WO2023070390A1 - 传输配置指示确定方法、装置、终端及存储介质 - Google Patents

传输配置指示确定方法、装置、终端及存储介质 Download PDF

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Publication number
WO2023070390A1
WO2023070390A1 PCT/CN2021/126807 CN2021126807W WO2023070390A1 WO 2023070390 A1 WO2023070390 A1 WO 2023070390A1 CN 2021126807 W CN2021126807 W CN 2021126807W WO 2023070390 A1 WO2023070390 A1 WO 2023070390A1
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Prior art keywords
dci
tci state
dcis
transmission
harq
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PCT/CN2021/126807
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English (en)
French (fr)
Inventor
李明菊
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2021/126807 priority Critical patent/WO2023070390A1/zh
Priority to CN202180003615.8A priority patent/CN114175822A/zh
Publication of WO2023070390A1 publication Critical patent/WO2023070390A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Definitions

  • the present application relates to the field of communication technologies, and in particular to a method, device, terminal and storage medium for determining a transmission configuration indication.
  • Common Beam In the field of communication technology, in order to reduce signaling overhead, the use of common beam (Common Beam) is introduced. For example, if the base station indicates a common beam for downlink, then the beam can be used for the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and at least part of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) of the terminal and some Downlink reference signal; if the base station indicates a general beam for uplink, then the beam can be used for the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) of the terminal and at least a part of the physical uplink control channel (Physical Uplink Control Channel, PUCCH) and some uplink reference signals.
  • PDSCH Physical Downlink shared channel
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • the general beam is indicated by the transmission configuration indication state (Transmission Configuration Indication State, TCI state) in the downlink control information (Downlink Control Information, DCI).
  • TCI state Transmission Configuration Indication State
  • DCI state Downlink Control Information
  • HARQ Hybrid Automatic Repeat Request
  • ACK Acknowledge character, ACK
  • codebook carries the HARQ-ACK information corresponding to the DCI and feeds it back to the base station for determination.
  • the HARQ-ACK codebook can contain HARQ-ACK information corresponding to multiple DCIs, and when one HARQ-ACK codebook contains HARQ-ACK information of multiple DCIs, and multiple DCIs contain TCI status indicators , the terminal uses the HARQ-ACK information of which DCI to determine the TCI state in which DCI to use, so as to determine the general beam used, which is a problem that needs to be solved.
  • Embodiments of the present disclosure provide a method, device, terminal, and storage medium for determining a transmission configuration indication, which can solve the problem that the terminal includes HARQ-ACK information corresponding to multiple DCIs in the HARQ-ACK codebook, and multiple DCIs include TCI status indications. , how to determine the common beam used for communication transmission. Described technical scheme is as follows:
  • a method for determining a transmission configuration indication is provided, which is applied to a terminal device, and the method includes:
  • each of the M pieces of DCI includes a transmission configuration indicator TCI state, and the M pieces of DCI include reference DCI, where M is a positive integer;
  • a unified TCI state used for communication transmission is determined based on the target TCI state included in the reference DCI.
  • an apparatus for determining a transmission configuration indication includes:
  • the receiving module is configured to receive M pieces of downlink control information DCI sent by the network device, each of the M pieces of DCI contains a transmission configuration indicator TCI state, and the M pieces of DCI include reference DCI, where M is a positive integer ;
  • a determining module configured to determine a unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • a terminal includes: a processor; a transceiver connected to the processor; wherein the processor is configured to load and execute executable instructions to implement the above-mentioned
  • the transmission configuration indicates the determination method.
  • a computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the at least A program, the code set or the instruction set is loaded and executed by the processor to implement the method for determining the transmission configuration instruction as described above.
  • the terminal device When the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device determines the TCI state used for communication transmission according to the TCI state contained in the reference DCI among the M DCIs.
  • M is a positive integer. That is, this disclosure provides a solution to the problem of how to determine the common beam used for communication transmission, so that the terminal device and the network device can achieve a unified TCI state adoption time, ensure beam consistency, and improve the communication between the terminal device and the network device. Beam-based transmission performance.
  • Fig. 1 is a schematic diagram of a communication system provided by an exemplary embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method for determining a transmission configuration indication provided by an exemplary embodiment of the present disclosure
  • Fig. 3 is a flowchart of a method for determining a transmission configuration indication provided by another exemplary embodiment of the present disclosure
  • Fig. 4 is a flowchart of a method for determining a transmission configuration indication provided by another exemplary embodiment of the present disclosure
  • Fig. 5 is a flowchart of a method for determining a transmission configuration indication provided by another exemplary embodiment of the present disclosure
  • Fig. 6 is a flowchart of a method for determining a transmission configuration indication provided by another exemplary embodiment of the present disclosure
  • Fig. 7 is a flowchart of a method for determining a transmission configuration indication provided by another exemplary embodiment of the present disclosure.
  • Fig. 8 is a structural block diagram of an apparatus for determining a transmission configuration indication provided by an exemplary embodiment of the present disclosure
  • Fig. 9 is a structural block diagram of an apparatus for determining a transmission configuration indication provided by another exemplary embodiment of the present disclosure.
  • Fig. 10 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present disclosure.
  • first, second, third, etc. may be used in the present disclosure 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 one another.
  • first information may also be called second information, and similarly, second information may also be called first information.
  • word “if” as used herein could be interpreted as “at” or “when” or "in response to a determination”.
  • FIG. 1 shows a schematic diagram of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include: a terminal device 10 and a network device 20 .
  • the number of terminal devices 10 is generally multiple, and one or more terminal devices 10 may be distributed in a cell managed by each network device 20 .
  • the terminal device 10 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of user equipment (User Equipment, UE), mobile station (Mobile Station, MS) and so on.
  • UE User Equipment
  • MS Mobile Station
  • the network device 20 is a device deployed in an access network to provide a wireless communication function for the terminal device 10 .
  • the network device 20 may include various forms of macro base stations, micro base stations, relay stations, and access points. In systems using different radio access technologies, the names of devices with network device functions may be different. For example, in 5G NR systems, they are called gNodeB or gNB.
  • the term "network equipment" may change as communications technology evolves.
  • the above-mentioned devices that provide the wireless communication function for the terminal device 10 are collectively referred to as network devices.
  • a connection can be established between the network device 20 and the terminal device 10 through an air interface, so as to perform communication through the connection, including signaling and data interaction.
  • the number of network devices 20 may be multiple, and communication between two adjacent network devices 20 may also be performed in a wired or wireless manner.
  • the terminal device 10 can switch between different network devices 20 , that is, establish connections with different network devices 20 .
  • the "5G NR system" in the embodiments of the present disclosure 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 the present disclosure can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system.
  • New Radio In the new wireless technology (New Radio, NR), especially when the communication frequency band is in the frequency range 2 (frequency range 2), due to the rapid attenuation of high-frequency channels, in order to ensure coverage, it is necessary to use beam-based transmission and reception.
  • New Radio NR
  • the TCI state of any one or multiple combinations of PDCCH, PDSCH, PUSCH, PUCCH, and reference signals are independently indicated, wherein the above reference signals include Channel State Information Reference Signal (Channel State Information Reference Signal, CSI-RS), sounding reference signal (Sounding Reference Signal, SRS), positioning reference signal (Positioning Reference Signal, PRS), tracking reference signal (Tracking Reference Signal, TRS), etc.
  • CSI-RS Channel State Information Reference Signal
  • SRS Sounding reference signal
  • PRS positioning reference signal
  • TRS Track Reference Signal
  • CSI-RS includes CSI-RS for channel state information measurement, CSI-RS for beam measurement or CSI-RS for path loss (pathloss) estimation, CSI-RS also includes periodic transmission, semi-static (semi-persistent) and aperiodically transmitted CSI-RS; SRS includes SRS for channel state information measurement based on codebook or non-codebook, SRS for beam measurement or SRS for positioning measurement, SRS It also includes SRS sent periodically, semi-persistent and aperiodically sent. And PDCCH and PUCCH use MAC CE (MAC Control Element, MAC control element) to activate a TCI state. PDSCH and PUSCH are DCI signaling to indicate their respective TCI state.
  • MAC CE MAC Control Element, MAC control element
  • unified TCI state In order to reduce the signaling overhead, it is hoped to use a unified/universal TCI state (unified TCI state).
  • the TCI state can be used for the PDSCH of the terminal and at least a part of the PDCCH (such as terminal-specific PDCCH (User Equipment dedicated PDCCH)) and some downlink reference signals;
  • the base station indicates a unified TCI state for uplink, then the TCI state can be used for the terminal's PUSCH and at least part of the PUCCH and some uplink reference signals.
  • the unified TCI state may currently indicate separate uplink TCI state (Separate Up Link TCI State) and separate downlink TCI state (Separate Down Link TCI State), or joint uplink and downlink TCI state (Joint TCI State).
  • Separate UL TCI State applies to uplink channels and/or signals
  • Separate DL TCI State applies to downlink channels and/or signals
  • Joint TCI State applies to both uplink and downlink channels and/or signals.
  • one HARQ-ACK codebook can contain HARQ-ACK information corresponding to DCIs of multiple slots (slots) on multiple carriers (Component Carrier, CC), that is, the Serving Cell (Serving Cell).
  • the HARQ-ACK information corresponding to the DCI of each slot on each CC uses independent bits.
  • the terminal uses the HARQ-ACK information of which DCI as the standard to determine which DCI to use. TCI status, yes issues that need resolving.
  • the present disclosure provides a method for determining a transmission configuration indication, which provides how to determine the communication status for a terminal when multiple DCIs corresponding to the HARQ-ACK information bits contained in a HARQ-ACK codebook contain TCI status indications.
  • the unified transport configuration indication used by the transport provides a solution. In the following, the technical solution provided by the present application will be described through several embodiments.
  • FIG. 2 shows a flowchart of a method for determining a transmission configuration indication provided by an embodiment of the present disclosure.
  • the method can be applied to terminal equipment in the communication system shown in FIG. 1 .
  • the method includes the following steps.
  • Step 201 receiving M DCIs sent by a network device, each of the M DCIs includes a TCI state, and the M DCIs include a reference DCI.
  • the above M DCIs are used to instruct the terminal device and the network device to use a unified transmission configuration instruction for communication transmission, where the above M is a positive integer.
  • the foregoing TCI state includes at least one of a unified TCI state, a joint TCI state, a separated uplink TCI state, and a separated downlink TCI state.
  • the above M DCIs are sent by the network device through resources on at least one carrier and/or bandwidth part (Bandwidth Part, BWP) in at least one time unit.
  • BWP bandwidth part
  • the above reference DCI may be specified by the network device, may also be preset by the terminal device, or may be determined by the terminal device according to the HARQ-ACK codebook corresponding to the above M DCIs, and the above HARQ-ACK codebook is After the terminal device receives the above M DCIs, it generates according to the respective reception conditions of the above M DCIs or the reception conditions of the PDSCH scheduled by the M DCIs respectively.
  • Step 202 Determine the unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the above reference DCI corresponds to the target TCI state.
  • the foregoing communication transmission includes uplink transmission or downlink transmission of a communication channel, and uplink transmission or downlink transmission of a reference signal.
  • the communication transmission corresponds to the TCI state contained in the DCI.
  • the TCI state is a unified TCI state
  • the communication transmission includes the uplink transmission or downlink transmission of the communication channel, and the uplink transmission or downlink transmission of the reference signal;
  • the TCI state When it is in the joint TCI state, the communication transmission includes the uplink transmission or downlink transmission of the communication channel, and the uplink transmission or downlink transmission of the reference signal;
  • the TCI state is the separated uplink TCI state, the communication transmission is the uplink transmission of the communication channel, and the reference signal Uplink transmission of signals; when the TCI state is the separated downlink TCI state, the communication transmission is the downlink transmission of the communication channel and the downlink transmission of the reference signal.
  • the terminal device when the reference DCI is determined according to the HARQ-ACK codebook corresponding to the above M DCIs, the terminal device, after the target time interval (T time) after the HARQ-ACK codebook is sent, based on the reference DCI contains The target TCI state determines the unified transmission configuration indication used for communication transmission, wherein the HARQ-ACK information corresponding to the reference DCI contained in the HARQ-ACK codebook is ACK, that is, the information indicated by the unified transmission configuration indication indicated by the reference DCI is received correctly.
  • T time target time interval
  • the above-mentioned target time interval may be specified by the network device, may also be preset by the terminal device, or stipulated by a protocol.
  • the aforementioned target time interval may be N transmission symbols.
  • the terminal device when the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device according to the M
  • the unified transmission configuration indication used for communication transmission is determined by referring to the TCI state contained in the DCI in the DCI, and M is a positive integer. That is, the present disclosure provides a solution to the problem of how to determine the unified transmission configuration indication used for communication transmission, so that the terminal device and the network device can achieve a unified TCI state adoption time, ensure the consistency of the transmission configuration indication, and improve the communication between the terminal device and the network device.
  • the transmission performance indicated by the transmission configuration between network devices when the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device according to the M
  • M is a positive integer. That is, the present disclosure provides a solution to the problem of how to determine the unified transmission configuration indication used for communication transmission, so that the terminal device and the network device can achieve a
  • FIG. 3 shows a flowchart of a method for determining a transmission configuration indication provided by an embodiment of the present disclosure.
  • the TCI states included in all the M DCIs received by the terminal device are the same, and M is a positive integer.
  • the method includes the following steps.
  • Step 301 receiving M DCIs sent by the network device, each of the M DCIs includes a TCI state.
  • the above M DCIs are used to instruct the terminal device and the network device to use a unified transmission configuration instruction for communication transmission, where the above M is a positive integer.
  • the foregoing TCI state includes at least one of a unified TCI state, a joint TCI state, a separated uplink TCI state, and a separated downlink TCI state.
  • the above M are sent by the network device in at least one time unit by using resources on at least one carrier and/or bandwidth part.
  • the time unit includes time slots or X symbols, wherein X symbols are less than one time slot, that is, X is less than 14 or 12.
  • Step 302 sending a HARQ-ACK codebook to the network device, where the HARQ-ACK codebook includes HARQ-ACK information respectively corresponding to M DCIs.
  • the above HARQ-ACK codebook further includes HARQ-ACK information corresponding to K DCIs, wherein the above K DCIs are DCIs that do not include a TCI status indication, and K is a positive integer.
  • the HARQ-ACK information corresponding to the above M DCIs may be an acknowledgment (ACK) or a negative acknowledgment (NACK).
  • ACK acknowledgment
  • NACK negative acknowledgment
  • the HARQ-ACK information indicates that the terminal equipment has correctly received the unified transmission configuration information indicated by the DCI and/or correctly received the PDSCH scheduled by the DCI
  • the HARQ-ACK information is NACK, it indicates that the terminal equipment has not correctly The unified transmission configuration indicated by the DCI is received and/or the PDSCH scheduled by the DCI is not correctly received.
  • Step 303 When the HARQ-ACK information corresponding to at least one DCI among the M DCIs is ACK, determine any one of the at least one DCI as a reference DCI.
  • the TCI states contained in all the DCIs in the above M DCIs are the same.
  • any one of the at least one DCI is determined as the reference DCI.
  • the diagram of the HARQ-ACK codebook is shown in the first row in Table 1, wherein the second row in Table 1 indicates the DCI number corresponding to the HARQ-ACK information, and the third row indicates the number indicated in each DCI
  • the TCI state number, the fourth line indicates the carrier CC corresponding to the frequency domain resource of each DCI, and the fifth line indicates the time slot number for each DCI transmission.
  • the TCI state corresponding to all DCIs in Table 1 is TCI state#0
  • the HARQ-ACK information corresponding to DCI#2, DCI#4, DCI#5, and DCI#6 is ACK
  • the reference DCI is the above DCI#2 , DCI#4, DCI#5, and DCI#6, any one of the DCIs.
  • Step 304 Determine the unified TCI state used for communication transmission based on the target TCI state contained in the reference DCI.
  • the above reference DCI corresponds to the target TCI state.
  • the foregoing communication transmission includes uplink transmission or downlink transmission of a communication channel, and uplink transmission or downlink transmission of a reference signal.
  • the terminal device determines the unified transmission configuration indication used for communication transmission based on the target TCI state contained in the reference DCI, wherein, the HARQ-ACK codebook
  • the HARQ-ACK information corresponding to the reference DCI included in the ACK codebook is ACK, that is, the unified transmission configuration indication information indicated by the reference DCI is correctly received.
  • the aforementioned target time interval may be specified by the network device, or may be preset by the terminal device or stipulated by a protocol.
  • the aforementioned target time interval may be N transmission symbols.
  • the terminal device when the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device according to the M
  • the unified transmission configuration indication used for communication transmission is determined by referring to the TCI state contained in the DCI in the DCI, and M is a positive integer.
  • this disclosure proposes a solution to the problem of how to determine the unified transmission configuration indication used for communication transmission when the HARQ-ACK codebook includes HARQ-ACK information corresponding to multiple DCIs, so that the terminal device and the network The device achieves a unified TCI state adopting time to ensure the consistency of the transmission configuration indication, and improve the transmission performance based on the transmission configuration indication between the terminal device and the network device.
  • the terminal in the HARQ-ACK codebook, as long as there is a HARQ-ACK information corresponding to a DCI as ACK, the terminal can start using the TCI indicated in the reference DCI after the target time interval after the ACK is sent. state to determine the unified transport configuration indication used by the communication transport.
  • FIG. 4 shows a flowchart of a method for determining a transmission configuration indication provided by an embodiment of the present disclosure.
  • the N DCIs sent in the last time slot contain the same TCI state, and both N and M are positive integers.
  • the method includes the following steps.
  • Step 401 receiving M DCIs sent by the network device, each of the M DCIs includes a TCI state.
  • the above M DCIs are used to instruct the terminal device and the network device to use a unified transmission configuration instruction for communication transmission, where the above M is a positive integer.
  • the foregoing TCI state includes at least one of a unified TCI state, a joint TCI state, a separated uplink TCI state, and a separated downlink TCI state.
  • the above M are sent by the network device in at least one time unit by using resources on at least one carrier and/or bandwidth part.
  • Step 402 sending a HARQ-ACK codebook to the network device, where the HARQ-ACK codebook includes HARQ-ACK information respectively corresponding to the M DCIs.
  • the above HARQ-ACK codebook further includes HARQ-ACK information corresponding to K DCIs, wherein the above K DCIs are DCIs that do not include a TCI status indication, and K is a positive integer.
  • the above HARQ-ACK information may be an acknowledgment (ACK) or a negative acknowledgment (NACK).
  • ACK acknowledgment
  • NACK negative acknowledgment
  • Step 403 Determine the N DCIs to be sent in the last time slot according to the sending time slots corresponding to the M DCIs respectively.
  • the terminal device acquires the sending time slots corresponding to the M DCIs respectively, and determines the N DCIs sent in the last time slot therefrom.
  • the TCI states contained in the above N DCIs are all the same, and N is a positive integer.
  • the last time slot is taken as an example for illustration.
  • the above last time slot can also be replaced with the first time slot or any designated time slot in all time slots , is not limited here.
  • Step 404 When the HARQ-ACK information corresponding to at least one DCI among the N DCIs is ACK, determine any one of the at least one DCI as a reference DCI.
  • each of the above M DCIs corresponds to a sending time slot
  • one DCI corresponds to only one time slot
  • one time slot can be used to send multiple DCIs.
  • the TCI states included in the N DCIs sent in the last time slot are the same.
  • the HARQ-ACK information corresponding to at least one DCI among the N DCIs sent in the last time slot is ACK, determine any one of the at least one DCI as the reference DCI.
  • the diagram of the HARQ-ACK codebook is shown in the first row in Table 2, wherein the second row in Table 1 indicates the DCI number corresponding to the HARQ-ACK information, and the third row indicates the number indicated in each DCI
  • the TCI states of DCI#4, DCI#5, and DCI#6 sent in the last time slot slot#2 in Table 2 are all TCI state#0, and the HARQ-ACK information corresponding to DCI#4 and DCI#6 is ACK, Then any one of DCI#4 or DCI#6 is determined as the reference DCI.
  • the at least one DCI is determined as the reference DCI.
  • Step 405 Determine the unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the foregoing communication transmission includes uplink transmission or downlink transmission of a communication channel, and uplink transmission or downlink transmission of a reference signal.
  • the terminal device determines the unified transmission configuration indication used for communication transmission based on the target TCI state contained in the reference DCI, wherein, the HARQ-ACK codebook
  • the HARQ-ACK information corresponding to the reference DCI included in the ACK codebook is ACK, that is, the unified transmission configuration indication information indicated by the reference DCI is correctly received.
  • the aforementioned target time interval may be specified by the network device, or may be preset by the terminal device or stipulated by a protocol.
  • the aforementioned target time interval may be N transmission symbols.
  • the terminal device when the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device according to the M
  • the unified transmission configuration indication used for communication transmission is determined by referring to the TCI state contained in the DCI in the DCI, and M is a positive integer.
  • this disclosure proposes a solution to the problem of how to determine the unified transmission configuration indication used for communication transmission when the HARQ-ACK codebook includes HARQ-ACK information corresponding to multiple DCIs, so that the terminal device and the network The device achieves a unified TCI state adopting time to ensure the consistency of the transmission configuration indication, and improve the transmission performance based on the transmission configuration indication between the terminal device and the network device.
  • the terminal in the HARQ-ACK codebook, as long as there is a DCI corresponding to HARQ-ACK information as ACK in the DCI sent in the last time slot, the terminal can start The TCI state indicated in the reference DCI is used to determine the common beam used for the communication transmission.
  • FIG. 5 shows a flowchart of a method for determining a transmission configuration indication provided by an embodiment of the present disclosure.
  • the latest L DCIs corresponding to the transmission start symbols respectively contain the same TCI state, and both L and M are positive integers.
  • the method includes the following steps.
  • Step 501 receiving M DCIs sent by the network device, each of the M DCIs includes a TCI state.
  • the above M DCIs are used to instruct the terminal device and the network device to use a unified transmission configuration instruction for communication transmission, where the above M is a positive integer.
  • the foregoing TCI state includes at least one of a unified TCI state, a joint TCI state, a separated uplink TCI state, and a separated downlink TCI state.
  • the above M are sent by the network device in at least one time unit by using resources on at least one carrier and/or bandwidth part.
  • Step 502 Send a HARQ-ACK codebook to the network device, where the HARQ-ACK codebook includes HARQ-ACK information corresponding to M DCIs respectively.
  • the above HARQ-ACK codebook further includes HARQ-ACK information corresponding to K DCIs, wherein the above K DCIs are DCIs that do not include a TCI status indication, and K is a positive integer.
  • the above HARQ-ACK information may be an acknowledgment (ACK) or a negative acknowledgment (NACK).
  • ACK acknowledgment
  • NACK negative acknowledgment
  • Step 503 according to the transmission start symbols respectively corresponding to the M DCIs, determine L DCIs whose transmission start symbols are the latest.
  • the terminal device determines the sending start symbols corresponding to the M DCIs respectively, and determines L DCIs whose sending start symbols are the latest.
  • the TCI states included in the above L DCIs are all the same, and L is a positive integer.
  • the above-mentioned DCI with the latest start symbol transmission may be the DCI with the latest start symbol transmission in the first time slot of the DCI transmission, or may be the transmission in the last time slot of the DCI transmission time slots.
  • the DCI with the latest start symbol may also be the DCI with the latest start symbol in any specified time slot for sending the DCI, which is not limited here.
  • the above-mentioned DCI with the latest start symbol can be replaced with the DCI with the earliest start symbol. limited.
  • Step 504 When the HARQ-ACK information corresponding to at least one DCI among the L DCIs is ACK, determine any one of the at least one DCI as a reference DCI.
  • each of the above M DCIs corresponds to a sending time slot
  • one DCI corresponds to only one time slot
  • one time slot can be used to send multiple DCIs.
  • the DCI transmitted in the above-mentioned same time slot may also correspond to different transmission start symbols.
  • the TCI states included in the latest L DCIs corresponding to the M DCIs respectively corresponding to the transmission start symbol are the same.
  • the L DCIs are the latest L DCIs in which the start symbol is transmitted among the DCIs whose transmission time slot is the last time slot.
  • the HARQ-ACK information corresponding to at least one DCI among the L DCIs with the latest transmission start symbol is ACK, determine any one of the at least one DCI as the reference DCI.
  • the diagram of the HARQ-ACK codebook is shown in the first row in Table 3, wherein the second row in Table 1 indicates the DCI number corresponding to the HARQ-ACK information, and the third row indicates the number indicated in each DCI
  • the TCI state number, the fourth line indicates the carrier CC corresponding to the frequency domain resource of each DCI, and the fifth line indicates the time slot number for each DCI transmission.
  • the time slot slot#2 in Table 3 is the latest time slot, where the latest start symbol of DCI is symbol#7, and its corresponding DCI includes DCI#5 and DCI#6, where DCI#6 corresponds to HARQ - If the ACK information is ACK, DCI#6 is determined as the reference DCI.
  • any one of the above-mentioned at least one DCI is determined as the reference DCI.
  • Step 505 Determine a unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the foregoing communication transmission includes uplink transmission or downlink transmission of communication channels, and uplink transmission or downlink transmission of signals.
  • the terminal device determines the unified transmission configuration indication used for communication transmission based on the target TCI state contained in the reference DCI, wherein, the HARQ-ACK codebook
  • the HARQ-ACK information corresponding to the reference DCI included in the ACK codebook is ACK, that is, the unified transmission configuration indication information indicated by the reference DCI is correctly received.
  • the aforementioned target time interval may be specified by the network device, or may be preset by the terminal device or stipulated by a protocol.
  • the aforementioned target time interval may be N transmission symbols.
  • the terminal device when the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device according to the M
  • the unified transmission configuration indication used for communication transmission is determined by referring to the TCI state contained in the DCI in the DCI, and M is a positive integer.
  • this disclosure proposes a solution to the problem of how to determine the unified transmission configuration indication used for communication transmission when the HARQ-ACK codebook includes HARQ-ACK information corresponding to multiple DCIs, so that the terminal device and the network The device achieves a unified TCI state adopting time to ensure the consistency of the transmission configuration indication, and improve the transmission performance based on the transmission configuration indication between the terminal device and the network device.
  • the terminal in the HARQ-ACK codebook, as long as the HARQ-ACK information corresponding to one of the DCIs with the latest start symbol transmission is ACK, the terminal can send Begin to use the TCI state indicated in the reference DCI to determine the unified transmission configuration indication used for the communication transmission.
  • FIG. 6 shows a flowchart of a method for determining a transmission configuration indication provided by an embodiment of the present disclosure.
  • the latest J DCIs corresponding to the transmission end symbols respectively contain the same TCI state, and both J and M are positive integers.
  • the method includes the following steps.
  • Step 601 receiving M DCIs sent by the network device, each of the M DCIs includes a TCI state.
  • the above M DCIs are used to instruct the terminal device and the network device to use a unified transmission configuration instruction for communication transmission, where the above M is a positive integer.
  • the foregoing TCI state includes at least one of a unified TCI state, a joint TCI state, a separated uplink TCI state, and a separated downlink TCI state.
  • the above M are sent by the network device in at least one time unit by using resources on at least one carrier and/or bandwidth part.
  • Step 602 Send a HARQ-ACK codebook to the network device, where the HARQ-ACK codebook includes HARQ-ACK information respectively corresponding to the M DCIs.
  • the above HARQ-ACK codebook further includes HARQ-ACK information corresponding to K DCIs, wherein the above K DCIs are DCIs that do not include a TCI status indication, and K is a positive integer.
  • the above HARQ-ACK information may be an acknowledgment (ACK) or a negative acknowledgment (NACK).
  • ACK acknowledgment
  • NACK negative acknowledgment
  • Step 603 according to the transmission end symbols corresponding to the M DCIs, determine the J DCIs with the latest transmission end symbols.
  • the terminal device obtains the transmission end symbols corresponding to the M DCIs respectively, and determines the J DCIs whose transmission end symbols are the latest.
  • the TCI states included in the above J DCIs are all the same, and J is a positive integer.
  • the above-mentioned DCI with the latest end symbol sent may be the DCI with the latest end symbol sent in the first time slot in which the DCI is sent, or the DCI with the latest end symbol sent in the last time slot in which the DCI is sent, or The latest DCI that sends the end symbol in any specified time slot among the time slots in which the DCI is sent.
  • the DCI with the latest sending end symbol may be replaced with the earliest DCI sending end symbol, which is not limited here.
  • Step 604 When the HARQ-ACK information corresponding to at least one DCI among the J DCIs is ACK, determine any one of the at least one DCI as a reference DCI.
  • each of the above M DCIs corresponds to a sending time slot
  • one DCI corresponds to only one time slot
  • one time slot can be used to send multiple DCIs.
  • the multiple DCIs transmitted in the same time slot may also correspond to different transmission end symbols.
  • the TCI states contained in the latest J DCIs corresponding to the M DCIs respectively corresponding to the transmission end symbols are the same.
  • the J DCIs are the latest J DCIs among the DCIs whose transmission time slot is the last time slot among the M DCIs.
  • the HARQ-ACK information corresponding to at least one DCI is ACK among the latest J DCIs of the transmission end symbol, determine any one of the at least one DCI as the reference DCI.
  • the diagram of the HARQ-ACK codebook is shown in the first row in Table 4, wherein the second row in Table 4 indicates the DCI number corresponding to the HARQ-ACK information, and the third row indicates the number indicated in each DCI
  • the TCI state number, the fourth line indicates the carrier frequency CC corresponding to the frequency domain resource of each DCI, and the fifth line indicates the time slot number of each DCI transmission.
  • the time slot slot#2 in Table 4 is the latest time slot, in which the latest end symbol is symbol#9, and its corresponding DCI includes DCI#5 and DCI#6, where the HARQ-ACK information corresponding to DCI#6 is ACK, DCI#6 is determined as the reference DCI.
  • any one of the above at least one DCI is determined as the reference DCI.
  • Step 605 Determine the unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the foregoing communication transmission includes uplink transmission or downlink transmission of a communication channel, and uplink transmission or downlink transmission of a reference signal.
  • the terminal device determines the unified transmission configuration indication used for communication transmission based on the target TCI state contained in the reference DCI, wherein, the HARQ-ACK codebook
  • the HARQ-ACK information corresponding to the reference DCI included in the ACK codebook is ACK, that is, the unified transmission configuration indication information indicated by the reference DCI is correctly received.
  • the aforementioned target time interval may be specified by the network device, or may be preset by the terminal device or stipulated by a protocol.
  • the aforementioned target time interval may be N transmission symbols.
  • the terminal device when the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device according to the M
  • the unified transmission configuration indication used for communication transmission is determined by referring to the TCI state contained in the DCI in the DCI, and M is a positive integer.
  • this disclosure proposes a solution to the problem of how to determine the unified transmission configuration indication used for communication transmission when the HARQ-ACK codebook includes HARQ-ACK information corresponding to multiple DCIs, so that the terminal device and the network The device achieves a unified TCI state adopting time to ensure the consistency of the transmission configuration indication, and improve the transmission performance based on the transmission configuration indication between the terminal device and the network device.
  • the terminal in the HARQ-ACK codebook, as long as the HARQ-ACK information corresponding to one of the DCIs sent at the latest in the end symbol is ACK, the terminal can start The TCI state indicated in the reference DCI is used to determine the unified transmission configuration indication used for the communication transmission.
  • FIG. 7 shows a flowchart of a method for determining a transmission configuration indication provided by an embodiment of the present disclosure. The method includes the following steps.
  • Step 701 receiving M DCIs sent by the network device, each of the M DCIs includes a TCI state.
  • the above M DCIs are used to instruct the terminal device and the network device to use a unified transmission configuration instruction for communication transmission, where the above M is a positive integer.
  • the foregoing TCI state includes at least one of a unified TCI state, a joint TCI state, a separated uplink TCI state, and a separated downlink TCI state.
  • the above M are sent by the network device in at least one time unit by using resources on at least one carrier and/or bandwidth part.
  • Step 702 Send a HARQ-ACK codebook to the network device, where the HARQ-ACK codebook includes HARQ-ACK information respectively corresponding to the M DCIs.
  • the above HARQ-ACK codebook further includes HARQ-ACK information corresponding to K DCIs, wherein the above K DCIs are DCIs that do not include a TCI status indication, and K is a positive integer.
  • the above HARQ-ACK information may be an acknowledgment (ACK) or a negative acknowledgment (NACK).
  • ACK acknowledgment
  • NACK negative acknowledgment
  • Step 703 Determine the reference DCI according to at least one of the carrier numbers, bandwidth part numbers, transmission start times, and transmission end times respectively corresponding to the M DCIs.
  • the determination of the reference DCI includes at least one of the following methods:
  • the M DCIs are respectively corresponding to a sending start time
  • the sending start time indicates a starting time slot or a starting symbol when the network device sends the DCI to the terminal device.
  • the M DCIs are respectively corresponding to a transmission end time, and the transmission end time indicates an end time slot or an end symbol when the network device sends the DCI to the terminal device.
  • the M DCIs are respectively corresponding to a sending start time
  • the sending start time indicates a starting time slot or a starting symbol when the network device sends the DCI to the terminal device.
  • the M DCIs are respectively corresponding to a transmission end time, and the transmission end time indicates an end time slot or an end symbol when the network device sends the DCI to the terminal device.
  • the reference DCI may be determined according to one of the above carrier number, bandwidth part number, transmission start time, and transmission end time, or may be determined according to a combination of multiple items, which is not limited here.
  • multiple candidate DCIs may be determined according to each item, and then the reference DCI is determined from the multiple candidate DCIs according to the multiple items.
  • At least one DCI with the smallest corresponding carrier number among the M DCIs is determined as the first candidate DCI, and the corresponding transmission end time of the M DCIs is the latest At least one DCI is determined as the fourth candidate DCI, and one DCI that is both the first candidate DCI and the second candidate DCI is determined as the reference DCI.
  • each of the above combinations corresponds to a different weight
  • the reference DCI is determined from the candidate DCIs according to the above weights.
  • the weight relationship of the four items is that the weight of the carrier number > the weight of the bandwidth part > the weight of the transmission start time > the weight of the transmission end time, then at least one first candidate DCI is determined according to the carrier number, and when there are multiple first candidate DCIs, then according to the number of the bandwidth part, the Select at least one second candidate DCI, and proceed in sequence until only one candidate DCI remains, and determine the last remaining candidate DCI as the reference DCI.
  • Step 704 when the HARQ-ACK information corresponding to the reference DCI is ACK, determine the unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the foregoing communication transmission includes uplink transmission or downlink transmission of a communication channel, and uplink transmission or downlink transmission of a reference signal.
  • the terminal device determines the unified transmission configuration indication used for communication transmission based on the target TCI state contained in the reference DCI, wherein, the HARQ-ACK codebook
  • the HARQ-ACK information corresponding to the reference DCI included in the ACK codebook is ACK, that is, the unified transmission configuration indication information indicated by the reference DCI is correctly received.
  • the aforementioned target time interval may be specified by the network device, or may be preset by the terminal device or stipulated by a protocol.
  • the aforementioned target time interval may be N transmission symbols.
  • the terminal device when the HARQ-ACK information corresponding to the determined reference DCI is NACK, the terminal device re-determines the reference DCI, or the terminal device re-receives the DCI sent by the network device to determine the unified transmission configuration used for communication transmission instruct.
  • the terminal device when the terminal device receives M DCIs sent by the network device, and each of the M DCIs contains a TCI state, the terminal device according to the M
  • the unified transmission configuration indication used for communication transmission is determined by referring to the TCI state contained in the DCI in the DCI, and M is a positive integer.
  • this disclosure proposes a solution to the problem of how to determine the unified transmission configuration indication used for communication transmission when the HARQ-ACK codebook includes HARQ-ACK information corresponding to multiple DCIs, so that the terminal device and the network The device achieves a unified TCI state adopting time to ensure the consistency of the transmission configuration indication, and improve the transmission performance based on the transmission configuration indication between the terminal device and the network device.
  • FIG. 8 is a structural block diagram of an apparatus for determining a transmission configuration indication provided by an exemplary embodiment of the present disclosure. As shown in FIG. 8 , taking the apparatus as an example for a terminal, the above apparatus 800 includes: a receiving module 810 and a determining module 820 .
  • the receiving module 810 is configured to receive M pieces of downlink control information DCI sent by the network device, each of the M pieces of DCI includes a transmission configuration indicator TCI state, and the M pieces of DCI include reference DCI, where M is positive integer;
  • a determining module 820 configured to determine a unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the device 800 further includes:
  • the sending module 830 is configured to send a hybrid automatic repeat request HARQ response ACK codebook to the network device, where the HARQ-ACK codebook includes HARQ-ACK information respectively corresponding to the M DCIs.
  • all the DCIs in the M DCIs include the same TCI state.
  • the determining module 820 is further configured to determine any one of the at least one DCI as the HARQ-ACK information corresponding to at least one of the M DCIs as the Refer to DCI;
  • the determining module 820 is further configured to determine a unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the TCI states included in the N DCIs sent in the last time slot are the same, and N is a positive integer.
  • the determining module 820 is further configured to determine any one of the at least one DCI as the HARQ-ACK information corresponding to at least one of the N DCIs as the Refer to DCI;
  • the determining module 820 is further configured to determine a unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the TCI states included in the latest L DCIs corresponding to the M DCIs that transmit the start symbol respectively are the same, and L is a positive integer.
  • the determining module 820 is further configured to determine any one of the at least one DCI as the HARQ-ACK information corresponding to at least one of the L DCIs as the Refer to DCI;
  • the determining module 820 is further configured to determine a unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the TCI states contained in the latest J DCIs corresponding to the M DCIs respectively corresponding to the transmission end symbols are the same, and J is a positive integer.
  • the determining module 820 is further configured to determine any one of the at least one DCI as the HARQ-ACK information corresponding to at least one of the J DCIs as the Refer to DCI;
  • the determining module 820 is further configured to determine a unified TCI state used for communication transmission based on the target TCI state included in the reference DCI.
  • the determining module 820 is further configured to determine the reference DCI according to at least one of carrier number, bandwidth part number, sending start time, and sending end time respectively corresponding to the M DCIs.
  • the determination module 820 is further configured to determine the DCI with the smallest corresponding carrier number among the M DCIs as the reference DCI; and/or determine the corresponding bandwidth part among the M DCIs
  • the DCI with the smallest number is determined as the reference DCI; and/or, the DCI with the latest transmission start time among the M DCIs is determined as the reference DCI; and/or, the DCI among the M DCIs is determined as the reference DCI;
  • the corresponding DCI with the latest transmission end time is determined as the reference DCI; and/or, the DCI with the earliest corresponding transmission start time among the M DCIs is determined as the reference DCI; and/or, the Among the M DCIs, the corresponding DCI with the earliest sending end time is determined as the reference DCI.
  • the determining module 820 is further configured to determine the unified TCI state used for communication transmission based on the target TCI state contained in the reference DCI when the HARQ-ACK information corresponding to the reference DCI is ACK.
  • the determining module 820 is further configured to determine the unified TCI state used for communication transmission based on the target TCI state included in the reference DCI after the target time interval after the HARQ-ACK codebook is sent, Wherein, the HARQ-ACK information corresponding to the reference DCI included in the HARQ-ACK codebook is ACK.
  • the TCI state includes at least one of a unified TCI state, a joint TCI state, a separated uplink TCI state, and a separated downlink TCI state.
  • FIG. 10 shows a schematic structural diagram of a communication device 1000 (which may be implemented as the above-mentioned terminal device) provided by an exemplary embodiment of the present disclosure.
  • the communication device 1000 includes: a processor 1010, a receiver 1020, a transmitter 1030, a memory 1040 and bus 1050.
  • the processor 1010 includes one or more processing cores, and the processor 1010 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1020 and the transmitter 1030 can be implemented as a communication component, which can be a communication chip.
  • the memory 1040 is connected to the processor 1010 through a bus 1050 .
  • the memory 1040 may be used to store at least one instruction, and the processor 1010 is used to execute the at least one instruction, so as to implement various steps performed by the terminal in the above method embodiments, or implement various steps performed by the network device in the above method embodiments.
  • volatile or non-volatile storage devices include but not limited to: magnetic or optical disks, electrically erasable and programmable Electrically-Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), read-only Memory (Read-Only Memory, ROM), Magnetic Memory, Flash Memory, Programmable Read-Only Memory (Programmable Read-Only Memory, PROM).
  • EEPROM Electrically-Erasable Programmable Read-Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • SRAM Static Random Access Memory
  • Read-Only Memory ROM
  • Magnetic Memory Magnetic Memory
  • Flash Memory Programmable Read-Only Memory
  • PROM Programmable Read-Only Memory
  • An exemplary embodiment of the present disclosure further provides a system for determining a transmission configuration indication, the system including: a terminal; the terminal includes the apparatus for determining a transmission configuration indication provided in the embodiment shown in FIG. 8 and FIG. 9 .
  • An exemplary embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the At least one program, the code set or the instruction set is loaded and executed by the processor to implement the steps performed by the terminal in the method for determining the transmission configuration instruction provided by the above method embodiments.

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Abstract

本公开提供了一种传输配置指示确定方法、装置、终端及存储介质，涉及通信技术领域。该方法包括：接收网络设备发送的M个下行控制信息DCI，M个DCI中每个DCI包含有传输配置指示TCI状态，M个DCI中包括参考DCI，其中M为正整数；基于参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。本公开针对如何确定通信传输所使用的统一传输配置指示的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证波束一致性，提高终端设备和网络设备之间基于传输配置指示的传输性能。

Description

传输配置指示确定方法、装置、终端及存储介质 技术领域
本申请涉及通信技术领域，特别涉及一种传输配置指示确定方法、装置、终端及存储介质。
背景技术
在通信技术领域，为减少信令开销，引入了通用波束(Common Beam)的使用。例如，基站如果指示一个用于下行的通用波束，那么该波束可以用于终端的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)和至少一部分物理下行控制信道(Physical Downlink Control Channel，PDCCH)以及一些下行参考信号；基站如果指示一个用于上行的通用波束，那么该波束可以用于终端的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)和至少一部分物理上行控制信道(Physical Uplink Control Channel，PUCCH)以及一些上行参考信号。
在相关技术中，通过下行控制信息(Downlink Control Information，DCI)中的传输配置指示状态(Transmission Configuration Indication State，TCI state)来指示通用波束，关于上述通用波束的信息是否正确接收，则需要混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)应答(Acknowledge character，ACK)码本(codebook)携带该DCI对应的HARQ-ACK信息并反馈至基站来确定。
目前，HARQ-ACK码本可以包含多个DCI对应的HARQ-ACK信息，而当一个HARQ-ACK码本中包含了多个DCI的HARQ-ACK信息，且多个DCI中都包含TCI状态指示时，终端以哪个DCI的HARQ-ACK信息为准来确定采用哪个DCI中的TCI状态，从而确定所使用的通用波束，是需要解决的问题。
发明内容
本公开实施例提供了一种传输配置指示确定方法、装置、终端及存储介质，能够解决终端在HARQ-ACK码本包括多个DCI对应的HARQ-ACK信息，且多 个DCI都包含TCI状态指示时，应当如何确定通信传输所使用的通用波束的问题。所述技术方案如下：
根据本公开的一个方面，提供了一种传输配置指示确定方法，应用于终端设备，所述方法包括：
接收网络设备发送的M个下行控制信息DCI，所述M个DCI中每个DCI包含有传输配置指示TCI状态，所述M个DCI中包括参考DCI，其中，M为正整数；
基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
根据本公开的一个方面，提供了一种传输配置指示确定装置，所述装置包括：
接收模块，用于接收网络设备发送的M个下行控制信息DCI，所述M个DCI中每个DCI包含有传输配置指示TCI状态，所述M个DCI中包括参考DCI，其中，M为正整数；
确定模块，用于基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
根据本公开的一方面，提供了一种终端，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上述传输配置指示确定方法。
根据本公开的一方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或所述指令集由处理器加载并执行以实现如上述传输配置指示确定方法。
本公开实施例提供的技术方案带来的有益效果至少包括：
当终端设备接收到网络设备发送的M个DCI，且M个DCI中每个DCI均包含有TCI状态时，终端设备根据M个DCI中的参考DCI所包含的TCI状态来确定通信传输所使用的通用波束，M为正整数。即，本公开针对如何确定通信传输所使用的通用波束的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证波束一致性，提高终端设备和网络设备之间 基于波束的传输性能。
附图说明
为了更清楚地说明本公开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公开的一些实施例，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是本公开一个示例性实施例提供的通信系统的示意图；
图2是本公开一个示例性实施例提供的传输配置指示确定方法的流程图；
图3是本公开另一个示例性实施例提供的传输配置指示确定方法的流程图；
图4是本公开另一个示例性实施例提供的传输配置指示确定方法的流程图；
图5是本公开另一个示例性实施例提供的传输配置指示确定方法的流程图；
图6是本公开另一个示例性实施例提供的传输配置指示确定方法的流程图；
图7是本公开另一个示例性实施例提供的传输配置指示确定方法的流程图；
图8是本公开一个示例性实施例提供的传输配置指示确定装置的结构框图；
图9是本公开另一个示例性实施例提供的传输配置指示确定装置的结构框图；
图10是本公开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。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开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，尽管在本公开可能采用术语第一、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，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。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”。
请参考图1，其示出了本公开一个实施例提供的通信系统的示意图。该通信系统可以包括：终端设备10和网络设备20。
终端设备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设备10。终端设备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设备。
网络设备20是一种部署在接入网中用以为终端设备10提供无线通信功能的装置。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。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。为方便描述，本申请实施例中，上述为终端设备10提供无线通信功能的装置统称为网络设备。网络设备20与终端设备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。终端设备10可以在不同的网络设备20之间进行切换，也即与不同的网络设备20建立连接。
本公开实施例中的“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。本公开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。
在新的无线技术(New Radio，NR)中，特别是通信频段在频率范围2 (frequency range 2)时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束的发送和接收。
在Rel-16中，PDCCH、PDSCH、PUSCH、PUCCH、参考信号等中的任意一种或者多种组合的TCI state都是独立指示的，其中，上述参考信号包括信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)，探测参考信号(Sounding Reference Signal，SRS)，定位参考信号(Positioning Reference Signal，PRS)，追踪参考信号(Tracking Reference Signal，TRS)等。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(pathloss)估计的CSI-RS，CSI-RS还包括周期性发送的，半静态性(semi-persistent)发送的和非周期性发送的CSI-RS；SRS包括用于基于codebook或non-codebook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，SRS还包括周期性发送的，semi-persistent发送的和非周期性发送的SRS。而且PDCCH和PUCCH使用MAC CE(MAC Control Element，MAC控制元件)来激活一个TCI state。而PDSCH和PUSCH是DCI信令来指示其各自的TCI state。
目前为了减少信令开销，希望使用统一/通用TCI状态(unified TCI state)，基站如果指示一个用于下行的unified TCI state，那么该TCI state可以用于终端的PDSCH和至少一部分PDCCH(比如终端专用的PDCCH(User Equipment dedicated PDCCH))以及一些下行参考信号；基站如果指示一个用于上行的unified TCI state，那么该TCI state可以用于终端的PUSCH和至少一部分PUCCH以及一些上行参考信号。unified TCI state目前可能是分离的上行TCI状态(Separate Up Link TCI State)和分离的下行TCI状态(Separate Down Link TCI State)分开指示，或者上下行联合TCI状态(Joint TCI State)联合指示。其中Separate UL TCI State适用于上行信道和/或信号，Separate DL TCI State适用于下行信道和/或信号，Joint TCI State同时适用于上行和下行信道和/或信号。
在现阶段，已经同意使用DCI来指示unified TCI state，而关于该unified TCI state信息是否正确接收，需要通过HARQ-ACK码本中对应该DCI的HARQ-ACK信息来确定。目前，一个HARQ-ACK码本可以包含多个载波(Component Carrier，CC)也即服务小区(Serving Cell)上多个时隙(slot)的DCI对应的HARQ-ACK信息。每个CC上每个slot的DCI对应的HARQ-ACK信息都使用各自独立的 bit。当一个HARQ-ACK码本中包含的HARQ-ACK信息对应的多个DCI中都包含TCI状态指示时，终端以哪个DCI的HARQ-ACK信息为准，以确定采用哪个DCI中的TCI状态，是需要解决的问题。
基于此，本公开提供了一种传输配置指示确定方法，提供了当一个HARQ-ACK码本中包含的HARQ-ACK信息bit对应的多个DCI中都包含TCI状态指示时，为终端如何确定通信传输所使用的统一传输配置指示提供了解决方案。下面，通过几个实施例对本申请提供的技术方案进行介绍说明。
请参考图2，其示出了本公开一个实施例提供的传输配置指示确定方法的流程图。该方法可以应用于图1所示的通信系统中的终端设备。该方法包括如下步骤。
步骤201，接收网络设备发送的M个DCI，M个DCI中每个DCI包含有TCI状态，M个DCI中包括参考DCI。
上述M个DCI用于指示终端设备和网络设备之间使用统一传输配置指示进行通信传输，其中，上述M为正整数。
可选地，上述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI状态、分离的下行TCI状态中的至少一种。
示意性的，上述M个DCI是由网络设备在至少一个时间单元上通过至少一个载波和/或带宽部分(Bandwidth Part，BWP)上的资源发送的。
可选地，上述参考DCI可以是网络设备指定的，也可以是终端设备预设的，还可以是终端设备根据上述M个DCI对应的HARQ-ACK码本确定的，上述HARQ-ACK码本为终端设备在接收到上述M个DCI之后，根据上述M个DCI各自的接收情况或M个DCI各自调度的PDSCH等的接收情况生成的。
步骤202，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
示意性的，上述参考DCI与目标TCI状态对应。
可选地，上述通信传输包括通信信道的上行传输或下行传输，以及参考信号的上行传输或下行传输。在一些实施例中，通信传输与DCI包含的TCI状态对应，当TCI状态为统一TCI状态时，通信传输包括通信信道的上行传输或下行传输，以及参考信号的上行传输或下行传输；当TCI状态为联合TCI状态时， 通信传输包括通信信道的上行传输或下行传输，以及参考信号的上行传输或下行传输；当TCI状态为分离的上行TCI状态时，通信传输为通信信道的上行传输，以及参考信号的上行传输；当TCI状态为分离的下行TCI状态时，通信传输为通信信道的下行传输，以及参考信号的下行传输。
在一些实施例中，当参考DCI为根据上述M个DCI对应的HARQ-ACK码本确定时，终端设备在HARQ-ACK码本发送后的目标时间间隔(T时间)后，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一传输配置指示，其中，HARQ-ACK码本中包含的参考DCI对应的HARQ-ACK信息为ACK，即，参考DCI所指示的统一传输配置指示的信息是被正确接收的。
上述目标时间间隔可以是网络设备指定的，也可以是终端设备预设的，或协议规定的。上述目标时间间隔可以是N个传输符号。
综上所述，本申请实施例提供的传输配置指示确定方法，当终端设备接收到网络设备发送的M个DCI，且M个DCI中每个DCI均包含有TCI状态时，终端设备根据M个DCI中的参考DCI所包含的TCI状态来确定通信传输所使用的统一传输配置指示，M为正整数。即，本公开针对如何确定通信传输所使用的统一传输配置指示的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证传输配置指示一致性，提高终端设备和网络设备之间基于传输配置指示的传输性能。
请参考图3，其示出了本公开一个实施例提供的传输配置指示确定方法的流程图。在本申请实施例中，终端设备接收到的M个DCI中所有DCI包含的TCI状态均相同，M为正整数。该方法包括如下步骤。
步骤301，接收网络设备发送的M个DCI，M个DCI中每个DCI包含有TCI状态。
上述M个DCI用于指示终端设备和网络设备之间使用统一传输配置指示进行通信传输，其中，上述M为正整数。
可选地，上述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI状态、分离的下行TCI状态中的至少一种。
示意性的，上述M个是由网络设备在至少一个时间单元上通过至少一个载波和/或带宽部分上的资源发送的。其中时间单元包括时隙或X个符号，其中X 个符号为小于一个时隙，即X小于14或12。
步骤302，向网络设备发送HARQ-ACK码本，该HARQ-ACK码本包括M个DCI分别对应的HARQ-ACK信息。
可选地，上述HARQ-ACK码本中还包括K个DCI对应的HARQ-ACK信息，其中，上述K个DCI为不包含TCI状态指示的DCI，K为正整数。
可选地，上述M个DCI对应的HARQ-ACK信息可以是确认应答(ACK)或否认应答(NACK)。其中，当HARQ-ACK信息为ACK时，指示终端设备已正确接收DCI所指示的统一传输配置信息和/或正确接收DCI所调度的PDSCH；当HARQ-ACK信息为NACK时，指示终端设备未正确接收DCI所指示的统一传输配置和/或未正确接收DCI所调度的PDSCH。
步骤303，当M个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将至少一个DCI中的任意一个DCI确定为参考DCI。
在本申请实施例中，上述M个DCI中所有DCI包含的TCI状态均相同。
当M个TCI状态均相同的DCI中存在至少一个DCI指示的统一传输配置指示信息为正确接收时，则将上述至少一个DCI中任意一个DCI确定为参考DCI。
示意性的，HARQ-ACK码本的图如表一中的第一行所示，其中，表一中的第二行表示HARQ-ACK信息对应的DCI编号，第三行表示各个DCI中指示的TCI状态编号，第四行指示每个DCI的频域资源对应的载波CC，第五行表示每个DCI发送的时隙编号。表一中所有DCI对应的TCI状态均为TCI state#0，而DCI#2、DCI#4、DCI#5、DCI#6对应的HARQ-ACK信息均为ACK，则参考DCI为上述DCI#2、DCI#4、DCI#5、DCI#6中的任意一个DCI。
表一
NACK ACK NACK ACK ACK ACK
DCI#1 DCI#2 DCI#3 DCI#4 DCI#5 DCI#6
TCI state#0 TCI state#0 TCI state#0 TCI state#0 TCI state#0 TCI state#0
on CC1 on CC2 on CC3 on CC1 on CC2 on CC3
slot#1 slot#1 slot#1 slot#2 slot#2 slot#2
步骤304，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
示意性的，上述参考DCI与目标TCI状态对应。
可选地，上述通信传输包括通信信道的上行传输或下行传输，以及参考信号的上行传输或下行传输。
在本申请实施例中，终端设备在HARQ-ACK码本发送后的目标时间间隔(T时间)后，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一传输配置指示，其中，HARQ-ACK码本中包含的参考DCI对应的HARQ-ACK信息为ACK，即，参考DCI所指示的统一传输配置指示信息是正确接收的。
上述目标时间间隔可以是网络设备指定的，也可以是终端设备预设的或协议规定的。上述目标时间间隔可以是N个传输符号。
综上所述，本申请实施例提供的传输配置指示确定方法，当终端设备接收到网络设备发送的M个DCI，且M个DCI中每个DCI均包含有TCI状态时，终端设备根据M个DCI中的参考DCI所包含的TCI状态来确定通信传输所使用的统一传输配置指示，M为正整数。即，本公开提出了在HARQ-ACK码本中包括多个DCI对应的HARQ-ACK信息时，针对如何确定通信传输所使用的统一传输配置指示的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证传输配置指示一致性，提高终端设备和网络设备之间基于传输配置指示的传输性能。
在本申请实施例中，在HARQ-ACK码本中，只要存在一个DCI对应的HARQ-ACK信息为ACK时，终端即可在上述ACK发送后目标时间间隔后，开始使用参考DCI中指示的TCI状态来确定通信传输所使用的统一传输配置指示。
请参考图4，其示出了本公开一个实施例提供的传输配置指示确定方法的流程图。在本申请实施例中，终端设备接收到的M个DCI分别对应的发送时隙中，最后一个时隙发送的N个DCI包含的TCI状态相同，N和M均为正整数。该方法包括如下步骤。
步骤401，接收网络设备发送的M个DCI，M个DCI中每个DCI包含有TCI状态。
上述M个DCI用于指示终端设备和网络设备之间使用统一传输配置指示进行通信传输，其中，上述M为正整数。
可选地，上述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI 状态、分离的下行TCI状态中的至少一种。
示意性的，上述M个是由网络设备在至少一个时间单元上通过至少一个载波和/或带宽部分上的资源发送的。
步骤402，向网络设备发送HARQ-ACK码本，该HARQ-ACK码本包括M个DCI分别对应的HARQ-ACK信息。
可选地，上述HARQ-ACK码本中还包括K个DCI对应的HARQ-ACK信息，其中，上述K个DCI为不包含TCI状态指示的DCI，K为正整数。
可选地，上述HARQ-ACK信息可以是确认应答(ACK)或否认应答(NACK)。
步骤403，根据M个DCI分别对应的发送时隙，确定最后一个时隙发送的N个DCI。
终端设备获取M个DCI分别对应的发送时隙，并从中确定出最后一个时隙发送的N个DCI。其中上述N个DCI包含的TCI状态均相同，N为正整数。
在本申请实施例中，仅以最后一个时隙为例进行说明，在一些实施例中，上述的最后一个时隙也可以替换为第一个时隙或所有时隙中指定的任意一个时隙，在此不进行限定。
步骤404，当N个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将至少一个DCI中的任意一个DCI确定为参考DCI。
在本申请实施例中，上述M个DCI各自对应有发送时隙，一个DCI仅与一个时隙对应，一个时隙可用于发送多个DCI。
在本申请实施例中，上述M个DCI分别对应的发送时隙中，最后一个时隙发送的N个DCI包含的TCI状态相同。
当上述最后一个时隙发送的N个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将上述至少一个DCI中任意一个DCI确定为参考DCI。
示意性的，HARQ-ACK码本的图如表二中的第一行所示，其中，表一中的第二行表示HARQ-ACK信息对应的DCI编号，第三行表示各个DCI中指示的TCI状态编号，第四行指示每个DCI的频域资源对应的载波CC，第五行表示每个DCI发送的时隙编号。表二中最后一个时隙slot#2发送的DCI#4、DCI#5、DCI#6的TCI状态均为TCI state#0，且DCI#4和DCI#6对应的HARQ-ACK信 息为ACK，则将DCI#4或DCI#6中的任意一个确定为参考DCI。
表二
NACK ACK NACK ACK NACK ACK
DCI#1 DCI#2 DCI#3 DCI#4 DCI#5 DCI#6
TCI state#1 TCI state#2 TCI state#3 TCI state#0 TCI state#0 TCI state#0
on CC1 on CC2 on CC3 on CC1 on CC2 on CC3
slot#1 slot#1 slot#1 slot#2 slot#2 slot#2
在一些实施例中，当上述N个DCI中存在至少一个DCI的HARQ-ACK信息为ACK，将上述至少一个DCI确定为参考DCI。
步骤405，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
可选地，上述通信传输包括通信信道的上行传输或下行传输，以及参考信号的上行传输或下行传输。
在本申请实施例中，终端设备在HARQ-ACK码本发送后的目标时间间隔(T时间)后，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一传输配置指示，其中，HARQ-ACK码本中包含的参考DCI对应的HARQ-ACK信息为ACK，即，参考DCI所指示的统一传输配置指示信息是被正确接收的。
上述目标时间间隔可以是网络设备指定的，也可以是终端设备预设的或协议规定的。上述目标时间间隔可以是N个传输符号。
综上所述，本申请实施例提供的传输配置指示确定方法，当终端设备接收到网络设备发送的M个DCI，且M个DCI中每个DCI均包含有TCI状态时，终端设备根据M个DCI中的参考DCI所包含的TCI状态来确定通信传输所使用的统一传输配置指示，M为正整数。即，本公开提出了在HARQ-ACK码本中包括多个DCI对应的HARQ-ACK信息时，针对如何确定通信传输所使用的统一传输配置指示的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证传输配置指示一致性，提高终端设备和网络设备之间基于传输配置指示的传输性能。
在本申请实施例中，在HARQ-ACK码本中，只要最后一个时隙发送的DCI中存在一个DCI对应的HARQ-ACK信息为ACK，终端即可在上述ACK发送后目标时间间隔后，开始使用参考DCI中指示的TCI状态来确定通信传输所使 用的通用波束。
请参考图5，其示出了本公开一个实施例提供的传输配置指示确定方法的流程图。在本申请实施例中，终端设备接收到的M个DCI分别对应的发送起始符号最晚的L个DCI包含的TCI状态相同，L和M均为正整数。该方法包括如下步骤。
步骤501，接收网络设备发送的M个DCI，M个DCI中每个DCI包含有TCI状态。
上述M个DCI用于指示终端设备和网络设备之间使用统一传输配置指示进行通信传输，其中，上述M为正整数。
可选地，上述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI状态、分离的下行TCI状态中的至少一种。
示意性的，上述M个是由网络设备在至少一个时间单元上通过至少一个载波和/或带宽部分上的资源发送的。
步骤502，向网络设备发送HARQ-ACK码本，该HARQ-ACK码本包括M个DCI分别对应的HARQ-ACK信息。
可选地，上述HARQ-ACK码本中还包括K个DCI对应的HARQ-ACK信息，其中，上述K个DCI为不包含TCI状态指示的DCI，K为正整数。
可选地，上述HARQ-ACK信息可以是确认应答(ACK)或否认应答(NACK)。
步骤503，根据M个DCI分别对应的发送起始符号，确定发送起始符号最晚的L个DCI。
终端设备确定M个DCI分别对应的发送起始符号，并从中确定出发送起始符号最晚的L个DCI。其中，上述L个DCI包含的TCI状态均相同，L为正整数。
可选地，上述发送起始符号最晚的DCI可以为发送DCI的第一个时隙中的发送起始符号最晚的DCI，也可以为发送DCI的时隙中最后一个时隙中的发送起始符号最晚的DCI，也可以为发送DCI的时隙中任意一个指定时隙中的发送起始符号最晚的DCI，在此不进行限定。
在本申请实施例中，仅以发送起始符号最晚为例进行说明，在一些实施例 中，上述发送起始符号最晚的DCI可以替换为发送起始符号最早的DCI，在此不进行限定。
步骤504，当L个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将至少一个DCI中的任意一个DCI确定为参考DCI。
在本申请实施例中，上述M个DCI各自对应有发送时隙，一个DCI仅与一个时隙对应，一个时隙可用于发送多个DCI。其中，上述同一时隙中发送的DCI还可能对应有不同的发送起始符号。
在本申请实施例中，上述M个DCI分别对应的发送起始符号最晚的L个DCI包含的TCI状态相同。其中L个DCI为M个DCI中发送时隙为最后的一个时隙中的DCI中发送起始符号最晚的L个DCI。
当上述发送起始符号最晚的L个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将上述至少一个DCI中任意一个DCI确定为参考DCI。
示意性的，HARQ-ACK码本的图如表三中的第一行所示，其中，表一中的第二行表示HARQ-ACK信息对应的DCI编号，第三行表示各个DCI中指示的TCI状态编号，第四行指示每个DCI的频域资源对应的载波CC，第五行表示每个DCI发送的时隙编号。表三中时隙slot#2为最晚的时隙，其中DCI的最晚的起始符号为symbol#7，其对应的DCI包括DCI#5和DCI#6，其中，DCI#6对应的HARQ-ACK信息为ACK，则将DCI#6确定为参考DCI。
表三
Figure PCTCN2021126807-appb-000001
在一些实施例中，当上述L个DCI中存在至少一个DCI的HARQ-ACK信息为ACK，将上述至少一个DCI中的任意一个DCI确定为参考DCI。
步骤505，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
可选地，上述通信传输包括通信信道的上行传输或下行传输，以及信号的上行传输或下行传输。
在本申请实施例中，终端设备在HARQ-ACK码本发送后的目标时间间隔(T时间)后，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一传输配置指示，其中，HARQ-ACK码本中包含的参考DCI对应的HARQ-ACK信息为ACK，即，参考DCI所指示的统一传输配置指示信息是被正确接收的。
上述目标时间间隔可以是网络设备指定的，也可以是终端设备预设的或协议规定的。上述目标时间间隔可以是N个传输符号。
综上所述，本申请实施例提供的传输配置指示确定方法，当终端设备接收到网络设备发送的M个DCI，且M个DCI中每个DCI均包含有TCI状态时，终端设备根据M个DCI中的参考DCI所包含的TCI状态来确定通信传输所使用的统一传输配置指示，M为正整数。即，本公开提出了在HARQ-ACK码本中包括多个DCI对应的HARQ-ACK信息时，针对如何确定通信传输所使用的统一传输配置指示的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证传输配置指示一致性，提高终端设备和网络设备之间基于传输配置指示的传输性能。
在本申请实施例中，在HARQ-ACK码本中，只要发送起始符号最晚的DCI中有一个DCI对应的HARQ-ACK信息为ACK，终端即可在上述ACK发送后目标时间间隔后，开始使用参考DCI中指示的TCI状态来确定通信传输所使用的统一传输配置指示。
请参考图6，其示出了本公开一个实施例提供的传输配置指示确定方法的流程图。在本申请实施例中，终端设备接收到的M个DCI分别对应的发送结束符号最晚的J个DCI包含的TCI状态相同，J和M均为正整数。该方法包括如下步骤。
步骤601，接收网络设备发送的M个DCI，M个DCI中每个DCI包含有TCI状态。
上述M个DCI用于指示终端设备和网络设备之间使用统一传输配置指示进行通信传输，其中，上述M为正整数。
可选地，上述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI 状态、分离的下行TCI状态中的至少一种。
示意性的，上述M个是由网络设备在至少一个时间单元上通过至少一个载波和/或带宽部分上的资源发送的。
步骤602，向网络设备发送HARQ-ACK码本，该HARQ-ACK码本包括M个DCI分别对应的HARQ-ACK信息。
可选地，上述HARQ-ACK码本中还包括K个DCI对应的HARQ-ACK信息，其中，上述K个DCI为不包含TCI状态指示的DCI，K为正整数。
可选地，上述HARQ-ACK信息可以是确认应答(ACK)或否认应答(NACK)。
步骤603，根据M个DCI分别对应的发送结束符号，确定发送结束符号最晚的J个DCI。
终端设备获取M个DCI分别对应的发送结束符号，并从中确定出发送结束符号最晚的J个DCI。其中，上述J个DCI包含的TCI状态均相同，J为正整数。
可选地，上述发送结束符号最晚的DCI可以为发送DCI的第一个时隙中的发送结束符号最晚的DCI，或发送DCI的最后一个时隙中发送结束符号最晚的DCI，或发送DCI的时隙中任意一个指定时隙中发送结束符号最晚的DCI。
在本申请实施例中，仅以发送结束符号最晚为例进行说明，在一些实施例中，上述发送结束符号最晚的DCI可以替换为发送结束符号最早的DCI，在此不进行限定。
步骤604，当J个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将至少一个DCI中的任意一个DCI确定为参考DCI。
在本申请实施例中，上述M个DCI各自对应有发送时隙，一个DCI仅与一个时隙对应，一个时隙可用于发送多个DCI。其中，上述在同一个时隙发送的多个DCI还可能对应有不同的发送结束符号。
在本申请实施例中，上述M个DCI分别对应的发送结束符号最晚的J个DCI包含的TCI状态相同。其中J个DCI为M个DCI中发送时隙为最后的一个时隙中的DCI中发送结束符号最晚的J个DCI。
当上述发送结束符号最晚的J个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将上述至少一个DCI中任意一个DCI确定为参考DCI。
示意性的，HARQ-ACK码本的图如表四中的第一行所示，其中，表四中的第二行表示HARQ-ACK信息对应的DCI编号，第三行表示各个DCI中指示的TCI状态编号，第四行指示每个DCI的频域资源对应的载频CC，第五行表示每个DCI发送的时隙编号。表四中时隙slot#2为最晚的时隙，其中最晚的结束符号为symbol#9，其对应的DCI包括DCI#5和DCI#6，其中，DCI#6对应的HARQ-ACK信息为ACK，则将DCI#6确定为参考DCI。
表四
Figure PCTCN2021126807-appb-000002
在一些实施例中，当上述J个DCI中存在至少一个DCI的HARQ-ACK信息为ACK，将上述至少一个DCI中的任意一个DCI确定为参考DCI。
步骤605，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
可选地，上述通信传输包括通信信道的上行传输或下行传输，以及参考信号的上行传输或下行传输。
在本申请实施例中，终端设备在HARQ-ACK码本发送后的目标时间间隔(T时间)后，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一传输配置指示，其中，HARQ-ACK码本中包含的参考DCI对应的HARQ-ACK信息为ACK，即，参考DCI所指示的统一传输配置指示信息是被正确接收的。
上述目标时间间隔可以是网络设备指定的，也可以是终端设备预设的或协议规定的。上述目标时间间隔可以是N个传输符号。
综上所述，本申请实施例提供的传输配置指示确定方法，当终端设备接收到网络设备发送的M个DCI，且M个DCI中每个DCI均包含有TCI状态时，终端设备根据M个DCI中的参考DCI所包含的TCI状态来确定通信传输所使用的统一传输配置指示，M为正整数。即，本公开提出了在HARQ-ACK码本中包括多个DCI对应的HARQ-ACK信息时，针对如何确定通信传输所使用的统 一传输配置指示的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证传输配置指示一致性，提高终端设备和网络设备之间基于传输配置指示的传输性能。
在本申请实施例中，在HARQ-ACK码本中，只要结束符号最晚发送的DCI中有一个DCI对应的HARQ-ACK信息为ACK，终端即可在上述ACK发送后目标时间间隔后，开始使用参考DCI中指示的TCI状态来确定通信传输所使用的统一传输配置指示。
请参考图7，其示出了本公开一个实施例提供的传输配置指示确定方法的流程图。该方法包括如下步骤。
步骤701，接收网络设备发送的M个DCI，M个DCI中每个DCI包含有TCI状态。
上述M个DCI用于指示终端设备和网络设备之间使用统一传输配置指示进行通信传输，其中，上述M为正整数。
可选地，上述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI状态、分离的下行TCI状态中的至少一种。
示意性的，上述M个是由网络设备在至少一个时间单元上通过至少一个载波和/或带宽部分上的资源发送的。
步骤702，向网络设备发送HARQ-ACK码本，该HARQ-ACK码本包括M个DCI分别对应的HARQ-ACK信息。
可选地，上述HARQ-ACK码本中还包括K个DCI对应的HARQ-ACK信息，其中，上述K个DCI为不包含TCI状态指示的DCI，K为正整数。
可选地，上述HARQ-ACK信息可以是确认应答(ACK)或否认应答(NACK)。
步骤703，根据M个DCI分别对应的载波编号、带宽部分编号、发送起始时间和发送结束时间中的至少一项来确定参考DCI。
可选地，参考DCI的确定包括以下方式中的至少一种：
(一)将M个DCI中对应的载波编号最小的DCI确定为参考DCI。
(二)将M个DCI中对应的带宽部分编号最小的DCI确定为参考DCI。
(三)将M个DCI中对应的发送起始时间最晚的DCI确定为参考DCI。
在一些实施例中，M个DCI分别对应有发送起始时间，该发送起始时间指示网络设备向终端设备发送该DCI时的起始时隙或起始符号。
(四)将M个DCI中对应的发送结束时间最晚的DCI确定为参考DCI。
在一些实施例中，M个DCI分别对应有发送结束时间，该发送结束时间指示网络设备向终端设备发送该DCI时的结束时隙或结束符号。
(五)将M个DCI中对应的发送起始时间最早的DCI确定为参考DCI。
在一些实施例中，M个DCI分别对应有发送起始时间，该发送起始时间指示网络设备向终端设备发送该DCI时的起始时隙或起始符号。
(六)将M个DCI中对应的发送结束时间最早的DCI确定为参考DCI。
在一些实施例中，M个DCI分别对应有发送结束时间，该发送结束时间指示网络设备向终端设备发送该DCI时的结束时隙或结束符号。
示意性的，参考DCI可以根据上述载波编号、带宽部分编号、发送起始时间和发送结束时间中的一项确定，也可以根据多项组合确定，在此不进行限定。
当根据上述多项组合确定参考DCI时，可以根据每项分别确定多个候选DCI，再根据多项从多个候选DCI中确定参考DCI。
例如，以上述第一项和第四项组合确定为例，将M个DCI中对应的载波编号最小的至少一个DCI确定为第一候选DCI，将M个DCI中对应的发送结束时间最晚的至少一个DCI确定为第四候选DCI，将同时为第一候选DCI和第二候选DCI的一个DCI确定为参考DCI。
又例如，上述组合中每项分别对应不同的权重，根据上述权重从候选DCI中确定出参考DCI，以上述四项组合确定为例，四项的权重关系为载波编号的权重＞带宽部分的权重＞发送起始时间的权重＞发送结束时间的权重，则，根据载波编号确定出至少一个第一候选DCI，当有多个第一候选DCI时，再根据带宽部分的编号从第一候选DCI中选出至少一个第二候选DCI，依次下去，直到只剩一个候选DCI，将最后剩下的候选DCI确定为参考DCI。
步骤704，当参考DCI对应的HARQ-ACK信息为ACK时，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
可选地，上述通信传输包括通信信道的上行传输或下行传输，以及参考信号的上行传输或下行传输。
在本申请实施例中，终端设备在HARQ-ACK码本发送后的目标时间间隔(T 时间)后，基于参考DCI包含的目标TCI状态确定通信传输所使用的统一传输配置指示，其中，HARQ-ACK码本中包含的参考DCI对应的HARQ-ACK信息为ACK，即，参考DCI所指示的统一传输配置指示信息是被正确接收的。
上述目标时间间隔可以是网络设备指定的，也可以是终端设备预设的或协议规定的。上述目标时间间隔可以是N个传输符号。
在一些实施例中，当确定的参考DCI对应的HARQ-ACK信息为NACK时，终端设备重新确定参考DCI，或者，终端设备重新接收网络设备发送的DCI，以确定通信传输所使用的统一传输配置指示。
综上所述，本申请实施例提供的传输配置指示确定方法，当终端设备接收到网络设备发送的M个DCI，且M个DCI中每个DCI均包含有TCI状态时，终端设备根据M个DCI中的参考DCI所包含的TCI状态来确定通信传输所使用的统一传输配置指示，M为正整数。即，本公开提出了在HARQ-ACK码本中包括多个DCI对应的HARQ-ACK信息时，针对如何确定通信传输所使用的统一传输配置指示的问题给出了解决方案，使得终端设备和网络设备在TCI状态采用时间上达成统一，保证传输配置指示一致性，提高终端设备和网络设备之间基于传输配置指示的传输性能。
图8是本公开一个示例性实施例提供的传输配置指示确定装置的结构框图，如图8所示，以该装置用于终端为例，上述装置800包括：接收模块810和确定模块820。
接收模块810，用于接收网络设备发送的M个下行控制信息DCI，所述M个DCI中每个DCI包含有传输配置指示TCI状态，所述M个DCI中包括参考DCI，其中，M为正整数；
确定模块820，用于基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
在一个示例中，如图9所示，所述装置800还包括：
发送模块830，用于向所述网络设备发送混合自动重传请求HARQ应答ACK码本，所述HARQ-ACK码本包括所述M个DCI分别对应的HARQ-ACK信息。
在一个示例中，所述M个DCI中所有DCI包含的TCI状态相同。
在一个示例中，所述确定模块820，还用于当所述M个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
所述确定模块820，还用于基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
在一个示例中，所述M个DCI分别对应的发送时隙中，最后一个时隙发送的N个DCI包含的TCI状态相同，N为正整数。
在一个示例中，所述确定模块820，还用于当所述N个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
所述确定模块820，还用于基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
在一个示例中，所述M个DCI分别对应的发送起始符号最晚的L个DCI包含的TCI状态相同，L为正整数。
在一个示例中，所述确定模块820，还用于当所述L个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
所述确定模块820，还用于基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
在一个示例中，所述M个DCI分别对应的发送结束符号最晚的J个DCI包含的TCI状态相同，J为正整数。
在一个示例中，所述确定模块820，还用于当所述J个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
所述确定模块820，还用于基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
在一个示例中，所述确定模块820，还用于根据所述M个DCI分别对应的载波编号、带宽部分编号、发送起始时间和发送结束时间中的至少一项来确定所述参考DCI。
在一个示例中，所述确定模块820，还用于将所述M个DCI中对应的载波 编号最小的DCI确定为所述参考DCI；和/或，将所述M个DCI中对应的带宽部分编号最小的DCI确定为所述参考DCI；和/或，将所述M个DCI中对应的发送起始时间最晚的DCI确定为所述参考DCI；和/或，将所述M个DCI中对应的发送结束时间最晚的DCI确定为所述参考DCI；和/或，将所述M个DCI中对应的发送起始时间最早的DCI确定为所述参考DCI；和/或，将所述M个DCI中对应的发送结束时间最早的DCI确定为所述参考DCI。
在一个示例中，所述确定模块820，还用于当所述参考DCI对应的HARQ-ACK信息为ACK时，基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
在一个示例中，所述确定模块820，还用于在所述HARQ-ACK码本发送后的目标时间间隔后，基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态，其中，所述HARQ-ACK码本中包含的所述参考DCI对应的HARQ-ACK信息为ACK。
在一个示例中，所述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI状态、分离的下行TCI状态中的至少一种。
图10示出了本公开一个示例性实施例提供的通信设备1000(可以实现为上述终端设备)的结构示意图，该通信设备1000包括：处理器1010、接收器1020、发射器1030、存储器1040和总线1050。
处理器1010包括一个或者一个以上处理核心，处理器1010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1020和发射器1030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1040通过总线1050与处理器1010相连。
存储器1040可用于存储至少一个指令，处理器1010用于执行该至少一个指令，以实现上述方法实施例中终端执行的各个步骤，或者实现上述方法实施例中网络设备执行的各个步骤。
此外，存储器1040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(Electrically-Erasable Programmable Read-Only Memory， EEPROM)，可擦除可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)，静态随时存取存储器(Static Random Access Memory，SRAM)，只读存储器(Read-Only Memory，ROM)，磁存储器，快闪存储器，可编程只读存储器(Programmable Read-Only Memory，PROM)。
本公开一示例性实施例还提供了一种传输配置指示确定系统，所述系统包括：终端；所述终端包括如图8、图9所示实施例提供的传输配置指示确定装置。
本公开一示例性实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现上述各个方法实施例提供的传输配置指示确定方法中由终端执行的步骤。
应当理解的是，在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (18)

  1. 一种传输配置指示确定方法，其特征在于，应用于终端设备，所述方法包括：
    接收网络设备发送的M个下行控制信息DCI，所述M个DCI中每个DCI包含有传输配置指示TCI状态，所述M个DCI中包括参考DCI，其中，M为正整数；
    基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    向所述网络设备发送混合自动重传请求HARQ应答ACK码本，所述HARQ-ACK码本包括所述M个DCI分别对应的HARQ-ACK信息。
  3. 根据权利要求2所述的方法，其特征在于，所述M个DCI中所有DCI包含的TCI状态相同。
  4. 根据权利要求3所述的方法，其特征在于，所述基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态，包括：
    当所述M个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
    基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
  5. 根据权利要求2所述的方法，其特征在于，所述M个DCI分别对应的发送时隙中，最后一个时隙发送的N个DCI包含的TCI状态相同，N为正整数。
  6. 根据权利要求5所述的方法，其特征在于，所述基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态，包括：
    当所述N个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时， 将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
    基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
  7. 根据权利要求2所述的方法，其特征在于，所述M个DCI分别对应的发送起始符号最晚的L个DCI包含的TCI状态相同，L为正整数。
  8. 根据权利要求7所述的方法，其特征在于，所述基于所述参考DCI含的目标TCI状态确定通信传输所使用的统一TCI状态，包括：
    当所述L个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
    基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
  9. 根据权利要求2所述的方法，其特征在于，所述M个DCI分别对应的发送结束符号最晚的J个DCI包含的TCI状态相同，J为正整数。
  10. 根据权利要求9所述的方法，其特征在于，所述基于所述参考DCI含的目标TCI状态确定通信传输所使用的统一TCI状态，包括：
    当所述J个DCI中存在至少一个DCI对应的HARQ-ACK信息为ACK时，将所述至少一个DCI中的任意一个DCI确定为所述参考DCI；
    基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
  11. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    根据所述M个DCI分别对应的载波编号、带宽部分编号、发送起始时间和发送结束时间中的至少一项来确定所述参考DCI。
  12. 根据权利要求11所述的方法，其特征在于，所述根据所述M个DCI分别对应的载波编号、带宽部分编号、发送起始时间和发送结束时间中的至少一 项来确定所述参考DCI，包括：
    将所述M个DCI中对应的载波编号最小的DCI确定为所述参考DCI；
    或者，
    将所述M个DCI中对应的带宽部分编号最小的DCI确定为所述参考DCI；
    或者，
    将所述M个DCI中对应的发送起始时间最晚的DCI确定为所述参考DCI；
    或者，
    将所述M个DCI中对应的发送结束时间最晚的DCI确定为所述参考DCI；
    或者，
    将所述M个DCI中对应的发送起始时间最早的DCI确定为所述参考DCI；
    或者，
    将所述M个DCI中对应的发送结束时间最早的DCI确定为所述参考DCI。
  13. 根据权利要求12所述的方法，其特征在于，所述基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态，包括：
    当所述参考DCI对应的HARQ-ACK信息为ACK时，基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
  14. 根据权利要求2至13任一所述的方法，其特征在于，所述基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态，包括：
    在所述HARQ-ACK码本发送后的目标时间间隔后，基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态，其中，所述HARQ-ACK码本中包含的所述参考DCI对应的HARQ-ACK信息为ACK。
  15. 根据权利要求1至13任一所述的方法，其特征在于，所述TCI状态包括统一TCI状态、联合TCI状态、分离的上行TCI状态、分离的下行TCI状态中的至少一种。
  16. 一种传输配置指示确定装置，其特征在于，所述装置包括：
    接收模块，用于接收网络设备发送的M个下行控制信息DCI，所述M个 DCI中每个DCI包含有传输配置指示TCI状态，所述M个DCI中包括参考DCI，其中，M为正整数；
    确定模块，用于基于所述参考DCI包含的目标TCI状态确定通信传输所使用的统一TCI状态。
  17. 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15任一所述的传输配置指示确定方法。
  18. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或所述指令集由处理器加载并执行以实现如权利要求1至15任一所述的传输配置指示确定方法。
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