Physical downlink control channel monitoring method, device and storage medium

Abstract

The present disclosure relates to a physical downlink control channel monitoring method, device and storage medium. The physical downlink control channel monitoring method is applied to a terminal, and the physical downlink control channel monitoring method includes: in response to the terminal being configured with a first search space set and a second search space set having a link relationship, and determining that there are multiple PDCCH candidates at a time domain position overlapping with the monitoring time of a second PDCCH candidate of the second search space set, 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. The present disclosure can improve the PDCCH reception success rate.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a physical downlink control channel monitoring method, device and storage medium. Background Art

[0002] In new wireless technology (New Radio, NR), for example, when the communication frequency band is in frequency range 2, since the high-frequency channel attenuates quickly, in order to ensure the coverage range, beam-based transmission and reception are required.

[0003] In the related art, 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, when the monitoring time domain positions (monitor occasions) corresponding to multiple PDCCH candidate resources (PDCCHcandidate) overlap, when the quasi-colocation (QCL) beam information of the control resource sets (Control Resource Set, CORESET) corresponding to the multiple PDCCH candidates is different, for example, the QCL type (Type) D is different, then the terminal needs to determine a designated CORESET in this overlapping monitor occasion, and then use the QCL Type D corresponding to the designated CORESET to monitor the PDCCH corresponding to the designated CORESET in this overlapping monitor occasion, as well as the PDCCH corresponding to other CORESETs with the same QCLType D as the designated CORESET.

[0004] Since the terminal can only use one QCL Type D to monitor PDCCH in overlapping monitor occasions, the terminal will not be able to receive PDCCH monitoring using different QCL Type D, which reduces the success rate of PDCCH transmission. In Rel-17, the terminal will support the use of multiple (typically 2) QCL Type D to receive multiple PDCCHs at the same time, so one or more CORESETs need to be determined on overlapping monitor occasions, so that the terminal can use the QCL Type D corresponding to the one or more CORESETs to monitor multiple PDCCHs on the overlapping monitor occasions. However, there is currently no solution to how to determine one or more CORESETs for monitoring PDCCHs. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the present disclosure provides a physical downlink control channel monitoring method, device and storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a physical downlink control channel monitoring method is provided, which is applied to a terminal. The physical downlink control channel monitoring method includes:

[0007] In response to the terminal being configured with a first search space set and a second search space set having a link relationship, and determining that there are multiple PDCCH candidates at a time domain position overlapping with a monitoring time of a second PDCCH candidate of the second search space set, determining whether a 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;

[0008] The second PDCCH candidate is monitored based on a monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates.

[0009] In one implementation, monitoring the second PDCCH candidate includes:

[0010] The second PDCCH candidate is monitored based on a quasi co-site QCL Type D attribute of a control resource set corresponding to the second search space set.

[0011] In one implementation, in response to determining that the first PDCCH candidate in the first search space set is monitored, the second PDCCH candidate has the highest monitoring priority among the multiple PDCCH candidates.

[0012] In one implementation, in response to determining that the first PDCCH candidate in the first search space set is not monitored, the second PDCCH candidate has the lowest monitoring priority among the multiple PDCCH candidates.

[0013] In one implementation, the monitoring priority of the second PDCCH candidate is determined based on a second search space set corresponding to the second PDCCH candidate.

[0014] In one implementation, determining whether the first PDCCH candidate of the first search space set is monitored includes: determining a monitoring priority of the first search space set, and determining whether the first PDCCH candidate of the first search space set is monitored according to the monitoring priority.

[0015] In one implementation, 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.

[0016] In one implementation, the attribute information of the search space set includes at least one of the following:

[0017] The serving cell index 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 identifier of a search space set pair consisting of two search space sets having a link relationship including the search space set;

[0018] Among them, 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 has no link relationship with any search space set, or that the search space set has a link relationship with another search space set.

[0019] In one implementation, the identifier of the search space set pair consisting of two search space sets having a link relationship including the search space set is a network device configuration, or is an identifier corresponding to the search space set with a smaller search space set identifier among the two search space sets.

[0020] In one implementation, 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:

[0021] The smaller the serving cell index to which the search space set belongs, the higher the monitoring priority;

[0022] The monitoring priority of the general search space set is higher than the monitoring priority of the terminal-specific search space set;

[0023] The smaller the search space set identifier of the search space set, the higher the monitoring priority;

[0024] The smaller the identifier of the search space set pair corresponding to the search space set, the higher the monitoring priority;

[0025] The monitoring priority of a search space set that has a link relationship with other search space sets is higher than that of a search space set that does not have a link relationship with other search space sets;

[0026] The monitoring priority of a search space set configured with multiple transmission configuration indication states is higher than the monitoring priority of a search space set configured with only one transmission configuration indication state.

[0027] According to a second aspect of an embodiment of the present disclosure, a physical downlink control channel monitoring device is provided, which is applied to a terminal, and the physical downlink control channel monitoring device includes:

[0028] A processing unit is configured to determine whether a first PDCCH candidate in the first search space set is monitored in response to the terminal being configured with a first search space set and a second search space set having a link relationship, and determining that there are multiple PDCCH candidates at a time domain position overlapping with a monitoring time of a second PDCCH candidate in the second search space set, wherein the first PDCCH candidate and the second PDCCH candidate have a link relationship; and a monitoring unit is configured to monitor the second PDCCH candidate based on the monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates.

[0029] In one implementation, the monitoring unit monitors the second PDCCH candidate based on a quasi co-sited QCL Type D attribute of a control resource set corresponding to the second search space set.

[0030] In one implementation, in response to the processing unit determining that a first PDCCH candidate of a first search space set is monitored, the monitoring unit determines that the second PDCCH candidate has a highest monitoring priority among the multiple PDCCH candidates.

[0031] In one implementation, in response to determining that the first PDCCH candidate in the first search space set is not monitored, the monitoring unit determines that the second PDCCH candidate has the lowest monitoring priority among the multiple PDCCH candidates.

[0032] In one implementation, the monitoring priority of the second PDCCH candidate is determined based on a second search space set corresponding to the second PDCCH candidate.

[0033] In one implementation, the monitoring unit determines whether the first PDCCH candidate of the first search space set is monitored in the following manner: determining a monitoring priority of the first search space set, and determining whether the first PDCCH candidate of the first search space set is monitored according to the monitoring priority.

[0034] In one implementation, 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.

[0035] In one implementation, the attribute information of the search space set includes at least one of the following:

[0036] The serving cell index 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 identifier of a search space set pair consisting of two search space sets having a link relationship including the search space set;

[0037] Among them, 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 has no link relationship with any search space set, or that the search space set has a link relationship with another search space set.

[0038] In one implementation, the identifier of the search space set pair consisting of two search space sets having a link relationship including the search space set is a network device configuration, or is an identifier corresponding to the search space set with a smaller search space set identifier among the two search space sets.

[0039] In one implementation, 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:

[0040] The smaller the serving cell index to which the search space set belongs, the higher the monitoring priority;

[0041] The monitoring priority of the general search space set is higher than the monitoring priority of the terminal-specific search space set;

[0042] The smaller the search space set identifier of the search space set, the higher the monitoring priority;

[0043] The smaller the identifier of the search space set pair corresponding to the search space set, the higher the monitoring priority;

[0044] The monitoring priority of a search space set that has a link relationship with other search space sets is higher than that of a search space set that does not have a link relationship with other search space sets;

[0045] The monitoring priority of a search space set configured with multiple transmission configuration indication states is higher than the monitoring priority of a search space set configured with only one transmission configuration indication state.

[0046] According to a third aspect of an embodiment of the present disclosure, a physical downlink control channel monitoring device is provided, including:

[0047] a processor; a memory for storing instructions executable by the processor;

[0048] The processor is configured to: execute the physical downlink control channel monitoring method described in the first aspect or any one of the first aspect.

[0049] According to the fourth aspect of the embodiments of the present disclosure, a storage medium is provided, in which instructions are stored. When the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute the physical downlink control channel monitoring method described in the first aspect or any one of the embodiments of the first aspect.

[0050] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: when the terminal is configured with a first search space set and a second search space set having a link relationship, and it is determined that there are multiple PDCCH candidates at a time domain position that overlaps with the monitoring time of a second PDCCH candidate of the second search space set, it is determined whether the first PDCCH candidate of the first search space set having a link relationship with the second search space set is monitored, and based on the monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates, the second PDCCH candidate is monitored to improve the PDCCH reception success rate.

[0051] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0053] Figure 1 The invention is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0054] FIG. 2A to FIG. 2C The figure is a flow chart of a PDCCH monitoring method according to an exemplary embodiment.

[0055] Figure 3 The figure is a flow chart of a PDCCH monitoring method according to an exemplary embodiment.

[0056] Figure 4 The figure is a flow chart of a PDCCH monitoring method according to an exemplary embodiment.

[0057] Figure 5 The figure is a flow chart of a PDCCH monitoring method according to an exemplary embodiment.

[0058] Figure 6 A block diagram of a PDCCH monitoring device is shown according to an exemplary embodiment.

[0059] Figure 7 It is a block diagram showing a device for PDCCH monitoring according to an exemplary embodiment. DETAILED DESCRIPTION

[0060] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure.

[0061] The PDCCH monitoring method provided by the embodiment of the present disclosure can be applied to Figure 1 In the wireless communication system shown in FIG. Figure 1 As shown, the wireless communication system includes a terminal and a network device. The terminal is connected to the network device through wireless resources and performs data transmission and reception.

[0062] Understandably, Figure 1 The wireless communication system shown is only for schematic illustration. The wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices. Figure 1 The embodiment of the present disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0063] It can be further understood that the wireless communication system of the embodiment of the present disclosure is a network that provides wireless communication functions. The wireless communication system can adopt 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 (SC-FDMA), carrier sense multiple access / collision avoidance (Carrier Sense Multiple Access with Collision Avoidance). According to the capacity, rate, delay and other factors of different networks, 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 new radio network (New Radio, NR). For the convenience of description, the present disclosure sometimes refers to the wireless communication network as a network.

[0064] Furthermore, the network equipment involved in the present disclosure may also be referred to as a wireless access network device. The wireless access network device may be: a base station, an evolved node B (eNB), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a gNB in ​​an NR system, or it may also be a component or part of a device constituting a base station. When it is a vehicle-to-everything (V2X) communication system, the network device may also be a vehicle-mounted device. It should be understood that in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network device are not limited.

[0065] Furthermore, the terminal involved in the present disclosure may also be referred to as a terminal device, a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal, MT), etc., which is a device that provides voice and / or data connectivity to users. For example, the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals are: a smart phone (Mobile Phone), a pocket computer (Pocket Personal Computer, PPC), a PDA, a personal digital assistant (Personal Digital Assistant, PDA), a laptop computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.

[0066] In the present disclosure, data transmission is performed between a network device and a terminal based on a beam. In Rel-15 / 16, during the process of data transmission based on a beam, 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 the beam information of the CORESETs corresponding to the multiple PDCCH candidates is different, for example, the QCL Type D is different, then the terminal needs to determine a designated CORESET in this overlapping monitor occasion, and then use the QCL Type D corresponding to the designated CORESET to monitor the PDCCH corresponding to the designated CORESET and the PDCCH corresponding to other CORESETs with the same QCL Type D as the designated CORESET in this overlapping monitor occasion. That is, in the overlapping monitor occasion, the terminal can only use one QCL Type D to monitor the PDCCH, so the terminal will not be able to receive the PDCCH monitored using different QCL Type D, which reduces the success rate of PDCCH transmission. In Rel-17, the terminal will support the use of multiple (typically 2) QCLType D to simultaneously receive multiple PDCCHs. Therefore, on overlapping monitor occasions, one or more CORESETs can be determined, allowing the terminal to use one or more QCL Type D corresponding to the one or more CORESETs to monitor multiple PDCCHs on the overlapping monitor occasions to improve the success rate of PDCCH reception.

[0067] In the related art, a search space set (SSset) 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 the link relationship to monitor the PDCCH candidate of the overlapping time. Among them, the two SS sets have a link relationship, which can be understood as different SS sets having candidate resources for PDCCH repetition (PDCCH repetition). For example, the two SS sets with a link relationship include a first SS set and a second SS set. The first SS set includes a first PDCCH candidate, and the second SS set includes a 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.

[0068] When a first SS set and a second SS set having a link relationship use a time division multiplexing (TDM) method, the following situations may occur due to the different times of the first PDCCH candidate and the second PDCCH candidate:

[0069] 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.

[0070] Case 2: The first PDCCH candidate overlaps with PDCCH candidates of other SS sets, and the second PDCCH candidate does not overlap with PDCCH candidates of other SS sets.

[0071] 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.

[0072] For situation 3, there are further situations as follows:

[0073] Case 3-1: The first SS set and the second SS set are the same.

[0074] Case 3-2: The first SS set and the second SS set are different.

[0075] In view of the above situations, when the monitoring time of the second PDCCH candidate of the second SS set has multiple PDCCH candidates with time domain overlaps in SSsets, whether the second PDCCH candidate needs to be monitored is a problem that needs further optimization.

[0076] In an embodiment of the present disclosure, when two PDCCH candidates (a first PDCCH candidate and a second PDCCH candidate) included in two SS sets (a first SS set and a second SS set) having a link relationship of a terminal have a link relationship, if it is determined that there are multiple PDCCH candidates at a time domain position where the monitoring time of the second PDCCH candidate overlaps, it is determined whether the first PDCCH candidate is monitored, and it is determined whether the second PDCCH candidate is monitored.

[0077] In one implementation, in the embodiment of the present disclosure, the monitoring priority of the second PDCCH candidate among multiple PDCCH candidates can be determined based on whether the first PDCCH candidate is monitored or not monitored, and based on the monitoring priority of the second PDCCH candidate among multiple PDCCH candidates, the second PDCCH candidate is monitored to determine whether the second PDCCH candidate is monitored.

[0078] The monitoring priority involved in the embodiment of the present disclosure refers to the priority of being monitored at the overlapping time domain position. It can be understood that the higher the monitoring priority, the greater the possibility of being monitored. The lower the monitoring priority, the smaller the possibility of being monitored.

[0079] In one implementation of the embodiment of the present disclosure, 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 monitored.

[0080] Figure 2A is a flow chart of a PDCCH monitoring method according to an exemplary embodiment. Figure 2A As shown, the PDCCH monitoring method is used in a terminal and includes the following steps.

[0081] In step S11a, in response to the terminal being configured with a first SS set and a second SS set having a linked relationship, and determining that there are multiple PDCCH candidates at a time domain position overlapping with the monitoring time of the second PDCCH candidate of the second SS set, it is determined that the first PDCCH candidate of the first SS set is monitored.

[0082] In step S12a, the second PDCCH candidate is monitored based on the monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates.

[0083] Figure 2B is a flow chart of a PDCCH monitoring method according to an exemplary embodiment. Figure 2B As shown, the PDCCH monitoring method is used in a terminal and includes the following steps.

[0084] In step S11b, in response to the terminal being configured with a first SS set and a second SS set having a linked relationship, and determining that there are multiple PDCCH candidates at a time domain position overlapping with the monitoring time of the second PDCCH candidate of the second SS set, it is determined that the first PDCCH candidate of the first SS set is not monitored.

[0085] In step S12b, the second PDCCH candidate is monitored based on the monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates.

[0086] In another implementation of the disclosed embodiment, 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 determine whether the first PDCCH candidate is monitored, and based on the determination result of whether the first PDCCH candidate is monitored, determine whether the second PDCCH candidate is monitored.

[0087] Figure 2C is a flow chart of a PDCCH monitoring method according to an exemplary embodiment. Figure 2C As shown, the PDCCH monitoring method is used in a terminal and includes the following steps.

[0088] In step S11c, in response to the terminal being configured with a first SS set and a second SS set having a linked relationship, and determining that there are multiple PDCCH candidates at a time domain position overlapping with the monitoring time of the second PDCCH candidate of the second SS set, it is determined whether the first PDCCH candidate of the first SS set is monitored.

[0089] In 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, the second PDCCH candidate is monitored based on the monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates.

[0090] It is understandable that the present disclosure FIG. 2A to FIG. 2C In the implementation manner involved, the first PDCCH candidate and the second PDCCH candidate have a link relationship. In the disclosed embodiment, the first PDCCH candidate and the second PDCCH candidate have a link relationship, which can be understood as the first PDCCH candidate and the second PDCCH candidate are used for PDCCH repetition. Among them, the time relationship between the first PDCCH candidate and the second PDCCH candidate can be that the first PDCCH candidate is ahead, or the second PDCCH candidate is ahead, or the first PDCCH candidate and the second PDCCH candidate overlap in time domain.

[0091] In the embodiment of the present disclosure, the first PDCCH candidate is earlier than the second PDCCH candidate in time. In the embodiment of the present disclosure, the second PDCCH candidate is monitored based on the QCL Type D attribute of the CORESET corresponding to the second SS Set.

[0092] Among them, QCL Type D can be understood as a spatial reception parameter, sometimes also called a beam.

[0093] In one implementation, when two PDCCH candidates of a terminal have a link relationship, when the QCL Type D configured by the CORESETs corresponding to the multiple PDCCH candidates that need to be monitored on the overlapping PDCCH monitoring occasion of the second PDCCH candidate are the same or different, the terminal determines one or more designated CORESETs, and monitors the designated CORESET and the PDCCH candidates of other CORESETs with the same QCL TypeD as the designated CORESET on the overlapping PDCCH monitoring occasion, thereby improving the PDCCH reception success rate.

[0094] In the disclosed embodiment, the terminal determines that the first SS set and the second SS set are two SS sets having a link relationship. When there are multiple PDCCH candidates with time domain overlap in the monitoring time of the second PDCCH candidate of the second SS set, 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, the terminal sets the monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates according to whether the first PDCCH candidate of the first SS set is monitored.

[0095] In one implementation manner, the first PDCCH candidate and the second PDCCH candidate have a link relationship. Therefore, when it is determined that the first PDCCH candidate of the first SS set is monitored, for the performance of PDCCH repetition, the second PDCCH candidate also needs to be monitored.

[0096] Figure 3 is a flow chart of a PDCCH monitoring method according to an exemplary embodiment. Figure 3 As shown, the PDCCH monitoring method is used in a terminal and includes the following steps.

[0097] In step S21, in response to determining that a first PDCCH candidate of a first SS set is monitored, it is determined that a second PDCCH candidate has the highest monitoring priority among a plurality of PDCCH candidates.

[0098] In step S22, at a time domain position where the monitoring time of the second PDCCH candidate of the second SS set overlaps, the PDCCH candidate is monitored using the second QCL Type D corresponding to the second SS set.

[0099] In an embodiment of the present disclosure, 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 multiple PDCCH candidates. The second PDCCH candidate having the highest monitoring priority among multiple PDCCH candidates can be understood as the second PDCCH candidate of the second SS set needs to be monitored. Among them, the second PDCCH candidate of the second SS set needs to be monitored, that is, in the overlapping time domain, the second QCL Type D corresponding to the second SS set needs to be used to monitor the PDCCH candidate. Among them, the PDCCH candidates monitored using 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.

[0100] In another embodiment of the present disclosure, 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 multiple PDCCH candidates. The second PDCCH candidate having the highest monitoring priority among multiple PDCCH candidates can be understood as the second PDCCH candidate of the second SS set needs to be monitored. However, when there are multiple first PDCCH candidates to be monitored, and each first PDCCH candidate has a corresponding second PDCCH candidate, if these multiple second PDCCH candidates overlap in the time domain, it is necessary to further determine the monitoring priority of these multiple second PDCCH candidates. Among them, the method for further determining the monitoring priority of these multiple second PDCCH candidates includes the following first item and / or second item:

[0101] The first item: determined according to the monitoring priority of one or more first SS sets corresponding to the multiple first PDCCH candidates, wherein 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, and the monitoring priority of the first SS set is determined according to the attribute information of the first SS set.

[0102] The second item: determined according to the monitoring priority 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 SSset needs to be monitored, that is, in the overlapping time domain, the second QCL Type D corresponding to the second SS set needs to be used to monitor the PDCCH candidate. The PDCCH candidates monitored using 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 QCLType D.

[0103] In another implementation of the disclosed embodiment, the first PDCCH candidate and the second PDCCH candidate have a link relationship. When it is determined that 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.

[0104] Figure 4 is a flow chart of a PDCCH monitoring method according to an exemplary embodiment. Figure 4 As shown, the PDCCH monitoring method is used in a terminal and includes the following steps.

[0105] In 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.

[0106] In 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.

[0107] In an embodiment of the present disclosure, 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 multiple PDCCH candidates. The second PDCCH candidate having the lowest monitoring priority among multiple PDCCH candidates can be understood as 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, it is not necessary to use the second QCL Type D corresponding to the second SS set to monitor the PDCCH candidate of the second SS set, as well as the PDCCH candidates of other SS sets whose QCL Type D is the same as the second QCL Type D.

[0108] In the disclosed embodiment, the terminal determines the monitoring priority of the second PDCCH candidate among multiple PDCCH candidates according to whether the first PDCCH candidate is monitored, and further determines whether it is necessary to determine one or more designated CORESETs, and monitors the designated CORESET and the PDCCH candidates of other CORESETs with the same QCL Type D as the designated CORESET in overlapping PDCCH monitoring occasions, thereby improving the PDCCH reception success rate.

[0109] In another implementation of the disclosed embodiment, determining whether a first PDCCH candidate is monitored is determined based on the monitoring priority of the first PDCCH candidate. Determining whether a second PDCCH candidate is monitored is determined based on the monitoring priority of the second PDCCH candidate. When determining whether a PDCCH candidate is monitored, 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 determining whether the PDCCH candidate is monitored based on the monitoring priority of the PDCCH candidate.

[0110] For the convenience of description, the embodiments of the present disclosure do not distinguish between the first PDCCH candidate and the second PDCCH candidate, and illustrate the process of determining the monitoring priority of the PDCCH candidate. That is, the PDCCH candidate involved in the following embodiments can be the first PDCCH candidate or the second PDCCH candidate. It can be understood that the SS set involved in the following embodiments also does 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 SS set involved is the first SS set. For the determination of the monitoring priority of the second PDCCH candidate, the SS set involved is the second SS set.

[0111] Figure 5 is a flow chart of a PDCCH monitoring method according to an exemplary embodiment. Figure 5 As shown, the PDCCH monitoring method is used in a terminal and includes the following steps.

[0112] In 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.

[0113] In step S42, it is determined whether the PDCCH candidate is to be monitored based on the monitoring priority of the PDCCH candidate.

[0114] Among them, in the embodiment of the present disclosure, it is necessary to determine the monitoring priority of the first PDCCH candidate and / or the monitoring priority of the second PDCCH candidate.

[0115] For example, when determining whether the first PDCCH candidate is monitored, the monitoring priority of the first SS set may be determined based on the attribute information of the first SS set, and whether the first PDCCH candidate of the first SS set is monitored may be determined according to the monitoring priority of the first SS set.

[0116] When determining whether the second PDCCH candidate is monitored, the monitoring priority of the second SS set can be determined based on the attribute information of the second SS set, and whether the second PDCCHcandidate of the second SS set is monitored can be determined according to the monitoring priority of the second SS set. The attribute information of the SS set used to determine the monitoring priority of the PDCCH candidate includes at least one of the following: a serving cell index to which the SS set belongs, a type of the SS set, an SS set identifier (ID), link relationship information of the SS set, and an ID of an SS set pair consisting of two SS sets having a link relationship including the SS set.

[0117] 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 may be understood as the serving cell index corresponding to the one or more serving cells configured with the terminal.

[0118] The type of SS set is used to indicate whether the SS set is a common search space set (CSS set) or a terminal-specific search space set (USS set).

[0119] SS set ID can be understood as the sequential number of the SS set. For example, the ID of SS set #0 is #0.

[0120] The link relationship information of the SS set includes that the SS set has no link relationship with any SS set, or the SS set has a link relationship with another SS set.

[0121] The ID of the SS set pair may be configured by a network device such as a base station, or may be an ID corresponding to an SS set with a smaller SS set ID among two SS sets included in the SS set pair.

[0122] In the disclosed embodiment, the CORESET corresponding to the multiple PDCCH candidates that the terminal needs to monitor on the overlapping PDCCH monitoring occasion may be configured with a CSS set, and the CSS set corresponds to a CSS set index (CSSset index). The CORESET corresponding to the multiple PDCCHcandidates that the terminal needs to monitor on the overlapping PDCCH monitoring occasion may be configured with a USS set. The USS set corresponds to a USS set index (USS setindex). Among them, the ID of the SS set pair can also be understood as the index of the SS set pair.

[0123] In one example, the index of each CSS set pair in a plurality of CSS set pairs with a link relationship is the index of the CSS set with a smaller CSSset index. In one example of the present disclosure, for a CSS set that is one of two CSS sets with a link relationship, if the two CSS sets with a link relationship are regarded as a CSS setpair, the index of this CSS set pair is the same as the index of the CSS set with a smaller index in the CSS set pair. Alternatively, the CSS sets with a link relationship are also regarded as independent CSS sets, that is, the index is determined according to the CSS Set ID of the CSS set itself.

[0124] Furthermore, for a CSS set that has no link relationship, the index is determined according to the CSS Set ID of the CSS set itself.

[0125] Among them, in the embodiment of the present disclosure, the CSS set of the CORESET corresponding to multiple PDCCH candidates that the terminal needs to monitor on the overlapping PDCCH monitoring occasion can be configured with one or more transmission configuration indication states (TCI state). For a CSS set configured with multiple TCI states, 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 CSSset.

[0126] In one example, the index of each USS set pair in multiple USS set pairs with a link relationship is the index of the USS set with a smaller USS set index. In one example of the present disclosure, for a USS set that is one of two USS sets with a link relationship, if the two USS sets with a link relationship are taken as a USS set pair, the index of this USS set pair is the same as the index of the USS set with a smaller index in the USS set pair. Alternatively, the USS sets with a link relationship are also treated as independent USS sets, that is, determined according to their own Set IDs.

[0127] Furthermore, for a USS set that has no link relationship, the index is determined according to its own Set ID.

[0128] Among them, in the embodiment of the present disclosure, when 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, the CSS set configured with multiple TCI states determines the monitoring priority according to its own index. Or for the USS set configured with multiple TCI states, its monitoring priority is higher than the monitoring priority of the 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.

[0129] In the PDCCH monitoring method provided by the embodiment of the present disclosure, when determining the monitoring priority of the SS set based on the attribute information of the SS set, one or more of the following methods may be used for determination.

[0130] Method 1: The smaller the serving cell index to which the SS set belongs, the higher the monitoring priority of the SS set.

[0131] Method 2: The monitoring priority of the CSS set is higher than the monitoring priority of the USS set.

[0132] Method 3: The smaller the SS set ID of the SS set, the higher the monitoring priority of the SS set.

[0133] 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.

[0134] Mode 5: 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 has no link relationship with other SS sets.

[0135] Mode 6: The monitoring priority of an SS set configured with multiple TCI states is higher than the monitoring priority of an SS set configured with only one TCIstate.

[0136] Based on the above-mentioned SS set monitoring priority method, the following examples may be included when determining the SS set monitoring priority in the embodiments of the present disclosure:

[0137] In one example, for multiple groups of CSS sets with link relationships, the monitoring priority is determined based on the index of each group of CSS set pairs, and the index of the smaller CSS set in the CSS set pair is determined in turn. The smaller the index of the CSS set pair, the higher the monitoring priority.

[0138] In one example, 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.

[0139] In one example, a CSS set configured with multiple TCI states has a higher monitoring priority than a CSS set configured with only one TCI state.

[0140] In one example, for multiple groups of linked USS sets, the monitoring priority is determined based on the index of each USS set pair, and the index of the smaller USS set in the USS set pair is determined in turn. The smaller the index of the USS set pair, the higher the monitoring priority.

[0141] In one example, 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.

[0142] In one example, a USS set that has a link relationship with other USS sets has a higher monitoring priority than an independent CSS set, and / or a USS set that has a link relationship with other USS sets has a lower monitoring priority than an independent CSS set. An independent CSS set refers to a CSS set that has no link relationship with other CSS sets, and an independent USS set refers to a USS set that has no link relationship with other USS sets.

[0143] In one example, the monitoring priority of a USS set configured with multiple TCI states is higher than the monitoring priority of a USS set configured with one TCIstate.

[0144] In one example, the monitoring priority of the QCL Type D of the CORESET configured with two TCI states is higher than the monitoring priority of the QCL Type D of the CORESET configured with one TCI state.

[0145] In one example, CSS#0 has the highest monitoring priority.

[0146] In one example, the index of a CSS set with a smaller index in a CSS set pair is greater than the index of an independent CSS set, and the monitoring priority of the CSS set pair is also higher than the monitoring priority of the independent CSS set.

[0147] In one example, 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 the monitoring priority of the independent USS set. Furthermore, in the disclosed embodiment, based on 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 the PDCCHs of the specified CORESET and other CORESETs with the same QCL Type D as the specified CORESET can be monitored in overlapping PDCCH monitoringoccasions. Or the terminal determines one or more specified QCL Type Ds, and monitors the PDCCH of the CORESET with the same QCL Type D as the specified CORESET in overlapping PDCCH monitoringoccasions.

[0148] The terminal may be configured with one or more serving cells.

[0149] In one example, an embodiment of the present disclosure may determine a specified CORESET based on a serving cell index.

[0150] In response to a terminal being configured with a serving cell, it is determined whether there is a CORESET including a CSS set in the CORESETs corresponding to the multiple PDCCH candidates. If there is a CORESET including a CSS set, the designated CORESET is determined based on the index of the CORESET including the CSS set. If there is no CORESET including the CSS set, the designated CORESET is determined based on the index of the CORESET including the USS set.

[0151] In response to the terminal being configured with multiple serving cells, determine whether there is a CORESET including a CSS set in the CORESETs corresponding to the multiple PDCCH candidates. If there is a CORESET including a CSS set, select the serving cell with the smallest serving cell index in the CORESET including the CSS set, 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 designated CORESET, and / or determine the CORESET corresponding to the CSS set with a link relationship with other CSS sets in the serving cell with the smallest serving cell index as the designated CORESET. If there is no CORESET including a CSS set, select the serving cell with the smallest serving cell index in the CORESET including the USS set, determine the CORESET corresponding to the USS set with the smallest USS set index in the serving cell with the smallest serving cell index as the designated CORESET, and / or determine the CORESET corresponding to the USS set with a link relationship with other USS sets in the serving cell with the smallest serving cell index as the designated CORESET.

[0152] The PDCCH monitoring method provided by the embodiment of the present disclosure determines that when multiple PDCCH candidates overlap in monitoroccasion, one or more QCL Type D corresponding to one or more CORESETs is determined according to whether the PDCCH candidates linked thereto are monitored, and the PDCCH on the overlapping monitoroccasion is de-monitored, which can improve the PDCCHrepetition reception success rate.

[0153] It should be noted that those skilled in the art can understand that the various implementation methods / embodiments involved in the above-mentioned 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 and the embodiment for determining whether the second PDCCH candidate is monitored can be the same or different, that is, their monitoring priority determination methods can be used independently.

[0154] It should be noted that those skilled in the art can understand that the various implementation methods / embodiments involved in the embodiments of the present disclosure can be used in conjunction with the aforementioned embodiments or can be used independently. Whether used alone or in conjunction with the aforementioned embodiments, the implementation principle is similar. In the implementation of the present disclosure, some embodiments are described in terms of implementation methods used together. Of course, those skilled in the art can understand that such examples are not limitations of the embodiments of the present disclosure.

[0155] Based on the same concept, an embodiment of the present disclosure also provides a PDCCH monitoring device.

[0156] It is understandable that the PDCCH monitoring device provided in the embodiment of the present disclosure includes hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiment of the present disclosure, the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving 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 considered to exceed the scope of the technical solution of the embodiment of the present disclosure.

[0157] Figure 6 FIG. 1 is a block diagram of a PDCCH monitoring device according to an exemplary embodiment. Figure 6 , the PDCCH monitoring device 100 includes a processing unit 101 and a monitoring unit 102.

[0158] The processing unit 101 is configured to determine whether the first PDCCH candidate of the first SS set is monitored in response to the terminal being configured with a first SS set and a second SS set having a link relationship, and determining that there are multiple PDCCH candidates at a time domain position overlapping with the monitoring time of the second PDCCH candidate of the second SS set, wherein the first PDCCH candidate and the second PDCCH candidate have a link relationship; the monitoring unit 102 is configured to monitor the second PDCCH candidate based on the monitoring priority of the second PDCCH candidate among the multiple PDCCH candidates.

[0159] In one implementation, the monitoring unit 102 monitors the second PDCCH candidate based on a quasi co-located QCLType D attribute of a control resource set corresponding to the second SS set.

[0160] In one implementation, in response to the processing unit 101 determining that the first PDCCH candidate of the first SS set is monitored, the monitoring unit 102 determines that the second PDCCH candidate has the highest monitoring priority among the multiple PDCCH candidates.

[0161] In one implementation, in response to determining that the first PDCCH candidate of the first SS set is not monitored, the monitoring unit 102 determines that the second PDCCH candidate has the lowest monitoring priority among the multiple PDCCH candidates.

[0162] In one implementation, the monitoring priority of the second PDCCH candidate is determined based on a second SS set corresponding to the second PDCCH candidate.

[0163] In one implementation, the monitoring unit 102 determines whether the first PDCCH candidate of the first SS set is monitored in the following manner: determining a monitoring priority of the first SS set, and determining whether the first PDCCH candidate of the first SS set is monitored according to the monitoring priority.

[0164] In one implementation, the monitoring priority of the first SS set and / or the second SS set is determined based on the attribute information of the SS set.

[0165] In one implementation, the attribute information of the SS set includes at least one of the following:

[0166] 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 an SS set pair consisting of two SS sets with a link relationship including the SS set;

[0167] The type of the SS set includes a CSS set or a USS set; the link relationship information of the SS set includes that the SS set has no link relationship with any SS set, or that the SS set has a link relationship with another SS set.

[0168] In one implementation manner, the identifier of an SS set pair consisting of two SS sets having a link relationship including the SS set is a network device configuration, or is an identifier corresponding to the SS set with a smaller SS set identifier among the two SS sets.

[0169] In one implementation, the monitoring priority of the SS set determined based on the attribute information of the SS set satisfies at least one of the following:

[0170] The smaller the serving cell index to which the SS set belongs, the higher the monitoring priority;

[0171] The monitoring priority of CSS set is higher than that of USS set;

[0172] The smaller the SS set identifier of an SS set, the higher the monitoring priority;

[0173] The smaller the identifier of the SS set pair corresponding to the SS set, the higher the monitoring priority;

[0174] 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;

[0175] The monitoring priority of an SS set configured with multiple TCI states is higher than the monitoring priority of an SS set configured with only one TCI state.

[0176] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0177] Figure 72 is a block diagram of an apparatus 200 for PDCCH monitoring according to an exemplary embodiment. For example, 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, etc.

[0178] Reference Figure 7 , the device 200 may include one or more of the following components: a processing component 202 , a memory 204 , a power component 206 , a multimedia component 208 , an audio component 210 , an input / output (I / O) interface 212 , a sensor component 214 , and a communication component 216 .

[0179] The processing component 202 generally controls the overall operation of the device 200, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 202 may include one or more modules to facilitate interaction between the processing component 202 and other components. For example, the processing component 202 may include a multimedia module to facilitate interaction between the multimedia component 208 and the processing component 202.

[0180] The memory 204 is configured to store various types of data to support operations on the device 200. Examples of such data include instructions for any application or method operating on the device 200, contact data, phone book data, messages, pictures, videos, etc. The memory 204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, 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 disk or optical disk.

[0181] The power component 206 provides power to the various components of the device 200. The power component 206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 200.

[0182] The multimedia component 208 includes a screen that provides an output interface between the device 200 and the user. In some embodiments, 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 the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 208 includes a front camera and / or a rear camera. When the device 200 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0183] The audio component 210 is configured to output and / or input audio signals. For example, the audio component 210 includes a microphone (MIC), and when the device 200 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 204 or sent via the communication component 216. In some embodiments, the audio component 210 also includes a speaker for outputting audio signals.

[0184] I / O interface 212 provides an interface between processing component 202 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0185] The sensor assembly 214 includes one or more sensors for providing various aspects of the status assessment of the device 200. For example, the sensor assembly 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, the sensor assembly 214 can also detect the position change of the device 200 or a component of the device 200, the presence or absence of user contact with the device 200, the orientation or acceleration / deceleration of the device 200 and the temperature change of the device 200. The sensor assembly 214 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 214 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 214 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0186] The communication component 216 is configured to facilitate wired or wireless communication between the device 200 and other devices. The device 200 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 216 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0187] In an exemplary embodiment, the apparatus 200 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electrically specified elements to perform the above methods.

[0188] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 204 including instructions, and the instructions can be executed by the processor 220 of the device 200 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0189] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0190] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0191] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0192] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modifications, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure.

[0193] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A physical downlink control channel monitoring method, characterized in that: Applied to a terminal, the physical downlink control channel monitoring method includes: In response to the terminal being configured with a first search space set and a second search space set having a link relationship, and determining that there are multiple physical downlink control channel candidate resources at a time domain position overlapping with a monitoring time of a second physical downlink control channel candidate resource of the second search space set, determining whether a first physical downlink control channel candidate resource of the first search space set is monitored, wherein the first physical downlink control channel candidate resource and the second physical downlink control channel candidate resource have a link relationship; Based on the monitoring priority of the second physical downlink control channel candidate resource among the multiple physical downlink control channel candidate resources, the second physical downlink control channel candidate resource is monitored; wherein, in response to determining that the first physical downlink control channel candidate resource of the first search space set is monitored, the second physical downlink control channel candidate resource has the highest monitoring priority among the multiple physical downlink control channel candidate resources; in response to determining that the first physical downlink control channel candidate resource of the first search space set is not monitored, the second physical downlink control channel candidate resource has the lowest monitoring priority among the multiple physical downlink control channel candidate resources.

2. The downlink control channel monitoring method according to claim 1, characterized in that: Monitoring the second physical downlink control channel candidate resource includes: Based on the quasi co-sited QCL type D of the control resource set corresponding to the second search space set, the second physical downlink control channel candidate resources are monitored.

3. The physical downlink control channel monitoring method according to claim 1, characterized in that: The monitoring priority of the second physical downlink control channel candidate resource is determined based on a second search space set corresponding to the second physical downlink control channel candidate resource.

4. The physical downlink control channel monitoring method according to claim 1, determining whether the first physical downlink control channel candidate resource of the first search space set is monitored, comprising: A monitoring priority of a first search space set is determined, and whether a first physical downlink control channel candidate resource of the first search space set is monitored is determined according to the monitoring priority.

5. The physical downlink control channel monitoring method according to claim 3 or 4, characterized in that: The monitoring priority of the first search space set and / or the second search space set is determined based on the attribute information of the search space set.

6. The physical downlink control channel monitoring method according to claim 5, characterized in that: The attribute information of the search space set includes at least one of the following: an index of a serving cell to which the search space set belongs, a type of the search space set, a search space set identifier of the search space set, link relationship information of the search space set, and an identifier of a search space set pair consisting of two search space sets having a link relationship including the search space set; Among them, 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 has no link relationship with any search space set, or that the search space set has a link relationship with another search space set.

7. The physical downlink control channel monitoring method according to claim 6, characterized in that: The identifier of the search space set pair consisting of two search space sets having a link relationship including the search space set is a network device configuration, or is a search space set identifier corresponding to the search space set with a smaller search space set identifier among the two search space sets.

8. The physical downlink control channel monitoring method according to claim 5, characterized in that: 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 smaller the serving cell index to which the search space set belongs, the higher the monitoring priority; The monitoring priority of the general search space set is higher than the monitoring priority of the terminal-specific search space set; The smaller the search space set identifier of the search space set, the higher the monitoring priority; The smaller the identifier of the search space set pair corresponding to the search space set, the higher the monitoring priority; The monitoring priority of a search space set that has a link relationship with other search space sets is higher than that of a search space set that does not have a link relationship with other search space sets; The monitoring priority of a search space set configured with multiple transmission configuration indication states is higher than the monitoring priority of a search space set configured with only one transmission configuration indication state.

9. A physical downlink control channel monitoring device, characterized in that: Applied to a terminal, the physical downlink control channel monitoring device comprises: A processing unit is configured to, in response to the terminal being configured with a first search space set and a second search space set having a link relationship, determine whether a first physical downlink control channel candidate resource of the first search space set is monitored in a time domain position overlapping with a monitoring time of a second physical downlink control channel candidate resource of the second search space set, wherein the first physical downlink control channel candidate resource and the second physical downlink control channel candidate resource have a link relationship; A monitoring unit is configured to monitor the second physical downlink control channel candidate resource based on the monitoring priority of the second physical downlink control channel candidate resource among the multiple physical downlink control channel candidate resources; wherein, in response to the processing unit determining that the first physical downlink control channel candidate resource of the first search space set is monitored, the monitoring unit determines that the second physical downlink control channel candidate resource has the highest monitoring priority among the multiple physical downlink control channel candidate resources; in response to determining that the first physical downlink control channel candidate resource of the first search space set is not monitored, the monitoring unit determines that the second physical downlink control channel candidate resource has the lowest monitoring priority among the multiple physical downlink control channel candidate resources.

10. A physical downlink control channel monitoring device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to: execute the physical downlink control channel monitoring method as described in any one of claims 1 to 8.

11. A storage medium, characterized in that: The storage medium stores instructions, and when the instructions in the storage medium are executed by a processor of the terminal, the terminal is enabled to execute the physical downlink control channel monitoring method as described in any one of claims 1 to 8.

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