WO2024050816A1 - 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
WO2024050816A1
WO2024050816A1 PCT/CN2022/118112 CN2022118112W WO2024050816A1 WO 2024050816 A1 WO2024050816 A1 WO 2024050816A1 CN 2022118112 W CN2022118112 W CN 2022118112W WO 2024050816 A1 WO2024050816 A1 WO 2024050816A1
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Prior art keywords
tci
tci state
resource set
control resource
dci
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PCT/CN2022/118112
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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 CN202280003538.0A priority Critical patent/CN116097611A/zh
Priority to PCT/CN2022/118112 priority patent/WO2024050816A1/zh
Publication of WO2024050816A1 publication Critical patent/WO2024050816A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

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.
  • a beam is provided for data transmission between the network equipment and the terminal, and the beam indication method specifically indicates the QCL (state) corresponding to different channels through TCI (Transmission Configuration Indication, transmission configuration indication) state. Quasi Co-Location, quasi co-location) parameter.
  • the unified TCI state currently includes separate instructions for uplink transmission and downlink transmission, that is, including downlink TCI state and uplink TCI state, or a joint uplink and downlink instruction joint TCI state. That is, if the network device indicates a downlink TCI state for downlink transmission, then the downlink TCI state can be used for the terminal's PDSCH (Physical Downlink Shared Channel, physical downlink shared channel) and PDCCH (Physical Downlink Control Channel, physical downlink control channel) , and a part of CSI-RS (Channel State Information Reference Signal, Channel State Information Reference Signal); if the network device indicates an uplink TCI state for uplink transmission, then the uplink TCI state can be used for the terminal's PUSCH (Physical Uplink Shared Channel , Physical Uplink Shared Channel) and PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel), and part of SRS (Sounding Reference Signal, Detection Reference Signal). If
  • DCI Downlink Control Information
  • TCI indication field how the network device indicates to the terminal the TCI status corresponding to the physical shared channel scheduled by the DCI becomes an urgent problem that needs to be solved.
  • Embodiments of the present application provide a TCI status determination method, device, equipment and storage medium, ensuring that the physical shared channel is transmitted based on the determined TCI status, and improving the flexibility of transmitting the physical shared channel.
  • the technical solutions are as follows:
  • a TCI status determination method is provided, the method is executed by a terminal, and the method includes:
  • a method for determining TCI status is provided, the method is executed by a network device, and the method includes:
  • a TCI status determination device includes:
  • a receiving module configured to receive the first downlink control information DCI sent by the network device, where the first DCI is used to indicate the transmission resources of the physical shared channel;
  • a determining module configured to determine at least one first TCI state corresponding to the physical shared channel.
  • a device for determining TCI status includes:
  • a sending module configured to send a first DCI to the terminal, where the first DCI is used to indicate transmission resources of the physical shared channel, and the terminal is used to determine at least one first TCI state corresponding to the physical shared channel.
  • 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 Instructions may be 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 execute executable instructions to implement the TCI status determination method as described above.
  • a communication system includes a terminal and a network device.
  • the terminal is used to implement the TCI status determination method as described in the first aspect.
  • the network device is used to Implement the TCI status determination method as described in the second aspect 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 as described above. .
  • 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 the TCI status determination method in the above aspect.
  • 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 of the above aspect.
  • This application provides a solution for determining the transmission resources of the physical shared channel indicated by the DCI according to the DCI, and then determining the TCI status corresponding to the physical shared channel, ensuring that the physical shared channel is transmitted based on the determined TCI status, and improving the transmission physical sharing Channel flexibility.
  • 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 indication 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
  • Figure 6 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application
  • Figure 7 shows a flow chart of a TCI status determination method provided by an exemplary embodiment of the present application.
  • FIG. 8 shows a block diagram of a TCI status determination device provided by an exemplary embodiment of the present application
  • FIG. 9 shows a block diagram of a TCI status determination device provided by an exemplary embodiment of the present application.
  • Figure 10 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.
  • TCI state (state): The TCI state is used to indicate QCL parameters, which means that the terminal and network equipment in this application will transmit data based on the QCL parameters indicated by the TCI state.
  • QCL type D corresponds to at least one of Rx spatial parameter (spatial parameter), UL spatial filter (uplink spatial filter), spatial setting (spatial setting), spatial relation information (spatial relationship information), etc.
  • QCL Type D is commonly known as beam.
  • the TCI status is also used to indicate the path loss reference signal and/or power control parameter information related to the uplink channel/uplink signal.
  • the communication frequency band is in frequency range 2 (frequency range 2)
  • the high-frequency channel attenuates quickly, so the beam-based method is used for data transmission.
  • the channels include PDCCH (Physical Downlink Control Channel, physical downlink control channel), PDSCH (Physical Downlink Shared Channel, physical downlink shared channel), PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) or PUCCH (Physical Uplink Control Channel, Physical uplink control channel).
  • Reference signals include DMRS (Demodulation Reference signal, demodulation reference signal), CSI-RS (Channel State Information Reference Signal, channel state information reference signal), SRS (Sounding Reference Signal, detection reference signal), PRS (Positioning Reference Signal, positioning Reference signal) or at least one of TRS (Tracking Reference Signal, tracking reference signal).
  • the CSI-RS includes at least one of CSI-RS for channel state information measurement, CSI-RS for beam measurement, or CSI-RS for path loss estimation.
  • the SRS includes at least one of SRS for codebook-based or non-codebook-based channel state information measurement, SRS for beam measurement, or SRS for positioning measurement.
  • the TCI status of the above reference signal is independently indicated.
  • PDCCH and PUCCH use MAC CE to activate their respective TCI states respectively.
  • PDSCH and PUSCH use DCI signaling to indicate their respective TCI status respectively.
  • the unified TCI state currently includes separate instructions for uplink transmission and downlink transmission, that is, including downlink TCI state and uplink TCI state, or a joint uplink and downlink instruction joint TCI state. That is, if the network device indicates a downlink TCI state for downlink transmission, then the downlink TCI state can be used for the terminal's PDSCH and PDCCH, as well as part of the CSI-RS; if the network device indicates an uplink TCI state for uplink transmission, then This uplink TCI state can be used for the terminal's PUSCH and PUCCH, as well as part of the SRS. If the network device indicates a joint TCI state, the joint TCI state can be used for both uplink transmission and downlink transmission.
  • each TCI state can be joint TCI state, DL TCI state or UL TCI state.
  • each physical shared channel such as which one or more of the multiple TCI states is used by PDSCH, and which one or more of these multiple TCI states is used by PUSCH, also needs to be indicated.
  • DCI it is proposed to use DCI to indicate the TCI state used by the physical shared channel, in which the TCI state used by the physical channel can be indicated by adding an existing indication field of DCI or introducing a new indication field.
  • the DCI includes downlink DCI, which includes DCI format 1_1 or DCI format 1_2.
  • the existing indication field in the downlink DCI can be used or a new indication field can be introduced to indicate the TCI state used by the PDSCH.
  • the DCI also includes uplink DCI, which includes format 0_1 or DCI format 0_2.
  • the existing indication field in the uplink DCI can be used or a new indication field can be introduced to indicate the TCI state used by PUSCH.
  • the DCI also includes DCI format 1_0 and DCI format 0_0.
  • DCI format 1_0 is downlink DCI, which can be used to schedule PDSCH.
  • DCI format 0_0 is uplink DCI, which can be used to schedule PUSCH. Since DCI format 1_0 and DCI format 0_0 Both are fallback DCI, so the existing indication fields in DCI format 1_0 and DCI format 0_0 cannot be used or new indication fields are introduced to indicate the TCI state used by PDSCH or PUSCH. Therefore, this application provides a method for scheduling the DCI. The method of determining TCI state for transmission on a physical shared channel.
  • 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 send beam reports 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, etc.
  • the names of devices with network device functions may be different.
  • 5G NR New Radio, New Radio
  • they are called gNodeB or gNB.
  • the name "network device” may change.
  • At least two TRPs Transmission Reception Points
  • at least two network devices 20 are provided with at least one TRP on each network device, that is, at least two network devices 20 are provided with There are at least two TRPs. That is, at least two TRPs can be from the same cell or different cells.
  • 4 TRPs are set on the network device 20, and services can be provided for the terminal 10 through the 4 TRPs, and the terminal 10 can perform data transmission based on the 4 TRPs.
  • M-TRP transmission when data transmission is performed between the network device 20 and the terminal 10 through multiple TRPs, it is called M-TRP transmission, and when data transmission is performed between the network device 20 and the terminal 10 through a single TRP, it is called S-TRP transmission.
  • the indication field indicates that the TCI state used by the PDSCH is one or more TCI states indicated by the TCI field.
  • the "5G NR system" in the embodiments of this application may also be called a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solution described in the embodiments of this application can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system.
  • 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 the first DCI to the terminal, where the first DCI is used to indicate the transmission resources of the physical shared channel.
  • Step 302 The terminal receives the first DCI sent by the network device.
  • the first DCI is used to indicate the transmission resources of the physical shared channel.
  • the first DCI is used to indicate the transmission resources of the physical shared channel, that is to say, the first DCI is used to schedule the physical shared channel, so that data transmission can be performed between the network device and the terminal based on the physical shared channel.
  • the transmission resources refer to the resources occupied by the network device and the terminal when transmitting data through the physical shared channel.
  • the transmission resources include at least one of time domain resources, frequency domain resources and other resources, which are not limited in the embodiments of this application.
  • the physical shared channel includes at least one of PDSCH and PUSCH.
  • the first DCI used to indicate the physical shared channel if the physical shared channel is different, the first DCI is also different.
  • the first DCI is DCI format 1_0
  • the physical shared channel is PUSCH
  • the first DCI is DCI format 0_0.
  • Step 303 The terminal determines at least one first TCI state corresponding to the physical shared channel.
  • the terminal determines the transmission resources of the physical shared channel indicated by the first DCI according to the first DCI, and then determines at least one first TCI state corresponding to the physical shared channel, so as to facilitate communication between the terminal and the network device. Data transmission is performed based on the determined at least one first TCI state.
  • the first DCI used to indicate the transmission resources of the physical shared channel is not used to indicate at least one first TCI state. That is to say, the first DCI is only used to indicate the transmission resources and is not used to indicate the TCI state.
  • the steps performed by the terminal can independently form a new embodiment
  • the steps performed by the network device can independently form a new embodiment, which are not limited by the embodiment of the present application.
  • This application provides a solution for determining the transmission resources of the physical shared channel indicated by the DCI according to the DCI, and then determining the TCI status corresponding to the physical shared channel, ensuring that the physical shared channel is transmitted based on the determined TCI status, and improving the transmission physical sharing Channel flexibility.
  • the embodiment shown in Figure 3 explains how the terminal determines the first TCI state.
  • the following describes how the terminal determines the first TCI state according to the control resource set.
  • control resource set corresponds to a TCI state
  • terminal determines at least one first TCI state based on the TCI state corresponding to the control resource set.
  • the control resource set has a corresponding relationship with the TCI state.
  • the terminal can determine the TCI state corresponding to the control resource set based on the control resource set, and then determine at least one first TCI state from the TCI state corresponding to the control resource set. .
  • the set of control resources includes sets of control resources for different purposes.
  • the control resource set is a control resource set used to send the first DCI, or the control resource set is CORESET#0.
  • the terminal may determine at least one first TCI state according to the TCI state corresponding to the control resource set used to send the first DCI.
  • the terminal may also determine and indicate a first TCI state based on the TCI state corresponding to CORESET#0.
  • CORESET#0 in the embodiment of the present application may also be a CORESET used to send the first DCI, or CORESET#0 may not be a CORESET used to send the first DCI, which is not limited in the embodiment of the present application. .
  • the terminal can determine at least one first TCI state based on the TCI state corresponding to the control resource set.
  • the number of TCI states corresponding to the control resource set may be different. How the terminal determines the TCI state corresponding to the control resource set is explained below.
  • the method for the terminal to determine at least one first TCI state based on the TCI state corresponding to the control resource set includes any of the following:
  • At least one first TCI state is a TCI state corresponding to the control resource set.
  • control resource set corresponds to one TCI state, and the terminal directly determines this TCI state as the first TCI state.
  • the terminal directly determines the TCI state as the first TCI state.
  • CORESET#0 corresponds to a TCI state, and the terminal directly determines the TCI state as the first TCI state.
  • At least one first TCI state is one of the multiple TCI states corresponding to the control resource set.
  • control resource set corresponds to multiple TCI states
  • the terminal can select one TCI state from the multiple TCI states to determine it as the first TCI state. That is to say, the terminal can select one TCI state from multiple TCI states according to the default rule, and then determine the selected TCI state as the first TCI state.
  • the terminal can select one TCI state from the multiple TCI states corresponding to the control resource set used to send the first DCI and determine it as the first TCI. state. For another example, if CORESET#0 corresponds to multiple TCI states, the terminal may select one TCI state from the multiple TCI states corresponding to CORESET#0 and determine it as the first TCI state.
  • the terminal can determine the first TCI state (TCI state #1) as the first TCI state, or, the terminal The second TCI state (TCI state #2) may be determined as the first TCI state.
  • At least one first TCI state is the multiple TCI states corresponding to the control resource set.
  • the control resource set corresponds to multiple TCI states
  • the terminal can determine the multiple TCI states as the first TCI state. That is to say, the terminal may determine multiple TCI states corresponding to the control resource set as the first TCI state.
  • the terminal may determine the multiple TCI states corresponding to the control resource set used to send the first DCI as the first TCI state.
  • CORESET#0 corresponds to multiple TCI states, and the terminal may determine the multiple TCI states corresponding to CORESET#0 as the first TCI state.
  • the terminal can change the first TCI state (TCI state #1) and the second TCI state (TCI state # 2) are determined to be the first TCI state.
  • the embodiment of the present application takes the TCI state as an example for explanation.
  • the TCI status determined based on the control resource set includes the joint TCI status and/or the downlink TCI status. That is to say, the terminal can determine based on the joint TCI status and/or the downlink TCI status corresponding to the control resource set. /or downlink TCI status, determine the TCI status corresponding to the physical shared channel.
  • the TCI status determined based on the control resource set includes the joint TCI status and/or the uplink TCI status. That is to say, the terminal can determine based on the joint TCI status corresponding to the control resource set and the uplink TCI status. /or uplink TCI status, determine the TCI status corresponding to the physical shared channel.
  • the terminal can determine the TCI state corresponding to the physical shared channel based on the TCI state corresponding to the control resource set, thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, which improves the flexibility of transmitting the physical shared channel.
  • FIG. 4 shows a flow chart of a TCI status indication 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 401 The network device sends first indication information to the terminal.
  • the first indication information is used to indicate N TCI states.
  • Each TCI state includes at least one of a joint TCI state, an uplink TCI state, and a downlink TCI state.
  • the control resource set The corresponding TCI state is a subset of N TCI states, where N is a positive integer.
  • Step 402 The terminal receives the first indication information sent by the network device.
  • the network device can inform the terminal of N TCI states through indication information, and the subsequent terminal can determine the TCI state corresponding to the control resource set based on the N TCI states, where N is a positive integer.
  • the TCI state includes at least one of the joint TCI state, the uplink TCI state and the downlink TCI state. That is to say, the N TCI states can include N joint TCI states, N uplink TCI states, N downlink TCI states, N Downlink TCI states and uplink TCI states, or may also include N other TCI states, which are not limited in the embodiment of this application.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS, and SRS. That is to say, the N TCI states in the embodiment of the present application can be used for the QCL indication of at least one channel and/or at least one signal.
  • the first indication information is carried in a third medium access control layer control element (Medium Access Control Element, MAC CE), and the third MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the third MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of DCI (Downlink Control Information, DCI). That is, only the third MAC CE is sent but not the DCI.
  • the N TCI states indicated in the third MAC CE only correspond to one code point of the TCI domain in the DCI. Therefore, the base station does not need to send additional DCI to the terminal to indicate code points, thereby saving signaling overhead.
  • the first indication information is carried in the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI
  • the second DCI is used to indicate one code point among at least two code points. That is, the fourth MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the fourth MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI.
  • the second DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the fourth MAC CE.
  • the fourth MAC CE can indicate multiple sets of code point configurations, and each set of code point configurations corresponds to N TCI states. It should be noted that each code point corresponds to N TCI states, and the N value corresponding to each code point can be the same or different.
  • the terminal may determine based on the N TCI states configured by the network device that the TCI state corresponding to the control resource set actually refers to multiplexing part or all of the N TCI states.
  • the N TCI states are called indicated TCI states, which are used to indicate that the N TCI states can be applied to multiple channels/signals and are not limited to a single channel/signal.
  • some or all of the N indicated TCI states can be used for the transmission of at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • Step 403 The network device sends second indication information to the terminal.
  • the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states.
  • the second indication information is used to indicate that the control resource set corresponds to at least one TCI state.
  • the control resource set group corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states.
  • Step 404 The terminal receives the second indication information sent by the network device.
  • the network device can configure the corresponding TCI state for the control resource set of the terminal through the second indication information, and the TCI state corresponding to the configured control resource set Belongs to N TCI states.
  • the second indication information may indicate the TCI status corresponding to the control resource set in two ways.
  • the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4.
  • the second indication information may indicate that TCI state #1 and TCI state #2 are TCIs corresponding to the control resource set. state.
  • the second indication information may indicate that TCI state #1 and TCI state #4 are TCI states corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2, and the second indication information may indicate that TCI state #1 is the TCI state corresponding to the control resource set.
  • the second indication information is used to indicate that the control resource set group corresponding to the control resource set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4.
  • the second indication information may indicate that TCI state #1 and TCI state #2 are control resource set group #1.
  • the corresponding TCI state, and the control resource set group corresponding to the control resource set is control resource set group #1, so the TCI state corresponding to the control resource set is TCI state #1 and TCI state #2.
  • the second indication information may indicate that TCI state #1 and TCI state #4 are TCI states corresponding to the control resource set group corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2.
  • the second indication information may indicate that TCI state #1 is the TCI state corresponding to the control resource set group #1, and the control resource corresponding to the control resource set is The set group is control resource set group #1, so the TCI state corresponding to this control resource set is TCI state #1.
  • the corresponding relationship between the control resource set and the control resource set group adopts RRC and/or MAC CE configuration. That is to say, the network device configures the corresponding relationship between the control resource set and the control resource set group for the terminal through RRC and/or MAC CE.
  • the second indication information is indicated by at least one of RRC and the first MAC CE.
  • steps 403-404 only takes steps 403-404 as an example for description.
  • steps 403-404 may not be performed, and the terminal can determine the TCI state corresponding to the control resource set from the N TCI states through default rules.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states;
  • the solution for the terminal to determine the TCI state of the control resource set includes any of the following:
  • the first type By default, at least one TCI state among the N TCI states is determined as the TCI state corresponding to the control resource set.
  • the terminal after the terminal determines the N TCI states indicated by the network device, the terminal can determine the TCI state corresponding to the control resource set according to the default rules, and the TCI state corresponding to the control resource set belongs to the N TCI states.
  • the terminal determines at least one TCI state among the N TCI states as the TCI state corresponding to the control resource set by default.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and TCI state #1 and TCI state #2 are determined as TCI states corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2, and TCI state #1 is determined as the TCI state corresponding to the control resource set.
  • Second type By default, at least one TCI state among the N TCI states is determined as the TCI state corresponding to the control resource set group corresponding to the control resource set.
  • N TCI states include TCI state #1, TCI state #2, TCI state #3 and TCI state #4.
  • TCI state #1 and TCI state #2 are determined as the TCI states corresponding to control resource set group #1.
  • the control resource set group corresponding to the control resource set is control resource set group #1, so the TCI states corresponding to the control resource set are TCI state #1 and TCI state #2.
  • TCI state #1 and TCI state #4 are determined as TCI states corresponding to the control resource set group corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2.
  • TCI state #1 is determined to be the TCI state corresponding to control resource set group #1, and the control resource set group corresponding to the control resource set is the control resource.
  • Set group #1 so the TCI state corresponding to this control resource set is TCI state #1.
  • the corresponding relationship between the control resource set and the control resource set group adopts RRC and/or MAC CE configuration. That is to say, the network device configures the corresponding relationship between the control resource set and the control resource set group for the terminal through RRC and/or MAC CE.
  • the network device configures N TCI states for the terminal, and the terminal determines the TCI state corresponding to the control resource set based on the configured N TCI states, which expands the way for the terminal to determine the TCI state corresponding to the control resource set. , thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, which improves the flexibility of transmitting the physical shared channel.
  • the embodiment of the present application only takes the terminal to determine the TCI state corresponding to the control resource set based on the N TCI states configured by the network device as an example.
  • the network device can directly configure the TCI state corresponding to the control resource set for the terminal, and there is no need to determine the TCI state corresponding to the control resource set based on N TCI states.
  • the network device sends a second MAC CE to the terminal.
  • the second MAC CE is used to indicate one or more TCI states corresponding to the control resource set.
  • the terminal receives the second MAC CE sent by the network device. After determining one or more TCI states corresponding to the control resource set indicated by the second MAC CE, the subsequent terminal can determine at least one first TCI state based on the TCI state corresponding to the control resource set.
  • FIG. 3 explains how the terminal determines the first TCI state.
  • the following describes how the terminal determines the first TCI state based on the N TCI states configured by the network device.
  • 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 terminal and network equipment shown in Figure 1. The method includes at least part of the following content. :
  • Step 501 The network device sends third indication information to the terminal.
  • the third indication information is used to indicate N TCI states.
  • the TCI states include at least one of the joint TCI state, the uplink TCI state and the downlink TCI state.
  • the control resource set corresponds to The TCI state is a subset of N TCI states, where N is a positive integer.
  • Step 502 The terminal receives the third indication information sent by the network device.
  • the network device can inform the terminal of N TCI states through indication information, and the subsequent terminal can determine at least one first TCI state corresponding to the physical shared channel based on the N TCI states, where N is a positive integer.
  • the TCI state includes at least one of the joint TCI state, the uplink TCI state and the downlink TCI state. That is to say, the N TCI states can include N joint TCI states, N uplink TCI states, N downlink TCI states, N Downlink TCI states and uplink TCI states, or may also include N other TCI states, which are not limited in the embodiment of this application.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS, and SRS. That is to say, the N TCI states in the embodiment of the present application can be used for the QCL indication of at least one channel and/or at least one signal.
  • the third indication information is carried in a third medium access control layer control element (Medium Access Control Element, MAC CE), and the third MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the third MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of DCI (Downlink Control Information, DCI). That is, only the third MAC CE is sent but not the DCI.
  • the N TCI states indicated in the third MAC CE only correspond to one code point of the TCI domain in the DCI. Therefore, the base station does not need to send additional DCI to the terminal to indicate code points, thereby saving signaling overhead.
  • the first indication information is carried in the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI
  • the second DCI is used to indicate one code point among at least two code points. That is, the fourth MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the fourth MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI.
  • the second DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the fourth MAC CE.
  • the fourth MAC CE can indicate multiple sets of code point configurations, and each set of code point configurations corresponds to N TCI states. It should be noted that each code point corresponds to N TCI states, and the N value corresponding to each code point can be the same or different.
  • the terminal may determine based on the N TCI states configured by the network device that the TCI state corresponding to the control resource set actually refers to multiplexing part or all of the N TCI states.
  • the N TCI states are called indicated TCI states, which are used to indicate that the N TCI states can be applied to multiple channels/signals and are not limited to a single channel/signal.
  • some or all of the N indicated TCI states can be used for the transmission of at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • Step 503 The terminal determines at least one first TCI state based on N TCI states.
  • the terminal can select at least one TCI state from the N TCI states to determine it as the first TCI state.
  • the terminal determines at least one TCI state among the N TCI states as at least one first TCI state by default.
  • the terminal determines at least one TCI state among the N TCI states as at least one first TCI state by default.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and TCI state #1 and TCI state #2 are determined as the first TCI state.
  • TCI state #1 and TCI state #4 are determined as the first TCI state.
  • the N TCI states include TCI state #1 and TCI state #2, and TCI state #1 is determined as the first TCI state.
  • the terminal can default to the first TCI state That is, TCI state #1, or the second TCI state, namely TCI state #2, or two TCI states, namely TCI state #1 and TCI state #2, are determined to be the first TCI state.
  • the terminal can default to the first TCI state. That is, TCI state #1, or the second TCI state, namely TCI state #3, or two TCI states, namely TCI state #1 and TCI state #3, are determined to be the first TCI state.
  • the terminal determines at least one TCI state among the N TCI states indicated by the network device through the indication information as the first TCI state.
  • the network device sends fourth indication information to the terminal, the fourth indication information is used to indicate at least one TCI state among N TCI states, and the terminal receives the fourth indication information, and converts the N TCI states indicated by the fourth indication information. At least one TCI state among the states is determined to be at least a first TCI state.
  • the fourth indication information is used to indicate that the at least one first TCI state is at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and the fourth indication information may indicate that TCI state #1 and TCI state #2 are the first TCI state.
  • the fourth indication information may indicate that TCI state #1 and TCI state #4 are the first TCI state.
  • the N TCI states include TCI state #1 and TCI state #2, and the fourth indication information may indicate that TCI state #1 is the first TCI state.
  • the fourth indication information can indicate the first The TCI state is TCI state #1, or the second TCI state is TCI state #2, or the two TCI states are TCI state #1 and TCI state #2, which is the first TCI state.
  • the fourth indication information can indicate the first The TCI state is TCI state #1, or the second TCI state is TCI state #3, or the two TCI states are TCI state #1 and TCI state #3, which is the first TCI state.
  • the fourth indication information is indicated by at least one of RRC, MAC CE and DCI.
  • the fourth indication information is indicated by RRC.
  • the fourth indication information is indicated through MAC CE.
  • the fourth indication information is indicated by DCI.
  • the fourth indication information may be indicated by DCI.
  • the DCI indicating the fourth indication information is DCI format 1_1 or DCI format 1_2.
  • the DCI is DCI format 0_1 or DCI format 0_2.
  • the DCI is used to indicate the fourth indication information of the first TCI state of the PDSCH. If the DCI is DCI format 0_1 or DCI format 0_2, then the DCI is used to indicate the fourth indication information of the first TCI state of PUSCH.
  • the DCI indicating the fourth indication information may include transmission resource configuration (DL assignment, or UL assignment), that is, time domain resources, frequency domain resources, modulation and coding scheme MCS, etc. used to indicate PDSCH or PUSCH. etc.;
  • the DCI may not include transmission resource configuration, that is, it may not include time domain resources, frequency domain resources, modulation and coding scheme MCS, etc. of PDSCH or PUSCH.
  • the terminal determines at least one first TCI state for the physical shared channel based on the N TCI states configured by the network device, thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, and improving the transmission physical sharing. Channel flexibility.
  • any one can be used among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE, the MAC CE carrying the second indication information and the MAC CE carrying the fourth indication information.
  • Two or more MAC CEs are different MAC CEs, or they are the same MAC CE.
  • any two or more DCIs may be different DCIs, or they may be the same DCI.
  • the RRC carrying the second indication information and the RRC carrying the fourth indication information in this application may be different RRCs or the same RRC.
  • Figure 6 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 601 The terminal receives the first DCI sent by the network device.
  • the first DCI is used to indicate the transmission resources of the physical shared channel.
  • the first DCI is used to indicate the transmission resources of the physical shared channel, that is to say, the first DCI is used to schedule the physical shared channel, so that data transmission can be performed between the network device and the terminal based on the physical shared channel.
  • the transmission resources refer to the resources occupied by the network device and the terminal when transmitting data through the physical shared channel.
  • the transmission resources include at least one of time domain resources, frequency domain resources and other resources, which are not limited in the embodiments of this application.
  • the physical shared channel includes at least one of PDSCH and PUSCH.
  • the first DCI used to indicate the physical shared channel if the physical shared channel is different, the first DCI is also different.
  • the first DCI is DCI format 1_0
  • the physical shared channel is PUSCH
  • the first DCI is DCI format 0_0.
  • Step 602 The terminal determines at least one first TCI state corresponding to the physical shared channel.
  • the terminal determines the transmission resources of the physical shared channel indicated by the first DCI according to the first DCI, and then determines at least one first TCI state corresponding to the physical shared channel, so as to facilitate communication between the terminal and the network device. Data transmission is performed based on the determined at least one first TCI state.
  • the first DCI used to indicate the transmission resources of the physical shared channel is not used to indicate at least one first TCI state. That is to say, the first DCI is only used to indicate the transmission resources and is not used to indicate the TCI state.
  • This application provides a solution for determining the transmission resources of the physical shared channel indicated by the DCI according to the DCI, and then determining the TCI status corresponding to the physical shared channel, ensuring that the physical shared channel is transmitted based on the determined TCI status, and improving the transmission physical sharing Channel flexibility.
  • the embodiment shown in Figure 6 explains how the terminal determines the first TCI state.
  • the following describes how the terminal determines the first TCI state according to the control resource set.
  • control resource set corresponds to a TCI state
  • terminal determines at least one first TCI state based on the TCI state corresponding to the control resource set.
  • the control resource set has a corresponding relationship with the TCI state.
  • the terminal can determine the TCI state corresponding to the control resource set based on the control resource set, and then determine at least one first TCI state from the TCI state corresponding to the control resource set. .
  • the set of control resources includes sets of control resources for different purposes.
  • the control resource set is a control resource set used to send the first DCI, or the control resource set is CORESET#0.
  • the terminal may determine at least one first TCI state according to the TCI state corresponding to the control resource set used to send the first DCI.
  • the terminal may also determine and indicate a first TCI state based on the TCI state corresponding to CORESET#0.
  • CORESET#0 in the embodiment of the present application may also be a CORESET used to send the first DCI, or CORESET#0 may not be a CORESET used to send the first DCI, which is not limited in the embodiment of the present application. .
  • the terminal can determine at least one first TCI state based on the TCI state corresponding to the control resource set.
  • the number of TCI states corresponding to the control resource set may be different. How the terminal determines the TCI state corresponding to the control resource set is explained below.
  • the method for the terminal to determine at least one first TCI state based on the TCI state corresponding to the control resource set includes any of the following:
  • At least one first TCI state is a TCI state corresponding to the control resource set.
  • control resource set corresponds to one TCI state, and the terminal directly determines this TCI state as the first TCI state.
  • the terminal directly determines the TCI state as the first TCI state.
  • CORESET#0 corresponds to a TCI state, and the terminal directly determines the TCI state as the first TCI state.
  • At least one first TCI state is one of the multiple TCI states corresponding to the control resource set.
  • control resource set corresponds to multiple TCI states
  • the terminal can select one TCI state from the multiple TCI states to determine it as the first TCI state. That is to say, the terminal can select one TCI state from multiple TCI states according to the default rule, and then determine the selected TCI state as the first TCI state.
  • the terminal can select one TCI state from the multiple TCI states corresponding to the control resource set used to send the first DCI and determine it as the first TCI. state. For another example, if CORESET#0 corresponds to multiple TCI states, the terminal may select one TCI state from the multiple TCI states corresponding to CORESET#0 and determine it as the first TCI state.
  • the terminal can determine the first TCI state (TCI state #1) as the first TCI state, or, the terminal The second TCI state (TCI state #2) may be determined as the first TCI state.
  • At least one first TCI state is the multiple TCI states corresponding to the control resource set.
  • the control resource set corresponds to multiple TCI states
  • the terminal can determine the multiple TCI states as the first TCI state. That is to say, the terminal may determine multiple TCI states corresponding to the control resource set as the first TCI state.
  • the terminal may determine the multiple TCI states corresponding to the control resource set used to send the first DCI as the first TCI state.
  • CORESET#0 corresponds to multiple TCI states, and the terminal may determine the multiple TCI states corresponding to CORESET#0 as the first TCI state.
  • the terminal can change the first TCI state (TCI state #1) and the second TCI state (TCI state # 2) are determined to be the first TCI state.
  • the embodiment of the present application takes the TCI state as an example for explanation.
  • the TCI status determined based on the control resource set includes the joint TCI status and/or the downlink TCI status. That is to say, the terminal can determine based on the joint TCI status and/or the downlink TCI status corresponding to the control resource set. /or downlink TCI status, determine the TCI status corresponding to the physical shared channel.
  • the TCI status determined based on the control resource set includes the joint TCI status and/or the uplink TCI status. That is to say, the terminal can determine based on the joint TCI status corresponding to the control resource set and the uplink TCI status. /or uplink TCI status, determine the TCI status corresponding to the physical shared channel.
  • the terminal can determine the TCI state corresponding to the physical shared channel based on the TCI state corresponding to the control resource set, thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, which improves the flexibility of transmitting the physical shared channel.
  • the above embodiment describes how the terminal determines the first TCI state according to the TCI state corresponding to the control resource set. Next, how the terminal determines the TCI status corresponding to the control resource set will be described.
  • the terminal receives first indication information sent by the network device.
  • the first indication information is used to indicate N TCI states.
  • Each TCI state includes at least one of a joint TCI state, an uplink TCI state, and a downlink TCI state.
  • the TCI state corresponding to the control resource set is a subset of N TCI states, and N is a positive integer.
  • the network device can inform the terminal of N TCI states through indication information, and the subsequent terminal can determine the TCI state corresponding to the control resource set based on the N TCI states, where N is a positive integer.
  • the TCI state includes at least one of the joint TCI state, the uplink TCI state and the downlink TCI state. That is to say, the N TCI states can include N joint TCI states, N uplink TCI states, N downlink TCI states, N Downlink TCI states and uplink TCI states, or may also include N other TCI states, which are not limited in the embodiment of this application.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS, and SRS. That is to say, the N TCI states in the embodiment of the present application can be used for the QCL indication of at least one channel and/or at least one signal.
  • the first indication information is carried in a third medium access control layer control element (Medium Access Control Element, MAC CE), and the third MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the third MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of DCI (Downlink Control Information, DCI). That is, only the third MAC CE is sent but not the DCI.
  • the N TCI states indicated in the third MAC CE only correspond to one code point of the TCI domain in the DCI. Therefore, the base station does not need to send additional DCI to the terminal to indicate code points, thus saving signaling overhead.
  • the first indication information is carried in the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI
  • the second DCI is used to indicate one code point among at least two code points. That is, the fourth MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the fourth MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI.
  • the second DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the fourth MAC CE.
  • the fourth MAC CE can indicate multiple sets of code point configurations, and each set of code point configurations corresponds to N TCI states. It should be noted that each code point corresponds to N TCI states, and the N value corresponding to each code point can be the same or different.
  • the terminal may determine based on the N TCI states configured by the network device that the TCI state corresponding to the control resource set actually refers to multiplexing part or all of the N TCI states.
  • the N TCI states are called indicated TCI states, which are used to indicate that the N TCI states can be applied to multiple channels/signals and are not limited to a single channel/signal.
  • some or all of the N indicated TCI states can be used for the transmission of at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • the terminal receives the second indication information sent by the network device, the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states, or the second indication information is used to indicate the control resource set.
  • the control resource set group corresponding to the resource set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states.
  • the network device can configure the corresponding TCI state for the control resource set of the terminal through the second indication information, and the TCI state corresponding to the configured control resource set Belongs to N TCI states.
  • the second indication information may indicate the TCI status corresponding to the control resource set in two ways.
  • the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4.
  • the second indication information may indicate that TCI state #1 and TCI state #2 are TCIs corresponding to the control resource set. state.
  • the second indication information may indicate that TCI state #1 and TCI state #4 are TCI states corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2, and the second indication information may indicate that TCI state #1 is the TCI state corresponding to the control resource set.
  • the second indication information is used to indicate that the control resource set group corresponding to the control resource set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4.
  • the second indication information may indicate that TCI state #1 and TCI state #2 are control resource set group #1.
  • the corresponding TCI state, and the control resource set group corresponding to the control resource set is control resource set group #1, so the TCI state corresponding to the control resource set is TCI state #1 and TCI state #2.
  • the second indication information may indicate that TCI state #1 and TCI state #4 are TCI states corresponding to the control resource set group corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2.
  • the second indication information may indicate that TCI state #1 is the TCI state corresponding to the control resource set group #1, and the control resource corresponding to the control resource set is The set group is control resource set group #1, so the TCI state corresponding to this control resource set is TCI state #1.
  • the corresponding relationship between the control resource set and the control resource set group adopts RRC configuration. That is to say, the network device configures the corresponding relationship between the control resource set and the control resource set group for the terminal through RRC.
  • the second indication information is indicated by at least one of RRC and the first MAC CE.
  • the terminal can determine the TCI state corresponding to the control resource set from N TCI states through default rules.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states;
  • the solution for the terminal to determine the TCI state of the control resource set includes any of the following:
  • the first type By default, at least one TCI state among the N TCI states is determined as the TCI state corresponding to the control resource set.
  • the terminal after the terminal determines the N TCI states indicated by the network device, the terminal can determine the TCI state corresponding to the control resource set according to the default rules, and the TCI state corresponding to the control resource set belongs to the N TCI states.
  • the terminal determines at least one TCI state among the N TCI states as the TCI state corresponding to the control resource set by default.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and TCI state #1 and TCI state #2 are determined as TCI states corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2, and TCI state #1 is determined as the TCI state corresponding to the control resource set.
  • Second type By default, at least one TCI state among the N TCI states is determined as the TCI state corresponding to the control resource set group corresponding to the control resource set.
  • N TCI states include TCI state #1, TCI state #2, TCI state #3 and TCI state #4.
  • TCI state #1 and TCI state #2 are determined as the TCI states corresponding to control resource set group #1.
  • the control resource set group corresponding to the control resource set is control resource set group #1, so the TCI states corresponding to the control resource set are TCI state #1 and TCI state #2.
  • TCI state #1 and TCI state #4 are determined as TCI states corresponding to the control resource set group corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2.
  • TCI state #1 is determined to be the TCI state corresponding to control resource set group #1, and the control resource set group corresponding to the control resource set is the control resource.
  • Set group #1 so the TCI state corresponding to this control resource set is TCI state #1.
  • the corresponding relationship between the control resource set and the control resource set group adopts RRC and/or MAC CE configuration. That is to say, the network device configures the corresponding relationship between the control resource set and the control resource set group for the terminal through RRC and/or MAC CE.
  • the network device configures N TCI states for the terminal, and the terminal determines the TCI state corresponding to the control resource set based on the configured N TCI states, which expands the way for the terminal to determine the TCI state corresponding to the control resource set. , thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, which improves the flexibility of transmitting the physical shared channel.
  • the embodiment of the present application only takes the terminal to determine the TCI state corresponding to the control resource set based on the N TCI states configured by the network device as an example.
  • the network device can directly configure the TCI state corresponding to the control resource set for the terminal, and there is no need to determine the TCI state corresponding to the control resource set based on N TCI states.
  • the network device sends a second MAC CE to the terminal.
  • the second MAC CE is used to indicate one or more TCI states corresponding to the control resource set.
  • the terminal receives the second MAC CE sent by the network device. After determining one or more TCI states corresponding to the control resource set indicated by the second MAC CE, the subsequent terminal can determine at least one first TCI state based on the TCI state corresponding to the control resource set.
  • the embodiment shown in Figure 6 explains how the terminal determines the first TCI state.
  • the following describes how the terminal determines the first TCI state based on the N TCI states configured by the network device.
  • the terminal receives third indication information sent by the network device.
  • the third indication information is used to indicate N TCI states.
  • the TCI states include at least one of a joint TCI state, an uplink TCI state, and a downlink TCI state.
  • Control The TCI state corresponding to the resource set is a subset of N TCI states, N is a positive integer, and the terminal determines at least one first TCI state based on the N TCI states.
  • the network device can inform the terminal of N TCI states through indication information, and the subsequent terminal can determine at least one first TCI state corresponding to the physical shared channel based on the N TCI states, where N is a positive integer.
  • the TCI state includes at least one of the joint TCI state, the uplink TCI state and the downlink TCI state. That is to say, the N TCI states can include N joint TCI states, N uplink TCI states, N downlink TCI states, N Downlink TCI states and uplink TCI states, or may also include N other TCI states, which are not limited in the embodiment of this application.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS, and SRS. That is to say, the N TCI states in the embodiment of the present application can be used for the QCL indication of at least one channel and/or at least one signal.
  • the third indication information is carried in a third medium access control layer control element (Medium Access Control Element, MAC CE), and the third MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the third MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of DCI (Downlink Control Information, DCI). That is, only the third MAC CE is sent but not the DCI.
  • the N TCI states indicated in the third MAC CE only correspond to one code point of the TCI domain in the DCI. Therefore, the base station does not need to send additional DCI to the terminal to indicate code points, thereby saving signaling overhead.
  • the first indication information is carried in the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI
  • the second DCI is used to indicate one code point among at least two code points. That is, the fourth MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the fourth MAC CE indicates N TCI states corresponding to at least two code points in the TCI domain of the second DCI.
  • the second DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the fourth MAC CE.
  • the fourth MAC CE can indicate multiple sets of code point configurations, and each set of code point configurations corresponds to N TCI states. It should be noted that each code point corresponds to N TCI states, and the N value corresponding to each code point can be the same or different.
  • the terminal may determine based on the N TCI states configured by the network device that the TCI state corresponding to the control resource set actually refers to multiplexing part or all of the N TCI states.
  • the N TCI states are called indicated TCI states, which are used to indicate that the N TCI states can be applied to multiple channels/signals and are not limited to a single channel/signal.
  • some or all of the N indicated TCI states can be used for the transmission of at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • the terminal can select at least one TCI state from the N TCI states to determine it as the first TCI state.
  • the terminal determines at least one TCI state among the N TCI states as at least one first TCI state by default.
  • the terminal determines at least one TCI state among the N TCI states as at least one first TCI state by default.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and TCI state #1 and TCI state #2 are determined as the first TCI state.
  • TCI state #1 and TCI state #4 are determined as the first TCI state.
  • the N TCI states include TCI state #1 and TCI state #2, and TCI state #1 is determined as the first TCI state.
  • the terminal can change the first TCI state by default. That is, TCI state #1, or the second TCI state, TCI state #2, or two TCI states, namely TCI state #1 and TCI state #2, are determined to be the first TCI state.
  • the terminal can default to the first TCI state. That is, TCI state #1, or the second TCI state, namely TCI state #3, or two TCI states, namely TCI state #1 and TCI state #3, are determined to be the first TCI state.
  • the terminal determines at least one TCI state among the N TCI states indicated by the network device through the indication information as the first TCI state.
  • the network device sends fourth indication information to the terminal, the fourth indication information is used to indicate at least one TCI state among N TCI states, and the terminal receives the fourth indication information, and converts the N TCI states indicated by the fourth indication information. At least one TCI state among the states is determined to be at least a first TCI state.
  • the fourth indication information is used to indicate that the at least one first TCI state is at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and the fourth indication information may indicate that TCI state #1 and TCI state #2 are the first TCI state.
  • the fourth indication information may indicate that TCI state #1 and TCI state #4 are the first TCI state.
  • the N TCI states include TCI state #1 and TCI state #2, and the fourth indication information may indicate that TCI state #1 is the first TCI state.
  • the fourth indication information can indicate the first The TCI state is TCI state #1, or the second TCI state is TCI state #2, or the two TCI states are TCI state #1 and TCI state #2, which is the first TCI state.
  • the fourth indication information can indicate the first The TCI state is TCI state #1, or the second TCI state is TCI state #3, or the two TCI states are TCI state #1 and TCI state #3, which is the first TCI state.
  • the fourth indication information is indicated by at least one of RRC, MAC CE and DCI.
  • the fourth indication information is indicated by RRC.
  • the fourth indication information is indicated through MAC CE.
  • the fourth indication information is indicated by DCI.
  • the fourth indication information may be indicated by DCI.
  • the DCI indicating the fourth indication information is DCI format 1_1 or DCI format 1_2.
  • the DCI indicating the fourth indication information is DCI format 0_1 or DCI format 0_2.
  • the DCI is used to indicate the fourth indication information of the first TCI state of the PDSCH. If the DCI is DCI format 0_1 or DCI format 0_2, then the DCI is used to indicate the fourth indication information of the first TCI state of PUSCH.
  • the DCI indicating the fourth indication information may include transmission resource configuration (DL assignment, or UL assignment), that is, time domain resources, frequency domain resources, modulation and coding scheme MCS, etc. used to indicate PDSCH or PUSCH. etc.;
  • the DCI may not include transmission resource configuration, that is, it may not include time domain resources, frequency domain resources, modulation and coding scheme MCS, etc. of PDSCH or PUSCH.
  • the terminal determines at least one first TCI state for the physical shared channel based on the N TCI states configured by the network device, thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, and improving the transmission physical sharing. Channel flexibility.
  • any one can be used among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE, the MAC CE carrying the second indication information and the MAC CE carrying the fourth indication information.
  • Two or more MAC CEs are different MAC CEs, or they are the same MAC CE.
  • any two or more DCIs may be different DCIs, or they may be the same DCI.
  • the RRC carrying the second indication information and the RRC carrying the fourth indication information in this application may be different RRCs or the same RRC.
  • Figure 7 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 701 The network device sends the first DCI to the terminal.
  • the first DCI is used to indicate the transmission resources of the physical shared channel, and the terminal is used to determine at least one first TCI state corresponding to the physical shared channel.
  • the first DCI is used to indicate the transmission resources of the physical shared channel, that is to say, the first DCI is used to schedule the physical shared channel, so that data transmission can be performed between the network device and the terminal based on the physical shared channel.
  • the transmission resources refer to the resources occupied by the network device and the terminal when transmitting data through the physical shared channel.
  • the transmission resources include at least one of time domain resources, frequency domain resources and other resources, which are not limited in the embodiments of this application.
  • the physical shared channel includes at least one of PDSCH and PUSCH.
  • the first DCI used to indicate the physical shared channel if the physical shared channel is different, the first DCI is also different.
  • the first DCI is DCI format 1_0
  • the physical shared channel is PUSCH
  • the first DCI is DCI format 0_0.
  • the terminal determines the transmission resources of the physical shared channel indicated by the first DCI according to the first DCI, and then determines at least one first TCI state corresponding to the physical shared channel, so as to facilitate communication between the terminal and the network device. Data transmission is performed based on the determined at least one first TCI state.
  • the first DCI used to indicate the transmission resources of the physical shared channel is not used to indicate at least one first TCI state. That is to say, the first DCI is only used to indicate the transmission resources and is not used to indicate the TCI state.
  • This application provides a solution for determining the transmission resources of the physical shared channel indicated by the DCI according to the DCI, and then determining the TCI status corresponding to the physical shared channel, ensuring that the physical shared channel is transmitted based on the determined TCI status, and improving the transmission physical sharing Channel flexibility.
  • the embodiment shown in Figure 7 explains how the terminal determines the first TCI state.
  • the following describes how the terminal determines the first TCI state according to the control resource set.
  • control resource set corresponds to a TCI state
  • at least one first TCI state is determined based on the TCI state corresponding to the control resource set.
  • the control resource set has a corresponding relationship with the TCI state.
  • the terminal can determine the TCI state corresponding to the control resource set based on the control resource set, and then determine at least one first TCI state from the TCI state corresponding to the control resource set. .
  • the set of control resources includes sets of control resources for different purposes.
  • the control resource set is a control resource set used to send the first DCI, or the control resource set is CORESET#0.
  • the terminal may determine at least one first TCI state according to the TCI state corresponding to the control resource set used to send the first DCI.
  • the terminal may also determine and indicate a first TCI state based on the TCI state corresponding to CORESET#0.
  • CORESET#0 in the embodiment of the present application may also be a CORESET used to send the first DCI, or CORESET#0 may not be a CORESET used to send the first DCI, which is not limited in the embodiment of the present application. .
  • the terminal can determine at least one first TCI state based on the TCI state corresponding to the control resource set.
  • the number of TCI states corresponding to the control resource set may be different. How the terminal determines the TCI state corresponding to the control resource set is explained below.
  • the method for the terminal to determine at least one first TCI state based on the TCI state corresponding to the control resource set includes any of the following:
  • At least one first TCI state is a TCI state corresponding to the control resource set.
  • control resource set corresponds to one TCI state, and the terminal directly determines this TCI state as the first TCI state.
  • the terminal directly determines the TCI state as the first TCI state.
  • CORESET#0 corresponds to a TCI state, and the terminal directly determines the TCI state as the first TCI state.
  • At least one first TCI state is one of the multiple TCI states corresponding to the control resource set.
  • control resource set corresponds to multiple TCI states
  • the terminal can select one TCI state from the multiple TCI states to determine it as the first TCI state. That is to say, the terminal can select one TCI state from multiple TCI states according to the default rule, and then determine the selected TCI state as the first TCI state.
  • the terminal can select one TCI state from the multiple TCI states corresponding to the control resource set used to send the first DCI and determine it as the first TCI. state. For another example, if CORESET#0 corresponds to multiple TCI states, the terminal may select one TCI state from the multiple TCI states corresponding to CORESET#0 and determine it as the first TCI state.
  • the terminal can determine the first TCI state (TCI state #1) as the first TCI state, or, the terminal The second TCI state (TCI state #2) may be determined as the first TCI state.
  • At least one first TCI state is the multiple TCI states corresponding to the control resource set.
  • the control resource set corresponds to multiple TCI states
  • the terminal can determine the multiple TCI states as the first TCI state. That is to say, the terminal may determine multiple TCI states corresponding to the control resource set as the first TCI state.
  • the terminal may determine the multiple TCI states corresponding to the control resource set used to send the first DCI as the first TCI state.
  • CORESET#0 corresponds to multiple TCI states, and the terminal may determine the multiple TCI states corresponding to CORESET#0 as the first TCI state.
  • the terminal can change the first TCI state (TCI state #1) and the second TCI state (TCI state # 2) are determined to be the first TCI state.
  • the embodiment of the present application takes the TCI state as an example for explanation.
  • the TCI status determined based on the control resource set includes the joint TCI status and/or the downlink TCI status. That is to say, the terminal can determine based on the joint TCI status and/or the downlink TCI status corresponding to the control resource set. /or downlink TCI status, determine the TCI status corresponding to the physical shared channel.
  • the TCI status determined based on the control resource set includes the joint TCI status and/or the uplink TCI status. That is to say, the terminal can determine based on the joint TCI status corresponding to the control resource set and the uplink TCI status. /or uplink TCI status, determine the TCI status corresponding to the physical shared channel.
  • the terminal can determine the TCI state corresponding to the physical shared channel based on the TCI state corresponding to the control resource set, thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, which improves the flexibility of transmitting the physical shared channel.
  • the above embodiment describes how the terminal determines the first TCI state according to the TCI state corresponding to the control resource set. Next, how the terminal determines the TCI status corresponding to the control resource set will be described.
  • the network device sends first indication information to the terminal, and the first indication information is used to indicate N TCI states, each TCI state includes at least one of a joint TCI state, an uplink TCI state, and a downlink TCI state,
  • the TCI state corresponding to the control resource set is a subset of N TCI states, where N is a positive integer.
  • the network device can inform the terminal of N TCI states through indication information, and the subsequent terminal can determine the TCI state corresponding to the control resource set based on the N TCI states, where N is a positive integer.
  • the TCI state includes at least one of the joint TCI state, the uplink TCI state and the downlink TCI state. That is to say, the N TCI states can include N joint TCI states, N uplink TCI states, N downlink TCI states, N Downlink TCI states and uplink TCI states, or may also include N other TCI states, which are not limited in the embodiment of this application.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS, and SRS. That is to say, the N TCI states in the embodiment of the present application can be used for the QCL indication of at least one channel and/or at least one signal.
  • the first indication information is carried in a third medium access control layer control element (Medium Access Control Element, MAC CE), and the third MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the third MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of DCI (Downlink Control Information, DCI). That is, only the third MAC CE is sent but not the DCI.
  • the N TCI states indicated in the third MAC CE only correspond to one code point of the TCI domain in the DCI. Therefore, the base station does not need to send additional DCI to the terminal to indicate code points, thus saving signaling overhead.
  • the first indication information is carried in the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI
  • the second DCI is used to indicate one code point among at least two code points. That is, the fourth MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the fourth MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI.
  • the second DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the fourth MAC CE.
  • the fourth MAC CE can indicate multiple sets of code point configurations, and each set of code point configurations corresponds to N TCI states. It should be noted that each code point corresponds to N TCI states, and the N value corresponding to each code point can be the same or different.
  • the terminal may determine based on the N TCI states configured by the network device that the TCI state corresponding to the control resource set actually refers to multiplexing part or all of the N TCI states.
  • the N TCI states are called indicated TCI states, which are used to indicate that the N TCI states can be applied to multiple channels/signals and are not limited to a single channel/signal.
  • some or all of the N indicated TCI states can be used for the transmission of at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • the network device sends second indication information to the terminal, the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states, or the second indication information is used to indicate the control resource set
  • the control resource set group corresponding to the set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states.
  • the network device can configure the corresponding TCI state for the control resource set of the terminal through the second indication information, and the TCI state corresponding to the configured control resource set Belongs to N TCI states.
  • the second indication information may indicate the TCI status corresponding to the control resource set in two ways.
  • the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4.
  • the second indication information may indicate that TCI state #1 and TCI state #2 are TCIs corresponding to the control resource set. state.
  • the second indication information may indicate that TCI state #1 and TCI state #4 are TCI states corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2, and the second indication information may indicate that TCI state #1 is the TCI state corresponding to the control resource set.
  • the second indication information is used to indicate that the control resource set group corresponding to the control resource set corresponds to at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4.
  • the second indication information may indicate that TCI state #1 and TCI state #2 are control resource set group #1.
  • the corresponding TCI state, and the control resource set group corresponding to the control resource set is control resource set group #1, so the TCI state corresponding to the control resource set is TCI state #1 and TCI state #2.
  • the second indication information may indicate that TCI state #1 and TCI state #4 are TCI states corresponding to the control resource set group corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2.
  • the second indication information may indicate that TCI state #1 is the TCI state corresponding to the control resource set group #1, and the control resource corresponding to the control resource set is The set group is control resource set group #1, so the TCI state corresponding to this control resource set is TCI state #1.
  • the corresponding relationship between the control resource set and the control resource set group adopts RRC configuration. That is to say, the network device configures the corresponding relationship between the control resource set and the control resource set group for the terminal through RRC.
  • the second indication information is indicated by at least one of RRC and the first MAC CE.
  • the terminal can also determine the TCI status corresponding to the control resource set from N TCI statuses through default rules.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states;
  • the solution for the terminal to determine the TCI state of the control resource set includes any of the following:
  • Type 1 The TCI state corresponding to the control resource set defaults to at least one TCI state among N TCI states.
  • the terminal after the terminal determines the N TCI states indicated by the network device, the terminal can determine the TCI state corresponding to the control resource set according to the default rules, and the TCI state corresponding to the control resource set belongs to the N TCI states.
  • the terminal determines at least one TCI state among the N TCI states as the TCI state corresponding to the control resource set by default.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and TCI state #1 and TCI state #2 are determined as TCI states corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2, and TCI state #1 is determined as the TCI state corresponding to the control resource set.
  • the TCI state corresponding to the control resource set group corresponding to the control resource set defaults to at least one TCI state among the N TCI states.
  • N TCI states include TCI state #1, TCI state #2, TCI state #3 and TCI state #4.
  • TCI state #1 and TCI state #2 are determined as the TCI states corresponding to control resource set group #1.
  • the control resource set group corresponding to the control resource set is control resource set group #1, so the TCI states corresponding to the control resource set are TCI state #1 and TCI state #2.
  • TCI state #1 and TCI state #4 are determined as TCI states corresponding to the control resource set group corresponding to the control resource set.
  • the N TCI states include TCI state #1 and TCI state #2.
  • TCI state #1 is determined to be the TCI state corresponding to control resource set group #1, and the control resource set group corresponding to the control resource set is the control resource.
  • Set group #1 so the TCI state corresponding to this control resource set is TCI state #1.
  • the corresponding relationship between the control resource set and the control resource set group adopts RRC and/or MAC CE configuration. That is to say, the network device configures the corresponding relationship between the control resource set and the control resource set group for the terminal through RRC and/or MAC CE.
  • the network device configures N TCI states for the terminal, and the terminal determines the TCI state corresponding to the control resource set based on the configured N TCI states, which expands the way for the terminal to determine the TCI state corresponding to the control resource set. , thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, which improves the flexibility of transmitting the physical shared channel.
  • the embodiment of the present application only takes as an example that the terminal determines one or more TCI states corresponding to the control resource set based on the N TCI states configured by the network device.
  • the network device can directly configure one or more TCI states corresponding to the control resource set for the terminal, and there is no need to determine the TCI state corresponding to the control resource set based on N TCI states.
  • the network device sends a second MAC CE to the terminal.
  • the second MAC CE is used to indicate the TCI status corresponding to the control resource set.
  • the terminal receives the second MAC CE sent by the network device and can determine the second MAC CE.
  • the TCI state corresponding to the control resource set indicated by MAC CE, the subsequent terminal can determine at least one first TCI state based on the TCI state corresponding to the control resource set.
  • the embodiment shown in Figure 7 explains how the terminal determines the first TCI state.
  • the following describes how the terminal determines the first TCI state based on the N TCI states configured by the network device.
  • the network device sends third indication information to the terminal.
  • the third indication information is used to indicate N TCI states.
  • the TCI states include at least one of a joint TCI state, an uplink TCI state, and a downlink TCI state.
  • Control resources The TCI state corresponding to the set is a subset of N TCI states, and N is a positive integer. At least one first TCI state is determined based on N TCI states.
  • the network device can inform the terminal of N TCI states through indication information, and the subsequent terminal can determine at least one first TCI state corresponding to the physical shared channel based on the N TCI states, where N is a positive integer.
  • the TCI state includes at least one of the joint TCI state, the uplink TCI state and the downlink TCI state. That is to say, the N TCI states can include N joint TCI states, N uplink TCI states, N downlink TCI states, N Downlink TCI states and uplink TCI states, or may also include N other TCI states, which are not limited in the embodiment of this application.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS, and SRS. That is to say, the N TCI states in the embodiment of the present application can be used for the QCL indication of at least one channel and/or at least one signal.
  • the third indication information is carried in a third medium access control layer control element (Medium Access Control Element, MAC CE), and the third MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the third MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of DCI (Downlink Control Information, DCI). That is, only the third MAC CE is sent but not the DCI.
  • the N TCI states indicated in the third MAC CE only correspond to one code point of the TCI domain in the DCI. Therefore, the base station does not need to send additional DCI to the terminal to indicate code points, thus saving signaling overhead.
  • the first indication information is carried in the fourth MAC CE and the second DCI
  • the fourth MAC CE is used to indicate N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI
  • the second DCI is used to indicate one code point among at least two code points. That is, the fourth MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the fourth MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI.
  • the second DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the fourth MAC CE.
  • the fourth MAC CE can indicate multiple sets of code point configurations, and each set of code point configurations corresponds to N TCI states. It should be noted that each code point corresponds to N TCI states, and the N value corresponding to each code point can be the same or different.
  • the terminal may determine based on the N TCI states configured by the network device that the TCI state corresponding to the control resource set actually refers to multiplexing part or all of the N TCI states.
  • the N TCI states are called indicated TCI states, which are used to indicate that the N TCI states can be applied to multiple channels/signals and are not limited to a single channel/signal.
  • some or all of the N indicated TCI states can be used for the transmission of at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • the terminal can select at least one TCI state from the N TCI states to determine it as the first TCI state.
  • the terminal determines at least one TCI state among the N TCI states as at least one first TCI state by default.
  • the terminal determines at least one TCI state among N TCI states as at least one first TCI state by default.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and TCI state #1 and TCI state #2 are determined as the first TCI state.
  • TCI state #1 and TCI state #4 are determined as the first TCI state.
  • the N TCI states include TCI state #1 and TCI state #2, and TCI state #1 is determined as the first TCI state.
  • the terminal can default to the first TCI state That is, TCI state #1, or the second TCI state, namely TCI state #2, or two TCI states, namely TCI state #1 and TCI state #2, are determined to be the first TCI state.
  • the terminal can default to the first TCI state. That is, TCI state #1, or the second TCI state, namely TCI state #3, or two TCI states, namely TCI state #1 and TCI state #3, are determined to be the first TCI state.
  • the terminal determines at least one TCI state among the N TCI states indicated by the network device through the indication information as the first TCI state.
  • the network device sends fourth indication information to the terminal, the fourth indication information is used to indicate at least one TCI state among N TCI states, and the terminal receives the fourth indication information, and converts the N TCI states indicated by the fourth indication information. At least one TCI state among the states is determined to be at least a first TCI state.
  • the fourth indication information is used to indicate that the at least one first TCI state is at least one TCI state among the N TCI states.
  • the N TCI states include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and the fourth indication information may indicate that TCI state #1 and TCI state #2 are the first TCI state.
  • the fourth indication information may indicate that TCI state #1 and TCI state #4 are the first TCI state.
  • the N TCI states include TCI state #1 and TCI state #2, and the fourth indication information may indicate that TCI state #1 is the first TCI state.
  • the fourth indication information can indicate the first The TCI state is TCI state #1, or the second TCI state is TCI state #2, or the two TCI states, namely TCI state #1 and TCI state #2, is the first TCI state.
  • the fourth indication information can indicate the first The TCI state is TCI state #1, or the second TCI state is TCI state #3, or the two TCI states are TCI state #1 and TCI state #3, which is the first TCI state.
  • the fourth indication information is indicated by at least one of RRC, MAC CE and DCI.
  • the fourth indication information is indicated by RRC.
  • the fourth indication information is indicated through MAC CE.
  • the fourth indication information is indicated by DCI.
  • the fourth indication information may be indicated by DCI.
  • the DCI indicating the fourth indication information is DCI format 1_1 or DCI format 1_2.
  • the DCI indicating the fourth indication information is DCI format 0_1 or DCI format 0_2.
  • the DCI is used to indicate the fourth indication information of the first TCI state of the PDSCH. If the DCI is DCI format 0_1 or DCI format 0_2, then the DCI is used to indicate the fourth indication information of the first TCI state of PUSCH.
  • the DCI indicating the fourth indication information may include transmission resource configuration (DL assignment, or UL assignment), that is, time domain resources, frequency domain resources, modulation and coding scheme MCS, etc. used to indicate PDSCH or PUSCH. etc.;
  • the DCI may not include transmission resource configuration, that is, it may not include time domain resources, frequency domain resources, modulation and coding scheme MCS, etc. of PDSCH or PUSCH.
  • the transmission resource configuration includes at least one of time domain resources, frequency domain resources and MCS.
  • the terminal determines at least one first TCI state for the physical shared channel based on the N TCI states configured by the network device, thereby ensuring that the physical shared channel is transmitted based on the determined TCI state, and improving the transmission physical sharing. Channel flexibility.
  • any one can be used among the first MAC CE, the second MAC CE, the third MAC CE and the fourth MAC CE, the MAC CE carrying the second indication information and the MAC CE carrying the fourth indication information.
  • Two or more MAC CEs are different MAC CEs, or they are the same MAC CE.
  • any two or more DCIs may be different DCIs, or they may be the same DCI.
  • the RRC carrying the second indication information and the RRC carrying the fourth indication information in this application may be different RRCs or the same RRC.
  • FIG. 8 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 801 is configured to receive the first DCI sent by the network device, where the first DCI is used to indicate the transmission resources of the physical shared channel;
  • the processing module 802 is configured to determine at least one first TCI state corresponding to the physical shared channel.
  • the processing module 802 is further configured to determine the at least one first TCI state based on the TCI state corresponding to the control resource set.
  • control resource set is a control resource set used to send the first DCI, or the control resource set is CORESET#0.
  • processing module 802 is also used to:
  • the at least one first TCI state is a TCI state corresponding to the control resource set
  • the at least one first TCI state is one TCI state among the multiple TCI states corresponding to the control resource set;
  • the at least one first TCI state is the multiple TCI states corresponding to the control resource set.
  • the receiving module 801 is also used to receive the first indication information sent by the network device.
  • the first indication information is used to indicate N TCI states.
  • the TCI states include joint TCI states, At least one of an uplink TCI state and a downlink TCI state, the TCI state corresponding to the control resource set is a subset of the N TCI states, and N is a positive integer.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states; the receiving module 801 is also configured to receive the second indication information sent by the network device;
  • the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states;
  • the second indication information is used to indicate that the control resource set group corresponding to the control resource set corresponds to at least one TCI state among the N TCI states.
  • the second indication information is indicated by at least one of RRC and the first MAC CE.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states; the processing module 802 is also used to:
  • At least one TCI state among the N TCI states is determined as the TCI state corresponding to the control resource set;
  • At least one TCI state among the N TCI states is determined as the TCI state corresponding to the control resource set group corresponding to the control resource set.
  • the receiving module 801 is also configured to receive a second MAC CE sent by the network device, where the second MAC CE is used to indicate the TCI status corresponding to the control resource set.
  • the receiving module 801 is also configured to receive third indication information sent by the network device, where the third indication information is used to indicate N TCI states, where the TCI states include joint TCI states, At least one of the uplink TCI state and the downlink TCI state;
  • the processing module 802 is also configured to determine the at least one first TCI state based on the N TCI states.
  • the processing module 802 is also configured to determine at least one TCI state among the N TCI states as the at least one first TCI state by default.
  • the receiving module 801 is further configured to receive fourth indication information sent by the network device, where the fourth indication information is used to indicate at least one TCI state among the N TCI states;
  • the processing module 802 is further configured to determine at least one TCI state among the N TCI states indicated by the fourth indication information as the at least one first TCI state.
  • the fourth indication information is indicated by at least one of RRC, MAC CE and DCI.
  • the fourth indication information is indicated by the DCI, and the DCI is DCI format 1_1 or DCI format 1_2;
  • the DCI is DCI format 0_1 or DCI format 0_2.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • the first indication information and/or the third indication information is carried in the third MAC CE, and the third MAC CE is used to indicate the N TCI states; or,
  • the first indication information and/or the third indication information is carried in the fourth MAC CE and the second DCI.
  • the fourth MAC CE is used to indicate the transmission configuration of the second DCI and indicates that at least two code points in the TCI domain respectively correspond to N TCI states, the second DCI is used to indicate one code point among the at least two code points.
  • the first DCI is not used to indicate the at least one first TCI status.
  • the physical shared channel includes at least one of PDSCH and PUSCH.
  • the physical shared channel is PDSCH
  • the first DCI is DCI format1_0; and/or,
  • the physical shared channel is PUSCH, and the first DCI is DCI format 0_0.
  • FIG. 9 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 901 is configured to send a first DCI to the terminal, where the first DCI is used to indicate the transmission resource of the physical shared channel, and the terminal is used to determine at least one first TCI state corresponding to the physical shared channel.
  • the at least one first TCI state is determined based on a TCI state corresponding to the control resource set.
  • control resource set is a control resource set used to send the first DCI, or the control resource set is CORESET#0.
  • the at least one first TCI state is a TCI state corresponding to the control resource set
  • the at least one first TCI state is one TCI state among the multiple TCI states corresponding to the control resource set;
  • the at least one first TCI state is the multiple TCI states corresponding to the control resource set.
  • the sending module 901 is further configured to send first indication information to the terminal, where the first indication information is used to indicate N TCI states, where the TCI states include joint TCI states, uplink TCI At least one of the state and the downlink TCI state, the TCI state corresponding to the control resource set is a subset of the N TCI states, and N is a positive integer.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states; the sending module 901 is also configured to send second indication information to the terminal;
  • the second indication information is used to indicate that the control resource set corresponds to at least one TCI state among the N TCI states;
  • the second indication information is used to indicate that the control resource set group corresponding to the control resource set corresponds to at least one TCI state among the N TCI states.
  • the second indication information is indicated by at least one of RRC and the first MAC CE.
  • the N TCI states include multiple joint TCI states and/or downlink TCI states;
  • the TCI state corresponding to the control resource set defaults to at least one TCI state among the N TCI states;
  • the TCI state corresponding to the control resource set group corresponding to the control resource set defaults to at least one TCI state among the N TCI states.
  • the sending module is further configured to send a second MAC CE to the terminal, where the second MAC CE is used to indicate the TCI status corresponding to the control resource set.
  • the sending module 901 is also configured to send third indication information to the terminal.
  • the third indication information is used to indicate N TCI states.
  • the TCI states include joint TCI states, uplink TCI states, and N TCI states. At least one of the TCI state and the downlink TCI state;
  • the at least one first TCI state is determined based on the N TCI states.
  • the at least one first TCI state defaults to at least one TCI state among the N TCI states.
  • the sending module 901 is further configured to send fourth indication information to the terminal, where the fourth indication information is used to indicate at least one TCI state among the N TCI states;
  • the at least one first TCI state is at least one TCI state among the N TCI states indicated by the fourth indication information.
  • the fourth indication information is indicated by at least one of RRC, MAC CE and DCI.
  • the fourth indication information is indicated by the DCI, and the DCI is DCI format 1_1 or DCI format 1_2;
  • the DCI is DCI format 0_1 or DCI format 0_2.
  • the N TCI states include QCL indications for at least one of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.
  • the first indication information and/or the third indication information is carried in the third MAC CE, and the third MAC CE is used to indicate the N TCI states; or,
  • the first indication information and/or the third indication information is carried in the fourth MAC CE and the second DCI.
  • the fourth MAC CE is used to indicate the transmission configuration of the second DCI and indicates that at least two code points in the TCI domain respectively correspond to N TCI states, the second DCI is used to indicate one code point among the at least two code points.
  • the first DCI is not used to indicate the at least one first TCI status.
  • the physical shared channel includes at least one of PDSCH and PUSCH.
  • the physical shared channel is PDSCH, and the first DCI is DCI format 1_0; and/or, the physical shared channel is PUSCH, and the first DCI is DCI format 0_0.
  • Figure 10 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • the communication device includes: a processor 1001, a receiver 1002, a transmitter 1003, a memory 1004 and a bus 1005.
  • the processor 1001 includes one or more processing cores.
  • the processor 1001 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1002 and the transmitter 1003 can be implemented as a communication component, and the communication component can be a communication chip.
  • the memory 1004 is connected to the processor 1001 through a bus 1005.
  • the memory 1004 can be used to store at least one program code, and the processor 1001 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 communication system in an exemplary embodiment, includes a terminal and a network device.
  • the terminal is used to implement the TCI status determination method as described above.
  • the network device is used to implement the method as described above. The TCI status determination method described above.
  • 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第一下行控制信息DCI，所述第一DCI用于指示物理共享信道的传输资源；确定所述物理共享信道对应的至少一个第一TCI状态。本申请提供了一种根据DCI确定该DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的TCI状态的方案，保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。

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
在移动通信系统中提供了一种网络设备与终端之间通过波束进行数据传输，而波束的指示方式具体通过TCI(Transmission Configuration Indication，传输配置指示)state(状态)来指示不同信道对应的QCL(Quasi Co-Location，准共址)参数。
目前提出一种unified(统一)TCI state，该unified TCI state目前包括上行传输和下行传输分开指示，即包括下行TCI state和上行TCI state，或者上下行联合指示joint TCI state。即网络设备如果指示一个用于下行传输的下行TCI state，那么该下行TCI state可以用于终端的PDSCH(Physical Downlink Shared Channel，物理下行共享信道)和PDCCH(Physical Downlink Control Channel，物理下行控制信道)，以及一部分CSI-RS(Channel State Information Reference Signal，信道状态信息参考信号)；网络设备如果指示一个用于上行传输的上行TCI state，那么该上行TCI state可以用于终端的PUSCH(Physical Uplink Shared Channel，物理上行共享信道)和PUCCH(Physical Uplink Control Channel，物理上行控制信道)，以及一部分SRS(Sounding Reference Signal，探测参考信号)。网络设备如果指示一个joint TCI state，则该joint TCI state可以同时用于上行传输和下行传输。
但是，当DCI(Downlink Control Information，下行控制信息)不包含TCI指示域时，网络设备如何为终端指示该DCI调度的物理共享信道对应的TCI状态成为亟需解决的问题。
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，保证 基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。所述技术方案如下：
根据本申请的第一方面，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第一下行控制信息DCI，所述第一DCI用于指示物理共享信道的传输资源；
确定所述物理共享信道对应的至少一个第一TCI状态。
根据本申请的第二方面，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：
向终端发送第一DCI，所述第一DCI用于指示物理共享信道的传输资源，所述终端用于确定所述物理共享信道对应的至少一个第一TCI状态。
根据本申请的第三方面，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第一下行控制信息DCI，所述第一DCI用于指示物理共享信道的传输资源；
确定模块，用于确定所述物理共享信道对应的至少一个第一TCI状态。
根据本申请的第四方面，提供了一种TCI状态确定装置，所述装置包括：
发送模块，用于向终端发送第一DCI，所述第一DCI用于指示物理共享信道的传输资源，所述终端用于确定所述物理共享信道对应的至少一个第一TCI状态。
根据本申请的第五方面，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。
根据本申请的第六方面，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。
根据本申请的第七方面，提供了一种通信系统，所述通信系统包括终端和网络设备，所述终端用于实现如上述第一方面所述的TCI状态确定方法，所述网络设备用于实现如上述第二方面所述的TCI状态确定方法。
根据本申请的第八方面，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。
根据本申请的第九方面，提供了一种芯片，芯片包括可编程逻辑电路和/或程序指令，当芯片在终端或网络设备上运行时，用于实现如上述方面的TCI状态确定方法。
根据本申请的第十方面，提供了一种计算机程序产品，当计算机程序产品被终端或网络设备的处理器执行时，其用于实现上述方面的TCI状态确定方法。
本申请提供了一种根据DCI确定该DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的TCI状态的方案，保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
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状态指示方法的流程图；
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TCI状态确定方法的流程图；
图7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8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9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10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。
首先，对本申请所涉及的名词进行说明。
TCI状态(state)：该TCI状态用于指示QCL参数，也就是说本申请中的终端和网络设备会基于TCI状态指示的QCL参数进行数据传输。其中QCL type D对应Rx spatial parameter(空间参数)、UL spatial filter(上行空间滤波器)、spatial setting(空间设置)、spatial relation information(空间关系信息)等中的至少一项。QCL Type D俗称为波束。TCI状态还用于指示上行信道/上行信号相关的路径损耗参考信号和/或功率控制参数信息。
其中，若通信频段在frequency range 2(频率范围2)时，高频信道衰减快，因此采用基于波束的方式进行数据传输。
具体的，网络设备与终端之间存在信道和/或参考信号。其中，信道包括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)、PUSCH(Physical Uplink Shared Channel，物理上行共享信道)或PUCCH(Physical Uplink Control Channel，物理上行控制信道)中的至少一项。参考信号包括DMRS(Demodulation Reference signal，解调参考信号)、CSI-RS(Channel State Information Reference  Signal，信道状态信息参考信号)、SRS(Sounding Reference Signal，探测参考信号)、PRS(Positioning Reference Signal，定位参考信号)或TRS(Tracking Reference Signal，跟踪参考信号)中的至少一项。CSI-RS包括用于信道状态信息测量的CSI-RS、用于波束测量的CSI-RS或用于路径损耗估计的CSI-RS中的至少一种。SRS包括用于基于码本或基于非码本的信道状态信息测量的SRS、用于波束测量的SRS或用于定位测量的SRS中的至少一种。上述参考信号的TCI状态独立指示。而PDCCH和PUCCH使用MAC CE分别激活各自的TCI状态。PDSCH和PUSCH使用DCI信令分别指示各自的TCI状态。
另外，本申请提出通过统一TCI状态指示至少一项信道和/或信号的TCI状态。该unified TCI state目前包括上行传输和下行传输分开指示，即包括下行TCI state和上行TCI state，或者上下行联合指示joint TCI state。即网络设备如果指示一个用于下行传输的下行TCI state，那么该下行TCI state可以用于终端的PDSCH和PDCCH，以及一部分CSI-RS；网络设备如果指示一个用于上行传输的上行TCI state，那么该上行TCI state可以用于终端的PUSCH和PUCCH，以及一部分SRS。网络设备如果指示一个joint TCIstate，则该joint TCI state可以同时用于上行传输和下行传输。
若网络设备指示了多个TCI state，每个TCI state可以是joint TCI state，DL TCI state或UL TCI state。那么每个物理共享信道，比如PDSCH到底采用这多个TCI state中的哪一个或多个，比如PUSCH到底采用这多个TCI state中的哪一个或多个，也是需要指示的。在一些实施例中，提出采用DCI来指示物理共享信道使用的TCI state，其中可以通过在DCI已有的指示域或引入新的指示域来指示物理信道使用的TCI state。
可选地，该DCI包括下行DCI，该下行DCI包括DCI format 1_1或DCI format 1_2，可以采用下行DCI中已有的指示域或引入新的指示域来指示PDSCH使用的TCI state。
可选地，该DCI还包括上行DCI，该上行DCI包括format 0_1或DCI format 0_2，可以采用上行DCI中已有的指示域或引入新的指示域来指示PUSCH使用的TCI state。
可选地，该DCI还包括DCI format 1_0和DCI format 0_0，DCI format 1_0为下行DCI，可以用于调度PDSCH，DCI format 0_0为上行DCI，可以用于调度PUSCH，由于DCI format 1_0和DCI format 0_0均为回退DCI，所以无法使 用DCI format 1_0和DCI format 0_0中已有的指示域或引入新的指示域来指示PDSCH或PUSCH使用的TCI state，因此本申请提供了一种为该DCI调度的物理共享信道的传输确定TCI state的方法。
其次，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之间进行波束报告发送，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，新空口)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。
可选地，网络设备20上设置有至少两个TRP(Transmission Reception Point,传输接收节点)；或者至少两个网络设备20，每个网络设备上设置至少一个TRP，即至少两个网络设备20设置有至少两个TRP。也就是说，至少两个TRP可以来自同一个小区或不同的小区。
在一些实施例中，参见图2，网络设备20上设置4个TRP，并且可以通过4个TRP为终端10提供服务，则终端10可以基于4个TRP进行数据传输。
其中，网络设备20与终端10之间通过多个TRP进行数据传输时，称为M-TRP传输，而网络设备20与终端10之间通过单个TRP进行数据传输时，称 为S-TRP传输。
在M-TRP的情况下，若通过TCI状态指示信息指示了多套TCI状态时，仍需要实现PDSCH或PUSCH的M-TRP以及S-TRP的动态切换，因此提出一种在DCI中引入新的指示域来指示PDSCH使用的TCI状态为TCI域指示的一个或多个TCI状态。
本申请实施例中的“5G NR系统”也可以称为5G系统或者NR系统，但本领域技术人员可以理解其含义。本申请实施例描述的技术方案可以适用于5G NR系统，也可以适用于5G NR系统后续的演进系统。
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第一DCI，第一DCI用于指示物理共享信道的传输资源。
步骤302：终端接收网络设备发送的第一DCI，第一DCI用于指示物理共享信道的传输资源。
其中，该第一DCI用于指示物理共享信道的传输资源，也就是说该第一DCI用于调度物理共享信道，进而网络设备与终端之间可以基于该物理共享信道进行数据传输。该传输资源是指网络设备与终端之间通过该物理共享信道传输数据时所占用的资源。
在一些实施例中，该传输资源包括时域资源、频域资源和其他资源的至少一项，本申请实施例不做限定。
在一些实施例中，该物理共享信道包括PDSCH和PUSCH中的至少一项。
对于用于指示物理共享信道的第一DCI来说，物理共享信道不同，该第一DCI也不同。
可选地，若该物理共享信道为PDSCH，则该第一DCI为DCI format 1_0，而若该物理共享信道为PUSCH，则该第一DCI为DCI format 0_0。
步骤303：终端确定物理共享信道对应的至少一个第一TCI状态。
在本申请实施例中，终端根据第一DCI确定该第一DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的至少一个第一TCI状态，以便于终端与网络设备之间基于已确定的至少一个第一TCI状态进行数据传输。
需要说明的是，本申请实施例是以终端确定物理共享信道对应的至少一个第一TCI状态进行说明。用于指示物理共享信道的传输资源的第一DCI并不用于指示至少一个第一TCI状态，也就是说，第一DCI的作用仅用于指示传输资源，而不用于指示TCI状态。
需要说明的是，本申请实施例中终端所执行的步骤可以单独形成一个新的实施例，网络设备所执行的步骤可以单独形成一个新的实施例，本申请实施例不作限定。
本申请提供了一种根据DCI确定该DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的TCI状态的方案，保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
图3所示实施例对终端确定第一TCI状态进行说明。下面对终端如何根据控制资源集确定第一TCI状态进行说明。
在一些实施例中，控制资源集对应有TCI状态，终端基于控制资源集对应的TCI状态确定至少一个第一TCI状态。
在本申请实施例中，控制资源集与TCI状态具有对应关系，终端可以基于控制资源集确定该控制资源集对应的TCI状态，进而从控制资源集对应的TCI状态中确定至少一个第一TCI状态。
在一些实施例中，该控制资源集包括不同用途的控制资源集。例如，该控制资源集为用于发送第一DCI的控制资源集，或者，该控制资源集为CORESET#0。
也就是说，终端可以根据用于发送第一DCI的控制资源集对应的TCI状态确定至少一个第一TCI状态。或者，终端也可以根据CORESET#0对应的TCI状态确定指示一个第一TCI状态。
需要说明的是，本申请实施例中的CORESET#0也可以是用于发送第一DCI的CORESET，或者，CORESET#0也可以不是用于发送第一DCI的CORESET，本申请实施例不做限定。
本申请实施例对终端可以基于控制资源集对应的TCI状态确定至少一个第一TCI状态进行说明。而对于控制资源集对应的TCI状态来说，该控制资源集对应的TCI状态的数量可能不同，下面对终端如何确定基于控制资源集对应的TCI状态进行说明。
在一些实施例中，终端基于控制资源集对应的TCI状态确定至少一个第一TCI状态的方式包括以下任一种：
(1)在控制资源集对应一个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的一个TCI状态。
在本申请实施例中，控制资源集对应一个TCI状态，则终端直接将这一个TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应一个TCI状态，则终端直接将该TCI状态确定为第一TCI状态。又例如，CORESET#0对应一个TCI状态，则终端直接将该TCI状态确定为第一TCI状态。
(2)在控制资源集对应多个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的多个TCI状态中的一个TCI状态。
在本申请实施例中，控制资源集对应多个TCI状态，则终端可以从多个TCI状态中选择一个TCI状态确定为第一TCI状态。也就是说，终端可以根据默认规则从多个TCI状态中选择一个TCI状态，进而将选择的TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应多个TCI状态，则终端可以从该用于发送第一DCI的控制资源集对应的多个TCI状态中，选择一个TCI状态确定为第一TCI状态。又例如，CORESET#0对应多个TCI状态，则终端可以从该CORESET#0对应的多个TCI状态中选择一个TCI状态确定为第一TCI状态。
可选地，若控制资源集对应的多个TCI状态包括TCI状态#1和TCI状态#2，则终端可以将第一个TCI状态(TCI状态#1)确定为第一TCI状态，或者，终端可以将第二个TCI状态(TCI状态#2)确定为第一TCI状态。
(3)在控制资源集对应多个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的多个TCI状态。
在本申请实施例中，控制资源集对应多个TCI状态，则终端可以将多个TCI状态都确定为第一TCI状态。也就是说，终端可以将控制资源集对应的多个TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应多个TCI状态，则终端可以将用于发送第一DCI的控制资源集对应的多个TCI状态确定为第一TCI状态。又例如，CORESET#0对应多个TCI状态，则终端可以将该CORESET#0对应的 多个TCI状态确定为第一TCI状态。
可选地，若控制资源集对应的多个TCI状态包括TCI状态#1和TCI状态#2，则终端可以将第一个TCI状态(TCI状态#1)和第二个TCI状态(TCI状态#2)均确定为第一TCI状态。
需要说明的是，本申请实施例是以TCI状态为例进行说明。而在另一实施例中，当物理共享信道为PDSCH时，基于控制资源集确定的TCI状态包括联合TCI状态和/或下行TCI状态，也就是说终端可以根据控制资源集对应的联合TCI状态和/或下行TCI状态，确定物理共享信道对应的TCI状态。而在另一实施例中，当物理共享信道为PUSCH时，基于控制资源集确定的TCI状态包括联合TCI状态和/或上行TCI状态，也就是说终端可以根据控制资源集对应的联合TCI状态和/或上行TCI状态，确定物理共享信道对应的TCI状态。
本申请实施例提供的方案中，终端可以基于控制资源集对应的TCI状态确定物理共享信道对应的TCI状态，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
上述实施例对终端如何根据控制资源集对应的TCI状态确定第一TCI状态进行说明。下面，将对终端如何确定控制资源集对应的TCI状态进行说明。图4示出了本申请一个示例性实施例提供的TCI状态指示方法的流程图，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401：网络设备向终端发送第一指示信息，第一指示信息用于指示N个TCI状态，每个TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，控制资源集对应的TCI状态为N个TCI状态的子集，N为正整数。
步骤402：终端接收网络设备发送的第一指示信息。
在本申请实施例中，网络设备可以通过指示信息告知终端N个TCI状态，后续终端可以基于N个TCI状态确定控制资源集对应的TCI状态，N为正整数。
其中，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，也就是说N个TCI状态可以包括N个联合TCI状态，N个上行TCI状态，N个下行TCI状态，N个下行TCI状态和上行TCI状态，或者还可以包括N个其他TCI状态，本申请实施例不做限定。
在一些实施例中，N个TCI状态包括用于PDCCH、PDSCH、PUCCH、 PUSCH、CSI-RS和SRS中的至少一项的QCL指示。也就是说本申请实施例中的N个TCI状态可以用于上述至少一种信道和/或至少一种信号的QCL指示。
在一些实施例中，第一指示信息携带在第三媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第三MAC CE用于指示N个TCI状态。
可选地，第三MAC CE用于指示DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第三MAC CE但不发送DCI，该第三MAC CE中指示的N个TCI状态只对应DCI中的TCI域的一个码点，因此，不需要基站额外向终端发送DCI来指示码点，从而节省信令开销。
在一些实施例中，第一指示信息携带在第四MAC CE和第二DCI中，第四MAC CE用于指示第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示至少两个码点中的一个码点。也即，第四MAC CE和第二DCI同时用于指示第二指示信息，该第四MAC CE指示有第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示码点，进而通过查询第四MAC CE查询得到该码点对应的N个TCI状态。此时第四MAC CE可以指示多套码点配置，每套码点配置对应有N个TCI状态。需要注意的是，每个码点对应有N个TCI状态中，每个码点对应的N值可以相同或不同。
在一些实施例中，终端可以根据网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态实际上是指复用N个TCI状态中的一部分或全部TCI状态。
可选地，N个TCI状态称为indicated TCI状态，用于表示该N个TCI状态是可以应用于多个信道/信号，并不仅限于应用于单一的信道/信号。比如，该N个indicated TCI状态中的部分或全部TCI状态可以用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少两项的传输。
步骤403：网络设备向终端发送第二指示信息，该第二指示信息用于指示控制资源集对应N个TCI状态中的至少一个TCI状态，或者，第二指示信息用于指示控制资源集对应的控制资源集组对应N个TCI状态中的至少一个TCI状态。
其中，N个TCI状态包括多个联合TCI状态和/或下行TCI状态。
步骤404：终端接收网络设备发送的第二指示信息。
在本申请实施例中，终端确定网络设备指示的N个TCI状态后，网络设备 即可通过第二指示信息为终端的控制资源集配置对应的TCI状态，并且配置的控制资源集对应的TCI状态属于N个TCI状态。
该第二指示信息可以采用两种方式指示控制资源集对应的TCI状态。
其中，第二指示信息用于指示控制资源集对应N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，该第二指示信息可以指示TCI状态#1和TCI状态#2为控制资源集对应的TCI状态。或者，该第二指示信息可以指示TCI状态#1、TCI状态#4为控制资源集对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第二指示信息可以指示TCI状态#1为控制资源集对应的TCI状态。
或者，该第二指示信息用于指示控制资源集对应的控制资源集组对应N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，该第二指示信息可以指示TCI状态#1和TCI状态#2为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1和TCI状态#2。或者，该第二指示信息可以指示TCI状态#1和TCI状态#4为控制资源集对应的控制资源集组对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第二指示信息可以指示TCI状态#1为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1。
可选地，控制资源集与控制资源集组的对应关系采用RRC和/或MAC CE配置。也就是说，网络设备通过RRC和/或MAC CE为终端配置控制资源集与控制资源集组的对应关系。
在一些实施例中，该第二指示信息通过RRC和第一MAC CE中的至少一项来指示。
需要说明的是，本申请实施例仅是以步骤403-404为例进行说明。而在另一实施例中，还可以不执行步骤403-404，终端通过默认规则即可从N个TCI状态中确定控制资源集对应的TCI状态。
在本申请实施例中，N个TCI状态包括多个联合TCI状态和/或下行TCI状态；终端确定控制资源集的TCI状态的方案包括以下任一种：
第一种：默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的TCI状态。
在本申请实施例中，终端确定网络设备指示的N个TCI状态后，终端即可根据默认规则确定控制资源集对应的TCI状态，并且控制资源集对应的TCI状态属于N个TCI状态。
其中，终端默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1和TCI状态#2确定为控制资源集对应的TCI状态。或，将TCI状态#1和TCI状态#4确定为控制资源集对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为控制资源集对应的TCI状态。
第二种：默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的控制资源集组对应的TCI状态。
终端默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的控制资源集组对应的TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1、TCI状态#2确定为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1和TCI状态#2。或者，将TCI状态#1、TCI状态#4确定为控制资源集对应的控制资源集组对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1。
可选地，控制资源集与控制资源集组的对应关系采用RRC和/或MAC CE配置。也就是说，网络设备通过RRC和/或MAC CE为终端配置控制资源集与控制资源集组的对应关系。
本申请实施例提供的方案中，网络设备为终端配置N个TCI状态，终端再基于配置的N个TCI状态确定控制资源集对应的TCI状态，扩展了终端确定控制资源集对应的TCI状态的方式，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
需要说明的是，本申请实施例仅是以终端基于网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态为例进行说明。而在另一实施例中，网络设备可以直接为终端配置控制资源集对应的TCI状态，无需再基于N个TCI状态确定控制资源集对应的TCI状态。
在本申请实施例中，网络设备向终端发送第二MAC CE，该第二MAC CE用于指示控制资源集对应的一个或多个TCI状态，终端接收网络设备发送的第二MAC CE，即可确定该第二MAC CE指示的控制资源集对应的一个或多个TCI状态，后续终端即可根据控制资源集对应的TCI状态确定至少一个第一TCI状态。
图3所示实施例对终端确定第一TCI状态进行说明。下面对终端如何根据网络设备配置的N个TCI状态确定第一TCI状态进行说明。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501：网络设备向终端发送第三指示信息，第三指示信息用于指示N个TCI状态，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，控制资源集对应的TCI状态为N个TCI状态的子集，N为正整数。
步骤502：终端接收网络设备发送的第三指示信息。
在本申请实施例中，网络设备可以通过指示信息告知终端N个TCI状态，后续终端可以基于N个TCI状态确定物理共享信道对应的至少一个第一TCI状态，N为正整数。
其中，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，也就是说N个TCI状态可以包括N个联合TCI状态，N个上行TCI状态，N个下行TCI状态，N个下行TCI状态和上行TCI状态，或者还可以包括N个其他TCI状态，本申请实施例不做限定。
在一些实施例中，N个TCI状态包括用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少一项的QCL指示。也就是说本申请实施例中的N个TCI状态可以用于上述至少一种信道和/或至少一种信号的QCL指示。
在一些实施例中，第三指示信息携带在第三媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第三MAC CE用于指示N个TCI状态。
可选地，第三MAC CE用于指示DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第三MAC CE但不发送DCI，该第三MAC CE中指示的N个TCI状态只对应DCI中的TCI域的一个码点，因此，不需要基站额外向终端发送DCI来指示码点，从而节省信令 开销。
在一些实施例中，第一指示信息携带在第四MAC CE和第二DCI中，第四MAC CE用于指示第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示至少两个码点中的一个码点。也即，第四MAC CE和第二DCI同时用于指示第二指示信息，该第四MAC CE指示有第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示码点，进而通过查询第四MAC CE查询得到该码点对应的N个TCI状态。此时第四MAC CE可以指示多套码点配置，每套码点配置对应有N个TCI状态。需要注意的是，每个码点对应有N个TCI状态中，每个码点对应的N值可以相同或不同。
在一些实施例中，终端可以根据网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态实际上是指复用N个TCI状态中的一部分或全部TCI状态。
可选地，N个TCI状态称为indicated TCI状态，用于表示该N个TCI状态是可以应用于多个信道/信号，并不仅限于应用于单一的信道/信号。比如，该N个indicated TCI状态中的部分或全部TCI状态可以用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少两项的传输。
步骤503：终端基于N个TCI状态确定至少一个第一TCI状态。
在本申请实施例中，终端确定网络设备配置的N个TCI状态，则终端可以从N个TCI状态中选择至少一个TCI状态确定为第一TCI状态。
在一些实施例中，终端默认将N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。
在本申请实施例中，终端默认将N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1和TCI状态#2确定为第一TCI状态。或者，将TCI状态#1、TCI状态#4确定为第一TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为第一TCI状态。
可选的，当物理共享信道为PDSCH时，N个TCI状态中其中为joint TCI状态或DL TCI状态的TCI状态包括TCI状态#1和TCI状态#2，那么终端可以默认将第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#2，或两个TCI状态即TCI状态#1和TCI状态#2，确定为第一TCI状态。
可选的，当物理共享信道为PUSCH时，N个TCI状态中其中为joint TCI状 态或UL TCI状态的TCI状态包括TCI状态#1和TCI状态#3，那么终端可以默认将第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#3，或两个TCI状态即TCI状态#1和TCI状态#3，确定为第一TCI状态。
在另一些实施例中，终端将网络设备通过指示信息指示的N个TCI状态中的至少一个TCI状态确定为第一TCI状态。
其中，网络设备向终端发送第四指示信息，该第四指示信息用于指示N个TCI状态中的至少一个TCI状态，终端接收该第四指示信息，将该第四指示信息指示的N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。
其中，第四指示信息用于指示至少一个第一TCI状态为N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，该第四指示信息可以指示TCI状态#1和TCI状态#2为第一TCI状态。或者，该第四指示信息可以指示TCI状态#1和TCI状态#4为第一TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第四指示信息可以指示TCI状态#1为第一TCI状态。
可选的，当物理共享信道为PDSCH时，N个TCI状态中其中为joint TCI状态或DL TCI状态的TCI状态包括TCI状态#1和TCI状态#2，那么第四指示信息可以指示第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#2，或两个TCI状态即TCI状态#1和TCI状态#2，为第一TCI状态。
可选的，当物理共享信道为PUSCH时，N个TCI状态中其中为joint TCI状态或UL TCI状态的TCI状态包括TCI状态#1和TCI状态#3，那么第四指示信息可以指示第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#3，或两个TCI状态即TCI状态#1和TCI状态#3，为第一TCI状态。
可选地，该第四指示信息通过RRC、MAC CE和DCI中的至少一项来指示。例如，该第四指示信息通过RRC来指示。或者，该第四指示信息通过MAC CE来指示。或者，该第四指示信息通过DCI来指示。
在一些实施例中，该第四指示信息可以通过DCI来指示。
可选地，指示第四指示信息的该DCI为DCI format 1_1或DCI format 1_2。或者，该DCI为DCI format 0_1或DCI format 0_2。
例如，若该DCI为DCI format 1_1或DCI format 1_2，则该DCI用于指示PDSCH的第一TCI状态的第四指示信息。若该DCI为DCI format 0_1或DCI format 0_2，则该DCI用于指示PUSCH的第一TCI状态的第四指示信息。
在一些实施例中，指示第四指示信息的该DCI中可以包括传输资源配置(DL assignment，或UL assignment)，即用于指示PDSCH或PUSCH的时域资源、频域资源、调制编码方式MCS等等；或者，该DCI中还可以不包括传输资源配置，即不包含PDSCH或PUSCH的时域资源、频域资源、调制编码方式MCS等等。
本申请实施例提供的方案中，终端根据网络设备配置的N个TCI状态确定用于物理共享信道的至少一个第一TCI状态，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
需要说明的是，本申请中的第一MAC CE，第二MAC CE，第三MAC CE和，第四MAC CE，承载第二指示信息的MAC CE和第四指示信息的MAC CE中，可以任意两个或多个MAC CE为不同的MAC CE，或为相同的MAC CE。同样，本申请中的第一DCI，第二DCI，和承载第四指示信息的DCI中，可以任意两个或多个DCI为不同的DCI，或为相同的DCI。以及，本申请中的承载第二指示信息的RRC和承载第四指示信息的RRC可以为不同的RRC，或为相同的RRC。
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6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601：终端接收网络设备发送的第一DCI，第一DCI用于指示物理共享信道的传输资源。
其中，该第一DCI用于指示物理共享信道的传输资源，也就是说该第一DCI用于调度物理共享信道，进而网络设备与终端之间可以基于该物理共享信道进行数据传输。该传输资源是指网络设备与终端之间通过该物理共享信道传输数据时所占用的资源。
在一些实施例中，该传输资源包括时域资源、频域资源和其他资源的至少一项，本申请实施例不做限定。
在一些实施例中，该物理共享信道包括PDSCH和PUSCH中的至少一项。
对于用于指示物理共享信道的第一DCI来说，物理共享信道不同，该第一DCI也不同。
可选地，若该物理共享信道为PDSCH，则该第一DCI为DCI format 1_0，而若该物理共享信道为PUSCH，则该第一DCI为DCI format 0_0。
步骤602：终端确定物理共享信道对应的至少一个第一TCI状态。
在本申请实施例中，终端根据第一DCI确定该第一DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的至少一个第一TCI状态，以便于终端与网络设备之间基于已确定的至少一个第一TCI状态进行数据传输。
需要说明的是，本申请实施例是以终端确定物理共享信道对应的至少一个第一TCI状态进行说明。用于指示物理共享信道的传输资源的第一DCI并不用于指示至少一个第一TCI状态，也就是说，第一DCI的作用仅用于指示传输资源，而不用于指示TCI状态。
本申请提供了一种根据DCI确定该DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的TCI状态的方案，保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
图6所示实施例对终端确定第一TCI状态进行说明。下面对终端如何根据控制资源集确定第一TCI状态进行说明。
在一些实施例中，控制资源集对应有TCI状态，终端基于控制资源集对应的TCI状态确定至少一个第一TCI状态。
在本申请实施例中，控制资源集与TCI状态具有对应关系，终端可以基于控制资源集确定该控制资源集对应的TCI状态，进而从控制资源集对应的TCI状态中确定至少一个第一TCI状态。
在一些实施例中，该控制资源集包括不同用途的控制资源集。例如，该控制资源集为用于发送第一DCI的控制资源集，或者，该控制资源集为CORESET#0。
也就是说，终端可以根据用于发送第一DCI的控制资源集对应的TCI状态确定至少一个第一TCI状态。或者，终端也可以根据CORESET#0对应的TCI状态确定指示一个第一TCI状态。
需要说明的是，本申请实施例中的CORESET#0也可以是用于发送第一DCI的CORESET，或者，CORESET#0也可以不是用于发送第一DCI的CORESET，本申请实施例不做限定。
本申请实施例对终端可以基于控制资源集对应的TCI状态确定至少一个第一TCI状态进行说明。而对于控制资源集对应的TCI状态来说，该控制资源集对应的TCI状态的数量可能不同，下面对终端如何确定基于控制资源集对应的TCI状态进行说明。
在一些实施例中，终端基于控制资源集对应的TCI状态确定至少一个第一TCI状态的方式包括以下任一种：
(1)在控制资源集对应一个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的一个TCI状态。
在本申请实施例中，控制资源集对应一个TCI状态，则终端直接将这一个TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应一个TCI状态，则终端直接将该TCI状态确定为第一TCI状态。又例如，CORESET#0对应一个TCI状态，则终端直接将该TCI状态确定为第一TCI状态。
(2)在控制资源集对应多个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的多个TCI状态中的一个TCI状态。
在本申请实施例中，控制资源集对应多个TCI状态，则终端可以从多个TCI状态中选择一个TCI状态确定为第一TCI状态。也就是说，终端可以根据默认规则从多个TCI状态中选择一个TCI状态，进而将选择的TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应多个TCI状态，则终端可以从该用于发送第一DCI的控制资源集对应的多个TCI状态中，选择一个TCI状态确定为第一TCI状态。又例如，CORESET#0对应多个TCI状态，则终端可以从该CORESET#0对应的多个TCI状态中选择一个TCI状态确定为第一TCI状态。
可选地，若控制资源集对应的多个TCI状态包括TCI状态#1和TCI状态#2，则终端可以将第一个TCI状态(TCI状态#1)确定为第一TCI状态，或者，终端可以将第二个TCI状态(TCI状态#2)确定为第一TCI状态。
(3)在控制资源集对应多个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的多个TCI状态。
在本申请实施例中，控制资源集对应多个TCI状态，则终端可以将多个TCI状态都确定为第一TCI状态。也就是说，终端可以将控制资源集对应的多个TCI 状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应多个TCI状态，则终端可以将用于发送第一DCI的控制资源集对应的多个TCI状态确定为第一TCI状态。又例如，CORESET#0对应多个TCI状态，则终端可以将该CORESET#0对应的多个TCI状态确定为第一TCI状态。
可选地，若控制资源集对应的多个TCI状态包括TCI状态#1和TCI状态#2，则终端可以将第一个TCI状态(TCI状态#1)和第二个TCI状态(TCI状态#2)均确定为第一TCI状态。
需要说明的是，本申请实施例是以TCI状态为例进行说明。而在另一实施例中，当物理共享信道为PDSCH时，基于控制资源集确定的TCI状态包括联合TCI状态和/或下行TCI状态，也就是说终端可以根据控制资源集对应的联合TCI状态和/或下行TCI状态，确定物理共享信道对应的TCI状态。而在另一实施例中，当物理共享信道为PUSCH时，基于控制资源集确定的TCI状态包括联合TCI状态和/或上行TCI状态，也就是说终端可以根据控制资源集对应的联合TCI状态和/或上行TCI状态，确定物理共享信道对应的TCI状态。
本申请实施例提供的方案中，终端可以基于控制资源集对应的TCI状态确定物理共享信道对应的TCI状态，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
上述实施例对终端如何根据控制资源集对应的TCI状态确定第一TCI状态进行说明。下面，将对终端如何确定控制资源集对应的TCI状态进行说明。
在一些实施例中，终端接收网络设备发送的第一指示信息，第一指示信息用于指示N个TCI状态，每个TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，控制资源集对应的TCI状态为N个TCI状态的子集，N为正整数。
在本申请实施例中，网络设备可以通过指示信息告知终端N个TCI状态，后续终端可以基于N个TCI状态确定控制资源集对应的TCI状态，N为正整数。
其中，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，也就是说N个TCI状态可以包括N个联合TCI状态，N个上行TCI状态，N个下行TCI状态，N个下行TCI状态和上行TCI状态，或者还可以包括N个其他TCI状态，本申请实施例不做限定。
在一些实施例中，N个TCI状态包括用于PDCCH、PDSCH、PUCCH、 PUSCH、CSI-RS和SRS中的至少一项的QCL指示。也就是说本申请实施例中的N个TCI状态可以用于上述至少一种信道和/或至少一种信号的QCL指示。
在一些实施例中，第一指示信息携带在第三媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第三MAC CE用于指示N个TCI状态。
可选地，第三MAC CE用于指示DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第三MAC CE但不发送DCI，该第三MAC CE中指示的N个TCI状态只对应DCI中的TCI域的一个码点，因此，不需要基站额外向终端发送DCI来指示码点，从而节省信令开销。
在一些实施例中，第一指示信息携带在第四MAC CE和第二DCI中，第四MAC CE用于指示第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示至少两个码点中的一个码点。也即，第四MAC CE和第二DCI同时用于指示第二指示信息，该第四MAC CE指示有第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示码点，进而通过查询第四MAC CE查询得到该码点对应的N个TCI状态。此时第四MAC CE可以指示多套码点配置，每套码点配置对应有N个TCI状态。需要注意的是，每个码点对应有N个TCI状态中，每个码点对应的N值可以相同或不同。
在一些实施例中，终端可以根据网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态实际上是指复用N个TCI状态中的一部分或全部TCI状态。
可选地，N个TCI状态称为indicated TCI状态，用于表示该N个TCI状态是可以应用于多个信道/信号，并不仅限于应用于单一的信道/信号。比如，该N个indicated TCI状态中的部分或全部TCI状态可以用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少两项的传输。
在一些实施例中，终端接收网络设备发送的第二指示信息，该第二指示信息用于指示控制资源集对应N个TCI状态中的至少一个TCI状态，或者，第二指示信息用于指示控制资源集对应的控制资源集组对应N个TCI状态中的至少一个TCI状态。
其中，N个TCI状态包括多个联合TCI状态和/或下行TCI状态。
在本申请实施例中，终端确定网络设备指示的N个TCI状态后，网络设备 即可通过第二指示信息为终端的控制资源集配置对应的TCI状态，并且配置的控制资源集对应的TCI状态属于N个TCI状态。
该第二指示信息可以采用两种方式指示控制资源集对应的TCI状态。
其中，第二指示信息用于指示控制资源集对应N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1和TCI状态#2、TCI状态#3和TCI状态#4，该第二指示信息可以指示TCI状态#1、TCI状态#2为控制资源集对应的TCI状态。或者，该第二指示信息可以指示TCI状态#1、TCI状态#4为控制资源集对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第二指示信息可以指示TCI状态#1为控制资源集对应的TCI状态。
或者，该第二指示信息用于指示控制资源集对应的控制资源集组对应N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，该第二指示信息可以指示TCI状态#1和TCI状态#2为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1和TCI状态#2。或者，该第二指示信息可以指示TCI状态#1和TCI状态#4为控制资源集对应的控制资源集组对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第二指示信息可以指示TCI状态#1为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1。
可选地，控制资源集与控制资源集组的对应关系采用RRC配置。也就是说，网络设备通过RRC为终端配置控制资源集与控制资源集组的对应关系。
在一些实施例中，该第二指示信息通过RRC和第一MAC CE中的至少一项来指示。
在另一实施例中，终端通过默认规则即可从N个TCI状态中确定控制资源集对应的TCI状态。
在本申请实施例中，N个TCI状态包括多个联合TCI状态和/或下行TCI状态；终端确定控制资源集的TCI状态的方案包括以下任一种：
第一种：默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的TCI状态。
在本申请实施例中，终端确定网络设备指示的N个TCI状态后，终端即可根据默认规则确定控制资源集对应的TCI状态，并且控制资源集对应的TCI状 态属于N个TCI状态。
其中，终端默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1和TCI状态#2确定为控制资源集对应的TCI状态。或，将TCI状态#1和TCI状态#4确定为控制资源集对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为控制资源集对应的TCI状态。
第二种：默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的控制资源集组对应的TCI状态。
终端默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的控制资源集组对应的TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1、TCI状态#2确定为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1和TCI状态#2。或者，将TCI状态#1、TCI状态#4确定为控制资源集对应的控制资源集组对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1。
可选地，控制资源集与控制资源集组的对应关系采用RRC和/或MAC CE配置。也就是说，网络设备通过RRC和/或MAC CE为终端配置控制资源集与控制资源集组的对应关系。
本申请实施例提供的方案中，网络设备为终端配置N个TCI状态，终端再基于配置的N个TCI状态确定控制资源集对应的TCI状态，扩展了终端确定控制资源集对应的TCI状态的方式，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
需要说明的是，本申请实施例仅是以终端基于网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态为例进行说明。而在另一实施例中，网络设备可以直接为终端配置控制资源集对应的TCI状态，无需再基于N个TCI状态确定控制资源集对应的TCI状态。
在本申请实施例中，网络设备向终端发送第二MAC CE，该第二MAC CE用于指示控制资源集对应的一个或多个TCI状态，终端接收网络设备发送的第 二MAC CE，即可确定该第二MAC CE指示的控制资源集对应的一个或多个TCI状态，后续终端即可根据控制资源集对应的TCI状态确定至少一个第一TCI状态。
图6所示实施例对终端确定第一TCI状态进行说明。下面对终端如何根据网络设备配置的N个TCI状态确定第一TCI状态进行说明。
在一些实施例中，终端接收网络设备发送的第三指示信息，第三指示信息用于指示N个TCI状态，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，控制资源集对应的TCI状态为N个TCI状态的子集，N为正整数，终端基于N个TCI状态确定至少一个第一TCI状态。
在本申请实施例中，网络设备可以通过指示信息告知终端N个TCI状态，后续终端可以基于N个TCI状态确定物理共享信道对应的至少一个第一TCI状态，N为正整数。
其中，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，也就是说N个TCI状态可以包括N个联合TCI状态，N个上行TCI状态，N个下行TCI状态，N个下行TCI状态和上行TCI状态，或者还可以包括N个其他TCI状态，本申请实施例不做限定。
在一些实施例中，N个TCI状态包括用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少一项的QCL指示。也就是说本申请实施例中的N个TCI状态可以用于上述至少一种信道和/或至少一种信号的QCL指示。
在一些实施例中，第三指示信息携带在第三媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第三MAC CE用于指示N个TCI状态。
可选地，第三MAC CE用于指示DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第三MAC CE但不发送DCI，该第三MAC CE中指示的N个TCI状态只对应DCI中的TCI域的一个码点，因此，不需要基站额外向终端发送DCI来指示码点，从而节省信令开销。
在一些实施例中，第一指示信息携带在第四MAC CE和第二DCI中，第四MAC CE用于指示第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示至少两个码点中的一个码点。也即，第四MAC CE和第二DCI同时用于指示第二指示信息，该第四MAC CE指示有第二DCI的TCI 域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示码点，进而通过查询第四MAC CE查询得到该码点对应的N个TCI状态。此时第四MAC CE可以指示多套码点配置，每套码点配置对应有N个TCI状态。需要注意的是，每个码点对应有N个TCI状态中，每个码点对应的N值可以相同或不同。
在一些实施例中，终端可以根据网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态实际上是指复用N个TCI状态中的一部分或全部TCI状态。
可选地，N个TCI状态称为indicated TCI状态，用于表示该N个TCI状态是可以应用于多个信道/信号，并不仅限于应用于单一的信道/信号。比如，该N个indicated TCI状态中的部分或全部TCI状态可以用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少两项的传输。
在本申请实施例中，终端确定网络设备配置的N个TCI状态，则终端可以从N个TCI状态中选择至少一个TCI状态确定为第一TCI状态。
在一些实施例中，终端默认将N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。
在本申请实施例中，终端默认将N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1和TCI状态#2确定为第一TCI状态。或者，将TCI状态#1、TCI状态#4确定为第一TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为第一TCI状态。
可选的，当物理共享信道为PDSCH时，N个TCI状态中其中为joint TCI状态或DL TCI状态的TCI状态包括TCI状态#1和TCI状态#2，那么终端可以默认将第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#2，或两个TCI状态即TCI状态#1和TCI状态#2，确定为第一TCI状态。
可选的，当物理共享信道为PUSCH时，N个TCI状态中其中为joint TCI状态或UL TCI状态的TCI状态包括TCI状态#1和TCI状态#3，那么终端可以默认将第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#3，或两个TCI状态即TCI状态#1和TCI状态#3，确定为第一TCI状态。
在另一些实施例中，终端将网络设备通过指示信息指示的N个TCI状态中的至少一个TCI状态确定为第一TCI状态。
其中，网络设备向终端发送第四指示信息，该第四指示信息用于指示N个 TCI状态中的至少一个TCI状态，终端接收该第四指示信息，将该第四指示信息指示的N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。
其中，第四指示信息用于指示至少一个第一TCI状态为N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，该第四指示信息可以指示TCI状态#1和TCI状态#2为第一TCI状态。或者，该第四指示信息可以指示TCI状态#1和TCI状态#4为第一TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第四指示信息可以指示TCI状态#1为第一TCI状态。
可选的，当物理共享信道为PDSCH时，N个TCI状态中其中为joint TCI状态或DL TCI状态的TCI状态包括TCI状态#1和TCI状态#2，那么第四指示信息可以指示第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#2，或两个TCI状态即TCI状态#1和TCI状态#2，为第一TCI状态。
可选的，当物理共享信道为PUSCH时，N个TCI状态中其中为joint TCI状态或UL TCI状态的TCI状态包括TCI状态#1和TCI状态#3，那么第四指示信息可以指示第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#3，或两个TCI状态即TCI状态#1和TCI状态#3，为第一TCI状态。
可选地，该第四指示信息通过RRC、MAC CE和DCI中的至少一项来指示。例如，该第四指示信息通过RRC来指示。或者，该第四指示信息通过MAC CE来指示。或者，该第四指示信息通过DCI来指示。
在一些实施例中，该第四指示信息可以通过DCI来指示。
可选地，指示第四指示信息的DCI为DCI format 1_1或DCI format 1_2。或者，指示第四指示信息的DCI为DCI format 0_1或DCI format 0_2。
例如，若该DCI为DCI format 1_1或DCI format 1_2，则该DCI用于指示PDSCH的第一TCI状态的第四指示信息。若该DCI为DCI format 0_1或DCI format 0_2，则该DCI用于指示PUSCH的第一TCI状态的第四指示信息。
在一些实施例中，指示第四指示信息的该DCI中可以包括传输资源配置(DL assignment，或UL assignment)，即用于指示PDSCH或PUSCH的时域资源、频域资源、调制编码方式MCS等等；或者，该DCI中还可以不包括传输资源配置，即不包含PDSCH或PUSCH的时域资源、频域资源、调制编码方式MCS等等。
本申请实施例提供的方案中，终端根据网络设备配置的N个TCI状态确定 用于物理共享信道的至少一个第一TCI状态，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
需要说明的是，本申请中的第一MAC CE，第二MAC CE，第三MAC CE和，第四MAC CE，承载第二指示信息的MAC CE和第四指示信息的MAC CE中，可以任意两个或多个MAC CE为不同的MAC CE，或为相同的MAC CE。同样，本申请中的第一DCI，第二DCI，和承载第四指示信息的DCI中，可以任意两个或多个DCI为不同的DCI，或为相同的DCI。以及，本申请中的承载第二指示信息的RRC和承载第四指示信息的RRC可以为不同的RRC，或为相同的RRC。
图7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701：网络设备向终端发送第一DCI，第一DCI用于指示物理共享信道的传输资源，终端用于确定物理共享信道对应的至少一个第一TCI状态。
其中，该第一DCI用于指示物理共享信道的传输资源，也就是说该第一DCI用于调度物理共享信道，进而网络设备与终端之间可以基于该物理共享信道进行数据传输。该传输资源是指网络设备与终端之间通过该物理共享信道传输数据时所占用的资源。
在一些实施例中，该传输资源包括时域资源、频域资源和其他资源的至少一项，本申请实施例不做限定。
在一些实施例中，该物理共享信道包括PDSCH和PUSCH中的至少一项。
对于用于指示物理共享信道的第一DCI来说，物理共享信道不同，该第一DCI也不同。
可选地，若该物理共享信道为PDSCH，则该第一DCI为DCI format 1_0，而若该物理共享信道为PUSCH，则该第一DCI为DCI format 0_0。
在本申请实施例中，终端根据第一DCI确定该第一DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的至少一个第一TCI状态，以便于终端与网络设备之间基于已确定的至少一个第一TCI状态进行数据传输。
需要说明的是，本申请实施例是以终端确定物理共享信道对应的至少一个第一TCI状态进行说明。用于指示物理共享信道的传输资源的第一DCI并不用 于指示至少一个第一TCI状态，也就是说，第一DCI的作用仅用于指示传输资源，而不用于指示TCI状态。
本申请提供了一种根据DCI确定该DCI指示的物理共享信道的传输资源，进而可以确定该物理共享信道对应的TCI状态的方案，保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
图7所示实施例对终端确定第一TCI状态进行说明。下面对终端如何根据控制资源集确定第一TCI状态进行说明。
在一些实施例中，控制资源集对应有TCI状态，至少一个第一TCI状态基于控制资源集对应的TCI状态确定。
在本申请实施例中，控制资源集与TCI状态具有对应关系，终端可以基于控制资源集确定该控制资源集对应的TCI状态，进而从控制资源集对应的TCI状态中确定至少一个第一TCI状态。
在一些实施例中，该控制资源集包括不同用途的控制资源集。例如，该控制资源集为用于发送第一DCI的控制资源集，或者，该控制资源集为CORESET#0。
也就是说，终端可以根据用于发送第一DCI的控制资源集对应的TCI状态确定至少一个第一TCI状态。或者，终端也可以根据CORESET#0对应的TCI状态确定指示一个第一TCI状态。
需要说明的是，本申请实施例中的CORESET#0也可以是用于发送第一DCI的CORESET，或者，CORESET#0也可以不是用于发送第一DCI的CORESET，本申请实施例不做限定。
本申请实施例对终端可以基于控制资源集对应的TCI状态确定至少一个第一TCI状态进行说明。而对于控制资源集对应的TCI状态来说，该控制资源集对应的TCI状态的数量可能不同，下面对终端如何确定基于控制资源集对应的TCI状态进行说明。
在一些实施例中，终端基于控制资源集对应的TCI状态确定至少一个第一TCI状态的方式包括以下任一种：
(1)在控制资源集对应一个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的一个TCI状态。
在本申请实施例中，控制资源集对应一个TCI状态，则终端直接将这一个TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应一个TCI状态，则终端直接将该TCI状态确定为第一TCI状态。又例如，CORESET#0对应一个TCI状态，则终端直接将该TCI状态确定为第一TCI状态。
(2)在控制资源集对应多个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的多个TCI状态中的一个TCI状态。
在本申请实施例中，控制资源集对应多个TCI状态，则终端可以从多个TCI状态中选择一个TCI状态确定为第一TCI状态。也就是说，终端可以根据默认规则从多个TCI状态中选择一个TCI状态，进而将选择的TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应多个TCI状态，则终端可以从该用于发送第一DCI的控制资源集对应的多个TCI状态中，选择一个TCI状态确定为第一TCI状态。又例如，CORESET#0对应多个TCI状态，则终端可以从该CORESET#0对应的多个TCI状态中选择一个TCI状态确定为第一TCI状态。
可选地，若控制资源集对应的多个TCI状态包括TCI状态#1和TCI状态#2，则终端可以将第一个TCI状态(TCI状态#1)确定为第一TCI状态，或者，终端可以将第二个TCI状态(TCI状态#2)确定为第一TCI状态。
(3)在控制资源集对应多个TCI状态的情况下，至少一个第一TCI状态为控制资源集对应的多个TCI状态。
在本申请实施例中，控制资源集对应多个TCI状态，则终端可以将多个TCI状态都确定为第一TCI状态。也就是说，终端可以将控制资源集对应的多个TCI状态确定为第一TCI状态。
例如，用于发送第一DCI的控制资源集对应多个TCI状态，则终端可以将用于发送第一DCI的控制资源集对应的多个TCI状态确定为第一TCI状态。又例如，CORESET#0对应多个TCI状态，则终端可以将该CORESET#0对应的多个TCI状态确定为第一TCI状态。
可选地，若控制资源集对应的多个TCI状态包括TCI状态#1和TCI状态#2，则终端可以将第一个TCI状态(TCI状态#1)和第二个TCI状态(TCI状态#2)均确定为第一TCI状态。
需要说明的是，本申请实施例是以TCI状态为例进行说明。而在另一实施例中，当物理共享信道为PDSCH时，基于控制资源集确定的TCI状态包括联合 TCI状态和/或下行TCI状态，也就是说终端可以根据控制资源集对应的联合TCI状态和/或下行TCI状态，确定物理共享信道对应的TCI状态。而在另一实施例中，当物理共享信道为PUSCH时，基于控制资源集确定的TCI状态包括联合TCI状态和/或上行TCI状态，也就是说终端可以根据控制资源集对应的联合TCI状态和/或上行TCI状态，确定物理共享信道对应的TCI状态。
本申请实施例提供的方案中，终端可以基于控制资源集对应的TCI状态确定物理共享信道对应的TCI状态，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
上述实施例对终端如何根据控制资源集对应的TCI状态确定第一TCI状态进行说明。下面，将对终端如何确定控制资源集对应的TCI状态进行说明。
在一些实施例中，网络设备向终端发送第一指示信息，第一指示信息用于指示N个TCI状态，每个TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，控制资源集对应的TCI状态为N个TCI状态的子集，N为正整数。
在本申请实施例中，网络设备可以通过指示信息告知终端N个TCI状态，后续终端可以基于N个TCI状态确定控制资源集对应的TCI状态，N为正整数。
其中，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，也就是说N个TCI状态可以包括N个联合TCI状态，N个上行TCI状态，N个下行TCI状态，N个下行TCI状态和上行TCI状态，或者还可以包括N个其他TCI状态，本申请实施例不做限定。
在一些实施例中，N个TCI状态包括用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少一项的QCL指示。也就是说本申请实施例中的N个TCI状态可以用于上述至少一种信道和/或至少一种信号的QCL指示。
在一些实施例中，第一指示信息携带在第三媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第三MAC CE用于指示N个TCI状态。
可选地，第三MAC CE用于指示DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第三MAC CE但不发送DCI，该第三MAC CE中指示的N个TCI状态只对应DCI中的TCI域的一个码点，因此，不需要基站额外向终端发送DCI来指示码点，从而节省信令开销。
在一些实施例中，第一指示信息携带在第四MAC CE和第二DCI中，第四MAC CE用于指示第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示至少两个码点中的一个码点。也即，第四MAC CE和第二DCI同时用于指示第二指示信息，该第四MAC CE指示有第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示码点，进而通过查询第四MAC CE查询得到该码点对应的N个TCI状态。此时第四MAC CE可以指示多套码点配置，每套码点配置对应有N个TCI状态。需要注意的是，每个码点对应有N个TCI状态中，每个码点对应的N值可以相同或不同。
在一些实施例中，终端可以根据网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态实际上是指复用N个TCI状态中的一部分或全部TCI状态。
可选地，N个TCI状态称为indicated TCI状态，用于表示该N个TCI状态是可以应用于多个信道/信号，并不仅限于应用于单一的信道/信号。比如，该N个indicated TCI状态中的部分或全部TCI状态可以用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少两项的传输。
在一些实施例中，网络设备向终端发送第二指示信息，该第二指示信息用于指示控制资源集对应N个TCI状态中的至少一个TCI状态，或者，第二指示信息用于指示控制资源集对应的控制资源集组对应N个TCI状态中的至少一个TCI状态。
其中，N个TCI状态包括多个联合TCI状态和/或下行TCI状态。
在本申请实施例中，终端确定网络设备指示的N个TCI状态后，网络设备即可通过第二指示信息为终端的控制资源集配置对应的TCI状态，并且配置的控制资源集对应的TCI状态属于N个TCI状态。
该第二指示信息可以采用两种方式指示控制资源集对应的TCI状态。
其中，第二指示信息用于指示控制资源集对应N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1和TCI状态#2、TCI状态#3和TCI状态#4，该第二指示信息可以指示TCI状态#1、TCI状态#2为控制资源集对应的TCI状态。或者，该第二指示信息可以指示TCI状态#1、TCI状态#4为控制资源集对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第二指示信息可以指示TCI状态#1为控制资源集对应的TCI状态。
或者，该第二指示信息用于指示控制资源集对应的控制资源集组对应N个 TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，该第二指示信息可以指示TCI状态#1和TCI状态#2为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1和TCI状态#2。或者，该第二指示信息可以指示TCI状态#1和TCI状态#4为控制资源集对应的控制资源集组对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第二指示信息可以指示TCI状态#1为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1。
可选地，控制资源集与控制资源集组的对应关系采用RRC配置。也就是说，网络设备通过RRC为终端配置控制资源集与控制资源集组的对应关系。
在一些实施例中，该第二指示信息通过RRC和第一MAC CE中的至少一项来指示。
需要说明的是，终端还可以通过默认规则即可从N个TCI状态中确定控制资源集对应的TCI状态。
在本申请实施例中，N个TCI状态包括多个联合TCI状态和/或下行TCI状态；终端确定控制资源集的TCI状态的方案包括以下任一种：
第一种：控制资源集对应的TCI状态默认为N个TCI状态中的至少一个TCI状态。
在本申请实施例中，终端确定网络设备指示的N个TCI状态后，终端即可根据默认规则确定控制资源集对应的TCI状态，并且控制资源集对应的TCI状态属于N个TCI状态。
其中，终端默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1和TCI状态#2确定为控制资源集对应的TCI状态。或，将TCI状态#1和TCI状态#4确定为控制资源集对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为控制资源集对应的TCI状态。
第二种：控制资源集对应的控制资源集组对应的TCI状态默认为N个TCI状态中的至少一个TCI状态。
终端默认将N个TCI状态中的至少一个TCI状态确定为控制资源集对应的 控制资源集组对应的TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1、TCI状态#2确定为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1和TCI状态#2。或者，将TCI状态#1、TCI状态#4确定为控制资源集对应的控制资源集组对应的TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为控制资源集组#1对应的TCI状态，而该控制资源集对应的控制资源集组为控制资源集组#1，所以该控制资源集对应的TCI状态即为TCI状态#1。
可选地，控制资源集与控制资源集组的对应关系采用RRC和/或MAC CE配置。也就是说，网络设备通过RRC和/或MAC CE为终端配置控制资源集与控制资源集组的对应关系。
本申请实施例提供的方案中，网络设备为终端配置N个TCI状态，终端再基于配置的N个TCI状态确定控制资源集对应的TCI状态，扩展了终端确定控制资源集对应的TCI状态的方式，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
需要说明的是，本申请实施例仅是以终端基于网络设备已配置的N个TCI状态确定控制资源集对应的一个或多个TCI状态为例进行说明。而在另一实施例中，网络设备可以直接为终端配置控制资源集对应的一个或多个TCI状态，无需再基于N个TCI状态确定控制资源集对应的TCI状态。
在本申请实施例中，网络设备向终端发送第二MAC CE，该第二MAC CE用于指示控制资源集对应的TCI状态，终端接收网络设备发送的第二MAC CE，即可确定该第二MAC CE指示的控制资源集对应的TCI状态，后续终端即可根据控制资源集对应的TCI状态确定至少一个第一TCI状态。
图7所示实施例对终端确定第一TCI状态进行说明。下面对终端如何根据网络设备配置的N个TCI状态确定第一TCI状态进行说明。
在一些实施例中，网络设备向终端发送第三指示信息，第三指示信息用于指示N个TCI状态，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，控制资源集对应的TCI状态为N个TCI状态的子集，N为正整数。至少一个第一TCI状态基于N个TCI状态确定。
在本申请实施例中，网络设备可以通过指示信息告知终端N个TCI状态，后续终端可以基于N个TCI状态确定物理共享信道对应的至少一个第一TCI状 态，N为正整数。
其中，TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，也就是说N个TCI状态可以包括N个联合TCI状态，N个上行TCI状态，N个下行TCI状态，N个下行TCI状态和上行TCI状态，或者还可以包括N个其他TCI状态，本申请实施例不做限定。
在一些实施例中，N个TCI状态包括用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少一项的QCL指示。也就是说本申请实施例中的N个TCI状态可以用于上述至少一种信道和/或至少一种信号的QCL指示。
在一些实施例中，第三指示信息携带在第三媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第三MAC CE用于指示N个TCI状态。
可选地，第三MAC CE用于指示DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第三MAC CE但不发送DCI，该第三MAC CE中指示的N个TCI状态只对应DCI中的TCI域的一个码点，因此，不需要基站额外向终端发送DCI来指示码点，从而节省信令开销。
在一些实施例中，第一指示信息携带在第四MAC CE和第二DCI中，第四MAC CE用于指示第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示至少两个码点中的一个码点。也即，第四MAC CE和第二DCI同时用于指示第二指示信息，该第四MAC CE指示有第二DCI的TCI域中的至少两个码点分别对应的N个TCI状态，第二DCI用于指示码点，进而通过查询第四MAC CE查询得到该码点对应的N个TCI状态。此时第四MAC CE可以指示多套码点配置，每套码点配置对应有N个TCI状态。需要注意的是，每个码点对应有N个TCI状态中，每个码点对应的N值可以相同或不同。
在一些实施例中，终端可以根据网络设备已配置的N个TCI状态确定控制资源集对应的TCI状态实际上是指复用N个TCI状态中的一部分或全部TCI状态。
可选地，N个TCI状态称为indicated TCI状态，用于表示该N个TCI状态是可以应用于多个信道/信号，并不仅限于应用于单一的信道/信号。比如，该N个indicated TCI状态中的部分或全部TCI状态可以用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少两项的传输。
在本申请实施例中，终端确定网络设备配置的N个TCI状态，则终端可以从N个TCI状态中选择至少一个TCI状态确定为第一TCI状态。
在一些实施例中，终端默认将N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。
在本申请实施例中，终端默认将N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，将TCI状态#1和TCI状态#2确定为第一TCI状态。或者，将TCI状态#1、TCI状态#4确定为第一TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，将TCI状态#1确定为第一TCI状态。
可选的，当物理共享信道为PDSCH时，N个TCI状态中其中为joint TCI状态或DL TCI状态的TCI状态包括TCI状态#1和TCI状态#2，那么终端可以默认将第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#2，或两个TCI状态即TCI状态#1和TCI状态#2，确定为第一TCI状态。
可选的，当物理共享信道为PUSCH时，N个TCI状态中其中为joint TCI状态或UL TCI状态的TCI状态包括TCI状态#1和TCI状态#3，那么终端可以默认将第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#3，或两个TCI状态即TCI状态#1和TCI状态#3，确定为第一TCI状态。
在另一些实施例中，终端将网络设备通过指示信息指示的N个TCI状态中的至少一个TCI状态确定为第一TCI状态。
其中，网络设备向终端发送第四指示信息，该第四指示信息用于指示N个TCI状态中的至少一个TCI状态，终端接收该第四指示信息，将该第四指示信息指示的N个TCI状态中的至少一个TCI状态确定为至少一个第一TCI状态。
其中，第四指示信息用于指示至少一个第一TCI状态为N个TCI状态中的至少一个TCI状态。例如，N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3和TCI状态#4，该第四指示信息可以指示TCI状态#1和TCI状态#2为第一TCI状态。或者，该第四指示信息可以指示TCI状态#1和TCI状态#4为第一TCI状态。又例如，N个TCI状态包括TCI状态#1和TCI状态#2，该第四指示信息可以指示TCI状态#1为第一TCI状态。
可选的，当物理共享信道为PDSCH时，N个TCI状态中其中为joint TCI状态或DL TCI状态的TCI状态包括TCI状态#1和TCI状态#2，那么第四指示信息可以指示第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#2， 或两个TCI状态即TCI状态#1和TCI状态#2，为第一TCI状态。
可选的，当物理共享信道为PUSCH时，N个TCI状态中其中为joint TCI状态或UL TCI状态的TCI状态包括TCI状态#1和TCI状态#3，那么第四指示信息可以指示第一个TCI状态即TCI状态#1，或第二个TCI状态即TCI状态#3，或两个TCI状态即TCI状态#1和TCI状态#3，为第一TCI状态。
可选地，该第四指示信息通过RRC、MAC CE和DCI中的至少一项来指示。例如，该第四指示信息通过RRC来指示。或者，该第四指示信息通过MAC CE来指示。或者，该第四指示信息通过DCI来指示。
在一些实施例中，该第四指示信息可以通过DCI来指示。
可选地，指示第四指示信息的DCI为DCI format 1_1或DCI format 1_2。或者，指示第四指示信息的DCI为DCI format 0_1或DCI format 0_2。
例如，若该DCI为DCI format 1_1或DCI format 1_2，则该DCI用于指示PDSCH的第一TCI状态的第四指示信息。若该DCI为DCI format 0_1或DCI format 0_2，则该DCI用于指示PUSCH的第一TCI状态的第四指示信息。
在一些实施例中，指示第四指示信息的该DCI中可以包括传输资源配置(DL assignment，或UL assignment)，即用于指示PDSCH或PUSCH的时域资源、频域资源、调制编码方式MCS等等；或者，该DCI中还可以不包括传输资源配置，即不包含PDSCH或PUSCH的时域资源、频域资源、调制编码方式MCS等等。
其中，该传输资源配置包括时域资源、频域资源和MCS中的至少一项。
本申请实施例提供的方案中，终端根据网络设备配置的N个TCI状态确定用于物理共享信道的至少一个第一TCI状态，进而保证基于确定的TCI状态传输物理共享信道，提高了传输物理共享信道的灵活性。
需要说明的是，本申请中的第一MAC CE，第二MAC CE，第三MAC CE和，第四MAC CE，承载第二指示信息的MAC CE和第四指示信息的MAC CE中，可以任意两个或多个MAC CE为不同的MAC CE，或为相同的MAC CE。同样，本申请中的第一DCI，第二DCI，和承载第四指示信息的DCI中，可以任意两个或多个DCI为不同的DCI，或为相同的DCI。以及，本申请中的承载第二指示信息的RRC和承载第四指示信息的RRC可以为不同的RRC，或为相同的RRC。
图8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8，该装置包括：
接收模块801，用于接收网络设备发送的第一DCI，所述第一DCI用于指示物理共享信道的传输资源；
处理模块802，用于确定所述物理共享信道对应的至少一个第一TCI状态。
在一些实施例中，所述处理模块802，还用于基于控制资源集对应的TCI状态确定所述至少一个第一TCI状态。
在一些实施例中，所述控制资源集为用于发送所述第一DCI的控制资源集，或者，所述控制资源集为CORESET#0。
在一些实施例中，所述处理模块802，还用于：
在所述控制资源集对应一个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的一个TCI状态；
或者，
在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态中的一个TCI状态；
或者，
在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态。
在一些实施例中，所述接收模块801，还用于接收所述网络设备发送的第一指示信息，所述第一指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，所述控制资源集对应的TCI状态为所述N个TCI状态的子集，N为正整数。
在一些实施例中，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；所述接收模块801，还用于接收所述网络设备发送的第二指示信息；
所述第二指示信息用于指示所述控制资源集对应所述N个TCI状态中的至少一个TCI状态；
或者，
所述第二指示信息用于指示所述控制资源集对应的控制资源集组对应所述N个TCI状态中的至少一个TCI状态。
在一些实施例中，所述第二指示信息通过RRC和第一MAC CE中的至少一项来指示。
在一些实施例中，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；所述处理模块802，还用于：
默认将所述N个TCI状态中的至少一个TCI状态确定为所述控制资源集对应的TCI状态；
或者，
默认将所述N个TCI状态中的至少一个TCI状态确定为所述控制资源集对应的控制资源集组对应的TCI状态。
在一些实施例中，所述接收模块801，还用于接收所述网络设备发送的第二MAC CE，所述第二MAC CE用于指示所述控制资源集对应的所述TCI状态。
在一些实施例中，所述接收模块801，还用于接收所述网络设备发送的第三指示信息，所述第三指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种；
所述处理模块802，还用于基于所述N个TCI状态确定所述至少一个第一TCI状态。
在一些实施例中，所述处理模块802，还用于默认将所述N个TCI状态中的至少一个TCI状态确定为所述至少一个第一TCI状态。
在一些实施例中，所述接收模块801，还用于接收所述网络设备发送的第四指示信息，所述第四指示信息用于指示所述N个TCI状态中的至少一个TCI状态；
所述处理模块802，还用于将所述第四指示信息指示的所述N个TCI状态中的至少一个TCI状态确定为所述至少一个第一TCI状态。
在一些实施例中，所述第四指示信息通过RRC、MAC CE和DCI中的至少一项来指示。
在一些实施例中，所述第四指示信息通过所述DCI来指示，所述DCI为DCI format 1_1或DCI format 1_2；
或者，
所述DCI为DCI format 0_1或DCI format 0_2。
在一些实施例中，所述N个TCI状态包括用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少一项的QCL指示。
在一些实施例中，第一指示信息和/或第三指示信息携带在第三MAC CE中，所述第三MAC CE用于指示所述N个TCI状态；或，
第一指示信息和/或第三指示信息携带在第四MAC CE和第二DCI中，所述第四MAC CE用于指示第二DCI的传输配置指示TCI域中的至少两个码点分别对应的N个TCI状态，所述第二DCI用于指示所述至少两个码点中的一个码点。
在一些实施例中，所述第一DCI不用于指示所述至少一个第一TCI状态。
在一些实施例中，所述物理共享信道包括PDSCH和PUSCH中的至少一项。
在一些实施例中，所述物理共享信道为PDSCH，所述第一DCI为DCI format1_0；和/或，
所述物理共享信道为PUSCH，所述第一DCI为DCI format 0_0。
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9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9，该装置包括：
发送模块901，用于向终端发送第一DCI，所述第一DCI用于指示物理共享信道的传输资源，所述终端用于确定所述物理共享信道对应的至少一个第一TCI状态。
在一些实施例中，所述至少一个第一TCI状态基于控制资源集对应的TCI状态确定。
在一些实施例中，所述控制资源集为用于发送所述第一DCI的控制资源集，或者，所述控制资源集为CORESET#0。
在一些实施例中，在所述控制资源集对应一个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的一个TCI状态；
或者，
在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态中的一个TCI状态；
或者，
在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态。
在一些实施例中，所述发送模块901，还用于向所述终端发送第一指示信息，所述第一指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，所述控制资源集对应的TCI状态为所述N个TCI状态的子集，N为正整数。
在一些实施例中，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；所述发送模块901，还用于向所述终端发送第二指示信息；
所述第二指示信息用于指示所述控制资源集对应所述N个TCI状态中的至少一个TCI状态；
或者，
所述第二指示信息用于指示所述控制资源集对应的控制资源集组对应所述N个TCI状态中的至少一个TCI状态。
在一些实施例中，所述第二指示信息通过RRC和第一MAC CE中的至少一项来指示。
在一些实施例中，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；
所述控制资源集对应的TCI状态默认为所述N个TCI状态中的至少一个TCI状态；
或者，
所述控制资源集对应的控制资源集组对应的TCI状态默认为所述N个TCI状态中的至少一个TCI状态。
在一些实施例中，所述发送模块，还用于向所述终端发送第二MAC CE，所述第二MAC CE用于指示所述控制资源集对应的所述TCI状态。
在一些实施例中，所述发送模块901，还用于向所述终端发送发送第三指示信息，所述第三指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种；
所述至少一个第一TCI状态基于所述N个TCI状态确定。
在一些实施例中，所述至少一个第一TCI状态默认为所述N个TCI状态中的至少一个TCI状态。
在一些实施例中，所述发送模块901，还用于向所述终端发送第四指示信息，所述第四指示信息用于指示所述N个TCI状态中的至少一个TCI状态；
所述至少一个第一TCI状态为所述第四指示信息指示的所述N个TCI状态 中的至少一个TCI状态。
在一些实施例中，所述第四指示信息通过RRC、MAC CE和DCI中的至少一项来指示。
在一些实施例中，所述第四指示信息通过所述DCI来指示，所述DCI为DCI format 1_1或DCI format 1_2；
或者，
所述DCI为DCI format 0_1或DCI format 0_2。
在一些实施例中，所述N个TCI状态包括用于PDCCH、PDSCH、PUCCH、PUSCH、CSI-RS和SRS中的至少一项的QCL指示。
在一些实施例中，第一指示信息和/或第三指示信息携带在第三MAC CE中，所述第三MAC CE用于指示所述N个TCI状态；或，
第一指示信息和/或第三指示信息携带在第四MAC CE和第二DCI中，所述第四MAC CE用于指示第二DCI的传输配置指示TCI域中的至少两个码点分别对应的N个TCI状态，所述第二DCI用于指示所述至少两个码点中的一个码点。
在一些实施例中，所述第一DCI不用于指示所述至少一个第一TCI状态。
在一些实施例中，所述物理共享信道包括PDSCH和PUSCH中的至少一项。
在一些实施例中，所述物理共享信道为PDSCH，所述第一DCI为DCI format1_0；和/或，所述物理共享信道为PUSCH，所述第一DCI为DCI format 0_0。
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10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1001、接收器1002、发射器1003、存储器1004和总线1005。
处理器1001包括一个或者一个以上处理核心，处理器1001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1002和发射器1003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1004通过总线1005与处理器1001相连。
存储器1004可用于存储至少一个程序代码，处理器1001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，提供了一种通信系统，所述通信系统包括终端和网络设备，所述终端用于实现如上述所述的TCI状态确定方法，所述网络设备用于实现如上述所述的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 (44)

  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第一下行控制信息DCI，所述第一DCI用于指示物理共享信道的传输资源；
    确定所述物理共享信道对应的至少一个第一TCI状态。
  2. 根据权利要求1所述的方法，其特征在于，所述确定所述物理共享信道对应的至少一个第一TCI状态，包括：
    基于控制资源集对应的TCI状态确定所述至少一个第一TCI状态。
  3. 根据权利要求2所述的方法，其特征在于，所述控制资源集为用于发送所述第一DCI的控制资源集，或者，所述控制资源集为CORESET#0。
  4. 根据权利要求2所述的方法，其特征在于，所述基于控制资源集对应的TCI状态确定所述至少一个第一TCI状态，包括：
    在所述控制资源集对应一个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的一个TCI状态；
    或者，
    在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态中的一个TCI状态；
    或者，
    在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态。
  5. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的第一指示信息，所述第一指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，所述控制资源集对应的TCI状态为所述N个TCI状态的子集，N 为正整数。
  6. 根据权利要求5所述的方法，其特征在于，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；所述方法还包括：
    接收所述网络设备发送的第二指示信息；
    所述第二指示信息用于指示所述控制资源集对应所述N个TCI状态中的至少一个TCI状态；
    或者，
    所述第二指示信息用于指示所述控制资源集对应的控制资源集组对应所述N个TCI状态中的至少一个TCI状态。
  7. 根据权利要求6所述的方法，其特征在于，所述第二指示信息通过RRC和第一媒体接入控制层控制元素MAC CE中的至少一项来指示。
  8. 根据权利要求5所述的方法，其特征在于，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；所述方法还包括：
    默认将所述N个TCI状态中的至少一个TCI状态确定为所述控制资源集对应的TCI状态；
    或者，
    默认将所述N个TCI状态中的至少一个TCI状态确定为所述控制资源集对应的控制资源集组对应的TCI状态。
  9. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的第二MAC CE，所述第二MAC CE用于指示所述控制资源集对应的所述TCI状态。
  10. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的第三指示信息，所述第三指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种；
    所述确定所述物理共享信道对应的至少一个第一TCI状态，包括：
    基于所述N个TCI状态确定所述至少一个第一TCI状态。
  11. 根据权利要求10所述的方法，其特征在于，所述基于所述N个TCI状态确定所述至少一个第一TCI状态，包括：
    默认将所述N个TCI状态中的至少一个TCI状态确定为所述至少一个第一TCI状态。
  12. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的第四指示信息，所述第四指示信息用于指示所述N个TCI状态中的至少一个TCI状态；
    所述基于所述N个TCI状态确定所述至少一个第一TCI状态，包括：
    将所述第四指示信息指示的所述N个TCI状态中的至少一个TCI状态确定为所述至少一个第一TCI状态。
  13. 根据权利要求12所述的方法，其特征在于，所述第四指示信息通过RRC、MAC CE和DCI中的至少一项来指示。
  14. 根据权利要求13所述的方法，其特征在于，所述第四指示信息通过所述DCI来指示；
    所述DCI为DCI format 1_1或DCI format 1_2；
    或者，
    所述DCI为DCI format 0_1或DCI format 0_2。
  15. 根据权利要求5或10所述的方法，其特征在于，所述N个TCI状态包括用于物理下行控制信道PDCCH、物理下行共享信道PDSCH、物理上行控制信道PUCCH、物理上行共享信道PUSCH、信道状态信息参考信号CSI-RS和探测参考信号SRS中的至少一项的准共址QCL指示。
  16. 根据权利要求5或10所述的方法，其特征在于，
    第一指示信息和/或第三指示信息携带在第三MAC CE中，所述第三MAC CE用于指示所述N个TCI状态；或，
    第一指示信息和/或第三指示信息携带在第四MAC CE和第二DCI中，所述第四MAC CE用于指示第二DCI的传输配置指示TCI域中的至少两个码点分别对应的N个TCI状态，所述第二DCI用于指示所述至少两个码点中的一个码点。
  17. 根据权利要求1至16任一所述的方法，其特征在于，所述第一DCI不用于指示所述至少一个第一TCI状态。
  18. 根据权利要求1至17任一所述的方法，其特征在于，所述物理共享信道包括PDSCH和PUSCH中的至少一项。
  19. 根据权利要求18所述的方法，其特征在于，所述物理共享信道为PDSCH，所述第一DCI为DCI format 1_0；和/或，
    所述物理共享信道为PUSCH，所述第一DCI为DCI format 0_0。
  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：
    向终端发送第一DCI，所述第一DCI用于指示物理共享信道的传输资源，所述终端用于确定所述物理共享信道对应的至少一个第一TCI状态。
  21. 根据权利要求20所述的方法，其特征在于，所述至少一个第一TCI状态基于控制资源集对应的TCI状态确定。
  22. 根据权利要求21所述的方法，其特征在于，所述控制资源集为用于发送所述第一DCI的控制资源集，或者，所述控制资源集为CORESET#0。
  23. 根据权利要求21所述的方法，其特征在于，
    在所述控制资源集对应一个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的一个TCI状态；
    或者，
    在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态中的一个TCI状态；
    或者，
    在所述控制资源集对应多个TCI状态的情况下，所述至少一个第一TCI状态为所述控制资源集对应的所述多个TCI状态。
  24. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第一指示信息，所述第一指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种，所述控制资源集对应的TCI状态为所述N个TCI状态的子集，N为正整数。
  25. 根据权利要求24所述的方法，其特征在于，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；所述方法还包括：
    向所述终端发送第二指示信息；
    所述第二指示信息用于指示所述控制资源集对应所述N个TCI状态中的至少一个TCI状态；
    或者，
    所述第二指示信息用于指示所述控制资源集对应的控制资源集组对应所述N个TCI状态中的至少一个TCI状态。
  26. 根据权利要求25所述的方法，其特征在于，所述第二指示信息通过RRC和第一MAC CE中的至少一项来指示。
  27. 根据权利要求24所述的方法，其特征在于，所述N个TCI状态包括多个联合TCI状态和/或下行TCI状态；
    所述控制资源集对应的TCI状态默认为所述N个TCI状态中的至少一个TCI状态；
    或者，
    所述控制资源集对应的控制资源集组对应的TCI状态默认为所述N个TCI 状态中的至少一个TCI状态。
  28. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第二MAC CE，所述第二MAC CE用于指示所述控制资源集对应的所述TCI状态。
  29. 根据权利要求20所述的方法，其特征在于，所述方法还包括：
    向所述终端发送发送第三指示信息，所述第三指示信息用于指示N个TCI状态，所述TCI状态包括联合TCI状态、上行TCI状态和下行TCI状态中的至少一种；
    所述至少一个第一TCI状态基于所述N个TCI状态确定。
  30. 根据权利要求29所述的方法，其特征在于，
    所述至少一个第一TCI状态默认为所述N个TCI状态中的至少一个TCI状态。
  31. 根据权利要求29所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第四指示信息，所述第四指示信息用于指示所述N个TCI状态中的至少一个TCI状态；
    所述至少一个第一TCI状态为所述第四指示信息指示的所述N个TCI状态中的至少一个TCI状态。
  32. 根据权利要求31所述的方法，其特征在于，所述第四指示信息通过RRC、MAC CE和DCI中的至少一项来指示。
  33. 根据权利要求32所述的方法，其特征在于，所述第四指示信息通过所述DCI来指示；
    所述DCI为DCI format 1_1或DCI format 1_2；
    或者，
    所述DCI为DCI format 0_1或DCI format 0_2。
  34. 根据权利要求24或29所述的方法，其特征在于，所述N个TCI状态包括用于物理下行控制信道PDCCH、物理下行共享信道PDSCH、物理上行控制信道PUCCH、物理上行共享信道PUSCH、信道状态信息参考信号CSI-RS和探测参考信号SRS中的至少一项的准共址QCL指示。
  35. 根据权利要求24或29所述的方法，其特征在于，
    第一指示信息和/或第三指示信息携带在第三MAC CE中，所述第三MAC CE用于指示所述N个TCI状态；或，
    第一指示信息和/或第三指示信息携带在第四MAC CE和第二DCI中，所述第四MAC CE用于指示第二DCI的传输配置指示TCI域中的至少两个码点分别对应的N个TCI状态，所述第二DCI用于指示所述至少两个码点中的一个码点。
  36. 根据权利要求20至35任一所述的方法，其特征在于，所述第一DCI不用于指示所述至少一个第一TCI状态。
  37. 根据权利要求20至36任一所述的方法，其特征在于，所述物理共享信道包括PDSCH和PUSCH中的至少一项。
  38. 根据权利要求37所述的方法，其特征在于，所述物理共享信道为PDSCH，所述第一DCI为DCI format 1_0；和/或，
    所述物理共享信道为PUSCH，所述第一DCI为DCI format 0_0。
  39. 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第一下行控制信息DCI，所述第一DCI用于指示物理共享信道的传输资源；
    确定模块，用于确定所述物理共享信道对应的至少一个第一TCI状态。
  40. 一种TCI状态确定装置，其特征在于，所述装置包括：
    发送模块，用于向终端发送第一DCI，所述第一DCI用于指示物理共享信 道的传输资源，所述终端用于确定所述物理共享信道对应的至少一个第一TCI状态。
  41. 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。
  42. 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38任一所述的TCI状态确定方法。
  43. 一种通信系统，其特征在于，所述通信系统包括终端和网络设备，所述终端用于实现如权利要求1至19任一所述的TCI状态确定方法，所述网络设备用于实现如权利要求20至38任一所述的TCI状态确定方法。
  44. 一种计算机可读存储介质，其特征在于，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38任一所述的TCI状态确定方法。
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