Wireless communication method, terminal device, and network device

Abstract

The present application relates to a wireless communication method, a terminal device, and a network device. The wireless communication method is characterized by comprising: a terminal device receives, on a first cell, a first downlink channel or signal sent by a network device. According to the present application, an SSB can be received by a terminal device on a secondary cell of the terminal device.

Description

Wireless communication method, terminal device, and network device Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a wireless communication method, a terminal device, and a network device. Background Art

[0002] Network energy conservation is crucial for environmental sustainability, reducing environmental impact, and saving operating costs. To achieve network energy conservation, network equipment can avoid transmitting some downlink channels or signals in some cells used by terminal devices. However, in some cases, terminal devices must receive certain downlink channels or signals in some cells to achieve normal communication. Ensuring that terminal devices receive these downlink channels or signals in these cells remains a technical challenge.

[0003] Summary of the Invention

[0004] The embodiments of the present application provide a wireless communication method, a terminal device, and a network device, which can enable the terminal device to receive a first downlink channel or signal on a first cell.

[0005] An embodiment of the present application provides a wireless communication method, characterized in that the method includes:

[0006] The terminal device receives a first downlink channel or signal sent by the network device in the first cell.

[0007] An embodiment of the present application provides a wireless communication method, characterized in that the method includes:

[0008] The network device sends a first downlink channel or signal to the terminal device in the first cell.

[0009] An embodiment of the present application provides a terminal device, including:

[0010] The first transceiver module is configured to receive a first downlink channel or signal sent by a network device in a first cell.

[0011] An embodiment of the present application provides a network device, including:

[0012] The second transceiver module is used to send a first downlink channel or signal to the terminal device on the first cell.

[0013] An embodiment of the present application provides a terminal device, comprising: a transceiver, a processor, and a memory. The memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to call and execute the computer program stored in the memory, so that the terminal device performs the above-mentioned wireless communication method.

[0014] An embodiment of the present application provides a network device, comprising: a transceiver, a processor, and a memory. The memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to call and execute the computer program stored in the memory to enable the network device to perform the wireless communication method described above.

[0015] An embodiment of the present application provides a chip for implementing the above-mentioned wireless communication method.

[0016] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned wireless communication method.

[0017] An embodiment of the present application provides a computer-readable storage medium for storing a computer program. When the computer program is executed by a device, the device executes the above-mentioned wireless communication method.

[0018] An embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned wireless communication method.

[0019] An embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned wireless communication method.

[0020] The wireless communication method proposed in the embodiment of the present application can ensure that the terminal device receives the first downlink channel or signal in the first cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application.

[0022] FIG1B is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.

[0023] FIG1C is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.

[0024] FIG2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.

[0025] FIG3A is a first schematic diagram of a first MAC CE format according to an embodiment of the present application.

[0026] FIG3B is a second schematic diagram of a first MAC CE format according to an embodiment of the present application.

[0027] FIG4A is a first schematic diagram of a second MAC CE format according to an embodiment of the present application.

[0028] FIG4B is a second schematic diagram of a second MAC CE format according to an embodiment of the present application.

[0029] FIG5A is a first schematic diagram of a third MAC CE format according to an embodiment of the present application.

[0030] FIG5B is a second schematic diagram of a third MAC CE format according to an embodiment of the present application.

[0031] FIG6 is a schematic diagram of a wireless communication method according to Solution 1 of an embodiment of the present application.

[0032] FIG7 is a schematic diagram of a wireless communication method according to solution 2 of an embodiment of the present application.

[0033] FIG8 is a schematic diagram of a wireless communication method according to solution 3 of an embodiment of the present application.

[0034] FIG9 is a schematic flowchart of a wireless communication method 900 according to an embodiment of the present application.

[0035] FIG10 is a schematic block diagram of a terminal device 1000 according to an embodiment of the present application.

[0036] FIG11 is a schematic block diagram of a terminal device 1100 according to an embodiment of the present application.

[0037] FIG12 is a schematic block diagram of a network device 1200 according to an embodiment of the present application.

[0038] FIG13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application.

[0039] FIG14 is a schematic structural diagram of a chip 1400 according to an embodiment of the present application.

[0040] FIG15 is a schematic block diagram of a communication system 1500 according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] 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.

[0042] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: 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-based access to unlicensed spectrum, LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system based on unlicensed spectrum, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), Fifth Generation (5G) system or other communication systems.

[0043] 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 (D2D) communication, machine-to-machine (M2M) 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.

[0044] In one embodiment, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0045] In one embodiment, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.

[0046] 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.

[0047] 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 capabilities, 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.

[0048] In an embodiment 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 a ship, etc.); it can also be deployed in the air (for example, on an airplane, balloon, and satellite, etc.).

[0049] In an embodiment of the present application, the terminal device may 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.

[0050] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called 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 achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those 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 smart bracelets and smart jewelry for vital sign monitoring.

[0051] 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 a WLAN, an evolved base station (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 or a network device in an NTN network, etc.

[0052] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, 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.

[0053] 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). 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.

[0054] It should be understood that in the embodiments of the present application, devices having communication functions in the network / system may be referred to as communication devices. Communication devices may include network devices and terminal devices having communication functions. The network devices and terminal devices may be specific devices in the embodiments of the present application and will not be described in detail here. Communication devices may also include other devices in the communication system, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiments of the present application.

[0055] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0056] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0057] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0058] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0059] 1. Network Scenario

[0060] Communication system scenarios include terrestrial networks (TN) and non-terrestrial networks (NTN). NTN generally uses satellite communications to provide communication services to terrestrial users. NTN systems currently include the New Wireless NTN (NR-NTN) and the Internet of Things NTN (IoT-NTN), and may include other NTN systems in the future.

[0061] Figure 1A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. As shown in Figure 1A, communication system 100 may include network device 110, which may be a device that communicates with terminal device 120 (or also referred to as a communication terminal device or terminal device). Network device 110 provides communication coverage for a specific geographic area and can communicate with terminal devices located within the coverage area.

[0062] Figure 1A exemplarily shows a network device and two terminal devices. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0063] FIG1B is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG1B , it includes a terminal device 1101 and a satellite 1102, and wireless communication can be performed between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 can also be referred to as an NTN. In the architecture of the communication system shown in FIG1B , the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. In the system architecture, the satellite 1102 can be referred to as a network device. In some embodiments of the present application, the communication system may include multiple network devices 1102, and each network device 1102 may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0064] Figure 1C is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to Figure 1C, it includes a terminal device 1201, a satellite 1202 and a base station 1203. Wireless communication can be carried out between the terminal device 1201 and the satellite 1202, and communication can be carried out between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202 and the base station 1203 can also be referred to as an NTN. In the architecture of the communication system shown in Figure 1C, the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be transferred through the satellite 1202. Under this system architecture, the base station 1203 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1203 may be included in the communication system, and the coverage range of each network device 1203 may include other numbers of terminal devices, which is not limited in the embodiments of the present application.

[0065] 2. Network Energy Saving

[0066] Network energy conservation is crucial for environmental sustainability, reducing environmental impact (e.g., greenhouse gas emissions), and saving operating costs. Energy consumption has become a key component of operators' operational expenditures (OPEX). The majority of energy consumption comes from wireless access networks.

[0067] 3. SSB Transmission and Multi-Carrier Scenario in NR Systems

[0068] In the NR system, the initial access process of the terminal device can be completed by detecting the synchronization signal block (SSB or SS / PBCH block) on the synchronization raster. During the initial access process, the terminal device attempts to search for the SSB through the predefined possible time and frequency positions of the SSB, and obtains time and frequency synchronization, radio frame timing, and cell identity (ID) through the detected SSB.

[0069] After the terminal device accesses the network, the network device can configure multiple service cells as secondary cells for the terminal device according to the capabilities of the terminal device to increase the peak rate of data transmission of the terminal device. The multiple service cells of the terminal device can serve the terminal device in the form of carrier aggregation (CA) or dual connectivity (DC). The network device can activate or deactivate the secondary cell configured for the terminal device through a Media Access Control-Control Element (MAC CE) command. When the network device activates the secondary cell of the terminal device, it can also indicate the tracking reference signal (TRS) information of the secondary cell to the terminal device, so that the terminal device can quickly perform cell synchronization based on the TRS on the secondary cell. The multiple service cells of the terminal device can belong to the same timing advance group (TAG) or different TAGs. For uplink cells associated with service cells belonging to the same TAG, the same timing reference cell and the same timing advance value can be used.

[0070] In order to achieve network energy saving, the network device may not transmit SSB on the secondary cell of the terminal device, and the terminal device may not receive SSB. However, in some cases, for example, in one or more service cells included in a TAG of the terminal device, there needs to be a timing reference cell so that the terminal device can obtain the timing advance value of the uplink cell associated with the TAG based on the timing reference cell. If the timing reference cell is a secondary cell, the terminal device needs to receive the SSB on the secondary cell to obtain timing synchronization. For another example, when the network device activates the secondary cell configured for the terminal device through the MAC CE command, the terminal device needs to receive the SSB on the secondary cell to obtain timing synchronization. For another example, the terminal device needs to perform layer 1 or layer 3 measurements based on the SSB on the secondary cell. However, it is currently unclear how to enable the terminal device to receive SSB on the secondary cell, or how to enable the network device to know that the terminal device has the need to receive SSB on the secondary cell, so that the network device sends SSB on the corresponding secondary cell.

[0071] FIG2 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0072] S210. The terminal device receives a first downlink channel or signal sent by the network device in the first cell.

[0073] In some embodiments, the first cell is a secondary cell or a primary cell of the terminal device. As an example, the first cell is a secondary cell of the terminal device.

[0074] In some embodiments, the type of the first downlink channel or signal includes one or more of the following: SSB, System Information Block 1 (SIB1), Channel State Information-Reference Signal (CSI-RS), Tracking Reference Signal (TRS), Positioning Reference Signal (PRS). Among them, SSB may include an SSB burst or one or more SSBs in an SSB burst. CSI-RS may include one or more of the following: CSI-RS for CSI acquisition, CSI-RS for beam management (BM). As an example, the first downlink channel or signal is an SSB.

[0075] Through the wireless communication method proposed in the embodiment of the present application, the terminal device can receive SSB on the secondary cell of the terminal device.

[0076] In an embodiment of the present application, the first downlink channel or signal may not be transmitted on the first cell, for example, the SSB may not be transmitted on the secondary cell of the terminal device, so as to achieve network energy saving. In order for the network device to know that the terminal device needs to receive the first downlink channel or signal on the first cell, the terminal device may request the network device to send the first downlink channel or signal on the first cell, or the network device may also actively send the first downlink channel or signal on the first cell and notify the terminal device. For example, in order for the network device to know that the terminal device needs to receive SSB or other reference signals such as CSI-RS or PRS or TRS on the secondary cell, the terminal device may request the network device to transmit SSB on the secondary cell, or the network device may also actively transmit SSB on the secondary cell and notify the terminal device. Therefore, the following solutions are proposed in this application.

[0077] Solution 1: The network device sends a second downlink channel or signal to the terminal device, and the second downlink channel or signal is used to indicate whether the network device sends a first downlink channel or signal (e.g., SSB) on the first cell. The terminal device receives the second downlink channel or signal. In the case where the second downlink channel or signal indicates that the network device sends the first downlink channel or signal on the first cell, the network device sends the first downlink channel or signal on the first cell, and the terminal device receives the first downlink channel or signal on the first cell. Using this solution, the network device can instruct the terminal device to receive SSB on the secondary cell, and the terminal device can receive SSB on the secondary cell.

[0078] Solution 2: The terminal device sends a first uplink channel or signal to the network device, and the first uplink channel or signal is used to request the network device to send a first downlink channel or signal (for example, SSB) on the first cell. After receiving the first uplink channel or signal, the network device sends the first downlink channel or signal on the first cell. After sending the first uplink channel or signal, the terminal device receives the first downlink channel or signal on the first cell. Using this solution, the network device can be informed that the terminal device has a need to receive SSB on the secondary cell, so that the network device sends SSB on the corresponding secondary cell.

[0079] Solution 3: The terminal device sends a first uplink channel or signal to the network device, and the first uplink channel or signal is used to request the network device to send a first downlink channel or signal (for example, SSB) on the first cell. After receiving the first uplink channel or signal, the network device sends a second downlink channel or signal to the terminal device, and the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell. The second downlink channel or signal can be a response to the first uplink channel or signal, or it can be an indication of the network device notifying the terminal device (for example, the terminal device that sends the first uplink channel or signal and / or the terminal device that does not send the first uplink channel or signal) whether to send the first downlink channel or signal on the first cell. After sending the first uplink channel or signal, the terminal device receives the second downlink channel or signal. In the case where the second downlink channel or signal indicates that the network device sends the first downlink channel or signal on the first cell, the network device sends the first downlink channel or signal on the first cell, and the terminal device receives the first downlink channel or signal on the first cell. By using this solution, the network device can be informed that the terminal device has a need to receive SSB on the secondary cell, so that the network device sends SSB on the corresponding secondary cell; and the network device can instruct the terminal device to receive SSB on the secondary cell.

[0080] In some examples, the first downlink channel or signal and the second downlink channel or signal have a reception order requirement. For example, the terminal device first detects or receives the second downlink channel or signal, and then determines whether to receive or not receive the second downlink channel or signal based on the detection or reception result of the second downlink channel or signal.

[0081] In some examples, there may be no order requirement for receiving the first downlink channel or signal and the second downlink channel or signal. For example, the terminal device may detect or receive the first downlink channel or signal and the second downlink channel or signal at the same time; or, the terminal device may detect or receive the second downlink channel or signal first, and then detect or receive the first downlink channel or signal.

[0082] In some embodiments, the type of the second downlink channel or signal includes one or more of the following: a physical downlink shared channel (PDSCH) and a physical downlink control channel (PDCCH).

[0083] In some embodiments, the type of the first uplink channel or signal includes one or more of the following: physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), sounding reference signal (SRS), physical uplink control channel (Physical Uplink Control Channel, PUCCH), and physical random access channel (Physical Random Access Channel, PRACH).

[0084] In some embodiments, the network device sending the second downlink channel or signal to the terminal device includes: the network device sending the second downlink channel or signal to the terminal device in the second cell. Correspondingly, the terminal device receives the second downlink channel or signal sent by the network device in the second cell.

[0085] In some embodiments, the second cell is a secondary cell, a primary cell, or a primary-secondary cell of the terminal device. As an example, the second cell is a primary cell or a primary-secondary cell of the terminal device.

[0086] In some embodiments, the first cell and the second cell are the same cell.

[0087] In some embodiments, the first cell and the second cell are different cells. For example, the first cell is a secondary cell of the terminal device, and the second cell is a primary cell or a primary-secondary cell of the terminal device.

[0088] In some embodiments, the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell, including: the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell; and / or, the second downlink channel or signal is used to indicate not to send the first downlink channel or signal on the first cell.

[0089] In some examples, the second downlink channel or signal is used to instruct the network device whether to transmit the first downlink channel or signal on at least one of the plurality of cells, the plurality of cells including the first cell. For example, the second downlink channel or signal is used to instruct the network device whether to transmit the first downlink channel or signal on each of the plurality of cells.

[0090] In some embodiments, the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell, including: the second downlink channel or signal carries first indication information, and the first indication information is used to indicate whether the network device sends the first downlink channel or signal in the first cell.

[0091] For example, the second downlink channel or signal instructs the network device to send the first downlink channel or signal on the first cell, including: the first indication information instructs the network device to send the first downlink channel or signal on the first cell.

[0092] For another example, the second downlink channel or signal does not indicate the network device to send the first downlink channel or signal on the first cell, including: the first indication information does not indicate the network device to send the first downlink channel or signal on the first cell, or the first indication information indicates the network device not to send the first downlink channel or signal on the first cell.

[0093] In some embodiments, the first indication information is a first MAC CE, or the first indication information is first downlink control information (Downlink Control Information, DCI).

[0094] As an example, the second downlink channel or signal is a PDSCH, and the first indication information is a first MAC CE.

[0095] As an example, the second downlink channel or signal is a PDCCH, and the first indication information is a first DCI.

[0096] In some embodiments, the first MAC CE is used to indicate one or more of the following:

[0097] whether at least one cell among the plurality of cells is activated or deactivated;

[0098] whether the first downlink channel or signal is transmitted in at least one cell among the plurality of cells;

[0099] an index of the first downlink channel or signal sent on at least one cell among the plurality of cells;

[0100] The multiple cells include the first cell.

[0101] For example, the first MAC CE is used to indicate one or more of the following:

[0102] whether each of the multiple cells is activated or deactivated;

[0103] whether each of the plurality of cells transmits a first downlink channel or signal;

[0104] an index of a first downlink channel or signal sent on each of the plurality of cells;

[0105] The multiple cells include the first cell.

[0106] In some embodiments, the multiple cells are secondary cells. For example, the multiple cells include one or more secondary cells configured by the terminal device.

[0107] As an example, the second downlink channel or signal is PDSCH, and the first indication information is the first MAC CE, which is used to indicate whether the network device sends the first downlink channel or signal on at least one cell (for example, each cell) among the multiple cells configured with the terminal device, including the first cell.

[0108] As an example, the second downlink channel or signal is a common PDCCH, and the first indication information is a first DCI, which is used to indicate whether the network device sends the first downlink channel or signal on at least one cell (such as each cell) among multiple cells, including the first cell.

[0109] In some implementations, the first MAC CE corresponds to a first MAC CE format, and the first MAC CE format includes a first information field and a second information field, wherein:

[0110] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0111] The second information field is used to indicate whether the first downlink channel or signal is sent in at least one cell among the multiple cells.

[0112] For example, the first information field is used to indicate whether each of the multiple cells is activated or deactivated, and the second information field is used to indicate whether each of the multiple cells sends the first downlink channel or signal.

[0113] In some embodiments, the first MAC CE format is used to indicate at least one of the following: whether SSB is transmitted on each of the multiple cells, and whether each of the multiple cells is activated or deactivated.

[0114] Figures 3A and 3B respectively show schematic diagrams of the first MAC CE format when the maximum number of cells is 7 or 31. As shown in Figures 3A and 3B, the first MAC CE format includes a first information field (such as the C field) and a second information field (such as the S field), wherein each bit in the C field can indicate whether a cell configured by the terminal device is activated or deactivated, and each bit in the S field can indicate whether a cell configured by the terminal device sends an SSB. The first MAC CE format may also include an R field, which is a reserved bit. If the terminal device is not configured with the corresponding cell, the corresponding bits in the C field and the S field are ignored (i.e., not interpreted). For example, if the cell number configured by the terminal device is 1 to 3, C4 to C7 and S4 to S7 in Figure 3A are ignored. For another example, if the cell number configured by the terminal device is 1 to 15, C16 to C31 and S16 to S31 in Figure 3B are ignored. It can be understood that the letters in the aforementioned information fields are only examples and can also be replaced with other letters; for example, the S field can be replaced with the X field.

[0115] In one example, Ci is set to a first preset value (for example, 1) to indicate that the cell numbered Ci configured by the terminal device is activated, and Ci is set to a second preset value (for example, 0) to indicate that the cell numbered Ci configured by the terminal device is deactivated. Si is set to a first preset value (for example, 1) to indicate that the terminal device sends SSB on the cell numbered Ci configured by the terminal device, and Si is set to a second preset value (for example, 0) to indicate that the terminal device does not send SSB on the cell numbered Ci configured by the terminal device. The R field is a reserved bit, which is set to a preset value (for example, 0). In the various embodiments of the present application, the specific value of the preset value is only an example and can also be replaced by other values; for example, Ci is set to 0 to indicate that the cell numbered Ci configured by the terminal device is activated, and Ci is set to the second preset value 1 to indicate that the cell numbered Ci configured by the terminal device is deactivated.

[0116] In this example, whether the cell is configured to be activated or deactivated may be independent of whether the cell is configured to send SSB. For example, the first cell may be configured as one of the following: activated and sending SSB, deactivated and sending SSB, activated and not sending SSB, deactivated and not sending SSB. Alternatively, whether the cell is configured to be activated or deactivated may be associated with whether the cell is configured to send SSB. For example, only a cell configured to be activated can be configured to send SSB, in which case the first cell may be configured as one of the following: activated and sending SSB, activated and not sending SSB, deactivated. When a cell is configured to be deactivated, the default behavior of the cell is to send SSB or the default behavior of the cell is not to send SSB.

[0117] In some implementations, the first MAC CE corresponds to a second MAC CE format, and the second MAC CE format includes a first information field and a second information field, wherein:

[0118] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0119] The second information field is used to indicate whether at least one activated cell among the multiple cells transmits a first downlink channel or signal, and / or an index of the transmitted first downlink channel or signal.

[0120] For example, the first information field is used to indicate whether each cell in a plurality of cells is activated or deactivated, and the second information field is used to indicate whether each activated cell in the plurality of cells sends a first downlink channel or signal, and / or the index of the sent first downlink channel or signal.

[0121] In some examples, the second information field includes N rows of bits, where the N rows of bits correspond one-to-one to the N activated cells, where N is greater than or equal to 1, and each row of bits in the N rows of bits is used to indicate one of the following:

[0122] The index of the first downlink channel or signal sent;

[0123] The first downlink channel or signal is not sent.

[0124] In some examples, each row of bits in the N rows of bits includes M bits, which correspond one-to-one to the indexes of M first downlink channels or signals, and each of the M bits is used to indicate whether the network device sends the first downlink channel or signal of the corresponding index, and M is greater than or equal to 1.

[0125] In some embodiments, the second MAC CE format is used to indicate at least one of the following: whether SSB is sent on each of the multiple cells, the index of the SSB sent on each of the multiple cells, and whether each of the multiple cells is activated or deactivated.

[0126] Figures 4A and 4B respectively show schematic diagrams of the second MAC CE format when the maximum number of cells is 7 or 31. As shown in Figures 4A and 4B, the second MAC CE format includes a first information field (such as the C field) and a second information field (SSB index field), wherein each bit in the C field can indicate whether a cell configured by the terminal device is activated or deactivated, and the SSB index field is optional. When the bit in the C field indicates that N cells are activated, the SSB index field includes N rows of bits, and the N rows of bits correspond to the numbering sequence of the activated cells in sequence, and each row of bits is used to indicate whether a cell sends an SSB or the index of the sent SSB. The second MAC CE format may also include an R field, which is a reserved bit. If the terminal device is not configured with the corresponding cell, the corresponding bit in the C field is ignored (i.e., not interpreted). For example, if the cell number configured by the terminal device is 1 to 3, C4 to C7 in Figure 4A are ignored. For another example, if the terminal device is configured with cell numbers 1 to 15, then C16 to C31 in FIG4B are ignored.

[0127] In one example, Ci is set to a first preset value (for example, 1), indicating that the cell numbered Ci configured by the terminal device is activated, and Ci is set to a second preset value (for example, 0), indicating that the cell numbered Ci configured by the terminal device is deactivated. When Ci is set to the first preset value (for example, 1), the second MAC CE format includes a row of SSB index fields, which are used to indicate whether the cell with Ci set to the first preset value sends an SSB or the SSB index of the sent SSB burst, where the SSB burst includes one or more SSBs. In a specific example, when the row of SSB index fields is set to all 0s, it indicates that the corresponding cell does not send an SSB, otherwise, the row of SSB index fields is used to indicate the index of the SSB sent by the corresponding cell. The R field is a reserved bit, which is set to a preset value (for example, 0).

[0128] For example, the cell numbers configured for the terminal device are 1 to 5, and C1 to C5 are set to 10011, respectively, indicating that the cells numbered 1, 4, and 5 are activated. The second MAC CE format includes three rows of SSB index fields, where the SSB index field in the first row indicates 11010000 from high to low, the SSB index field in the second row indicates 00000000 from high to low, and the SSB index field in the third row indicates 11110000 from high to low, indicating that the SSB indexes of the SSB burst sent on cell numbered 1 are SSB0, SSB1, and SSB3, the SSB is not sent on cell numbered 4, and the SSB indexes of the SSB burst sent on cell numbered 5 are SSB0, SSB1, SSB2, and SSB3.

[0129] In some implementations, the first MAC CE corresponds to a third MAC CE format, and the third MAC CE format includes a first information field, where the first information field is used to indicate one of the following:

[0130] whether at least one of the plurality of cells is activated or deactivated;

[0131] whether at least one cell among the plurality of cells transmits a first downlink channel or signal;

[0132] Whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0133] For example, the first information field is used to indicate one of the following:

[0134] whether each of the multiple cells is activated or deactivated;

[0135] whether each of the plurality of cells transmits a first downlink channel or signal;

[0136] Whether each cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0137] In some examples, the third MAC CE format also includes a second information field.

[0138] When the second information field indicates the first value, the first information field is used to indicate whether at least one cell (eg, each cell) among the multiple cells is activated or deactivated; and / or,

[0139] When the second information field indicates the second value, the first information field is used to indicate whether at least one cell (such as each cell) among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0140] In some examples, the third MAC CE format also includes a second information field.

[0141] When the second information field indicates the first value, the first information field is used to indicate whether at least one cell (eg, each cell) among the multiple cells is activated or deactivated; and / or,

[0142] When the second information field indicates the second value, the first information field is used to indicate whether at least one cell (eg, each cell) among the multiple cells transmits the first downlink channel or signal.

[0143] In some embodiments, the third MAC CE format is used to indicate whether each of the multiple cells is activated or deactivated, and / or whether each of the multiple cells is activated or deactivated, wherein SSB is transmitted on the activated cell.

[0144] In some embodiments, the third MAC CE format is used to indicate whether each of the multiple cells is activated or deactivated, and / or whether SSB is transmitted on each of the multiple cells.

[0145] Figures 5A and 5B respectively show schematic diagrams of the third MAC CE format when the maximum number of cells is 7 or 31. As shown in Figures 5A and 5B, the third MAC CE format includes a first information field (such as the C field) and a second information field (such as the R field), wherein each bit in the C field can be associated with a cell configured with the terminal device. If the terminal device is not configured with the corresponding cell, the corresponding bit in the C field is ignored (i.e., not interpreted). For example, if the cell number configured for the terminal device is 1 to 3, C4 to C7 in Figure 5A are ignored. For another example, if the cell number configured for the terminal device is 1 to 15, C16 to C31 in Figure 5B are ignored.

[0146] In one example, Ci is set to a first preset value (e.g., 1) to indicate that the terminal device is configured to send SSB in a cell numbered Ci, and Ci is set to a second preset value (e.g., 0) to indicate that the terminal device is configured not to send SSB in a cell numbered Ci. The R field is a reserved bit and is set to a preset value (e.g., 0).

[0147] In another example, when the R domain is set to a first preset value (for example, 1), Ci is set to the first preset value (for example, 1), indicating that the terminal device sends SSB in the cell with the cell number Ci configured, and Ci is set to the second preset value (for example, 0), indicating that the terminal device does not send SSB in the cell with the cell number Ci configured; when the R domain is set to the second preset value (for example, 0), Ci is set to the first preset value (for example, 1), indicating that the terminal device is activated in the cell with the cell number Ci configured, and Ci is set to the second preset value (for example, 0), indicating that the terminal device is deactivated in the cell with the cell number Ci configured.

[0148] In another example, when the R domain is set to the first preset value (for example, 1), Ci is set to the first preset value (for example, 1), indicating that the cell with the cell number Ci configured by the terminal device is activated, and Ci is set to the second preset value (for example, 0), indicating that the cell with the cell number Ci configured by the terminal device is deactivated; when the R domain is set to the second preset value (for example, 0), Ci is set to the first preset value (for example, 1), indicating that the cell with the cell number Ci configured by the terminal device is activated, and SSB is sent on the activated cell, and Ci is set to the second preset value (for example, 0), indicating that the cell with the cell number Ci configured by the terminal device is deactivated, and SSB is not sent on the deactivated cell.

[0149] In some examples, the network device may further configure second indication information for the terminal device, and the third MAC CE format includes a first information field. When the terminal device is not configured with the second indication information or when the second indication information configured for the terminal device indicates disabling, the first information field may be used to indicate whether at least one cell (such as each cell) among the multiple cells is activated or deactivated; and / or,

[0150] When the terminal device is configured with the second indication information or when the second indication information configured on the terminal device indicates enable, the first information field is used to indicate whether at least one cell among multiple cells (such as each cell) is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0151] Still taking Figures 5A and 5B as an example, as shown in Figures 5A and 5B, in this example, the third MAC CE format includes a first information field (such as the C field), wherein each bit in the C field can be associated with a cell configured by the terminal device. In one example, when the terminal device is not configured with the second indication information or when the second indication information configured for the terminal device indicates de-enabling, Ci is set to a first preset value (such as 1) to indicate that the cell numbered Ci configured by the terminal device is activated, and Ci is set to a second preset value (such as 0) to indicate that the cell numbered Ci configured by the terminal device is deactivated; when the terminal device is configured with the second indication information or when the second indication information configured for the terminal device indicates enabling, Ci is set to the first preset value (such as 1) to indicate that the cell numbered Ci configured by the terminal device is activated, and the SSB is sent on the activated cell, and Ci is set to the second preset value (such as 0) to indicate that the cell numbered Ci configured by the terminal device is deactivated, and the deactivated cell does not send SSB. The third MAC CE format may further include a reserved field (such as an R field), where the R field is a reserved bit and is set to a preset value (such as 0).

[0152] In some embodiments, the terminal device may also start or restart the first timer.

[0153] For example, in some embodiments, the terminal device starts or restarts the first timer after receiving the second downlink channel or signal, including: the terminal device starts or restarts the first timer from the end position of the last symbol of the second downlink channel or signal; or, the second downlink channel or signal is PDCCH, the terminal device starts or restarts the first timer from the end position of the last symbol of the control resource set (Control-Resource Set, CORESET) to which the PDCCH belongs; or, the second downlink channel or signal is PDSCH, the terminal device starts or restarts the first timer from the effective time of the first MAC CE carried by the PDSCH.

[0154] In some embodiments, the terminal device starts or restarts the first timer after receiving the second downlink channel or signal, including: the terminal device starts or restarts the first timer after receiving the second downlink channel or signal and a first duration has elapsed. The first duration may be predefined or configured by the network device.

[0155] As an example, the terminal device starts or restarts the first timer from the end position of the last symbol of the second downlink channel or signal and after a first period of time; or, the second downlink channel or signal is PDCCH, the terminal device starts or restarts the first timer from the end position of the last symbol of the CORESET to which the PDCCH belongs and after a first period of time; or, the second downlink channel or signal is PDSCH, the terminal device starts or restarts the first timer from the effective time of the first MAC CE carried by the PDSCH and after a first period of time.

[0156] In some embodiments, during the validity period of the first timer, the network device sends a first downlink channel or signal on the first cell, and / or the terminal device receives a first downlink channel or signal on the first cell.

[0157] In some embodiments, when the second downlink channel or signal indicates that the network device sends the first downlink channel or signal on the first cell, within the validity period of the first timer, the network device sends the first downlink channel or signal on the first cell, and / or the terminal device receives the first downlink channel or signal on the first cell.

[0158] In some embodiments, the terminal device receives the second downlink channel or signal after the validity period of the first timer expires. For example, after the validity period of the first timer expires, the terminal device receives the second downlink channel or signal sent by the network device on the second cell.

[0159] In some embodiments, if the terminal device receives the second downlink channel or signal sent by the network device again in the second cell, the terminal device restarts the first timer.

[0160] In some embodiments, the first timer and / or the duration of the first timer is configured by the network device.

[0161] In some embodiments, the first timer and / or the duration of the first timer is predefined.

[0162] In some embodiments, the terminal device sending the first uplink channel or signal to the network device includes: the terminal device sending the first uplink channel or signal to the network device on the third cell. Correspondingly, the network device receives the first uplink channel or signal sent by the terminal device on the third cell.

[0163] In some embodiments, the third cell is a secondary cell, a primary cell, or a primary-secondary cell of the terminal device. As an example, the third cell is a primary cell or a primary-secondary cell of the terminal device.

[0164] In some embodiments, the first cell and the third cell are the same cell.

[0165] In some embodiments, the first cell and the third cell are different cells. For example, the first cell is a secondary cell, and the third cell is a primary cell or a primary-secondary cell.

[0166] In some embodiments, when the first cell and the third cell are the same cell, the type of the first uplink channel or signal is one of the following: SRS, PUCCH, PRACH.

[0167] In some embodiments, when the first cell and the third cell are different cells, or when the third cell is a primary cell or a primary-secondary cell, the type of the first uplink channel or signal is PUSCH.

[0168] In some embodiments, the third cell and the second cell are the same cell. For example, the terminal device sends a first uplink channel or signal to the network device on the second cell, and receives a second downlink channel or signal on the second cell.

[0169] In some embodiments, the third cell and the second cell are different cells.

[0170] In some embodiments, the third cell, the second cell, and the first cell are the same cell. For example, the terminal device sends a first uplink channel or signal to the network device on the first cell, and receives a second downlink channel or signal and a first downlink channel or signal on the first cell.

[0171] In some embodiments, the first uplink channel or signal is used to request the network device to send a first downlink channel or signal on the first cell, including: the type of the first uplink channel or signal is PUSCH, the first uplink channel or signal carries a second MAC CE, and the second MAC CE is used to request the network device to send the first downlink channel or signal on the first cell. For example, the second MAC CE is used to request the network device to send the first downlink channel or signal on the first cell, or the second MAC CE is used to request the network device not to send the first downlink channel or signal on the first cell. As an example, the first cell and the third cell are different cells, and the terminal device sends a first PUSCH on the third cell, and the first PUSCH carries a second MAC CE, and the second MAC CE is used to request the network device to send an SSB on the first cell.

[0172] In some embodiments, the first uplink channel or signal is used to request a network device to send a first downlink channel or signal on a first cell, including: the first uplink channel or signal is used to request the network device to send the first downlink channel or signal on at least one of a plurality of cells, the plurality of cells including the first cell. For example, the first uplink channel or signal is used to request the network device to send or not send the first downlink channel or signal on each of a plurality of cells, the plurality of cells including the first cell.

[0173] As an example, the first uplink channel or signal is a PUSCH, the PUSCH carries a second MAC CE, and the second MAC CE is used to request the network device to send the first downlink channel or signal on at least one cell among multiple cells, including the first cell.

[0174] As another example, the first cell and the third cell are different cells, and the terminal device sends a first PUSCH on the third cell. The first PUSCH carries a second MAC CE, and the second MAC CE is used to request the network device to send SSB on at least one cell among multiple cells, including the first cell.

[0175] In some embodiments, the terminal device may start or restart the second timer.

[0176] In some embodiments, the terminal device starts or restarts the second timer after sending the first uplink channel or signal. For example, the terminal device starts or restarts the second timer starting from the end position of the last symbol of the first uplink channel or signal; or the terminal device starts or restarts the second timer starting from the end position of the last symbol of the first uplink channel or signal and after a second duration has elapsed. The second duration is predefined or configured by the network device.

[0177] In some embodiments, during the validity period of the second timer, the network device sends the first downlink channel or signal and / or the second downlink channel or signal, and / or the terminal device receives the first downlink channel or signal and / or the second downlink channel or signal.

[0178] In some embodiments, during the validity period of the second timer, the terminal device does not send the first uplink channel or signal to the network device.

[0179] In some embodiments, if the terminal device does not receive the first downlink channel or signal within the validity period of the second timer, the terminal device may send the first uplink channel or signal after the validity period of the second timer expires, that is, the terminal device re-sends the first uplink channel or signal to the network device.

[0180] In some embodiments, if the terminal device does not receive the second downlink channel or signal within the validity period of the second timer, the terminal device may send the first uplink channel or signal after the validity period of the second timer expires, that is, the terminal device re-sends the first uplink channel or signal to the network device.

[0181] In some embodiments, if the terminal device does not receive the first downlink channel or signal and does not receive the second downlink channel or signal within the validity period of the second timer, the terminal device may send the first uplink channel or signal after the validity period of the second timer expires, that is, the terminal device re-sends the first uplink channel or signal to the network device.

[0182] In some embodiments, if the terminal device re-sends the first uplink channel or signal to the network device, the terminal device restarts the second timer after resending the first uplink channel or signal.

[0183] In some embodiments, the second timer and / or the duration of the second timer is configured by the network device.

[0184] In some embodiments, the second timer and / or the duration of the second timer is predefined.

[0185] In some embodiments, the first uplink channel or signal and the second downlink channel or signal are transmitted through the same cell. For example, the first uplink channel or signal and the second downlink channel or signal are both transmitted through the first cell. In another example, the first uplink channel or signal and the second downlink channel or signal are both transmitted through the second cell.

[0186] In some embodiments, the first uplink channel or signal and the second downlink channel or signal are transmitted through different cells. For example, the first uplink channel or signal is transmitted through the second cell, and the second downlink channel or signal is transmitted through the first cell.

[0187] In some embodiments, the method proposed in the embodiments of the present application also includes: the terminal device receives first configuration information sent by the network device, and the first configuration information is used to configure resources of the first downlink channel or signal.

[0188] In some embodiments, the first downlink channel or signal is an SSB, and the first configuration information is used to configure at least one of the following information: an identifier of the first cell, a first SSB set on the first cell, a time domain position of the first SSB set, a frequency domain position of the first SSB set, and a subcarrier spacing of the first SSB.

[0189] In some examples, the time domain position of the first SSB set includes at least one of the following: an SSB measurement timing configuration (SMTC) window associated with the first SSB set, a period of the first SSB set, and an indication of the half frame in which the first SSB set is located (e.g., the first half frame or the second half frame).

[0190] In some examples, the frequency domain location of the first SSB set includes an Absolute Radio-Frequency Channel Number (ARFCN) value (e.g., ARFCN-ValueNR).

[0191] In some embodiments, the first downlink channel or signal is SSB, and the first configuration information is used to configure at least one of the following information: identifiers of multiple cells, SSB sets on multiple cells, time domain positions of SSB sets on multiple cells, frequency domain positions of SSB sets on multiple cells, and subcarrier spacing of SSBs on multiple cells, wherein the multiple cells include the first cell.

[0192] In some embodiments, the method proposed in the embodiments of the present application also includes: the terminal device receives second configuration information sent by the network device, and the second configuration information is used to configure resources of the second downlink channel or signal.

[0193] In some embodiments, the second configuration information is used to configure at least one of the following information:

[0194] The time domain position of the second downlink channel or signal;

[0195] The frequency domain position of the second downlink channel or signal;

[0196] When the type of the second downlink channel or signal is PDSCH, scheduling the time domain position and / or frequency domain position of the PDCCH of the second downlink channel or signal;

[0197] an association relationship between a second downlink channel or signal and the first cell;

[0198] First Timer;

[0199] The length of the first timer.

[0200] In some embodiments, the method further includes: the terminal device receives third configuration information sent by the network device, where the third configuration information is used to configure resources of the first uplink channel or signal.

[0201] In some embodiments, the third configuration information is used to configure at least one of the following information:

[0202] The time domain position of the first uplink channel or signal;

[0203] The frequency domain position of the first uplink channel or signal;

[0204] When the type of the first uplink channel or signal is PUSCH, the time domain position and / or frequency domain position of the PDCCH that schedules the first uplink channel or signal;

[0205] an association relationship between the first uplink channel or signal and the first cell;

[0206] Second timer;

[0207] The length of the second timer.

[0208] Figure 6 is a schematic diagram of a wireless communication method according to scheme 1 of an embodiment of the present application. In the example shown in Figure 6, the first cell and the second cell are the same cell. The network device sends a second downlink channel or signal to the terminal device on the first cell (assuming that the second downlink channel or signal carries the first MAC CE), and the second downlink channel or signal (i.e., the first MAC CE) is used to indicate whether the network device sends the first downlink channel or signal (e.g., SSB Burst) on the first cell. The terminal device receives the second downlink channel or signal on the first cell. The second downlink channel or signal indicates that the network device sends the first downlink channel or signal (e.g., SSB Bust) on the first cell. The terminal device starts a first timer, and within the validity period of the first timer, the network device sends an SSB Burst on the first cell, and the terminal device receives the SSB Burst on the first cell. After the first timer expires, the network device does not send an SSB Burst on the first cell, and the terminal device does not receive an SSB Burst on the first cell.

[0209] Figure 7 is a schematic diagram of a wireless communication method according to scheme 2 of an embodiment of the present application. In the example shown in Figure 7, the first cell and the third cell are the same or different cells. The terminal device sends a first uplink channel or signal to the network device on the third cell (assuming that the first uplink channel or signal carries a second MAC CE), and the first uplink channel or signal (i.e., the second MAC CE) is used to request the network device to send a first downlink channel or signal (SSB Burst) on the first cell. The terminal device starts a second timer. Within the validity period of the second timer, if the terminal device does not receive the SSB Burst on the first cell, the terminal device may resend the first uplink channel or signal on the third cell and restart the second timer. After receiving the first uplink channel or signal, the network device sends the SSB Burst on the first cell, and the terminal device receives the SSB Burst on the first cell.

[0210] Figure 8 is a schematic diagram of a wireless communication method according to scheme 3 of an embodiment of the present application. In the example shown in Figure 8, the first cell and the second cell are the same cell. The first cell and the third cell are the same or different cells. The terminal device sends a first uplink channel or signal to the network device on the third cell, and the first uplink channel or signal is used to request the network device to send a first downlink channel or signal (SSB Burst) on the first cell. The terminal device starts a second timer. During the validity period of the second timer, if the terminal device does not receive the second downlink channel or signal and / or does not receive the first downlink channel or signal (e.g., SSB Burst) on the first cell, the terminal device can resend the first uplink channel or signal on the third cell and restart the second timer. After receiving the first uplink channel or signal, the network device sends a second downlink channel or signal to the terminal device on the first cell, and the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal (SSB Burst) on the first cell. The terminal device receives the second downlink channel or signal on the first cell. Wherein, the second downlink channel or signal indicates that the network device sends the first downlink channel or signal (SSB Bust) on the first cell. The terminal device starts a first timer. During the validity period of the first timer, the network device sends an SSB Burst on the first cell, and the terminal device receives an SSB Burst on the first cell. After the first timer expires, the network device does not send an SSB Burst on the first cell, and the terminal device does not receive an SSB Burst on the first cell.

[0211] FIG9 is a schematic flow chart of a wireless communication method 900 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0212] S910. The network device sends a first downlink channel or signal to the terminal device in the first cell.

[0213] In one embodiment, the type of the first downlink channel or signal includes one or more of the following: SSB, SIB1, CSI-RS, TRS, and PRS. In one example, the first downlink channel or signal is SSB.

[0214] In one embodiment, the first cell includes a secondary cell, a primary cell, or a primary-secondary cell of the terminal device. In one example, the first cell is a secondary cell of the terminal device.

[0215] Through the wireless communication method proposed in the embodiment of the present application, the network device can send SSB to the terminal device on the secondary cell of the terminal device.

[0216] In one embodiment, the method further comprises:

[0217] The network device sends a second downlink channel or signal to the terminal device, where the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell.

[0218] By sending the second downlink channel or signal to the terminal device, the terminal device can be notified to receive the first downlink channel or signal in the first cell.

[0219] In one embodiment, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0220] The second downlink channel or signal is used to instruct the network device to send the first downlink channel or signal on the first cell; and / or,

[0221] The second downlink channel or signal is used to instruct the network device not to send the first downlink channel or signal on the first cell.

[0222] In one embodiment, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0223] The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on at least one cell among a plurality of cells, the plurality of cells including the first cell.

[0224] In one embodiment, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0225] The second downlink channel or signal carries first indication information, and the first indication information is used to instruct the network device whether to send the first downlink channel or signal on the first cell.

[0226] In one embodiment, the second downlink channel or signal is a physical downlink shared channel PDSCH, and the first indication information is a first MAC CE; or,

[0227] The second downlink channel or signal is a physical downlink control channel PDCCH, and the first indication information is first downlink control information DCI.

[0228] In one embodiment, the first MAC CE is used to indicate one or more of the following:

[0229] whether at least one of the plurality of cells is activated or deactivated;

[0230] whether a first downlink channel or signal is transmitted in at least one cell among the plurality of cells;

[0231] an index of a first downlink channel or signal sent on at least one cell among the plurality of cells;

[0232] Among them, the multiple cells include the first cell.

[0233] In one embodiment, the first MAC CE corresponds to a first MAC CE format, and the first MAC CE format includes a first information field and a second information field, wherein:

[0234] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0235] The second information field is used to indicate whether the first downlink channel or signal is sent in at least one cell among the multiple cells.

[0236] In one embodiment, the first MAC CE corresponds to a second MAC CE format, and the second MAC CE format includes a first information field and a second information field, wherein:

[0237] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0238] The second information field is used to indicate whether at least one activated cell among the multiple cells transmits a first downlink channel or signal, and / or an index of the transmitted first downlink channel or signal.

[0239] In one embodiment, the second information field includes N rows of bits, where the N rows of bits correspond one-to-one to the N activated cells, where N is greater than or equal to 1, and each row of bits in the N rows of bits is used to indicate one of the following:

[0240] The index of the first downlink channel or signal sent;

[0241] The first downlink channel or signal is not sent.

[0242] In one embodiment, it is characterized in that each row of bits in N rows of bits includes M bits, the M bits correspond one-to-one to the indexes of M first downlink channels or signals, and each bit in the M bits is used to indicate whether the network device sends the first downlink channel or signal of the corresponding index, and M is greater than or equal to 1.

[0243] In one implementation, the first MAC CE corresponds to a third MAC CE format, and the third MAC CE format includes a first information field, where the first information field is used to indicate one of the following:

[0244] whether at least one of the plurality of cells is activated or deactivated;

[0245] whether a first downlink channel or signal is transmitted in at least one cell among the plurality of cells;

[0246] Whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0247] In one embodiment, the third MAC CE format also includes a second information field.

[0248] When the second information field indicates the first value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or,

[0249] When the second information field indicates the second value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0250] In one embodiment, when the terminal device is not configured with the second indication information or the second indication information configured on the terminal device indicates disabling, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or,

[0251] When the terminal device is configured with the second indication information or the second indication information configured on the terminal device indicates enable, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0252] In one embodiment, the network device sends the second downlink channel or signal to the terminal device, including:

[0253] The network device sends a second downlink channel or signal on the second cell.

[0254] In one embodiment, before the network device sends the first downlink channel or signal on the first cell, the method further includes:

[0255] The network device receives a first uplink channel or signal from the terminal device, where the first uplink channel or signal is used to request the network device to send a first downlink channel or signal on the first cell.

[0256] By receiving the first uplink channel or signal sent by the terminal device, the network device can learn that the terminal device has a need to receive SSB on the secondary cell, thereby enabling the network device to send SSB on the corresponding secondary cell.

[0257] In one embodiment, the first uplink channel or signal is used to request a network device to send a first downlink channel or signal on a first cell, including:

[0258] The first uplink channel or signal is used to request the network device to send a first downlink channel or signal on at least one cell among a plurality of cells, including the first cell.

[0259] In one embodiment, the type of the first uplink channel or signal includes one or more of the following: SRS; PUCCH; PRACH.

[0260] In one embodiment, the first uplink channel or signal is used to request a network device to send a first downlink channel or signal on a first cell, including:

[0261] The type of the first uplink channel or signal is a physical uplink shared channel PUSCH. The first uplink channel or signal carries a second MAC CE. The second MAC CE is used to request the network device to send the first downlink channel or signal on the first cell.

[0262] In one embodiment, the network device receives a first uplink channel or signal from the terminal device, including:

[0263] The network device receives a first uplink channel or signal on the third cell.

[0264] In one embodiment, the method further comprises:

[0265] The network device sends first configuration information to the terminal device, where the first configuration information is used to configure resources of a first downlink channel or signal.

[0266] In one embodiment, the first configuration information is used to configure at least one of the following information: an identifier of the first cell, a first SSB set on the first cell, a time domain position of the first SSB set, a frequency domain position of the first SSB set, and a subcarrier spacing of the SSB on the first cell.

[0267] In one embodiment, the time domain position of the first SSB set includes at least one of the following: an SMTC window associated with the first SSB set, a period of the first SSB set, and an indication of the half frame in which the first SSB set is located.

[0268] In one embodiment, the frequency domain position of the first SSB set includes an ARFCN value corresponding to the first SSB set.

[0269] In one embodiment, the first configuration information is used to configure at least one of the following information: identifiers of multiple cells, SSB sets on multiple cells, time domain positions of SSB sets on multiple cells, frequency domain positions of SSB sets on multiple cells, and subcarrier spacing of SSBs on multiple cells; wherein the multiple cells include the first cell.

[0270] In one embodiment, the method further comprises:

[0271] The network device sends second configuration information to the terminal device, where the second configuration information is used to configure resources of a second downlink channel or signal.

[0272] In one embodiment, the second configuration information is used to configure at least one of the following information:

[0273] The time domain position of the second downlink channel or signal;

[0274] The frequency domain position of the second downlink channel or signal;

[0275] When the type of the second downlink channel or signal is PDSCH, scheduling the time domain position and / or frequency domain position of the PDCCH of the second downlink channel or signal;

[0276] an association relationship between the second downlink channel or signal and the first cell;

[0277] First Timer;

[0278] The length of the first timer.

[0279] In one embodiment, the method further comprises:

[0280] The network device sends third configuration information to the terminal device, where the third configuration information is used to configure resources of the first uplink channel or signal.

[0281] In one embodiment, the third configuration information is used to configure at least one of the following information:

[0282] The time domain position of the first uplink channel or signal;

[0283] The frequency domain position of the first uplink channel or signal;

[0284] When the type of the first uplink channel or signal is PUSCH, the time domain position and / or frequency domain position of the PDCCH that schedules the first uplink channel or signal;

[0285] an association relationship between the first uplink channel or signal and the first cell;

[0286] Second timer;

[0287] The length of the second timer.

[0288] For a specific example of the network device executing method 900 of this embodiment, reference can be made to the relevant description of the network device, such as a base station, in the above method 200 , which will not be repeated here for the sake of brevity.

[0289] FIG10 is a schematic block diagram of a terminal device 1000 according to an embodiment of the present application. The terminal device 1000 may include:

[0290] The first transceiver module 1010 is configured to receive a first downlink channel or signal sent by a network device in a first cell.

[0291] In some implementations, the first transceiver module 1010 is further configured to receive a second downlink channel or signal, where the second downlink channel or signal is configured to instruct the network device whether to transmit the first downlink channel or signal on the first cell.

[0292] In some implementations, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0293] The second downlink channel or signal is used to instruct the network device to send the first downlink channel or signal on the first cell; and / or,

[0294] The second downlink channel or signal is used to instruct the network device not to send the first downlink channel or signal on the first cell.

[0295] In some implementations, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0296] The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on at least one cell among a plurality of cells, the plurality of cells including the first cell.

[0297] In some implementations, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0298] The second downlink channel or signal carries first indication information, and the first indication information is used to instruct the network device whether to send the first downlink channel or signal on the first cell.

[0299] In some implementations, the second downlink channel or signal is a physical downlink shared channel PDSCH, and the first indication information is a first MAC CE; or,

[0300] The second downlink channel or signal is a physical downlink control channel PDCCH, and the first indication information is first downlink control information DCI.

[0301] In some embodiments, the first MAC CE is used to indicate one or more of the following:

[0302] whether at least one of the plurality of cells is activated or deactivated;

[0303] whether a first downlink channel or signal is transmitted in at least one cell among the plurality of cells;

[0304] an index of a first downlink channel or signal sent on at least one cell among the plurality of cells;

[0305] Among them, the multiple cells include the first cell.

[0306] In some implementations, the first MAC CE corresponds to a first MAC CE format, and the first MAC CE format includes a first information field and a second information field, wherein:

[0307] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0308] The second information field is used to indicate whether the first downlink channel or signal is sent in at least one cell among the multiple cells.

[0309] In some implementations, the first MAC CE corresponds to a second MAC CE format, and the second MAC CE format includes a first information field and a second information field, wherein:

[0310] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0311] The second information field is used to indicate whether at least one activated cell among the multiple cells transmits a first downlink channel or signal, and / or an index of the transmitted first downlink channel or signal.

[0312] In some embodiments, the second information field includes N rows of bits, where the N rows of bits correspond one-to-one to the N activated cells, where N is greater than or equal to 1, and each row of bits in the N rows of bits is used to indicate one of the following:

[0313] The index of the first downlink channel or signal sent;

[0314] The first downlink channel or signal is not sent.

[0315] In some embodiments, each row of bits in N rows of bits includes M bits, the M bits correspond one-to-one to the indexes of M first downlink channels or signals, and each of the M bits is used to indicate whether the network device sends the first downlink channel or signal of the corresponding index, and M is greater than or equal to 1.

[0316] In some implementations, the first MAC CE corresponds to a third MAC CE format, and the third MAC CE format includes a first information field, where the first information field is used to indicate one of the following:

[0317] whether at least one of the plurality of cells is activated or deactivated;

[0318] whether a first downlink channel or signal is transmitted in at least one cell among the plurality of cells;

[0319] Whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0320] In some implementations, the third MAC CE format further includes a second information field.

[0321] When the second information field indicates the first value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or,

[0322] When the second information field indicates the second value, the first information field is used to indicate whether the first downlink channel or signal is sent in at least one cell among the multiple cells.

[0323] In some embodiments, when the terminal device is not configured with the second indication information or the second indication information configured on the terminal device indicates disabling, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or,

[0324] When the terminal device is configured with the second indication information or the second indication information configured on the terminal device indicates enable, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0325] FIG11 is a schematic block diagram of a terminal device 1100 according to an embodiment of the present application. As shown in FIG11 , the terminal device 1100 includes:

[0326] The first processing module 1120 is configured to start or restart a first timer.

[0327] In some embodiments, the first processing module 1120 is configured to:

[0328] Starting or restarting the first timer from the end position of the last symbol of the second downlink channel or signal; or,

[0329] Starting or restarting the first timer from the end position of the last symbol of the CORESET to which the second downlink channel or signal belongs; or,

[0330] Starting or restarting the first timer from the time at which the first MAC CE carried by the second downlink channel or signal takes effect; or,

[0331] Starting or restarting the first timer from the end position of the last symbol of the second downlink channel or signal and after a first time period; or,

[0332] Starting or restarting the first timer from the end position of the last symbol of the CORESET to which the second downlink channel or signal belongs and after a first duration has elapsed; or,

[0333] The first timer is started or restarted after a first duration has passed and the first MAC CE carried by the second downlink channel or signal takes effect.

[0334] In some implementations, the first duration is predefined, or the first duration is configured by the network device.

[0335] In some implementations, the first transceiver module 1010 is configured to receive a first downlink channel or signal on a first cell within a validity period of a first timer.

[0336] In some implementations, the first transceiver module 1010 is further configured to receive a second downlink channel or signal after the first timer expires.

[0337] In some implementations, the first transceiver module 1010 is configured to receive a second downlink channel or signal on a second cell.

[0338] In some implementations, the first transceiver module 1010 is further configured to send a first uplink channel or signal, where the first uplink channel or signal is used to request the network device to send a first downlink channel or signal on the first cell.

[0339] In some implementations, the first uplink channel or signal is used to request a network device to send a first downlink channel or signal on a first cell, including:

[0340] The first uplink channel or signal is used to request the network device to send a first downlink channel or signal on at least one cell among a plurality of cells, including the first cell.

[0341] In some implementations, the type of the first uplink channel or signal includes one or more of the following: SRS; PUCCH; PRACH.

[0342] In some implementations, the first uplink channel or signal is used to request a network device to send a first downlink channel or signal on a first cell, including:

[0343] The type of the first uplink channel or signal is a physical uplink shared channel PUSCH. The first uplink channel or signal carries a second MAC CE. The second MAC CE is used to request the network device to send the first downlink channel or signal on the first cell.

[0344] In some implementations, the first processing module 1120 is further configured to start or restart a second timer.

[0345] In some embodiments, the first processing module 1120 is configured to:

[0346] Starting or restarting the second timer from the end position of the last symbol of the first uplink channel or signal; or,

[0347] The second timer is started or restarted after the second time period starts from the end position of the last symbol of the first uplink channel or signal.

[0348] In some implementations, the second duration is predefined, or the second duration is configured by the network device.

[0349] In some implementations, the first transceiver module 1010 is further configured to:

[0350] receiving a first downlink channel or signal on the first cell within the validity period of the second timer; and / or,

[0351] A second downlink channel or signal is received within a valid period of the second timer, where the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell.

[0352] In some implementations, the first transceiver module 1010 is further configured to perform one of the following:

[0353] If the first downlink channel or signal is not received within the validity period of the second timer, the first uplink channel or signal is sent after the validity period of the second timer expires;

[0354] If the second downlink channel or signal is not received within the validity period of the second timer, the first uplink channel or signal is sent after the validity period of the second timer expires;

[0355] If the first downlink channel or signal is not received and the second downlink channel or signal is not received within the validity period of the second timer, the first uplink channel or signal is sent after the validity period of the second timer expires.

[0356] In some implementations, the first transceiver module 1010 is configured to send a first uplink channel or signal on the third cell.

[0357] In some implementations, the first transceiver module 1010 is further configured to receive first configuration information sent by a network device, where the first configuration information is used to configure resources of a first downlink channel or signal.

[0358] In some embodiments, the first configuration information is used to configure at least one of the following information: an identifier of the first cell, a first SSB set on the first cell, a time domain position of the first SSB set, a frequency domain position of the first SSB set, and a subcarrier spacing of the SSB on the first cell.

[0359] In some embodiments, the time domain position of the first SSB set includes at least one of the following: an SMTC window associated with the first SSB set, a period of the first SSB set, and an indication of the half-frame in which the first SSB set is located.

[0360] In some embodiments, the frequency domain position of the first SSB set includes an ARFCN value corresponding to the first SSB set.

[0361] In some embodiments, the first configuration information is used to configure at least one of the following information: identifiers of multiple cells, SSB sets on multiple cells, time domain positions of SSB sets on multiple cells, frequency domain positions of SSB sets on multiple cells, and subcarrier spacing of SSBs on multiple cells; wherein the multiple cells include the first cell.

[0362] In some implementations, the first transceiver module 1010 is further configured to receive second configuration information sent by a network device, where the second configuration information is used to configure resources of a second downlink channel or signal.

[0363] In some embodiments, the second configuration information is used to configure at least one of the following information:

[0364] The time domain position of the second downlink channel or signal;

[0365] The frequency domain position of the second downlink channel or signal;

[0366] When the type of the second downlink channel or signal is PDSCH, scheduling the time domain position and / or frequency domain position of the PDCCH of the second downlink channel or signal;

[0367] an association relationship between the second downlink channel or signal and the first cell;

[0368] First Timer;

[0369] The length of the first timer.

[0370] In some implementations, the first transceiver module 1010 is further configured to receive third configuration information sent by a network device, where the third configuration information is used to configure resources of the first uplink channel or signal.

[0371] In some embodiments, the third configuration information is used to configure at least one of the following information:

[0372] The time domain position of the first uplink channel or signal;

[0373] The frequency domain position of the first uplink channel or signal;

[0374] When the type of the first uplink channel or signal is PUSCH, the time domain position and / or frequency domain position of the PDCCH that schedules the first uplink channel or signal;

[0375] an association relationship between the first uplink channel or signal and the first cell;

[0376] Second timer;

[0377] The length of the second timer.

[0378] In some embodiments, the type of the first downlink channel or signal includes one or more of the following: SSB, SIB1, CSI-RS, TRS, and PRS.

[0379] The terminal device 1000 and the terminal device 1100 of the embodiment of the present application can implement the corresponding functions of the terminal device in the aforementioned method embodiment. The processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the terminal device 1000 and the terminal device 1100 can be found in the corresponding descriptions in the above-mentioned method embodiments, which will not be repeated here. It should be noted that the functions described in the various modules (sub-modules, units or components, etc.) in the terminal device 1000 and the terminal device 1100 of the embodiment of the application can be implemented by different modules (sub-modules, units or components, etc.) or by the same module (sub-module, unit or component, etc.).

[0380] FIG12 is a schematic block diagram of a network device 1200 according to an embodiment of the present application. The network device 1200 may include:

[0381] The second transceiver module 1210 is configured to send a first downlink channel or signal to a terminal device in the first cell.

[0382] In some embodiments, the second transceiver module 1210 is further configured to send a second downlink channel or signal to the terminal device, where the second downlink channel or signal is configured to instruct the network device whether to send the first downlink channel or signal on the first cell.

[0383] In some implementations, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0384] The second downlink channel or signal is used to instruct the network device to send the first downlink channel or signal on the first cell; and / or,

[0385] The second downlink channel or signal is used to instruct the network device not to send the first downlink channel or signal on the first cell.

[0386] In some implementations, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0387] The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on at least one cell among a plurality of cells, the plurality of cells including the first cell.

[0388] In some implementations, the second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including:

[0389] The second downlink channel or signal carries first indication information, and the first indication information is used to instruct the network device whether to send the first downlink channel or signal on the first cell.

[0390] In some implementations, the second downlink channel or signal is a physical downlink shared channel PDSCH, and the first indication information is a first MAC CE; or,

[0391] The second downlink channel or signal is a physical downlink control channel PDCCH, and the first indication information is first downlink control information DCI.

[0392] In some embodiments, the first MAC CE is used to indicate one or more of the following:

[0393] whether at least one of the plurality of cells is activated or deactivated;

[0394] whether a first downlink channel or signal is transmitted in at least one cell among the plurality of cells;

[0395] an index of a first downlink channel or signal sent on at least one cell among the plurality of cells;

[0396] Among them, the multiple cells include the first cell.

[0397] In some implementations, the first MAC CE corresponds to a first MAC CE format, and the first MAC CE format includes a first information field and a second information field, wherein:

[0398] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0399] The second information field is used to indicate whether the first downlink channel or signal is sent in at least one cell among the multiple cells.

[0400] In some implementations, the first MAC CE corresponds to a second MAC CE format, and the second MAC CE format includes a first information field and a second information field, wherein:

[0401] The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated;

[0402] The second information field is used to indicate whether at least one activated cell among the multiple cells transmits a first downlink channel or signal, and / or an index of the transmitted first downlink channel or signal.

[0403] In some embodiments, the second information field includes N rows of bits, where the N rows of bits correspond one-to-one to the N activated cells, where N is greater than or equal to 1, and each row of bits in the N rows of bits is used to indicate one of the following:

[0404] The index of the first downlink channel or signal sent;

[0405] The first downlink channel or signal is not sent.

[0406] In some embodiments, each row of bits in N rows of bits includes M bits, the M bits correspond one-to-one to the indexes of M first downlink channels or signals, and each of the M bits is used to indicate whether the network device sends the first downlink channel or signal of the corresponding index, and M is greater than or equal to 1.

[0407] In some implementations, the first MAC CE corresponds to a third MAC CE format, and the third MAC CE format includes a first information field, where the first information field is used to indicate one of the following:

[0408] whether at least one cell among the plurality of cells is activated or deactivated;

[0409] whether a first downlink channel or signal is transmitted in at least one cell among the plurality of cells;

[0410] Whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0411] In some implementations, the third MAC CE format further includes a second information field.

[0412] When the second information field indicates the first value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or,

[0413] When the second information field indicates the second value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0414] In some embodiments, when the terminal device is not configured with the second indication information or the second indication information configured on the terminal device indicates disabling, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or,

[0415] When the terminal device is configured with the second indication information or the second indication information configured on the terminal device indicates enable, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

[0416] In some implementations, the second transceiver module 1210 is configured to send a second downlink channel or signal on a second cell.

[0417] In some embodiments, the second transceiver module 1210 is further configured to receive a first uplink channel or signal from a terminal device, where the first uplink channel or signal is used to request the network device to send a first downlink channel or signal on the first cell.

[0418] In some implementations, the first uplink channel or signal is used to request a network device to send a first downlink channel or signal on a first cell, including:

[0419] The first uplink channel or signal is used to request the network device to send a first downlink channel or signal on at least one cell among a plurality of cells, including the first cell.

[0420] In some implementations, the type of the first uplink channel or signal includes one or more of the following: SRS; PUCCH; PRACH.

[0421] In some implementations, the first uplink channel or signal is used to request a network device to send a first downlink channel or signal on a first cell, including:

[0422] The type of the first uplink channel or signal is a physical uplink shared channel PUSCH. The first uplink channel or signal carries a second MAC CE. The second MAC CE is used to request the network device to send the first downlink channel or signal on the first cell.

[0423] In some implementations, the second transceiver module 1210 is configured to receive a first uplink channel or signal on a third cell.

[0424] In some implementations, the second transceiver module 1210 is further configured to send first configuration information to the terminal device, where the first configuration information is used to configure resources of a first downlink channel or signal.

[0425] In some embodiments, the first configuration information is used to configure at least one of the following information: an identifier of the first cell, a first SSB set on the first cell, a time domain position of the first SSB set, a frequency domain position of the first SSB set, and a subcarrier spacing of the SSB on the first cell.

[0426] In some embodiments, the time domain position of the first SSB set includes at least one of the following: an SMTC window associated with the first SSB set, a period of the first SSB set, and an indication of the half-frame in which the first SSB set is located.

[0427] In some embodiments, the frequency domain position of the first SSB set includes an ARFCN value corresponding to the first SSB set.

[0428] In some embodiments, the first configuration information is used to configure at least one of the following information: identifiers of multiple cells, SSB sets on multiple cells, time domain positions of SSB sets on multiple cells, frequency domain positions of SSB sets on multiple cells, and subcarrier spacing of SSBs on multiple cells; wherein the multiple cells include the first cell.

[0429] In some implementations, the second transceiver module 1210 is further configured to send second configuration information to the terminal device, where the second configuration information is used to configure resources of a second downlink channel or signal.

[0430] In some embodiments, the second configuration information is used to configure at least one of the following information:

[0431] The time domain position of the second downlink channel or signal;

[0432] The frequency domain position of the second downlink channel or signal;

[0433] When the type of the second downlink channel or signal is PDSCH, scheduling the time domain position and / or frequency domain position of the PDCCH of the second downlink channel or signal;

[0434] an association relationship between the second downlink channel or signal and the first cell;

[0435] First Timer;

[0436] The length of the first timer.

[0437] In some implementations, the second transceiver module 1210 is further configured to send third configuration information to the terminal device, where the third configuration information is used to configure resources of the first uplink channel or signal.

[0438] In some embodiments, the third configuration information is used to configure at least one of the following information:

[0439] The time domain position of the first uplink channel or signal;

[0440] The frequency domain position of the first uplink channel or signal;

[0441] When the type of the first uplink channel or signal is PUSCH, the time domain position and / or frequency domain position of the PDCCH that schedules the first uplink channel or signal;

[0442] an association relationship between the first uplink channel or signal and the first cell;

[0443] Second timer;

[0444] The length of the second timer.

[0445] In some embodiments, the type of the first downlink channel or signal includes one or more of the following: SSB, SIB1, CSI-RS, TRS, and PRS.

[0446] The network device 1200 of the embodiment of the present application can implement the corresponding functions of the network device in the aforementioned method embodiment. The processes, functions, implementation methods and beneficial effects corresponding to each module (sub-module, unit or component, etc.) in the network device 1200 can be found in the corresponding description in the above method embodiment, and will not be repeated here. It should be noted that the functions described in the various modules (sub-module, unit or component, etc.) in the network device 1200 of the embodiment of the application can be implemented by different modules (sub-module, unit or component, etc.) or by the same module (sub-module, unit or component, etc.).

[0447] Figure 13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application. The communication device 1300 includes a processor 1310, which can call and execute a computer program from a memory to enable the communication device 1300 to implement the method in the embodiment of the present application.

[0448] In one embodiment, the communication device 1300 may further include a memory 1320. The processor 1310 may call and execute a computer program from the memory 1320 to enable the communication device 1300 to implement the method in the embodiment of the present application.

[0449] The memory 1320 may be a separate device independent of the processor 1310 , or may be integrated into the processor 1310 .

[0450] In one embodiment, the communication device 1300 may further include a transceiver 1330 , and the processor 1310 may control the transceiver 1330 to communicate with other devices. Specifically, the transceiver 1330 may send information or data to other devices, or receive information or data sent by other devices.

[0451] The transceiver 1330 may include a transmitter and a receiver. The transceiver 1330 may further include an antenna, and the number of antennas may be one or more.

[0452] In one embodiment, the communication device 1300 may be a network device of an embodiment of the present application, and the communication device 1300 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0453] In one embodiment, the communication device 1300 may be a terminal device of an embodiment of the present application, and the communication device 1300 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0454] 14 is a schematic structural diagram of a chip 1400 according to an embodiment of the present application. The chip 1400 includes a processor 1410, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

[0455] In one embodiment, the chip 1400 may further include a memory 1420. The processor 1410 may call and execute a computer program from the memory 1420 to implement the method executed by the terminal device or the network device in the embodiment of the present application.

[0456] The memory 1420 may be a separate device independent of the processor 1410 , or may be integrated into the processor 1410 .

[0457] In one embodiment, the chip 1400 may further include an input interface 1430. The processor 1410 may control the input interface 1430 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0458] In one embodiment, the chip 1400 may further include an output interface 1440. The processor 1410 may control the output interface 1440 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0459] In one embodiment, 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.

[0460] In one embodiment, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0461] The chips used in the network device and the terminal device may be the same chip or different chips.

[0462] 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.

[0463] 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. The general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0464] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM).

[0465] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0466] FIG15 is a schematic block diagram of a communication system 1500 according to an embodiment of the present application. The communication system 1500 includes a terminal device 1510 and a network device 1520 .

[0467] The terminal device 1510 is configured to receive a first downlink channel or signal sent by a network device on a first cell;

[0468] The network device 1520 is configured to send a first downlink channel or signal to the terminal device in the first cell.

[0469] The terminal device 1510 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1520 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not described here in detail.

[0470] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, 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 instructions are loaded and executed on a computer, the process or function in accordance with 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 instructions 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 instructions can be transmitted from a website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, 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 or data center that includes 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)).

[0471] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. 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 embodiments of the present application.

[0472] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0473] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: The method comprises: The terminal device receives a first downlink channel or signal sent by the network device in the first cell.

2. The method according to claim 1, characterized in that The method further comprises: The terminal device receives a second downlink channel or signal, where the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell.

3. The method according to claim 2, characterized in that The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including: The second downlink channel or signal is used to instruct the network device to send the first downlink channel or signal on the first cell; and / or, The second downlink channel or signal is used to instruct the network device not to send the first downlink channel or signal on the first cell.

4. The method according to claim 2 or 3, characterized in that The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including: The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on at least one cell among a plurality of cells, wherein the plurality of cells include the first cell.

5. The method according to any one of claims 2 to 4, characterized in that The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including: The second downlink channel or signal carries first indication information, and the first indication information is used to indicate whether the network device sends the first downlink channel or signal on the first cell.

6. The method according to claim 5, characterized in that The second downlink channel or signal is a physical downlink shared channel PDSCH, and the first indication information is a first media access control MAC control element CE; or, The second downlink channel or signal is a physical downlink control channel PDCCH, and the first indication information is first downlink control information DCI.

7. The method according to claim 6, characterized in that The first MAC CE is used to indicate one or more of the following: whether at least one of the plurality of cells is activated or deactivated; whether the first downlink channel or signal is transmitted in at least one cell among the plurality of cells; an index of the first downlink channel or signal sent on at least one cell among the plurality of cells; Among them, the multiple cells include the first cell.

8. The method according to claim 7, characterized in that The first MAC CE corresponds to a first MAC CE format, and the first MAC CE format includes a first information field and a second information field, wherein: The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; The second information field is used to indicate whether the first downlink channel or signal is sent in at least one cell among the multiple cells.

9. The method according to claim 7, characterized in that The first MAC CE corresponds to a second MAC CE format, and the second MAC CE format includes a first information field and a second information field, wherein: The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; The second information field is used to indicate whether at least one activated cell among the multiple cells transmits the first downlink channel or signal, and / or the index of the transmitted first downlink channel or signal.

10. The method according to claim 9, characterized in that The second information field includes N rows of bits, where the N rows of bits correspond one-to-one to the N activated cells, where N is greater than or equal to 1, and each row of bits in the N rows of bits is used to indicate one of the following: an index of the first downlink channel or signal sent; The first downlink channel or signal is not sent.

11. The method according to claim 10, characterized in that Each row of bits in the N rows of bits includes M bits, and the M bits correspond one-to-one to the indexes of the M first downlink channels or signals. Each bit in the M bits is used to indicate whether the network device sends the first downlink channel or signal with the corresponding index, and M is greater than or equal to 1.

12. The method according to claim 7, characterized in that The first MAC CE corresponds to a third MAC CE format, and the third MAC CE format includes a first information field, where the first information field is used to indicate one of the following: whether at least one cell among the plurality of cells is activated or deactivated; whether the first downlink channel or signal is transmitted in at least one cell among the multiple cells; Whether at least one of the multiple cells is activated or deactivated, wherein the first downlink signal is sent on the activated cell Road or signal.

13. The method according to claim 12, characterized in that The third MAC CE format also includes a second information field, When the second information field indicates the first value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or, When the second information field indicates the second value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

14. The method according to claim 12, characterized in that When the terminal device is not configured with the second indication information or the second indication information configured on the terminal device indicates disabling, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or, When the terminal device is configured with the second indication information or the second indication information configured on the terminal device indicates enable, the first information field is used to indicate whether at least one of the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

15. The method according to any one of claims 2 to 14, characterized in that The method further comprises: The terminal device starts or restarts the first timer.

16. The method according to claim 15, characterized in that The terminal device starts or restarts the first timer, including: The terminal device starts or restarts the first timer from the end position of the last symbol of the second downlink channel or signal; or, The terminal device starts or restarts the first timer from the end position of the last symbol of the control resource set CORESET to which the second downlink channel or signal belongs; or, The terminal device starts or restarts the first timer from the time when the first MAC CE carried by the second downlink channel or signal takes effect; or, The terminal device starts or restarts the first timer from the end position of the last symbol of the second downlink channel or signal and after a first time period has passed; or, The terminal device starts or restarts the first timer from the end position of the last symbol of the CORESET to which the second downlink channel or signal belongs and after a first time period has passed; or, The terminal device starts or restarts the first timer from the effective time of the first MAC CE carried by the second downlink channel or signal and after a first time period.

17. The method according to claim 16, characterized in that The first duration is predefined, or the first duration is configured by the network device.

18. The method according to any one of claims 15 to 17, characterized in that The terminal device receiving, on the first cell, a first downlink channel or signal sent by a network device, comprising: The terminal device receives the first downlink channel or signal on the first cell within the validity period of the first timer.

19. The method according to any one of claims 15 to 18, characterized in that The method further comprises: The terminal device receives the second downlink channel or signal after the validity period of the first timer expires.

20. The method according to any one of claims 2 to 19, characterized in that The terminal device receives a second downlink channel or signal, including: The terminal device receives the second downlink channel or signal on the second cell.

21. The method according to any one of claims 1 to 20, characterized in that Before the terminal device receives the first downlink channel or signal on the first cell, the method further includes: The terminal device sends a first uplink channel or signal, where the first uplink channel or signal is used to request the network device to send the first downlink channel or signal on the first cell.

22. The method according to claim 21, characterized in that The first uplink channel or signal is used to request the network device to send the first downlink channel or signal on the first cell, including: The first uplink channel or signal is used to request the network device to send the first downlink channel or signal on at least one cell among a plurality of cells, including the first cell.

23. The method according to claim 21 or 22, characterized in that The type of the first uplink channel or signal includes one or more of the following: Physical uplink shared channel PUSCH; Sounding reference signal SRS; Physical uplink control channel PUCCH; Physical Random Access Channel PRACH.

24. The method according to claim 21 or 22, characterized in that The first uplink channel or signal is used to request a network device to send the first downlink channel or signal on the first cell, including: The type of the first uplink channel or signal is a physical uplink shared channel PUSCH. The first uplink channel or signal carries a second MAC CE. The second MAC CE is used to request the network device to send the first downlink channel or signal on the first cell.

25. The method according to any one of claims 21 to 24, characterized in that The method further comprises: The terminal device starts or restarts the second timer.

26. The method according to claim 25, characterized in that The terminal device starts or restarts the second timer, including: The terminal device starts or restarts the second timer from the end position of the last symbol of the first uplink channel or signal; or, The terminal device starts or restarts the second timer from the end position of the last symbol of the first uplink channel or signal and after a second period of time.

27. The method according to claim 26, characterized in that The second duration is predefined, or the second duration is configured by the network device.

28. The method according to any one of claims 25 to 27, characterized in that The method further comprises: The terminal device receives the first downlink channel or signal on the first cell within the validity period of the second timer; and / or, The terminal device receives a second downlink channel or signal within the validity period of the second timer, and the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell.

29. The method according to claim 28, characterized in that The method further comprises one of the following: If the terminal device does not receive the first downlink channel or signal within the validity period of the second timer, the terminal device sends the first uplink channel or signal after the validity period of the second timer expires; If the terminal device does not receive the second downlink channel or signal within the validity period of the second timer, the terminal device sends the first uplink channel or signal after the validity period of the second timer expires; If the terminal device does not receive the first downlink channel or signal and does not receive the second downlink channel or signal within the validity period of the second timer, the terminal device sends the first uplink channel or signal after the validity period of the second timer expires.

30. The method according to any one of claims 21 to 29, characterized in that The terminal device sends a first uplink channel or signal, including: The terminal device sends the first uplink channel or signal on the third cell.

31. The method according to any one of claims 1 to 30, characterized in that The method further comprises: The terminal device receives first configuration information sent by the network device, where the first configuration information is used to configure resources of the first downlink channel or signal.

32. The method according to claim 31, characterized in that The first configuration information is used to configure at least one of the following information: the identifier of the first cell, the first synchronization signal block SSB set on the first cell, the time domain position of the first SSB set, the frequency domain position of the first SSB set, and the subcarrier spacing of the SSB on the first cell.

33. The method according to claim 32, characterized in that The time domain position of the first SSB set includes at least one of the following: the SSB measurement timing configuration SMTC window associated with the first SSB set, the period of the first SSB set, and the half-frame indication where the first SSB set is located.

34. The method according to claim 32 or 33, characterized in that The frequency domain position of the first SSB set includes the absolute radio frequency channel number ARFCN value corresponding to the first SSB set.

35. The method according to claim 31, wherein The first configuration information is used to configure at least one of the following information: identifiers of multiple cells, SSB sets on multiple cells, time domain positions of SSB sets on multiple cells, frequency domain positions of SSB sets on multiple cells, and subcarrier spacing of SSBs on multiple cells; wherein the multiple cells include the first cell.

36. The method according to any one of claims 2 to 20, characterized in that The method further comprises: The terminal device receives second configuration information sent by the network device, where the second configuration information is used to configure resources of the second downlink channel or signal.

37. The method according to claim 36, wherein The second configuration information is used to configure at least one of the following information: the time domain position of the second downlink channel or signal; a frequency domain position of the second downlink channel or signal; When the type of the second downlink channel or signal is PDSCH, the time domain of the PDCCH that schedules the second downlink channel or signal Position and / or frequency domain location; an association relationship between the second downlink channel or signal and the first cell; First Timer; The length of the first timer.

38. The method according to any one of claims 21 to 30, characterized in that The method further comprises: The terminal device receives third configuration information sent by the network device, where the third configuration information is used to configure resources of the first uplink channel or signal.

39. The method according to claim 38, characterized in that The third configuration information is used to configure at least one of the following information: The time domain position of the first uplink channel or signal; The frequency domain position of the first uplink channel or signal; When the type of the first uplink channel or signal is PUSCH, the time domain position and / or frequency domain position of the PDCCH that schedules the first uplink channel or signal; an association relationship between the first uplink channel or signal and the first cell; Second timer; The length of the second timer.

40. The method according to any one of claims 1 to 39, characterized in that The type of the first downlink channel or signal includes one or more of the following: SSB, system message block SIB1, channel state information-reference signal CSI-RS, tracking reference signal TRS and positioning reference signal PRS.

41. A wireless communication method, characterized in that: The method comprises: The network device sends a first downlink channel or signal to the terminal device in the first cell.

42. The method according to claim 41, wherein The method further comprises: The network device sends a second downlink channel or signal to the terminal device, where the second downlink channel or signal is used to indicate whether the network device sends the first downlink channel or signal on the first cell.

43. The method according to claim 42, characterized in that The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including: The second downlink channel or signal is used to instruct the network device to send the first downlink channel or signal on the first cell; and / or, The second downlink channel or signal is used to instruct the network device not to send the first downlink channel or signal on the first cell.

44. The method according to claim 42 or 43, characterized in that The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including: The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on at least one cell among a plurality of cells, wherein the plurality of cells include the first cell.

45. The method according to any one of claims 42 to 44, characterized in that The second downlink channel or signal is used to instruct the network device whether to send the first downlink channel or signal on the first cell, including: The second downlink channel or signal carries first indication information, and the first indication information is used to indicate whether the network device sends the first downlink channel or signal on the first cell.

46. The method according to claim 45, characterized in that The second downlink channel or signal is a physical downlink shared channel PDSCH, and the first indication information is a first MAC CE; or, The second downlink channel or signal is a physical downlink control channel PDCCH, and the first indication information is first downlink control information DCI.

47. The method according to claim 46, wherein The first MAC CE is used to indicate one or more of the following: whether at least one of the plurality of cells is activated or deactivated; whether the first downlink channel or signal is transmitted in at least one cell among the plurality of cells; an index of the first downlink channel or signal sent on at least one cell among the plurality of cells; Among them, the multiple cells include the first cell.

48. The method according to claim 47, wherein The first MAC CE corresponds to a first MAC CE format, and the first MAC CE format includes a first information field and a second information field, wherein: The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; The second information field is used to indicate whether the first downlink channel or signal is sent in at least one cell among the multiple cells.

49. The method according to claim 47, wherein The first MAC CE corresponds to a second MAC CE format, and the second MAC CE format includes a first information field and a second information field, wherein: The first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; The second information field is used to indicate whether at least one activated cell among the multiple cells transmits the first downlink channel or signal, and / or the index of the transmitted first downlink channel or signal.

50. The method according to claim 49, wherein The second information field includes N rows of bits, where the N rows of bits correspond one-to-one to the N activated cells, where N is greater than or equal to 1, and each row of bits in the N rows of bits is used to indicate one of the following: an index of the first downlink channel or signal sent; The first downlink channel or signal is not sent.

51. The method according to claim 50, characterized in that Each row of bits in the N rows of bits includes M bits, and the M bits correspond one-to-one to the indexes of the M first downlink channels or signals. Each bit in the M bits is used to indicate whether the network device sends the first downlink channel or signal with the corresponding index, and M is greater than or equal to 1.

52. The method according to claim 47, wherein The first MAC CE corresponds to a third MAC CE format, and the third MAC CE format includes a first information field, where the first information field is used to indicate one of the following: whether at least one cell among the plurality of cells is activated or deactivated; whether the first downlink channel or signal is transmitted in at least one cell among the multiple cells; Whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

53. The method according to claim 52, characterized in that The third MAC CE format also includes a second information field, When the second information field indicates the first value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or, When the second information field indicates the second value, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

54. The method according to claim 52, wherein When the terminal device is not configured with the second indication information or the second indication information configured on the terminal device indicates disabling, the first information field is used to indicate whether at least one cell among the multiple cells is activated or deactivated; and / or, When the terminal device is configured with the second indication information or the second indication information configured on the terminal device indicates enable, the first information field is used to indicate whether at least one of the multiple cells is activated or deactivated, wherein the first downlink channel or signal is sent on the activated cell.

55. The method according to any one of claims 42 to 54, characterized in that The network device sending a second downlink channel or signal to the terminal device includes: The network device sends the second downlink channel or signal on the second cell.

56. The method according to any one of claims 41 to 55, characterized in that Before the network device sends the first downlink channel or signal on the first cell, the method further includes: The network device receives a first uplink channel or signal from the terminal device, where the first uplink channel or signal is used to request the network device to send the first downlink channel or signal on the first cell.

57. The method according to claim 56, characterized in that The first uplink channel or signal is used to request the network device to send the first downlink channel or signal on the first cell, including: The first uplink channel or signal is used to request the network device to send the first downlink channel or signal on at least one cell among a plurality of cells, including the first cell.

58. The method according to claim 56 or 57, characterized in that The type of the first uplink channel or signal includes one or more of the following: PUSCH; SRS; PUCCH; PRACH.

59. The method according to claim 56 or 57, characterized in that The first uplink channel or signal is used to request a network device to send the first downlink channel or signal on the first cell, including: The type of the first uplink channel or signal is a physical uplink shared channel PUSCH, the first uplink channel or signal carries a second MAC CE, and the second MAC CE is used to request the network device to send the first downlink channel or signal on the first cell. Number.

60. The method according to any one of claims 56 to 59, characterized in that The network device receives a first uplink channel or signal from the terminal device, including: The network device receives the first uplink channel or signal on a third cell.

61. The method according to any one of claims 41 to 60, characterized in that The method further comprises: The network device sends first configuration information to the terminal device, where the first configuration information is used to configure resources of the first downlink channel or signal.

62. The method according to claim 61, characterized in that The first configuration information is used to configure at least one of the following information: the identifier of the first cell, the first SSB set on the first cell, the time domain position of the first SSB set, the frequency domain position of the first SSB set, and the subcarrier spacing of the SSB on the first cell.

63. The method according to claim 62, characterized in that The time domain position of the first SSB set includes at least one of the following: the SMTC window associated with the first SSB set, the period of the first SSB set, and the half-frame indication where the first SSB set is located.

64. The method according to claim 62 or 63, characterized in that The frequency domain position of the first SSB set includes the ARFCN value corresponding to the first SSB set.

65. The method according to claim 61, wherein The first configuration information is used to configure at least one of the following information: identifiers of multiple cells, SSB sets on multiple cells, time domain positions of SSB sets on multiple cells, frequency domain positions of SSB sets on multiple cells, and subcarrier spacing of SSBs on multiple cells; wherein the multiple cells include the first cell.

66. The method according to any one of claims 42 to 55, characterized in that The method further comprises: The network device sends second configuration information to the terminal device, where the second configuration information is used to configure resources of the second downlink channel or signal.

67. The method according to claim 66, characterized in that The second configuration information is used to configure at least one of the following information: the time domain position of the second downlink channel or signal; a frequency domain position of the second downlink channel or signal; When the type of the second downlink channel or signal is PDSCH, scheduling the time domain position and / or frequency domain position of the PDCCH of the second downlink channel or signal; an association relationship between the second downlink channel or signal and the first cell; First Timer; The length of the first timer.

68. The method according to any one of claims 56 to 60, characterized in that The method further comprises: The network device sends third configuration information to the terminal device, where the third configuration information is used to configure resources of the first uplink channel or signal.

69. The method according to claim 68, characterized in that The third configuration information is used to configure at least one of the following information: The time domain position of the first uplink channel or signal; The frequency domain position of the first uplink channel or signal; When the type of the first uplink channel or signal is PUSCH, the time domain position and / or frequency domain position of the PDCCH that schedules the first uplink channel or signal; an association relationship between the first uplink channel or signal and the first cell; Second timer; The length of the second timer.

70. The method according to any one of claims 41 to 69, characterized in that The type of the first downlink channel or signal includes one or more of the following: SSB, SIB1, CSI-RS, TRS and PRS.

71. A terminal device comprising: The first transceiver module is configured to receive a first downlink channel or signal sent by a network device in a first cell.

72. A network device comprising: The second transceiver module is used to send a first downlink channel or signal to the terminal device on the first cell.

73. A terminal device comprising: A transceiver, a processor and a memory, wherein the memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to call and run the computer program stored in the memory so that the terminal device executes the method as described in any one of claims 1 to 40.

74. A network device comprising: A transceiver, a processor and a memory, wherein the memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to call and run the computer program stored in the memory so that the network device executes the method as described in any one of claims 41 to 70.

75. A chip comprising: A processor, configured to call and execute a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 40 or 41 to 70.

76. A computer-readable storage medium for storing a computer program, which, when executed by a device, causes the device to perform the method according to any one of claims 1 to 40 or 41 to 70.

77. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 40 or 41 to 70.

78. A computer program causing a computer to perform the method of any one of claims 1 to 40 or 41 to 70.

79. A communication system comprising: A terminal device, configured to execute the method according to any one of claims 1 to 40; A network device, configured to execute the method according to any one of claims 41 to 70.

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