WO2023019577A1 - 物理下行控制信道监测方法、装置及存储介质 - Google Patents

物理下行控制信道监测方法、装置及存储介质 Download PDF

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Publication number
WO2023019577A1
WO2023019577A1 PCT/CN2021/113868 CN2021113868W WO2023019577A1 WO 2023019577 A1 WO2023019577 A1 WO 2023019577A1 CN 2021113868 W CN2021113868 W CN 2021113868W WO 2023019577 A1 WO2023019577 A1 WO 2023019577A1
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Prior art keywords
search space
control channel
downlink control
physical downlink
space set
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PCT/CN2021/113868
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English (en)
French (fr)
Inventor
李明菊
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北京小米移动软件有限公司
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Priority to CN202180002513.4A priority Critical patent/CN113841347A/zh
Priority to PCT/CN2021/113868 priority patent/WO2023019577A1/zh
Publication of WO2023019577A1 publication Critical patent/WO2023019577A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver

Definitions

  • the present disclosure relates to the technical field of communications, and in particular to a method, device and storage medium for monitoring a physical downlink control channel.
  • New Radio for example, when the communication frequency band is in frequency range 2, due to the fast attenuation of high-frequency channels, in order to ensure coverage, it is necessary to use beam-based transmission and reception.
  • the terminal since it is considered that the terminal can only use one beam to receive the physical downlink control channel (PDCCH) sent by the network device, the monitoring time domain positions (monitors) corresponding to multiple PDCCH candidate resources (PDCCH candidates) occasion) overlap, when the quasi-colocation (quasi-colocation, QCL) beam information of multiple PDCCH candidates corresponding to the control resource set (Control Resource Set, CORESET) is different, for example, when the QCL type (Type) D is different, then The terminal needs to determine a specified CORESET in this overlapping monitor occasion, and then use the QCL Type D corresponding to the specified CORESET to monitor the PDCCH corresponding to the specified CORESET and the QCL Type D corresponding to the specified CORESET in this overlapping monitor occasion PDCCHs corresponding to the same other CORESETs.
  • QCL quasi-colocation
  • the terminal Since in overlapping monitor occasions, the terminal can only use one QCL Type D to monitor PDCCH, therefore, the terminal will not be able to receive PDCCH monitoring using different QCL Type D, which reduces the success rate of PDCCH transmission.
  • the terminal will support the use of multiple (typically 2) QCL Type D to receive multiple PDCCHs at the same time, so on overlapping monitor occasions, it is necessary to determine one or more CORESETs and let the terminal use the one or more QCL Type D corresponding to a CORESET to monitor multiple PDCCHs on overlapping monitor occasions.
  • the present disclosure provides a physical downlink control channel monitoring method, device and storage medium.
  • a physical downlink control channel monitoring method which is applied to a terminal, and the physical downlink control channel monitoring method includes:
  • the terminal In response to the terminal being configured with the first search space set and the second search space set having a link relationship, and determining that there are multiple PDCCHs in the time domain position overlapping with the monitoring time of the second PDCCH candidate of the second search space set candidate, determining whether the first PDCCH candidate of the first search space set is monitored, wherein the first PDCCH candidate and the second PDCCH candidate have a link relationship;
  • monitoring the second PDCCH candidate includes:
  • the second PDCCH candidate in response to determining that the first PDCCH candidate of the first search space set is monitored, the second PDCCH candidate has the highest monitoring priority among the plurality of PDCCH candidates.
  • the second PDCCH candidate in response to determining that the first PDCCH candidate of the first search space set is not monitored, the second PDCCH candidate has the lowest monitoring priority among the plurality of PDCCH candidates.
  • the monitoring priority of the second PDCCH candidate is determined based on the second search space set corresponding to the second PDCCH candidate.
  • determining whether the first PDCCH candidate of the first search space set is monitored includes: determining the monitoring priority of the first search space set, and determining the first search space set according to the monitoring priority Whether the first PDCCH candidate is monitored.
  • the monitoring priority of the first search space set and/or the second search space set is determined based on attribute information of the search space set.
  • the attribute information of the search space set includes at least one of the following:
  • the index of the serving cell to which the search space set belongs the type of the search space set, the search space set identifier of the search space set, the link relationship information of the search space set, and the information including the search space set the identification of a pair of search space sets composed of the two search space sets of the link relation;
  • the type of the search space set includes a general search space set or a terminal-specific search space set; the link relationship information of the search space set includes that the search space set does not have a link relationship with any search space set, or the A set of search spaces has a link relationship with another set of search spaces.
  • the identification of the search space set pair composed of two search space sets with a link relationship including the search space set is configured by the network device, or the search space set identifier for the two search space sets The identity corresponding to the smaller set of search spaces.
  • the monitoring priority of the search space set determined based on the attribute information of the search space set satisfies at least one of the following:
  • the monitoring priority of the general search space set is higher than the monitoring priority of the terminal-specific search space set
  • the monitoring priority of the search space set that has a link relationship with other search space sets is higher than that of the search space set that does not have a link relationship with other search space sets;
  • the monitoring priority of the search space set configured with multiple transmission configuration indication states is higher than the monitoring priority of the search space set configured with only one transmission configuration indication state.
  • a device for monitoring a physical downlink control channel which is applied to a terminal, and the device for monitoring a physical downlink control channel includes:
  • a processing unit configured to respond to the terminal being configured with a first search space set and a second search space set having a link relationship, and determine a time domain that overlaps with a monitoring time of a second PDCCH candidate of the second search space set There are multiple PDCCH candidates in the position, and it is determined whether the first PDCCH candidate of the first search space set is monitored, wherein the first PDCCH candidate and the second PDCCH candidate have a link relationship; the monitoring unit is configured to be based on the The monitoring priority of the second PDCCH candidate among the plurality of PDCCH candidates is used to monitor the second PDCCH candidate.
  • the monitoring unit monitors the second PDCCH candidate based on the quasi-co-site QCL Type D attribute of the control resource set corresponding to the second search space set.
  • the monitoring unit determines that the second PDCCH candidate has the highest monitoring priority among the plurality of PDCCH candidates class.
  • the monitoring unit determines that the second PDCCH candidate has the lowest monitoring priority among the plurality of PDCCH candidates.
  • the monitoring priority of the second PDCCH candidate is determined based on the second search space set corresponding to the second PDCCH candidate.
  • the monitoring unit determines whether the first PDCCH candidate of the first search space set is monitored in the following manner: determine the monitoring priority of the first search space set, and determine the Whether the first PDCCH candidate of the first search space set is monitored.
  • the monitoring priority of the first search space set and/or the second search space set is determined based on attribute information of the search space set.
  • the attribute information of the search space set includes at least one of the following:
  • the index of the serving cell to which the search space set belongs the type of the search space set, the search space set identifier of the search space set, the link relationship information of the search space set, and the information including the search space set the identification of a pair of search space sets composed of the two search space sets of the link relation;
  • the type of the search space set includes a general search space set or a terminal-specific search space set; the link relationship information of the search space set includes that the search space set does not have a link relationship with any search space set, or the A set of search spaces has a link relationship with another set of search spaces.
  • the identification of the search space set pair composed of two search space sets with a link relationship including the search space set is configured by the network device, or the search space set identifier for the two search space sets The identity corresponding to the smaller set of search spaces.
  • the monitoring priority of the search space set determined based on the attribute information of the search space set satisfies at least one of the following:
  • the monitoring priority of the general search space set is higher than the monitoring priority of the terminal-specific search space set
  • the monitoring priority of the search space set that has a link relationship with other search space sets is higher than that of the search space set that does not have a link relationship with other search space sets;
  • the monitoring priority of the search space set configured with multiple transmission configuration indication states is higher than the monitoring priority of the search space set configured with only one transmission configuration indication state.
  • a device for monitoring a physical downlink control channel including:
  • processor ; memory for storing instructions executable by the processor;
  • the processor is configured to: execute the first aspect or the physical downlink control channel monitoring method described in any one of the first aspect.
  • a storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the terminal, the terminal can execute the first aspect or the first The physical downlink control channel monitoring method described in any one of the implementation manners of the aspect.
  • the terminal is configured with the first search space set and the second search space set having a link relationship
  • the second PDCCH candidate with the second search space set is determined
  • Fig. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.
  • Fig. 2A to Fig. 2C are flowcharts showing a PDCCH monitoring method according to an exemplary embodiment.
  • Fig. 3 is a flowchart showing a PDCCH monitoring method according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a PDCCH monitoring method according to an exemplary embodiment.
  • Fig. 5 is a flowchart showing a PDCCH monitoring method according to an exemplary embodiment.
  • Fig. 6 shows a block diagram of a PDCCH monitoring device according to an exemplary embodiment.
  • Fig. 7 is a block diagram showing a device for PDCCH monitoring according to an exemplary embodiment.
  • the wireless communication system includes a terminal and a network device.
  • the terminal is connected to the network device through wireless resources, and sends and receives data.
  • the wireless communication system shown in FIG. 1 is only for schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, etc. Not shown in Figure 1.
  • the embodiment of the present disclosure does not limit the number of network devices and the number of terminals included in the wireless communication system.
  • the wireless communication system in the embodiment of the present disclosure is a network that provides a wireless communication function.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency-division multiple access (single Carrier FDMA, SC-FDMA), carrier sense Multiple Access/Conflict Avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • single Carrier FDMA single Carrier FDMA
  • SC-FDMA carrier sense Multiple Access/Conflict Avoidance
  • Carrier Sense Multiple Access with Collision Avoidance Carrier Sense Multiple Access with Collision Avoidance
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G International: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio New Radio
  • the present disclosure sometimes simply refers to a wireless communication network as a network.
  • the wireless access network device may be: a base station, an evolved base station (evolved node B, eNB), a home base station, an access point (access point, AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay Node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be gNB in the NR system, or it can also be a component or a part of equipment that constitutes a base station wait.
  • the network device may also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • the network device may also be a vehicle-mounted device. It should be understood that in the embodiments of the present disclosure, no limitation is imposed on the specific technology and specific device form adopted by the network device.
  • terminals involved in this disclosure can also be referred to as terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc.
  • a device providing voice and/or data connectivity for example, a terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • examples of some terminals are: smart phones (Mobile Phone), pocket computers (Pocket Personal Computer, PPC), handheld computers, personal digital assistants (Personal Digital Assistant, PDA), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • V2X vehicle-to-everything
  • the terminal device may also be a vehicle-mounted device. It should be understood that the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal.
  • data transmission is performed between a network device and a terminal based on a beam.
  • the terminal in the beam-based data transmission process, the terminal can only use one beam to receive the PDCCH sent by the network device, so when the monitor occasions corresponding to multiple PDCCH candidates overlap, when multiple PDCCH candidates correspond to
  • the beam information of the CORESET is different, for example, when the QCL Type D is different, the terminal needs to determine a specified CORESET in this overlapping monitor occasion, and then use the QCL Type D corresponding to the specified CORESET to monitor the specified CORESET in this overlapping monitor occasion
  • the terminal in overlapping monitor occasions, can only use one QCL Type D to monitor the PDCCH, therefore, the terminal will not be able to receive the PDCCH monitored with different QCL Type D, which reduces the success rate of PDCCH transmission.
  • the terminal will support the use of multiple (typically 2) QCL Type Ds to receive multiple PDCCHs at the same time. Therefore, on overlapping monitor occasions, one or more CORESETs can be determined, allowing the terminal to use the one or more One or more QCL Type D corresponding to multiple CORESETs to monitor multiple PDCCHs on overlapping monitor occasions to improve the success rate of PDCCH reception.
  • a search space set (Search space set, SS set) with a link relationship can be configured for the terminal, and it is determined whether to select the QCL Type D of the CORESET corresponding to the SS set with a link relationship to monitor the PDCCH candidate of the overlapping time.
  • the two SS sets have a link relationship, which can be understood as different SS sets have candidate resources for PDCCH repetition transmission (PDCCH repetition).
  • two SS sets with a link relationship include the first SS set and the second SS set.
  • the first SS set includes the first PDCCH candidate
  • the second SS set includes the second PDCCH candidate.
  • the first PDCCH candidate in the first SS set and the second PDCCH candidate in the second SS set are used for PDCCH repetition.
  • Case 1 The first PDCCH candidate does not overlap with the PDCCH candidates of other SS sets, and the second PDCCH candidate overlaps with the PDCCH candidates of other SS sets.
  • Case 2 The first PDCCH candidate overlaps with the PDCCH candidates of other SS sets, and the second PDCCH candidate does not overlap with the PDCCH candidates of other SS sets.
  • Case 3 The first PDCCH candidate overlaps with the PDCCH candidates of the first SS set, and the second PDCCH candidate overlaps with the PDCCH candidates of the second SS set.
  • Case 3-1 The first SS set and the second SS set are the same.
  • Case 3-2 The first SS set and the second SS set are different.
  • the two PDCCH candidates (the first PDCCH candidate and the second PDCCH candidate) included in the two SS sets (the first SS set and the second SS set) that the terminal has a link relationship have a link relationship
  • the monitoring priority of the second PDCCH candidate in multiple PDCCH candidates can be determined based on whether the first PDCCH candidate is monitored or not monitored, and based on the second PDCCH candidate in multiple PDCCH The monitoring priority in the candidate is to monitor the second PDCCH candidate to determine whether the second PDCCH candidate is monitored.
  • the monitoring priority involved in the embodiments of the present disclosure refers to the priority to be monitored at overlapping time domain positions. It is understandable that the higher the monitoring priority, the greater the possibility of being monitored. The lower the monitoring priority, the less likely it is to be monitored.
  • the terminal may monitor the second PDCCH candidate based on the monitoring priority of the second PDCCH candidate among multiple PDCCH candidates when the first PDCCH candidate is monitored or not.
  • Fig. 2A is a flowchart of a PDCCH monitoring method according to an exemplary embodiment. As shown in Fig. 2A, the PDCCH monitoring method is used in a terminal and includes the following steps.
  • step S11a in response to the terminal being configured with the first SS set and the second SS set having a link relationship, and determining that there are multiple PDCCHs in the time domain position overlapping with the monitoring time of the second PDCCH candidate of the second SS set candidate, it is determined that the first PDCCH candidate of the first SS set is monitored.
  • step S12a the second PDCCH candidate is monitored based on the monitoring priority of the second PDCCH candidate among the plurality of PDCCH candidates.
  • Fig. 2B is a flow chart showing a PDCCH monitoring method according to an exemplary embodiment. As shown in Fig. 2B, the PDCCH monitoring method is used in a terminal and includes the following steps.
  • step S11b in response to the terminal being configured with the first SS set and the second SS set having a link relationship, and determining that there are multiple PDCCHs in the time domain position overlapping with the monitoring time of the second PDCCH candidate of the second SS set candidate, it is determined that the first PDCCH candidate of the first SS set has not been monitored.
  • step S12b the second PDCCH candidate is monitored based on the monitoring priority of the second PDCCH candidate among the plurality of PDCCH candidates.
  • the terminal may determine whether the second PDCCH candidate is monitored according to whether the first PDCCH candidate is monitored. That is, the terminal may first judge whether the first PDCCH candidate is monitored, and based on the judgment result of whether the first PDCCH candidate is monitored, determine whether the second PDCCH candidate is monitored.
  • Fig. 2C is a flow chart showing a PDCCH monitoring method according to an exemplary embodiment. As shown in Fig. 2C, the PDCCH monitoring method is used in a terminal and includes the following steps.
  • step S11c in response to the terminal being configured with the first SS set and the second SS set having a link relationship, and determining that there are multiple PDCCHs in the time domain position overlapping with the monitoring time of the second PDCCH candidate of the second SS set candidate, to determine whether the first PDCCH candidate of the first SS set is monitored.
  • step S12c in response to determining that the first PDCCH candidate of the first SS set is monitored or determining that the first PDCCH candidate of the first SS set is not monitored, based on the monitoring priority of the second PDCCH candidate among the plurality of PDCCH candidates, Monitor the second PDCCH candidate.
  • the first PDCCH candidate and the second PDCCH candidate have a link relationship.
  • the first PDCCH candidate and the second PDCCH candidate have a link relationship, and it can be understood that the first PDCCH candidate and the second PDCCH candidate are used for PDCCH repetition.
  • the temporal relationship between the first PDCCH candidate and the second PDCCH candidate may be that the first PDCCH candidate is earlier, or that the second PDCCH candidate is earlier, or that the time domains of the first PDCCH candidate and the second PDCCH candidate overlap.
  • the second PDCCH candidate is monitored based on the QCL Type D attribute of the CORESET corresponding to the second SS Set.
  • QCL Type D can be understood as a space receiving parameter, sometimes also called a beam.
  • the terminal determines one or more specified CORESETs, and monitors the specified CORESET and the PDCCH candidates of other CORESETs with the same QCL Type D as the specified CORESET at overlapping PDCCH monitoring occasions to improve the success rate of PDCCH reception.
  • the terminal determines that the first SS set and the second SS set are two SS sets with a link relationship, when the monitoring time of the second PDCCH candidate of the second SS set overlaps in the time domain of multiple SS sets
  • the terminal determines whether to monitor the second PDCCH candidate of the second SS set according to whether the first PDCCH candidate of the first SS set is monitored, that is, according to whether the first PDCCH candidate of the first SS set is monitored. Two PDCCH candidate monitoring priority among multiple PDCCH candidates.
  • the first PDCCH candidate and the second PDCCH candidate have a link relationship. Therefore, when the first PDCCH candidate of the first SS set is determined to be monitored, for the performance of PDCCH repetition, the second PDCCH Candidates also need to be monitored.
  • Fig. 3 is a flowchart showing a PDCCH monitoring method according to an exemplary embodiment. As shown in Fig. 3, the PDCCH monitoring method is used in a terminal and includes the following steps.
  • step S21 in response to determining that the first PDCCH candidate of the first SS set is monitored, it is determined that the second PDCCH candidate has the highest monitoring priority among the plurality of PDCCH candidates.
  • step S22 at the time domain position where the monitoring time of the second PDCCH candidate of the second SS set overlaps, use the second QCL Type D corresponding to the second SS set to monitor the PDCCH candidate.
  • the second PDCCH candidate in response to determining that the first PDCCH candidate of the first SS set is monitored, it is determined that the second PDCCH candidate has the highest monitoring priority among the multiple PDCCH candidates.
  • the second PDCCH candidate has the highest monitoring priority among multiple PDCCH candidates. It can be understood that the second PDCCH candidate of the second SS set needs to be monitored. Wherein, the second PDCCH candidate of the second SS set needs to be monitored, that is, in the overlapping time domain, and the second QCL Type D corresponding to the second SS set needs to be used to monitor the PDCCH candidate.
  • the PDCCH candidates monitored by the second QCL Type D corresponding to the second SS set include the PDCCH candidates of the second SS set, and the PDCCH candidates of other SS sets whose QCL Type D is the same as the second QCL Type D.
  • the second PDCCH candidate in response to determining that the first PDCCH candidate of the first SS set is monitored, it is determined that the second PDCCH candidate has the highest monitoring priority among the plurality of PDCCH candidates.
  • the second PDCCH candidate has the highest monitoring priority among multiple PDCCH candidates. It can be understood that the second PDCCH candidate of the second SS set needs to be monitored. But when there are multiple first PDCCH candidates to be monitored, and each first PDCCH candidate has a corresponding second PDCCH candidate, if the multiple second PDCCH candidates overlap in the time domain, it is necessary to further determine the multiple The monitoring priority of the second PDCCH candidate.
  • the method for further determining the monitoring priorities of the multiple second PDCCH candidates includes the following first and/or second items:
  • the first item determined according to the monitoring priorities of one or more first SS sets corresponding to multiple first PDCCH candidates.
  • the second PDCCH candidate corresponding to the first PDCCH candidate with the highest monitoring priority corresponding to the first SS set needs to be monitored.
  • the monitoring priority of the first SS set is determined according to the attribute information of the first SS set.
  • the second item determined according to the monitoring priorities of one or more second SS sets corresponding to multiple second PDCCH candidates.
  • the monitoring priority of the second SS set is determined according to the attribute information of the second SS set.
  • the second PDCCH candidate of the second SS set needs to be monitored, that is, in the overlapping time domain, and the second QCL Type D corresponding to the second SS set needs to be used to monitor the PDCCH candidate.
  • the PDCCH candidates monitored by the second QCL Type D corresponding to the second SS set include the PDCCH candidates of the second SS set, and the PDCCH candidates of other SS sets whose QCL Type D is the same as the second QCL Type D.
  • the first PDCCH candidate and the second PDCCH candidate have a link relationship.
  • the first PDCCH candidate of the first SS set is not monitored, even if the second PDCCH candidate is monitored, the performance of PDCCH repetition cannot be guaranteed, so the second PDCCH candidate does not need to be monitored again.
  • Fig. 4 is a flow chart showing a PDCCH monitoring method according to an exemplary embodiment. As shown in Fig. 4, the PDCCH monitoring method is used in a terminal and includes the following steps.
  • step S31 in response to determining that the first PDCCH candidate of the first SS set is not monitored, it is determined that the second PDCCH candidate has the lowest monitoring priority among the plurality of PDCCH candidates.
  • step S32 at the time domain position where the monitoring time of the second PDCCH candidate of the second SS set overlaps, there is no need to monitor the PDCCH candidate.
  • the second PDCCH candidate in response to determining that the first PDCCH candidate of the first SS set is not monitored, it is determined that the second PDCCH candidate has the lowest monitoring priority among the multiple PDCCH candidates.
  • the second PDCCH candidate has the lowest monitoring priority among multiple PDCCH candidates. It can be understood that the second PDCCH candidate of the second SS set does not need to be monitored. Among them, the second PDCCH candidate of the second SS set does not need to be monitored, that is, in the overlapping time domain, and the second QCL Type D corresponding to the second SS set does not need to be used to monitor the PDCCH candidate and QCL Type of the second SS set D is the PDCCH candidate of other SS set that is the same as the second QCL Type D.
  • the terminal determines the monitoring priority of the second PDCCH candidate in multiple PDCCH candidates according to whether the first PDCCH candidate is monitored, and then determines whether one or more specified CORESETs need to be determined, and in the overlapping PDCCH monitoring occasion to monitor the specified CORESET and the PDCCH candidates of other CORESETs with the same QCL Type D as the specified CORESET can improve the success rate of PDCCH reception.
  • determining whether the first PDCCH candidate is monitored is determined based on the monitoring priority of the first PDCCH candidate. Determine whether the second PDCCH candidate is monitored, based on the monitoring priority of the second PDCCH candidate.
  • the monitoring priority of the PDCCH candidate can be determined based on the attribute information of the SS set to which the PDCCH candidate belongs, and whether the PDCCH candidate is monitored based on the monitoring priority of the PDCCH candidate.
  • the following embodiments of the present disclosure do not distinguish between the first PDCCH candidate and the second PDCCH candidate, and describe the process of determining the monitoring priority of the PDCCH candidate. That is, the PDCCH candidate involved in the following embodiments may be the first PDCCH candidate or the second PDCCH candidate. It can be understood that the SS sets involved in the following embodiments do not distinguish between the first SS set corresponding to the first PDCCH candidate and the second SS set corresponding to the second PDCCH candidate. For the determination of the monitoring priority of the first PDCCH candidate, the involved SS set is the first SS set. For the determination of the monitoring priority of the second PDCCH candidate, the involved SS set is the second SS set.
  • Fig. 5 is a flow chart showing a PDCCH monitoring method according to an exemplary embodiment. As shown in Fig. 5, the PDCCH monitoring method is used in a terminal and includes the following steps.
  • step S41 the monitoring priority of the PDCCH candidate is determined based on the attribute information of the SS set to which the PDCCH candidate belongs.
  • step S42 it is determined whether the PDCCH candidate is monitored based on the monitoring priority of the PDCCH candidate.
  • the monitoring priority of the first SS set can be determined based on the attribute information of the first SS set, and the first PDCCH of the first SS set can be determined according to the monitoring priority of the first SS set Whether the candidate is monitored.
  • the monitoring priority of the second SS set may be determined based on the attribute information of the second SS set, and whether the second PDCCH candidate of the second SS set is determined according to the monitoring priority of the second SS set being monitored.
  • the attribute information of the SS set used to determine the monitoring priority of the PDCCH candidate mentioned above includes at least one of the following: the serving cell index (serving cell index) to which the SS set belongs, the type of the SS set, the SS set identifier (ID), and the SS set
  • the link relationship information of the SS set and the ID of the SS set pair (pair) composed of two SS sets with a link relationship including the SS set.
  • the terminal may be configured with one or more serving cells, and the serving cell is configured with a serving cell index.
  • the serving cell index to which the SS set belongs can be understood as the serving cell index corresponding to one or more serving cells configured on the terminal.
  • the type of SS set is used to indicate whether the SS set is a common search space set (Common Search space set, CSS set) or a terminal-specific search space set (UE-specific Search space set, USS set).
  • Common Search space set CSS set
  • UE-specific Search space set USS set
  • SS set ID can be understood as the sequence number of SS set.
  • SS set#0 has ID #0.
  • Link relationship information of SS set including SS set does not have a link relationship with any SS set, or SS set has a link relationship with another SS set.
  • the ID of the SS set pair can be configured by network devices such as base stations, or it can be the ID corresponding to the SS set with the smaller SS set ID among the two SS sets included in the SS set pair.
  • the CORESET corresponding to multiple PDCCH candidates that the terminal needs to monitor on overlapping PDCCH monitoring occasions may be configured with a CSS set, and the CSS set corresponds to a CSS set index (CSS set index).
  • the CORESET corresponding to multiple PDCCH candidates that the terminal needs to monitor on the overlapping PDCCH monitoring occasion can be configured with a USS set.
  • a USS set corresponds to a USS set index (USS set index).
  • USS set index USS set index
  • the ID of the SS set pair can also be understood as the index of the SS set pair.
  • the index of each CSS set pair in multiple sets of CSS set pairs with a link relationship is the index of the CSS set with a smaller CSS set index.
  • the CSS set is one of the two CSS sets with a link relationship. If two CSS sets with a link relationship are used as a CSS set pair, the index of the CSS set pair and the CSS The index of the smaller CSS set in the set pair is the same.
  • CSS sets with links are also treated as independent CSS sets, that is, the index is determined according to the CSS Set ID of the CSS set itself.
  • the index is determined according to the CSS Set ID of the CSS set itself.
  • the CSS set of the CORESET corresponding to the multiple PDCCH candidates that the terminal needs to monitor on the overlapping PDCCH monitoring occasion may be configured with one or more transmission configuration indication states (transmission configuration indication, TCI state).
  • TCI state transmission configuration indication
  • the monitoring priority is determined according to its own index. Or for a CSS set configured with multiple TCI states, its monitoring priority is higher than that of a CSS set configured with only one TCI state.
  • the TCI state of the CSS set is the TCI state of the CORESET associated with the CSS set.
  • the index of each USS set pair among multiple USS set pairs with a link relationship is the index of the USS set with a smaller USS set index.
  • the USS set is one of the two USS sets with a link relationship. If two USS sets with a link relationship are used as a USS set pair, the index of the USS set pair and the USS The index of the USS set with the smaller index in the set pair is the same. Or, the USS set with a link relationship is also treated as an independent USS set, that is, it is determined according to its own Set ID.
  • the index is determined according to its own Set ID.
  • the USS set of the CORESET corresponding to the multiple PDCCH candidates that the terminal needs to monitor on the overlapping PDCCH monitoring occasion is configured with one or more TCI states
  • CSS of multiple TCI states is configured. set, according to its own index to determine the monitoring priority. Or for a USS set configured with multiple TCI states, its monitoring priority is higher than that of a USS set configured with only one TCI state.
  • the TCI state of the USS set is the TCI state of the CORESET associated with the USS set.
  • the monitoring priority of the SS set determined based on the attribute information of the SS set may be determined in one or more of the following ways.
  • Method 1 The smaller the serving cell index to which the SS set belongs, the higher the monitoring priority of the SS set.
  • Method 2 The monitoring priority of CSS set is higher than that of USS set.
  • Method 3 The smaller the SS set ID of the SS set, the higher the monitoring priority of the SS set.
  • Method 4 The smaller the ID of the SS set pair corresponding to the SS set, the higher the monitoring priority of the SS set.
  • Method 5 The monitoring priority of the SS set that has a link relationship with other SS sets is higher than that of the SS set that does not have a link relationship with other SS sets.
  • Method 6 The monitoring priority of an SS set configured with multiple TCI states is higher than that of an SS set configured with only one TCI state.
  • the following examples when determining the monitoring priority of the SS set, the following examples may be included:
  • multiple sets of CSS sets with link relationships determine the monitoring priority based on the index of each set of CSS set pairs, and determine the index of the smaller CSS set in the CSS set pair in turn. The smaller the index of the CSS set pair, the monitoring priority The higher the level.
  • the monitoring priority of a CSS set that has a link relationship with other CSS sets is higher than that of a USS set that has a link relationship with other USS sets.
  • a CSS set configured with multiple TCI states has a higher monitoring priority than a CSS set configured with only one TCI state.
  • multiple groups of USS sets with a link relationship determine the monitoring priority based on the index of each USS set pair, and determine the index of the smaller USS set in the USS set pair in turn. The smaller the index of the USS set pair, the monitoring priority The higher the level.
  • the monitoring priority of a USS set that has a link relationship with other USS sets is higher than that of a USS set that has a link relationship with other USS sets.
  • the monitoring priority of the USS set linked with other USS sets is higher than that of the independent CSS set, and/or, the monitoring priority of the USS set linked with other USS sets is lower than that of the independent CSS set.
  • an independent CSS set refers to a CSS set that does not have a link relationship with other CSS sets
  • an independent USS set refers to a USS set that does not have a link relationship with other USS sets.
  • the monitoring priority of a USS set configured with multiple TCI states is higher than that of a USS set configured with one TCI state.
  • the monitoring priority of QCL Type D of CORESET configured with two TCI states is higher than that of QCL Type D of CORESET configured with one TCI state.
  • CSS#0 has the highest monitoring priority.
  • the index of the CSS set with a smaller index in the CSS set pair is greater than the index of the independent CSS set, and the monitoring priority of the CSS set pair is also higher than that of the independent CSS set.
  • the index of the USS set with a smaller index in the USS set pair is greater than the index of the independent USS set, and the monitoring priority of the USS set pair is also higher than that of the independent USS set.
  • the monitoring priority of the SS set determined based on the attribute information of the SS set, and based on the monitoring priority of the SS set, when monitoring the PDCCH candidate, one or more specified CORESETs can be determined, and In the overlapping PDCCH monitoring occasion, monitor the PDCCH of the specified CORESET and other CORESETs with the same QCL Type D as the specified CORESET. Or the terminal determines one or more specified QCL Type D, and monitors the PDCCH of the same CORESET as the specified QCL Type D in the overlapping PDCCH monitoring occasion.
  • the terminal can be configured with one or more serving cells.
  • this embodiment of the present disclosure may determine the specified CORESET based on the serving cell index.
  • the terminal In response to the terminal being configured with a serving cell, among the CORESETs corresponding to multiple PDCCH candidates, determine whether there is a CORESET containing CSS set. If there is a CORESET containing CSS set, then the specified CORESET is determined based on the index of the CORESET containing CSS set. If there is no CORESET including CSS set, then determine the specified CORESET based on the index of CORESET including USS set.
  • the terminal In response to the terminal being configured with a plurality of serving cells, among the CORESETs corresponding to a plurality of PDCCH candidates, it is determined whether there is a CORESET containing a CSS set. If there is a CORESET containing CSS set, select the serving cell with the smallest serving cell index in the CORESET containing CSS set, and determine the CORESET corresponding to the CSS set with the smallest CSS set index in the serving cell with the smallest serving cell index as the specified CORESET , and/or determine the CORESET corresponding to the CSS set that has a link relationship with other CSS sets in the serving cell with the smallest serving cell index as the designated CORESET.
  • the PDCCH monitoring method determines that when multiple PDCCH candidates overlap at the monitor occasion, one or more QCL Type Ds corresponding to one or more CORESETs are determined according to whether the PDCCH candidates linked to it are monitored, and the monitor is removed. Overlapping the PDCCH on occasion can improve the success rate of PDCCH repetition reception,
  • the various implementations/embodiments mentioned above in the embodiments of the present disclosure are applicable to determining whether the first PDCCH candidate is monitored, and are also applicable to determining whether the second PDCCH candidate is monitored.
  • the embodiment for determining whether the first PDCCH candidate is monitored may be the same as or different from the embodiment for determining whether the second PDCCH candidate is monitored, that is, the method for determining the monitoring priority can be used independently.
  • an embodiment of the present disclosure further provides a PDCCH monitoring device.
  • the PDCCH monitoring apparatus provided in the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for performing various functions.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 6 is a block diagram of a PDCCH monitoring device according to an exemplary embodiment.
  • a PDCCH monitoring device 100 includes a processing unit 101 and a monitoring unit 102 .
  • the processing unit 101 is configured to respond to the terminal being configured with the first SS set and the second SS set with a link relationship, and determine that there are multiple time domain positions overlapping with the monitoring time of the second PDCCH candidate of the second SS set A PDCCH candidate to determine whether the first PDCCH candidate of the first SS set is monitored, wherein the first PDCCH candidate and the second PDCCH candidate have a link relationship; the monitoring unit 102 is configured to be based on the second PDCCH candidate in multiple PDCCH candidates In the monitoring priority, monitor the second PDCCH candidate.
  • the monitoring unit 102 monitors the second PDCCH candidate based on the quasi-co-site QCL Type D attribute of the control resource set corresponding to the second SS set.
  • the monitoring unit 102 determines that the second PDCCH candidate has the highest monitoring priority among the multiple PDCCH candidates.
  • the monitoring unit 102 determines that the second PDCCH candidate has the lowest monitoring priority among the multiple PDCCH candidates.
  • the monitoring priority of the second PDCCH candidate is determined based on the second SS set corresponding to the second PDCCH candidate.
  • the monitoring unit 102 determines whether the first PDCCH candidate of the first SS set is monitored in the following manner: determine the monitoring priority of the first SS set, and determine the first PDCCH candidate of the first SS set according to the monitoring priority whether to be monitored.
  • the monitoring priority of the first SS set and/or the second SS set is determined based on attribute information of the SS set.
  • the attribute information of the SS set includes at least one of the following:
  • the serving cell index to which the SS set belongs the type of the SS set, the SS set identifier of the SS set, the link relationship information of the SS set, and the identifier of the SS set pair composed of two SS sets with a link relationship including the SS set;
  • the type of SS set includes CSS set or USS set;
  • the link relationship information of SS set includes that SS set does not have a link relationship with any SS set, or that SS set has a link relationship with another SS set.
  • the identification of the SS set pair composed of two SS sets with a link relationship including the SS set is the configuration of the network device, or the identification corresponding to the SS set with the smaller SS set identification in the two SS sets .
  • the monitoring priority of the SS set determined based on the attribute information of the SS set satisfies at least one of the following:
  • the monitoring priority of CSS set is higher than that of USS set
  • the monitoring priority of an SS set that has a link relationship with other SS sets is higher than that of an SS set that does not have a link relationship with other SS sets;
  • the monitoring priority of an SS set configured with multiple TCI states is higher than that of an SS set configured with only one TCI state.
  • Fig. 7 is a block diagram of an apparatus 200 for PDCCH monitoring according to an exemplary embodiment.
  • the apparatus 200 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • apparatus 200 may include one or more of the following components: processing component 202, memory 204, power component 206, multimedia component 208, audio component 210, input/output (I/O) interface 212, sensor component 214, and communication component 216 .
  • the processing component 202 generally controls the overall operations of the device 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 202 may include one or more processors 220 to execute instructions to complete all or part of the steps of the above method.
  • processing component 202 may include one or more modules that facilitate interaction between processing component 202 and other components.
  • processing component 202 may include a multimedia module to facilitate interaction between multimedia component 208 and processing component 202 .
  • the memory 204 is configured to store various types of data to support operations at the device 200 . Examples of such data include instructions for any application or method operating on device 200, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 204 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power component 206 provides power to various components of the device 200 .
  • Power components 206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 200 .
  • the multimedia component 208 includes a screen that provides an output interface between the device 200 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action.
  • the multimedia component 208 includes a front camera and/or a rear camera. When the device 200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 210 is configured to output and/or input audio signals.
  • the audio component 210 includes a microphone (MIC), which is configured to receive external audio signals when the device 200 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 204 or sent via communication component 216 .
  • the audio component 210 also includes a speaker for outputting audio signals.
  • the I/O interface 212 provides an interface between the processing component 202 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor assembly 214 includes one or more sensors for providing various aspects of status assessment for device 200 .
  • the sensor component 214 can detect the open/closed state of the device 200, the relative positioning of components, such as the display and keypad of the device 200, and the sensor component 214 can also detect a change in the position of the device 200 or a component of the device 200 , the presence or absence of user contact with the device 200 , the device 200 orientation or acceleration/deceleration and the temperature change of the device 200 .
  • the sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 214 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 216 is configured to facilitate wired or wireless communication between the apparatus 200 and other devices.
  • the device 200 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 216 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wideband
  • Bluetooth Bluetooth
  • apparatus 200 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronically specified element implementation for performing the methods described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronically specified element implementation for performing the methods described above.
  • non-transitory computer-readable storage medium including instructions, such as the memory 204 including instructions, which can be executed by the processor 220 of the device 200 to implement the above method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • “plurality” in the present disclosure refers to two or more, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • the singular forms “a”, “said” and “the” are also intended to include the plural unless the context clearly dictates otherwise.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not imply a specific order or degree of importance. In fact, expressions such as “first” and “second” can be used interchangeably.
  • first information may also be called second information, and similarly, second information may also be called first information.

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Abstract

本公开是关于一种物理下行控制信道监测方法、装置及存储介质。物理下行控制信道监测方法，应用于终端，所述物理下行控制信道监测方法包括：响应于所述终端被配置了具有链接关系的第一搜索空间集和第二搜索空间集，并确定与第二搜索空间集的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate，确定第一搜索空间集的第一PDCCH candidate是否被监测，其中，所述第一PDCCH candidate和所述第二PDCCH candidate具有链接关系。通过本公开能够提高PDCCH接收成功率。

Description

物理下行控制信道监测方法、装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及物理下行控制信道监测方法、装置及存储介质。
背景技术
在新无线技术(New Radio，NR)中，例如通信频段在frequency range 2时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束(beam)的发送和接收。
相关技术中，由于考虑终端只能用一个波束来接收网络设备发送的物理下行控制信道(physical downlink control channel，PDCCH)，所以在多个PDCCH候选资源(PDCCH candidate)对应的监测时域位置(monitor occasion)重叠时，当多个PDCCH candidate对应的控制资源集(Control Resource Set，CORESET)的准共址(quasi-colocation，QCL)波束信息不同时，例如，QCL类型(Type)D不同时，那么终端在这个重叠的monitor occasion需要确定一个指定的CORESET，然后使用这个指定的CORESET对应的QCL Type D在这个重叠的monitor occasion监测该指定的CORESET对应的PDCCH，以及与该指定的CORESET的QCL Type D相同的其它CORESET对应的PDCCH。
由于在重叠的monitor occasion，终端只能使用一个QCL Type D监测PDCCH，故，终端将无法接收使用不同QCL Type D进行PDCCH的监测，即降低了PDCCH传输成功率。Rel-17中，终端将支持使用多个(典型值为2个)QCL Type D同时接收多个PDCCH，所以在重叠的monitor occasion上，需要确定一个或多个CORESET，让终端使用该一个或多个CORESET对应的QCL Type D去监测重叠的monitor occasion上的多个PDCCH。然而，如何确定用于监测PDCCH的一个或多个CORESET，目前没有解决方法。
发明内容
为克服相关技术中存在的问题，本公开提供一种物理下行控制信道监测方法、装置及存储介质。
根据本公开实施例的第一方面，提供一种物理下行控制信道监测方法，应用于终端，所述物理下行控制信道监测方法包括：
响应于所述终端被配置了具有链接关系的第一搜索空间集和第二搜索空间集，并确定与第二搜索空间集的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate，确定第一搜索空间集的第一PDCCH candidate是否被监测，其中，所述第一PDCCH candidate和所述第二PDCCH candidate具有链接关系；
基于所述第二PDCCH candidate在所述多个PDCCH candidate中的监测优先级，监测 所述第二PDCCH candidate。
一种实施方式中，监测所述第二PDCCH candidate，包括：
基于第二搜索空间集对应的控制资源集的准共站址QCL Type D属性，监测所述第二PDCCH candidate。
一种实施方式中，响应于确定第一搜索空间集的第一PDCCH candidate被监测，所述第二PDCCH candidate在所述多个PDCCH candidate中具有最高的监测优先级。
一种实施方式中，响应于确定第一搜索空间集的第一PDCCH candidate未被监测，所述第二PDCCH candidate在所述多个PDCCH candidate中具有最低的监测优先级。
一种实施方式中，所述第二PDCCH candidate的监测优先级基于所述第二PDCCH candidate对应的第二搜索空间集确定。
一种实施方式中，确定所述第一搜索空间集的第一PDCCH candidate是否被监测，包括：确定第一搜索空间集的监测优先级，根据所述监测优先级确定所述第一搜索空间集的第一PDCCH candidate是否被监测。
一种实施方式中，第一搜索空间集和/或第二搜索空间集的监测优先级，基于搜索空间集的属性信息确定。
一种实施方式中，所述搜索空间集的属性信息包括以下至少一项：
所述搜索空间集所属的服务小区索引、所述搜索空间集的类型、所述搜索空间集的搜索空间集标识、所述搜索空间集的链接关系信息，包括所述搜索空间集在内的具有链接关系的两个搜索空间集组成的搜索空间集对的标识；
其中，所述搜索空间集的类型包括通用搜索空间集或终端特定搜索空间集；所述搜索空间集的链接关系信息包括所述搜索空间集不与任何一个搜索空间集具有链接关系，或所述搜索空间集与另一个搜索空间集具有链接关系。
一种实施方式中，包括所述搜索空间集在内的具有链接关系的两个搜索空间集组成的搜索空间集对的标识为网络设备配置，或为所述两个搜索空间集中搜索空间集标识较小的搜索空间集对应的标识。
一种实施方式中，基于搜索空间集的属性信息确定的搜索空间集的监测优先级满足如下至少一项：
搜索空间集所属的服务小区索引越小，监测优先级越高；
通用搜索空间集的监测优先级高于终端特定搜索空间集的监测优先级；
搜索空间集的搜索空间集标识越小，监测优先级越高；
搜索空间集对应的搜索空间集对的标识越小，监测优先级越高；
与其它搜索空间集具有链接关系的搜索空间集的监测优先级高于不与其它搜索空间集具有链接关系的搜索空间集；
配置了多个传输配置指示状态的搜索空间集的监测优先级高于只配置了一个传输配置指示状态的搜索空间集的监测优先级。
根据本公开实施例第二方面，提供一种物理下行控制信道监测装置，应用于终端，所述物理下行控制信道监测装置包括：
处理单元，被配置为响应于所述终端被配置了具有链接关系的第一搜索空间集和第二搜索空间集，并确定与第二搜索空间集的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate，确定第一搜索空间集的第一PDCCH candidate是否被监测，其中，所述第一PDCCH candidate和所述第二PDCCH candidate具有链接关系；监测单元，被配置为基于所述第二PDCCH candidate在所述多个PDCCH candidate中的监测优先级，监测所述第二PDCCH candidate。
一种实施方式中，监测单元基于第二搜索空间集对应的控制资源集的准共站址QCL Type D属性，监测所述第二PDCCH candidate。
一种实施方式中，响应于所述处理单元确定第一搜索空间集的第一PDCCH candidate被监测，所述监测单元确定所述第二PDCCH candidate在所述多个PDCCH candidate中具有最高的监测优先级。
一种实施方式中，响应于确定第一搜索空间集的第一PDCCH candidate未被监测，所述监测单元确定所述第二PDCCH candidate在所述多个PDCCH candidate中具有最低的监测优先级。
一种实施方式中，所述第二PDCCH candidate的监测优先级基于所述第二PDCCH candidate对应的第二搜索空间集确定。
一种实施方式中，所述监测单元采用如下方式确定所述第一搜索空间集的第一PDCCH candidate是否被监测：确定第一搜索空间集的监测优先级，根据所述监测优先级确定所述第一搜索空间集的第一PDCCH candidate是否被监测。
一种实施方式中，第一搜索空间集和/或第二搜索空间集的监测优先级，基于搜索空间集的属性信息确定。
一种实施方式中，所述搜索空间集的属性信息包括以下至少一项：
所述搜索空间集所属的服务小区索引、所述搜索空间集的类型、所述搜索空间集的搜索空间集标识、所述搜索空间集的链接关系信息，包括所述搜索空间集在内的具有链接关系的两个搜索空间集组成的搜索空间集对的标识；
其中，所述搜索空间集的类型包括通用搜索空间集或终端特定搜索空间集；所述搜索空间集的链接关系信息包括所述搜索空间集不与任何一个搜索空间集具有链接关系，或所述搜索空间集与另一个搜索空间集具有链接关系。
一种实施方式中，包括所述搜索空间集在内的具有链接关系的两个搜索空间集组成的搜索空间集对的标识为网络设备配置，或为所述两个搜索空间集中搜索空间集标识较小的搜索空间集对应的标识。
一种实施方式中，基于搜索空间集的属性信息确定的搜索空间集的监测优先级满足如下至少一项：
搜索空间集所属的服务小区索引越小，监测优先级越高；
通用搜索空间集的监测优先级高于终端特定搜索空间集的监测优先级；
搜索空间集的搜索空间集标识越小，监测优先级越高；
搜索空间集对应的搜索空间集对的标识越小，监测优先级越高；
与其它搜索空间集具有链接关系的搜索空间集的监测优先级高于不与其它搜索空间集具有链接关系的搜索空间集；
配置了多个传输配置指示状态的搜索空间集的监测优先级高于只配置了一个传输配置指示状态的搜索空间集的监测优先级。
根据本公开实施例第三方面，提供一种物理下行控制信道监测装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第一方面或者第一方面任意一项所述的物理下行控制信道监测方法。
根据本公开实施例第四方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行第一方面或者第一方面任意一种实施方式中所述的物理下行控制信道监测方法。
本公开的实施例提供的技术方案可以包括以下有益效果：在终端被配置了具有链接关系的第一搜索空间集和第二搜索空间集，并且确定与第二搜索空间集的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate的情况下，确定与第二搜索空间集具有链接关系的第一搜索空间集的第一PDCCH candidate是否被监测，并基于第二PDCCH candidate在多个PDCCH candidate中的监测优先级，监测第二PDCCH candidate，提高PDCCH接收成功率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种无线通信系统示意图。
图2A至图2C是根据一示例性实施例示出的一种PDCCH监测方法的流程图。
图3是根据一示例性实施例示出的一种PDCCH监测方法的流程图。
图4是根据一示例性实施例示出的一种PDCCH监测方法的流程图。
图5是根据一示例性实施例示出的一种PDCCH监测方法的流程图。
图6根据一示例性实施例示出的一种PDCCH监测装置的框图。
图7是根据一示例性实施例示出的一种用于PDCCH监测的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。
本公开实施例提供的PDCCH监测方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括终端和网络设备。终端通过无线资源与网络设备相连接，并进行数据的发送与接收。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数目和终端数目不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信 网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，eNB)、家庭基站、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 point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
本公开中网络设备与终端之间基于波束进行数据传输。在Rel-15/16中，基于波束进行数据传输过程中，终端只能用一个波束来接收网络设备发送的PDCCH，所以在多个PDCCH candidate对应的monitor occasion重叠时，当多个PDCCH candidate对应的CORESET的波束信息不同时，例如，QCL Type D不同时，那么终端在这个重叠的monitor occasion需要确定一个指定的CORESET，然后使用这个指定的CORESET对应的QCL Type D在这个重叠的monitor occasion监测该指定的CORESET对应的PDCCH以及与该指定的CORESET的QCL Type D相同的其它CORESET对应的PDCCH。即，在重叠的monitor occasion，终端只能使用一个QCL Type D监测PDCCH，故，终端将无法接收使用不同QCL Type D进行监测的PDCCH，即降低了PDCCH传输成功率。Rel-17中，终端将支持使用多个(典型值为2个)QCL Type D同时接收多个PDCCH，故，在重叠的monitor occasion上，可以确定一个或多个CORESET，让终端使用该一个或多个CORESET对应的一个或多个QCL Type D去监测重叠的monitor occasion上的多个PDCCH，以提高PDCCH的接收成功率。
相关技术中，可以为终端配置具有链接关系的搜索空间集(Search space set，SS set)，并确定是否选择该具有链接关系的SS set对应的CORESET的QCL Type D来监测重叠时 间的PDCCH candidate。其中，两个SS set具有链接关系，可以理解为是不同SS set具有用于PDCCH重复传输(PDCCH repetition)的候选资源。比如，具有链接关系的两个SS set中包括第一SS set和第二SS set。第一SS set中包括第一PDCCH candidate，第二SS set中包括第二PDCCH candidate。第一SS set中的第一PDCCH candidate和第二SS set中的第二PDCCH candidate用于PDCCH repetition。
其中，当两个具有链接关系的第一SS set和第二SS set采用时分复用(time-division multiplexing，TDM)的方式时，由于第一PDCCH candidate和第二PDCCH candidate的时间不同，有可能出现以下几种情况：
·情况1：第一PDCCH candidate没有和其它SS set的PDCCH candidate重叠，第二PDCCH candidate和其它SS set的PDCCH candidate重叠。
·情况2：第一PDCCH candidate和其它SS set的PDCCH candidate重叠，第二PDCCH candidate没和其它SS set的PDCCH candidate重叠。
·情况3：第一PDCCH candidate和第一SS set集合的PDCCH candidate重叠，第二PDCCH candidate和第二SS set集合的PDCCH candidate重叠。
针对情况3进一步存在如下情况：
·情况3-1：第一SS set集合和第二SS set集合相同。
·情况3-2：第一SS set集合和第二SS set集合不同。
针对以上各情况，当第二SS set的第二PDCCH candidate的监测时间上有多个SS set的时域重叠的PDCCH candidate时，第二PDCCH candidate是否需要监测，是需要进一步优化的问题。
本公开实施例中，当终端具有链接关系的两个SS set(第一SS set和第二SS set)中包括的两个PDCCH candidate(第一PDCCH candidate和第二PDCCH candidate)具有链接关系的情况下，若确定第二PDCCH candidate监测时间重叠的时域位置上存在多个PDCCH candidate，则确定第一PDCCH candidate是否被监测，并确定第二PDCCH candidate是否被监测。
一种实施方式中，本公开实施例中，可以基于第一PDCCH candidate被监测或未被监测，确定第二PDCCH candidate在多个PDCCH candidate中的监测优先级，基于第二PDCCH candidate在多个PDCCH candidate中的监测优先级，监测第二PDCCH candidate，以确定第二PDCCH candidate是否被监测。
其中，本公开实施例涉及的监测优先级是指在重叠的时域位置上被监测的优先级。可以理解的是，监测优先级越高，被监测的可能性就越大。监测优先级越低，被监测的可能 性就越小。
本公开实施例一种实施方式中，终端可以在第一PDCCH candidate被监测或未被监测的情况下，基于第二PDCCH candidate在多个PDCCH candidate中的监测优先级，监测第二PDCCH candidate。
图2A是根据一示例性实施例示出的一种PDCCH监测方法的流程图，如图2A所示，PDCCH监测方法用于终端中，包括以下步骤。
在步骤S11a中，响应于终端被配置了具有链接关系的第一SS set和第二SS set，并确定与第二SS set的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate，确定第一SS set的第一PDCCH candidate被监测。
在步骤S12a中，基于第二PDCCH candidate在多个PDCCH candidate中的监测优先级，监测第二PDCCH candidate。
图2B是根据一示例性实施例示出的一种PDCCH监测方法的流程图，如图2B所示，PDCCH监测方法用于终端中，包括以下步骤。
在步骤S11b中，响应于终端被配置了具有链接关系的第一SS set和第二SS set，并确定与第二SS set的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate，确定第一SS set的第一PDCCH candidate未被监测。
在步骤S12b中，基于第二PDCCH candidate在多个PDCCH candidate中的监测优先级，监测第二PDCCH candidate。
本公开实施例又一种实施方式中，终端可以根据第一PDCCH candidate是否被监测，来确定第二PDCCH candidate是否被监测。即，终端可以先行进行第一PDCCH candidate是否被监测的判断，并基于第一PDCCH candidate是否被监测的判断结果，进行第二PDCCH candidate是否被监测的确定。
图2C是根据一示例性实施例示出的一种PDCCH监测方法的流程图，如图2C所示，PDCCH监测方法用于终端中，包括以下步骤。
在步骤S11c中，响应于终端被配置了具有链接关系的第一SS set和第二SS set，并确定与第二SS set的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate，确定第一SS set的第一PDCCH candidate是否被监测。
在步骤S12c中，响应于确定第一SS set的第一PDCCH candidate被监测或确定第一SS set的第一PDCCH candidate未被监测，基于第二PDCCH candidate在多个PDCCH candidate中的监测优先级，监测第二PDCCH candidate。
可以理解的是，本公开上述图2A至图2C涉及的实施方式中，第一PDCCH candidate 和第二PDCCH candidate具有链接关系。本公开实施例中，第一PDCCH candidate和第二PDCCH candidate具有链接关系，可以理解为是第一PDCCH candidate和第二PDCCH candidate用于PDCCH repetition。其中，第一PDCCH candidate和第二PDCCH candidate时间前后关系可以是第一PDCCH candidate靠前，也可以是第二PDCCH candidate靠前，或者第一PDCCH candidate和第二PDCCH candidate时域重叠。
本公开实施例中主要以第一PDCCH candidate相对第二PDCCH candidate在时间上靠前为例进行说明。本公开实施例中，基于第二SS Set对应的CORESET的QCL Type D属性，监测第二PDCCH candidate。
其中，QCL Type D可以理解为是空间接收参数，有时也被称为波束。
一种实施方式中，当终端的两个PDCCH candidate具有链接关系时，在第二PDCCH candidate的重叠的PDCCH monitoring occasion上需要监听的多个PDCCH candidate对应的CORESET配置的QCL Type D相同或不同时，终端确定一个或多个指定的CORESET，并在重叠的PDCCH monitoring occasion去监测指定的CORESET以及与指定的CORESET的QCL Type D相同的其它CORESET的PDCCH candidate，提高PDCCH接收成功率。
本公开实施例中，终端确定第一SS set和第二SS set为具有链接关系的两个SS set，当第二SS set的第二PDCCH candidate的监测时间上有多个SS set的时域重叠的PDCCH candidate时，终端根据第一SS set的第一PDCCH candidate是否被监测来确定是否监测第二SS set的第二PDCCH candidate，即根据第一SS set的第一PDCCH candidate是否被监测来设置第二PDCCH candidate在多个PDCCH candidate中的监测优先级。
其中一种实施方式中，第一PDCCH candidate和第二PDCCH candidate具有链接关系，故，在确定了第一SS set的第一PDCCH candidate被监测的情况下，为了PDCCH repetition的性能，那么第二PDCCH candidate也需要监测。
图3是根据一示例性实施例示出的一种PDCCH监测方法的流程图，如图3所示，PDCCH监测方法用于终端中，包括以下步骤。
在步骤S21中，响应于确定第一SS set的第一PDCCH candidate被监测，确定第二PDCCH candidate在多个PDCCH candidate中具有最高的监测优先级。
在步骤S22中，在第二SS set的第二PDCCH candidate的监测时间重叠的时域位置上，使用第二SS set对应的第二QCL Type D监测PDCCH candidate。
本公开实施例中，响应于确定第一SS set的第一PDCCH candidate被监测，确定第二PDCCH candidate在多个PDCCH candidate中具有最高的监测优先级。第二PDCCH candidate在多个PDCCH candidate中具有最高的监测优先级可以理解为是第二SS set的第 二PDCCH candidate需要被监测。其中，第二SS set的第二PDCCH candidate需要被监测即在重叠的时域上，需要使用第二SS set对应的第二QCL Type D来监测PDCCH candidate。其中，使用第二SS set对应的第二QCL Type D来监测的PDCCH candidate包括第二SS set的PDCCH candidate，以及QCL Type D与第二QCL Type D相同的其它SS set的PDCCH candidate。
本公开的又一实施例中，响应于确定第一SS set的第一PDCCH candidate被监测，确定第二PDCCH candidate在多个PDCCH candidate中具有最高的监测优先级。第二PDCCH candidate在多个PDCCH candidate中具有最高的监测优先级可以理解为是第二SS set的第二PDCCH candidate需要被监测。但是当存在多个第一PDCCH candidate被监测时，并且每个第一PDCCH candidate都有一个对应的第二PDCCH candidate，若这多个第二PDCCH candidate在时域重叠，则需要进一步确定这多个第二PDCCH candidate的监测优先级。其中，进一步确定这多个第二PDCCH candidate的监测优先级的方法包括以下第一项和/或第二项：
第一项：根据多个第一PDCCH candidate对应的一个或多个第一SS set的监测优先级来确定。其中需要监测对应第一SS set的监测优先级最大的第一PDCCH candidate对应的第二PDCCH candidate。而第一SS set的监测优先级根据第一SS set的属性信息确定。
第二项：根据多个第二PDCCH candidate对应的一个或多个第二SS set的监测优先级来确定。其中第二SS set的监测优先级根据第二SS set的属性信息确定。其中，第二SS set的第二PDCCH candidate需要被监测即在重叠的时域上，需要使用第二SS set对应的第二QCL Type D来监测PDCCH candidate。其中，使用第二SS set对应的第二QCL Type D来监测的PDCCH candidate包括第二SS set的PDCCH candidate，以及QCL Type D与第二QCL Type D相同的其它SS set的PDCCH candidate。
本公开实施例另一种实施方式中，第一PDCCH candidate和第二PDCCH candidate具有链接关系。在确定了第一SS set的第一PDCCH candidate未被监测的情况下，即使第二PDCCH candidate被监测，也不能保证PDCCH repetition的性能，故，第二PDCCH candidate也无需再被监测。
图4是根据一示例性实施例示出的一种PDCCH监测方法的流程图，如图4所示，PDCCH监测方法用于终端中，包括以下步骤。
在步骤S31中，响应于确定第一SS set的第一PDCCH candidate未被监测，确定第二PDCCH candidate在多个PDCCH candidate中具有最低的监测优先级。
在步骤S32中，在第二SS set的第二PDCCH candidate的监测时间重叠的时域位置上， 无需监测PDCCH candidate。
本公开实施例中，响应于确定第一SS set的第一PDCCH candidate未被监测，确定第二PDCCH candidate在多个PDCCH candidate中具有最低的监测优先级。第二PDCCH candidate在多个PDCCH candidate中具有最低的监测优先级可以理解为是第二SS set的第二PDCCH candidate不需要被监测。其中，第二SS set的第二PDCCH candidate不需要被监测即在重叠的时域上，不需要使用第二SS set对应的第二QCL Type D来监测第二SS set的PDCCH candidate，以及QCL Type D与第二QCL Type D相同的其它SS set的PDCCH candidate。
本公开实施例中，终端根据第一PDCCH candidate是否被监测，来确定第二PDCCH candidate在多个PDCCH candidate中的监测优先级，进而确定是否需要确定一个或多个指定的CORESET，并在重叠的PDCCH monitoring occasion去监测指定的CORESET以及与指定的CORESET的QCL Type D相同的其它CORESET的PDCCH candidate，能够提高PDCCH接收成功率。
本公开实施例又一种实施方式中，确定第一PDCCH candidate是否被监测，基于第一PDCCH candidate的监测优先级确定。确定第二PDCCH candidate是否被监测，基于第二PDCCH candidate的监测优先级确定。在确定PDCCH candidate是否被监测时，可以基于PDCCH candidate所属的SS set的属性信息确定PDCCH candidate的监测优先级，并基于PDCCH candidate的监测优先级确定PDCCH candidate是否被监测。
为描述方便，本公开实施例以下不区分第一PDCCH candidate和第二PDCCH candidate，对确定PDCCH candidate的监测优先级的过程进行说明。即，以下实施例中涉及的PDCCH candidate可以是第一PDCCH candidate，也可以是第二PDCCH candidate。可以理解的是，下述实施例中涉及的SS set也未区分第一PDCCH candidate对应的第一SS set，以及第二PDCCH candidate对应的第二SS set。对于第一PDCCH candidate的监测优先级确定而言，涉及的SS set即是第一SS set。对于第二PDCCH candidate的监测优先级确定而言，涉及的SS set即是第二SS set。
图5是根据一示例性实施例示出的一种PDCCH监测方法的流程图，如图5所示，PDCCH监测方法用于终端中，包括以下步骤。
在步骤S41中，基于PDCCH candidate所属的SS set的属性信息确定PDCCH candidate的监测优先级。
在步骤S42中，基于PDCCH candidate的监测优先级确定PDCCH candidate是否被监测。
其中，本公开实施例中需要确定第一PDCCH candidate的监测优先级和/或第二PDCCH candidate的监测优先级。
比如，在确定第一PDCCH candidate是否被监测时，可以基于第一SS set的属性信息确定第一SS set的监测优先级，根据第一SS set的监测优先级确定第一SS set的第一PDCCH candidate是否被监测。
在确定第二PDCCH candidate是否被监测时，可以基于第二SS set的属性信息确定第二SS set的监测优先级，根据第二SS set的监测优先级确定第二SS set的第二PDCCH candidate是否被监测。上述涉及的用于确定PDCCH candidate监测优先级的SS set的属性信息包括以下至少一项：SS set所属的服务小区索引(serving cell index)、SS set的类型、SS set标识(ID)、SS set的链接关系信息以及包括SS set在内的具有链接关系的两个SS set组成的SS set对(pair)的ID。
其中，终端可能被配置一个或多个serving cell，serving cell配置有serving cell index。SS set所属的serving cell index，可以理解为是终端被配置的一个或多个serving cell对应的serving cell index。
SS set的类型用于指示SS set是通用搜索空间集(Common Search space set，CSS set)还是终端特定搜索空间集(UE-specific Search space set，USS set)。
SS set ID，可以理解为是SS set的顺序编号。例如，SS set#0的ID为#0。
SS set的链接关系信息，包括SS set不与任何一个SS set具有链接关系，或SS set与另一个SS set具有链接关系。
SS set pair的ID可以是基站等网络设备配置的，也可以是SS set pair中包括的两个SS set中SS set ID较小的SS set对应的ID。
本公开实施例中，终端在重叠的PDCCH monitoring occasion上需要监听的多个PDCCH candidate对应的CORESET可以被配置有CSS set，CSS set对应有CSS set索引(CSS set index)。终端在重叠的PDCCH monitoring occasion上需要监听的多个PDCCH candidate对应的CORESET可以被配置有USS set。USS set对应有USS set索引(USS set index)。其中，SS set pair的ID也可以理解为是SS set pair的index。
一示例中，多组具有链接关系的CSS set pair中每组CSS set pair的index为CSS set index较小的CSS set的index。本公开一示例中，对于CSS set是为具有链接关系的两个CSS set中的其中一个CSS set，若将两个具有链接关系的CSS set作为一个CSS set pair，这个CSS set pair的index与CSS set pair内index较小的CSS set的index相同。或，具有链接关系的CSS set也看成独立的CSS set来对待，即根据CSS set自身的CSS Set ID来确 定index。
进一步的，对于不具有链接关系的CSS set，根据CSS set自身的CSS Set ID来确定index。
其中，本公开实施例中，终端在重叠的PDCCH monitoring occasion上需要监听的多个PDCCH candidate对应的CORESET的CSS set可以被配置一个或多个传输配置指示状态(transmission configuration indication，TCI state)。对于被配置了多个TCI state的CSS set，根据其自身的index来确定监测优先级。或对于配置了多个TCI state的CSS set，其监测优先级高于只配置了一个TCI state的CSS set。其中CSS set的TCI state为CSS set关联的CORESET的TCI state。
一示例中，多组具有链接关系的USS set pair中每组USS set pair的index为USS set index较小的USS set的index。本公开一示例中，对于USS set是为具有链接关系的两个USS set中的其中一个USS set，若将两个具有链接关系的USS set作为一个USS set pair，这个USS set pair的index与USS set pair内index较小的USS set的index相同。或，具有链接关系的USS set也看成独立的USS set来对待，即根据自身的Set ID来确定。
进一步的，对于不具有链接关系的USS set，根据自身的Set ID来确定index。
其中，本公开实施例中，终端在重叠的PDCCH monitoring occasion上需要监听的多个PDCCH candidate对应的CORESET的USS set被配置一个或多个TCI state的情况下，被配置了多个TCI state的CSS set，根据其自身的index来确定监测优先级。或对于配置了多个TCI state的USS set，其监测优先级高于只配置了一个TCI state的USS set的监测优先级。其中USS set的TCI state为USS set关联的CORESET的TCI state。
本公开实施例提供的PDCCH监测方法中，基于SS set的属性信息确定的SS set的监测优先级时，可以采用如下方式中一种或多种进行确定。
方式一：SS set所属的serving cell index越小，SS set的监测优先级越高。
方式二：CSS set的监测优先级高于USS set的监测优先级。
方式三：SS set的SS set ID越小，SS set的监测优先级越高。
方式四：SS set对应的SS set pair的ID越小，SS set的监测优先级越高。
方式五：与其它SS set具有链接关系的SS set的监测优先级高于不与其它SS set具有链接关系的SS set。
方式六：配置了多个TCI state的SS set的监测优先级高于只配置了一个TCI state的SS set的监测优先级。
基于上述SS set的监测优先级的方式，本公开实施例中在进行SS set的监测优先级确 定时，可以包括如下示例：
一示例中，多组具有链接关系的CSS set，基于每组CSS set pair的index确定监测优先级，依次确定CSS set pair中较小的CSS set的index，CSS set pair的index越小，监测优先级越高。
一示例中，与其它CSS set有链接关系的CSS set的监测优先级，高于与其它USS set具有链接关系的USS set。
一示例中，配置了多个TCI state的CSS set比只配置了一个TCI state的CSS set的监测优先级高。
一示例中，多组具有链接关系的USS set，基于每组USS set pair的index确定监测优先级，依次确定USS set pair中较小的USS set的index，USS set pair的index越小，监测优先级越高。
一示例中，与其它USS set有链接关系的USS set的监测优先级，高于与其它USS set具有链接关系的USS set。
一示例中，与其它USS set有链接关系的USS set的监测优先级高于独立CSS set，和/或，与其它USS set有链接关系的USS set的监测优先级低于独立CSS set。其中独立CSS set指不与其它CSS set具有链接关系的CSS set，独立USS set指不与其它USS set具有链接关系的USS set。
一示例中，配置了多个TCI state的USS set的监测优先级，高于配置了一个TCI state的USS set的监测优先级。
一示例中，配置了两个TCI state的CORESET的QCL Type D的监测优先级高于配置了一个TCI state的CORESET的QCL Type D的监测优先级。
一示例中，CSS#0的监测优先级最高。
一示例中，CSS set pair内index小的CSS set的index大于独立CSS set的index，CSS set pair的监测优先级也高于独立CSS set的监测优先级。
一示例中，USS set pair内index小的USS set的index大于独立USS set的index，USS set pair的监测优先级也高于独立USS set的监测优先级。更进一步的，本公开实施例中，基于SS set的属性信息确定的SS set的监测优先级，并基于SS set的监测优先级，监测PDCCH candidate时，可确定一个或多个指定的CORESET，并在重叠的PDCCH monitoring occasion去监测指定的CORESET和与指定的CORESET的QCL Type D相同的其它CORESET的PDCCH。或终端确定一个或多个指定的QCL Type D，并在重叠的PDCCH monitoring occasion去监测与指定的QCL Type D相同的CORESET的PDCCH。
其中，终端可以被配置一个或多个serving cell。
一示例中，本公开实施例可以基于serving cell index确定指定的CORESET。
响应于终端被配置了一个serving cell，在多个PDCCH candidate对应的CORESET中，确定是否存在包含有CSS set的CORESET。若存在包含有CSS set的CORESET，则基于包括CSS set的CORESET的index，确定指定的CORESET。若不存在包含有CSS set的CORESET，则基于包括USS set的CORESET的index，确定指定CORESET。
响应于所述终端被配置了多个serving cell，在多个PDCCH candidate对应的CORESET中，确定是否存在包含有CSS set的CORESET。若存在包含有CSS set的CORESET，则在包含有CSS set的CORESET中选择serving cell index最小的serving cell，将serving cell index最小的serving cell中CSS set索引最小的CSS set对应的CORESET确定为指定CORESET，和/或将serving cell index最小的serving cell中与其他CSS set具有链接关系的CSS set对应的CORESET确定为指定CORESET。若不存在包含有CSS set的CORESET，则在包含有USS set的CORESET中选择serving cell index最小的serving cell，将serving cell index最小的serving cell中USS set索引最小的USS set对应的CORESET确定为指定CORESET，和/或将serving cell index最小的serving cell中与其他USS set具有链接关系的USS set对应的CORESET确定为指定CORESET。
本公开实施例提供的PDCCH监测方法，确定多个PDCCH candidate在monitor occasion重叠时，根据与之链接的PDCCH candidate是否被监测来确定一个或多个CORESET对应的一个或多个QCL Type D，去monitor重叠occasion上的PDCCH，能够提高PDCCH repetition接收成功率，
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例适用于确定第一PDCCH candidate是否被监测，也适用于确定第二PDCCH candidate是否被监测。而确定第一PDCCH candidate是否被监测的实施例与确定第二PDCCH candidate是否被监测的实施例可以相同或不同，即其监测优先级确定方法可以独立使用。
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例中可以配合前述的实施例使用，也可以是独立使用。无论是单独使用还是配合前述的实施例一起使用，其实现原理类似。本公开实施中，部分实施例中是以一起使用的实施方式进行说明的。当然，本领域内技术人员可以理解，这样的举例说明并非对本公开实施例的限定。
基于相同的构思，本公开实施例还提供一种PDCCH监测装置。
可以理解的是，本公开实施例提供的PDCCH监测装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图6是根据一示例性实施例示出的一种PDCCH监测装置框图。参照图6，PDCCH监测装置100包括处理单元101和监测单元102。
处理单元101，被配置为响应于终端被配置了具有链接关系的第一SS set和第二SS set，并确定与第二SS set的第二PDCCH candidate的监测时间重叠的时域位置上存在多个PDCCH candidate，确定第一SS set的第一PDCCH candidate是否被监测，其中，第一PDCCH candidate和第二PDCCH candidate具有链接关系；监测单元102，被配置为基于第二PDCCH candidate在多个PDCCH candidate中的监测优先级，监测第二PDCCH candidate。
一种实施方式中，监测单元102基于第二SS set对应的控制资源集的准共站址QCL Type D属性，监测第二PDCCH candidate。
一种实施方式中，响应于处理单元101确定第一SS set的第一PDCCH candidate被监测，监测单元102确定第二PDCCH candidate在多个PDCCH candidate中具有最高的监测优先级。
一种实施方式中，响应于确定第一SS set的第一PDCCH candidate未被监测，监测单元102确定第二PDCCH candidate在多个PDCCH candidate中具有最低的监测优先级。
一种实施方式中，第二PDCCH candidate的监测优先级基于第二PDCCH candidate对应的第二SS set确定。
一种实施方式中，监测单元102采用如下方式确定第一SS set的第一PDCCH candidate是否被监测：确定第一SS set的监测优先级，根据监测优先级确定第一SS set的第一PDCCH candidate是否被监测。
一种实施方式中，第一SS set和/或第二SS set的监测优先级，基于SS set的属性信息确定。
一种实施方式中，SS set的属性信息包括以下至少一项：
SS set所属的服务小区索引、SS set的类型、SS set的SS set标识、SS set的链接关系信息，包括SS set在内的具有链接关系的两个SS set组成的SS set对的标识；
其中，SS set的类型包括CSS set或USS set；SS set的链接关系信息包括SS set不与 任何一个SS set具有链接关系，或SS set与另一个SS set具有链接关系。
一种实施方式中，包括SS set在内的具有链接关系的两个SS set组成的SS set对的标识为网络设备配置，或为两个SS set中SS set标识较小的SS set对应的标识。
一种实施方式中，基于SS set的属性信息确定的SS set的监测优先级满足如下至少一项：
SS set所属的服务小区索引越小，监测优先级越高；
CSS set的监测优先级高于USS set的监测优先级；
SS set的SS set标识越小，监测优先级越高；
SS set对应的SS set对的标识越小，监测优先级越高；
与其它SS set具有链接关系的SS set的监测优先级高于不与其它SS set具有链接关系的SS set；
配置了多个TCI state的SS set的监测优先级高于只配置了一个TCI state的SS set的监测优先级。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图7是根据一示例性实施例示出的一种用于PDCCH监测的装置200的框图。例如，装置200可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图7，装置200可以包括以下一个或多个组件：处理组件202，存储器204，电力组件206，多媒体组件208，音频组件210，输入/输出(I/O)接口212，传感器组件214，以及通信组件216。
处理组件202通常控制装置200的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件202可以包括一个或多个处理器220来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件202可以包括一个或多个模块，便于处理组件202和其他组件之间的交互。例如，处理组件202可以包括多媒体模块，以方便多媒体组件208和处理组件202之间的交互。
存储器204被配置为存储各种类型的数据以支持在装置200的操作。这些数据的示例包括用于在装置200上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器204可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)， 磁存储器，快闪存储器，磁盘或光盘。
电力组件206为装置200的各种组件提供电力。电力组件206可以包括电源管理系统，一个或多个电源，及其他与为装置200生成、管理和分配电力相关联的组件。
多媒体组件208包括在所述装置200和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件208包括一个前置摄像头和/或后置摄像头。当装置200处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件210被配置为输出和/或输入音频信号。例如，音频组件210包括一个麦克风(MIC)，当装置200处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器204或经由通信组件216发送。在一些实施例中，音频组件210还包括一个扬声器，用于输出音频信号。
I/O接口212为处理组件202和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件214包括一个或多个传感器，用于为装置200提供各个方面的状态评估。例如，传感器组件214可以检测到装置200的打开/关闭状态，组件的相对定位，例如所述组件为装置200的显示器和小键盘，传感器组件214还可以检测装置200或装置200一个组件的位置改变，用户与装置200接触的存在或不存在，装置200方位或加速/减速和装置200的温度变化。传感器组件214可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件214还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件214还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件216被配置为便于装置200和其他设备之间有线或无线方式的通信。装置200可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件216经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件216还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术， 超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置200可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电指定元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器204，上述指令可由装置200的处理器220执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“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。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (15)

  1. 一种物理下行控制信道监测方法，其特征在于，应用于终端，所述物理下行控制信道监测方法包括：
    响应于所述终端被配置了具有链接关系的第一搜索空间集和第二搜索空间集，并确定与第二搜索空间集的第二物理下行控制信道候选资源的监测时间重叠的时域位置上存在多个物理下行控制信道候选资源，确定第一搜索空间集的第一物理下行控制信道候选资源是否被监测，其中，所述第一物理下行控制信道候选资源和所述第二物理下行控制信道候选资源具有链接关系；
    基于所述第二物理下行控制信道候选资源在所述多个物理下行控制信道候选资源中的监测优先级，监测所述第二物理下行控制信道候选资源。
  2. 根据权利要求1所述的下行控制信道监测方法，其特征在于，监测所述第二物理下行控制信道候选资源，包括：
    基于第二搜索空间集对应的控制资源集的准共站址QCL类型D，监测所述第二物理下行控制信道候选资源。
  3. 根据权利要求1所述的物理下行控制信道监测方法，其特征在于，
    响应于确定第一搜索空间集的第一物理下行控制信道候选资源被监测，所述第二物理下行控制信道候选资源在所述多个物理下行控制信道候选资源中具有最高的监测优先级。
  4. 根据权利要求1所述的物理下行控制信道监测方法，其特征在于，
    响应于确定第一搜索空间集的第一物理下行控制信道候选资源未被监测，所述第二物理下行控制信道候选资源在所述多个物理下行控制信道候选资源中具有最低的监测优先级。
  5. 根据权利要求1所述的物理下行控制信道监测方法，其特征在于，所述第二物理下行控制信道候选资源的监测优先级基于所述第二物理下行控制信道候选资源对应的第二搜索空间集确定。
  6. 根据权利要求1所述的物理下行控制信道监测方法，确定所述第一搜索空间集的第一物理下行控制信道候选资源是否被监测，包括：
    确定第一搜索空间集的监测优先级，根据所述监测优先级确定所述第一搜索空间集的第一物理下行控制信道候选资源是否被监测。
  7. 根据权利要求5或6所述的物理下行控制信道监测方法，其特征在于，第一搜索空间集和/或第二搜索空间集的监测优先级，基于搜索空间集的属性信息确定。
  8. 根据权利要求7所述的物理下行控制信道监测方法，其特征在于，所述搜索空间集的属性信息包括以下至少一项：
    所述搜索空间集所属的服务小区索引、所述搜索空间集的类型、所述搜索空间集的搜索空间集标识、所述搜索空间集的链接关系信息以及包括所述搜索空间集在内的具有链接关系的两个搜索空间集组成的搜索空间集对的标识；
    其中，所述搜索空间集的类型包括通用搜索空间集或终端特定搜索空间集；所述搜索空间集的链接关系信息包括所述搜索空间集不与任何一个搜索空间集具有链接关系，或所述搜索空间集与另一个搜索空间集具有链接关系。
  9. 根据权利要求8所述的物理下行控制信道监测方法，其特征在于，包括所述搜索空间集在内的具有链接关系的两个搜索空间集组成的搜索空间集对的标识为网络设备配置，或为所述两个搜索空间集中搜索空间集标识较小的搜索空间集对应的搜索空间集标识。
  10. 根据权利要求7所述的物理下行控制信道监测方法，其特征在于，基于搜索空间集的属性信息确定的搜索空间集的监测优先级满足如下至少一项：
    搜索空间集所属的服务小区索引越小，监测优先级越高；
    通用搜索空间集的监测优先级高于终端特定搜索空间集的监测优先级；
    搜索空间集的搜索空间集标识越小，监测优先级越高；
    搜索空间集对应的搜索空间集对的标识越小，监测优先级越高；
    与其它搜索空间集具有链接关系的搜索空间集的监测优先级高于不与其它搜索空间集具有链接关系的搜索空间集；
    配置了多个传输配置指示状态的搜索空间集的监测优先级高于只配置了一个传输配置指示状态的搜索空间集的监测优先级。
  11. 一种物理下行控制信道监测装置，其特征在于，应用于终端，所述物理下行控制信道监测装置包括：
    处理单元，被配置为响应于所述终端被配置了具有链接关系的第一搜索空间集和第二搜索空间集，并确定与第二搜索空间集的第二物理下行控制信道候选资源的监测时间重叠的时域位置上存在多个物理下行控制信道候选资源，确定第一搜索空间集的第一物理下行控制信道候选资源是否被监测，其中，所述第一物理下行控制信道候选资源和所述第二物理下行控制信道候选资源具有链接关系；
    监测单元，被配置为基于所述第二物理下行控制信道候选资源在所述多个物理下行控制信道候选资源中的监测优先级，监测所述第二物理下行控制信道候选资源。
  12. 根据权利要求11所述的物理下行控制信道监测装置，其特征在于，响应于所述处理单元确定第一搜索空间集的第一物理下行控制信道候选资源被监测，所述监测单元确定所述第二物理下行控制信道候选资源在所述多个物理下行控制信道候选资源中具有最高的监测优先级。
  13. 根据权利要求11所述的物理下行控制信道监测装置，其特征在于，响应于确定第一搜索空间集的第一物理下行控制信道候选资源未被监测，所述监测单元确定所述第二物理下行控制信道候选资源在所述多个物理下行控制信道候选资源中具有最低的监测优先级。
  14. 一种物理下行控制信道监测装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至10中任意一项所述的物理下行控制信道监测方法。
  15. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行权利要求1至10中任意一项所述的物理下行控制信道监测方法。
PCT/CN2021/113868 2021-08-20 2021-08-20 物理下行控制信道监测方法、装置及存储介质 WO2023019577A1 (zh)

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