CSS monitoring method and device

Abstract

To solve the problem that the related art does not provide an effective CSS monitoring means and transmission parameter inconsistency is easily caused, the embodiments of the present application disclose a common search space CSS monitoring method and a terminal, which includes a step of a terminal monitoring physical downlink control channel (PDCCH) candidates in a CSS set, and the terminal uses first information that is the same as that of an anchor node or a cell / transmission / reception point (TRP) associated with the CSS set.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application filed in China on August 7, 2020, bearing application number 202010790276.X and titled "CSS monitoring method and terminal," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and in particular to a Common Search Space (CSS) monitoring method and terminal. [Background technology]

[0003] Search Space is divided into CSS and UE Specific Search Space (USS), CSS is a common search space for cells, shared by all users in the cell, and is often used for transmitting broadcast information. Due to the special nature of CSS, corresponding monitoring restrictions are required in mobility scenarios such as cell switching, but related technologies do not provide effective CSS monitoring means, and problems such as transmission parameter inconsistency are likely to occur. Summary of the Invention

[0004] The embodiments of the present application provide a CSS monitoring method and terminal to solve the problem that no effective CSS monitoring means is provided in the related art and transmission parameter inconsistencies are likely to occur.

[0005] In a first aspect, a CSS monitoring method is provided, comprising a step of a terminal monitoring physical downlink control channel (PDCCH) candidates in a CSS set, in which the terminal uses the same first information as an anchor node or uses the same first information as a cell / transmission / reception point (TRP) associated with the CSS set.

[0006] In a second aspect, a terminal is provided that includes a monitoring module for monitoring physical downlink control channel PDCCH candidates in a CSS set, the monitoring module using the same first information as an anchor node or using the same first information as a cell / TRP associated with the CSS set.

[0007] In a third aspect, there is provided a terminal comprising a processor, a memory and a program or command stored in the memory and executable on the processor, the program or command being executed by the processor to realise the method according to the first aspect.

[0008] In a fourth aspect, there is provided a readable storage medium having stored thereon a program or commands which, when executed by a processor, results in the method of the first aspect.

[0009] In a fifth aspect, there is provided a chip comprising a processor and a communications interface, the communications interface coupled to the processor, the processor for executing programs or commands to implement the method of the first aspect.

[0010] In an embodiment of the present application, the terminal can monitor PDCCH candidates in the CSS set by using the same first information as the anchor node or the same first information as the cell / TRP associated with the CSS set, thereby avoiding problems such as transmission parameter inconsistency and improving communication effectiveness. [Brief description of the drawings]

[0011] [Figure 1] 1 is a block diagram of a wireless communication system according to one embodiment of the present application. [Diagram 2] 2 is a schematic flowchart of a CSS monitoring method according to an embodiment of the present application; [Diagram 3] FIG. 2 is a structural schematic diagram of a terminal according to an embodiment of the present application; [Figure 4]FIG. 2 is a structural schematic diagram of a communication device according to an embodiment of the present application; [Diagram 5] FIG. 2 is a structural schematic diagram of a terminal according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative efforts are within the scope of protection of the present application.

[0013] The terms "first", "second", etc. in the specification and claims of the present application are not intended to describe a particular order or sequence, but are intended to distinguish between similar objects. The terms used in this manner may be substituted for each other where appropriate so that the embodiments of the present application may be performed in an order other than that shown or described herein, and it should be understood that the objects distinguished by "first", "second", etc. generally belong to one category, the number of objects is not limited, and for example, the first object may be one or more. In the specification and claims, "and / or" indicates at least one of the objects connected, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0014] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the techniques described can be used in other systems and wireless technologies in addition to the systems and wireless technologies mentioned above. However, it should be understood that these technologies may be used in other systems and wireless technologies, such as 6th Generation (6G) and 7th Generation (7G) systems. th For purposes of illustration, the following description will describe a New Radio (NR) system, and NR terminology will be used in much of the following description, although the description may also be applicable to applications other than NR system applications, such as 6G (6th Generation) communication systems.

[0015] FIG. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (vehicle UE, VUE), a pedestrian terminal (PUE), etc., and the wearable device includes a wristband, an earphone, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side equipment 12 may be a base station or a core network, and the base station may be called a Node B, an evolved Node B, an access point, a base station transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a next generation Node B (gNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or any other suitable term in the field, and as long as the same technical effect can be achieved, the base station is not limited to a specific technical term, and it should be noted that in the embodiments of this application, only a base station in an NR system is taken as an example, but the specific type of the base station is not limited.

[0016] Hereinafter, the common search space (CSS) monitoring method and terminal provided in the embodiments of the present application will be described in detail with reference to the drawings through specific embodiments and application scenarios.

[0017] As shown in FIG. 2, an embodiment of the present application provides a CSS monitoring method 200, which can be performed by a terminal, in other words, the method can be performed by software or hardware installed in the terminal, and the method includes the following steps:

[0018] At S202, the terminal monitors Physical Downlink Control Channel (PDCCH) candidates in a CSS set, and the terminal uses the same first information as an anchor node or uses the same first information as a cell or a transmission / reception point associated with the CSS set.

[0019] S202 is applicable to mobility scenarios, such as cell switching, inter-cell MTRP switching, intra-cell MTRP switching, and the like.

[0020] Optionally, the first information may include at least one of cell configuration information, related configuration information of a CSS set, beam information, a default beam, a reference signal for path loss calculation reference, timing related information, scrambling information, and a Radio Network Temporary Identity (RNTI).

[0021] Regarding the terminal mentioned in the embodiment using the same first information as the anchor node, for example, when the first information is a default beam, the terminal uses the default beam of the anchor node to monitor PDCCH candidates in the CSS set, and for example, when the first information is cell setting information, the terminal uses the cell setting information of the anchor node to monitor PDCCH candidates in the CSS set.

[0022] Using the same first information as the cell / TRP associated with the CSS set mentioned in the embodiment includes, for example, monitoring PDCCH candidates in the CSS set using the same first information as the TRP / cell depending on which TRP / cell the CSS set is associated with / belongs to. For example, the terminal monitors PDCCH candidates in the CSS set using a default beam of the cell / TRP associated with the CSS set. Also, for example, the terminal monitors PDCCH candidates in the CSS set using timing-related information of the cell / TRP associated with the CSS set.

[0023] Regarding which TRP / cell the CSS set mentioned in the embodiment is associated with / belongs to, for example, depending on which TRP / cell the CSS set is configured by, the CSS set may be associated with / belong to the TRP / cell that provides the configuration, or depending on which TRP's control resource set resource pool index (CORESETPoolIndex) / TRP identifier (ID) is configured in the CSS set, or which cell's physical cell identifier (Physical Cell Identifier, PCI), other cell identifier information or associated information, etc. is configured in the CSS set, the CSS set may be associated with / belong to the TRP / cell corresponding to the CORESETPoolIndex / TRP identifier, PCI.

[0024] In an embodiment of the present application, the terminal can monitor PDCCH candidates in the CSS set by using the same first information as the anchor node or the same first information as the cell / TRP associated with the CSS set, thereby avoiding problems such as transmission parameter inconsistency and improving communication effectiveness.

[0025] Alternatively, using the same first information as the anchor node mentioned in embodiment 200 or using the same first information as the cell / TRP associated with the CSS set may include at least one of the following 1) to 5).

[0026] 1) When the terminal monitors PDCCH candidates in the Type 0-PDCCH CSS set, the terminal uses the same first information as the anchor node. In this example, the terminal is available for receiving System Information Block 1 (SIB1) by monitoring PDCCH candidates in the Type 0-PDCCH CSS set. Specifically, for example, the terminal monitors PDCCH candidates in the Type0-PDCCH CSS set using the default beam of the anchor node.

[0027] 2) When the terminal monitors PDCCH candidates in the Type0A-PDCCH CSS set, the terminal uses the same first information as the anchor node. In this example, the terminal may monitor PDCCH candidates in the Type0A-PDCCH CSS set to receive other system information blocks (SIBs), which may be SIBs other than SIB1.

[0028] 3) When the terminal monitors PDCCH candidates in the Type1-PDCCH CSS set, the terminal uses the same first information as the cell / TRP associated with the Type1-PDCCH CSS set. In this example, the terminal monitors PDCCH candidates in the Type1-PDCCH CSS set, which can be used to receive random access (RA) information 2 (msg2) and information 4 (msg4) scheduled by the network side device, and can also be used to receive random access information B (msgB) scheduled by the network side device.

[0029] 4) When the terminal monitors PDCCH candidates in the Type2-PDCCH CSS set, the terminal uses the same first information as the anchor node or uses the same first information as the cell / TRP associated with the Type2-PDCCH CSS set. In this example, the terminal can use the PDCCH candidates in the Type2-PDCCH CSS set to receive a paging message (Paging).

[0030] 5) When the terminal monitors PDCCH candidates in the Type 3-PDCCH CSS set, the terminal uses the same first information as the cell / TRP associated with the Type 3-PDCCH CSS set. In this example, the terminal can use the PDCCH candidates in the Type3-PDCCH CSS set to realize many functions, which can be distinguished by different scrambling information, such as a pre-emption indication radio network temporary identifier (Indication pre-emption-RNTI, INT-RNTI), a slot format indication radio network temporary identifier (SFI-RNTI), a transmit power control physical uplink shared channel radio network temporary identifier (TPC-PUSCH-RNTI), a transmit power control physical uplink control channel radio network temporary identifier (TPC-PUCCH-RNTI), a transmit power control sounding reference signal radio network temporary identifier (TPC-SRS-RNTI), a cancellation indication radio network temporary identifier (Cancellation indication-RNTI, CI-RNTI), and a persistent scheduling radio network temporary identifier (PS-RNTI).

[0031] Optionally, the first information mentioned in each of the above embodiments is used in at least one of the following cases or scenes 1) and 2). 1) When the terminal monitors PDCCH candidates in the CSS set, i.e., when performing S202, for example, when the terminal monitors PDCCH candidates in the CSS set in a downlink bandwidth part (BWP), the terminal uses the first information. 2) When the terminal transmits a target channel or signal scheduled / associated with downlink control information (DCI) monitored in the PDCCH candidate. For example, when the terminal transmits a target channel or signal, the terminal uses the first information.

[0032] The target channel or signal may include one of a Physical Downlink Shared Channel (PDSCH), a Channel State Information-Reference Signal (CSI-RS), a Synchronization Signal and PBCH block (SSB), a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Sounding Reference Signal (SRS), and a Physical Random Access Channel (PRACH).

[0033] Optionally, in each of the above embodiments, when the terminal uses the same first information as a cell / TRP associated with the CSS set, the terminal does not use the first information of a cell / TRP not associated with the CSS set.

[0034] In one example, the first information includes a Transmission Configuration Indicator (TCI), where a reference signal indicated by a TCI identifier of the CSS set belongs to a cell / TRP associated with the CSS set, and a reference signal indicated by a TCI identifier of the CSS set does not belong to a cell / TRP not associated with the CSS set. For example, a network configures two sets of TCI lists, and there are overlapping TCI identifiers in the two sets of TCI lists, where TCI list 1 is for cell 1 and TCI list 2 is for cell 2, so that when the CSS set uses the same first information as cell 1, the TCI identifier of the CSS set corresponds to the pseudo-collocation information or reference signal corresponding to the corresponding TCI identifier in TCI list 1, and when the CSS set uses the same first information as cell 2, the TCI identifier of the CSS set corresponds to the pseudo-collocation information or reference signal corresponding to the corresponding TCI identifier in TCI list 2.

[0035] Optionally, the reference signal indicated by the TCI identifier of the CSS set includes at least one of a reference signal in quasi-collocation information in a TCI identifier configured by the network of the associated CORESET of the CSS set by a Radio Resource Control signaling / unit (Radio Resource Control, RRC) and activated by a Media Access Control - Control Element (MAC CE) and a reference signal in quasi-collocation information in a TCI identifier in information carried in a DCI monitored in the CSS set.

[0036] Specifically, for example, when the first information is a TCI, the network side device may set the same TCI identifier for multiple cells, and if the TCI identifier targets different Quasi-Co-Location (QCL) reference signals, the TCI identifier of the CSS set can target only the QCL reference signals of the associated cells / TRPs, and cannot target the QCL reference signals of unassociated cells / TRPs.

[0037] The first information mentioned in the above embodiment includes at least one of: 1) cell setting information, 2) related setting information of a CSS set, 3) beam information, 4) default beam, 5) reference signal for path loss calculation reference, 6) timing related information, 7) scrambling information, and 8) RNTI.

[0038] The contents of the first information will be described in detail below using several examples.

[0039] The cell configuration information mentioned in 1) above may include at least one of a cell group configuration (CellGroupConfig), a special cell configuration (SpCellConfig), a synchronous reconfiguration (ReconfigurationWithSync), a serving cell configuration (ServingCellConfig), a serving cell common configuration (ServingCellConfigCommon), etc.

[0040] The related configuration information of the CSS set mentioned in 2) above may include frequency domain information and time domain information. The frequency domain information is CORESET related configuration information, such as frequency domain resources, periodicity, control channel element resource element group mapping type (cce-REG-MappingType), precoding granularity, TCI, beam related information, etc. The time domain information is search space related configuration information, such as control resource set identifier (controlResourceSetId), monitoring slot periodicity and offset (monitoringSlotPeriodicityAndOffset), periodicity, monitoring symbols within slot (monitoringSymbolsWithinSlot), etc.

[0041] The beam information may be a TCI set by the network through the RRC, or may be a TCI set by the network through the RRC and activated by the MAC CE. The TCI includes QCL information in a TCI identifier, or a reference signal in the QCL information in a TCI identifier.

[0042] The beam information mentioned in 3) above will be explained below with some examples.

[0043] In one example, the first information includes beam information; a) When the network configures / activates / indicates a TCI for a downlink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, the beam information is the TCI of a cell / TRP associated with the CSS set. For example, for a downlink (DL) signal or channel such as a PDCCH / Physical Downlink Shared Channel (PDSCH) / Synchronization Signal and PBCH block (SSB) / Channel State Information-Reference Signal (CSI-RS) scheduled / associated to a DCI monitored in the PDCCH candidate, when the network configures or activates or indicates a TCI, the beam information is the TCI of a cell / TRP associated with the CSS set, where the RS in the TCI refers to the RS in the TCI of a cell / TRP associated with the CSS set, since the IDs of the TCI / RS of different cells / TRPs may be the same.

[0044] b) When the network configures / activates / indicates TCI / space related information for an uplink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, the beam information is the TCI / space related information of a cell / TRP associated with the CSS set. For example, when a network side device sets or activates or indicates TCI / space-related information for an uplink (UL) signal or channel such as a Physical Uplink Shared Channel (PUSCH) / Physical Uplink Control Channel (PUCCH) / Sounding Reference Signal (SRS) / Physical Random Access Channel (PRACH) scheduled / associated with a DCI monitored in the PDCCH candidate, the beam information is the TCI / space-related information of a cell / TRP associated with the CSS set. Here, the RS in the TCI / space-related information refers to the RS of the associated cell / TRP.

[0045] c) When the network configures / activates / indicates TCI / space related information, the RS in said TCI / space related information belongs to a cell / TRP associated with said CSS set. For example, when a network side device configures, activates, or indicates TCI / space related information for a DL, UL signal or channel scheduled / associated with a DCI monitored in the PDCCH candidate, the RS in the TCI / space related information must belong to a cell / TRP associated with a CSS set or must not belong to a cell / TRP not associated with the CSS set.

[0046] In another example, the first information includes a default beam, the default beam satisfying at least one of the following a) and b):

[0047] a) For a downlink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, when the network side equipment has not configured / activated / indicated a TCI, the default beam is the beam used by the downlink channel or signal. For example, for a PDCCH / PDSCH scheduled / associated with a DCI monitored in the PDCCH candidate, when the network side equipment has not configured a TCI or has not activated a TCI or has not indicated a TCI, the default beam is the default beam used by the PDCCH / PDSCH.

[0048] b) For an uplink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, when the network side equipment has not configured / activated / indicated TCI / space-related information, the default beam is the beam used by the uplink channel or signal. For example, when the network side equipment does not configure TCI / space related information, does not activate TCI / space related information, or does not indicate TCI / space related information for a PUSCH / PUCCH / SRS / PRACH scheduled / associated with a DCI monitored in the PDCCH candidate, the default beam is the beam used by the PUSCH / PUCCH / SRS / PRACH.

[0049] For the default beam mentioned in each of the above examples, the reference signal associated with the default beam includes at least one of: a) a synchronization signal physical broadcast channel block (SSB) during cell initial access; b) a pseudo-co-location reference signal of a control resource set (CORESET) with the smallest number associated with an active bandwidth part (BWP); c) a pseudo-co-location reference signal of a CORESET with the smallest number associated with an active BWP corresponding to a TRP; d) a pseudo-co-location reference signal of a TCI with the smallest number associated with an active BWP; and e) a pseudo-co-location reference signal of an active TCI with the smallest number associated with an active BWP.

[0050] Optionally, when the network has not set any beam information and / or TCI information and / or CORESET, the default beam is derived from the SSB at the initial cell access.

[0051] Alternatively, if the network configures / provides a CORESET, the default beam is derived from the TCI / pseudo collocation information of the lowest numbered CORESET associated with the active BWP.

[0052] Alternatively, if the network configures / provides a CORESET and configures / activates multiple TRPs, the default beam is derived from the TCI / quasi-colocation information of the CORESET with the smallest number associated with an active BWP, and the active BWP corresponds to the TRP. The TRP identifier can be obtained by configuration in the CORESET, for example, the TRP identifier may be a CORESETPoolIndex in the CORESET, which indicates that the CORESET is associated / belongs to the TRP corresponding to the TRP identifier. The active BWP corresponds to a TRP may mean that the active BWP is the TRP associated / belongs to the CORESET.

[0053] Alternatively, if the network does not configure / provide a CORESET but does configure a TCI list, the default beam is derived from the lowest numbered TCI associated with the active BWP.

[0054] Alternatively, if the network does not configure / provide a CORESET but configures a TCI list and activates at least one TCI, the default beam is derived from the active TCI with the lowest number associated with the active BWP.

[0055] Optionally, the first information includes the default beam, the network activates the use of the default beam, and / or the terminal supports the use of the default beam.

[0056] Alternatively, the first information includes the default beam, and the step of the terminal monitoring PDCCH candidates in a CSS set includes a step of the terminal monitoring PDCCH candidates in a CSS set when the network has not configured / activated / indicated a TCI.

[0057] For example, for a PDSCH / PUSCH / PUCCH / SRS / PRACH scheduled / associated with a DCI monitored in the PDCCH candidate, the network side device has not configured a TCI, or has not activated a TCI, or has not indicated a TCI.

[0058] Regarding the reference signal for path loss calculation reference mentioned in 5) above, optionally, the reference signal for path loss calculation reference (PathLoss reference RS, PL RS) is usually used by PUSCH / PUCCH / SRS / PRACH scheduled / associated with DCI monitored in the PDCCH candidate. Optionally, the PL RS includes a default PL RS when the network has not configured a PL RS for the corresponding channel or signal, and / or the network has activated the use of a default PL RS, and / or the network has not configured space-related information for the corresponding channel or signal. Optionally, the default PL RS is the same as the reference signal associated with a default beam, or adopts the same set or rules as the reference signal associated with a default beam.

[0059] Regarding the timing related information mentioned in 6) above, in uplink, the timing related information may be timing information, and in downlink, the timing related information may be timing advance information. Optionally, the timing information includes the difference between the timing information of the own cell / TRP and the adjacent cell / adjacent TRP, or the difference between the timing advance information.

[0060] Regarding the scrambling information mentioned in 7) above, optionally, the scrambling information includes at least one of: a physical downlink control channel demodulation reference signal scrambling identifier pdcch-DMRS-ScramblingID; a scrambling identifier ScramblingId; a data scrambling identifier physical downlink shared channel dataScramblingIdentityPDSCH; a hopping identifier hoppingId; and a data scrambling identifier physical uplink shared channel dataScramblingIdentityPUSCH.

[0061] Specifically, for example, for the PDCCH, the scrambling information is pdcch-DMRS-ScramblingID, for the CSI-RS / NZP-CSI-RS, the scrambling information is ScramblingId, for the PDSCH, the scrambling information is dataScramblingIdentityPDSCH, for the PUCCH, the scrambling information is hoppingId, and for the PUSCH, the scrambling information is dataScramblingIdentityPUSCH.

[0062] Regarding the RNTI mentioned in 8) above, optionally, the RNTI includes at least one of a cell radio network temporary identifier C-RNTI, a modulation and coding scheme cell radio network temporary identifier mcs-C-RNTI, a configured scheduling radio network temporary identifier CS-RNTI, a system information radio network temporary identifier SI-RNTI, a paging radio network temporary identifier P-RNTI, a random access radio network temporary identifier RA-RNTI, and a temporary cell radio network temporary identifier TC-RNTI.

[0063] Optionally, the step of the terminal monitoring PDCCH candidates in the CSS set described in each of the above embodiments is performed when at least one of the following 1) to 7) is satisfied. 1) At least one CORESET is switched / associated with the target cell / neighbor cell, for example, the first CORESET is switched / associated with the target cell / neighbor cell, or for example, any CORESET is switched / associated with the target cell / neighbor cell. 2) A special TRP is switched / associated with a target cell / neighboring cell. In this example, a certain special TRP may be used as a criterion, and only when the special TRP is switched / associated with a target cell / neighboring cell, the execution condition of S202 may be deemed to be met, and when another TRP is switched / associated with a target cell / neighboring cell, the execution condition of S202 may not be deemed to be met. 3) The anchor node is switched / associated with the target cell / neighboring cell. 4) When the anchor node is unchanged and there are multiple TRPs, cells that are not associated with the anchor node's TRP are switched / associated with the target cell / neighbor cell. 5) The configuration information for the new cell was used. 6) The PDCCH is switched / associated with the target cell / neighboring cell. 7) The special cell (sPcell) is switched / associated with the target cell / neighbor cell.

[0064] The first CORESET mentioned in 1) above includes one of a CORESET numbered 0, a CORESET with the smallest number, a CORESET with the largest number, a CORESET associated with a common search space, a CORESET indicated by a network side device, a CORESET reported by the terminal, a CORESET associated with a special TRP, and a predefined CORESET.

[0065] The special TRP mentioned in 2) above includes one of a TRP with number 0, a TRP with the smallest number, a TRP with the largest number, a TRP associated with a common search space, a TRP indicated by a network side device, a TRP reported by the terminal, a predefined TRP, and a TRP associated with a special CORESET, and the special CORESET is the one with number 0, the one with the smallest number, the one with the largest number, or the one associated with a common search space.

[0066] Regarding the use of the new cell configuration information mentioned in 5) above, in this example, the new cell configuration information may include upper layer configuration information and physical layer configuration information; a) The higher layer configuration information includes at least one of a cell group configuration CellGroupConfig, a special cell configuration SpCellConfig, a synchronous reconfiguration ReconfigurationWithSync, a serving cell common configuration ServingCellConfigCommon, and a serving cell configuration ServingCellConfig. b) The physical layer configuration information includes at least one of Transmission Configuration Indication (TCI) information, Quasi Co-Location (QCL) information, PathLoss reference RS (PL RS), Random Access Channel (RACH) resources, scrambling information, timing information, and timing advance information.

[0067] Optionally, being switched to / associated with the target cell / neighboring cell mentioned in examples 1), 2), 3), 4), 6), and 7) above includes at least one of the following a) to c): a) The cell / TRP identifier information of the target cell / neighboring cell is associated / set in the configuration information. For example, the cell / TRP identifier information of the target cell / neighboring cell is set in the configuration information of the beam information / TCI of the CORESET / TRP / anchor node / PDDCH / cell, or the beam information / TCI of the CORESET / TRP / anchor node / PDDCH / cell is associated with or belongs to the target cell / neighboring cell. Also, for example, the cell / TRP identifier information of the target cell / neighboring cell is set in the configuration information of the CORESET / TRP / anchor node / PDDCH / cell. b) Beam reference information is associated with the target cell / neighboring cell, for example, beam reference information of the CORESET / TRP / anchor node / PDDCH / cell is associated with the target cell / neighboring cell. c) Beam reference information of the associated CORESET is associated with the target cell / neighboring cell, for example, beam reference information of the configured / associated CORESET of the CORESET / TRP / anchor node / PDDCH / cell is associated with the target cell / neighboring cell.

[0068] Optionally, the cell / TRP identifier information of the target cell / neighboring cell being associated / configured in the configuration information includes at least one of the following a) to c): a) The cell / TRP identifier information of the target cell / neighboring cell is configured in a TCI, for example, the cell / TRP identifier information of the target cell / neighboring cell is configured in a configured / associated TCI of the CORESET / TRP / anchor node / PDDCH / cell. b) The cell / TRP identifier information of the target cell / neighboring cell is set in a QCL reference signal in a TCI, for example, the cell / TRP identifier information of the target cell / neighboring cell is set in a QCL reference signal in a configured / associated TCI of the CORESET / TRP / anchor node / PDDCH / cell. c) A QCL reference signal in a TCI is associated with the target cell / neighboring cell, e.g., a QCL reference signal in a configured / associated TCI of the CORESET / TRP / anchor node / PDDCH / cell is associated with the target cell / neighboring cell.

[0069] It should be noted that the CSS monitoring method provided in the embodiment of the present application may be executed by a terminal, or may be executed by a control module for executing the CSS monitoring method in the terminal. In the embodiment of the present application, the terminal provided in the embodiment of the present application is taken as an example to execute the CSS monitoring method.

[0070] FIG. 3 is a structural schematic diagram of a terminal according to an embodiment of the present application. As shown in FIG. 3, the terminal 300 includes a monitoring module 302 that can be used to monitor PDCCH candidates in a CSS set, and the monitoring module uses the same first information as an anchor node or uses the same first information as a cell / TRP associated with the CSS set.

[0071] In an embodiment of the present application, the terminal can monitor PDCCH candidates in the CSS set by using the same first information as the anchor node or the same first information as the cell / TRP associated with the CSS set, thereby avoiding problems such as transmission parameter inconsistency and improving communication effectiveness.

[0072] Optionally, as an embodiment, using the same first information as the anchor node or using the same first information as the cell / TRP associated with the CSS set includes at least one of: using the same first information as the anchor node when the monitoring module 302 monitors PDCCH candidates in a Type0-PDCCH CSS set; using the same first information as the anchor node when the monitoring module 302 monitors PDCCH candidates in a Type0A-PDCCH CSS set; using the same first information as the cell / TRP associated with the CSS set when the monitoring module 302 monitors PDCCH candidates in a Type1-PDCCH CSS set; using the same first information as the anchor node or using the same first information as the cell / TRP associated with the CSS set when the monitoring module 302 monitors PDCCH candidates in a Type2-PDCCH CSS set; and using the same first information as the cell / TRP associated with the CSS set when the monitoring module 302 monitors PDCCH candidates in a Type3-PDCCH CSS set.

[0073] Optionally, as one embodiment, the first information is used in at least one of the following cases: when the terminal monitors PDCCH candidates in the CSS set; and when the terminal transmits a target channel or signal scheduled / associated with DCI monitored in the PDCCH candidates.

[0074] Optionally, in one embodiment, when the terminal uses the same first information as a cell / TRP associated with the CSS set, the terminal does not use the first information of a cell / TRP not associated with the CSS set.

[0075] Optionally, as one embodiment, the first information includes a transmission configuration indication (TCI), and a reference signal indicated by a TCI identifier of the CSS set belongs to a cell / TRP associated with the CSS set, and a reference signal indicated by a TCI identifier of the CSS set does not belong to a cell / TRP not associated with the CSS set.

[0076] Optionally, as one embodiment, the first information includes at least one of cell configuration information, related configuration information of the CSS set, beam information, a default beam, a reference signal for path loss calculation reference, timing related information, scrambling information, and an RNTI.

[0077] Optionally, as one embodiment, the first information includes the beam information, and if the network configures / activates / indicates a TCI for a downlink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, the beam information is a TCI of a cell / TRP associated with the CSS set, or if the network configures / activates / indicates TCI / space-related information for an uplink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, the beam information is a TCI / space-related information of a cell / TRP associated with the CSS set, or if the network configures / activates / indicates TCI / space-related information, the RS in the TCI / space-related information belongs to a cell / TRP associated with the CSS set.

[0078] Optionally, in one embodiment, the first information includes the default beam, and the default beam is 1) For a downlink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, when the network has not configured / activated / indicated a TCI, the default beam is the beam used by the downlink channel or signal; 2) For an uplink channel or signal scheduled / associated with a DCI monitored in the PDCCH candidate, when the network has not configured / activated / indicated TCI / space-related information, the default beam is the beam used by the uplink channel or signal.

[0079] Optionally, as one embodiment, the first information includes the default beam, and the reference signal associated with the default beam includes at least one of a synchronous broadcast block SSB at cell initial access, a pseudo-colocation reference signal of a control resource set CORESET with the smallest number associated with an active bandwidth portion BWP, a pseudo-colocation reference signal of a CORESET with the smallest number associated with an active BWP corresponding to a TRP, a pseudo-colocation reference signal of a TCI with the smallest number associated with an active BWP, and a pseudo-colocation reference signal of an active TCI with the smallest number associated with an active BWP.

[0080] Optionally, as one embodiment, the first information includes the default beam, the network activates the use of the default beam, and / or the terminal supports the use of the default beam.

[0081] Optionally, as one embodiment, the first information includes the default beam, and the step of the terminal monitoring PDCCH candidates in a CSS set includes a step of the terminal monitoring PDCCH candidates in a CSS set when the network has not configured / activated / indicated a TCI.

[0082] Optionally, as one embodiment, the scrambling information includes at least one of a physical downlink control channel demodulation reference signal scrambling identifier pdcch-DMRS-ScramblingID, a scrambling identifier ScramblingId, a data scrambling identifier physical downlink shared channel dataScramblingIdentityPDSCH, a hopping identifier hoppingId, and a data scrambling identifier physical uplink shared channel dataScramblingIdentityPUSCH.

[0083] Optionally, as one embodiment, the RNTI includes at least one of a cell radio network temporary identifier C-RNTI, a modulation and coding scheme cell radio network temporary identifier mcs-C-RNTI, a configured scheduling radio network temporary identifier CS-RNTI, a system information radio network temporary identifier SI-RNTI, a paging radio network temporary identifier P-RNTI, a random access radio network temporary identifier RA-RNTI, and a temporary cell radio network temporary identifier TC-RNTI.

[0084] Optionally, as one embodiment, the step of the terminal monitoring PDCCH candidates in the CSS set is executed when at least one of the following is satisfied: at least one CORESET is switched / associated with the target cell / neighboring cell; a special TRP is switched / associated with the target cell / neighboring cell; an anchor node is switched / associated with the target cell / neighboring cell; when the anchor node is unchanged and there are multiple TRPs, a cell not associated with the TRP of the anchor node is switched / associated with the target cell / neighboring cell; configuration information of a new cell is used; a PDCCH is switched / associated with the target cell / neighboring cell; and a special cell sPcell is switched / associated with the target cell / neighboring cell.

[0085] Optionally, as one embodiment, being switched to / associated with the target cell / neighboring cell includes at least one of: cell / TRP identifier information of the target cell / neighboring cell being associated / configured in configuration information; beam reference information being associated with the target cell / neighboring cell; and beam reference information of the associated CORESET being associated with the target cell / neighboring cell.

[0086] Optionally, as one embodiment, the cell / TRP identifier information of the target cell / neighboring cell being associated / configured in the configuration information includes the cell / TRP identifier information of the target cell / neighboring cell being configured in a TCI, the cell / TRP identifier information of the target cell / neighboring cell being configured in a QCL reference signal in the TCI, and the QCL reference signal in the TCI being associated with the target cell / neighboring cell.

[0087] The terminal 300 according to the embodiment of the present application only needs to refer to the flow corresponding to the method 200 of the embodiment of the present application, and each unit / module and other operations and / or functions in the terminal 300 are for realizing the corresponding flow in the method 200, respectively, and can achieve the same or equivalent technical effects, and for the sake of brevity, detailed descriptions are omitted here.

[0088] The terminal in the embodiment of the present application may be a component, an integrated circuit, or a chip in the terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminal 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine or a kiosk, etc., and is not specifically limited in the embodiment of the present application.

[0089] The terminal in the embodiment of the present application may be a device having an operating system, which may be the Android operating system, the ios operating system, or other possible operating systems, and is not specifically limited in the embodiment of the present application.

[0090] The terminal provided in the embodiment of the present application can realize each process implemented in the method embodiment of FIG. 2, and can achieve the same technical effects, and in order to avoid duplication, detailed descriptions will be omitted here.

[0091] Optionally, as shown in FIG. 4, an embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, and a program or command stored in the memory 402 and executable on the processor 401; for example, when the communication device 400 is a terminal, when the program or command is executed by the processor 401, each process of the embodiment of the above-mentioned CSS monitoring method is realized, and the same technical effect can be achieved.

[0092] FIG. 5 is a hardware structure schematic diagram of a terminal implementing an embodiment of the present application.

[0093] The terminal 500 includes components such as, but not limited to, a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and a processor 510.

[0094] Those skilled in the art can understand that the terminal 500 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 510 through a power management system, and the power management system may further realize functions such as charge / discharge management and power consumption management. The structure of the terminal shown in FIG. 5 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and detailed descriptions thereof will be omitted here.

[0095] It should be understood that in the embodiment of the present application, the input unit 504 may include a graphics processing unit (GPU) 5041 for processing image data of still or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 5042. The display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 507 includes a touch panel 5071 and other input devices 5072. The touch panel 5071 is also called a touch screen. The touch sensitive panel 5071 may include two parts: a touch detection device and a touch controller. The other input devices 5072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and a control lever, and detailed description thereof will be omitted here.

[0096] In the embodiment of the present application, the high frequency unit 501 receives downlink data from the network side device, processes the data in the processor 510, and transmits uplink data to the network side device. Typically, the high frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0097] The memory 509 can be used to store software programs or commands and various data. The memory 509 may mainly include a program or command storage area and a data storage area that can store an operating system, an application program or command required for at least one function (e.g., a sound playback function, an image playback function, etc.). The memory 509 may also include a high-speed random access memory or a non-volatile memory, among which the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device may be included.

[0098] The processor 510 may include one or more processing units, and may selectively integrate an application processor that mainly processes an operating system, a user interface, and application programs or commands, etc., and a modem processor that mainly processes wireless communication, such as a baseband processor, in the processor 510. It is understandable that the modem processor may not be integrated into the processor 510.

[0099] The processor 510 is used to monitor PDCCH candidates in a CSS set, and the terminal uses the same first information as an anchor node or uses the same first information as a cell / transmission / reception point TRP associated with the CSS set.

[0100] In an embodiment of the present application, the terminal can monitor PDCCH candidates in the CSS set by using the same first information as the anchor node or the same first information as the cell / TRP associated with the CSS set, thereby avoiding problems such as transmission parameter inconsistency and improving communication effectiveness.

[0101] The terminal provided in the embodiment of the present application can also realize each process of the embodiment of the CSS monitoring method described above, and achieve the same technical effects. In order to avoid duplication, detailed descriptions are omitted here.

[0102] An embodiment of the present application further provides a readable storage medium, in which a program or command is stored. When the program or command is executed by a processor, each process of the embodiment of the above-mentioned CSS monitoring method is realized, and the same technical effect can be achieved. In order to avoid duplication, detailed description will be omitted here.

[0103] The processor may be the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0104] An embodiment of the present application further provides a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, and the processor executing a program or command to realize each process of the embodiment of the above-mentioned CSS monitoring method, and the same technical effects can be achieved, and in order to avoid duplication, detailed description will be omitted here.

[0105] It should be understood that the chips referred to in the embodiments of this application may be referred to as system level chips, system chips, chip systems, system on chips, or the like.

[0106] An embodiment of the present application further provides a computer program product, wherein the computer program product is stored in a non-volatile memory, and the computer program product is executed by at least one processor to realize each process of the embodiment of the above-mentioned CSS monitoring method, and to achieve the same technical effects, and in order to avoid duplication, detailed descriptions are omitted here.

[0107] The embodiments of the present application further provide a communication device, which is configured to realize each process of the embodiments of the above-mentioned CSS monitoring method, and can achieve the same technical effects, and in order to avoid duplication, detailed descriptions will be omitted here.

[0108] It should be noted that in this specification, the terms "comprise", "consist of" or any other variations are intended to include a non-exclusive inclusion, whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly stated or inherent to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should also be noted that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions substantially simultaneously or in the reverse order depending on such functions, for example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to any example may be combined in other examples.

[0109] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform, and of course, they can be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solution of the present application can be substantially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of commands that cause a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the embodiments of the present application.

[0110] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. The terminal monitors physical downlink control channel (PDCCH) candidates in a CSS set; The terminal uses the same first information as an anchor node, or uses the same first information as a cell or a transmission / reception point TRP associated with the CSS set; The first information is The terminal monitors PDCCH candidates in the CSS set; and when the terminal transmits a target channel or signal scheduled or associated with downlink control information (DCI) monitored in the PDCCH candidate; The first information is Cell configuration information; and Related setting information of the CSS set; Beam information; Default beam and A reference signal for path loss calculation; Timing related information; Scrambling information; a radio network temporary identifier RNTI; The above-mentioned use of the same first information as the anchor node or the same first information as the cell or TRP associated with the CSS set may include: When the terminal monitors PDCCH candidates in a Type 0-PDCCH CSS set, the terminal uses the same first information as the anchor node; When the terminal monitors PDCCH candidates in a Type 0A-PDCCH CSS set, the terminal uses the same first information as an anchor node; When the terminal monitors PDCCH candidates in a Type 2-PDCCH CSS set, the terminal uses the same first information as an anchor node or uses the same first information as a cell or TRP associated with the CSS set; The step of monitoring PDCCH candidates in a CSS set by the terminal includes: At least one CORESET has been switched to or associated with a target cell or a neighboring cell; and The PDCCH is switched to or associated with the target cell or a neighboring cell, and The above-mentioned switching or association with the target cell or the neighboring cell is The setting information includes that the cell or TRP identifier information of the target cell or neighboring cell is associated or set, Common Search Space CSS Monitoring Method.

2. The above-mentioned use of the same first information as the anchor node or the same first information as the cell or TRP associated with the CSS set may further include When the terminal monitors PDCCH candidates in a Type1-PDCCH CSS set, the terminal uses first information that is the same as a cell or a TRP associated with the CSS set; and using the same first information as a cell or a TRP associated with a Type 3-PDCCH CSS set when the terminal monitors PDCCH candidates in the CSS set.

3. The method according to claim 1, wherein when the terminal uses the same first information as a cell or TRP associated with the CSS set, the terminal does not use the first information of a cell or TRP not associated with the CSS set.

4. The first information includes a transmission configuration indication (TCI); 4. The method of claim 3, wherein a reference signal indicated by a TCI identifier of the CSS set belongs to a cell or TRP associated with the CSS set, and a reference signal indicated by a TCI identifier of the CSS set does not belong to a cell or TRP not associated with the CSS set.

5. the first information includes the beam information; For a downlink channel or signal scheduled or associated with a DCI monitored in the PDCCH candidate, if the network configures, activates or indicates a TCI, the beam information is a TCI of a cell or TRP associated with the CSS set; or When the network configures, activates, or indicates TCI or space-related information for an uplink channel or signal scheduled or associated with a DCI monitored in the PDCCH candidate, the beam information is TCI or space-related information of a cell or TRP associated with the CSS set; or The method of claim 1, wherein when a network configures, activates or indicates TCI or space-related information, a reference signal in the TCI or space-related information belongs to a cell or TRP associated with the CSS set.

6. The first information includes the default beam, and the default beam includes: For a downlink channel or signal scheduled or associated with a DCI monitored in the PDCCH candidate, when the network has not configured or activated or indicated a TCI, the default beam is a beam used by the downlink channel or signal; and / or the default beam is a beam used by an uplink channel or signal scheduled or associated with a DCI monitored in the PDCCH candidate when the network has not configured or activated or indicated TCI or space-related information for the uplink channel or signal; and / or The first information includes the default beam, and a reference signal associated with the default beam is A synchronous broadcast block (SSB) at the time of initial cell access; a pseudo-co-location reference signal of the control resource set CORESET with the smallest number associated with the active bandwidth portion BWP; the lowest numbered CORESET pseudo-co-located reference signal associated with the active BWP corresponding to the TRP; a quasi-co-located reference signal of the lowest numbered TCI associated with an active BWP; and / or the quasi-co-located reference signal of the lowest numbered active TCI associated with the active BWP; The method of claim 1 , wherein the first information includes the default beam, and a network activates use of the default beam and / or the terminal supports use of a default beam.

7. The first information includes the default beam, and the step of monitoring a PDCCH candidate in a CSS set by the terminal includes: The method of claim 1 , comprising the step of the terminal monitoring PDCCH candidates in a CSS set when a TCI has not been configured or activated or indicated by a network.

8. The scrambling information is A physical downlink control channel demodulation reference signal scrambling identifier pdcch-DMRS-ScramblingID; and A scrambling identifier ScramblingId; and A data scrambling identifier physical downlink shared channel dataScramblingIdentityPDSCH; and A hopping identifier hoppingId; a data scrambling identifier physical uplink shared channel (dataScramblingIdentityPUSCH); and

9. The RNTI is A Cell Radio Network Temporary Identifier C-RNTI; and A modulation and coding scheme cell radio network temporary identifier mcs-C-RNTI; A configured Scheduling Radio Network Temporary Identifier CS-RNTI; and A System Information Radio Network Temporary Identifier SI-RNTI; a paging radio network temporary identifier P-RNTI; A random access radio network temporary identifier RA-RNTI; and A Temporary Cell-Radio Network Temporary Identifier (TC-RNTI).

10. The step of monitoring PDCCH candidates in a CSS set by the terminal further includes: A special TRP is switched to or associated with a target cell or a neighboring cell, the special TRP including one of a TRP with number 0, a TRP with the lowest number, a TRP with the highest number, a TRP associated with a CSS, a TRP indicated by a network side device, a TRP reported by the terminal, a predefined TRP, and a TRP associated with a special CORESET, the special CORESET being a TRP with number 0, a TRP with the lowest number, a TRP with the highest number, or a TRP associated with a common search space; the anchor node has switched to or associated with the target cell or a neighboring cell; When the anchor node is unchanged and there are multiple TRPs, a cell that is not associated with the TRP of the anchor node is switched to or associated with a target cell or a neighboring cell; The new cell configuration information was used, The special cell sPcell is switched to or associated with the target cell or the neighboring cell when at least one of the following conditions is satisfied: The above-mentioned switching or associating with the target cell or the neighboring cell further includes: beam reference information associated with the target cell or a neighboring cell; and b. beam reference information of an associated CORESET is associated with the target cell or a neighboring cell.

11. The fact that the cell or TRP identifier information of the target cell or neighboring cell is associated or set in the setting information is The cell or TRP identifier information of the target cell or neighboring cell is set in the TCI; The cell or TRP identifier information of the target cell or the neighboring cell is set in the quasi-co-location QCL reference signal in the TCI; and a QCL reference signal in a TCI associated with the target cell or a neighboring cell.

12. A terminal including a monitoring module for monitoring PDCCH candidates in a CSS set, The monitoring module uses the same first information as an anchor node or uses the same first information as a cell or a transmission / reception point TRP associated with the CSS set; The first information is The terminal monitors PDCCH candidates in the CSS set; and when the terminal transmits a target channel or signal scheduled or associated with downlink control information (DCI) monitored in the PDCCH candidate; The first information is Cell configuration information; and Related setting information of the CSS set; Beam information; Default beam and A reference signal for path loss calculation; Timing related information; Scrambling information; a radio network temporary identifier RNTI; The monitoring module using the same first information as an anchor node or a cell or TRP associated with the CSS set, When the monitoring module monitors PDCCH candidates in a Type 0-PDCCH CSS set, the monitoring module uses the same first information as an anchor node; The monitoring module uses the same first information as the anchor node when monitoring PDCCH candidates in a Type 0A-PDCCH CSS set; When the monitoring module monitors PDCCH candidates in a Type 2-PDCCH CSS set, the monitoring module uses the same first information as an anchor node or uses the same first information as a cell or TRP associated with the CSS set; The step of monitoring PDCCH candidates in a CSS set by the terminal includes: At least one CORESET has been switched to or associated with a target cell or a neighboring cell; and The PDCCH is switched to or associated with the target cell or a neighboring cell, and The above-mentioned switching or association with the target cell or the neighboring cell is The setting information includes that the cell or TRP identifier information of the target cell or neighboring cell is associated or set, Terminal.

13. A readable storage medium having stored thereon a program or command, the program or command being executed by a processor to implement the CSS monitoring method according to any one of claims 1 to 11.

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