WO2022151267A1 - 一种监听方法及设备 - Google Patents

一种监听方法及设备 Download PDF

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Publication number
WO2022151267A1
WO2022151267A1 PCT/CN2021/071922 CN2021071922W WO2022151267A1 WO 2022151267 A1 WO2022151267 A1 WO 2022151267A1 CN 2021071922 W CN2021071922 W CN 2021071922W WO 2022151267 A1 WO2022151267 A1 WO 2022151267A1
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pdcch
candidate
pdcch candidates
candidates
same
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PCT/CN2021/071922
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English (en)
French (fr)
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焦淑蓉
高飞
花梦
官磊
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华为技术有限公司
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Priority to PCT/CN2021/071922 priority Critical patent/WO2022151267A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a monitoring method and device.
  • a network device can send downlink control information (DCI) to a terminal device through a physical downlink control channel (PDCCH).
  • DCI downlink control information
  • PDCCH Physical downlink control channel
  • the PDCCH is transmitted in multiple control channel elements (CCEs), and the number of CCEs occupied by the PDCCH may be called the aggregation level (AL) of the PDCCH. For example, if the PDCCH occupies 4 CCEs, then the Aggregation level is 4.
  • the network device can pre-configure the terminal device with a set of PDCCH candidates corresponding to each DCI through high-level signaling, but does not notify the terminal device on which PDCCH candidate or candidates the DCI will be sent on, but the terminal device will send the DCI according to the configuration information sent by the network device.
  • the DCI that is currently expected to be received can be determined, so the terminal device can monitor the PDCCH candidates in the PDCCH candidate set corresponding to the DCI currently expected to receive according to the configuration information.
  • the set of PDCCH candidates corresponding to the same AL is called the search space ( search space), and the sum of the search spaces corresponding to multiple ALs is called the search space set.
  • the terminal device Since monitoring is complex and consumes a lot of power consumption, before monitoring a PDCCH candidate, the terminal device needs to determine the number of monitoring times for monitoring the PDCCH candidate. Since the PDCCH candidates that make up different search spaces may overlap with each other, the existing protocol specifies a calculation rule for the number of blind detection (BD) times (commonly known as the BD count one operation) or counts as one PDCCH candidate that needs to be monitored. , that is, for at least two PDCCH candidates that overlap each other, if the time-frequency resources occupied by them are exactly the same and the number of information bits of the DCI corresponding to the two PDCCH candidates is the same, the monitoring of the at least two PDCCH candidates can only be Do it once, you don't need to do it separately.
  • BD blind detection
  • the network device in order to improve the reception performance of the PDCCH, can use the PDCCH repetition technology to send the same DCI. / or combined gain.
  • the conditions corresponding to the above BD count one operation are specified under the architecture without PDCCH repetition, and there is currently no corresponding BD count one rule for the architecture with PDCCH repetition.
  • the present application provides a monitoring method and device, which help to provide a corresponding BD count one rule in a framework applying the PDCCH repetition technology, so as to reduce the problem of the complexity of monitoring PDCCH candidates.
  • an embodiment of the present application provides a monitoring method, which can be applied to a terminal device; wherein, the terminal device has a function of receiving the same downlink control information DCI by using at least two physical downlink control channel PDCCH candidates.
  • the method may include: receiving first information from a network device; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0; The configuration information of the M PDCCH candidates, the M PDCCH candidates are divided into N candidate sets; wherein, the first candidate set in the N candidate sets includes at least one first PDCCH candidate, the at least one The first PDCCH candidate corresponds to the same monitoring, the first candidate set is any one of the N candidate sets, N is an integer greater than 0, and N is less than or equal to M; One listen for each candidate set.
  • the terminal device can divide the M PDCCH candidates according to the configuration information about the M PDCCH candidates from the network device, and divide at least one PDCCH candidate corresponding to the same monitoring time. to the same PDCCH candidate set, and perform monitoring once according to each PDCCH candidate set, thereby reducing the overhead of terminal equipment monitoring the PDCCH and improving the monitoring efficiency.
  • monitoring refers to monitoring a PDCCH candidate. Since the network device only configures the terminal device with the PDCCH candidate set corresponding to each DCI, but does not notify the terminal device on which PDCCH candidate or candidates to send DCI, not every PDCCH candidate will carry DCI, and the terminal device needs to send the DCI on each PDCCH candidate. Decoding is attempted on the PDCCH candidate to receive the corresponding DCI, that is, the PDCCH candidate is monitored.
  • the BD count one operation is the operation of determining that at least two PDCCH candidates correspond to the same monitoring, or, in other words, the operation of counting at least two PDCCH candidates as one PDCCH candidate to be monitored, and N can also be referred to as monitoring M PDCCH candidates. maximum number of times.
  • any two first PDCCH candidates in the first candidate set satisfy a first preset condition; wherein, the first preset condition is used to indicate that the two PDCCH candidates correspond to the same time Conditions that should be met when listening.
  • the first preset condition includes the following content: the control channel element CCE sets corresponding to the any two first PDCCH candidates are the same; the scrambling code sequences of the any two first PDCCH candidates are the same; the terminal The length of the downlink control information monitored by the device in the any two first PDCCH candidates is the same; the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI status; or, the any two first PDCCH candidates are from The identifiers of the control resource sets CORESET are the same, and the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI states.
  • the terminal device can determine, according to the first preset condition and in combination with the configuration information of the M PDCCH candidates, several PDCCH candidates that can be monitored only once among the M PDCCH candidates, and divide them into the same candidate set, thereby The overhead of terminal equipment monitoring PDCCH candidates is reduced, and the monitoring efficiency is improved.
  • the configuration information is used to indicate the PDCCH candidate sequences to which the M PDCCH candidates respectively belong, and any PDCCH candidate sequence includes K PDCCH candidates, where K is an integer greater than or equal to 2, and K is less than M;
  • the terminal device has the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to receive the same DCI; wherein, any two first PDCCH candidates in the first candidate set belong to two PDCCH candidate sequences, and the any two first PDCCH candidates satisfy a second preset condition; wherein, the second preset condition is used to indicate that the two PDCCH candidates belong to two PDCCH candidate sequences respectively and correspond to the same monitoring conditions to be met.
  • the network device when configuring a PDCCH candidate set for a terminal device, can configure a PDCCH candidate sequence, and transmit the same DCI repeatedly K times on K PDCCH candidates in the PDCCH candidate sequence, thereby obtaining diversity gain and/or combining gain .
  • the terminal device can judge whether some PDCCH candidates correspond to the same monitoring in combination with the correlation characteristics of the PDCCH candidate sequences to which the PDCCH candidates belong, so as to divide the M PDCCH candidates into N candidate sets.
  • the three preset conditions include the following: the control channel element CCE sets corresponding to the any two first PDCCH candidates are the same; the scrambling code sequences of the any two first PDCCH candidates are the same; The length of the downlink control information monitored in the first PDCCH candidates is the same; the ID of the control resource set CORESET from which the any two first PDCCH candidates come from is the same, and/or the transmission configuration of the any two first PDCCH candidates Indicates the same TCI status.
  • the terminal device when the terminal device performs the BD count one operation on the M PDCCH candidates, it determines certain parameters based on the second preset condition and the related configuration information of the PDCCH candidate sequences configured by the network device. Whether the PDCCH candidates correspond to the same monitoring, so that the M PDCCH candidates are divided into N candidate sets.
  • the identifiers of the CORESETs of the K PDCCH candidates included in any one PDCCH candidate sequence are the same; or, the identifiers of the CORESETs of at least two PDCCH candidates among the K PDCCH candidates included in any one PDCCH candidate sequence are different.
  • the CORESET identifiers of any two PDCCH candidates in any PDCCH candidate sequence may be the same or different, that is, it is not limited whether each PDCCH candidate in the configured PDCCH candidate sequence has the same CORESET identifier.
  • dividing the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates includes: determining the M PDCCH candidates respectively according to the configuration information The PDCCH candidate type to which it belongs; wherein, the PDCCH candidate type of any PDCCH candidate is used to indicate that the PDCCH candidate is at least one of a non-decoding candidate, an independent decoding candidate, and a joint decoding candidate; according to the M PDCCH candidates The PDCCH candidate types to which the candidates belong respectively, and the M PDCCH candidates are divided into the N candidate sets.
  • any two first PDCCH candidates in the first candidate set are independent decoding candidates; or, any two first PDCCH candidates in the first candidate set are joint decoding candidates.
  • an embodiment of the present application provides a monitoring method, which can be applied to a network device; wherein the network device has a function of using at least two physical downlink control channel PDCCH candidates to send the same downlink control information DCI.
  • the method may include: determining first information; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0; sending the the first information, so that the terminal device divides the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates, and performs the processing according to each candidate set in the N candidate sets.
  • One monitoring wherein, the first candidate set in the N candidate sets includes at least one first PDCCH candidate, the at least one first PDCCH candidate corresponds to the same monitoring, and the first candidate set is the N Any one of the candidate sets, N is an integer greater than 0, and N is less than or equal to M.
  • any two first PDCCH candidates in the first candidate set satisfy a first preset condition; wherein, the first preset condition is used to indicate that the two PDCCH candidates correspond to the same time Conditions that should be met when listening.
  • the first preset condition includes the following content: the control channel element CCE sets corresponding to the any two first PDCCH candidates are the same; the scrambling codes of the any two first PDCCH candidates are the same; The sequence is the same; the length of downlink control information monitored by the terminal device in the any two first PDCCH candidates is the same; the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI status; or, the any two The identifiers of the control resource set CORESET from which the first PDCCH candidates come from are the same, and the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI states.
  • the configuration information is used to indicate the PDCCH candidate sequences to which the M PDCCH candidates respectively belong, and any PDCCH candidate sequence includes K PDCCH candidates, where K is an integer greater than or equal to 2, and K is less than M;
  • the terminal device has the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to receive the same DCI; wherein, any two first PDCCH candidates in the first candidate set belong to two PDCCH candidate sequences, and the any two first PDCCH candidates satisfy a second preset condition; wherein, the second preset condition is used to indicate that the two PDCCH candidates belong to two PDCCH candidate sequences respectively and correspond to the same monitoring conditions to be met.
  • the transmission configuration of a PDCCH candidate indicates the same
  • the identifiers of the CORESETs of the K PDCCH candidates included in any PDCCH candidate sequence are the same; or, the CORESETs of at least two PDCCH candidates among the K PDCCH candidates included in any PDCCH candidate sequence The logo is different.
  • any PDCCH candidate has a PDCCH candidate type, and the PDCCH candidate type of any PDCCH candidate is used to indicate that the PDCCH candidate is a non-decoding candidate, an independent decoding candidate, or a joint decoding candidate. At least one; wherein, any two first PDCCH candidates in the first candidate set are independent decoding candidates; or, any two first PDCCH candidates in the first candidate set are joint decoding candidates candidate.
  • an embodiment of the present application provides a communication device, the communication device has a function of using at least two physical downlink control channel PDCCH candidates to receive the same downlink control information DCI; the communication device includes: a communication unit for Receive first information from a network device; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0; The configuration information of the M PDCCH candidates is divided into N candidate sets; wherein, the first candidate set in the N candidate sets includes at least one first PDCCH candidate, and the at least one The first PDCCH candidate corresponds to the same monitoring, the first candidate set is any one of the N candidate sets, N is an integer greater than 0, and N is less than or equal to M; Each candidate set in the N candidate sets is monitored once.
  • any two first PDCCH candidates in the first candidate set satisfy a first preset condition; wherein, the first preset condition is used to indicate that the two PDCCH candidates correspond to the same time Conditions that should be met when listening.
  • the first preset condition includes the following content: the control channel element CCE sets corresponding to the any two first PDCCH candidates are the same; the scrambling codes of the any two first PDCCH candidates are the same; The sequence is the same; the length of downlink control information monitored by the terminal device in the any two first PDCCH candidates is the same; the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI status; or, the any two The identifiers of the control resource set CORESET from which the first PDCCH candidates come from are the same, and the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI states.
  • the configuration information is used to indicate the PDCCH candidate sequences to which the M PDCCH candidates respectively belong, and any PDCCH candidate sequence includes K PDCCH candidates, where K is an integer greater than or equal to 2, and K is less than M;
  • the terminal device has the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to receive the same DCI; wherein, any two first PDCCH candidates in the first candidate set belong to two PDCCH candidate sequences, and the any two first PDCCH candidates satisfy a second preset condition; wherein, the second preset condition is used to indicate that the two PDCCH candidates belong to two PDCCH candidate sequences respectively and correspond to the same monitoring conditions to be met.
  • the transmission configuration of a PDCCH candidate indicates the same
  • the identifiers of the CORESETs of the K PDCCH candidates included in any PDCCH candidate sequence are the same; or, the CORESETs of at least two PDCCH candidates among the K PDCCH candidates included in any PDCCH candidate sequence The logo is different.
  • the processing unit is configured to: determine, according to the configuration information, the PDCCH candidate types to which the M PDCCH candidates belong respectively; wherein, the PDCCH candidate type of any PDCCH candidate is used to indicate the The PDCCH candidates are at least one of non-decoding candidates, independent decoding candidates, and joint decoding candidates; according to the PDCCH candidate types to which the M PDCCH candidates belong respectively, the M PDCCH candidates are divided into the N candidate set.
  • any two first PDCCH candidates in the first candidate set are independent decoding candidates; or, any two first PDCCH candidates in the first candidate set are Joint decoding candidates.
  • an embodiment of the present application provides a communication device, the communication device has a function of using at least two physical downlink control channel PDCCH candidates to send the same downlink control information DCI, the communication device includes: a processing unit for Determine first information; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0; a communication unit is used to send the the first information, so that the terminal device divides the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates, and performs the processing according to each candidate set in the N candidate sets.
  • the first candidate set in the N candidate sets includes at least one first PDCCH candidate, the at least one first PDCCH candidate corresponds to the same monitoring, and the first candidate set is the N Any one of the candidate sets, N is an integer greater than 0, and N is less than or equal to M.
  • the present application provides an apparatus.
  • the apparatus has the function of implementing the terminal equipment involved in the first aspect to the fourth aspect.
  • the apparatus includes a module or unit or means ( means), the functions or units or means (means) may be implemented by software, or by hardware, or by executing corresponding software by hardware.
  • the apparatus includes a processing unit, a transceiver unit, and the functions performed by the processing unit and the transceiver unit may correspond to the steps performed by the terminal equipment involved in the first to fourth aspects above.
  • the apparatus includes a processor, and may further include a transceiver, where the transceiver is used to send and receive signals, and the processor executes program instructions to accomplish any of the first to fourth aspects above.
  • the apparatus may further include one or more memories for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory stores necessary computer program instructions and/or data for realizing the functions of the terminal device related to the first aspect to the fourth aspect.
  • the processor can execute the computer program instructions stored in the memory to complete the method executed by the terminal-side device in any possible design or implementation manner of the first aspect to the fourth aspect.
  • the present application provides an apparatus.
  • the apparatus has the function of implementing the network equipment involved in the first aspect to the fourth aspect.
  • the apparatus includes a module or unit or means corresponding to the network side equipment performing the steps involved in the first aspect to the fourth aspect. (means).
  • the functions or units or means (means) may be implemented by software, or by hardware, or by executing corresponding software by hardware.
  • the apparatus includes a processing unit, a transceiving unit, and the functions performed by the processing unit and the transceiving unit may be performed with the network equipment involved in any possible designs or implementations of the first aspect to the fourth aspect. corresponding steps.
  • the communication apparatus includes a processor, and may also include a transceiver, where the transceiver is used for transmitting and receiving signals, and the processor executes program instructions to complete the first to fourth aspects above A method performed by a network device in any possible design or implementation.
  • the apparatus may further include one or more memories for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory stores necessary computer program instructions and/or data to implement the functions of the network device involved in any possible designs or implementation manners of the first aspect to the fourth aspect.
  • the processor can execute the computer program instructions stored in the memory to complete the method executed by the network device in any possible designs or implementations of the first aspect to the fourth aspect.
  • An embodiment of the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the computer is made to execute any of the above possible designs method in .
  • the embodiments of the present application provide a computer program product, which, when the computer reads and executes the computer program product, causes the computer to execute the method in any of the above possible designs.
  • An embodiment of the present application provides a chip for reading and executing a software program stored in a memory, so as to implement the method in any of the above possible designs.
  • the memory is connected to the chip, or the memory is built in the chip.
  • FIG. 1 is a schematic diagram of a search space set provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a communication system to which an embodiment of the application is applicable;
  • FIG. 3 is a schematic flowchart of a monitoring method provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the embodiments of the present application provide a monitoring method, device, and system, which help to provide a corresponding BD count one rule in a framework applying the PDCCH repetition technology, so as to reduce the problem of the complexity of monitoring PDCCH candidates.
  • the method and the device are based on the same technical concept. Since the principles of the method and the device for solving problems are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated.
  • DCI Downlink control information
  • 1 DCI corresponds to 1 PDCCH channel, or the content transmitted (carried) on 1 PDCCH is called DCI.
  • the downlink control information sent by the network device to the terminal device may include uplink and downlink resource scheduling information (including resource allocation information, hybrid automatic repeat request (HARQ) information, etc.), power control information, time slot format information, etc.
  • HARQ hybrid automatic repeat request
  • one PDCCH is composed of one or several control channel elements (control channel elements, CCEs), and the CCEs are interleaved within the system to perform interference randomization.
  • CCE control channel elements
  • the number of CCEs contained in one PDCCH is called the aggregation level of this PDCCH, and may also be called a CCE aggregation level, such as 1CCE, 2CCE, 4CCE, or 8CCE. Since different PDCCHs can use different CCE aggregation levels, that is, contain different numbers of REs, the aggregation levels also describe the number of physical resources occupied by the PDCCH channels. In the case of transmitting the same control information, the greater the number of CCEs corresponding to the PDCCH, the better the transmission performance. In this embodiment of the present application, the aggregation level may also be referred to as an aggregation level.
  • the network device can configure at least one aggregation level to form a PDCCH, so as to support different DCI formats and improve resource utilization under different channel bandwidths and channel environments.
  • PDCCH candidate (candidate) The number of PDCCH candidates under each aggregation level is specified by the standard protocol or configured by the network side. According to the aggregation level and the corresponding number of PDCCH candidates, the time-frequency resource location of each PDCCH candidate can be obtained. , that is, the time-frequency resource location where the PDCCH may appear.
  • the PDCCH candidate may also be referred to as a candidate PDCCH.
  • Control resource set a concept newly proposed in new radio (NR), which can be understood as a time-frequency resource set.
  • NR new radio
  • one CORESET may be configured as one or several consecutive OFDM symbols; in the frequency domain, one CORESET may be a group of continuous or non-consecutive frequency domain resources.
  • one CORESET can be configured through high-level signaling, and the configuration information of one CORESET may include, but is not limited to, the following characteristics: CORESET ID index, DMRS scrambling sequence initialization value, CORESET duration, CORESET frequency Domain resource bitmap, CCE-to-REG mapping type (including non-interleaved CCE-to-REG mapping and interleaved CCE-to-REG mapping), REG bundle size, REG bundle interleaver cyclic shift value, The QCL relationship with the antenna port, the indication of whether the TCI field in the DCI exists.
  • search space the set of PDCCH candidates corresponding to the same aggregation level
  • search space set the sum of the search spaces corresponding to multiple aggregation levels
  • the space is called common search space (CSS)
  • search space used to detect user-specific control information is called user-specific search space (UE-specific search space, USS).
  • one CORESET may include search spaces at different aggregation levels.
  • the blocks filled with diagonal stripes represent CCEs composing CSS
  • the blocks filled with vertical stripes represent CCEs composing USS.
  • Numbers 0-39 identify each CCE in sequence.
  • Blind detection a technology in which a terminal device performs blind detection by monitoring a group of PDCCH candidates to receive the corresponding DCI when it is uncertain which PDCCH candidate the network device uses to deliver the DCI.
  • DCI is divided into many formats, such as access identifier RA-RNTI, paging identifier P-RNTI, etc.
  • the PDCCH information of different users is distinguished by its corresponding C-RNTI information. That is, the CRC of the DCI is masked by the C-RNTI.
  • the network device can configure the terminal device with a set of PDCCH candidates that need to monitor DCI through high-level signaling (such as RRC signaling).
  • the configuration information of the network device knows which downlink control information it currently expects to receive and the search space sets corresponding to these downlink control information, so the terminal device must try to decode each PDCCH candidate in the PDCCH candidate set according to the configuration information, that is, the terminal device adopts The corresponding RNTI performs a CRC check on the information on the PDCCH candidate. If the CRC check is successful, the terminal device knows that the DCI information has been successfully resolved. The terminal device monitors multiple PDCCH candidates and tries to decode each PDCCH candidate to determine. Whether the behavior corresponding to the DCI is received is called blind detection.
  • BD count one operation The monitoring of at least two PDCCH candidates is performed only once, without the need for separate techniques.
  • a search space set consists of multiple PDCCH candidates, and different PDCCH candidates may overlap each other.
  • the network device can configure multiple search spaces for the terminal device at the same time to detect DCIs of different formats or DCIs carrying different control information. Spatial PDCCH candidates may overlap each other. For two PDCCH candidates that overlap each other, if they occupy the same time-frequency resources and the number of information bits of the DCI corresponding to the two PDCCH candidates is the same, the monitoring of the two PDCCH candidates can be performed only once, and no It needs to be done separately, that is, BD count one operation.
  • Version 38.214-f40 of the protocol specifies the calculation rule for the number of blind detections (commonly known as BD count one operation) or counts as one PDCCH candidate that needs to be monitored.
  • Two PDCCH candidates need to meet the following four conditions at the same time: the same CCE (That is, the same aggregation level and the same starting CCE position), the same scrambling sequence, the same CORESET, and the same DCI size.
  • Transmission configuration indicator state In the NR system, each PDCCH candidate has a corresponding TCI state. Through the TCI state information, each PDCCH candidate will be associated with a channel state information - reference Signal (channel state information reference signal, CSI-RS) or synchronization signal/physical broadcast channel block (synchronisation signal/physical broadcast channel block, SSB) association. Wherein, in a scenario where one PDCCH candidate is repeated multiple times, multiple repetitions of one PDCCH candidate may each correspond to one TCI state.
  • channel state information - reference Signal channel state information reference signal
  • SSB synchronization signal/physical broadcast channel block
  • association relationship includes the following four types:
  • 'QCL-TypeA' ⁇ Doppler shift (doppler shift), Doppler spread (doppler spread), average delay (average delay), delay spread (delay spread) ⁇ ;
  • QCL-TypeA, QCL-TypeB, and QCL-TypeC are the large-scale fading corresponding to the wireless channel, which are used to assist channel estimation.
  • the PDCCH is associated with a CSI-RS or SSB, it means that the large-scale fading experienced by the PDCCH is similar to that of the PDCCH.
  • the CSI-RS or SSB is the same, and the parameters related to large-scale fading can be estimated by using the CSI-RS or SSB, which is used for PDCCH channel estimation.
  • QCL-TypeD is beam-related information, indicating that the PDCCH and a certain CSI or SSB have the same receiving beam direction.
  • the network device will configure the TCI state for the PDCCH candidates through RRC parameters. Among them, if one TCI state is configured, it can be used directly; if two or more TCI states are configured, one of the TCI states can be activated by MAC signaling, and the activated TCI state is used; if no TCI state is configured, Then, the PDCCH candidate is associated with the SSB received by the terminal equipment when initially accessing.
  • PDCCH repetition the function of using at least two PDCCH candidates to transmit the same DCI.
  • the same DCI can be transmitted multiple times from different times, different frequencies or through different beams to obtain diversity gain and/or combining gain.
  • the same PDCCH can also be sent to a terminal device simultaneously through multiple sending sites, which is equivalent to sending the same DCI multiple times with different beams, and the multiple sending sites here can be called M-TRP.
  • a new radio (NR) system a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system ) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (long term evolution, LTE) system, advanced long term evolution (advanced long evolution) term evolution, LTE-A) system, universal mobile telecommunication system (UMTS), evolved long term evolution (evolved long term evolution, eLTE) system, future communication systems and other communication systems. make restrictions.
  • NR new radio
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • long term evolution long term evolution
  • LTE-A advanced long term evolution
  • UMTS universal mobile telecommunication system
  • eLTE evolved long term evolution
  • future communication systems and other communication systems future communication systems and other communication systems. make restrictions.
  • FIG. 2 shows a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application.
  • the communication system 200 includes network equipment (eg, network equipment 202 and/or 204) and terminal equipment 206.
  • the network equipment (202 and 204) may be configured with multiple antennas, and the terminal equipment 306 may also be configured with multiple antennas. an antenna.
  • the terminal device is a device with a wireless transceiver function or a chip that can be provided in the device.
  • the device with wireless transceiver function may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent or user device.
  • UE user equipment
  • the terminal device in the embodiments of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality) , AR) terminal, wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, Wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • the embodiments of the present application do not limit application scenarios.
  • the aforementioned device with wireless transceiver function and the chip that can be installed in the device are collectively referred to as terminal device.
  • the network device may be a radio access device under various standards, such as an evolved Node B (evolved Node B, eNB), a radio network controller (radio network controller, RNC), or a Node B (Node B) , NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU) ), access point (AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP) in wireless fidelity (wireless fidelity, WIFI) system, etc.
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • gNB can also be a gNB or a transmission point (TRP or TP) in a 5G (NR) system, one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or it can also be a gNB or transmission point Point network nodes, such as baseband units (BBUs), or DUs under a centralized-distributed (CU-DU) architecture.
  • BBUs baseband units
  • CU-DU centralized-distributed
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the network device and/or the terminal device is a device capable of transmitting the same DCI using at least two PDCCH candidates, or a device capable of transmitting K PDCCH candidates belonging to the same PDCCH candidate sequence.
  • K is an integer greater than or equal to 2.
  • FIG. 3 is a schematic flowchart of a monitoring method provided by an embodiment of the present application. Referring to Figure 3, the method may include the following steps:
  • S310 The network device sends the first information.
  • the network device may, for example, be configured through high-layer signaling to obtain the first information.
  • the first information may include configuration information of M PDCCH candidates, the M PDCCH candidates may be used to monitor the PDCCH, and M is an integer greater than 0.
  • the configuration information of any PDCCH candidate may include, for example, CORESET configuration information, search space set configuration information, etc., to indicate the time-frequency resource location where the PDCCH may appear.
  • the CORESET configuration information may be used to indicate the CORESET corresponding to the PDCCH candidate
  • the search space set configuration information may be used to indicate the search space set corresponding to the PDCCH candidate.
  • the M PDCCH candidates may come from the same search space set, or different search space sets of the same CORESET, or different search space sets from different CORESETs.
  • the aggregation levels of the PDCCH candidates may be the same or different, which is not limited in this application.
  • the configuration information of any PDCCH candidate may include the following information:
  • CORESET configuration information including: CORESET identification, CORESET frequency domain location, number of OFFM symbols occupied by CORESET, CCE-REG mapping information, precoding granularity, TCI information, scrambling code identification, etc.;
  • Search space set configuration information including: search space identifier, associated CORESET identifier, monitoring period, monitoring time domain location, PDCCH candidate aggregation level and corresponding number, DCI format, and the like.
  • the terminal device receives the first information from the network device, and divides the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates.
  • the M PDCCH candidates configured by the network device may come from different search space sets. They may overlap with each other. Therefore, in order to reduce the complexity and power consumption of monitoring the PDCCH candidates, the terminal device may determine the number of times of monitoring the PDCCH candidates before monitoring the PDCCH candidates.
  • each candidate set corresponds to the same monitoring time
  • the M PDCCH candidates are divided into N candidate sets, that is, to determine the monitoring times for monitoring on the M PDCCH candidates, where N is greater than An integer of 0, and N is less than or equal to M.
  • the first candidate set is used to represent any candidate set in the N candidate sets
  • the first PDCCH candidate is used to represent any PDCCH candidate in the first candidate set.
  • At least one first PDCCH candidate may be included, the at least one first PDCCH candidate corresponds to the same monitoring time, and the first PDCCH candidates belonging to different first candidate sets correspond to different monitoring times.
  • S330 The network device sends DCI.
  • the network device may send DCI to the terminal device through the PDCCH, and the DCI may include, for example, uplink and downlink resource scheduling information (including resource allocation information, HARQ information, etc.), power control information, time slot format information, etc.
  • uplink and downlink resource scheduling information including resource allocation information, HARQ information, etc.
  • power control information including resource allocation information, HARQ information, etc.
  • time slot format information etc.
  • the communication between the device and the terminal device is controlled and scheduled.
  • S340 The terminal device performs monitoring once according to each candidate set in the N candidate sets.
  • the terminal device monitors each of the N candidate sets once to detect the DCI from the network device. After the DCI descrambling and CRC verification are successful, the next step can be performed according to the content obtained from the detected DCI, such as sending uplink data, receiving downlink data, determining uplink power control actions, and determining dynamic TDD configuration. Wait. After that, the network device can perform corresponding actions according to the previously issued DCI, for example, receiving uplink data, sending downlink data, etc., which will not be repeated here.
  • relevant preset conditions may be preset, and when the terminal device has the function of using at least two PDCCH candidates to receive the same DCI, the M The PDCCH candidates are divided into N candidate sets, and each candidate set corresponds to one monitoring.
  • the terminal equipment has the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to transmit the same DCI, it can also combine the correlation characteristics of the PDCCH candidate sequences to which the PDCCH candidates belong to realize the division of PDCCH candidates. The relevant details of the specific implementation of the division scheme are described below with examples for different situations.
  • the terminal device has the function of using at least two PDCCH candidates to receive the same DCI.
  • the relevant preset condition may include a first preset condition, where the first preset condition is used to indicate a condition that should be satisfied when the two PDCCH candidates correspond to the same monitoring.
  • the first preset condition may include the following:
  • the control channel element CCE sets corresponding to the two PDCCH candidates are the same;
  • the scrambling sequences of the two PDCCH candidates are the same;
  • the length of downlink control information DCI monitored by the terminal equipment in the two PDCCH candidates is the same;
  • the transmission configuration indications of the two PDCCH candidates have the same TCI status; or, the identifiers of the control resource set CORESET from which the two PDCCH candidates come from are the same, and the transmission configuration indications of the two PDCCH candidates are the same TCI status.
  • the terminal device may traverse the M PDCCH candidates according to the configuration information of the M PDCCH candidates and the first preset condition, so as to compare any two PDCCH candidates among the M PDCCH candidates. Whether the two PDCCH candidates satisfy the first preset condition is used to determine whether the any two PDCCH candidates correspond to the same monitoring, that is, whether they belong to the same PDCCH candidate set.
  • m 1, 2, .
  • the mth PDCCH candidate is compared with the m+1th PDCCH candidate.
  • the terminal device determines that the m th PDCCH candidate and the m+1 th PDCCH candidate can be monitored only once, and divides them into the same candidate set.
  • the terminal device determines that the m th PDCCH candidate and the m+1 th PDCCH candidate need to be monitored twice, that is, the two belong to different candidate sets.
  • the terminal equipment continues to traverse in the same manner as above, to compare the mth PDCCH candidates with the m+2th, m+3th, ..., Mth PDCCH candidates one by one, until the Mth PDCCH candidates are determined Among the PDCCH candidates, the m-th PDCCH candidate belongs to other PDCCH candidates belonging to the same PDCCH candidate set.
  • any two first PDCCH candidates in any one of the first candidate sets satisfy the above-mentioned first preset condition. That is, the control channel element CCE sets corresponding to the any two first PDCCH candidates are the same; the scrambling code sequences of the any two first PDCCH candidates are the same; the terminal equipment is in the any two first PDCCH candidates
  • the monitored downlink control information DCI has the same length; the transmission configuration indication TCI states of the any two first PDCCH candidates are the same; or, the identifiers of the control resource set CORESET from which the any two first PDCCH candidates come from are the same, and the The transmission configuration indication TCI status of any two first PDCCH candidates is the same.
  • the terminal device may traverse each PDCCH candidate one by one, or may perform traversal for each PDCCH candidate simultaneously, which is not limited in the present application. It can be understood that, if there is no other PDCCH candidate that satisfies the above-mentioned first preset condition with the mth PDCCH candidate among the M PDCCH candidates, the mth PDCCH candidate itself forms a candidate set and corresponds to one monitoring.
  • the terminal device has the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to receive the same DCI.
  • the network device may configure at least one PDCCH candidate sequence.
  • the configuration information is used to indicate the PDCCH candidate sequences to which the M PDCCH candidates belong, and any PDCCH candidate sequence may include K PDCCH candidates, where K is an integer greater than or equal to 2, and K is less than M.
  • the configuration information of any PDCCH candidate can be used to indicate the PDCCH candidate sequence to which the PDCCH candidate belongs.
  • the relevant preset conditions may include second preset conditions and third preset conditions.
  • the second preset condition is used to indicate that the two PDCCH candidates belong to two PDCCH candidate sequences respectively, and correspond to the conditions that should be satisfied when the same monitoring is performed.
  • the third preset condition may, for example, include the following:
  • the control channel element CCE sets corresponding to the two PDCCH candidates are the same;
  • the scrambling sequences of the two PDCCH candidates are the same;
  • the length of downlink control information DCI monitored by the terminal device in the two PDCCH candidates is the same;
  • the identifiers of the control resource set CORESET from which the two PDCCH candidates come from are the same, and/or the transmission configuration indications of the two PDCCH candidates are the same as the TCI states.
  • the terminal device may traverse the M PDCCH candidates according to the configuration information of the M PDCCH candidates, and the second preset condition and the third preset condition, to traverse the M PDCCH candidates to any two PDCCH candidates among the M PDCCH candidates Comparing, according to whether the any two PDCCH candidates satisfy the second preset condition, it is judged whether the any two PDCCH candidates correspond to the same monitoring, that is, whether they belong to the same PDCCH candidate set.
  • the PDCCH candidate sequence may also be referred to as a PDCCH candidate pair.
  • the PDCCH candidate sequence X is represented as ⁇ PDCCH candidate X_1, PDCCH candidate X_2 ⁇ , for example
  • the PDCCH candidate sequence Y is represented as ⁇ PDCCH candidate Y_1, PDCCH candidate Y_2 ⁇ , for example.
  • the terminal device compares the two PDCCH candidates according to the respective configuration information of the PDCCH candidate X_1 and the PDCCH candidate Y_1 and the third preset condition.
  • the terminal device determines that the PDCCH candidate X_1 and the PDCCH candidate Y_1 may only perform monitoring once, and divide them into the same candidate set.
  • the terminal device determines that the PDCCH candidate X_1 and the PDCCH candidate Y_1 need to be monitored twice, that is, they belong to different candidate sets respectively.
  • the terminal equipment continues to traverse in the same manner as above to compare the PDCCH candidate X_1 with other PDCCH candidates, until it determines other PDCCH candidates belonging to the same PDCCH candidate set as the PDCCH candidate X_1 among the M PDCCH candidates.
  • the terminal device determines that the PDCCH candidate X_2 and the PDCCH candidate Y_2 can be monitored only once , and divide them into the same candidate set.
  • the terminal device determines that the PDCCH candidate X_2 and the PDCCH candidate Y_2 need to be monitored twice, that is, they belong to different candidate sets.
  • the terminal equipment continues to traverse in the same manner as above to compare the PDCCH candidate X_2 with other PDCCH candidates, until it determines other PDCCH candidates belonging to the same PDCCH candidate set as the PDCCH candidate X_2 among the M PDCCH candidates.
  • two PDCCH candidates at corresponding positions in different PDCCH candidate sequences may also be the same PDCCH candidate. In this case, it is not necessary to compare whether the two PDCCH candidates satisfy the third preset condition.
  • PDCCH candidate X_1 and PDCCH candidate Y_1 correspond to the same PDCCH candidate, and PDCCH X_2 and PDCCH candidate Y_2 correspond to different PDCCH candidates.
  • the PDCCH candidate X_1 and the PDCCH candidate Y_1 must satisfy the above-mentioned third preset condition.
  • PDCCH candidate X_2 and PDCCH candidate Y_2 correspond to the same PDCCH candidate
  • PDCCH X_1 and PDCCH candidate Y_1 correspond to different PDCCH candidates.
  • the PDCCH candidate X_2 and the PDCCH candidate Y_2 must satisfy the above-mentioned third preset condition.
  • the PDCCH candidate sequence X includes 2 PDCCH candidates and PDCCH candidate sequences. If Y includes 3 PDCCH candidates, the PDCCH candidates respectively included in the two PDCCH candidate sequences are not compared. That is, only when any two PDCCH candidates belong to two PDCCH candidate sequences respectively, and the number of PDCCH candidates included in the two PDCCH candidate sequences is the same, the i-th PDCCH candidate included in each of the two PDCCH candidate sequences PDCCH candidates are compared.
  • K 2 as an example, and is not intended to be any limitation to perform the BD count one operation on the PDCCH candidates belonging to the two PDCCH candidate sequences respectively.
  • K>2 if any PDCCH candidate in any two PDCCH candidates to be compared is the jth PDCCH candidate in the PDCCH candidate sequence to which the PDCCH candidate belongs, then the two PDCCH candidate sequences included in each of the two PDCCH candidate sequences.
  • the identifiers of each PDCCH candidate CORESET may be the same or different, and the identifiers of the CORESETs of the PDCCH candidates at corresponding positions in different PDCCH candidate sequences must be same.
  • the CORESET IDs of PDCCH candidate X_1 and PDCCH candidate X_2 can be the same or different, and the CORESET IDs of PDCCH candidate X_1 and PDCCH candidate Y_1 must be the same.
  • the terminal device may have the function of using at least two PDCCH candidates to receive the same DCI, and the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to receive the same DCI.
  • Any PDCCH candidate may have a PDCCH candidate type, and the PDCCH candidate type is the received decoding type of the PDCCH candidate, and may include at least one of a non-decoding candidate, an independent decoding candidate, and a joint decoding candidate.
  • a reception strategy for PDCCH candidates may be agreed between the network device and the terminal device.
  • the terminal device can directly receive and independently decode the corresponding PDCCH candidates when receiving.
  • the M PDCCH candidates are all independent decoding candidates
  • each PDCCH candidate is regarded as an independent (that is, unrelated) individual, and the M PDCCH candidates are divided by referring to the above description in conjunction with Example 1. is a set of N PDCCH candidates.
  • a single PDCCH candidate can be decoded independently, or multiple repeatedly transmitted PDCCH candidates can be jointly decoded (ie, combined first and then decoded).
  • there may be multiple receiving strategies for each PDCCH candidate included in the PDCCH candidate sequence which may include: no decoding for a single PDCCH candidate, or for a single PDCCH candidate.
  • a single PDCCH candidate can be decoded independently, or joint decoding can be performed for at least two PDCCH candidates (ie, the combined information of multiple PDCCH candidates to be repeatedly transmitted is decoded).
  • the receiving scheme may include the following:
  • Reception scheme 1 Receive and decode only the combined information of PDCCH candidate 1 and PDCCH candidate 2. At this time, no decoding is performed for PDCCH candidate 1, that is, after PDCCH candidate 1 is received, no decoding is performed, but after PDCCH candidate 2 is received, the combined information of PDCCH candidate 1 and PDCCH candidate 2 is received and decoded. Correct.
  • Reception scheme 2 Perform reception and decoding for PDCCH candidate 1, and perform reception and decoding for PDCCH candidate 2, as long as one of the two is correctly decoded.
  • Reception scheme 3 Perform receiving and decoding on PDCCH candidate 1, and perform receiving and decoding on the combined information of PDCCH candidate 1 and PDCCH candidate 2, as long as one of the two is correctly decoded.
  • receiving and decoding is performed for PDCCH candidate 1, receiving and decoding is performed for PDCCH candidate 2, and receiving and decoding is performed for the combined information of PDCCH candidate 1 and PDCCH candidate 2, as long as one of the three is correctly decoded.
  • any one of the M PDCCH candidates may be at least one of a non-decoding candidate, an independent decoding candidate, and a joint decoding candidate, you can refer to the previous description in conjunction with Example 2, and use the M
  • the PDCCH candidates are divided into N PDCCH candidate sets.
  • the terminal device may determine the PDCCH candidate types to which the M PDCCH candidates belong respectively according to the configuration information of the M PDCCH candidates.
  • the PDCCH candidate type of any PDCCH candidate is used to indicate that the PDCCH candidate is at least one of a non-decoding candidate, an independent decoding candidate, and a joint decoding candidate. Then, the terminal device divides the M PDCCH candidates into the N candidate sets according to the PDCCH candidate types to which the M PDCCH candidates belong respectively.
  • the terminal device may first determine whether the PDCCH candidate is a single PDCCH candidate or a PDCCH candidate in the PDCCH candidate sequence according to the configuration information of the PDCCH candidate.
  • the PDCCH candidate is a single PDCCH candidate
  • the PDCCH candidate type to which it belongs is an independent decoding candidate.
  • the PDCCH candidate type of the PDCCH candidate may be determined in combination with the reception strategy corresponding to the PDCCH candidate sequence.
  • Reception scheme 1 Receive and decode only the combined information of PDCCH candidate 1 and PDCCH candidate 2. That is, after the PDCCH candidate 1 is received, the decoding is not performed, and the combined information of the PDCCH candidate 1 and the PDCCH candidate 2 is received and decoded after the PDCCH candidate 2 is received, and the decoding is correct.
  • PDCCH candidate 1 is a non-decoding candidate
  • PDCCH candidate 2 is a joint decoding candidate
  • Reception scheme 2 Perform reception and decoding for PDCCH candidate 1, and perform reception and decoding for PDCCH candidate 2, as long as one of the two is correctly decoded.
  • both PDCCH candidate 1 and PDCCH candidate 2 are independent decoding candidates.
  • Reception scheme 3 Perform reception and decoding for PDCCH candidate 1, and perform reception and decoding for the combined information of PDCCH candidate 1 and PDCCH candidate 2, as long as one of the two is correctly decoded.
  • PDCCH candidate 1 is an independent decoding candidate
  • PDCCH candidate 2 is a joint decoding candidate
  • Reception scheme 4 Perform reception and decoding for PDCCH candidate 1, perform reception and decoding for PDCCH candidate 2, and perform reception and decoding for the combined information of PDCCH candidate 1 and PDCCH candidate 2, as long as one of the three is correctly decoded.
  • PDCCH candidate 1 is an independent decoding candidate
  • PDCCH candidate 2 is both an independent decoding candidate and a joint decoding candidate (in this case, PDCCH candidate 2 needs to participate in the BD count one operation as two PDCCH candidates).
  • the reception strategy of the terminal device for the sequence of ⁇ PDCCH candidate 1, PDCCH candidate 2, PDCCH candidate 3 ⁇ repeated three times, and the way of judging the PDCCH candidate type of the corresponding PDCCH candidate in the sequence may be: As follows:
  • Reception scheme 1 Receive and decode only the combined information of PDCCH candidate 1, PDCCH candidate 2 and PDCCH candidate 3. That is, after receiving PDCCH candidate 1 and PDCCH candidate 2, no decoding is performed, and after receiving PDCCH candidate 3, the combined information of PDCCH candidate 1, PDCCH candidate 2 and PDCCH candidate 3 is received and decoded, and the decoding is correct. Can.
  • PDCCH candidate 1 and PDCCH candidate 2 are non-decoding candidates
  • PDCCH candidate 3 is a joint decoding candidate
  • Reception scheme 2 Perform reception and decoding for PDCCH candidate 1, perform reception and decoding for PDCCH candidate 2, and perform reception and decoding for PDCCH candidate 3, as long as one of the three is correctly decoded.
  • PDCCH candidate 1, PDCCH candidate 2, and PDCCH candidate 3 are all independent decoding candidates.
  • Reception scheme 3 receive and decode PDCCH candidate 1, receive and decode PDCCH candidate 2, receive and decode PDCCH candidate 3, receive and decode the combined information of PDCCH candidate 1, PDCCH candidate 2, and PDCCH candidate 3 , as long as one of the four is decoded correctly.
  • PDCCH candidate 1/PDCCH candidate 2/PDCCH candidate 3 are both independent decoding candidates and joint decoding candidates (in this case, PDCCH candidate 1/PDCCH candidate 2/PDCCH candidate 3 need to be used as two PDCCH candidates to Participate in BD count one operation).
  • Reception scheme 4 receive and decode PDCCH candidate 1, receive and decode PDCCH candidate 2, receive and decode the combined information of PDCCH candidate 1 and PDCCH candidate 2, receive and decode PDCCH candidate 3, and perform receive and decode for PDCCH candidate 3. 1. The combined information of PDCCH candidate 2 and PDCCH candidate 3 is received and decoded, as long as one of the five is correctly decoded.
  • PDCCH candidate 1/PDCCH candidate 2/PDCCH candidate 3 are both independent decoding candidates and joint decoding candidates (in this case, PDCCH candidate 1/PDCCH candidate 2/PDCCH candidate 3 need to be used as two PDCCH candidates to Participate in BD count one operation).
  • Reception scheme 5 Receiving and decoding for PDCCH candidate 1, receiving and decoding for the combined information of PDCCH candidate 1 and PDCCH candidate 2, receiving and decoding for PDCCH candidate 3, performing reception and decoding for PDCCH candidate 1, PDCCH candidate 2 and PDCCH candidate 3
  • the combined information is received and decoded, as long as one of the three is decoded correctly.
  • PDCCH candidate 1 is both an independent decoding candidate and a joint decoding candidate (in this case, PDCCH candidate 1 needs to participate in the BD count one operation as two PDCCH candidates), PDCCH candidate 2 and PDCCH candidate 3 are both Joint decoding candidates.
  • the corresponding reception strategy may include more reception schemes, and the K included in the PDCCH candidate sequence may still be determined in combination with the reception strategy of the corresponding PDCCH candidate sequence
  • the PDCCH candidate types of the PDCCH candidates will not be repeated here.
  • any one of the M PDCCH candidates can be determined.
  • the two PDCCH candidates are compared to divide the M PDCCH candidates into N candidate sets.
  • any two PDCCH candidates in the M PDCCH candidates are independent decoding candidates and satisfy the first preset condition, then the any two PDCCH candidates correspond to the same monitoring, then Divide both into the same candidate set. If any two PDCCH candidates among the M PDCCH candidates, one is for independent decoding and the other is for joint decoding, then the any two PDCCH candidates correspond to different times of monitoring, and the two are divided into different PDCCH candidate set. If any two PDCCH candidates among the M PDCCH candidates are joint decoding candidates and satisfy the second preset condition, and the any two PDCCH candidates correspond to the same monitoring, they are divided into the same candidate set.
  • any two first PDCCH candidates in the first candidate set are independent decoding candidates; or, any two first PDCCH candidates in the first candidate set are joint decoding candidates candidate.
  • two PDCCH candidates at corresponding positions in different PDCCH candidate sequences may also be the same PDCCH candidate. In this case, it is not necessary to compare whether the two PDCCH candidates meet the third preset condition.
  • the communication apparatus 400 includes: a communication unit 401 and processing unit 402.
  • the communication apparatus 400 when the communication apparatus 400 is used to implement the actions of the terminal equipment, the communication apparatus has the function of receiving the same downlink control information DCI by using at least two physical downlink control channel PDCCH candidates.
  • the communication unit 401 is configured to receive first information from a network device; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0
  • the processing unit 402 is configured to divide the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates; wherein, the first candidate set in the N candidate sets includes at least one The first PDCCH candidate, the at least one first PDCCH candidate corresponds to the same monitoring, the first candidate set is any one of the N candidate sets, N is an integer greater than 0, and N is less than or equal to M;
  • the communication unit is further configured to perform a monitoring according to each candidate set in the N candidate sets.
  • any two first PDCCH candidates in the first candidate set satisfy a first preset condition; wherein, the first preset condition is used to indicate that the two PDCCH candidates correspond to the same time Conditions that should be met when listening.
  • the first preset condition includes the following content: the control channel element CCE sets corresponding to the any two first PDCCH candidates are the same; the scrambling codes of the any two first PDCCH candidates are the same; The sequence is the same; the length of downlink control information monitored by the terminal device in the any two first PDCCH candidates is the same; the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI status; or, the any two The identifiers of the control resource set CORESET from which the first PDCCH candidates come from are the same, and the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI states.
  • the configuration information is used to indicate the PDCCH candidate sequences to which the M PDCCH candidates respectively belong, and any PDCCH candidate sequence includes K PDCCH candidates, where K is an integer greater than or equal to 2, and K is less than M;
  • the terminal device has the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to receive the same DCI; wherein, any two first PDCCH candidates in the first candidate set belong to two PDCCH candidate sequences, and the any two first PDCCH candidates satisfy a second preset condition; wherein, the second preset condition is used to indicate that the two PDCCH candidates belong to two PDCCH candidate sequences respectively and correspond to the same monitoring conditions to be met.
  • the transmission configuration of a PDCCH candidate indicates the same
  • the identifiers of the CORESETs of the K PDCCH candidates included in any PDCCH candidate sequence are the same; or, the CORESETs of at least two PDCCH candidates among the K PDCCH candidates included in any PDCCH candidate sequence The logo is different.
  • the processing unit is configured to: determine, according to the configuration information, the PDCCH candidate types to which the M PDCCH candidates belong respectively; wherein, the PDCCH candidate type of any PDCCH candidate is used to indicate the The PDCCH candidates are at least one of non-decoding candidates, independent decoding candidates, and joint decoding candidates; according to the PDCCH candidate types to which the M PDCCH candidates belong respectively, the M PDCCH candidates are divided into the N candidate set.
  • any two first PDCCH candidates in the first candidate set are independent decoding candidates; or, any two first PDCCH candidates in the first candidate set are Joint decoding candidates.
  • the communication apparatus 400 when the communication apparatus 400 is used to implement the action of the network device, the communication apparatus has the function of using at least two physical downlink control channel PDCCH candidates to send the same downlink control information DCI.
  • the processing unit 402 is configured to determine first information; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0; the communication unit 401 is used to send the first information to the terminal device, so that the terminal device divides the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates, and according to the N PDCCH candidates Each candidate set in the candidate set is monitored once; wherein, the first candidate set of the N candidate sets includes at least one first PDCCH candidate, and the at least one first PDCCH candidate corresponds to the same monitoring time, and the The first candidate set is any one of the N candidate sets, where N is an integer greater than 0, and N is less than or equal to M.
  • FIG. 5 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus shown in FIG. 5 may be a hardware circuit implementation of the communication apparatus shown in FIG. 4 .
  • the communication apparatus can be applied to the flowchart shown in FIG. 4 to perform the functions of the network device in the foregoing method embodiments.
  • FIG. 5 only shows the main components of the communication device.
  • the communication device may be a network device, or may be a device in a network device, such as a chip or a chip system, wherein the chip system includes at least one chip, and the chip system may also include other circuit structures and/or discrete devices.
  • the communication device 500 includes a processor 501 , a memory 502 , a transceiver 503 , an antenna 504 , and the like.
  • the processor 501 is configured to determine first information; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0; the transceiver 503, using sending the first information to the terminal device, so that the terminal device divides the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates, and according to the N candidate sets One monitoring is performed for each candidate set in the N candidate sets; wherein, the first candidate set in the N candidate sets includes at least one first PDCCH candidate, the at least one first PDCCH candidate corresponds to the same monitoring, the first The candidate set is any one of the N candidate sets, where N is an integer greater than 0, and N is less than or equal to M.
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication apparatus shown in FIG. 6 may be a hardware circuit implementation of the communication apparatus shown in FIG. 4 .
  • the communication apparatus can be applied to the flowchart shown in FIG. 4 to perform the functions of the terminal-side device in the foregoing method embodiments.
  • FIG. 6 only shows the main components of the communication device.
  • the communication device may be a terminal device, or may be a device in a terminal device, such as a chip or a chip system, wherein the chip system includes at least one chip, and the chip system may also include other circuit structures and/or discrete devices.
  • taking the communication apparatus as a network device as an example, as shown in FIG.
  • the processor 601 is mainly used to process the communication protocol and communication data, control the entire wireless communication device, execute software programs, and process data of the software programs, for example, to support the wireless communication device to perform the methods described in the above method embodiments. action etc.
  • the memory 602 is mainly used to store software programs and data.
  • the transceiver 603 is mainly used for converting the baseband signal to the radio frequency signal and processing the radio frequency signal.
  • the antenna 604 is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves.
  • the input and output device 605, such as a touch screen, a display screen, a keyboard, etc., is mainly used for receiving data input by the user and outputting data to the user.
  • a transceiver 603, configured to receive first information from a network device; the first information includes configuration information of M PDCCH candidates, the M PDCCH candidates are used to monitor the PDCCH, and M is an integer greater than 0; processing The device 601 is configured to divide the M PDCCH candidates into N candidate sets according to the configuration information of the M PDCCH candidates; wherein, the first candidate set in the N candidate sets includes at least one first candidate set PDCCH candidate, the at least one first PDCCH candidate corresponds to the same monitoring, the first candidate set is any one of the N candidate sets, N is an integer greater than 0, and N is less than or equal to M; the The communication unit is further configured to perform a monitoring according to each candidate set in the N candidate sets.
  • any two first PDCCH candidates in the first candidate set satisfy a first preset condition; wherein, the first preset condition is used to indicate that the two PDCCH candidates correspond to the same time Conditions that should be met when listening.
  • the first preset condition includes the following content: the control channel element CCE sets corresponding to the any two first PDCCH candidates are the same; the scrambling codes of the any two first PDCCH candidates are the same; The sequence is the same; the length of downlink control information monitored by the terminal device in the any two first PDCCH candidates is the same; the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI status; or, the any two The identifiers of the control resource set CORESET from which the first PDCCH candidates come from are the same, and the transmission configuration indications of the any two first PDCCH candidates are the same as the TCI states.
  • the configuration information is used to indicate the PDCCH candidate sequences to which the M PDCCH candidates respectively belong, and any PDCCH candidate sequence includes K PDCCH candidates, where K is an integer greater than or equal to 2, and K is less than M;
  • the terminal device has the function of using K PDCCH candidates belonging to the same PDCCH candidate sequence to receive the same DCI; wherein, any two first PDCCH candidates in the first candidate set belong to two PDCCH candidate sequences, and the any two first PDCCH candidates satisfy a second preset condition; wherein, the second preset condition is used to indicate that the two PDCCH candidates belong to two PDCCH candidate sequences respectively and correspond to the same monitoring conditions to be met.
  • the transmission configuration of a PDCCH candidate indicates the same
  • the identifiers of the CORESETs of the K PDCCH candidates included in any PDCCH candidate sequence are the same; or, the CORESETs of at least two PDCCH candidates among the K PDCCH candidates included in any PDCCH candidate sequence The logo is different.
  • the processing unit is configured to: determine, according to the configuration information, the PDCCH candidate types to which the M PDCCH candidates belong respectively; wherein, the PDCCH candidate type of any PDCCH candidate is used to indicate the The PDCCH candidates are at least one of non-decoding candidates, independent decoding candidates, and joint decoding candidates; according to the PDCCH candidate types to which the M PDCCH candidates belong respectively, the M PDCCH candidates are divided into the N candidate set.
  • any two first PDCCH candidates in the first candidate set are independent decoding candidates; or, any two first PDCCH candidates in the first candidate set are Joint decoding candidates.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

Abstract

一种监听方法及设备, 涉及通信技术领域。终端设备能够采用至少两个PDCCH候选接收同一个DCI, 其接收M个PDCCH候选的配置信息, M个PDCCH候选用于监听PDCCH, M为大于0的整数; 根据M个PDCCH候选的配置信息, 将M个PDCCH候选划分为N个候选集合; N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选, 至少一个第一PDCCH候选对应同一次监听, 第一候选集合为N个候选集合中的任一个, N为大于0的整数, 且N小于或等于M; 根据N个候选集合中的每个候选集合进行一次监听。该方法有助于在应用PDCCH重复技术的架构中提供对应的监听规则, 以降低监听PDCCH的复杂度的问题。

Description

一种监听方法及设备 技术领域
本申请涉及通信技术领域，特别涉及一种监听方法及设备。
背景技术
在通信系统中，网络设备可以通过物理下行控制信道(physical downlink control channel，PDCCH)向终端设备发送下行控制信息(downlink control information，DCI)，DCI中可以包括用于调度终端设备在物理上行共享信道(physical uplink shared channel，PUSCH)中传输数据的上行调度信息，或者包括用于调度终端设备接收物理下行共享信道(physical downlink shared channel，PDSCH)的下行调度信息等信息。PDCCH在多个控制信道元素(control channel element，CCE)中传输，PDCCH占用的CCE的个数可以称为PDCCH的聚合等级(aggregation level，AL)，例如，PDCCH占用4个CCE，那么该PDCCH的聚合等级为4。
网络设备可以通过高层信令预先给终端设备配置每个DCI对应的PDCCH候选(candidate)集合，但不通知终端设备会在哪个或哪些PDCCH候选上发送DCI，但是终端设备根据网络设备发送的配置信息可以确定当前期待接收的DCI，所以终端设备可以根据配置信息对当前期待接收的DCI所对应的PDCCH候选集合中的PDCCH候选进行监听，通常把同一个AL对应的PDCCH候选的集合称为搜索空间(search space)，而多个AL对应的搜索空间的总和称为搜索空间集合(search space set)。
由于监听的复杂度较大且会消耗大量的功耗，终端设备在监听PDCCH候选之前，要确定监听PDCCH候选的监听次数。由于组成不同搜索空间的PDCCH候选可能会互相重叠，现有协议中规定了一次盲检测(blind detection，BD)次数的计算规则(俗称做BD count one操作)或算作1个需要监听的PDCCH候选，即对于互相重叠的至少两个PDCCH候选，如果它们占用的时频资源完全相同、且对应于这两个PDCCH候选的DCI的信息比特数相同，则对于这至少两个PDCCH候选的监听可以只进行一次，不需要分别进行。
现有技术中，为了提高PDCCH的接收性能，网络设备可以采用PDCCH重复技术发送同一个DCI，例如，可以从不同时间、不同频率或者通过不同波束来多次发送同一个DCI，从而获取分集增益和/或合并增益。然而，上述BD count one操作对应的条件是在无PDCCH重复的架构下规定的，针对PDCCH重复的架构，目前尚无对应的BD count one规则。
发明内容
本申请提供一种监听方法及设备，有助于在应用PDCCH重复技术的架构中提供对应的BD count one规则，以降低监听PDCCH候选的复杂度的问题。
第一方面，本申请实施例提供一种监听方法，该方法可以应用于终端设备；其中，所述终端设备具备采用至少两个物理下行控制信道PDCCH候选接收同一个下行控制信息DCI的功能。
该方法可以包括：接收来自网络设备的第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；根据 所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M；根据所述N个候选集合中的每个候选集合进行一次监听。
通过该方案，在应用PDCCH重复技术的架构中，终端设备可以根据来自网络设备的关于M个PDCCH候选的配置信息将该M个PDCCH候选进行划分，将对应于同一次监听的至少一个PDCCH候选划分至同一个PDCCH候选集合，并根据每个PDCCH候选集合进行一次监听，从而降低终端设备监听PDCCH的开销，提高监听效率。
需要说明的是，本申请实施例中，“监听”是指监听PDCCH候选。由于网络设备只给终端设备配置每个DCI对应的PDCCH候选集合，但不通知终端设备会在哪个或哪些PDCCH候选上发送DCI，并不是每个PDCCH候选上都会承载DCI，终端设备需要在每个PDCCH候选上尝试译码，以接收对应的DCI，即监听PDCCH候选。BD count one操作即确定至少两个PDCCH候选对应同一次监听的操作，或者说，将至少两个PDCCH候选算作1个需要监听的PDCCH候选的操作，N也可以称为监听M个PDCCH候选的最大次数。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选满足第一预设条件；其中，所述第一预设条件用于指示两个PDCCH候选对应同一次监听时应满足的条件。示例的，所述第一预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
通过该方案，终端设备可以根据第一预设条件，并结合所述M个PDCCH候选的配置信息，确定M个PDCCH候选中能够只进行一次监听的若干个PDCCH候选并划分至同一候选集合，从而降低终端设备监听PDCCH候选的开销，提高监听效率。
在一种可能的实现方式中，所述配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中包括K个PDCCH候选，K为大于或等于2的整数、且K小于M；所述终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能；其中，所述第一候选集合中的任意两个第一PDCCH候选分别属于两个PDCCH候选序列、且所述任意两个第一PDCCH候选满足第二预设条件；其中，所述第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
通过该方案，网络设备在为终端设备配置PDCCH候选集合时，可以配置PDCCH候选序列，并通过PDCCH候选序列中的K个PDCCH候选上K次重复发送同一DCI，从而获取分集增益和/或合并增益。相应地，终端设备则可以结合PDCCH候选所属PDCCH候选序列的相关特性，来判断某些PDCCH候选是否对应同一次监听，从而将M个PDCCH候选划分为N个候选集合。
示例的，所述第二预设条件包括：所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1 ＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
通过该方案，在应用PDCCH重复的架构中，终端设备在对M个PDCCH候选进行BD count one操作时，基于第二预设条件以及网络设备配置的PDCCH候选序列的相关配置信息，来判断某些PDCCH候选是否对应同一次监听，从而将M个PDCCH候选划分为N个候选集合。
示例的，任一个PDCCH候选序列中包括的K个PDCCH候选的CORESET的标识相同；或者，任一个PDCCH候选序列中包括的K个PDCCH候选中至少两个PDCCH候选的CORESET的标识不同。
通过该方案，任一个PDCCH候选序列中的任意两个PDCCH候选的CORESET的标识可以相同也可以不同，即并不限定所配置的PDCCH候选序列中的各个PDCCH候选是否具有相同CORESET的标识。
在一种可能的实现方式中，根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，包括：根据所述配置信息，确定所述M个PDCCH候选分别所属的PDCCH候选类型；其中，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种；根据所述M个PDCCH候选分别所属的PDCCH候选类型，将所述M个PDCCH候选划分为所述N个候选集合。
示例的，所述第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，所述第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
通过该方案，通过确定任一个PDCCH候选的PDCCH候选类型，并结合PDCCH候选类型实现对M个PDCCH候选的划分，有助于在应用PDCCH重复的架构中，将具有相同PDCCH候选类型的PDCCH候选划分至同一PDCCH候选集合。
第二方面，本申请实施例提供一种监听方法，该方法可以应用于网络设备；其中，所述网络设备具备采用至少两个物理下行控制信道PDCCH候选发送同一个下行控制信息DCI的功能。
该方法可以包括：确定第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；向终端设备发送所述第一信息，以使得所述终端设备根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，并根据所述N个候选集合中的每个候选集合进行一次监听；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选满足第一预设条件；其中，所述第一预设条件用于指示两个PDCCH候选对应同一次监听时应满 足的条件。
在一种可能的实现方式中，所述第一预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，所述配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中包括K个PDCCH候选，K为大于或等于2的整数、且K小于M；所述终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能；其中，所述第一候选集合中的任意两个第一PDCCH候选分别属于两个PDCCH候选序列、且所述任意两个第一PDCCH候选满足第二预设条件；其中，所述第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
在一种可能的实现方式中，所述第二预设条件包括：所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，任一个PDCCH候选序列中包括的K个PDCCH候选的CORESET的标识相同；或者，任一个PDCCH候选序列中包括的K个PDCCH候选中至少两个PDCCH候选的CORESET的标识不同。
在一种可能的实现方式中，任一个PDCCH候选具有PDCCH候选类型，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种；其中，所述第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，所述第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
第三方面，本申请实施例提供一种通信装置，所述通信装置具备采用至少两个物理下行控制信道PDCCH候选接收同一个下行控制信息DCI的功能；所述通信装置包括：通信单元，用于接收来自网络设备的第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；处理单元，用于根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M；所述通信单元还用于根据所述N个候选集合中的每个候选集合进行一次监听。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选满足第 一预设条件；其中，所述第一预设条件用于指示两个PDCCH候选对应同一次监听时应满足的条件。
在一种可能的实现方式中，所述第一预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，所述配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中包括K个PDCCH候选，K为大于或等于2的整数、且K小于M；所述终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能；其中，所述第一候选集合中的任意两个第一PDCCH候选分别属于两个PDCCH候选序列、且所述任意两个第一PDCCH候选满足第二预设条件；其中，所述第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
在一种可能的实现方式中，所述第二预设条件包括：所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，任一个PDCCH候选序列中包括的K个PDCCH候选的CORESET的标识相同；或者，任一个PDCCH候选序列中包括的K个PDCCH候选中至少两个PDCCH候选的CORESET的标识不同。
在一种可能的实现方式中，所述处理单元用于：根据所述配置信息，确定所述M个PDCCH候选分别所属的PDCCH候选类型；其中，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种；根据所述M个PDCCH候选分别所属的PDCCH候选类型，将所述M个PDCCH候选划分为所述N个候选集合。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，所述第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
第四方面，本申请实施例提供一种通信装置，所述通信装置具备采用至少两个物理下行控制信道PDCCH候选发送同一个下行控制信息DCI的功能，所述通信装置包括：处理单元，用于确定第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；通信单元，用于向终端设备发送所述第一信息，以使得所述终端设备根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，并根据所述N个候选集合中的每个候选集合进行一 次监听；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M。
第五方面，本申请提供一种装置。所述装置具备实现上述第一方面至第四方面涉及的终端设备的功能，比如，所述装置包括所述终端设备执行上述第一方面至第四方面涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述装置包括处理单元、收发单元，处理单元、收发单元执行的功能可以和上述第一方面至第四方面涉及的终端设备执行的步骤相对应。
在一种可能的设计中，所述装置包括处理器，还可以包括收发器，所述收发器用于收发信号，所述处理器执行程序指令，以完成上述第一方面至第四方面中任意可能的设计或实现方式中终端设备执行的方法。
其中，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置，本申请并不限定。
一种可能的方式，存储器保存实现上述第一方面至第四方面涉及的终端设备的功能的必要计算机程序指令和/或数据。所述处理器可执行所述存储器存储的计算机程序指令，完成上述第一方面至第四方面任意可能的设计或实现方式中终端侧设备执行的方法。
第六方面，本申请提供一种装置。所述装置具备实现上述第一方面至第四方面涉及的网络设备的功能，比如，所述装置包括所述网络侧设备执行上述第一方面至第四方面涉及步骤所对应的模块或单元或手段(means)。所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述装置包括处理单元、收发单元，处理单元、收发单元执行的功能可以和上述第一方面至第四方面中任意可能的设计或实现方式中涉及的网络设备执行的步骤相对应。
在另一种可能的设计中，所述通信装置包括处理器，还可以包括收发器，所述收发器用于收发信号，所述处理器执行程序指令，以完成上述第一方面至第四方面中任意可能的设计或实现方式中网络设备执行的方法。
其中，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置，本申请并不限定。
一种可能的方式，存储器保存实现上述第一方面至第四方面中任意可能的设计或实现方式中涉及的网络设备的功能的必要计算机程序指令和/或数据。所述处理器可执行所述存储器存储的计算机程序指令，完成上述第一方面至第四方面中任意可能的设计或实现方式中网络设备执行的方法。
本申请实施例提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述任一种可能的设计中的方法。
本申请实施例提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述任一种可能的设计中的方法。
本申请实施例提供一种芯片，用于读取并执行存储器中存储的软件程序，以实现上述任一种可能的设计中的方法。其中，所述存储器与所述芯片相连，或所述存储器内置于所 述芯片中。
附图说明
图1为本申请实施例提供的搜索空间集合的示意图；
图2为本申请实施例适用的通信系统的示意图；
图3为本申请实施例提供的监听方法的流程示意图；
图4为本申请实施例提供的一种通信装置结构示意图；
图5为本申请实施例提供的一种通信装置结构示意图；
图6为本申请实施例提供的一种通信装置结构示意图。
具体实施方式
本申请实施例提供了一种监听方法、设备及系统，有助于在应用PDCCH重复技术的架构中提供对应的BD count one规则，以降低监听PDCCH候选的复杂度的问题。其中，方法和设备是基于同一技术构思的，由于方法及设备解决问题的原理相似，因此设备与方法的实施可以相互参见，重复之处不再赘述。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)下行控制信息(downlink control information，DCI)：1个DCI对应1个PDCCH信道，或者说1个PDCCH上传输(承载)的内容就叫做DCI。示例性的，网络设备发给终端设备的下行控制信息，可以包括上下行资源调度信息(包括资源分配信息、混合自动重传请求(hybrid automatic repeat request，HARQ)信息等)、功率控制信息、时隙格式信息等。
本申请实施例中，1个PDCCH由一个或者几个控制信道元素(control channel element，CCE)组成，CCE在系统范围内做交织，进行干扰随机化。其中，1CCE＝6资源单元组(resource element group，REG)；1REG＝12资源单元(resource element，RE)；1CCE＝72RE。
(2)聚合等级(aggregation level，AL)：1个PDCCH包含的CCE数量就叫做这个PDCCH的聚合等级，也可以称为CCE聚合等级，例如1CCE、2CCE、4CCE或8CCE等。由于不同的PDCCH可以使用不同的CCE聚合等级，也就是包含不同数量的RE，因此，聚合等级也说明了PDCCH信道占用的物理资源数量。在传输相同控制信息的情况下，PDCCH对应的CCE个数越多，传输性能就越好。本申请实施例中，聚合等级也可以称为聚合级别。
网络设备可以配置至少一个聚合等级来组成PDCCH，以支持不同DCI格式在不同信道带宽和信道环境下提高资源利用率。其中，DCI和PDCCH的聚合等级大小关系可以反映编码效率，DCI格式一定的前提下，编码效率(码率＝码元/码长)越低，说明增加冗余越多码长越长，编码鲁棒性越好，则需要高聚合等级的资源来组成PDCCH，适合无线信道环境差的用户；如果用户的无线信道环境很好，则采用高码率和低聚合等级可以节约资源，提高资源利用率。
(3)PDCCH候选(candidate)：标准协议规定或者网络侧配置每一个聚合等级下的PDCCH候选的个数，根据PDCCH候选的聚合等级和对应的个数可以得到每个PDCCH候 选的时频资源位置，也就是PDCCH可能出现的时频资源位置。
以用户专用搜索空间为例，采取递增的方式，如CCE聚合等级选取为1时，在用户专用搜索空间的起始位置读取1个CCE，这1个CCE就是一个PDCCH candidate，用户将读取的数据进行解速率匹配、译码，然后再将得到数据进行RNTI解扰和CRC校验，如果CRC校验成功，用户才知道这个PDCCH是自己需要的，则进一步解出DCI的内容。本申请实施例中，PDCCH候选也可以称为备选PDCCH。
(4)控制资源集合(control resource set，CORESET)：新无线(new radio，NR)中新提出的概念，可以理解为一个时频资源集合。其中，在时域上，1个CORESET可以被配置为1个或连续几个OFDM符号；在频域上，1个CORESET可以是一组连续或非连续的频域资源。
本申请实施例中，1个CORESET可以通过高层信令配置，1个CORESET的配置信息中可以包括但不限于以下特性：CORESET的ID索引、DMRS加扰序列初始化值、CORESET的持续时间、CORESET频域资源bitmap、CCE到REG的映射类型(包括非交织映射non-interleaved CCE-to-REG mapping和交织映射interleaved CCE-to-REG mapping)、REG bundle大小、REG bundle交织器的循环移位值、与天线端口的QCL关系、DCI中TCI域是否存在的指示。
(5)搜索空间(search space)：用于监听某种格式的DCI的一组PDCCH candidate的集合。其中，每个搜索空间中的PDCCH candidate的总数可以通过该搜索空间的聚合等级以及每种聚合等级下PDCCH candidate的个数计算出来。用户会监听(监听＝尝试监听)PDCCH candidate集合，这个集合就叫做搜索空间。
通常把同一个聚合等级对应的PDCCH candidate的集合称为搜索空间(search space)，多个聚合等级对应的搜索空间的总和称为搜索空间集合(search space set)，用于检测公共控制信息的搜索空间称为公共搜索空间(common search space，CSS)，用于检测用户专用控制信息的搜索空间称为用户专用搜索空间(UE-specific search space，USS)。
本申请实施例中，1个CORESET可以包含不同聚合等级下的搜索空间，如图1所示，以斜条纹填充的块表示组成CSS的CCE，以竖条纹填充的块表示组成USS的CCE，以编号0-39依次标识各个CCE。在1个CORESET内给定的1个聚合等级对应的PDCCH candidate集合组成1个搜索空间，例如AL＝1时的CCE-22至CCE-27，或者，AL＝2时的CCE-6至CCE-15，或者，AL＝4时的CCE-28-至CCE-35，或者，AL＝4时的CCE-16-至CCE-31。在1个CORESET内给定的多个聚合等级对应的PDCCH candidate集合组成搜索空间集合，例如，AL＝1时的CCE-22至CCE-27、AL＝2时的CCE-6至CCE-15、AL＝4时的CCE-28-至CCE-35、和AL＝4时的CCE-16-至CCE-31。
(6)、盲检测(blind detection，BD)：终端设备在不确定网络设备采用哪个PDCCH候选下发DCI的情况下，通过监听一组PDCCH候选进行盲检测以接收对应的DCI的技术。
根据不同的用途和内容，DCI被分为很多种格式(format)，例如接入标识RA-RNTI、寻呼标识P-RNTI等，不同用户的PDCCH信息通过其对应的C-RNTI信息进行区分，即DCI的CRC由C-RNTI加掩。网络设备可以通过高层信令(例如RRC信令)给终端设备配置需要监听DCI的PDCCH候选集合，由于终端设备事先并不知道网络设备会在哪个或哪些PDCCH candidate上接收到DCI，但是终端设备根据网络设备的配置信息知道自身当前期待接收哪些下行控制信息以及这些下行控制信息分别对应的搜索空间集合，因此终端 设备必须根据配置信息对PDCCH candidate集合中的每一个PDCCH候选尝试解码，即终端设备采用相应的RNTI对PDCCH candidate上的信息做CRC校验，如果CRC校验成功，那么终端设备就知道这个成功解到了这个DCI信息，终端设备监听多个PDCCH候选并尝试在每个PDCCH候选解码来确定是否接收到对应DCI的行为就叫盲检测。
(7)BD count one操作：使至少两个PDCCH candidate的监听只进行一次，而不需要分别进行的技术。
本申请实施例中，一个搜索空间集合由多个PDCCH candidate组成，不同的PDCCH candidate可能会互相重叠。网络设备可以同时为终端设备配置多个搜索空间，用于检测不同格式的DCI或者是承载不同控制信息的DCI，这些搜索空间之间可以不重叠、部分或完全重叠，也就是说，组成不同搜索空间的PDCCH候选可能会互相重叠。对于互相重叠的两个PDCCH candidate，如果它们占用的时频资源完全相同，且对应于这两个PDCCH candidate的DCI的信息比特数相同，则对于这两个PDCCH candidate的监听可以只进行一次，不需要分别进行，即BD count one操作。
协议38.214-f40版本规定了1次盲检测次数的计算规则(俗称做BD count one操作)或算作1个需要监听的PDCCH candidate，两个PDCCH candidate需要同时满足下面4个条件：相同的CCE(即相同的聚合等级以及相同的起始CCE位置)、相同的扰码序列、相同的CORESET、相同的DCI大小。
(8)传输配置指示状态(transmission configuration indicator state，TCI state)：在NR系统中，每个PDCCH候选都有对应的TCI state，通过TCI state信息，每个PDCCH候选会与一个信道状态信息-参考信号(channel state information reference signal，CSI-RS)或者同步信号/物理广播信道块(synchronisation signal/physical broadcast channel block，SSB)关联。其中，在一个PDCCH候选多次重复的场景下，则一个PDCCH候选的多次重复可以各自对应一个TCI state。
本申请实施例中，关联关系包括以下四种：
a)、'QCL-TypeA':{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)}；
b)、'QCL-TypeB':{Doppler shift,Doppler spread}；
c)、'QCL-TypeC':{Doppler shift,average delay}；
d)、'QCL-TypeD':{空间接收参数(Spatial Rx parameter)}。
其中QCL-TypeA、QCL-TypeB、QCL-TypeC是对应于无线信道的大尺度衰落，用于辅助信道估计，如果PDCCH与某个CSI-RS或SSB关联，则表示该PDCCH经历的大尺度衰落与这个CSI-RS或SSB是相同的，可以利用CSI-RS或SSB来估计得到大尺度衰落相关的参数，用于PDCCH的信道估计。QCL-TypeD是波束相关的信息，表示PDCCH和某个CSI或SSB的接收波束方向相同。
网络设备会通过RRC参数给PDCCH候选配置TCI state。其中，若配置了一个TCI state，可以直接使用；若配置了两个或两个以上TCI state，可以用MAC信令激活其中的一个TCI state，使用该激活的TCI state；若未配置TCI state，则该PDCCH候选与终端设备初始接入时接收的SSB相关联。
(9)PDCCH重复(repetition)：采用至少两个PDCCH候选传输同一个DCI的功能。
本申请实施例中，在网络设备侧，PDCCH的重复发送有多种方式，可以从不同时间、 不同频率或者通过不同波束来多次发送同一个DCI，从而获取分集增益和/或合并增益。另外，也可以通过多个发送站点来同时给一个终端设备发送同一个PDCCH，也就是相当于用不同波束多次发送同一个DCI，这里的多个发送站点可以称为M-TRP。
(10)多个，是指两个或两个以上。
(11)至少一个，是指一个或多个。
(12)“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。
另外，需要理解的是，在本申请的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
下面结合附图对本申请实施例进行详细描述。
本申请实施例可以应用于各种移动通信系统，例如：新无线(new radio，NR)系统、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、先进的长期演进(advanced long term evolution，LTE-A)系统、通用移动通信系统(universal mobile telecommunication system，UMTS)、演进的长期演进(evolved long term evolution，eLTE)系统、未来通信系统等其它通信系统，具体的，在此不做限制。
为便于理解本申请实施例，首先以图2中示出的通信系统为例详细说明适用于本申请实施例的通信系统。图2示出了适用于本申请实施例的通信方法的通信系统的示意图。如图2所示，该通信系统200包括网络设备(例如网络设备202和/或204)和终端设备206，网络设备(202和204)可配置有多个天线，终端设备306也可配置有多个天线。
在本申请实施例中，终端设备，为具有无线收发功能的设备或可设置于该设备的芯片。其中，所述具有无线收发功能的设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、远方站、远程终端、移动设备、用户终端、用户代理或用户装置。在实际应用中，本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。本申请中将前述具有无线收发功能的设备及可设置于该设备中的芯片统称为终端设备。
在本申请实施例中，网络设备可以为各种制式下无线接入设备，例如演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)或节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无 线中继节点、无线回传节点、传输点(transmission and reception point，TRP或者transmission point，TP)等，还可以为5G(NR)系统中的gNB或传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或在集中式-分布式(central unit-distributed,CU-DU)架构下的DU等。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
需要说明的是，本申请实施例中，网络设备和/或终端设备为具备采用至少两个PDCCH候选传输同一个DCI功能的设备，或为具备采用属于同一个PDCCH候选序列的K个PDCCH候选传输同一个DCI的功能的设备，K为大于或等于2的整数。在下文中将结合实施例进行详细描述，在此暂不赘述。
图3为本申请实施例提供的一种监听方法的流程示意图。参阅图3，该方法可以包括以下步骤：
S310：网络设备发送第一信息。
本申请实施例中，网络设备例如可以通过高层信令配置以获得该第一信息。该第一信息中可以包括M个PDCCH候选的配置信息，该M个PDCCH候选可以用于监听PDCCH，M为大于0的整数。
在一种实现方式中，任一个PDCCH候选的配置信息中例如可以包括CORESET配置信息、搜索空间集合配置信息等，以指示PDCCH可能出现的时频资源位置。其中，CORESET配置信息可以用于指示PDCCH候选所对应的CORESET，搜索空间集合配置信息可以用于指示PDCCH候选所对应的搜索空间集合。需要说明的是，本申请实施例中，M个PDCCH候选可以来自同一个搜索空间集合，也可以分别来自同一个CORESET的不同搜索空间集合，也可以是来自不同CORESET的不同搜索空间集合，M个PDCCH候选的聚合等级可以相同也可以不同，本申请对此不做限定。
示例性地，任一个PDCCH候选的配置信息，可以包括以下信息：
(1)CORESET配置信息，包括：CORESET标识、CORESET频域位置、CORESET占用的OFFM符号个数、CCE-REG映射信息、预编码粒度、TCI信息、扰码标识等；
(2)搜索空间集合配置信息，包括：搜索空间标识、关联的CORESET标识、监听周期、监听时域位置、PDCCH候选聚合等级及对应的个数、DCI格式等。
S320：终端设备接收来自网络设备的第一信息，并根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合。
本申请实施例中，在应用PDCCH重复技术的架构中，网络设备配置的M个PDCCH候选可能来自于不同的搜索空间集合，由于一个搜索空间集合可以由多个PDCCH候选组成，而不同的PDCCH候选可能会互相重叠，因此，为了降低监听PDCCH候选的复杂度以及功耗，终端设备在监听PDCCH候选之前，可以确定监听PDCCH候选的监听次数。
需要说明的是，本申请实施例中，每个候选集合对应同一次监听，将M个PDCCH候选划分为N个候选集合，即为确定在M个PDCCH候选上进行监听的监听次数，N为大于 0的整数，且N小于或等于M。其中，为便于区分，以第一候选集合表示N个候选集合中的任一个候选集合，以第一PDCCH候选表示第一候选集合中的任一个PDCCH候选，通过划分，任一个第一候选集合中可以包括至少一个第一PDCCH候选，该至少一个第一PDCCH候选对应同一次监听，而属于不同第一候选集合的第一PDCCH候选则对应不同次监听。下文中将结合附图及实施例对S420中将M个PDCCH候选划分为N个候选集合的具体实现进行详细描述，在此暂不赘述。
S330：网络设备发送DCI。
示例性地，网络设备可以通过PDCCH向终端设备发送DCI，DCI中例如可以包括上下行资源调度信息(包括资源分配信息、HARQ信息等)、功率控制信息、时隙格式信息等，用于对网络设备与终端设备之间的通信进行相关控制和调度。
S340：终端设备根据所述N个候选集合中的每个候选集合进行一次监听。
本申请实施例中，终端设备针对N个候选集合分别进行一次监听，以检测来自网络设备的DCI。在对该DCI解扰和CRC校验成功后，即可根据从检测到的DCI中获得的内容进行下一步动作，例如，发送上行数据、接收下行数据、确定上行功率控制动作、确定动态TDD配置等。之后，网络设备即可根据之前下发的DCI进行对应的动作，例如，接收上行数据、发送下行数据等，在此不再赘述。
下面，结合实施例，对图3所示S320的具体实现进行详细描述。
本申请实施例中，可以预先设置相关预设条件，终端设备具备采用至少两个PDCCH候选接收同一个DCI的功能时，可以根据M个PDCCH候选的配置信息以及该相关预设条件，将M个PDCCH候选划分为N个候选集合，各个候选集合分别对应一次监听。终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选传输同一个DCI的功能时，还可以结合PDCCH候选所属的PDCCH候选序列的相关特性，实现对PDCCH候选的划分。下面针对不同的情形示例说明该划分方案的具体实现的相关细节。
示例一：
本申请实施例中，该终端设备具备采用至少两个PDCCH候选接收同一个DCI的功能。
该相关预设条件可以包括第一预设条件，该第一预设条件用于指示两个PDCCH候选对应同一次监听时应满足的条件。该第一预设条件例如可以包括以下内容：
所述两个PDCCH候选对应的控制信道元素CCE集合相同；
所述两个PDCCH候选的扰码序列相同；
终端设备在所述两个PDCCH候选中监听的下行控制信息DCI长度相同；
所述两个PDCCH候选的传输配置指示TCI状态相同；或者，所述两个PDCCH候选来自的控制资源集合CORESET的标识相同、且所述两个PDCCH候选的传输配置指示TCI状态相同。
S420中，终端设备可以根据M个PDCCH候选的配置信息、以及该第一预设条件，遍历该M个PDCCH候选，以将该M个PDCCH候选中的任意两个PDCCH候选进行比较，根据该任意两个PDCCH候选是否满足该第一预设条件，来判断该任意两个PDCCH候选是否对应同一次监听，即是否属于同一PDCCH候选集合。
示例性地，针对第m个PDCCH候选，m＝1,2，……，M，终端设备在遍历时，可以根据第m个PDCCH候选与第m+1个PDCCH候选各自的配置信息，将该第m个PDCCH候选与第m+1个PDCCH候选进行比较。
若两者满足该第一预设条件，终端设备确定该第m个PDCCH候选与第m+1个PDCCH候选可以只进行一次监听，则将两者划分至同一候选集合。
若两者不满足该第一预设条件，则终端设备确定该第m个PDCCH候选与第m+1个PDCCH候选需要进行两次监听，即两者分别属于不同的候选集合。
之后，终端设备根据与上述相同的方式继续遍历，以将该第m个PDCCH候选逐一与第m+2个、m+3个，……，第M个PDCCH候选进行比较，直至确定该M个PDCCH候选中与该第m个PDCCH候选属于同一PDCCH候选集合的其它PDCCH候选。
在最终得到的N个候选集合中，任一个第一候选集合中的任意两个第一PDCCH候选满足上述第一预设条件。即，所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
需要说明的是，上述仅是对本申请实施例中终端设备将M个PDCCH候选划分为N个候选集合的示例说明而非任何限定。在具体实现中，终端设备可以逐一针对各个PDCCH候选进行遍历，也可以同时针对各个PDCCH候选进行遍历，本申请对此具体实现不做限定。可以理解的是，若该M个PDCCH候选中，不存在与第m个PDCCH候选满足上述第一预设条件的其它PDCCH候选，则该第m个PDCCH候选自身组成一个候选集合并对应一次监听。
示例二：
本申请实施例中，该终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能。网络设备在进行配置时，可以配置至少一个PDCCH候选序列。配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中可以包括K个PDCCH候选，K为大于或等于2的整数、且K小于M。任一个PDCCH候选的配置信息可以用于指示该PDCCH候选所属的PDCCH候选序列。
该相关预设条件可以包括第二预设条件和第三预设条件。
第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
该第二预设条件例如可以包括：所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j。
该第三预设条件例如可以包括以下内容：
所述两个PDCCH候选对应的控制信道元素CCE集合相同；
所述两个PDCCH候选的扰码序列相同；
所述终端设备在所述两个PDCCH候选中监听的下行控制信息DCI长度相同；
所述两个PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述两个PDCCH候选的传输配置指示TCI状态相同。
S320中，终端设备可以根据M个PDCCH候选的配置信息、以及该第二预设条件、 第三预设条件，遍历该M个PDCCH候选，以将该M个PDCCH候选中的任意两个PDCCH候选进行比较，根据该任意两个PDCCH候选是否满足该第二预设条件，来判断该任意两个PDCCH候选是否对应同一次监听，即是否属于同一PDCCH候选集合。
以K＝2为例，PDCCH候选序列也可以称为PDCCH候选对。
对于两个PDCCH候选序列X和Y，PDCCH候选序列X例如表示为{PDCCH候选X_1，PDCCH候选X_2}，PDCCH候选序列Y例如表示为{PDCCH候选Y_1，PDCCH候选Y_2}。
终端设备在根据第二预设条件针对PDCCH候选X_1进行遍历时，可以包括以下情形：
a)、若与该PDCCH候选X_1进行比较的另一个PDCCH候选为PDCCH候选X_2，由于两者属于同一PDCCH候选序列，则这两个PDCCH候选不做比较。
b)、若与该PDCCH候选X_1进行比较的另一个PDCCH候选为PDCCH候选Y_2，由于PDCCH候选X_1在PDCCH候选序列X中的位置，与PDCCH候选Y_2在PDCCH候选序列Y中的位置不对应，则这两个PDCCH候选不做比较。
c)、若与该PDCCH候选X_1进行比较的另一个PDCCH候选为PDCCH候选Y_1，由于该PDCCH候选X_1与该PDCCH候选Y_1属于两个PDCCH候选序列、且分别是所属PDCCH候选序列中的第i＝1个PDCCH候选，则终端设备根据该PDCCH候选X_1与该PDCCH候选Y_1各自的配置信息、以及第三预设条件，将两PDCCH候选进行比较。
若两者满足第三预设条件，则终端设备确定该PDCCH候选X_1与该PDCCH候选Y_1可以只进行一次监听，将两者划分至同一候选集合。
若两者不满足该第三预设条件，则终端设备确定该PDCCH候选X_1与该PDCCH候选Y_1需要进行两次监听，即两者分别属于不同的候选集合。
之后，终端设备根据与上述相同的方式继续遍历，以将该PDCCH候选X_1与其它PDCCH候选进行比较，直至确定出该M个PDCCH候选中与该PDCCH候选X_1属于同一PDCCH候选集合的其它PDCCH候选。
终端设备在根据第二预设条件针对PDCCH候选X_2进行遍历时，可以包括以下情形：
a)、若与该PDCCH候选X_2进行比较的另一个PDCCH候选为PDCCH候选X_1，由于两者属于同一PDCCH候选序列，则这两个PDCCH候选不做比较。
b)、若与该PDCCH候选X_2进行比较的另一个PDCCH候选为PDCCH候选Y_1，由于PDCCH候选X_2在PDCCH候选序列X中的位置，与PDCCH候选Y_1在PDCCH候选序列Y中的位置不对应，则这两个PDCCH候选不做比较。
c)、若与该PDCCH候选X_2进行比较的另一个PDCCH候选为PDCCH候选Y_2，由于该PDCCH候选X_2与该PDCCH候选Y_2属于两个PDCCH候选序列且是所属PDCCH候选序列中的第i＝2个PDCCH候选，则终端设备根据PDCCH候选序列X中的PDCCH候选、与PDCCH候选序列Y中的PDCCH候选各自的配置信息、以及第三预设条件，将两PDCCH候选序列中分别包括的前i个PDCCH候选对应进行比较。
若PDCCH候选X_1与PDCCH候选Y_1对应满足第三预设条件、且PDCCH候选X_2与PDCCH候选Y_2对应满足第三预设条件，则终端设备确定该PDCCH候选X_2与该PDCCH候选Y_2可以只进行一次监听，将两者划分至同一候选集合。
若PDCCH候选X_1与PDCCH候选Y_1不满足该第一预设条件，或者，PDCCH候选X_2与PDCCH候选Y_2不满足该第一预设条件，或者，PDCCH候选X_1与PDCCH候选Y_1不满足该第一预设条件、且PDCCH候选X_2与PDCCH候选Y_2不满足该第一 预设条件，则终端设备确定该PDCCH候选X_2与该PDCCH候选Y_2需要进行两次监听，即两者分别属于不同的候选集合。
之后，终端设备根据与上述相同的方式继续遍历，以将该PDCCH候选X_2与其它PDCCH候选进行比较，直至确定出该M个PDCCH候选中与该PDCCH候选X_2属于同一PDCCH候选集合的其它PDCCH候选。
在最终得到的N个候选集合中，任一个第一候选集合中的任意两个第一PDCCH候选满足上述第二预设条件。即，所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
需要说明的是，本申请实施例中，不同PDCCH候选序列中对应位置的两个PDCCH候选也可能是同一个PDCCH候选，此时，这两个PDCCH候选无需比较是否满足第三预设条件。例如：
1)PDCCH候选X_1与PDCCH候选Y_1对应同一个PDCCH候选，PDCCH X_2与PDCCH候选Y_2对应不同的PDCCH候选。此时PDCCH候选X_1与PDCCH候选Y_1必然满足上述第三预设条件，在判断PDCCH X_2与PDCCH候选Y_2是否满足第二预设条件时，只需要判断PDCCH X_2与PDCCH候选Y_2是否满足第三预设条件即可。
2)PDCCH候选X_2与PDCCH候选Y_2对应同一个PDCCH候选，PDCCH X_1与PDCCH候选Y_1对应不同的PDCCH候选。此时PDCCH候选X_2与PDCCH候选Y_2必然满足上述第三预设条件，在判断PDCCH X_2与PDCCH候选Y_2是否满足第二预设条件时，只需要判断PDCCH X_1与PDCCH候选Y_1是否满足第三预设条件即可。
需要说明的是，若网络设备配置的至少一个PDCCH候选序列中，存在两个PDCCH候选序列中包含的PDCCH候选数量不相同的情形，例如，PDCCH候选序列X中包括2个PDCCH候选、PDCCH候选序列Y中包括3个PDCCH候选，则这两个PDCCH候选序列中分别包括的PDCCH候选不做比较。即，只在任意两个PDCCH候选分别属于两个PDCCH候选序列、且所述两个PDCCH候选序列中包括的PDCCH候选的数量相同时，将所述两个PDCCH候选序列中各自包括的第i个PDCCH候选进行比较。
可以理解的是，上述仅是以K＝2为例，对分别属于两个PDCCH候选序列的PDCCH候选进行BD count one操作的示例说明而非任何限定。当K＞2时，若待比较的任意两个PDCCH候选中的任一个PDCCH候选，为该PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，则在两个PDCCH候选序列中各自包括的第i个PDCCH候选对应满足第三预设条件时，确定该任意两个PDCCH候选可以只进行一次监听，否则需要进行两次监听，其中，i、j为大于0的整数，1＜j＜＝K，i＜＝j。
此外，网络设备在进行配置时，针对任一个PDCCH候选序列中包括的K个PDCCH候选，各个PDCCH候选CORESET的标识可以相同也可以不同，不同PDCCH候选序列中对应位置的PDCCH候选的CORESET的标识必须相同。例如，PDCCH candidate X_1 与PDCCH candidate X_2的CORESET的标识可以相同也可以不同，PDCCH candidate X_1与PDCCH candidate Y_1的CORESET的标识必须相同。
示例三：
本申请实施例中，终端设备可以具备采用至少两个PDCCH候选接收同一个DCI的功能，以及具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能。任一个PDCCH候选可以具有PDCCH候选类型，该PDCCH候选类型为PDCCH候选的接收译码类型，可以包括不译码候选、独立译码候选、联合译码候选中的至少一种。
网络设备与终端设备之间可以约定PDCCH候选的接收策略。
对于未互相重叠的PDCCH候选，终端设备在接收时可以针对相应的PDCCH候选直接进行接收和独立译码。此种情况下，若M个PDCCH候选均为独立译码候选，则将每个PDCCH候选作为相互独立(即不相关)的个体，并参见前文结合示例一的相关描述，将M个PDCCH候选划分为N个PDCCH候选集合。
对于多个重复的PDCCH候选，根据相应的接收策略，则可以针对单个PDCCH候选进行独立译码，也可以针对多个重复传输的PDCCH候选进行联合译码(即先合并再译码)。在应用PDCCH重复技术的架构中，终端设备在接收PDCCH序列时，对于PDCCH候选序列中包括的各个PDCCH候选的接收策略可以有多种，则可以包括：针对单个PDCCH候选不译码，也可以针对单个PDCCH候选进行独立译码，也可以针对至少两个PDCCH候选进行联合译码(即对多个进行重复传输的PDCCH候选的合并信息进行译码)。
以两次重复为例，假设终端设备针对两次重复的{PDCCH候选1，PDCCH候选2}序列进行接收，则接收方案可以包括以下内容：
接收方案1：只针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码。此时，对于PDCCH候选1则不译码，即在接收到PDCCH候选1后不译码而等到接收到PDCCH候选2后，针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，译码正确即可。
接收方案2：针对PDCCH候选1进行接收译码，针对PDCCH候选2进行接收译码，只要两者中有一个译码正确即可。
接收方案3：针对PDCCH候选1进行接收译码，针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，只要两者有一个译码正确即可。
接收方案4，针对PDCCH候选1进行接收译码，针对PDCCH候选2进行接收译码，针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，只要三者有一个译码正确即可。
此种情况下，若M个PDCCH候选中的任一个，可能为不译码候选、独立译码候选和联合译码候选中的至少一种，则可以参见前文结合示例二的相关描述，将M个PDCCH候选划分为N个PDCCH候选集合。
在S320中，终端设备可以根据M个PDCCH候选的配置信息，确定该M个PDCCH候选分别所属的PDCCH候选类型。其中，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种。然后，终端设备根据M个PDCCH候选分别所属的PDCCH候选类型，将所述M个PDCCH候选划分为所述N个候选集合。
在此，针对任一个PDCCH候选，终端设备可以首先根据该PDCCH候选的配置信息， 确定该PDCCH候选是单个PDCCH候选，还是PDCCH候选序列中的一个PDCCH候选。
若该PDCCH候选是单个PDCCH候选，则其所属的PDCCH候选类型为独立译码候选。
若该PDCCH候选是PDCCH候选序列中的一个PDCCH候选，则可以结合该PDCCH候选序列对应的接收策略，来确定该PDCCH候选的PDCCH候选类型。
示例性地，K＝2时，终端设备针对两次重复的{PDCCH候选1，PDCCH候选2}序列的接收策略包括前文述及的接收方案时，该{PDCCH候选1，PDCCH候选2}序列对应的PDCCH候选的PDCCH候选类型的判断方式如下所示：
接收方案1：只针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码。即，在接收到PDCCH候选1后不译码，而等到接收到PDCCH候选2后针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，译码正确即可。
此时，PDCCH候选1为不译码候选，PDCCH候选2为联合译码候选。
接收方案2：针对PDCCH候选1进行接收译码，针对PDCCH候选2进行接收译码，只要两者中有一个译码正确即可。
此时，PDCCH候选1和PDCCH候选2均为独立译码候选。
接收方案3：针对PDCCH候选1进行接收译码，针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，只要两者有一个译码正确即可。
此时，PDCCH候选1为独立译码候选，PDCCH候选2为联合译码候选。
接收方案4：针对PDCCH候选1进行接收译码，针对PDCCH候选2进行接收译码，针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，只要三者有一个译码正确即可。
此时，PDCCH候选1为独立译码候选，PDCCH候选2既是独立译码候选又是联合译码候选(在此种情况下，PDCCH候选2需要作为两个PDCCH候选来参与BD count one操作)。
示例性地，以K＝3为例，终端设备针对三次重复的{PDCCH候选1，PDCCH候选2，PDCCH候选3}序列的接收策略、以及序列中对应的PDCCH候选的PDCCH候选类型的判断方式可以如下所示：
接收方案1：只针对PDCCH候选1、PDCCH候选2和PDCCH候选3的合并信息进行接收译码。即，在接收到PDCCH候选1、PDCCH候选2后均不译码，而等到接收到PDCCH候选3后针对PDCCH候选1、PDCCH候选2和PDCCH候选3的合并信息进行接收译码，译码正确即可。
此时，PDCCH候选1、PDCCH候选2为不译码候选，PDCCH候选3为联合译码候选。
接收方案2：针对PDCCH候选1进行接收译码，针对PDCCH候选2进行接收译码，针对PDCCH候选3进行接收译码，只要三者中有一个译码正确即可。
此时，PDCCH候选1、PDCCH候选2和PDCCH候选3均为独立译码候选。
接收方案3：针对PDCCH候选1进行接收译码，针对PDCCH候选2进行接收译码，针对PDCCH候选3进行接收译码，针对PDCCH候选1、PDCCH候选2和PDCCH候选3的合并信息进行接收译码，只要四者中有一个译码正确即可。
此时，PDCCH候选1/PDCCH候选2/PDCCH候选3既是独立译码候选又是联合译码 候选(在此种情况下，PDCCH候选1/PDCCH候选2/PDCCH候选3需要作为两个PDCCH候选来参与BD count one操作)。
接收方案4：针对PDCCH候选1进行接收译码，针对PDCCH候选2进行接收译码，针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，针对PDCCH候选3进行接收译码，针对PDCCH候选1、PDCCH候选2和PDCCH候选3的合并信息进行接收译码，只要五者中有一个译码正确即可。
此时，PDCCH候选1/PDCCH候选2/PDCCH候选3既是独立译码候选又是联合译码候选(在此种情况下，PDCCH候选1/PDCCH候选2/PDCCH候选3需要作为两个PDCCH候选来参与BD count one操作)。
接收方案5：针对PDCCH候选1进行接收译码，针对PDCCH候选1和PDCCH候选2的合并信息进行接收译码，针对PDCCH候选3进行接收译码，针对PDCCH候选1、PDCCH候选2和PDCCH候选3的合并信息进行接收译码，只要三者中有一个译码正确即可。
此时，PDCCH候选1既是独立译码候选又是联合译码候选(在此种情况下，PDCCH候选1需要作为两个PDCCH候选来参与BD count one操作)，PDCCH候选2、PDCCH候选3均为联合译码候选。
可以理解的是，上述仅以K＝2、K＝3为例，对结合PDCCH候选序列的接收策略确定该PDCCH候选序列中的各个PDCCH候选的PDCCH候选类型的具体实现进行示例说明而非任何限定。当K＞3时，终端设备对于PDCCH候选序列进行接收时，相应的接收策略可以包括更多的接收方案，仍可结合相应PDCCH候选序列的接收策略，确定该PDCCH候选序列中所包括的K个PDCCH候选的PDCCH候选类型，在此不再赘述。
在基于上述方式确定M个PDCCH候选的PDCCH候选类型之后，则可以根据M个PDCCH候选分别所属的PDCCH候选类型，结合示例一或示例二的相关预设条件，对该M个PDCCH候选中的任意两个PDCCH候选进行比较，以将该M个PDCCH候选划分为N个候选集合。
具体的，在S320中，若所述M个PDCCH候选中的任意两个PDCCH候选均为独立译码候选、且满足第一预设条件，则所述任意两个PDCCH候选对应同一次监听，则将两者划分至同一候选集合。若所述M个PDCCH候选中的任意两个PDCCH候选中，一个为独立译码，另一个为联合译码，则所述任意两个PDCCH候选对应不同次监听，则将两者划分至不同的PDCCH候选集合。若M个PDCCH候选中的任意两个PDCCH候选均为联合译码候选、且满足第二预设条件，则所述任意两个PDCCH候选对应同一次监听，则将两者划分至同一候选集合。
在最终得到的N个候选集合中，第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
至此，已经基于上述示例一-示例三，示意性说明了本申请实施例中在不同的情形下，将M个PDCCH候选划分为N个PDCCH候选集合的具体实现。应理解，上述仅是对本申请实施例的实现方式的示意说明而非任何限定。
需要说明的是，本申请实施例中，不同PDCCH候选序列中对应位置的两个PDCCH候选也可能是同一个PDCCH候选，此时，这两个PDCCH候选无需比较是否满足第三预设条件，具体可参见上文结合示例二的相关描述，在此不再赘述。
如图4所示，为本申请实施例提供一种通信装置的结构示意图。该通信装置具备采用至少两个物理下行控制信道PDCCH候选传输同一个下行控制信息DCI的功能，可以用于执行上述各方法实施例中终端设备或网络设备的动作，该通信装置400包括：通信单元401和处理单元402。
在一个示例中，当该通信装置400用于实现终端设备的动作时，该通信装置具备采用至少两个物理下行控制信道PDCCH候选接收同一个下行控制信息DCI的功能。其中，通信单元401，用于接收来自网络设备的第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；处理单元402，用于根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M；所述通信单元还用于根据所述N个候选集合中的每个候选集合进行一次监听。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选满足第一预设条件；其中，所述第一预设条件用于指示两个PDCCH候选对应同一次监听时应满足的条件。
在一种可能的实现方式中，所述第一预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，所述配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中包括K个PDCCH候选，K为大于或等于2的整数、且K小于M；所述终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能；其中，所述第一候选集合中的任意两个第一PDCCH候选分别属于两个PDCCH候选序列、且所述任意两个第一PDCCH候选满足第二预设条件；其中，所述第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
在一种可能的实现方式中，所述第二预设条件包括：所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，任一个PDCCH候选序列中包括的K个PDCCH候选的 CORESET的标识相同；或者，任一个PDCCH候选序列中包括的K个PDCCH候选中至少两个PDCCH候选的CORESET的标识不同。
在一种可能的实现方式中，所述处理单元用于：根据所述配置信息，确定所述M个PDCCH候选分别所属的PDCCH候选类型；其中，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种；根据所述M个PDCCH候选分别所属的PDCCH候选类型，将所述M个PDCCH候选划分为所述N个候选集合。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，所述第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
在另一个示例中，当该通信装置400用于实现网络设备的动作时，该通信装置具备采用至少两个物理下行控制信道PDCCH候选发送同一个下行控制信息DCI的功能。其中，处理单元402，用于确定第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；通信单元401，用于向终端设备发送所述第一信息，以使得所述终端设备根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，并根据所述N个候选集合中的每个候选集合进行一次监听；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M。
图5是本申请实施例提供的一种通信装置的结构示意图。图5所示的通信装置可以为图4所示的通信装置的一种硬件电路的实现方式。该通信装置可适用于图4所示出的流程图中，执行上述方法实施例中网络设备的功能。为了便于说明，图5仅示出了通信装置的主要部件。可选的，该通信装置可以是网络设备，也可以是网络设备中的装置，如芯片或者芯片系统，其中所述芯片系统包含至少一个芯片，所述芯片系统还可以包括其他电路结构和/或分立器件。可选的，以该通信装置为终端设备或网络设备为例，如图5所示，通信装置500包括处理器501、存储器502、收发器503、天线504等。
处理器501，用于确定第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；收发器503，用于向终端设备发送所述第一信息，以使得所述终端设备根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，并根据所述N个候选集合中的每个候选集合进行一次监听；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M。
图6是本申请实施例提供的一种通信装置的结构示意图。图6所示的通信装置可以为图4所示的通信装置的一种硬件电路的实现方式。该通信装置可适用于图4所示出的流程图中，执行上述方法实施例中终端侧设备的功能。为了便于说明，图6仅示出了通信装置的主要部件。可选的，该通信装置可以是终端设备，也可以是终端设备中的装置，如芯片或者芯片系统，其中所述芯片系统包含至少一个芯片，所述芯片系统还可以包括其他电路结构和/或分立器件。可选的，以该通信装置为网络设备为例，如图6所示，通信装置600包括处理器601、存储器602、收发器603、天线604以及输入输出装置605。处理器601主要用于对通信协议以及通信数据进行处理，以及对整个无线通信装置进行控制，执行软 件程序，处理软件程序的数据，例如用于支持无线通信装置执行上述方法实施例中所描述的动作等。存储器602主要用于存储软件程序和数据。收发器603主要用于基带信号与射频信号的转换以及对射频信号的处理。天线604主要用于收发电磁波形式的射频信号。输入输出装置605，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
收发器603，用于接收来自网络设备的第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；处理器601，用于根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M；所述通信单元还用于根据所述N个候选集合中的每个候选集合进行一次监听。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选满足第一预设条件；其中，所述第一预设条件用于指示两个PDCCH候选对应同一次监听时应满足的条件。
在一种可能的实现方式中，所述第一预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，所述配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中包括K个PDCCH候选，K为大于或等于2的整数、且K小于M；所述终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能；其中，所述第一候选集合中的任意两个第一PDCCH候选分别属于两个PDCCH候选序列、且所述任意两个第一PDCCH候选满足第二预设条件；其中，所述第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
在一种可能的实现方式中，所述第二预设条件包括：所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；所述任意两个第一PDCCH候选的扰码序列相同；所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
在一种可能的实现方式中，任一个PDCCH候选序列中包括的K个PDCCH候选的CORESET的标识相同；或者，任一个PDCCH候选序列中包括的K个PDCCH候选中至少两个PDCCH候选的CORESET的标识不同。
在一种可能的实现方式中，所述处理单元用于：根据所述配置信息，确定所述M个PDCCH候选分别所属的PDCCH候选类型；其中，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种；根据所述M个PDCCH候选分别所属的PDCCH候选类型，将所述M个PDCCH候选划分为所述N个候选集合。
在一种可能的实现方式中，所述第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，所述第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (21)

  1. 一种监听方法，其特征在于，应用于终端设备；其中，所述终端设备具备采用至少两个物理下行控制信道PDCCH候选接收同一个下行控制信息DCI的功能，所述方法包括：
    接收来自网络设备的第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；
    根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M；
    根据所述N个候选集合中的每个候选集合进行一次监听。
  2. 根据权利要求1所述的方法，其特征在于，所述第一候选集合中的任意两个第一PDCCH候选满足第一预设条件；其中，所述第一预设条件用于指示两个PDCCH候选对应同一次监听时应满足的条件。
  3. 根据权利要求2所述的方法，其特征在于，所述第一预设条件包括以下内容：
    所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；
    所述任意两个第一PDCCH候选的扰码序列相同；
    所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；
    所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
  4. 根据权利要求1所述的方法，其特征在于，所述配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中包括K个PDCCH候选，K为大于或等于2的整数、且K小于M；所述终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能；
    其中，所述第一候选集合中的任意两个第一PDCCH候选分别属于两个PDCCH候选序列、且所述任意两个第一PDCCH候选满足第二预设条件；其中，所述第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
  5. 根据权利要求4所述的方法，其特征在于，所述第二预设条件包括：
    所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：
    所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；
    所述任意两个第一PDCCH候选的扰码序列相同；
    所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；
    所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
  6. 根据权利要求4或5所述的方法，其特征在于，
    任一个PDCCH候选序列中包括的K个PDCCH候选的CORESET的标识相同；或者，
    任一个PDCCH候选序列中包括的K个PDCCH候选中至少两个PDCCH候选的CORESET的标识不同。
  7. 根据权利要求1-6中任一项所述的方法，其特征在于，根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，包括：
    根据所述配置信息，确定所述M个PDCCH候选分别所属的PDCCH候选类型；其中，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种；
    根据所述M个PDCCH候选分别所属的PDCCH候选类型，将所述M个PDCCH候选划分为所述N个候选集合。
  8. 根据权利要求7所述的方法，其特征在于，
    所述第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，
    所述第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
  9. 一种监听方法，其特征在于，应用于网络设备；其中，所述网络设备具备采用至少两个物理下行控制信道PDCCH候选发送同一个下行控制信息DCI的功能，所述方法包括：
    确定第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；
    向终端设备发送所述第一信息，以使得所述终端设备根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，并根据所述N个候选集合中的每个候选集合进行一次监听；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M。
  10. 一种通信装置，其特征在于，所述通信装置具备采用至少两个物理下行控制信道PDCCH候选接收同一个下行控制信息DCI的功能；所述通信装置包括：
    通信单元，用于接收来自网络设备的第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；
    处理单元，用于根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M；
    所述通信单元还用于根据所述N个候选集合中的每个候选集合进行一次监听。
  11. 根据权利要求10所述的通信装置，其特征在于，所述第一候选集合中的任意两个第一PDCCH候选满足第一预设条件；其中，所述第一预设条件用于指示两个PDCCH候选对应同一次监听时应满足的条件。
  12. 根据权利要求11所述的通信装置，其特征在于，所述第一预设条件包括以下内容：
    所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；
    所述任意两个第一PDCCH候选的扰码序列相同；
    所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；
    所述任意两个第一PDCCH候选的传输配置指示TCI状态相同；或者，所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同、且所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
  13. 根据权利要求10所述的通信装置，其特征在于，所述配置信息用于指示所述M个PDCCH候选分别所属的PDCCH候选序列，任一个PDCCH候选序列中包括K个PDCCH候选，K为大于或等于2的整数、且K小于M；所述终端设备具备采用属于同一个PDCCH候选序列的K个PDCCH候选接收同一个DCI的功能；
    其中，所述第一候选集合中的任意两个第一PDCCH候选分别属于两个PDCCH候选序列、且所述任意两个第一PDCCH候选满足第二预设条件；其中，所述第二预设条件用于指示两个PDCCH候选分别属于两个PDCCH候选序列、且对应同一次监听时应满足的条件。
  14. 根据权利要求13所述的通信装置，其特征在于，所述第二预设条件包括：
    所述任意两个第一PDCCH候选中的任一个第一PDCCH候选为所述第一PDCCH候选所属的PDCCH候选序列中的第j个PDCCH候选，1＜j＜＝K，且所述任意两个第一PDCCH候选分别所属的两个PDCCH候选序列各自包括的第i个PDCCH候选对应满足第三预设条件，i＜＝j；其中，所述第三预设条件包括以下内容：
    所述任意两个第一PDCCH候选对应的控制信道元素CCE集合相同；
    所述任意两个第一PDCCH候选的扰码序列相同；
    所述终端设备在所述任意两个第一PDCCH候选中监听的下行控制信息DCI长度相同；
    所述任意两个第一PDCCH候选来自的控制资源集合CORESET的标识相同，和/或，所述任意两个第一PDCCH候选的传输配置指示TCI状态相同。
  15. 根据权利要求13或14所述的通信装置，其特征在于，
    任一个PDCCH候选序列中包括的K个PDCCH候选的CORESET的标识相同；或者，
    任一个PDCCH候选序列中包括的K个PDCCH候选中至少两个PDCCH候选的CORESET的标识不同。
  16. 根据权利要求10-15中任一项所述的通信装置，其特征在于，所述处理单元用于：
    根据所述配置信息，确定所述M个PDCCH候选分别所属的PDCCH候选类型；其中，任一个PDCCH候选的PDCCH候选类型用于指示所述PDCCH候选为不译码候选、独立译码候选、联合译码候选中的至少一种；
    根据所述M个PDCCH候选分别所属的PDCCH候选类型，将所述M个PDCCH候选划分为所述N个候选集合。
  17. 根据权利要求16所述的通信装置，其特征在于，
    所述第一候选集合中的任意两个第一PDCCH候选均为独立译码候选；或者，
    所述第一候选集合中的任意两个第一PDCCH候选均为联合译码候选。
  18. 一种通信装置，其特征在于，所述通信装置具备采用至少两个物理下行控制信道PDCCH候选发送同一个下行控制信息DCI的功能，所述通信装置包括：
    处理单元，用于确定第一信息；所述第一信息包括M个PDCCH候选的配置信息，所述M个PDCCH候选用于监听所述PDCCH，M为大于0的整数；
    通信单元，用于向终端设备发送所述第一信息，以使得所述终端设备根据所述M个PDCCH候选的配置信息，将所述M个PDCCH候选划分为N个候选集合，并根据所述N 个候选集合中的每个候选集合进行一次监听；其中，所述N个候选集合中的第一候选集合中包括至少一个第一PDCCH候选，所述至少一个第一PDCCH候选对应同一次监听，所述第一候选集合为所述N个候选集合中的任一个，N为大于0的整数，且N小于或等于M。
  19. 一种终端设备，其特征在于，包括处理器，所述处理器与存储器耦合：
    所述处理器，用于执行所述存储器中存储的计算机程序或指令，以使得所述装置执行如权利要求1至8中任一项所述的方法。
  20. 一种网络设备，其特征在于，包括处理器，所述处理器与存储器耦合：
    所述处理器，用于执行所述存储器中存储的计算机程序或指令，以使得所述装置执行如权利要求9所述的方法。
  21. 一种可读存储介质，其特征在于，包括程序或指令，当所述程序或指令被执行时，如权利要求1至9中任意一项所述的方法被执行。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110351002A (zh) * 2018-04-03 2019-10-18 北京展讯高科通信技术有限公司 候选pdcch的优先级确定及监听方法、装置、存储介质、基站、终端
WO2020018268A1 (en) * 2018-07-20 2020-01-23 Qualcomm Incorporated Downlink control for multiple transmit receive point configurations
CN110831020A (zh) * 2018-08-10 2020-02-21 华为技术有限公司 检测dci的方法、配置pdcch的方法和通信装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110351002A (zh) * 2018-04-03 2019-10-18 北京展讯高科通信技术有限公司 候选pdcch的优先级确定及监听方法、装置、存储介质、基站、终端
WO2020018268A1 (en) * 2018-07-20 2020-01-23 Qualcomm Incorporated Downlink control for multiple transmit receive point configurations
CN110831020A (zh) * 2018-08-10 2020-02-21 华为技术有限公司 检测dci的方法、配置pdcch的方法和通信装置

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