WO2022077309A1 - 无线通信方法、装置和系统 - Google Patents

无线通信方法、装置和系统 Download PDF

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Publication number
WO2022077309A1
WO2022077309A1 PCT/CN2020/121045 CN2020121045W WO2022077309A1 WO 2022077309 A1 WO2022077309 A1 WO 2022077309A1 CN 2020121045 W CN2020121045 W CN 2020121045W WO 2022077309 A1 WO2022077309 A1 WO 2022077309A1
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WIPO (PCT)
Prior art keywords
tci
control information
tci state
pdcch
monitoring
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Ceased
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PCT/CN2020/121045
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English (en)
French (fr)
Inventor
陈哲
张磊
张健
蒋琴艳
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Fujitsu Ltd
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Fujitsu Ltd
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Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to EP20957089.4A priority Critical patent/EP4231564A4/en
Priority to JP2023521302A priority patent/JP7818584B2/ja
Priority to KR1020237011628A priority patent/KR20230061531A/ko
Priority to CN202080105346.1A priority patent/CN116250194B/zh
Priority to PCT/CN2020/121045 priority patent/WO2022077309A1/zh
Publication of WO2022077309A1 publication Critical patent/WO2022077309A1/zh
Priority to US18/130,971 priority patent/US20230269753A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0026—Division using four or more dimensions, e.g. beam steering or quasi-co-location [QCL]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH

Definitions

  • This application relates to the field of communications.
  • NR New Radio, New Radio introduces a high-frequency communication method in order to increase the frequency resources available to the communication system, thereby increasing the system capacity.
  • NR Release 15 introduces an indication method for the QCL (quasi-collocation, quasi-co-site) parameter of PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel).
  • QCL Quadsi-collocation, quasi-co-site parameter of PDCCH
  • Physical Downlink Control Channel Physical Downlink Control Channel
  • CORESET Control Resource Set
  • the QCL parameters of the antenna port of the PDCCH DM-RS are determined by RRC (Radio Resource Control, Radio Resource Control) signaling and MAC- CE (Media Access Control-Control Element, Media Access Control-Control Element) signaling indicates.
  • RRC Radio Resource Control
  • Radio Resource Control Radio Resource Control
  • MAC- CE Media Access Control-Control Element, Media Access Control-Control Element
  • the MAC-CE can use to activate one of the TCI states.
  • TCI state is activated
  • the reference signal corresponding to the antenna port of the DM-RS of the PDCCH and the activated TCI state is QCL (quasi-colocated).
  • NR Release 15 also introduced an indication method for the QCL parameters of PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).
  • PDSCH Physical Downlink Shared Channel
  • the scheduling DCI format Downlink Control Information format
  • the PDSCH The QCL parameter is determined by the TCI state indicated by the TCI field of the DCI format; if the scheduled DCI format of a PDSCH does not contain the TCI field, the QCL parameter of the PDSCH is determined by the CORESET corresponding to the received DCI format (PDCCH). Determined by the applied TCI status or QCL assumptions.
  • the NR system supports center transmit frequencies up to 52.6GHz.
  • the signal is easily blocked due to its poor diffraction ability.
  • This channel quality degradation due to occlusion is very unfavorable for the URLLC (Ultra-Relaible and Low Latency Communication) service.
  • URLLC Ultra-Relaible and Low Latency Communication
  • the existing beam failure recovery mechanism it takes tens of milliseconds at the fastest to restore the communication link, while the communication delay requirement of URLLC is generally far less than tens of milliseconds.
  • the channel corresponding to the high-frequency downlink may be deteriorated instantaneously.
  • the time required by the existing recovery mechanism is too long to meet the delay requirement of the URLLC service.
  • a feasible way is to send the downlink control information in a spatial diversity manner. That is to say, the same downlink control information can reach the UE (User Equipment, user equipment) via different airspace paths or via different TRPs (transmission and reception point, transceiver nodes). In this way, when one path is blocked, other paths can still continue to work, thereby ensuring low latency and high reliability of downlink control information.
  • UE User Equipment
  • TRPs transmission and reception point, transceiver nodes
  • the downlink control information cannot be determined by the existing mechanism
  • the TCI state associated with the channel (or signal) triggered by the message More specifically, in this case, the downlink control information is associated with two TCI states, and the prior art cannot determine the TCI associated with the two TCI states associated with the above downlink control information and the PDSCH scheduled by the above downlink control information. relationship between states.
  • the embodiments of the present application provide a wireless communication method, device and system, so as to avoid the problem of system performance degradation caused by unclear TCI states of channels or signals.
  • a wireless communication method includes:
  • the terminal device receives control information, the control information triggers a channel or signal, the reception (reception) or monitoring (monitoring) of the control information is related to the two TCI states, and the DCI format corresponding to the control information Does not contain the TCI field;
  • the terminal device transmits or receives the channel or signal according to the two TCI states or according to one of the two TCI states.
  • a wireless communication method includes:
  • the network device sends control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes the TCI field.
  • a wireless communication method comprising:
  • the terminal device receives control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes the TCI field.
  • a wireless communication device comprising:
  • a receiving unit which receives control information, the control information triggers a channel or signal, the reception or monitoring of the control information is related to the two TCI states, and the control information corresponds to the DCI format does not contain the TCI field;
  • a processing unit that transmits or receives the channel or signal according to the two TCI states or according to one of the two TCI states.
  • a wireless communication device comprising:
  • a sending unit which sends control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes a TCI field.
  • a wireless communication device comprising:
  • a receiving unit which receives control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes a TCI field.
  • One of the beneficial effects of the embodiments of the present application is that: on the one hand, when a channel or signal is triggered by control information (not including the TCI field), the TCI state of the channel or signal is determined by the TCI state associated with the control information. Through this method, the mapping relationship between the two TCI states associated with the control information and the TCI state of the signal or channel can be determined, so that the TCI state of the channel or signal is not ambiguous, and the method can reduce the number of TCI states indicated in the control information. Overhead due to the TCI status of the channel or signal.
  • the control information contains the TCI field.
  • control information can always include the TCI field, and the TCI state of the signal or channel triggered by the control information is indicated by the TCI field contained therein, so that the TCI state of the signal or channel is clarified, and the TCI state of the signal or channel is clarified.
  • the TCI status indication of this signal or channel is more flexible.
  • FIG. 1 is a schematic diagram of a wireless communication method according to an embodiment of the first aspect of the present application
  • FIG. 2 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of a single TCI scheduled by the PDCCH;
  • 3 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of the single TCI scheduled by the PDCCH;
  • 4 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of the single TCI scheduled by the PDCCH;
  • 5 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of the single TCI scheduled by the PDCCH;
  • FIG. 6 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of a single TCI scheduled by the PDCCH;
  • FIG. 7 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of multiple TCIs scheduled by the PDCCH;
  • FIG. 8 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the multi-TCI PDSCH scheduled by the PDCCH;
  • FIG. 9 is a schematic diagram of a wireless communication method according to an embodiment of the second aspect of the present application.
  • Figure 10 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of the single TCI scheduled by the PDCCH;
  • 11 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of the multi-TCI scheduled by the PDCCH;
  • FIG. 12 is a schematic diagram of a wireless communication method according to an embodiment of the third aspect of the present application.
  • 13 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the single-TCI PDSCH scheduled by the PDCCH;
  • FIG. 14 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of multiple TCIs scheduled by the PDCCH;
  • 15 is a schematic diagram of a wireless communication device according to an embodiment of the fourth aspect of the present application.
  • 16 is a schematic diagram of a wireless communication device according to an embodiment of the fifth aspect of the present application.
  • FIG. 17 is a schematic diagram of a wireless communication apparatus according to an embodiment of the sixth aspect of the present application.
  • FIG. 18 is a schematic diagram of a communication system according to an embodiment of the seventh aspect of the present application.
  • FIG. 19 is a schematic diagram of a terminal device according to an embodiment of the seventh aspect of the present application.
  • FIG. 20 is a schematic diagram of a network device according to an embodiment of the seventh aspect of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of numelation, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be referred to by these terms restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items.
  • the terms “comprising”, “including”, “having”, etc. refer to the presence of stated features, elements, elements or components, but do not preclude the presence or addition of one or more other features, elements, elements or components.
  • the term "communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Long Term Evolution Enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access) and so on.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Enhanced
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to communication protocols at any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network devices may include but are not limited to the following devices: Base Station (BS, Base Station), Access Point (AP, Access Point), Transceiver Node (TRP, Transmission Reception Point), broadcast transmitter, Mobile Management Entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.
  • BS Base Station
  • AP Access Point
  • TRP Transmission Reception Point
  • MME Mobile Management Entity
  • gateway server
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (eg femto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low power node eg femto, pico, etc.
  • base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "User Equipment” refers to a device that accesses a communication network through a network device and receives network services, and may also be called “Terminal Equipment” (TE, Terminal Equipment).
  • a terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a user, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, etc. Wait.
  • the terminal device may include but is not limited to the following devices: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, etc.
  • Cellular Phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine type communication device
  • laptop computer Cordless phones, smartphones, smart watches, digital cameras, etc.
  • the terminal device may also be a machine or device that performs monitoring or measurement, such as but not limited to: Machine Type Communication (MTC, Machine Type Communication) terminals, In-vehicle communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • An embodiment of the present application provides a wireless communication method, which is described from the side of a terminal device.
  • FIG. 1 is a schematic diagram of a wireless communication method according to an embodiment of the present application. Please refer to FIG. 1. The method includes:
  • the terminal device receives control information, the control information triggers a channel or signal, the reception (reception) or monitoring (monitoring) of the control information is related to two TCI states, and corresponding to the control information DCI format does not contain the TCI field;
  • the terminal device sends or receives the channel or signal according to the two TCI states or according to one of the two TCI states.
  • the TCI state of the channel or signal is determined by the TCI state associated with the control information.
  • the method can determine the mapping relationship between the two TCI states associated with the control information and the TCI state of the signal or channel, so as to avoid the TCI state of the channel or signal being ambiguous, and the method can reduce the number of TCI states in the control information. Overhead incurred to indicate the TCI status of this channel or signal.
  • the above-mentioned channel or signal is related to at least one of the above-mentioned two TCI states.
  • the terminal device can transmit or receive the channel or signal according to the two TCI states or according to one of the two TCI states.
  • one of the above two TCI states is the first TCI state indicated by the MAC-CE command in the TCI states of the control resource set (CORESET) used for receiving or monitoring the above control information.
  • the terminal device sends or receives the above-mentioned channel or signal according to the first TCI state.
  • the TCI state of the channel or signal triggered by the above control information is determined by the first TCI state indicated by the MAC-CE signaling. Thereby, the TCI state of the above-mentioned channel or signal can be flexibly changed.
  • one of the above-mentioned two TCI states is the TCI state with the lowest ID among the TCI states of the control resource set (CORESET) used for receiving or monitoring the above-mentioned control information.
  • the terminal device transmits or receives the above-mentioned channel or signal according to the TCI state of the lowest ID.
  • the TCI state of the channel/signal triggered by the above control information is determined according to the TCI state with the lowest associated ID. Therefore, the TCI state of the above-mentioned channel or signal can be directly determined through the TCI state ID, thereby avoiding additional signaling overhead.
  • one of the above two TCI states is a TCI state applied to the first control resource set indicated by RRC signaling in the two control resource sets used for receiving or monitoring the above control information.
  • the terminal device sends or receives the above-mentioned channel or signal according to the TCI state.
  • the TCI state of the channel or signal triggered by the above control information is determined by the TCI state of the first CORESET indicated by the RRC signaling. Thereby, the TCI state of the above-mentioned channel or signal can be flexibly changed.
  • one of the above two TCI states is a TCI state applied to the control resource set with the lowest ID among the two control resource sets for receiving or monitoring the above control information.
  • the terminal device sends or receives the above-mentioned channel or signal according to the TCI state.
  • the TCI state of the channel or signal triggered by the above control information is determined by the TCI state of the relevant CORESET with the lowest ID. Therefore, the TCI state of the above-mentioned channel or signal can be directly determined by the ID of the associated CORESET, avoiding additional signaling overhead.
  • one of the above two TCI states is a TCI state corresponding to the first search space set indicated by RRC signaling in the two search space sets used for receiving or monitoring the above control information.
  • the terminal device sends or receives the above-mentioned channel or signal according to the TCI state.
  • the TCI state of the channel or signal triggered by the above control information is determined by the TCI state of the first search space set indicated by the RRC signaling. Thereby, the TCI state of the above-mentioned channel or signal can be flexibly changed.
  • one of the above two TCI states is a TCI state corresponding to the search space set with the lowest ID in the two search space sets for receiving or monitoring the above control information.
  • the terminal device sends or receives the above-mentioned channel or signal according to the TCI state.
  • the TCI state of the channel or signal triggered by the above control information is determined by the TCI state of the relevant search space set with the lowest ID. Therefore, the TCI state of the above-mentioned channel or signal can be directly determined by the ID of the associated search space set, avoiding additional signaling overhead.
  • one of the above-mentioned two TCI states is a TCI state applied to the time-frequency resource used for receiving or monitoring the above-mentioned control information.
  • the terminal device sends or receives the above-mentioned channel or signal according to the TCI state.
  • the TCI state of the channel or signal triggered by the control information is determined by receiving or monitoring the time-frequency resource corresponding to the above-mentioned control information. Therefore, the TCI state of the above channel or signal can be directly determined through the above time-frequency resource, thereby avoiding additional signaling overhead.
  • the time-frequency resource used for receiving or monitoring control information may be the earliest symbol used for receiving or monitoring control information; it may also be the lowest index (index) used for receiving or monitoring control information. ) of the PRB (Physical Recourse Block, physical resource block); it may also be the PRB with the lowest index (index) in the earliest symbol used for the reception or monitoring of the control information.
  • PRB Physical Recourse Block, physical resource block
  • the above-mentioned channels or signals are downlink channels or signals, such as PDSCH or CSI-RS (Channel State Information-Reference Signal, channel state information reference signal), etc.; in some embodiments Among them, the above channel or signal is an uplink channel or signal, such as PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel), PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel), and/or SRS (Sounding Reference Signal, detection reference signal) etc.
  • PUSCH Physical Uplink Shared Channel, Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • SRS Sounding Reference Signal, detection reference signal
  • the PDSCH is related to a first TCI state, and the first TCI state may be at least one of the following:
  • the TCI state applied to the time-frequency resources used to receive or monitor the above control information is the TCI state applied to the time-frequency resources used to receive or monitor the above control information.
  • the time-frequency resource used for the reception or monitoring of the control information may be the earliest symbol used for the reception or monitoring of the control information, or the lowest index used for the reception or monitoring of the control information (index) PRB, or the PRB with the lowest index (index) within the earliest symbol used for reception or monitoring of the control information.
  • index index
  • the present application is not limited to this.
  • the PDSCH is also related to a second TCI state, and the second TCI state may be a TCI state other than the foregoing first TCI state among the foregoing two TCI states.
  • the second TCI state is determined by the MAC - The second TCI state indicated by the CE command.
  • the first TCI state is the TCI state with the lowest ID in the TCI states of the control resource set (CORESET) used to receive or monitor the control information
  • the second TCI state is used to receive or monitor the control information.
  • the above-mentioned channel or signal is related to two TCI states, for example, a scenario of multi-TRP PDSCH.
  • the terminal device may determine, according to RRC signaling or the DCI field of the above-mentioned DCI format, whether to send or receive the above-mentioned channel or signal according to the above-mentioned two TCI states, or to send or receive the above-mentioned channel or signal according to one of the above-mentioned two TCI states.
  • the above channels or signals will be received.
  • the above-mentioned RRC signaling is used to indicate whether the above-mentioned channel or signal is related to one TCI state or two TCI states.
  • the DCI field of the above-mentioned DCI format may be the TDRA (Time Domain Resource Allocation, time domain resource allocation) field of the above-mentioned DCI format.
  • TDRA Time Domain Resource Allocation, time domain resource allocation
  • a time offset (time offset) between the above-mentioned control information and the above-mentioned channel or signal is greater than or equal to a predefined time period (pre-determined time period), for example, the above-mentioned time offset is greater than or equal to Equal to timeDurationForQCL.
  • the terminal device can determine the QCL parameter of the above channel or signal according to the QCL parameter associated with the above control information.
  • timeDurationForQCL you can refer to related technologies, and the description is omitted here.
  • FIG. 2 is a schematic diagram of a mapping relationship between a TCI state of a PDCCH and a TCI state of a PDSCH of a single TCI scheduled by the PDCCH.
  • the UE receives a PDCCH (control information) associated with two TCI states in time slot n, and the PDCCH schedules one PDSCH (channel or signal).
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH does not include the TCI field;
  • the search space corresponding to the PDCCH is SS#1;
  • the CORESET corresponding to the search space SS#1 is CORESET#1;
  • the CORESET#1 is activated by the MAC-CE activation signaling
  • Two TCI states namely TCI#1 and TCI#2, wherein the first TCI state activated by the MAC-CE activation signaling is TCI#1, and the second TCI state activated by the MAC-CE activation signaling is TCI# 2;
  • the TCI state applied in the first symbol of time slot n is TCI #1
  • the TCI state applied in the second symbol of time slot n is TCI #2.
  • the UE may determine that the PDSCH is associated with a TCI state according to the following method 1 or method 2:
  • Method 1 Before the UE receives the above-mentioned PDCCH and PDSCH, the UE receives an RRC signaling, and the UE determines that the above-mentioned PDSCH is associated with a TCI state according to the RRC signaling;
  • Method 2 The UE determines that the above PDSCH is associated with a TCI state according to the TDRA field in the DCI format corresponding to the above PDCCH.
  • the UE may determine the TCI state of the above PDSCH according to the following method:
  • Method #1-1 Determine the TCI state of the PDSCH according to the first TCI state used to receive the above-mentioned PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of the CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the first TCI state (TCI#1) activated by the MAC-CE for the CORESET#1.
  • Method #1-2 Determine the TCI state of the PDSCH according to the second TCI state used to receive the above-mentioned PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the second TCI state (TCI#2) activated by the MAC-CE for CORESET#1.
  • Method #2-1 Determine the TCI state of the PDSCH according to the TCI state of the smallest ID for receiving the above-mentioned PDCCH. For example, the reception of the above PDCCH is based on the TCI state of the CORESET#1 corresponding to the above PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#1) with the smallest ID activated by the MAC-CE for CORESET#1.
  • Method #2-2 Determine the TCI state of the PDSCH according to the TCI state used to receive the maximum ID of the PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of the CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#2) with the largest ID activated by the MAC-CE for CORESET#1.
  • Method #3-1 Determine the TCI state of the PDSCH according to the TCI state applied for receiving the earliest symbol of the PDCCH.
  • the earliest received symbol of the PDCCH is the first symbol of time slot n
  • the TCI state of the PDSCH is determined by the TCI state (TCI#1) applied by the PDCCH to the symbol.
  • Method #3-2 Determine the TCI state of the PDSCH according to the TCI state applied for the latest symbol for receiving the above-mentioned PDCCH.
  • the latest received symbol of the PDCCH is the second symbol of the time slot n
  • the TCI state of the PDSCH is determined by the TCI state (TCI#2) applied by the PDCCH on this symbol.
  • FIG. 3 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the single-TCI PDSCH scheduled by the PDCCH.
  • the UE receives a PDCCH (control information) in time slot n, and the PDCCH schedules a PDSCH (channel or signal).
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH does not include the TCI field;
  • the search space corresponding to the PDCCH is SS#1;
  • the CORESET corresponding to the search space SS#1 is CORESET#1;
  • the CORESET#1 is activated by the MAC-CE activation signaling
  • Two TCI states namely TCI#1 and TCI#2, wherein the first TCI state activated by the MAC-CE activation signaling is TCI#1, and the second TCI state activated by the MAC-CE activation signaling is TCI# 2;
  • CORESET#1 its frequency domain resources are divided into two parts, wherein the TCI state applied to the higher frequency part is TCI#1, and the TCI state applied to the lower frequency part is TCI #2.
  • the UE may determine that the PDSCH is associated with a TCI state according to the following method 1 or method 2:
  • Method 1 Before the UE receives the above-mentioned PDCCH and PDSCH, the UE receives an RRC signaling, and the UE determines that the above-mentioned PDSCH is associated with a TCI state according to the RRC signaling;
  • Method 2 The UE determines that the above PDSCH is associated with a TCI state according to the TDRA field in the DCI format corresponding to the above PDCCH.
  • the UE may determine the TCI state of the above PDSCH according to the following method:
  • Method #1-1 Determine the TCI state of the PDSCH according to the first TCI state used to receive the above-mentioned PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of the CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the first TCI state (TCI#1) activated by the MAC-CE for CORESET#1.
  • Method #1-2 Determine the TCI state of the PDSCH according to the second TCI state used to receive the above-mentioned PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the second TCI state (TCI#2) activated by the MAC-CE for CORESET#1.
  • Method #2-1 Determine the TCI state of the PDSCH according to the TCI state of the smallest ID for receiving the above-mentioned PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of the CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#1) with the smallest ID activated by the MAC-CE for CORESET#1.
  • Method #2-2 Determine the TCI state of the PDSCH according to the TCI state used to receive the maximum ID of the PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of the CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#2) with the largest ID activated by the MAC-CE for CORESET#1.
  • Method #3-1 Determine the TCI state (TCI#1) of the PDSCH according to the TCI state (TCI#1) applied to the PRB with the highest corresponding frequency (eg, the PRB with the highest ID) in the frequency domain resources for receiving the PDCCH.
  • Method #3-2 Determine the TCI state (TCI#2) of the PDSCH according to the TCI state (TCI#2) applied to the PRB with the lowest corresponding frequency (eg, the PRB with the lowest ID) in the frequency domain resources for receiving the PDCCH.
  • Method #4 Determine the TCI state (TCI#2) of the PDSCH according to the TCI state (TCI#2) applied to the PRB with the lowest frequency (for example, the PRB with the lowest ID) in the earliest symbol in the time-frequency resource receiving the above-mentioned PDCCH .
  • the earliest received symbol of the PDCCH is the first symbol of time slot n
  • the TCI state of the PDSCH is determined by the TCI state applied to the lowest PRB corresponding to the PDCCH on the symbol (TCI#2).
  • FIG. 2 shows the case of time division multiplexing (TDM)
  • FIG. 3 shows the case of frequency division multiplexing (FDM).
  • FIG. 4 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the single-TCI PDSCH scheduled by the PDCCH.
  • the UE receives a PDCCH (control information) in time slot n, and the PDCCH schedules a PDSCH (channel or signal).
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH does not include the TCI field;
  • the PDCCH includes two parts, namely PDCCH#rep1 and PDCCH#rep2, wherein PDCCH#rep1 and PDCCH#rep2 correspond to the same DCI bits;
  • the search spaces corresponding to PDCCH are respectively are SS#1 and SS#2, where SS#1 is located in the first symbol of time slot n, and SS#2 is located in the third symbol of time slot n.
  • the UE knows SS#1 and SS#2 in advance are related, SS#1 corresponds to the first SS, SS#2 corresponds to the second SS, and the two SSs can receive a repetition corresponding to a PDCCH respectively; according to the configuration of the RRC signaling, the search spaces SS#1 and The CORESET corresponding to SS#2 is CORESET#1; the CORESET#1 activates two TCI states, namely TCI#1 and TCI#2, by the MAC-CE activation signaling.
  • TCI#1 One TCI state is TCI#1, wherein SS#2 corresponds to TCI#1; the second TCI state activated by the MAC-CE activation signaling is TCI#2, wherein SS#1 corresponds to TCI#2;
  • the TCI state applied to the first symbol of slot n is TCI #1, and the TCI state applied to the third symbol of slot n is TCI #2.
  • the UE may determine that the PDSCH is associated with a TCI state according to the following method 1 or method 2:
  • Method 1 Before the UE receives the above-mentioned PDCCH and PDSCH, the UE receives an RRC signaling, and the UE determines that the above-mentioned PDSCH is associated with a TCI state according to the RRC signaling;
  • Method 2 The UE determines that the above PDSCH is associated with a TCI state according to the TDRA field in the DCI format corresponding to the above PDCCH.
  • the UE may determine the TCI state of the above PDSCH according to the following method:
  • Method 1-1 Determine the TCI state of the PDSCH according to the first TCI state used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the first TCI state (TCI#1) activated by the MAC-CE for CORESET#1 .
  • Method 1-2 Determine the TCI state of the PDSCH according to the second TCI state used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the second TCI state (TCI#2) activated by the MAC-CE for CORESET#1 .
  • Method 2-1 Determine the TCI state of the PDSCH according to the TCI state with the smallest ID used to monitor the PDCCH. For example, the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, then the TCI state of the PDSCH is the TCI state (TCI#1) with the smallest ID activated by the MAC-CE for CORESET#1. Decide.
  • Method 2-2 Determine the TCI state of the PDSCH according to the TCI state with the largest ID used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is the TCI state (TCI#2) with the largest ID activated by the MAC-CE for CORESET#1. Decide.
  • Method 3-1 Determine the TCI state of the PDSCH according to the TCI state of the first SS for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two SSs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#1) of the first SS (SS#1) activated by the MAC-CE for CORESET#1 )Decide.
  • Method 3-2 Determine the TCI state of the PDSCH according to the TCI state of the second SS for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two SSs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is the TCI state (TCI#2) of the second SS (SS#2) activated by the MAC-CE for CORESET#1 )Decide.
  • Method 4-1 Determine the TCI state of the PDSCH according to the TCI state of the SS with the smallest ID for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two SSs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is activated by the MAC-CE for the TCI state of the SS with the smallest ID (SS#1) (SS#1). TCI#1) decided.
  • Method 4-2 Determine the TCI state of the PDSCH according to the TCI state of the SS with the largest ID for monitoring the above-mentioned PDCCH.
  • the monitoring of the above PDCCH is based on one of the two SSs corresponding to the above PDCCH, and the TCI state of the PDSCH is activated by the MAC-CE for the TCI state of the SS with the largest ID (SS#2) (SS#2). TCI#2) decided.
  • Method 5-1 Determine the TCI state of the PDSCH according to the TCI state (TCI#1) applied for monitoring the earliest symbol of the PDCCH.
  • TCI#1 the TCI state applied for monitoring the earliest symbol of the PDCCH.
  • the earliest symbol corresponding to the monitoring of the PDCCH is the first symbol of the time slot n
  • the TCI state of the PDSCH is determined by the TCI state applied by the PDCCH to the symbol.
  • Method 5-2 Determine the TCI state of the PDSCH according to the TCI state (TCI#2) applied to the latest symbol used for monitoring the above-mentioned PDCCH.
  • TCI#2 the latest symbol corresponding to the above-mentioned PDCCH monitoring is the third symbol of time slot n
  • the TCIT state of the PDSCH is determined by the TCI state applied by the PDCCH on this symbol.
  • FIG. 5 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the single-TCI PDSCH scheduled by the PDCCH.
  • the UE receives a PDCCH (control information) in time slot n, and the PDCCH schedules a PDSCH (channel or signal).
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH does not include the TCI field; the PDCCH includes two parts, namely PDCCH#rep1 and PDCCH#rep2, wherein PDCCH#rep1 and PDCCH#rep2 correspond to the same DCI bits; the search space corresponding to the PDCCH is SS#1; according to the configuration of the RRC signaling, the search space SS#1 corresponds to CORESET#1 and CORESET#2. For example, the UE knows in advance that CORESET#1 and CORESET#2 are associated, and CORESET#1 corresponds to TCI#2. CORESET#2 corresponds to TCI#1.
  • the UE may determine that the PDSCH is associated with a TCI state according to the following method 1 or method 2:
  • Method 1 Before the UE receives the above-mentioned PDCCH and PDSCH, the UE receives an RRC signaling, and the UE determines that the above-mentioned PDSCH is associated with a TCI state according to the RRC signaling;
  • Method 2 The UE determines that the above PDSCH is associated with a TCI state according to the TDRA field in the DCI format corresponding to the above PDCCH.
  • the UE may determine the TCI state of the above PDSCH according to the following method:
  • Method 2-1 Determine the TCI state of the PDSCH according to the TCI state with the smallest ID used to monitor the PDCCH. For example, the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 and CORESET#2 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is activated by the MAC-CE for CORESET#1 and CORESET#2 with the smallest ID The TCI status (TCI#1) is determined.
  • Method 2-2 Determine the TCI state of the PDSCH according to the TCI state with the largest ID used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 and CORESET#2 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is activated by the MAC-CE for CORESET#1 and CORESET#2 with the largest ID
  • the TCI status (TCI#2) is determined.
  • Method 3-1 Determine the TCI state of the PDSCH according to the TCI state of the first CORESET for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#2) applied to the first CORESET (CORESET#1).
  • Method 3-2 Determine the TCI state of the PDSCH according to the TCI state of the second CORESET for monitoring the above PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#1) applied to the second CORESET (CORESET#2).
  • Method 4-1 Determine the TCI state of the PDSCH according to the TCI state of the CORESET for monitoring the above-mentioned PDCCH with the smallest ID.
  • the monitoring of the above-mentioned PDCCH is based on one of the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#2) applied to the CORESET (CORESET#1) with the smallest ID.
  • Method 4-2 Determine the TCI state of the PDSCH according to the TCI state of the CORESET with the largest ID for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#1) applied to the CORESET (CORESET#2) with the largest ID.
  • Method 5-1 Determine the TCI state of the PDSCH according to the TCI state (TCI#2) applied to the PRB with the lowest frequency (eg, the PRB with the lowest ID) in the frequency domain resource for monitoring the PDCCH.
  • Method 5-2 Determine the TCI state of the PDSCH according to the TCI state (TCI#1) applied to the PRB with the highest frequency (eg, the PRB with the highest ID) in the frequency domain resource for monitoring the PDCCH.
  • FIG. 6 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH of a single TCI scheduled by the PDCCH.
  • the UE receives a PDCCH (control information) in time slot n, and the PDCCH schedules a PDSCH (channel or signal).
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH does not include the TCI field;
  • the PDCCH includes two parts, namely PDCCH#rep1 and PDCCH#rep2, wherein PDCCH#rep1 and PDCCH#rep2 correspond to the same DCI bits;
  • the search spaces corresponding to PDCCH are respectively are SS#1 and SS#2, where SS#1 is located in the first symbol of time slot n, and SS#2 is located in the third symbol of time slot n.
  • the UE knows SS#1 and SS#2 in advance are related, SS#1 corresponds to the first SS, SS#2 corresponds to the second SS, and the two SSs can receive a repetition corresponding to a PDCCH respectively; according to the configuration of the RRC signaling, the search spaces SS#1 and SS#2 corresponds to CORESET#2 and CORESET#1 respectively, for example, for example, RRC signaling indicates that CORESET#1 corresponds to the first CORESET, and CORESET#2 corresponds to the second CORESET; the TCI applied in the first symbol of time slot n The state is TCI#1, and the TCI state applied in the third symbol of slot n is TCI#2.
  • the UE may determine that the PDSCH is associated with a TCI state according to the following method 1 or method 2:
  • Method 1 Before the UE receives the above-mentioned PDCCH and PDSCH, the UE receives an RRC signaling, and the UE determines that the above-mentioned PDSCH is associated with a TCI state according to the RRC signaling;
  • Method 2 The UE determines that the above PDSCH is associated with a TCI state according to the TDRA field in the DCI format corresponding to the above PDCCH.
  • the UE may determine the TCI state of the above PDSCH according to the following method:
  • Method 1-1 Determine the TCI state of the PDSCH according to the first TCI state used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the first TCI state (TCI#1) activated by the MAC-CE for CORESET#1 .
  • Method 1-2 Determine the TCI state of the PDSCH according to the second TCI state used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the second TCI state (TCI#2) activated by the MAC-CE for CORESET#1 .
  • Method 2-1 Determine the TCI state of the PDSCH according to the TCI state with the smallest ID used to monitor the PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is the TCI state (TCI#1) with the smallest ID activated by the MAC-CE for CORESET#1. Decide.
  • Method 2-2 Determine the TCI state of the PDSCH according to the TCI state with the largest ID used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is the TCI state (TCI#2) with the largest ID activated by the MAC-CE for CORESET#1. Decide.
  • Method 3-1 Determine the TCI state of the PDSCH according to the TCI state of the first CORESET for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on the first CORESET among the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#1) applied by CORESET#1.
  • Method 3-2 Determine the TCI state of the PDSCH according to the TCI state of the second CORESET for monitoring the above PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on the second CORESET among the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#2) applied by CORESET#2.
  • Method 4-1 Determine the TCI state of the PDSCH according to the TCI state of the CORESET for monitoring the above-mentioned PDCCH with the smallest ID. For example, the monitoring of the above-mentioned PDCCH is based on the one with the smaller ID among the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#1) applied by CORESET#1.
  • Method 4-2 Determine the TCI state of the PDSCH according to the TCI state of the CORESET with the largest ID for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on the one with the larger ID among the two CORESETs corresponding to the above-mentioned PDCCH, and the TCI state of the PDSCH is determined by the TCI state (TCI#2) applied by the CORESET#2.
  • Method 5-1 Determine the TCI state of the PDSCH according to the TCI state (TCI#1) applied for monitoring the earliest symbol of the PDCCH.
  • TCI#1 the TCI state applied for monitoring the earliest symbol of the PDCCH.
  • the earliest symbol corresponding to the above-mentioned PDCCH monitoring is the first symbol of time slot n
  • the TCI state of the PDSCH is determined by the TCI state applied by the PDCCH to the symbol.
  • Method 5-2 Determine the TCI state of the PDSCH according to the TCI state (TCI#2) applied to the latest symbol used for monitoring the above-mentioned PDCCH.
  • TCI#2 the latest symbol corresponding to the above-mentioned PDCCH monitoring is the third symbol of time slot n, and the TCI state of the PDSCH is determined by the TCI state applied by the PDCCH on this symbol.
  • the PDCCH has repetitions. And, in the example of Figure 4, there are two sets of search spaces and one CORESET, in the example of Figure 5, there are one set of search spaces and two CORESETs, and in the example of Figure 6, there are two sets of search spaces and Two CORESETs.
  • FIG. 7 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the PDSCH with multiple TCIs scheduled by the PDCCH.
  • the UE receives one PDCCH (control information) associated with two TCI states in time slot n, and the PDCCH schedules one PDSCH (channel or signal).
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH does not include the TCI field;
  • the search space corresponding to the PDCCH is SS#1;
  • the CORESET corresponding to the search space SS#1 is CORESET#1;
  • CORESET#1 is activated by the MAC-CE activation signaling for two TCI states, that is, TCI#1 and TCI#2, wherein the first TCI state activated by the MAC-CE activation signaling is TCI#1, and the second TCI state activated by the MAC-CE activation signaling is TCI#2;
  • the TCI state applied in the first symbol of time slot n is TCI #1, and the TCI state applied in the second symbol of time slot n is TCI #2.
  • the UE may determine that the PDSCH is associated with two TCI states according to the following method 1 or method 2:
  • Method 1 Before the UE receives the above-mentioned PDCCH and PDSCH, the UE receives an RRC signaling, and the UE determines that the above-mentioned PDSCH is associated with two TCI states according to the RRC signaling;
  • Method 2 The UE determines that the above PDSCH is associated with two TCI states according to the TDRA field in the DCI format corresponding to the above PDCCH.
  • the UE can determine the TCI state of Rep#1 of the above PDSCH according to the following method:
  • Method 1-1 Determine the TCI state of Rep#1 of the PDSCH according to the first TCI state used for receiving the above-mentioned PDCCH. For example, the reception of the above PDCCH is based on the TCI state of CORESET#1 corresponding to the above PDCCH, and the TCI state of Rep#1 of the PDSCH is determined by the first TCI state (TCI#1) activated by the MAC-CE for CORESET#1.
  • Method 1-2 Determine the TCI state of Rep#1 of the PDSCH according to the second TCI state used to receive the above-mentioned PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is determined by the second TCI state (TCI#2) activated by the MAC-CE for CORESET#1.
  • TCI#2 the second TCI state activated by the MAC-CE for CORESET#1.
  • Method 2-1 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state used to receive the minimum ID of the PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is determined by the TCI state (TCI#1) with the smallest ID activated by the MAC-CE for CORESET#1 .
  • Method 2-2 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state used to receive the maximum ID of the PDCCH. For example, the reception of the above-mentioned PDCCH is based on the TCI state of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is determined by the TCI state (TCI#2) with the largest ID activated by the MAC-CE for CORESET#1 .
  • Method 3-1 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state (TCI#1) applied for receiving the earliest symbol of the PDCCH.
  • TCI#1 the TCI state applied to the symbol by the PDCCH.
  • Method 3-2 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state (TCI#2) applied for receiving the latest symbol of the PDCCH.
  • TCI#2 the latest received symbol of the above-mentioned PDCCH is the second symbol of time slot n
  • the TCI state of Rep#1 of the PDSCH is determined by the TCI state applied to this symbol by the PDCCH.
  • the UE may determine the TCI state of Rep#2 of the above PDSCH according to the following method:
  • the UE can choose between TCI#1 and TCI#2 not to use TCI#1 and TCI#2.
  • the TCI state of Rep#1 of the PDSCH is used as the TCI state of Rep#2 of the PDSCH.
  • the TCI state of Rep#1 of the PDSCH is determined to be TCI#1 according to the aforementioned method 1-1
  • the TCI state of Rep#2 of the PDSCH is determined to be TCI#2.
  • the TCI state of Rep#1 of the PDSCH is determined to be TCI#2 according to the foregoing method 1-2
  • the TCI state of Rep#2 of the PDSCH is determined to be TCI#1.
  • FIG. 7 shows the case of TDM, the case of FDM is similar to TDM, and analogy can be made according to the method of FIG. 3 , and the description is omitted here.
  • FIG. 8 is another schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the multi-TCI PDSCH scheduled by the PDCCH.
  • the UE receives a PDCCH (control information) at slot n, and the PDCCH schedules a PDSCH (channel or signal).
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH does not include the TCI field;
  • the PDCCH includes two parts, namely PDCCH#rep1 and PDCCH#rep2, wherein PDCCH#rep1 and PDCCH#rep2 correspond to the same DCI bits;
  • the search spaces corresponding to PDCCH are respectively are SS#1 and SS#2, where SS#1 is located in the first symbol of time slot n, and SS#2 is located in the third symbol of time slot n.
  • the UE knows SS#1 and SS#2 in advance are related, SS#1 corresponds to the first SS, SS#2 corresponds to the second SS, and the two SSs can receive a repetition corresponding to a PDCCH respectively; according to the configuration of the RRC signaling, the search spaces SS#1 and The CORESET corresponding to SS#2 is CORESET#1; the CORESET#1 activates two TCI states, namely TCI#1 and TCI#2, by the MAC-CE activation signaling.
  • TCI#1 One TCI state is TCI#1, wherein SS#2 corresponds to TCI#1; the second TCI state activated by the MAC-CE activation signaling is TCI#2, wherein SS#1 corresponds to TCI#2;
  • the TCI state applied to the first symbol of slot n is TCI #1, and the TCI state applied to the third symbol of slot n is TCI #2.
  • the UE may determine that the PDSCH is associated with two TCI states according to the following method 1 or method 2:
  • Method 1 Before the UE receives the above-mentioned PDCCH and PDSCH, the UE receives an RRC signaling, and the UE determines that the above-mentioned PDSCH is associated with two TCI states according to the RRC signaling;
  • Method 2 The UE determines that the above PDSCH is associated with two TCI states according to the TDRA field in the DCI format corresponding to the above PDCCH.
  • the UE can determine the TCI state of Rep#1 of the above PDSCH according to the following method:
  • Method 1-1 Determine the TCI state of Rep#1 of the PDSCH according to the first TCI state used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is the first TCI state (TCI state activated by the MAC-CE for CORESET#1) #1) Decide.
  • Method 1-2 Determine the TCI state of Rep#1 of the PDSCH according to the second TCI state used for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is the second TCI state (TCI state activated by the MAC-CE for CORESET#1) #2) Decide.
  • Method 2-1 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state with the smallest ID for monitoring the PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is determined by the MAC-CE for the TCI state with the smallest ID activated by CORESET#1 ( TCI#1) decided.
  • Method 2-2 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state with the largest ID used to monitor the PDCCH. For example, the monitoring of the above-mentioned PDCCH is based on one of the two TCI states of CORESET#1 corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is the TCI state with the largest ID activated by the MAC-CE for CORESET#1 ( TCI#2) decided.
  • Method 3-1 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state of the first SS for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two SSs corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is the TCI state of the first SS (SS#1) activated by the MAC-CE for CORESET#1 (TCI #2) Decided.
  • Method 3-2 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state of the second SS for monitoring the above-mentioned PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two SSs corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is the TCI state of the second SS (SS#2) activated by the MAC-CE for CORESET#1 (TCI#1) decided.
  • Method 4-1 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state of the SS with the smallest ID for monitoring the PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two SSs corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is activated by the MAC-CE for the SS with the smallest ID (SS#1) for CORESET#1
  • the TCI status (TCI#2) is determined.
  • Method 4-2 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state of the SS with the largest ID for monitoring the PDCCH.
  • the monitoring of the above-mentioned PDCCH is based on one of the two SSs corresponding to the above-mentioned PDCCH, and the TCI state of Rep#1 of the PDSCH is activated by the MAC-CE for the SS with the largest ID (SS#2) for CORESET#1
  • the TCI status (TCI#2) is determined.
  • Method 5-1 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state (TCI#1) applied for monitoring the earliest symbol of the PDCCH.
  • TCI#1 the TCI state applied to the symbol by the PDCCH.
  • Method 5-2 Determine the TCI state of Rep#1 of the PDSCH according to the TCI state (TCI#2) applied to the latest symbol used for monitoring the above-mentioned PDCCH.
  • TCI#2 the latest symbol corresponding to the monitoring of the PDCCH is the third symbol of the time slot n
  • the TCI state of Rep#1 of the PDSCH is determined by the TCI state applied by the PDCCH to this symbol.
  • the UE may determine the TCI state of Rep#2 of the above PDSCH according to the following method:
  • the UE can choose between TCI#1 and TCI#2 not to use TCI#1 and TCI#2.
  • the TCI state of Rep#1 of the PDSCH is used as the TCI state of Rep#2 of the PDSCH.
  • the TCI state of Rep#1 of the PDSCH is determined to be TCI#1 according to the aforementioned method 1-1
  • the TCI state of Rep#2 of the PDSCH is determined to be TCI#2.
  • the TCI state of Rep#1 of the PDSCH is determined to be TCI#2 according to the foregoing method 1-2
  • the TCI state of Rep#2 of the PDSCH is determined to be TCI#1.
  • Figure 8 shows the case of two sets of search spaces and one CORESET, the case of one set of search spaces and two CORESETs, and the case of two sets of search spaces and two CORESETs with two sets of search spaces and one CORESET.
  • the situation is similar, and an analogy can be made according to the methods in FIG. 5 and FIG. 6 , and the description is omitted here.
  • FIG. 2 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of each operation can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 2 .
  • the TCI state of the channel or signal can be avoided from being ambiguous, and the overhead caused by indicating the TCI state of the channel or signal in the control information can be reduced.
  • An embodiment of the present application provides a wireless communication method, which is described from the network device side.
  • FIG. 9 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in FIG. 9 , the method includes:
  • the network device sends control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes a TCI field.
  • the DCI format corresponding to the control information includes the TCI field.
  • the above control information triggers a channel or signal.
  • the channel or signal may be a downlink channel or signal, such as PDSCH or CSI-RS; it may also be an uplink channel or signal, such as PUSCH, PUCCH and/or SRS.
  • the present application is not limited to this.
  • the TCI state of the above-mentioned channel or signal is indicated by the above-mentioned TCI field of the DCI format corresponding to the above-mentioned control information. For example, whether the channel or signal is associated with one TCI state or two TCI states is indicated by the TCI field.
  • the control information when one control information triggers a channel or signal, if the control information is associated with two TCI states, the control information includes a TCI field.
  • the above-mentioned control information can always include the TCI field, and the TCI state of the signal or channel triggered by the control information is indicated by the TCI field contained therein, so that the TCI state of the signal or channel is clarified, and the TCI state of the signal or channel is clarified.
  • the indication of the TCI status of the signal or channel is more flexible.
  • control information is related to two TCI states means that the transmission of the control information is related to two TCI states.
  • the DCI format corresponding to the control information includes the TCI field means: the network device sets the parameter tci-PresentInDCI of a control resource set associated with the DCI format to enable; The parameter tci-PresentInDCI of all associated control resource sets is set to enable; or, the network device configures the parameter tci-PresentInDCI-ForFormat1_2 of a control resource set associated with the DCI format; or, the network device configures the DCI format The parameter tci-PresentInDCI-ForFormat1_2 of the associated set of all control resources.
  • FIG. 10 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the single-TCI PDSCH scheduled by the PDCCH.
  • FIG. 10 is described from the perspective of base station transmission, and takes PDSCH as an example.
  • the gNB transmits a PDCCH (control information) at slot n, and the PDCCH schedules a PDSCH (channel or signal), and the PDSCH is associated with a TCI state.
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH includes a TCI field.
  • the DCI format is DCI format 1_1, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, that is, tci-PresentInDCI.
  • tci-PresentInDCI is set to 'enable';
  • the DCI format is DCI format 1_2, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, namely tci-PresentForDCI-Format1-2.
  • the TCI codepoint (codepoint) indicated by the TCI field of the PDCCH includes a TCI state, that is, TCI#3.
  • the search space corresponding to the PDCCH is SS#1; the CORESET corresponding to the search space SS#1 is CORESET#1; the CORESET#1 is activated by the MAC-CE activation signaling to activate two TCI states, namely TCI#1 and TCI #2, wherein the first TCI state activated by the MAC-CE activation signaling is TCI#1, and the second TCI state activated by the MAC-CE activation signaling is TCI#2; The TCI state applied to the first symbol is TCI#1, and the TCI state applied to the second symbol in slot n is TCI#2.
  • the DCI format when the gNB sends a DCI format that schedules PDSCH and the DCI format is associated with two TCI states (or, in other words, when the DCI format is sent via two TRPs), in order to avoid the PDSCH scheduled by the DCI format
  • the TCI status is not clear, the DCI format must contain the TCI field.
  • the TCI field indicates a TCI state, and the TCI state is the TCI state applied to the PDSCH scheduled by the DCI format, that is, TCI#3.
  • FIG. 11 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the multi-TCI PDSCH scheduled by the PDCCH.
  • FIG. 11 is described from the perspective of base station transmission, and takes PDSCH as an example.
  • the gNB transmits a PDCCH (control information) at slot n, and the PDCCH schedules a PDSCH (channel or signal), and the PDSCH is associated with a TCI state.
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH includes a TCI field.
  • the DCI format is DCI format 1_1, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, that is, tci-PresentInDCI.
  • tci-PresentInDCI is set to 'enable';
  • the DCI format is DCI format 1_2, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, namely tci-PresentForDCI-Format1-2.
  • the TCI codepoint (codepoint) indicated by the TCI field of the PDCCH includes two TCI states, namely TCI#3 and TCI#4.
  • the search space corresponding to the PDCCH is SS#1; the CORESET corresponding to the search space SS#1 is CORESET#1; the CORESET#1 is activated by MAC-CE activation signaling to activate two TCI states, namely TCI#1 and TCI #2, wherein the first TCI state activated by the MAC-CE activation signaling is TCI#1, and the second TCI state activated by the MAC-CE activation signaling is TCI#2; The TCI state applied to the first symbol is TCI#1, and the TCI state applied to the second symbol in slot n is TCI#2.
  • the DCI format when the gNB sends a DCI format that schedules PDSCH and the DCI format is associated with two TCI states (or, in other words, when the DCI format is sent via two TRPs), in order to avoid the PDSCH scheduled by the DCI format
  • the TCI status is unclear, the DCI format must contain the TCI field.
  • the TCI field indicates two TCI states, which are the TCI states applied to the PDSCH scheduled by the DCI format, namely TCI#3 and TCI#4.
  • FIG. 9 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto. For example, some other operations can be added, or some of them can be reduced. Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 9 .
  • the TCI state of the signal or channel indicated by the control information is clarified, and the TCI state of the signal or channel is also made clear. instructions are more flexible.
  • An embodiment of the present application provides a wireless communication method, which is described from the side of a terminal device.
  • the method is processing on the terminal device side corresponding to the method of the embodiment of the second aspect, and the same content as the embodiment of the second aspect will not be repeated.
  • FIG. 12 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in FIG. 12 , the method includes:
  • the terminal device receives control information, where the control information is related to two TCI states, and the DCI format corresponding to the control information includes a TCI field.
  • the DCI format corresponding to the control information includes the TCI field.
  • the above control information triggers a channel or signal.
  • the channel or signal may be a downlink channel or signal, such as PDSCH or CSI-RS; it may also be an uplink channel or signal, such as PUSCH, PUCCH and/or SRS.
  • the present application is not limited to this.
  • the TCI state of the above-mentioned channel or signal is indicated by the above-mentioned TCI field of the DCI format corresponding to the above-mentioned control information. For example, whether the channel or signal is associated with one TCI state or two TCI states is indicated by the TCI field.
  • the control information when one control information triggers a channel or signal, if the control information is associated with two TCI states, the control information includes a TCI field.
  • the above-mentioned control information can always include the TCI field, and the TCI state of the signal or channel triggered by the control information is indicated by the TCI field contained therein, so that the TCI state of the signal or channel is clarified, and the TCI state of the signal or channel is clarified.
  • the indication of the TCI status of the signal or channel is more flexible.
  • control information is associated with two TCI states means that the reception or monitoring of the control information is associated with two TCI states.
  • the DCI format corresponding to the control information includes the TCI field means: the terminal device expects that the parameter tci-PresentInDCI of a control resource set associated with the DCI format is set to be enabled; or, the terminal device expects the The parameters tci-PresentInDCI of all control resource sets associated with the DCI format are set to be enabled; or, the terminal device expects the parameter tci-PresentInDCI-ForFormat1_2 of a control resource set associated with the DCI format to be configured; or, The terminal device expects that the parameters tci-PresentInDCI-ForFormat1_2 of all control resource sets associated with the DCI format are configured.
  • FIG. 13 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the single-TCI PDSCH scheduled by the PDCCH.
  • FIG. 13 is described from the perspective of terminal equipment (UE) reception, and takes PDSCH as an example.
  • UE terminal equipment
  • the UE receives a PDCCH (control information) at slot n, and the PDCCH schedules a PDSCH (channel or signal), and the PDSCH is associated with a TCI state.
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH includes a TCI field.
  • the DCI format is DCI format 1_1, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, that is, tci-PresentInDCI.
  • tci-PresentInDCI is set to 'enable';
  • the DCI format is DCI format 1_2, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, namely tci-PresentForDCI-Format1-2.
  • the TCI codepoint (codepoint) indicated by the TCI field of the PDCCH includes a TCI state, that is, TCI#3.
  • the search space corresponding to the PDCCH is SS#1; the CORESET corresponding to the search space SS#1 is CORESET#1; the CORESET#1 is activated by the MAC-CE activation signaling to activate two TCI states, namely TCI#1 and TCI #2, wherein the first TCI state activated by the MAC-CE activation signaling is TCI#1, and the second TCI state activated by the MAC-CE activation signaling is TCI#2; The TCI state applied to the first symbol is TCI#1, and the TCI state applied to the second symbol in slot n is TCI#2.
  • the DCI format when the UE receives a DCI format scheduling PDSCH and the DCI format is associated with two TCI states (or when the DCI format passes through two TRPs), the DCI format must contain the TCI field. That is, the UE expects that the DCI format contains the TCI field. And, in this example, the TCI field indicates a TCI state, and the TCI state is the TCI state applied to the PDSCH scheduled by the DCI format, that is, TCI#3.
  • FIG. 14 is a schematic diagram of the mapping relationship between the TCI state of the PDCCH and the TCI state of the multi-TCI PDSCH scheduled by the PDCCH.
  • FIG. 14 is described from the perspective of terminal equipment (UE) reception, and takes PDSCH as an example.
  • UE terminal equipment
  • the UE receives a PDCCH (control information) at slot n, the PDCCH schedules a PDSCH (channel or signal), and the PDSCH is associated with a TCI state.
  • the scheduling offset between the PDCCH and PDSCH is greater than or equal to timeDurationForQCL.
  • SCS 60 kHz
  • timeDurationForQCL 7 symbols.
  • the DCI format corresponding to the PDCCH includes a TCI field.
  • the DCI format is DCI format 1_1, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, that is, tci-PresentInDCI.
  • tci-PresentInDCI is set to 'enable';
  • the DCI format is DCI format 1_2, and the CORESET (CORESET#1) corresponding to the DCI format is configured with an IE, namely tci-PresentForDCI-Format1-2.
  • the TCI codepoint (codepoint) indicated by the TCI field of the PDCCH includes two TCI states, namely TCI#3 and TCI#4.
  • the search space corresponding to the PDCCH is SS#1; the CORESET corresponding to the search space SS#1 is CORESET#1; the CORESET#1 is activated by the MAC-CE activation signaling to activate two TCI states, namely TCI#1 and TCI #2, wherein the first TCI state activated by the MAC-CE activation signaling is TCI#1, and the second TCI state activated by the MAC-CE activation signaling is TCI#2; The TCI state applied to the first symbol is TCI#1, and the TCI state applied to the second symbol in slot n is TCI#2.
  • the DCI format when the UE receives a DCI format scheduling PDSCH and the DCI format is associated with two TCI states (or when the DCI format passes through two TRPs), the DCI format must contain the TCI field. That is, the UE expects that the DCI format contains the TCI field. And, in this example, the TCI field indicates two TCI states, which are the TCI states applied to the PDSCH scheduled by the DCI format, namely TCI#3 and TCI#4.
  • FIG. 12 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto. For example, some other operations can be added, or some of them can be reduced. Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 12 .
  • the TCI state of the signal or channel indicated by the control information is clarified, and the TCI state of the signal or channel is also made clear. instructions are more flexible.
  • An embodiment of the present application provides a wireless communication apparatus, and the apparatus may be, for example, a terminal device, or one or some components or components configured in the terminal device.
  • FIG. 15 is a schematic diagram of a wireless communication device according to an embodiment of the present application. Since the principle of the device for solving problems is similar to the method of the embodiment of the first aspect, the specific implementation of the device may refer to the implementation of the method of the embodiment of the first aspect. , the same content will not be repeated.
  • the wireless communication apparatus 1500 includes:
  • a receiving unit 1501 which receives control information, the control information triggers a channel or signal, the reception or monitoring of the control information is related to two TCI states, and corresponds to the control information
  • the DCI format does not contain the TCI field
  • a processing unit 1502 that transmits or receives the channel or signal according to the two TCI states or according to one of the two TCI states.
  • the channel or signal is a downlink channel or signal or an uplink channel or signal; the downlink channel or signal is PDSCH or CSI-RS, and the uplink channel or signal is PUSCH, At least one of PUCCH and SRS.
  • one of the two TCI states refers to at least one of the following:
  • the TCI state applied to the time-frequency resource used to receive or monitor the control information is applied to the time-frequency resource used to receive or monitor the control information.
  • the time-frequency resource used for receiving or monitoring the control information is one of the following:
  • the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information is the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information.
  • the channel or signal is PDSCH; and, the PDSCH is related to a first TCI state, and the first TCI state refers to at least one of the following:
  • the TCI state applied to the time-frequency resource used to receive or monitor the control information is applied to the time-frequency resource used to receive or monitor the control information.
  • the time-frequency resource used for receiving or monitoring the control information is one of the following:
  • the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information is the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information.
  • the PDSCH is further related to a second TCI state, and the second TCI state refers to a TCI state other than the first TCI state among the two TCI states.
  • the processing unit 1502 determines to transmit or receive the channel or signal according to the two TCI states according to RRC signaling or the DCI field of the DCI format.
  • the processing unit 1502 determines to transmit or receive the channel or signal according to one of the two TCI states according to RRC signaling or the DCI field of the DCI format.
  • the DCI field of the DCI format is the TDRA field of the DCI format.
  • the RRC signaling is used to indicate whether the channel or signal is related to one TCI state or two TCI states.
  • the terminal device determines, according to the RRC signaling, whether to send or receive the channel or signal according to the two TCI states, or to send or receive the channel or signal according to one of the two TCI states.
  • the time offset between the control information and the channel or signal is greater than or equal to a pre-determined time period.
  • the wireless communication apparatus 1500 in this embodiment of the present application may further include other components or modules, and for the specific content of these components or modules, reference may be made to the related art.
  • FIG. 15 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the apparatus of the embodiment of the present application can avoid the unclear TCI state of the channel or signal, and can reduce the overhead caused by indicating the TCI state of the channel or signal in the control information .
  • An embodiment of the present application provides a wireless communication apparatus, and the apparatus may be, for example, a network device, or may be one or some components or components configured in the network device.
  • FIG. 16 is a schematic diagram of a wireless communication device according to an embodiment of the present application. Since the principle of the device for solving problems is similar to the method of the embodiment of the second aspect, the specific implementation of the device may refer to the implementation of the method of the embodiment of the second aspect. , the same content will not be repeated.
  • the wireless communication apparatus 1600 includes:
  • a sending unit 1601 which sends control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes the TCI field.
  • the DCI format corresponding to the control information includes a TCI field.
  • control information triggers a channel or signal.
  • the channel or signal is a downlink channel or signal or an uplink channel or signal; the downlink channel or signal is PDSCH or CSI-RS, and the uplink channel or signal is PUSCH, At least one of PUCCH and SRS.
  • the TCI status of the channel or signal is indicated by the TCI field. For example, whether the channel or signal is associated with one TCI state or two TCI states is indicated by the TCI field.
  • control information is related to two TCI states means that the transmission of the control information is related to two TCI states.
  • the DCI format corresponding to the control information including the TCI field refers to one of the following:
  • the network device sets the parameter tci-PresentInDCI of a control resource set associated with the DCI format to enable;
  • the network device sets the parameter tci-PresentInDCI of all control resource sets associated with the DCI format to enable;
  • the network device configures a parameter tci-PresentInDCI-ForFormat1_2 of a control resource set associated with the DCI format;
  • the network device configures the parameters tci-PresentInDCI-ForFormat1_2 of all control resource sets associated with the DCI format.
  • the apparatus 1600 for instructing uplink data transmission in this embodiment of the present application may further include other components or modules.
  • the specific content of these components or modules reference may be made to the related art.
  • FIG. 16 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the control information when the control information is associated with two TCI states, the TCI state of the signal or channel indicated by the control information is clarified, and the signal or channel is also specified.
  • the indication of TCI status is more flexible.
  • An embodiment of the present application provides a wireless communication apparatus, and the apparatus may be, for example, a terminal device, or one or some components or components configured in the terminal device.
  • FIG. 17 is a schematic diagram of a wireless communication device according to an embodiment of the present application. Since the principle of the device for solving problems is similar to the method of the embodiment of the third aspect, the specific implementation of the device may refer to the implementation of the method of the embodiment of the third aspect. , the same content will not be repeated.
  • the wireless communication apparatus 1700 includes:
  • a receiving unit 1701 which receives control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes a TCI field.
  • the DCI format corresponding to the control information includes a TCI field.
  • control information triggers a channel or signal.
  • the channel or signal is a downlink channel or signal or an uplink channel or signal; the downlink channel or signal is PDSCH or CSI-RS, and the uplink channel or signal is PUSCH, At least one of PUCCH and SRS.
  • the TCI status of the channel or signal is indicated by the TCI field. For example, whether the channel or signal is associated with one TCI state or two TCI states is indicated by the TCI field.
  • control information is associated with two TCI states means that the reception or monitoring of the control information is associated with the two TCI states.
  • the DCI format including the TCI field refers to one of the following:
  • the terminal device expects that a parameter tci-PresentInDCI of a control resource set associated with the DCI format is set to be enabled;
  • the terminal device expects that the parameter tci-PresentInDCI of all control resource sets associated with the DCI format is set to be enabled.
  • the terminal device expects that a parameter tci-PresentInDCI-ForFormat1_2 of a control resource set associated with the DCI format is configured;
  • the terminal device expects that the parameters tci-PresentInDCI-ForFormat1_2 of all control resource sets associated with the DCI format are configured.
  • the apparatus 1700 for instructing uplink data transmission in this embodiment of the present application may further include other components or modules.
  • the specific content of these components or modules reference may be made to the related art.
  • FIG. 17 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the control information when the control information is associated with two TCI states, the TCI state of the signal or channel indicated by the control information is clarified, and the signal or channel is also specified.
  • the indication of TCI status is more flexible.
  • FIG. 18 is a schematic diagram of the communication system according to the embodiment of the present application.
  • the communication system 1800 includes a network device 1801 and a terminal device 1802 .
  • FIG. 18 only A terminal device and a network device are used as examples for description, but the embodiments of the present application are not limited thereto.
  • the network device 1801 and the terminal device 1802 may perform existing service or service transmission that can be implemented in the future.
  • these services may include, but are not limited to: Enhanced Mobile Broadband (eMBB), Massive Machine Type Communication (mMTC), Highly Reliable Low Latency Communication (URLLC), and Vehicle-to-Network (V2X) communication, among others.
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communication
  • URLLC Highly Reliable Low Latency Communication
  • V2X Vehicle-to-Network
  • the network device 1801 generates control information and sends the control information to the terminal device 1802; the terminal device 1802 receives the control information, the control information triggers a channel or signal, the reception of the control information ) or monitoring (monitoring) is related to two TCI states, and the DCI format corresponding to the control information does not contain a TCI field, and the terminal device 1802 sends or The channel or signal is received.
  • the relevant content of the network device 1801 is not limited in this application.
  • the related content of the terminal device 1802 is the same as the embodiments of the first aspect and the fourth aspect, and the description is omitted here.
  • the network device 1801 generates control information and sends the control information to the terminal device 1802, the control information is related to two TCI states, and the DCI format corresponding to the control information includes the TCI field; the terminal device 1802 receives the control information.
  • the related content of the network device 1801 is the same as that of the embodiments of the second aspect and the fifth aspect, and the description is omitted here.
  • the description is omitted here.
  • the embodiment of the present application further provides a terminal device, for example, the terminal device may be a UE, but the present application is not limited to this, and may also be other devices.
  • FIG. 19 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 1900 may include a processor 1901 and a memory 1902 ; the memory 1902 stores data and programs, and is coupled to the processor 1901 .
  • this figure is exemplary; other types of structures may be used in addition to or in place of this structure to implement telecommunication functions or other functions.
  • the processor 1901 may be configured to execute a program to implement the wireless communication method described in the embodiments of the first aspect or the third aspect.
  • the terminal device 1900 may further include: a communication module 1903 , an input unit 1904 , a display 1905 , and a power supply 1906 .
  • the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the terminal device 1900 does not necessarily include all the components shown in FIG. 19 , and the above components are not required; in addition, the terminal device 1900 may also include components not shown in FIG. 19 . There is technology.
  • the embodiment of the present application also provides a network device, for example, the network device may be a base station (gNB), but the present application is not limited to this, and may also be other network devices.
  • gNB base station
  • FIG. 20 is a schematic diagram of a network device according to an embodiment of the present application.
  • the network device 2000 may include: a processor (eg, a central processing unit CPU) 2001 and a memory 2002 ; the memory 2002 is coupled to the processor 2001 .
  • the memory 2002 can store various data; in addition, it also stores a program for information processing, and the program is executed under the control of the central processing unit 2001 .
  • the processor 2001 may be configured to execute a program to implement the wireless communication method as described in the embodiments of the second aspect.
  • the network device 2000 may further include: a transceiver 2003, an antenna 2004, etc.; wherein, the functions of the above components are similar to those in the prior art, and are not repeated here. It is worth noting that the network device 2000 does not necessarily include all the components shown in FIG. 20 ; in addition, the network device 2000 may also include components not shown in FIG. 20 , and reference may be made to the prior art.
  • Embodiments of the present application further provide a computer-readable program, wherein when the program is executed in a terminal device, the program causes a computer to execute the first aspect or the third aspect in the terminal device in the terminal device. method.
  • the embodiment of the present application further provides a storage medium storing a computer-readable program, wherein the computer-readable program causes a computer to execute the method described in the embodiment of the first aspect or the third aspect in a terminal device.
  • the embodiment of the present application further provides a computer-readable program, wherein when the program is executed in a network device, the program causes a computer to execute the method described in the embodiment of the second aspect in the network device.
  • the embodiment of the present application further provides a storage medium storing a computer-readable program, wherein the computer-readable program causes a computer to execute the method described in the embodiment of the second aspect in a network device.
  • the apparatuses and methods above in the present application may be implemented by hardware, or may be implemented by hardware combined with software.
  • the present application relates to a computer-readable program that, when executed by logic components, enables the logic components to implement the above-described apparatus or constituent components, or causes the logic components to implement the above-described various methods or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • the method/apparatus described in conjunction with the embodiments of this application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figures and/or one or more combinations of the functional block diagrams may correspond to either software modules or hardware modules of the computer program flow.
  • These software modules may respectively correspond to the various steps shown in the figure.
  • These hardware modules can be implemented by, for example, solidifying these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • the functional blocks and/or one or more combinations of the functional blocks described in the figures can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to the figures can also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors processor, one or more microprocessors in communication with the DSP, or any other such configuration.
  • a wireless communication method comprising:
  • the terminal device receives control information, the control information triggers a channel or signal, the reception (reception) or monitoring (monitoring) of the control information is related to two TCI states, and the DCI format corresponding to the control information Does not contain the TCI field;
  • the terminal device transmits or receives the channel or signal according to the two TCI states or according to one of the two TCI states.
  • one of the two TCI states refers to at least one of the following:
  • the TCI state applied to the time-frequency resource used to receive or monitor the control information is applied to the time-frequency resource used to receive or monitor the control information.
  • time-frequency resource used for receiving or monitoring the control information is one of the following:
  • the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information is the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information.
  • the channel or signal is PDSCH; and the PDSCH is related to a first TCI state, and the first TCI state refers to at least one of the following:
  • the TCI state applied to the time-frequency resource used to receive or monitor the control information is applied to the time-frequency resource used to receive or monitor the control information.
  • time-frequency resource used for receiving or monitoring the control information is one of the following:
  • the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information is the PRB with the lowest index within the earliest symbol used for the reception or monitoring of the control information.
  • TCI state there is a TCI state other than the first TCI state.
  • the channel or signal is a downlink channel or signal or an uplink channel or signal; the downlink channel or signal is PDSCH or CSI-RS, the uplink channel or signal is at least one of PUSCH, PUCCH and SRS.
  • a wireless communication method comprising:
  • the network device sends control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes the TCI field.
  • control information triggers a channel or signal.
  • control information being related to two TCI states means:
  • the transmission of the control information is related to two TCI states.
  • the network device sets a parameter tci-PresentInDCI of a control resource set associated with the DCI format to enable.
  • the network device sets the parameter tci-PresentInDCI of all control resource sets associated with the DCI format to enable.
  • the network device configures a parameter tci-PresentInDCI-ForFormat1_2 of a control resource set associated with the DCI format.
  • the network device configures the parameters tci-PresentInDCI-ForFormat1_2 of all control resource sets associated with the DCI format.
  • the channel or signal is a downlink channel or signal or an uplink channel or signal; the downlink channel or signal is PDSCH or CSI-RS, and the uplink channel or signal is PDSCH or CSI-RS.
  • the channel or signal is at least one of PUSCH, PUCCH and SRS.
  • a method of wireless communication wherein the method comprises:
  • the terminal device receives control information, the control information is related to two TCI states, and the DCI format corresponding to the control information includes the TCI field.
  • the DCI format corresponding to the control information includes a TCI field.
  • a terminal device comprising a memory and a processor, wherein the memory stores a computer program, the processor is configured to execute the computer program to realize any one of the appendixes 1 to 12, 24 to 31 Methods.
  • a network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of appendixes 13 to 23.
  • a communication system comprising terminal equipment and network equipment, wherein,
  • the terminal device is configured to execute the method described in any one of Supplementary Notes 24 to 31, and the network device is configured to execute the method described in any one of Supplementary Notes 13 to 23; or
  • the terminal device is configured to execute the method described in any one of Supplementary Notes 1 to 12.

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Abstract

本申请实施例提供了一种无线通信方法、装置和系统，该方法包括：终端设备接收控制信息，所述控制信息触发(triggers)一个信道或信号，所述控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应所述控制信息的DCI format不包含TCI域；所述终端设备根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。

Description

无线通信方法、装置和系统 技术领域
本申请涉及通信领域。
背景技术
为了缓解日趋紧张的频谱资源，NR(New Radio，新无线)引入了高频通信方式，以便增加通信系统可用的频率资源，进而提升系统容量。
NR Release 15引入了对PDCCH(Physical Downlink Control Channel，物理下行控制信道)的QCL(quasi-collocation，准共站址)参数的指示方法。通常来说，一个CORESET(控制资源集合)中，PDCCH DM-RS(Demodulation Reference Signal，解调参考信号)的天线端口的QCL参数是由RRC(Radio Resource Control，无线资源控制)信令和MAC-CE(Media Access Control-Control Element，媒体接入控制-控制单元)信令指示的。具体地说，如果一个PDCCH所对应的CORESET通过RRC信令(tci-StatesPDCCH-ToAddList或者tci-StatesPDCCH-ToReleaseList)配置了多于一个TCI(Transmission Configuration Indicator，传输配置指示)状态，MAC-CE可以用于激活其中一个TCI状态(state)。当该TCI状态被激活后，该PDCCH的DM-RS的天线端口与该激活的TCI状态所对应的参考信号是QCL的(quasi-colocated)。
NR Release 15也引入了对PDSCH(Physical Downlink Shared Channel，物理下行共享信道)的QCL参数的指示方法。通常来说，对于动态调度而言，PDSCH的QCL参数的指示方法有以下两种：如果一个PDSCH的调度DCI format(Downlink Control Information format，下行控制信息格式)包含TCI域(field)，则该PDSCH的QCL参数是由该DCI format的TCI域所指示的TCI状态确定的；如果一个PDSCH的调度DCI format不包含TCI域，则该PDSCH的QCL参数是由接收该DCI format(PDCCH)所对应的CORESET所应用的TCI状态或QCL假设所确定的。
应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现，NR系统支持高达52.6GHz的中心发射频率。在高频场景中，由于信号的衍射能力较差，很容易被遮挡(blockage)。这种由于遮挡而导致的信道质量下降，对于URLLC(Ultra-Relaible and Low Latency Communication，超可靠低时延通信)业务是非常不利的。这是因为，根据现有的波束失败恢复机制，最快需要几十毫秒才能恢复通信链路，而URLLC的通信时延要求一般远远小于几十毫秒。在受到遮挡的情况下，高频下行链路所对应的信道可能瞬间变差。然而，现有的恢复机制所需要的时间太长，无法满足URLLC业务的时延要求。
为了降低遮挡对下行链路的影响，尤其是下行控制信息的影响，一种可行的方式是，让下行控制信息以空间分集的方式进行发送。也就是说，同样的下行控制信息可以经由不同的空域路径或者说经由不同的TRP(transmission and reception point，收发节点)到达UE(User Equipment，用户设备)。这样，在一个路径发生了遮挡的情况下，其他路径仍然能够继续工作，从而保证了下行控制信息的低时延高可靠性。
然而，当一个下行控制信息与两个TCI状态关联(也即，同时经历了两个不同的空域路径)，并且该下行控制信息中不包括TCI域时，通过现有的机制无法确定该下行控制信息所触发的信道(或信号)所关联的TCI状态。更具体地说，这种情况下，下行控制信息与两个TCI状态关联，而现有技术无法确定上述下行控制信息所关联的两个TCI状态与上述下行控制信息所调度的PDSCH所关联的TCI状态之间的关系。
为了解决上述问题或其它类似问题，本申请实施例提供了一种无线通信方法、装置和系统，以避免信道或信号的TCI状态不明确而导致的系统性能下降的问题。
根据本申请实施例的一方面，提供一种无线通信方法，所述方法包括：
终端设备接收控制信息，所述控制信息触发(triggers)一个信道或信号，所述控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应所述控制信息的DCI format不包含TCI域；
所述终端设备根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。
根据本申请实施例的另一方面，提供一种无线通信方法，所述方法包括：
网络设备发送控制信息，所述控制信息与两个TCI状态相关，对应所述控制信息的DCI format包括TCI域。
根据本申请实施例的再一方面，提供一种无线通信方法，所述方法包括：
终端设备接收控制信息，所述控制信息与两个TCI状态相关，并且，对应所述控制信息的DCI format包括TCI域。
根据本申请实施例的一方面，提供一种无线通信装置，所述装置包括：
接收单元，其接收控制信息，所述控制信息触发(triggers)一个信道或信号，所述控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应所述控制信息的DCI format不包含TCI域；
处理单元，其根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。
根据本申请实施例的另一方面，提供一种无线通信装置，所述装置包括：
发送单元，其发送控制信息，所述控制信息与两个TCI状态相关，对应所述控制信息的DCI format包括TCI域。
根据本申请实施例的再一方面，提供一种无线通信装置，所述装置包括：
接收单元，其接收控制信息，所述控制信息与两个TCI状态相关，并且，对应所述控制信息的DCI format包括TCI域。
本申请实施例的有益效果之一在于：一方面，当一个(不包含TCI域的)控制信息触发一个信道或信号时，该信道或信号的TCI状态由与该控制信息关联的TCI状态确定。通过该方法，可以确定与该控制信息关联的两个TCI状态与该信号或信道的TCI状态的映射关系，避免该信道或信号的TCI状态不明确，并且该方法能够减少因为在控制信息中指示该信道或信号的TCI状态而产生的开销。另一方面，当一个控制信息触发一个信道或信号时，如果该控制信息与两个TCI状态关联，则该控制信息包含TCI域。通过该方法，可以使得上述控制信息总是包含TCI域，该控制信息所触发的信号或信道的TCI状态由其所包含的TCI域指示，从而明确了该信号或信道的TCI状态，也使得对该信号或信道的TCI状态指示更灵活。
参照后文的说明和附图，详细公开了本申请的特定实施方式，指明了本申请的原理可以被采用的方式。应该理解，本申请的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合或替代其它实施方式中的特 征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。在附图中：
图1是本申请第一方面的实施例的无线通信方法的示意图；
图2是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的一个示意图；
图3是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的另一个示意图；
图4是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的再一个示意图；
图5是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的又一个示意图；
图6是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的又一个示意图；
图7是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的一个示意图；
图8是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的另一个示意图；
图9是本申请第二方面的实施例的无线通信方法的示意图；
图10是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状 态之间的映射关系的一个示意图；
图11是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的一个示意图；
图12是本申请第三方面的实施例的无线通信方法的示意图；
图13是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的一个示意图；
图14是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的一个示意图；
图15是本申请第四方面的实施例的无线通信装置的一个示意图；
图16是本申请第五方面的实施例的无线通信装置的一个示意图；
图17是本申请第六方面的实施例的无线通信装置的一个示意图；
图18是本申请第七方面的实施例的通信系统的示意图；
图19是本申请第七方面的实施例的终端设备的示意图；
图20是本申请第七方面的实施例的网络设备的示意图。
具体实施方式
参照附图，通过下面的说明书，本申请的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本申请的特定实施方式，其表明了其中可以采用本申请的原则的部分实施方式，应了解的是，本申请不限于所描述的实施方式，相反，本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下 文另外明确指出。
在本申请实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、收发节点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本申请实施例中，术语“用户设备”(UE，User Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备，也可以称为“终端设备”(TE，Terminal Equipment)。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机， 等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
下面结合附图对本申请的各种实施方式进行说明。这些实施方式只是示例性的，不是对本申请的限制。
第一方面的实施例
本申请实施例提供一种无线通信方法，从终端设备侧进行说明。
图1是本申请实施例的无线通信方法的示意图，请参照图1，该方法包括：
101：终端设备接收控制信息，所述控制信息触发(triggers)一个信道或信号，所述控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应所述控制信息的DCI format不包含TCI域；
102：所述终端设备根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。
根据本申请实施例的方法，当一个(不包含TCI域的)控制信息触发一个信道或信号时，该信道或信号的TCI状态由与该控制信息关联的TCI状态确定。由此，该方法可以确定与该控制信息关联的两个TCI状态与该信号或信道的TCI状态的映射关系，避免该信道或信号的TCI状态不明确，并且该方法能够减少因为在控制信息中指示该信道或信号的TCI状态而产生的开销。
在本申请实施例中，上述信道或信号与上述两个TCI状态中的至少一个相关。由此，终端设备可以根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。
例如，上述两个TCI状态中的其中一个是用于接收或监测上述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态。终端设备根据该第一TCI状态发送或接收上述信道或信号。该实施例通过MAC-CE信令所指示的第一TCI状态确定上述控制信息所触发的信道或信号的TCI状态。由此，可以灵活地更改上述信道或信号的TCI状态。
再例如，上述两个TCI状态中的其中一个是用于接收或监测上述控制信息的控制 资源集合(CORESET)的TCI状态中最低ID的TCI状态。终端设备根据该最低ID的TCI状态发送或接收上述信道或信号。该实施例通过相关的ID最低的TCI状态确定上述控制信息所触发的信道/信号的TCI状态。由此，可以通过TCI状态ID直接确定上述信道或信号的TCI状态，避免额外的信令开销。
再例如，上述两个TCI状态中的其中一个是用于接收或监测上述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态。终端设备根据该TCI状态发送或接收上述信道或信号。该实施例通过RRC信令所指示的第一CORESET的TCI状态确定上述控制信息所触发的信道或信号的TCI状态。由此，可以灵活地更改上述信道或信号的TCI状态。
再例如，上述两个TCI状态中的其中一个是用于接收或监测上述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态。终端设备根据该TCI状态发送或接收上述信道或信号。该实施例通过相关的ID最低的CORESET的TCI状态确定上述控制信息所触发的信道或信号的TCI状态。由此，可以通过关联的CORESET的ID直接确定上述信道或信号的TCI状态，避免额外的信令开销。
再例如，上述两个TCI状态中的其中一个是用于接收或监测上述控制信息的两个搜索空间集合中的由RRC信令指示的第一搜索空间集合所对应的TCI状态。终端设备根据该TCI状态发送或接收上述信道或信号。该实施例通过RRC信令所指示的第一搜索空间集合的TCI状态确定上述控制信息所触发的信道或信号的TCI状态。由此，可以灵活地更改上述信道或信号的TCI状态。
再例如，上述两个TCI状态中的其中一个是用于接收或监测上述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态。终端设备根据该TCI状态发送或接收上述信道或信号。该实施例通过相关的ID最低的搜索空间集合的TCI状态确定上述控制信息所触发的信道或信号的TCI状态。由此，可以通过关联的搜索空间集合的ID直接确定上述信道或信号的TCI状态，避免额外的信令开销。
再例如，上述两个TCI状态中的其中一个是用于接收或监测上述控制信息的时频资源所应用的TCI状态。终端设备根据该TCI状态发送或接收上述信道或信号。该实施例通过接收或者监听上述控制信息所对应的时频资源确定控制信息所触发的信道或信号的TCI状态。由此，可以通过上述的时频资源直接确定上述信道或信号的TCI状态，避免额外的信令开销。
在这个例子中，用于控制信息的接收或监测的时频资源可以是用于该控制信息的接收或监测的最早的符号；也可以是用于该控制信息的接收或监测的最低索引(index) 的PRB(Physical Recourse Block，物理资源块)；还可以是用于该控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。本申请不限于此。
在本申请实施例中，在一些实施例中，上述信道或信号为下行的信道或信号，例如PDSCH或者CSI-RS(Channel State Information-Reference Signal，信道状态信息参考信号)等；在一些实施例中，上述信道或信号为上行的信道或信号，例如PUSCH(Physical Uplink Shared Channel，物理上行共享信道)、PUCCH(Physical Uplink Control Channel，物理上行控制信道)、和/或SRS(Sounding Reference Signal，探测参考信号)等。
以上述信道或信号为PDSCH为例，在一些实施例中，该PDSCH与第一TCI状态相关，该第一TCI状态可以是以下至少之一：
用于接收或监测上述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态；
用于接收或监测上述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态；
用于接收或监测上述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态；
用于接收或监测上述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态；
用于接收或监测上述控制信息的两个搜索空间集合中的由RRC信令指示的第一搜索空间集合所对应的TCI状态；
用于接收或监测上述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态；
用于接收或监测上述控制信息的时频资源所应用的TCI状态。
在上述实施例中，用于上述控制信息的接收或监测的时频资源可以是用于该控制信息的接收或监测的最早的符号，或者是，用于该控制信息的接收或监测的最低索引(index)的PRB，或者是用于该控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。本申请不限于此。
在上述实施例中，在一些实施例中，该PDSCH还与第二TCI状态相关，该第二TCI状态可以是上述两个TCI状态中除了上述第一TCI状态以外的TCI状态。
例如，假设上述第一TCI状态为用于接收或监测上述控制信息的控制资源集合 (CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态，则该第二TCI状态是由该MAC-CE命令指示的第二TCI状态。
再例如，假设上述第一TCI状态为用于接收或监测上述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态，则该第二TCI状态是用于接收或监测上述控制信息的控制资源集合(CORESET)的TCI状态中最高ID的TCI状态。
以此类推，不再赘述。
在本申请实施例中，在一些实施例中，上述信道或信号与两个TCI状态相关，例如多TRP PDSCH的场景。
在本申请实施例中，终端设备可以根据RRC信令或者上述DCI format的DCI域确定是根据上述两个TCI状态发送或接收上述信道或信号，还是根据上述两个TCI状态中的一个TCI状态发送会接收上述信道或信号。例如，上述RRC信令用于指示上述信道或信号与一个TCI状态相关，还是与两个TCI状态相关。在一些实施例中，上述DCI format的DCI域可以是上述DCI format的TDRA(Time Domain Resource Allocation，时域资源分配)域。本申请不限于此。
在本申请实施例中，上述控制信息与上述信道或信号之间的时间偏移(time offset)大于或等于一个预定义的时间段(pre-determined time period)，例如，上述时间偏移大于或等于timeDurationForQCL。由此，终端设备可以根据上述控制信息所关联的QCL参数确定上述信道或信号的QCL参数。关于timeDurationForQCL的定义，可以参考相关技术，此处省略说明。
下面通过几个具体的示例对本申请实施例的方法进行说明。
图2是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的一个示意图。
如图2所示，UE在时隙n接收到一个与两个TCI状态关联的PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format不包含TCI域；该PDCCH对应的搜索空间为SS#1；该搜索空间SS#1对应的CORESET为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，该MAC-CE激活信令激活的第二TCI状态为TCI#2；此外，在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第二 个符号所应用的TCI状态为TCI#2。
在这个示例中，根据本申请实施例的方法，UE可以根据以下方法1或方法2确定该PDSCH关联了一个TCI状态：
方法1：在UE接收上述PDCCH和PDSCH之前，UE接收到一个RRC信令，UE根据该RRC信令确定上述PDSCH关联了一个TCI状态；
方法2：UE根据上述PDCCH所对应的DCI format中的TDRA域确定上述PDSCH关联了一个TCI状态。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的TCI状态：
方法#1-1：根据用于接收上述PDCCH的第一TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第一TCI状态(TCI#1)决定。
方法#1-2：根据用于接收上述PDCCH的第二TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第二TCI状态(TCI#2)决定。
方法#2-1：根据用于接收上述PDCCH的最小ID的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最小的TCI状态(TCI#1)决定。
方法#2-2：根据用于接收上述PDCCH的最大ID的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最大的TCI状态(TCI#2)决定。
方法#3-1：根据用于接收上述PDCCH的最早的符号所应用的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收的最早的符号为时隙n的第一个符号，则PDSCH的TCI状态由PDCCH在该符号上所应用的TCI状态(TCI#1)决定。
方法#3-2：根据用于接收上述PDCCH的最晚的符号所应用的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收的最晚的符号为时隙n的第二个符号，则PDSCH的TCI状态由PDCCH在该符号上所应用的TCI状态(TCI#2)决定。
图3是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的另一个示意图。
如图3所示，UE在时隙n接收到一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format不包含TCI域；该PDCCH对应的搜索空间为SS#1；该搜索空间SS#1对应的CORESET为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，该MAC-CE激活信令激活的第二TCI状态为TCI#2；此外，对于CORESET#1而言，其频域资源划分为两部分，其中，频率较高的部分所应用的TCI状态为TCI#1，而频率较低的部分所应用的TCI状态为TCI#2。
在这个示例中，根据本申请实施例的方法，UE可以根据以下方法1或方法2确定该PDSCH关联了一个TCI状态：
方法1：在UE接收上述PDCCH和PDSCH之前，UE接收到一个RRC信令，UE根据该RRC信令确定上述PDSCH关联了一个TCI状态；
方法2：UE根据上述PDCCH所对应的DCI format中的TDRA域确定上述PDSCH关联了一个TCI状态。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的TCI状态：
方法#1-1：根据用于接收上述PDCCH的第一TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，则PDSCH的TCI状态由MAC-CE为CORESET#1激活的第一TCI状态(TCI#1)决定。
方法#1-2：根据用于接收上述PDCCH的第二TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，则PDSCH的TCI状态由MAC-CE为CORESET#1激活的第二TCI状态(TCI#2)决定。
方法#2-1：根据用于接收上述PDCCH的最小ID的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最小的TCI状态 (TCI#1)决定。
方法#2-2：根据用于接收上述PDCCH的最大ID的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最大的TCI状态(TCI#2)决定。
方法#3-1：根据用于接收上述PDCCH的频域资源中对应频率最高的PRB(例如ID最高的PRB)所应用的TCI状态(TCI#1)确定PDSCH的TCI状态(TCI#1)。
方法#3-2：根据用于接收上述PDCCH的频域资源中对应频率最低的PRB(例如ID最低的PRB)所应用的TCI状态(TCI#2)确定PDSCH的TCI状态(TCI#2)。
方法#4：根据接收上述PDCCH的时频资源中在最早的符号中对应频率最低的PRB(例如ID最低的PRB)所应用的TCI状态(TCI#2)确定PDSCH的TCI状态(TCI#2)。例如，上述PDCCH的接收的最早的符号为时隙n的第一个符号，则PDSCH的TCI状态由PDCCH在该符号上对应的最低PRB所应用的TCI状态决定(TCI#2)。
在以上图2和图3的示例中，PDCCH没有重复(repetition)。并且，图2示出了时分复用(TDM)的情况，图3示出了频分复用(FDM)的情况。
图4是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的再一个示意图。
如图4所示，UE在时隙n接收到一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format不包含TCI域；该PDCCH包括两部分，分别为PDCCH#rep1以及PDCCH#rep2，其中，PDCCH#rep1和PDCCH#rep2对应相同的DCI比特；PDCCH对应的搜索空间分别为SS#1和SS#2，其中，SS#1位于时隙n的第一个符号，SS#2位于时隙n的第三个符号，例如，UE提前得知SS#1与SS#2是相关联的，SS#1对应第一SS，SS#2对应第二SS，在这两个SS上可以分别接收一个PDCCH所对应的repetition；根据RRC信令的配置，搜索空间SS#1和SS#2对应的CORESET都为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，其中，SS#2对应TCI#1；该MAC-CE激活信令激活的第二TCI状态为TCI#2，其中，SS#1对应TCI#2；此外，在时隙n的第一个符号所应用的TCI状态为TCI#1，在时 隙n的第三个符号所应用的TCI状态为TCI#2。
在这个示例中，根据本申请实施例的方法，UE可以根据以下方法1或方法2确定该PDSCH关联了一个TCI状态：
方法1：在UE接收上述PDCCH和PDSCH之前，UE接收到一个RRC信令，UE根据该RRC信令确定上述PDSCH关联了一个TCI状态；
方法2：UE根据上述PDCCH所对应的DCI format中的TDRA域确定上述PDSCH关联了一个TCI状态。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的TCI状态：
方法1-1：根据用于监听上述PDCCH的第一TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第一TCI状态(TCI#1)决定。
方法1-2：根据用于监听上述PDCCH的第二TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第二TCI状态(TCI#2)决定。
方法2-1：根据用于监听上述PDCCH的ID最小的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，则PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最小的TCI状态(TCI#1)决定。
方法2-2：根据用于监听上述PDCCH的ID最大的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最大的TCI状态(TCI#2)决定。
方法3-1：根据用于监听上述PDCCH的第一SS的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第一SS(SS#1)的TCI状态(TCI#1)决定。
方法3-2：根据用于监听上述PDCCH的第二SS的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个， 而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第二SS(SS#2)的TCI状态(TCI#2)决定。
方法4-1：根据用于监听上述PDCCH的ID最小的SS的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的用于ID最小的SS(SS#1)的TCI状态(TCI#1)决定。
方法4-2：根据用于监听上述PDCCH的ID最大的SS的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的用于ID最大的SS(SS#2)的TCI状态(TCI#2)决定。
方法5-1：根据用于监听上述PDCCH的最早的符号所应用的TCI状态(TCI#1)确定PDSCH的TCI状态。例如，上述PDCCH的监听所对应的最早的符号为时隙n的第一个符号，则PDSCH的TCI状态由PDCCH在该符号上所应用的TCI状态决定。
方法5-2：根据用于监听上述PDCCH的最晚的符号所应用的TCI状态(TCI#2)确定PDSCH的TCI状态。例如，上述PDCCH监听所对应的最晚的符号为时隙n的第三个符号，则PDSCH的TCIT状态由PDCCH在该符号上所应用的TCI状态决定。
图5是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的又一个示意图。
如图5所示，UE在时隙n接收到一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format不包含TCI域；该PDCCH包括两部分，分别为PDCCH#rep1以及PDCCH#rep2，其中，PDCCH#rep1和PDCCH#rep2对应相同的DCI比特；PDCCH对应的搜索空间为SS#1；根据RRC信令的配置，搜索空间SS#1对应CORESET#1和CORESET#2，例如，UE提前得知CORESET#1和CORESET#2是关联的，CORESET#1对应TCI#2，CORESET#2对应TCI#1。
在这个示例中，根据本申请实施例的方法，UE可以根据以下方法1或方法2确定该PDSCH关联了一个TCI状态：
方法1：在UE接收上述PDCCH和PDSCH之前，UE接收到一个RRC信令，UE根据该RRC信令确定上述PDSCH关联了一个TCI状态；
方法2：UE根据上述PDCCH所对应的DCI format中的TDRA域确定上述PDSCH关联了一个TCI状态。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的TCI状态：
方法2-1：根据用于监听上述PDCCH的ID最小的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1和CORESET#2的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1和CORESET#2激活的ID最小的TCI状态(TCI#1)决定。
方法2-2：根据用于监听上述PDCCH的ID最大的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1和CORESET#2的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1和CORESET#2激活的ID最大的TCI状态(TCI#2)决定。
方法3-1：根据用于监听上述PDCCH的第一CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个CORESET的其中一个，而PDSCH的TCI状态由应用于第一CORESET(CORESET#1)的TCI状态(TCI#2)决定。
方法3-2：根据用于监听上述PDCCH的第二CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个CORESET的其中一个，而PDSCH的TCI状态由应用于第二CORESET(CORESET#2)的TCI状态(TCI#1)决定。
方法4-1：根据用于监听上述PDCCH的ID最小的CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个CORESET的其中一个，而PDSCH的TCI状态由应用于ID最小的CORESET(CORESET#1)的TCI状态(TCI#2)决定。
方法4-2：根据用于监听上述PDCCH的ID最大的CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个CORESET的其中一个，而PDSCH的TCI状态由应用于ID最大的CORESET(CORESET#2)的TCI状态(TCI#1)决定。
方法5-1：根据用于监听上述PDCCH的频域资源中最低频率的PRB(例如ID最低的PRB)所应用的TCI状态(TCI#2)确定PDSCH的TCI状态。
方法5-2：根据用于监听上述PDCCH的频域资源中最高频率的PRB(例如ID 最高的PRB)所应用的TCI状态(TCI#1)确定PDSCH的TCI状态。
图6是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的又一个示意图。
如图6所示，UE在时隙n接收到一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format不包含TCI域；该PDCCH包括两部分，分别为PDCCH#rep1以及PDCCH#rep2，其中，PDCCH#rep1和PDCCH#rep2对应相同的DCI比特；PDCCH对应的搜索空间分别为SS#1和SS#2，其中，SS#1位于时隙n的第一个符号，SS#2位于时隙n的第三个符号，例如，UE提前得知SS#1与SS#2是相关联的，SS#1对应第一SS，SS#2对应第二SS，在这两个SS上可以分别接收一个PDCCH所对应的repetition；根据RRC信令的配置，搜索空间SS#1和SS#2分别对应CORESET#2和CORESET#1，例如，例如，RRC信令指示CORESET#1对应第一CORESET，CORESET#2对应第二CORESET；在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第三个符号所应用的TCI状态为TCI#2。
在这个示例中，根据本申请实施例的方法，UE可以根据以下方法1或方法2确定该PDSCH关联了一个TCI状态：
方法1：在UE接收上述PDCCH和PDSCH之前，UE接收到一个RRC信令，UE根据该RRC信令确定上述PDSCH关联了一个TCI状态；
方法2：UE根据上述PDCCH所对应的DCI format中的TDRA域确定上述PDSCH关联了一个TCI状态。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的TCI状态：
方法1-1：根据用于监听上述PDCCH的第一TCI状态确定PDSCH的TCI状态由。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第一TCI状态(TCI#1)决定。
方法1-2：根据用于监听上述PDCCH的第二TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的第二TCI 状态(TCI#2)决定。
方法2-1：根据用于监听上述PDCCH的ID最小的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最小的TCI状态(TCI#1)决定。
方法2-2：根据用于监听上述PDCCH的ID最大的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的TCI状态由MAC-CE为CORESET#1激活的ID最大的TCI状态(TCI#2)决定。
方法3-1：根据用于监听上述PDCCH的第一CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个CORESET中的第一CORESET，而PDSCH的TCI状态由CORESET#1所应用的TCI状态(TCI#1)决定。
方法3-2：根据用于监听上述PDCCH的第二CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个CORESET中的第二CORESET，而PDSCH的TCI状态由CORESET#2所应用的TCI状态(TCI#2)决定。
方法4-1：根据用于监听上述PDCCH的ID最小的CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个CORESET中ID较小的一个，而PDSCH的TCI状态由CORESET#1所应用的TCI状态(TCI#1)决定。
方法4-2：根据用于监听上述PDCCH的ID最大的CORESET的TCI状态确定PDSCH的TCI状态。例如，上述PDCCH的监听是根据上述PDCCH所对应的两个CORESET中ID较大的一个，而PDSCH的TCI状态由CORESET#2所应用的TCI状态(TCI#2)决定。
方法5-1：根据用于监听上述PDCCH的最早的符号所应用的TCI状态(TCI#1)确定PDSCH的TCI状态。例如，上述PDCCH监听所对应的最早的符号为时隙n的第一个符号，则PDSCH的TCI状态由PDCCH在该符号上所应用的TCI状态决定。
方法5-2：根据用于监听上述PDCCH的最晚的符号所应用的TCI状态(TCI#2)确定PDSCH的TCI状态。例如，上述PDCCH监听所对应的最晚的符号为时隙n的第三个符号，则PDSCH的TCI状态由PDCCH在该符号上所应用的TCI状态决定。
在以上图4至图6的示例中，PDCCH有重复(repetition)。并且，在图4的示例中，有两个搜索空间集合和一个CORESET，在图5的示例中，有一个搜索空间集合和两个CORESETs，在图6的示例中，有两个搜索空间集合和两个CORESETs。
图7是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的一个示意图。
如图7所示，UE在时隙n接收到一个与两个TCI状态关联的PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format不包含TCI域；该PDCCH对应的搜索空间为SS#1；搜索空间SS#1对应的CORESET为CORESET#1；CORESET#1由MAC-CE激活信令激活两个TCI状态，也即，TCI#1和TCI#2，其中，MAC-CE激活信令激活的第一TCI状态为TCI#1，MAC-CE激活信令激活的第二TCI状态为TCI#2；在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第二个符号所应用的TCI状态为TCI#2。
在这个示例中，根据本申请实施例的方法，UE可以根据以下方法1或方法2确定该PDSCH关联了两个TCI状态：
方法1：在UE接收上述PDCCH和PDSCH之前，UE接收到一个RRC信令，UE根据该RRC信令确定上述PDSCH关联了两个TCI状态；
方法2：UE根据上述PDCCH所对应的DCI format中的TDRA域确定上述PDSCH关联了两个TCI状态。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的Rep#1的TCI状态：
方法1-1：根据用于接收上述PDCCH的第一TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的第一TCI状态(TCI#1)决定。
方法1-2：根据用于接收上述PDCCH的第二TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的第二TCI状态(TCI#2)决定。
方法2-1：根据用于接收上述PDCCH的最小ID的TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的ID最小的TCI状态(TCI#1)决定。
方法2-2：根据用于接收上述PDCCH的最大ID的TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的接收是依据上述PDCCH所对应的CORESET#1的TCI状态，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的ID最大的TCI状态(TCI#2)决定。
方法3-1：根据用于接收上述PDCCH的最早的符号所应用的TCI状态(TCI#1)确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的接收的最早的符号为时隙n的第一个符号，则PDSCH的Rep#1的TCI状态由PDCCH在该符号上所应用的TCI状态决定。
方法3-2：根据用于接收上述PDCCH的最晚的符号所应用的TCI状态(TCI#2)确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的接收的最晚的符号为时隙n的第二个符号，则PDSCH的Rep#1的TCI状态由PDCCH在该符号上所应用的TCI状态决定。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的Rep#2的TCI状态：
由于上述PDCCH所对应的TCI状态为TCI#1和TCI#2，UE在根据上面的方法确定了PDSCH的Rep#1的TCI状态之后，可以在TCI#1和TCI#2之间选择出不是用于PDSCH的Rep#1的TCI状态作为PDSCH的Rep#2的TCI状态。
例如，如果根据前述方法1-1确定PDSCH的Rep#1的TCI状态为TCI#1，则确定PDSCH的Rep#2的TCI状态为TCI#2。
再例如，如果根据前述方法1-2确定PDSCH的Rep#1的TCI状态为TCI#2，则确定PDSCH的Rep#2的TCI状态为TCI#1。
以此类推，此处省略说明。
在图7的示例中，PDCCH没有重复，而PDSCH有重复。并且，图7示出了TDM的情况，FDM的情况与TDM类似，可以根据图3的方法进行类推，此处省略说明。
图8是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的另一个示意图。
如图8所示，UE在时隙n接收到一个PDCCH(控制信息)，该PDCCH调度一 个PDSCH(信道或信号)。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format不包含TCI域；该PDCCH包括两部分，分别为PDCCH#rep1以及PDCCH#rep2，其中，PDCCH#rep1和PDCCH#rep2对应相同的DCI比特；PDCCH对应的搜索空间分别为SS#1和SS#2，其中，SS#1位于时隙n的第一个符号，SS#2位于时隙n的第三个符号，例如，UE提前得知SS#1与SS#2是相关联的，SS#1对应第一SS，SS#2对应第二SS，在这两个SS上可以分别接收一个PDCCH所对应的repetition；根据RRC信令的配置，搜索空间SS#1和SS#2对应的CORESET都为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，其中，SS#2对应TCI#1；该MAC-CE激活信令激活的第二TCI状态为TCI#2，其中，SS#1对应TCI#2；此外，在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第三个符号所应用的TCI状态为TCI#2。
在这个示例中，根据本申请实施例的方法，UE可以根据以下方法1或方法2确定该PDSCH关联了两个TCI状态：
方法1：在UE接收上述PDCCH和PDSCH之前，UE接收到一个RRC信令，UE根据该RRC信令确定上述PDSCH关联了两个TCI状态；
方法2：UE根据上述PDCCH所对应的DCI format中的TDRA域确定上述PDSCH关联了两个TCI状态。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的Rep#1的TCI状态：
方法1-1：根据用于监听上述PDCCH的第一TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的第一TCI状态(TCI#1)决定。
方法1-2：根据用于监听上述PDCCH的第二TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的第二TCI状态(TCI#2)决定。
方法2-1：根据用于监听上述PDCCH的ID最小的TCI状态确定PDSCH的Rep#1 的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的ID最小的TCI状态(TCI#1)决定。
方法2-2：根据用于监听上述PDCCH的ID最大的TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的CORESET#1的两个TCI状态的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的ID最大的TCI状态(TCI#2)决定。
方法3-1：根据用于监听上述PDCCH的第一SS的TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的第一SS(SS#1)的TCI状态(TCI#2)决定。
方法3-2：根据用于监听上述PDCCH的第二SS的TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的第二SS(SS#2)的TCI状态(TCI#1)决定。
方法4-1：根据用于监听上述PDCCH的ID最小的SS的TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的用于ID最小的SS(SS#1)的TCI状态(TCI#2)决定。
方法4-2：根据用于监听上述PDCCH的ID最大的SS的TCI状态确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听是依据上述PDCCH所对应的两个SS的其中一个，而PDSCH的Rep#1的TCI状态由MAC-CE为CORESET#1激活的用于ID最大的SS(SS#2)的TCI状态(TCI#2)决定。
方法5-1：根据用于监听上述PDCCH的最早的符号所应用的TCI状态(TCI#1)确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听所对应的最早的符号为时隙n的第一个符号，则PDSCH的Rep#1的TCI状态由PDCCH在该符号上所应用的TCI状态决定。
方法5-2：根据用于监听上述PDCCH的最晚的符号所应用的TCI状态(TCI#2)确定PDSCH的Rep#1的TCI状态。例如，上述PDCCH的监听所对应的最晚的符号为时隙n的第三个符号，则PDSCH的Rep#1的TCI状态由PDCCH在该符号上所应用的TCI状态决定。
在这个示例中，根据本申请实施例的方法，UE可以根据以下的方法确定上述PDSCH的Rep#2的TCI状态：
由于上述PDCCH所对应的TCI状态为TCI#1和TCI#2，UE在根据上面的方法确定了PDSCH的Rep#1的TCI状态之后，可以在TCI#1和TCI#2之间选择出不是用于PDSCH的Rep#1的TCI状态作为PDSCH的Rep#2的TCI状态。
例如，如果根据前述方法1-1确定PDSCH的Rep#1的TCI状态为TCI#1，则确定PDSCH的Rep#2的TCI状态为TCI#2。
再例如，如果根据前述方法1-2确定PDSCH的Rep#1的TCI状态为TCI#2，则确定PDSCH的Rep#2的TCI状态为TCI#1。
以此类推，此处省略说明。
在图8的示例中，PDCCH和PDSCH都有重复。并且，图8示出了两个搜索空间集合和一个CORESET的情况，一个搜索空间集合和两个CORESET的情况以及两个搜索空间集合和两个CORESET的情况与两个搜索空间集合和一个CORESET的情况类似，可以根据图5和图6的方法进行类推，此处省略说明。
值得注意的是，以上图2仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作，或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图2的记载。
根据本申请实施例的方法，如前所述，能够避免上述信道或信号的TCI状态不明确，并且能够减少因为在控制信息中指示该信道或信号的TCI状态而产生的开销。
第二方面的实施例
本申请实施例提供一种无线通信方法，从网络设备侧进行说明。
图9是本申请实施例的无线通信方法的示意图，如图9所示，该方法包括：
901：网络设备发送控制信息，所述控制信息与两个TCI状态相关，对应所述控制信息的DCI format包括TCI域。
在本申请实施例中，如果控制信息与两个TCI状态相关，则对应该控制信息的DCI format包括TCI域。
在本申请实施例中，上述控制信息触发(trigger)一个信道或信号。该信道或信号可以是下行的信道或信号，例如PDSCH或CSI-RS；也可以是上行的信道或信号， 例如PUSCH、PUCCH和/或SRS。本申请不限于此。
在本申请实施例中，上述信道或信号的TCI状态由对应上述控制信息的DCI format的上述TCI域来指示。例如，通过该TCI域来指示该信道或信号与一个TCI状态相关联还是与两个TCI状态相关联。
根据本申请实施例的方法，当一个控制信息触发一个信道或信号时，如果该控制信息与两个TCI状态关联，则该控制信息包含TCI域。通过该方法，可以使得上述控制信息总是包含TCI域，该控制信息所触发的信号或信道的TCI状态由其所包含的TCI域指示，从而明确了该信号或信道的TCI状态，也使得对该信号或信道的TCI状态的指示更灵活。
在一些实施例中，控制信息与两个TCI状态相关是指：该控制信息的发送与两个TCI状态相关。
在一些实施例中，对应控制信息的DCI format包括TCI域是指：网络设备把该DCI format所关联的一个控制资源集合的参数tci-PresentInDCI设为使能；或者，网络设备把该DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI都设为使能；或者，网络设备配置该DCI format所关联的一个控制资源集合的参数tci-PresentInDCI-ForFormat1_2；或者，网络设备配置该DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2。
例如，上述条件用英文可以描述为：
Figure PCTCN2020121045-appb-000001
下面通过几个具体的示例对本申请实施例的方法进行说明。
图10是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的一个示意图。图10是从基站发送的角度进行描述，并且以PDSCH为例。
如图10所示，gNB在时隙n发送一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)，该PDSCH与一个TCI状态相关联。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format包含TCI域，例如，该DCI format为DCI format  1_1，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentInDCI。并且，tci-PresentInDCI被设为‘enable’；再例如，该DCI format为DCI format 1_2，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentForDCI-Format1-2。
此外，该PDCCH的TCI域所指示的TCI码点(codepoint)包括一个TCI状态，即TCI#3。
此外，该PDCCH对应的搜索空间为SS#1；该搜索空间SS#1对应的CORESET为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，该MAC-CE激活信令激活的第二TCI状态为TCI#2；此外，在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第二个符号所应用的TCI状态为TCI#2。
在这个示例中，当gNB发送一个调度PDSCH的DCI format并且该DCI format与两个TCI状态相关时(或者说，该DCI format经由两个TRP发送时)，为了避免该DCI format所调度的PDSCH的TCI状态不清楚，该DCI format一定包含TCI域。并且，在这个示例中，该TCI域指示了一个TCI状态，该TCI状态就是应用到该DCI format所调度的PDSCH的TCI状态，即TCI#3。
图11是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的一个示意图。图11是从基站发送的角度进行描述，并且以PDSCH为例。
如图11所示，gNB在时隙n发送一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)，该PDSCH与一个TCI状态相关联。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format包含TCI域，例如，该DCI format为DCI format 1_1，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentInDCI。并且，tci-PresentInDCI被设为‘enable’；再例如，该DCI format为DCI format 1_2，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentForDCI-Format1-2。
此外，该PDCCH的TCI域所指示的TCI码点(codepoint)包括两个TCI状态，即TCI#3和TCI#4。
此外，该PDCCH对应的搜索空间为SS#1；该搜索空间SS#1对应的CORESET 为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，该MAC-CE激活信令激活的第二TCI状态为TCI#2；此外，在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第二个符号所应用的TCI状态为TCI#2。
在这个示例中，当gNB发送一个调度PDSCH的DCI format并且该DCI format与两个TCI状态相关时(或者说，该DCI format经由两个TRP发送时)，为了避免该DCI format所调度的PDSCH的TCI状态不清楚，该DCI format一定包含TCI域。并且，在这个示例中，该TCI域指示了两个TCI状态，这两个TCI状态就是应用到该DCI format所调度的PDSCH的TCI状态，即TCI#3和TCI#4。
值得注意的是，以上图9仅对本申请实施例进行了示意性说明，但本申请不限于此。例如还可以增加其他的一些操作，或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图9的记载。
根据本申请实施例的方法，如前所述，当控制信息与两个TCI状态相关联时，明确了该控制信息所指示的信号或信道的TCI状态，也使得对该信号或信道的TCI状态的指示更灵活。
第三方面的实施例
本申请实施例提供一种无线通信方法，从终端设备侧进行说明。该方法是与第二方面的实施例的方法对应的终端设备侧的处理，其中与第二方面的实施例相同的内容不再重复说明。
图12是本申请实施例的无线通信方法的示意图，如图12所示，该方法包括：
1201：终端设备接收控制信息，所述控制信息与两个TCI状态相关，并且，对应所述控制信息的DCI format包括TCI域。
在本申请实施例中，如果控制信息与两个TCI状态相关，则对应该控制信息的DCI format包括TCI域。
在本申请实施例中，上述控制信息触发(trigger)一个信道或信号。该信道或信号可以是下行的信道或信号，例如PDSCH或CSI-RS；也可以是上行的信道或信号，例如PUSCH、PUCCH和/或SRS。本申请不限于此。
在本申请实施例中，上述信道或信号的TCI状态由对应上述控制信息的DCI format的上述TCI域来指示。例如，通过该TCI域来指示该信道或信号与一个TCI 状态相关联还是与两个TCI状态相关联。
根据本申请实施例的方法，当一个控制信息触发一个信道或信号时，如果该控制信息与两个TCI状态关联，则该控制信息包含TCI域。通过该方法，可以使得上述控制信息总是包含TCI域，该控制信息所触发的信号或信道的TCI状态由其所包含的TCI域指示，从而明确了该信号或信道的TCI状态，也使得对该信号或信道的TCI状态的指示更灵活。
在一些实施例中，控制信息与两个TCI状态相关是指，该控制信息的接收或监测与两个TCI状态相关联。
在一些实施例中，对应控制信息的DCI format包括TCI域是指：终端设备期望所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI被设为使能；或者，终端设备期望所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI都被设为使能；或者，终端设备期望所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI-ForFormat1_2被配置；或者，终端设备期望所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2都被配置。
例如，上述条件用英文可以描述为：
Figure PCTCN2020121045-appb-000002
下面通过几个具体的示例对本申请实施例的方法进行说明。
图13是PDCCH的TCI状态与该PDCCH所调度的单TCI的PDSCH的TCI状态之间的映射关系的一个示意图。图13是从终端设备(UE)接收的角度进行描述，并且以PDSCH为例。
如图13所示，UE在时隙n接收到一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)，该PDSCH与一个TCI状态相关联。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format包含TCI域，例如，该DCI format为DCI format 1_1，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentInDCI。并且，tci-PresentInDCI被设为‘enable’；再例如，该DCI format 为DCI format 1_2，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentForDCI-Format1-2。
此外，该PDCCH的TCI域所指示的TCI码点(codepoint)包括一个TCI状态，即TCI#3。
此外，该PDCCH对应的搜索空间为SS#1；该搜索空间SS#1对应的CORESET为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，该MAC-CE激活信令激活的第二TCI状态为TCI#2；此外，在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第二个符号所应用的TCI状态为TCI#2。
在这个示例中，当UE接收到一个调度PDSCH的DCI format并且该DCI format与两个TCI状态相关时(或者说，该DCI format经由两个TRP时)，该DCI format一定包含TCI域。也就是说，UE期待(expect)该DCI format包含TCI域。并且，在这个示例中，该TCI域指示了一个TCI状态，该TCI状态就是应用到该DCI format所调度的PDSCH的TCI状态，即TCI#3。
图14是PDCCH的TCI状态与该PDCCH所调度的多TCI的PDSCH的TCI状态之间的映射关系的一个示意图。图14是从终端设备(UE)接收的角度进行描述，并且以PDSCH为例。
如图14所示，UE在时隙n接收到一个PDCCH(控制信息)，该PDCCH调度一个PDSCH(信道或信号)，该PDSCH与一个TCI状态相关联。其中，该PDCCH与PDSCH之间的调度偏移大于或等于timeDurationForQCL。在本示例中，假设SCS＝60kHz，对应的UE能力timeDurationForQCL为7个符号。
此外，该PDCCH对应的DCI format包含TCI域，例如，该DCI format为DCI format 1_1，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentInDCI。并且，tci-PresentInDCI被设为‘enable’；再例如，该DCI format为DCI format 1_2，该DCI format所对应的CORESET(CORESET#1)配置了一个IE，即tci-PresentForDCI-Format1-2。
此外，该PDCCH的TCI域所指示的TCI码点(codepoint)包括两个TCI状态，即TCI#3和TCI#4。
此外，该PDCCH对应的搜索空间为SS#1；该搜索空间SS#1对应的CORESET为CORESET#1；该CORESET#1由MAC-CE激活信令激活两个TCI状态，即TCI#1和TCI#2，其中，该MAC-CE激活信令激活的第一TCI状态为TCI#1，该MAC-CE 激活信令激活的第二TCI状态为TCI#2；此外，在时隙n的第一个符号所应用的TCI状态为TCI#1，在时隙n的第二个符号所应用的TCI状态为TCI#2。
在这个示例中，当UE接收到一个调度PDSCH的DCI format并且该DCI format与两个TCI状态相关时(或者说，该DCI format经由两个TRP时)，该DCI format一定包含TCI域。也就是说，UE期待(expect)该DCI format包含TCI域。并且，在这个示例中，该TCI域指示了两个TCI状态，这两个TCI状态就是应用到该DCI format所调度的PDSCH的TCI状态，即TCI#3和TCI#4。
值得注意的是，以上图12仅对本申请实施例进行了示意性说明，但本申请不限于此。例如还可以增加其他的一些操作，或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图12的记载。
根据本申请实施例的方法，如前所述，当控制信息与两个TCI状态相关联时，明确了该控制信息所指示的信号或信道的TCI状态，也使得对该信号或信道的TCI状态的指示更灵活。
第四方面的实施例
本申请实施例提供一种无线通信装置，该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件。
图15是本申请实施例的无线通信装置的一个示意图，由于该装置解决问题的原理与第一方面的实施例的方法类似，因此其具体的实施可以参照第一方面的实施例的方法的实施，内容相同之处不再重复说明。
如图15所示，本申请实施例的无线通信装置1500包括：
接收单元1501，其接收控制信息，所述控制信息触发(triggers)一个信道或信号，所述控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应所述控制信息的DCI format不包含TCI域；
处理单元1502，其根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。
在本申请实施例中，所述信道或信号为下行的信道或信号或者为上行的信道或信号；所述下行的信道或信号为PDSCH或CSI-RS，所述上行的信道或信号为PUSCH、PUCCH以及SRS至少之一。
在一些实施例中，所述两个TCI状态中的一个是指以下至少之一：
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态；
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的由RRC信令指示的第一搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的时频资源所应用的TCI状态。
在一些实施例中，用于所述控制信息的接收或监测的时频资源为以下之一：
用于所述控制信息的接收或监测的最早的符号；
用于所述控制信息的接收或监测的最低索引(index)的PRB；
用于所述控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。
在一些实施例中，所述信道或信号为PDSCH；并且，所述PDSCH与第一TCI状态相关，所述第一TCI状态是指以下至少之一：
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态；
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的由RRC信令指示的第一搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的时频资源所应用的TCI状态。
在一些实施例中，用于所述控制信息的接收或监测的时频资源为以下之一：
用于所述控制信息的接收或监测的最早的符号；
用于所述控制信息的接收或监测的最低索引(index)的PRB；
用于所述控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。
在一些实施例中，所述PDSCH还与第二TCI状态相关，所述第二TCI状态是指：所述两个TCI状态中，除了所述第一TCI状态以外的TCI状态。
在一些实施例中，所述处理单元1502根据RRC信令或者所述DCI format的DCI域确定根据所述两个TCI状态发送或接收所述信道或信号。
在一些实施例中，所述处理单元1502根据RRC信令或者所述DCI format的DCI域确定根据所述两个TCI状态中的一个发送或接收所述信道或信号。
在一些实施例中，所述DCI format的DCI域为所述DCI format的TDRA域。
在一些实施例中，所述RRC信令用于指示所述信道或信号与一个TCI状态相关还是与两个TCI状态相关。由此，终端设备根据该RRC信令确定是根据所述两个TCI状态发送或接收所述信道或信号，还是根据所述两个TCI状态中的一个发送或接收所述信道或信号。
在一些实施例中，所述控制信息与所述信道或信号之间的时间偏移(time offset)大于或等于一个预定义的时间段(pre-determined time period)。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。本申请实施例的无线通信装置1500还可以包括其它部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图15中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
根据本申请实施例的装置，与第一方面的实施例相同的，能够避免上述信道或信号的TCI状态不明确，并且能够减少因为在控制信息中指示该信道或信号的TCI状 态而产生的开销。
第五方面的实施例
本申请实施例提供了一种无线通信装置，该装置例如可以是网络设备，也可以是配置于网络设备的某个或某些部件或者组件。
图16是本申请实施例的无线通信装置的一个示意图，由于该装置解决问题的原理与第二方面的实施例的方法类似，因此其具体的实施可以参照第二方面的实施例的方法的实施，内容相同之处不再重复说明。
如图16所示，本申请实施例的无线通信装置1600包括：
发送单元1601，其发送控制信息，所述控制信息与两个TCI状态相关，对应所述控制信息的DCI format包括TCI域。
在一些实施例中，如果所述控制信息与两个TCI状态相关，则对应所述控制信息的DCI format包括TCI域。
在一些实施例中，所述控制信息触发(trigger)一个信道或信号。
在本申请实施例中，所述信道或信号为下行的信道或信号或者为上行的信道或信号；所述下行的信道或信号为PDSCH或CSI-RS，所述上行的信道或信号为PUSCH、PUCCH以及SRS至少之一。
在一些实施例中，所述信道或信号的TCI状态由所述TCI域指示。例如，通过所述TCI域来指示所述信道或信号与一个TCI状态相关联还是与两个TCI状态相关联。
在一些实施例中，所述控制信息与两个TCI状态相关是指：所述控制信息的发送与两个TCI状态相关。
在一些实施例中，对应所述控制信息的DCI format包括TCI域是指以下之一：
所述网络设备把所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI设为使能；
所述网络设备把所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI都设为使能；
所述网络设备配置所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI-ForFormat1_2；
所述网络设备配置所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。本申请实施例的上行数据发送的指示装置1600还可以包括其它部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图16中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
根据本申请实施例，与第二方面的实施例相同的，当控制信息与两个TCI状态相关联时，明确了该控制信息所指示的信号或信道的TCI状态，也使得对该信号或信道的TCI状态的指示更灵活。
第六方面的实施例
本申请实施例提供一种无线通信装置，该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件。
图17是本申请实施例的无线通信装置的一个示意图，由于该装置解决问题的原理与第三方面的实施例的方法类似，因此其具体的实施可以参照第三方面的实施例的方法的实施，内容相同之处不再重复说明。
如图17所示，本申请实施例的无线通信装置1700包括：
接收单元1701，其接收控制信息，所述控制信息与两个TCI状态相关，并且，对应所述控制信息的DCI format包括TCI域。
在一些实施例中，如果所述控制信息与两个TCI状态相关，则对应所述控制信息的DCI format包括TCI域。
在一些实施例中，所述控制信息触发(trigger)一个信道或信号。
在本申请实施例中，所述信道或信号为下行的信道或信号或者为上行的信道或信号；所述下行的信道或信号为PDSCH或CSI-RS，所述上行的信道或信号为PUSCH、PUCCH以及SRS至少之一。
在一些实施例中，所述信道或信号的TCI状态由所述TCI域指示。例如，通过 所述TCI域来指示所述信道或信号与一个TCI状态相关联还是与两个TCI状态相关联。
在一些实施例中，所述控制信息与两个TCI状态相关是指，所述控制信息的接收或监测与两个TCI状态相关联。
在一些实施例中，所述DCI format包括TCI域是指以下之一：
所述终端设备期望所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI被设为使能；
所述终端设备期望所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI都被设为使能。
所述终端设备期望所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI-ForFormat1_2被配置；
所述终端设备期望所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2都被配置。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。本申请实施例的上行数据发送的指示装置1700还可以包括其它部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图17中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
根据本申请实施例，与第三方面的实施例相同的，当控制信息与两个TCI状态相关联时，明确了该控制信息所指示的信号或信道的TCI状态，也使得对该信号或信道的TCI状态的指示更灵活。
第七方面的实施例
本申请实施例提供了一种通信系统，图18是本申请实施例的通信系统的示意图，如图18所示，该通信系统1800包括网络设备1801和终端设备1802，为简单起见，图18仅以一个终端设备和一个网络设备为例进行说明，但本申请实施例不限于此。
在本申请实施例中，网络设备1801和终端设备1802之间可以进行现有的业务或 者未来可实施的业务传输。例如，这些业务可以包括但不限于：增强的移动宽带(eMBB)、大规模机器类型通信(mMTC)、高可靠低时延通信(URLLC)和车联网(V2X)通信，等等。
在一些实施例中，网络设备1801生成控制信息，并向终端设备1802发送该控制信息；终端设备1802接收该控制信息，该控制信息触发(triggers)一个信道或信号，该控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应该控制信息的DCI format不包含TCI域，终端设备1802根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。关于网络设备1801的相关内容，本申请不做限制。关于终端设备1802的相关内容，与第一方面和第四方面的实施例相同，此处省略说明。
在一些实施例中，网络设备1801生成控制信息，并向终端设备1802发送该控制信息，该控制信息与两个TCI状态相关，对应该控制信息的DCI format包括TCI域；终端设备1802接收该控制信息。关于网络设备1801的相关内容，与第二方面和第五方面的实施例相同，此处省略说明。关于终端设备1802的相关内容，与第三方面和第六方面的实施例系统，此处省略说明。
本申请实施例还提供一种终端设备，该终端设备例如可以是UE，但本申请不限于此，还可以是其它的设备。
图19是本申请实施例的终端设备的示意图。如图19所示，该终端设备1900可以包括处理器1901和存储器1902；存储器1902存储有数据和程序，并耦合到处理器1901。值得注意的是，该图是示例性的；还可以使用其它类型的结构，来补充或代替该结构，以实现电信功能或其它功能。
例如，处理器1901可以被配置为执行程序而实现如第一方面或第三方面的实施例所述的无线通信方法。
如图19所示，该终端设备1900还可以包括：通信模块1903、输入单元1904、显示器1905、电源1906。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，终端设备1900也并不是必须要包括图19中所示的所有部件，上述部件并不是必需的；此外，终端设备1900还可以包括图19中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种网络设备，该网络设备例如可以是基站(gNB)，但本 申请不限于此，还可以是其它的网络设备。
图20是本申请实施例的网络设备的示意图。如图33所示，网络设备2000可以包括：处理器(例如中央处理器CPU)2001和存储器2002；存储器2002耦合到处理器2001。其中该存储器2002可存储各种数据；此外还存储信息处理的程序，并且在中央处理器2001的控制下执行该程序。
例如，处理器2001可以被配置为执行程序而实现如第二方面的实施例所述的无线通信方法。
此外，如图20所示，网络设备2000还可以包括：收发机2003和天线2004等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备2000也并不是必须要包括图20中所示的所有部件；此外，网络设备2000还可以包括图20中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种计算机可读程序，其中当在终端设备中执行所述程序时，所述程序使得计算机在所述终端设备中执行第一方面或第三方面的实施例所述的方法。
本申请实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在终端设备中执行第一方面或第三方面的实施例所述的方法。
本申请实施例还提供一种计算机可读程序，其中当在网络设备中执行所述程序时，所述程序使得计算机在所述网络设备中执行第二方面的实施例所述的方法。
本申请实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在网络设备中执行第二方面的实施例所述的方法。
本申请以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。逻辑部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本申请还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用 现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改，这些变型和修改也在本申请的范围内。
关于本实施例公开的上述实施方式，还公开了如下的附记：
1、一种无线通信方法，其中，所述方法包括：
终端设备接收控制信息，所述控制信息触发(triggers)一个信道或信号，所述控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应所述控制信息的DCI format不包含TCI域；
所述终端设备根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。
2、根据附记1所述的方法，其中，所述两个TCI状态中的一个是指以下至少之一：
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态；
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的由RRC信令指示的第一搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的时频资源所应用的TCI状态。
3、根据附记2所述的方法，其中，用于所述控制信息的接收或监测的时频资源为以下之一：
用于所述控制信息的接收或监测的最早的符号；
用于所述控制信息的接收或监测的最低索引(index)的PRB；
用于所述控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。
4、根据附记1所述的方法，其中，所述信道或信号为PDSCH；并且，所述PDSCH与第一TCI状态相关，所述第一TCI状态是指以下至少之一：
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态；
用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的由RRC信令指示的第一 搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态；
用于接收或监测所述控制信息的时频资源所应用的TCI状态。
5、根据附记4所述的方法，其中，用于所述控制信息的接收或监测的时频资源为以下之一：
用于所述控制信息的接收或监测的最早的符号；
用于所述控制信息的接收或监测的最低索引(index)的PRB；
用于所述控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。
6、根据附记4所述的方法，其中，所述PDSCH还与第二TCI状态相关，所述第二TCI状态是指：
所述两个TCI状态中，除了所述第一TCI状态以外的TCI状态。
7、根据附记1所述的方法，其中，所述终端设备根据RRC信令或者所述DCI format的DCI域确定根据所述两个TCI状态发送或接收所述信道或信号。
8、根据附记1所述的方法，其中，所述终端设备根据RRC信令或者所述DCI format的DCI域确定根据所述两个TCI状态中的一个发送或接收所述信道或信号。
9、根据附记7或8所述的方法，其中，所述DCI format的DCI域为所述DCI format的TDRA域。
10、根据附记7或8所述的方法，其中，所述RRC信令用于指示所述信道或信号与一个TCI状态相关还是与两个TCI状态相关。
11、根据附记1所述的方法，其中，所述控制信息与所述信道或信号之间的时间偏移(time offset)大于或等于一个预定义的时间段(pre-determined time period)。
12、根据附记1至3、7-11任一项所述的方法，其中，所述信道或信号为下行的信道或信号或者为上行的信道或信号；所述下行的信道或信号为PDSCH或CSI-RS，所述上行的信道或信号为PUSCH、PUCCH以及SRS至少之一。
13、一种无线通信方法，其中，所述方法包括：
网络设备发送控制信息，所述控制信息与两个TCI状态相关，对应所述控制信息的DCI format包括TCI域。
14、根据附记13所述的方法，其中，如果所述控制信息与两个TCI状态相关， 则对应所述控制信息的DCI format包括TCI域。
15、根据附记13或14所述的方法，其中，所述控制信息触发(trigger)一个信道或信号。
16、根据附记13或14所述的方法，其中，所述控制信息与两个TCI状态相关是指：
所述控制信息的发送与两个TCI状态相关。
17、根据附记13或14所述的方法，其中，对应所述控制信息的DCI format包括TCI域是指：
所述网络设备把所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI设为使能。
18、根据附记13或14所述的方法，其中，对应所述控制信息的DCI format包括TCI域是指：
所述网络设备把所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI都设为使能。
19、根据附记13或14所述的方法，其中，对应所述控制信息的DCI format包括TCI域是指：
所述网络设备配置所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI-ForFormat1_2。
20、根据附记13或14所述的方法，其中，对应所述控制信息的DCI format包括TCI域是指：
所述网络设备配置所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2。
21、根据附记15所述的方法，其中，所述信道或信号为下行的信道或信号或者为上行的信道或信号；所述下行的信道或信号为PDSCH或CSI-RS，所述上行的信道或信号为PUSCH、PUCCH以及SRS至少之一。
22、根据附记15所述的方法，其中，所述信道或信号的TCI状态由所述TCI域指示。
23、根据附记22所述的方法，其中，所述信道或信号与一个TCI状态或者两个TCI状态相关联。
24、一种无线通信方法，其中，所述方法包括：
终端设备接收控制信息，所述控制信息与两个TCI状态相关，并且，对应所述控制信息的DCI format包括TCI域。
25、根据附记24所述的方法，其中，如果所述控制信息与两个TCI状态相关，则对应所述控制信息的DCI format包括TCI域。
26、根据附记24所述的方法，其中，所述控制信息触发(trigger)一个信道或信号。
27、根据附记24所述的方法，其中，所述控制信息与两个TCI状态相关是指，所述控制信息的接收或监测与两个TCI状态相关联。
28、根据附记24所述的方法，其中，所述DCI format包括TCI域是指，所述终端设备期望所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI被设为使能。
29、根据附记24所述的方法，其中，所述DCI format包括TCI域是指，所述终端设备期望所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI都被设为使能。
30、根据附记24所述的方法，其中，所述DCI format包括TCI域是指，所述终端设备期望所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI-ForFormat1_2被配置。
31、根据附记24所述的方法，其中，所述DCI format包括TCI域是指，所述终端设备期望所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2都被配置。
32、一种终端设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至12、24至31任一项所述的方法。
33、一种网络设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记13至23任一项所述的方法。
34、一种通信系统，包括终端设备和网络设备，其中，
所述终端设备被配置为执行附记24至31任一项所述的方法，所述网络设备被配置为执行附记13至23任一项所述的方法；或者
所述终端设备被配置为执行附记1至12任一项所述的方法。

Claims (20)

  1. 一种无线通信装置，配置于终端设备，其中，所述装置包括：
    接收单元，其接收控制信息，所述控制信息触发(triggers)一个信道或信号，所述控制信息的接收(reception)或监测(monitoring)与两个TCI状态相关，并且，对应所述控制信息的DCI format不包含TCI域；
    处理单元，其根据所述两个TCI状态或根据所述两个TCI状态中的一个发送或接收所述信道或信号。
  2. 根据权利要求1所述的装置，其中，所述两个TCI状态中的一个是指以下至少之一：
    用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态；
    用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态；
    用于接收或监测所述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态；
    用于接收或监测所述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态；
    用于接收或监测所述控制信息的两个搜索空间集合中的由RRC信令指示的第一搜索空间集合所对应的TCI状态；
    用于接收或监测所述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态；
    用于接收或监测所述控制信息的时频资源所应用的TCI状态。
  3. 根据权利要求2所述的装置，其中，用于所述控制信息的接收或监测的时频资源为以下之一：
    用于所述控制信息的接收或监测的最早的符号；
    用于所述控制信息的接收或监测的最低索引(index)的PRB；
    用于所述控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。
  4. 根据权利要求1所述的装置，其中，所述信道或信号为PDSCH；并且，所述 PDSCH与第一TCI状态相关，所述第一TCI状态是指以下至少之一：
    用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中由MAC-CE命令指示的第一TCI状态；
    用于接收或监测所述控制信息的控制资源集合(CORESET)的TCI状态中最低ID的TCI状态；
    用于接收或监测所述控制信息的两个控制资源集合中的由RRC信令指示的第一控制资源集合所应用的TCI状态；
    用于接收或监测所述控制信息的两个控制资源集合中的最低ID的控制资源集合所应用的TCI状态；
    用于接收或监测所述控制信息的两个搜索空间集合中的由RRC信令指示的第一搜索空间集合所对应的TCI状态；
    用于接收或监测所述控制信息的两个搜索空间集合中的最低ID的搜索空间集合所对应的TCI状态；
    用于接收或监测所述控制信息的时频资源所应用的TCI状态。
  5. 根据权利要求4所述的装置，其中，用于所述控制信息的接收或监测的时频资源为以下之一：
    用于所述控制信息的接收或监测的最早的符号；
    用于所述控制信息的接收或监测的最低索引(index)的PRB；
    用于所述控制信息的接收或监测的最早的符号内的最低索引(index)的PRB。
  6. 根据权利要求4所述的装置，其中，所述PDSCH还与第二TCI状态相关，所述第二TCI状态是指：
    所述两个TCI状态中，除了所述第一TCI状态以外的TCI状态。
  7. 根据权利要求1所述的装置，其中，所述处理单元根据RRC信令或者所述DCI format的DCI域确定根据所述两个TCI状态发送或接收所述信道或信号。
  8. 根据权利要求1所述的装置，其中，所述处理单元根据RRC信令或者所述DCI format的DCI域确定根据所述两个TCI状态中的一个发送或接收所述信道或信号。
  9. 根据权利要求7所述的装置，其中，所述DCI format的DCI域为所述DCI format的TDRA域。
  10. 根据权利要求7所述的装置，其中，所述RRC信令用于指示所述信道或信号与一个TCI状态相关还是与两个TCI状态相关。
  11. 根据权利要求1所述的装置，其中，所述控制信息与所述信道或信号之间的时间偏移(time offset)大于或等于一个预定义的时间段(pre-determined time period)。
  12. 根据权利要求1所述的装置，其中，所述信道或信号为下行的信道或信号或者为上行的信道或信号；所述下行的信道或信号为PDSCH或CSI-RS，所述上行的信道或信号为PUSCH、PUCCH以及SRS至少之一。
  13. 一种无线通信装置，配置于网络设备，其中，所述装置包括：
    发送单元，其发送控制信息，所述控制信息与两个TCI状态相关，对应所述控制信息的DCI format包括TCI域。
  14. 根据权利要求13所述的装置，其中，如果所述控制信息与两个TCI状态相关，则对应所述控制信息的DCI format包括TCI域。
  15. 根据权利要求13所述的装置，其中，对应所述控制信息的DCI format包括TCI域是指：
    所述网络设备把所述DCI format所关联的一个控制资源集合的参数tci-PresentInDCI设为使能。
  16. 根据权利要求13所述的装置，其中，对应所述控制信息的DCI format包括TCI域是指：
    所述网络设备把所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI都设为使能。
  17. 根据权利要求13所述的装置，其中，对应所述控制信息的DCI format包括TCI域是指：
    所述网络设备配置所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2。
  18. 一种无线通信装置，配置于终端设备，其中，所述装置包括：
    接收单元，其接收控制信息，所述控制信息与两个TCI状态相关，并且，对应所述控制信息的DCI format包括TCI域。
  19. 根据权利要求18所述的装置，其中，所述DCI format包括TCI域是指，所述终端设备期望所述DCI format所关联的所有的控制资源集合的参数 tci-PresentInDCI都被设为使能。
  20. 根据权利要求18所述的装置，其中，所述DCI format包括TCI域是指，所述终端设备期望所述DCI format所关联的所有的控制资源集合的参数tci-PresentInDCI-ForFormat1_2都被配置。
PCT/CN2020/121045 2020-10-15 2020-10-15 无线通信方法、装置和系统 Ceased WO2022077309A1 (zh)

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