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WO2024045171A1 - 信息指示方法、装置、设备及存储介质 - Google Patents

信息指示方法、装置、设备及存储介质 Download PDF

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Publication number
WO2024045171A1
WO2024045171A1 PCT/CN2022/116799 CN2022116799W WO2024045171A1 WO 2024045171 A1 WO2024045171 A1 WO 2024045171A1 CN 2022116799 W CN2022116799 W CN 2022116799W WO 2024045171 A1 WO2024045171 A1 WO 2024045171A1
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WO
WIPO (PCT)
Prior art keywords
information
tci
dci
terminal
indication
Prior art date
Application number
PCT/CN2022/116799
Other languages
English (en)
French (fr)
Inventor
李明菊
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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 PCT/CN2022/116799 priority Critical patent/WO2024045171A1/zh
Priority to CN202280003431.6A priority patent/CN115669158A/zh
Publication of WO2024045171A1 publication Critical patent/WO2024045171A1/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
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

Definitions

  • the present application relates to the field of mobile communications, and in particular to an information indication method, device, equipment and storage medium.
  • the mobile communication system provides a method of data transmission between network equipment and terminals through beams, 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
  • the embodiments of the present application provide an information indication method, device, equipment and storage medium to ensure the accuracy of decoding control information, thereby improving the accuracy of the determined TCI status to ensure the reliability of transmission.
  • the technical solutions are as follows:
  • an information indication method is provided, the method is executed by a terminal, and the method includes:
  • the TCI state includes at least one of joint TCI state, downlink TCI state and uplink TCI state, M is a positive integer.
  • an information indication method is provided, the method is executed by a network device, and the method includes:
  • the first indication information is used by the terminal to determine whether the first DCI includes a first information field.
  • the first information field is used to instruct the terminal to use M TCI states to perform PDSCH.
  • reception, the TCI state includes at least one of a joint TCI state, a downlink TCI state and an uplink TCI state, and M is a positive integer.
  • an information indicating device is provided, and the device includes:
  • a receiving module configured to receive the first instruction information sent by the network device
  • a processing module configured to determine whether the first DCI includes a first information field according to the first indication information.
  • the first information field is used to instruct the terminal to use M TCI states to receive the PDSCH.
  • the TCI states Including at least one of joint TCI status, downlink TCI status and uplink TCI status, M is a positive integer.
  • an information indication device includes:
  • a sending module configured to send first indication information to the terminal.
  • the first indication information is used by the terminal to determine whether the first DCI includes a first information field.
  • the first information field is used to instruct the terminal to use M
  • the PDSCH is received in a TCI state, where the TCI state includes at least one of a joint TCI state, a downlink TCI state and an uplink TCI state, and M is a positive integer.
  • a terminal includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute The instructions can be executed to implement the information indication method in the above aspects.
  • 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 information indication method as described above.
  • a communication system includes a terminal and a network device.
  • the terminal is used to implement the information indication method as described in the first aspect.
  • the network device is used to implement The information indication 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 information indication method in the above aspect.
  • a chip is provided.
  • the chip includes programmable logic circuits and/or program instructions. When the chip is run on a terminal or network device, it is used to implement the information indication 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 information indication method of the above aspect.
  • This application provides a solution for determining whether the control information includes an information field indicating the TCI status to be used through indication information, ensuring the accuracy of decoding the control information, thereby improving the accuracy of the determined TCI status to ensure transmission reliability.
  • 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 an information indication method provided by an exemplary embodiment of the present application
  • Figure 4 shows a flow chart of an information indication method provided by an exemplary embodiment of the present application
  • Figure 5 shows a flow chart of an information indication method provided by an exemplary embodiment of the present application
  • Figure 6 shows a block diagram of an information indication device provided by an exemplary embodiment of the present application
  • Figure 7 shows a block diagram of an information indication device provided by an exemplary embodiment of the present application.
  • Figure 8 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • word “if” as used herein may be interpreted as "when” or “when” or “in response to determining.”
  • the information including but not limited to user equipment information, user personal information, etc.
  • data including but not limited to data used for analysis, stored data, displayed data, etc.
  • signals involved in this application All are authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards of relevant countries and regions.
  • 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.
  • Rx spatial parameter spatial parameter
  • UL spatial filter uplink spatial filter
  • spatial setting spatial setting
  • spatial relation information spatial relationship information
  • 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 channel includes at least one of PDCCH, PDSCH, PUSCH or PUCCH.
  • the reference signal includes at least one of CSI-RS, SRS, PRS or TRS.
  • the CSI-RS includes at least one of CSI-RS used for channel state information measurement, CSI-RS used for beam measurement, or CSI-RS used 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.
  • 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 the network device indicates a joint TCI state, the joint TCI state can be used for both uplink transmission and downlink transmission.
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • PDCCH Physical Downlink Control Channel, physical downlink control channel
  • CSI-RS Channel State Information Reference Signal
  • the uplink TCI state can be used
  • 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.
  • Figure 3 shows a flow chart of an information indication method provided by an exemplary embodiment of the present application.
  • the example can be applied to the terminal and network device shown in Figure 1.
  • the method includes at least part of the following content:
  • Step 301 The network device sends first indication information to the terminal.
  • the first indication information is used by the terminal to determine whether the first DCI includes the first information field.
  • the first information field is used to instruct the terminal to use M TCI states to receive PDSCH.
  • the TCI state includes at least one of the joint TCI state, the downlink TCI state and the uplink TCI state, and M is a positive integer.
  • Step 302 The terminal receives the first instruction information sent by the network device, and determines whether the first DCI includes the first information field according to the first instruction information.
  • the first information field is used to instruct the terminal to use M TCI states to perform physical downlink shared channel PDSCH.
  • the TCI state includes at least one of the joint TCI state, the downlink TCI state and the uplink TCI state, and M is a positive integer.
  • the first DCI refers to information about network device configuration parameters for the terminal.
  • the first indication information indicates whether the first DCI includes a first information field. For example, if the first indication information is 1, it means that the first DCI includes the first information field, and if the first indication information is 0, it means that the first DCI does not include the first information field.
  • the first information field instructs the terminal to use M TCI states for PDSCH reception. That is to say, the terminal performs PDSCH reception based on the selected M TCI states.
  • the network device will send second indication information to the terminal.
  • the second indication information indicates N TCI states.
  • the terminal receives the second indication information sent by the network device and can determine based on the GIA second indication information.
  • N TCI states N is a positive integer, and M is not greater than N, and the M TCI states belong to a subset of the N TCI states indicated by the second indication information. That is to say, the first information field instructs the terminal to use M TCI states among the N TCI states indicated by the second indication information for PDSCH reception, and the terminal selects M TCIs from the N TCI states indicated by the second indication information. status for PDSCH reception.
  • the second indication information is used to indicate N TCI states. That is to say, the network device sends the second indication information indicating N TCI states to the terminal. After the terminal receives the second indication information, based on the second indication information, The N TCI states configured by the network device for the terminal can be determined.
  • the N TCI states indicated by the second indication information include TCI state #1, TCI state #2, TCI state #3, TCI state #4, TCI state #5 and TCI state #6, and the M indicated by the first information field
  • the TCI states are TCI state #1, TCI state #2, TCI state #4 and TCI state #5 among the N TCI states.
  • the N TCI states indicated by the second indication information include TCI state #1 and TCI state #2
  • the M TCI states indicated by the first information field are TCI state #1 among the N TCI states.
  • the N TCI states indicated by the second indication information include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and the M TCI states indicated by the first information field are among the N TCI states.
  • TCI status #1 and TCI status #2 are among the N TCI states.
  • the TCI status includes at least one of the combined TCI status, the downlink TCI status and the uplink TCI status.
  • the joint TCI state can be used for both uplink and downlink transmission.
  • the uplink TCI status is used for uplink transmission.
  • Downlink TCI status is used for downlink transmission.
  • the network device sends first indication information to the terminal for the terminal to determine whether the first DCI includes the first information domain. After receiving the first indication information, the terminal can proceed according to the first indication. The information determines whether the first DCI includes the first information field, and further determines whether the M TCI states used can be determined based on the first information field.
  • 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 whether the control information includes an information field indicating the TCI status used through indication information, ensuring the accuracy of decoding the control information, thereby improving the accuracy of the determined TCI status to ensure the transmission reliability.
  • the embodiment shown in Figure 3 illustrates the terminal receiving the first indication information.
  • the specific terminal will also determine whether the first DCI includes the first information domain based on the first indication information.
  • the following describes how the terminal determines whether the first DCI includes the first information domain based on the first indication information.
  • the first indication information is used to indicate the target PDSCH transmission method, and the terminal can determine whether the first DCI includes the first information domain according to whether the first indication information indicates the target PDSCH transmission method.
  • the first indication information indicates the target PDSCH transmission method
  • the target PDSCH transmission method refers to the PDSCH transmission method that the network device indicates to the terminal and needs to adopt at least two TCI states.
  • the target PDSCH transmission method includes at least one of the following:
  • the frequency division multiplexing method A can also be represented by FDMscheme A.
  • the frequency division multiplexing method A means that the two TCI states correspond to different frequency domain resources, but correspond to the same redundancy version. In other words, the terminal can assume that different TCI states are used to receive a TB in different frequency domain resources. A PDSCH transmission opportunity.
  • the frequency division multiplexing method B can also be represented by FDMscheme B.
  • the frequency division multiplexing method B means that the two TCI states correspond to different frequency domain resources, but correspond to different redundancy versions. That is to say, the terminal can assume that different TCI states are used to receive a TB in different frequency domain resources. Two PDSCH transmission opportunities.
  • the time division multiplexing method A can also be represented by TDM scheme A.
  • the time domain multiplexing method A means that different TCI states correspond to different time domain resources.
  • the single frequency network method A can also be represented by SFN-schemeA.
  • the single-frequency network method A means that if the network device indicates at least two TCI states, the terminal assumes that the DMRS port used to transmit PDSCH is quasi-co-located with the reference signal corresponding to the at least two TCI states.
  • the single frequency network method B can also be represented by SFN-schemeB.
  • the single-frequency network method B means that if the network device indicates at least two TCI states, the terminal assumes that the DMRS port used to transmit PDSCH is quasi-colocated with the reference signal corresponding to the at least two TCI states, except for the quasi-colocation of the last TCI state.
  • the DMRS port used to transmit PDSCH corresponds to at least two CDM (Code Division Multiplexing, CDM) groups, and the corresponding TCI states of at least two CDM groups are different.
  • CDM Code Division Multiplexing
  • the terminal can determine that the first DCI includes the first information domain.
  • the embodiment of the present application takes as an example that when the terminal determines that the PDSCH transmission method indicated by the first indication information is the target PDSCH transmission method, the first DCI includes the first information domain. In another embodiment, the terminal also determines that the first DCI does not include the first information field.
  • the terminal determines that the first DCI does not include the first information domain.
  • the terminal only when the first indication information indicates the first indication information of the target PDSCH transmission method, the terminal will determine that the first DCI includes the first information domain. If the first indication information does not indicate the target PDSCH transmission method, the terminal determines that the first DCI does not include the first information field.
  • the embodiment of the present application takes as an example whether the first indication information indicates the target PDSCH transmission method.
  • the terminal may also use other methods to determine that the first DCI does not include the first information domain.
  • the terminal determines that the first DCI does not include the first indication information. That is to say, if the terminal does not receive the first indication information, it means that the network device did not indicate to the terminal whether the first DCI includes the first information domain through the first indication information, and the terminal can determine that the first DCI does not include the first information domain. information domain.
  • the embodiment of the present application provides a solution for determining whether the first DCI includes the first information domain according to the PDSCH transmission method indicated by the first indication information, ensuring the reliability of determining whether the first DCI includes the first information domain and improving the reliability of the determination. This ensures the accuracy of the terminal's decoding of the first DCI, thereby ensuring the reliability of determining the PDCCH carrying the first DCI and the corresponding PDSCH transmission.
  • the embodiment shown in Figure 3 illustrates the terminal receiving the first indication information. The following describes how the terminal determines whether the first DCI includes the first information field according to the first indication information.
  • the first indication information is carried in RRC (Radio Resource Control, Radio Resource Control) signaling, and the RRC signaling is used to indicate whether the first DCI includes the first information domain. That is to say, the RRC signaling directly carries information indicating whether the first DCI includes the first information domain. For example, the RRC signaling uses 1 bit to indicate whether the first DCI includes the information of the first information domain. If 1 bit in the RRC signaling is 1, it indicates that the first DCI includes the first information domain. If 1 bit in the RRC signaling is 0, it indicates that the first DCI includes the first information domain. For example, the RRC signaling uses enable to indicate that the first DCI includes the information of the first information domain; and/or uses disable to indicate that the first DCI does not include the information of the first information domain.
  • RRC Radio Resource Control, Radio Resource Control
  • the terminal can determine whether the first DCI includes the first information domain based on the first indication information, which ensures the reliability of the terminal determining whether the first DCI includes the first information domain and improves the reliability of the terminal.
  • the accuracy of the terminal's decoding of the first DCI ensures the reliability of determining the PDCCH carrying the first DCI and the corresponding PDSCH reception.
  • the first DCI includes the first information domain, and the parameters included in the first DCI will be described below.
  • the first DCI includes downlink resource allocation information, or the first DCI does not include downlink resource allocation information.
  • the downlink resource configuration information refers to information that configures resources for the terminal for downlink transmission.
  • the downlink resource allocation information includes at least one of the following:
  • the time domain resource information is used to indicate time domain resources, that is to say, the time domain resource information indicates time domain resources used for PDSCH.
  • the frequency domain resource information is used to indicate frequency domain resources, that is to say, the frequency domain resource information indicates frequency domain resources used for PDSCH.
  • HARQ Hybrid Automatic Repeat reQuest, hybrid automatic repeat request
  • the first DCI that does not include downlink resource allocation information has the following characteristics, that is, it includes at least one of the following:
  • the modulation and coding method field used for PDSCH is all ‘1’.
  • the redundancy version field used for PDSCH is all ‘1’.
  • the frequency domain resource information allocation field used for PDSCH is all ‘0’ or all ‘1’.
  • the first DCI does not include downlink resource allocation information, that is to say, the first DCI includes at least one of the above four types of information fields, which is the above special bit value.
  • the frequency domain resource information allocation field for PDSCH in the first DCI is all '0' or all '1'.
  • the embodiment of the present application takes the characteristics of the first DCI that does not include downlink resource allocation information as an example for description.
  • the first DCI including downlink resource allocation information has an opposite relationship with the above-mentioned first DCI not including downlink resource allocation information.
  • the first DCI including downlink resource allocation information has at least one of the following characteristics:
  • the modulation and coding method field used for PDSCH is not all ‘1’.
  • the redundancy version field used for PDSCH is not all ‘1’.
  • the frequency domain resource information allocation field used for PDSCH is not all ‘0’ or not all ‘1’.
  • the embodiment shown in FIG. 3 proposes that the second indication information can indicate N TCI states. How the second indication information indicates N TCI states will be described below.
  • the second indication information is carried in a first medium access control layer control element (Medium Access Control Control Element, MAC CE), and the first MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Control Element
  • the first MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of the first DCI (Downlink Control Information, DCI). That is, only the first MAC CE is sent but not the DCI.
  • the N TCI states indicated in the first 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 second indication information is carried in the second MAC CE and the second DCI
  • the second 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 second MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the second MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI. DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the second MAC CE.
  • the second 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 first DCI and the second DCI in the embodiment of the present application may be the same DCI, or the first DCI and the second DCI may be different DCI, which is not limited in the embodiment of the present application.
  • the embodiment of the present application explains how the second indication information indicates N TCI states, and in another embodiment, X TCI states among the N TCI states are used for at least one other channel/signal.
  • X is a positive integer and X is not greater than N.
  • this signal can be understood as a reference signal.
  • Other channels include channels other than the PDSCH channel.
  • other channels may also use part or all of the N TCI states for transmission, and signals may also use part or all of the N TCI states for transmission.
  • the other channels include at least one of PUCCH, PUSCH, or PDCCH. That is to say, at least one of PUCCH, PUSCH or PDCCH can use X TCI states among N TCI states.
  • At least one signal includes at least one of CSI-RS or SRS. That is to say, at least one of CSI-RS or SRS can use X TCI states among N TCI states.
  • the X TCI states in this application are a subset of the N TCI states, that is, X may be less than or equal to N.
  • X may be less than or equal to N.
  • other channels include PDCCH, or at least one signal is CSI-RS, then the X TCI states are a subset of the N TCI states.
  • the TCI status includes joint TCI status and/or downlink TCI status.
  • other information includes at least one of PUSCH or PUCCH, or at least one signal includes SRS, the X TCI states include joint TCI states and/or uplink TCI states, and the N TCI states indicated by the second indication information Including joint TCI status and/or uplink TCI status, X TCI status is a subset of N TCI status.
  • Figure 4 shows a flow chart of an information indication method provided by an exemplary embodiment of the present application, which can be applied to the terminal as shown in Figure 1.
  • the method includes at least part of the following content:
  • Step 401 The terminal receives the first instruction information sent by the network device, and determines whether the first DCI includes the first information field according to the first instruction information.
  • the first information field is used to instruct the terminal to use M TCI states to perform physical downlink shared channel PDSCH.
  • the TCI state includes at least one of the joint TCI state, the downlink TCI state and the uplink TCI state, and M is a positive integer.
  • the first DCI refers to information about network device configuration parameters for the terminal.
  • the first indication information indicates whether the first DCI includes a first information field. For example, if the first indication information is 1, it means that the first DCI includes the first information field, and if the first indication information is 0, it means that the first DCI does not include the first information field.
  • the first information field instructs the terminal to use M TCI states for PDSCH reception. That is to say, the terminal performs PDSCH reception based on the selected M TCI states.
  • the terminal receives the second indication information sent by the network device, and can determine N TCI states based on the GIA second indication information.
  • N is a positive integer, and M is not greater than N.
  • the M TCI states belong to the second indication.
  • a subset of N TCI states indicated by the information That is to say, the first information field instructs the terminal to use M TCI states among the N TCI states indicated by the second indication information for PDSCH reception, and the terminal selects M TCIs from the N TCI states indicated by the second indication information. status for PDSCH reception.
  • the second indication information is used to indicate N TCI states. That is to say, the network device sends the second indication information indicating N TCI states to the terminal. After the terminal receives the second indication information, based on the second indication information, The N TCI states configured by the network device for the terminal can be determined.
  • the N TCI states indicated by the second indication information include TCI state #1, TCI state #2, TCI state #3, TCI state #4, TCI state #5 and TCI state #6, and the M indicated by the first information field
  • the TCI states are TCI state #1, TCI state #2, TCI state #4 and TCI state #5 among the N TCI states.
  • the N TCI states indicated by the second indication information include TCI state #1 and TCI state #2
  • the M TCI states indicated by the first information field are TCI state #1 among the N TCI states.
  • the N TCI states indicated by the second indication information include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and the M TCI states indicated by the first information field are among the N TCI states.
  • TCI status #1 and TCI status #2 are among the N TCI states.
  • the TCI status includes at least one of the combined TCI status, the downlink TCI status and the uplink TCI status.
  • the joint TCI state can be used for both uplink and downlink transmission.
  • the uplink TCI status is used for uplink transmission.
  • Downlink TCI status is used for downlink transmission.
  • the network device sends first indication information to the terminal to indicate whether the first DCI includes the first information domain. Then, after the terminal receives the first indication information, it can proceed according to the first indication information. Determine whether the first DCI includes the first information field, and then determine whether the M TCI states to be used can be determined based on the first information field.
  • This application provides a solution for determining whether the control information includes an information field indicating the TCI status to be used through indication information, ensuring the accuracy of decoding the control information, thereby improving the accuracy of the determined TCI status to ensure transmission reliability.
  • the embodiment shown in Figure 4 illustrates the terminal receiving the first indication information.
  • the specific terminal will also determine whether the first DCI includes the first information domain based on the first indication information.
  • the following describes how the terminal determines whether the first DCI includes the first information domain based on the first indication information.
  • the first indication information is used to indicate the target PDSCH transmission method, and the terminal can determine whether the first information domain is included in the first DCI according to whether the first indication information indicates the target PDSCH transmission method.
  • the first indication information indicates the target PDSCH transmission method
  • the target PDSCH transmission method refers to the PDSCH transmission method that the network device indicates to the terminal and needs to adopt at least two TCI states.
  • the target PDSCH transmission method includes at least one of the following:
  • the frequency division multiplexing method A can also be represented by FDMscheme A.
  • the frequency division multiplexing method A means that the two TCI states correspond to different frequency domain resources, but correspond to the same redundancy version. In other words, the terminal can assume that different TCI states are used to receive a TB in different frequency domain resources. A PDSCH transmission opportunity.
  • the frequency division multiplexing method B can also be represented by FDMscheme B.
  • the frequency division multiplexing method B means that the two TCI states correspond to different frequency domain resources, but correspond to different redundancy versions. That is to say, the terminal can assume that different TCI states are used to receive a TB in different frequency domain resources. Two PDSCH transmission opportunities.
  • the time division multiplexing method A can also be represented by TDM scheme A.
  • the time domain multiplexing method A means that different TCI states correspond to different time domain resources.
  • the single frequency network method A can also be represented by SFN-schemeA.
  • the single-frequency network method A means that if the network device indicates at least two TCI states, the terminal assumes that the DMRS port used to transmit PDSCH is quasi-co-located with the reference signal corresponding to the at least two TCI states.
  • the single frequency network method B can also be represented by SFN-schemeB.
  • the single-frequency network method B means that if the network device indicates at least two TCI states, the terminal assumes that the DMRS port used to transmit PDSCH is quasi-colocated with the reference signal corresponding to the at least two TCI states, except for the quasi-colocation of the last TCI state.
  • the DMRS port used to transmit PDSCH corresponds to at least two CDM groups, and the corresponding TCI states of at least two CDM groups are different.
  • the terminal can determine that the first DCI includes the first information domain.
  • the embodiment of the present application takes as an example that when the terminal determines that the PDSCH transmission method indicated by the first indication information is the target PDSCH transmission method, the first DCI includes the first information domain. In another embodiment, the terminal also determines that the first DCI does not include the first information field.
  • the terminal determines that the first DCI does not include the first information domain.
  • the terminal only when the first indication information indicates the first indication information of the target PDSCH transmission method, the terminal will determine that the first DCI includes the first information domain. If the first indication information does not indicate the target PDSCH transmission method, the terminal determines that the first DCI does not include the first information field.
  • the embodiment of the present application takes as an example whether the first indication information indicates the target PDSCH transmission method.
  • the terminal may also use other methods to determine that the first DCI does not include the first information field.
  • the terminal determines that the first DCI does not include the first indication information. That is to say, if the terminal does not receive the first indication information, it means that the network device did not indicate to the terminal whether the first DCI includes the first information domain through the first indication information, and the terminal can determine that the first DCI does not include the first information domain. information domain.
  • the embodiment of the present application provides a solution for determining whether the first DCI includes the first information domain according to the PDSCH transmission method indicated by the first indication information, ensuring the reliability of determining whether the first DCI includes the first information domain and improving the reliability of the determination. This ensures the accuracy of the terminal's decoding of the first DCI, thereby ensuring the reliability of determining the PDCCH carrying the first DCI and the corresponding PDSCH transmission.
  • the embodiment shown in Figure 4 illustrates the terminal receiving the first indication information. The following describes how the terminal determines whether the first DCI includes the first information field according to the first indication information.
  • the first indication information is carried in RRC signaling, and the RRC signaling is used to indicate whether the first DCI includes the first information domain. That is to say, the RRC signaling directly carries information indicating whether the first DCI includes the first information domain. For example, the RRC signaling uses 1 bit to indicate whether the first DCI includes the information of the first information domain. If 1 bit in the RRC signaling is 1, it indicates that the first DCI includes the first information domain. If 1 bit in the RRC signaling is 0, it indicates that the first DCI includes the first information domain. For example, the RRC signaling uses enable to indicate that the first DCI includes the information of the first information domain; and/or uses disable to indicate that the first DCI does not include the information of the first information domain.
  • the terminal can determine whether the first DCI includes the first information domain based on the first indication information, which ensures the reliability of the terminal determining whether the first DCI includes the first information domain and improves the reliability of the terminal.
  • the accuracy of the terminal's decoding of the first DCI ensures the reliability of determining the PDCCH carrying the first DCI and the corresponding PDSCH transmission.
  • the first DCI includes the first information domain, and the parameters included in the first DCI will be described below.
  • the first DCI includes downlink resource allocation information, or the first DCI does not include downlink resource allocation information.
  • the downlink resource configuration information refers to information that configures resources for the terminal for downlink transmission.
  • the downlink resource allocation information includes at least one of the following:
  • the time domain resource information is used to indicate time domain resources, that is to say, the time domain resource information indicates time domain resources used for PDSCH.
  • the frequency domain resource information is used to indicate frequency domain resources, that is to say, the frequency domain resource information indicates frequency domain resources used for PDSCH.
  • HARQ Hybrid Automatic Repeat reQuest, hybrid automatic repeat request
  • the first DCI that does not include downlink resource allocation information has the following characteristics, that is, it includes at least one of the following:
  • the modulation and coding method field used for PDSCH is all ‘1’.
  • the redundancy version field used for PDSCH is all ‘1’.
  • the frequency domain resource information allocation field used for PDSCH is all ‘0’ or all ‘1’.
  • the first DCI does not include downlink resource allocation information, that is to say, the first DCI includes at least one of the above four types of information fields, which is the above special bit value.
  • the frequency domain resource information allocation field for PDSCH in the first DCI is all '0' or all '1'.
  • the embodiment of the present application takes the characteristics of the first DCI that does not include downlink resource allocation information as an example for description.
  • the first DCI including downlink resource allocation information has an opposite relationship with the above-mentioned first DCI not including downlink resource allocation information.
  • the first DCI including downlink resource allocation information has at least one of the following characteristics:
  • the modulation and coding method field used for PDSCH is not all ‘1’.
  • the redundancy version field used for PDSCH is not all ‘1’.
  • the frequency domain resource information allocation field used for PDSCH is not all ‘0’ or not all ‘1’.
  • the embodiment shown in FIG. 4 proposes that the second indication information can indicate N TCI states. How the second indication information indicates N TCI states will be described below.
  • the second indication information is carried in a first medium access control layer control element (Medium Access Control Element, MAC CE), and the first MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the first MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of the first DCI (Downlink Control Information, DCI). That is, only the first MAC CE is sent but not the DCI.
  • the N TCI states indicated in the first 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 second indication information is carried in the second MAC CE and the second DCI
  • the second 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 second MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the second MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI. DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the second MAC CE.
  • the second 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 first DCI and the second DCI in the embodiment of the present application may be the same DCI, or the first DCI and the second DCI may be different DCIs, which are not limited in the embodiment of the present application.
  • the embodiment of the present application explains how the second indication information indicates N TCI states, and in another embodiment, X TCI states among the N TCI states are used for at least one other channel/signal. Transmission, X is a positive integer, and X is not greater than N.
  • this signal can be understood as a reference signal.
  • Other channels include channels other than the PDSCH channel.
  • other channels can also use part or all of the N TCI states for transmission.
  • signals can also use part or all of the N TCI states for transmission.
  • the other channels include at least one of PUCCH, PUSCH, or PDCCH. That is to say, at least one of PUCCH, PUSCH or PDCCH can use X TCI states among N TCI states.
  • At least one signal includes at least one of CSI-RS or SRS. That is to say, at least one of CSI-RS or SRS can use X TCI states among N TCI states.
  • the X TCI states in this application are a subset of the N TCI states, that is, X may be less than or equal to N.
  • X may be less than or equal to N.
  • other channels include PDCCH, or at least one signal is CSI-RS, then the X TCI states are a subset of the N TCI states.
  • the TCI status includes joint TCI status and/or downlink TCI status.
  • other information includes at least one of PUSCH or PUCCH, or at least one signal includes SRS, the X TCI states include joint TCI states and/or uplink TCI states, and the N TCI states indicated by the second indication information Including joint TCI status and/or uplink TCI status, X TCI status is a subset of N TCI status.
  • Figure 5 shows a flow chart of an information indication method provided by an exemplary embodiment of the present application.
  • the example can be applied to the network device shown in Figure 1.
  • the method includes at least part of the following content:
  • Step 501 The network device sends first indication information to the terminal.
  • the first indication information is used by the terminal to determine whether the first DCI includes the first information field.
  • the first information field is used to instruct the terminal to use M TCI states to receive PDSCH.
  • the TCI state includes at least one of the joint TCI state, the downlink TCI state and the uplink TCI state, and M is a positive integer.
  • the first DCI refers to information about network device configuration parameters for the terminal.
  • the first DCI is DCI (Downlink Control Information, first DCI), or other types of information.
  • the first indication information indicates whether the first DCI includes a first information field.
  • the first information field instructs the terminal to use M TCI states for PDSCH transmission. That is to say, the terminal performs PDSCH reception based on M TCI states.
  • the network device will send second indication information to the terminal, using the second indication information to indicate N TCI states, N is a positive integer, and M is not greater than N, and the M TCI states belong to the second indication information indication.
  • N is a positive integer
  • M is not greater than N
  • the M TCI states belong to the second indication information indication.
  • the second indication information is used to indicate N TCI states. That is to say, the network device sends the second indication information indicating N TCI states to the terminal. After the terminal receives the second indication information, based on the second indication information, The N TCI states configured by the network device for the terminal can be determined.
  • the N TCI states indicated by the second indication information include TCI state #1, TCI state #2, TCI state #3, TCI state #4, TCI state #5 and TCI state #6, and the M indicated by the first information field
  • the TCI states are TCI state #1, TCI state #2, TCI state #4 and TCI state #5 among the N TCI states.
  • the N TCI states indicated by the second indication information include TCI state #1 and TCI state #2
  • the M TCI states indicated by the first information field are TCI state #1 among the N TCI states.
  • the N TCI states indicated by the second indication information include TCI state #1, TCI state #2, TCI state #3, and TCI state #4, and the M TCI states indicated by the first information field are among the N TCI states.
  • TCI status #1 and TCI status #2 are among the N TCI states.
  • the TCI status includes at least one of the combined TCI status, the downlink TCI status and the uplink TCI status.
  • the joint TCI state can be used for both uplink and downlink transmission.
  • the uplink TCI status is used for uplink transmission.
  • Downlink TCI status is used for downlink transmission.
  • the network device sends first indication information to the terminal to indicate whether the first DCI includes the first information domain. After receiving the first indication information, the terminal can determine whether the first DCI includes the first information domain. A first information field is included, and then it is determined whether the M TCI states used can be determined based on the first information field.
  • This application provides a solution for determining whether the control information includes an information field indicating the TCI status to be used through indication information, ensuring the accuracy of decoding the control information, thereby improving the accuracy of the determined TCI status to ensure transmission reliability.
  • the embodiment shown in Figure 5 illustrates the terminal receiving the first indication information.
  • the specific terminal will also determine whether the first DCI includes the first information domain based on the first indication information.
  • the following describes how the terminal determines whether the first DCI includes the first information domain based on the first indication information.
  • the first indication information is used to indicate the target PDSCH transmission method.
  • the first DCI when the first indication information indicates the target PDSCH transmission method, the first DCI includes the first information field. That is to say, if the PDSCH transmission method indicated by the first indication information is the target PDSCH transmission method, it means that the first DCI includes the first information domain.
  • the target PDSCH transmission method refers to the PDSCH transmission method that the network device indicates to the terminal and needs to adopt at least two TCI states.
  • the target PDSCH transmission method includes at least one of the following:
  • the frequency division multiplexing method A can also be represented by FDMscheme A.
  • the frequency division multiplexing method A means that the two TCI states correspond to different frequency domain resources, but correspond to the same redundancy version. In other words, the terminal can assume that different TCI states are used to receive a TB in different frequency domain resources. A PDSCH transmission opportunity.
  • the frequency division multiplexing method B can also be represented by FDMscheme B.
  • the frequency division multiplexing method B means that the two TCI states correspond to different frequency domain resources, but correspond to different redundancy versions. That is to say, the terminal can assume that different TCI states are used to receive a TB in different frequency domain resources. Two PDSCH transmission opportunities.
  • the time division multiplexing method A can also be represented by TDM scheme A.
  • the time domain multiplexing method A means that different TCI states correspond to different time domain resources.
  • the single frequency network method A can also be represented by SFN-schemeA.
  • the single-frequency network method A means that if the network device indicates at least two TCI states, the terminal assumes that the DMRS port used to transmit PDSCH is quasi-co-located with the reference signal corresponding to the at least two TCI states.
  • the single frequency network method B can also be represented by SFN-schemeB.
  • the single-frequency network method B means that if the network device indicates at least two TCI states, the terminal assumes that the DMRS port used to transmit PDSCH is quasi-colocated with the reference signal corresponding to the at least two TCI states, except for the quasi-colocation of the last TCI state.
  • the DMRS port used to transmit PDSCH corresponds to at least two CDM groups, and the corresponding TCI states of at least two CDM groups are different.
  • the terminal can determine that the first DCI includes the first information domain.
  • the embodiment of the present application takes as an example that when the terminal determines that the PDSCH transmission method indicated by the first indication information is the target PDSCH transmission method, the first DCI includes the first information domain. In another embodiment, the terminal also determines that the first DCI does not include the first information field.
  • the embodiment of the present application provides a solution for determining whether the first DCI includes the first information domain according to the PDSCH transmission method indicated by the first indication information, ensuring the reliability of determining whether the first DCI includes the first information domain and improving the reliability of the determination. This ensures the accuracy of the terminal's decoding of the first DCI, thereby ensuring the reliability of determining the PDCCH carrying the first DCI and the corresponding PDSCH transmission.
  • the embodiment shown in Figure 5 illustrates the network device sending the first indication information. The following describes how to determine whether the first DCI includes the first information field based on the first indication information.
  • the first indication information is carried in RRC signaling, and the RRC signaling is used to indicate whether the first DCI includes the first information domain. That is to say, the RRC signaling directly carries information indicating whether the first DCI includes the first information domain. For example, the RRC signaling uses 1 bit to indicate whether the first DCI includes the information of the first information domain. If 1 bit in the RRC signaling is 1, it indicates that the first DCI includes the first information domain. If 1 bit in the RRC signaling is 0, it indicates that the first DCI includes the first information domain. For example, the RRC signaling uses enable to indicate that the first DCI includes the information of the first information domain; and/or uses disable to indicate that the first DCI does not include the information of the first information domain.
  • whether the first DCI includes the first information domain can be determined based on the first indication information, ensuring the reliability of the terminal in determining whether the first DCI includes the first information domain, and improving the terminal's reliability
  • the accuracy of decoding the first DCI ensures the reliability of determining the PDCCH carrying the first DCI and the corresponding PDSCH transmission.
  • the first DCI includes the first information domain, and the parameters included in the first DCI will be described below.
  • the first DCI includes downlink resource allocation information, or the first DCI does not include downlink resource allocation information.
  • the downlink resource configuration information refers to information that configures resources for the terminal for downlink transmission.
  • the downlink resource allocation information includes at least one of the following:
  • the time domain resource information is used to indicate time domain resources, that is to say, the time domain resource information indicates time domain resources used for PDSCH.
  • the frequency domain resource information is used to indicate frequency domain resources, that is to say, the frequency domain resource information indicates frequency domain resources used for PDSCH.
  • HARQ Hybrid Automatic Repeat reQuest, hybrid automatic repeat request
  • the first DCI that does not include downlink resource allocation information has the following characteristics, that is, it includes at least one of the following:
  • the modulation and coding method field used for PDSCH is all ‘1’.
  • the redundancy version field used for PDSCH is all ‘1’.
  • the frequency domain resource information allocation field used for PDSCH is all ‘0’ or all ‘1’.
  • the first DCI does not include downlink resource allocation information, that is to say, the first DCI includes at least one of the above four types of information fields, which is the above special bit value.
  • the frequency domain resource information allocation field for PDSCH in the first DCI is all '0' or all '1'.
  • the embodiment of the present application takes the characteristics of the first DCI that does not include downlink resource allocation information as an example for description.
  • the first DCI including downlink resource allocation information has an opposite relationship with the above-mentioned first DCI not including downlink resource allocation information.
  • the first DCI including downlink resource allocation information has at least one of the following characteristics:
  • the modulation and coding method field used for PDSCH is not all ‘1’.
  • the redundancy version field used for PDSCH is not all ‘1’.
  • the frequency domain resource information allocation field used for PDSCH is not all ‘0’ or not all ‘1’.
  • the embodiment shown in FIG. 5 proposes that the second indication information can indicate N TCI states. How the second indication information indicates N TCI states will be described below.
  • the second indication information is carried in a first medium access control layer control element (Medium Access Control Element, MAC CE), and the first MAC CE is used to indicate N TCI states.
  • MAC CE Medium Access Control Element
  • the first MAC CE is used to indicate N TCI states corresponding to one code point in the TCI domain of the first DCI (Downlink Control Information, DCI). That is, only the first MAC CE is sent but not the DCI.
  • the N TCI states indicated in the first 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 second indication information is carried in the second MAC CE and the second DCI
  • the second 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 second MAC CE and the second DCI are used to indicate the second indication information at the same time.
  • the second MAC CE indicates N TCI states respectively corresponding to at least two code points in the TCI domain of the second DCI. DCI is used to indicate the code point, and then the N TCI states corresponding to the code point are obtained by querying the second MAC CE.
  • the second 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 first DCI and the second DCI in the embodiment of the present application may be the same DCI, or the first DCI and the second DCI may be different DCIs, which are not limited in the embodiment of the present application.
  • the embodiment of the present application explains how the second indication information indicates N TCI states, and in another embodiment, X TCI states among the N TCI states are used for at least one other channel/signal.
  • X is a positive integer and X is not greater than N.
  • this signal can be understood as a reference signal.
  • Other channels include channels other than the PDSCH channel.
  • other channels may also use part or all of the N TCI states for transmission, and signals may also use part or all of the N TCI states for transmission.
  • the other channels include at least one of PUCCH, PUSCH, or PDCCH. That is to say, at least one of PUCCH, PUSCH or PDCCH can use X TCI states among N TCI states.
  • At least one signal includes at least one of CSI-RS or SRS. That is to say, at least one of CSI-RS or SRS can use X TCI states among N TCI states.
  • the X TCI states in this application are a subset of the N TCI states, that is, X may be less than or equal to N.
  • X may be less than or equal to N.
  • other channels include PDCCH, or at least one signal is CSI-RS, then the X TCI states are a subset of the N TCI states.
  • the TCI status includes joint TCI status and/or downlink TCI status.
  • other information includes at least one of PUSCH or PUCCH, or at least one signal includes SRS, the X TCI states include joint TCI states and/or uplink TCI states, and the N TCI states indicated by the second indication information Including joint TCI status and/or uplink TCI status, X TCI status is a subset of N TCI status.
  • Figure 6 shows a block diagram of an information indicating device provided by an exemplary embodiment of the present application.
  • the device includes:
  • the receiving module 601 is used to receive the first indication information sent by the network device
  • the processing module 602 is configured to determine whether the first DCI includes a first information field according to the first indication information.
  • the first information field is used to instruct the terminal to use M TCI states to receive the PDSCH.
  • the TCI The status includes at least one of the joint TCI status, the downlink TCI status, and the uplink TCI status, and M is a positive integer.
  • the first indication information is used to indicate the target PDSCH transmission method; the processing module 602 is used to determine the first DCI when the first indication information indicates the target PDSCH transmission method. includes the first information field.
  • the target transmission method includes at least one of the following:
  • the processing module 602 is configured to determine that the first DCI does not include the first information domain when the first indication information does not indicate the target PDSCH transmission method.
  • the processing module 602 is configured to determine that the first DCI does not include the first information domain when the first indication information is not received.
  • the first indication information is carried in RRC signaling, and the RRC signaling is used to indicate whether the first DCI includes the first information domain.
  • the first DCI includes downlink resource allocation information or does not include the downlink resource allocation information.
  • the first DCI that does not include the downlink resource allocation information includes at least one of the following:
  • the modulation and coding method field used for PDSCH is all ‘1’;
  • the redundancy version field used for PDSCH is all ‘1’;
  • the new data indication NDI used to indicate whether the PDSCH is new data is ‘0’;
  • the frequency domain resource information allocation field used for PDSCH is all '0' or all '1'.
  • the receiving module 601 is also used to receive second indication information sent by the network device, where the second indication information is used to indicate N TCI states, N is a positive integer, and M is not greater than N;
  • the M TCI states belong to a subset of the N TCI states indicated by the second indication information.
  • the second indication information is carried in the first media access control layer control element MAC CE, and the first MAC CE is used to indicate the N TCI states; or,
  • the second indication information is carried in the second MAC CE and the second DCI.
  • the second MAC CE is used to indicate the transmission configuration of the second DCI and indicates N TCI states corresponding to at least two code points in the TCI domain.
  • the second DCI is used to indicate one code point among the at least two code points.
  • X TCI states among the N TCI states are used for transmission of at least one other channel/signal, X is a positive integer, and X is not greater than N.
  • the at least one other channel includes at least one of the following:
  • the at least one signal includes at least one of the following:
  • the X TCI states are a subset of the N TCI states.
  • Figure 7 shows a block diagram of an information indicating device provided by an exemplary embodiment of the present application.
  • the device includes:
  • Sending module 701 configured to send first indication information to the terminal.
  • the first indication information is used by the terminal to determine whether the first DCI includes a first information field.
  • the first information field is used to instruct the terminal to use M
  • the PDSCH is received in a TCI state, which includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state, and M is a positive integer.
  • the first indication information is used to indicate a PDSCH transmission method; the first indication information indicates a target PDSCH transmission method for the terminal to determine that the first DCI includes the first information domain.
  • the target transmission method includes at least one of the following:
  • the first indication information is carried in RRC signaling, and the RRC signaling is used to indicate whether the first information domain is included in the first DCI.
  • the first DCI includes downlink resource allocation information or does not include the downlink resource allocation information.
  • the first DCI that does not include the downlink resource allocation information includes at least one of the following:
  • the modulation and coding method field used for PDSCH is all ‘1’;
  • the redundancy version field used for PDSCH is all ‘1’;
  • the new data indication NDI used to indicate whether the PDSCH is new data is ‘0’;
  • the frequency domain resource information allocation field used for PDSCH is all '0' or all '1'.
  • the sending module 701 is configured to send second indication information to the terminal, the second indication information is used to indicate N TCI states, N is a positive integer, and M is not greater than N; the M The TCI states belong to the subset of N TCI states indicated by the second indication information.
  • the second indication information is carried in the first media access control layer control element MAC CE, and the first MAC CE is used to indicate the N TCI states; or,
  • the second indication information is carried in the second MAC CE and the second DCI.
  • the second 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 the at least two code points.
  • X TCI states among the N TCI states are used for transmission of at least one other channel/other signal, X is a positive integer, and X is not greater than N.
  • the at least one other channel includes at least one of the following:
  • the at least one signal includes at least one of the following:
  • the X TCI states are a subset of the N TCI states.
  • Figure 8 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • the communication device includes: a processor 801, a receiver 802, a transmitter 803, a memory 804 and a bus 805.
  • the processor 801 includes one or more processing cores.
  • the processor 801 executes various functional applications and information processing by running software programs and modules.
  • the receiver 802 and the transmitter 803 can be implemented as a communication component, and the communication component can be a communication chip.
  • Memory 804 is connected to processor 801 through bus 805.
  • the memory 804 can be used to store at least one program code, and the processor 801 is used to execute the at least one program code to implement each step in the above method embodiment.
  • Memory 804 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.
  • 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. Information indication method.
  • a communication system in an exemplary embodiment, includes a terminal and a network device.
  • the terminal is used to implement the information indication method as described above.
  • the network device is used to implement the information indication method as described above. information indication method.
  • a computer program product is provided.
  • the computer program product is executed by a processor of a terminal or a network device, it is used to implement the information indication method provided by each of the above method embodiments.

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Abstract

本申请公开了一种信息指示方法、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指示信息，根据所述第一指示信息确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行物理下行共享信道PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。本申请提供了一种通过指示信息来确定控制信息中是否包括指示使用的TCI状态的信息域的方案，保证对控制信息解码的准确性，进而提高确定的TCI状态的准确性，以保证传输的可靠性。

Description

信息指示方法、装置、设备及存储介质 技术领域
本申请涉及移动通信领域，特别涉及一种信息指示方法、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，准共站址)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jointTCIstate，则该joint TCI state可以同时用于上行传输和下行传输。
目前提出了一种在网络设备发送的控制信息中引入新的指示域来指示PDSCH使用的TCI状态，但是终端如何确定该指示域是否存在成为亟需解决的问题。
发明内容
本申请实施例提供了一种信息指示方法、装置、设备及存储介质，保证对控 制信息解码的准确性，进而提高确定的TCI状态的准确性，以保证传输的可靠性。所述技术方案如下：
根据本申请的第一方面，提供了一种信息指示方法，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指示信息，根据所述第一指示信息确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
根据本申请的第二方面，提供了一种信息指示方法，所述方法由网络设备执行，所述方法包括：
向终端发送第一指示信息，所述第一指示信息用于所述终端确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
根据本申请的第三方面，提供了一种信息指示装置，所述装置包括：
接收模块，用于接收网络设备发送的第一指示信息；
处理模块，用于根据所述第一指示信息确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
根据本申请的第四方面，提供了一种信息指示装置，所述装置包括：
发送模块，用于向终端发送第一指示信息，所述第一指示信息用于所述终端确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
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信息指示方法。
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信息指示方法。
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信息指示方法，所述网络设备用于实现如上述第二方面所述的信息指示方法。
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信息指示方法。
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信息指示方法。
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信息指示方法。
本申请提供了一种通过指示信息来确定控制信息中是否包括指示使用的TCI状态的信息域的方案，保证对控制信息解码的准确性，进而提高确定的TCI状态的准确性，以保证传输的可靠性。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出了本申请一个示例性实施例提供的通信系统的框图；
图2示出了本申请一个示例性实施例提供的另一种通信系统的框图；
图3示出了本申请一个示例性实施例提供的信息指示方法的流程图；
图4示出了本申请一个示例性实施例提供的信息指示方法的流程图；
图5示出了本申请一个示例性实施例提供的信息指示方法的流程图；
图6示出了本申请一个示例性实施例提供的一种信息指示装置的框图；
图7示出了本申请一个示例性实施例提供的一种信息指示装置的框图；
图8示出了本申请一个示例性实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请 实施方式作进一步地详细描述。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也是旨在包括多数形式，除非上下文清楚地表示其它含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本申请可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本申请范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，例如，在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
需要说明的是，本申请所涉及的信息(包括但不限于用户设备信息、用户个人信息等)、数据(包括但不限于用于分析的数据、存储的数据、展示的数据等)以及信号，均为经用户授权或者经过各方充分授权的，且相关数据的收集、使用和处理需要遵守相关国家和地区的相关法律法规和标准。
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。
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、PDSCH、PUSCH或PUCCH中的至少一项。参考信号包括CSI-RS、SRS、PRS或TRS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(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 TCIstate，则该joint TCI state可以同时用于上行传输和下行传输。
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的M-TRP以及S-TRP的动态切换，因此提出一种在第一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信息指示方法的流程图，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301：网络设备向终端发送第一指示信息，第一指示信息用于终端确定第一DCI中是否包括第一信息域，第一信息域用于指示终端使用M个TCI状态进行PDSCH的接收，TCI状态包括联合TCI状态，下行TCI状态和上行TCI状态中的至少一项，M为正整数。
步骤302：终端接收网络设备发送的第一指示信息，根据第一指示信息确定 第一DCI中是否包括第一信息域，第一信息域用于指示终端使用M个TCI状态进行物理下行共享信道PDSCH的接收，TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
其中，该第一DCI是指网络设备为终端配置参数的信息。
该第一指示信息指示该第一DCI中是否包括第一信息域。例如，若该第一指示信息为1，说明第一DCI中包括第一信息域，而若该第一指示信息为0，说明第一DCI中不包括第一信息域。
第一信息域是指示终端使用M个TCI状态进行PDSCH接收。也就是说由终端基于选择的M个TCI状态进行PDSCH接收。
在一些实施例中，网络设备会向终端发送第二指示信息，通过该第二指示信息指示N个TCI状态，则终端接收网络设备发送的第二指示信息，基于GIA第二指示信息即可确定N个TCI状态，N为正整数，且M不大于N，M个TCI状态属于第二指示信息指示的N个TCI状态的子集。也就说是，第一信息域指示终端使用第二指示信息指示的N个TCI状态中的M个TCI状态进行PDSCH接收，终端是从第二指示信息指示的N个TCI状态中选择M个TCI状态进行PDSCH接收。
该第二指示信息用于指示N个TCI状态，也就是说，网络设备向终端发送指示N个TCI状态的第二指示信息，终端接收到该第二指示信息后，基于该第二指示信息即可确定网络设备为终端配置的N个TCI状态。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3、TCI状态#4、TCI状态#5和TCI状态#6，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1、TCI状态#2、TCI状态#4和TCI状态#5。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1和TCI状态#2，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3、和TCI状态#4，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1和TCI状态#2。
TCI状态包括联合TCI状态，下行TCI状态和上行TCI状态中的至少一项。联合TCI状态既可以用于上行传输，也可以用于下行传输。上行TCI状态用于上行传输。下行TCI状态用于下行传输。
在本申请实施例中，网络设备向终端发送用于终端确定第一DCI中是否包括第一信息域的第一指示信息，则终端接收到该第一指示信息后，即可根据该第一指示信息确定第一DCI中是否包括第一信息域，进而确定是否可以基于第一信息域确定使用的M个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。
本申请提供了一种通过指示信息来确定控制信息中是否包括指示使用的TCI状态的信息域的方案，保证对控制信息解码的准确性，进而提高确定的TCI状态的准确性，以保证传输的可靠性。
图3所示实施例对终端接收第一指示信息进行说明。而具体的终端还会根据第一指示信息确定第一DCI中是否包括第一信息域，下面对终端如何根据第一指示信息确定第一DCI中是否包括第一信息域进行说明。
在一些实施例中，该第一指示信息用于指示目标PDSCH传输方法，则终端可以根据第一指示信息是否指示目标PDSCH传输方法确定第一DCI中是否包括第一信息域。
其中，在第一指示信息指示目标PDSCH传输方法的情况下，确定第一DCI中包括第一信息域。也就是说，若第一指示信息指示的PDSCH传输方法为目标PDSCH传输方法，则说明第一DCI中包括第一信息域。
其中，该目标PDSCH传输方法是指网络设备为终端指示的需要采用至少两个TCI状态的PDSCH传输方法。
可选地，该目标PDSCH传输方法包括以下至少一项：
(1)频分复用方法A。
其中，该频分复用方法A还可以采用FDMscheme A表示。该频分复用方法A是指两个TCI状态对应不同的频域资源，但是对应同样的冗余版本，也就是说，终端可以假设使用不同的TCI状态在不同的频域资源接收一个TB的一个PDSCH传输时机。
(2)频分复用方法B。
其中，该频分复用方法B还可以采用FDMscheme B表示。该频分复用方法B是指两个TCI状态对应不同的频域资源，但是对应不同的冗余版本，也就是 说，终端可以假设使用不同的TCI状态在不同的频域资源接收一个TB的两个PDSCH传输时机。
(3)时分复用方法A。
其中，该时分复用方法A还可以采用TDM scheme A表示。该时域复用方法A是指不同的TCI state对应不同的时域资源。
(4)单频网络方法A。
其中，该单频网络方法A还可以采用SFN-schemeA表示。该单频网络方法A是指若网络设备指示至少两个TCI状态，终端假设用于传输PDSCH的DMRS端口与该至少两个TCI状态对应的参考信号准共址。
(5)单频网络方法B。
其中，该单频网络方法B还可以采用SFN-schemeB表示。该单频网络方法B是指若网络设备指示至少两个TCI状态，终端假设用于传输PDSCH的DMRS端口与该至少两个TCI状态对应的参考信号准共址，除了最后一个TCI状态的准共址参数：{多普勒偏移(Doppler shift)、多普勒扩展(Doppler spread)}之外。
(6)基于两个码分复用CDM组的传输方法。
用于传输PDSCH的DMRS端口对应至少两个CDM(Code Division Multiplexing，CDM)组，至少两个CDM组对应的TCI状态不同。
在本申请实施例中，若终端确定第一指示信息指示的PDSCH传输方法为上述6种PDSCH传输方法中的任一种时，终端即可确定第一DCI中包括第一信息域。
需要说明的是，本申请实施例是以终端在确定第一指示信息指示的PDSCH传输方法为目标PDSCH传输方法时，确定第一DCI包括第一信息域为例进行说明。而在另一实施例中，终端还会确定第一DCI不包括第一信息域。
可选地，在第一指示信息未指示目标PDSCH传输方法的情况下，终端确定第一DCI中不包括第一信息域。
在本申请实施例中，只有在第一指示信息指示目标PDSCH传输方法的第一指示信息的情况下，终端才会确定第一DCI中包括第一信息域。而若第一指示信息未指示目标PDSCH传输方法，则终端确定第一DCI中不包括第一信息域。
需要说明的是，本申请实施例是以第一指示信息是否指示目标PDSCH传输方法为例进行说明。而在另一实施例中，终端还可以采用其他方式确定第一DCI 中不包括第一信息域。
可选地，在未收到第一指示信息的情况下，终端确定第一DCI中不包括第一指示信息。也就是说，如果终端未收到第一指示信息，则说明网络设备未通过第一指示信息向终端指示第一DCI中是否包括第一信息域，则终端可以确定第一DCI中不包括第一信息域。
本申请实施例提供了一种根据第一指示信息指示的PDSCH传输方法确定第一DCI中是否包括第一信息域的方案，保证了确定第一DCI中是否包括第一信息域的可靠性，提高了终端对第一DCI解码的准确性，进而保证确定承载该第一DCI的PDCCH和相应的PDSCH传输的可靠性。
图3所示实施例对终端接收第一指示信息进行说明。下面对终端如何根据第一指示信息确定第一DCI中是否包括第一信息域进行说明。
在一些实施例中，该第一指示信息携带在RRC(Radio Resource Control，无线资源控制)信令，该RRC信令用于指示第一DCI中是否包括第一信息域。也就是说，该RRC信令中直接携带用于指示第一DCI中是否包括第一信息域的信息。例如，该RRC信令通过1比特来指示第一DCI中是否包括第一信息域的信息。若RRC信令中的1比特为1，则指示第一DCI中包括第一信息域，若RRC信令中的1比特为0，则指示第一DCI中包括第一信息域。例如，该RRC信令通过enable(启用)来指示第一DCI中包括第一信息域的信息；和/或通过disable(禁用)来指示第一DCI中不包括第一信息域的信息。
本申请实施例提供的方案中，终端根据该第一指示信息即可确定第一DCI中是否包括第一信息域，保证了终端确定第一DCI中是否包括第一信息域的可靠性，提高了终端对第一DCI解码的准确性，进而保证确定承载该第一DCI的PDCCH和相应的PDSCH接收的可靠性。
图3所示实施例中提出第一DCI中是否包括第一信息域，而下面对第一DCI中包括的参数进行说明。
在一些实施例中，该第一DCI包括下行资源分配信息，或者，该第一DCI不包括下行资源分配信息。
其中，该下行资源配置信息是指为终端配置用于下行传输的资源的信息。
可选地，该下行资源分配信息包括以下至少一项：
(1)用于PDSCH的时域资源信息。
其中，该时域资源信息用于指示时域资源，也就是说该时域资源信息指示用于PDSCH的时域资源。
(2)用于PDSCH的调制编码方式。
(3)用于PDSCH的冗余版本。
(4)用于PDSCH的频域资源信息。
其中，该频域资源信息用于指示频域资源，也就是说该频域资源信息指示用于PDSCH的频域资源。
(5)HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)processing number(进程编号)。
需要说明的是，本申请实施例是以上述举例的几种参数为例进行说明，而本申请不限于上述举例的几种参数，还可以包括其他相关参数，本申请实施例不做限定。
在一些实施例中，而不包括下行资源分配信息的第一DCI具有以下特征，即包括以下至少一项：
(1)用于PDSCH的调制编码方式域为全‘1’。
(2)用于PDSCH的冗余版本域为全‘1’。
(3)用于指示PDSCH是否为新数据的NDI(New Data indicator，新数据指示)为‘0’。
(4)用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
本申请实施例中，第一DCI不包括下行资源分配信息，就是说该第一DCI包括上述4种信息域中的至少一项为上述特殊比特值。例如，第一DCI中用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
需要说明的是，本申请实施例是以不包括下行资源分配信息的第一DCI具有的特征为例进行说明。而在另一些实施例中，包括下行资源分配信息的第一DCI与上述不包括下行资源分配信息的第一DCI的特征为相反关系。
可选地，包括下行资源分配信息的第一DCI具有以下至少一项特征：
(1)用于PDSCH的调制编码方式域为非全‘1’。
(2)用于PDSCH的冗余版本域为非全‘1’。
(3)用于指示PDSCH是否为新数据的NDI(New Data indicator，新数据指示)为非‘0’。
(4)用于PDSCH的频域资源信息分配域为非全‘0’或非全‘1’。
图3所示实施例提出第二指示信息可以指示N个TCI状态，下面对第二指示信息如何指示N个TCI状态进行说明。
在一些实施例中，第二指示信息携带在第一媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第一MAC CE用于指示N个TCI状态。
可选地，第一MAC CE用于指示第一DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第一MAC CE但不发送DCI，该第一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，第二指示信息携带在第二MAC CE和第二DCI中，第二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，第二MAC CE和第二DCI同时用于指示第二指示信息，该第二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，进而通过查询第二MAC CE查询得到该码点对应的N个TCI状态。此时第二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。
其中，本申请实施例中的第一DCI与第二DCI可以为相同的DCI，或者，第一DCI与第二DCI可以为不同的DCI，本申请实施例不作限定。
需要说明的是，本申请实施例对第二指示信息如何指示N个TCI状态进行说明，而在另一实施例中，N个TCI状态中的X个TCI状态用于至少一个其它信道/信号的传输，X为正整数，X不大于N。
其中，该信号可以理解为参考信号。其它信道包括除PDSCH信道以外的信道。
在本申请实施例中，其它信道也可以采用N个TCI状态中的部分或全部TCI状态进行传输，另外信号也可以采用N个TCI状态中的部分或全部TCI状态进行传输。
在一些实施例中，其它信道包括PUCCH、PUSCH或PDCCH中的至少一项。 也就是说，PUCCH、PUSCH或PDCCH中的至少一项均可以使用N个TCI状态中的X个TCI状态。
在一些实施例中，至少一个信号包括CSI-RS或SRS中的至少一项。也就是说，CSI-RS或SRS中的至少一项均可以使用N个TCI状态中的X个TCI状态。
需要说明的是，本申请中的X个TCI状态为N个TCI状态的子集，即X可以小于或等于N。下面，具体对X个TCI状态进行说明。
在一些实施例中，其他信道包括PDCCH，或者至少一个信号为CSI-RS，则X个TCI状态为N个TCI状态的子集。该TCI状态包括联合TCI状态和/或下行TCI状态。
在一些实施例中，其他信息包括PUSCH或PUCCH中的至少一项，或者至少一个信号包括SRS，X个TCI状态包括联合TCI状态和/或上行TCI状态，第二指示信息指示的N个TCI状态包括联合TCI状态和/或上行TCI状态，X个TCI状态为N个TCI状态的子集。
需要说明的是，上述实施例可以拆分为新实施例，或与其他实施例互相组合为新实施例，本申请对实施例之间的组合不做限定。
图4示出了本申请一个示例性实施例提供的信息指示方法的流程图，示例性的可以应用于如图1所示的终端中，该方法包括以下内容中的至少部分内容：
步骤401：终端接收网络设备发送的第一指示信息，根据第一指示信息确定第一DCI中是否包括第一信息域，第一信息域用于指示终端使用M个TCI状态进行物理下行共享信道PDSCH的接收，TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
其中，该第一DCI是指网络设备为终端配置参数的信息。
该第一指示信息指示该第一DCI中是否包括第一信息域。例如，若该第一指示信息为1，说明第一DCI中包括第一信息域，而若该第一指示信息为0，说明第一DCI中不包括第一信息域。
第一信息域是指示终端使用M个TCI状态进行PDSCH接收。也就是说由终端基于选择的M个TCI状态进行PDSCH接收。
在一些实施例中，终端接收网络设备发送的第二指示信息，基于GIA第二指示信息即可确定N个TCI状态，N为正整数，且M不大于N，M个TCI状态 属于第二指示信息指示的N个TCI状态的子集。也就说是，第一信息域指示终端使用第二指示信息指示的N个TCI状态中的M个TCI状态进行PDSCH接收，终端是从第二指示信息指示的N个TCI状态中选择M个TCI状态进行PDSCH接收。
该第二指示信息用于指示N个TCI状态，也就是说，网络设备向终端发送指示N个TCI状态的第二指示信息，终端接收到该第二指示信息后，基于该第二指示信息即可确定网络设备为终端配置的N个TCI状态。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3、TCI状态#4、TCI状态#5和TCI状态#6，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1、TCI状态#2、TCI状态#4和TCI状态#5。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1和TCI状态#2，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3、和TCI状态#4，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1和TCI状态#2。
TCI状态包括联合TCI状态，下行TCI状态和上行TCI状态中的至少一项。联合TCI状态既可以用于上行传输，也可以用于下行传输。上行TCI状态用于上行传输。下行TCI状态用于下行传输。
在本申请实施例中，网络设备向终端发送用于指示第一DCI中是否包括第一信息域的第一指示信息，则终端接收到该第一指示信息后，即可根据该第一指示信息确定第一DCI中是否包括第一信息域，进而确定是否可以基于第一信息域确定使用的M个TCI状态。
本申请提供了一种通过指示信息来确定控制信息中是否包括指示使用的TCI状态的信息域的方案，保证对控制信息解码的准确性，进而提高确定的TCI状态的准确性，以保证传输的可靠性。
图4所示实施例对终端接收第一指示信息进行说明。而具体的终端还会根据第一指示信息确定第一DCI中是否包括第一信息域，下面对终端如何根据第一指示信息确定第一DCI中是否包括第一信息域进行说明。
在一些实施例中，该第一指示信息用于指示目标PDSCH传输方法，则终端可以根据第一指示信息是否指示目标PDSCH传输方法确定第一DCI中是否包 括第一信息域。
其中，在第一指示信息指示目标PDSCH传输方法的情况下，确定第一DCI中包括第一信息域。也就是说，若第一指示信息指示的PDSCH传输方法为目标PDSCH传输方法，则说明第一DCI中包括第一信息域。
其中，该目标PDSCH传输方法是指网络设备为终端指示的需要采用至少两个TCI状态的PDSCH传输方法。
可选地，该目标PDSCH传输方法包括以下至少一项：
(1)频分复用方法A。
其中，该频分复用方法A还可以采用FDMscheme A表示。该频分复用方法A是指两个TCI状态对应不同的频域资源，但是对应同样的冗余版本，也就是说，终端可以假设使用不同的TCI状态在不同的频域资源接收一个TB的一个PDSCH传输时机。
(2)频分复用方法B。
其中，该频分复用方法B还可以采用FDMscheme B表示。该频分复用方法B是指两个TCI状态对应不同的频域资源，但是对应不同的冗余版本，也就是说，终端可以假设使用不同的TCI状态在不同的频域资源接收一个TB的两个PDSCH传输时机。
(3)时分复用方法A。
其中，该时分复用方法A还可以采用TDM scheme A表示。该时域复用方法A是指不同的TCI state对应不同的时域资源。
(4)单频网络方法A。
其中，该单频网络方法A还可以采用SFN-schemeA表示。该单频网络方法A是指若网络设备指示至少两个TCI状态，终端假设用于传输PDSCH的DMRS端口与该至少两个TCI状态对应的参考信号准共址。
(5)单频网络方法B。
其中，该单频网络方法B还可以采用SFN-schemeB表示。该单频网络方法B是指若网络设备指示至少两个TCI状态，终端假设用于传输PDSCH的DMRS端口与该至少两个TCI状态对应的参考信号准共址，除了最后一个TCI状态的准共址参数：{多普勒偏移(Doppler shift)、多普勒扩展(Doppler spread)}之外。
(6)基于两个码分复用CDM组的传输方法。
用于传输PDSCH的DMRS端口对应至少两个CDM组，至少两个CDM组对应的TCI状态不同。
在本申请实施例中，若终端确定第一指示信息指示的PDSCH传输方法为上述6种PDSCH传输方法中的任一种时，终端即可确定第一DCI中包括第一信息域。
需要说明的是，本申请实施例是以终端在确定第一指示信息指示的PDSCH传输方法为目标PDSCH传输方法时，确定第一DCI包括第一信息域为例进行说明。而在另一实施例中，终端还会确定第一DCI不包括第一信息域。
可选地，在第一指示信息未指示目标PDSCH传输方法的情况下，终端确定第一DCI中不包括第一信息域。
在本申请实施例中，只有在第一指示信息指示目标PDSCH传输方法的第一指示信息的情况下，终端才会确定第一DCI中包括第一信息域。而若第一指示信息未指示目标PDSCH传输方法，则终端确定第一DCI中不包括第一信息域。
需要说明的是，本申请实施例是以第一指示信息是否指示目标PDSCH传输方法为例进行说明。而在另一实施例中，终端还可以采用其他方式确定第一DCI中不包括第一信息域。
可选地，在未收到第一指示信息的情况下，终端确定第一DCI中不包括第一指示信息。也就是说，如果终端未收到第一指示信息，则说明网络设备未通过第一指示信息向终端指示第一DCI中是否包括第一信息域，则终端可以确定第一DCI中不包括第一信息域。
本申请实施例提供了一种根据第一指示信息指示的PDSCH传输方法确定第一DCI中是否包括第一信息域的方案，保证了确定第一DCI中是否包括第一信息域的可靠性，提高了终端对第一DCI解码的准确性，进而保证确定承载该第一DCI的PDCCH和相应的PDSCH传输的可靠性。
图4所示实施例对终端接收第一指示信息进行说明。下面对终端如何根据第一指示信息确定第一DCI中是否包括第一信息域进行说明。
在一些实施例中，该第一指示信息携带在RRC信令，该RRC信令用于指示第一DCI中是否包括第一信息域。也就是说，该RRC信令中直接携带用于指示第一DCI中是否包括第一信息域的信息。例如，该RRC信令通过1比特来指示第一DCI中是否包括第一信息域的信息。若RRC信令中的1比特为1，则指示第一DCI中包括第一信息域，若RRC信令中的1比特为0，则指示第一DCI 中包括第一信息域。例如，该RRC信令通过enable(启用)来指示第一DCI中包括第一信息域的信息；和/或通过disable(禁用)来指示第一DCI中不包括第一信息域的信息。
本申请实施例提供的方案中，终端根据该第一指示信息即可确定第一DCI中是否包括第一信息域，保证了终端确定第一DCI中是否包括第一信息域的可靠性，提高了终端对第一DCI解码的准确性，进而保证确定承载该第一DCI的PDCCH和相应的PDSCH传输的可靠性。
图4所示实施例中提出第一DCI中是否包括第一信息域，而下面对第一DCI中包括的参数进行说明。
在一些实施例中，该第一DCI包括下行资源分配信息，或者，该第一DCI不包括下行资源分配信息。
其中，该下行资源配置信息是指为终端配置用于下行传输的资源的信息。
可选地，该下行资源分配信息包括以下至少一项：
(1)用于PDSCH的时域资源信息。
其中，该时域资源信息用于指示时域资源，也就是说该时域资源信息指示用于PDSCH的时域资源。
(2)用于PDSCH的调制编码方式域。
(3)用于PDSCH的冗余版本。
(4)用于PDSCH的频域资源信息。
其中，该频域资源信息用于指示频域资源，也就是说该频域资源信息指示用于PDSCH的频域资源。
(5)HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)processing number(进程编号)。
需要说明的是，本申请实施例是以上述举例的几种参数为例进行说明，而本申请不限于上述举例的几种参数，还可以包括其他相关参数，本申请实施例不做限定。
在一些实施例中，而不包括下行资源分配信息的第一DCI具有以下特征，即包括以下至少一项：
(1)用于PDSCH的调制编码方式域为全‘1’。
(2)用于PDSCH的冗余版本域为全‘1’。
(3)用于指示PDSCH是否为新数据的NDI(New Data indicator，新数据 指示)为‘0’。
(4)用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
本申请实施例中，第一DCI不包括下行资源分配信息，就是说该第一DCI包括上述4种信息域中的至少一项为上述特殊比特值。例如，第一DCI中用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
需要说明的是，本申请实施例是以不包括下行资源分配信息的第一DCI具有的特征为例进行说明。而在另一些实施例中，包括下行资源分配信息的第一DCI与上述不包括下行资源分配信息的第一DCI的特征为相反关系。
可选地，包括下行资源分配信息的第一DCI具有以下至少一项特征：
(1)用于PDSCH的调制编码方式域为非全‘1’。
(2)用于PDSCH的冗余版本域为非全‘1’。
(3)用于指示PDSCH是否为新数据的NDI(New Data indicator，新数据指示)为非‘0’。
(4)用于PDSCH的频域资源信息分配域为非全‘0’或非全‘1’。
图4所示实施例提出第二指示信息可以指示N个TCI状态，下面对第二指示信息如何指示N个TCI状态进行说明。
在一些实施例中，第二指示信息携带在第一媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第一MAC CE用于指示N个TCI状态。
可选地，第一MAC CE用于指示第一DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第一MAC CE但不发送DCI，该第一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，第二指示信息携带在第二MAC CE和第二DCI中，第二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，第二MAC CE和第二DCI同时用于指示第二指示信息，该第二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，进而通过查询第二MAC CE查询得到该码点对应的N个TCI状态。此时第二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。
其中，本申请实施例中的第一DCI与第二DCI可以为相同的DCI，或者，第一DCI与第二DCI可以为不同的DCI，本申请实施例不作限定。
需要说明的是，本申请实施例对第二指示信息如何指示N个TCI状态进行说明，而在另一实施例中，N个TCI状态中的X个TCI状态用于至少一个其它信道/信号的传输，X为正整数，且X不大于N。
其中，该信号可以理解为参考信号。其它信道包括除PDSCH信道以外的信道。
在本申请实施例中，其它信道也可以采用N个TCI状态中的部分或全部TCI状态进行传输，另外信号也可以采用N个TCI状态中的部分或全部TCI状态进行传输。
在一些实施例中，其它信道包括PUCCH、PUSCH或PDCCH中的至少一项。也就是说，PUCCH、PUSCH或PDCCH中的至少一项均可以使用N个TCI状态中的X个TCI状态。
在一些实施例中，至少一个信号包括CSI-RS或SRS中的至少一项。也就是说，CSI-RS或SRS中的至少一项均可以使用N个TCI状态中的X个TCI状态。
需要说明的是，本申请中的X个TCI状态为N个TCI状态的子集，即X可以小于或等于N。下面，具体对X个TCI状态进行说明。
在一些实施例中，其他信道包括PDCCH，或者至少一个信号为CSI-RS，则X个TCI状态为N个TCI状态的子集。该TCI状态包括联合TCI状态和/或下行TCI状态。
在一些实施例中，其他信息包括PUSCH或PUCCH中的至少一项，或者至少一个信号包括SRS，X个TCI状态包括联合TCI状态和/或上行TCI状态，第二指示信息指示的N个TCI状态包括联合TCI状态和/或上行TCI状态，X个TCI状态为N个TCI状态的子集。
图5示出了本申请一个示例性实施例提供的信息指示方法的流程图，示例性的可以应用于如图1所示的网络设备中，该方法包括以下内容中的至少部分内容：
步骤501：网络设备向终端发送第一指示信息，第一指示信息用于终端确定第一DCI中是否包括第一信息域，第一信息域用于指示终端使用M个TCI状态 进行PDSCH的接收，TCI状态包括联合TCI状态，下行TCI状态和上行TCI状态中的至少一项，M为正整数。
其中，该第一DCI是指网络设备为终端配置参数的信息。可选地，该第一DCI为DCI(Downlink Control Information，第一DCI)，或者为其他类型的信息。
该第一指示信息指示该第一DCI中是否包括第一信息域。
第一信息域是指示终端使用M个TCI状态进行PDSCH传输。也就是说由终端基于M个TCI状态进行PDSCH接收。
在一些实施例中，网络设备会向终端发送第二指示信息，通过该第二指示信息指示N个TCI状态，N为正整数，且M不大于N，M个TCI状态属于第二指示信息指示的N个TCI状态的子集。也就说是，第一信息域指示终端使用第二指示信息指示的N个TCI状态中的M个TCI状态进行PDSCH接收，终端是从第二指示信息指示的N个TCI状态中选择M个TCI状态进行PDSCH接收。
该第二指示信息用于指示N个TCI状态，也就是说，网络设备向终端发送指示N个TCI状态的第二指示信息，终端接收到该第二指示信息后，基于该第二指示信息即可确定网络设备为终端配置的N个TCI状态。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3、TCI状态#4、TCI状态#5和TCI状态#6，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1、TCI状态#2、TCI状态#4和TCI状态#5。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1和TCI状态#2，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1。
例如，第二指示信息指示的N个TCI状态包括TCI状态#1、TCI状态#2、TCI状态#3、和TCI状态#4，第一信息域指示的M个TCI状态为N个TCI状态中的TCI状态#1和TCI状态#2。
TCI状态包括联合TCI状态，下行TCI状态和上行TCI状态中的至少一项。联合TCI状态既可以用于上行传输，也可以用于下行传输。上行TCI状态用于上行传输。下行TCI状态用于下行传输。
在本申请实施例中，网络设备向终端发送用于指示第一DCI中是否包括第一信息域的第一指示信息，则终端接收到该第一指示信息后，即可确定第一DCI中是否包括第一信息域，进而确定是否可以基于第一信息域确定使用的M个TCI 状态。
本申请提供了一种通过指示信息来确定控制信息中是否包括指示使用的TCI状态的信息域的方案，保证对控制信息解码的准确性，进而提高确定的TCI状态的准确性，以保证传输的可靠性。
图5所示实施例对终端接收第一指示信息进行说明。而具体的终端还会根据第一指示信息确定第一DCI中是否包括第一信息域，下面对终端如何根据第一指示信息确定第一DCI中是否包括第一信息域进行说明。
在一些实施例中，该第一指示信息用于指示目标PDSCH传输方法。
其中，在第一指示信息指示目标PDSCH传输方法的情况下，第一DCI中包括第一信息域。也就是说，若第一指示信息指示的PDSCH传输方法为目标PDSCH传输方法，则说明第一DCI中包括第一信息域。
其中，该目标PDSCH传输方法是指网络设备为终端指示的需要采用至少两个TCI状态的PDSCH传输方法。
可选地，该目标PDSCH传输方法包括以下至少一项：
(1)频分复用方法A。
其中，该频分复用方法A还可以采用FDMscheme A表示。该频分复用方法A是指两个TCI状态对应不同的频域资源，但是对应同样的冗余版本，也就是说，终端可以假设使用不同的TCI状态在不同的频域资源接收一个TB的一个PDSCH传输时机。
(2)频分复用方法B。
其中，该频分复用方法B还可以采用FDMscheme B表示。该频分复用方法B是指两个TCI状态对应不同的频域资源，但是对应不同的冗余版本，也就是说，终端可以假设使用不同的TCI状态在不同的频域资源接收一个TB的两个PDSCH传输时机。
(3)时分复用方法A。
其中，该时分复用方法A还可以采用TDM scheme A表示。该时域复用方法A是指不同的TCI state对应不同的时域资源。
(4)单频网络方法A。
其中，该单频网络方法A还可以采用SFN-schemeA表示。该单频网络方法A是指若网络设备指示至少两个TCI状态，终端假设用于传输PDSCH的DMRS端口与该至少两个TCI状态对应的参考信号准共址。
(5)单频网络方法B。
其中，该单频网络方法B还可以采用SFN-schemeB表示。该单频网络方法B是指若网络设备指示至少两个TCI状态，终端假设用于传输PDSCH的DMRS端口与该至少两个TCI状态对应的参考信号准共址，除了最后一个TCI状态的准共址参数：{多普勒偏移(Doppler shift)、多普勒扩展(Doppler spread)}之外。
(6)基于两个码分复用CDM组的传输方法。
用于传输PDSCH的DMRS端口对应至少两个CDM组，至少两个CDM组对应的TCI状态不同。
在本申请实施例中，若终端确定第一指示信息指示的PDSCH传输方法为上述6种PDSCH传输方法中的任一种时，终端即可确定第一DCI中包括第一信息域。
需要说明的是，本申请实施例是以终端在确定第一指示信息指示的PDSCH传输方法为目标PDSCH传输方法时，确定第一DCI包括第一信息域为例进行说明。而在另一实施例中，终端还会确定第一DCI不包括第一信息域。
本申请实施例提供了一种根据第一指示信息指示的PDSCH传输方法确定第一DCI中是否包括第一信息域的方案，保证了确定第一DCI中是否包括第一信息域的可靠性，提高了终端对第一DCI解码的准确性，进而保证确定承载该第一DCI的PDCCH和相应的PDSCH传输的可靠性。
图5所示实施例对网络设备发送第一指示信息进行说明。下面对如何根据第一指示信息确定第一DCI中是否包括第一信息域进行说明。
在一些实施例中，该第一指示信息携带在RRC信令，该RRC信令用于指示第一DCI中是否包括第一信息域。也就是说，该RRC信令中直接携带用于指示第一DCI中是否包括第一信息域的信息。例如，该RRC信令通过1比特来指示第一DCI中是否包括第一信息域的信息。若RRC信令中的1比特为1，则指示第一DCI中包括第一信息域，若RRC信令中的1比特为0，则指示第一DCI中包括第一信息域。例如，该RRC信令通过enable(启用)来指示第一DCI中包括第一信息域的信息；和/或通过disable(禁用)来指示第一DCI中不包括第一信息域的信息。
本申请实施例提供的方案中，根据该第一指示信息即可确定第一DCI中是否包括第一信息域，保证了终端确定第一DCI中是否包括第一信息域的可靠性， 提高了终端对第一DCI解码的准确性，进而保证确定承载该第一DCI的PDCCH和相应的PDSCH传输的可靠性。
图5所示实施例中提出第一DCI中是否包括第一信息域，而下面对第一DCI中包括的参数进行说明。
在一些实施例中，该第一DCI包括下行资源分配信息，或者，该第一DCI不包括下行资源分配信息。
其中，该下行资源配置信息是指为终端配置用于下行传输的资源的信息。
可选地，该下行资源分配信息包括以下至少一项：
(1)用于PDSCH的时域资源信息。
其中，该时域资源信息用于指示时域资源，也就是说该时域资源信息指示用于PDSCH的时域资源。
(2)用于PDSCH的调制编码方式。
(3)用于PDSCH的冗余版本。
(4)用于PDSCH的频域资源信息。
其中，该频域资源信息用于指示频域资源，也就是说该频域资源信息指示用于PDSCH的频域资源。
(5)HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)processing number(进程编号)。
需要说明的是，本申请实施例是以上述举例的几种参数为例进行说明，而本申请不限于上述举例的几种参数，还可以包括其他相关参数，本申请实施例不做限定。
在一些实施例中，而不包括下行资源分配信息的第一DCI具有以下特征，即包括以下至少一项：
(1)用于PDSCH的调制编码方式域为全‘1’。
(2)用于PDSCH的冗余版本域为全‘1’。
(3)用于指示PDSCH是否为新数据的NDI(New Data indicator，新数据指示)为‘0’。
(4)用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
本申请实施例中，第一DCI不包括下行资源分配信息，就是说该第一DCI包括上述4种信息域中的至少一项为上述特殊比特值。例如，第一DCI中用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
需要说明的是，本申请实施例是以不包括下行资源分配信息的第一DCI具有的特征为例进行说明。而在另一些实施例中，包括下行资源分配信息的第一DCI与上述不包括下行资源分配信息的第一DCI的特征为相反关系。
可选地，包括下行资源分配信息的第一DCI具有以下至少一项特征：
(1)用于PDSCH的调制编码方式域为非全‘1’。
(2)用于PDSCH的冗余版本域为非全‘1’。
(3)用于指示PDSCH是否为新数据的NDI(New Data indicator，新数据指示)为非‘0’。
(4)用于PDSCH的频域资源信息分配域为非全‘0’或非全‘1’。
图5所示实施例提出第二指示信息可以指示N个TCI状态，下面对第二指示信息如何指示N个TCI状态进行说明。
在一些实施例中，第二指示信息携带在第一媒体接入控制层控制元素(Medium Access Control Control Element，MAC CE)中，第一MAC CE用于指示N个TCI状态。
可选地，第一MAC CE用于指示第一DCI(Downlink Control Information,DCI)的TCI域中的一个码点对应的N个TCI状态。也即，只发送第一MAC CE但不发送DCI，该第一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，第二指示信息携带在第二MAC CE和第二DCI中，第二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，第二MAC CE和第二DCI同时用于指示第二指示信息，该第二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，进而通过查询第二MAC CE查询得到该码点对应的N个TCI状态。此时第二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。
其中，本申请实施例中的第一DCI与第二DCI可以为相同的DCI，或者，第一DCI与第二DCI可以为不同的DCI，本申请实施例不作限定。
需要说明的是，本申请实施例对第二指示信息如何指示N个TCI状态进行说明，而在另一实施例中，N个TCI状态中的X个TCI状态用于至少一个其它 信道/信号的传输，X为正整数，X不大于N。
其中，该信号可以理解为参考信号。其它信道包括除PDSCH信道以外的信道。
在本申请实施例中，其它信道也可以采用N个TCI状态中的部分或全部TCI状态进行传输，另外信号也可以采用N个TCI状态中的部分或全部TCI状态进行传输。
在一些实施例中，其它信道包括PUCCH、PUSCH或PDCCH中的至少一项。也就是说，PUCCH、PUSCH或PDCCH中的至少一项均可以使用N个TCI状态中的X个TCI状态。
在一些实施例中，至少一个信号包括CSI-RS或SRS中的至少一项。也就是说，CSI-RS或SRS中的至少一项均可以使用N个TCI状态中的X个TCI状态。
需要说明的是，本申请中的X个TCI状态为N个TCI状态的子集，即X可以小于或等于N。下面，具体对X个TCI状态进行说明。
在一些实施例中，其他信道包括PDCCH，或者至少一个信号为CSI-RS，则X个TCI状态为N个TCI状态的子集。该TCI状态包括联合TCI状态和/或下行TCI状态。
在一些实施例中，其他信息包括PUSCH或PUCCH中的至少一项，或者至少一个信号包括SRS，X个TCI状态包括联合TCI状态和/或上行TCI状态，第二指示信息指示的N个TCI状态包括联合TCI状态和/或上行TCI状态，X个TCI状态为N个TCI状态的子集。
图6示出了本申请一个示例性实施例提供的一种信息指示装置的框图，参见图6，该装置包括：
接收模块601，用于接收网络设备发送的第一指示信息；
处理模块602，用于根据所述第一指示信息确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
在一些实施例中，所述第一指示信息用于指示目标PDSCH传输方法；所述处理模块602，用于在所述第一指示信息指示目标PDSCH传输方法的情况下，确定所述第一DCI中包括所述第一信息域。
在一些实施例中，所述目标传输方法包括以下至少一项：
频分复用方法A；
频分复用方法B；
时分复用方法A；
单频网络方法A；
单频网络方法B；
基于两个CDM组的传输方法。
在一些实施例中，所述处理模块602，用于在所述第一指示信息未指示所述目标PDSCH传输方法的情况下，确定所述第一DCI中不包括所述第一信息域。
在一些实施例中，所述处理模块602，用于在未收到所述第一指示信息的情况下，确定所述第一DCI中不包括所述第一信息域。
在一些实施例中，所述第一指示信息携带在RRC信令，所述RRC信令用于指示所述第一DCI中是否包括所述第一信息域。
在一些实施例中，所述第一DCI包括下行资源分配信息或不包括所述下行资源分配信息。
在一些实施例中，不包括所述下行资源分配信息的所述第一DCI包括以下至少一项：
用于PDSCH的调制编码方式域为全‘1’；
用于PDSCH的冗余版本域为全‘1’；
用于指示PDSCH是否为新数据的新数据指示NDI为‘0’；
用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
在一些实施例中，所述接收模块601，还用于接收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N个TCI状态，N为正整数，且M不大于N；所述M个TCI状态属于第二指示信息指示的N个TCI状态的子集。
在一些实施例中，所述第二指示信息携带在第一媒体接入控制层控制元素MAC CE中，所述第一MAC CE用于指示所述N个TCI状态；或，
所述第二指示信息携带在第二MAC CE和第二DCI中，所述第二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N个TCI状态中的X个TCI状态用于至少一个其它信道/信号的传输，X为正整数，且X不大于N。
在一些实施例中，所述至少一个其它信道包括以下至少一项：
PUCCH；
PUSCH；
PDCCH。
在一些实施例中，所述至少一个信号包括以下至少一项：
CSI-RS；
SRS。
在一些实施例中，所述X个TCI状态为所述N个TCI状态的子集。
需要说明的是，上述实施例提供的装置，在实现其功能时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的装置与方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
图7示出了本申请一个示例性实施例提供的一种信息指示装置的框图，参见图7，该装置包括：
发送模块701，用于向终端发送第一指示信息，所述第一指示信息用于终端确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
在一些实施例中，所述第一指示信息用于指示PDSCH传输方法；所述第一指示信息指示目标PDSCH传输方法是用于所述终端确定所述第一DCI包括所述第一信息域。
在一些实施例中，所述目标传输方法包括以下至少一项：
频分复用方法A；
频分复用方法B；
时分复用方法A；
单频网络方法A；
单频网络方法B；
基于两个码分复用CDM组的传输方法。
在一些实施例中，所述第一指示信息携带在RRC信令，所述RRC信令用 于指示所述第一DCI中是否包括所述第一信息域。
在一些实施例中，所述第一DCI包括下行资源分配信息或不包括所述下行资源分配信息。
在一些实施例中，不包括所述下行资源分配信息的所述第一DCI包括以下至少一项：
用于PDSCH的调制编码方式域为全‘1’；
用于PDSCH的冗余版本域为全‘1’；
用于指示PDSCH是否为新数据的新数据指示NDI为‘0’；
用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
在一些实施例中，发送模块701，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N个TCI状态，N为正整数，且M不大于N；所述M个TCI状态属于第二指示信息指示的N个TCI状态的子集。
在一些实施例中，所述第二指示信息携带在第一媒体接入控制层控制元素MAC CE中，所述第一MAC CE用于指示所述N个TCI状态；或，
所述第二指示信息携带在第二MAC CE和第二DCI中，所述第二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，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N个TCI状态中的X个TCI状态用于至少一个其它信道/其它信号的传输，X为正整数，且X不大于N。
在一些实施例中，所述至少一个其它信道包括以下至少一项：
PUCCH；
PUSCH；
PDCCH。
在一些实施例中，所述至少一个信号包括以下至少一项：
CSI-RS；
SRS。
在一些实施例中，所述X个TCI状态为所述N个TCI状态的子集。
需要说明的是，上述实施例提供的装置，在实现其功能时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的装置与方法实施例属于 同一构思，其具体实现过程详见方法实施例，这里不再赘述。
图8示出了本申请一个示例性实施例提供的通信设备的结构示意图，该通信设备包括：处理器801、接收器802、发射器803、存储器804和总线805。
处理器801包括一个或者一个以上处理核心，处理器801通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器802和发射器803可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器804通过总线805与处理器801相连。
存储器804可用于存储至少一个程序代码，处理器801用于执行该至少一个程序代码，以实现上述方法实施例中的各个步骤。
此外，通信设备可以为终端或网络设备。存储器804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信息指示方法。
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信息指示方法。
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信息指示方法，所述网络设备用于实现如上述所述的信息指示方法。
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信息指示方法。
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 (32)

  1. 一种信息指示方法，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指示信息，根据所述第一指示信息确定第一下行控制信息DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行物理下行共享信道PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
  2. 根据权利要求1所述的方法，其特征在于，所述第一指示信息用于指示目标PDSCH传输方法；所述根据所述第一指示信息确定第一DCI中是否包括第一信息域，包括：
    在所述第一指示信息指示目标PDSCH传输方法的情况下，确定所述第一DCI中包括所述第一信息域。
  3. 根据权利要求2所述的方法，其特征在于，所述目标传输方法包括以下至少一项：
    频分复用方法A；
    频分复用方法B；
    时分复用方法A；
    单频网络方法A；
    单频网络方法B；
    基于两个码分复用CDM组的传输方法。
  4. 根据权利要求2所述的方法，其特征在于，所述根据所述第一指示信息确定第一DCI中是否包括第一信息域，包括：
    在所述第一指示信息未指示所述目标PDSCH传输方法的情况下，确定所述第一DCI中不包括所述第一信息域。
  5. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    在未收到所述第一指示信息的情况下，确定所述第一DCI中不包括所述第 一信息域。
  6. 根据权利要求1所述的方法，其特征在于，所述第一指示信息携带在RRC信令，所述RRC信令用于指示所述第一DCI中是否包括所述第一信息域。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述第一DCI包括下行资源分配信息或不包括所述下行资源分配信息。
  8. 根据权利要求7所述的方法，其特征在于，不包括所述下行资源分配信息的所述第一DCI包括以下至少一项：
    用于PDSCH的调制编码方式域为全‘1’；
    用于PDSCH的冗余版本域为全‘1’；
    用于指示PDSCH是否为新数据的新数据指示NDI为‘0’；
    用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
  9. 根据权利要求1至8任一所述的方法，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指示信息，所述第二指示信息用于指示N个TCI状态，N为正整数，且M不大于N；所述M个TCI状态属于所述N个TCI状态的子集。
  10. 根据权利要求9所述的方法，其特征在于，
    所述第二指示信息携带在第一媒体接入控制层控制元素MAC CE中，所述第一MAC CE用于指示所述N个TCI状态；或，
    所述第二指示信息携带在第二MAC CE和第二DCI中，所述第二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。
  11. 根据权利要求10所述的方法，其特征在于，所述N个TCI状态中的X个TCI状态用于至少一个其它信道/信号的传输，X为正整数，且X不大于N。
  12. 根据权利要求11所述的方法，其特征在于，所述至少一个其它信道包括以下至少一项：
    物理上行控制信道PUCCH；
    物理上行共享信道PUSCH；
    物理下行控制信道PDCCH。
  13. 根据权利要求11所述的方法，其特征在于，所述至少一个信号包括以下至少一项：
    信道状态信息参考信号CSI-RS；
    探测参考信号SRS。
  14. 根据权利要求11所述的方法，其特征在于，所述X个TCI状态为所述N个TCI状态的子集。
  15. 一种信息指示方法，其特征在于，所述方法由网络设备执行，所述方法包括：
    向终端发送第一指示信息，所述第一指示信息用于所述终端确定第一下行控制信息DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行物理下行共享信道PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
  16. 根据权利要求15所述的方法，其特征在于，所述第一指示信息用于指示目标PDSCH传输方法；所述第一指示信息指示目标PDSCH传输方法是用于所述终端确定所述第一DCI包括所述第一信息域。
  17. 根据权利要求16所述的方法，其特征在于，所述目标PDSCH传输方法包括以下至少一项：
    频分复用方法A；
    频分复用方法B；
    时分复用方法A；
    单频网络方法A；
    单频网络方法B；
    基于两个码分复用CDM组的传输方法。
  18. 根据权利要求15所述的方法，其特征在于，所述第一指示信息携带在RRC信令，所述RRC信令用于指示所述第一DCI中是否包括所述第一信息域。
  19. 根据权利要求15至18任一所述的方法，其特征在于，所述第一DCI包括下行资源分配信息或不包括所述下行资源分配信息。
  20. 根据权利要求19所述的方法，其特征在于，不包括所述下行资源分配信息的所述第一DCI包括以下至少一项：
    用于PDSCH的调制编码方式域为全‘1’；
    用于PDSCH的冗余版本域为全‘1’；
    用于指示PDSCH是否为新数据的新数据指示NDI为‘0’；
    用于PDSCH的频域资源信息分配域为全‘0’或全‘1’。
  21. 根据权利要求15至20任一所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第二指示信息，所述第二指示信息用于指示N个TCI状态，N为正整数，且M不大于N；所述M个TCI状态属于所述N个TCI状态的子集。
  22. 根据权利要求21所述的方法，其特征在于，
    所述第二指示信息携带在第一媒体接入控制层控制元素MAC CE中，所述第一MAC CE用于指示所述N个TCI状态；或，
    所述第二指示信息携带在第二MAC CE和第二DCI中，所述第二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，所述第二DCI用于指示所述至少两个码点中的一个码点。
  23. 根据权利要求22所述的方法，其特征在于，所述N个TCI状态中的X 个TCI状态用于至少一个其它信道/其它信号的传输，X为正整数，且X不大于N。
  24. 根据权利要求23所述的方法，其特征在于，所述至少一个其它信道包括以下至少一项：
    PUCCH；
    PUSCH；
    PDCCH。
  25. 根据权利要求23所述的方法，其特征在于，所述至少一个信号包括以下至少一项：
    信道状态信息参考信号CSI-RS；
    探测参考信号SRS。
  26. 根据权利要求23所述的方法，其特征在于，所述X个TCI状态为所述N个TCI状态的子集。
  27. 一种信息指示装置，其特征在于，所述装置由终端执行，所述装置包括：
    接收模块，用于接收网络设备发送的第一指示信息；
    处理模块，用于根据所述第一指示信息确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行物理下行共享信道PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
  28. 一种信息指示装置，其特征在于，所述装置由网络设备执行，所述装置包括：
    发送模块，用于向终端发送第一指示信息，所述第一指示信息用于所述终端确定第一DCI中是否包括第一信息域，所述第一信息域用于指示所述终端使用M个TCI状态进行物理下行共享信道PDSCH的接收，所述TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态中的至少一项，M为正整数。
  29. 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14任一所述的信息指示方法。
  30. 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15至26任一所述的信息指示方法。
  31. 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14任一所述的信息指示方法，所述网络设备用于实现如权利要求15至26任一所述的信息指示方法。
  32. 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26任一所述的信息指示方法。
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