Monitoring method and apparatus, terminal and network device

Abstract

The embodiment of the application discloses a kind of monitoring method and device, terminal and network equipment;The method comprises: if there is M associated 2 TCI state CORESET and N associated 1 TCI state CORESET in the CORESET associated with the PDCCH candidate monitored in the PDCCH monitoring occasion overlapping on active downlink bandwidth part BWP, terminal monitors PDCCH in M associated 2 TCI state CORESET and / or N associated 1 TCI state CORESET, M is greater than or equal to 1 integer, N is greater than or equal to 0 integer, so as to realize in the case where terminal supports the CORESET of being configured 2 TCI state, in associated 2 TCI state CORESET and / or associated 1 TCI state CORESET, PDCCH is monitored, so as to guarantee the flexibility, robustness and stability of system communication.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a monitoring method and apparatus, terminal and network device. Background Technology

[0002] The 5th generation new radio (5G NR) protocol developed by the 3rd Generation Partnership Project (3GPP) includes the following: During the monitoring occasion of the physical downlink control channel (PDCCH) overlapping on the active downlink bandwidth part (BWP), if multiple control resource sets (CORESET) associated with the PDCCH candidate have different quasico-location type D (QCL-type D) properties, the terminal needs to monitor the PDCCH according to certain priority criteria.

[0003] However, existing 5G NR protocols typically assume that a terminal can only support a CORESET configured with one Transmission Configuration Indication (TCI) state and can only listen to one PDCCH associated with the QCL-typeD attribute. Therefore, if a terminal supports a CORESET configured with two TCI states, how to listen to the PDCCH requires further investigation. Summary of the Invention

[0004] This application provides a monitoring method and apparatus, a terminal, and a network device, which aim to enable monitoring of PDCCH in CORESETs associated with two TCI states and / or CORESETs associated with one TCI state when the terminal supports CORESETs configured with two TCI states, thereby ensuring the flexibility, robustness, and stability of system communication.

[0005] In a first aspect, embodiments of this application provide a monitoring method, including:

[0006] If, during the PDCCH listening opportunity on the Physical Downlink Control Channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), there are M CORESETs associated with 2 Transmission Configuration Indicator (TCI) states and N CORESETs associated with 1 TCI state among the PDCCH candidate associated control resource sets (CORESETs), then the terminal listens for PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state, where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 0.

[0007] As can be seen in this embodiment, if there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state among the PDCCH candidate associated CORESETs monitored during the PDCCH monitoring time overlapping on the active downlink BWP, then the terminal can monitor the PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state. Thus, when the terminal supports the configuration of CORESETs with 2 TCI states, it can monitor the PDCCH in the CORESETs associated with 2 TCI states and / or the CORESETs associated with 1 TCI state, thereby ensuring the flexibility, robustness and stability of system communication.

[0008] Secondly, embodiments of this application provide a monitoring method, including:

[0009] The network device configures L control resource sets (CORESETs) to the terminal, and during the listening time of the physical downlink control channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), among the L CORESETs, there are M control resource sets (CORESETs) associated with two Transmission Configuration Indicator (TCI) states and N CORESETs associated with one TCI state, where M is an integer greater than or equal to 1, N is an integer greater than or equal to 0, and L is an integer greater than or equal to the sum of M and N.

[0010] As can be seen from the embodiments of this application, during the overlapping PDCCH listening time on the active downlink BWP, among the L CORESETs configured by the network device for the terminal, there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state. Therefore, the terminal can listen to the PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state. Thus, when the terminal supports being configured with CORESETs with 2 TCI states, it can listen to the PDCCH in CORESETs associated with 2 TCI states and / or CORESETs associated with 1 TCI state, thereby ensuring the flexibility, robustness and stability of system communication.

[0011] Thirdly, embodiments of this application provide a listening device, the device including a processing unit, the processing unit being used for:

[0012] If, during the monitoring of the Physical Downlink Control Channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), there are M CORESETs associated with two Transmission Configuration Indicator (TCI) states and N CORESETs associated with one TCI state among the PDCCH candidate associated control resource sets (CORESETs) being monitored, then PDCCH is monitored in the M CORESETs associated with two TCI states and / or the N CORESETs associated with one TCI state, where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 0.

[0013] Fourthly, embodiments of this application provide a listening device, the device including a processing unit, the processing unit being used for:

[0014] L control resource sets (CORESETs) are configured for the terminal. During the listening time of the physical downlink control channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), among the L CORESETs, there are M control resource sets (CORESETs) associated with two Transmission Configuration Indicator (TCI) states and N CORESETs associated with one TCI state. M is an integer greater than or equal to 1, N is an integer greater than or equal to 0, and L is an integer greater than or equal to the sum of M and N.

[0015] Fifthly, embodiments of this application provide a terminal including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the one or more programs include instructions for performing the steps in the first aspect of embodiments of this application.

[0016] In a sixth aspect, embodiments of this application provide a network device including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the one or more programs include instructions for performing the steps in the first aspect of embodiments of this application.

[0017] In a seventh aspect, embodiments of this application provide a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the first or second aspect of embodiments of this application.

[0018] Eighthly, embodiments of this application provide a computer program operable to cause a computer to perform some or all of the steps described in the first or second aspects of embodiments of this application. The computer program may be a software installation package. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of this application;

[0021] Figure 2 This is a flowchart illustrating a monitoring method provided in an embodiment of this application;

[0022] Figure 3 This is a flowchart illustrating another monitoring method provided in an embodiment of this application;

[0023] Figure 4 This is a functional unit block diagram of a listening device provided in an embodiment of this application;

[0024] Figure 5 This is a functional unit block diagram of another monitoring device provided in the embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the structure of a network device provided in an embodiment of this application. Detailed Implementation

[0027] To help those skilled in the art better understand the technical solutions of this application, the technical solutions in the embodiments of this application are described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0028] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, software, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but also includes steps or units not listed, or other steps or units inherent to such processes, methods, products, or apparatus.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] It should be noted that the term "connection" in the embodiments of this application refers to various connection methods, such as direct connection or indirect connection, to achieve communication between devices, and is not limited in any way. The terms "network" and "system" in the embodiments of this application express the same concept; a communication system is a communication network.

[0031] The technical solutions of this application embodiment can be applied to various wireless communication systems, such as: Global System for Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based Access to Unlicensed Spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), and Wireless Local Area Network (WLAN). Networks, WLAN, Wireless Fidelity (WiFi), 6th-Generation (6G) communication systems, or other communication systems, etc.

[0032] It should be noted that traditional wireless communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, wireless communication systems can support not only traditional wireless communication systems, but also communication such as device-to-device (D2D), machine-to-machine (M2M), machine-type communication (MTC), vehicle-to-vehicle (V2V), vehicle-to-everything (V2X), and narrowband internet of things (NB-IoT). Therefore, the technical solutions of the embodiments in this application can also be applied to the above-mentioned wireless communication systems.

[0033] Optionally, the wireless communication system of this application embodiment can be applied to beamforming, carrier aggregation (CA), dual connectivity (DC), or standalone (SA) deployment scenarios.

[0034] Optionally, the wireless communication system of this embodiment can be applied to unlicensed spectrum. Unlicensed spectrum can also be considered as shared spectrum. Alternatively, the wireless communication system of this embodiment can also be applied to licensed spectrum. Licensed spectrum can also be considered as non-shared spectrum.

[0035] Since the embodiments of this application may be described in conjunction with terminals and network devices, the terminals and network devices involved will be described in detail below.

[0036] Specifically, a terminal can be user equipment (UE), a remote UE, a relay UE, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a mobile device, a user terminal, a smart terminal, a wireless communication device, a user agent, or a user device. It should be noted that a relay device is a terminal capable of providing relay forwarding services to other terminals (including remote terminals). Additionally, a terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a next-generation communication system (such as an NR communication system), or a terminal in a future public land mobile network (PLMN), etc., without specific limitations.

[0037] Furthermore, the terminals can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; they can be deployed on water (such as ships); and they can also be deployed in the air (such as airplanes, balloons, and satellites).

[0038] Furthermore, the terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in autonomous driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0039] Furthermore, the terminal may include a device with transceiver capabilities, such as a chip system. The chip system may include a chip, and may also include other discrete components.

[0040] Specifically, network equipment can be devices used for communication with terminals, responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, and data transmission and reception on the air interface side. Network equipment can be a base station (BS) in a communication system or a device deployed in a radio access network (RAN) to provide wireless communication functions. Examples include base stations (BTS) in GSM or CDMA communication systems, node Bs (NBs) in WCDMA communication systems, evolved node Bs (eNBs or eNodeBs) in LTE communication systems, next-generation evolved node Bs (ng-eNBs) in NR communication systems, next-generation node Bs (gNBs) in NR communication systems, master nodes (MNs) in dual-link architectures, and secondary nodes (SNs) in dual-link architectures, without specific limitations.

[0041] Furthermore, network devices can also be other devices in the core network (CN), such as access and mobility management function (AMF), user plan function (UPF), etc.; they can also be access points (APs) and relay stations in wireless local area networks (WLANs), communication devices in future PLMN networks, and communication devices in NTN networks, etc.

[0042] Furthermore, network devices may include means for providing wireless communication capabilities to terminals, such as a chip system. For example, a chip system may include a chip, and may also include other discrete components.

[0043] Furthermore, network devices can communicate with Internet Protocol (IP) networks, such as the Internet, private IP networks, or other data networks.

[0044] It should be noted that in some network deployments, a network device can be a standalone node to implement all the functions of the aforementioned base station. This can include centralized units (CUs) and distributed units (DUs), such as gNB-CU and gNB-DU; it can also include active antenna units (AAUs). The CU can implement some of the network device's functions, and so can the DU. For example, the CU is responsible for handling non-real-time protocols and services, implementing the functions of the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, and packet data convergence protocol (PDCP) layer. The DU is responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer. Additionally, the AAU can implement some physical layer processing functions, radio frequency processing, and related functions of the active antenna. Since RRC layer information ultimately becomes PHY layer information, or is derived from PHY layer information, in this network deployment, higher-layer signaling (such as RRC layer signaling) can be considered to be sent by the DU, or jointly by the DU and AAU. It is understood that network devices can include at least one of CU, DU, and AAU. Furthermore, the CU can be classified as a network device in the radio access network (RAN), or it can be classified as a network device in the core network; no specific limitation is made in this regard.

[0045] Furthermore, the network equipment can possess mobility characteristics; for example, the network equipment can be a mobile device. Optionally, the network equipment can be a satellite or a balloon station. For example, the satellite can be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earthorbit (GEO) satellite, or a high elliptical orbit (HEO) satellite. Optionally, the network equipment can also be a base station located on land, water, or other similar locations.

[0046] Furthermore, network devices can provide services to a cell, and terminals within that cell can communicate with the network devices through transmission resources (such as spectrum resources). This cell can include macro cells, small cells, metro cells, micro cells, pico cells, and femto cells, among others.

[0047] Based on the above description, the wireless communication system of this application embodiment will be described below as an example.

[0048] For an example, see the wireless communication system of this application embodiment. Figure 1 The wireless communication system 10 may include a terminal 110 and a network device 120, wherein the network device 120 may be a device that communicates with the terminal 110. Simultaneously, the network device 120 may provide communication coverage for a specific geographical area and may communicate with the terminal 110 located within that coverage area.

[0049] Optionally, the wireless communication system 10 may also include multiple network devices, and each network device may include a certain number of terminals within its coverage area, without specific limitations.

[0050] Optionally, the wireless communication system 10 may also include other network entities such as a network controller and a mobility management entity, without specific limitations.

[0051] Optionally, the communication between the network device and the terminal in the wireless communication system 10 can be wireless or wired communication, without specific restrictions.

[0052] Before providing a detailed description of the system information update method provided in the embodiments of this application, the relevant content involved in the embodiments of this application will be introduced again.

[0053] 1. Search space and control resource set (CORESET)

[0054] In 5G NR systems, due to the larger system bandwidth and the differences in terminal demodulation capabilities, the PDCCH no longer needs to occupy the entire frequency band in the frequency domain to improve resource utilization and reduce blind detection complexity. Furthermore, to increase system flexibility and adapt to different scenarios, the starting position of the PDCCH in the time domain can also be configured. Therefore, in 5G NR systems, information such as the frequency band occupied by the PDCCH in the frequency domain and the number of OFDM symbols occupied in the time domain is typically encapsulated in the CORESET, while information such as the starting OFDM symbol of the PDCCH, the PDCCH listening period, and its associated CORESET is encapsulated in the search space.

[0055] Search spaces can be categorized into common search spaces (CSS) and user-specific search spaces (USS).

[0056] It should be noted that since each search space is associated with a CORESET (as indicated or configured by the higher-level parameter `controlResourceSetId`), and each search space can be associated with multiple PDCCH candidates (as indicated or configured by the higher-level parameter `nrofCandidates`), multiple associations between PDCCH candidates and CORESETs can be established through search spaces. Furthermore, since each CORESET can be associated with 1, 2, or more TCI states, during each PDCCH listening session, the CORESET associated with a PDCCH candidate can be configured with 1, 2, or more TCI states. Additionally, since the higher level can configure QCL through TCI states, TCI states may be associated with QCL-typeD.

[0057] 2. Quasi-Co-Location (QCL)

[0058] To ensure correct signal reception and demodulation, standard protocols introduce the concept of reference signals with QCL relationships, such as the channel state information reference signal (CSI-RS) and the synchronization signal block (SSB). Terminals can then estimate large-scale characteristic parameters based on the CSI-RS. These large-scale characteristic parameters include at least one of the following: delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial information. For example, in Release 11 of the LTE communication system, the standard protocol introduces antenna port QCL. Antenna port QCL indicates that the signal transmitted from the antenna port will undergo the same large-scale fading, thus possessing the same large-scale characteristic parameters. For instance, when antenna ports A and B satisfy the QCL relationship, the large-scale characteristic parameters estimated from the signal at antenna port A are also suitable for the signal at antenna port B.

[0059] Furthermore, in 5G NR systems, terminals and network equipment may be configured with large-scale array structures of multiple antenna panels, and the large-scale characteristics of the beams formed by different antenna panels will also be different. In this case, in addition to the delay spread, Doppler spread, Doppler frequency shift, average gain, and average delay described above, the large-scale characteristic parameters also include the angle of arrival (AOA), angle of arrival spread (AAS), angle of departure (AOD), angle of departure spread (ADS), and spatial correlation.

[0060] 3. Quasi-co-located antenna ports

[0061] The higher-layer parameter PDSCH-Config can configure up to M TCI states for the terminal to decode the PDSCH based on the DCI in the detected PDCCH, where M depends on the terminal's capabilities. Each TCI state contains parameters for configuring the QCL relationship between one or two downlink reference signals (such as CSI-RS and / or SSB) and the demodulation reference symbol (DM-RS) port of the PDSCH, the DM-RS port of the PDCCH, or the CSI-RS port of the CSI-RS resource. The QCL relationship can be configured by the higher-layer parameter qcl-Type1 for the first downlink reference signal and qcl-Type2 for the second downlink reference signal (if a second downlink reference signal is configured). In the case of two downlink reference signals, regardless of whether they are the same type of reference signal, the QCL types associated with the two downlink reference signals should not be the same. The QCL type associated with each downlink reference signal is defined by the higher-layer parameter qcl-Type in QCL-Info and may include:

[0062] QCL type A: {Doppler frequency shift, Doppler spread, average time delay, delay spread};

[0063] QCL type B: {Doppler frequency shift, Doppler spread};

[0064] QCL type C: {Doppler frequency shift, average time delay};

[0065] QCL type D (QCL-typeD): {space reception parameters}; etc.

[0066] The spatial reception parameters may include at least one of the following: AOA, average AOA, AOA spread, AOD, average AOD, AOD spread, receive antenna spatial correlation, transmit antenna spatial correlation, transmit beam, receive beam, resource identifier, etc. Furthermore, when the QCL type is QCL-TypeD, the TCI state can be used to indicate the beam. Each TCI state can provide (contain) one or two QCL type parameters. If a TCI state contains two QCL type parameters, then the QCL type will include QCL-TypeD. That is, a TCI state may be associated with QCL-typeD.

[0067] Secondly, the TCI status can be activated by an activation command issued from the network side (such as the MAC control unit CE) or indicated by the TCI field in the DCI. For example, when the TCI status is used to indicate the QCL type of the PDSCH, the network device can first activate it via MACCE.N One active TCI state, and then through the N-bit TCI field in the DCI, from this 2 N One TCI state is indicated by each active TCI state. When N=3, if the TCI field in the DCI is '000', then the TCI indicates the first TCI state activated by the MAC CE. Additionally, the reference signal for this TCI state is QCL with the DM-RS port of the PDSCH, relative to the QCL type parameter given for that TCI state.

[0068] 4. Same QCL-typeD attribute

[0069] To determine if the QCL-typeD attributes are the same, you can do the following:

[0070] → In order to determine CORESET, an SSB is considered to have a QCL-typeD attribute that is different from CSI-RS;

[0071] →To determine CORESET, the first CSI-RS associated with one SSB in the first cell and the second CSI-RS associated with that SSB in the second cell have the same QCL-typeD attribute; and so on.

[0072] For example, if the reference signal for QCL-TypeD of TCI state of CORESET#1 is the first CSI-RS, and the reference signal for QCL-TypeD of TCI state of CORESET#2 is also the first CSI-RS, then CORESET#1 and CORESET#2 have the same QCL-typeD property.

[0073] In summary, during PDCCH listening times that overlap on the active downlink bandwidth part (BWP), if multiple CORESETs associated with PDCCH candidates have different QCL-typeD attributes, the terminal needs to listen to the PDCCH according to certain priority criteria. Since existing 5G NR protocols typically assume that a terminal can only support a CORESET configured with one TCI state and can only listen to one PDCCH associated with the QCL-typeD attribute, further research is needed on how to listen to the PDCCH when the terminal supports CORESETs configured with two TCI states.

[0074] Based on the above description, this application provides a flowchart of a monitoring method. Please refer to [link / reference]. Figure 2 The method includes:

[0075] S210. If, during the PDCCH listening opportunity overlapping on the active downlink bandwidth portion of the BWP, there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state among the candidate CORESETs of PDCCH, then the terminal listens for PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state, where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 0.

[0076] It should be noted that, firstly, the network can configure a CORESET for each search space through higher-level parameters (such as controlResourceSetId), meaning each search space can be associated with one CORESET. Secondly, the network can also configure multiple PDCCH candidates for each search space through higher-level parameters, meaning each search space can be associated with multiple PDCCH candidates. Therefore, multiple associations between PDCCH candidates and CORESETs can be established through the search space approach; that is, a CORESET can be associated with at least one PDCCH candidate, or a PDCCH candidate can be associated with a CORESET.

[0077] Secondly, the terminal in this application embodiment supports being configured with two TCI states for the CORESET. Therefore, the CORESET configured by the network to the terminal may include the following three cases: only a CORESET associated with one TCI state exists; only a CORESET associated with two TCI states exists; and a CORESET associated with one TCI state and a CORESET associated with two TCI states exist simultaneously.

[0078] Furthermore, since there are M (M≥1) CORESETs associated with 2 TCI states and N (N≥0) CORESETs associated with 1 TCI state among the PDCCH candidate associated CORESETs monitored during the overlapping PDCCH monitoring time on the active downlink BWP, further research is needed on how to monitor PDCCHs.

[0079] Finally, based on the above description, the embodiments of this application consider the following: If there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state among the PDCCH candidate associated CORESETs monitored during the PDCCH monitoring time overlapping on the active downlink BWP, then PDCCH monitoring is performed in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state. This enables PDCCH monitoring in CORESETs associated with 2 TCI states and / or CORESETs associated with 1 TCI state when the terminal supports CORESETs configured with 2 TCI states, thereby ensuring the flexibility, robustness and stability of system communication.

[0080] In addition, the terminal can listen to the PDCCH in M ​​CORESETs associated with 2 TCI states and / or N CORESETs associated with 1 TCI state, which can include the following three implementation methods:

[0081] The terminal listens to the PDCCH (“Scenario 1”) in M ​​CORESETs that are associated with 2 TCI states;

[0082] The terminal listens to the PDCCH in M ​​CORESETs associated with 2 TCI states and N CORESETs associated with 2 TCI states ("Scenario 2");

[0083] The terminal listens to the PDCCH (“Scenario 3”) in N CORESETs associated with 1 TCI state.

[0084] If N > 0, the embodiments of this application can use existing protocol standards to implement PDCCH monitoring in "Scenario 3", which will not be described in detail below. "Scenario 1" and "Scenario 2" will be described in detail below.

[0085] Scenario 1:

[0086] In one possible example, the terminal listens for PDCCH in M ​​CORESETs associated with 2 TCI states and / or N CORESETs associated with 1 TCI state. This may include: the terminal listens for PDCCH in a first reference CORESET and / or a CORESET that has the same quasi-co-addressable QCL type D attribute as the first reference CORESET and is associated with 2 TCI states. The first reference CORESET is one of the M CORESETs associated with 2 TCI states.

[0087] Among them, the CORESET that has the same quasi-co-addressable QCL type D attribute as the first reference CORESET and is associated with 2 TCI states may include one or more of M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0088] It should be noted that, firstly, regarding "Scenario 1," it can be understood that the terminal only needs to listen to the PDCCH in the CORESET associated with two TCI states. The terminal's listening to the PDCCH can include the following three principles: listening to the PDCCH in the first reference CORESET; listening to the PDCCH in the first reference CORESET and the CORESET that has the same QCL-typeD attribute as the first reference CORESET and is associated with two TCI states; and listening to the PDCCH in the CORESET that has the same QCL-typeD attribute as the first reference CORESET and is associated with two TCI states.

[0089] Secondly, the first reference CORESET can be understood as one of M CORESETs associated with two TCI states; that is, the first reference CORESET is a CORESET associated with two TCI states. The first reference CORESET can be determined from the M CORESETs associated with two TCI states using certain criteria.

[0090] Furthermore, since a CORESET can be associated with one or two TCI states, and each TCI state may be associated with a QCL-typeD, embodiments of this application can select the appropriate CORESET by determining whether the QCL-typeD attributes corresponding to the TCI states of different CORESETs are the same. Specifically, if a CORESET is associated with two TCI states, namely a first TCI state and a second TCI state, the QCL-typeD attribute corresponding to the first TCI state and the QCL-typeD attribute corresponding to the second TCI state can be the same or different.

[0091] Finally, for a CORESET that has the same QCL-typeD attribute as the first reference CORESET and is associated with two TCI states, it can be understood that in this embodiment, the first reference CORESET can be used as a reference CORESET associated with two TCI states. Then, through the first reference CORESET, it can select from M CORESETs associated with two TCI states and N CORESETs associated with one TCI state whether there is a CORESET with the same QCL-typeD attribute as the first reference CORESET to obtain other CORESETs. Finally, PDCCH is listened to in these other CORESETs.

[0092] Furthermore, since the first reference CORESET is associated with two TCI states, when selecting from the M CORESETs associated with two TCI states whether there is a CORESET with the same QCL-typeD attribute as the first reference CORESET, it is necessary to ensure that the QCL-typeD attributes corresponding to the two TCI states of the selected CORESET (the QCL-typeD attributes corresponding to the two TCI states are not the same) are the same as the QCL-typeD attributes corresponding to the two TCI states of the first reference CORESET (the two QCL-typeD attributes of the first reference CORESET); or, it is necessary to ensure that the QCL-typeD attributes of the two TCI states of the selected CORESET (the QCL-typeD attributes corresponding to the two TCI states are the same) are the same as any one of the QCL-typeD attributes corresponding to the two TCI states of the first reference CORESET (the two QCL-typeD attributes of the first reference CORESET). The relevant descriptions in "Scenario 1" (such as the QCL-typeD attributes corresponding to the two TCI states of CORESET being different or the same, the QCL-typeD attributes between CORESET being the same, etc.) can be adapted to the relevant descriptions in subsequent technical solutions such as "Scenario 2" (such as the second reference CORESET, the third reference CORESET, the first CORESET, the second CORESET, the third CORESET, etc.), and will not be elaborated further.

[0093] For example, the first reference CORESET has two TCI states: the third TCI state and the fourth TCI state. The QCL-typeD attribute corresponding to the third TCI state can be the same as or different from the QCL-typeD attribute corresponding to the fourth TCI state. The selected CORESET has two TCI states: the fifth TCI state and the sixth TCI state. If the QCL-typeD attribute corresponding to the fifth TCI state is different from the QCL-typeD attribute corresponding to the sixth TCI state, then the QCL-typeD attribute corresponding to the third TCI state is the same as the QCL-typeD attribute corresponding to the fifth TCI state, and the QCL-typeD attribute corresponding to the fourth TCI state is the same as the QCL-typeD attribute corresponding to the sixth TCI state; or, the QCL-typeD attribute corresponding to the third TCI state is the same as the QCL-typeD attribute corresponding to the sixth TCI state, and the QCL-typeD attribute corresponding to the fourth TCI state is the same as the QCL-typeD attribute corresponding to the fifth TCI state. If the QCL-typeD attribute corresponding to the fifth TCI state is the same as the QCL-typeD attribute corresponding to the sixth TCI state, then the QCL-typeD attribute corresponding to the third TCI state is the same as the QCL-typeD attribute corresponding to the fifth TCI state (or the sixth TCI state); or, the QCL-typeD attribute corresponding to the fourth TCI state is the same as the QCL-typeD attribute corresponding to the fifth TCI state (or the sixth TCI state).

[0094] The following example illustrates this.

[0095] Example 1: In the case of overlapping PDCCH listening on an active downlink BWP, there are the following CORESET (M=2 and N=2): CORESET#0 (associated with 1 TCI state), CORESET#1 (associated with 2 TCI states), CORESET#2 (associated with 1 TCI state), CORESET#3 (associated with 2 TCI states);

[0096] →The QCL-typeD property corresponding to one of the TCI states in CORESET#1 is the same as the QCL-typeD property corresponding to the TCI state in CORESET#0;

[0097] →The QCL-typeD properties corresponding to the two TCI states of CORESET#1 are the same as the two QCL-typeD properties of CORESET#3.

[0098] Since "Scenario 1" primarily considers that the terminal only listens to the PDCCH in the CORESET associated with two TCI states, we can first exclude CORESET#0 and CORESET#2, and consider CORESET#1 and CORESET#3 instead. Then, when the first reference CORESET is "CORESET#1", since only one TCI state in CORESET#1 has the same QCL-typeD attribute as CORESET#0, and the QCL-typeD attributes of the two TCI states in CORESET#1 are the same as those in CORESET#3, the terminal listens to the PDCCH in "CORESET#1" and / or "CORESET#3".

[0099] Based on the above description, the following embodiments of this application will specifically explain the criteria for determining the first reference CORESET from M CORESETs associated with two TCI states.

[0100] Guideline 1-1:

[0101] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a cell in the first cell set that contains a CORESET with associated CSS and associated 2 TCI states, then the first reference CORESET can be: a CORESET with associated 2 TCI states and associated with the smallest index among at least one cell in the first cell set that contains a CORESET with associated CSS and associated 2 TCI states; the first cell set includes: M cells corresponding to CORESETs with associated 2 TCI states and N cells corresponding to CORESETs with associated 1 TCI state.

[0102] It should be noted that, firstly, since each search space can be associated with a CORESET, and the types of search spaces can include CSS and USS, each CORESET can be associated with (or contain) CSS and / or USS.

[0103] Secondly, during the PDCCH listening time overlapping on the active downlink BWP, since each of the M CORESETs associated with 2 TCI states may correspond to (or be associated with) a cell, and each of the N CORESETs associated with 1 TCI state may correspond to (or be associated with) a cell, the first cell set in this application embodiment includes the cells corresponding to the M CORESETs associated with 2 TCI states and the cells corresponding to the N CORESETs associated with 1 TCI state.

[0104] For example, in the case of overlapping PDCCH listening on an active downlink BWP, there is at least one CORESET. The cells associated with this at least one CORESET include cell 1, cell 2, and cell 3, that is, the first cell set includes cell 1, cell 2, and cell 3. Among them, cell 1 is associated with CORESET#1_1 (associated with 1 TCI state, only associated with USS) and CORESET#1_2 (associated with 1 TCI state, only associated with CSS), cell 2 is associated with CORESET#2_1 (associated with 1 TCI state, only associated with USS) and CORESET#2_2 (associated with 2 TCI states, associated with CSS), and cell 3 is associated with CORESET#3_1 (associated with 2 TCI states, associated with USS) and CORESET#3_2 (associated with 2 TCI states, associated with CSS).

[0105] Furthermore, within the first cell set, some cells may contain a core set with associated CSS and two associated TCI states (such as cell 2 mentioned above), all cells may contain a core set with associated CSS and two associated TCI states, or there may be no cells with associated CSS and two associated TCI states. Therefore, if the first cell set contains a core set with associated CSS and two associated TCI states, the core set with two associated TCI states and associated with the minimum index among the cells containing such core sets in the first cell set is taken as the first reference core set. That is, firstly, core sets containing associated CSS and two associated TCI states are selected from the first cell set to obtain at least one core set; then, the cells to which this at least one core set belongs are determined to obtain at least one cell; next, the cell with the minimum index is selected from this at least one cell; finally, the core set with two associated TCI states and associated with the minimum index CSS is selected from this cell to obtain the first reference core set.

[0106] Finally, each cell has its corresponding index (cell index), so this embodiment can select the cell with the smallest index from multiple cells according to the principle of minimum index. Similarly, each CSS also has its corresponding index, so this embodiment can also select the CORESET with the smallest associated index from multiple CORESETs associated with (containing) CSSs according to the principle of minimum index.

[0107] As can be seen, by using the “Guideline 1-1” described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the first reference CORESET) that is associated with two TCI states and is associated with (includes) the smallest index of the CSS during the PDCCH listening time overlapping on the active downlink BWP. This enables the terminal to listen to the PDCCH only in the COSESET associated with two TCI states, thereby ensuring the flexibility, robustness and stability of system communication.

[0108] Based on the above description, "Guideline 1-1" can also be described as follows:

[0109] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a CORESET in the second CORESET that is associated with CSS and associated with 2 TCI states, then the first reference CORESET is: the CORESET belonging to the second CORESET and associated with the minimum index CSS in at least one cell to which the CORESET associated with CSS and associated with 2 TCI states belongs; the second CORESET includes: M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0110] This can be understood as follows: First, select CORESETs that are associated with CSS and two TCI states from the second CORESET to obtain at least one CORESET. Then, determine the cell to which the at least one CORESET belongs to obtain at least one cell. Next, select the cell with the minimum index from the at least one cell. Finally, select the CORESET that belongs to the second CORESET and is associated with the minimum index CSS from the cell with the minimum index to obtain the first reference CORESET.

[0111] Guideline 1-2:

[0112] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no cell in the first cell set that contains a CORESET with associated CSS and associated 2 TCI states, then the first reference CORESET can be: the CORESET with associated 2 TCI states and associated minimum index among at least one cell in the first cell set that contains a CORESET with associated USS and associated 2 TCI states.

[0113] The first cell set includes M cells corresponding to CORESETs associated with 2 TCI states and N cells corresponding to CORESETs associated with 1 TCI state.

[0114] It should be noted that, similarly, USS also has its corresponding index. Therefore, in this embodiment, the CORESET with the smallest associated index USS can be selected from multiple CORESETs associated with (including) USS according to the principle of minimum index.

[0115] Additionally, if there is no cell in the first cell set that contains a core set with associated CSS and two associated TCI states, then the core set with associated two TCI states and associated with the minimum index among the cells in the first cell set that contain a core set with associated USS and two associated TCI states is taken as the first reference core set. In other words, firstly, core sets containing associated USS and two associated TCI states are selected from the first cell set to obtain at least one core set; then, the cells to which this at least one core set belongs are determined to obtain at least one cell; next, the cell with the minimum index is selected from this at least one cell; finally, the core set with associated two TCI states and associated with the minimum index USS is selected from this cell to obtain the first reference core set.

[0116] As can be seen, by using the "Guidelines 1-2" described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the first reference CORESET) of the USS that is associated with two TCI states and is associated with (includes) the smallest index during the PDCCH listening time on the active downlink BWP. This enables the terminal to listen to the PDCCH only in the COSESET associated with two TCI states, thereby ensuring the flexibility, robustness and stability of system communication.

[0117] Based on the above description, "Guideline 1-2" can also be described as follows:

[0118] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no CORESET in the second CORESET that is associated with CSS and two TCI states, then the first reference CORESET can be: a CORESET belonging to the second CORESET and associated with the minimum index USS in at least one cell of the cell to which the CORESET associated with USS and two TCI states belong; the second CORESET includes: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state.

[0119] This can be understood as follows: First, select a CoreSET from the second CoreSET that is associated with a USS and two TCI states to obtain at least one CoreSET. Then, determine the cell to which the at least one CoreSET belongs to obtain at least one cell. Next, select the cell with the minimum index from the at least one cell. Finally, select a CoreSET from the cell with the minimum index that belongs to the second CoreSET and is associated with the minimum index USS to obtain the first reference CoreSET.

[0120] The following embodiments of this application provide an example to illustrate "Guideline 1-1" and "Guideline 1-2".

[0121] Example 2: In a PDCCH listening scenario with overlapping activity on an active downlink BWP, the following CORESET exists (with M=3 and N=3):

[0122] Cell 1: CORESET#0 (associated with 1 TCI state, including CSS), CORESET#2 (2 TCI states, including CSS#1), CORESET#3 (1 TCI state, including CSS), CORESET#4 (2 TCI states, including USS);

[0123] →The QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 1 is the same as the QCL-typeD attribute of the TCI state in CORESET#0 of cell 1.

[0124] →The QCL-typeD attributes corresponding to the two TCI states of CORESET#4 in cell 1 are the same as the two QCL-typeD attributes of CORESET#2 in cell 1.

[0125] Cell 2: CORESET#1 (1 TCI state, containing only USS), CORESET#2 (2 TCI states, including CSS#2);

[0126] →The QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 2 is the same as the QCL-typeD attribute of the TCI state in CORESET#1 of cell 2.

[0127] →The QCL-typeD attribute of another TCI state in CORESET#2 of cell 2 is the same as the QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 1.

[0128] First, during the overlapping PDCCH listening time on the active downlink BWP, the cells associated with the aforementioned CORESET include cell 1 and cell 2, meaning the first cell set includes cell 1 and cell 2. Cell 1 is associated with CORESETs #0, #2, #3, and #4, while cell 2 is associated with CORESETs #1 and #2. The cell index corresponding to cell 1 is less than the index corresponding to cell 2. Furthermore, cell 1's CORESET #0 is associated with one TCI state, and the search space associated with cell 1's CORESET #0 contains a CSS, which is associated with one or more PDCCH candidates; the other CORESETs are known sequentially.

[0129] Secondly, since both cell 1 and cell 2 have CORESETs associated with two TCI states, and cell 1's "CORESET#2" is associated with a CSS, and cell 2's "CORESET#2" is also associated with a CSS, the first cell set contains a cell that contains a CORESET associated with both a CSS and two TCI states. Therefore, according to "Criterion 1-1", the first reference CORESET is determined to be cell 1's "CORESET#2".

[0130] First, select the cell containing CSS and associated with two TCI states from the first cell set to obtain cell 1 and cell 2. Then, select the cell with the smallest index from cell 1 and cell 2, i.e. cell 1. Next, select "CORESET#2" and "CORESET#4" associated with two TCI states from cell 1. Finally, select the CORESET associated with the smallest index CSS from "CORESET#2" and "CORESET#4" to obtain "CORESET#2" of cell 1.

[0131] Next, from the CORESETs of cell 1 and cell 2 with two associated TCI states, other CORESETs with the same QCL-typeD attribute as the first reference CORESET and associated with two TCI states are selected. Since only one TCI state of cell 2's "CORESET#2" has the same QCL-typeD attribute as the first reference CORESET, "CORESET#2" of cell 2 is excluded, thus obtaining the other CORESETs, including "CORESET#4" of cell 1.

[0132] Finally, the terminal listens to the PDCCH in "CORESET#2" and / or "CORESET#4" of cell 1, thereby enabling the terminal to listen to the PDCCH only in CORESETs associated with the two TCI states when the terminal supports CORESETs configured with two TCI states, thus ensuring the flexibility, robustness and stability of system communication.

[0133] Scenario 2:

[0134] In one possible example, the terminal listens for PDCCH in M ​​CORESETs associated with 2 TCI states and / or N CORESETs associated with 1 TCI state. This may include: the terminal listening for PDCCH in a second reference CORESET and / or a first CORESET, where the second reference CORESET is one of the M CORESETs associated with 2 TCI states and the N CORESETs associated with 1 TCI state, and the first CORESET is determined according to the QCL type D attribute of the second reference CORESET.

[0135] The first CORESET may include one or more of M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0136] It should be noted that, firstly, regarding "Scenario 2," it can be understood that the terminal needs to listen to the PDCCH in both a CORESET associated with two TCI states and a CORESET associated with one TCI state. The terminal's PDCCH listening can include the following three principles: listening to the PDCCH in the second reference CORESET; listening to the PDCCH in both the second reference CORESET and the first CORESET; and listening to the PDCCH in the first CORESET.

[0137] Secondly, the second reference coreset can be understood as one of M coresets associated with two TCI states and N coresets associated with one TCI state; that is, the second reference coreset is a coreset associated with either two or one TCI states. The second reference coreset can be determined from the M coresets associated with two TCI states and the N coresets associated with one TCI state using certain criteria.

[0138] Finally, regarding the first CORESET, it can be understood that, in this embodiment of the application, the second reference CORESET can be used as a reference CORESET associated with two or one TCI states. The first CORESET is then determined from M CORESETs associated with two TCI states and N CORESETs associated with one TCI state using the QCL-typeD attribute of the second reference CORESET. Ultimately, the PDCCH is listened to in this first CORESET. Furthermore, the first CORESET may include at least one of the M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state.

[0139] Based on the above description, the following embodiments of this application will specifically explain the criteria for determining the second reference CORESET from M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0140] Guideline 2-1:

[0141] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a cell in the first cell set that contains a CORESET with an associated CSS, then the second reference CORESET can be: the CORESET with the smallest associated index CSS in the cell with the smallest index in the cell containing the CORESET with the associated CSS in the first cell set.

[0142] It should be noted that, unlike the above-mentioned "first reference CORESET" which is a CORESET associated with two TCI states, the second reference CORESET in 'Guideline 2-1' can be a CORESET associated with two TCI states or a CORESET associated with one TCI state.

[0143] Additionally, if the first cell set contains cells that include a CORESET with associated CSS, then the CORESET with the smallest index among the cells containing the associated CORESET in the first cell set is taken as the second reference CORESET. In other words, at least one cell is first selected from the first cell set that contains a CORESET with associated CSS and associated with one or two TCI states. Then, the cell with the smallest index is selected from that at least one cell. Finally, the CORESET with the smallest index is selected from that cell to obtain the second reference CORESET.

[0144] As can be seen, unlike the first reference CORESET, which must be a CORESET associated with two TCI states, the second reference CORESET in 'Guideline 2-1' can be a CORESET associated with two or one TCI states. Furthermore, through the "Guideline 2-1" described in this example, this application embodiment can accurately and quickly determine, during the PDCCH listening opportunity on an active downlink BWP, a COSESET (i.e., the second reference CORESET) associated with two or one TCI states and associated with (including) the smallest index of the cell containing the associated CSS in the cell with the smallest index. This enables the terminal to listen to the PDCCH in a COSESET associated with two or one TCI state, thereby ensuring the flexibility, robustness, and stability of system communication.

[0145] Based on the above description, "Guideline 2-1" can also be described as follows:

[0146] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a CORESET associated with a CSS in the second CORESET, then the second reference CORESET is: a CORESET belonging to the second CORESET and associated with the minimum index CSS in at least one cell of the cell to which the CORESET associated with the CSS in the second CORESET belongs; the second CORESET includes: M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0147] This can be understood as follows: first, select the CORESET associated with the CSS from the second CORESET to obtain at least one CORESET; then, determine the cell to which the at least one CORESET belongs to obtain at least one cell; next, select the cell with the minimum index from the at least one cell; and finally, select the CORESET that belongs to the second CORESET and is associated with the minimum index CSS from the cell with the minimum index to obtain the second reference CORESET.

[0148] Guideline 2-2:

[0149] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no cell in the first cell set that contains a CORESET with an associated CSS, then the second reference CORESET can be: the CORESET with the smallest associated index of the cell in the first cell set that contains a CORESET with an associated USS.

[0150] It should be noted that, similarly to the above, unlike the first reference CORESET which must be a CORESET associated with two TCI states, the second reference CORESET in 'Guideline 2-2' can be a CORESET associated with two or one TCI states.

[0151] Additionally, if no cell in the first cell set contains a CORESET with associated CSS, then the CORESET with the smallest index among the cells in the first cell set that contain a CORESET with associated USS is taken as the second reference CORESET. In other words, at least one cell in the first cell set is first selected that has a CORESET with associated USS and associated with one or two TCI states. Then, the cell with the smallest index is selected from that at least one cell. Finally, the CORESET with the smallest index associated with USS is selected from that cell to obtain the second reference CORESET.

[0152] As can be seen, by using "Guideline 2-2" as described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the second reference CORESET) that is associated with 2 or 1 TCI states and is associated with (including) the minimum index of the USS during the PDCCH listening time overlapping on the active downlink BWP. This enables the terminal to listen to the PDCCH in the COSESET associated with 2 or 1 TCI states, thereby ensuring the flexibility, robustness and stability of system communication.

[0153] Based on the above description, "Guideline 2-2" can also be described as follows:

[0154] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no CORESET associated with a CSS in the second CORESET, then the second reference CORESET can be: a CORESET belonging to the second CORESET and associated with the minimum index USS in at least one cell of the cell to which the CORESET associated with the USS belongs; the second CORESET includes: M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0155] This can be understood as follows: first, select the CORESET associated with the USS from the second CORESET to obtain at least one CORESET; then, determine the cell to which the at least one CORESET belongs to obtain at least one cell; next, select the cell with the minimum index from the at least one cell; and finally, select the CORESET belonging to the second CORESET and associated with the minimum index USS from the cell with the minimum index to obtain the second reference CORESET.

[0156] Based on the above description, the following embodiments of this application will specifically explain the criteria for determining the first CORESET from M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state according to the QCL-typeD attribute of the second reference CORESET.

[0157] Criterion 2-x-1: (x can be 1 or 2)

[0158] In one possible example, if the second reference CORESET is a CORESET associated with 1 TCI state, then the first CORESET may include: at least one of the M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with 1 TCI state and / or associated with 2 TCI states.

[0159] It is understandable that if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET can include the following three cases: at least one of the M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state has the same QCL type D attribute as the second reference CORESET and is associated with one TCI state and two TCI states; at least one of the M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state has the same QCL type D attribute as the second reference CORESET and is associated with two TCI states; at least one of the M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state has the same QCL type D attribute as the second reference CORESET and is associated with one TCI state.

[0160] It should be noted that in "Guideline 2-x-1", the first CORESET includes at least one CORESET associated with one TCI state and / or at least one CORESET associated with two TCI states. The QCL-typeD attribute of the CORESET associated with one TCI state is the same as the QCL-typeD attribute of the second reference CORESET. The QCL-typeD attribute corresponding to one of the TCI states in the CORESET associated with two TCI states is the same as the QCL-typeD attribute of the second reference CORESET. Furthermore, the QCL-typeD attributes corresponding to the two TCI states can be the same or different.

[0161] The following is an example illustrating “Criterion 2-x-1”.

[0162] Example 3: In a PDCCH listening event that overlaps on an active downlink BWP, the following CORESETs exist (M=3 and N=3): CORESET#0 (associated with 1 TCI state, including CSS), CORESET#1 (2 TCI states, including CSS), CORESET#2 (1 TCI state, including CSS), CORESET#3 (2 TCI states, including USS), CORESET#4 (1 TCI state, including USS), CORESET#5 (2 TCI states, including USS);

[0163] →The QCL-typeD property corresponding to the TCI state of CORESET#0 is the same as the QCL-typeD property corresponding to one of the TCI states of CORESET#1;

[0164] →The two TCI states of CORESET#3 each have the same QCL-typeD property as the two QCL-typeD properties of CORESET#1;

[0165] →The QCL-typeD property corresponding to the TCI state of CORESET#2 is different from the QCL-typeD property corresponding to the TCI state of CORESET#0;

[0166] →The QCL-typeD property corresponding to the TCI state of CORESET#4 is the same as the QCL-typeD property corresponding to the TCI state of CORESET#0;

[0167] →The two TCI states of CORESET#5 have the same QCL-typeD property, and it is also the same as the QCL-typeD property of CORESET#0;

[0168] Since "Guideline 2-x-1" mainly considers the case where the second reference CORESET is a CORESET associated with one TCI state, if the second reference CORESET is "CORESET#0", then according to "Guideline 2-x-1", the first CORESET can include the following three cases: "CORESET#1", "CORESET#3", "CORESET#4" and "CORESET#5"; "CORESET#1", "CORESET#3" and "CORESET#5"; "CORESET#4".

[0169] Criterion 2-x-2:

[0170] In one possible example, if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET may include: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, among which the CORESETs with the same QCL type D attribute as the second reference CORESET and associated with one TCI state and / or associated with two TCI states, and the QCL type D attribute corresponding to each of the two TCI states is the same.

[0171] It should be noted that, unlike Guideline 2-x-1, where only one TCI state in the first CORESET needs to have the same QCL-typeD attribute as the second reference CORESET, in Guideline 2-x-2, the QCL-typeD attributes of both TCI states in the first CORESET must be identical, and also identical to the QCL-typeD attribute of the second reference CORESET.

[0172] For example, in the conditions of “Example 3” above, if the second reference CORESET is “CORESET#0”, then according to “Guideline 2-x-2”, the first CORESET can include the following three cases: “CORESET#4” and “CORESET#5”; “CORESET#4”; “CORESET#5”.

[0173] Criterion 2-x-3:

[0174] In one possible example, if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET may include: one of the M CORESETs associated with two TCI states and N CORESETs associated with one TCI state that has the same QCL type D attribute as the second reference CORESET and is associated with one TCI state, and / or one of the CORESETs associated with the same QCL type D attribute as the third reference CORESET and is associated with two TCI states; the third reference CORESET is one determined from the M CORESETs associated with two TCI states according to the QCL type D attribute of the second reference CORESET.

[0175] Specifically, one of the QCL type D properties of the third reference CORESET is the same as the QCL type D property of the second reference CORESET.

[0176] It should be noted that, firstly, for a CORESET that has the same QCL type D attribute as the second reference CORESET and is associated with one TCI state, it can be understood that, since the second reference CORESET is a CORESET associated with one TCI state, the CORESET with the same QCL type D attribute as the second reference CORESET is selected from N CORESETs associated with one TCI state.

[0177] Secondly, the third reference CORESET can be understood as one of the M CORESETs associated with two TCI states, determined based on the QCL type D attribute of the second reference CORESET. In other words, the third reference CORESET is a CORESET associated with two TCI states. The third reference CORESET can be selected from the M CORESETs associated with two TCI states using certain criteria.

[0178] Furthermore, if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET can include the following three cases: among M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, the CORESET with the same QCL type D attribute as the second reference CORESET and associated with one TCI state, and the CORESET with the same QCL type D attribute as the third reference CORESET and associated with two TCI states; among M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, the CORESET with the same QCL type D attribute as the second reference CORESET and associated with one TCI state; among M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, the CORESET with the same QCL type D attribute as the third reference CORESET and associated with two TCI states.

[0179] Finally, a CORESET that has the same QCL-type D attribute as the third reference CORESET and is associated with two TCI states can be understood as follows: in this embodiment, the third reference CORESET can be used as a reference CORESET associated with two TCI states. Then, through the third reference CORESET, it can be selected from M CORESETs associated with two TCI states to see if there is a CORESET with the same QCL-type D attribute as the third reference CORESET to obtain other CORESETs (i.e., the first CORESET). Finally, PDCCH is listened to in these other CORESETs.

[0180] In addition, since the third reference CORESET is associated with two TCI states, when selecting from the M CORESETs associated with two TCI states whether there is a CORESET with the same QCL-typeD attribute as the third reference CORESET, it is necessary to ensure that the QCL-typeD attribute corresponding to each of the two TCI states of the selected CORESET is the same as the QCL-typeD attribute corresponding to the two TCI states of the third reference CORESET.

[0181] Based on the above description, the following embodiments of this application will specifically explain the criteria for selecting a third reference CORESET from M CORESETs associated with two TCI states.

[0182] Guideline 2-x-3-1:

[0183] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a CORESET with associated CSS in the third CORESET, then the third reference CORESET can be: a CORESET belonging to the third CORESET and associated with the smallest index CSS in at least one cell of the cell to which the CORESET with associated CSS belongs; the third CORESET includes: a CORESET with at least one QCL type D property that is the same as the QCL type D property of the second reference CORESET and associated with two TCI states in M ​​CORESETs.

[0184] It should be noted that, for the third CORESET, it can be understood that, in this embodiment of the application, at least one CORESET with the same QCL-typeD attribute as the second reference CORESET can be selected from M CORESETs associated with two TCI states to obtain the third CORESET. In other words, since the second reference CORESET is a CORESET associated with one TCI state, the third CORESET includes at least one CORESET associated with two TCI states, and the QCL-typeD attribute corresponding to at least one of these two TCI states is the same as the QCL-typeD attribute of the second reference CORESET.

[0185] Secondly, since some CORESETs in the third CORESET may be associated with (contain) CSS, there may also be CORESETs that are not associated with (contain) CSS, that is, there are no CORESETs associated with CSS in the third CORESET.

[0186] Finally, if a CORESET with associated CSS exists in the third CORESET, then the CORESET with the smallest index in the smallest cell of at least one cell of the CORESET with associated (contained) CSS in the third CORESET is taken as the third reference CORESET. That is, first, at least one CORESET with the same QCL-typeD property as the QCL-typeD property of the second reference CORESET is selected from M CORESETs with two associated TCI states to obtain the third CORESET. Then, CORESETs with associated CSS are selected from the third CORESET to obtain at least one CORESET, and the cell to which the at least one CORESET belongs is determined to obtain at least one cell. Next, the cell with the smallest index is selected from the at least one cell. Finally, CORESETs belonging to the third CORESET and associated with the CSS of the smallest index are selected from the cell with the smallest index to obtain the third reference CORESET.

[0187] As can be seen, by using the "Guideline 2-x-3-1" described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the second reference CORESET) associated with one TCI state and associated with (including) the minimum index of the CSS or USS, and a COSESET (i.e., the third reference CORESET) associated with two TCI states and associated with (including) the minimum index of the CSS, thereby enabling the terminal to listen to the PDCCH in the COSESET associated with one TCI state and the CORESET associated with two TCI states, thus ensuring the flexibility, robustness and stability of system communication.

[0188] Guideline 2-x-3-2:

[0189] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no associated CSS CORESET in the third CORESET, then the third reference CORESET can be: a CORESET belonging to the third CORESET and associated with the minimum index USS in at least one cell of the cell to which the CORESET associated with the USS belongs; the third CORESET includes: a CORESET in M ​​associated with 2 TCI states where at least one QCL type D property is the same as the QCL type D property of the second reference CORESET and is associated with 2 TCI states.

[0190] It should be noted that if there is no associated CSS CORESET in the third CORESET, then the CORESET belonging to the smallest index cell of at least one cell of the CORESET associated with (including) the USS and associated with the smallest index USS in the third CORESET is taken as the third reference CORESET. That is, firstly, at least one CORESET with the same QCL-typeD property as the QCL-typeD property of the second reference CORESET is selected from M CORESETs associated with 2 TCI states to obtain the third CORESET. Then, CORESETs associated with the USS are selected from the third CORESET to obtain at least one CORESET, and the cell to which the at least one CORESET belongs is determined to obtain at least one cell. Next, the cell with the smallest index is selected from the at least one cell. Finally, CORESETs belonging to the third CORESET and associated with the smallest index USS are selected from the cell with the smallest index to obtain the third reference CORESET.

[0191] As can be seen, by using the "Guideline 2-x-3-2" described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the second reference CORESET) associated with one TCI state and associated with (including) the minimum index of a CSS or USS, and a COSESET (i.e., the third reference CORESET) associated with two TCI states and associated with (including) the minimum index of a USS, thereby enabling the terminal to listen to the PDCCH in the COSESET associated with one TCI state and the CORESET associated with two TCI states, thus ensuring the flexibility, robustness and stability of system communication.

[0192] The following is an example illustrating “Criterion 2-1”, “Criterion 2-2”, “Criterion 2-x-3”, “Criterion 2-x-3-1” and “Criterion 2-x-3-2”.

[0193] Example 4: During the PDCCH listening time of an active downlink BWP with overlapping connections, the following CORESET exists (M=4, N=3):

[0194] Cell 1: CORESET#0 (associated with 1 TCI state, including CSS#0), CORESET#2 (2 TCI states, including CSS#1), CORESET#3 (1 TCI state, including CSS#2), CORESET#4 (2 TCI states, including USS);

[0195] →The QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 1 is the same as the QCL-typeD attribute of the TCI state in CORESET#0 of cell 1.

[0196] →The QCL-typeD attributes corresponding to the two TCI states of CORESET#4 in cell 1 are the same as the two QCL-typeD attributes of CORESET#2 in cell 1.

[0197] →The QCL-typeD attribute corresponding to the TCI state of CORESET#3 in cell 1 is different from the QCL-typeD attribute corresponding to the TCI state of CORESET#0 in cell 1.

[0198] Cell 2: CORESET#1 (1 TCI state, containing only USS), CORESET#2 (2 TCI states, containing CSS), CORESET#3 (2 TCI states, containing USS);

[0199] →The QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 2 is the same as the QCL-typeD attribute of the TCI state in CORESET#1 of cell 2.

[0200] →The QCL-typeD attribute of another TCI state in CORESET#2 of cell 2 is the same as the QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 1.

[0201] →The QCL-typeD attribute corresponding to the TCI state of CORESET#1 in cell 2 is the same as the QCL-typeD attribute corresponding to the TCI state of CORESET#0 in cell 1.

[0202] →The two TCI states of CORESET#3 in cell 2 have the same QCL-typeD attribute, and are the same as the QCL-typeD attribute of CORESET#0 in cell 1.

[0203] First, during the overlapping PDCCH listening time on the active downlink BWP, the cells associated with the aforementioned CORESET include cell 1 and cell 2, with the cell index corresponding to cell 1 being less than the index corresponding to cell 2. Since both cell 1 and cell 2 have associated CORESETs, the second reference CORESET is determined to be "CORESET#0" of cell 1 according to "Criterion 2-1":

[0204] First, select cell 1 and cell 2 from cell 1 and cell 2 that include CORESETs with associated CSS and associated with one or two TCI states. Then, select the cell with the smallest index from cell 1 and cell 2, i.e. cell 1. Finally, select the CORESET with the smallest index CSS from "CORESET#0", "CORESET#2" and "CORESET#3" of cell 1 to obtain "CORESET#0" of cell 1.

[0205] Secondly, since the second reference CORESET (CORESET#0 of cell 1) is a CORESET associated with one TCI state, according to "Criterion 2-x-3", we first select a CORESET with the same QCL type D attribute as the second reference CORESET (CORESET#0 of cell 1) from the N CORESETs associated with one TCI state (CORESET#0 and CORESET#3 of cell 1, and CORESET#1 of cell 2) to obtain "CORESET#1" of cell 2.

[0206] Next, according to "Guideline 2-x-3-1" and "2-x-3-2", at least one CORESET with the same QCL type D attribute as the second reference CORESET (CORESET#0 of cell 1) and associated with two TCI states is selected from M CORESETs. The resulting third CORESET includes: CORESET#2 of cell 1, CORESET#4 of cell 1, CORESET#2 of cell 2, and CORESET#3 of cell 2.

[0207] Next, since there is a CORESET associated with CSS in the third CORESET, the third reference CORESET is determined to be "CORESET#2" of cell 1 according to "Criterion 2-x-3-1":

[0208] First, select at least one cell from the third CORESET that contains the associated CSS (CORESET #2 of cell 1 and CORESET #2 of cell 2), namely cell 1 and cell 2. Then, select the cell with the smallest index from cell 1 and cell 2, namely cell 1. Finally, select the CORESET that belongs to the third CORESET and is associated with the smallest index CSS from cell 1 to obtain "CORESET #2" of cell 1.

[0209] Finally, according to "Criterion 2-x-3", from the M CORESETs associated with two TCI states, select the CORESET with the same QCL type D attribute as the third reference CORESET (CORESET#2 of cell 1) and associated with two TCI states, thus obtaining "CORESET#4" of cell 1 and "CORESET#3" of cell 2. Therefore, the first CORESET includes "CORESET#1" of cell 2, "CORESET#4" of cell 1 and / or "CORESET#3" of cell 2 and / or "CORESET#2" of cell 1.

[0210] As can be seen, the terminal listens to the PDCCH in the second reference CORESET and / or the first CORESET, thereby enabling the terminal to listen to the PDCCH in the COSESET associated with one TCI state and the CORESET associated with two TCI states when the terminal supports CORESETs configured with two TCI states, thus ensuring the flexibility, robustness and stability of system communication.

[0211] Criterion 2-x-4: (x is 1 or 2)

[0212] In one possible example, if the second reference CORESET is a CORESET associated with two TCI states, then the first CORESET may include: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, which are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with two TCI states, and / or CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with one TCI state.

[0213] It is understandable that if the second reference CORESET is a CORESET associated with two TCI states, then the first CORESET can include the following three cases: among M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, there are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with two TCI states, and CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with one TCI state; among M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, there are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with two TCI states; among M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, there are CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with one TCI state.

[0214] It should be noted that in "Guideline 2-x-4", the first CORESET contains at least one CORESET associated with one TCI state and / or at least one CORESET associated with two TCI states, and the QCL-typeD attribute of the CORESET associated with one TCI state is the same as at least one QCL-typeD attribute of the second reference CORESET, and the QCL-typeD attribute corresponding to each of the two TCI states in the CORESET associated with two TCI states is the same as the two QCL-typeD attributes of the second reference CORESET.

[0215] For example, in the conditions of “Example 3” above, if the second reference CORESET is “CORESET#1”, then according to “Guideline 2-x-4”, the first CORESET can include the following three cases: “CORESET#0”, “CORESET#3”, “CORESET#4” and “CORESET#5”; “CORESET#0” and “CORESET#4”; “CORESET#3” and “CORESET#5”.

[0216] The following is an example illustrating “Guideline 2-1”, “Guideline 2-2” and “Guideline 2-x-4”.

[0217] Example 5: During the PDCCH listening time of an active downlink BWP with overlapping connections, the following CORESET exists (M=4, N=3):

[0218] Cell 1: CORESET#0 (associated with 1 TCI state, including USS), CORESET#2 (2 TCI states, including CSS), CORESET#3 (1 TCI state, including USS), CORESET#4 (2 TCI states, including USS);

[0219] →The QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 1 is the same as the QCL-typeD attribute of the TCI state in CORESET#0 of cell 1.

[0220] →The QCL-typeD attributes corresponding to the two TCI states of CORESET#4 in cell 1 are the same as the two QCL-typeD attributes of CORESET#2 in cell 1.

[0221] →The QCL-typeD attribute corresponding to the TCI state of CORESET#3 in cell 1 is different from the QCL-typeD attribute corresponding to the TCI state of CORESET#0 in cell 1.

[0222] Cell 2: CORESET#1 (1 TCI state, containing only USS), CORESET#2 (2 TCI states, containing CSS), CORESET#3 (2 TCI states, containing USS);

[0223] →The QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 2 is the same as the QCL-typeD attribute of the TCI state in CORESET#1 of cell 2.

[0224] →The QCL-typeD attribute of another TCI state in CORESET#2 of cell 2 is the same as the QCL-typeD attribute of one of the TCI states in CORESET#2 of cell 1.

[0225] →The QCL-typeD attribute corresponding to the TCI state of CORESET#1 in cell 2 is the same as the QCL-typeD attribute corresponding to the TCI state of CORESET#0 in cell 1.

[0226] →The two TCI states of CORESET#3 in cell 2 have the same QCL-typeD attribute, and are the same as the QCL-typeD attribute of CORESET#0 in cell 1.

[0227] First, during the overlapping PDCCH listening time on the active downlink BWP, the cells associated with the aforementioned CORESET include cell 1 and cell 2, with the cell index corresponding to cell 1 being less than the index corresponding to cell 2. Since both cell 1 and cell 2 have associated CORESETs, the second reference CORESET is determined to be "CORESET#2" of cell 1 according to "Criterion 2-1":

[0228] First, select the CORESET associated with CSS from cell 1 and cell 2 that have one or two TCI states. Then, select the cell with the smallest index from cell 1 and cell 2, i.e. cell 1. Finally, select the CORESET associated with the smallest index of CSS from "CORESET#2" and "CORESET#3" of cell 1 to obtain "CORESET#2" of cell 1.

[0229] Secondly, since the second reference CORESET (CORESET#2 of cell 1) is a CORESET associated with two TCI states, according to "Criterion 2-x-4", from the M CORESETs associated with two TCI states (CORESET#2 and CORESET#4 of cell 1, CORESET#2 and CORESET#3 of cell 2), the CORESET with the same QCL type D attribute as the second reference CORESET (CORESET#2 of cell 1) is selected, resulting in CORESET#4 of cell 1, CORESET#2 of cell 2, and CORESET#3 of cell 2.

[0230] Next, according to "Guideline 2-x-4", from the N CORESETs associated with 1 TCI state (CORESET#0 and CORESET#3 of cell 1, CORESET#1 of cell 2), select at least one CORESET with the same QCL type D attribute as the second reference CORESET (CORESET#2 of cell 1) to obtain CORESET#0 of cell 1 and CORESET#1 of cell 2.

[0231] Finally, the first CORESET includes “CORESET#4” of cell 1, “CORESET#2” of cell 2, “CORESET#3” of cell 2, and / or “CORESET#0” of cell 1 and “CORESET#1” of cell 2.

[0232] As can be seen, the terminal listens to the PDCCH in the second reference CORESET and / or the first CORESET, thereby enabling the terminal to listen to the PDCCH in the COSESET associated with one TCI state and the CORESET associated with two TCI states when the terminal supports CORESETs configured with two TCI states, thus ensuring the flexibility, robustness and stability of system communication.

[0233] In Case 2, the second reference CORESET in Criterion 2-1 and Criterion 2-2 is a CORESET associated with 2 or 1 TCI states. The following explanation is for Case 2 where the second reference CORESET is only a CORESET associated with 2 TCI states.

[0234] Guideline 2-3:

[0235] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a CORESET in the second CORESET that is associated with CSS and associated with 2 TCI states, then the second reference CORESET is: a CORESET belonging to the second CORESET and associated with the minimum index CSS and associated with 2 TCI states in at least one cell of the cell to which the CORESET associated with CSS and associated with 2 TCI states belongs; the second CORESET includes: M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0236] This can be understood as follows: First, select a CORESET from the second CORESET that is associated with a CSS and two TCI states to obtain at least one CORESET. Then, determine the cell to which the at least one CORESET belongs to obtain at least one cell. Next, select the cell with the minimum index from the at least one cell. Finally, select a CORESET from the cell with the minimum index that belongs to the second CORESET, is associated with the minimum index CSS, and is associated with two TCI states to obtain the second reference CORESET.

[0237] As can be seen, by using the "Guidelines 2-3" described in this example, the embodiments of this application can accurately and quickly determine the COSESET (i.e., the second reference CORESET) of the cell with the smallest index among the cells containing the associated CSS and the associated (including) the smallest index of the CORSET, during the PDCCH listening time overlapping on the active downlink BWP. This enables the terminal to listen to the PDCCH in the COSESET with the associated CSS or the associated CSS, thereby ensuring the flexibility, robustness and stability of system communication.

[0238] Guideline 2-4:

[0239] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no CORESET in the second CORESET that is associated with CSS and two TCI states, then the second reference CORESET can be: a CORESET belonging to the second CORESET and associated with the minimum index USS and two TCI states in at least one of the cells to which the CORESET associated with USS and two TCI states belong; the second CORESET includes: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state.

[0240] This can be understood as follows: First, select a CoreSET from the second CoreSET that is associated with a USS and two TCI states to obtain at least one CoreSET. Then, determine the cell to which the at least one CoreSET belongs to obtain at least one cell. Next, select the cell with the minimum index from the at least one cell. Finally, select a CoreSET from the cell with the minimum index that belongs to the second CoreSET, is associated with the minimum index USS, and is associated with two TCI states to obtain the second reference CoreSET.

[0241] As can be seen, by using the "Guidelines 2-4" described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the second reference CORESET) that is associated with two TCI states and is associated with (includes) the smallest index of the USS during the PDCCH listening time overlapping on the active downlink BWP. This enables the terminal to listen to the PDCCH in a COSESET associated with two or one TCI states, thereby ensuring the flexibility, robustness and stability of system communication.

[0242] It should be noted that, unlike the second reference CORESET in "Guideline 2-1" and "Guideline 2-2" above, the second reference CORESET in "Guideline 2-3" and "Guideline 2-4" is only a CORESET that associates two TCI states.

[0243] Criterion 2-y-1: (y is 3 or 4)

[0244] In one possible example, the second reference CORESET is a CORESET associated with two TCI states, and the first CORESET may include: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, which are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with two TCI states, and / or CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with one TCI state.

[0245] It should be noted that in "Guideline 2-y-1", the first CORESET includes at least one CORESET associated with one TCI state and / or at least one CORESET associated with two TCI states, and the QCL-typeD attribute of the CORESET associated with one TCI state is the same as at least one QCL-typeD attribute of the second reference CORESET, and the QCL-typeD attribute corresponding to each of the two TCI states in the CORESET associated with two TCI states is the same as the two QCL-typeD attributes of the second reference CORESET.

[0246] Guideline 2-5:

[0247] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if N>0, and there is a CORESET in the second CORESET that is associated with a CSS and associated with 1 TCI state, then the second reference CORESET is: a CORESET belonging to the second CORESET and associated with the minimum index CSS and associated with 1 TCI state in at least one cell of the cell to which the CORESET associated with a CSS and associated with 1 TCI state belongs; the second CORESET includes: M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0248] This can be understood as follows: First, select a CORESET that is associated with a CSS and one TCI state from the second CORESET to obtain at least one CORESET. Then, determine the cell to which the at least one CORESET belongs to to obtain at least one cell. Next, select the cell with the minimum index from the at least one cell. Finally, select a CORESET that belongs to the second CORESET, is associated with the minimum index CSS, and is associated with one TCI state from the cell with the minimum index to obtain the second reference CORESET.

[0249] As can be seen, by using the "Guidelines 2-5" described in this example, the embodiments of this application can accurately and quickly determine the COSESET (i.e., the second reference CORESET) of the cell with the smallest index among the cells containing the associated CSS and associated with (including) the smallest index of the CORSET, which is also associated with the smallest index of the cell containing the associated CSS and associated with (including) the smallest index of the CORSET, during the PDCCH listening time of the overlapping cells on the active downlink BWP. This enables the terminal to listen to the PDCCH in the COSESET associated with 2 or 1 TCI states, thereby ensuring the flexibility, robustness and stability of the system communication.

[0250] Guideline 2-6:

[0251] In one possible example, during the overlapping PDCCH listening time on an active downlink BWP, if N>0 and there is no CORESET in the second CORESET that is associated with CSS and associated with 1 TCI state, then the second reference CORESET can be: a CORESET belonging to the second CORESET and associated with the minimum index USS and associated with 1 TCI state in at least one cell of the cell to which the CORESET associated with USS and associated with 1 TCI state belongs; the second CORESET includes: M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state.

[0252] This can be understood as follows: First, select a CoreSET from the second CoreSET that is associated with a USS and one TCI state to obtain at least one CoreSET. Then, determine the cell to which the at least one CoreSET belongs to obtain at least one cell. Next, select the cell with the minimum index from the at least one cell. Finally, select a CoreSET from the cell with the minimum index that belongs to the second CoreSET, is associated with the minimum index USS, and is associated with one TCI state to obtain the second reference CoreSET.

[0253] As can be seen, by using the "Guidelines 2-6" described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the second reference CORESET) that is associated with one TCI state and the smallest index of the USS during the PDCCH listening time overlapping on the active downlink BWP. This enables the terminal to listen to the PDCCH in a COSESET associated with two or one TCI state, thereby ensuring the flexibility, robustness and stability of system communication.

[0254] It should be noted that, unlike the second reference CORESET in "Guideline 2-1" and "Guideline 2-2" above, the second reference CORESET in "Guideline 2-5" and "Guideline 2-6" is only a CORESET associated with one TCI state.

[0255] Principle 2-z-1: (z is 5 or 6)

[0256] In one possible example, the second reference CORESET is a CORESET associated with one TCI state, and the first CORESET may include: one of the M CORESETs associated with two TCI states and N CORESETs associated with one TCI state that has the same QCL type D attribute as the second reference CORESET and is associated with one TCI state, and / or one of the CORESETs associated with the same QCL type D attribute as the third reference CORESET and is associated with two TCI states; the third reference CORESET is one determined from the M CORESETs associated with two TCI states according to the QCL type D attribute of the second reference CORESET.

[0257] Specifically, one of the QCL type D properties of the third reference CORESET is the same as the QCL type D property of the second reference CORESET.

[0258] It should be noted that in "Guideline 2-z-1", the first CORESET contains at least one CORESET associated with one TCI state and / or at least one CORESET associated with two TCI states, and the QCL-typeD attribute of the CORESET associated with one TCI state is the same as the QCL-typeD attribute of the second reference CORESET, and one of the QCL-typeD attributes of the CORESET associated with two TCI states is the same as the QCL-typeD attribute of the second reference CORESET.

[0259] The following embodiments of this application will specifically explain the criteria for selecting a third reference CORESET from M CORESETs associated with two TCI states.

[0260] Guideline 2-z-1-1:

[0261] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a CORESET with associated CSS in the third CORESET, then the third reference CORESET can be: a CORESET belonging to the third CORESET and associated with the smallest index CSS in at least one cell of the cell to which the CORESET with associated CSS belongs; the third CORESET includes: a CORESET with at least one QCL type D property that is the same as the QCL type D property of the second reference CORESET and associated with two TCI states in M ​​CORESETs.

[0262] It should be noted that, for the third CORESET, it can be understood that, in this embodiment of the application, at least one CORESET with the same QCL-typeD attribute as the second reference CORESET can be selected from M CORESETs associated with two TCI states to obtain the third CORESET. In other words, since the second reference CORESET is a CORESET associated with one TCI state, the third CORESET includes at least one CORESET associated with two TCI states, and the QCL-typeD attribute corresponding to at least one of these two TCI states is the same as the QCL-typeD attribute of the second reference CORESET.

[0263] As can be seen, by using the "Guideline 2-z-1-1" described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the second reference CORESET) associated with one TCI state and associated with (including) the minimum index of the CSS or USS, and a COSESET (i.e., the third reference CORESET) associated with two TCI states and associated with (including) the minimum index of the CSS, thereby enabling the terminal to listen to the PDCCH in the COSESET associated with one TCI state and / or the CORESET associated with two TCI states, thus ensuring the flexibility, robustness and stability of system communication.

[0264] Guideline 2-z-1-2:

[0265] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no associated CSS CORESET in the third CORESET, then the third reference CORESET can be: a CORESET belonging to the third CORESET and associated with the minimum index USS in at least one cell of the cell to which the CORESET associated with the USS belongs; the third CORESET includes: a CORESET in M ​​associated with 2 TCI states where at least one QCL type D property is the same as the QCL type D property of the second reference CORESET and is associated with 2 TCI states.

[0266] It should be noted that if there is no associated CSS CORESET in the third CORESET, then the CORESET belonging to the smallest index cell of at least one cell of the CORESET associated with (including) the USS and associated with the smallest index USS in the third CORESET is taken as the third reference CORESET. That is, firstly, at least one CORESET with the same QCL-typeD property as the QCL-typeD property of the second reference CORESET is selected from M CORESETs associated with 2 TCI states to obtain the third CORESET. Then, CORESETs associated with the USS are selected from the third CORESET to obtain at least one CORESET, and the cell to which the at least one CORESET belongs is determined to obtain at least one cell. Next, the cell with the smallest index is selected from the at least one cell. Finally, CORESETs belonging to the third CORESET and associated with the smallest index USS are selected from the cell with the smallest index to obtain the third reference CORESET.

[0267] As can be seen, by using the "Guideline 2-z-1-2" described in this example, the embodiments of this application can accurately and quickly determine a COSESET (i.e., the second reference CORESET) associated with one TCI state and associated with (including) the minimum index of a CSS or USS, and a COSESET (i.e., the third reference CORESET) associated with two TCI states and associated with (including) the minimum index of a USS, thereby enabling the terminal to listen to the PDCCH in the COSESET associated with one TCI state and / or the CORESET associated with two TCI states, thus ensuring the flexibility, robustness and stability of system communication.

[0268] Consistent with the above embodiments, this application provides a flowchart of another monitoring method. Please refer to [link / reference]. Figure 3 The method includes:

[0269] S310. The network device configures L control resource sets (CORESETs) to the terminal. During the PDCCH listening time that overlaps on the active downlink BWP, there are M control resource sets (CORESETs) associated with 2 TCI states and N CORESETs associated with 1 TCI state among the L CORESETs. M is an integer greater than or equal to 1, N is an integer greater than or equal to 0, and L is an integer greater than or equal to the sum of M and N.

[0270] Specifically, the M CORESETs associated with two TCI states may include a first reference CORESET, which can be a CORESET associated with two TCI states.

[0271] Specifically, the M CORESETs associated with 2 TCI states and the N CORESETs associated with 2 TCI states may include a second reference CORESET and a first CORESET. The second reference CORESET is a CORESET associated with 2 or 1 TCI states, and the first CORESET is determined according to the QCL type D attribute of the second reference CORESET.

[0272] It should be noted that the descriptions of the various embodiments in this application each have their own emphasis, therefore Figure 3 For parts not described in detail in the embodiments, please refer to [link / reference]. Figure 2 The relevant descriptions of the embodiments will not be repeated here.

[0273] As can be seen from the embodiments of this application, during the overlapping PDCCH listening time on the active downlink BWP, among the L CORESETs configured by the network device for the terminal, there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state. Therefore, the terminal can listen to the PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state. Thus, when the terminal supports being configured with CORESETs with 2 TCI states, it can listen to the PDCCH in CORESETs associated with 2 TCI states and / or CORESETs associated with 1 TCI state, thereby ensuring the flexibility, robustness and stability of system communication.

[0274] The foregoing primarily describes the solutions of the embodiments of this application from a methodological perspective. It is understood that, in order to achieve the aforementioned functions, the terminal or network device includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0275] This application embodiment can divide a terminal or network device into functional units based on the above method examples. For example, each function can be divided into separate functional units, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software program module. It should be noted that the unit division in this application embodiment is illustrative and only represents a logical functional division; in actual implementation, there may be other division methods.

[0276] When using integrated units, Figure 4 A functional block diagram of a monitoring device is provided. The monitoring device 400 includes a processing unit 402 and a communication unit 403. The processing unit 402 is used to control and manage the actions of the terminal. For example, the processing unit 402 is used to support the terminal in performing... Figure 2 The steps in the process and other processes used in the technical solutions described in this application. The communication unit 403 is used to support communication between the terminal and other devices in the wireless communication system. The listening device 400 may also include a storage unit 401 for storing the program code executed by the listening device 400 and the data transmitted.

[0277] It should be noted that the listening device 400 can be a chip or a chip module.

[0278] The processing unit 402 can be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processing unit 402 can also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc. The communication unit 403 can be a communication interface, transceiver, transceiver circuit, etc., and the storage unit 401 can be a memory. When the processing unit 402 is a processor, the communication unit 403 is a communication interface, and the storage unit 401 is a memory, the listening device 400 involved in the embodiments of this application can be... Figure 6 The terminal shown.

[0279] In specific implementation, the processing unit 402 is used to execute any step performed by the terminal as described in the above method embodiment, and when performing data transmission such as sending, it can optionally call the communication unit 403 to complete the corresponding operation. A detailed description follows.

[0280] The processing unit 402 is configured to: if, during the monitoring of the PDCCH candidate associated control resource set CORESETs on the active downlink BWP, there are M CORESETs associated with 2 Transmission Configuration Indicator (TCI) states and N CORESETs associated with 1 TCI state, then monitor the PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state, where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 0.

[0281] It should be noted that, Figure 4 The specific implementation of each operation in the embodiments can be found in the above description. Figure 2 The descriptions in the method embodiments shown will not be repeated here.

[0282] As can be seen in the embodiments of this application, if there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state among the PDCCH candidate associated CORESETs monitored during the PDCCH monitoring time overlapping on the active downlink BWP, then the physical downlink control channel monitoring device can monitor PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state. Thus, when the terminal supports the configuration of CORESETs with 2 TCI states, it can monitor PDCCH in the CORESETs associated with 2 TCI states and / or the CORESETs associated with 1 TCI state, thereby ensuring the flexibility, robustness and stability of system communication.

[0283] In one possible example, regarding listening to PDCCH in M ​​CORESETs associated with 2 TCI states and / or N CORESETs associated with 1 TCI state, processing unit 302 is specifically configured to: listen to PDCCH in a first reference CORESET and / or a CORESET having the same quasi-co-addressable QCL type D attribute as the first reference CORESET and associated with 2 TCI states, wherein the first reference CORESET is one of the M CORESETs associated with 2 TCI states; or, listen to PDCCH in a second reference CORESET and / or a first CORESET, wherein the second reference CORESET is one of the M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state, wherein the first CORESET is determined according to the QCL type D attribute of the second reference CORESET.

[0284] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a cell in the first cell set that contains a CORESET with associated common search space (CSS) and associated with two TCI states, then the first reference CORESET is: the CORESET with associated two TCI states and associated with the smallest index among at least one cell in the first cell set that contains a CORESET with associated CSS and associated with two TCI states; the first cell set includes: M cells corresponding to CORESETs with associated two TCI states and N cells corresponding to CORESETs with associated one TCI state.

[0285] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no cell in the first cell set that includes a CORESET with associated CSS and associated 2 TCI states, then the first reference CORESET is: the CORESET with associated 2 TCI states and associated minimum index among the cells in the first cell set that contain at least one cell with associated user-specific search space (USS) and associated 2 TCI states.

[0286] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if a CORESET containing a CSS exists in the first cell set, then the second reference CORESET is: the CORESET with the smallest index of the associated CSS in the cell containing the associated CORESET in the first cell set.

[0287] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no cell in the first cell set that contains a CORESET with an associated CSS, then the second reference CORESET is: the CORESET with the smallest associated index USS in the cell with the smallest index among the cells in the first cell set that contain a CORESET with an associated USS.

[0288] In one possible example, if the second reference CORESET is a CORESET associated with 1 TCI state, then the first CORESET includes: at least one of the M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with 1 TCI state and / or associated with 2 TCI states.

[0289] In one possible example, if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, among which the CORESETs with the same QCL type D attribute as the second reference CORESET and associated with one TCI state and / or associated with two TCI states, and the QCL type D attribute corresponding to each of the two TCI states is the same.

[0290] In one possible example, if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: one of the M CORESETs associated with two TCI states and N CORESETs associated with one TCI state that has the same QCL type D attribute as the second reference CORESET and is associated with one TCI state, and / or one of the CORESETs associated with the same QCL type D attribute as the third reference CORESET and is associated with two TCI states; the third reference CORESET is one determined from the M CORESETs associated with two TCI states according to the QCL type D attribute of the second reference CORESET.

[0291] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a CORESET with associated CSS in the third CORESET, then the third reference CORESET is: a CORESET belonging to the third CORESET and associated with the smallest index CSS in at least one cell of the cell to which the CORESET with associated CSS belongs; the third CORESET includes: a CORESET with at least one QCL type D property that is the same as the QCL type D property of the second reference CORESET and associated with two TCI states in M ​​CORESETs.

[0292] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no associated CSS CORESET in the third CORESET, then the third reference CORESET is: a CORESET belonging to the third CORESET and associated with the minimum index USS in at least one cell of the cell to which the CORESET associated with the USS belongs; the third CORESET includes: a CORESET in M ​​associated with 2 TCI states where at least one QCL type D property is the same as the QCL type D property of the second reference CORESET and is associated with 2 TCI states.

[0293] In one possible example, if the second reference CORESET is a CORESET associated with two TCI states, then the first CORESET includes: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, which are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with two TCI states, and / or CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with one TCI state.

[0294] When using integrated units, Figure 5 A functional block diagram of another monitoring device is provided. The monitoring device 500 includes a processing unit 502 and a communication unit 503. The processing unit 502 is used to control and manage the actions of network devices. For example, the processing unit 502 is used to support terminal execution. Figure 3 The steps in the process and other processes used in the technical solutions described in this application. The communication unit 503 is used to support communication between the network device and other devices in the wireless communication system. The listening device 500 may also include a storage unit 501 for storing the program code executed by the listening device 500 and the data transmitted.

[0295] It should be noted that the listening device 500 can be a chip or a chip module.

[0296] The processing unit 502 can be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processing unit 502 can also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc. The communication unit 503 can be a communication interface, transceiver, transceiver circuit, etc., and the storage unit 501 can be a memory. When the processing unit 502 is a processor, the communication unit 503 is a communication interface, and the storage unit 501 is a memory, the listening device 500 involved in the embodiments of this application can be... Figure 7 The network device shown.

[0297] In specific implementation, the processing unit 502 is used to execute any step performed by the network device as described in the above method embodiment, and when performing data transmission such as sending, it may selectively call the communication unit 503 to complete the corresponding operation. A detailed description follows.

[0298] The processing unit 502 is configured to: configure L control resource sets CORESET to the terminal, and during the PDCCH listening time overlapping on the active downlink BWP, there are M CORESET associated with 2 TCI states and N CORESET associated with 1 TCI state among the L CORESET, where M is an integer greater than or equal to 1, N is an integer greater than or equal to 0, and L is an integer greater than or equal to the sum of M and N.

[0299] It should be noted that, Figure 5 The specific implementation of each operation in the embodiments can be found in the above description. Figure 2 and Figure 3 The descriptions in the method embodiments shown will not be repeated here.

[0300] As can be seen from the embodiments of this application, during the overlapping PDCCH listening time on the active downlink BWP, among the L CORESETs configured for the terminal, there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state. Therefore, the terminal can listen to the PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state, thereby enabling PDCCH listening in CORESETs associated with 2 TCI states and / or CORESETs associated with 1 TCI state when the terminal supports CORESETs configured with 2 TCI states, thus ensuring the flexibility, robustness, and stability of system communication.

[0301] In one possible example, the M CORESETs associated with 2 TCI states include a first reference CORESET, which is a CORESET associated with 2 TCI states; or, the M CORESETs associated with 2 TCI states and the N CORESETs associated with 2 TCI states include a second reference CORESET and a first CORESET, where the first reference CORESET is a CORESET associated with 2 or 1 TCI states; the first CORESET is determined based on the QCL type D attribute of the second reference CORESET.

[0302] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a cell in the first cell set that contains a common search space (CSS) and is associated with two TCI states, then the first reference CORESET is: the CORESET with the smallest index among the cells in the first cell set that contain at least one CORESET with associated CSS and two TCI states, and is associated with two TCI states and the smallest index CSS; the first cell set includes: M cells corresponding to CORESETs with two TCI states and N cells corresponding to CORESETs with one TCI state.

[0303] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no cell in the first cell set that is associated with a CSS and a CORESET with two TCI states, then the first reference CORESET is: the CORESET in the cell with the smallest index among at least one cell in the first cell set that is associated with a user-specific search space (USS) and a CORESET with two TCI states.

[0304] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a cell in the first cell set that contains a CORESET with associated CSS, then the second reference CORESET is: the CORESET with the smallest associated index CSS in the cell with the smallest index among the cells in the first cell set that contain a CORESET with associated CSS.

[0305] In one possible example, during PDCCH listening times that overlap on an active downlink BWP, if there is no cell in the first cell set that contains a CORESET with a CSS, then the second reference CORESET is: the CORESET with the smallest index of the cell in the first cell set that contains the CORESET with the smallest index of the associated USS.

[0306] In one possible example, if the second reference CORESET is a CORESET associated with 1 TCI state, then the first CORESET includes: at least one of the M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with 1 TCI state and / or associated with 2 TCI states.

[0307] In one possible example, if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, among which the CORESETs with the same QCL type D attribute as the second reference CORESET and associated with one TCI state and / or associated with two TCI states, and the QCL type D attribute corresponding to each of the two TCI states is the same.

[0308] In one possible example, if the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: one of the M CORESETs associated with two TCI states and N CORESETs associated with one TCI state that has the same QCL type D attribute as the second reference CORESET and is associated with one TCI state, and / or one of the CORESETs associated with the same QCL type D attribute as the third reference CORESET and is associated with two TCI states; the third reference CORESET is one determined from the M CORESETs associated with two TCI states according to the QCL type D attribute of the second reference CORESET.

[0309] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is a CORESET with associated CSS in the third CORESET, then the third reference CORESET is: a CORESET belonging to the third CORESET and associated with the smallest index CSS in at least one cell of the cell to which the CORESET with associated CSS belongs; the third CORESET includes: a CORESET with at least one QCL type D property that is the same as the QCL type D property of the second reference CORESET and associated with two TCI states in M ​​CORESETs.

[0310] In one possible example, during the PDCCH listening time overlapping on an active downlink BWP, if there is no associated CSS CORESET in the third CORESET, then the third reference CORESET is: a CORESET that belongs to the third CORESET and is associated with the minimum index of the cell to which the CORESET associated with the USS belongs; the third CORESET includes: a CORESET in M ​​associated with 2 TCI states where at least one QCL type D property is the same as the QCL type D property of the second reference CORESET and is associated with 2 TCI states.

[0311] In one possible example, if the second reference CORESET is a CORESET associated with two TCI states, then the first CORESET includes: M CORESETs associated with two TCI states and N CORESETs associated with one TCI state, which are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with two TCI states, and / or CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with one TCI state.

[0312] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application. The terminal 600 includes a processor 610, a memory 620, a communication interface 630, and a communication bus for connecting the processor 610, the memory 620, and the communication interface 630.

[0313] The memory 620 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used to store program code executed by terminal 600 and data transmitted.

[0314] The communication interface 630 is used to receive and send data.

[0315] The processor 610 can be one or more CPUs. If the processor 610 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0316] The processor 610 in terminal 600 is used to read one or more programs 621 stored in memory 620 and perform the following operations: if there are M CORESETs associated with 2 Transmission Configuration Indicator (TCI) states and N CORESETs associated with 1 TCI state in the PDCCH candidate associated control resource set CORESETs monitored during the PDCCH monitoring time of the PDCCH overlapping on the active downlink BWP, then PDCCH is monitored in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state, where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 0.

[0317] It should be noted that the specific implementation of each operation can adopt the methods described above. Figure 2 The corresponding description of the method embodiments shown indicates that the terminal 600 can be used to execute the terminal-side methods of the above method embodiments of this application, and will not be described in detail here.

[0318] It is evident that if, during the overlapping PDCCH listening time on the active downlink BWP, there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state among the candidate CORESETs of PDCCH, then the terminal can listen to PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state. Thus, when the terminal supports being configured with CORESETs of 2 TCI states, it can listen to PDCCH in CORESETs associated with 2 TCI states and / or CORESETs associated with 1 TCI state, thereby ensuring the flexibility, robustness, and stability of system communication.

[0319] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a network device provided in an embodiment of this application. The network device 700 includes a processor 710, a memory 720, a communication interface 730, and a communication bus for connecting the processor 710, the memory 720, and the communication interface 730.

[0320] The memory 720 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used to store program code executed by the network device 700 and data transmitted.

[0321] The communication interface 730 is used to receive and send data.

[0322] The processor 710 can be one or more CPUs. If the processor 710 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0323] The processor 710 in the network device 700 is used to read one or more programs 721 stored in the memory 720 and perform the following operations: configure L CORESETs to the terminal, and during the PDCCH listening time overlapping on the active downlink BWP, there are M CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state among the L CORESETs, where M is an integer greater than or equal to 1, N is an integer greater than or equal to 0, and L is an integer greater than or equal to the sum of M and N.

[0324] It should be noted that the specific implementation of each operation can adopt the methods described above. Figure 2 and Figure 3 The corresponding description of the method embodiments shown indicates that the network device 700 can be used to execute the network device-side methods of the above method embodiments of this application, and will not be described in detail here.

[0325] It is evident that during the overlapping PDCCH listening time on the active downlink BWP, among the L CORESETs configured by the network device for the terminal, there are M control resource sets CORESETs associated with 2 TCI states and N CORESETs associated with 1 TCI state. Therefore, the terminal can listen for PDCCH in the M CORESETs associated with 2 TCI states and / or the N CORESETs associated with 1 TCI state. This allows the terminal to listen for PDCCH in CORESETs associated with 2 TCI states and / or CORESETs associated with 1 TCI state, provided the terminal supports CORESETs configured with 2 TCI states, thus ensuring the flexibility, robustness, and stability of system communication.

[0326] This application also provides a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the above method embodiments for a terminal or management device.

[0327] This application also provides a computer program product, wherein the computer program product includes a computer program operable to cause a computer to perform some or all of the steps described in the above method embodiments for a terminal or management device. This computer program product may be a software installation package.

[0328] In the above embodiments, the descriptions of each embodiment in this application have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0329] The steps of the methods or algorithms described in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, portable hard disks, read-only optical discs (CD-ROMs), or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a terminal or management device. Of course, the processor and storage medium can also exist as discrete components in a terminal or management device.

[0330] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in the embodiments of this application can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0331] The modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both. For example, for devices and products applied to or integrated into a chip, all modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits. For devices and products applied to or integrated into a chip module, all modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0332] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A monitoring method, characterized in that, include: If, during the monitoring of the Physical Downlink Control Channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), there are M CORESETs associated with two Transmission Configuration Indicator (TCI) states and N CORESETs associated with one TCI state among the control resource sets associated with candidate PDCCHs monitored, then PDCCHs are monitored in the second reference CORESET and the first CORESET, where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 0. Wherein, if there is a cell in the first cell set that contains a CORESET of associated public search space CSS, then the second reference CORESET is: the CORESET of associated minimum index CSS in the cell with the minimum index in the cell containing the CORESET of associated CSS in the first cell set; If there is no cell in the first cell set that contains a CORESET with an associated CSS, then the second reference CORESET is: the CORESET with the smallest index of the associated USS in the cell that contains the CORESET with the smallest index of the associated user-specific search space (USS) in the first cell set. The first cell set includes: the M cells corresponding to CORESETs associated with 2 TCI states and the N cells corresponding to CORESETs associated with 1 TCI state; If the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: at least one of the M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with one and / or two TCI states.

2. The method according to claim 1, characterized in that, If the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: The M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state are all CORESETs that have the same QCL type D attribute as the second reference CORESET and are associated with one TCI state and / or two TCI states, and the QCL type D attribute corresponding to each of the two TCI states is the same.

3. The method according to claim 1, characterized in that, If the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: The CORESETs among the M CORESETs associated with 2 TCI states and the N CORESETs associated with 1 TCI state are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with 1 TCI state, and / or CORESETs with the same QCL type D attribute as the third reference CORESET and associated with 2 TCI states. The third reference CORESET is one of the M CORESETs associated with two TCI states, determined according to the QCL type D attribute of the second reference CORESET.

4. The method according to claim 3, characterized in that, During the PDCCH listening time overlapping on the active downlink BWP, if there is a CORESET with associated CSS in the third CORESET, then the third reference CORESET is: The CORESET that belongs to the third CORESET and is associated with the smallest index CSS in at least one cell of the CORESET to which the associated CSS belongs; The third CORESET includes: at least one of the M CORESETs associated with two TCI states, whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with two TCI states.

5. The method according to claim 3, characterized in that, During the PDCCH listening time overlapping on the active downlink BWP, if there is no associated CSS CORESET in the third CORESET, then the third reference CORESET is: The CORESET that belongs to the third CORESET and is associated with the minimum index of the cell in at least one cell of the CORESET to which the USS is associated; The third CORESET includes: at least one of the M CORESETs associated with two TCI states, whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with two TCI states.

6. The method according to claim 1, characterized in that, If the second reference CORESET is a CORESET associated with two TCI states, then the first CORESET includes: The CORESETs among the M CORESETs associated with 2 TCI states and the N CORESETs associated with 1 TCI state are either CORESETs with the same QCL type D attribute as the second reference CORESET and associated with 2 TCI states, or CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with 1 TCI state.

7. A monitoring method, characterized in that, include: L control resource sets (CORESETs) are configured for the terminal. During the listening time of the physical downlink control channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), among the L CORESETs, there are M control resource sets (CORESETs) associated with two Transmission Configuration Indicator (TCI) states and N CORESETs associated with one TCI state. M is an integer greater than or equal to 1, N is an integer greater than or equal to 0, and L is an integer greater than or equal to the sum of M and N. Among them, the M CORESETs associated with 2 TCI states and the N CORESETs associated with 2 TCI states include a second reference CORESET and a first CORESET; During the PDCCH listening time overlapping on the active downlink BWP, if there is a cell in the first cell set that contains a CORESET with associated CSS, then the second reference CORESET is: the CORESET with the smallest associated index among the cells in the first cell set that contain the CORESET with associated CSS. During the PDCCH listening time overlapping on the active downlink BWP, if there is no cell in the first cell set that contains a CORESET with associated CSS, then the second reference CORESET is: the CORESET with the smallest associated USS among the cells in the first cell set that contain a CORESET with associated USS. The first cell set includes: the M cells corresponding to CORESETs associated with 2 TCI states and the N cells corresponding to CORESETs associated with 1 TCI state; If the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: at least one of the M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with one and / or two TCI states.

8. The method according to claim 7, characterized in that, If the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: The M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state are all CORESETs that have the same QCL type D attribute as the second reference CORESET and are associated with one TCI state and / or two TCI states, and the QCL type D attribute corresponding to each of the two TCI states is the same.

9. The method according to claim 7, characterized in that, If the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: The CORESETs among the M CORESETs associated with 2 TCI states and the N CORESETs associated with 1 TCI state are CORESETs with the same QCL type D attribute as the second reference CORESET and associated with 1 TCI state, and / or CORESETs with the same QCL type D attribute as the third reference CORESET and associated with 2 TCI states. The third reference CORESET is one of the M CORESETs associated with two TCI states, determined according to the QCL type D attribute of the second reference CORESET.

10. The method according to claim 9, characterized in that, During the PDCCH listening time overlapping on the active downlink BWP, if there is a CORESET with associated CSS in the third CORESET, then the third reference CORESET is: The CORESET that belongs to the third CORESET and is associated with the smallest index CSS in at least one cell of the CORESET to which the associated CSS belongs; The third CORESET includes: at least one of the M CORESETs associated with two TCI states, whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with two TCI states.

11. The method according to claim 9, characterized in that, During the PDCCH listening time overlapping on the active downlink BWP, if there is no associated CSS CORESET in the third CORESET, then the third reference CORESET is: The CORESET that belongs to the third CORESET and is associated with the minimum index of the cell in at least one cell of the CORESET to which the USS is associated; The third CORESET includes: at least one of the M CORESETs associated with two TCI states, whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with two TCI states.

12. The method according to claim 9, characterized in that, If the second reference CORESET is a CORESET associated with two TCI states, then the first CORESET includes: The CORESETs among the M CORESETs associated with 2 TCI states and the N CORESETs associated with 1 TCI state are either CORESETs with the same QCL type D attribute as the second reference CORESET and associated with 2 TCI states, or CORESETs with at least one QCL type D attribute as the second reference CORESET and associated with 1 TCI state.

13. A listening device, characterized in that, The device includes a processing unit, the processing unit being used for: If, during the monitoring of the Physical Downlink Control Channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), there are M CORESETs associated with two Transmission Configuration Indicator (TCI) states and N CORESETs associated with one TCI state among the control resource sets associated with candidate PDCCHs monitored, then PDCCHs are monitored in the second reference CORESET and the first CORESET, where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 0. Wherein, if there is a cell in the first cell set that contains a CORESET with associated CSS, then the second reference CORESET is: the CORESET with the smallest associated index among the cells in the first cell set that contain a CORESET with associated CSS. If there is no cell in the first cell set that contains a CORESET with associated CSS, then the second reference CORESET is: the CORESET with the smallest associated USS among the cells in the first cell set that contains a CORESET with associated USS. The first cell set includes: the M cells corresponding to CORESETs associated with 2 TCI states and the N cells corresponding to CORESETs associated with 1 TCI state.

14. A listening device, characterized in that, The device includes a processing unit, the processing unit being used for: L control resource sets (CORESETs) are configured for the terminal. During the listening time of the physical downlink control channel (PDCCH) overlapping on the active downlink bandwidth portion (BWP), among the L CORESETs, there are M control resource sets (CORESETs) associated with two Transmission Configuration Indicator (TCI) states and N CORESETs associated with one TCI state. M is an integer greater than or equal to 1, N is an integer greater than or equal to 0, and L is an integer greater than or equal to the sum of M and N. Among them, the M CORESETs associated with 2 TCI states and the N CORESETs associated with 2 TCI states include a second reference CORESET and a first CORESET; During the PDCCH listening time overlapping on the active downlink BWP, if there is a cell in the first cell set that contains a CORESET with associated CSS, then the second reference CORESET is: the CORESET with the smallest associated index among the cells in the first cell set that contain the CORESET with associated CSS. During the PDCCH listening time overlapping on the active downlink BWP, if there is no cell in the first cell set that contains a CORESET with associated CSS, then the second reference CORESET is: the CORESET with the smallest associated USS among the cells in the first cell set that contain a CORESET with associated USS. The first cell set includes: the M cells corresponding to CORESETs associated with 2 TCI states and the N cells corresponding to CORESETs associated with 1 TCI state; If the second reference CORESET is a CORESET associated with one TCI state, then the first CORESET includes: at least one of the M CORESETs associated with two TCI states and the N CORESETs associated with one TCI state whose QCL type D attribute is the same as the QCL type D attribute of the second reference CORESET and is associated with one and / or two TCI states.

15. A terminal, characterized in that, The method includes a processor, a memory, a communication interface, and one or more programs, said programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps of the method as described in any one of claims 1-6.

16. A network device, characterized in that, The method includes a processor, a memory, a communication interface, and one or more programs, said programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps of the method as described in any one of claims 7-12.

17. A computer-readable storage medium, characterized in that, It stores a computer program for electronic data interchange, wherein the computer program causes the computer to perform the method as described in any one of claims 1-12.

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