WO2023226047A1 - 信道传输方法、装置、设备及可读存储介质 - Google Patents

信道传输方法、装置、设备及可读存储介质 Download PDF

Info

Publication number
WO2023226047A1
WO2023226047A1 PCT/CN2022/095769 CN2022095769W WO2023226047A1 WO 2023226047 A1 WO2023226047 A1 WO 2023226047A1 CN 2022095769 W CN2022095769 W CN 2022095769W WO 2023226047 A1 WO2023226047 A1 WO 2023226047A1
Authority
WO
WIPO (PCT)
Prior art keywords
pdcch
pdcch candidate
indication information
candidate
tci
Prior art date
Application number
PCT/CN2022/095769
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/CN2022/095769 priority Critical patent/WO2023226047A1/zh
Priority to CN202280001922.7A priority patent/CN115136539A/zh
Publication of WO2023226047A1 publication Critical patent/WO2023226047A1/zh

Links

Images

Classifications

    • 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
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present disclosure relates to the field of communications, and in particular to a channel transmission method, device, equipment and readable storage medium.
  • TCI Transmission Configuration Indication
  • Rel-17 only considers a set of TCI state indication methods for a single Transmission and Receiving Point (TRP).
  • Embodiments of the present disclosure provide a channel transmission method, device, equipment and readable storage medium, which can improve the transmission accuracy of PDCCH.
  • the technical solutions are as follows:
  • a channel transmission method which is executed by a terminal.
  • the method includes:
  • Receive first configuration information the first configuration information is used to configure N search space sets with link relationships, each of the search space sets includes one physical downlink control channel PDCCH candidate, and N is an integer greater than 1;
  • Receive indication information and when the indication information indicates a set of transmission configuration indicating TCI status, determine a reference PDCCH candidate from the N PDCCH candidates for transmission.
  • a channel transmission method which is executed by the access network device.
  • the method includes:
  • each search space set includes a physical downlink control channel PDCCH candidate, and N is an integer greater than 1;
  • Instruction information is sent to the terminal, and when the instruction information indicates a set of transmission configuration indication status TCI status, a reference PDCCH candidate is determined from N PDCCH candidates for transmission.
  • a channel transmission device includes:
  • a receiving module configured to receive first configuration information.
  • the first configuration information is used to configure N search space sets with link relationships.
  • Each of the search space sets includes a physical downlink control channel PDCCH candidate, and N is greater than 1. an integer;
  • the receiving module is also configured to receive indication information, and determine a reference PDCCH candidate from N PDCCH candidates for transmission when the indication information indicates a set of transmission configuration indicating TCI status.
  • a channel transmission device includes:
  • a sending module configured to send first configuration information to the terminal.
  • the first configuration information is used to configure N search space sets with link relationships.
  • Each search space set includes a physical downlink control channel PDCCH candidate, and N is greater than 1. an integer;
  • the sending module is also configured to send indication information to the terminal.
  • the indication information indicates a set of transmission configuration indication status TCI status, determine a reference PDCCH candidate from N PDCCH candidates for transmission.
  • a terminal that includes:
  • transceiver coupled to the processor
  • the processor is configured to load and execute executable instructions to implement the channel transmission method as described in the above embodiments of the present disclosure.
  • an access network device is provided, and the access network device includes:
  • transceiver coupled to the processor
  • the processor is configured to load and execute executable instructions to implement the channel transmission method as described in the above embodiments of the present disclosure.
  • a computer-readable storage medium stores at least one instruction, at least a program, a code set or an instruction set.
  • the at least one instruction, at least a program, code set or instruction set is stored in the computer-readable storage medium.
  • the set is loaded and executed by the processor to implement the channel transmission method as described in the above embodiments of the present disclosure.
  • the indication information indicates a set of TCI state
  • for PDCCH reception if multiple SS sets with link relationships are configured, when the terminal uses this set of TCI state to receive the PDCCH, a reasonable reference method is used to determine the PDCCH candidate. This enables the terminal and the base station to maintain a consistent understanding of the use of Reference PDCCH candidate, thereby improving the signal quality of Multi-TRP transmission based on unified TCI state.
  • Figure 1 is a block diagram of a communication system provided by an exemplary embodiment of the present disclosure
  • Figure 2 is a flow chart of a channel transmission method provided by an exemplary embodiment of the present disclosure
  • Figure 3 is a schematic diagram of a PDCCH channel provided by an exemplary embodiment of the present disclosure.
  • Figure 4 is a schematic diagram of a PDCCH channel provided by another exemplary embodiment of the present disclosure.
  • Figure 5 is a flow chart of a channel transmission method provided by another exemplary embodiment of the present disclosure.
  • Figure 6 is a flow chart of a channel transmission method provided by another exemplary embodiment of the present disclosure.
  • Figure 7 is a structural block diagram of a channel transmission device provided by an exemplary embodiment of the present disclosure.
  • Figure 8 is a structural block diagram of a channel transmission device provided by another exemplary embodiment of the present disclosure.
  • Figure 9 is a structural block diagram of a communication device illustrating an exemplary embodiment of the present disclosure.
  • Figure 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present disclosure.
  • the communication system may include: a core network 11, an access network 12 and a terminal 13.
  • the core network 11 includes several core network devices 110 .
  • the core network equipment 110 includes equipment such as access and mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), and user plane management function (User Plane Function, UPF).
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • Core Network 11 also includes Location Management Function (LMF).
  • AMF is used to control terminal access permissions and switching functions
  • SMF is used to provide server continuity and uninterrupted user experience of the server, such as: IP address and anchor point changes
  • LMF is used to support positioning calculations, starting from the terminal Get downstream positioning measurements or positioning estimates.
  • the access network 12 includes several access network devices 120 .
  • the access network device 120 may be a base station, which is a device deployed in the access network to provide wireless communication functions for terminals.
  • Base stations can include various forms of macro base stations, micro base stations, relay stations, access points, transmission reception points (Transmission Reception Point, TRP), etc.
  • TRP Transmission Reception Point
  • the names of equipment with base station functions may be different.
  • LTE Long Term Evolution
  • NR New Radio
  • the name "base station” may describe and change.
  • the above-mentioned devices that provide wireless communication functions for terminals are collectively referred to as access network equipment.
  • the terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, Internet of Things (IoT) devices, Industrial Internet of Things (IIoT) devices or connected to Other processing equipment of wireless modems, as well as various forms of user equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal (terminal device), etc.
  • IoT Internet of Things
  • IIoT Industrial Internet of Things
  • terminal devices may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, Internet of Things (IoT) devices, Industrial Internet of Things (IIoT) devices or connected to Other processing equipment of wireless modems, as well as various forms of user equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal (terminal device), etc.
  • the access network device 120 and the terminal device 13 communicate with each other through some air interface technology, such as the Uu interface.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA broadband code division multiple access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced long Term Evolution
  • NR New Radio
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • TCI state may include Quasi co-location (QCL) type information.
  • QCL Type A, B, and C are related to at least one of Doppler shift (doppler shift), Doppler spread (doppler spread), average delay (average delay), and delay spread (delay spread).
  • QCL Type D is related to the spatial Rx parameter.
  • physical downlink control channel Physical Downlink Control Channel, PDCCH
  • physical downlink shared channel Physical Downlink Shared Channel
  • Physical Uplink Shared Channel Physical Uplink Shared Channel
  • PUSCH Physical Uplink Control Channel
  • Physical Uplink Control Channel Physical Uplink Control Channel
  • TCI state or spatial relation information of each reference signal are independently indicated, where the reference signal includes the Channel State Information Reference Signal (CSI-RS) ), Sounding Reference Signal (SRS), Positioning Reference Signal (PRS), Timing Reference Signal (TRS), etc.
  • CSI-RS Channel State Information Reference Signal
  • SRS Sounding Reference Signal
  • PRS Positioning Reference Signal
  • TRS Timing Reference Signal
  • CSI-RS includes CSI-RS used for channel state information measurement Or CSI-RS for beam measurement or CSI-RS for path loss estimation; SRS includes SRS for channel state information measurement based on codebook or non-codebook (non-codebook) or SRS for beam measurements or SRS for positioning measurements.
  • PDCCH and PUCCH use the Medium Access Control Element (MAC CE) to activate a TCI state or spatial relation information.
  • PDSCH and PUSCH are downlink control information (DCI) signaling to indicate their respective TCI state or spatial relation information.
  • DCI downlink control information
  • the unified TCI state can be a separate indication for uplink and downlink, or a joint indication for uplink and downlink. That is, if the base station indicates a TCI state for downlink (Downlink, DL), then the TCI state can be used for the terminal's PDSCH and part of the PDCCH (such as UE dedicated PDCCH), and part of the CSI-RS; if the base station indicates a TCI state for the uplink, (Uplink, UL)TCI state, then the TCI state can be used for the terminal's PUSCH, part of the PUCCH, and part of the SRS. If the base station indicates a joint jointTCIstate, the TCI state can be used for both uplink and downlink channels and/or reference signals.
  • Rel-17 only considers the unified TCI state of a single TRP, that is, it only considers the indication method of a set of TCI states (a set of TCI states contains a joint TCI state, or contains at least one of a DL TCI state and a UL TCI state). item). In the case of M-TRP, it is unclear how to indicate it.
  • one DCI indicates PDCCH/PDSCH/PUSCH/PUCCH of multiple TRPs, and one DCI signaling can indicate multiple sets of unified TCI states.
  • DCI sometimes indicates multiple sets of TCI states and sometimes indicates one set of TCI states, it is not clear how the TCI state received by the PDCCH is determined and how the reference PDCCH candidate is determined.
  • the embodiment of the present application provides a channel transmission method, which is mainly aimed at the case where the reception of a PDCCH contains multiple PDCCH candidates, and the search space sets associated with the multiple PDCCH candidates have link relationships.
  • the reference PDCCH candidate is determined for transmission.
  • Figure 2 is a flow chart of a channel transmission method provided by an exemplary embodiment of the present application. Taking the method being executed by a terminal as an example, as shown in Figure 2, the method includes the following steps.
  • Step 201 Receive first configuration information.
  • the first configuration information is used to configure N search space sets with link relationships, where N is an integer greater than 1.
  • Each search space set (Search Space Set, SS set) includes a physical downlink control channel PDCCH candidate.
  • N PDCCH candidates are used for the reception of one PDCCH.
  • Radio Resource Control (RRC) signaling configures two SS sets with link relationships.
  • One of the two SS sets contains the first PDCCH candidate.
  • another SS set includes a second PDCCH candidate
  • two PDCCH candidates are used for the reception of one PDCCH
  • each SS set is associated with its own CORESET
  • each CORESET is configured with a TCI state.
  • the two SS sets can be the same or different; the two CORESETs can be the same or different.
  • the TCI state of two CORESETs can be the same or different.
  • Step 202 Receive indication information. If the indication information indicates a set of TCI states, determine a reference PDCCH candidate from N PDCCH candidates for transmission.
  • the set of TCI states is used for one target PDCCH candidate among the N PDCCH candidates, that is, the understanding of the above indication information is based on the PDCCH non-repetition rule; in other embodiments, the set of TCI states The status is used for multiple PDCCH candidates among the N PDCCH candidates, that is, the understanding of the above indication information is based on the PDCCH repetition rule, which is not limited in this embodiment.
  • transmission time domain parameters are determined based on the reference PDCCH candidate; or transmission frequency domain resources are determined based on the reference PDCCH candidate.
  • the above indication information includes first indication information, the first indication information is used to indicate one set of TCI status or multiple sets of TCI status, wherein the first indication information includes MAC CE signaling, or, The first indication information includes MAC CE signaling and DCI information.
  • the above indication information includes first indication information and second indication information, that is, the indication information also includes second indication information, wherein the first indication information is used to indicate N sets of TCI status, and the first indication information includes MAC CE, or contains MAC CE and DCI.
  • the second indication information is used to indicate that one of the N sets of TCI states or M sets of TCI states are used for the reception of the PDCCH.
  • the second indication information includes at least one of RRC signaling, MAC CE signaling and DCI information.
  • the value of M is the same as or different from the number of PDCCH candidates mentioned above, and M is an integer greater than 1.
  • the indication information includes the first indication information and the second indication information
  • other PDCCHs such as the reception of PDCCHs that are not corresponding to the SS set with a link relationship, or for the transmission of PDSCH, PUCCH, PUSCH, etc.
  • Each requires independent second indication information to indicate which set or sets of TCI states in the first indication information are to be used for transmission of other PDCCH, or PDSCH, PUCCH, and PUSCH.
  • a set of TCI states includes a joint TCI state; or, a set of TCI states includes a downlink TCI state (or called a downlink independent TCI state); or, a set of TCI states includes An uplink TCI state (or called an uplink independent TCI state); or, a set of TCI states includes an uplink TCI state and a downlink TCI state.
  • a set of TCI states needs to include the joint TCI state or the downlink TCI state, but cannot only contain the uplink TCI state.
  • a set of TCI states needs to include joint TCI states or uplink TCI states, but cannot only contain downlink TCI states.
  • At least one set of TCI states indicated by the indication information is used for the transmission of at least two channels and/or signals, including PDCCH, and the signals include channel state information reference signal CSI-RS and sounding reference signal SRS. at least one of.
  • each set of TCI states indicated by the indication information is a TCI state for at least two channels and/or signals, which can be called unified TCI state or indicated TCI state.
  • the uplink channel includes PUCCH and PUSCH
  • the downlink channel includes PDCCH and PDSCH
  • the uplink signal includes sounding reference signal SRS
  • the downlink signal includes channel state information reference signal CSI-RS.
  • the terminal may receive the first configuration information first and then receive the indication information, or may receive the indication information first and then receive the first configuration information, or may receive the first configuration information and the indication information at the same time, which is not limited in this embodiment. .
  • One set of TCI states is used for one target PDCCH candidate; 2. One set of TCI states is used for multiple PDCCH candidates.
  • Using a set of TCI states for a target PDCCH candidate means using the set of TCI states to receive PDCCH on a target PDCCH candidate. PDCCHs on other PDCCH candidates do not need to be monitored and received.
  • the target PDCCH candidate is determined as the reference PDCCH candidate. That is, if a set of TCI states corresponds to only one PDCCH candidate among the N PDCCH candidates, then the PDCCH candidate corresponding to the set of TCI states is determined as the reference PDCCH candidate.
  • the base station notifies the terminal of the corresponding relationship between PDCCH candidates and TCI status.
  • the terminal receives second configuration information, and the second configuration information is used to indicate the corresponding relationship between each set of TCI states and the target PDCCH candidate.
  • the base station is configured with the search space set group corresponding to the search space set; or the base station is configured with the control resource pool index CORSETPoolIndex or the control resource pool group CORESET group or channel group corresponding to the control resource set (Control Resource Set, CORESET).
  • the base station also indicates the search space set group or the control resource pool index CORESETPoolIndex or the control resource pool group CORESET group or the channel group channel group corresponding to each set of TCI state.
  • the above configuration can be configured through at least one of RRC, MAC CE and DCI.
  • the above indication may be indicated by at least one of RRC, MAC CE and DCI.
  • the second type is determined based on the default mapping rules.
  • the terminal determines a set of target PDCCH candidates corresponding to the TCI state from the N PDCCH candidates based on the default mapping relationship.
  • At least one of the following methods is included:
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding control resource set CORESET identifier among the N PDCCH candidates.
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding CORESET ID among the N PDCCH candidates.
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding search space set identifier among the N PDCCH candidates.
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding SS set ID among the N PDCCH candidates.
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller CORESET pool index CORESETPoolIndex of the corresponding CORESET among the N PDCCH candidates.
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller CORESET group ID of the corresponding CORESET among the N PDCCH candidates.
  • One set of TCI states is used for multiple PDCCH candidates
  • Using one set of TCI states for multiple PDCCH candidates means using the set of TCI states to receive the same PDCCH on multiple PDCCH candidates.
  • the reference PDCCH candidate is determined from the multiple PDCCH candidates based on the configuration parameter relationship between the multiple PDCCH candidates.
  • the configuration parameter relationship refers to the comparison relationship corresponding to the configuration parameters of multiple PDCCH candidates.
  • the configuration parameter relationship includes at least one of the following relationships:
  • using the PDCCH candidate with the earlier or earliest time domain resource starting symbol as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, the time domain resource starting symbol is used
  • the earlier PDCCH candidate is used as the reference PDCCH candidate; when the number of PDCCH candidates is greater than 2, that is, when the value of N is greater than 2, the PDCCH candidate with the earliest starting symbol of the time domain resource is used as the reference PDCCH candidate.
  • using the PDCCH candidate with a later or latest time domain resource starting symbol as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, the time domain resource starting symbol is used.
  • the PDCCH candidate with a later symbol is used as the reference PDCCH candidate; when the number of PDCCH candidates is greater than 2, that is, when the value of the above N is greater than 2, the PDCCH candidate with the latest starting symbol of the time domain resource is used as the reference PDCCH candidate.
  • the number of PDCCH candidates when the number of PDCCH candidates is 2, use the PDCCH candidate whose start symbol of the time domain resource is ranked second in time sequence as the preference PDCCH candidate; when the number of PDCCH candidates is 4, use the time domain resource starting symbol.
  • the PDCCH candidate whose starting symbol is arranged at the 4th position in timing is used as the preference PDCCH candidate.
  • using the PDCCH candidate with an earlier or earliest time domain resource end symbol as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, use the earlier time domain resource end symbol.
  • PDCCH candidates are used as reference PDCCH candidates; when the number of PDCCH candidates is greater than 2, that is, when the value of the above N is greater than 2, the PDCCH candidate with the earliest end symbol of the time domain resource is used as the reference PDCCH candidate.
  • using the PDCCH candidate with the later or latest time domain resource end symbol as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, then using the time domain resource end symbol with the later time domain resource end symbol as the reference PDCCH candidate means:
  • the later PDCCH candidate is used as the reference PDCCH candidate; when the number of PDCCH candidates is greater than 2, that is, when the value of the above N is greater than 2, the PDCCH candidate with the latest end symbol of the time domain resource is used as the reference PDCCH candidate.
  • CORESET to identify the largest or larger PDCCH candidate as the reference PDCCH candidate
  • CORESET to identify the smallest or smaller PDCCH candidate as the reference PDCCH candidate
  • using CORESET to identify the largest or larger PDCCH candidate as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, then using CORESET to identify the larger PDCCH candidate as the reference PDCCH candidates; when the number of PDCCH candidates is greater than 2, that is, when the value of the above N is greater than 2, the PDCCH candidate with the largest CORESET identifier is used as the reference PDCCH candidate.
  • using CORESET to identify the smallest or smaller PDCCH candidate as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, then using CORESET to identify the smaller PDCCH candidate as the reference PDCCH candidates; when the number of PDCCH candidates is greater than 2, that is, when the value of the above N is greater than 2, the PDCCH candidate with the smallest CORESET identifier is used as the reference PDCCH candidate.
  • using the PDCCH candidate with the largest or larger search space set identifier as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, then using the PDCCH candidate with the larger search space set identifier The candidate is used as the reference PDCCH candidate; when the number of PDCCH candidates is greater than 2, that is, when the value of the above N is greater than 2, the PDCCH candidate with the largest search space set identifier is used as the reference PDCCH candidate.
  • using the PDCCH candidate with the smallest or smaller search space set identifier as the reference PDCCH candidate means: when the number of PDCCH candidates is 2, that is, when the value of the above N is 2, then using the PDCCH with the smaller search space set identifier The candidate is used as the reference PDCCH candidate; when the number of PDCCH candidates is greater than 2, that is, when the value of the above N is greater than 2, the PDCCH candidate with the smallest search space set identifier is used as the reference PDCCH candidate.
  • the reference PDCCH candidate can be Including a variety of uses, such as: determination of transmission time domain parameters, determination of transmission frequency domain resources, etc. The transmission time domain parameters and transmission frequency domain resources are explained separately.
  • Timing confirmations of Rel-15/16 are determined based on the start symbol or end symbol received by the PDCCH.
  • TDM Time-Division Multiplexing
  • Rel-17 defines a new monitoring opportunity (Monitoring Occasion, MO) for two PDCCH candidates used for repeated transmission.
  • MO Monitoring Occasion
  • the MO contains two PDCCH candidates, in which the PDCCH receives
  • the start symbol is the start symbol position 310 corresponding to the PDCCH candidate with the earliest start symbol
  • the end symbol received by the PDCCH is the end symbol position 320 corresponding to the PDCCH candidate with the latest end symbol.
  • the reference PDCCH candidate corresponds to the PDCCH candidate with the latest end symbol; when the start symbol received by the PDCCH is used as the criterion, the reference PDCCH candidate The PDCCH candidate corresponding to the earliest starting symbol; there is also a special case where the PDCCH candidate with the latest starting symbol is used as the reference PDCCH candidate, which will be introduced later.
  • the usage scenarios of each reference PDCCH candidate are introduced in detail below.
  • the PDCCH candidate with a later end symbol is used as the reference PDCCH candidate candidate. Include the following usage scenarios:
  • 1.1 is used to determine whether the default TCI state needs to be used to receive the scheduling offset of PDSCH/CSI-RS;
  • HARQ Hybrid Automatic Repeat reQuest
  • the last symbol of PDCCH is the last symbol based on the reference PDCCH candidate
  • DL DCI Used to determine the time slot offset value N for HARQ ACK feedback for some DL DCI, and these DL DCI do not contain PDSCH scheduling, such as DCI used for Semi-Persistent Scheduling (SPS) release, for DCI for secondary cell dormancy indication, and DCI for requesting Type-3 HARQ-ACK;
  • SPS Semi-Persistent Scheduling
  • Physical Random Access Channel Physical Random Access Channel
  • the reception preparation time of PDSCH/AP-CSI-RS that is, the minimum scheduling Delay Npdsch and Ncsirs;
  • TPC Transmit Power Command
  • 1.14 is used to determine the set of symbols that need to be canceled indicated by DCI format 2_4;
  • 1.15 is used for the timing of SS set group switching (Pswitch) when the DCI format that triggers SS set group switching is detected;
  • 1.16 is used to determine whether the TPC command is still within the time window of the TPC application when the DCI format 2_2/2_3 containing the TPC command is detected;
  • 1.18 is used when receiving the DCI released by SPS PDSCH and SPS PDSCH in the same time slot, the PDCCH candidate with a later end time must end before the end of SPS PDSCH;
  • NZP Non-Zero-Power
  • BFR Beam-Failure-Recovery
  • both PDCCH candidates must be included in the first three symbols of the timeslot.
  • SRI SRS Resource Index
  • PUCCH Resource Index Used to determine the last DCI used for PUCCH resource determination based on the PUCCH Resource Index (PUCCH Resource Index, PRI) indication field of the last DCI;
  • 2.3 is used to determine the interrupted symbol set based on DCI format 2_1 (Pre-emption indication);
  • 2.4 is used to determine the first symbol of PDCCH reception for cancellation indication of PUSCH/SRS based on DCI format 2_4;
  • the PUCCH resource set size resource set size is greater than 8, determine the PUCCH resource used to send the HARQ-ACK corresponding to the resource scheduled by the PDCCH.
  • PUCCH resources are determined based on the number of resource units (Control Channel Element, CCE) of the CORESET corresponding to the PDCCH and the index value of the starting CCE of the PDCCH candidate.
  • CCE Control Channel Element
  • the frequency domain resources of PDSCH are determined as follows:
  • the description is "For non-interleaved VRB to PRB, n of VRB corresponds to PRB ”, and here the It is the lowest numbered PRB of the CORESET corresponding to the corresponding DCI.
  • the PRB with the lowest number of the CORESET with the smaller CORESET ID is used as the
  • the frequency domain resources of PUSCH are determined as follows:
  • the description is "the uplink RB set is the lowest indexed one among uplink RB set( s)that intersects the lowest-indexed CCE of the PDCCH in which the UE detects the DCI 0_0 in the active downlink BWP", when the corresponding DCI is carried by two PDCCH candidates with a link relationship, use the CORESET with the smaller CORESET ID
  • the lowest numbered CCE corresponding to the PDCCH candidate is used as a reference.
  • the channel transmission method when the indication information indicates a set of TCI state, for PDCCH reception, if multiple SS sets with link relationships are configured, when the terminal adopts this set of TCI state
  • a reasonable reference PDCCH candidate determination method is used to maintain a consistent understanding between the terminal and the base station on the use of Reference PDCCH candidates, thereby improving the signal quality of Multi-TRP transmission based on unified TCI state.
  • Figure 5 is a flowchart of a channel transmission method provided by another exemplary embodiment of the present application. This method is explained by taking the method being executed by the access network device as an example. As shown in Figure 5, the method includes the following steps.
  • Step 501 Send first configuration information to the terminal.
  • the first configuration information is used to configure N search space sets with link relationships.
  • Each SS set includes a physical downlink control channel PDCCH candidate.
  • N PDCCH candidates are used for the reception of one PDCCH.
  • Radio Resource Control (RRC) signaling configures two SS sets with link relationships.
  • One of the two SS sets contains the first PDCCH candidate.
  • another SS set includes a second PDCCH candidate
  • two PDCCH candidates are used for the reception of one PDCCH
  • each SS set is associated with its own CORESET
  • each CORESET is configured with a TCI state.
  • the two SS sets can be the same or different; the two CORESETs can be the same or different.
  • the TCI state of two CORESETs can be the same or different.
  • Step 502 Send indication information to the terminal. If the indication information indicates a set of transmission configuration indicating TCI status, determine a reference PDCCH candidate from N PDCCH candidates for transmission.
  • the set of TCI states is used for one target PDCCH candidate among the N PDCCH candidates, that is, the understanding of the above indication information is based on the PDCCH non-repetition rule; in other embodiments, the set of TCI states The status is used for multiple PDCCH candidates among the N PDCCH candidates, that is, the understanding of the above indication information is based on the PDCCH repetition rule, which is not limited in this embodiment.
  • transmission time domain parameters are determined based on the reference PDCCH candidate; or transmission frequency domain resources are determined based on the reference PDCCH candidate.
  • the above indication information includes first indication information, the first indication information is used to indicate one set of TCI status or multiple sets of TCI status, wherein the first indication information includes MAC CE signaling, or, The first indication information includes MAC CE signaling and DCI information.
  • the above indication information includes first indication information and second indication information, that is, the indication information also includes second indication information, wherein the first indication information is used to indicate N sets of TCI status, and the first indication information includes MAC CE, or contains MAC CE and DCI.
  • the second indication information is used to indicate that one of the N sets of TCI states or M sets of TCI states are used for the reception of the PDCCH.
  • the second indication information includes at least one of RRC signaling, MAC CE signaling and DCI information.
  • the value of M is the same as or different from the number of PDCCH candidates mentioned above, and M is an integer greater than 1.
  • the indication information includes the first indication information and the second indication information
  • other PDCCHs such as the reception of PDCCHs that are not corresponding to the SS set with a link relationship, or for the transmission of PDSCH, PUCCH, PUSCH, etc.
  • Each requires independent second indication information to indicate which set or sets of TCI states in the first indication information are to be used for transmission of other PDCCH, or PDSCH, PUCCH, and PUSCH.
  • a set of TCI states includes a joint TCI state; or, a set of TCI states includes a downlink TCI state (or called a downlink independent TCI state); or, a set of TCI states includes An uplink TCI state (or called an uplink independent TCI state); or, a set of TCI states includes an uplink TCI state and a downlink TCI state.
  • a set of TCI states needs to include the joint TCI state or the downlink TCI state, but cannot only contain the uplink TCI state.
  • a set of TCI states needs to include joint TCI states or uplink TCI states, but cannot only contain downlink TCI states.
  • At least one set of TCI states indicated by the indication information is used for the transmission of at least two channels and/or signals, including PDCCH, and the signals include channel state information reference signal CSI-RS and sounding reference signal SRS. at least one of.
  • each set of TCI states indicated by the indication information is a TCI state for at least two channels and/or signals, which can be called unified TCI state or indicated TCI state.
  • the uplink channel includes PUCCH and PUSCH
  • the downlink channel includes PDCCH and PDSCH
  • the uplink signal includes sounding reference signal SRS
  • the downlink signal includes channel state information reference signal CSI-RS.
  • the channel transmission method when the indication information indicates a set of TCI state, for PDCCH reception, if multiple SS sets with link relationships are configured, when the terminal uses this set of TCI state to receive
  • a reasonable reference PDCCH candidate determination method is adopted to maintain a consistent understanding between the terminal and the base station on the use of Reference PDCCH candidates, thereby improving the signal quality of Multi-TRP transmission based on unified TCI state.
  • Figure 6 is a flow chart of a channel transmission method provided by another exemplary embodiment of the present application. Taking this method as applied between a terminal and an access network device as an example, as shown in Figure 6, the method includes the following steps.
  • Step 601 The access network device sends first configuration information to the terminal.
  • the first configuration information is used to configure N search space sets with link relationships.
  • Each SS set includes a physical downlink control channel PDCCH candidate.
  • N PDCCH candidates are used for the reception of one PDCCH.
  • Radio Resource Control (RRC) signaling configures two SS sets with link relationships.
  • One of the two SS sets contains the first PDCCH candidate.
  • another SS set includes a second PDCCH candidate
  • two PDCCH candidates are used for the reception of one PDCCH
  • each SS set is associated with its own CORESET
  • each CORESET is configured with a TCI state.
  • the two SS sets can be the same or different; the two CORESETs can be the same or different.
  • the TCI state of two CORESETs can be the same or different.
  • Step 602 The access network device sends instruction information to the terminal.
  • the above indication information includes first indication information, the first indication information is used to indicate one set of TCI status or multiple sets of TCI status, wherein the first indication information includes MAC CE signaling, or, The first indication information includes MAC CE signaling and DCI information.
  • the above indication information includes first indication information and second indication information, that is, the indication information also includes second indication information, wherein the first indication information is used to indicate N sets of TCI status, and the first indication information includes MAC CE, or contains MAC CE and DCI.
  • the second indication information is used to indicate that one of the N sets of TCI states or M sets of TCI states are used for the reception of the PDCCH.
  • the second indication information includes at least one of RRC signaling, MAC CE signaling and DCI information.
  • the value of M is the same as or different from the number of PDCCH candidates mentioned above, and M is an integer greater than 1.
  • the indication information includes the first indication information and the second indication information
  • other PDCCHs such as the reception of PDCCHs that are not corresponding to the SS set with a link relationship, or for the transmission of PDSCH, PUCCH, PUSCH, etc.
  • Each requires independent second indication information to indicate which set or sets of TCI states in the first indication information are to be used for transmission of other PDCCH, or PDSCH, PUCCH, and PUSCH.
  • a set of TCI states includes a joint TCI state; or, a set of TCI states includes a downlink TCI state (or called a downlink independent TCI state); or, a set of TCI states includes An uplink TCI state (or called an uplink independent TCI state); or, a set of TCI states includes an uplink TCI state and a downlink TCI state.
  • a set of TCI states needs to include the joint TCI state or the downlink TCI state, but cannot only contain the uplink TCI state.
  • a set of TCI states needs to include joint TCI states or uplink TCI states, but cannot only contain downlink TCI states.
  • a set of TCI states includes a joint TCI state; or, a set of TCI states includes a downlink TCI state (or called downlink independent TCI state); or, A set of TCI states includes an uplink TCI state and a downlink TCI state.
  • At least one set of TCI states indicated by the indication information is used for the transmission of at least two channels and/or signals, including PDCCH, and the signals include channel state information reference signal CSI-RS and sounding reference signal SRS. at least one of.
  • each set of TCI states indicated by the indication information is a TCI state for at least two channels and/or signals, which can be called unified TCI state or indicated TCI state.
  • the uplink channel includes PUCCH and PUSCH
  • the downlink channel includes PDCCH and PDSCH
  • the uplink signal includes sounding reference signal SRS
  • the downlink signal includes channel state information reference signal CSI-RS.
  • Step 603 When the indication information indicates a set of transmission configuration indicating TCI status, the terminal and the access network device determine a reference PDCCH candidate from N PDCCH candidates for transmission.
  • the terminal determines a reference PDCCH candidate from N PDCCH candidates for reception; when the indication information indicates a set of transmission configuration indicating TCI status, the access network device , determine the reference PDCCH candidate from the N PDCCH candidates for transmission.
  • the set of TCI states is used for one target PDCCH candidate among the N PDCCH candidates, that is, the understanding of the above indication information is based on the PDCCH non-repetition rule; in other embodiments, the set of TCI states The status is used for multiple PDCCH candidates among the N PDCCH candidates, that is, the understanding of the above indication information is based on the PDCCH repetition rule, which is not limited in this embodiment.
  • transmission time domain parameters are determined based on the reference PDCCH candidate; or transmission frequency domain resources are determined based on the reference PDCCH candidate.
  • the channel transmission method when the indication information indicates a set of TCI state, for PDCCH reception, if multiple SS sets with link relationships are configured, when the terminal uses this set of TCI state to receive
  • a reasonable reference PDCCH candidate determination method is adopted to maintain a consistent understanding between the terminal and the base station on the use of Reference PDCCH candidates, thereby improving the signal quality of Multi-TRP transmission based on unified TCI state.
  • Figure 7 is a structural block diagram of a channel transmission device provided by an exemplary embodiment of the present application. As shown in Figure 7, the device includes:
  • the receiving module 710 is configured to receive first configuration information.
  • the first configuration information is used to configure N search space sets with link relationships.
  • Each of the search space sets includes one physical downlink control channel PDCCH candidate, and N is greater than an integer of 1;
  • the receiving module 710 is also configured to receive indication information, and determine a reference PDCCH candidate from N PDCCH candidates for transmission when the indication information indicates a set of transmission configuration indicating TCI status.
  • the N PDCCH candidates are used for the reception of one PDCCH.
  • the set of TCI states is used for one target PDCCH candidate among the N PDCCH candidates.
  • the set of TCI states is used for a plurality of the N PDCCH candidates.
  • the device further includes:
  • the processing module 720 is configured to determine the target PDCCH candidate as the reference PDCCH candidate when the set of TCI states is used for one target PDCCH candidate.
  • the receiving module 710 is further configured to receive second configuration information, where the second configuration information is used to indicate the corresponding relationship between the set of TCI states and the target PDCCH candidate; or
  • the processing module 720 is also configured to determine the target PDCCH candidate corresponding to the set of TCI states from the N PDCCH candidates based on the default mapping relationship.
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding control resource set CORESET identification among the N PDCCH candidates;
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding search space set identifier among the N PDCCH candidates;
  • the target PDCCH candidate is the PDCCH candidate whose CORESET pool index CORESETPoolIndex of the corresponding CORESET is the smallest or smaller among the N PDCCH candidates; or
  • the target PDCCH candidate is the PDCCH candidate whose CORESET group index CORESET group ID corresponding to the CORESET is the smallest or smaller among the N PDCCH candidates.
  • the device further includes:
  • the processing module 720 is configured to determine the reference PDCCH candidate from the multiple PDCCH candidates based on the configuration parameter relationship between the multiple PDCCH candidates when the set of TCI states is used for multiple PDCCH candidates.
  • the configuration parameter relationship includes at least one of the following relationships:
  • the processing module 720 is also configured to use the PDCCH candidate with an earlier or earliest starting symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 720 is also configured to use the PDCCH candidate with a later or latest starting symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 720 is also configured to use the PDCCH candidate with an earlier or earliest end symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 720 is also configured to use the PDCCH candidate with a later or latest end symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 720 is also configured to use the largest or larger PDCCH candidate identified by the CORESET as the reference PDCCH candidate; or,
  • the processing module 720 is also configured to use the CORESET to identify the smallest or smaller PDCCH candidate as the reference PDCCH candidate; or,
  • the processing module 720 is further configured to use the search space set to identify the largest or larger PDCCH candidate as the reference PDCCH candidate; or,
  • the processing module 720 is further configured to use the search space set to identify the smallest or smaller PDCCH candidate as the reference PDCCH candidate.
  • the device further includes:
  • Processing module 720 configured to determine transmission time domain parameters based on the reference PDCCH candidate
  • the processing module 720 is also configured to determine transmission frequency domain resources based on the reference PDCCH candidate.
  • the indication information includes first indication information, the first indication information is used to indicate the set of TCI status or multiple sets of TCI status;
  • the first indication information includes media access control control unit MAC CE signaling; or, the first indication information includes MAC CE signaling and downlink control information DCI.
  • the indication information also includes second indication information, the first indication information is used to indicate N sets of TCI states, and the second indication information is used to indicate that among the N sets of TCI states One or more sets of TCI states are used for PDCCH reception;
  • the second indication information includes at least one of radio resource control RRC signaling, MAC CE signaling and DCI.
  • the set of TCI states includes a combined TCI state
  • the set of TCI states includes a downlink TCI state
  • the set of TCI states includes an uplink TCI state; or
  • the set of TCI states includes an uplink TCI state and a downlink TCI state.
  • the set of TCI states indicated by the indication information is used for the transmission of at least two channels and/or signals, including PDCCH, and the signals include channel state information reference signals CSI-RS. and at least one of the sounding reference signal SRS.
  • Figure 8 is a structural block diagram of a channel transmission device provided by an exemplary embodiment of the present application. As shown in Figure 8, the device includes:
  • the sending module 810 is configured to send first configuration information to the terminal.
  • the first configuration information is used to configure N search space sets with link relationships.
  • Each search space set includes a physical downlink control channel PDCCH candidate, and N is greater than an integer of 1;
  • the sending module 810 is also configured to send indication information to the terminal.
  • the indication information indicates a set of transmission configuration indication status TCI status, determine a reference PDCCH candidate from N PDCCH candidates for transmission.
  • the N PDCCH candidates are used for the transmission of one PDCCH.
  • the set of TCI states is used for one target PDCCH candidate among the N PDCCH candidates.
  • the set of TCI states is used for a plurality of the N PDCCH candidates.
  • the device further includes:
  • the processing module 820 is configured to determine the target PDCCH candidate as the reference PDCCH candidate when the set of TCI states is used for one target PDCCH candidate.
  • the sending module 810 is further configured to send second configuration information to the terminal, where the second configuration information is used to indicate the set of TCI states and the target PDCCH candidate. Correspondence; or
  • the processing module 820 is also configured to determine the target PDCCH candidate corresponding to the set of TCI states from the N PDCCH candidates based on the default mapping relationship.
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding CORESET identification among the N PDCCH candidates;
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller corresponding search space set identifier among the N PDCCH candidates;
  • the target PDCCH candidate is the PDCCH candidate whose CORESET pool index CORESETPoolIndex of the corresponding CORESET is the smallest or smaller among the N PDCCH candidates; or
  • the target PDCCH candidate is the PDCCH candidate with the smallest or smaller CORESET group index of the corresponding CORESET among the N PDCCH candidates.
  • the device further includes:
  • the processing module 820 is configured to determine the reference PDCCH candidate from the multiple PDCCH candidates based on the configuration parameter relationship between the multiple PDCCH candidates when the set of TCI states is used for multiple PDCCH candidates.
  • the configuration parameter relationship includes at least one of the following relationships:
  • the processing module 820 is also configured to use the PDCCH candidate with an earlier or earliest starting symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 820 is also configured to use the PDCCH candidate with a later or latest starting symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 820 is also configured to use the PDCCH candidate with an earlier or earliest end symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 820 is also configured to use the PDCCH candidate with a later or latest end symbol of the time domain resource as the reference PDCCH candidate; or,
  • the processing module 820 is also configured to use the CORESET to identify the largest or larger PDCCH candidate as the reference PDCCH candidate; or,
  • the processing module 820 is also configured to use the CORESET to identify the smallest or smaller PDCCH candidate as the reference PDCCH candidate; or,
  • the processing module 820 is also configured to use the search space set to identify the largest or larger PDCCH candidate as the reference PDCCH candidate; or,
  • the processing module 820 is further configured to use the search space set to identify the smallest or smaller PDCCH candidate as the reference PDCCH candidate.
  • the indication information includes first indication information, where the first indication information is used to indicate one set of TCI states or multiple sets of TCI states;
  • the first indication information includes media access control control unit MAC CE signaling; or the first indication information includes MAC CE signaling and downlink control information DCI.
  • the indication information also includes second indication information, the first indication information is used to indicate N sets of TCI states, and the second indication information is used to indicate that among the N sets of TCI states One or more sets of TCI states are used for PDCCH reception;
  • the second indication information includes at least one of radio resource control RRC signaling, MAC CE signaling and DCI.
  • the set of TCI states includes a combined TCI state
  • the set of TCI states includes a downlink TCI state
  • the set of TCI states includes an uplink TCI state; or
  • the set of TCI states includes an uplink TCI state and a downlink TCI state.
  • the set of TCI states indicated by the indication information is used for the transmission of at least two channels and/or signals, including PDCCH, and the signals include at least one of CSI-RS and SRS. item.
  • Figure 9 shows a schematic structural diagram of a communication device 900 (terminal device or network device) provided by an exemplary embodiment of the present disclosure.
  • the communication device 900 includes: a processor 901, a receiver 902, a transmitter 903, a memory 904 and a bus. 905.
  • the processor 901 includes one or more processing cores.
  • the processor 901 executes various functional applications and information processing by running software programs and modules.
  • the receiver 902 and the transmitter 903 can be implemented as a communication component, and the communication component can be a communication chip.
  • the memory 904 is connected to the processor 901 through a bus 905.
  • the memory 904 can be used to store at least one instruction, and the processor 901 is used to execute the at least one instruction to implement each step in the above method embodiment.
  • memory 904 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 (Erasable Programmable Read Only Memory, EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, EPROM), static random access memory (Static Random Access Memory, SRAM), read-only memory (Read -Only Memory (ROM), magnetic memory, flash memory, Programmable Read-Only Memory (PROM).
  • magnetic or optical disks electrically erasable programmable Read-only memory (Erasable Programmable Read Only Memory, EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, EPROM), static random access memory (Static Random Access Memory, SRAM), read-only memory (Read -Only Memory (ROM), magnetic memory, flash memory, Programmable Read-Only Memory (PROM).
  • EEPROM electrically erasable programm
  • An exemplary embodiment of the present disclosure also provides a channel transmission system, where the system includes: a terminal device and an access network device;
  • the terminal equipment includes the channel transmission device provided in the embodiment as shown in Figure 7;
  • the access network equipment includes the channel transmission device provided in the embodiment shown in Figure 8.
  • 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 a program, a code set or an 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 channel transmission method provided by each of the above method embodiments, and the steps performed by the network device in the channel transmission method.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开提供了一种信道传输方法、装置、设备及可读存储介质，涉及通信领域。该方法包括：接收第一配置信息，第一配置信息用于配置具有链接关系的N个搜索空间集，每个搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；接收指示信息，在指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。终端采用该一套TCI state接收该PDCCH时，采用合理的参考PDCCH候选的确定方式，使得终端和基站之间在Reference PDCCH candidate采用上保持一致认识。

Description

信道传输方法、装置、设备及可读存储介质 技术领域
本公开涉及通信领域，特别涉及一种信道传输方法、装置、设备及可读存储介质。
背景技术
新空口(New Radio，NR)Rel-16系统中，各个信道和/或参考信号的传输配置指示(Transmission Configuration Indication，TCI)都是独立指示的，Rel-17中，为了减少信令开销，采用一套TCI状态进行指示。
然而，Rel-17仅考虑了单传输接收点(Transmission and Receiving Point，TRP)的一套TCI state的指示方法。
发明内容
本公开实施例提供了一种信道传输方法、装置、设备及可读存储介质，能够提高PDCCH的传输准确率。所述技术方案如下：
根据本公开的一方面，提供了一种信道传输方法，被终端执行，所述方法包括：
接收第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个所述搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
接收指示信息，在所述指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
另一方面，提供了一种信道传输方法，被接入网设备执行，所述方法包括：
向终端发送第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
向所述终端发送指示信息，在所述指示信息指示一套传输配置指示状态TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
另一方面，提供了一种信道传输装置，所述装置包括：
接收模块，用于接收第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个所述搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
所述接收模块，还用于接收指示信息，在所述指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
另一方面，提供了一种信道传输装置，所述装置包括：
发送模块，用于向终端发送第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
所述发送模块，还用于向所述终端发送指示信息，在所述指示信息指示一套传输配置指示状态TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
另一方面，提供了一种终端，该终端包括：
处理器；
与处理器相连的收发器；
用于存储所述处理器的可执行信令的存储器；
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本公开实施例所述的信道传输方法。
另一方面，提供了一种接入网设备，该接入网设备包括：
处理器；
与处理器相连的收发器；
用于存储所述处理器的可执行信令的存储器；
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本公开实施例所述的信道传输方法。
另一方面，提供了一种计算机可读存储介质，该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，上述至少一条指令、至少一段程序、代码集或指令集由处理器加载并执行以实现如上述本公开实施例所述的信道传输方法。
本公开实施例提供的技术方案带来的有益效果至少包括：
当指示信息指示一套TCI state时，对于PDCCH接收，若被配置了多个具有链接关系的SS set，当终端采用该一套TCI state接收该PDCCH时，采用合理的参考PDCCH候选的确定方式，使得终端和基站之间在Reference PDCCH candidate采用上保持一致认识，从而提高基于unified TCI state的Multi-TRP传输的信号质量。
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框图；
图2是本公开一个示例性实施例提供的信道传输方法的流程图；
图3是本公开一个示例性实施例提供的PDCCH信道的示意图；
图4是本公开另一个示例性实施例提供的信PDCCH信道的示意图；
图5是本公开另一个示例性实施例提供的信道传输方法的流程图；
图6是本公开另一个示例性实施例提供的信道传输方法的流程图；
图7是本公开一个示例性实施例提供的信道传输装置的结构框图；
图8是本公开另一个示例性实施例提供的信道传输装置的结构框图；
图9是本公开一个示例性实施例示出的通信设备的结构框图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
图1示出了本公开一个示意性实施例提供的通信系统的框图，该通信系统可以包括：核心网11、接入网12和终端13。
核心网11中包括若干个核心网设备110。核心网设备110包括接入和移动 管理功能(Access and Mobility Management Function，AMF)，会话管理功能(Session Management Function，SMF)以及用户面管理功能(User Plane Function，UPF)等设备，可选地，核心网11中还包括位置管理功能(Location Management Function，LMF)。其中，AMF用于控制终端的接入权限以及切换等功能；SMF用于提供服务器连续性、服务器的不间断用户体验，如：IP地址和锚点变化等；LMF用于支持定位计算，从终端获取下行定位测量结果或定位估计。
接入网12中包括若干个接入网设备120。接入网设备120可以是基站，基站是一种部署在接入网中用以为终端提供无线通信功能的装置。基站可以包括各种形式的宏基站，微基站，中继站，接入点，发送接收点(Transmission reception Point，TRP)等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在长期演进(Long Term Evolution，LTE)系统中，称为eNodeB或者eNB；在5G新空口(New Radio，NR)系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一名称可能描述，会变化。为方便本公开实施例中，上述为终端提供无线通信功能的装置统称为接入网设备。
终端13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、物联网(Internet of Things，IoT)设备、工业物联网(Industry Internet of Things，IIoT)设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)，终端(terminal device)等等。为方便描述，上面提到的设备统称为终端设备。接入网设备120与终端设备13之间通过某种空口技术互相通信，例如Uu接口。
本公开实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile Communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、先进的长期演进(Advanced long Term Evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to Unlicensed spectrum，LTE-U)系统、NR-U系统、通用移动通信系统(Universal  Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信以及车联网(Vehicle to Everything，V2X)系统等。本公开实施例也可以应用于这些通信系统。
5G NR中，当通信频段在频率范围2(Frequency Range 2，FR2)时，由于高频信道衰减较快，为了保证覆盖范围，需要通过基于TCI state的发送/接收。TCI state可以包括准共站址(Quasi co-location，QCL)类型(type)信息。其中QCL Type A,B，C与多普勒频移(doppler shift)，多普勒扩展(doppler spread)，平均延迟(average delay)，延迟扩展(delay spread)中的至少一项有关，QCL Type D与空间接收参数(spatial Rx parameter)有关。
Rel-16中，物理下行控制信道(Physical Downlink Control Channel，PDCCH)、物理下行共享信道(Physical Downlink Shared Channel，PDSCH)、物理上行共享信道(Physical Uplink Shared Channel，PUSCH)、物理上行控制信道(Physical Uplink Control Channel，PUCCH)和/或各个参考信号的TCI state或空间关系信息(spatial relation information)都是独立指示的，其中，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)，时间参考信号(Timing Reference Signal，TRS)等，CSI-RS包括用于信道状态信息测量的CSI-RS或用于波束测量的CSI-RS或用于路径损失(pathloss)估计的CSI-RS；SRS包括用于基于码本(codebook)或非码本(non-codebook)的信道状态信息测量的SRS或用于波束测量的SRS或用于定位测量的SRS。而且PDCCH和PUCCH使用媒体访问控制控制单元(Medium Access Control Control Element，MAC CE)来激活一个TCI state或spatial relation  information。而PDSCH和PUSCH是下行控制信息(Downlink Control Information，DCI)信令来指示其各自的TCI state或spatial relation information。
Rel-17为了减少信令开销，希望使用统一unified TCI状态，unified TCI state可以是上行和下行分开指示，或者上下行联合指示。即基站如果指示一个用于下行的(Downlink，DL)TCI state，那么该TCI state可以用于终端的PDSCH和一部分PDCCH(比如UE dedicated PDCCH)，一部分CSI-RS；基站如果指示一个用于上行的(Uplink，UL)TCI state，那么该TCI state可以用于终端的PUSCH和一部分PUCCH，一部分SRS。基站如果指示一个联合jointTCIstate，则该TCI state可以同时用于上行和下行的信道和/或参考信号。
Rel-17只考虑了single TRP的unified TCI state，也就是只考虑了一套TCI state的指示方法(一套TCI state包含一个joint TCI state，或包含一个DL TCI state和一个UL TCI state的至少一项)。而M-TRP的情况下如何指示无法确定。
在Rel-18中考虑M-TRP时，若采用Single-DCI的场景时，一个DCI指示多个TRP的PDCCH/PDSCH/PUSCH/PUCCH等时，一个DCI信令可以指示多套unified TCI state。当DCI有时候指示多套TCI state，有时候指示一套TCI state时，PDCCH接收的TCI state如何确定，以及reference PDCCH候选如何确定，都还不明确。
针对上述问题，本申请实施例提供的一种信道传输方法，主要针对一个PDCCH的接收包含多个PDCCH候选，且多个PDCCH候选关联的搜索空间集具有链接关系的情况下，在仅有一套TCI状态的时，从中确定出参考PDCCH候选进行传输。
图2是本申请一个示例性实施例提供的信道传输方法的流程图，以该方法被终端执行为例，如图2所示，该方法包括如下步骤。
步骤201，接收第一配置信息，第一配置信息用于配置具有链接关系的N个搜索空间集，N为大于1的整数。
每个搜索空间集(Search Space Set，SS set)中包括一个物理下行控制信道PDCCH候选candidate。
可选地，N个PDCCH候选用于一个PDCCH的接收。
示意性的，以两个搜索空间集为例进行说明，无线资源控制(Radio Resource  Control，RRC)信令配置两个具有链接关系的SS set，两个SS set中一个SS set包含第一PDCCH candidate，另一个SS set包括第二PDCCH candidate，两个PDCCH candidate用于一个PDCCH的接收，且每个SS set关联各自的CORESET，每个CORESET都配置有一个TCI state。其中两个SS set可以为同一个或不同；两个CORESET可以为同一个或不同。两个CORESET的TCI state可以相同或不同。当两个CORESET的TCI state不同时，两个PDCCH candidate对应不同的TCI状态。
步骤202，接收指示信息，在指示信息指示一套TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
在一些实施例中，该一套TCI状态用于N个PDCCH候选中的一个目标PDCCH候选，即对上述指示信息的理解是基于PDCCH非repetition rule的；在另一些实施例中，该一套TCI状态用于N个PDCCH候选中的多个PDCCH候选，即对上述指示信息的理解是基于PDCCH repetition rule的，本实施例对此不加以限定。
在一个可选的实施例中，在确定参考PDCCH候选后，基于参考PDCCH候选确定传输时域参数；或者，基于参考PDCCH候选确定传输频域资源。
在一个可选的实施例中，上述指示信息包括第一指示信息，该第一指示信息用于指示一套TCI状态或者多套TCI状态，其中，第一指示信息包括MAC CE信令，或，第一指示信息包括MAC CE信令和DCI信息。
可选地，上述指示信息包括第一指示信息和第二指示信息，也即，指示信息还包括第二指示信息，其中，第一指示信息用于指示N套TCI状态，第一指示信息包含MAC CE，或包含MAC CE和DCI。第二指示信息用于指示N套TCI状态中的其中一套或者M套TCI状态用于PDCCH的接收，第二指示信息包括RRC信令、MAC CE信令和DCI信息中的至少一种。其中，M的取值与上述PDCCH候选的数量相同或者不同，M为大于1的整数。
可选地，当指示信息中包括第一指示信息和第二指示信息时，对于其他PDCCH，比如不是该具有链接关系的SS set对应的PDCCH的接收，或对于PDSCH，PUCCH，PUSCH的传输等，都各自需要独立的第二指示信息分别去指示是使用第一指示信息中的哪一套或多套TCI状态来进行其他PDCCH，或PDSCH，PUCCH，PUSCH的传输。
在一个可选的实施例中，一套TCI状态包括一个联合(joint)TCI状态；或者，一套TCI状态包括一个下行TCI状态(或称为下行独立TCI状态)；或者，一套TCI状态包括一个上行TCI状态(或称为上行独立TCI状态)；或者，一套TCI状态包括一个上行TCI状态和一个下行TCI状态。
值得注意的是，用于PDCCH或PDSCH或下行信号的传输的时候，一套TCI状态需要包含联合TCI状态或下行TCI状态，但是不能只包含上行TCI状态。用于PUCCH或PUSCH或上行信号的传输时，一套TCI状态需要包含联合TCI状态或上行TCI状态，但是不能只包含下行TCI状态。
在一个可选的实施例中，指示信息指示的至少一套TCI状态用于至少两种信道和/或信号的传输，其中包括PDCCH，信号包括信道状态信息参考信号CSI-RS和探测参考信号SRS的至少一项。
也即，指示信息指示的每套TCI状态为用于至少两种信道和/或信号的TCI状态，可以称为unified TCI state或indicated TCI state。其中，上行信道包括PUCCH、PUSCH，下行信道包括PDCCH、PDSCH，上行信号包括探测参考信号SRS，下行信号包括信道状态信息参考信号CSI-RS。
可选地，终端可以先接收第一配置信息再接收指示信息，也可以先接收指示信息再接收第一配置信息，还可以同时接收第一配置信息和指示信息，本实施例对此不加以限定。
针对一套TCI状态与PDCCH候选的对应方法，进行如下介绍，其中包括：
1、一套TCI状态用于一个目标PDCCH候选；2、一套TCI状态用于多个PDCCH候选。
1、一套TCI状态用于一个目标PDCCH候选
一套TCI状态用于一个目标PDCCH候选是指：使用该一套TCI状态去接收一个目标PDCCH候选上的PDCCH，其它PDCCH候选上的PDCCH不需要进行监测接收。在一套TCI状态用于一个目标PDCCH候选的情况下，将目标PDCCH候选确定为参考PDCCH候选。也即，一套TCI状态仅与N个PDCCH候选中的一个PDCCH候选对应，则将与该一套TCI状态对应的PDCCH候选确定为参考PDCCH候选。
其中，在确定一套TCI状态对应的目标PDCCH候选时，包括如下方法中 的至少一种：
第一种，基站告知终端PDCCH候选与TCI状态的对应关系。
可选地，终端接收第二配置信息，第二配置信息用于指示每套TCI状态与目标PDCCH候选的对应关系。
示意性的，基站配置了搜索空间集对应的搜索空间集group；或者基站配置了控制资源集(Control Resource Set，CORESET)对应的控制资源池索引CORSETPoolIndex或控制资源池组CORESET group或信道组channel group，基站又指示了每套TCI state对应的搜索空间集group或控制资源池索引CORESETPoolIndex或控制资源池组CORESET group或信道组channel group，则根据基站的配置和基站指示的信息之间的对应关系，确定PDCCH候选与TCI状态的对应关系。其中，以上配置可以通过RRC、MAC CE和DCI中的至少一项来配置。以上指示可以通过RRC、MAC CE和DCI中的至少一项来指示。
第二种，根据默认映射规则确定。
可选地，终端基于默认映射关系从N个PDCCH候选中确定一套TCI状态对应的目标PDCCH候选。
其中，在根据默认映射规则确定目标PDCCH候选时，包括如下方法中的至少一种：
1)目标PDCCH候选为N个PDCCH候选中对应的控制资源集CORESET标识最小或较小的PDCCH候选。
也即，目标PDCCH候选是N个PDCCH候选中对应CORESET ID最小或较小的PDCCH候选。
2)目标PDCCH候选为N个PDCCH候选中对应的搜索空间集标识最小或较小的PDCCH候选。
也即，目标PDCCH候选是N个PDCCH候选中对应的SS set ID最小或较小的PDCCH候选。
3)目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET池索引CORESETPoolIndex最小或较小的PDCCH候选。
4)目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET组索引CORESET group ID最小或较小的PDCCH候选。
值得注意的是，上述确定目标PDCCH候选的方式仅为示意性的举例，本申 请实施例对此不加以限定。
2、一套TCI状态用于多个PDCCH候选
一套TCI状态用于多个PDCCH候选是指：使用该一套TCI状态去接收多个PDCCH候选上的同一个PDCCH。在一套TCI状态用于多个目标PDCCH候选的情况下，基于多个PDCCH候选之间的配置参数关系，从多个PDCCH候选中确定出参考PDCCH候选。
示意性的，配置参数关系是指多个PDCCH候选的配置参数对应的比对关系等。如，配置参数关系包括如下关系中的至少一种：
1.多个PDCCH候选对应的时域资源起始符号的先后关系；
如：使用时域资源起始符号较早或最早的PDCCH候选作为参考PDCCH候选；或者，使用时域资源起始符号较晚或最晚的PDCCH候选作为参考PDCCH候选。
其中，使用时域资源起始符号较早或最早的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用时域资源起始符号较早的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用时域资源起始符号最早的PDCCH候选作为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用时域资源起始符号在时序上排列在第1位的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用时域资源起始符号在时序上排列在第1位的PDCCH candidate作为preference PDCCH candidate。
其中，使用时域资源起始符号较晚或最晚的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用时域资源起始符号较晚的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用时域资源起始符号最晚的PDCCH候选作为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用时域资源起始符号在时序上排列在第2位的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用时域资源起始符号在时序上排列在第4位 的PDCCH candidate作为preference PDCCH candidate。
2.多个PDCCH候选对应的时域资源结束符号的先后关系；
如：使用时域资源结束符号较早或最早的PDCCH候选作为参考PDCCH候选；或者，使用时域资源结束符号较晚或最晚的PDCCH候选作为参考PDCCH候选。
其中，使用时域资源结束符号较早或最早的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用时域资源结束符号较早的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用时域资源结束符号最早的PDCCH候选作为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用时域资源结束符号在时序上排列在第1位的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用时域资源结束符号在时序上排列在第1位的PDCCH candidate作为preference PDCCH candidate。
其中，使用时域资源结束符号较晚或最晚的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用时域资源结束符号较晚的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用时域资源结束符号最晚的PDCCH候选作为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用时域资源结束符号在时序上排列在第2位的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用时域资源结束符号在时序上排列在第4位的PDCCH candidate作为preference PDCCH candidate。
3.多个PDCCH候选对应的CORESET标识的大小关系；
如：使用CORESET标识最大或较大的PDCCH候选作为参考PDCCH候选；或者，使用CORESET标识最小或较小的PDCCH候选作为参考PDCCH候选。
其中，使用CORESET标识最大或较大的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用CORESET标识较大的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用CORESET标识最大的PDCCH候选作 为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用CORESET标识在总排列顺序(由小到大排列)中排列在第2位的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用CORESET标识在总排列顺序中排列在第4位的PDCCH candidate作为preference PDCCH candidate。
其中，使用CORESET标识最小或较小的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用CORESET标识较小的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用CORESET标识最小的PDCCH候选作为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用CORESET标识较小的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用CORESET标识最小的PDCCH candidate作为preference PDCCH candidate。
4.多个PDCCH候选对应的搜索空间集标识的大小关系。
如：使用搜索空间集标识最大或较大的PDCCH候选作为参考PDCCH候选；或者，使用搜索空间集标识最小或较小的PDCCH候选作为参考PDCCH候选。
其中，使用搜索空间集标识最大或较大的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用搜索空间集标识较大的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用搜索空间集标识最大的PDCCH候选作为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用搜索空间集标识在总排列顺序(由小到大排列)中排列在第2位的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用搜索空间集标识在总排列顺序中排列在第4位的PDCCH candidate作为preference PDCCH candidate。
其中，使用搜索空间集标识最小或较小的PDCCH候选作为参考PDCCH候选是指：当PDCCH候选的数量为2时，即上述N的取值为2时，则使用搜索 空间集标识较小的PDCCH候选作为参考PDCCH候选；当PDCCH候选的数量大于2时，即上述N的取值大于2时，则使用搜索空间集标识最小的PDCCH候选作为参考PDCCH候选。
示意性的，当PDCCH candidate的数量为2时，使用搜索空间集标识较小的PDCCH candidate作为preference PDCCH candidate；当PDCCH candidate的数量为4时，使用搜索空间集标识最小的PDCCH candidate作为preference PDCCH candidate。
可选地，在一套TCI状态用于多个PDCCH候选(PDCCH candidate)的情况下，从多个PDCCH候选(PDCCH candidate)中确定出参考PDCCH候选(Reference PDCCH candidate)后，该参考PDCCH候选可以包括多种用途，如：传输时域参数的确定、传输频域资源的确定等。针对传输时域参数和传输频域资源分别进行说明。
1、传输时域参数
Rel-15/16在很多时序确认上，都是基于PDCCH接收的起始符号或结束符号来确定的。而Rel-17中由于多个PDCCH candidate重复传输同一个DCI，那么在两个PDCCH candidate为时分复用(Time-Division Multiplexing，TDM)方式时，Rel-17需要确定一个Reference PDCCH candidate。
如：针对用于重复传输的两个PDCCH candidate，Rel-17定义了新的监听时机(Monitoring Occasion，MO)，如图3所示，在MO中包含两个PDCCH candidate在内，其中，PDCCH接收的起始符号为起始符号最早的PDCCH candidate对应的起始符号位置310，PDCCH接收的结束符号为结束符号最晚的PDCCH candidate对应的结束符号位置320。
故对于Rel-15/16中以PDCCH接收的结束符号为准的情况下，其参考PDCCH candidate对应结束符号最晚的PDCCH candidate；以PDCCH接收的起始符号为准的情况下，其参考PDCCH candidate对应起始符号最早的PDCCH candidate；还有一个特殊情况下使用开始符号最晚的PDCCH candidate作为参考PDCCH candidate，后续进行介绍。其中各个参考PDCCH candidate的使用场景如下进行具体介绍。
一、其中使用结束符号较晚的PDCCH candidate作为参考PDCCH候选主 要包括如下使用场景：
1.1用于确定是否需要使用默认TCI state来接收PDSCH/CSI-RS的调度偏移量scheduling offset；
1.2用于扩展PDCCH-PDSCH和PDCCH-PUSCH的顺序in-order传输的定义；
示意性的，对于一个被调度小区的任意两个混合自动重传(Hybrid Automatic Repeat reQuest，HARQ)进程标识，如果终端被在符号I结束的第一PDCCH调度了一个在符号j开始发送的PDSCH/PUSCH，那么终端不希望被在符号I之后结束的第二PDCCH调度一个在符号j之前开始发送的第二PDSCH/PUSCH。
1.3用于确定PUSCH的准备时间N2和CSI的计算时间Z，PDCCH的最后一个符号为基于参考PDCCH候选的最后一个符号；
1.4用于确定针对某些DL DCI的HARQ ACK反馈的时隙偏移值N，而这些DL DCI不包含PDSCH调度，比如用于半持续调度(Semi-Persistent Scheduling，SPS)释放的DCI，用于辅小区休眠指示的DCI，以及请求Type-3 HARQ-ACK的DCI；
1.5用于SPS PDSCH的撤销时序(14个符号)；
1.6用于PUCCH资源重写的时序(N3)；
1.7用于开启非激活定时器时长drx-InacitivityTimer；
1.8用于基于PDCCH调度的物理随机接入信道(Physical Random Access Channel，PRACH)发送的时序；
1.9用于PDCCH与被调度的PDSCH/AP-CSI-RS的子载波间隔(Subcarrier Spacing，SCS)不同时的跨载波调度情况下，PDSCH/AP-CSI-RS的接收准备时间，即最小的调度时延Npdsch和Ncsirs；
1.10用于相对实际actual功率余量(Power Headroom，PHR)的虚拟功率余量virtual PHR的时序条件；
1.11用于确定功率控制指令(Transmit Power Command，TPC)的应用窗口；
1.12用于确定AP-CSI的信道状态信息处理单元(CSI Processing Unit，CPU)占用时长；
1.13用于TS 38.214中，当包含“Minimum applicable scheduling offset indicator”域的DCI format 0_1or 1_1在时隙的前三个符号以外被接收到时，Table  5.3.1-1里的Zμ需要增加的情况下，如何确定DCI format 0_1or 1_1是否在时隙的前三个符号以外被接收到；
1.14用于确定DCI format 2_4指示的需要取消的符号集合；
1.15用于当触发SS set group切换的DCI format被检测到时，SS set group切换的时序(Pswitch)；
1.16用于当包含TPC指令的DCI format 2_2/2_3被检测到时，确定TPC指令是否还在TPC应用的时间窗口内；
1.17对于携带带宽部分(Bandwidth Part，BWP)切换的PDCCH span和CSI触发的时序上，使用包含结束时间较晚的PDCCH candidate的范围span作为参考；
1.18用于当接收到SPS PDSCH释放的DCI和SPS PDSCH在同一个时隙slot时，结束时间较晚的PDCCH candidate必须在SPS PDSCH结束之前结束；
1.19用于激活非零功率(Non-Zero-Power，NZP)CSI-RS资源/端口的确定，以及PUSCH上的第一个SP-CSI的CPU占用时长的确定；
1.20在波束失败恢复(Beam-Failure-Recovery，BFR)中，当携带BFR response的PDCCH candidate为具有链接关系的两个PDCCH candidate时，在结束时间较晚的PDCCH candidate的最后一个符号的28个符号之后，为波束/功率控制更新时间；
1.21作为一个限制，主要是针对当具有链接关系的两个PDCCH candidate用于调度PDSCH Type A时，两个PDCCH candidate都必须包含在时隙的前三个符号。
二、使用开始符号较早的PDCCH candidate作为参考PDCCH候选主要包 括如下使用场景：
2.1根据SRS资源索引(SRS Resource Index，SRI)确定最近发送的SRS资源；
2.2当多个PDCCH candidate不在同一个PDCCH MO时，使用时间较早的PDCCH candidate作为参考PDCCH candidate；其中：
i.用于确定counter DAI/total DAI和Type-2HARQ-ack codebook结构；
ii.用于基于最后一个DCI的PUCCH资源索引(PUCCH Resource Index， PRI)指示域确定用于PUCCH资源确定的最后一个DCI；
2.3用于基于DCI format 2_1(Pre-emption indication)来确定被中断的符号集合；
2.4用于基于DCI format 2_4来确定针对PUSCH/SRS的取消指示的PDCCH接收的第一个符号；
2.5当携带下行反馈信息DFI的PDCCH candidate为具有链接关系的两个PDCCH candidate时，使用开始时间较早的PDCCH candidate作为参考来确定对应指定HARQ进程号的PUSCH的DFI的有效性。
三、使用开始符号较晚的PDCCH candidate作为参考PDCCH candidate 的主要包括一个场景：对于PDSCH Type B的寻址mapping方式，用于指示PDSCH可调度的最早的时间以及起始和长度指示符SLIV的参考符号(当终端被配置了ReferenceofSLIV-ForDCIFormat1_2，而且K 0＝0)，需要使用一个参考PDCCH candidate。即Type B的PDSCH发送时间不能早于开始时间较晚的PDCCH candidate的开始时间。
2、传输频域资源
当两个PDCCH candidate对应的CORESET为频分复用(Frequency Division Multiplexing，FDM)方式时，由于两个CORESET的频域资源不同，如图4所示，而在Rel-15/16中，存在PUCCH/PUSCH/PDSCH的频域资源需要基于CORESET的频域资源400来确定的情况，所以在Rel-17中，需要确定两个CORESET中哪个CORESET为参考CORESET。
其中，包括如下情况中的至少一种：
一、PUCCH资源确定
当PUCCH资源集尺寸resource set size大于8时，确定用于发送该PDCCH调度的资源对应的HARQ-ACK的PUCCH资源。
相关技术中，PUCCH资源是根据该PDCCH对应的CORESET的资源单元(Control Channel Element，CCE)的数目和PDCCH candidate的起始CCE的索引值确定的，而当该PDCCH对应两个CORESET和/或两个SS set时，选择SS set  ID较小或者最小的SS set对应的CORESET。
二、PUSCH资源和PDSCH资源的频域资源确定
其中，PDSCH的频域资源确定如下：
对于在common SS发送的DCI format 1_0调度的PDSCH，描述为“对于非交织的VRB to PRB，VRB的n对应PRB的
Figure PCTCN2022095769-appb-000001
”，而这里的
Figure PCTCN2022095769-appb-000002
为相应的DCI对应的CORESET的最低编号的PRB。当相应的DCI由具有链接关系的两个PDCCH candidate携带时，以CORESET ID较小的CORESET的最低编号的PRB作为
Figure PCTCN2022095769-appb-000003
PUSCH的频域资源确定如下：
同PDSCH，对于DCI format 0_0(CRC为RNTI加扰不是TC-RNTI加扰)调度的PUSCH，且资源分配类型为类型2时，描述为“the uplink RB set is the lowest indexed one amongst uplink RB set(s)that intersects the lowest-indexed CCE of the PDCCH in which the UE detects the DCI 0_0 in the active downlink BWP”，当相应的DCI由具有链接关系的两个PDCCH candidate携带时，使用CORESET ID较小的CORESET的PDCCH candidate对应的最低编号的CCE为参考。
综上所述，本申请实施例提供的信道传输方法，当指示信息指示一套TCI state时，对于PDCCH接收，若被配置了多个具有链接关系的SS set，当终端采用该一套TCI state接收该PDCCH时，采用合理的参考PDCCH候选的确定方式，使得终端和基站之间在Reference PDCCH candidate采用上保持一致认识，从而提高基于unified TCI state的Multi-TRP传输的信号质量。
图5是本申请另一个示例性实施例提供的信道传输方法的流程图，以该方法被接入网设备执行为例进行说明，如图5所示，该方法包括如下步骤。
步骤501，向终端发送第一配置信息，第一配置信息用于配置具有链接关系的N个搜索空间集。
每个SS set中包括一个物理下行控制信道PDCCH候选candidate。
可选地，N个PDCCH候选用于一个PDCCH的接收。
示意性的，以两个搜索空间集为例进行说明，无线资源控制(Radio Resource Control，RRC)信令配置两个具有链接关系的SS set，两个SS set中一个SS set 包含第一PDCCH candidate，另一个SS set包括第二PDCCH candidate，两个PDCCH candidate用于一个PDCCH的接收，且每个SS set关联各自的CORESET，每个CORESET都配置有一个TCI state。其中两个SS set可以为同一个或不同；两个CORESET可以为同一个或不同。两个CORESET的TCI state可以相同或不同。当两个CORESET的TCI state不同时，两个PDCCH candidate对应不同的TCI状态。
步骤502，向终端发送指示信息，在指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
在一些实施例中，该一套TCI状态用于N个PDCCH候选中的一个目标PDCCH候选，即对上述指示信息的理解是基于PDCCH非repetition rule的；在另一些实施例中，该一套TCI状态用于N个PDCCH候选中的多个PDCCH候选，即对上述指示信息的理解是基于PDCCH repetition rule的，本实施例对此不加以限定。
在一个可选的实施例中，在确定参考PDCCH候选后，基于参考PDCCH候选确定传输时域参数；或者，基于参考PDCCH候选确定传输频域资源。
在一个可选的实施例中，上述指示信息包括第一指示信息，该第一指示信息用于指示一套TCI状态或者多套TCI状态，其中，第一指示信息包括MAC CE信令，或，第一指示信息包括MAC CE信令和DCI信息。
可选地，上述指示信息包括第一指示信息和第二指示信息，也即，指示信息还包括第二指示信息，其中，第一指示信息用于指示N套TCI状态，第一指示信息包含MAC CE，或包含MAC CE和DCI。第二指示信息用于指示N套TCI状态中的其中一套或者M套TCI状态用于PDCCH的接收，第二指示信息包括RRC信令、MAC CE信令和DCI信息中的至少一种。其中，M的取值与上述PDCCH候选的数量相同或者不同，M为大于1的整数。
可选地，当指示信息中包括第一指示信息和第二指示信息时，对于其他PDCCH，比如不是该具有链接关系的SS set对应的PDCCH的接收，或对于PDSCH，PUCCH，PUSCH的传输等，都各自需要独立的第二指示信息分别去指示是使用第一指示信息中的哪一套或多套TCI状态来进行其他PDCCH，或PDSCH，PUCCH，PUSCH的传输。
在一个可选的实施例中，一套TCI状态包括一个联合(joint)TCI状态；或 者，一套TCI状态包括一个下行TCI状态(或称为下行独立TCI状态)；或者，一套TCI状态包括一个上行TCI状态(或称为上行独立TCI状态)；或者，一套TCI状态包括一个上行TCI状态和一个下行TCI状态。
值得注意的是，用于PDCCH或PDSCH或下行信号的传输的时候，一套TCI状态需要包含联合TCI状态或下行TCI状态，但是不能只包含上行TCI状态。用于PUCCH或PUSCH或上行信号的传输时，一套TCI状态需要包含联合TCI状态或上行TCI状态，但是不能只包含下行TCI状态。
在一个可选的实施例中，指示信息指示的至少一套TCI状态用于至少两种信道和/或信号的传输，其中包括PDCCH，信号包括信道状态信息参考信号CSI-RS和探测参考信号SRS的至少一项。
也即，指示信息指示的每套TCI状态为用于至少两种信道和/或信号的TCI状态，可以称为unified TCI state或indicated TCI state。其中，上行信道包括PUCCH、PUSCH，下行信道包括PDCCH、PDSCH，上行信号包括探测参考信号SRS，下行信号包括信道状态信息参考信号CSI-RS。
综上所述，本申请实施例提供的信道传输方法，当指示信息指示一套TCI state时，对于PDCCH接收，若被配置了多个具有链接关系SS set，当终端采用该一套TCI state接收该PDCCH时，采用合理的参考PDCCH候选的确定方式，使得终端和基站之间在Reference PDCCH candidate采用上保持一致认识，从而提高基于unified TCI state的Multi-TRP传输的信号质量。
图6是本申请另一个示例性实施例提供的信道传输方法的流程图，以该方法应用于终端和接入网设备之间为例，如图6所示，该方法包括如下步骤。
步骤601，接入网设备向终端发送第一配置信息，第一配置信息用于配置具有链接关系的N个搜索空间集。
每个SS set中包括一个物理下行控制信道PDCCH候选candidate。
可选地，N个PDCCH候选用于一个PDCCH的接收。
示意性的，以两个搜索空间集为例进行说明，无线资源控制(Radio Resource Control，RRC)信令配置两个具有链接关系的SS set，两个SS set中一个SS set包含第一PDCCH candidate，另一个SS set包括第二PDCCH candidate，两个PDCCH candidate用于一个PDCCH的接收，且每个SS set关联各自的CORESET， 每个CORESET都配置有一个TCI state。其中两个SS set可以为同一个或不同；两个CORESET可以为同一个或不同。两个CORESET的TCI state可以相同或不同。当两个CORESET的TCI state不同时，两个PDCCH candidate对应不同的TCI状态。
步骤602，接入网设备向终端发送指示信息。
在一个可选的实施例中，上述指示信息包括第一指示信息，该第一指示信息用于指示一套TCI状态或者多套TCI状态，其中，第一指示信息包括MAC CE信令，或，第一指示信息包括MAC CE信令和DCI信息。
可选地，上述指示信息包括第一指示信息和第二指示信息，也即，指示信息还包括第二指示信息，其中，第一指示信息用于指示N套TCI状态，第一指示信息包含MAC CE，或包含MAC CE和DCI。第二指示信息用于指示N套TCI状态中的其中一套或者M套TCI状态用于PDCCH的接收，第二指示信息包括RRC信令、MAC CE信令和DCI信息中的至少一种。其中，M的取值与上述PDCCH候选的数量相同或者不同，M为大于1的整数。
可选地，当指示信息中包括第一指示信息和第二指示信息时，对于其他PDCCH，比如不是该具有链接关系的SS set对应的PDCCH的接收，或对于PDSCH，PUCCH，PUSCH的传输等，都各自需要独立的第二指示信息分别去指示是使用第一指示信息中的哪一套或多套TCI状态来进行其他PDCCH，或PDSCH，PUCCH，PUSCH的传输。
在一个可选的实施例中，一套TCI状态包括一个联合(joint)TCI状态；或者，一套TCI状态包括一个下行TCI状态(或称为下行独立TCI状态)；或者，一套TCI状态包括一个上行TCI状态(或称为上行独立TCI状态)；或者，一套TCI状态包括一个上行TCI状态和一个下行TCI状态。
值得注意的是，用于PDCCH或PDSCH或下行信号的传输的时候，一套TCI状态需要包含联合TCI状态或下行TCI状态，但是不能只包含上行TCI状态。用于PUCCH或PUSCH或上行信号的传输时，一套TCI状态需要包含联合TCI状态或上行TCI状态，但是不能只包含下行TCI状态。
可选地，针对本申请实施例中的PDCCH candidate，一套TCI状态包括一个联合(joint)TCI状态；或者，一套TCI状态包括一个下行TCI状态(或称为下行独立TCI状态)；或者，一套TCI状态包括一个上行TCI状态和一个下行TCI 状态。
在一个可选的实施例中，指示信息指示的至少一套TCI状态用于至少两种信道和/或信号的传输，其中包括PDCCH，信号包括信道状态信息参考信号CSI-RS和探测参考信号SRS的至少一项。
也即，指示信息指示的每套TCI状态为用于至少两种信道和/或信号的TCI状态，可以称为unified TCI state或indicated TCI state。其中，上行信道包括PUCCH、PUSCH，下行信道包括PDCCH、PDSCH，上行信号包括探测参考信号SRS，下行信号包括信道状态信息参考信号CSI-RS。
步骤603，终端和接入网设备在指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
其中，终端在指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行接收；接入网设备在指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行发送。
在一些实施例中，该一套TCI状态用于N个PDCCH候选中的一个目标PDCCH候选，即对上述指示信息的理解是基于PDCCH非repetition rule的；在另一些实施例中，该一套TCI状态用于N个PDCCH候选中的多个PDCCH候选，即对上述指示信息的理解是基于PDCCH repetition rule的，本实施例对此不加以限定。
在一个可选的实施例中，在确定参考PDCCH候选后，基于参考PDCCH候选确定传输时域参数；或者，基于参考PDCCH候选确定传输频域资源。
综上所述，本申请实施例提供的信道传输方法，当指示信息指示一套TCI state时，对于PDCCH接收，若被配置了多个具有链接关系SS set，当终端采用该一套TCI state接收该PDCCH时，采用合理的参考PDCCH候选的确定方式，使得终端和基站之间在Reference PDCCH candidate采用上保持一致认识，从而提高基于unified TCI state的Multi-TRP传输的信号质量。
图7是本申请一个示例性实施例提供的信道传输装置的结构框图。如图7所示，该装置包括：
接收模块710，用于接收第一配置信息，所述第一配置信息用于配置具有链 接关系的N个搜索空间集，每个所述搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
所述接收模块710，还用于接收指示信息，在所述指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
在一个可选的实施例中，所述N个PDCCH候选用于一个PDCCH的接收。
在一个可选的实施例中，所述一套TCI状态用于所述N个PDCCH候选中的一个目标PDCCH候选；或者
所述一套TCI状态用于所述N个PDCCH候选中的多个PDCCH候选。
在一个可选的实施例中，所述装置还包括：
处理模块720，用于在所述一套TCI状态用于一个目标PDCCH候选的情况下，将所述目标PDCCH候选确定为所述参考PDCCH候选。
在一个可选的实施例中，所述接收模块710，还用于接收第二配置信息，所述第二配置信息用于指示所述一套TCI状态与所述目标PDCCH候选的对应关系；或者
所述处理模块720，还用于基于默认映射关系从N个PDCCH候选中确定所述一套TCI状态对应的所述目标PDCCH候选。
在一个可选的实施例中，所述目标PDCCH候选为N个PDCCH候选中对应的控制资源集CORESET标识最小或较小的PDCCH候选；或者
所述目标PDCCH候选为N个PDCCH候选中对应的搜索空间集标识最小或较小的PDCCH候选；或者
所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET池索引CORESETPoolIndex最小或较小的PDCCH候选；或者
所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET组索引CORESET group ID最小或较小的PDCCH候选。
在一个可选的实施例中，所述装置还包括：
处理模块720，用于在所述一套TCI状态用于多个PDCCH候选的情况下，基于多个PDCCH候选之间的配置参数关系，从多个PDCCH候选中确定出所述参考PDCCH候选。
在一个可选的实施例中，所述配置参数关系包括如下关系中的至少一种：
多个PDCCH候选对应的时域资源起始符号的先后关系；
多个PDCCH候选对应的时域资源结束符号的先后关系；
多个PDCCH候选对应的CORESET标识的大小关系；
多个PDCCH候选对应的搜索空间集标识的大小关系。
在一个可选的实施例中，处理模块720，还用于使用所述时域资源起始符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块720，还用于使用所述时域资源起始符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块720，还用于使用所述时域资源结束符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块720，还用于使用所述时域资源结束符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块720，还用于使用所述CORESET标识最大或较大的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块720，还用于使用所述CORESET标识最小或较小的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块720，还用于使用所述搜索空间集标识最大或较大的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块720，还用于使用所述搜索空间集标识最小或较小的PDCCH候选作为所述参考PDCCH候选。
在一个可选的实施例中，所述装置还包括：
处理模块720，用于基于所述参考PDCCH候选确定传输时域参数；或者
所述处理模块720，还用于基于所述参考PDCCH候选确定传输频域资源。
在一个可选的实施例中，所述指示信息包括第一指示信息，所述第一指示信息用于指示所述一套TCI状态或者多套TCI状态；
所述第一指示信息包括媒体访问控制控制单元MAC CE信令；或者，所述第一指示信息包括MAC CE信令和下行控制信息DCI。
在一个可选的实施例中，所述指示信息还包括第二指示信息，所述第一指示信息用于指示N套TCI状态，所述第二指示信息用于指示所述N套TCI状态中的其中一套或多套TCI状态用于PDCCH的接收；
所述第二指示信息包括无线资源控制RRC信令、MAC CE信令和DCI中的至少一种。
在一个可选的实施例中，所述一套TCI状态包括一个联合TCI状态；或者
所述一套TCI状态包括一个下行TCI状态；或者
所述一套TCI状态包括一个上行TCI状态；或者
所述一套TCI状态包括一个上行TCI状态和一个下行TCI状态。
在一个可选的实施例中，所述指示信息指示的所述一套TCI状态用于至少两种信道和/或信号的传输，其中包括PDCCH，所述信号包括信道状态信息参考信号CSI-RS和探测参考信号SRS的至少一项。
图8是本申请一个示例性实施例提供的信道传输装置的结构框图。如图8所示，该装置包括：
发送模块810，用于向终端发送第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
所述发送模块810，还用于向所述终端发送指示信息，在所述指示信息指示一套传输配置指示状态TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
在一个可选的实施例中，所述N个PDCCH候选用于一个PDCCH的发送。
在一个可选的实施例中，所述一套TCI状态用于所述N个PDCCH候选中的一个目标PDCCH候选；或者
所述一套TCI状态用于所述N个PDCCH候选中的多个PDCCH候选。
在一个可选的实施例中，所述装置还包括：
处理模块820，用于在所述一套TCI状态用于一个目标PDCCH候选的情况下，将所述目标PDCCH候选确定为所述参考PDCCH候选。
在一个可选的实施例中，所述发送模块810，还用于向所述终端发送第二配置信息，所述第二配置信息用于指示所述一套TCI状态与所述目标PDCCH候选的对应关系；或者
所述处理模块820，还用于基于默认映射关系从N个PDCCH候选中确定所述一套TCI状态对应的所述目标PDCCH候选。
在一个可选的实施例中，所述目标PDCCH候选为N个PDCCH候选中对应的CORESET标识最小或较小的PDCCH候选；或者
所述目标PDCCH候选为N个PDCCH候选中对应的搜索空间集标识最小或较小的PDCCH候选；或者
所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET池索引CORESETPoolIndex最小或较小的PDCCH候选；或者
所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET组索引最小或较小的PDCCH候选。
在一个可选的实施例中，所述装置还包括：
处理模块820，用于在所述一套TCI状态用于多个PDCCH候选的情况下，基于多个PDCCH候选之间的配置参数关系，从多个PDCCH候选中确定出所述参考PDCCH候选。
在一个可选的实施例中，所述配置参数关系包括如下关系中的至少一种：
多个PDCCH候选对应的时域资源起始符号的先后关系；
多个PDCCH候选对应的时域资源结束符号的先后关系；
多个PDCCH候选对应的CORESET标识的大小关系；
多个PDCCH候选对应的搜索空间集标识的大小关系。
在一个可选的实施例中，处理模块820，还用于使用所述时域资源起始符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块820，还用于使用所述时域资源起始符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块820，还用于使用所述时域资源结束符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块820，还用于使用所述时域资源结束符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块820，还用于使用所述CORESET标识最大或较大的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块820，还用于使用所述CORESET标识最小或较小的PDCCH候选作为所述参考PDCCH候选；或者，
处理模块820，还用于使用所述搜索空间集标识最大或较大的PDCCH候选 作为所述参考PDCCH候选；或者，
处理模块820，还用于使用所述搜索空间集标识最小或较小的PDCCH候选作为所述参考PDCCH候选。
在一个可选的实施例中，所述指示信息包括第一指示信息，示所所述第一指示信息用于指述一套TCI状态或者多套TCI状态；
所述第一指示信息包括媒体访问控制控制单元MAC CE信令；或者，所述第一指示信息包括MAC CE信令和下行控制信息DCI。
在一个可选的实施例中，所述指示信息还包括第二指示信息，所述第一指示信息用于指示N套TCI状态，所述第二指示信息用于指示所述N套TCI状态中的其中一套或多套TCI状态用于PDCCH的接收；
所述第二指示信息包括无线资源控制RRC信令、MAC CE信令和DCI中的至少一种。
在一个可选的实施例中，所述一套TCI状态包括一个联合TCI状态；或者
所述一套TCI状态包括一个下行TCI状态；或者
所述一套TCI状态包括一个上行TCI状态；或者
所述一套TCI状态包括一个上行TCI状态和一个下行TCI状态。
在一个可选的实施例中，所述指示信息指示的所述一套TCI状态用于至少两种信道和/或信号的传输，其中包括PDCCH，所述信号包括CSI-RS和SRS的至少一项。
图9示出了本公开一个示例性实施例提供的通信设备900(终端设备或网络设备)的结构示意图，该通信设备900包括：处理器901、接收器902、发射器903、存储器904和总线905。
处理器901包括一个或者一个以上处理核心，处理器901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902和发射器903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904通过总线905与处理器901相连。
存储器904可用于存储至少一个指令，处理器901用于执行该至少一个指令，以实现上述方法实施例中的各个步骤。
此外，存储器904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(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信道传输系统，所述系统包括：终端设备和接入网设备；
所述终端设备包括如图7所示实施例提供的信道传输装置；
所述接入网设备包括如图8所示实施例提供的信道传输装置。
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信道传输方法中由终端执行的步骤，以及信道传输方法中由网络设备执行的步骤。
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 (34)

  1. 一种信道传输方法，其特征在于，被终端执行，所述方法包括：
    接收第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个所述搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
    接收指示信息，在所述指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
  2. 根据权利要求1所述的方法，其特征在于，所述N个PDCCH候选用于一个PDCCH的接收；
    所述一套TCI状态用于所述N个PDCCH候选中的一个目标PDCCH候选；或者，
    所述一套TCI状态用于所述N个PDCCH候选中的多个PDCCH候选。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    在所述一套TCI状态用于一个目标PDCCH候选的情况下，将所述目标PDCCH候选确定为所述参考PDCCH候选。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    接收第二配置信息，所述第二配置信息用于指示所述一套TCI状态与所述目标PDCCH候选的对应关系；或者，
    基于默认映射关系从N个PDCCH候选中确定所述一套TCI状态对应的所述目标PDCCH候选。
  5. 根据权利要求4所述的方法，其特征在于，
    所述目标PDCCH候选为N个PDCCH候选中对应的控制资源集CORESET标识最小的PDCCH候选；或者，
    所述目标PDCCH候选为N个PDCCH候选中对应的搜索空间集标识最小的PDCCH候选；或者，
    所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET 池索引CORESETPoolIndex最小的PDCCH候选；或者，
    所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET组索引CORESET group ID最小的PDCCH候选。
  6. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    在所述一套TCI状态用于多个PDCCH候选的情况下，基于多个PDCCH候选之间的配置参数关系，从多个PDCCH候选中确定出所述参考PDCCH候选。
  7. 根据权利要求6所述的方法，其特征在于，所述配置参数关系包括如下关系中的至少一种：
    多个PDCCH候选对应的时域资源起始符号的先后关系；
    多个PDCCH候选对应的时域资源结束符号的先后关系；
    多个PDCCH候选对应的CORESET标识的大小关系；
    多个PDCCH候选对应的搜索空间集标识的大小关系。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    使用所述时域资源起始符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述时域资源起始符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述时域资源结束符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述时域资源结束符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选。
  9. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    使用所述CORESET标识最大或较大的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述CORESET标识最小或较小的PDCCH候选作为所述参考PDCCH候选。
  10. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    使用所述搜索空间集标识最大或较大的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述搜索空间集标识最小或较小的PDCCH候选作为所述参考PDCCH候选。
  11. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    基于所述参考PDCCH候选确定传输时域参数；或者，
    基于所述参考PDCCH候选确定传输频域资源。
  12. 根据权利要求1所述的方法，其特征在于，所述指示信息包括第一指示信息，所述第一指示信息用于指示所述一套TCI状态或者多套TCI状态；
    所述第一指示信息包括媒体访问控制控制单元MAC CE信令；或者，所述第一指示信息包括MAC CE信令和下行控制信息DCI。
  13. 根据权利要求12所述的方法，其特征在于，
    所述指示信息还包括第二指示信息，所述第一指示信息用于指示N套TCI状态，所述第二指示信息用于指示所述N套TCI状态中的其中一套或多套TCI状态用于PDCCH的接收；
    所述第二指示信息包括无线资源控制RRC信令、MAC CE信令和DCI中的至少一种。
  14. 根据权利要求1所述的方法，其特征在于，
    所述一套TCI状态包括一个联合TCI状态；或者，
    所述一套TCI状态包括一个下行TCI状态；或者，
    所述一套TCI状态包括一个上行TCI状态；或者，
    所述一套TCI状态包括一个上行TCI状态和一个下行TCI状态。
  15. 根据权利要求1所述的方法，其特征在于，
    所述指示信息指示的所述一套TCI状态用于至少两种信道和/或信号的传输，其中包括PDCCH，所述信号包括信道状态信息参考信号CSI-RS和探测参考信号SRS的至少一项。
  16. 一种信道传输方法，其特征在于，被接入网设备执行，所述方法包括：
    向终端发送第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
    向所述终端发送指示信息，在所述指示信息指示一套传输配置指示状态TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
  17. 根据权利要求15所述的方法，其特征在于，所述N个PDCCH候选用于一个PDCCH的发送；
    所述一套TCI状态用于所述N个PDCCH候选中的一个目标PDCCH候选；或者，
    所述一套TCI状态用于所述N个PDCCH候选中的多个PDCCH候选。
  18. 根据权利要求17所述的方法，其特征在于，所述方法还包括：
    在所述一套TCI状态用于一个目标PDCCH候选的情况下，将所述目标PDCCH候选确定为所述参考PDCCH候选。
  19. 根据权利要求18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配置信息，所述第二配置信息用于指示所述一套TCI状态与所述目标PDCCH候选的对应关系；或者，
    基于默认映射关系从N个PDCCH候选中确定所述一套TCI状态对应的所述目标PDCCH候选。
  20. 根据权利要求19所述的方法，其特征在于，
    所述目标PDCCH候选为N个PDCCH候选中对应的CORESET标识最小的PDCCH候选；或者，
    所述目标PDCCH候选为N个PDCCH候选中对应的搜索空间集标识最小的PDCCH候选；或者，
    所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET池索引CORESETPoolIndex最小的PDCCH候选；或者，
    所述目标PDCCH候选为N个PDCCH候选中对应的CORESET的CORESET组索引最小的PDCCH候选。
  21. 根据权利要求17所述的方法，其特征在于，所述方法还包括：
    在所述一套TCI状态用于多个PDCCH候选的情况下，基于多个PDCCH候选之间的配置参数关系，从多个PDCCH候选中确定出所述参考PDCCH候选。
  22. 根据权利要求21所述的方法，其特征在于，所述配置参数关系包括如下关系中的至少一种：
    多个PDCCH候选对应的时域资源起始符号的先后关系；
    多个PDCCH候选对应的时域资源结束符号的先后关系；
    多个PDCCH候选对应的CORESET标识的大小关系；
    多个PDCCH候选对应的搜索空间集标识的大小关系。
  23. 根据权利要求22所述的方法，其特征在于，所述方法还包括：
    使用所述时域资源起始符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述时域资源起始符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述时域资源结束符号较早或最早的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述时域资源结束符号较晚或最晚的PDCCH候选作为所述参考PDCCH候选。
  24. 根据权利要求22所述的方法，其特征在于，所述方法还包括：
    使用所述CORESET标识最大或较大的PDCCH候选作为所述参考PDCCH 候选；或者，
    使用所述CORESET标识最小或较小的PDCCH候选作为所述参考PDCCH候选。
  25. 根据权利要求22所述的方法，其特征在于，所述方法还包括：
    使用所述搜索空间集标识最大或较大的PDCCH候选作为所述参考PDCCH候选；或者，
    使用所述搜索空间集标识最小或较小的PDCCH候选作为所述参考PDCCH候选。
  26. 根据权利要求16所述的方法，其特征在于，
    所述指示信息包括第一指示信息，示所所述第一指示信息用于指述一套TCI状态或者多套TCI状态；
    所述第一指示信息包括媒体访问控制控制单元MAC CE信令；或者，所述第一指示信息包括MAC CE信令和下行控制信息DCI。
  27. 根据权利要求26所述的方法，其特征在于，
    所述指示信息还包括第二指示信息，所述第一指示信息用于指示N套TCI状态，所述第二指示信息用于指示所述N套TCI状态中的其中一套或多套TCI状态用于PDCCH的接收；
    所述第二指示信息包括无线资源控制RRC信令、MAC CE信令和DCI中的至少一种。
  28. 根据权利要求16所述的方法，其特征在于，
    所述一套TCI状态包括一个联合TCI状态；或者，
    所述一套TCI状态包括一个下行TCI状态；或者，
    所述一套TCI状态包括一个上行TCI状态；或者，
    所述一套TCI状态包括一个上行TCI状态和一个下行TCI状态。
  29. 根据权利要求16所述的方法，其特征在于，
    所述指示信息指示的所述一套TCI状态用于至少两种信道和/或信号的传输，其中包括PDCCH，所述信号包括CSI-RS和SRS的至少一项。
  30. 一种信道传输装置，其特征在于，所述装置包括：
    接收模块，用于接收第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个所述搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
    所述接收模块，还用于接收指示信息，在所述指示信息指示一套传输配置指示TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
  31. 一种信道传输装置，其特征在于，所述装置包括：
    发送模块，用于向终端发送第一配置信息，所述第一配置信息用于配置具有链接关系的N个搜索空间集，每个搜索空间集中包括一个物理下行控制信道PDCCH候选，N为大于1的整数；
    所述发送模块，还用于向所述终端发送指示信息，在所述指示信息指示一套传输配置指示状态TCI状态的情况下，从N个PDCCH候选中确定出参考PDCCH候选进行传输。
  32. 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；
    用于存储所述处理器的可执行信令的存储器；
    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任一所述的信道传输方法。
  33. 一种接入网设备，其特征在于，所述接入网设备包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储所述处理器的可执行信令的存储器；
    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16至29任一所述的信道传输方法。
  34. 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29任一所述的信道传输方法。
PCT/CN2022/095769 2022-05-27 2022-05-27 信道传输方法、装置、设备及可读存储介质 WO2023226047A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/095769 WO2023226047A1 (zh) 2022-05-27 2022-05-27 信道传输方法、装置、设备及可读存储介质
CN202280001922.7A CN115136539A (zh) 2022-05-27 2022-05-27 信道传输方法、装置、设备及可读存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/095769 WO2023226047A1 (zh) 2022-05-27 2022-05-27 信道传输方法、装置、设备及可读存储介质

Publications (1)

Publication Number Publication Date
WO2023226047A1 true WO2023226047A1 (zh) 2023-11-30

Family

ID=83388131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/095769 WO2023226047A1 (zh) 2022-05-27 2022-05-27 信道传输方法、装置、设备及可读存储介质

Country Status (2)

Country Link
CN (1) CN115136539A (zh)
WO (1) WO2023226047A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210235455A1 (en) * 2020-01-29 2021-07-29 Qualcomm Incorporated Non-transparent single frequency network scheme
US20210360667A1 (en) * 2020-05-13 2021-11-18 Electronics And Telecommunications Research Institute Method and apparatus for transmitting and receiving downlink control channel in communication system
CN114175821A (zh) * 2021-10-29 2022-03-11 北京小米移动软件有限公司 传输配置指示状态确定方法、装置及存储介质
WO2022083691A1 (zh) * 2020-10-23 2022-04-28 大唐移动通信设备有限公司 传输资源确定方法、装置及存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112236966B (zh) * 2019-04-30 2023-02-24 Oppo广东移动通信有限公司 无线通信的方法、终端设备和网络设备
EP4231563A4 (en) * 2020-10-14 2023-11-29 Beijing Xiaomi Mobile Software Co., Ltd. METHOD AND DEVICE FOR DETERMINING TCI STATUS, DEVICE AND STORAGE MEDIUM
CN114208354A (zh) * 2021-10-29 2022-03-18 北京小米移动软件有限公司 物理下行共享信道pdsch配置方法及装置
WO2023070563A1 (zh) * 2021-10-29 2023-05-04 北京小米移动软件有限公司 传输配置指示状态确定方法、装置及存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210235455A1 (en) * 2020-01-29 2021-07-29 Qualcomm Incorporated Non-transparent single frequency network scheme
US20210360667A1 (en) * 2020-05-13 2021-11-18 Electronics And Telecommunications Research Institute Method and apparatus for transmitting and receiving downlink control channel in communication system
WO2022083691A1 (zh) * 2020-10-23 2022-04-28 大唐移动通信设备有限公司 传输资源确定方法、装置及存储介质
CN114175821A (zh) * 2021-10-29 2022-03-11 北京小米移动软件有限公司 传输配置指示状态确定方法、装置及存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "Further Enhancements on MIMO for NR", 3GPP DRAFT; RP-213470, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. TSG RAN, no. Electronic Meeting; 20211206 - 20211217, 1 December 2021 (2021-12-01), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052084285 *

Also Published As

Publication number Publication date
CN115136539A (zh) 2022-09-30

Similar Documents

Publication Publication Date Title
EP3466151B1 (en) Method and device for sidelink data duplication
US10798723B2 (en) Vehicle to everything communication control method and apparatus therefor
CN109923843B (zh) 新无线电中的循环前缀管理
CN113261224A (zh) 用于单dci多时隙调度的harq处理
JP7384930B2 (ja) アップリンク送信プリエンプション
EP3963782B1 (en) Hybrid automatic repeat request (harq) feedback for multiple physical downlink shared channel (pdsch) with downlink (dl) semi-persistent scheduling
US20220256562A1 (en) Methods of resolving collision between sr and pusch
US11910349B2 (en) Physical layer signaling by devices for requesting positioning-resources
US20220417951A1 (en) Semi-persistent scheduling for multiple services
WO2019138079A1 (en) Configured grants in time division duplex communications
KR20230008018A (ko) 사운드 참조 신호 시간 번들링의 방법
WO2023226047A1 (zh) 信道传输方法、装置、设备及可读存储介质
US20240172321A1 (en) Methods, Node, UE and Computer Readable Media for Aligning Partial Sensing Configuration with DRX Configuration
WO2024031806A1 (zh) 回程链路的波束确定方法、装置、介质及产品
CN114514771B (zh) 用于早期测量报告的增强过程
US11910350B2 (en) Physical layer signaling by base stations for provisioning positioning-resources
US12004166B2 (en) Information transmission method and apparatus, device, and storage medium
JP7355842B2 (ja) 端末、無線通信方法、基地局及びシステム
WO2023155174A1 (zh) 通信方法、装置、设备及可读存储介质
CN117083949A (zh) 针对多时隙物理上行链路共享信道上的单个传输块传送的冲突处置、上行链路控制信息复用和重复
WO2023068993A1 (en) Method for handling sidelink communication between user equipments using quality indications of sidelink carriers.
CN114514771A (zh) 用于早期测量报告的增强过程
WO2023046872A1 (en) Terminal devices, network devices, and methods thereof
CN114731693A (zh) 上行链路传输取消的方法
CN116848921A (zh) 在多订户识别模块调离期间处理带宽部分切换的方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22943245

Country of ref document: EP

Kind code of ref document: A1