WO2023201547A1 - Tci状态确定方法、装置、设备及存储介质 - Google Patents

Tci状态确定方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023201547A1
WO2023201547A1 PCT/CN2022/087766 CN2022087766W WO2023201547A1 WO 2023201547 A1 WO2023201547 A1 WO 2023201547A1 CN 2022087766 W CN2022087766 W CN 2022087766W WO 2023201547 A1 WO2023201547 A1 WO 2023201547A1
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Prior art keywords
tci
indication information
channel
tci states
signal
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PCT/CN2022/087766
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English (en)
French (fr)
Inventor
李明菊
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280001290.4A priority Critical patent/CN114938720A/zh
Priority to PCT/CN2022/087766 priority patent/WO2023201547A1/zh
Publication of WO2023201547A1 publication Critical patent/WO2023201547A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies

Definitions

  • the present application relates to the field of mobile communications, and in particular to a TCI status determination method, device, equipment and storage medium.
  • the network device can communicate with the terminal through TRP (Transmission Reception Point, sending and receiving point), and the network device can indicate a set of TCI (Transmission Configuration Indication, Transmission Configuration Indication) status to the terminal, a set of instructions
  • TRP Transmission Reception Point
  • the TCI status corresponds to a TRP.
  • the network device configures multiple TRPs for the terminal, how to indicate the TCI status corresponding to each TRP to the terminal is an urgent problem that needs to be solved.
  • the embodiments of the present application provide a TCI status determination method, device, equipment and storage medium, and provide a solution for determining the corresponding relationship between the TCI status and the channel/signal, and then perform data transmission with the network device based on the determined TCI status. Ensure the quality of the transmitted signal, thereby ensuring the reliability of the transmission.
  • the technical solutions are as follows:
  • a method for determining TCI status is provided, the method is executed by a terminal, and the method includes:
  • Receive instruction information sent by the network device indicates at least one set of transmission configuration indication TCI states, each set of TCI states includes at least one of an uplink TCI state and a downlink TCI state or each set of TCI states includes a combined TCI state, so The above joint TCI status applies to both uplink transmission and downlink transmission;
  • At least one set of TCI states corresponding to each channel/signal is determined.
  • a method for determining TCI status is provided, the method is executed by a network device, and the method includes:
  • the indication information indicating at least one set of transmission configuration indication TCI states, each set of TCI states including at least one of an uplink TCI state and a downlink TCI state or each set of TCI states including a joint TCI state, the joint TCI state TCI status applies to both uplink and downlink transmission;
  • the indication information is used for the terminal to determine at least one set of TCI states corresponding to each channel/signal.
  • a device for determining TCI status includes:
  • a receiving module configured to receive indication information sent by the network device.
  • the indication information indicates at least one set of transmission configuration indication TCI status.
  • Each set of TCI status includes at least one of an uplink TCI status and a downlink TCI status or each set of TCI status includes Joint TCI state, the joint TCI state applies to both uplink transmission and downlink transmission;
  • a determining module configured to determine at least one set of TCI states corresponding to each channel/signal according to the indication information.
  • a device for determining TCI status includes:
  • a sending module configured to send indication information to the terminal, the indication information indicating at least one set of transmission configuration indication TCI states, each set of TCI states including at least one of an uplink TCI state and a downlink TCI state or each set of TCI states including a joint TCI status, the joint TCI status applies to both uplink transmission and downlink transmission;
  • the indication information is used for the terminal to determine at least one set of TCI states corresponding to each channel/signal.
  • a terminal includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions.
  • the instructions are executed to implement the TCI status determination method as described above.
  • a network device includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and Executable instructions are executed to implement the TCI status determination method as described above.
  • a computer-readable storage medium stores executable program code.
  • the executable program code is loaded and executed by a processor to implement the TCI status determination method in the above aspect.
  • a chip is provided.
  • the chip includes programmable logic circuits and/or program instructions. When the chip is run on a terminal, it is used to implement the TCI status determination method as described above.
  • a computer program product is provided.
  • the computer program product is executed by a processor of a terminal, it is used to implement the TCI status determination method of the above aspect.
  • the terminal can determine at least one set of TCI status corresponding to each channel/signal based on the indication information, and each channel/signal is transmitted by the TRP of the network device, so each channel/signal is also determined.
  • At least one TRP corresponding to the channel/signal provides a solution for determining the corresponding relationship between the TCI status and the channel/signal, and then performs data transmission with the network device based on the determined TCI status to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission. sex.
  • Figure 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application
  • Figure 2 shows a block diagram of another communication system provided by an exemplary embodiment of the present application
  • Figure 3 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application
  • Figure 4 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application
  • Figure 5 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application
  • FIG. 6 shows a block diagram of a TCI status determination device provided by an exemplary embodiment of the present application
  • FIG. 7 shows a block diagram of another TCI status determination device provided by an exemplary embodiment of the present application.
  • Figure 8 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • word “if” as used herein may be interpreted as "when” or “when” or “in response to determining.”
  • the information including but not limited to user equipment information, user personal information, etc.
  • data including but not limited to data used for analysis, stored data, displayed data, etc.
  • signals involved in this application All are authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards of relevant countries and regions.
  • Figure 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • the communication system may include: a terminal 10 and a network device 20.
  • the number of terminals 10 is usually multiple, and one or more terminals 10 can be distributed in the cell managed by each network device 20 .
  • the terminal 10 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of user equipment (User Equipment, UE), mobile stations ( Mobile Station, MS) and so on.
  • UE User Equipment
  • MS Mobile Station
  • the network device 20 is a device deployed in the access network to provide wireless communication functions for the terminal 10 .
  • the above-mentioned devices that provide wireless communication functions for the terminal 10 are collectively referred to as network equipment.
  • a connection can be established between the network device 20 and the terminal 10 through an air interface, so that communication, including signaling and data interaction, can be performed through the connection.
  • the number of network devices 20 may be multiple, and communication between two adjacent network devices 20 may also be carried out in a wired or wireless manner.
  • the terminal 10 can switch between different network devices 20 , that is, establish connections with different network devices 20 .
  • the network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, transmission and reception points (Transmission Reception Point, TRP), and so on.
  • TRP Transmission Reception Point
  • the names of devices with network device functions may be different.
  • 5G NR New Radio, new wireless technology
  • they are called gNodeB or gNB.
  • the name "network device" may change.
  • a network device may contain one or more TRPs.
  • a network device is configured with 4 TRPs, namely TRP1, TRP2, TRP3 and TRP4.
  • the network device establishes communication connections with the terminal through these 4 TRPs, and then the network device can communicate with the terminal through 4 TRPs. communicate.
  • the network device sends indication information to the terminal, using the indication information to indicate at least one set of TCI states, and the channel/signal transmitted between the network device and the terminal corresponds to at least one set of TCI states.
  • each channel/signal corresponds to at least one TRP, that is, the TCI status corresponding to each TRP is determined.
  • FIG 3 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application.
  • the exemplary method can be applied to the terminal and network equipment shown in Figure 1.
  • the method includes at least part of the following content. :
  • Step 301 The network device sends instruction information to the terminal.
  • the instruction information indicates at least one set of TCI states.
  • Each set of TCI states includes at least one of the uplink TCI state and the downlink TCI state, or each set of TCI states includes a joint TCI state, and a joint TCI state. Applies to both uplink and downlink transmission.
  • the at least one set of TCI states indicated by the indication information in the embodiment of the present application is a unified TCI state (unified TCI state) for at least one channel/signal, also known as indicated TCI state (indicated TCI state).
  • a set of TCI state can be used for PDCCH (Physical Downlink Control Channel, physical downlink control channel), PDSCH (Physical Downlink Shared Channel, physical downlink shared channel), PUCCH (Physical Uplink Control Channel, physical uplink control channel), Transmission of at least two channels/signals of PUSCH (Physical Uplink Shared Channel), SRS (Sounding Reference Signal) and CSI-RS (Channel State Information Reference Signal).
  • the uplink TCI state is separate UL TCI state (separate uplink TCI state)
  • the downlink TCI state is separateDL TCI state (separate downlink TCI state)
  • the joint TCI state is joint TCI state.
  • Step 302 The terminal receives the instruction information sent by the network device.
  • the instruction information indicates at least one set of TCI states.
  • Each set of TCI states includes at least one of the uplink TCI state and the downlink TCI state, or each set of TCI states includes a joint TCI state.
  • the joint TCI The status applies to both upstream and downstream transmissions.
  • the network device configures at least one set of TCI states for the terminal through instruction information, and each set of TCI states in the at least one set of TCI states may include different TCI states.
  • each set of TCI states includes at least one of an uplink TCI state and a downlink TCI state, or each set of TCI states includes a combined TCI state.
  • Each set of TCI status in the embodiment of the present application can also be understood to include an uplink TCI status or a downlink TCI status or an uplink TCI status and a downlink TCI status or a combined TCI status.
  • each set of TCI status includes any of the following situations:
  • the joint TCI state applies to both uplink transmission and downlink transmission, that is to say, the joint TCI state can indicate the TCI state used for uplink transmission and the TCI state used for downlink transmission.
  • the network device indicates three sets of TCI states through indication information, namely TCI state 1, TCI state 2 and TCI state 3.
  • the TCI state 1 includes the uplink TCI state and the downlink TCI state.
  • TCI state 2 includes the joint TCI state.
  • TCI state State 3 includes the uplink TCI state.
  • the network device is configured with two TRPs, namely the first TRP and the second TRP. If the first TRP is configured in the joint TCI state, the set of TCI states corresponding to the first TRP includes the joint TCI state. , and if the first TRP is configured as a separate uplink TCI and/or a downlink TCI, then a set of TCI states corresponding to the first TRP includes at least one of a separate uplink TCI and a separate downlink TCI.
  • the set of TCI states corresponding to the second TRP includes the joint TCI state, and if the second TRP is configured as a separate uplink TCI and/or downlink TCI, then The set of TCI states corresponding to the second TRP includes at least one of a single uplink TCI and a single downlink TCI.
  • Step 303 The terminal determines at least one set of TCI states corresponding to each channel/signal based on the indication information.
  • the terminal after receiving the indication information, the terminal can determine at least one set of TCI states indicated by the indication information, and a channel/signal can also be transmitted between the terminal and the network device, then for the terminal , the terminal can determine at least one set of TCI states corresponding to each channel/signal based on the indication information.
  • the network device is configured with multiple TRPs, and the network device transmits channels/signals with the terminal through the configured multiple TRPs.
  • Each channel/signal needs to correspond to at least one set of TCI states.
  • the terminal needs to determine at least one set of TCI states corresponding to each channel/signal based on the indication information, that is, to determine at least one TRP corresponding to each channel/signal.
  • the embodiment of the present application can indicate a corresponding set of TCI status for each TRP in multiple TRPs through indication information, achieving the effect of indicating a unified TCI status through a single indication information in a multi-TRP scenario, ensuring that The signal quality of multi-TRP transmission signals based on unified TCI status is improved.
  • steps performed by the network device may form an embodiment alone, and the steps performed by the terminal may also form an embodiment alone, which is not limited in this application.
  • the terminal can determine at least one set of TCI states corresponding to each channel/signal based on the indication information, and each channel/signal is transmitted by the TRP of the network device, so the corresponding set of each channel/signal is also determined.
  • At least one TRP provides a solution for determining the corresponding relationship between the TCI status and the channel/signal, and then transmits data with the network device based on the determined TCI status to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission.
  • the terminal determines the TCI state corresponding to each channel/signal according to the indication information in a variety of ways. How to determine the TCI state corresponding to each channel/signal is described below.
  • the first method the terminal determines at least one set of TCI states corresponding to the channel/signal based on the group identifier corresponding to the TCI state indicated by the indication information.
  • the indication information indicates the group identifier corresponding to each set of TCI states, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the indication information indicates at least one set of TCI states, and the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the terminal also knows the group identifier corresponding to each channel/signal, so the channel/signal indicated by the group identifier can be determined based on the group identifier, and the terminal can then determine the channel/signal corresponding to each set of TCI states.
  • the indication information indicates TCI state 1, TCI state 2, and TCI state 3.
  • the indication information also indicates group identifier 1 corresponding to TCI state 1, group identifier 2 corresponding to TCI state 2, and group identifier 3 corresponding to TCI state 3.
  • the indication information when the number of at least one set of TCI states is less than the number of groups corresponding to the channel/signal, the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the indication information is used to indicate the group identifier corresponding to each set of TCI status, and then the terminal can determine the set of TCI status corresponding to each channel/signal based on the indication information.
  • the indication information indicates TCI state 1, TCI state 2 and TCI state 3, and all channels/signals of the terminal can be divided into 5 groups, corresponding to different group identifiers. Then the indication information also indicates the group identifier 1 corresponding to TCI state 1, the group identifier 3 corresponding to TCI state 2, and the group identifier 5 corresponding to TCI state 3.
  • the indication information indicates TCI state 1, and all channels/signals of the terminal can be divided into two groups, corresponding to different group identifiers. Then the indication information also indicates the group identifier 1 corresponding to TCI state 1.
  • the embodiment of the present application takes the indication information indicating the group identifier corresponding to each set of TCI status as an example for explanation.
  • the indication information indicates the corresponding relationship between the TCI status and the group identifier, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the second type the terminal determines at least one set of TCI states corresponding to the channel/signal based on the mapping relationship.
  • the terminal determines at least one set of TCI states corresponding to the channel/signal indicated by each group identifier according to the mapping relationship, where the mapping relationship includes the corresponding relationship between each group identifier and each set of TCI states.
  • the terminal after receiving the indication information, determines at least one set of TCI states indicated by the indication information, and the terminal also stores a mapping relationship. According to the mapping relationship, it can determine at least one set of TCI states corresponding to each channel/signal. A set of TCI states.
  • the first set of TCI states determined by the mapping relationship corresponds to group identifier 1
  • the second set of TCI states corresponds to group identifier 2
  • the first set of TCI states corresponds to the channel/signal of group identifier 1
  • the second set of TCI states corresponds to group Identifies the channel/signal of 2.
  • a set of TCI states corresponding to the channels/signals indicated by each group identifier is determined according to the mapping relationship, where , the number of at least one set of TCI states is an integer greater than 1.
  • the number of at least one set of TCI states is equal to the number of groups corresponding to the channel/signal, it means that the at least one set of TCI states indicated by each channel/signal and the indication information can be one by one.
  • the indication information can be one by one.
  • at least one set of TCI states corresponding to each channel/signal can be determined.
  • the at least one set of TCI states includes two sets of TCI states, or four sets of TCI states, or other numbers of TCI states, which are not limited in the embodiment of the present application.
  • the group ID may include at least one of the following:
  • PUSCH Physical Uplink Shared Channel, physical uplink shared channel
  • At least one group identifier can be configured for the channel/signal, and each group identifier corresponds to at least one set of TCI states. For example, if the channel is PDCCH, configure a CORESET group identifier for the CORESET corresponding to PDCCH; if the channel is PUCCH, configure a PUCCH group identifier for PUCCH; if the channel is PUSCH, configure a PUSCH group identifier for PUSCH. Each group The identifier corresponds to a set of TCI states, that is, a set of TCI states is configured for the channel/signal.
  • the PUCCH group identifier, PUSCH group identifier and CORESET group identifier in the embodiment of the present application may all be CORESET group identifiers, that is, CORESET group identifiers are configured for PUCCH and PUSCH.
  • the channel is PDCCH
  • two CORESET group identifiers are configured for the CORESET corresponding to the PDCCH
  • each CORESET group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal.
  • the channel is PUCCH
  • Each PUCCH group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal.
  • the channel is PUSCH, configure two PUSCH group identifiers for PUSCH.
  • Each PUSCH group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal. It should be noted that the PUCCH group identifier, PUSCH group identifier and CORESET group identifier in the embodiment of the present application may all be CORESET group identifiers, that is, CORESET group identifiers are configured for PUCCH and PUSCH.
  • one group identifier may be configured for one channel/signal, and two group identifiers may be configured for another channel/signal. For example, configure one group identifier for the CORESET corresponding to PDCCH, and configure two group identifiers for PUCCH. There are other combinations, too many to list here.
  • the terminal can determine the channel/signal corresponding to each set of TCI states in at least one set of TCI states using different methods, which expands the method of determining the channel/signal corresponding to each TCI state, and each Each channel/signal is transmitted by the TRP of the network device, so the TRP corresponding to each channel/signal is also determined, providing a solution to determine the corresponding relationship between the TCI status and the channel/signal, and then based on the determined TCI status and the network device Perform data transmission to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission.
  • the above embodiment describes how to determine the channel/signal corresponding to each set of TCI states, and the following describes how to indicate at least one set of TCI states.
  • the first type activate at least one set of TCI states through indication information.
  • the indication information includes first indication information that activates at least one set of TCI states.
  • the first indication information is used to activate at least one set of TCI states.
  • the activated at least one set of TCI states is the at least one set of TCI states indicated for the terminal in this application.
  • the activated at least one set of TCI states is a TCI state corresponding to a code point in the TCI state indication field in DCI (Downlink Control Information).
  • the DCI includes a TCI status indication field, and the TCI status indication field includes a code point through which the corresponding TCI status is indicated.
  • the first indication information activates at least one set of TCI states, and the at least one set of TCI states serves as the at least one set of TCI states indicated by the first indication information. That is to say, the first indication information activates at least one set of TCI states corresponding to one code point in the TCI state indication field, so no additional DCI signaling is required to indicate the code point corresponding to the TCI state field.
  • the TCI status indication field includes a first number of bits, different values indicated by the first number of bits correspond to different code points, and each code point corresponds to at least one set of TCI status.
  • the TCI status indication field includes 2 bits, and the 2 bits may include 00, 01, 10, and 11, that is, 2 bits may indicate 4 code points.
  • the first indication information activates the TCI state corresponding to the first code point, and the TCI state corresponding to the first code point may be TCI state #1, or the TCI state corresponding to the first code point may be TCI state #2 and TCI Status #3.
  • the network device activates at least one set of TCI states for the terminal, and when the terminal receives the first indication information, it can determine at least one set of TCI states activated by the first indication information.
  • the first indication information is MAC CE (Media Access Control Element). That is to say, the network device sends a MAC CE to the terminal, and the MAC CE is used to activate and indicate at least one set of TCI states.
  • MAC CE Media Access Control Control Element
  • the MAC CE is used to activate at least one set of TCI states.
  • the activated at least one set of TCI states is the at least one set of TCI states indicated for the terminal in this application.
  • the activated at least one set of TCI states is a TCI state corresponding to a code point in the TCI state indication field in the DCI.
  • the DCI includes a TCI status indication field, and the TCI status indication field can be used to indicate different code points, and the corresponding TCI status is indicated through the code points.
  • the MAC CE activates at least one set of TCI states, and at least one set of TCI states is used as at least one set of TCI states indicated by the MAC CE.
  • the MAC CE activates at least one set of TCI states corresponding to a code point in the TCI status indication field, so no additional DCI signaling is required to indicate the code point corresponding to the TCI status field.
  • the TCI status indication field includes a first number of bits, different values indicated by the first number of bits correspond to different code points, and each code point corresponds to at least one set of TCI status.
  • the network device activates at least one set of TCI states for the terminal.
  • the terminal receives the MAC CE, it can be determined that the MAC CE activates at least one set of TCI states.
  • At least one set of TCI states is directly activated through indication information.
  • the at least one set of TCI states that have been activated is the at least one set of TCI states indicated by the indication information for the terminal, and there is no need to indicate through DCI signaling. , save signaling overhead, and also provide a solution to determine the corresponding relationship between TCI status and channel/signal, and then perform data transmission with network equipment based on the determined TCI status to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission .
  • the second type activate at least one set of TCI states corresponding to at least two code points through indication information and then indicate one code point.
  • the indication information includes second indication information and third indication information.
  • the second indication information is used to activate the TCI status corresponding to at least two code points in the TCI status indication field in the DCI. Each code point corresponds to at least one set of TCI status.
  • Three indication messages indicate a code point.
  • the DCI includes a TCI status indication field, and the TCI status indication field includes a code point through which the corresponding TCI status is indicated.
  • the second indication information activates at least two code points, and each code point corresponds to at least one set of TCI states, and when the TCI states corresponding to at least two code points are activated, the If the third indication information indicates a code point, the terminal may determine at least one set of TCI states corresponding to one code point indicated by the third indication information as at least one set of TCI states indicated by the indication information.
  • the TCI status indication field includes a second number of bits, different values indicated by the second number of bits correspond to different code points, and the code points correspond to at least one set of TCI status.
  • the 3 bits may include 8 values, that is, 3 bits may indicate 8 code points.
  • the second indication information activates the TCI state corresponding to the second code point and the TCI state corresponding to the third code point, the second code point corresponds to TCI state #1 and TCI state #2, and the third code point corresponds to TCI state #3, If the code point indicated by the third indication information is the second code point, it means that the indicated TCI status is TCI status #1 and TCI status #2.
  • the second indication information is MAC CE
  • the third indication information is DCI. That is to say, the network device sends a MAC CE to the terminal, uses the MAC CE to activate the TCI state corresponding to at least two code points, and then uses the DCI to indicate a code point.
  • the DCI includes a TCI status indication field, and the TCI status indication field can indicate different code points, and the corresponding TCI status is indicated through the code points.
  • the MAC CE activates TCI states corresponding to at least two code points, and then indicates a code point through DCI. Then the terminal can determine at least one set of TCI states corresponding to a code point indicated by DCI as At least one set of TCI states indicated by the indication information.
  • the network device configures the terminal with at least one set of TCI states corresponding to each code point. Then when the terminal receives at least two code points activated by the MAC CE, it can determine the corresponding code point corresponding to each code point activated by the MAC CE. At least one set of TCI status, the network device then uses DCI to indicate one of the at least two code points that has been activated, that is, it indicates at least one set of TCI status corresponding to the code point.
  • the TCI status corresponding to at least two code points is activated through the second indication information, and then one of the activated code points is indicated through the third indication information, thereby improving It provides the diversity of at least one set of indicated TCI states, and also provides a solution for determining the corresponding relationship between the TCI state and the channel/signal, and then performs data transmission with the network device based on the determined TCI state to ensure the signal quality of the transmission. This ensures the reliability of transmission.
  • the channels/signals in the embodiments of the present application include multiple types. The following describes the channels/signals involved in the present application.
  • the channel/signal includes at least one of the following:
  • PDCCH Physical Downlink Control Channel
  • CORESET Control Space Set
  • the SS set (Search Space set, search space set) associated with the CORESET corresponding to the PDCCH in the embodiment of the present application includes various situations.
  • the SS set associated with the CORESET corresponding to the PDCCH includes USS sets (UE-specific Search Space set, terminal-specific search space set) and/or Type3-PDCCH CSS sets (Common Search Space set, public search space set) .
  • the SS set associated with the CORESET corresponding to the PDCCH includes USS sets.
  • the SS set associated with the CORESET corresponding to PDCCH includes Type3-PDCCH CSS sets.
  • the SS set associated with the CORESET corresponding to PDCCH includes USS sets and Type3-PDCCH CSS sets.
  • the SS set associated with the CORESET corresponding to the PDCCH includes at least other CSS sets except Type3-PDCCH CSS sets, and the CORESET uses the unified TCI state (unified TCI state).
  • the unified TCI state is at least one set of TCI states indicated by the network device through the indication information in the above embodiment.
  • the network device configures the unified TCI state for the terminal, and configures the CORESET to use the unified TCI state.
  • the CORESET corresponding to the PDCCH is CORESET#0, and the CORESET uses the unified TCI state.
  • the network device configures the unified TCI state for the terminal, and configures the CORESET to use the unified TCI state.
  • the terminal determines the downlink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines the downlink TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines a joint TCI state among at least one set of TCI states corresponding to each PDCCH based on the indication information, and the joint TCI state corresponds to a TCI state for downlink transmission.
  • the terminal determines the downlink TCI state or the joint TCI state as the PDSCH (Physical Downlink Shared Channel, physical downlink shared channel) or CSI-RS (Channel State Information Reference Signal, channel state information reference signal) scheduled by the PDCCH. TCI status.
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • CSI-RS Channel State Information Reference Signal, channel state information reference signal
  • the terminal uses the determined downlink TCI state or joint TCI state as the TCI state of PDSCH or CSI-RS.
  • the terminal determines the uplink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines the uplink TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines a joint TCI state among at least one set of TCI states corresponding to each PDCCH based on the indication information, and the joint TCI state corresponds to a TCI state for uplink transmission.
  • the uplink TCI state or the joint TCI state is determined as the TCI state of the PUCCH or PUSCH or SRS of each PDCCH schedule.
  • the terminal uses the determined downlink TCI state or the joint TCI state as TCI status of PUCCH or PUSCH or SRS.
  • the terminal uses the determined downlink TCI state or the joint TCI state as TCI status of PUCCH or PUSCH or SRS.
  • the network device will also configure a group identifier for the terminal through configuration information.
  • the network device sends configuration information to the terminal, and the terminal receives the configuration information, and the configuration information is used to configure at least one group identifier for the channel/signal.
  • Each group identification corresponds to a different set of TCI states.
  • the channel/signal is a PDCCH transmitted based on CORESET
  • use this configuration information to configure one or more group identifiers for a CORESET of the terminal, and the group corresponding to each group identifier corresponds to a different set of TCI states.
  • the channel/signal is PUCCH, or the channel/signal is PUSCH
  • use this configuration information to configure one or more group identifiers for a certain PUCCH resource or PUSCH of the terminal, and the group corresponding to each group identifier corresponds to a different one.
  • Set TCI status if the channel/signal is PUCCH, or the channel/signal is PUSCH, use this configuration information to configure one or more group identifiers for a certain PUCCH resource or PUSCH of the terminal, and the group corresponding to each group identifier corresponds to a different one.
  • the network device configures at least one group identifier for each channel/signal, then the identifier of the group corresponding to the channel/signal can be determined based on the group identifier, and then the identifier of the group corresponding to the channel/signal can be determined based on the at least one group identifier corresponding to each group identifier.
  • Set TCI status and then determine at least one set of TCI status corresponding to the channel/signal, ensuring the accuracy of at least one set of TCI status corresponding to each channel/signal, ensuring the signal quality of the transmission, and thus ensuring the reliability of the transmission .
  • Figure 4 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application.
  • the exemplary method can be applied to the terminal shown in Figure 1.
  • the method includes at least part of the following content:
  • Step 401 The terminal receives the instruction information sent by the network device.
  • the instruction information indicates at least one set of TCI states.
  • Each set of TCI states includes at least one of the uplink TCI state and the downlink TCI state or each set of TCI states includes a joint TCI state.
  • the joint TCI The status applies to both upstream and downstream transmissions.
  • the at least one set of TCI states indicated by the indication information in the embodiment of the present application is a unified TCI state for at least one channel/signal, also called indicated TCI state. It can be understood that a set of TCI state can be used for the transmission of at least two channels/signals of PDCCH, PDSCH, PUCCH, PUSCH, SRS and CSI-RS at the same time.
  • the uplink TCI state is separate UL TCI state (separate uplink TCI state)
  • the downlink TCI state is separateDL TCI state (separate downlink TCI state)
  • the joint TCI state is joint TCI state.
  • the network device configures at least one set of TCI states for the terminal through instruction information, and each set of TCI states in the at least one set of TCI states may include different TCI states.
  • each set of TCI states includes at least one of an uplink TCI state and a downlink TCI state, or each set of TCI states includes a combined TCI state.
  • Each set of TCI status in the embodiment of this application can also be understood to include an uplink TCI status or a downlink TCI status or an uplink TCI status and a downlink TCI status or a combined TCI status.
  • each set of TCI status includes any of the following situations:
  • the joint TCI state applies to both uplink transmission and downlink transmission, that is to say, the joint TCI state can indicate the TCI state used for uplink transmission and the TCI state used for downlink transmission.
  • the network device indicates three sets of TCI states through indication information, namely TCI state 1, TCI state 2 and TCI state 3.
  • the TCI state 1 includes the uplink TCI state and the downlink TCI state.
  • TCI state 2 includes the joint TCI state.
  • TCI state State 3 includes the uplink TCI state.
  • the network device is configured with two TRPs, namely the first TRP and the second TRP. If the first TRP is configured in the joint TCI state, the set of TCI states corresponding to the first TRP includes the joint TCI state. , and if the first TRP is configured as a separate uplink TCI and/or a downlink TCI, then a set of TCI states corresponding to the first TRP includes at least one of a separate uplink TCI and a separate downlink TCI.
  • the set of TCI states corresponding to the second TRP includes the joint TCI state, and if the second TRP is configured as a separate uplink TCI and/or downlink TCI, then The set of TCI states corresponding to the second TRP includes at least one of a single uplink TCI and a single downlink TCI.
  • Step 402 The terminal determines at least one set of TCI states corresponding to each channel/signal based on the indication information.
  • the terminal after receiving the indication information, the terminal can determine at least one set of TCI states indicated by the indication information, and a channel/signal can also be transmitted between the terminal and the network device, then for the terminal , the terminal can determine at least one set of TCI states corresponding to each channel/signal based on the indication information.
  • the network device is configured with multiple TRPs, and the network device transmits channels/signals with the terminal through the configured multiple TRPs.
  • Each channel/signal needs to correspond to at least one set of TCI states.
  • the terminal needs to determine at least one set of TCI states corresponding to each channel/signal based on the indication information, that is, to determine at least one TRP corresponding to each channel/signal.
  • the embodiment of the present application can indicate a corresponding set of TCI status for each TRP in multiple TRPs through indication information, achieving the effect of indicating a unified TCI status through a single indication information in a multi-TRP scenario, ensuring that The signal quality of multi-TRP transmission signals based on unified TCI status is improved.
  • the terminal can determine at least one set of TCI states corresponding to each channel/signal based on the indication information, and each channel/signal is transmitted by the TRP of the network device, so it also determines at least one set of TCI states corresponding to the channel/signal.
  • a TRP provides a solution for determining the corresponding relationship between the TCI status and the channel/signal, and then transmits data with the network device based on the determined TCI status to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission.
  • the terminal determines the TCI state corresponding to each channel/signal according to the indication information in a variety of ways. How to determine the TCI state corresponding to each channel/signal is described below.
  • the first method the terminal determines at least one set of TCI states corresponding to the channel/signal based on the group identifier corresponding to the TCI state indicated by the indication information.
  • the indication information indicates the group identifier corresponding to each set of TCI states, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the indication information indicates at least one set of TCI states, and the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the terminal also knows the group identifier corresponding to each channel/signal, so the channel/signal indicated by the group identifier can be determined based on the group identifier, and the terminal can then determine the channel/signal corresponding to each set of TCI states.
  • the indication information indicates TCI state 1, TCI state 2, and TCI state 3.
  • the indication information also indicates group identifier 1 corresponding to TCI state 1, group identifier 2 corresponding to TCI state 2, and group identifier 3 corresponding to TCI state 3.
  • the indication information when the number of at least one set of TCI states is less than the number of groups corresponding to the channel/signal, the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the indication information is used to indicate the group identifier corresponding to each set of TCI status, and then the terminal can determine the set of TCI status corresponding to each channel/signal based on the indication information.
  • the indication information indicates TCI state 1, TCI state 2 and TCI state 3, and all channels/signals of the terminal can be divided into 5 groups, corresponding to different group identifiers. Then the indication information also indicates the group identifier 1 corresponding to TCI state 1, the group identifier 3 corresponding to TCI state 2, and the group identifier 5 corresponding to TCI state 3.
  • the indication information indicates TCI state 1, and all channels/signals of the terminal can be divided into two groups, corresponding to different group identifiers. Then the indication information also indicates the group identifier 1 corresponding to TCI state 1.
  • the embodiment of the present application takes the indication information indicating the group identifier corresponding to each set of TCI status as an example for explanation.
  • the indication information indicates the corresponding relationship between the TCI status and the group identifier, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the second type the terminal determines at least one set of TCI states corresponding to the channel/signal based on the mapping relationship.
  • the terminal determines at least one set of TCI states corresponding to the channel/signal indicated by each group identifier according to the mapping relationship, where the mapping relationship includes the corresponding relationship between each group identifier and each set of TCI states.
  • the terminal after receiving the indication information, determines at least one set of TCI states indicated by the indication information, and the terminal also stores a mapping relationship. According to the mapping relationship, it can determine at least one set of TCI states corresponding to each channel/signal. A set of TCI states.
  • the first set of TCI states determined by the mapping relationship corresponds to group identifier 1
  • the second set of TCI states corresponds to group identifier 2
  • the first set of TCI states corresponds to the channel/signal of group identifier 1
  • the second set of TCI states corresponds to group Identifies the channel/signal of 2.
  • a set of TCI states corresponding to the channels/signals indicated by each group identifier is determined according to the mapping relationship, where , the number of at least one set of TCI states is an integer greater than 1.
  • the number of at least one set of TCI states is equal to the number of groups corresponding to the channel/signal, it means that the at least one set of TCI states indicated by each channel/signal and the indication information can be one by one.
  • the indication information can be one by one.
  • at least one set of TCI states corresponding to each channel/signal can be determined.
  • the at least one set of TCI states includes two sets of TCI states, or four sets of TCI states, or other numbers of TCI states, which are not limited in the embodiment of the present application.
  • the group ID may include at least one of the following:
  • PUCCH Physical Uplink Control Channel, physical uplink control channel
  • PUSCH Physical Uplink Shared Channel, physical uplink shared channel
  • At least one group identifier can be configured for the channel/signal, and each group identifier corresponds to at least one set of TCI states. For example, if the channel is PDCCH, configure a CORESET group identifier for the CORESET corresponding to PDCCH; if the channel is PUCCH, configure a PUCCH group identifier for PUCCH; if the channel is PUSCH, configure a PUSCH group identifier for PUSCH. Each group The identifier corresponds to a set of TCI states, that is, a set of TCI states is configured for the channel/signal.
  • the PUCCH group identifier, PUSCH group identifier and CORESET group identifier in the embodiment of the present application may all be CORESET group identifiers, that is, CORESET group identifiers are configured for PUCCH and PUSCH.
  • the channel is PDCCH
  • two CORESET group identifiers are configured for the CORESET corresponding to the PDCCH
  • each CORESET group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal.
  • the channel is PUCCH
  • Each PUCCH group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal.
  • the channel is PUSCH, configure two PUSCH group identifiers for PUSCH.
  • Each PUSCH group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal. It should be noted that the PUCCH group identifier, PUSCH group identifier and CORESET group identifier in the embodiment of the present application may all be CORESET group identifiers, that is, CORESET group identifiers are configured for PUCCH and PUSCH.
  • one group identifier may be configured for one channel/signal, and two group identifiers may be configured for another channel/signal. For example, configure one group identifier for the CORESET corresponding to PDCCH, and configure two group identifiers for PUCCH. There are other combinations, too many to list here.
  • the terminal can determine the channel/signal corresponding to each set of TCI states in at least one set of TCI states using different methods, which expands the method of determining the channel/signal corresponding to each TCI state, and each Each channel/signal is transmitted by the TRP of the network device, so the TRP corresponding to each channel/signal is also determined, providing a solution to determine the corresponding relationship between the TCI status and the channel/signal, and then based on the determined TCI status and the network device Perform data transmission to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission.
  • the first type activate at least one set of TCI states through indication information.
  • the indication information includes first indication information that activates at least one set of TCI states.
  • the first indication information is used to activate at least one set of TCI states.
  • the activated at least one set of TCI states is the at least one set of TCI states indicated for the terminal in this application.
  • the activated at least one set of TCI states is a TCI state corresponding to a code point in the TCI state indication field in DCI (Downlink Control Information).
  • the DCI includes a TCI status indication field, and the TCI status indication field includes a code point through which the corresponding TCI status is indicated.
  • the first indication information activates at least one set of TCI states, and the at least one set of TCI states serves as the at least one set of TCI states indicated by the first indication information. That is to say, the first indication information activates at least one set of TCI states corresponding to one code point in the TCI state indication field, so no additional DCI signaling is required to indicate the code point corresponding to the TCI state field.
  • the TCI status indication field includes a first number of bits, different values indicated by the first number of bits correspond to different code points, and each code point corresponds to at least one set of TCI status.
  • the TCI status indication field includes 2 bits, and the 2 bits may include 00, 01, 10, and 11, that is, 2 bits may indicate 4 code points.
  • the code point activated by the first indication information is the TCI state corresponding to the first code point, and the TCI state corresponding to the first code point may be TCI state #1, or the TCI state corresponding to the first code point may be TCI state #2 and TCI status #3.
  • the network device activates at least one set of TCI states for the terminal, and when the terminal receives the first indication information, it can determine at least one set of TCI states activated by the first indication information.
  • the first indication information is MAC CE (Media Access Control Element). That is to say, the network device sends a MAC CE to the terminal, and the MAC CE is used to activate and indicate at least one set of TCI states.
  • MAC CE Media Access Control Control Element
  • the MAC CE is used to activate at least one set of TCI states.
  • the activated at least one set of TCI states is the at least one set of TCI states indicated for the terminal in this application.
  • the activated at least one set of TCI states is the TCI state corresponding to a code point in the TCI state indication field in the DCI.
  • the DCI includes a TCI status indication field, and the TCI status indication field can be used to indicate different code points, and the corresponding TCI status is indicated through the code points.
  • the MAC CE activates at least one set of TCI states, and at least one set of TCI states is used as at least one set of TCI states indicated by the MAC CE.
  • the MAC CE activates at least one set of TCI states corresponding to a code point in the TCI status indication field, so no additional DCI signaling is required to indicate the code point corresponding to the TCI status field.
  • the TCI status indication field includes a first number of bits, different values indicated by the first number of bits correspond to different code points, and each code point corresponds to at least one set of TCI status.
  • the network device activates at least one set of TCI states for the terminal.
  • the terminal receives the MAC CE, it can determine at least one set of TCI states activated by the MAC CE.
  • At least one set of TCI states is directly activated through indication information.
  • the at least one set of TCI states that have been activated is the at least one set of TCI states indicated by the indication information for the terminal, and there is no need to indicate through DCI signaling. , save signaling overhead, and also provide a solution to determine the corresponding relationship between TCI status and channel/signal, and then perform data transmission with network equipment based on the determined TCI status to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission .
  • the second type activate at least one set of TCI states corresponding to at least two code points through indication information and then indicate one code point.
  • the indication information includes second indication information and third indication information.
  • the second indication information is used to activate the TCI status corresponding to at least two code points in the TCI status indication field in the DCI, and each code point corresponds to at least one set of TCI status,
  • the third indication information indicates a code point.
  • the DCI includes a TCI status indication field, and the TCI status indication field includes a code point through which the corresponding TCI status is indicated.
  • the second indication information activates at least two code points, and each code point corresponds to at least one set of TCI states, and when the TCI states corresponding to at least two code points are activated, the If the third indication information indicates a code point, the terminal may determine at least one set of TCI states corresponding to one code point indicated by the third indication information as at least one set of TCI states indicated by the indication information.
  • the TCI status indication field includes a second number of bits, different values indicated by the second number of bits correspond to different code points, and the code points correspond to at least one set of TCI status.
  • the 3 bits may include 8 values, that is, 3 bits may indicate 8 code points.
  • the second indication information activates the TCI state corresponding to the second code point and the TCI state corresponding to the third code point, the second code point corresponds to TCI state #1 and TCI state #2, and the third code point corresponds to TCI state #3, If the code point indicated by the third indication information is the second code point, it means that the indicated TCI status is TCI status #1 and TCI status #2.
  • the second indication information is MAC CE
  • the third indication information is DCI. That is to say, the network device sends a MAC CE to the terminal, uses the MAC CE to activate the TCI state corresponding to at least two code points, and then uses the DCI to indicate a code point.
  • the DCI includes a TCI status indication field, and the TCI status indication field can indicate different code points, and the corresponding TCI status is indicated through the code points.
  • the MAC CE activates TCI states corresponding to at least two code points, and then indicates a code point through DCI. Then the terminal can determine at least one set of TCI states corresponding to a code point indicated by DCI as At least one set of TCI states indicated by the indication information.
  • the network device configures the terminal with at least one set of TCI states corresponding to each code point. Then when the terminal receives at least two code points activated by the MAC CE, it can determine the corresponding code point corresponding to each code point activated by the MAC CE. At least one set of TCI status, the network device then uses DCI to indicate one of the at least two code points that has been activated, that is, it indicates at least one set of TCI status corresponding to the code point.
  • the TCI status corresponding to at least two code points is activated through the second indication information, and then one of the activated code points is indicated through the third indication information, thereby improving It provides the diversity of at least one set of indicated TCI states, and also provides a solution for determining the corresponding relationship between the TCI state and the channel/signal, and then performs data transmission with the network device based on the determined TCI state to ensure the signal quality of the transmission. This ensures the reliability of transmission.
  • the channel/signal includes at least one of the following:
  • the SS set (Search Space set, search space set) associated with the CORESET corresponding to the PDCCH in the embodiment of the present application includes various situations.
  • the SS set associated with the CORESET corresponding to the PDCCH includes USS sets (UE-specific Search Space set, terminal-specific search space set) and/or Type3-PDCCH CSS sets (Common Search Space set, public search space set) .
  • the SS set associated with the CORESET corresponding to the PDCCH includes at least other CSS sets except Type3-PDCCH CSS sets, and the CORESET uses the unified TCI state (unified TCI state).
  • the unified TCI state is at least one set of TCI states indicated by the network device through the indication information in the above embodiment.
  • the network device configures the unified TCI state for the terminal, and configures the CORESET to use the unified TCI state.
  • the CORESET corresponding to the PDCCH is CORESET#0, and the CORESET uses the unified TCI state.
  • the network device configures the unified TCI state for the terminal, and configures the CORESET to use the unified TCI state.
  • the terminal determines the downlink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines the downlink TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines a joint TCI state among at least one set of TCI states corresponding to each PDCCH based on the indication information, and the joint TCI state corresponds to a TCI state for downlink transmission.
  • the terminal determines the downlink TCI state or the joint TCI state as the TCI state of the PDSCH or CSI-RS scheduled by the PDCCH.
  • the terminal uses the determined downlink TCI state or joint TCI state as the TCI state of PDSCH or CSI-RS.
  • the terminal determines the uplink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines the uplink TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines a joint TCI state among at least one set of TCI states corresponding to each PDCCH based on the indication information, and the joint TCI state corresponds to a TCI state for uplink transmission.
  • the uplink TCI state or the joint TCI state is determined as the TCI state of the PUCCH or PUSCH or SRS of each PDCCH schedule.
  • the terminal uses the determined downlink TCI state or the combined TCI state as the TCI state of the PUCCH, PUSCH, or SRS.
  • the network device will also configure a group identifier for the terminal through configuration information.
  • the network device sends configuration information to the terminal, and the terminal receives the configuration information.
  • the configuration information is used to configure at least one group identifier for the channel/signal, and each group identifier corresponds to at least a different set of TCI states.
  • the channel/signal is a PDCCH transmitted based on CORESET
  • use this configuration information to configure one or more group identifiers for a CORESET of the terminal, and the group corresponding to each group identifier corresponds to a different set of TCI states.
  • the channel/signal is PUCCH or PUSCH
  • use this configuration information to configure one or more group identifiers for a certain PUCCH resource or PUSCH of the terminal.
  • the group corresponding to each group identifier corresponds to a different set of TCI states. .
  • the network device configures at least one group identifier for each channel/signal, then the identifier of the group corresponding to the channel/signal can be determined based on the group identifier, and then the identifier of the group corresponding to the channel/signal can be determined based on the at least one group identifier corresponding to each group identifier.
  • Set TCI status and then determine at least one set of TCI status corresponding to the channel/signal, ensuring the accuracy of at least one set of TCI status corresponding to each channel/signal, ensuring the signal quality of the transmission, and thus ensuring the reliability of the transmission .
  • Figure 5 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application.
  • the exemplary method can be applied to the network device shown in Figure 1.
  • the method includes at least part of the following content:
  • Step 501 The network device sends instruction information to the terminal.
  • the instruction information indicates at least one set of TCI states.
  • Each set of TCI states includes at least one of the uplink TCI state and the downlink TCI state, or each set of TCI states includes a joint TCI state, and a joint TCI state. It is applied to both uplink transmission and downlink transmission; the indication information is used for the terminal to determine a set of TCI status corresponding to each channel/signal.
  • the at least one set of TCI states indicated by the indication information in the embodiment of the present application is a unified TCI state for at least one channel/signal, also called indicated TCI state. It can be understood that a set of TCI state can be used for the transmission of at least two channels/signals of PDCCH, PDSCH, PUCCH, PUSCH, SRS and CSI-RS at the same time.
  • the uplink TCI state is separate UL TCI state (separate uplink TCI state)
  • the downlink TCI state is separateDL TCI state (separate downlink TCI state)
  • the joint TCI state is joint TCI state.
  • the network device configures at least one set of TCI states for the terminal through instruction information, and each set of TCI states in the at least one set of TCI states may include different TCI states.
  • each set of TCI states includes at least one of an uplink TCI state and a downlink TCI state, or each set of TCI states includes a combined TCI state.
  • Each set of TCI status in the embodiment of the present application can also be understood to include an uplink TCI status or a downlink TCI status or an uplink TCI status and a downlink TCI status or a combined TCI status.
  • each set of TCI status includes any of the following situations:
  • the joint TCI state applies to both uplink transmission and downlink transmission, that is to say, the joint TCI state can indicate the TCI state used for uplink transmission and the TCI state used for downlink transmission.
  • the network device indicates three sets of TCI states through indication information, namely TCI state 1, TCI state 2 and TCI state 3.
  • the TCI state 1 includes the uplink TCI state and the downlink TCI state.
  • TCI state 2 includes the joint TCI state.
  • TCI state State 3 includes the uplink TCI state.
  • the network device is configured with two TRPs, namely the first TRP and the second TRP. If the first TRP is configured in the joint TCI state, the set of TCI states corresponding to the first TRP includes the joint TCI state. , and if the first TRP is configured as a separate uplink TCI and/or a downlink TCI, then a set of TCI states corresponding to the first TRP includes at least one of a separate uplink TCI and a separate downlink TCI.
  • the set of TCI states corresponding to the second TRP includes the joint TCI state, and if the second TRP is configured as a separate uplink TCI and/or downlink TCI, then The set of TCI states corresponding to the second TRP includes at least one of a single uplink TCI and a single downlink TCI.
  • the network device is configured with multiple TRPs, and the network device transmits channels/signals with the terminal through the configured multiple TRPs.
  • Each channel/signal needs to correspond to at least one set of TCI states.
  • the terminal needs to determine at least one set of TCI states corresponding to each channel/signal based on the indication information, that is, to determine at least one TRP corresponding to each channel/signal.
  • the embodiment of the present application can indicate a corresponding set of TCI status for each TRP in multiple TRPs through indication information, achieving the effect of indicating a unified TCI status through a single indication information in a multi-TRP scenario, ensuring that The signal quality of multi-TRP transmission signals based on unified TCI status is improved.
  • the terminal can determine each channel/signal according to the indication information, and each channel/signal corresponds to at least one set of TCI status, and each channel/signal is transmitted by the TRP of the network device, so it is also determined At least one TRP corresponding to the channel/signal is provided, and a solution is provided to determine the corresponding relationship between the TCI status and the channel/signal, and then perform data transmission with the network device based on the determined TCI status to ensure the signal quality of the transmission, thereby ensuring the transmission accuracy. reliability.
  • the indication information is used for the terminal to determine the TCI state corresponding to each channel/signal. How to determine the TCI state corresponding to each channel/signal is described below.
  • Type 1 The indication information indicates the group identifier corresponding to the TCI status.
  • the indication information indicates the group identifier corresponding to each set of TCI states, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the indication information indicates at least one set of TCI states, and the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the terminal also knows the group identifier corresponding to each channel/signal, so the channel/signal indicated by the group identifier can be determined based on the group identifier, and the terminal can then determine the channel/signal corresponding to each set of TCI states.
  • the indication information indicates TCI state 1, TCI state 2, and TCI state 3.
  • the indication information also indicates group identifier 1 corresponding to TCI state 1, group identifier 2 corresponding to TCI state 2, and group identifier 3 corresponding to TCI state 3.
  • the indication information when the number of at least one set of TCI states is less than the number of groups corresponding to the channel/signal, the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the indication information is used to indicate the group identifier corresponding to each set of TCI status, and then the terminal can determine the set of TCI status corresponding to each channel/signal based on the indication information.
  • the indication information indicates TCI state 1, TCI state 2 and TCI state 3, and all channels/signals of the terminal can be divided into 5 groups, corresponding to different group identifiers. Then the indication information also indicates the group identifier 1 corresponding to TCI state 1, the group identifier 3 corresponding to TCI state 2, and the group identifier 5 corresponding to TCI state 3.
  • the indication information indicates TCI state 1, and all channels/signals of the terminal can be divided into two groups, corresponding to different group identifiers. Then the indication information also indicates the group identifier 1 corresponding to TCI state 1.
  • the embodiment of the present application takes the indication information indicating the group identifier corresponding to each set of TCI status as an example for explanation.
  • the indication information indicates the corresponding relationship between the TCI status and the group identifier, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the second type determine at least one set of TCI states corresponding to the channel/signal based on the mapping relationship.
  • the indication information is used for the terminal to determine at least one set of TCI states corresponding to the channel/signal indicated by each group identifier according to the mapping relationship; wherein the mapping relationship includes the correspondence between each group identifier and each set of TCI states. relation.
  • the terminal after receiving the indication information, determines at least one set of TCI states indicated by the indication information, and the terminal also stores a mapping relationship. According to the mapping relationship, it can determine at least one set of TCI states corresponding to each channel/signal. A set of TCI states.
  • the first set of TCI states determined by the mapping relationship corresponds to group identifier 1
  • the second set of TCI states corresponds to group identifier 2
  • the first set of TCI states corresponds to the channel/signal of group identifier 1
  • the second set of TCI states corresponds to group Identifies the channel/signal of 2.
  • the indication information is used for the terminal to determine the channel/signal corresponding to each group identifier according to the mapping relationship.
  • At least one set of TCI states where the number of at least one set of TCI states is an integer greater than 1.
  • the number of at least one set of TCI states is equal to the number of groups corresponding to the channel/signal, it means that the at least one set of TCI states indicated by each channel/signal and the indication information can be one by one. corresponding relationship, then based on the indication information and mapping relationship, a set of TCI states corresponding to each channel/signal can be determined.
  • the at least one set of TCI states includes two sets of TCI states, or four sets of TCI states, or other numbers of TCI states, which are not limited in the embodiment of the present application.
  • the group ID may include at least one of the following:
  • At least one group identifier can be configured for the channel/signal, and each group identifier corresponds to at least one set of TCI states. For example, if the channel is PDCCH, configure a CORESET group identifier for the CORESET corresponding to PDCCH; if the channel is PUCCH, configure a PUCCH group identifier for PUCCH; if the channel is PUSCH, configure a PUSCH group identifier for PUSCH. Each group The identifier corresponds to a set of TCI states, that is, a set of TCI states is configured for the channel/signal.
  • the PUCCH group identifier, PUSCH group identifier and CORESET group identifier in the embodiment of the present application may all be CORESET group identifiers, that is, CORESET group identifiers are configured for PUCCH and PUSCH.
  • the channel is PDCCH
  • two CORESET group identifiers are configured for the CORESET corresponding to the PDCCH
  • each CORESET group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal.
  • the channel is PUCCH
  • Each PUCCH group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal.
  • the channel is PUSCH, configure two PUSCH group identifiers for PUSCH.
  • Each PUSCH group identifier corresponds to a set of TCI states, that is, two sets of TCI states are configured for the channel/signal. It should be noted that the PUCCH group identifier, PUSCH group identifier and CORESET group identifier in the embodiment of the present application may all be CORESET group identifiers, that is, CORESET group identifiers are configured for PUCCH and PUSCH.
  • one group identifier may be configured for one channel/signal, and two group identifiers may be configured for another channel/signal. For example, configure one group identifier for the CORESET corresponding to PDCCH, and configure two group identifiers for PUCCH. There are other combinations, too many to list here.
  • the terminal can determine the channel/signal corresponding to each set of TCI states in at least one set of TCI states using different methods, which expands the method of determining the channel/signal corresponding to each TCI state, and each Each channel/signal is transmitted by the TRP of the network device, so the TRP corresponding to each channel/signal is also determined, providing a solution to determine the corresponding relationship between the TCI status and the channel/signal, and then based on the determined TCI status and the network device Perform data transmission to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission.
  • the first type activate at least one set of TCI states through indication information.
  • the indication information includes first indication information that activates at least one set of TCI states.
  • the first indication information is used to activate at least one set of TCI states.
  • the activated at least one set of TCI states is the at least one set of TCI states indicated for the terminal in this application.
  • the activated at least one set of TCI states is a TCI state corresponding to a code point in the TCI state indication field in DCI (Downlink Control Information).
  • the DCI includes a TCI status indication field, and the TCI status indication field includes a code point through which the corresponding TCI status is indicated.
  • the first indication information activates at least one set of TCI states, and the at least one set of TCI states serves as the at least one set of TCI states indicated by the first indication information. That is to say, the first indication information activates at least one set of TCI states corresponding to one code point in the TCI state indication field, so no additional DCI signaling is required to indicate the code point corresponding to the TCI state field.
  • the TCI status indication field includes a first number of bits, different values indicated by the first number of bits correspond to different code points, and each code point corresponds to at least one set of TCI status.
  • the TCI status indication field includes 2 bits, and the 2 bits may include 00, 01, 10, and 11, that is, 2 bits may indicate 4 code points.
  • the code point activated by the first indication information is the TCI state corresponding to the first code point, and the TCI state corresponding to the first code point may be TCI state #1, or the TCI state corresponding to the first code point may be TCI state #2 and TCI status #3.
  • the network device activates at least one set of TCI states for the terminal, and when the terminal receives the first indication information, it can determine at least one set of TCI states activated by the first indication information.
  • the first indication information is MAC CE (Media Access Control Element). That is to say, the network device sends a MAC CE to the terminal, and the MAC CE is used to activate and indicate at least one set of TCI states.
  • MAC CE Media Access Control Control Element
  • the MAC CE is used to activate at least one set of TCI states.
  • the activated at least one set of TCI states is the at least one set of TCI states indicated for the terminal in this application.
  • the activated at least one set of TCI states is a TCI state corresponding to a code point in the TCI state indication field in the DCI.
  • the DCI includes a TCI status indication field, and the TCI status indication field can be used to indicate different code points, and the corresponding TCI status is indicated through the code points.
  • the MAC CE activates at least one set of TCI states, and it can also be considered that the activated at least one set of TCI states is used as at least one set of TCI states indicated by the MAC CE.
  • the MAC CE activates at least one set of TCI states corresponding to a code point in the TCI status indication field, so no additional DCI signaling is required to indicate the code point corresponding to the TCI status field.
  • the TCI status indication field includes a first number of bits, different values indicated by the first number of bits correspond to different code points, and each code point corresponds to at least one set of TCI status.
  • the network device activates at least one set of TCI states for the terminal.
  • the terminal receives the MAC CE, it can determine at least one set of TCI states activated by the MAC CE.
  • At least one set of TCI states is directly activated through indication information.
  • the at least one set of TCI states that have been activated is the at least one set of TCI states indicated by the indication information for the terminal, and there is no need to indicate through DCI signaling. , save signaling overhead, and also provide a solution to determine the corresponding relationship between TCI status and channel/signal, and then perform data transmission with network equipment based on the determined TCI status to ensure the signal quality of the transmission, thereby ensuring the reliability of the transmission .
  • the second type activate at least one set of TCI states corresponding to at least two code points through indication information and then indicate one code point.
  • the indication information includes second indication information and third indication information.
  • the second indication information is used to activate the TCI status corresponding to at least two code points in the TCI status indication field in the DCI, and each code point corresponds to at least one set of TCI status,
  • the third indication information indicates a code point.
  • the DCI includes a TCI status indication field, and the TCI status indication field includes a code point through which the corresponding TCI status is indicated.
  • the second indication information activates at least two code points, and each code point corresponds to at least one set of TCI states, and when the TCI states corresponding to at least two code points are activated, the If the third indication information indicates a code point, the terminal may determine at least one set of TCI states corresponding to one code point indicated by the third indication information as at least one set of TCI states indicated by the indication information.
  • the TCI status indication field includes a second number of bits, different values indicated by the second number of bits correspond to different code points, and the code points correspond to at least one set of TCI status.
  • the 3 bits may include 8 values, that is, 3 bits may indicate 8 code points.
  • the second indication information activates the TCI state corresponding to the second code point and the TCI state corresponding to the third code point, the second code point corresponds to TCI state #1 and TCI state #2, and the third code point corresponds to TCI state #3, If the code point indicated by the third indication information is the second code point, it means that the indicated TCI status is TCI status #1 and TCI status #2.
  • the second indication information is MAC CE
  • the third indication information is DCI. That is to say, the network device sends a MAC CE to the terminal, uses the MAC CE to activate the TCI state corresponding to at least two code points, and then uses the DCI to indicate a code point.
  • the DCI includes a TCI status indication field, and the TCI status indication field can indicate different code points, and the corresponding TCI status is indicated through the code points.
  • the MAC CE activates TCI states corresponding to at least two code points, and then indicates a code point through DCI. Then the terminal can determine at least one set of TCI states corresponding to a code point indicated by DCI as At least one set of TCI states indicated by the indication information.
  • the network device configures the terminal with at least one set of TCI states corresponding to each code point. Then when the terminal receives at least two code points activated by the MAC CE, it can determine the corresponding code point corresponding to each code point activated by the MAC CE. At least one set of TCI status, the network device then uses DCI to indicate one of the at least two code points that has been activated, that is, it indicates at least one set of TCI status corresponding to the code point.
  • the TCI status corresponding to at least two code points is activated through the second indication information, and then one of the activated code points is indicated through the third indication information, thereby improving It provides the diversity of at least one set of indicated TCI states, and also provides a solution for determining the corresponding relationship between the TCI state and the channel/signal, and then performs data transmission with the network device based on the determined TCI state to ensure the signal quality of the transmission. This ensures the reliability of transmission.
  • the channel/signal includes at least one of the following:
  • the SS set (Search Space set, search space set) associated with the CORESET corresponding to the PDCCH in the embodiment of the present application includes various situations.
  • the SS set associated with the CORESET corresponding to the PDCCH includes USS sets (UE-specific Search Space set, terminal-specific search space set) and/or Type3-PDCCH CSS sets (Common Search Space set, public search space set) .
  • the SS set associated with the CORESET corresponding to the PDCCH includes at least other CSS sets except Type3-PDCCH CSS sets, and the CORESET uses the unified TCI state (unified TCI state).
  • the unified TCI state is at least one set of TCI states indicated by the network device through the indication information in the above embodiment.
  • the network device configures the unified TCI state for the terminal, and configures the CORESET to use the unified TCI state.
  • the CORESET corresponding to the PDCCH is CORESET#0, and the CORESET uses the unified TCI state.
  • the network device configures the unified TCI state for the terminal, and configures the CORESET to use the unified TCI state.
  • the terminal determines the downlink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines the downlink TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines a joint TCI state among at least one set of TCI states corresponding to each PDCCH based on the indication information, and the joint TCI state corresponds to a TCI state for downlink transmission.
  • the terminal determines the downlink TCI state or the joint TCI state as the TCI state of the PDSCH or CSI-RS scheduled by the PDCCH.
  • the terminal uses the determined downlink TCI state or joint TCI state as the TCI state of PDSCH or CSI-RS.
  • the terminal determines the uplink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines the uplink TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the terminal determines a joint TCI state among at least one set of TCI states corresponding to each PDCCH based on the indication information, and the joint TCI state corresponds to a TCI state for uplink transmission.
  • the uplink TCI state or the joint TCI state is determined as the TCI state of the PUCCH or PUSCH or SRS of each PDCCH schedule.
  • the terminal uses the determined downlink TCI state or the combined TCI state as the TCI state of the PUCCH, PUSCH, or SRS.
  • the network device will also configure a group identifier for the terminal through configuration information.
  • the network device sends configuration information to the terminal, and the terminal receives the configuration information, and the configuration information is used to configure at least one group identifier for the channel/signal.
  • Each group identification corresponds to a different set of TCI states.
  • the channel/signal is a PDCCH transmitted based on CORESET
  • use this configuration information to configure one or more group identifiers for a CORESET of the terminal, and the group corresponding to each group identifier corresponds to a different set of TCI states.
  • the channel/signal is PUCCH or PUSCH
  • use this configuration information to configure one or more group identifiers for a certain PUCCH resource or PUSCH of the terminal.
  • the group corresponding to each group identifier corresponds to a different set of TCI states. .
  • the network device configures at least one group identifier for each channel/signal, then the identifier of the group corresponding to the channel/signal can be determined based on the group identifier, and then the identifier of the group corresponding to the channel/signal can be determined based on the at least one group identifier corresponding to each group identifier.
  • Set the TCI status and then determine the TCI status corresponding to the channel/signal, ensuring the accuracy of at least one set of TCI status corresponding to each determined channel/signal, ensuring the signal quality of the transmission, and thus ensuring the reliability of the transmission.
  • FIG. 6 shows a block diagram of a TCI status determination device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the receiving module 601 is configured to receive instruction information sent by the network device.
  • the instruction information indicates at least one set of TCI states.
  • Each set of TCI states includes at least one of an uplink TCI state and a downlink TCI state or each set of TCI states includes a combined TCI state.
  • the joint TCI state applies to both uplink and downlink transmissions;
  • the determination module 602 is configured to determine at least one set of TCI states corresponding to each channel/signal according to the indication information.
  • the indication information also indicates the group identifier corresponding to each set of TCI states, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the indication information when the number of at least one set of TCI states is less than the number of groups corresponding to the channel/signal, the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the determination module 602 is also configured to determine at least one set of TCI states corresponding to the channel/signal indicated by each group identifier according to the mapping relationship;
  • the mapping relationship includes the corresponding relationship between each group identifier and each set of TCI status.
  • the determination module 602 is also configured to determine, according to the mapping relationship, the channel/signal corresponding to the channel/signal indicated by each group identifier when the number of at least one set of TCI states is the same as the number of groups corresponding to the channel/signal. At least one set of TCI states, where the number of at least one set of TCI states is an integer greater than 1.
  • the indication information includes first indication information activating at least one set of TCI states.
  • the activated at least one set of TCI states is a TCI state corresponding to a code point in the TCI state indication field in the DCI.
  • the indication information includes second indication information and third indication information.
  • the second indication information is used to activate the TCI status corresponding to at least two code points of the TCI status indication field in the DCI, and each code point corresponds to at least one Set TCI status, the third indication information indicates a code point.
  • the first indication information and the second indication information are MAC CE, and the third indication information is DCI.
  • the channel/signal includes at least one of the following:
  • the SS sets associated with the CORESET corresponding to the PDCCH include USS sets and/or Type3-PDCCH CSS sets.
  • the SS set associated with the CORESET corresponding to the PDCCH includes at least other CSS sets except Type3-PDCCH CSS sets, and the CORESET uses the unified TCI state.
  • the CORESET corresponding to the PDCCH is CORESET#0, and the CORESET uses the unified TCI state.
  • the determination module 602 is further configured to determine the downlink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the determining module 602 is also configured to determine the downlink TCI state or the joint TCI state as the TCI state of the PDSCH or CSI-RS scheduled by the PDCCH.
  • the determination module 602 is further configured to determine the uplink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH based on the indication information.
  • the determination module 602 is also configured to determine the uplink TCI state or the joint TCI state as the TCI state of the physical uplink control channel PUCCH or physical uplink shared channel PUSCH or sounding reference signal SRS scheduled for each PDCCH.
  • the group identification includes at least one of the following:
  • the receiving module 601 is also used to receive configuration information.
  • the configuration information is used to configure at least one group identifier for the channel/signal, and each group identifier corresponds to a different set of TCI states.
  • FIG. 7 shows a block diagram of a TCI status determination device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the sending module 701 is configured to send indication information to the terminal.
  • the indication information indicates at least one set of transmission configuration indication TCI status.
  • Each set of TCI status includes at least one of an uplink TCI status and a downlink TCI status or each set of TCI status includes a joint TCI status. , the joint TCI status is applied to both uplink transmission and downlink transmission;
  • the indication information is used for the terminal to determine at least one set of TCI states corresponding to each channel/signal.
  • the indication information also indicates the group identifier corresponding to each set of TCI states, and the group identifier is the identifier of the group corresponding to the channel/signal.
  • the indication information when the number of at least one set of TCI states is less than the number of groups corresponding to the channel/signal, the indication information also indicates the group identifier corresponding to each set of TCI states.
  • the indication information is used for the terminal to determine at least one set of TCI states corresponding to the channel/signal indicated by each group identifier according to the mapping relationship;
  • the mapping relationship includes the corresponding relationship between each group identifier and each set of TCI status.
  • the indication information is used for the terminal to determine at least the channel/signal corresponding to each group identifier according to the mapping relationship.
  • the indication information includes first indication information activating at least one set of TCI states.
  • the at least one set of activated TCI states is a TCI state corresponding to a code point in the TCI state indication field in the downlink control information DCI.
  • the indication information includes second indication information and third indication information.
  • the second indication information is used to activate the TCI status corresponding to at least two code points of the TCI status indication field in the downlink control information DCI.
  • Each code point Corresponding to at least one set of TCI states, the third indication information indicates a code point.
  • the first indication information and the second indication information are MAC CE, and the third indication information is DCI.
  • the channel/signal includes at least one of the following:
  • the CORESET-associated search space set SS set corresponding to the PDCCH includes the public search space set USS sets and/or the Type 3 physical downlink control channel Type3-PDCCH specific search space set CSS sets.
  • the SS set associated with the CORESET corresponding to the PDCCH includes at least other CSS sets except Type3-PDCCH CSS sets, and the CORESET uses a unified unified TCI state.
  • the CORESET corresponding to the PDCCH is CORESET#0, and the CORESET uses the unified TCI state.
  • the indication information is also used for the terminal to determine the downlink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH.
  • the indication information is also used for the terminal to determine the uplink TCI state or the joint TCI state in at least one set of TCI states corresponding to each PDCCH.
  • the group identification includes at least one of the following:
  • the sending module 701 is also used to send configuration information.
  • the configuration information is used to configure at least one group identifier for the channel/signal, and each group identifier corresponds to a different set of TCI states.
  • Figure 8 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • the communication device includes: a processor 801, a receiver 802, a transmitter 803, a memory 804 and a bus 805.
  • the processor 801 includes one or more processing cores.
  • the processor 801 executes various functional applications and information processing by running software programs and modules.
  • the receiver 802 and the transmitter 803 can be implemented as a communication component, and the communication component can be a communication chip.
  • Memory 804 is connected to processor 801 through bus 805.
  • the memory 804 can be used to store at least one program code, and the processor 801 is used to execute the at least one program code to implement each step in the above method embodiment.
  • Memory 1004 may be implemented by any type of volatile or non-volatile storage device, or combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable read-only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Static Read-Only Memory (SRAM), Read-Only Memory (ROM), Magnetic Memory, Flash Memory, Programmable Read-Only Memory (PROM).
  • EEPROM electrically erasable programmable read-only Memory
  • EPROM Erasable Programmable Read-Only Memory
  • SRAM Static Read-Only Memory
  • ROM Read-Only Memory
  • Magnetic Memory Flash Memory
  • PROM Programmable Read-Only Memory
  • a computer-readable storage medium is also provided, with executable program code stored in the readable storage medium, and the executable program code is loaded and executed by the processor to implement each of the above methods.
  • the example provides a TCI status determination method performed by a communication device.
  • a chip is provided.
  • the chip includes programmable logic circuits and/or program instructions. When the chip is run on a terminal or network device, it is used to implement as provided by various method embodiments. TCI status determination method.
  • a computer program product is provided.
  • the computer program product is executed by a processor of a terminal or a network device, it is used to implement the TCI status determination method provided by each of the above method embodiments.

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Abstract

本申请公开了一种TCI状态确定方法、装置、设备及存储介质，涉及移动通信领域。该方法包括：终端接收网络设备发送的指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；根据所述指示信息，确定每个信道/信号对应的一套TCI状态。本申请提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。

Description

TCI状态确定方法、装置、设备及存储介质 技术领域
本申请涉及移动通信领域，特别涉及一种TCI状态确定方法、装置、设备及存储介质。
背景技术
在移动通信系统中，网络设备可以通过TRP(Transmission Reception Point，发送接收点)与终端进行通信，并且网络设备可以为终端指示一套TCI(Transmission Configuration Indication，传输配置指示)状态，指示的一套TCI状态对应一个TRP。但是，若网络设备为终端配置了多个TRP，如何为终端指示每个TRP对应的TCI状态是亟需解决的问题。
发明内容
本申请实施例提供了一种TCI状态确定方法、装置、设备及存储介质，提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。所述技术方案如下：
根据本申请的一个方面，提供了一种TCI状态确定方法，所述方法由终端执行，所述方法包括：
接收网络设备发送的指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
根据所述指示信息，确定每个信道/信号对应的至少一套TCI状态。
根据本申请的一个方面，提供了一种TCI状态确定方法，所述方法由网络设备执行，所述方法包括：
向终端发送指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态 包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
所述指示信息用于供所述终端确定每个信道/信号对应的至少一套TCI状态。
根据本申请的一个方面，提供了一种TCI状态确定装置，所述装置包括：
接收模块，用于接收网络设备发送的指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
确定模块，用于根据所述指示信息，确定每个信道/信号对应的至少一套TCI状态。
根据本申请的一个方面，提供了一种TCI状态确定装置，所述装置包括：
发送模块，用于向终端发送指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
所述指示信息用于供所述终端确定每个信道/信号对应的至少一套TCI状态。
根据本申请的一个方面，提供了一种终端，终端包括：处理器；与处理器相连的收发器；用于存储处理器的可执行指令的存储器；其中，处理器被配置为加载并执行可执行指令以实现如上述方面的TCI状态确定方法。
根据本申请的一个方面，提供了一种网络设备，网络设备包括：处理器；与处理器相连的收发器；用于存储处理器的可执行指令的存储器；其中，处理器被配置为加载并执行可执行指令以实现如上述方面的TCI状态确定方法。
根据本申请的一个方面，提供了一种计算机可读存储介质，可读存储介质中存储有可执行程序代码，可执行程序代码由处理器加载并执行以实现如上述方面的TCI状态确定方法。
根据本申请的一个方面，提供了一种芯片，芯片包括可编程逻辑电路和/或程序指令，当芯片在终端上运行时，用于实现如上述方面的TCI状态确定方法。
根据本申请的一个方面，提供了一种计算机程序产品，当计算机程序产品被终端的处理器执行时，其用于实现上述方面的TCI状态确定方法。
本申请实施例提供的TCI状态确定方案中，终端可以根据指示信息确定每个信道/信号对应的至少一套TCI状态，并且每个信道/信号由网络设备的TRP传输，因此也确定了每个信道/信号对应的至少一个TRP，提供了一种确定TCI 状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，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他的附图。
图1示出了本申请一个示例性实施例提供的通信系统的框图；
图2示出了本申请一个示例性实施例提供的另一种通信系统的框图；
图3示出了本申请一个示例性实施例提供的TCI状态确定方法的流程图；
图4示出了本申请一个示例性实施例提供的TCI状态确定方法的流程图；
图5示出了本申请一个示例性实施例提供的TCI状态确定方法的流程图；
图6示出了本申请一个示例性实施例提供的一种TCI状态确定装置的框图；
图7示出了本申请一个示例性实施例提供的另一种TCI状态确定装置的框图；
图8示出了本申请一个示例性实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也是旨在包括多数形式，除非上下文清楚地表示其它含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本申请可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本申请范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，例如，在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
需要说明的是，本申请所涉及的信息(包括但不限于用户设备信息、用户个人信息等)、数据(包括但不限于用于分析的数据、存储的数据、展示的数据等)以及信号，均为经用户授权或者经过各方充分授权的，且相关数据的收集、使用和处理需要遵守相关国家和地区的相关法律法规和标准。
下面，对本申请的应用场景进行说明：
图1示出了本申请一个示例性实施例提供的通信系统的框图，该通信系统可以包括：终端10和网络设备20。
终端10的数量通常为多个，每一个网络设备20所管理的小区内可以分布一个或多个终端10。终端10可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(User Equipment，UE)、移动台(Mobile Station，MS)等等。为方便描述，本申请实施例中，上面提到的设备统称为终端。
网络设备20是一种部署在接入网中用以为终端10提供无线通信功能的装置。为方便描述，本申请实施例中，上述为终端10提供无线通信功能的装置统称为网络设备。网络设备20与终端10之间可以通过空口建立连接，从而通过该连接进行通信，包括信令和数据的交互。网络设备20的数量可以有多个，两个邻近的网络设备20之间也可以通过有线或者无线的方式进行通信。终端10可以在不同的网络设备20之间进行切换，也即与不同的网络设备20建立连接。
该网络设备20可以包括各种形式的宏基站，微基站，中继站，接入点，发送接收点(Transmission Reception Point，TRP)等等。在采用不同的无线接入技术的系统中，具备网络设备功能的设备的名称可能会有所不同，例如在5G NR(New Radio，新的无线技术)系统中，称为gNodeB或者gNB。随着通信技术的演进，“网络设备”这一名称可能会变化。
在一些实施例中，一个网络设备可以包含一个或多个TRP。
例如，如图2所示，一个网络设备配置4个TRP，分别为TRP1、TRP2、TRP3和TRP4，网络设备通过这4个TRP与终端建立通信连接，进而则网络设 备可以通过4个TRP与终端进行通信。
另外，网络设备向终端发送指示信息，通过该指示信息来指示至少一套TCI状态，并且网络设备与终端之间传输的信道/信号对应至少一套TCI状态。其中，每个信道/信号对应至少一个TRP，也就是确定每个TRP对应的TCI状态。
图3示出了本申请一个示例性实施例提供的TCI状态确定方法的流程图，示例性的可以应用于如图1所示的终端和网络设备中，该方法包括以下内容中的至少部分内容：
步骤301：网络设备向终端发送指示信息，指示信息指示至少一套TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，联合TCI状态同时应用于上行传输和下行传输。
本申请实施例中的指示信息指示的至少一套TCI状态为用于至少一种信道/信号的unified TCI state(统一TCI状态)，也称为indicated TCI state(指示TCI状态)。可以理解为一套TCI state可以同时用于PDCCH(Physical Downlink Control Channel，物理下行控制信道)，PDSCH(Physical Downlink Shared Channel，物理下行共享信道)，PUCCH(Physical Uplink Control Channel，物理上行控制信道)，PUSCH(Physical Uplink Shared Channel，物理上行共享信道)，SRS(Sounding Reference Signal，探测参考信号)和CSI-RS(Channel State Information Reference Signal，信道状态信息参考信号)的至少两种信道/信号的传输。
本申请实施例中的上行TCI状态为separate UL TCI state(单独上行TCI状态)，下行TCI状态为separateDL TCI state(单独下行TCI状态)，联合TCI状态为joint TCI state。
步骤302：终端接收网络设备发送的指示信息，指示信息指示至少一套TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，联合TCI状态同时应用于上行传输和下行传输。
在本申请实施例中，网络设备通过指示信息为终端配置至少一套TCI状态，并且至少一套TCI状态中的每套TCI状态包括的TCI状态可能不同。
其中，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态。本申请实施例中的每套TCI状态也可以理解为包括上行TCI状态或下行TCI状态或上行TCI状态和下行TCI状态或联合TCI状态。
也就是说，每套TCI状态包括以下任一种情况：
(1)上行TCI状态。
(2)下行TCI状态。
(3)上行TCI状态和下行TCI状态。
(4)联合TCI状态。其中，该联合TCI状态同时应用于上行传输和下行传输，也就是说该联合TCI状态既可以指示用于上行传输的TCI状态，也可以指示用于下行传输的TCI状态。
例如，网络设备通过指示信息指示了3套TCI状态，分别为TCI状态1、TCI状态2和TCI状态3，该TCI状态1包括上行TCI状态和下行TCI状态，TCI状态2包括联合TCI状态，TCI状态3包括上行TCI状态。
在一些实施例中，网络设备配置了两个TRP，分别为第一TRP和第二TRP，若第一TRP被配置为联合TCI状态，则该第一TRP对应的一套TCI状态包括联合TCI状态，而若该第一TRP被配置为单独的上行TCI和/或下行TCI，则第一TRP对应的一套TCI状态包括单独上行TCI和单独下行TCI中的至少一项。类似的，若第二TRP被配置为联合TCI状态，则该第二TRP对应的一套TCI状态包括联合TCI状态，而若该第二TRP被配置为单独的上行TCI和/或下行TCI，则第二TRP对应的一套TCI状态包括单独上行TCI和单独下行TCI中的至少一项。
步骤303：终端根据指示信息，确定每个信道/信号对应的至少一套TCI状态。
在本申请实施例中，终端接收到该指示信息后，即可确定该指示信息指示的至少一套TCI状态，并且终端与网络设备之间还可以传输有信道/信号，则对于该终端来说，该终端可以根据该指示信息确定每个信道/信号对应的至少一套TCI状态。
在一些实施例中，网络设备配置有多个TRP，并且网络设备通过配置的多个TRP与终端之间传输信道/信号，则对于每个信道/信号来说，均需要对应至少一套TCI状态，也就是说终端需要根据指示信息确定每个信道/信号对应的至少一套TCI状态，也即是确定每个信道/信号对应的至少一个TRP。
也就是说，本申请实施例通过指示信息可以为多个TRP中的每个TRP指示对应的一套TCI状态，实现了在多TRP场景下通过单一的指示信息来指示统一TCI状态的效果，保证了基于统一TCI状态的多TRP传输的信号的信号质量。
需要说明的是，网络设备所执行的步骤可以单独形成一个实施例，终端所执行的步骤也可以单独形成一个实施例，本申请对此不作限定。
本申请实施例提供方案中，终端可以根据指示信息确定每个信道/信号对应的至少一套TCI状态，并且每个信道/信号由网络设备的TRP传输，因此也确定了每个信道/信号对应的至少一个TRP，提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
在图3所示的实施例的基础上，终端根据指示信息确定每个信道/信号对应的TCI状态包括多种方式，下面对如何确定每个信道/信号对应的TCI状态进行说明。
第一种：终端根据指示信息指示的TCI状态对应的组标识确定信道/信号对应的至少一套TCI状态。
在一些实施例中，指示信息指示每套TCI状态对应的组标识，该组标识为信道/信号对应的组的标识。
在本申请实施例中，终端接收到该指示信息后，由于该指示信息指示至少一套TCI状态，并且该指示信息还指示每套TCI状态对应的组标识。而终端又知道每个信道/信号对应的组标识，因此根据该组标识即可确定该组标识指示的信道/信号，进而终端可以确定每套TCI状态对应的信道/信号。
例如，指示信息指示TCI状态1、TCI状态2和TCI状态3，另外该指示信息还指示TCI状态1对应的组标识1、TCI状态2对应的组标识2，TCI状态3对应的组标识3。
可选地，在至少一套TCI状态的数量小于信道/信号对应的组数的情况下，指示信息还指示每套TCI状态对应的组标识。
也就是说，本申请实施例中，若至少一套TCI状态的数量小于信道/信号对应的组的组数，则说明每个信道/信号组无法与指示信息指示的至少一套TCI状态一一对应，则此时采用指示信息指示每套TCI状态对应的组标识，进而可以由终端根据该指示信息确定每个信道/信号对应的一套TCI状态。
例如，指示信息指示TCI状态1、TCI状态2和TCI状态3，而终端的所有信道/信号可以分为5个组，分别对应不同的组标识。则该指示信息还指示TCI状态1对应的组标识1、TCI状态2对应的组标识3，TCI状态3对应的组标识 5。
又例如，指示信息指示TCI状态1，而终端的所有信道/信号可以分为2个组，分别对应不同的组标识。则该指示信息还指示TCI状态1对应的组标识1。
需要说明的是，本申请实施例是以指示信息指示每套TCI状态对应的组标识为例进行说明。而在另一实施例中，指示信息指示的是TCI状态与组标识的对应关系，并且该组标识为信道/信号对应的组的标识。
第二种：终端根据映射关系确定信道/信号对应的至少一套TCI状态。
在一些实施例中，终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，其中，映射关系包括每个组标识与每套TCI状态的对应关系。
在本申请实施例中，终端接收到该指示信息后，确定该指示信息指示的至少一套TCI状态，并且终端还存储有映射关系，根据该映射关系就可以确定每个信道/信号对应的至少一套TCI状态。
例如，该映射关系确定的第一套TCI状态对应组标识1，第二套TCI状态对应组标识2，也就是第一套TCI状态对应组标识1的信道/信号，第二套TCI状态对应组标识2的信道/信号。
可选地，在至少一套TCI状态的数量与终端所有的信道/信号对应的组数相同的情况下，根据映射关系，确定每个组标识指示的信道/信号对应的一套TCI状态，其中，至少一套TCI状态的数量为大于1的整数。
也就是说，本申请实施例中，若至少一套TCI状态的数量等于信道/信号对应的组的组数，则说明每个信道/信号与指示信息指示的至少一套TCI状态可以为一一对应关系，则此时根据指示信息以及映射关系，即可确定确定每个信道/信号对应的至少一套TCI状态。
例如，该至少一套TCI状态包括2套TCI状态，或者包括4套TCI状态，或者为其他数量的TCI状态，本申请实施例不作限定。
需要说明的是，本申请实施例仅是以组标识为例进行说明。而对于组标识来说，该组标识可以包括以下至少一项：
(1)CORESETPoolIndex(池索引)。
(2)CORESET(控制资源集)组标识。
(3)PUCCH组标识。
(4)PUSCH(Physical Uplink Shared Channel，物理上行共享信道)组标识。
在一些实施例中，对于一个信道/信号来说，可以为该信道/信号配置至少一个组标识，并且每个组标识对应至少一套TCI状态。例如，若信道为PDCCH时，为PDCCH对应的CORESET配置一个CORESET组标识；若信道为PUCCH时，为PUCCH配置一个PUCCH组标识，若信道为PUSCH时，为PUSCH配置一个PUSCH组标识，每个组标识对应一套TCI状态，也就是为信道/信号配置了一套TCI状态。需要说明的，本申请实施例中的PUCCH组标识、PUSCH组标识和CORESET组标识可以都为CORESET组标识，即可以为PUCCH和PUSCH配置CORESET组标识。
在另一些实施例中，若信道为PDCCH时，为PDCCH对应的CORESET配置两个CORESET组标识，每个CORESET组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。或若信道为PUCCH时，为PUCCH配置两个PUCCH组标识，每个PUCCH组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。或若信道为PUSCH时，为PUSCH配置两个PUSCH组标识，每个PUSCH组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。需要说明的是，本申请实施例中的PUCCH组标识、PUSCH组标识和CORESET组标识可以都为CORESET组标识，即可以为PUCCH和PUSCH配置CORESET组标识。
在又一些实施例中，可以为其中一种信道/信号配置一个组标识，而为另一种信道/信号配置两个组标识。比如为PDCCH对应的CORESET配置一个组标识，为PUCCH配置两个组标识。还有其他组合，这里不一一列举。
本申请实施例提供的方案中，终端采用不同的方式均可确定至少一套TCI状态中每套TCI状态对应的信道/信号，扩展了确定每个TCI状态对应的信道/信号的方式，并且每个信道/信号由网络设备的TRP传输，因此也确定了每个信道/信号对应的TRP，提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
上述实施例对如何确定每套TCI状态对应的信道/信号进行了说明，而下面对如何指示至少一套TCI状态进行说明。
第一种：通过指示信息激活至少一套TCI状态。
该指示信息包括第一指示信息，该第一指示信息激活至少一套TCI状态。
在本申请实施例中，该第一指示信息用于激活至少一套TCI状态，已激活的至少一套TCI状态即为本申请中为终端指示的至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为DCI(Downlink Control Information，下行控制信息)中TCI状态指示域的一个码点对应的TCI状态。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域包括码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该第一指示信息激活至少一套TCI状态，至少一套TCI状态作为第一指示信息指示的至少一套TCI状态。也就是说，第一指示信息激活TCI状态指示域的一个码点对应的至少一套TCI状态，所以不需要额外的DCI信令来指示TCI状态域对应的码点。
可选地，该TCI状态指示域包括第一数量的比特，该第一数量的比特指示的不同的数值对应不同的码点，并且每个码点对应至少一套TCI状态。
例如，该TCI状态指示域包括2比特，则对于该2比特来说，可以包括00、01、10和11，也就是2比特可以指示4个码点。该第一指示信息激活的为第一码点对应的TCI状态，而第一码点对应的TCI状态可以为TCI状态#1，或第一码点对应的TCI状态可以为TCI状态#2和TCI状态#3。
可选地，网络设备为终端激活至少一套TCI状态，则在终端接收到第一指示信息时，即可确定该第一指示信息激活的至少一套TCI状态。
在一些实施例中，该第一指示信息为MAC CE(Media Access Control Control Element，媒体访问控制控制单元)。也就是说，网络设备向终端发送MAC CE，通过该MAC CE来激活指示至少一套TCI状态。
在本申请实施例中，该MAC CE用于激活至少一套TCI状态，已激活的至少一套TCI状态即为本申请中为终端指示的至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为DCI中TCI状态指示域的一个码点对应的TCI状态。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域可以用于指示不同的码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该MAC CE激活至少一套TCI状态，至少一套TCI状态作为MAC CE指示的至少一套TCI状态。也就是说，MAC CE激活TCI状态指示域的一个码点对应的至少一套TCI状态，所以不需要额外的DCI信令来指示TCI状态域对应的码点。
可选地，该TCI状态指示域包括第一数量的比特，该第一数量的比特指示的不同的数值对应不同的码点，并且每个码点对应至少一套TCI状态。
可选地，网络设备为终端激活至少一套TCI状态，则在终端接收到MAC CE时，即可确定该MAC CE激活至少一套TCI状态。
本申请实施例提供的方案中，通过指示信息来直接激活至少一套TCI状态，已激活的至少一套TCI状态即为指示信息为终端指示的至少一套TCI状态，无需再通过DCI信令指示，节省信令开销，并且还提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
第二种：通过指示信息激活至少两个码点分别对应的至少一套TCI状态后再指示一个码点。
指示信息包括第二指示信息和第三指示信息，该第二指示信息用于激活DCI中TCI状态指示域的至少两个码点对应的TCI状态，每个码点对应至少一套TCI状态，第三指示信息指示一个码点。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域包括码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该第二指示信息激活至少两个码点，并且每个码点对应至少一套TCI状态，并且在激活了至少两个码点对应的TCI状态的情况下，再通过第三指示信息来指示一个码点，则终端可以将第三指示信息指示的一个码点对应的至少一套TCI状态确定为指示信息指示的至少一套TCI状态。
可选地，该TCI状态指示域包括第二数量的比特，该第二数量的比特指示的不同的数值对应不同的码点，并且码点对应至少一套TCI状态。
例如，该TCI状态指示域包括3比特，则对于该3比特来说，可以包括8个数值，也就是3比特可以指示8个码点。该第二指示信息激活第二码点对应的TCI状态和第三码点对应的TCI状态，该第二码点对应TCI状态#1和TCI状态#2，第三码点对应TCI状态#3，若第三指示信息指示的码点为第二码点，则说明指示的TCI状态为TCI状态#1和TCI状态#2。
在一些实施例中，该第二指示信息为MAC CE，第三指示信息为DCI。也就是说，网络设备向终端发送MAC CE，通过该MAC CE来激活至少两个码点对应的TCI状态，再通过DCI来指示一个码点。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域可以指示不同 的码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该MAC CE激活至少两个码点分别对应的TCI状态，再通过DCI来指示一个码点，则终端可以将DCI指示的一个码点对应的至少一套TCI状态确定为指示信息指示的至少一套TCI状态。
可选地，网络设备为终端配置每个码点对应的至少一套TCI状态，则在终端接收到MAC CE激活的至少两个码点时，即可确定该MAC CE激活的每个码点对应的至少一套TCI状态，网络设备再通过DCI来指示已激活的至少两个码点中的一个码点，也就是指示了该码点对应的至少一套TCI状态。
本申请实施例提供的方案中，通过第二指示信息来激活至少两个码点分别对应的TCI状态，再通过第三指示信息来指示已激活的至少两个码点中的一个码点，提高了指示的至少一套TCI状态的多样性，并且还提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
在上述实施例的基础上，本申请实施例中的信道/信号包括多种类型，下面，对本申请涉及的信道/信号进行说明。
其中，信道/信号包括以下至少之一：
(1)基于CORESET(控制空间集)进行传输的PDCCH(Physical Downlink Control Channel，物理下行控制信道)。
(2)周期性传输的PUCCH。
(3)semi-persistent(半静态调度)传输的PUCCH。
(4)configured grant(配置授权)的type 1(类型1)的PUSCH。
其中，本申请实施例中的PDCCH对应的CORESET关联的SS set(Search Space set，搜索空间集)包括多种情况。
在一些实施例中，PDCCH对应的CORESET关联的SS set包括USS sets(UE-specific Search Space set，终端特定搜索空间集)和/或Type3-PDCCH CSS sets(Common Search Space set，公共搜索空间集)。
例如，PDCCH对应的CORESET关联的SS set包括USS sets。或者，PDCCH对应的CORESET关联的SS set包括Type3-PDCCH CSS sets。又或者，PDCCH对应的CORESET关联的SS set包括USS sets和Type3-PDCCH CSS sets。
在另一些实施例中，PDCCH对应的CORESET关联的SS set至少包括除 Type3-PDCCH CSS sets以外的其他CSS set，且CORESET使用unified TCI状态(统一TCI状态)。
其中，该unified TCI状态即为上述实施例中网络设备通过指示信息指示的至少一套TCI状态。
可选地，网络设备为终端配置unified TCI状态，并配置该CORESET可以使用unified TCI状态。
在另一些实施例中，PDCCH对应的CORESET为CORESET#0，且CORESET使用unified TCI状态。
可选地，网络设备为终端配置unified TCI状态，并配置该CORESET可以使用unified TCI状态。
需要说明的是，若本申请实施例中的信道/信号为基于CORESET传输的PDCCH，则终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态或联合TCI状态。
也就是说，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态。或者，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的联合TCI状态，该联合TCI状态对应有下行传输的TCI状态。
在一些实施例中，终端将下行TCI状态或联合TCI状态确定为PDCCH调度的PDSCH(Physical Downlink Shared Channel，物理下行共享信道)或CSI-RS(Channel State Information Reference Signal，信道状态信息参考信号)的TCI状态。
在本申请实施例中，终端确定下行TCI状态或联合TCI状态后，由于PDCCH可以调度PDSCH或CSI-RS，因此终端将确定的下行TCI状态或联合TCI状态作为PDSCH或CSI-RS的TCI状态。
若本申请实施例中的信道/信号为基于CORESET传输的PDCCH，则终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态或联合TCI状态。
也就是说，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态。或者，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的联合TCI状态，该联合TCI状态对应有上行传输的TCI状态。
在一些实施例中，将上行TCI状态或联合TCI状态确定为每个PDCCH调度的PUCCH或PUSCH或SRS的TCI状态。
在本申请实施例中，终端确定上行TCI状态或联合TCI状态后，由于PDCCH可以调度PUCCH或PUSCH或SRS(Sounding Reference Signal，探测参考信号)，因此终端将确定的下行TCI状态或联合TCI状态作为PUCCH或PUSCH或SRS的TCI状态。
需要说明的是，本申请实施例中网络设备还会通过配置信息为终端配置组标识。
在一些实施例中，网络设备向终端发送配置信息，终端接收配置信息，配置信息用于为信道/信号配置至少一个组标识。每个组标识对应不同的一套TCI状态。
可选地，若信道/信号为基于CORESET进行传输的PDCCH，则通过该配置信息为终端的某个CORESET配置一个或多个组标识，每个组标识对应的组对应不同的一套TCI状态。或者，若信道/信号为PUCCH，或者，信道/信号为PUSCH，则通过该配置信息为终端的某个PUCCH资源或PUSCH配置一个或多个组标识，每个组标识对应的组对应不同的一套TCI状态。
在本申请实施例提供的方案中，网络设备为每个信道/信号配置至少一个组标识，则可以根据该组标识确定信道/信号对应的组的标识，再根据每个组标识对应的至少一套TCI状态，进而确定该信道/信号对应的至少一套TCI状态，保证了确定的每个信道/信号对应的至少一套TCI状态的准确性，保证传输的信号质量，进而保证传输的可靠性。
需要说明的是，上述实施例可以拆分为新实施例，或与其他实施例互相组合为新实施例，本申请对实施例之间的组合不做限定。
图4示出了本申请一个示例性实施例提供的TCI状态确定方法的流程图，示例性的可以应用于如图1所示的终端中，该方法包括以下内容中的至少部分内容：
步骤401：终端接收网络设备发送的指示信息，指示信息指示至少一套TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，联合TCI状态同时应用于上行传输和下行传输。
本申请实施例中的指示信息指示的至少一套TCI状态为用于至少一种信道/信号的unified TCI state，也称为indicated TCI state。可以理解为一套TCI state可以同时用于PDCCH，PDSCH，PUCCH，PUSCH，SRS和CSI-RS的至少两 种信道/信号的传输。
本申请实施例中的上行TCI状态为separate UL TCI state(单独上行TCI状态)，下行TCI状态为separateDL TCI state(单独下行TCI状态)，联合TCI状态为joint TCI state。
在本申请实施例中，网络设备通过指示信息为终端配置至少一套TCI状态，并且至少一套TCI状态中的每套TCI状态包括的TCI状态可能不同。
其中，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态。本申请实施例中的每套TCI状态也可以理解为包括上行TCI状态或下行TCI状态或上行TCI状态和下行TCI状态或和联合TCI状态。
也就是说，每套TCI状态包括以下任一种情况：
(1)上行TCI状态。
(2)下行TCI状态。
(3)上行TCI状态和下行TCI状态。
(4)联合TCI状态。其中，该联合TCI状态同时应用于上行传输和下行传输，也就是说该联合TCI状态既可以指示用于上行传输的TCI状态，也可以指示用于下行传输的TCI状态。
例如，网络设备通过指示信息指示了3套TCI状态，分别为TCI状态1、TCI状态2和TCI状态3，该TCI状态1包括上行TCI状态和下行TCI状态，TCI状态2包括联合TCI状态，TCI状态3包括上行TCI状态。
在一些实施例中，网络设备配置了两个TRP，分别为第一TRP和第二TRP，若第一TRP被配置为联合TCI状态，则该第一TRP对应的一套TCI状态包括联合TCI状态，而若该第一TRP被配置为单独的上行TCI和/或下行TCI，则第一TRP对应的一套TCI状态包括单独上行TCI和单独下行TCI中的至少一项。类似的，若第二TRP被配置为联合TCI状态，则该第二TRP对应的一套TCI状态包括联合TCI状态，而若该第二TRP被配置为单独的上行TCI和/或下行TCI，则第二TRP对应的一套TCI状态包括单独上行TCI和单独下行TCI中的至少一项。
步骤402：终端根据指示信息，确定每个信道/信号对应的至少一套TCI状态。
在本申请实施例中，终端接收到该指示信息后，即可确定该指示信息指示 的至少一套TCI状态，并且终端与网络设备之间还可以传输有信道/信号，则对于该终端来说，该终端可以根据该指示信息确定每个信道/信号对应的至少一套TCI状态。
在一些实施例中，网络设备配置有多个TRP，并且网络设备通过配置的多个TRP与终端之间传输信道/信号，则对于每个信道/信号来说，均需要对应至少一套TCI状态，也就是说终端需要根据指示信息确定每个信道/信号对应的至少一套TCI状态，也即是确定每个信道/信号对应的至少一个TRP。
也就是说，本申请实施例通过指示信息可以为多个TRP中的每个TRP指示对应的一套TCI状态，实现了在多TRP场景下通过单一的指示信息来指示统一TCI状态的效果，保证了基于统一TCI状态的多TRP传输的信号的信号质量。
本申请实施例提供方案中，终端可以根据指示信息确定每个信道/信号对应的至少一套TCI状态，并且每个信道/信号由网络设备的TRP传输，因此也确定了信道/信号对应的至少一个TRP，提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
在图4所示的实施例的基础上，终端根据指示信息确定每个信道/信号对应的TCI状态包括多种方式，下面对如何确定每个信道/信号对应的TCI状态进行说明。
第一种：终端根据指示信息指示的TCI状态对应的组标识确定信道/信号对应的至少一套TCI状态。
在一些实施例中，指示信息指示每套TCI状态对应的组标识，该组标识为信道/信号对应的组的标识。
在本申请实施例中，终端接收到该指示信息后，由于该指示信息指示至少一套TCI状态，并且该指示信息还指示每套TCI状态对应的组标识。而终端又知道每个信道/信号对应的组标识，因此根据该组标识即可确定该组标识指示的信道/信号，进而终端可以确定每套TCI状态对应的信道/信号。
例如，指示信息指示TCI状态1、TCI状态2和TCI状态3，另外该指示信息还指示TCI状态1对应的组标识1、TCI状态2对应的组标识2，TCI状态3对应的组标识3。
可选地，在至少一套TCI状态的数量小于信道/信号对应的组数的情况下， 指示信息还指示每套TCI状态对应的组标识。
也就是说，本申请实施例中，若至少一套TCI状态的数量小于信道/信号对应的组的组数，则说明每个信道/信号组无法与指示信息指示的至少一套TCI状态一一对应，则此时采用指示信息指示每套TCI状态对应的组标识，进而可以由终端根据该指示信息确定每个信道/信号对应的一套TCI状态。
例如，指示信息指示TCI状态1、TCI状态2和TCI状态3，而终端的所有信道/信号可以分为5个组，分别对应不同的组标识。则该指示信息还指示TCI状态1对应的组标识1、TCI状态2对应的组标识3，TCI状态3对应的组标识5。
又例如，指示信息指示TCI状态1，而终端的所有信道/信号可以分为2个组，分别对应不同的组标识。则该指示信息还指示TCI状态1对应的组标识1。
需要说明的是，本申请实施例是以指示信息指示每套TCI状态对应的组标识为例进行说明。而在另一实施例中，指示信息指示的是TCI状态与组标识的对应关系，并且该组标识为信道/信号对应的组的标识。
第二种：终端根据映射关系确定信道/信号对应的至少一套TCI状态。
在一些实施例中，终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，其中，映射关系包括每个组标识与每套TCI状态的对应关系。
在本申请实施例中，终端接收到该指示信息后，确定该指示信息指示的至少一套TCI状态，并且终端还存储有映射关系，根据该映射关系就可以确定每个信道/信号对应的至少一套TCI状态。
例如，该映射关系确定的第一套TCI状态对应组标识1，第二套TCI状态对应组标识2，也就是第一套TCI状态对应组标识1的信道/信号，第二套TCI状态对应组标识2的信道/信号。
可选地，在至少一套TCI状态的数量与终端所有的信道/信号对应的组数相同的情况下，根据映射关系，确定每个组标识指示的信道/信号对应的一套TCI状态，其中，至少一套TCI状态的数量为大于1的整数。
也就是说，本申请实施例中，若至少一套TCI状态的数量等于信道/信号对应的组的组数，则说明每个信道/信号与指示信息指示的至少一套TCI状态可以为一一对应关系，则此时根据指示信息以及映射关系，即可确定确定每个信道/信号对应的至少一套TCI状态。
例如，该至少一套TCI状态包括2套TCI状态，或者包括4套TCI状态，或者为其他数量的TCI状态，本申请实施例不作限定。
需要说明的是，本申请实施例仅是以组标识为例进行说明。而对于组标识来说，该组标识可以包括以下至少一项：
(1)CORESETPoolIndex(池索引)。
(2)CORESET组标识。
(3)PUCCH(Physical Uplink Control Channel，物理上行控制信道)组标识。
(4)PUSCH(Physical Uplink Shared Channel，物理上行共享信道)组标识。
在一些实施例中，对于一个信道/信号来说，可以为该信道/信号配置至少一个组标识，并且每个组标识对应至少一套TCI状态。例如，若信道为PDCCH时，为PDCCH对应的CORESET配置一个CORESET组标识；若信道为PUCCH时，为PUCCH配置一个PUCCH组标识，若信道为PUSCH时，为PUSCH配置一个PUSCH组标识，每个组标识对应一套TCI状态，也就是为信道/信号配置了一套TCI状态。需要说明的，本申请实施例中的PUCCH组标识、PUSCH组标识和CORESET组标识可以都为CORESET组标识，即可以为PUCCH和PUSCH配置CORESET组标识。
在另一些实施例中，若信道为PDCCH时，为PDCCH对应的CORESET配置两个CORESET组标识，每个CORESET组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。或若信道为PUCCH时，为PUCCH配置两个PUCCH组标识，每个PUCCH组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。或若信道为PUSCH时，为PUSCH配置两个PUSCH组标识，每个PUSCH组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。需要说明的是，本申请实施例中的PUCCH组标识、PUSCH组标识和CORESET组标识可以都为CORESET组标识，即可以为PUCCH和PUSCH配置CORESET组标识。
在又一些实施例中，可以为其中一种信道/信号配置一个组标识，而为另一种信道/信号配置两个组标识。比如为PDCCH对应的CORESET配置一个组标识，为PUCCH配置两个组标识。还有其他组合，这里不一一列举。
本申请实施例提供的方案中，终端采用不同的方式均可确定至少一套TCI状态中每套TCI状态对应的信道/信号，扩展了确定每个TCI状态对应的信道/ 信号的方式，并且每个信道/信号由网络设备的TRP传输，因此也确定了每个信道/信号对应的TRP，提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
另外，下面对如何指示至少一套TCI状态进行说明。
第一种：通过指示信息激活至少一套TCI状态。
该指示信息包括第一指示信息，该第一指示信息激活至少一套TCI状态。
在本申请实施例中，该第一指示信息用于激活至少一套TCI状态，已激活的至少一套TCI状态即为本申请中为终端指示的至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为DCI(Downlink Control Information，下行控制信息)中TCI状态指示域的一个码点对应的TCI状态。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域包括码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该第一指示信息激活至少一套TCI状态，至少一套TCI状态作为第一指示信息指示的至少一套TCI状态。也就是说，第一指示信息激活TCI状态指示域的一个码点对应的至少一套TCI状态，所以不需要额外的DCI信令来指示TCI状态域对应的码点。
可选地，该TCI状态指示域包括第一数量的比特，该第一数量的比特指示的不同的数值对应不同的码点，并且每个码点对应至少一套TCI状态。
例如，该TCI状态指示域包括2比特，则对于该2比特来说，可以包括00、01、10和11，也就是2比特可以指示4个码点。该第一指示信息激活的码点为第一码点对应的TCI状态，而第一码点对应的TCI状态可以为TCI状态#1，或第一码点对应的TCI状态可以为TCI状态#2和TCI状态#3。
可选地，网络设备为终端激活至少一套TCI状态，则在终端接收到第一指示信息时，即可确定该第一指示信息激活的至少一套TCI状态。
在一些实施例中，该第一指示信息为MAC CE(Media Access Control Control Element，媒体访问控制控制单元)。也就是说，网络设备向终端发送MAC CE，通过该MAC CE来激活指示至少一套TCI状态。
在本申请实施例中，该MAC CE用于激活至少一套TCI状态，已激活的至少一套TCI状态即为本申请中为终端指示的至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为DCI中TCI状态指示域的一 个码点对应的TCI状态。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域可以用于指示不同的码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该MAC CE激活至少一套TCI状态，至少一套TCI状态作为MAC CE指示的至少一套TCI状态。也就是说，MAC CE激活TCI状态指示域的一个码点对应的至少一套TCI状态被激活，所以不需要额外的DCI信令来指示TCI状态域对应的码点。
可选地，该TCI状态指示域包括第一数量的比特，该第一数量的比特指示的不同的数值对应不同的码点，并且每个码点对应至少一套TCI状态。
可选地，网络设备为终端激活至少一套TCI状态，则在终端接收到MAC CE时，即可确定该MAC CE激活的至少一套TCI状态。
本申请实施例提供的方案中，通过指示信息来直接激活至少一套TCI状态，已激活的至少一套TCI状态即为指示信息为终端指示的至少一套TCI状态，无需再通过DCI信令指示，节省信令开销，并且还提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
第二种：通过指示信息激活至少两个码点分别对应的至少一套TCI状态后再指示一个码点。
指示信息包括第二指示信息和第三指示信息，该第二指示信息用于激活下DCI中TCI状态指示域的至少两个码点对应的TCI状态，每个码点对应至少一套TCI状态，第三指示信息指示一个码点。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域包括码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该第二指示信息激活至少两个码点，并且每个码点对应至少一套TCI状态，并且在激活了至少两个码点对应的TCI状态的情况下，再通过第三指示信息来指示一个码点，则终端可以将第三指示信息指示的一个码点对应的至少一套TCI状态确定为指示信息指示的至少一套TCI状态。
可选地，该TCI状态指示域包括第二数量的比特，该第二数量的比特指示的不同的数值对应不同的码点，并且码点对应至少一套TCI状态。
例如，该TCI状态指示域包括3比特，则对于该3比特来说，可以包括8个数值，也就是3比特可以指示8个码点。该第二指示信息激活第二码点对应 的TCI状态和第三码点对应的TCI状态，该第二码点对应TCI状态#1和TCI状态#2，第三码点对应TCI状态#3，若第三指示信息指示的码点为第二码点，则说明指示的TCI状态为TCI状态#1和TCI状态#2。
在一些实施例中，该第二指示信息为MAC CE，第三指示信息为DCI。也就是说，网络设备向终端发送MAC CE，通过该MAC CE来激活至少两个码点对应的TCI状态，再通过DCI来指示一个码点。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域可以指示不同的码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该MAC CE激活至少两个码点分别对应的TCI状态，再通过DCI来指示一个码点，则终端可以将DCI指示的一个码点对应的至少一套TCI状态确定为指示信息指示的至少一套TCI状态。
可选地，网络设备为终端配置每个码点对应的至少一套TCI状态，则在终端接收到MAC CE激活的至少两个码点时，即可确定该MAC CE激活的每个码点对应的至少一套TCI状态，网络设备再通过DCI来指示已激活的至少两个码点中的一个码点，也就是指示了该码点对应的至少一套TCI状态。
本申请实施例提供的方案中，通过第二指示信息来激活至少两个码点分别对应的TCI状态，再通过第三指示信息来指示已激活的至少两个码点中的一个码点，提高了指示的至少一套TCI状态的多样性，并且还提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
在一些实施例中，信道/信号包括以下至少之一：
(1)基于CORESET(控制空间集)进行传输的PDCCH。
(2)周期性传输的PUCCH。
(3)semi-persistent(半静态调度)传输的PUCCH。
(4)configured grant(配置授权)的type 1(类型1)的PUSCH。
其中，本申请实施例中的PDCCH对应的CORESET关联的SS set(Search Space set，搜索空间集)包括多种情况。
在一些实施例中，PDCCH对应的CORESET关联的SS set包括USS sets(UE-specific Search Space set，终端特定搜索空间集)和/或Type3-PDCCH CSS sets(Common Search Space set，公共搜索空间集)。
在另一些实施例中，PDCCH对应的CORESET关联的SS set至少包括除 Type3-PDCCH CSS sets以外的其他CSS set，且CORESET使用unified TCI状态(统一TCI状态)。
其中，该unified TCI状态即为上述实施例中网络设备通过指示信息指示的至少一套TCI状态。
可选地，网络设备为终端配置unified TCI状态，并配置该CORESET可以使用unified TCI状态。
在另一些实施例中，PDCCH对应的CORESET为CORESET#0，且CORESET使用unified TCI状态。
可选地，网络设备为终端配置unified TCI状态，并配置该CORESET可以使用unified TCI状态。
需要说明的是，若本申请实施例中的信道/信号为基于CORESET传输的PDCCH，则终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态或联合TCI状态。
也就是说，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态。或者，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的联合TCI状态，该联合TCI状态对应有下行传输的TCI状态。
在一些实施例中，终端将下行TCI状态或联合TCI状态确定为PDCCH调度的PDSCH或CSI-RS的TCI状态。
在本申请实施例中，终端确定下行TCI状态或联合TCI状态后，由于PDCCH可以调度PDSCH或CSI-RS，因此终端将确定的下行TCI状态或联合TCI状态作为PDSCH或CSI-RS的TCI状态。
若本申请实施例中的信道/信号为基于CORESET传输的PDCCH，则终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态或联合TCI状态。
也就是说，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态。或者，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的联合TCI状态，该联合TCI状态对应有上行传输的TCI状态。
在一些实施例中，将上行TCI状态或联合TCI状态确定为每个PDCCH调度的PUCCH或PUSCH或SRS的TCI状态。
在本申请实施例中，终端确定上行TCI状态或联合TCI状态后，由于PDCCH可以调度PUCCH或PUSCH或SRS，因此终端将确定的下行TCI状态或联合 TCI状态作为PUCCH或PUSCH或SRS的TCI状态。
需要说明的是，本申请实施例中网络设备还会通过配置信息为终端配置组标识。
在一些实施例中，网络设备向终端发送配置信息，终端接收配置信息，配置信息用于为信道/信号配置至少一个组标识，每个组标识对应不同的至少一套TCI状态。
可选地，若信道/信号为基于CORESET进行传输的PDCCH，则通过该配置信息为终端的某个CORESET配置一个或多个组标识，每个组标识对应的组对应不同的一套TCI状态。或者，若信道/信号为PUCCH，或者，为PUSCH，则通过该配置信息为终端的某个PUCCH资源或PUSCH配置一个或多个组标识，每个组标识对应的组对应不同的一套TCI状态。
在本申请实施例提供的方案中，网络设备为每个信道/信号配置至少一个组标识，则可以根据该组标识确定信道/信号对应的组的标识，再根据每个组标识对应的至少一套TCI状态，进而确定该信道/信号对应的至少一套TCI状态，保证了确定的每个信道/信号对应的至少一套TCI状态的准确性，保证传输的信号质量，进而保证传输的可靠性。
图5示出了本申请一个示例性实施例提供的TCI状态确定方法的流程图，示例性的可以应用于如图1所示的网络设备中，该方法包括以下内容中的至少部分内容：
步骤501：网络设备向终端发送指示信息，指示信息指示至少一套TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，联合TCI状态同时应用于上行传输和下行传输；指示信息用于供终端确定每个信道/信号对应的一套TCI状态。
本申请实施例中的指示信息指示的至少一套TCI状态为用于至少一种信道/信号的unified TCI state，也称为indicated TCI state。可以理解为一套TCI state可以同时用于PDCCH，PDSCH，PUCCH，PUSCH，SRS和CSI-RS的至少两种信道/信号的传输。
本申请实施例中的上行TCI状态为separate UL TCI state(单独上行TCI状态)，下行TCI状态为separateDL TCI state(单独下行TCI状态)，联合TCI状态为joint TCI state。
在本申请实施例中，网络设备通过指示信息为终端配置至少一套TCI状态，并且至少一套TCI状态中的每套TCI状态包括的TCI状态可能不同。
其中，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态。本申请实施例中的每套TCI状态也可以理解为包括上行TCI状态或下行TCI状态或上行TCI状态和下行TCI状态或和联合TCI状态。
也就是说，每套TCI状态包括以下任一种情况：
(1)上行TCI状态。
(2)下行TCI状态。
(3)上行TCI状态和下行TCI状态。
(4)联合TCI状态。其中，该联合TCI状态同时应用于上行传输和下行传输，也就是说该联合TCI状态既可以指示用于上行传输的TCI状态，也可以指示用于下行传输的TCI状态。
例如，网络设备通过指示信息指示了3套TCI状态，分别为TCI状态1、TCI状态2和TCI状态3，该TCI状态1包括上行TCI状态和下行TCI状态，TCI状态2包括联合TCI状态，TCI状态3包括上行TCI状态。
在一些实施例中，网络设备配置了两个TRP，分别为第一TRP和第二TRP，若第一TRP被配置为联合TCI状态，则该第一TRP对应的一套TCI状态包括联合TCI状态，而若该第一TRP被配置为单独的上行TCI和/或下行TCI，则第一TRP对应的一套TCI状态包括单独上行TCI和单独下行TCI中的至少一项。类似的，若第二TRP被配置为联合TCI状态，则该第二TRP对应的一套TCI状态包括联合TCI状态，而若该第二TRP被配置为单独的上行TCI和/或下行TCI，则第二TRP对应的一套TCI状态包括单独上行TCI和单独下行TCI中的至少一项。
在一些实施例中，网络设备配置有多个TRP，并且网络设备通过配置的多个TRP与终端之间传输信道/信号，则对于每个信道/信号来说，均需要对应至少一套TCI状态，也就是说终端需要根据指示信息确定每个信道/信号对应的至少一套TCI状态，也即是确定每个信道/信号对应的至少一个TRP。
也就是说，本申请实施例通过指示信息可以为多个TRP中的每个TRP指示对应的一套TCI状态，实现了在多TRP场景下通过单一的指示信息来指示统一TCI状态的效果，保证了基于统一TCI状态的多TRP传输的信号的信号质量。
本申请实施例提供方案中，终端可以根据指示信息确定每个信道/信号，并且每个信道/信号对应的至少一套TCI状态，并且每个信道/信号由网络设备的TRP传输，因此也确定了信道/信号对应的至少一个TRP，提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
在图5所示的实施例的基础上，指示信息用于供终端确定每个信道/信号对应的TCI状态，下面对如何确定每个信道/信号对应的TCI状态进行说明。
第一种：指示信息指示TCI状态对应的组标识。
在一些实施例中，指示信息指示每套TCI状态对应的组标识，该组标识为信道/信号对应的组的标识。
在本申请实施例中，终端接收到该指示信息后，由于该指示信息指示至少一套TCI状态，并且该指示信息还指示每套TCI状态对应的组标识。而终端又知道每个信道/信号对应的组标识，因此根据该组标识即可确定该组标识指示的信道/信号，进而终端可以确定每套TCI状态对应的信道/信号。
例如，指示信息指示TCI状态1、TCI状态2和TCI状态3，另外该指示信息还指示TCI状态1对应的组标识1、TCI状态2对应的组标识2，TCI状态3对应的组标识3。
可选地，在至少一套TCI状态的数量小于信道/信号对应的组数的情况下，指示信息还指示每套TCI状态对应的组标识。
也就是说，本申请实施例中，若至少一套TCI状态的数量小于信道/信号对应的组的组数，则说明每个信道/信号组无法与指示信息指示的至少一套TCI状态一一对应，则此时采用指示信息指示每套TCI状态对应的组标识，进而可以由终端根据该指示信息确定每个信道/信号对应的一套TCI状态。
例如，指示信息指示TCI状态1、TCI状态2和TCI状态3，而终端的所有信道/信号可以分为5个组，分别对应不同的组标识。则该指示信息还指示TCI状态1对应的组标识1、TCI状态2对应的组标识3，TCI状态3对应的组标识5。
又例如，指示信息指示TCI状态1，而终端的所有信道/信号可以分为2个组，分别对应不同的组标识。则该指示信息还指示TCI状态1对应的组标识1。
需要说明的是，本申请实施例是以指示信息指示每套TCI状态对应的组标 识为例进行说明。而在另一实施例中，指示信息指示的是TCI状态与组标识的对应关系，并且该组标识为信道/信号对应的组的标识。
第二种：根据映射关系确定信道/信号对应的至少一套TCI状态。
在一些实施例中，指示信息用于供终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态；其中，映射关系包括每个组标识与每套TCI状态的对应关系。
在本申请实施例中，终端接收到该指示信息后，确定该指示信息指示的至少一套TCI状态，并且终端还存储有映射关系，根据该映射关系就可以确定每个信道/信号对应的至少一套TCI状态。
例如，该映射关系确定的第一套TCI状态对应组标识1，第二套TCI状态对应组标识2，也就是第一套TCI状态对应组标识1的信道/信号，第二套TCI状态对应组标识2的信道/信号。
可选地，在至少一套TCI状态的数量与终端所有的信道/信号对应的组数相同的情况下，指示信息用于供终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，其中，至少一套TCI状态的数量为大于1的整数。
也就是说，本申请实施例中，若至少一套TCI状态的数量等于信道/信号对应的组的组数，则说明每个信道/信号与指示信息指示的至少一套TCI状态可以为一一对应关系，则此时根据指示信息以及映射关系，即可确定确定每个信道/信号对应的一套TCI状态。
例如，该至少一套TCI状态包括2套TCI状态，或者包括4套TCI状态，或者为其他数量的TCI状态，本申请实施例不作限定。
需要说明的是，本申请实施例仅是以组标识为例进行说明。而对于组标识来说，该组标识可以包括以下至少一项：
(1)CORESETPoolIndex(池索引)。
(2)CORESET组标识。
(3)PUCCH组标识。
(4)PUSCH组标识。
在一些实施例中，对于一个信道/信号来说，可以为该信道/信号配置至少一个组标识，并且每个组标识对应至少一套TCI状态。例如，若信道为PDCCH时，为PDCCH对应的CORESET配置一个CORESET组标识；若信道为PUCCH 时，为PUCCH配置一个PUCCH组标识，若信道为PUSCH时，为PUSCH配置一个PUSCH组标识，每个组标识对应一套TCI状态，也就是为信道/信号配置了一套TCI状态。需要说明的，本申请实施例中的PUCCH组标识、PUSCH组标识和CORESET组标识可以都为CORESET组标识，即可以为PUCCH和PUSCH配置CORESET组标识。
在另一些实施例中，若信道为PDCCH时，为PDCCH对应的CORESET配置两个CORESET组标识，每个CORESET组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。或若信道为PUCCH时，为PUCCH配置两个PUCCH组标识，每个PUCCH组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。或若信道为PUSCH时，为PUSCH配置两个PUSCH组标识，每个PUSCH组标识对应一套TCI状态，也就是为信道/信号配置了两套TCI状态。需要说明的是，本申请实施例中的PUCCH组标识、PUSCH组标识和CORESET组标识可以都为CORESET组标识，即可以为PUCCH和PUSCH配置CORESET组标识。
在又一些实施例中，可以为其中一种信道/信号配置一个组标识，而为另一种信道/信号配置两个组标识。比如为PDCCH对应的CORESET配置一个组标识，为PUCCH配置两个组标识。还有其他组合，这里不一一列举。
本申请实施例提供的方案中，终端采用不同的方式均可确定至少一套TCI状态中每套TCI状态对应的信道/信号，扩展了确定每个TCI状态对应的信道/信号的方式，并且每个信道/信号由网络设备的TRP传输，因此也确定了每个信道/信号对应的TRP，提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
另外，下面对如何指示至少一套TCI状态进行说明。
第一种：通过指示信息激活至少一套TCI状态。
该指示信息包括第一指示信息，该第一指示信息激活至少一套TCI状态。
在本申请实施例中，该第一指示信息用于激活至少一套TCI状态，已激活的至少一套TCI状态即为本申请中为终端指示的至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为DCI(Downlink Control Information，下行控制信息)中TCI状态指示域的一个码点对应的TCI状态。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域包括码点，通 过该码点指示对应的TCI状态。
在本申请实施例中，该第一指示信息激活至少一套TCI状态，至少一套TCI状态作为第一指示信息指示的至少一套TCI状态。也就是说，第一指示信息激活TCI状态指示域的一个码点对应的至少一套TCI状态，所以不需要额外的DCI信令来指示TCI状态域对应的码点。
可选地，该TCI状态指示域包括第一数量的比特，该第一数量的比特指示的不同的数值对应不同的码点，并且每个码点对应至少一套TCI状态。
例如，该TCI状态指示域包括2比特，则对于该2比特来说，可以包括00、01、10和11，也就是2比特可以指示4个码点。该第一指示信息激活的码点为第一码点对应的TCI状态，而第一码点对应的TCI状态可以为TCI状态#1，或第一码点对应的TCI状态可以为TCI状态#2和TCI状态#3。
可选地，网络设备为终端激活至少一套TCI状态，则在终端接收到第一指示信息时，即可确定该第一指示信息激活的至少一套TCI状态。
在一些实施例中，该第一指示信息为MAC CE(Media Access Control Control Element，媒体访问控制控制单元)。也就是说，网络设备向终端发送MAC CE，通过该MAC CE来激活指示至少一套TCI状态。
在本申请实施例中，该MAC CE用于激活至少一套TCI状态，已激活的至少一套TCI状态即为本申请中为终端指示的至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为DCI中TCI状态指示域的一个码点对应的TCI状态。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域可以用于指示不同的码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该MAC CE激活至少一套TCI状态，也可以认为将激活的至少一套TCI状态作为MAC CE指示的至少一套TCI状态。也就是说，MAC CE激活TCI状态指示域的一个码点对应的至少一套TCI状态被激活，所以不需要额外的DCI信令来指示TCI状态域对应的码点。
可选地，该TCI状态指示域包括第一数量的比特，该第一数量的比特指示的不同的数值对应不同的码点，并且每个码点对应至少一套TCI状态。
可选地，网络设备为终端激活至少一套TCI状态，则在终端接收到MAC CE时，即可确定该MAC CE激活的至少一套TCI状态。
本申请实施例提供的方案中，通过指示信息来直接激活至少一套TCI状态， 已激活的至少一套TCI状态即为指示信息为终端指示的至少一套TCI状态，无需再通过DCI信令指示，节省信令开销，并且还提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
第二种：通过指示信息激活至少两个码点分别对应的至少一套TCI状态后再指示一个码点。
指示信息包括第二指示信息和第三指示信息，该第二指示信息用于激活下DCI中TCI状态指示域的至少两个码点对应的TCI状态，每个码点对应至少一套TCI状态，第三指示信息指示一个码点。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域包括码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该第二指示信息激活至少两个码点，并且每个码点对应至少一套TCI状态，并且在激活了至少两个码点对应的TCI状态的情况下，再通过第三指示信息来指示一个码点，则终端可以将第三指示信息指示的一个码点对应的至少一套TCI状态确定为指示信息指示的至少一套TCI状态。
可选地，该TCI状态指示域包括第二数量的比特，该第二数量的比特指示的不同的数值对应不同的码点，并且码点对应至少一套TCI状态。
例如，该TCI状态指示域包括3比特，则对于该3比特来说，可以包括8个数值，也就是3比特可以指示8个码点。该第二指示信息激活第二码点对应的TCI状态和第三码点对应的TCI状态，该第二码点对应TCI状态#1和TCI状态#2，第三码点对应TCI状态#3，若第三指示信息指示的码点为第二码点，则说明指示的TCI状态为TCI状态#1和TCI状态#2。
在一些实施例中，该第二指示信息为MAC CE，第三指示信息为DCI。也就是说，网络设备向终端发送MAC CE，通过该MAC CE来激活至少两个码点对应的TCI状态，再通过DCI来指示一个码点。
其中，DCI中包括TCI状态指示域，并且该TCI状态指示域可以指示不同的码点，通过该码点指示对应的TCI状态。
在本申请实施例中，该MAC CE激活至少两个码点分别对应的TCI状态，再通过DCI来指示一个码点，则终端可以将DCI指示的一个码点对应的至少一套TCI状态确定为指示信息指示的至少一套TCI状态。
可选地，网络设备为终端配置每个码点对应的至少一套TCI状态，则在终 端接收到MAC CE激活的至少两个码点时，即可确定该MAC CE激活的每个码点对应的至少一套TCI状态，网络设备再通过DCI来指示已激活的至少两个码点中的一个码点，也就是指示了该码点对应的至少一套TCI状态。
本申请实施例提供的方案中，通过第二指示信息来激活至少两个码点分别对应的TCI状态，再通过第三指示信息来指示已激活的至少两个码点中的一个码点，提高了指示的至少一套TCI状态的多样性，并且还提供了一种确定TCI状态与信道/信号的对应关系的方案，再根据确定的TCI状态与网络设备进行数据传输，保证传输的信号质量，进而保证传输的可靠性。
在一些实施例中，信道/信号包括以下至少之一：
(1)基于CORESET(控制空间集)进行传输的PDCCH。
(2)周期性传输的PUCCH。
(3)semi-persistent(半静态调度)传输的PUCCH。
(4)configured grant(配置授权)的type 1(类型1)的PUSCH。
其中，本申请实施例中的PDCCH对应的CORESET关联的SS set(Search Space set，搜索空间集)包括多种情况。
在一些实施例中，PDCCH对应的CORESET关联的SS set包括USS sets(UE-specific Search Space set，终端特定搜索空间集)和/或Type3-PDCCH CSS sets(Common Search Space set，公共搜索空间集)。
在另一些实施例中，PDCCH对应的CORESET关联的SS set至少包括除Type3-PDCCH CSS sets以外的其他CSS set，且CORESET使用unified TCI状态(统一TCI状态)。
其中，该unified TCI状态即为上述实施例中网络设备通过指示信息指示的至少一套TCI状态。
可选地，网络设备为终端配置unified TCI状态，并配置该CORESET可以使用unified TCI状态。
在另一些实施例中，PDCCH对应的CORESET为CORESET#0，且CORESET使用unified TCI状态。
可选地，网络设备为终端配置unified TCI状态，并配置该CORESET可以使用unified TCI状态。
需要说明的是，若本申请实施例中的信道/信号为基于CORESET传输的PDCCH，则终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的 下行TCI状态或联合TCI状态。
也就是说，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态。或者，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的联合TCI状态，该联合TCI状态对应有下行传输的TCI状态。
在一些实施例中，终端将下行TCI状态或联合TCI状态确定为PDCCH调度的PDSCH或CSI-RS的TCI状态。
在本申请实施例中，终端确定下行TCI状态或联合TCI状态后，由于PDCCH可以调度PDSCH或CSI-RS，因此终端将确定的下行TCI状态或联合TCI状态作为PDSCH或CSI-RS的TCI状态。
若本申请实施例中的信道/信号为基于CORESET传输的PDCCH，则终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态或联合TCI状态。
也就是说，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态。或者，终端基于指示信息确定每个PDCCH对应的至少一套TCI状态中的联合TCI状态，该联合TCI状态对应有上行传输的TCI状态。
在一些实施例中，将上行TCI状态或联合TCI状态确定为每个PDCCH调度的PUCCH或PUSCH或SRS的TCI状态。
在本申请实施例中，终端确定上行TCI状态或联合TCI状态后，由于PDCCH可以调度PUCCH或PUSCH或SRS，因此终端将确定的下行TCI状态或联合TCI状态作为PUCCH或PUSCH或SRS的TCI状态。
需要说明的是，本申请实施例中网络设备还会通过配置信息为终端配置组标识。
在一些实施例中，网络设备向终端发送配置信息，终端接收配置信息，配置信息用于为信道/信号配置至少一个组标识。每个组标识对应不同的一套TCI状态。
可选地，若信道/信号为基于CORESET进行传输的PDCCH，则通过该配置信息为终端的某个CORESET配置一个或多个组标识，每个组标识对应的组对应不同的一套TCI状态。或者，若信道/信号为PUCCH，或者，为PUSCH，则通过该配置信息为终端的某个PUCCH资源或PUSCH配置一个或多个组标识，每个组标识对应的组对应不同的一套TCI状态。
在本申请实施例提供的方案中，网络设备为每个信道/信号配置至少一个组 标识，则可以根据该组标识确定信道/信号对应的组的标识，再根据每个组标识对应的至少一套TCI状态，进而确定该信道/信号对应的TCI状态，保证了确定的每个信道/信号对应的至少一套TCI状态的准确性，保证传输的信号质量，进而保证传输的可靠性。
图6示出了本申请一个示例性实施例提供的一种TCI状态确定装置的框图，参见图6，该装置包括：
接收模块601，用于接收网络设备发送的指示信息，指示信息指示至少一套TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，联合TCI状态同时应用于上行传输和下行传输；
确定模块602，用于根据指示信息，确定每个信道/信号对应的至少一套TCI状态。
在一些实施例中，指示信息还指示每套TCI状态对应的组标识，组标识为信道/信号对应的组的标识。
在一些实施例中，在至少一套TCI状态的数量小于信道/信号对应的组数的情况下，指示信息还指示每套TCI状态对应的组标识。
在一些实施例中，确定模块602，还用于根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态；
其中，映射关系包括每个组标识与每套TCI状态的对应关系。
在一些实施例中，确定模块602，还用于在至少一套TCI状态的数量与信道/信号对应的组数相同的情况下，根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，其中，至少一套TCI状态的数量为大于1的整数。
在一些实施例中，指示信息包括第一指示信息，第一指示信息激活至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为DCI中TCI状态指示域的一个码点对应的TCI状态。
在一些实施例中，指示信息包括第二指示信息和第三指示信息，第二指示信息用于激活DCI中TCI状态指示域的至少两个码点对应的TCI状态，每个码点对应至少一套TCI状态，第三指示信息指示一个码点。
在一些实施例中，第一指示信息和第二指示信息为MAC CE，第三指示信息为DCI。
在一些实施例中，信道/信号包括以下至少之一：
基于CORESET进行传输的PDCCH；
周期性传输的PUCCH；
semi-persistent传输的PUCCH；
configured grant的type 1的PUSCH。
在一些实施例中，PDCCH对应的CORESET关联的SS set包括USS sets和/或Type3-PDCCH CSS sets。
在一些实施例中，PDCCH对应的CORESET关联的SS set至少包括除Type3-PDCCH CSS sets以外的其他CSS set，且CORESET使用unified TCI状态。
在一些实施例中，PDCCH对应的CORESET为CORESET#0，且CORESET使用unified TCI状态。
在一些实施例中，确定模块602，还用于基于指示信息确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态或联合TCI状态。
在一些实施例中，确定模块602，还用于将下行TCI状态或联合TCI状态确定为PDCCH调度的PDSCH或CSI-RS的TCI状态。
在一些实施例中，确定模块602，还用于基于指示信息确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态或联合TCI状态。
在一些实施例中，确定模块602，还用于将上行TCI状态或联合TCI状态确定为每个PDCCH调度的物理上行控制信道PUCCH或物理上行共享信道PUSCH或探测参考信号SRS的TCI状态。
在一些实施例中，组标识包括以下至少一项：
CORESETPoolIndex；
CORESET组标识；
PUCCH组标识；
PUSCH组标识。
在一些实施例中，接收模块601，还用于接收配置信息，配置信息用于为信道/信号配置至少一个组标识，每个组标识对应不同的一套TCI状态。
需要说明的是，上述实施例提供的装置，在实现其功能时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以 上描述的全部或者部分功能。另外，上述实施例提供的装置与方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
图7示出了本申请一个示例性实施例提供的一种TCI状态确定装置的框图，参见图7，该装置包括：
发送模块701，用于向终端发送指示信息，指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，联合TCI状态同时应用于上行传输和下行传输；
指示信息用于供终端确定每个信道/信号对应的至少一套TCI状态。
在一些实施例中，指示信息还指示每套TCI状态对应的组标识，组标识为信道/信号对应的组的标识。
在一些实施例中，在至少一套TCI状态的数量小于信道/信号对应的组数的情况下，指示信息还指示每套TCI状态对应的组标识。
在一些实施例中，指示信息用于供终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态；
其中，映射关系包括每个组标识与每套TCI状态的对应关系。
在一些实施例中，在至少一套TCI状态的数量与信道/信号对应的组数相同的情况下，指示信息用于供终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，其中，至少一套TCI状态的数量为大于1的整数。
在一些实施例中，指示信息包括第一指示信息，第一指示信息激活至少一套TCI状态。
在一些实施例中，激活的至少一套TCI状态为下行控制信息DCI中TCI状态指示域的一个码点对应的TCI状态。
在一些实施例中，指示信息包括第二指示信息和第三指示信息，第二指示信息用于激活下行控制信息DCI中TCI状态指示域的至少两个码点对应的TCI状态，每个码点对应至少一套TCI状态，第三指示信息指示一个码点。
在一些实施例中，第一指示信息和第二指示信息为MAC CE，第三指示信息为DCI。
在一些实施例中，信道/信号包括以下至少之一：
基于CORESET进行传输的PDCCH；
周期性传输的PUCCH；
semi-persistent传输的PUCCH；
configured grant的type 1的PUSCH。
在一些实施例中，PDCCH对应的CORESET关联的搜索空间集SS set包括公共搜索空间集USS sets和/或类型3物理下行控制信道Type3-PDCCH特定搜索空间集CSS sets。
在一些实施例中，PDCCH对应的CORESET关联的SS set至少包括除Type3-PDCCH CSS sets以外的其他CSS set，且CORESET使用统一unified TCI状态。
在一些实施例中，PDCCH对应的CORESET为CORESET#0，且CORESET使用unified TCI状态。
在一些实施例中，指示信息还用于供终端确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态或联合TCI状态。
在一些实施例中，指示信息还用于供终端确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态或联合TCI状态。
在一些实施例中，组标识包括以下至少一项：
CORESETPoolIndex；
CORESET组标识；
PUCCH组标识；
PUSCH组标识。
在一些实施例中，发送模块701，还用于发送配置信息，配置信息用于为信道/信号配置至少一个组标识，每个组标识对应不同的一套TCI状态。
需要说明的是，上述实施例提供的装置，在实现其功能时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的装置与方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
图8示出了本申请一个示例性实施例提供的通信设备的结构示意图，该通信设备包括：处理器801、接收器802、发射器803、存储器804和总线805。
处理器801包括一个或者一个以上处理核心，处理器801通过运行软件程 序以及模块，从而执行各种功能应用以及信息处理。
接收器802和发射器803可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器804通过总线805与处理器801相连。
存储器804可用于存储至少一个程序代码，处理器801用于执行该至少一个程序代码，以实现上述方法实施例中的各个步骤。
此外，通信设备可以为终端或网络设备。存储器1004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
在示例性实施例中，还提供了一种计算机可读存储介质，所述可读存储介质中存储有可执行程序代码，所述可执行程序代码由处理器加载并执行以实现上述各个方法实施例提供的由通信设备执行的TCI状态确定方法。
在示例性实施例中，提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在终端或网络设备上运行时，用于实现如各个方法实施例提供的TCI状态确定方法。
在示例性实施例中，提供了计算机程序产品，当所述计算机程序产品被终端或网络设备的处理器执行时，其用于实现上述各个方法实施例提供的TCI状态确定方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (41)

  1. 一种TCI状态确定方法，其特征在于，所述方法由终端执行，所述方法包括：
    接收网络设备发送的指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
    根据所述指示信息，确定每个信道/信号对应的至少一套TCI状态。
  2. 根据权利要求1所述的方法，其特征在于，所述指示信息还指示所述每套TCI状态对应的组标识，所述组标识为所述信道/信号对应的组的标识。
  3. 根据权利要求2所述的方法，其特征在于，在所述至少一套TCI状态的数量小于所述信道/信号对应的组数的情况下，所述指示信息还指示所述每套TCI状态对应的组标识。
  4. 根据权利要求1所述的方法，其特征在于，所述根据所述指示信息，确定每个信道/信号对应的至少一套TCI状态，包括：
    根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态；
    其中，所述映射关系包括每个组标识与每套TCI状态的对应关系。
  5. 根据权利要求4所述的方法，其特征在于，所述根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，包括：
    在所述至少一套TCI状态的数量与所述信道/信号对应的组数相同的情况下，根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，其中，所述至少一套TCI状态的数量为大于1的整数。
  6. 根据权利要求2至5任一所述的方法，其特征在于，所述指示信息包括第一指示信息，所述第一指示信息激活所述至少一套TCI状态。
  7. 根据权利要求6所述的方法，其特征在于，激活的至少一套TCI状态为下行控制信息DCI中TCI状态指示域的一个码点对应的TCI状态。
  8. 根据权利要求2至5任一所述的方法，其特征在于，所述指示信息包括第二指示信息和第三指示信息，所述第二指示信息用于激活所述下行控制信息DCI中TCI状态指示域的至少两个码点对应的TCI状态，每个码点对应至少一套TCI状态，所述第三指示信息指示一个码点。
  9. 根据权利要求6至8任一所述的方法，其特征在于，第一指示信息和第二指示信息为媒体访问控制控制单元MAC CE，第三指示信息为DCI。
  10. 根据权利要求1所述的方法，其特征在于，所述信道/信号包括以下至少之一：
    基于控制资源集CORESET进行传输的物理下行控制信道PDCCH；
    周期性传输的物理上行控制信道PUCCH；
    半静态调度semi-persistent传输的物理上行共享信道PUCCH；
    配置授权configured grant的类型1type 1的物理上行共享信道PUSCH。
  11. 根据权利要求10所述的方法，其特征在于，所述PDCCH对应的CORESET关联的搜索空间集SS set包括终端特定搜索空间集USS sets和/或类型3物理下行控制信道Type3-PDCCH公共搜索空间集CSS sets。
  12. 根据权利要求10所述的方法，其特征在于，所述PDCCH对应的CORESET关联的SS set至少包括除Type3-PDCCH CSS sets以外的其他CSS set，且所述CORESET使用统一unified TCI状态。
  13. 根据权利要求10所述的方法，其特征在于，所述PDCCH对应的CORESET为CORESET#0，且所述CORESET使用unified TCI状态。
  14. 根据权利要求10所述的方法，其特征在于，所述根据所述指示信息，确定每个信道/信号对应的至少一套TCI状态，包括：
    基于所述指示信息确定所述每个PDCCH对应的至少一套TCI状态中的下行TCI状态或联合TCI状态。
  15. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    将所述下行TCI状态或所述联合TCI状态确定为所述PDCCH调度的物理下行共享信道PDSCH或信道状态信息参考信号CSI-RS的TCI状态。
  16. 根据权利要求10所述的方法，其特征在于，所述根据所述指示信息，确定每个信道/信号对应的至少一套TCI状态，包括：
    基于所述指示信息确定所述每个PDCCH对应的至少一套TCI状态中的上行TCI状态或联合TCI状态。
  17. 根据权利要求16所述的方法，其特征在于，所述方法还包括：
    将所述上行TCI状态或所述联合TCI状态确定为所述每个PDCCH调度的物理上行控制信道PUCCH或物理上行共享信道PUSCH或探测参考信号SRS的TCI状态。
  18. 根据权利要求2所述的方法，其特征在于，所述组标识包括以下至少一项：
    CORESETPoolIndex；
    CORESET组标识；
    PUCCH组标识；
    PUSCH组标识。
  19. 根据权利要求1-18任一项所述的方法，其特征在于，所述方法还包括：
    接收配置信息，所述配置信息用于为所述信道/信号配置至少一个组标识，每个组标识对应不同的一套TCI状态。
  20. 一种TCI状态确定方法，其特征在于，所述方法由网络设备执行，所述方法包括：
    向终端发送指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
    所述指示信息用于供所述终端确定每个信道/信号对应的至少一套TCI状态。
  21. 根据权利要求20所述的方法，其特征在于，所述指示信息还指示所述每套TCI状态对应的组标识，所述组标识为所述信道/信号对应的组的标识。
  22. 根据权利要求21所述的方法，其特征在于，在所述至少一套TCI状态的数量小于所述信道/信号对应的组数的情况下，所述指示信息还指示所述每套TCI状态对应的组标识。
  23. 根据权利要求20所述的方法，其特征在于，所述指示信息用于供所述终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态；
    其中，所述映射关系包括每个组标识与每套TCI状态的对应关系。
  24. 根据权利要求23所述的方法，其特征在于，在所述至少一套TCI状态的数量与所述信道/信号对应的组数相同的情况下，所述指示信息用于供所述终端根据映射关系，确定每个组标识指示的信道/信号对应的至少一套TCI状态，其中，所述至少一套TCI状态的数量为大于1的整数。
  25. 根据权利要求21所述的方法，其特征在于，所述指示信息包括第一指示信息，所述第一指示信息激活所述至少一套TCI状态。
  26. 根据权利要求25所述的方法，其特征在于，激活的至少一套TCI状态为下行控制信息DCI中TCI状态指示域的一个码点对应的TCI状态。
  27. 根据权利要求21至24任一所述的方法，其特征在于，所述指示信息包 括第二指示信息和第三指示信息，所述第二指示信息用于激活所述下行控制信息DCI中TCI状态指示域的至少两个码点对应的TCI状态，每个码点对应至少一套TCI状态，所述第三指示信息指示一个码点。
  28. 根据权利要求25至27任一所述的方法，其特征在于，第一指示信息和第二指示信息为MAC CE，第三指示信息为DCI。
  29. 根据权利要求20所述的方法，其特征在于，所述信道/信号包括以下至少之一：
    基于CORESET进行传输的PDCCH；
    周期性传输的PUCCH；
    semi-persistent传输的PUCCH；
    configured grant的type 1的PUSCH。
  30. 根据权利要求29所述的方法，其特征在于，所述PDCCH对应的CORESET关联的搜索空间集SS set包括公共搜索空间集USS sets和/或类型3物理下行控制信道Type3-PDCCH特定搜索空间集CSS sets。
  31. 根据权利要求29所述的方法，其特征在于，所述PDCCH对应的CORESET关联的SS set至少包括除Type3-PDCCH CSS sets以外的其他CSS set，且所述CORESET使用统一unified TCI状态。
  32. 根据权利要求29所述的方法，其特征在于，所述PDCCH对应的CORESET为CORESET#0，且所述CORESET使用unified TCI状态。
  33. 根据权利要求29所述的方法，其特征在于，所述指示信息还用于供所述终端确定每个PDCCH对应的至少一套TCI状态中的下行TCI状态或联合TCI状态。
  34. 根据权利要求29所述的方法，其特征在于，所述指示信息还用于供所述 终端确定每个PDCCH对应的至少一套TCI状态中的上行TCI状态或联合TCI状态。
  35. 根据权利要求21至34任一所述的方法，其特征在于，所述组标识包括以下至少一项：
    CORESETPoolIndex；
    CORESET组标识；
    PUCCH组标识；
    PUSCH组标识。
  36. 根据权利要求20-35任一项所述的方法，其特征在于，所述方法还包括：
    发送配置信息，所述配置信息用于为所述信道/信号配置至少一个组标识，每个组标识对应不同的一套TCI状态。
  37. 一种TCI状态确定装置，其特征在于，所述装置包括：
    接收模块，用于接收网络设备发送的指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
    确定模块，用于根据所述指示信息，确定每个信道/信号对应的至少一套TCI状态。
  38. 一种TCI状态确定装置，其特征在于，所述装置包括：
    发送模块，用于向终端发送指示信息，所述指示信息指示至少一套传输配置指示TCI状态，每套TCI状态包括上行TCI状态和下行TCI状态中的至少一项或每套TCI状态包括联合TCI状态，所述联合TCI状态同时应用于上行传输和下行传输；
    所述指示信息用于供所述终端确定每个信道/信号对应的至少一套TCI状态。
  39. 一种终端，其特征在于，所述终端包括：
    处理器；
    与所述处理器相连的收发器；
    其中，所述处理器被配置为加载并执行可执行指令以实现如权利要求1至19任一所述的TCI状态确定方法。
  40. 一种网络设备，其特征在于，所述网络设备包括：
    处理器；
    与所述处理器相连的收发器；
    其中，所述处理器被配置为加载并执行可执行指令以实现如权利要求20至36任一所述的TCI状态确定方法。
  41. 一种计算机可读存储介质，所述可读存储介质中存储有可执行程序代码，所述可执行程序代码由处理器加载并执行以实现如权利要求1至36任一所述的TCI状态确定方法。
PCT/CN2022/087766 2022-04-19 2022-04-19 Tci状态确定方法、装置、设备及存储介质 WO2023201547A1 (zh)

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