Physical channel monitoring method and terminal equipment

Abstract

The present application relates to a physical channel monitoring method and terminal device, the method comprising: the terminal device is configured with at least one serving cell group, a first serving cell group in the at least one serving cell group corresponds to first information, the terminal device is configured with a periodic channel occupation length on the first serving cell, the periodic channel occupation length comprises the maximum channel occupation length, the maximum channel occupation length is smaller than the periodic channel occupation length, and the terminal device performs physical downlink control channel (PDCCH) monitoring on the first serving cell according to second information, the first serving cell is a serving cell in the first serving cell group; wherein the second information comprises at least one of the periodic channel occupation length, the maximum channel occupation length and the first information. According to the embodiment of the invention, the switching behavior of the terminal equipment on the search space SS group on the service cell under the FBE scene can be determined.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is a divisional application of the Chinese invention patent application filed on March 26, 2020, with application number 202080093794.4, and the invention name is “Physical Channel Monitoring Method and Terminal Equipment”. Technical Field

[0003] The present application relates to the field of communications, and in particular to a physical channel monitoring method and terminal equipment. Background Art

[0004] Generally, communication devices using unlicensed spectrum must follow the "Listen Before Talk (LBT)" principle, that is, before a communication device sends a signal on a channel of the unlicensed spectrum, it must first perform channel sensing. Only when the channel sensing result is that the channel is idle can the communication device send a signal; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send a signal. From the perspective of network layout, the LBT method can be divided into two types. One is the channel access method based on load equipment (LBE), also known as dynamic channel occupancy. The other is the channel access method based on frame structure equipment (FBE), also known as semi-static channel occupancy. In one transmission, the duration of signal transmission using the channel of the unlicensed spectrum by the communication device cannot exceed the maximum channel occupancy time (MCOT).

[0005] In the FBE scenario, the channel resources that the communication device can use for service transmission appear periodically. Specifically, the communication device performs channel detection on the channel in the idle period to evaluate the channel availability (sensing forevaluating a channel availability, also known as idle channel assessment CCA). If the channel detection is successful, the channel occupancy time (COT) in the next fixed frame period can be used for signal transmission; if the channel detection fails, the channel occupancy time in the next fixed frame period cannot be used for signal transmission.

[0006] In the NR-U (NR based access to Unlicensed spectrum) system working in the unlicensed spectrum, a terminal can be configured with two search space groups (SS groups) on a serving cell, sometimes also referred to as search space sets groups (SSS groups), which are used to monitor the physical downlink control channel PDCCH.

[0007] In the FBE scenario, how to determine the switching behavior of the search space group of the terminal on the serving cell or on the serving cell group is a problem that needs to be studied at present. Summary of the invention

[0008] In view of this, an embodiment of the present application provides a physical channel monitoring method and a terminal device, which can be used to determine the switching behavior of the search space group of the terminal on the serving cell.

[0009] The present application provides a physical channel monitoring method, including:

[0010] The terminal device is configured with a periodic channel occupancy length on a first service cell, and the first service cell corresponds to first information, wherein the periodic channel occupancy length includes a maximum channel occupancy length, and the maximum channel occupancy length is less than the periodic channel occupancy length;

[0011] The terminal device monitors the physical downlink control channel PDCCH of the first service cell according to the second information, wherein the second information includes at least one of the periodic channel occupancy length, the maximum channel occupancy length and the first information.

[0012] The present application provides a physical channel monitoring method, including:

[0013] The terminal device is configured with at least one serving cell group, and a first serving cell group in the at least one serving cell group corresponds to the first information;

[0014] The terminal device is configured with a periodic channel occupancy length on the first service cell, wherein the periodic channel occupancy length includes a maximum channel occupancy length, and the maximum channel occupancy length is less than the periodic channel occupancy length;

[0015] The terminal device monitors the physical downlink control channel PDCCH of the first service cell according to the second information, and the first service cell is a service cell in the first service cell group; wherein the second information includes the periodic channel occupancy length, the maximum channel occupancy length and at least one of the first information.

[0016] The present application also provides a terminal device, including:

[0017] A physical channel monitoring module is used to monitor the physical downlink control channel PDCCH of the first service cell according to second information when a terminal device is configured with a periodic channel occupancy length on the first service cell and the first service cell corresponds to first information; wherein the periodic channel occupancy length includes a maximum channel occupancy length, and the maximum channel occupancy length is less than the periodic channel occupancy length; and the second information includes at least one of the periodic channel occupancy length, the maximum channel occupancy length and the first information.

[0018] The present application also provides a terminal device, including:

[0019] A physical channel monitoring module is used to monitor the physical downlink control channel PDCCH of the first service cell according to second information when a terminal device is configured with at least one service cell group and a first service cell group in the at least one service cell group corresponds to first information, and the terminal device is configured with a periodic channel occupancy length on the first service cell in the first service cell group; wherein the second information includes at least one item of the periodic channel occupancy length, the maximum channel occupancy length and the first information.

[0020] An embodiment of the present application also provides a terminal device, including: a processor and a memory, wherein the memory is used to store a computer program, and the processor calls and runs the computer program stored in the memory to execute the physical channel monitoring method as described above.

[0021] An embodiment of the present application also provides a chip, including: a processor, used to call and run a computer program from a memory, so that a device equipped with the chip executes the physical channel monitoring method as described above.

[0022] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute the physical channel monitoring method as described above.

[0023] An embodiment of the present application also provides a computer program product, including computer program instructions, wherein the computer program instructions enable a computer to execute the physical channel monitoring method as described above.

[0024] An embodiment of the present application also provides a computer program, which enables a computer to execute the physical channel monitoring method as described above.

[0025] An embodiment of the present application considers a terminal device in a service cell under an FBE scenario (or a semi-static channel access mode). If the terminal device is configured with a periodic channel occupancy length on a first service cell, and the first service cell corresponds to first information, such as search space switching indication information, the terminal device may perform PDCCH monitoring on the first service cell based on second information, wherein the second information may include the periodic channel occupancy length, and may also include the maximum channel occupancy length included in the periodic channel occupancy length, and may also include the first information corresponding to the first service cell, thereby determining the switching behavior of the search space SS group of the terminal device on the first service cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the communication system architecture of an embodiment of the present application.

[0027] Figure 2-5 It is a schematic diagram of the principle effect of explicit switching of search space groups when a terminal device performs physical channel monitoring.

[0028] Figure 6 It is a flowchart of a physical channel monitoring method according to an embodiment of the present application.

[0029] Figure 7 This is a schematic diagram of the principle effect of the semi-static channel access mode.

[0030] Figure 8 It is a flowchart of a physical channel monitoring method according to another embodiment of the present application.

[0031] Fig. 9 and 10 It is a schematic structural block diagram of a terminal device according to an embodiment of the present application.

[0032] Fig.11 It is a schematic block diagram of a communication device according to an embodiment of the present application.

[0033] Fig.12 It is a schematic block diagram of the chip of an embodiment of the present application.

[0034] Fig.13 It is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0036] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of 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, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0037] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0038] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0039] Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to an authorized spectrum.

[0040] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0041] The terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0042] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).

[0043] In the embodiment of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical, 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.

[0044] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0045] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (EvolutionalNode B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, etc.

[0046] As an example but not limitation, in an embodiment of the present application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0047] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0048] Figure 1 A network device 1100 and two terminal devices 1200 are schematically shown. Optionally, the wireless communication system 1000 may include multiple network devices 1100, and each network device 1100 may include other number of terminal devices within its coverage area, which is not limited in the present embodiment of the application. Figure 1 The wireless communication system 1000 shown may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but this is not limited in the embodiments of the present application.

[0049] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" is used to describe the association relationship of associated objects. For example, it means that there are three kinds of relationships between the associated objects. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " in this article generally means that the associated objects are in an "or" relationship.

[0050] In order to clearly explain the concept of the embodiment of the present application, firstly, a brief description is given of the channel access method of FBE in the communication system. The embodiment of the present application includes at least part of the following contents.

[0051] In the art, in the channel access mode of FBE, or in other words, in the semi-static channel access mode, the frame structure appears periodically, and a frame structure includes a fixed frame period (FFP), a channel occupancy time (COT), and an idle period (IP). The length of FFP may range from 1 to 10 ms, for example, the length of the channel occupancy time COT does not exceed 95% of the length of the fixed frame period FFP, the length of the idle period IP is at least 5% of the length of the fixed frame period FFP, and the minimum value of IP is 100us, and is located at the end of the fixed frame period FFP.

[0052] On the other hand, in a communication system such as an NR-U system, when a search space SS is configured for a UE, the configuration parameters corresponding to the search space may include a search space group identification ID parameter, such as searchSpaceGroupIdList-r16. If the UE is configured with a search space group ID parameter, the search space group ID parameter may indicate that the search space includes one of the following three cases:

[0053] ① The search space group identifier corresponding to the search space is the first group identifier, for example, the search space corresponds to group 0, or the search space belongs to group 0;

[0054] ② The search space group identifier corresponding to the search space is the second group identifier, for example, the search space corresponds to group 1, or the search space belongs to group 1;

[0055] ③ The search space group identifier corresponding to the search space corresponds to both the first group identifier and the second group identifier, for example, the search space corresponds to group 0 and group 1, or the search space belongs to both group 0 and group 1.

[0056] Optionally, the UE may be configured with a search space switching group indication parameter. If the UE is provided with a search space switching group indication parameter, such as searchSpaceSwitchingGroupList-r16, which indicates one or more service cell groups, for one of the one or more service cell groups, when the UE performs PDCCH monitoring, the switching behavior of the SS groups on all cells in the service cell group is the same; otherwise, if the UE is provided with a search space group ID parameter, then when the UE performs PDCCH monitoring, the SS group switching is only performed for the SS group on the service cell.

[0057] Optionally, the UE may be provided with a timer, and the time unit of the timer value may be a time slot, for example, when the timer is started, each time slot passes, the timer value is reduced by 1. The value of the timer may be configured by a high-level layer, for example, it may be provided by a high-level parameter searchSpaceSwitchingTimer-r16.

[0058] The UE may perform search space SS group switching by using an explicit switching method or an implicit switching method.

[0059] Regarding explicit switching, the terminal device may be configured with a switching indication signaling in downlink control information (DCI) format 2_0 for indicating SS group switching, and the terminal device may also switch the SS group according to the indication of the switching indication signaling detected in DCI format 2_0. Regarding implicit switching, the terminal device may determine whether to switch to, for example, the SS set corresponding to the second group identifier based on whether DCI is detected in, for example, the SS set corresponding to the first group identifier.

[0060] The following is based on Figure 3-6 , the method of explicit switching on a serving cell is further described in detail.

[0061] For a serving cell, if the UE is provided with the location of the search space set switching domain of the serving cell in DCI format 2_0 by switching indication signaling such as the high-level parameter SearchSpaceSwitchTrigger-r16, and the UE detects the DCI format 2_0 in a time slot, then on the serving cell, the switching process of the SS group may include at least one of the following situations:

[0062] 1) The search space set switching domain indicates that PDCCH monitoring is performed according to the search space set corresponding to the first group identifier, refer to Figure 2 If the UE does not perform PDCCH monitoring according to the search space set corresponding to the first group identifier, then starting from the first time slot at least P symbols after the last symbol of the PDCCH carrying the DCI format 2_0, the UE performs PDCCH monitoring according to the search space set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the search space set corresponding to the second group identifier.

[0063] 2) The search space set switching domain indicates that PDCCH monitoring is performed according to the search space set corresponding to the second group identifier, refer to Figure 3If the UE does not perform PDCCH monitoring according to the search space set corresponding to the second group identifier, then starting from the first time slot at least P symbols after the last symbol of the PDCCH carrying the DCI format 2_0, the UE performs PDCCH monitoring according to the search space set corresponding to the second group identifier, and stops performing PDCCH monitoring according to the search space set corresponding to the first group identifier.

[0064] 3) After receiving the DCI format 2_0, the UE sets or resets the timer to the value configured by the higher-layer parameter, such as searchSpaceSwitchingTimer-r16.

[0065] 4)Reference Figure 4 and Figure 5 If the UE performs PDCCH monitoring according to the search space set corresponding to the second group identifier, then starting from the first time slot at least P symbols after the time slot corresponding to when the timer expires, or, starting from the first time slot at least P symbols after the last symbol of the remaining channel occupancy length of the service cell indicated by DCI format 2_0, the UE performs PDCCH monitoring according to the search space set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the search space set corresponding to the second group identifier.

[0066] Optionally, in the above 4), if there is a first time slot after at least P symbols after the time slot corresponding to when the timer expires, such as time slot m, and there is a first time slot after at least P symbols after the last symbol of the remaining channel occupancy length of the service cell indicated by DCI format 2_0, such as time slot n, then the UE performs PDCCH monitoring according to the search space set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the search space set corresponding to the second group identifier. The time slot includes the time slot that starts first between the above-mentioned time slot m and time slot n.

[0067] Optionally, the UE detects the DCI format 2_0, including the UE detecting the DCI format 2_0 according to the search space set corresponding to the first group identifier, or the UE detecting the DCI format 2_0 according to the search space set corresponding to the second group identifier, or the UE detecting the DCI format 2_0 according to the search space set that corresponds to neither the first group identifier nor the second group identifier, or the UE detecting the DCI format 2_0 according to the search space set that corresponds to both the first group identifier and the second group identifier.

[0068] In the FBE scenario, if the UE is provided with search space switching indication signaling by, for example, high-level parameters, how to determine the switching behavior of the terminal on the serving cell and the search space group on the serving cell group needs to be further clarified and optimized.

[0069] The embodiments of the present application will provide solutions for the switching behavior of the search space group of a terminal on a serving cell and the switching behavior of the search space group of a terminal on a serving cell group in an FBE scenario.

[0070] First, the embodiment of the present application provides a physical channel monitoring method, referring to Figure 6 , the method comprising:

[0071] S101, a terminal device is configured with a periodic channel occupancy length on a first serving cell, the first serving cell corresponds to first information, wherein the periodic channel occupancy length includes a maximum channel occupancy length, and the maximum channel occupancy length is less than the periodic channel occupancy length;

[0072] S102, the terminal device performs physical channel monitoring on the first service cell according to second information, wherein the second information includes at least one of the periodic channel occupancy length, the maximum channel occupancy length and the first information.

[0073] Optionally, the physical channel includes a control channel. Specifically, the control channel includes a physical downlink control channel PDCCH.

[0074] Optionally, the physical channel may include a physical channel transmitted between terminal devices, such as a control channel transmitted between terminal devices; or, the physical channel may include a physical channel transmitted between network devices, such as a control channel transmitted between network devices.

[0075] It should be understood that in the embodiments of the present application, the physical channel monitoring is described by taking PDCCH monitoring as an example. If the physical channel to be monitored includes other physical channels, then PDCCH can be replaced with the corresponding physical channel. This application will not go into details.

[0076] An embodiment of the present application considers a terminal device in an FBE scenario (or a semi-static channel access mode). If the terminal device is configured with a periodic channel occupancy length on a first service cell, and the first service cell corresponds to first information, the terminal device may perform PDCCH monitoring on the first service cell based on second information, wherein the second information may include the periodic channel occupancy length, may also include the maximum channel occupancy length included in the periodic channel occupancy length, and may also include the first information corresponding to the first service cell, thereby determining the switching behavior of the search space SS group of the terminal device on the first service cell.

[0077] In an embodiment of the present application, optionally, the first information may be search space switching indication information. For example, the first information may be search space switching indication information of the first service cell, or the first information may be search space switching indication information configured by the network device for the first service cell. Optionally, the periodic channel occupancy length is the length of the fixed frame period FFP. Optionally, the maximum channel occupancy length is the length of the maximum channel occupancy time COT corresponding to the FFP.

[0078] Before describing in detail various implementations of the embodiments of the present application, the channel access mode (or semi-static channel access mode) of the frame-based device FBE in the NR-U system is briefly described. The semi-static channel access mode can be indicated by the network device through the system information block SIB1 or configured through high-level parameters. Figure 7 , the length of the fixed frame period FFP is T x Can be configured by network device, T x The unit is ms, T x The value range may include, for example, 1, 2, 2.5, 4, 5, and 10. In some embodiments, starting from every two consecutive radio frames, within every two consecutive radio frames, according to x·T x Determine the starting position of the FFP, where The maximum COT length within FFP is T y =0.95T x , the idle period length within FFP is at least T z =max(0.05T x ,100us).

[0079] Optionally, if a serving cell is configured as a semi-static channel access mode, the periodic channel occupancy length of the serving cell is T x The maximum channel occupancy length included in the periodic channel occupancy length of the service cell is T y The length of the idle period included in the periodic channel occupancy length of the serving cell is T z Optionally, the terminal device can x Determine T y and / or T z For example, as described above, the terminal device determines the length T of the FFP x After that, the starting position of the FFP, the period of the FFP, the maximum COT length for signal transmission in the FFP, the idle period for channel detection in the FFP and other information can be determined according to the preset rules.

[0080] It should be understood that in the embodiment of the present application, the serving cell may also be referred to as a cell, the search space may also be referred to as a search space set, and the search space group may also be referred to as a search space set group.

[0081] Optionally, in an embodiment of the present application, the terminal device performs PDCCH monitoring on the first service cell, including: the terminal device performs PDCCH monitoring on a downlink activation bandwidth part (Bandwidth part, BWP) of the first service cell.

[0082] Optionally, in an embodiment of the present application, for the first service cell, the search space SS set configured by the terminal device includes a search space group identifier, including: on the BWP of the first service cell, the search space SS set configured by the terminal device includes a search space group identifier. Optionally, the SS sets on different BWPs in the same service cell are configured independently.

[0083] In an embodiment of the present application, if the terminal device is provided with a search space switching group indication parameter such as searchSpaceSwitchingGroupList-r16, which indicates one or more service cell groups, then the terminal device can be considered to be configured to perform PDCCH monitoring on a service cell group basis, and for the first service cell group in the one or more service cell groups, the switching behavior of the SS group of the terminal device on all cells in the first service cell group can be the same. Optionally, the first service cell group includes any one of the one or more service cell groups. Conversely, if the terminal device is not provided with a search space switching group indication parameter, or if the first service cell of the terminal device does not belong to any service cell group, then the terminal device can consider that the first service cell is configured to perform PDCCH monitoring on a service cell basis.

[0084] Optionally, a serving cell may be configured to belong to at most one serving cell group. For example, a cell cannot belong to two or more serving cell groups at the same time. For another example, a cell may be configured to belong to one serving cell group or may not belong to any serving cell group.

[0085] According to an embodiment of the present application, in an FBE scenario, first consider a first cell that does not belong to any service cell group. When the first cell is provided with a search space switching indication signaling (e.g., a high-level parameter SearchSpaceSwitchTrigger-r16), the terminal device can perform PDCCH monitoring according to the indication of the switching indication signaling. The switching indication signaling is the switching indication signaling corresponding to the first cell. When the terminal device performs PDCCH monitoring on the first service cell, the search space group can be switched through at least one of the following multiple embodiments.

[0086] Method 1:

[0087] In an embodiment of the present application, when a terminal device receives, for example, a first DCI format is detected and the first information included in the first DCI format (for example, a handover indication signaling of a first cell) indicates a first group identifier, or in other words, the value of the search space set handover domain of the first serving cell provided by the handover indication signaling is 0, it can be indicated that the first information indicates the first group identifier. Optionally, the first DCI format includes DCI format 2_0.

[0088] In the case that the first information indicates the first group identifier, if the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the first group identifier, then starting from the first time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

[0089] Optionally, the other group identifiers in this case may include a second group identifier.

[0090] Optionally, the first time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

[0091] Method 2:

[0092] In an embodiment of the present application, the terminal device detects a first DCI format and the first information included in the first DCI format, such as the switching indication signaling of the first cell, indicates a second group identifier, or in other words, the value of the search space set switching domain of the first service cell provided by the switching indication signaling is 1, which indicates that the first information indicates the second group identifier.

[0093] In the case that the first information indicates a second group identifier, if the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the second group identifier, then starting from the second time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, and stops performing PDCCH monitoring according to the SS sets corresponding to other SS group identifiers.

[0094] Optionally, the other group identifiers in this case may include the first group identifier.

[0095] Optionally, the second time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

[0096] Method 3:

[0097] In an embodiment of the present application, when the first information indicates the second group identifier, the terminal device sets the first timer to a first timing value.

[0098] Optionally, when a first DCI format is detected and the first information included in the first DCI format indicates a second group identifier, the terminal device sets the first timer to a first timing value in a time slot in which the first DCI format is detected.

[0099] Optionally, the first timing value of the first timer may be configured by a high-level configuration, for example, it may be provided by a high-level parameter searchSpaceSwitchingTimer-r16, and the first timing value may be configured to include N time units such as time slots, where N is a positive integer. Optionally, the first timer may use time units such as time slots, or symbols, or subframes, or sub-time slots (for example, a sub-time slot includes an integer number of symbols less than 14) as timing units. For example, the timing unit of the value of the first timer is a time slot. After the first timer is set to take a value, the value of the first timer is subtracted by 1 for each time slot.

[0100] Optionally, a first timer may be configured for each serving cell, or a first timer may be configured for each terminal device. For example, the first timer may be a timer corresponding to the first serving cell.

[0101] In some embodiments, if the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, then starting from the third time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the SS set corresponding to the second group identifier.

[0102] Optionally, the third time slot includes: the first time slot at least P symbols after the time slot corresponding to when the first timer expires.

[0103] In the above-provided methods 1, 2 and 3, the first time slot, the second time slot, the third time slot and the P symbols may be determined according to a first subcarrier spacing. Optionally, the first subcarrier spacing may be a subcarrier spacing corresponding to the first serving cell, the first subcarrier spacing may also be a preset subcarrier spacing, or the first subcarrier spacing may also be determined according to a subcarrier spacing configuration configured by a network device.

[0104] In some embodiments of the present application, the values ​​of the first subcarrier spacing and the P symbols satisfy at least one of the following relationships:

[0105] a) if the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, then P is greater than or equal to 10;

[0106] b) if the first subcarrier spacing is 30 kHz or the configuration of the first subcarrier spacing is μ=1, then P is greater than or equal to 12;

[0107] c) if the first subcarrier spacing is 60 kHz or the configuration of the first subcarrier spacing is μ=2, then P is greater than or equal to 22;

[0108] d) If the first subcarrier spacing is 120 kHz or the configuration of the first subcarrier spacing is μ=3, P is greater than or equal to 25.

[0109] Optionally, at least one of the above situations corresponds to UE capability 1.

[0110] In some embodiments of the present application, the values ​​of the first subcarrier spacing and the P symbols satisfy at least one of the following relationships:

[0111] a) if the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, P is greater than or equal to 5;

[0112] b) if the first subcarrier spacing is 30 kHz or the first subcarrier spacing is configured as μ=1, P is greater than or equal to 5.5;

[0113] c) If the first subcarrier spacing is 60 kHz or the configuration of the first subcarrier spacing is μ=2, P is greater than or equal to 11.

[0114] Optionally, at least one of the above situations corresponds to UE capability 2.

[0115] Optionally, the above method 1, method 2 and method 3 are applied within the COT in the FFP, or the above method 1, method 2 and method 3 are applied within the maximum COT in the FFP.

[0116] The above methods 1, 2 and 3 respectively describe the process of switching the search space group when the terminal device performs PDCCH monitoring on the first service cell according to the first information on the first service cell when the first information indicates different group identifiers. In addition, the terminal device can also perform PDCCH monitoring on the first service cell according to the periodic channel occupancy length or the maximum channel occupancy length, and switch the search space group, which are described in detail below.

[0117] Method 4:

[0118] In an embodiment of the present application, the terminal device starts from the starting symbol in the first periodic channel occupancy length and performs PDCCH monitoring according to the SS set corresponding to the default group identifier. In other words, the terminal device starts from the starting symbol of the first FFP and performs PDCCH monitoring according to the SS set corresponding to the default group identifier.

[0119] Among them, optionally, the default group identifier can be the first group identifier (such as group 0) or the second group identifier (such as group 1); the default group identifier can be preset, or can be configured by the network device, or can be agreed upon.

[0120] In an embodiment of the present application, the first periodic channel occupancy length may correspond to a fixed frame period FFP within any frame structure, so starting from the start position of each FFP, the terminal device always performs PDCCH monitoring according to the search space set corresponding to the default SS group (e.g., group 0). For example, if the terminal device performs PDCCH monitoring according to the search space set corresponding to group 1 within an FFP, then at the start position of the next FFP, the terminal device needs to switch to performing PDCCH monitoring according to the search space set corresponding to the default group 0.

[0121] Method 5:

[0122] In an embodiment of the present application, the terminal device monitors the physical downlink control channel PDCCH of the first service cell within the channel occupancy in the first periodic channel occupancy length. In other words, the terminal device monitors the physical downlink control channel PDCCH of the first service cell within the COT in the first FFP.

[0123] In an embodiment of the present application, from the last symbol of channel occupancy in the first cycle channel occupancy length, that is, from the end position of the last symbol, to the start symbol in the second cycle channel occupancy length, the terminal device does not perform PDCCH monitoring, wherein the first cycle channel occupancy length and the second cycle channel occupancy length are two consecutive cycle channel occupancy lengths, and the first cycle channel occupancy length is located before the second cycle channel occupancy length in the time domain. In other words, from the last symbol of channel occupancy in the first FFP, that is, from the end position of the last symbol, to the start symbol in the second FFP, the terminal device does not perform PDCCH monitoring, wherein the first FFP and the second FFP are two consecutive FFPs, and the first FFP is located before the second FFP in the time domain.

[0124] Optionally, the channel occupancy in the first periodic channel occupancy length is determined according to the maximum channel occupancy length.

[0125] Optionally, the channel occupancy in the first periodic channel occupancy length is determined according to a remaining channel occupancy length indicated in the first DCI format.

[0126] Among them, optionally, when the first DCI format is received and the remaining channel occupancy length is indicated in the first DCI format, the channel occupancy in the first period channel occupancy length is determined according to the remaining channel occupancy length indicated in the first DCI format; otherwise, the channel occupancy in the first period channel occupancy length is determined according to the maximum channel occupancy length.

[0127] Among them, optionally, if the first DCI format includes time slot format indication information SFI or channel occupancy time length indication information, the first DCI format indicates the remaining channel occupancy length; otherwise, the first DCI format does not indicate the remaining channel occupancy length.

[0128] In some embodiments of the present application, if the first service cell includes a first SS set, wherein the first SS set includes at least one SS set, and the first SS set does not belong to the SS set corresponding to the first group identifier and does not belong to the SS set corresponding to the second group identifier, then the terminal device performs PDCCH monitoring according to the first SS set, or the terminal device performs PDCCH monitoring according to the first SS set within the channel occupancy in the first periodic channel occupancy length.

[0129] In some embodiments of the present application, if the first service cell includes a second SS set, wherein the second SS set includes at least one SS set, and the second SS set belongs to both the SS set corresponding to the first group identifier and the SS set corresponding to the second group identifier, then the terminal device performs PDCCH monitoring according to the second SS set, or the terminal device performs PDCCH monitoring according to the second SS set within the channel occupancy in the first periodic channel occupancy length.

[0130] In some embodiments of the present application, if the first service cell includes the SS set corresponding to the first group identifier and does not include the SS set corresponding to the second group identifier, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, or the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier within the channel occupancy in the first period channel occupancy length.

[0131] As an example, if the first cell is configured as a semi-static channel access mode, the first cell does not belong to any serving cell group, and the first cell is provided with a switching indication signaling such as a high-level parameter SearchSpaceSwitchTrigger-r16, the UE can perform PDCCH monitoring according to the indication of the switching indication signaling. The switching indication signaling is the switching indication signaling corresponding to the first cell. When the UE performs PDCCH monitoring on the first cell, the behavior includes at least one of the following:

[0132] For at least one search space on the first cell that does not belong to SS group 0 or SS group 1, the UE needs to perform PDCCH monitoring according to the at least one search space set during the channel occupancy time of the current FFP;

[0133] Starting from the start position of the FFP, the UE performs PDCCH monitoring according to the search space set in the default SS group, such as SS group 0;

[0134] If the UE receives the switching indication signaling and the value of the search space set switching domain of the serving cell is 0, and if the UE does not perform PDCCH monitoring according to the search space set in SS group 0, then starting from the first time slot at least P symbols after the last symbol of the PDCCH carrying the DCI format 2_0, the UE performs PDCCH monitoring according to the search space set in SS group 0 and stops performing PDCCH monitoring according to the search space set in SS group 1;

[0135] If the UE receives the value of the search space set switching domain of the serving cell provided by the switching indication signaling as 1, and if the UE does not perform PDCCH monitoring according to the search space set in SS group 1, then starting from the first time slot at least P symbols after the last symbol of the PDCCH carrying the DCI format 2_0, the UE performs PDCCH monitoring according to the search space set in SS group 1 and stops performing PDCCH monitoring according to the search space set in SS group 0;

[0136] If the value of the search space set switching domain of the serving cell provided by the handover indication signaling received by the UE is 1, after receiving the DCI format 2_0, the UE sets or resets the first timer to a first timing value, wherein the first timing value is a value configured by a high-level parameter such as searchSpaceSwitchingTimer-r16;

[0137] If the UE performs PDCCH monitoring according to the search space set in SS group 1, then starting from the first time slot at least P symbols after the time slot in which the first timer expires, the UE performs PDCCH monitoring according to the search space set in SS group 0 and stops performing PDCCH monitoring according to the search space set in SS group 1;

[0138] · From the last symbol of the channel occupation of the current FFP to the start symbol of the next FFP, the UE stops PDCCH monitoring, wherein the last symbol of the channel occupation of the current FFP is determined according to the remaining channel occupation length indicated in the DCI format 2_0 and / or the maximum COT within the FFP. For example, if the DCI format 2_0 includes an indication of the remaining channel occupation length, then the last symbol of the channel occupation of the current FFP includes the last symbol of the remaining channel occupation length; or, if the DCI format 2_0 does not include an indication of the remaining channel occupation length, then the last symbol of the channel occupation of the current FFP includes the last symbol corresponding to the maximum COT within the FFP.

[0139] At least one of the above embodiments of the present application can be used to clarify the switching behavior of the search space group of a terminal device on a serving cell in an FBE scenario. The following describes the search space group switching process of the terminal device on each serving cell in at least one serving cell group through multiple embodiments.

[0140] refer to Figure 8 , an embodiment of the present application provides a physical channel monitoring method, the method comprising:

[0141] S201, the terminal device is configured with at least one serving cell group, and a first serving cell group in the at least one serving cell group corresponds to first information;

[0142] S202, the terminal device is configured with a periodic channel occupancy length on the first serving cell, wherein the periodic channel occupancy length includes a maximum channel occupancy length, and the maximum channel occupancy length is less than the periodic channel occupancy length;

[0143] S203, the terminal device performs physical channel monitoring on the first service cell according to the second information, and the first service cell is a service cell in the first service cell group; wherein the second information includes the periodic channel occupancy length, the maximum channel occupancy length and at least one of the first information.

[0144] Optionally, the physical channel includes a control channel. Specifically, the control channel includes a physical downlink control channel PDCCH.

[0145] Optionally, the physical channel may include a physical channel transmitted between terminal devices, such as a control channel transmitted between terminal devices; or, the physical channel may include a physical channel transmitted between network devices, such as a control channel transmitted between network devices.

[0146] The embodiment of the present application considers that in the FBE scenario (or, semi-static channel access mode), if the terminal device is configured with at least one service cell group, the first service cell group in the at least one service cell group corresponds to the first information, and the terminal device is configured with a periodic channel occupancy length on the first service cell in the first service cell group, then the terminal device can perform PDCCH monitoring on the first service cell according to the second information, wherein the second information may include the periodic channel occupancy length, and may also include the maximum channel occupancy length included in the periodic channel occupancy length, and may also include the first information corresponding to the first service cell group. Thus, the switching behavior of the search space SS group of the terminal device on each service cell in the first service cell group can be determined.

[0147] For each service cell in a service cell group, the parameters of FBE, such as the periodic channel occupancy length, are independently configured for each cell. In an embodiment of the present application, optionally, each service cell in the first service cell group is configured with the same periodic channel occupancy length. In an embodiment of the present application, the first service cell group corresponds to the first information, and optionally, the first service cell in the first service cell group corresponds to the first information.

[0148] Optionally, the first information may be search space switching indication information. For example, the first information may be search space switching indication information of the first serving cell group, or the first information may be search space switching indication information configured by the network device for the first serving cell group.

[0149] When the terminal device of the embodiment of the present application performs PDCCH monitoring on the first service cell in the first service cell group, the search space group can be switched through at least one of the following embodiments.

[0150] Method 1:

[0151] In an embodiment of the present application, when a terminal device receives a first DCI format and the first information included in the first DCI format indicates a first group identifier, or receives a first DCI format on at least one service cell in the first service cell group and the first information included in the first DCI format (e.g., switching indication signaling of the first service cell group) indicates a first group identifier, if the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the first group identifier, then starting from the first time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the SS sets corresponding to other group identifiers. Optionally, the first DCI format includes DCI format 2_0.

[0152] Optionally, the other group identifiers in this case may include a second group identifier.

[0153] Optionally, the first time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

[0154] Method 2:

[0155] In an embodiment of the present application, when a terminal device receives a first DCI format and the first information included in the first DCI format indicates a second group identifier, or when a terminal device receives a first DCI format on at least one service cell in the first service cell group and the first information included in the first DCI format indicates a second group identifier, if the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the second group identifier, then starting from the second time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, and stops performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

[0156] Optionally, the other group identifiers in this case may include the first group identifier.

[0157] Optionally, the second time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

[0158] Method 3:

[0159] In an embodiment of the present application, when a terminal device receives a first DCI format and the first information included in the first DCI format indicates a second group identifier, or when a first DCI format is received on at least one service cell in the first service cell group and the first information included in the first DCI format indicates a second group identifier, the terminal device sets a first timer to a first timing value.

[0160] Optionally, when a first DCI format is detected and the first information included in the first DCI format indicates a second group identifier, the terminal device sets the first timer to a first timing value in a time slot in which the first DCI format is detected.

[0161] Optionally, the first timing value of the first timer may be configured by a high-level configuration, for example, it may be provided by a high-level parameter searchSpaceSwitchingTimer-r16, and the first timing value may be configured to include N time units such as time slots, where N is a positive integer. Optionally, the first timer may use time units such as time slots, or symbols, or subframes, or sub-time slots (for example, a sub-time slot includes an integer number of symbols less than 14) as timing units. For example, the timing unit of the value of the first timer is a time slot. After the first timer is set to take a value, the value of the first timer is subtracted by 1 for each time slot.

[0162] Optionally, a first timer may be configured for each service cell, a first timer may be configured for each service cell group, a first timer may be configured for multiple service cell groups, or a first timer may be configured for each terminal device. For example, the first timer may be a timer corresponding to the first service cell group.

[0163] In some embodiments, if the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, then starting from the third time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the SS set corresponding to the second SS group identifier.

[0164] Optionally, the third time slot includes: the first time slot at least P symbols after the time slot corresponding to when the first timer expires.

[0165] In the above-provided methods 1, 2 and 3, the first time slot, the second time slot, the third time slot and the P symbols can be determined according to the first subcarrier spacing.

[0166] Optionally, the first subcarrier spacing may be the subcarrier spacing corresponding to the first service cell in the first service cell group.

[0167] Optionally, the first subcarrier spacing is preset or configured by the network device. For example, the network device configures the first subcarrier spacing to be 15 kHz, or the first subcarrier spacing configuration is μ=0.

[0168] Optionally, the first subcarrier spacing is the minimum subcarrier spacing among the subcarrier spacings corresponding to the service cells included in the first service cell group. For example, if the minimum subcarrier spacing among the multiple subcarrier spacings corresponding to the multiple activated BWPs on the multiple cells included in the first service cell group is 30kHz, then the first subcarrier spacing is 30kHz. Optionally, if a BWP switching occurs in a cell included in the first service cell group, then the subcarrier spacing corresponding to the cell in the first service cell group includes the minimum subcarrier spacing before and after the BWP switching, or in other words, the first subcarrier spacing is determined based on the minimum subcarrier spacing before and after the BWP switching.

[0169] Optionally, the first subcarrier spacing is the maximum subcarrier spacing among the subcarrier spacings corresponding to the service cells included in the first service cell group. Optionally, if a BWP switching occurs in the cells included in the first service cell group, the first subcarrier spacing is determined according to the maximum subcarrier spacing before and after the BWP switching.

[0170] Optionally, the first subcarrier spacing is a minimum subcarrier spacing supported on the unlicensed carrier.

[0171] Optionally, the first subcarrier spacing is a maximum subcarrier spacing supported on the unlicensed carrier.

[0172] In some embodiments of the present application, the values ​​of the first subcarrier spacing and the P symbols satisfy at least one of the following relationships:

[0173] a) if the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, then P is greater than or equal to 10;

[0174] b) if the first subcarrier spacing is 30 kHz or the configuration of the first subcarrier spacing is μ=1, then P is greater than or equal to 12;

[0175] c) if the first subcarrier spacing is 60 kHz or the configuration of the first subcarrier spacing is μ=2, then P is greater than or equal to 22;

[0176] d) If the first subcarrier spacing is 120 kHz or the configuration of the first subcarrier spacing is μ=3, P is greater than or equal to 25.

[0177] Optionally, at least one of the above situations corresponds to UE capability 1.

[0178] In some embodiments of the present application, the values ​​of the first subcarrier spacing and the P symbols satisfy at least one of the following relationships:

[0179] a) if the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, P is greater than or equal to 5;

[0180] b) if the first subcarrier spacing is 30 kHz or the first subcarrier spacing is configured as μ=1, P is greater than or equal to 5.5;

[0181] c) If the first subcarrier spacing is 60 kHz or the configuration of the first subcarrier spacing is μ=2, P is greater than or equal to 11.

[0182] Optionally, at least one of the above situations corresponds to UE capability 2.

[0183] Optionally, the above method 1, method 2 and method 3 are applied within the COT in the FFP, or the above method 1, method 2 and method 3 are applied within the maximum COT in the FFP.

[0184] The above method 1, method 2 and method 3 respectively describe the process of switching the search space group when the terminal device performs PDCCH monitoring on at least one service cell in the first service cell group according to the first information when the first information indicates different group identifiers. In addition, the terminal device can also perform PDCCH monitoring on at least one service cell in the first service cell group according to the periodic channel occupancy length or the maximum channel occupancy length, and switch the search space group, which are described in detail below.

[0185] Method 4:

[0186] In an embodiment of the present application, the terminal device starts from the starting symbol in the first period channel occupancy length and performs PDCCH monitoring according to the SS set corresponding to the default SS group identifier. In other words, the terminal device starts from the starting symbol of the first FFP and performs PDCCH monitoring according to the SS set corresponding to the default group identifier.

[0187] Among them, optionally, the default group identifier can be the first group identifier (such as group 0) or the second group identifier (such as group 1); the default group identifier can be preset, or can be configured by the network device, or can be agreed upon.

[0188] In an embodiment of the present application, the first periodic channel occupancy length may correspond to a fixed frame period FFP within any frame structure, so starting from the start position of each FFP, the terminal device always performs PDCCH monitoring according to the search space set corresponding to the default SS group (e.g., group 0). For example, if the terminal device performs PDCCH monitoring according to the search space set corresponding to group 1 within an FFP, then at the start position of the next FFP, the terminal device needs to switch to performing PDCCH monitoring according to the search space set corresponding to the default group 0.

[0189] Method 5:

[0190] The terminal device performs PDCCH monitoring on the first serving cell within the channel occupancy in the first periodic channel occupancy length. In other words, the terminal device performs PDCCH monitoring on the first serving cell within the COT in the first FFP.

[0191] In an embodiment of the present application, from the last symbol of channel occupancy in the first cycle channel occupancy length, that is, from the end position of the last symbol, to the start symbol in the second cycle channel occupancy length, the terminal device does not perform PDCCH monitoring, wherein the first cycle channel occupancy length and the second cycle channel occupancy length are two consecutive cycle channel occupancy lengths, and the first cycle channel occupancy length is located before the second cycle channel occupancy length in the time domain. In other words, from the last symbol of channel occupancy in the first FFP, that is, from the end position of the last symbol, to the start symbol in the second FFP, the terminal device does not perform PDCCH monitoring, wherein the first FFP and the second FFP are two consecutive FFPs, and the first FFP is located before the second FFP in the time domain.

[0192] Optionally, the channel occupancy in the first periodic channel occupancy length is determined according to the maximum channel occupancy length.

[0193] Optionally, the channel occupancy in the first periodic channel occupancy length is determined according to a remaining channel occupancy length indicated in the first DCI format.

[0194] Among them, optionally, when the first DCI format is received and the first DCI format indicates the remaining channel occupancy length, or when the first DCI format is received on at least one service cell in the first service cell group and the first DCI format indicates the remaining channel occupancy length, the channel occupancy in the first period channel occupancy length is determined according to the remaining channel occupancy length indicated in the first DCI format; otherwise, the channel occupancy in the first period channel occupancy length is determined according to the maximum channel occupancy length.

[0195] Among them, optionally, if the first DCI format includes time slot format indication information SFI or channel occupancy time length indication information, the first DCI format indicates the remaining channel occupancy length; otherwise, the first DCI format does not indicate the remaining channel occupancy length.

[0196] In some embodiments of the present application, if the terminal device is configured to monitor a first DCI format corresponding to at least one cell in the first service cell group, and the terminal device receives at least one remaining channel occupancy length information of at least one cell indicated by the first DCI format, then the terminal device determines the last symbol of channel occupancy in the first periodic channel occupancy length based on the last symbol of the first remaining channel occupancy length in the at least one remaining channel occupancy length.

[0197] Optionally, the first remaining channel occupied length is the remaining channel occupied length with the latest ending position or the remaining channel occupied length with the earliest ending position among the at least one remaining channel occupied length.

[0198] In some embodiments of the present application, if the first service cell includes a first SS set, wherein the first SS set includes at least one SS set, and the first SS set does not belong to the SS set corresponding to the first group identifier and does not belong to the SS set corresponding to the second group identifier, then the terminal device performs PDCCH monitoring according to the first SS set, or the terminal device performs PDCCH monitoring according to the first SS set within the channel occupancy in the first periodic channel occupancy length.

[0199] In some embodiments of the present application, if the first service cell includes a second SS set, wherein the second SS set includes at least one SS set, and the second SS set belongs to both the SS set corresponding to the first group identifier and the SS set corresponding to the second group identifier, then the terminal device performs PDCCH monitoring according to the second SS set, or the terminal device performs PDCCH monitoring according to the second SS set within the channel occupancy in the first periodic channel occupancy length.

[0200] In some embodiments of the present application, if the first service cell includes the SS set corresponding to the first group identifier and does not include the SS set corresponding to the second group identifier, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, or the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier within the channel occupancy in the first period channel occupancy length.

[0201] By using at least one of the above embodiments of the present application, it is possible to clarify the switching behavior of the search space group of the terminal device on at least one service cell in the service cell group in the FBE scenario.

[0202] The above describes the specific configuration and implementation of the embodiments of the present application from different perspectives through multiple embodiments. Corresponding to the processing method of at least one of the above embodiments, the embodiments of the present application also provide a terminal device 100, referring to Fig. 9 , which includes:

[0203] A physical channel monitoring module 110, configured to perform physical downlink control channel PDCCH monitoring on the first serving cell according to second information when a terminal device is configured with a periodic channel occupancy length on the first serving cell and the first serving cell corresponds to first information;

[0204] Among them, the periodic channel occupancy length includes a maximum channel occupancy length, and the maximum channel occupancy length is less than the periodic channel occupancy length; the second information includes at least one of the periodic channel occupancy length, the maximum channel occupancy length and the first information.

[0205] Optionally, in an embodiment of the present application, the physical channel monitoring module includes a receiving module and / or a processing module, wherein the receiving module is used to receive a candidate PDCCH, and the processing module is used to detect whether the candidate PDCCH includes a DCI format.

[0206] Optionally, in an embodiment of the present application, the terminal device performs PDCCH monitoring according to the SS set, including: the terminal device performs PDCCH blind detection according to the candidate PDCCH in the SS set, and determines whether the candidate PDCCH includes DCI information according to the blind detection result. If the terminal device detects a DCI format on a candidate PDCCH during the PDCCH monitoring process, the terminal device can consider that the candidate PDCCH includes DCI information; if the terminal device does not detect a DCI format on a candidate PDCCH during the PDCCH monitoring process, the terminal device can consider that the candidate PDCCH does not include DCI information.

[0207] Optionally, in an embodiment of the present application, the physical channel monitoring module includes 110 including: a first monitoring submodule, used to, when a first DCI format is received and the first information included in the first DCI format indicates a first group identifier, and the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the first group identifier, start from the first time slot on the first service cell, perform PDCCH monitoring according to the SS set corresponding to the first group identifier, and stop performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

[0208] Optionally, in an embodiment of the present application, the physical channel monitoring module includes 110 including: a second monitoring submodule, which is used to, when a first DCI format is received and the first information included in the first DCI format indicates a second group identifier, and the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the second group identifier, start from the second time slot on the first service cell, perform PDCCH monitoring according to the SS set corresponding to the second group identifier, and stop performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

[0209] Optionally, in an embodiment of the present application, the physical channel monitoring module includes 110 including: a third monitoring submodule, used to, when the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, start from the third time slot on the first service cell, perform PDCCH monitoring according to the SS set corresponding to the first group identifier, and stop performing PDCCH monitoring according to the SS set corresponding to the second group identifier.

[0210] Optionally, in an embodiment of the present application, the physical channel monitoring module includes 110 including: a fourth monitoring submodule, used to perform PDCCH monitoring according to the first SS set when the first service cell includes a first SS set and the first SS set does not belong to the SS set corresponding to the first group identifier nor the SS set corresponding to the second group identifier.

[0211] Optionally, in an embodiment of the present application, the physical channel monitoring module 110 includes: a fifth monitoring submodule, used to perform PDCCH monitoring starting from a start symbol in the first cycle channel occupancy length according to a SS set corresponding to a default group identifier.

[0212] Optionally, in an embodiment of the present application, the physical channel monitoring module 110 includes: a sixth monitoring submodule, used to monitor the physical downlink control channel PDCCH of the first service cell within the channel occupancy in the first period channel occupancy length.

[0213] Optionally, in an embodiment of the present application, the physical channel monitoring module includes 110 including: a seventh monitoring sub-module, used to not perform PDCCH monitoring from the last symbol of channel occupancy in the first cycle channel occupancy length to the starting symbol in the second cycle channel occupancy length, wherein the first cycle channel occupancy length and the second cycle channel occupancy length are two consecutive cycle channel occupancy lengths, and the first cycle channel occupancy length is located before the second cycle channel occupancy length in the time domain.

[0214] Corresponding to the processing method of at least one of the above embodiments, the embodiment of the present application further provides a terminal device 200, referring to Fig.10 , which includes:

[0215] A physical channel monitoring module 210 is configured to perform physical downlink control channel PDCCH monitoring on the first service cell according to second information when the terminal device is configured with at least one service cell group and a first service cell group in the at least one service cell group corresponds to first information, and the terminal device is configured with a periodic channel occupancy length on the first service cell in the first service cell group;

[0216] The second information includes at least one of the periodic channel occupancy length, the maximum channel occupancy length and the first information.

[0217] The terminal device 100 and the terminal device 200 of the embodiments of the present application are capable of implementing the corresponding functions described in the aforementioned method embodiments. The functions, implementation methods and beneficial effects corresponding to each module (sub-module, unit or component, etc.) in the terminal device 100 and the terminal device 200 can be found in the corresponding description in the aforementioned method embodiments and will not be repeated here.

[0218] It should be noted that the functions described in the various modules (sub-modules, units or components, etc.) in the terminal device 100 and the terminal device 200 of the application embodiment can be implemented by different modules (sub-modules, units or components, etc.) or by the same module (sub-modules, units or components, etc.). For example, the first monitoring sub-module and the second monitoring sub-module can be different modules or the same module, and both can implement the corresponding functions of the terminal device of the embodiment of the application.

[0219] Fig.11 It is a schematic structural diagram of a communication device 600 according to an embodiment of the present application, wherein the communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0220] Optionally, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0221] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0222] Optionally, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0223] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of the antennas may be one or more.

[0224] Optionally, the communication device 600 may be a network device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0225] Optionally, the communication device 600 may be a terminal device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0226] Fig.12 It is a schematic structural diagram of a chip 700 according to an embodiment of the present application, wherein the chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0227] Optionally, the chip 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0228] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0229] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0230] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0231] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0232] Optionally, the chip can be applied to the present application as Fig. 9 or Fig.10 The terminal device in the embodiment, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, for the sake of brevity, will not be repeated here.

[0233] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0234] The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0235] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM).

[0236] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0237] Fig.13 It is a schematic block diagram of a communication system 800 according to an embodiment of the present application, where the communication system 800 includes a terminal device 810 and a network device 820.

[0238] The terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the methods of various embodiments of the present application, and the network device 820 can be used to implement the corresponding functions implemented by the network device in the methods of various embodiments of the present application. For the sake of brevity, no further description is given here.

[0239] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0240] It should be understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. A person skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0241] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A physical channel monitoring method, applied to a terminal device, the method comprising: The terminal device is configured with at least one serving cell group, and a first serving cell group in the at least one serving cell group corresponds to the first information; The terminal device is configured with a periodic channel occupancy length on the first service cell, wherein the periodic channel occupancy length includes a maximum channel occupancy length, and the maximum channel occupancy length is less than the periodic channel occupancy length; The terminal device monitors the physical downlink control channel PDCCH of the first service cell according to the second information, and the first service cell is a service cell in the first service cell group; wherein the second information includes the periodic channel occupancy length, the maximum channel occupancy length and at least one of the first information.

2. The method according to claim 1, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: When a first DCI format is received and the first information included in the first DCI format indicates a first group identifier, if the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the first group identifier, then starting from the first time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

3. The method according to claim 2, wherein: The first time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

4. The method according to any one of claims 1 to 3, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: When a first DCI format is received and the first information included in the first DCI format indicates a second group identifier, if the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the second group identifier, then starting from the second time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, and stops performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

5. The method according to claim 4, wherein: The second time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

6. The method according to any one of claims 1 to 5, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: When a first DCI format is received and the first information included in the first DCI format indicates a second group identifier, the terminal device sets a first timer to a first timing value.

7. The method according to claim 6, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: If the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, then starting from the third time slot on the first service cell, the terminal device performs PDCCH monitoring according to the SS set corresponding to the first group identifier, and stops performing PDCCH monitoring according to the SS set corresponding to the second SS group identifier.

8. The method according to claim 7, wherein: The third time slot includes: the first time slot at least P symbols after the time slot corresponding to when the first timer expires.

9. The method according to any one of claims 1 to 8, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: If the first serving cell includes a first SS set, wherein the first SS set does not belong to the SS set corresponding to the first group identifier and does not belong to the SS set corresponding to the second group identifier, the terminal device performs PDCCH monitoring according to the first SS set.

10. The method according to any one of claims 1 to 9, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: The terminal device starts from the starting symbol in the first cycle channel occupancy length and performs PDCCH monitoring according to the SS set corresponding to the default SS group identifier.

11. The method according to claim 10, wherein: The default group identifier is the first group identifier or the second group identifier; and / or, The default group identifier is preset or configured by the network device.

12. The method according to any one of claims 1 to 11, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: The terminal device performs PDCCH monitoring on the first service cell within the channel occupancy in the first period channel occupancy length.

13. The method according to any one of claims 1 to 12, wherein: The terminal device performs PDCCH monitoring on the first serving cell according to the second information, including: From the last symbol of channel occupancy in the first cycle channel occupancy length to the starting symbol in the second cycle channel occupancy length, the terminal device does not perform PDCCH monitoring, wherein the first cycle channel occupancy length and the second cycle channel occupancy length are two consecutive cycle channel occupancy lengths, and the first cycle channel occupancy length is located before the second cycle channel occupancy length in the time domain.

14. The method according to claim 12 or 13, wherein: The channel occupancy in the first period channel occupancy length is determined according to the maximum channel occupancy length; or, The channel occupancy in the first period channel occupancy length is determined according to the remaining channel occupancy length indicated in the first DCI format.

15. The method according to claim 14, wherein: When the first DCI format is received and the remaining channel occupancy length is indicated in the first DCI format, the channel occupancy in the first period channel occupancy length is determined according to the remaining channel occupancy length indicated in the first DCI format; otherwise, the channel occupancy in the first period channel occupancy length is determined according to the maximum channel occupancy length.

16. The method according to claim 14 or 15, wherein: If the first DCI format includes time slot format indication information SFI or channel occupation time length indication information, the first DCI format indicates the remaining channel occupation length; otherwise, the first DCI format does not indicate the remaining channel occupation length.

17. The method according to any one of claims 14 to 16, wherein: If the terminal device is configured to monitor the first DCI format corresponding to at least one cell in the first service cell group, and the terminal device receives at least one remaining channel occupancy length information of at least one cell indicated by the first DCI format, the terminal device determines the last symbol of channel occupancy in the first periodic channel occupancy length based on the last symbol of the first remaining channel occupancy length in the at least one remaining channel occupancy length.

18. The method according to claim 17, wherein: The first remaining channel occupied length is the remaining channel occupied length with the latest ending position or the remaining channel occupied length with the earliest ending position among the at least one remaining channel occupied length.

19. The method according to claim 13, 15 or 18, wherein: The P symbols are determined according to the first subcarrier spacing.

20. The method according to claim 19, wherein: The first subcarrier spacing is the subcarrier spacing corresponding to the first serving cell; or, The first subcarrier spacing is preset; or, The first subcarrier spacing is configured by a network device; or, The first subcarrier spacing is the minimum subcarrier spacing among the subcarrier spacings corresponding to the serving cells included in the first serving cell group; or, The first subcarrier spacing is the maximum subcarrier spacing among the subcarrier spacings corresponding to the service cells included in the first service cell group.

21. The method according to claim 19 or 20, wherein: If the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, P is greater than or equal to 10; or, If the first subcarrier spacing is 30 kHz or the first subcarrier spacing is configured as μ=1, P is greater than or equal to 12; or, If the first subcarrier spacing is 60 kHz or the first subcarrier spacing is configured as μ=2, P is greater than or equal to 22; or, If the first subcarrier spacing is 120 kHz or the first subcarrier spacing is configured as μ=3, P is greater than or equal to 25.

22. The method according to claim 19 or 20, wherein: If the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, P is greater than or equal to 5; or, If the first subcarrier spacing is 30 kHz or the first subcarrier spacing is configured as μ=1, P is greater than or equal to 5.5; or, If the first subcarrier spacing is 60 kHz or the first subcarrier spacing is configured as μ=2, P is greater than or equal to 11.

23. A terminal device, comprising: A physical channel monitoring module, configured to, when a terminal device is configured with at least one service cell group and a first service cell group in the at least one service cell group corresponds to first information, and the terminal device is configured with a periodic channel occupancy length on a first service cell in the first service cell group, perform physical downlink control channel PDCCH monitoring on the first service cell according to second information; The second information includes at least one of the periodic channel occupancy length, the maximum channel occupancy length and the first information.

24. The terminal device according to claim 23, wherein: The physical channel monitoring module includes: The first monitoring submodule is used to, when a first DCI format is received and the first information included in the first DCI format indicates a first group identifier, and the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the first group identifier, start from the first time slot on the first service cell, perform PDCCH monitoring according to the SS set corresponding to the first group identifier, and stop performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

25. The terminal device according to claim 24, wherein: The first time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

26. The terminal device according to any one of claims 23 to 25, wherein the physical channel monitoring module comprises: The second monitoring submodule is used to, when a first DCI format is received and the first information included in the first DCI format indicates a second group identifier, and the terminal device does not perform PDCCH monitoring according to the SS set corresponding to the second group identifier, start from the second time slot on the first service cell, perform PDCCH monitoring according to the SS set corresponding to the second group identifier, and stop performing PDCCH monitoring according to the SS sets corresponding to other group identifiers.

27. The terminal device according to claim 26, wherein: The second time slot includes: the first time slot after at least P symbols after the last symbol of the PDCCH carrying the first DCI format.

28. The terminal device according to any one of claims 23 to 27, wherein the physical channel monitoring module comprises: The timer setting submodule is used to set the first timer to a first timing value when a first DCI format is received and the first information included in the first DCI format indicates a second group identifier.

29. The terminal device according to claim 28, wherein: The physical channel monitoring module includes: The third monitoring submodule is used to, when the terminal device performs PDCCH monitoring according to the SS set corresponding to the second group identifier, start from the third time slot on the first service cell, perform PDCCH monitoring according to the SS set corresponding to the first group identifier, and stop PDCCH monitoring according to the SS set corresponding to the second SS group identifier.

30. The terminal device according to claim 29, wherein: The third time slot includes: the first time slot at least P symbols after the time slot corresponding to when the first timer expires.

31. The terminal device according to any one of claims 23 to 30, wherein: The physical channel monitoring module includes: The fourth monitoring submodule is used to perform PDCCH monitoring according to the first SS set when the first service cell includes a first SS set and the first SS set does not belong to the SS set corresponding to the first group identifier nor the SS set corresponding to the second group identifier.

32. The terminal device according to any one of claims 23 to 31, wherein the physical channel monitoring module comprises: The fifth monitoring submodule is used to perform PDCCH monitoring starting from the start symbol in the first cycle channel occupancy length according to the SS set corresponding to the default SS group identifier.

33. The terminal device according to claim 32, wherein: The default group identifier is the first group identifier or the second group identifier; and / or, The default group identifier is preset or configured by the network device.

34. The terminal device according to any one of claims 23 to 33, wherein the physical channel monitoring module comprises: The sixth monitoring submodule is used to perform PDCCH monitoring on the first serving cell within the channel occupancy in the first period channel occupancy length.

35. The terminal device according to any one of claims 23 to 34, wherein the physical channel monitoring module comprises: The seventh monitoring submodule is used to not perform PDCCH monitoring from the last symbol of channel occupancy in the first cycle channel occupancy length to the starting symbol in the second cycle channel occupancy length, wherein the first cycle channel occupancy length and the second cycle channel occupancy length are two consecutive cycle channel occupancy lengths, and the first cycle channel occupancy length is located before the second cycle channel occupancy length in the time domain.

36. The terminal device according to claim 34 or 35, wherein: The channel occupancy in the first period channel occupancy length is determined according to the maximum channel occupancy length; or, The channel occupancy in the first period channel occupancy length is determined according to the remaining channel occupancy length indicated in the first DCI format.

37. The terminal device according to claim 36, wherein: When the physical channel monitoring module receives the first DCI format and the first DCI format indicates the remaining channel occupancy length, the channel occupancy in the first periodic channel occupancy length is determined according to the remaining channel occupancy length indicated in the first DCI format; otherwise, the channel occupancy in the first periodic channel occupancy length is determined according to the maximum channel occupancy length.

38. The terminal device according to claim 36 or 37, wherein: If the first DCI format includes time slot format indication information SFI or channel occupation time length indication information, the first DCI format indicates the remaining channel occupation length; otherwise, the first DCI format does not indicate the remaining channel occupation length.

39. The terminal device according to any one of claims 36 to 38, wherein: A channel occupancy determination module is used to determine the last symbol of channel occupancy in the first periodic channel occupancy length based on the last symbol of the first remaining channel occupancy length in the at least one remaining channel occupancy length, when the terminal device is configured to monitor the first DCI format corresponding to at least one cell in the first service cell group and the terminal device receives at least one remaining channel occupancy length information of at least one cell indicated by the first DCI format.

40. The terminal device according to claim 39, wherein: The first remaining channel occupied length is the remaining channel occupied length with the latest ending position or the remaining channel occupied length with the earliest ending position among the at least one remaining channel occupied length.

41. The terminal device according to claim 25, 27 or 30, wherein: The P symbols are determined according to the first subcarrier spacing.

42. The terminal device according to claim 41, wherein: The first subcarrier spacing is the subcarrier spacing corresponding to the first serving cell; or, The first subcarrier spacing is preset; or, The first subcarrier spacing is configured by a network device; or, The first subcarrier spacing is the minimum subcarrier spacing among the subcarrier spacings corresponding to the serving cells included in the first serving cell group; or, The first subcarrier spacing is the maximum subcarrier spacing among the subcarrier spacings corresponding to the service cells included in the first service cell group.

43. The terminal device according to claim 41 or 42, wherein: If the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, P is greater than or equal to 10; or, If the first subcarrier spacing is 30 kHz or the first subcarrier spacing is configured as μ=1, P is greater than or equal to 12; or, If the first subcarrier spacing is 60 kHz or the first subcarrier spacing is configured as μ=2, P is greater than or equal to 22; or, If the first subcarrier spacing is 120 kHz or the first subcarrier spacing is configured as μ=3, P is greater than or equal to 25.

44. The terminal device according to claim 41 or 42, wherein: If the first subcarrier spacing is 15 kHz or the first subcarrier spacing is configured as μ=0, P is greater than or equal to 5; or, If the first subcarrier spacing is 30 kHz or the first subcarrier spacing is configured as μ=1, P is greater than or equal to 5.5; or, If the first subcarrier spacing is 60 kHz or the first subcarrier spacing is configured as μ=2, P is greater than or equal to 11.

45. A terminal device, comprising: A processor and a memory, wherein the memory is used to store a computer program, and the processor calls and runs the computer program stored in the memory to execute the steps of the physical channel monitoring method as described in any one of claims 1 to 22.

46. ​​A chip, comprising: A processor, configured to call and run a computer program from a memory so that a device equipped with the chip executes the steps of the physical channel monitoring method as described in any one of claims 1 to 22.

47. A computer-readable storage medium for storing a computer program, wherein: The computer program enables a computer to execute the steps of the physical channel monitoring method according to any one of claims 1 to 22.

48. A computer program product comprising computer program instructions, wherein: The computer program instructions enable a computer to execute the steps of the physical channel monitoring method according to any one of claims 1 to 22.

49. A computer program, which enables a computer to execute the steps of the physical channel monitoring method according to any one of claims 1 to 22.

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