的又一种具体实现中，所述第一空间参数中包括第二空间参数和第三空间相关参数，所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数，包括：在所述第二字域指示的码字个数为1的情况下，所述目标空间相关参数为所述第二空间相关参数或者所述第一空间相关参数。
可选的，在本实施例的又一种具体实现中，在所述第二字域指示的码字个数为2的情况下，所述目标空间相关参数为所述第二空间相关参数和所述第三空间相关参数；
或者，根据所述第一信令的天线端口字域的取值，确定所述目标空间相关参数为第二空间相关参数，
或第二空间相关参数和第三空间相关参数，其中，第一个码字根据所述第二空间相关参数接收第一信道，第二个码字根据根据所述第三空间相关参数接收第一信道；
或者，根据所述第一信令的天线端口字域所指示的DMRS所属的组的标识，确定所述目标空间相关参数为第二空间相关参数，
或第二空间相关参数和第三空间相关参数；其中，第一个码字根据所述第二空间相关参数接收第一信道，第二个码字根据根据所述第三空间相关参数接收第一信道。
可选的，所述空间相关参数为：传输配置指示TCI状态，或准共址QCL信息，或参考信号RS，其中所述RS用于指示所述第一信道QCL信息。
参见图10，在另一种实现方式中，当所述通信装置用于实现对应于网络设备(例如基站)的操作或功能时，还包括发送单元903用于发送第一信令，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数；所述发送单元903还用于通过所述第一空间相关参数中的一个或多个目标空间相关参数发送所述第一信道。
可选的，所述第一信令为DCI信令。
可选的，在本实施例的一种具体的实现中，发送单元903还用于发送第一信息，所述第一信息用于配置M个空间相关参数集合，M≥1，其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
可选的，所述第二信令为RRC信令，或RRC信令和MAC-CE信令。
可选的，在本实施例的又一种具体的实现中，发送单元903还用于发送第三信令，所述第三信令中包括第二信息，所述第二信息用于配置有关所述第一信息与所述一个或多个空间相关参数之间的对应关系。
可选的，所述第三信令为DCI信令。
可选的，所述第三信令包括所述第一字域。
可选的，所述第三信令包括传输块字域，所述传输块字域用于指示码字信息，例如码字个数。
可选的，所述第三信令包括天线端口字域，所述天线端口字域用于指示DMRS端口信息，例如DMRS端口号。
可以理解地，本申请实施例中通信装置的各个单元模块的功能或者实现方式可以进一步参考方法实施例中的相关描述，此处不再赘述。
参见图11，为本申请实施例提供的一种通信设备的结构示意图。该通信设备可以是前述实施例中的终端设备，或者是可以用于终端设备的部件(例如芯片)。该通信 设备可以实现前述实施例中的终端设备的功能或操作。
如图11所示，所述通信设备可以包括收发器1001、处理器1002；进一步，还可以包括存储器1003，所述存储器1003可以用于存储代码或者数据。所述收发器1001可以包括接收机1011、发射机1012与天线1013等部件(如图12所示)。所述通信设备还可以包括更多或更少的部件，或者组合某些部件，或者不同的部件布置，本申请对此不进行限定。
处理器1002为通信设备的控制中心，利用各种接口和线路连接整个通信设备的各个部分，通过运行或执行存储在存储器1003内的软件程序或模块，以及调用存储在存储器1003内的数据，以执行通信设备的各种功能或处理数据。
所述处理器1002可以由集成电路(integrated circuit，IC)组成，例如可以由单颗封装的IC所组成，也可以由连接多颗相同功能或不同功能的封装IC而组成。举例来说，处理器1002可以仅包括中央处理器(central processing unit，CPU)，也可以是GPU、数字信号处理器(digital signal processor，DSP)、及收发模块中的控制芯片(例如基带芯片)的组合。在本申请的各种实施方式中，CPU可以是单运算核心，也可以包括多运算核心。
收发器1001用于建立通信信道，使通信设备通过所述通信信道以连接至通信网络，从而实现通信设备与其他设备之间的通信传输。其中，所述收发器1001可以是完成收发功能的模块。例如，所述收发器1001可以包括无线局域网(wireless local area network，WLAN)模块、蓝牙模块、基带(base band)模块等通信模块，以及所述通信设备对应的射频(radio frequency，RF)电路，用于进行无线局域网络通信、蓝牙通信、红外线通信及/或蜂窝式通信***通信，例如宽带码分多重接入(wideband code division multiple access，WCDMA)及/或高速下行封包存取(high speed downlink packet access，HSDPA)。所述收发器1001用于控制通信设备中的各组件的通信，并且可以支持直接内存存取(direct memory access)。
在本申请的不同实施方式中，所述收发器1001中的各种收发模块一般以集成电路芯片(integrated circuit chip)的形式出现，并可进行选择性组合，而不必包括所有收发模块及对应的天线组。例如，所述收发器1001可以仅包括基带芯片、射频芯片以及相应的天线以在一个蜂窝通信***中提供通信功能。经由收发器建立的通信连接，例如无线局域网接入或WCDMA接入，所述通信装置可以连接至蜂窝网(cellular network)或因特网(internet)。
在本申请的一些可选实施方式中，所述收发器1001中的通信模块，例如基带模块可以集成到处理器中，典型的如高通(Qualcomm)公司提供的APQ+MDM系列平台。射频电路用于信息收发或通话过程中接收和发送信号。例如，将网络设备的下行信号接收后，给处理器处理；另外，将上行数据发送给网络设备。通常，所述射频电路包括用于执行这些功能的公知电路，包括但不限于天线***、射频收发机、一个或多个放大器、调谐器、一个或多个振荡器、数字信号处理器、编解码(codec)芯片组、用户身份模块(SIM)卡、存储器等等。此外，射频电路还可以通过无线通信与网络和其他设备通信。
在本申请实施例中，收发器1001可以用于实现前述实施例中信息传输方法的全部 或部分步骤。图10中的接收单元模块901和图10中的发送单元903所要实现的功能可以由所述通信设备的收发器1001实现，或者由处理器1002控制的收发器1001实现。
参见图11，为本申请通信设备一个实施例的结构示意图。该通信设备可以是网络设备，比如基站，或者可以用于网络设备的部件(例如芯片)。该通信装置可以实现前述实施例中的网络设备的功能或操作。
其中，所述通信设备可以由收发器1001、处理器1002、组成，进一步地，还可以包括存储器1003。所述存储器1003可以用于存储代码或者数据。
处理器1002可以利用各种接口和线路连接整个通信设备的各个部分，通过运行或执行存储在存储器内的软件程序或模块，以及调用存储在存储器1003内的代码或者数据，以执行通信设备的各种功能或处理数据。所述处理器1002可以是CPU，NP或者CPU和NP的组合。可选的，所述处理器1002还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic，GAL)或其任意组合。
存储器1003可以包括易失性存储器(volatile memory)，例如随机存取内存(random access memory，RAM)；还可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器1003还可以包括上述种类的存储器的组合。所述存储器中可以存储有程序或代码或者数据，通信设备中的处理器1002通过执行所述程序或代码可以实现所述通信装置的功能。
收发器1001可以用于接收或发送信令。例如，收发器1001可以在处理器1002的控制下向终端设备或其他通信装置发送信令或数据，或者接收终端设备或其他通信装置发送的信号或数据。
在本申请实施例中，处理器1002及收发器1001可以单独或相耦合以实现前述方法实施例中的通信方法中的全部或部分步骤。例如，当所述通信设备作为前述实施例中的网络设备基站时，处理器1002可以第一信令、第二信令和第三信令，以及通过收发器1001发送所述处理器1002生成的第一信令、第二信令和第三信令。
进一步地，图10中的发送单元903所要实现的功能可以由所述通信设备的收发器1001实现，或者由处理器1002控制的收发器1001实现，所述处理单元902所要实现的功能则可以由所述处理器1002实现。
一种可能的实现方式中，本申请实施例还提供一种计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时可包括本申请提供的信息传输方法的各实施例中的部分或全部步骤。
所述的存储介质可为磁碟、光盘、只读存储记忆体(read-only memory，ROM)或随机存储记忆体(random access memory，RAM)等。
此外，本申请实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得所述计算机执行上述各实施例所述的信息传输方法步骤。
可以理解地，在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于***及装置实施例而言，由于其基本相似于方法实施例，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
此外，在本申请的描述中，除非另有说明，“多个”是指两个或多于两个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”、“第三”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”、“第三”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”、“第三”等字样也并不限定一定不同。
以上所述的本申请实施方式并不构成对本申请保护范围的限定。

Claims (28)

  1. 一种信息传输方法，其特征在于，所述方法包括：
    接收第一信令，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数；
    获取所述第一空间相关参数中的一个或多个目标空间相关参数；
    根据所述一个或多个目标空间相关参数接收所述第一信道。
  2. 根据权利要求1所述的方法，其特征在于，所述接收第一信令之前，方法还包括：
    接收第二信令，所述第二信令用于配置M个空间相关参数集合，M≥1，
    其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
  3. 根据权利要求1或2所述的方法，其特征在于，获取所述第一空间相关参数中的一个或多个目标空间相关参数，包括：
    根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数；
    其中，所述第一信息为以下至少一项：
    所述第一信令中的至少一个第二字域；
    所述第一信令所在的控制资源集合的标识；
    所述第一信令所在的搜索空间集合的标识；
    所述第一字域的状态值；
    天线面板标识。
  4. 根据权利要求3所述的方法，其特征在于，所述第二字域为传输块字域或者天线端口字域。
  5. 根据权利要求3或4所述的方法，其特征在于，所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数，包括：
    根据第一信息和第二信息确定所述第一空间相关参数中的一个或多个目标空间相关参数；
    其中，所述第二信息通过第三信令承载获得，或者所述第二信息由协议预定义获得，所述第二信息用于配置有关所述第一信息与所述一个或多个目标空间相关参数之间的对应关系。
  6. 根据权利要求5所述的方法，其特征在于，有关所述第一信息与所述一个或多个目标空间相关参数之间的对应关系，包括以下任意一种：
    所述第一信令中的至少一个第二字域指示的解调参考信号DMRS端口标识，与一个或多个目标空间相关参数的对应关系；
    所述第一信令中的至少一个第二字域指示的DMRS端口所属的组的标识，与一个或多个目标空间相关参数的对应关系；
    所述第一信令中的至少一个第二字域指示的码字信息，与一个或多个目标空间相 关参数的对应关系；
    所述第一信令所在的控制资源集合的标识，与一个或多个目标空间相关参数的对应关系；
    所述第一信令所在的搜索空间集合的标识，与一个或多个目标空间相关参数的对应关系；
    天线面板标识与一个或多个目标空间相关参数的对应关系。
  7. 根据权利要求3至6中任一项所述的方法，其特征在于，所述M个空间相关参数集合中包括P个第二空间相关参数和Q个第三空间相关参数，
    所述P个第二空间相关参数与第一取值之间具有对应关系
    所述Q个第三空间相关参数与第二取值之间具有对应关系：
    其中所述第一取值和所述第二取值为以下任意一种：
    第二字域所指示的DMRS端口号、或DMRS端口所属的组的标识、或码字信息；
    控制资源集合的标识；
    搜索空间集合的标识；
    天线面板标识；
    第一字域的状态值。
  8. 根据权利要求7所述的方法，其特征在于，
    所述M个空间相关参数集合中的至少一个集合中包括所述P个第二空间相关参数；
    所述M个空间相关参数集合中的至少一个集合中包括所述Q个第三空间相关参数，
    或者，所述M个空间相关参数集合中的至少一个集合由所述P个第二空间相关参数和所述Q个第三空间相关参数组成。
  9. 根据权利要求3至8中任一项所述的方法，其特征在于，所述第一空间相关参数中包括第二空间相关参数和第三空间相关参数，所述第一信息中的值和/或第一信息指示的信息的值包括至少一种取值，
    所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参数，包括：
    在所述第一信息的值和/或第一信息指示的信息的值为第一取值的情况下，所述一个或多个目标空间相关参数为第二空间相关参数；和/或，
    在所述第一信息的值和/或第一信息指示的信息的值为第二取值的情况下，所述一个或多个目标空间相关参数为第三空间相关参数。
  10. 根据权利要求3至9中任一项所述的方法，其特征在于，所述方法还包括：
    在所述第一信息的值和/或第一信息指示的信息的值为所述第一取值和所述第二取值的情况下，所述一个或多个目标空间相关参数为所述第二空间相关参数和所述第三空间相关参数。
  11. 根据权利要求3至8中任一项所述的方法，其特征在于，所述第一空间参数中包括第二空间参数和第三空间相关参数，
    所述根据第一信息确定所述第一空间相关参数中的一个或多个目标空间相关参 数，包括：
    在所述第二字域指示的码字个数为1的情况下，所述目标空间相关参数为所述第二空间相关参数或者所述第一空间相关参数。
  12. 根据权利要求11所述的方法，其特征在于，在所述第二字域指示的码字个数为2的情况下，所述目标空间相关参数为所述第二空间相关参数和所述第三空间相关参数；
    或者，根据所述天线端口字域的取值，确定所述目标空间相关参数为第二空间相关参数，或第二空间相关参数和第三空间相关参数；
    或者，根据所述天线端口字域所指示的DMRS所属的组的标识，确定所述目标空间相关参数为第二空间相关参数，或第二空间相关参数和第三空间相关参数。
  13. 根据权利要求1至12中任一项所述的方法，其特征在于，所述空间相关参数为：传输配置指示TCI状态，或准共址QCL信息，或参考信号RS；
    其中所述RS用于指示所述第一信道QCL信息。
  14. 一种信息传输方法，其特征在于，所述方法包括：
    发送第一信令，所述第一信令包括第一字域，所述第一字域的状态值用于指示接收第一信道的第一空间相关参数，所述第一字域的状态值为所述第一字域所对应的多个候选状态值中的一个，所述多个候选状态值中的至少一个状态值对应两个或两个以上空间相关参数；
    根据所述第一空间相关参数中的一个或多个目标空间相关参数发送所述第一信道。
  15. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    发送第二信令，所述第二信令用于配置M个空间相关参数集合，M≥1，
    其中，所述M个空间相关参数集合中的第i个空间相关参数集合包括Li个空间相关参数，所述Li个空间相关参数中的每个空间相关参数与所述第一字域的候选状态值之间存在对应关系，1≤i≤M，Li≥2，且M、i、Li均为整数。
  16. 根据权利要求14或15所述的方法，其特征在于，所述方法还包括：通过第一信息指示所述一个或多个目标空间相关参数，
    所述第一信息为以下至少一项：
    所述第一信令中的至少一个第二字域；
    所述第一信令所在的控制资源集合的标识；
    所述第一信令所在的搜索空间集合的标识；
    所述第一字域的状态值；
    天线面板标识。
  17. 根据权利要求16所述的方法，其特征在于，所述第二字域为传输块字域或者天线端口字域。
  18. 根据权利要求14至17中任一项所述的方法，其特征在于，所述方法还包括：
    发送第三信令，所述第三信令中包括第二信息，所述第二信息用于配置有关所述第一信息与所述一个或多个目标空间相关参数之间的对应关系。
  19. 根据权利要求18所述的方法，其特征在于，有关所述第一信息与所述一个或 多个目标空间相关参数之间的对应关系，包括以下任意一种：
    所述第一信令中的至少一个第二字域指示的解调参考信号DMRS端口标识，与一个或多个目标空间相关参数的对应关系；
    所述第一信令中的至少一个第二字域指示的DMRS端口组的标识，与一个或多个目标空间相关参数的对应关系；
    所述第一信令中的至少一个第二字域指示的码字信息，与一个或多个目标空间相关参数的对应关系；
    所述第一信令所在的控制资源集合的标识，与一个或多个目标空间相关参数的对应关系；
    所述第一信令所在的搜索空间集合的标识，与一个或多个目标空间相关参数的对应关系；
    天线面板标识与一个或多个目标空间相关参数的对应关系。
  20. 根据权利要求15至19中任一项所述的方法，其特征在于，所述M个空间相关参数集合中包括P个第二空间相关参数和Q个第三个空间相关参数，
    所述P个第二空间相关参数与第一取值之间具有对应关系，
    所述Q个第三空间相关参数与第二取值之间具有对应关系；
    其中所述第一取值和所述第二取值为以下任意一种：
    第二字域所指示的DMRS端口标识、或DMRS端口所属的组的标识、或码字信息；
    控制资源集合的标识；
    搜索空间集合的标识；
    天线面板标识；
    所述第一字域的状态值。
  21. 根据权利要求20所述的方法，其特征在于，
    所述M个空间相关参数集合中的至少一个集合中包括所述P个第二空间相关参数，所述M个空间相关参数集合中的至少一个集合中包括所述Q个第三空间相关参数；
    或者，所述M个空间相关参数集合中的至少一个集合由所述P个第二空间相关参数和所述Q个第三空间相关参数组成。
  22. 根据权利要求15至21中任一项所述的方法，其特征在于，所述空间相关参数为：传输配置指示TCI状态，或准共址QCL信息，或参考信号RS；
    其中所述RS用于指示所述第一信道QCL信息。
  23. 一种通信装置，其特征在于，所述装置包括用于执行如权利要求1至13中的任一项所述方法的功能单元。
  24. 一种通信装置，其特征在于，所述装置包括用于执行如权利要求14至22中的任一项所述方法的功能单元。
  25. 一种通信设备，包括处理器，所述处理器与存储器耦合，其特征在于，
    所述存储器，用于存储指令；
    所述处理器，用于执行所述存储器中的指令，使得所述通信设备执行如权利要求1至13中任一项所述的信息传输方法。
  26. 一种通信设备，包括处理器，所述处理器与存储器耦合，其特征在于，
    所述存储器，用于存储指令；
    所述处理器，用于执行所述存储器中的指令，使得所述通信设备执行如权利要求14至22中任一项所述的信息传输方法。
  27. 一种计算机存储介质，其特征在于，包括计算机指令，当所述计算机指令在设备上运行时，使得所述设备执行如权利要求1至13中的任一项所述的信息传输方法。
  28. 一种计算机存储介质，其特征在于，包括计算机指令，当所述计算机指令在设备上运行时，使得所述设备执行如权利要求14至22中的任一项所述的信息传输方法。
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