WO2024082312A1 - 传输配置指示状态的确定方法、装置及存储介质 - Google Patents

传输配置指示状态的确定方法、装置及存储介质 Download PDF

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Publication number
WO2024082312A1
WO2024082312A1 PCT/CN2022/126843 CN2022126843W WO2024082312A1 WO 2024082312 A1 WO2024082312 A1 WO 2024082312A1 CN 2022126843 W CN2022126843 W CN 2022126843W WO 2024082312 A1 WO2024082312 A1 WO 2024082312A1
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Prior art keywords
tci state
search space
information
tci
terminal
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PCT/CN2022/126843
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English (en)
French (fr)
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李明菊
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北京小米移动软件有限公司
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Priority to CN202280004478.4A priority Critical patent/CN115997367A/zh
Priority to PCT/CN2022/126843 priority patent/WO2024082312A1/zh
Publication of WO2024082312A1 publication Critical patent/WO2024082312A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • 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

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method, device and storage medium for determining a Transmission Configuration Indicator (TCI) status.
  • TCI Transmission Configuration Indicator
  • New Radio for example, when the communication frequency band is in frequency range 2, since the high-frequency channel attenuates quickly, in order to ensure the coverage range, beam-based transmission and reception are required.
  • a unified transmission configuration indication state (unified Transmission Configuration Indicator, unified TCI state)
  • the unified TCI state can be a separate indication for uplink and downlink, or a joint indication for uplink and downlink.
  • the TCI state can be applicable to the terminal's physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and/or its corresponding DMRS, and at least a portion of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) and/or its corresponding DMRS, and at least a portion of the channel state information reference signal (Channel State Information-Reference Signal, CSI-RS).
  • PDSCH Physical Downlink shared channel
  • PDCCH Physical Downlink Control Channel
  • CSI-RS Channel State Information-Reference Signal
  • the TCI state can be applicable to the terminal's physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) and/or its corresponding DMRS, and at least a portion of the physical uplink control channel (Physical Uplink Control Channel, PUCCH) and/or its corresponding DMRS, and at least a portion of the sounding reference signal (SRS).
  • the joint TCI state can be applicable to both uplink and downlink channels and/or reference signals.
  • S-TRP single transmission and reception point
  • the present disclosure provides a method, device and storage medium for determining a transmission configuration indication state.
  • a method for determining a transmission configuration indication state is provided, which is applied to a terminal, and the method includes: receiving first information sent by a network device, and determining at least two search space sets with a link relationship based on the first information; receiving second information sent by the network device, and determining a mapping relationship between the at least two search space sets and a transmission configuration indication TCI state based on the second information.
  • the method also includes: receiving third information sent by the network device, wherein the third information is used to indicate at least one TCI state; based on the at least one TCI state, determining whether to monitor the physical downlink control channel PDCCH candidate resources of the at least two search space sets; and/or, based on the at least one TCI state, determining to monitor the PDCCH candidate resources of at least one first search space set among the at least two search space sets.
  • the TCI state indicated by the third information is a TCI state; determining whether to monitor the physical downlink control channel PDCCH candidate resources of the at least two search space sets based on the at least one TCI state includes: in response to the TCI state indicated by the third information being a TCI state, determining to stop monitoring the PDCCH candidate resources of the at least two search space sets.
  • determining to monitor PDCCH candidate resources of at least one first search space set among the at least two search space sets based on the at least one TCI state includes: monitoring PDCCH candidate resources of at least one first search space set among the at least two search space sets based on the mapping relationship and at least one TCI state indicated by the third information.
  • the TCI state indicated by the third information is multiple TCI states; monitoring the PDCCH candidate resources of at least one first search space set in the at least two search space sets based on the mapping relationship and the at least one TCI state indicated by the third information includes: based on the mapping relationship and the multiple TCI states, separately monitoring the PDCCH candidate resources of each search space set in the at least two search space sets.
  • the TCI state indicated by the third information is a TCI state; monitoring the PDCCH candidate resources of at least one first search space set in the at least two search space sets based on the mapping relationship and the at least one TCI state indicated by the third information includes: based on the mapping relationship and the one TCI state, monitoring the PDCCH candidate resources of the first search space set corresponding to the one TCI state in the at least two search space sets.
  • the TCI state indicated by the third information is a TCI state; monitoring the PDCCH candidate resources of at least one first search space set in the at least two search space sets based on the mapping relationship and at least one TCI state indicated by the third information includes: monitoring the PDCCH candidate resources of the at least two search space sets based on the one TCI state.
  • the TCI state indicated by the third information includes a first TCI state
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state in the second TCI state and the third TCI state currently being used by the terminal;
  • the monitoring, based on the mapping relationship and at least one TCI state indicated by the third information, of PDCCH candidate resources of at least one first search space set in the at least two search space sets includes:
  • the PDCCH candidate resources of the first search space set are monitored based on the first TCI state, and the PDCCH candidate resources of the second search space set are monitored based on the third TCI state.
  • the second information indicates a mapping relationship between the at least two search space sets and the transmission configuration indication TCI state in at least one of the following ways:
  • the second information includes at least one of the following:
  • Downlink control information DCI Downlink control information DCI.
  • the third information includes at least one of the following:
  • the MAC-CE is used to indicate at least one TCI state, and the at least one TCI state corresponds to a code point in the TCI state indication field carried in the DCI; or the MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among the multiple code points.
  • At least one TCI state indicated by the third information is used to determine a quasi-co-site QCL assumption of at least one of a physical downlink shared channel PDSCH, a PDCCH, a control resource set associated with the PDCCH, a demodulation reference signal DMRS of the PDSCH and/or PDCCH, and a non-zero power NZP channel state information reference signal CSI-RS; and/or,
  • the at least one TCI state indicated by the third information is used to determine a QCL assumption of at least one of a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a DMRS of PUCCH and/or PUSCH, and a sounding reference signal SRS.
  • the TCI state includes an uplink and downlink combined TCI state and/or a downlink TCI state.
  • a method for determining a transmission configuration indication state is provided, which is applied to a network device, and the method comprises: sending first information to a terminal, wherein the first information is used to instruct the terminal to determine at least two search space sets having a link relationship; and sending second information to the terminal, wherein the second information is used to instruct the terminal to determine a mapping relationship between the at least two search space sets and the transmission configuration indication TCI state.
  • the method also includes: sending third information to the terminal, the third information is used to indicate at least one TCI state, and the at least one TCI state is used to indicate whether the terminal monitors the physical downlink control channel PDCCH candidate resources of the at least two search space sets; and/or, the at least one TCI state is used to indicate the terminal to monitor the physical downlink control channel PDCCH candidate resources of at least one first search space set in the at least two search space sets.
  • the TCI state indicated by the third information is one TCI state, and the one TCI state is used to instruct the terminal to stop monitoring the PDCCH candidate resources of the at least two search space sets.
  • the TCI state indicated by the third information is a plurality of TCI states, and the plurality of TCI states are used to instruct the terminal to respectively monitor the PDCCH candidate resources of each search space set in the at least two search space sets.
  • the TCI state indicated by the third information is a TCI state
  • the one TCI state is used to instruct the terminal to monitor PDCCH candidate resources of a first search space set corresponding to the one TCI state in the at least two search space sets.
  • the TCI state indicated by the third information is one TCI state, and the one TCI state is used to instruct the terminal to monitor the PDCCH candidate resources of the at least two search space sets.
  • the TCI state indicated by the third information includes a first TCI state
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state and the second TCI state in the third TCI state currently being used by the terminal; the first TCI state is used to determine that the terminal monitors the PDCCH candidate resources of the first search space set corresponding to the first TCI state.
  • the second information indicates a mapping relationship between the at least two search space sets and the transmission configuration indication TCI state in at least one of the following ways:
  • the second information includes at least one of the following:
  • Downlink control information DCI Downlink control information DCI.
  • the third information includes at least one of the following:
  • the MAC-CE is used to indicate at least one TCI state, and the at least one TCI state corresponds to a code point in the TCI state indication field carried in the DCI; or the MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among the multiple code points.
  • At least one TCI state indicated by the third information is used to determine the quasi-co-site QCL assumption of at least one of the physical downlink shared channel PDSCH, PDCCH, the control resource set associated with the PDCCH, the demodulation reference signal DMRS of the PDSCH and/or PDCCH, and the non-zero power NZP channel state information reference signal CSI-RS; and/or, at least one TCI state indicated by the third information is used to determine the QCL assumption of at least one of the physical uplink control channel PUCCH, the physical uplink shared channel PUSCH, the DMRS of the PUCCH and/or PUSCH, and the sounding reference signal SRS.
  • the TCI state includes an uplink and downlink combined TCI state and/or a downlink TCI state.
  • a device for determining a transmission configuration indication state which is applied to a terminal, and the device includes:
  • a receiving module configured to receive first information sent by a network device, and determine at least two search space sets having a link relationship based on the first information
  • the receiving module is also used to receive second information sent by the network device, and determine the mapping relationship between the at least two search space sets and the transmission configuration indication TCI state based on the second information.
  • the receiving module is also used to receive third information sent by the network device, and the third information is used to indicate at least one TCI state; the processing module is used to determine whether to monitor the physical downlink control channel PDCCH candidate resources of the at least two search space sets based on the at least one TCI state; and/or, based on the at least one TCI state, determine to monitor the PDCCH candidate resources of at least one first search space set among the at least two search space sets.
  • the TCI state indicated by the third information is a TCI state; the processing module is used to determine to stop monitoring the PDCCH candidate resources of the at least two search space sets in response to the TCI state indicated by the third information being a TCI state.
  • the processing module is used to monitor the PDCCH candidate resources of at least one first search space set among the at least two search space sets based on the mapping relationship and at least one TCI state indicated by the third information.
  • the TCI state indicated by the third information is a plurality of TCI states; the processing module is used to monitor the PDCCH candidate resources of each search space set in the at least two search space sets respectively based on the mapping relationship and the plurality of TCI states.
  • the TCI state indicated by the third information is a TCI state; the processing module is used to monitor the PDCCH candidate resources of the first search space set corresponding to the one TCI state in the at least two search space sets based on the mapping relationship and the one TCI state.
  • the TCI state indicated by the third information is one TCI state; and the processing module is used to monitor the PDCCH candidate resources of the at least two search space sets based on the one TCI state.
  • the TCI state indicated by the third information includes a first TCI state
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state in the second TCI state and the third TCI state currently being used by the terminal;
  • the processing module is used to determine, based on the mapping relationship, a first search space set corresponding to the first TCI state and a second search space set corresponding to the third TCI state; monitor the PDCCH candidate resources of the first search space set based on the first TCI state, and monitor the PDCCH candidate resources of the second search space set based on the third TCI state.
  • the second information indicates a mapping relationship between the at least two search space sets and the transmission configuration indication TCI state in at least one of the following ways:
  • the second information includes at least one of the following:
  • Downlink control information DCI Downlink control information DCI.
  • the third information includes at least one of the following:
  • the MAC-CE is used to indicate at least one TCI state, and the at least one TCI state corresponds to a code point in the TCI state indication field carried in the DCI; or the MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among the multiple code points.
  • At least one TCI state indicated by the third information is used to determine a quasi-co-site QCL assumption of at least one of a physical downlink shared channel PDSCH, a PDCCH, a control resource set associated with the PDCCH, a demodulation reference signal DMRS of the PDSCH and/or PDCCH, and a non-zero power NZP channel state information reference signal CSI-RS; and/or,
  • the at least one TCI state indicated by the third information is used to determine a QCL assumption of at least one of a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a DMRS of PUCCH and/or PUSCH, and a sounding reference signal SRS.
  • the TCI state includes an uplink and downlink combined TCI state and/or a downlink TCI state.
  • a device for determining a transmission configuration indication state is provided, which is applied to a network device, and the device includes:
  • a sending module configured to send first information to a terminal, wherein the first information is used to enable the terminal to determine at least two search space sets having a link relationship;
  • the sending module is further used to send second information to the terminal, where the second information is used to enable the terminal to determine a mapping relationship between the at least two search space sets and the transmission configuration indication TCI state.
  • the sending module is used to send third information to the terminal, the third information is used to indicate at least one TCI state, and the at least one TCI state is used to indicate whether the terminal monitors the physical downlink control channel PDCCH candidate resources of the at least two search space sets; and/or, the at least one TCI state is used to indicate the terminal to monitor the physical downlink control channel PDCCH candidate resources of at least one first search space set in at least two search space sets.
  • the TCI state indicated by the third information is one TCI state, and the one TCI state is used to instruct the terminal to stop monitoring the PDCCH candidate resources of the at least two search space sets.
  • the TCI state indicated by the third information is a plurality of TCI states, and the plurality of TCI states are used to instruct the terminal to respectively monitor the PDCCH candidate resources of each search space set in the at least two search space sets.
  • the TCI state indicated by the third information is a TCI state
  • the one TCI state is used to instruct the terminal to monitor the PDCCH candidate resources of the first search space set corresponding to the one TCI state in the at least two search space sets.
  • the TCI state indicated by the third information is one TCI state, and the one TCI state is used to instruct the terminal to monitor the PDCCH candidate resources of the at least two search space sets.
  • the TCI state indicated by the third information includes a first TCI state
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state and the second TCI state in the third TCI state currently being used by the terminal; the first TCI state is used to determine that the terminal monitors the PDCCH candidate resources of the first search space set corresponding to the first TCI state.
  • the second information indicates a mapping relationship between the at least two search space sets and the transmission configuration indication TCI state in at least one of the following ways:
  • the second information includes at least one of the following:
  • Downlink control information DCI Downlink control information DCI.
  • the third information includes at least one of the following:
  • the MAC-CE is used to indicate at least one TCI state, and the at least one TCI state corresponds to a code point in the TCI state indication field carried in the DCI; or the MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among the multiple code points.
  • At least one TCI state indicated by the third information is used to determine the quasi-co-site QCL assumption of at least one of the physical downlink shared channel PDSCH, PDCCH, the control resource set associated with the PDCCH, the demodulation reference signal DMRS of the PDSCH and/or PDCCH, and the non-zero power NZP channel state information reference signal CSI-RS; and/or, at least one TCI state indicated by the third information is used to determine the QCL assumption of at least one of the physical uplink control channel PUCCH, the physical uplink shared channel PUSCH, the DMRS of the PUCCH and/or PUSCH, and the sounding reference signal SRS.
  • the TCI state includes an uplink and downlink combined TCI state and/or a downlink TCI state.
  • a device for determining a transmission configuration indication status comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to: execute the method described in the above-mentioned first aspect and any one of its embodiments.
  • a device for determining a transmission configuration indication status comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to: execute the method described in the above second aspect and any one of its embodiments.
  • a storage medium in which instructions are stored.
  • the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute the method described in the first aspect and any one of its embodiments.
  • a storage medium in which instructions are stored.
  • the instructions in the storage medium are executed by a processor of a network device, the network device is enabled to execute the method described in the above second aspect and any one of its embodiments.
  • a communication system including a terminal and a network device, wherein the first terminal device is used to execute the method described in the first aspect and any one of its embodiments; and the second terminal device is used to execute the method described in the second aspect and any one of its embodiments.
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: when the terminal is configured with at least two search space sets having a link relationship, the TCI states corresponding to the at least two search space sets are determined, so that the terminal and the network device use a consistent TCI state for transmission, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • Fig. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.
  • Fig. 2 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 3 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 5 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 6 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 7 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 8 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 9 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 10 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 11 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 12 is a flow chart showing a method for determining a TCI state according to an exemplary embodiment.
  • Fig. 13 is a block diagram showing a device for determining a TCI state according to an exemplary embodiment.
  • Fig. 14 is a block diagram showing a device for determining a TCI state according to an exemplary embodiment.
  • Fig. 15 is a block diagram showing a device for determining a TCI state according to an exemplary embodiment.
  • Fig. 16 is a block diagram showing a device for determining a TCI state according to an exemplary embodiment.
  • New Radio for example, when the communication frequency band is in frequency range 2, since the high-frequency channel attenuates quickly, in order to ensure the coverage range, beam-based transmission and reception are required.
  • a unified transmission configuration indication state (unified Transmission Configuration Indicator, unified TCI state)
  • the unified TCI state can be a separate indication for uplink and downlink, or a joint indication for uplink and downlink.
  • the TCI state can be applicable to the terminal's physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and/or its corresponding DMRS, and at least a portion of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) and/or its corresponding DMRS, and at least a portion of the channel state information reference signal (Channel State Information-Reference Signal, CSI-RS).
  • PDSCH Physical Downlink shared channel
  • PDCCH Physical Downlink Control Channel
  • CSI-RS Channel State Information-Reference Signal
  • the TCI state can be applicable to the terminal's physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) and/or its corresponding DMRS, and at least a portion of the physical uplink control channel (Physical Uplink Control Channel, PUCCH) and/or its corresponding DMRS, and at least a portion of the sounding reference signal (Sounding Reference Signal, SRS).
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • SRS Sounding Reference Signal
  • the joint TCI state can be applicable to both uplink and downlink channels and/or reference signals.
  • S-TRP single transmission and reception point
  • M-TRP multi-transmission reception point
  • the wireless communication system includes a network device and a terminal.
  • the terminal is connected to the network device through wireless resources and performs data transmission.
  • the wireless communication system shown in FIG1 is only for schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, which are not shown in FIG1.
  • the embodiments of the present disclosure do not limit the number of network devices and terminals included in the wireless communication system.
  • the wireless communication system of the embodiment of the present disclosure is a network that provides wireless communication functions.
  • the wireless communication system can adopt different communication technologies, such as code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division multiple access (time division multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (single carrier FDMA, SC-FDMA), carrier sense multiple access/collision avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • code division multiple access code division multiple access
  • CDMA code division multiple access
  • wideband code division multiple access wideband code division multiple access
  • WCDMA wideband code division multiple access
  • time division multiple access time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • single carrier frequency division multiple access single carrier frequency division multiple access
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called new wireless network (New Radio, NR).
  • 2G English: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called new wireless network (New Radio, NR).
  • NR New Radio
  • the present disclosure sometimes simply refers to a wireless communication network as a network.
  • the wireless access network equipment may also be referred to as a wireless access network equipment.
  • the wireless access network equipment may be: a base station, an evolved node B (base station), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a gNB in an NR system, or it may also be a component or a part of a base station. It should be understood that in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network equipment are not limited.
  • the network equipment may provide communication coverage for a specific geographical area, and may communicate with a terminal located in the coverage area (cell).
  • the network equipment may also be a vehicle-mounted device.
  • the terminal involved in the present disclosure may also be referred to as a terminal device, a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal, MT), etc., which is a device that provides voice and/or data connectivity to users.
  • the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, etc.
  • terminals are: a smart phone (Mobile Phone), a customer premises equipment (Customer Premise Equipment, CPE), a pocket computer (Pocket Personal Computer, PPC), a handheld computer, a personal digital assistant (Personal Digital Assistant, PDA), a laptop computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc.
  • the terminal device may also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • New Radio for example, when the communication frequency band is in frequency range 2, since the high-frequency channel attenuates quickly, in order to ensure the coverage range, beam-based transmission and reception are required.
  • the beams used by PDCCH and/or DMRS of PDCCH, PDSCH and/or DMRS of PDSCH, PUCCH and/or DMRS of PUCCH, PUSCH and/or DMRS of PUSCH, and/or reference signals are all independently indicated.
  • the reference signal may include CSI-RS, SRS, positioning reference signal (Positioning Reference Signal, PRS), phase reference signal (tracking reference signal, TRS), etc.
  • CSI-RS may include CSI-RS for channel state information measurement, CSI-RS for beam measurement, or CSI-RS for path loss estimation.
  • SRS may include SRS for codebook-based or non-codebook-based channel state information measurement, SRS for beam measurement, or SRS for positioning measurement.
  • PDCCH and/or DMRS of PDCCH, and PUCCH and/or DMRS of PUCCH activate a beam respectively through MAC CE, while PDSCH and/or DMRS of PDSCH, and PUSCH and/or DMRS of PUSCH indicate their corresponding beams respectively through DCI signaling.
  • the beam here can be indicated by TCI state or spatialrelationinfo (spatial relationship).
  • the TCI state corresponding to PDCCH includes the TCI state corresponding to PDCCH and/or its DMRS, that is, the TCI state is used for the reception of PDCCH and/or its DMRS.
  • the TCI state corresponding to PDSCH includes the TCI state corresponding to PDSCH and/or its DMRS, that is, the TCI state is used for the reception of PDSCH and/or its DMRS;
  • the TCI state or spatialrelationinfo corresponding to PUCCH includes the TCI state or spatialrelationinfo corresponding to PUCCH and/or its DMRS, that is, the TCI state or spatialrelationinfo is used for the transmission of PUCCH and/or its DMRS;
  • the TCI state or spatialrelationinfo corresponding to PUSCH includes the TCI state or spatialrelationinfo corresponding to PUSCH and/or its DMRS, that is, the TCI state or spatialrelationinfo is used for the transmission of PUSCH and/or its DMRS.
  • a unified transmission configuration indication state (unified Transmission Configuration Indicator, unified TCI state).
  • the unified TCI state can be a separate indication for uplink and downlink, or a joint indication for uplink and downlink.
  • the TCI state can be applicable to the terminal's physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and/or its DMRS, and at least a portion of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) and/or its DMRS, and at least a portion of the channel state information reference signal (Channel State Information-Reference Signal, CSI-RS).
  • PDSCH Physical Downlink Shared Channel
  • PDCCH Physical Downlink Control Channel
  • CSI-RS Channel State Information-Reference Signal
  • the TCI state can be applicable to the terminal's physical uplink shared channel (PUSCH) and/or its DMRS, and at least a portion of the physical uplink control channel (PUCCH) and/or its DMRS, and at least a portion of the sounding reference signal (SRS).
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • SRS sounding reference signal
  • the joint TCI state can be applicable to both uplink and downlink channels/reference signals.
  • S-TRP single transmission and reception point
  • M-TRP multiple transmission and reception points
  • one MAC CE or DCI signaling can indicate multiple TCI states.
  • the two search space sets can each use one TCI state.
  • how to monitor the PDCCH candidate sets in the two search space sets configured with a link relationship is a problem that needs to be solved.
  • an embodiment of the present disclosure provides a method for determining the TCI state.
  • the terminal is configured with at least two search space sets having a link relationship
  • the TCI state corresponding to each of the at least two search space sets is determined, so that the terminal and the network device use a consistent TCI state, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • the TCI states involved in the embodiments of the present disclosure refer to unified TCI states.
  • FIG. 2 is a flow chart of a method for determining a TCI state according to an exemplary embodiment. As shown in FIG. 2 , the method for determining a TCI state is applied in a terminal and includes the following steps.
  • step S11 first information sent by a network device is received, and at least two search space sets having a link relationship are determined based on the first information.
  • step S12 second information sent by the network device is received, and a mapping relationship between at least two search space sets and TCI states is determined based on the second information.
  • the TCI states corresponding to the at least two search space sets are determined so that the terminal and the network device use a consistent TCI state, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • two PDCCH candidate resources with the same PDCCH candidate resource number are used to send the same DCI. That is, the two PDCCH candidate resources are used for repeated transmission of the PDCCH.
  • the two search space sets have the same period and slot offset values, the same number of PDCCH occupancy, the same search space type, and the same DCI format.
  • a first search space set and a second search space set having a link relationship are determined based on first information, and based on second information, it is determined that the first search space set corresponds to a first TCI state and the second search space set corresponds to a second TCI state, thereby maintaining consistency in the TCI state adopted when transmitting PDCCH between the terminal and the network device, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • FIG. 3 is a flow chart of a method for determining a TCI state according to an exemplary embodiment. As shown in FIG. 3 , the method includes the following steps.
  • step S21 third information sent by the network device is received, where the third information is used to indicate at least one TCI state.
  • step S22 based on at least one TCI state, it is determined whether to monitor PDCCH candidate resources of at least two search space sets.
  • the TCI state corresponding to each of the at least two search space sets is determined, and based on the TCI state indicated by the third information sent by the network device, it is determined whether to monitor the physical downlink control channel PDCCH candidate resources of the at least two search space sets, so that the terminal and the network device unify whether to monitor the search space set, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • the TCI state corresponding to each of the at least two search space sets can be determined in any manner.
  • the TCI state corresponding to each of the at least two search space sets can be determined in the manner of step S11-step S12; then the mapping relationship between the at least two search space sets and the TCI state indicated by the second information indicates the mapping relationship between the TCI state indicated by the third information.
  • step S22 whether to monitor PDCCH candidate resources of at least two search space sets can be determined based on at least one TCI state.
  • a method for determining a TCI state provided in an embodiment of the present disclosure, based on at least one TCI state indicated by the third information, it is determined that the PDCCH candidate resources of at least two search space sets are monitored, and then it is further determined which search space set PDCCH candidate resources are monitored based on at least one TCI state.
  • FIG. 4 is a flow chart of a method for determining a TCI state according to an exemplary embodiment. As shown in FIG. 4 , the method includes the following steps.
  • step S31 third information sent by a network device is received, where the third information is used to indicate at least one TCI state.
  • step S32 based on at least one TCI state, it is determined whether to monitor PDCCH candidate resources of at least two search space sets.
  • step S33 if it is determined to monitor PDCCH candidate resources of at least two search space sets, it is determined to monitor PDCCH candidate resources of at least one first search space set among the at least two search space sets based on at least one TCI state.
  • the TCI state corresponding to each of the at least two search space sets is determined, and based on the TCI state indicated by the third information sent by the network device, it is determined whether to monitor the PDCCH candidate resources of the at least two search space sets, and when determining to monitor the PDCCH candidate resources of the at least two search space sets, it is further determined to monitor the PDCCH candidate resources of at least one first search space set in the at least two search space sets based on at least one TCI state indicated by the third information.
  • the terminal and the network device use the same TCI state for transmission, thereby improving the signal quality of the M-TRP transmission based on the TCI state.
  • the following describes how to determine whether to monitor physical downlink control channel PDCCH candidate resources of at least two search space sets based on at least one TCI state indicated by the third information.
  • FIG5 is a flowchart of a method for determining a TCI state according to an exemplary embodiment, comprising the following steps:
  • step S41 third information sent by the network device is received, where the third information is used to indicate a TCI state.
  • step S42 based on a TCI state, it is determined to stop monitoring PDCCH candidate resources of at least two search space sets.
  • the TCI state corresponding to each of the at least two search space sets is determined, and based on the TCI state indicated by the third information sent by the network device, it is determined to stop monitoring the physical downlink control channel PDCCH candidate resources of the at least two search space sets, so that the terminal and the network device can uniformly determine to give up receiving the DCI transmitted this time, thereby improving the signal quality of the M-TRP transmission based on the TCI state.
  • the terminal stops monitoring PDCCH candidate resources of at least two search space sets, then the control channel elements (CCE) corresponding to the PDCCH candidate resources of the at least two search space sets are not counted into the number of CCEs monitored by the terminal, or the number of CCEs corresponding to the PDCCH candidate resources of at least two search space sets is counted as 0.
  • CCE control channel elements
  • the terminal stops monitoring the PDCCH candidate resources of at least two search space sets, then the number of blind detections corresponding to the PDCCH candidate resources of the at least two search space sets is not counted in the number of blind detections of the terminal, or the number of blind detections corresponding to the PDCCH candidate resources of the at least two search space sets is 0.
  • FIG6 is a flowchart of a method for determining a TCI state according to an exemplary embodiment, comprising the following steps.
  • step S51 third information sent by a network device is received, where the third information is used to indicate at least one TCI state.
  • step S52 based on the mapping relationship and at least one TCI state indicated by the third information, PDCCH candidate resources of at least one first search space set in at least two search space sets are monitored.
  • the terminal when the terminal is configured with at least two search space sets having a link relationship, the TCI state corresponding to each of the at least two search space sets is determined, and based on the mapping relationship and the TCI state indicated by the third information sent by the network device, the PDCCH candidate resources for monitoring at least one first search space set in the at least two search space sets are determined, so that the terminal and the network device use the same TCI state for transmission, and the terminal and the network device can determine which search space set to monitor, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • the following describes how to monitor PDCCH candidate resources of at least one first search space set in at least two search space sets based on the mapping relationship and at least one TCI state indicated by the third information.
  • FIG. 7 is a flow chart of a method for determining a TCI state according to an exemplary embodiment, comprising the following steps.
  • step S61 third information sent by the network device is received, where the third information is used to indicate multiple TCI states.
  • step S62 based on the mapping relationship and the multiple TCI states indicated by the third information, PDCCH candidate resources of each search space set in at least two search space sets are monitored respectively.
  • An exemplary implementation is to determine a first search space set and a second search space set having a link relationship based on the first information, and determine that the first search space set corresponds to a first TCI state and the second search space corresponds to a second TCI state based on the second information. If the multiple TCI states indicated by the third information include a first TCI state and a second TCI state, the PDCCH candidate resources of the first search space set are monitored based on the first TCI state, and the PDCCH candidate resources of the second search space set are monitored based on the second TCI state.
  • the terminal monitors PDCCH candidate resources of two search space sets, and then the CCEs corresponding to the physical downlink control channel PDCCH candidate resources of the two search space sets are calculated into the number of CCEs monitored by the terminal.
  • the terminal monitors the PDCCH candidate resources of two search space sets, and the blind detection times corresponding to the PDCCH candidate resources of the two search space sets are calculated in the blind detection times of the terminal.
  • the blind detection times corresponding to the PDCCH candidate resources of the two search space sets may be 2 or 3.
  • mapping relationship involved in step S62 refers to the mapping relationship between at least two search space sets and the TCI state.
  • mapping relationship involved in any of the following embodiments refers to the mapping relationship between at least two search space sets and the TCI state.
  • FIG8 is a flow chart of a method for determining a TCI state according to an exemplary embodiment, comprising the following steps.
  • step S71 third information sent by the network device is received, where the third information is used to indicate a TCI state.
  • step S72 based on the mapping relationship and a TCI state, PDCCH candidate resources of a first search space set corresponding to a TCI state in at least two search space sets are monitored.
  • An exemplary implementation is to determine a first search space set and a second search space set having a link relationship based on the first information, and determine that the first search space set corresponds to a first TCI state and the second search space corresponds to a second TCI state based on the second information. If a TCI state indicated by the third information is the first TCI state, the PDCCH candidate resources of the first search space set are monitored based on the first TCI state, and the PDCCH search resources of the second search space set are stopped from being monitored.
  • the terminal monitors the PDCCH candidate resources of the first search space set, and the CCEs corresponding to the PDCCH candidate resources of the first search space set need to be calculated to the number of CCEs monitored by the terminal.
  • the CCEs corresponding to the PDCCH candidate resources of the second search space set are not counted into the number of CCEs monitored by the terminal, or the number of CCEs corresponding to the PDCCH candidate resources of the second search space set is counted to 0.
  • the terminal monitors the PDCCH candidate resources of the first search space set, and the number of blind detections corresponding to the PDCCH candidate resources of the first search space set needs to be calculated to the number of CCEs monitored by the terminal.
  • the number of blind detections corresponding to the PDCCH candidate resources of the first search space set can be 1, 2, or 3.
  • the number of blind detections corresponding to the PDCCH candidate resources of the second search space set is not counted in the number of blind detections of the terminal, or the number of blind detections corresponding to the PDCCH candidate resources of the second search space set is 0.
  • FIG9 is a flowchart of a method for determining a TCI state according to an exemplary embodiment, comprising the following steps.
  • step S81 third information sent by the network device is received, where the third information is used to indicate a TCI state.
  • step S82 based on a TCI state, PDCCH candidate resources of at least two search space sets are monitored.
  • An exemplary implementation is to determine a first search space set and a second search space set having a link relationship based on the first information, and determine that the first search space set corresponds to a first TCI state and the second search space corresponds to a second TCI state based on the second information. If a TCI state indicated by the third information is the first TCI state, the PDCCH candidate resources of the first search space set and the PDCCH candidate resources of the second search space resource set are simultaneously monitored based on the first TCI state.
  • the terminal monitors PDCCH candidate resources of two search space sets, and then the CCEs corresponding to the physical downlink control channel PDCCH candidate resources of the two search space sets are calculated into the number of CCEs monitored by the terminal.
  • the terminal monitors the PDCCH candidate resources of two search space sets, and the blind detection times corresponding to the PDCCH candidate resources of the two search space sets are calculated in the blind detection times of the terminal.
  • the blind detection times corresponding to the PDCCH candidate resources of the two search space sets may be 2 or 3.
  • FIG. 10 is a flowchart of a method for determining a TCI state according to an exemplary embodiment, comprising the following steps.
  • step S91 the third information sent by the network device is received, and the third information is used to indicate the first TCI state.
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state currently being used by the terminal and the second TCI state in the third TCI state.
  • step S92 based on the mapping relationship, a first search space set corresponding to the first TCI state and a second search space set corresponding to the third TCI state are determined.
  • step S93 PDCCH candidate resources of the first search space set are monitored based on the first TCI state, and PDCCH candidate resources of the second search space set are monitored based on the third TCI state.
  • the terminal monitors PDCCH candidate resources of two search space sets, and then the CCEs corresponding to the physical downlink control channel PDCCH candidate resources of the two search space sets are calculated into the number of CCEs monitored by the terminal.
  • the terminal monitors the PDCCH candidate resources of two search space sets, and the blind detection times corresponding to the PDCCH candidate resources of the two search space sets are calculated in the blind detection times of the terminal.
  • the blind detection times corresponding to the PDCCH candidate resources of the two search space sets may be 2 or 3.
  • the first TCI state indicated by the third information may include one or more TCI states
  • the first search space set corresponding to the first TCI state also includes the first search space sets corresponding to one or more TCI states, and the TCI state currently being used by the terminal does not only include the second TCI state and the third TCI state.
  • the first TCI state indicated by the third information is used to monitor the first search space set that is the same as the search space set corresponding to the TCI state currently being used by the terminal, and other search space sets are still monitored according to the TCI state currently being used by the terminal.
  • the second information indicates a mapping relationship between at least two search space sets and the TCI state in at least one of the following ways:
  • C Indicate one or more TCI states corresponding to the control resource set group or control resource set pool index to which the control resource sets associated with at least two search space sets respectively belong.
  • One implementation method of a TCI state determination method is to configure the control resource sets and/or the control resource set group or control resource set pool index to which the at least two search space sets are respectively associated based on other network signaling or indication information, and then indicate one or more TCI states corresponding to the control resource sets respectively associated with the at least two search space sets or one or more TCI states corresponding to the control resource set group or control resource set pool index to which the control resource sets respectively associated with the at least two search space sets belong, then, based on the control resource sets respectively associated with the at least two search space sets, determine the one or more TCI states corresponding to the at least two search space sets.
  • the second information includes at least one of the following:
  • Downlink control information DCI Downlink control information DCI.
  • the third information includes at least one of the following:
  • the third information includes MAC-CE, or MAC-CE+DCI.
  • MAC-CE is used to indicate at least one TCI state, and at least one TCI state corresponds to a code point in a TCI state indication field carried in the DCI; or, MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among multiple code points.
  • At least one TCI state indicated by the third information is used to determine a quasi-co-site QCL assumption of at least one of PDSCH, PDCCH, a control resource set associated with the PDCCH, a demodulation reference signal DMRS and a non-zero power NZP CSI-RS of the PDSCH and/or PDCCH; and/or, at least one TCI state indicated by the third information is used to determine a QCL assumption of at least one of PUCCH, PUSCH, DMRS and SRS of PUCCH and/or PUSCH.
  • the TCI state includes an uplink and downlink combined TCI state, and/or a downlink TCI state.
  • the present disclosure also provides a method for determining the TCI status of a network device.
  • FIG. 11 is a flowchart of a method for determining a TCI state according to an exemplary embodiment. As shown in FIG. 11 , the method for determining a TCI state is used in a network device and includes the following steps.
  • step S1001 first information is sent to a terminal, where the first information is used to indicate that the terminal has at least two search space sets with a link relationship.
  • step S1002 second information is sent to the terminal, where the second information is used to indicate a mapping relationship between at least two search space sets of the terminal and the TCI state.
  • the TCI states corresponding to the at least two search space sets are determined so that the terminal and the network device use the same TCI state, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • FIG. 12 is a flow chart of a method for determining a TCI state according to an exemplary embodiment. As shown in FIG. 12 , the method includes the following steps.
  • step S1101 third information is sent to the terminal, where the third information is used to indicate at least one TCI state.
  • At least one TCI state is used to indicate whether the terminal monitors PDCCH candidate resources of at least two search space sets; and/or, at least one TCI state is used to indicate that the terminal monitors PDCCH candidate resources of at least one first search space set in at least two search space sets.
  • the TCI state corresponding to each of the at least two search space sets can be determined in any manner.
  • the terminal can determine the TCI state corresponding to each of the at least two search space sets by the manner of steps S1001-step S1002; then the mapping relationship between the at least two search space sets and the TCI state indicated by the second information indicates the mapping relationship between the TCI state indicated by the third information.
  • step S1101 can be implemented alone or in conjunction with any embodiment of the present disclosure, and will not be described in detail here.
  • a network device sends a third information to a terminal, and the third information is used to indicate at least one TCI state, and at least one TCI state is used to indicate whether the terminal monitors at least two search space sets of PDCCH candidate resources; and/or, at least one TCI state is used to indicate that the terminal monitors at least one first search space set of PDCCH candidate resources in at least two search space sets.
  • the terminal determines whether to monitor the PDCCH candidate resources of at least two search space sets based on at least one TCI state indicated by the third information; and/or determines which search space set of the at least two search space sets to monitor the PDCCH candidate resources.
  • the terminal and the network device unify whether to monitor the search space set and which search space set to monitor, thereby improving the signal quality of M-TRP transmission based on the TCI state.
  • the terminal can determine whether to monitor the PDCCH candidate resources of at least two search space sets based on at least one TCI state.
  • There are many ways to determine whether to monitor the PDCCH candidate resources of at least two search space sets through at least one TCI state and these ways are respectively described through the following multiple schemes in the embodiment of the present disclosure. It should be noted that the multiple schemes in the embodiments of the present disclosure can be implemented independently, or any one of the embodiments can be implemented in combination with other embodiments.
  • the TCI state indicated by the third information is a TCI state
  • a TCI state is used to instruct the terminal to stop monitoring PDCCH candidate resources of at least two search space sets.
  • the terminal stops monitoring PDCCH candidate resources of at least two search space sets, then the control channel elements (CCE) corresponding to the PDCCH candidate resources of the at least two search space sets are not counted into the number of CCEs monitored by the terminal, or the number of CCEs corresponding to the PDCCH candidate resources of at least two search space sets is counted as 0.
  • CCE control channel elements
  • the terminal stops monitoring the PDCCH candidate resources of at least two search space sets, then the number of blind detections corresponding to the PDCCH candidate resources of the at least two search space sets is not counted in the number of blind detections of the terminal, or the number of blind detections corresponding to the PDCCH candidate resources of the at least two search space sets is 0.
  • a TCI state indicated by the third information sent by the network device to the terminal enables the terminal to determine to stop monitoring the physical downlink control channel PDCCH candidate resources of at least two search space sets, so that the terminal and the network device can uniformly determine to give up receiving the DCI transmitted this time, thereby improving the signal quality of the M-TRP transmission based on the TCI state.
  • the TCI state indicated by the third information is a plurality of TCI states, and the plurality of TCI states are used to indicate that the terminal monitors the PDCCH candidate resources of each search space set in at least two search space sets respectively.
  • An exemplary implementation is that if the multiple TCI states indicated by the third information include a first TCI state and a second TCI state, the terminal can determine based on the second information that the first search space set corresponds to the first TCI state and the second search space corresponds to the second TCI state, then the terminal can monitor the PDCCH candidate resources of the first search space set based on the first TCI state, and monitor the PDCCH candidate resources of the second search space set based on the second TCI state. This allows the terminal and the network device to use the same TCI state for transmission, thereby improving the signal quality of the M-TRP transmission based on the TCI state.
  • the terminal monitors PDCCH candidate resources of two search space sets, and then the CCEs corresponding to the physical downlink control channel PDCCH candidate resources of the two search space sets are calculated into the number of CCEs monitored by the terminal.
  • the terminal monitors the PDCCH candidate resources of two search space sets, and the blind detection times corresponding to the PDCCH candidate resources of the two search space sets are calculated in the blind detection times of the terminal.
  • the blind detection times corresponding to the PDCCH candidate resources of the two search space sets may be 2 or 3.
  • the TCI state indicated by the third information is a TCI state
  • a TCI state is used to indicate that the terminal monitors the PDCCH candidate resources of a first search space set corresponding to a TCI state in at least two search space sets.
  • the terminal determines, based on the second information, that the first search space set corresponds to a first TCI state, and that the second search space corresponds to a second TCI state.
  • a TCI state indicated by the third information sent by the network device is a first TCI state
  • the terminal monitors the PDCCH candidate resources of the first search space set based on the first TCI state, and stops monitoring the PDCCH search resources of the second search space set.
  • the terminal monitors the PDCCH candidate resources of the first search space set, and the CCEs corresponding to the PDCCH candidate resources of the first search space set need to be calculated to the number of CCEs monitored by the terminal.
  • the CCEs corresponding to the PDCCH candidate resources of the second search space set are not counted into the number of CCEs monitored by the terminal, or the number of CCEs corresponding to the PDCCH candidate resources of the second search space set is counted to 0.
  • the terminal monitors the PDCCH candidate resources of the first search space set, and the number of blind detections corresponding to the PDCCH candidate resources of the first search space set needs to be calculated to the number of CCEs monitored by the terminal.
  • the number of blind detections corresponding to the PDCCH candidate resources of the first search space set can be 1, 2, or 3.
  • the number of blind detections corresponding to the PDCCH candidate resources of the second search space set is not counted in the number of blind detections of the terminal, or the number of blind detections corresponding to the PDCCH candidate resources of the second search space set is 0.
  • the TCI state indicated by the third information is a TCI state
  • one TCI state is used to indicate that the terminal monitors PDCCH candidate resources of at least two search space sets.
  • An exemplary implementation is that the terminal determines that the first search space set corresponds to the first TCI state and the second search space corresponds to the second TCI state based on the second information. If a TCI state indicated by the third information sent by the network device is the first TCI state, the terminal simultaneously monitors the PDCCH candidate resources of the first search space set and the PDCCH candidate resources of the second search space resource set based on the first TCI state.
  • the terminal monitors PDCCH candidate resources of two search space sets, and then the CCEs corresponding to the physical downlink control channel PDCCH candidate resources of the two search space sets are calculated into the number of CCEs monitored by the terminal.
  • the terminal monitors the PDCCH candidate resources of two search space sets, and the blind detection times corresponding to the PDCCH candidate resources of the two search space sets are calculated in the blind detection times of the terminal.
  • the blind detection times corresponding to the PDCCH candidate resources of the two search space sets may be 2 or 3.
  • the TCI state indicated by the third information includes a first TCI state
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state currently being used by the terminal and the second TCI state in the third TCI state
  • the first TCI state is used to determine the PDCCH candidate resources of the first search space set corresponding to the first TCI state monitored by the terminal.
  • the terminal determines the first search space set corresponding to the first TCI state and the second search space set corresponding to the third TCI state based on the second information, and monitors the PDCCH candidate resources of the first search space set corresponding to the first TCI state based on the first TCI state, and monitors the PDCCH candidate resources of the second search space set based on the third TCI state.
  • the terminal monitors PDCCH candidate resources of two search space sets, and then the CCEs corresponding to the physical downlink control channel PDCCH candidate resources of the two search space sets are calculated into the number of CCEs monitored by the terminal.
  • the terminal monitors the PDCCH candidate resources of two search space sets, and the number of blind detections corresponding to the PDCCH candidate resources of the two search space sets is calculated in the number of blind detections of the terminal.
  • the number of blind detections corresponding to the PDCCH candidate resources of the two search space sets may be 2 or 3.
  • the first TCI state indicated by the third information may include one or more TCI states
  • the first search space set corresponding to the first TCI state also includes the first search space sets corresponding to one or more TCI states, and the TCI state currently being used by the terminal does not only include the second TCI state and the third TCI state.
  • the first TCI state indicated by the third information is used to monitor the first search space set that is the same as the search space set corresponding to the TCI state currently being used by the terminal, and other search space sets are still monitored according to the TCI state currently being used by the terminal.
  • the second information indicates a mapping relationship between the at least two search space sets and the transmission configuration indication TCI state in at least one of the following ways:
  • C Indicate one or more TCI states corresponding to the control resource set group or control resource set pool index to which the control resource sets associated with at least two search space sets respectively belong.
  • One implementation method of a TCI state determination method provided in an embodiment of the present disclosure is that the network device can also configure the control resource sets associated with at least two search space sets and/or the control resource set group or control resource set pool index to which the control resource sets belong based on other network signaling or indication information, and then indicate one or more TCI states corresponding to the control resource sets associated with at least two search space sets or one or more TCI states corresponding to the control resource set group or control resource set pool index to which the control resource sets associated with at least two search space sets belong, so that the terminal determines the one or more TCI states corresponding to the at least two search space sets based on the control resource sets associated with the at least two search space sets.
  • the second information includes at least one of the following:
  • Downlink control information DCI Downlink control information DCI.
  • the third information includes at least one of the following:
  • the third information includes MAC-CE, or MAC-CE+DCI.
  • MAC-CE is used to indicate at least one TCI state, and at least one TCI state corresponds to a code point in a TCI state indication field carried in the DCI; or, MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among multiple code points.
  • At least one TCI state indicated by the third information is used to determine a quasi-co-site QCL assumption of at least one of PDSCH, PDCCH, a control resource set associated with the PDCCH, a demodulation reference signal DMRS and a non-zero power NZP CSI-RS of the PDSCH and/or PDCCH; and/or, at least one TCI state indicated by the third information is used to determine a QCL assumption of at least one of the DMRS and SRS of the PUCCH, PUSCH, PUCCH and/or PUSCH.
  • the TCI state includes an uplink and downlink combined TCI state, and/or a downlink TCI state.
  • an embodiment of the present disclosure also provides a device for determining a TCI state.
  • the TCI state determination device includes hardware structures and/or software modules corresponding to the execution of each function in order to realize the above functions.
  • the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present disclosure.
  • Fig. 13 is a block diagram of a device for determining a TCI state according to an exemplary embodiment.
  • the device includes a receiving module 101.
  • the device 100 for determining a TCI state is applied in a terminal.
  • the receiving module 101 is configured to receive first information sent by a network device, and determine at least two search space sets having a link relationship based on the first information;
  • the receiving module 101 is also used to receive second information sent by the network device, and determine a mapping relationship between at least two search space sets and a transmission configuration indication TCI state based on the second information.
  • the TCI status determination device 100 further includes a processing module 102 .
  • the receiving module 101 is also used to receive third information sent by the network device, and the third information is used to indicate at least one TCI state; the processing module 102 is used to determine whether to monitor PDCCH candidate resources of at least two search space sets based on at least one TCI state; and/or, based on at least one TCI state, determine to monitor PDCCH candidate resources of at least one first search space set in at least two search space sets.
  • the TCI state indicated by the third information is a TCI state; the processing module 102 is used to determine to stop monitoring PDCCH candidate resources of at least two search space sets in response to the TCI state indicated by the third information being a TCI state.
  • the processing module 102 is configured to monitor PDCCH candidate resources of at least one first search space set in at least two search space sets based on a mapping relationship and at least one TCI state indicated by third information.
  • the TCI state indicated by the third information is a plurality of TCI states; the processing module 102 is configured to monitor the PDCCH candidate resources of each search space set in at least two search space sets respectively based on the mapping relationship and the plurality of TCI states.
  • the TCI state indicated by the third information is a TCI state; the processing module 102 is used to monitor the PDCCH candidate resources of the first search space set corresponding to a TCI state in at least two search space sets based on a mapping relationship and a TCI state.
  • the TCI state indicated by the third information is one TCI state; the processing module 102 is configured to monitor PDCCH candidate resources of at least two search space sets based on one TCI state.
  • the TCI state indicated by the third information includes a first TCI state
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state in the second TCI state and the third TCI state currently being used by the terminal;
  • Processing module 102 is used to determine a first search space set corresponding to a first TCI state and a second search space set corresponding to a third TCI state based on a mapping relationship; monitor the PDCCH candidate resources of the first search space set based on the first TCI state, and monitor the PDCCH candidate resources of the second search space set based on the third TCI state.
  • the second information indicates a mapping relationship between at least two search space sets and a transmission configuration indication TCI state in at least one of the following ways:
  • TCI states Indicates one or more TCI states corresponding to the control resource set group or control resource set pool index to which the control resource sets associated with at least two search space sets respectively belong.
  • the second information includes at least one of the following:
  • the third information includes at least one of the following:
  • MAC-CE is used to indicate at least one TCI state, and at least one TCI state corresponds to a code point in the TCI state indication field carried in the DCI; or MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among multiple code points.
  • At least one TCI state indicated by the third information is used to determine the QCL assumption of at least one of the PDSCH, the PDCCH, the control resource set associated with the PDCCH, the demodulation reference signal DMRS of the PDSCH and/or the PDCCH and the non-zero power NZP CSI-RS; and/or,
  • the at least one TCI state indicated by the third information is used to determine the QCL assumption of at least one of the DMRS and SRS of PUCCH, PUSCH, PUCCH and/or PUSCH.
  • the TCI state includes an uplink and downlink combined TCI state and/or a downlink TCI state.
  • Fig. 14 is a block diagram of a device for determining a TCI state according to an exemplary embodiment.
  • the device includes a sending module 201.
  • the device 200 for determining a TCI state is applied to a network device.
  • a sending module 201 configured to send first information to a terminal, where the first information is used to enable the terminal to determine at least two search space sets having a link relationship;
  • the sending module 201 is further used to send second information to the terminal, where the second information is used to enable the terminal to determine a mapping relationship between at least two search space sets and the TCI state.
  • the sending module 201 is used to send third information to the terminal, the third information is used to indicate at least one TCI state, and the at least one TCI state is used to indicate whether the terminal monitors PDCCH candidate resources of at least two search space sets; and/or, at least one TCI state is used to indicate the terminal to monitor PDCCH candidate resources of at least one first search space set in at least two search space sets.
  • the TCI state indicated by the third information is one TCI state, and one TCI state is used to instruct the terminal to stop monitoring PDCCH candidate resources of at least two search space sets.
  • the TCI state indicated by the third information is a plurality of TCI states, and the plurality of TCI states are used to instruct the terminal to respectively monitor PDCCH candidate resources of each search space set in at least two search space sets.
  • the TCI state indicated by the third information is a TCI state
  • the TCI state is used to instruct the terminal to monitor PDCCH candidate resources of a first search space set corresponding to the one TCI state in at least two search space sets.
  • the TCI state indicated by the third information is one TCI state, and one TCI state is used to instruct the terminal to monitor PDCCH candidate resources of at least two search space sets.
  • the TCI state indicated by the third information includes a first TCI state
  • the search space set corresponding to the first TCI state is the same as the search space set corresponding to the second TCI state currently being used by the terminal and the second TCI state in the third TCI state; the first TCI state is used to determine that the terminal monitors the PDCCH candidate resources of the first search space set corresponding to the first TCI state.
  • the second information indicates a mapping relationship between at least two search space sets and TCI states in at least one of the following ways:
  • TCI states Indicates one or more TCI states corresponding to the control resource set group or control resource set pool index to which the control resource sets associated with at least two search space sets respectively belong.
  • the second information includes at least one of the following:
  • Downlink control information DCI Downlink control information DCI.
  • the third information includes at least one of the following:
  • MAC-CE is used to indicate at least one TCI state, and the at least one TCI state corresponds to a code point in the TCI state indication field carried in the DCI; or MAC-CE is used to indicate at least one TCI state corresponding to multiple code points in the TCI state indication field carried in the DCI, and the TCI state indication field carried in the DCI is used to indicate one code point among multiple code points.
  • At least one TCI state indicated by the third information is used to determine the QCL assumption of at least one of PDSCH, PDCCH, a control resource set associated with the PDCCH, DMRS and NZPCSI-RS of PDSCH and/or PDCCH; and/or, at least one TCI state indicated by the third information is used to determine the QCL assumption of at least one of PUCCH, PUSCH, DMRS and SRS of PUCCH and/or PUSCH.
  • the TCI state includes an uplink and downlink combined TCI state and/or a downlink TCI state.
  • the various modules/units involved in the TCI determination device 100 and the TCI determination device 200 involved in the embodiments of the present disclosure are only for illustrative purposes and are not intended to be limiting.
  • the TCI determination device 100 in the embodiments of the present disclosure may also include a sending unit.
  • the TCI determination device 200 may also include a receiving unit and/or a processing unit.
  • the various units included in the TCI determination device 100 and the TCI determination device 200 may interact with each other and may also interact with other network element devices.
  • Fig. 15 is a block diagram of a TCI determination device according to an exemplary embodiment.
  • the device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the apparatus 300 may include one or more of the following components: a processing component 302 , a memory 304 , a power component 306 , a multimedia component 308 , an audio component 310 , an input/output (I/O) interface 312 , a sensor component 314 , and a communication component 316 .
  • the processing component 302 generally controls the overall operation of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above-mentioned method.
  • the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components.
  • the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.
  • the memory 304 is configured to store various types of data to support operations on the device 300. Examples of such data include instructions for any application or method operating on the device 300, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power component 306 provides power to the various components of the device 300.
  • the power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 300.
  • the multimedia component 308 includes a screen that provides an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
  • the multimedia component 308 includes a front camera and/or a rear camera. When the device 300 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
  • the audio component 310 is configured to output and/or input audio signals.
  • the audio component 310 includes a microphone (MIC), and when the device 300 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal can be further stored in the memory 304 or sent via the communication component 316.
  • the audio component 310 also includes a speaker for outputting audio signals.
  • I/O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.
  • the sensor assembly 314 includes one or more sensors for providing various aspects of the status assessment of the device 300.
  • the sensor assembly 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, the sensor assembly 314 can also detect the position change of the device 300 or a component of the device 300, the presence or absence of user contact with the device 300, the orientation or acceleration/deceleration of the device 300, and the temperature change of the device 300.
  • the sensor assembly 314 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact.
  • the sensor assembly 314 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 314 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices.
  • the device 300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • controllers microcontrollers, microprocessors or other electronic components to perform the above method.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 304 including instructions, and the instructions can be executed by the processor 320 of the device 300 to perform the above method.
  • the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
  • FIG16 is a block diagram of a TCI determination device according to an exemplary embodiment.
  • device 400 may be provided as a network device.
  • device 400 includes a processing component 422, which further includes one or more processors, and a memory resource represented by a memory 432 for storing instructions executable by the processing component 422, such as an application.
  • the application stored in the memory 432 may include one or more modules, each of which corresponds to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above method.
  • the device 400 may also include a power supply component 426 configured to perform power management of the device 400, a wired or wireless network interface 450 configured to connect the device 400 to a network, and an input/output (I/O) interface 458.
  • the device 400 may operate based on an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 432 including instructions, which can be executed by the processing component 422 of the device 400 to perform the above method.
  • the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
  • plural refers to two or more than two, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the singular forms “a”, “the” and “the” are also intended to include plural forms, unless the context clearly indicates other meanings.
  • first, second, etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions “first”, “second”, etc. can be used interchangeably.
  • the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

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Abstract

本公开是关于一种传输配置指示状态的确定方法、装置及存储介质，涉及通信技术领域，用于使终端和网络设备使用一致的TCI状态进行传输，提高了基于TCI状态的M-TRP传输的信号质量。该方法包括：接收网络设备发送的第一信息，基于第一信息确定具有链接关系的至少两个搜索空间集；接收网络设备发送的第二信息，基于第二信息确定至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。

Description

传输配置指示状态的确定方法、装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种传输配置指示(Transmission Configuration Indicator，TCI)状态的确定方法、装置及存储介质。
背景技术
在新无线技术(New Radio，NR)中，例如通信频段在frequency range 2时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束(beam)的发送和接收。
相关技术中，为减少信令开销，引入了统一传输配置指示状态(unified Transmission Configuration Indicator，unified TCI state)的使用。统一TCI状态可以是上行和下行分开指示，或者上下行联合指示。即网络设备如果指示一个用于下行的TCI状态，那么该TCI状态可以适用于终端的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)和/或其相应的DMRS、和至少一部分物理下行控制信道(Physical Downlink Control Channel，PDCCH)和/或其相应的DMRS，以及至少一部分信道状态信息参考信号(Channel State Information-Reference Signal，CSI-RS)。网络设备如果指示一个用于上行的TCI状态，那么该TCI状态可以适用于终端的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)和/或其相应的DMRS、和至少一部分物理上行控制信道(Physical Uplink Control Channel，PUCCH)和/或其相应的DMRS，以及至少一部分探测参考信号(Sounding Reference Signal，SRS)。网络设备如果指示一个联合TCI状态，则该联合TCI状态可以同时适用于上行和下行信道和/或参考信号。
相关技术只适用于单发送接收点(Single Transmission Reception Point，S-TRP)的情况。
发明内容
为克服相关技术中存在的问题，本公开提供一种传输配置指示状态的确定方法、装置及存储介质。
根据本公开实施例的第一方面，提供一种传输配置指示状态的确定方法，应用于终端，所述方法包括：接收网络设备发送的第一信息，基于所述第一信息确定具有链接关系的至少两个搜索空间集；接收所述网络设备发送的第二信息，基于所述第二信息确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
一种实施方式中，所述方法还包括：接收所述网络设备发送的第三信息，所述第三信 息用于指示至少一个TCI状态；基于所述至少一个TCI状态，确定是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源；和/或，基于所述至少一个TCI状态，确定监测所述至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态；所述基于所述至少一个TCI状态，确定是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源，包括：响应于所述第三信息所指示的TCI状态为一个TCI状态，确定停止监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述基于所述至少一个TCI状态，确定监测所述至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源，包括：基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为多个TCI状态；所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：基于所述映射关系和所述多个TCI状态，分别监测所述至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态；所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：基于所述映射关系和所述一个TCI状态，监测所述至少两个搜索空间集中所述一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态；所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：基于所述一个TCI状态，监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态包括第一TCI状态，所述第一TCI状态对应的搜索空间集与所述终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；
所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：
基于所述映射关系，确定所述第一TCI状态对应的第一搜索空间集，以及所述第三TCI状态对应的第二搜索空间集；
基于所述第一TCI状态监测所述第一搜索空间集的PDCCH候选资源，以及基于所述第三TCI状态监测所述第二搜索空间集的PDCCH候选资源。
一种实施方式中，所述第二信息通过如下至少一种方式指示所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
指示所述至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
一种实施方式中，所述第二信息包括以下至少一项：
无线资源控制信令RRC；
媒体接入控制控制单元MAC-CE；
下行控制信息DCI。
一种实施方式中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一种实施方式中，所述MAC-CE用于指示至少一个TCI状态，所述至少一个TCI状态对应所述DCI中承载的TCI状态指示域中的一个码点；或所述MAC-CE用于指示所述DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，所述DCI中承载的TCI状态指示域用于指示所述多个码点中的一个码点。
一种实施方式中，第三信息指示的至少一个TCI状态用于确定物理下行共享信道PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP信道状态信息参考信号CSI-RS中至少一项的准共址QCL假设；和/或，
所述第三信息指示的至少一个TCI状态用于确定物理上行控制信道PUCCH、物理上行共享信道PUSCH、PUCCH和/或PUSCH的DMRS和探测参考信号SRS中至少一项的QCL假设。
一种实施方式中，所述TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
根据本公开实施例的第二方面，提供一种传输配置指示状态的确定方法，应用于网络设备，所述方法包括：向终端发送第一信息，所述第一信息用于指示所述终端确定具有链接关系的至少两个搜索空间集；向所述终端发送第二信息，所述第二信息用于指示所述终 端确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
一种实施方式中，所述方法还包括：向所述终端发送第三信息，所述第三信息用于指示至少一个TCI状态，所述至少一个TCI状态用于指示所述终端是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源；和/或，所述至少一个TCI状态用于指示所述终端监测至少两个搜索空间集中至少一个第一搜索空间集的物理下行控制信道PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端停止监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为多个TCI状态，所述多个TCI状态用于指示所述终端分别监测所述至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端监测所述至少两个搜索空间集中所述一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态包括第一TCI状态，所述第一TCI状态对应的搜索空间集与所述终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；所述第一TCI状态用于确定所述终端监测所述第一TCI状态对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第二信息通过如下至少一种方式指示所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
指示所述至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
一种实施方式中，所述第二信息包括以下至少一项：
无线资源控制信令RRC；
媒体接入控制控制单元MAC-CE；
下行控制信息DCI。
一种实施方式中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一种实施方式中，所述MAC-CE用于指示至少一个TCI状态，所述至少一个TCI状态对应所述DCI中承载的TCI状态指示域中的一个码点；或所述MAC-CE用于指示所述DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，所述DCI中承载的TCI状态指示域用于指示所述多个码点中的一个码点。
一种实施方式中，第三信息指示的至少一个TCI状态用于确定物理下行共享信道PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP信道状态信息参考信号CSI-RS中至少一项的准共址QCL假设；和/或，所述第三信息指示的至少一个TCI状态用于确定物理上行控制信道PUCCH、物理上行共享信道PUSCH、PUCCH和/或PUSCH的DMRS和探测参考信号SRS中至少一项的QCL假设。
一种实施方式中，所述TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
根据本公开实施例的第三方面，提供一种传输配置指示状态的确定装置，应用于终端，所述装置包括：
接收模块，用于接收网络设备发送的第一信息，基于所述第一信息确定具有链接关系的至少两个搜索空间集；
接收模块，还用于接收所述网络设备发送的第二信息，基于所述第二信息确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
一种实施方式中，接收模块，还用于接收所述网络设备发送的第三信息，所述第三信息用于指示至少一个TCI状态；处理模块，用于基于所述至少一个TCI状态，确定是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源；和/或，基于所述至少一个TCI状态，确定监测所述至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态；所述处理模块，用于响应于所述第三信息所指示的TCI状态为一个TCI状态，确定停止监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述基于所述至少一个TCI状态，所述处理模块，用于基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为多个TCI状态；所述处理模块，用于基于所述映射关系和所述多个TCI状态，分别监测所述至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态；所述处理模块，用于基于所述映射关系和所述一个TCI状态，监测所述至少两个搜索空间集中所述一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态；所述处理模块，用于基于所述一个TCI状态，监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态包括第一TCI状态，所述第一TCI状态对应的搜索空间集与所述终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；
所述处理模块，用于基于所述映射关系，确定所述第一TCI状态对应的第一搜索空间集，以及所述第三TCI状态对应的第二搜索空间集；基于所述第一TCI状态监测所述第一搜索空间集的PDCCH候选资源，以及基于所述第三TCI状态监测所述第二搜索空间集的PDCCH候选资源。
一种实施方式中，所述第二信息通过如下至少一种方式指示所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
指示所述至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
一种实施方式中，所述第二信息包括以下至少一项：
无线资源控制信令RRC；
媒体接入控制控制单元MAC-CE；
下行控制信息DCI。
一种实施方式中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一种实施方式中，所述MAC-CE用于指示至少一个TCI状态，所述至少一个TCI状态对应所述DCI中承载的TCI状态指示域中的一个码点；或所述MAC-CE用于指示所述 DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，所述DCI中承载的TCI状态指示域用于指示所述多个码点中的一个码点。
一种实施方式中，第三信息指示的至少一个TCI状态用于确定物理下行共享信道PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP信道状态信息参考信号CSI-RS中至少一项的准共址QCL假设；和/或，
所述第三信息指示的至少一个TCI状态用于确定物理上行控制信道PUCCH、物理上行共享信道PUSCH、PUCCH和/或PUSCH的DMRS和探测参考信号SRS中至少一项的QCL假设。
一种实施方式中，所述TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
根据本公开实施例的第四方面，提供一种传输配置指示状态的确定装置，应用于网络设备，所述装置包括：
发送模块，用于向终端发送第一信息，所述第一信息用于使所述终端确定具有链接关系的至少两个搜索空间集；
所述发送模块，还用于向所述终端发送第二信息，所述第二信息用于使所述终端确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
一种实施方式中，所述发送模块，用于向所述终端发送第三信息，所述第三信息用于指示至少一个TCI状态，所述至少一个TCI状态用于指示所述终端是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源；和/或，所述至少一个TCI状态用于指示所述终端监测至少两个搜索空间集中至少一个第一搜索空间集的物理下行控制信道PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端停止监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为多个TCI状态，所述多个TCI状态用于指示所述终端分别监测所述至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端监测所述至少两个搜索空间集中所述一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端监测所述至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，所述第三信息所指示的TCI状态包括第一TCI状态，所述第一TCI状态对应的搜索空间集与所述终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；所述第一TCI状态用于确定所述终端监测所述第一TCI状态对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，所述第二信息通过如下至少一种方式指示所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
指示所述至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
指示所述至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
一种实施方式中，所述第二信息包括以下至少一项：
无线资源控制信令RRC；
媒体接入控制控制单元MAC-CE；
下行控制信息DCI。
一种实施方式中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一种实施方式中，所述MAC-CE用于指示至少一个TCI状态，所述至少一个TCI状态对应所述DCI中承载的TCI状态指示域中的一个码点；或所述MAC-CE用于指示所述DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，所述DCI中承载的TCI状态指示域用于指示所述多个码点中的一个码点。
一种实施方式中，第三信息指示的至少一个TCI状态用于确定物理下行共享信道PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP信道状态信息参考信号CSI-RS中至少一项的准共址QCL假设；和/或，所述第三信息指示的至少一个TCI状态用于确定物理上行控制信道PUCCH、物理上行共享信道PUSCH、PUCCH和/或PUSCH的DMRS和探测参考信号SRS中至少一项的QCL假设。
一种实施方式中，所述TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
根据本公开实施例的第五方面，提供一种传输配置指示状态的确定装置，包括：处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：执行上述第一方 面及其任意一种实施方式中所述的方法。
根据本公开实施例的第六方面，提供一种传输配置指示状态的确定装置，包括：处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：执行上述第二方面及其任意一种实施方式中所述的方法。
根据本公开实施例的第七方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行上述第一方面及其任意一种实施方式中所述的方法。
根据本公开实施例的第八方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行上述第二方面及其任意一种实施方式中所述的方法。
根据本公开实施例的第九方面，提供一种通信***，包括终端和网络设备，其中，所述第一终端设备用于执行上述第一方面及其任意一种实施方式所述的方法；所述第二终端设备用于执行如上述第二方面及其任意一种实施方式所述的方法。
本公开的实施例提供的技术方案可以包括以下有益效果：在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，使得终端和网络设备使用一致的TCI状态进行传输，提高了基于TCI状态的M-TRP传输的信号质量。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种无线通信***示意图。
图2是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图3是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图4是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图5是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图6是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图7是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图8是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图9是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图10是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图11是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图12是根据一示例性实施例示出的一种TCI状态的确定方法的流程图。
图13是根据一示例性实施例示出的一种TCI状态的确定装置的框图。
图14是根据一示例性实施例示出的一种TCI状态的确定装置的框图。
图15是根据一示例性实施例示出的一种用于TCI状态的确定装置的框图。
图16是根据一示例性实施例示出的一种用于TCI状态的确定装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。
在新无线技术(New Radio，NR)中，例如通信频段在frequency range 2时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束(beam)的发送和接收。
相关技术中，为减少信令开销，引入了统一传输配置指示状态(unified Transmission Configuration Indicator，unified TCI state)的使用。统一TCI状态可以是上行和下行分开指示，或者上下行联合指示。即网络设备如果指示一个用于下行的TCI状态，那么该TCI状态可以适用于终端的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)和/或其相应的DMRS、和至少一部分物理下行控制信道(Physical Downlink Control Channel，PDCCH)和/或其相应的DMRS，以及至少一部分信道状态信息参考信号(Channel State Information-Reference Signal，CSI-RS)。网络设备如果指示一个用于上行的TCI状态，那么该TCI状态可以适用于终端的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)和/或其相应的DMRS、和至少一部分物理上行控制信道(Physical Uplink Control Channel，PUCCH)和/或其相应的DMRS，以及至少一部分探测参考信号(Sounding Reference Signal，SRS)。网络设备如果指示一个联合TCI状态，则该联合TCI状态可以同时适用于上行和下行信道和/或参考信号。
相关技术只适用于单发送接收点(Single Transmission Reception Point，S-TRP)的情况。
发明人注意到，在多发送接收点(Multi Transmission Reception Point，M-TRP)场景下，对于配置了具有链接关系的两个搜索空间集(Search Space set，SS set)来说，若指示多个 TCI状态时，两个搜索空间集可以分别采用一个TCI状态。但如果仅指示了一个TCI状态时，被配置了链接关系的两个搜索空间集内PDCCH候选集的监测如何进行，是需要解决的问题。
本公开实施例提供的TCI状态的确定方法可应用于图1所示的无线通信***中。参阅图1所示，该无线通信***中包括网络设备和终端。终端通过无线资源与网络设备相连接，并进行数据传输。
可以理解的是，图1所示的无线通信***仅是进行示意性说明，无线通信***中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信***中包括网络设备数量和终端数量不做限定。
进一步可以理解的是，本公开实施例无线通信***，是一种提供无线通信功能的网络。无线通信***可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，基站)、家庭基站、无线保真(wireless fidelity，WIFI)***中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR***中的gNB，或者，还可以是构成基站的组件或一部分设备等。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。在本公开中，网络设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域(小区)内的终端进行通信。此外，当为车联网(V2X)通信***时，网络设备还可以是车载设备。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、客户前置设备(Customer  Premise Equipment，CPE)，口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信***时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
在新无线技术(New Radio，NR)中，例如通信频段在frequency range 2时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束(beam)的发送和接收。
相关技术中，PDCCH和/或PDCCH的DMRS、PDSCH和/或PDSCH的DMRS、PUCCH和/或PUCCH的DMRS、PUSCH和/或PUSCH的DMRS，和/或参考信号等利用的波束都是被独立指示的。其中，参考信号可以包括CSI-RS、SRS、定位参考信号(Positioning Reference Signal，PRS)，相位参考信号(tracking reference signal，TRS)等等。例如，CSI-RS可以包括用于信道状态信息测量的CSI-RS、用于波束测量的CSI-RS或用于路径损失估计的CSI-RS。SRS可以包括用于基于码本或非码本的信道状态信息测量的SRS、用于波束测量的SRS或用于定位测量的SRS。
通常情况下，PDCCH和/或PDCCH的DMRS，以及PUCCH和/或PUCCH的DMRS分别通过MAC CE来激活一个波束，而PDSCH和/或PDSCH的DMRS，以及PUSCH和/或PUSCH的DMRS分别通过DCI信令来指示各自对应的波束。
这里的波束可以通过TCI状态或spatialrelationinfo(空间关系)来指示。其中PDCCH对应的TCI状态包含PDCCH和/或其DMRS对应的TCI状态，即该TCI状态用于PDCCH和/或其DMRS的接收。同理，PDSCH对应的TCI状态包含PDSCH和/或其DMRS对应的TCI状态，即该TCI状态用于PDSCH和/或其DMRS的接收；PUCCH对应的TCI状态或spatialrelationinfo包含PUCCH和/或其DMRS对应的TCI状态或spatialrelationinfo，即该TCI状态或spatialrelationinfo用于PUCCH和/或其DMRS的发送；PUSCH对应的TCI状态或spatialrelationinfo包含PUSCH和/或其DMRS对应的TCI状态或spatialrelationinfo，即该TCI状态或spatialrelationinfo用于PUSCH和/或其DMRS的发送。
进一步的，为减少信令开销，另一种相关技术中，引入了统一传输配置指示状态(unified Transmission Configuration Indicator，unified TCI state)的使用。统一TCI状态可以是上行和下行分开指示，或者上下行联合指示。即网络设备如果指示一个用于下行的TCI状态(DL TCI state)，那么该TCI状态可以适用于终端的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)和/或其DMRS，和至少一部分物理下行控制信道(Physical Downlink Control Channel，PDCCH)和/或其DMRS，以及至少一部分信道状态信息参考 信号(Channel State Information-Reference Signal，CSI-RS)。网络设备如果指示一个用于上行的TCI状态(UL TCI state)，那么该TCI状态可以适用于终端的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)和/或其DMRS，和至少一部分物理上行控制信道(Physical Uplink Control Channel，PUCCH)和/或其DMRS，以及至少一部分探测参考信号(Sounding Reference Signal，SRS)。网络设备如果指示一个联合TCI状态(Joint TCI state)，则该联合TCI状态可以同时适用于上行和下行信道/参考信号。
但是，相关技术只适用于单发送接收点(Single Transmission Reception Point，S-TRP)的情况，没有考虑多发送接收点(Multi Transmission Reception Point，M-TRP)的情况。
在单DCI且M-TRP场景下，一个MAC CE或DCI信令可以指示多个的TCI状态。对于配置了具有链接关系的两个搜索空间集来说，若指示多个TCI状态时，两个搜索空间集可以分别采用一个TCI状态。但如果仅指示了一个TCI状态时，被配置了链接关系的两个搜索空间集内PDCCH候选集的监测如何进行，是需要解决的问题。
基于此，本公开实施例提供一种TCI状态的确定方法，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，使得终端和网络设备使用一致的TCI状态，提高了基于TCI状态的M-TRP传输的信号质量。
值得说明的是，本公开实施例中涉及的TCI状态除另有说明外均是指unified TCI state。
图2是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，如图2所示，TCI状态的确定方法应用于终端中，包括以下步骤。
在步骤S11中，接收网络设备发送的第一信息，基于第一信息确定具有链接关系的至少两个搜索空间集。
在步骤S12中，接收网络设备发送的第二信息，基于第二信息确定至少两个搜索空间集与TCI状态之间的映射关系。
在本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，使得终端和网络设备使用一致的TCI状态，提高了基于TCI状态的M-TRP传输的信号质量。
在本公开实施例提供的一种TCI状态的确定方法中，在具有链接关系的至少两个搜索空间集中，PDCCH候选资源编号相同的两个PDCCH候选资源用于发送同一个DCI。也即两个PDCCH候选资源用于PDCCH的重复传输。且两个搜索空间集对应的周期和时隙偏移值相同，PDCCH占用的符合数相同，搜索空间类型相同，DCI格式相同。
在本公开实施例提供的一种TCI状态的确定方法中的一种示例性实施方式中，基于第 一信息确定具有链接关系的第一搜索空间集和第二搜索空间集，基于第二信息确定第一搜索空间集对应第一TCI状态，第二搜索空间集对应第二TCI状态，从而使得终端和网络设备之间在传输PDCCH时在TCI状态采用上保持一致，提高了基于TCI状态的M-TRP传输的信号质量。
图3是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，如图3所示，包括以下步骤。
在步骤S21中，接收网络设备发送的第三信息，第三信息用于指示至少一个TCI状态。
在步骤S22中，基于至少一个TCI状态，确定是否监测至少两个搜索空间集的PDCCH候选资源。在本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，并基于网络设备发送的第三信息指示的TCI状态，确定是否监测至少两个搜索空间集的物理下行控制信道PDCCH候选资源，使终端和网络设备统一是否监测搜索空间集，从而提高基于TCI状态的M-TRP传输的信号质量。
本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，可以通过任意方式确定至少两个搜索空间集各自对应的TCI状态。例如，可以通过步骤S11-步骤S12的方式确定出至少两个搜索空间集各自对应的TCI状态；则第二信息指示的至少两个搜索空间集与TCI状态之间的映射关系，其指示的是与第三信息指示的TCI状态之间的映射关系。
在本公开实施例中，步骤S22中，可以基于至少一个TCI状态，确定是否监测至少两个搜索空间集的PDCCH候选资源。而通过至少一个TCI状态确定是否监测至少两个搜索空间集的PDCCH候选资源的方法可以有很多种方式，本公开实施例中通过以下的如图4-图10所示的多个方案对这些方式分别进行说明。需要说明，本公开实施例中如图4-图10所示的多个方案是可以各自独立被实施例的，也可以是其中的任意一个实施例结合其他实施例一起被实施。在本公开实施例提供的一种TCI状态的确定方法中，基于第三信息指示的至少一个TCI状态，确定监测至少两个搜索空间集的PDCCH候选资源的基础上，进一步的基于至少一个TCI状态确定监测的是哪个搜索空间集PDCCH候选资源。
图4是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，如图4所示，包括以下步骤。
在步骤S31中，接收网络设备发送的第三信息，第三信息用于指示至少一个TCI状态。
在步骤S32中，基于至少一个TCI状态，确定是否监测至少两个搜索空间集的PDCCH候选资源。
在步骤S33中，若确定监测至少两个搜索空间集的PDCCH候选资源，则基于至少一个TCI状态，确定监测至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。
在本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，并基于网络设备发送的第三信息指示的TCI状态，确定是否监测至少两个搜索空间集的PDCCH候选资源，在确定监测至少两个搜索空间集的PDCCH候选资源时，进一步基于第三信息指示的至少一个TCI状态，确定监测至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。使终端和网络设备使用相同的TCI状态进行传输，从而提高基于TCI状态的M-TRP传输的信号质量。
下面就如何基于第三信息指示的至少一个TCI状态确定是否监测至少两个搜索空间集的物理下行控制信道PDCCH候选资源进行说明。
在本公开实施例提供的一种TCI状态的确定方法中，响应于第三信息所指示的TCI状态为一个TCI状态，确定停止监测至少两个搜索空间集的PDCCH候选资源。如图5所示，图5是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，包括以下步骤：
在步骤S41中，接收网络设备发送的第三信息，第三信息用于指示一个TCI状态。
在步骤S42中，基于一个TCI状态，确定停止监测至少两个搜索空间集的PDCCH候选资源。
在本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，并基于网络设备发送的第三信息指示的TCI状态，确定停止监测至少两个搜索空间集的物理下行控制信道PDCCH候选资源，使终端和网络设备能够统一确定放弃接收本次传输的DCI，从而提高基于TCI状态的M-TRP传输的信号质量。
在一些实施例中，终端停止监测至少两个搜索空间集的PDCCH候选资源，那么该至少两个搜索空间集的PDCCH候选资源对应的控制信道元素(Control Channel Element，CCE)不计算到终端监测的CCE数目中，或至少两个搜索空间集的PDCCH候选资源对应的CCE数目计数为0。
在一些实施例中，终端停止监测至少两个搜索空间集的PDCCH候选资源，那么该至少两个搜索空间集的PDCCH候选资源对应的盲检次数不计算在终端的盲检次数中，或至少两个搜索空间集的PDCCH候选资源对应的盲检次数为0。
在本公开实施例提供的一种TCI状态的确定方法中，响应于基于第三信息指示的至少一个TCI状态确认监测至少两个搜索空间集的PDCCH候选资源，基于映射关系以及第三 信息所指示的至少一个TCI状态，监测至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源。如图6所示，图6是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，包括以下步骤。
在步骤S51中，接收网络设备发送的第三信息，第三信息用于指示至少一个TCI状态。
在步骤S52中，基于映射关系以及第三信息所指示的至少一个TCI状态，监测至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源。
在本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，并基于映射关系和网络设备发送的第三信息指示的TCI状态，确定监测至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，使终端和网络设备使用相同的TCI状态进行传输，并使终端和网络设备能够确定监测哪个搜索空间集，从而提高基于TCI状态的M-TRP传输的信号质量。
下面就如何基于映射关系以及第三信息所指示的至少一个TCI状态，监测至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，进行说明。
在本公开实施例提供的一种TCI状态的确定方法中，响应于第三信息所指示的TCI状态为多个TCI状态，基于映射关系和多个TCI状态，分别监测至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。如图7所示，图7是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，包括以下步骤。
在步骤S61中，接收网络设备发送的第三信息，第三信息用于指示多个TCI状态。
在步骤S62中，基于映射关系以及第三信息所指示的多个TCI状态，分别监测至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种示例性实施方式是，基于第一信息确定具有链接关系的第一搜索空间集和第二搜索空间集，基于第二信息确定第一搜索空间集对应第一TCI状态，第二搜索空间对应第二TCI状态。若第三信息指示的多个TCI状态包括第一TCI状态和第二TCI状态，则基于第一TCI状态监测第一搜索空间集的PDCCH候选资源，基于第二TCI状态监测第二搜索空间集的PDCCH候选资源。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的物理下行控制信道PDCCH候选资源对应的CCE都计算到终端监测的CCE数目中。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的PDCCH候选资源对应的盲检次数都计算在终端的盲检次数中。其中该两个搜索空间集的PDCCH候选资源对应的盲检次数可以为2或3。
值得说明的是，在步骤S62中涉及到的映射关系指的是至少两个搜索空间集与TCI状 态之间的映射关系。除本公开实施例外，以下任一实施例中所涉及到的映射关系均是指至少两个搜索空间集与TCI状态之间的映射关系。
在本公开实施例提供的一种TCI状态的确定方法中，响应于第三信息所指示的TCI状态为一个TCI状态，基于映射关系和一个TCI状态，监测至少两个搜索空间集中一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。如图8所示，图8是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，包括以下步骤。
在步骤S71中，接收网络设备发送的第三信息，第三信息用于指示一个TCI状态。
在步骤S72中，基于映射关系以及一个TCI状态，监测至少两个搜索空间集中一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
一种示例性实施方式是，基于第一信息确定具有链接关系的第一搜索空间集和第二搜索空间集，基于第二信息确定第一搜索空间集对应第一TCI状态，第二搜索空间对应第二TCI状态。若第三信息指示的一个TCI状态为第一TCI状态，则基于第一TCI状态监测第一搜索空间集的PDCCH候选资源，停止监测第二搜索空间集的PDCCH搜索资源。
在一些实施例中，终端监测第一搜索空间集的PDCCH候选资源，那么第一搜索空间集的PDCCH候选资源对应的CCE需要计算到终端监测的CCE数目。
在一些实施例中，终端停止监测第二搜索空间集的PDCCH候选资源，那么第二搜索空间集的PDCCH候选资源对应的CCE不计算到终端监测的CCE数目中，或第二搜索空间集的PDCCH候选资源对应的CCE数目计数为0。
在一些实施例中，终端监测第一搜索空间集的PDCCH候选资源，那么第一搜索空间集的PDCCH候选资源对应的盲检次数需要计算到终端监测的CCE数目。其中第一搜索空间集的PDCCH候选资源对应的盲检次数可以为1或2或3。
在一些实施例中，终端停止监测第二搜索空间集的PDCCH候选资源，那么第二搜索空间集的PDCCH候选资源对应的盲检次数不计算在终端的盲检次数中，或第二搜索空间集的PDCCH候选资源对应的盲检次数为0。
在本公开实施例提供的一种TCI状态的确定方法中，响应于第三信息所指示的TCI状态为一个TCI状态，基于一个TCI状态，监测至少两个搜索空间集的PDCCH候选资源。如图9所示，图9是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，包括以下步骤。
在步骤S81中，接收网络设备发送的第三信息，第三信息用于指示一个TCI状态。
在步骤S82中，基于一个TCI状态，监测至少两个搜索空间集的PDCCH候选资源。
一种示例性实施方式是，基于第一信息确定具有链接关系的第一搜索空间集和第二搜 索空间集，基于第二信息确定第一搜索空间集对应第一TCI状态，第二搜索空间对应第二TCI状态。若第三信息指示的一个TCI状态为第一TCI状态，则基于第一TCI状态同时监测第一搜索空间集的PDCCH候选资源和第二搜索空间资源集的PDCCH候选资源。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的物理下行控制信道PDCCH候选资源对应的CCE都计算到终端监测的CCE数目中。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的PDCCH候选资源对应的盲检次数都计算在终端的盲检次数中。其中该两个搜索空间集的PDCCH候选资源对应的盲检次数可以为2或3。
在本公开实施例提供的一种TCI状态的确定方法中，响应于第三信息所指示的TCI状态为第一TCI状态，第一TCI状态对应的搜索空间集与终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同，则基于映射关系，确定第一TCI状态对应的第一搜索空间集，以及第三TCI状态对应的第二搜索空间集，并基于第一TCI状态监测第一搜索空间集的PDCCH候选资源，以及基于第三TCI状态监测第二搜索空间集所关联的PDCCH候选资源。如图10所示，图10是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，包括以下步骤。
在步骤S91中，接收网络设备发送的第三信息，第三信息用于指示第一TCI状态，第一TCI状态对应的搜索空间集与终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同。
在步骤S92中，基于映射关系，确定第一TCI状态对应的第一搜索空间集，以及第三TCI状态对应的第二搜索空间集。
在步骤S93中，基于第一TCI状态监测第一搜索空间集的PDCCH候选资源，以及基于第三TCI状态监测第二搜索空间集的PDCCH候选资源。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的物理下行控制信道PDCCH候选资源对应的CCE都计算到终端监测的CCE数目中。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的PDCCH候选资源对应的盲检次数都计算在终端的盲检次数中。其中该两个搜索空间集的PDCCH候选资源对应的盲检次数可以为2或3。
值得说明的是，本公开实施例中第三信息所指示的第一TCI状态可以包括一个或多个TCI状态，同样第一TCI状态对应的第一搜索空间集也包括一个或多个TCI状态分别对应的第一搜索空间集，终端当前正在使用的TCI状态也不仅仅只包括第二TCI状态和第三TCI状态。第三信息所指示的第一TCI状态对应的第一搜索空间集仅与终端当前正在使用 的TCI状态对应的搜索空间集的一部分相同时，采用第三信息指示的第一TCI状态监测与终端当前正在使用的TCI状态对应的搜索空间集相同的第一搜索空间集，其他搜索空间集依旧按照终端当前正在使用的TCI状态监测。
在本公开实施例提供的一种TCI状态的确定方法中，第二信息通过如下至少一种方式指示至少两个搜索空间集与TCI状态之间的映射关系：
A、指示至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
B、指示至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
C、指示至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
在本公开实施例提供的一种TCI状态的确定方法中的一种实施方式是，基于其他网络信令或指示信息等配置至少两个搜索空间集分别关联的控制资源集和/或其控制资源集所属的控制资源集组或控制资源集池索引，进而再指示至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态或至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态时，基于至少两个搜索空间集分别关联的控制资源集，确定至少两个搜索空间集对应的一个或多个TCI状态。
在本公开实施例提供的一种TCI状态的确定方法中，第二信息包括以下至少一项：
无线资源控制信令RRC；
媒体接入控制控制单元MAC-CE；
下行控制信息DCI。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一示例性实施方式中，第三信息包括MAC-CE，或MAC-CE+DCI。
在本公开实施例提供的一种TCI状态的确定方法中，MAC-CE用于指示至少一个TCI状态，至少一个TCI状态对应DCI中承载的TCI状态指示域中的一个码点；或，MAC-CE用于指示DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，DCI中承载的TCI状态指示域用于指示多个码点中的一个码点。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息指示的至少一个TCI状态用于确定PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP CSI-RS中至少一项的准共址QCL假设；和/或，第三信息指示的至少一个TCI状态用于确定PUCCH、PUSCH、PUCCH和/或PUSCH的DMRS 和SRS中至少一项的QCL假设。
在本公开实施例提供的一种TCI状态的确定方法中，TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
基于相同的构思，本公开还提供一种应用于网络设备的TCI状态的确定方法。
图11是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，如图11所示，TCI状态的确定方法用于网络设备中，包括以下步骤。
在步骤S1001中，向终端发送第一信息，第一信息用于指示终端具有链接关系的至少两个搜索空间集。
在步骤S1002中，向终端发送第二信息，第二信息用于指示终端至少两个搜索空间集与TCI状态之间的映射关系。
在本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，确定至少两个搜索空间集各自对应的TCI状态，使得终端和网络设备使用同一的TCI状态，提高了基于TCI状态的M-TRP传输的信号质量。
图12是根据一示例性实施例示出的一种TCI状态的确定方法的流程图，如图12所示，包括以下步骤。
在步骤S1101中，向终端发送第三信息，第三信息用于指示至少一个TCI状态。
其中，至少一个TCI状态用于指示终端是否监测至少两个搜索空间集的PDCCH候选资源；和/或，至少一个TCI状态用于指示终端监测至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。
本公开实施例中，在终端被配置为具有链接关系的至少两个搜索空间集的情况下，可以通过任意方式确定至少两个搜索空间集各自对应的TCI状态。例如，可以终端通过步骤S1001-步骤S1002的方式确定出至少两个搜索空间集各自对应的TCI状态；则第二信息指示的至少两个搜索空间集与TCI状态之间的映射关系，其指示的是与第三信息指示的TCI状态之间的映射关系。
需要说明的是，步骤S1101既可以单独被实施，也可以配合本公开的任何一个实施例一起被实施，在此不再赘述。
在本公开实施例中，网络设备向终端发送第三信息，第三信息用于指示至少一个TCI状态，至少一个TCI状态用于指示终端是否监测至少两个搜索空间集PDCCH候选资源；和/或，至少一个TCI状态用于指示终端监测至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。从而使终端基于第三信息指示的至少一个TCI状态，确定是否监测至少两个搜索空间集的道PDCCH候选资源；和/或，确定监测至少两个搜索空间集中哪 个搜索空间集的PDCCH候选资源。因此，使终端和网络设备统一是否监测搜索空间集，以及监测的是哪个搜索空间集，从而提高基于TCI状态的M-TRP传输的信号质量。在本公开实施例中，终端可以基于至少一个TCI状态，确定是否监测至少两个搜索空间集的PDCCH候选资源。而通过至少一个TCI状态确定是否监测至少两个搜索空间集的PDCCH候选资源的方法可以有很多种方式，本公开实施例中通过以下的多个方案对这些方式分别进行说明。需要说明，本公开实施例中的多个方案是可以各自独立被实施例的，也可以是其中的任意一个实施例结合其他实施例一起被实施。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息所指示的TCI状态为一个TCI状态，一个TCI状态用于指示终端停止监测至少两个搜索空间集的PDCCH候选资源。
在一些实施例中，终端停止监测至少两个搜索空间集的PDCCH候选资源，那么该至少两个搜索空间集的PDCCH候选资源对应的控制信道元素(Control Channel Element，CCE)不计算到终端监测的CCE数目中，或至少两个搜索空间集的PDCCH候选资源对应的CCE数目计数为0。
在一些实施例中，终端停止监测至少两个搜索空间集的PDCCH候选资源，那么该至少两个搜索空间集的PDCCH候选资源对应的盲检次数不计算在终端的盲检次数中，或至少两个搜索空间集的PDCCH候选资源对应的盲检次数为0。
在本公开实施例中，通过网络设备向终端发送的第三信息指示的一个TCI状态，使终端确定停止监测至少两个搜索空间集的物理下行控制信道PDCCH候选资源，从而终端和网络设备能够统一确定放弃接收本次传输的DCI，从而提高基于TCI状态的M-TRP传输的信号质量。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息所指示的TCI状态为多个TCI状态，多个TCI状态用于指示终端分别监测至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种示例性实施方式是，若第三信息指示的多个TCI状态包括第一TCI状态和第二TCI状态，终端可以基于第二信息确定第一搜索空间集对应第一TCI状态，第二搜索空间对应第二TCI状态，则终端可以基于第一TCI状态监测第一搜索空间集的PDCCH候选资源，基于第二TCI状态监测第二搜索空间集的PDCCH候选资源。从而使终端和网络设备使用相同的TCI状态进行传输，提高基于TCI状态的M-TRP传输的信号质量。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的物理下行控制信道PDCCH候选资源对应的CCE都计算到终端监测的CCE数目中。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的PDCCH候选资源对应的盲检次数都计算在终端的盲检次数中。其中该两个搜索空间集的PDCCH候选资源对应的盲检次数可以为2或3。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息所指示的TCI状态为一个TCI状态，一个TCI状态用于指示终端监测至少两个搜索空间集中一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。一种示例性实施方式是，终端基于第二信息确定第一搜索空间集对应第一TCI状态，第二搜索空间对应第二TCI状态。若网络设备发送的第三信息指示的一个TCI状态为第一TCI状态，则终端基于第一TCI状态监测第一搜索空间集的PDCCH候选资源，停止监测第二搜索空间集的PDCCH搜索资源。
在一些实施例中，终端监测第一搜索空间集的PDCCH候选资源，那么第一搜索空间集的PDCCH候选资源对应的CCE需要计算到终端监测的CCE数目。
在一些实施例中，终端停止监测第二搜索空间集的PDCCH候选资源，那么第二搜索空间集的PDCCH候选资源对应的CCE不计算到终端监测的CCE数目中，或第二搜索空间集的PDCCH候选资源对应的CCE数目计数为0。
在一些实施例中，终端监测第一搜索空间集的PDCCH候选资源，那么第一搜索空间集的PDCCH候选资源对应的盲检次数需要计算到终端监测的CCE数目。其中第一搜索空间集的PDCCH候选资源对应的盲检次数可以为1或2或3。
在一些实施例中，终端停止监测第二搜索空间集的PDCCH候选资源，那么第二搜索空间集的PDCCH候选资源对应的盲检次数不计算在终端的盲检次数中，或第二搜索空间集的PDCCH候选资源对应的盲检次数为0。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息所指示的TCI状态为一个TCI状态，一个TCI状态用于指示终端监测至少两个搜索空间集的PDCCH候选资源。
一种示例性实施方式是，终端基于第二信息确定第一搜索空间集对应第一TCI状态，第二搜索空间对应第二TCI状态。若网络设备发送的第三信息指示的一个TCI状态为第一TCI状态，则终端基于第一TCI状态同时监测第一搜索空间集的PDCCH候选资源和第二搜索空间资源集的PDCCH候选资源。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的物理下行控制信道PDCCH候选资源对应的CCE都计算到终端监测的CCE数目中。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的PDCCH候选资源对应的盲检次数都计算在终端的盲检次数中。其中该两个搜索空间集的PDCCH候选资源对应的盲检次数可以为2或3。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息所指示的TCI状态包括第一TCI状态，第一TCI状态对应的搜索空间集与终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；第一TCI状态用于确定终端监测第一TCI状态对应的第一搜索空间集的PDCCH候选资源。
在本公开实施例中，当第三信息所指示的TCI状态包括第一TCI状态，第一TCI状态对应的搜索空间集与终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同时，终端基于第二信息确定第一TCI状态对应的第一搜索空间集，以及第三TCI状态对应的第二搜索空间集。并基于第一TCI状态监测第一TCI状态对应的第一搜索空间集的PDCCH候选资源，基于第三TCI状态监测第二搜索空间集的PDCCH候选资源。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的物理下行控制信道PDCCH候选资源对应的CCE都计算到终端监测的CCE数目中。
在一些实施例中，终端监测两个搜索空间集的PDCCH候选资源，那么该两个搜索空间集的PDCCH候选资源对应的盲检次数都计算在终端的盲检次数中。其中该两个搜索空间集的PDCCH候选资源对应的盲检次数可以为2或3。
值得说明的是，本公开实施例中第三信息所指示的第一TCI状态可以包括一个或多个TCI状态，同样第一TCI状态对应的第一搜索空间集也包括一个或多个TCI状态分别对应的第一搜索空间集，终端当前正在使用的TCI状态也不仅仅只包括第二TCI状态和第三TCI状态。第三信息所指示的第一TCI状态对应的第一搜索空间集仅与终端当前正在使用的TCI状态对应的搜索空间集的一部分相同时，采用第三信息指示的第一TCI状态监测与终端当前正在使用的TCI状态对应的搜索空间集相同的第一搜索空间集，其他搜索空间集依旧按照终端当前正在使用的TCI状态监测。
在本公开实施例提供的一种TCI状态的确定方法中，第二信息通过如下至少一种方式指示所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
A、指示至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
B、指示至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
C、指示至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
在本公开实施例提供的一种TCI状态的确定方法中的一种实施方式是，网络设备还可以基于其他网络信令或指示信息等配置至少两个搜索空间集分别关联的控制资源集和/或其控制资源集所属的控制资源集组或控制资源集池索引，进而再指示至少两个搜索空间集 分别关联的控制资源集分别对应的一个或多个TCI状态或至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态时，使终端基于至少两个搜索空间集分别关联的控制资源集，确定至少两个搜索空间集对应的一个或多个TCI状态。
在本公开实施例提供的一种TCI状态的确定方法中，第二信息包括以下至少一项：
无线资源控制信令RRC；
媒体接入控制控制单元MAC-CE；
下行控制信息DCI。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一示例性实施方式中，第三信息包括MAC-CE，或MAC-CE+DCI。
在本公开实施例提供的一种TCI状态的确定方法中，MAC-CE用于指示至少一个TCI状态，至少一个TCI状态对应DCI中承载的TCI状态指示域中的一个码点；或，MAC-CE用于指示DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，DCI中承载的TCI状态指示域用于指示多个码点中的一个码点。
在本公开实施例提供的一种TCI状态的确定方法中，第三信息指示的至少一个TCI状态用于确定PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP CSI-RS中至少一项的准共址QCL假设；和/或，第三信息指示的至少一个TCI状态用于确定PUCCH、PUSCH、PUCCH和/或PUSCH的DMRS和SRS中至少一项的QCL假设。
在本公开实施例提供的一种TCI状态的确定方法中，TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例中可以配合前述的实施例使用，也可以是独立使用。无论是单独使用还是配合前述的实施例一起使用，其实现原理类似。本公开实施中，部分实施例中是以一起使用的实施方式进行说明的。当然，本领域内技术人员可以理解，这样的举例说明并非对本公开实施例的限定。
基于相同的构思，本公开实施例还提供一种TCI状态的确定装置。
可以理解的是，本公开实施例提供的TCI状态的确定装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单 元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图13是根据一示例性实施例示出的一种TCI状态的确定装置框图。参照图13，该装置包括接收模块101。其中，TCI状态的确定装置100应用于终端中。
接收模块101，用于接收网络设备发送的第一信息，基于第一信息确定具有链接关系的至少两个搜索空间集；
接收模块101，还用于接收网络设备发送的第二信息，基于第二信息确定至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
一种实施方式中，TCI状态的确定装置100还包括处理模块102。
接收模块101，还用于接收网络设备发送的第三信息，第三信息用于指示至少一个TCI状态；处理模块102，用于基于至少一个TCI状态，确定是否监测至少两个搜索空间集的PDCCH候选资源；和/或，基于至少一个TCI状态，确定监测至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为一个TCI状态；处理模块102，用于响应于第三信息所指示的TCI状态为一个TCI状态，确定停止监测至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，基于至少一个TCI状态，处理模块102，用于基于映射关系以及第三信息所指示的至少一个TCI状态，监测至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为多个TCI状态；处理模块102，用于基于映射关系和多个TCI状态，分别监测至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为一个TCI状态；处理模块102，用于基于映射关系和一个TCI状态，监测至少两个搜索空间集中一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为一个TCI状态；处理模块102，用于基于一个TCI状态，监测至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态包括第一TCI状态，第一TCI状态对应的搜索空间集与终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应 的搜索空间集相同；
处理模块102，用于基于映射关系，确定第一TCI状态对应的第一搜索空间集，以及第三TCI状态对应的第二搜索空间集；基于第一TCI状态监测第一搜索空间集的PDCCH候选资源，以及基于第三TCI状态监测所述第二搜索空间集的PDCCH候选资源。
一种实施方式中，第二信息通过如下至少一种方式指示至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
指示至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
指示至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
指示至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
一种实施方式中，第二信息包括以下至少一项：
RRC；
MAC-CE；
DCI。
一种实施方式中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一种实施方式中，MAC-CE用于指示至少一个TCI状态，至少一个TCI状态对应所述DCI中承载的TCI状态指示域中的一个码点；或MAC-CE用于指示DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，DCI中承载的TCI状态指示域用于指示多个码点中的一个码点。
一种实施方式中，第三信息指示的至少一个TCI状态用于确定PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZPCSI-RS中至少一项的QCL假设；和/或，
所述第三信息指示的至少一个TCI状态用于确定PUCCH、PUSCH、PUCCH和/或PUSCH的DMRS和SRS中至少一项的QCL假设。
一种实施方式中，TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图14是根据一示例性实施例示出的一种TCI状态的确定装置框图。参照图14，该装置包括发送模块201。其中，TCI状态的确定装置200应用于网络设备中。
发送模块201，用于向终端发送第一信息，第一信息用于使终端确定具有链接关系的至少两个搜索空间集；
发送模块201，还用于向终端发送第二信息，第二信息用于使终端确定至少两个搜索空间集与TCI状态之间的映射关系。
一种实施方式中，发送模块201，用于向终端发送第三信息，第三信息用于指示至少一个TCI状态，至少一个TCI状态用于指示终端是否监测至少两个搜索空间集的PDCCH候选资源；和/或，至少一个TCI状态用于指示终端监测至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为一个TCI状态，一个TCI状态用于指示终端停止监测至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为多个TCI状态，多个TCI状态用于指示终端分别监测至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为一个TCI状态，一个TCI状态用于指示终端监测至少两个搜索空间集中所述一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态为一个TCI状态，一个TCI状态用于指示终端监测至少两个搜索空间集的PDCCH候选资源。
一种实施方式中，第三信息所指示的TCI状态包括第一TCI状态，第一TCI状态对应的搜索空间集与终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；第一TCI状态用于确定所述终端监测第一TCI状态对应的第一搜索空间集的PDCCH候选资源。
一种实施方式中，第二信息通过如下至少一种方式指示至少两个搜索空间集与TCI状态之间的映射关系：
指示至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
指示至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
指示至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
一种实施方式中，第二信息包括以下至少一项：
无线资源控制信令RRC；
媒体接入控制控制单元MAC-CE；
下行控制信息DCI。
一种实施方式中，第三信息包括以下至少一项：
MAC-CE；
DCI。
一种实施方式中，MAC-CE用于指示至少一个TCI状态，至少一个TCI状态对应DCI中承载的TCI状态指示域中的一个码点；或MAC-CE用于指示DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，DCI中承载的TCI状态指示域用于指示多个码点中的一个码点。
一种实施方式中，第三信息指示的至少一个TCI状态用于确定PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的DMRS和NZPCSI-RS中至少一项的QCL假设；和/或，第三信息指示的至少一个TCI状态用于确定PUCCH、PUSCH、PUCCH和/或PUSCH的DMRS和SRS中至少一项的QCL假设。
一种实施方式中，TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
其中，需要说明的是，本公开实施例涉及的TCI的确定装置100和TCI的确定装置200中涉及的各个模块/单元，仅是进行示例性说明，并不引以为限。例如，本公开实施例中的TCI的确定装置100还可以包括发送单元。TCI的确定装置200还可以包括接收单元和/或处理单元。其中，TCI的确定装置100和TCI的确定装置200中所包括的各单元之间可以进行交互，也可以与其他网元设备进行交互。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图15是根据一示例性实施例示出的一种TCI的确定装置的框图。例如，装置300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图15，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例 包括用于在装置300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理***，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件308包括一个前置摄像头和/或后置摄像头。当装置300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜***或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和***接口模块之间提供接口，上述***接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300 可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理***的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由装置300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图16是根据一示例性实施例示出的一种TCI的确定装置的框图。例如，装置400可以被提供为一网络设备。参照图16，装置400包括处理组件422，其进一步包括一个或多个处理器，以及由存储器432所代表的存储器资源，用于存储可由处理组件422的执行的指令，例如应用程序。存储器432中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件422被配置为执行指令，以执行上述方法。
装置400还可以包括一个电源组件426被配置为执行装置400的电源管理，一个有线或无线网络接口450被配置为将装置400连接到网络，和一个输入输出(I/O)接口458。装置400可以操作基于存储在存储器432的操作***，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器432，上述指令可由装置400的处理组件422执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，本公开中涉及到的“响应于”“如果”等词语的含义取决于语 境以及实际使用的场景，如在此所使用的词语“响应于”可以被解释成为“在……时”或“当……时”或“如果”或“若”。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利范围来限制。

Claims (34)

  1. 一种传输配置指示状态的确定方法，其特征在于，应用于终端，所述方法包括：
    接收网络设备发送的第一信息，基于所述第一信息确定具有链接关系的至少两个搜索空间集；
    接收所述网络设备发送的第二信息，基于所述第二信息确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的第三信息，所述第三信息用于指示至少一个TCI状态；
    基于所述至少一个TCI状态，确定是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源；和/或，
    基于所述至少一个TCI状态，确定监测所述至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源。
  3. 根据权利要求2所述的方法，其特征在于，所述第三信息所指示的TCI状态为一个TCI状态；
    所述基于所述至少一个TCI状态，确定是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源，包括：
    响应于所述第三信息所指示的TCI状态为一个TCI状态，确定停止监测所述至少两个搜索空间集的PDCCH候选资源。
  4. 根据权利要求2所述的方法，其特征在于，所述基于所述至少一个TCI状态，确定监测所述至少两个搜索空间集中至少一个第一搜索空间集的PDCCH候选资源，包括：
    基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源。
  5. 根据权利要求4所述的方法，其特征在于，所述第三信息所指示的TCI状态为多个TCI状态；
    所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：
    基于所述映射关系和所述多个TCI状态，分别监测所述至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
  6. 根据权利要求4所述的方法，其特征在于，所述第三信息所指示的TCI状态为一个TCI状态；
    所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：
    基于所述映射关系和所述一个TCI状态，监测所述至少两个搜索空间集中所述一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
  7. 根据权利要求4所述的方法，其特征在于，所述第三信息所指示的TCI状态为一个TCI状态；
    所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：
    基于所述一个TCI状态，监测所述至少两个搜索空间集的PDCCH候选资源。
  8. 根据权利要求4所述的方法，其特征在于，所述第三信息所指示的TCI状态包括第一TCI状态，所述第一TCI状态对应的搜索空间集与所述终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；
    所述基于所述映射关系以及所述第三信息所指示的至少一个TCI状态，监测所述至少两个搜索空间集中的至少一个第一搜索空间集的PDCCH候选资源，包括：
    基于所述映射关系，确定所述第一TCI状态对应的第一搜索空间集，以及所述第三TCI状态对应的第二搜索空间集；
    基于所述第一TCI状态监测所述第一搜索空间集的PDCCH候选资源，以及基于所述第三TCI状态监测所述第二搜索空间集的PDCCH候选资源。
  9. 根据权利要求1至8中任意一项所述的方法，其特征在于，所述第二信息通过如下至少一种方式指示所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
    指示所述至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
    指示所述至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
    指示所述至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
  10. 根据权利要求1至9中任意一项所述的方法，所述第二信息包括以下至少一项：
    无线资源控制信令RRC；
    媒体接入控制控制单元MAC-CE；
    下行控制信息DCI。
  11. 根据权利要求2至10中任意一项所述的方法，第三信息包括以下至少一项：
    MAC-CE；
    DCI。
  12. 根据权利要求11所述的方法，其特征在于，
    所述MAC-CE用于指示至少一个TCI状态，所述至少一个TCI状态对应所述DCI中承载的TCI状态指示域中的一个码点；
    或所述MAC-CE用于指示所述DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，所述DCI中承载的TCI状态指示域用于指示所述多个码点中的一个码点。
  13. 根据权利要求2至12中任意一项所述的方法，其特征在于，第三信息指示的至少一个TCI状态用于确定物理下行共享信道PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP信道状态信息参考信号CSI-RS中至少一项的准共址QCL假设；和/或，
    所述第三信息指示的至少一个TCI状态用于确定物理上行控制信道PUCCH、物理上行共享信道PUSCH、PUCCH和/或PUSCH的DMRS和探测参考信号SRS中至少一项的QCL假设。
  14. 根据权利要求1至13中任意一项所述的方法，其特征在于，所述TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
  15. 一种传输配置指示状态的确定方法，其特征在于，应用于网络设备，所述方法包括：
    向终端发送第一信息，所述第一信息用于指示所述终端确定具有链接关系的至少两个搜索空间集；
    向所述终端发送第二信息，所述第二信息用于指示所述终端确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第三信息，所述第三信息用于指示至少一个TCI状态，所述至少一个TCI状态用于指示所述终端是否监测所述至少两个搜索空间集的物理下行控制信道PDCCH候选资源；和/或，
    所述至少一个TCI状态用于指示所述终端监测至少两个搜索空间集中至少一个第一搜索空间集的物理下行控制信道PDCCH候选资源。
  17. 根据权利要求16所述的方法，其特征在于，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端停止监测所述至少两个搜索空间集的PDCCH候选资源。
  18. 根据权利要求16所述的方法，其特征在于，所述第三信息所指示的TCI状态为多个TCI状态，所述多个TCI状态用于指示所述终端分别监测所述至少两个搜索空间集中每一搜索空间集的PDCCH候选资源。
  19. 根据权利要求16所述的方法，其特征在于，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端监测所述至少两个搜索空间集中所述一个TCI状态所对应的第一搜索空间集的PDCCH候选资源。
  20. 根据权利要求16所述的方法，其特征在于，所述第三信息所指示的TCI状态为一个TCI状态，所述一个TCI状态用于指示所述终端监测所述至少两个搜索空间集的PDCCH候选资源。
  21. 根据权利要求16所述的方法，其特征在于，所述第三信息所指示的TCI状态包括第一TCI状态，所述第一TCI状态对应的搜索空间集与所述终端当前正在使用的第二TCI状态和第三TCI状态中的第二TCI状态对应的搜索空间集相同；所述第一TCI状态用于确定所述终端监测所述第一TCI状态对应的第一搜索空间集的PDCCH候选资源。
  22. 根据权利要求15至21中任意一项所述的方法，其特征在于，所述第二信息通过如下至少一种方式指示所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系：
    指示所述至少两个搜索空间集中各搜索空间集分别对应的一个或多个TCI状态；
    指示所述至少两个搜索空间集分别关联的控制资源集分别对应的一个或多个TCI状态；
    指示所述至少两个搜索空间集分别关联的控制资源集所属控制资源集组或控制资源集池索引分别对应的一个或多个TCI状态。
  23. 根据权利要求15至22中任意一项所述的方法，所述第二信息包括以下至少一项：
    无线资源控制信令RRC；
    媒体接入控制控制单元MAC-CE；
    下行控制信息DCI。
  24. 根据权利要求16至23中任意一项所述的方法，第三信息包括以下至少一项：
    MAC-CE；
    DCI。
  25. 根据权利要求24所述的方法，其特征在于，
    所述MAC-CE用于指示至少一个TCI状态，所述至少一个TCI状态对应所述DCI中承载的TCI状态指示域中的一个码点；
    或所述MAC-CE用于指示所述DCI中承载的TCI状态指示域中的多个码点分别对应的至少一个TCI状态，所述DCI中承载的TCI状态指示域用于指示所述多个码点中的一个码点。
  26. 根据权利要求16至25中任意一项所述的方法，其特征在于，第三信息指示的至少一个TCI状态用于确定物理下行共享信道PDSCH、PDCCH、与PDCCH关联的控制资源集、PDSCH和/或PDCCH的解调参考信号DMRS和非零功率NZP信道状态信息参考信号CSI-RS中至少一项的准共址QCL假设；和/或，
    所述第三信息指示的至少一个TCI状态用于确定物理上行控制信道PUCCH、物理上行共享信道PUSCH、PUCCH和/或PUSCH的DMRS和探测参考信号SRS中至少一项的QCL假设。
  27. 根据权利要求15至26中任意一项所述的方法，其特征在于，所述TCI状态包括上下行联合TCI状态，和/或，下行TCI状态。
  28. 一种传输配置指示状态的确定装置，其特征在于，应用于终端，所述装置包括：
    接收模块，用于接收网络设备发送的第一信息，基于所述第一信息确定具有链接关系的至少两个搜索空间集；
    接收模块，还用于接收所述网络设备发送的第二信息，基于所述第二信息确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
  29. 一种传输配置指示状态的确定装置，其特征在于，应用于网络设备，所述装置包括：
    发送模块，用于向终端发送第一信息，所述第一信息用于使所述终端确定具有链接关系的至少两个搜索空间集；
    所述发送模块，还用于向所述终端发送第二信息，所述第二信息用于使所述终端确定所述至少两个搜索空间集与传输配置指示TCI状态之间的映射关系。
  30. 一种传输配置指示状态的确定装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至14中任意一项所述的方法。
  31. 一种传输配置指示状态的确定装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求15至27中任意一项所述的方法。
  32. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行权利要求1至14中任意一项所述的方法。
  33. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行权利要求15至27中任意一项所述的方法。
  34. 一种通信***，包括终端和网络设备，其中，
    所述终端用于执行如权利要求1至14中任意一项所述的方法；
    所述网络设备用于执行如权利要求15至27中任意一项所述的方法。
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