Wireless communication method, terminal device and network device

Abstract

Provided are a wireless communication method, a terminal device and a network device. The method comprises: receiving a first downlink channel or signal by means of a first downlink frequency-domain unit set of a first cell; and / or sending a first uplink channel or signal by means of a first uplink frequency-domain unit set of the first cell, wherein the first downlink channel or signal comprises a common downlink channel or signal of the first cell. In the embodiments of the present application, the first downlink channel or signal is transmitted in the first downlink frequency-domain unit set, and / or the first uplink channel or signal is sent in the first uplink frequency-domain unit set, thereby improving the flexibility of transmitting the first downlink channel or signal and the first uplink channel or signal.

Description

Wireless communication methods, terminal equipment and network equipment Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to wireless communication methods, terminal devices, and network devices. Background Technology

[0002] In traditional networks, the "always-on" common channels or signals or periodically configured common channel or signal resources in the first cell, as well as UE-specific channels or signals carrying UE-specific information, can be transmitted through the same spectrum resources, resulting in high power consumption for network devices. Therefore, it is necessary to optimize the transmission method of common channels or signals. Summary of the Invention

[0003] This application provides a wireless communication method, terminal device, and network device. The various aspects covered by this application are described below.

[0004] In a first aspect, a wireless communication method is provided, the method being executed by a terminal device, the method comprising: receiving a first downlink channel or signal through a first downlink frequency domain unit set of a first cell; and / or transmitting a first uplink channel or signal through a first uplink frequency domain unit set of the first cell; wherein the first downlink channel or signal includes a common downlink channel or signal of the first cell.

[0005] In a second aspect, a wireless communication method is provided, the method being performed by a network device, the method comprising: transmitting a first downlink channel or signal through a first downlink frequency domain unit set of a first cell; and / or receiving a first uplink channel or signal through a first uplink frequency domain unit set of the first cell; wherein the first downlink channel or signal includes a common downlink channel or signal of the first cell.

[0006] Thirdly, a terminal device is provided, comprising: a receiving unit for receiving a first downlink channel or signal through a first downlink frequency domain unit set of a first cell; and / or a transmitting unit for transmitting a first uplink channel or signal through a first uplink frequency domain unit set of the first cell; wherein the first downlink channel or signal includes a common downlink channel or signal of the first cell.

[0007] Fourthly, a network device is provided, comprising: a transmitting unit for transmitting a first downlink channel or signal through a first downlink frequency domain unit set of a first cell; and / or a receiving unit for receiving a first uplink channel or signal through a first uplink frequency domain unit set of the first cell; wherein the first downlink channel or signal includes a common downlink channel or signal of the first cell.

[0008] Fifthly, a terminal device is provided, including a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory, causing the terminal device to perform some or all of the steps in the network device of the first aspect.

[0009] In a sixth aspect, a network device is provided, including a processor, a memory, and a transceiver, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory to cause the network device to perform some or all of the steps in the network device of the second aspect.

[0010] Seventhly, embodiments of this application provide a communication system including the aforementioned terminal device and / or network device. In another possible design, the system may further include other devices that interact with the terminal device or network device as described in the embodiments of this application.

[0011] Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program that causes a communication device (e.g., a terminal device or a network device) to perform some or all of the steps in the network device described in the above aspects.

[0012] Ninthly, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a communication device (e.g., a terminal device or a network device) to perform some or all of the steps of the network device described in the above aspects. In some implementations, the computer program product may be a software installation package.

[0013] In a tenth aspect, embodiments of this application provide a chip including a memory and a processor, the processor being able to call and run a computer program from the memory to implement some or all of the steps described in the network devices of the above aspects.

[0014] In the embodiments of this application, a first downlink channel or signal is transmitted in the first downlink frequency domain unit set, and / or a first uplink channel or signal is transmitted in the first uplink frequency domain unit set, so as to improve the flexibility of transmitting the first downlink channel or signal and the first uplink channel or signal. Attached Figure Description

[0015] Figure 1 shows a wireless communication system 100 used in an embodiment of this application.

[0016] Figure 2 is a schematic diagram of a spectrum block resource with multiple fragments.

[0017] Figure 3 is a schematic flowchart of a wireless communication method according to an embodiment of this application.

[0018] Figures 4A and 4B are schematic diagrams illustrating the relationship between the first downlink frequency domain cell set and the second downlink frequency domain cell set in the first cell of this application embodiment.

[0019] Figures 5 to 7 illustrate the positional relationship between the first downlink frequency domain unit set of the first cell and the first downlink frequency domain unit set of the second cell in the embodiments of this application.

[0020] Figure 8 is a schematic diagram of a scheme for transmitting the first downlink channel or signal in the first cell and the second cell in an embodiment of this application.

[0021] Figure 9 is a schematic diagram of a scheme for transmitting a first downlink channel or signal in a first cell and a second cell in another embodiment of this application.

[0022] Figure 10 is a schematic diagram of a scheme for receiving a second downlink channel or signal through a target downlink frequency domain unit set when the first uplink channel or signal of the first cell in an embodiment of this application includes an uplink wake-up signal (UL WUS).

[0023] Figure 11 is a schematic diagram of the scheme for determining the target downlink frequency domain unit set based on the first indication information in an embodiment of this application when the first indication information is configured.

[0024] Figure 12 is a schematic diagram of a random access scheme according to an embodiment of this application.

[0025] Figure 13 is a schematic diagram of a random access scheme according to another embodiment of this application.

[0026] Figure 14 is a schematic diagram of a terminal device according to an embodiment of this application.

[0027] Figure 15 is a schematic diagram of a network device according to an embodiment of this application.

[0028] Figure 16 is a schematic structural diagram of a communication device according to an embodiment of this application. Detailed Implementation

[0029] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0030] Figure 1 illustrates a wireless communication system 100 according to an embodiment of this application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographical area and may communicate with the terminal device 120 located within that coverage area.

[0031] Figure 1 illustrates an exemplary network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices, and each network device may include other terminal devices within its coverage area. This application embodiment does not limit this.

[0032] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0033] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems, satellite communication systems, and so on.

[0034] The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal devices in the embodiments of this application can be mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, self-driving, remote medical surgery, smart grids, transportation safety, smart cities, and smart homes, etc. Optionally, the UE can act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in V2X or D2D, etc. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0035] The network device in this application embodiment can be a device for communicating with a terminal device. This network device can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, auxiliary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0036] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0037] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0038] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0039] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0040] Network energy saving and terminal energy saving

[0041] Network energy saving is crucial for environmental sustainability, reducing environmental impact (such as greenhouse gas emissions), and saving operating costs. With the increasing prevalence of 5G and future wireless communication systems across various industries and geographic regions, the need to support very high data transmission rates to handle more advanced services and applications (such as extended reality (XR)) necessitates denser network deployments, utilizing more antennas, greater bandwidth, and more frequency bands. Considering the environmental impact of 5G and future wireless communication systems, controlled solutions need to be developed to enhance network energy efficiency.

[0042] Energy consumption has become a critical component of operators' operational expenditure (OPEX). According to a GSMA report, energy costs for mobile networks account for approximately 23% of total OPEX. Most energy consumption originates from the radio access network, specifically from active antenna units (AAUs), with data centers and fiber optic transmission accounting for a smaller share. The power consumption of a single radio access session can be divided into two parts: the dynamic part includes power consumption only when data is being transmitted or received; the static part includes power consumption at all times necessary for maintaining the necessary operation of the radio access equipment, including power consumption when no data is being transmitted or received. While improving transmission energy efficiency, networks also need to ensure low data latency and high throughput performance for terminals; therefore, energy-saving technologies should not significantly reduce terminal performance indicators.

[0043] Terminal energy consumption is also a crucial performance indicator in communication systems. The need for terminal power saving involves two aspects: efficient data transmission when data is being transmitted, and the ability to quickly transition to an extremely low-power state when no data is being transmitted. Terminal power saving is achieved by switching between various power consumption states, which can be initiated by the network. When data service is available, the terminal needs to be quickly "wake up" by the network and efficiently transmit data using appropriate resources. When no data service is available, the terminal must promptly enter a low-power state. While improving transmission efficiency, the terminal still needs to maintain low data latency and high throughput performance; therefore, the energy-saving technologies employed must not significantly degrade network performance indicators.

[0044] With the development of communication technology and the evolution of communication systems, energy consumption has gradually become a crucial KPI for the operational efficiency of communication systems. Therefore, when designing future wireless communication systems, such as 6G systems, energy-saving technologies need to be considered from the very first version. When considering energy-saving technologies, network equipment and terminal equipment can be combined to align their behaviors as much as possible. This approach aims to maximize network energy savings while minimizing the impact on the complexity, power, and latency of terminal equipment, thus designing a communication system that balances network and terminal energy efficiency.

[0045] Transmission of always-on channels or signals in NR systems

[0046] In NR systems, downlink common channels or signals, such as synchronization signal / PBCH blocks (SSB or SS / PBCH blocks), system information blocks (SIBs) 1, and paging messages, are transmitted periodically, while uplink common channel or signal resources, such as random access opportunities (RO) resources, are reserved periodically. The length of the period is configured by network devices through higher-layer parameters. The initial access process of a terminal device can be completed by receiving downlink common channels or signals and sending uplink transmissions on uplink common channel or signal resources. Specifically, the terminal device obtains the common configuration information of the serving cell by detecting and receiving SSBs and SIBs 1, and then listens for paging messages and initiates a random access process based on this common configuration information.

[0047] From the perspective of network devices, once a common channel or signal is configured, its resources will be periodically occupied regardless of whether terminal devices in the network require them. For example, network devices may transmit downlink common channels or signals, while uplink common channels or signals may be reserved for terminal devices to initiate random access. These common channels or signals can be considered always-on channels or signals.

[0048] Fragmented spectrum aggregation

[0049] In low-frequency bands of different countries or regions, there are multiple fragmented spectrum blocks, as shown in Figure 2. Each fragmented spectrum block can be 5MHz in size and is used by operators 1 to 4. Each fragmented spectrum block can be regarded as a component carrier (CC), that is, one CC corresponds to a continuous spectrum resource.

[0050] In NR system deployment, each CC (Carrier Array) is deployed as a cell. In NR systems, the number of radio frequency chains (RF chains) supported by a UE is limited and unlikely to increase significantly. Since each CC requires an independent RF link, the UE's data transmission rate is limited by the number of CCs supporting carrier aggregation (CA). To utilize the spectrum resources of multiple fragments in low-frequency bands, NR systems have begun to explore the scenario of multiple carriers sharing a single RF link. For example, for multiple CCs in a single downlink band with a frequency range less than or equal to 100MHz, RF link sharing can be used for data transmission. This allows the UE to support data transmission with the same bandwidth as before using fewer RF links, thereby enabling the UE to support data transmission with a larger bandwidth without increasing the number of RF links, thus improving the data transmission rate. When designing future wireless communication systems, such as 6G systems, it is also necessary to consider the fragment spectrum aggregation feature to design wireless communication systems that rationally utilize this spectrum aggregation characteristic.

[0051] In traditional schemes, the transmission of the first downlink channel or signal and the first uplink channel or signal in the first cell is not flexible enough, whereby the first downlink channel or signal includes a common downlink channel or signal. Therefore, to address the above problems, embodiments of this application propose transmitting the first downlink channel or signal in the first downlink frequency domain unit set, and / or transmitting the first uplink channel or signal in the first uplink frequency domain unit set, thereby improving the flexibility of transmitting the first downlink channel or signal and the first uplink channel or signal.

[0052] It should be understood that the technical solutions provided in the embodiments of this application can be applied to a scenario where a cell includes multiple CCs, or to a scenario where a cell includes one CC.

[0053] The wireless communication method of this application embodiment is described below with reference to FIG3, wherein the method shown in FIG3 is described from the perspective of the interaction between the terminal device and the network device. The method shown in FIG3 includes step S310 and / or step S320.

[0054] In step S310, the network device sends a first downlink channel or signal to the terminal device through the first downlink frequency domain unit set of the first cell. Correspondingly, the terminal device receives the first downlink channel or signal through the first downlink frequency domain unit set of the first cell. The first downlink channel or signal includes the common downlink channel or signal of the first cell.

[0055] In step S320, the terminal device sends a first uplink channel or signal to the network device through the first uplink frequency domain unit set of the first cell; correspondingly, the network device receives the first uplink channel or signal through the first uplink frequency domain unit set of the first cell.

[0056] In some implementations, the first downlink channel or signal (or the common downlink channel or signal of the first cell) includes at least one of the following: a synchronization signal (e.g., a primary synchronization signal (PSS) and / or a secondary synchronization signal (SSS)); an SSB; a physical broadcast channel (PBCH) carrying system messages; a physical downlink shared channel (PDSCH) carrying system messages; a physical downlink control channel (PDCCH) scheduling a PDSCH carrying system messages; a PDSCH carrying paging messages; a PDCCH scheduling a PDSCH carrying paging messages; a downlink channel or signal carrying system message change indication information or indication information on whether to receive system messages; a downlink channel or signal carrying indication information on whether to receive paging messages; and a downlink channel or signal carrying indication information on whether to receive an SSB.

[0057] In some implementations, the first downlink channel or signal is used to determine at least one of the following: the cell identifier of the first cell; the cell synchronization information of the first cell; the system configuration information of the first cell; the paging configuration information of the first cell; indication information on whether to receive system messages of the first cell; indication information on whether to receive paging messages of the first cell; and indication information on whether to receive the SSB of the first cell.

[0058] In some implementations, the system configuration information of the first cell is used to determine at least one of the following: the first downlink frequency domain unit set information of the first cell; the first uplink frequency domain unit set information of the first cell; the second downlink frequency domain unit set information of the first cell; the second uplink frequency domain unit set information of the first cell; resource configuration information corresponding to the first uplink channel or signal; and resource configuration information corresponding to the second downlink channel or signal. Of course, in the embodiments of this application, the above information may not be carried in the system configuration information, but rather in other configuration information with similar functions.

[0059] In some implementations, the one or more frequency domain unit sets described above (e.g., a first uplink frequency domain unit set, a first downlink frequency domain unit set, a second uplink frequency domain unit set, and a second downlink frequency domain unit set) include one or more frequency domain units. A frequency domain unit can be understood as a partitioning unit of frequency domain resources. Optionally, a frequency domain unit is a resource block (RB) or a portion of bandwidth. The downlink frequency domain unit set (e.g., the first downlink frequency domain unit set or the second downlink frequency domain unit set) includes one or more downlink frequency domain units, which are frequency domain units used for downlink transmission. The uplink frequency domain unit set (e.g., the first uplink frequency domain unit set or the second uplink frequency domain unit set) includes one or more uplink frequency domain units, which are frequency domain units used for uplink transmission.

[0060] In some implementations, the system configuration information is used to determine the first downlink frequency domain unit set information of the first cell, which may include: the system configuration information includes indication information indicating the first downlink frequency domain unit set of the first cell, or the system configuration information is used to indicate at least one of the following: the start position, the end position, and the number of frequency domain units included in the first downlink frequency domain unit set of the first cell.

[0061] In some implementations, the system configuration information is used to determine the first uplink frequency domain unit set information of the first cell, which may include: the system configuration information includes indication information indicating the first uplink frequency domain unit set of the first cell, or the system configuration information is used to indicate at least one of the following: the start position, the end position, and the number of frequency domain units included in the first uplink frequency domain unit set of the first cell.

[0062] In some implementations, the system configuration information is used to determine the second downlink frequency domain unit set information of the first cell, which may include: the system configuration information includes indication information indicating the second downlink frequency domain unit set of the first cell, or the system configuration information is used to indicate at least one of the following: the start position, the end position, and the number of frequency domain units included in the second downlink frequency domain unit set of the first cell.

[0063] In some implementations, the system configuration information is used to determine the second uplink frequency domain unit set information of the first cell, which may include: the system configuration information includes indication information indicating the second uplink frequency domain unit set of the first cell, or the system configuration information is used to indicate at least one of the following: the start position, the end position, and the number of frequency domain units included in the second uplink frequency domain unit set of the first cell.

[0064] In some implementations, the system configuration information used to determine the resource configuration information corresponding to the first uplink channel or signal can be replaced by the system configuration information carrying the resource configuration information corresponding to the first uplink channel or signal. In this application embodiment, the resource configuration information is not limited. In some implementations, the resource configuration information can be used to indicate the time-domain and / or frequency-domain resources occupied by the first uplink channel or signal, or in other words, to indicate the resource location for transmitting the first uplink channel or signal.

[0065] In some implementations, the system configuration information used to determine the resource configuration information corresponding to the second downlink channel or signal can be replaced by the system configuration information carrying the resource configuration information corresponding to the second downlink channel or signal. In this application embodiment, the resource configuration information is not limited. In some implementations, the resource configuration information can be used to indicate the time-domain and / or frequency-domain resources occupied by the second downlink channel or signal, or in other words, to indicate the resource location for transmitting the second downlink channel or signal.

[0066] In some implementations, the first downlink channel or signal does not include a downlink channel or signal carrying terminal device-specific information.

[0067] For example, the first downlink channel or signal includes system messages and paging messages of the first cell. Accordingly, the terminal device can detect the SSB by blind detection. After receiving the SSB, it determines the position and size of the first downlink frequency domain unit set and the resources of the first downlink control channel according to the indication information in the SSB. Then, it listens on the resources of the first downlink control channel to receive system messages or paging messages of the first cell.

[0068] For example, the system configuration information of the first cell is used to determine at least one of the following: configuration information of random access resources in the first uplink frequency domain unit set, configuration information of uplink wake-up signal resources in the first uplink frequency domain unit set, configuration information of scheduling request resources in the first uplink frequency domain unit set, configuration information of reference signals in the first downlink frequency domain unit set or the second downlink frequency domain unit set, and resource configuration information of downlink control channels in the first downlink frequency domain unit set or the second downlink frequency domain unit set.

[0069] In some implementations, the network device transmits a reference signal through the second downlink frequency domain unit set based on the configuration information of the reference signal in the second downlink frequency domain unit set, and the terminal device receives the reference signal in the second downlink frequency domain unit set based on the configuration information of the reference signal in the second downlink frequency domain unit set. Optionally, the reference signal includes an SSB. Optionally, the terminal device performs uplink time-frequency synchronization and / or downlink time-frequency synchronization based on the reference signal.

[0070] In some implementations, the first uplink channel or signal includes at least one of the following: a physical random access channel (PRACH); message A (MsgA), wherein MsgA includes PRACH and a physical uplink shared channel (PUSCH); UL WUS; an uplink channel or signal carrying a scheduling request (SR); wherein the UL WUS is used to request SSB transmission or SIB1 transmission of the first cell.

[0071] In some implementations, the first downlink frequency domain unit set of the first cell includes a frequency domain unit in a CC; or, the frequency domain units in the first downlink frequency domain unit set of the first cell are consecutive.

[0072] For example, if the first downlink frequency domain unit set of the first cell includes a frequency domain unit in a CC, the frequency domain units included in the first downlink frequency domain unit set of the first cell are continuous.

[0073] In other implementations, the first downlink frequency domain unit set of the first cell may include frequency domain units from multiple CCs. For example, when the first downlink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the first downlink frequency domain unit set of the first cell are continuous on each CC, or continuous or discontinuous on different CCs. Exemplarily, when the first downlink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the first downlink frequency domain unit set of the first cell are continuous.

[0074] In some implementations, the first uplink frequency domain unit set of the first cell includes a frequency domain unit in a CC; or, the frequency domain units in the first uplink frequency domain unit set of the first cell are consecutive.

[0075] For example, if the first uplink frequency domain unit set of the first cell includes a frequency domain unit in a CC, the frequency domain units included in the first uplink frequency domain unit set of the first cell are continuous.

[0076] In other implementations, the first uplink frequency domain unit set of the first cell may include frequency domain units from multiple control cells (CCs). For example, when the first uplink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the first uplink frequency domain unit set of the first cell are continuous on each CC, or continuous or discontinuous on different CCs. Exemplarily, when the first uplink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the first uplink frequency domain unit set of the first cell are continuous.

[0077] In some implementations, the first downlink frequency domain unit set of the first cell is not used to transmit downlink channels or signals carrying terminal device-specific information; and / or, the first downlink frequency domain unit set of the first cell is only used to transmit common downlink channels or signals. This allows for the distinction between downlink channels or signals carrying terminal device-specific information and frequency domain unit sets used to transmit common downlink channels or signals. From the network device's perspective, when the network device has no downlink channels or signals carrying terminal device-specific information to transmit, it can avoid using the second downlink frequency domain unit set for transmission, and devices such as RF links serving the second downlink frequency domain unit set can be shut down, thus achieving energy savings. From the terminal device's perspective, if it is in an idle or disconnected state, it only needs to use the first downlink frequency domain unit set for communication; and / or, if it enters a connected state, it can also use only the second downlink frequency domain unit set for communication, without adding extra complexity. Furthermore, the device also consumes significant power during the transition time between opening and closing each communication channel. Since common downlink channels or signals are usually transmitted periodically, network devices can periodically activate communication channels, such as working radio frequency links, and enter a sleep state during periods when common downlink channels or signals are not needed. This avoids the frequent switching of communication channels based on the scheduling needs of terminal devices in existing technologies, thereby achieving network energy saving.

[0078] In some implementations, the first cell corresponds to the second downlink frequency domain unit set of the first cell, or in other words, the first cell includes the second downlink frequency domain unit set of the first cell. The second downlink frequency domain unit set of the first cell includes at least one of the following: the second downlink frequency domain unit set of the first cell includes frequency domain units in one or more CCs; or, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous; or, in the case where the second downlink frequency domain unit set of the first cell includes frequency domain units in multiple CCs, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous on each CC, and are continuous or discontinuous on different CCs; the second downlink frequency domain unit set of the first cell includes the first downlink frequency domain unit set of the first cell; the second downlink frequency domain unit set of the first cell does not overlap with the first downlink frequency domain unit set of the first cell at all; the second downlink frequency domain unit set of the first cell partially overlaps with the first downlink frequency domain unit set of the first cell.

[0079] The following section, in conjunction with Figures 4A and 4B, describes the relationship between the first downlink frequency domain unit set and the second downlink frequency domain unit set of the first cell in the embodiments of this application.

[0080] Referring to Figure 4A, the first downlink frequency domain unit set of the first cell includes the frequency domain units on CC#1, and the second downlink frequency domain unit set of the first cell includes the frequency domain units on CC#2. At this time, the second downlink frequency domain unit set of the first cell does not overlap with the first downlink frequency domain unit set of the first cell.

[0081] Referring to Figure 4B, the first downlink frequency domain unit set of the first cell includes the frequency domain unit on CC#1, and the second downlink frequency domain unit set of the first cell includes the frequency domain units on CC#2 and CC#3. At this time, the second downlink frequency domain unit set of the first cell does not overlap with the first downlink frequency domain unit set of the first cell.

[0082] In some implementations, the second downlink frequency domain unit set of the first cell is not used to transmit common downlink channels or signals; and / or, the second downlink frequency domain unit set of the first cell is only used to transmit common downlink channels or signals carrying terminal device-specific information. This allows for the distinction between downlink channels or signals carrying terminal device-specific information and frequency domain unit sets used to transmit common downlink channels or signals. From the network device's perspective, when the network device has no downlink channels or signals carrying terminal device-specific information to transmit, it can omit the use of the second downlink frequency domain unit set for transmission, and the radio frequency link serving the second downlink frequency domain unit set can be shut down, thus achieving energy savings. From the terminal device's perspective, if it is in an idle or disconnected state, it only needs to use the first downlink frequency domain unit set for communication; and / or, if it enters a connected state, it can also use only the second downlink frequency domain unit set for communication without adding extra complexity.

[0083] In some implementations, the frequency range (or bandwidth) corresponding to the second downlink frequency domain unit set of the first cell is greater than the frequency range (or bandwidth) corresponding to the first downlink frequency domain unit set of the first cell. This helps reduce the power consumption required for network devices to transmit downlink signals or channels through the first downlink frequency domain unit set. For example, the bandwidth corresponding to the first downlink frequency domain unit set is 3 MHz.

[0084] In some implementations, the first downlink frequency domain cell set of the first cell and the first downlink frequency domain cell set of the second cell partially or completely overlap.

[0085] In some implementations, the first cell corresponds to the second downlink frequency domain unit set of the first cell, and the second cell corresponds to the second downlink frequency domain unit set of the second cell. The second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell partially overlap or completely overlap; or, the second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell do not overlap at all.

[0086] In some implementations, if the second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell completely overlap, the second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell can adopt one or more of time division multiplexing, code division multiplexing, and space division multiplexing.

[0087] The following section uses cell 1 as an example and cell 2 as an example, and describes the positional relationship between the first downlink frequency domain unit set of the first cell and the first downlink frequency domain unit set of the second cell in the embodiment of this application with reference to Figures 5 to 7.

[0088] Referring to Figure 5, the first downlink frequency domain unit set #1 of cell 1 and the first downlink frequency domain unit set #2 of cell 2 are both on CC#1. The second downlink frequency domain unit set #1 of cell 1 is on CC#2, and the second downlink frequency domain unit set #2 of cell 2 is on CC#3. That is to say, the first downlink frequency domain unit set #1 of cell 1 and the first downlink frequency domain unit set #2 of cell 2 overlap, while the second downlink frequency domain unit set #1 of cell 1 and the second downlink frequency domain unit set #2 of cell 2 do not overlap.

[0089] Referring to Figure 6, the first downlink frequency domain unit set #1 of cell 1 and the first downlink frequency domain unit set #2 of cell 2 are both on the same CC but are time-division multiplexed. The second downlink frequency domain unit set #1 of cell 1 and the second downlink frequency domain unit set #2 of cell 2 are on different CCs. That is, the first downlink frequency domain unit set #1 and the first downlink frequency domain unit set #2 overlap in the frequency domain (time-division multiplexing), while the second downlink frequency domain unit set #1 and the second downlink frequency domain unit set #2 do not overlap.

[0090] Referring to Figure 7, the first downlink frequency domain unit set #1 of cell 1 and the first downlink frequency domain unit set #2 of cell 2 are both on the same CC but are time-division multiplexed. The second downlink frequency domain unit set #1 of cell 1 and the second downlink frequency domain unit set #2 of cell 2 are both on the same CC. That is, the first downlink frequency domain unit set #1 and the first downlink frequency domain unit set #2 overlap in the frequency domain, but do not overlap in the time domain, while the second downlink frequency domain unit set #1 and the second downlink frequency domain unit set #2 overlap.

[0091] In some implementations, the first downlink frequency domain element set of the second cell is used to transmit the common downlink channel or signal of the second cell. It is understood that the common downlink channel or signal of the second cell includes the same channels or signals or performs the same functions as the common downlink channel or signal of the first cell, and will not be elaborated further here.

[0092] Figure 8 illustrates a scheme for network device 1 and network device 2 to transmit the first downlink channel or signal, taking the SSB / SIB / paging message of the first cell, such as cell 1, as an example. Referring to Figure 8, the network includes TRP 1 and TRP 2. In TRP 1, network device 1 communicates with terminal device 1, and in TRP 2, network device 2 communicates with terminal device 2. Network device 1 and network device 2 transmit the first downlink channel or signal on the same time-frequency resources. For example, network device 1 and network device 2 transmit the SSB / SIB / paging message of cell 1 using SFN (Single-Frequency Number).

[0093] In some implementations, receiving a first downlink channel or signal through a first downlink frequency domain unit set of a first cell includes: receiving the first downlink channel or signal through the first downlink frequency domain unit set of the first cell within a first time window; and / or, not receiving the downlink channel or signal through the first downlink frequency domain unit set of the first cell within a second time window.

[0094] In some implementations, within the second time window, the first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

[0095] Figure 9 illustrates a scheme for transmitting a common downlink channel or signal in the first and second cells, using the example of a first downlink channel or signal including SSB / SIB / paging messages from a first cell (e.g., cell 1) and a second cell's common downlink channel or signal including SSB / SIB / paging messages from a second cell (e.g., cell 2). Referring to Figure 9, the network includes cell 1 and cell 2. In cell 1, network device 1 communicates with terminal device 1, and in cell 2, network device 2 communicates with terminal device 2. Assuming that the first downlink frequency domain unit sets in different cells correspond to the same frequency domain resources, different cells can transmit the first downlink channel or signal in a time-division multiplexing manner. For example, network device 1 can transmit SSB / SIB / paging messages from cell 1 within a first time window, and network device 2 can transmit SSB / SIB / paging messages from cell 2 within a second time window.

[0096] The preceding text introduced the first downlink frequency domain unit set and the second downlink frequency domain unit set in the embodiments of this application from the perspectives of the first cell and the second cell. In some scenarios, the cell can be replaced by a TRP; for example, the first cell can be replaced by the first TRP, and the second cell can be replaced by the second TRP. The following text uses the first TRP and the second TRP as examples for further explanation.

[0097] In some implementations, the first downlink frequency domain cell set of the first TRP and the first downlink frequency domain cell set of the second TRP partially or completely overlap.

[0098] In some implementations, the first TRP corresponds to the second downlink frequency domain unit set of the first TRP, and the second TRP corresponds to the second downlink frequency domain unit set of the second TRP. The second downlink frequency domain unit set of the first TRP and the second downlink frequency domain unit set of the second TRP partially overlap or completely overlap; or, the second downlink frequency domain unit set of the first TRP and the second downlink frequency domain unit set of the second TRP do not overlap at all.

[0099] In some implementations, if the second downlink frequency domain unit set of the first TRP completely overlaps with the second downlink frequency domain unit set of the second TRP, the second downlink frequency domain unit set of the first TRP and the second downlink frequency domain unit set of the second TRP can adopt one or more of time division multiplexing, code division multiplexing, and space division multiplexing.

[0100] In some implementations, the first downlink frequency domain unit set of the second TRP is used to transmit the common downlink channel or signal of the second TRP.

[0101] In some implementations, receiving a first downlink channel or signal through the first downlink frequency domain unit set of the first TRP includes: receiving the first downlink channel or signal through the first downlink frequency domain unit set of the first TRP within a first time window; and / or, not receiving the downlink channel or signal through the first downlink frequency domain unit set of the first TRP within a second time window.

[0102] In some implementations, within the second time window, the first downlink frequency domain unit set of the second TRP is used to transmit the common downlink channel or signal of the second TRP.

[0103] In some implementations, when transmitting a first uplink channel or signal through a first uplink frequency domain unit set of a first cell, the method further includes: receiving a second downlink channel or signal through a target downlink frequency domain unit set; wherein the second downlink channel or signal is used to respond to the first uplink channel or signal, and the target downlink frequency domain unit set is either the first downlink frequency domain unit set of the first cell or the second downlink frequency domain unit set of the first cell.

[0104] In some implementations, the target downlink frequency domain element set is determined based on at least one of the following: the target downlink frequency domain element set is the first downlink frequency domain element set of the first cell; if no second downlink frequency domain element set of the first cell is configured, the target downlink frequency domain element set is the first downlink frequency domain element set of the first cell; if no first indication information is configured, the target downlink frequency domain element set is the first downlink frequency domain element set of the first cell; if the first uplink channel or signal includes UL... In the case of WUS, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device is in idle or inactive state, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device only supports the first function or capability set, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device supports the second function or capability set or a non-first function or capability set, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the first uplink channel or signal includes an uplink channel or signal carrying SR, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the terminal device is in connected state, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when configuring first indication information, the target downlink frequency domain unit set is determined based on the first indication information; wherein, the first indication information is determined based on the first downlink channel or signal.

[0105] In some implementations, the aforementioned first set of functions or capabilities may also be referred to as a small function core or a small core. For example, a small core may refer to: the terminal device receiving or transmitting signals through the first set of UE functions / capabilities, or the terminal device receiving / transmitting a first set of signals, or the terminal device receiving / transmitting signals within a first set of resources, or the terminal device receiving / transmitting signals through a small function core.

[0106] In some implementations, the aforementioned second set of functions or capabilities may also be referred to as a large functional core or a large kernel. For example, a large kernel may refer to: the terminal device receiving or transmitting signals through the second UE function / capability set; or, the terminal device receiving / transmitting a second signal set; or, the terminal device receiving / transmitting signals within a second resource set; or, the terminal device receiving / transmitting signals through a large functional core.

[0107] In some implementations, at least one function / capability in the second set of functions or capabilities differs from the first set of functions or capabilities. For example, the maximum receive or transmit bandwidth, the time-frequency resources occupied by the second set of signals, or the time-frequency resources contained in the second set of resources differ from the first set of signals / resources.

[0108] In some implementations, the same terminal device can switch between a first set of functions or capabilities and a second set of functions or capabilities, or support only the first set of functions or capabilities; the same terminal device can receive / transmit different sets of signals at different times, or receive / transmit only the first set of signals; the same terminal device can receive / transmit signals in different resource sets at different times, or receive / transmit signals only within the first resource set.

[0109] In some implementations, the non-first function or capability set includes: the terminal device receiving or transmitting signals through capabilities or functions beyond the first function or capability set; or the terminal device receiving / transmitting signals outside the first signal set; or the terminal device receiving / transmitting signals within resources outside the first resource set.

[0110] In some embodiments, the set of functions or capabilities includes at least one of the following: receive bandwidth, transmit bandwidth, receive antenna, transmit antenna, number of receive ports, number of transmit ports, number of transmit layers, maximum supported MCS (Modulation and Coding Scheme), maximum data rate, massive MIMO (Multiple Input Multiple Output), millimeter wave, SBFD (Subband non-overlapping Full Duplex), unlicensed spectrum, positioning, low power consumption, multi-carrier, and IAB (Integrated access Backhaul).

[0111] In some implementations, the determination of the aforementioned target downlink frequency domain unit set can be based on preset rules. That is, the terminal device can determine whether to listen to or receive the second downlink channel or signal through the first downlink frequency domain unit set or the second downlink frequency domain unit set according to preset rules. Correspondingly, the network device can also determine whether to send the second downlink channel or signal through the first downlink frequency domain unit set or the second downlink frequency domain unit set according to the same preset rules, which helps to save signaling overhead on the network side.

[0112] Of course, in this embodiment, the determination of the target downlink frequency domain unit set can be based on the first indication information. That is, the network device configures the terminal device to listen to or receive the second downlink channel or signal through the first downlink frequency domain unit set or the second downlink frequency domain unit set via signaling. In this way, the network device can decide whether to configure the terminal device to use the first downlink frequency domain unit set or the second downlink frequency domain unit set according to the frequency domain resource usage in the network, which can achieve a trade-off between the transmission performance of the terminal device and the energy saving of the network device, and make scheduling more flexible.

[0113] For example, a preset rule indicates that in the idle or inactive state, the terminal device listens for or receives the second downlink channel or signal through resources in the first downlink frequency domain unit set of the first cell. In the connected state, the terminal device listens for or receives the second downlink channel or signal through resources in the second downlink frequency domain unit set of the first cell.

[0114] For example, a preset rule indicates that when the terminal device has data transmission (e.g., after the terminal device initiates random access or sends a scheduling request), the terminal device listens for or receives the second downlink channel or signal through the resources in the second downlink frequency domain unit set of the first cell; otherwise, when the terminal device has no data transmission, the terminal device can listen for or receive the second downlink channel or signal through the resources in the first downlink frequency domain unit set of the first cell.

[0115] The following section, with reference to Figure 10, describes a scheme for receiving a second downlink channel or signal through a target downlink frequency domain unit set when the first uplink channel or signal of the first cell includes UL WUS. The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell. Referring to Figure 10, the first cell includes a first downlink frequency domain unit set and a first uplink frequency domain unit set. The first uplink channel or signal includes UL WUS, which is used to request the network device to send SIB1. Assuming the network device sends an SSB on the first downlink frequency domain unit set of the first cell, correspondingly, after receiving the SSB through the first downlink frequency domain unit set of the first cell, the terminal device can send UL WUS through the first uplink frequency domain unit set of the first cell. Furthermore, the terminal device can listen for or receive the SIB1 sent by the network device through resources in the first downlink frequency domain unit set of the first cell.

[0116] In some implementations, the frequency range corresponding to the first downlink frequency domain unit set is larger than the frequency range corresponding to the first uplink frequency domain unit set, which helps to reduce the time required for network devices to transmit SIB1 and improve the efficiency of terminal devices in receiving SIB1.

[0117] The following section, with reference to Figure 11, describes the scheme for determining the target downlink frequency domain unit set based on the first indication information. Referring to Figure 11, assume that the network device indicates the target downlink frequency domain unit set as the second downlink frequency domain unit set of the first cell using the first indication information. After the terminal device sends a scheduling request (SR) through the first uplink frequency domain unit set of the first cell, it can listen for or receive downlink control information (DCI) carrying scheduling information sent by the network device to the terminal device through the second downlink frequency domain unit set of the first cell. If the scheduling information is received, the terminal device completes data transmission using the resources in the second uplink frequency domain unit set.

[0118] Assume that the network device indicates the target downlink frequency domain unit set as the first downlink frequency domain unit set of the first cell via the first indication information. After the terminal device sends SR via the first uplink frequency domain unit set of the first cell, it can listen for or receive downlink control information (DCI) carrying scheduling information sent by the network device to the terminal device via the first downlink frequency domain unit set of the first cell. If the scheduling information is received, the terminal device completes data transmission using the resources in the second uplink frequency domain unit set.

[0119] In some implementations, the frequency range corresponding to the second downlink frequency domain unit set is larger than the frequency range corresponding to the combination of the first downlink frequency domain units. Therefore, the scheduling information transmitted in the second downlink frequency domain unit set can be transmitted over a larger bandwidth in a shorter time, which helps reduce the data transmission time of the terminal device. Furthermore, since the frequency range corresponding to the second downlink frequency domain unit set is larger than the frequency range corresponding to the combination of the first downlink frequency domain units, the scheduling information transmitted through the first downlink frequency domain unit set helps reduce the requirements on the terminal device's capabilities. That is, for some terminal devices that do not support detecting scheduling information over a larger frequency domain (e.g., terminal devices that only support the first set of functions or capabilities), scheduling information can be detected within the first downlink frequency domain units, which helps improve the success rate of the terminal device in detecting scheduling information.

[0120] In some implementations, the second downlink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

[0121] In some implementations, the second downlink channel or signal includes one of the following: when the first uplink channel or signal includes PRACH, the second downlink channel or signal includes at least one of the following: a PDSCH carrying a random access response (RAR) and a PDCCH scheduling the RAR; when the first uplink channel or signal includes MsgA, the second downlink channel or signal includes at least one of the following: a PDSCH carrying a fallback RAR or a successful RAR and a PDCCH scheduling the fallback RAR or a successful RAR; when the first uplink channel or signal includes UL WUS, the second downlink channel or signal includes at least one of the following: a PDSCH or PDCCH carrying an acknowledgment message, a PDSCH carrying RAR, a PDCCH scheduling the RAR, the SSB of the first cell, a PDSCH carrying the SIB1 of the first cell, and a PDCCH scheduling the SIB1 of the first cell; when the first uplink channel or signal includes SR, the second downlink channel or signal includes at least one of the following: a PDCCH carrying uplink grants, a PDCCH carrying downlink grants, and a PDSCH carrying terminal equipment-specific information.

[0122] In some implementations, where the first uplink channel or signal includes UL WUS, the second downlink channel or signal may include a PDSCH carrying RAR or a PDCCH scheduling RAR, wherein the RAR may serve as an acknowledgment message for UL WUS.

[0123] In some implementations, the target downlink frequency domain element set is the second downlink frequency domain element set of the first cell. The method further includes: transmitting a second uplink channel or signal through the second uplink frequency domain element set of the first cell; and / or receiving a third downlink channel or signal through the second downlink frequency domain element set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR. In some implementations, the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities. In some implementations, the second uplink frequency domain element set of the first cell is determined based on the system configuration information of the first cell.

[0124] For example, when the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the terminal device receives a second downlink channel or signal and / or a third downlink channel or signal through a second set of downlink frequency domain units of the first cell.

[0125] For example, when the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the terminal device transmits a second uplink channel or signal through a second set of uplink frequency domain units in the first cell.

[0126] The random access scheme of this application embodiment is described below with reference to Figure 12. It is assumed that the first uplink channel or signal includes PRACH, the second downlink channel or signal includes PDSCH carrying the random access response (RAR), the second uplink channel or signal includes Msg3 PUSCH, and the third downlink channel or signal includes Msg4 PDSCH.

[0127] Referring to Figure 12, the network device can send SSB and / or SIB1 through the first downlink frequency domain unit set of the first cell. Correspondingly, after receiving SSB and / or SIB1 through the first downlink frequency domain unit set of the first cell, the terminal device can send PRACH through the first uplink frequency domain unit set of the first cell, and listen for or receive the PDSCH carrying RAR sent by the network device in the second downlink frequency domain unit set of the first cell. Then, the terminal device sends Msg3 PUSCH through the second uplink frequency domain unit set of the first cell, and receives Msg4 PDSCH sent by the network device in the second downlink frequency domain unit set of the first cell. That is to say, the terminal device can complete the random access procedure through the second uplink frequency domain unit set and the second downlink frequency domain unit set of the first cell. Optionally, the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities.

[0128] In some implementations, the target downlink frequency domain element set is the first downlink frequency domain element set of the first cell. The method further includes: transmitting a second uplink channel or signal through the second uplink frequency domain element set of the first cell; and / or receiving a third downlink channel or signal through the second downlink frequency domain element set of the first cell; wherein the second uplink channel or signal includes Msg3 PUSCH, and / or the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR. In some implementations, the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities. In some implementations, the second uplink frequency domain element set of the first cell is determined based on the system configuration information of the first cell.

[0129] For example, when the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the terminal device receives a third downlink channel or signal through a second set of downlink frequency domain units of the first cell.

[0130] For example, when the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the terminal device transmits a second uplink channel or signal through a second set of uplink frequency domain units in the first cell.

[0131] The random access scheme of this application embodiment is described below with reference to Figure 13. It is assumed that the first uplink channel or signal includes PRACH, the second downlink channel or signal includes PDSCH carrying the random access response (RAR), the second uplink channel or signal includes Msg3 PUSCH, and the third downlink channel or signal includes Msg4 PDSCH.

[0132] Referring to Figure 13, the network device can send SSB and / or SIB1 through the first downlink frequency domain unit set of the first cell. Correspondingly, after receiving SSB and / or SIB1 through the first downlink frequency domain unit set of the first cell, the terminal device can send PRACH through the first uplink frequency domain unit set of the first cell, and listen for or receive the PDSCH carrying RAR sent by the network device in the first downlink frequency domain unit set of the first cell. Then, the terminal device sends Msg3 PUSCH through the second uplink frequency domain unit set of the first cell, and receives Msg4 PDSCH sent by the network device in the second downlink frequency domain unit set of the first cell. That is to say, the terminal device can complete the random access procedure through the second uplink frequency domain unit set and the second downlink frequency domain unit set of the first cell. Optionally, the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities.

[0133] In some implementations, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell. The method further includes: transmitting a second uplink channel or signal through the first uplink frequency domain unit set of the first cell; and / or receiving a third downlink channel or signal through the first downlink frequency domain unit set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR. In some implementations, the terminal device only supports the first set of functions or capabilities.

[0134] For example, when the terminal device only supports the first set of functions or capabilities, the terminal device receives the third downlink channel or signal through the first downlink frequency domain unit set of the first cell.

[0135] For example, when the terminal device only supports the first set of functions or capabilities, the terminal device transmits the second uplink channel or signal through the first uplink frequency domain unit set of the first cell.

[0136] In some implementations, the frequency domain range (or bandwidth) corresponding to the first downlink frequency domain unit set is smaller than the frequency domain range corresponding to the second downlink frequency domain unit set. This helps save power required for network devices and terminal devices to communicate based on the first downlink frequency domain unit set. In some implementations, the frequency domain range (or bandwidth) corresponding to the first uplink frequency domain unit set is smaller than the frequency domain range corresponding to the second uplink frequency domain unit set. This also helps save power required for network devices and terminal devices to communicate based on the first uplink frequency domain unit set.

[0137] In some implementations, the first cell includes a first downlink frequency domain unit set, a second downlink frequency domain unit set, and a first uplink frequency domain unit set. That is, the first cell does not include the second uplink frequency domain unit set. In this case, uplink transmission in the first cell is achieved using resources from the first uplink frequency domain unit set.

[0138] In this embodiment, a low-bandwidth transmission method is used on the always-on channel or the frequency domain unit set where the signal is located (i.e., the first downlink frequency domain unit set and / or the first uplink frequency domain unit set), while a high-bandwidth transmission method is used on the terminal-dedicated channel or the frequency domain unit set where the signal is located (i.e., the second downlink frequency domain unit set and / or the second uplink frequency domain unit set). This ensures the initial access performance of terminal devices in the network and also achieves the purpose of network energy saving, thereby optimizing network performance.

[0139] In some implementations, for the first cell, the first spatial filter for downlink channel or signal transmission in the first downlink frequency domain unit set and the second spatial filter for downlink channel or signal transmission in the second downlink frequency domain unit set are different; or, the first spatial filter for downlink channel or signal transmission in the first downlink frequency domain unit set and the second spatial filter for downlink channel or signal transmission in the second downlink frequency domain unit set are the same.

[0140] In some implementations, for the first cell, the third spatial filter for uplink channel or signal transmission in the first uplink frequency domain unit set is different from the fourth spatial filter for uplink channel or signal transmission in the second uplink frequency domain unit set; or, the third spatial filter for uplink channel or signal transmission in the first uplink frequency domain unit set is the same as the fourth spatial filter for uplink channel or signal transmission in the second uplink frequency domain unit set.

[0141] In some implementations, the frequency domain unit set in the embodiments of this application can be replaced with the bandwidth part (BWP). For example, the first uplink frequency domain unit set can be replaced with the first uplink BWP, and the first downlink frequency domain unit set can be replaced with the first downlink BWP. As another example, the second uplink frequency domain unit set can be replaced with the second uplink BWP, and the second downlink frequency domain unit set can be replaced with the second downlink BWP.

[0142] The method embodiments of this application have been described in detail above with reference to Figures 1 to 13. The apparatus embodiments of this application will be described in detail below with reference to Figures 14 to 16. It should be understood that the descriptions of the method embodiments and the apparatus embodiments correspond to each other; therefore, any parts not described in detail can be referred to the preceding method embodiments.

[0143] Figure 14 is a schematic diagram of a terminal device according to an embodiment of this application. The terminal device 1400 shown in Figure 14 includes a receiving unit 1410 and a transmitting unit 1420.

[0144] Receiver unit 1410 is configured to receive a first downlink channel or signal through a first downlink frequency domain unit set of the first cell; and / or,

[0145] The transmitting unit 1420 is configured to transmit a first uplink channel or signal through a first uplink frequency domain unit set of a first cell, wherein the first downlink channel or signal includes the common downlink channel or signal of the first cell.

[0146] In some implementations, the first downlink channel or signal includes at least one of the following: a synchronization signal; a synchronization signal block (SSB); a physical broadcast channel (PBCH) carrying system messages; a physical downlink shared channel (PDSCH) carrying system messages; a physical downlink control channel (PDCCH) that schedules the PDSCH carrying system messages; a PDSCH carrying paging messages; a PDCCH that schedules the PDSCH carrying paging messages; a downlink channel or signal carrying system message change indication information or indication information on whether to receive system messages; a downlink channel or signal carrying indication information on whether to receive paging messages; and a downlink channel or signal carrying indication information on whether to receive an SSB.

[0147] In some implementations, the first downlink channel or signal is used to determine at least one of the following: the cell identifier of the first cell; the cell synchronization information of the first cell; the system configuration information of the first cell; the paging configuration information of the first cell; indication information on whether to receive system messages from the first cell; indication information on whether to receive paging messages from the first cell; and indication information on whether to receive the SSB of the first cell.

[0148] In some implementations, the system configuration information of the first cell is used to determine at least one of the following: the first downlink frequency domain unit set information of the first cell; the first uplink frequency domain unit set information of the first cell; the second downlink frequency domain unit set information of the first cell; the second uplink frequency domain unit set information of the first cell; the resource configuration information corresponding to the first uplink channel or signal; and the resource configuration information corresponding to the second downlink channel or signal.

[0149] In some implementations, the first downlink channel or signal does not include a downlink channel or signal carrying terminal device-specific information.

[0150] In some implementations, the first uplink channel or signal includes at least one of the following: a physical random access channel (PRACH); a message A MsgA, wherein MsgA includes PRACH and a physical uplink shared channel (PUSCH); an uplink wake-up signal UL WUS; and an uplink channel or signal carrying a scheduling request (SR); wherein the UL WUS is used to request SSB transmission or system message block 1 (SIB1) transmission of the first cell.

[0151] In some implementations, when a first uplink channel or signal is transmitted through a first uplink frequency domain unit set of a first cell, the receiving unit is configured to receive a second downlink channel or signal through a target downlink frequency domain unit set; wherein the second downlink channel or signal is used in response to the first uplink channel or signal, and the target downlink frequency domain unit set is either the first downlink frequency domain unit set of the first cell or the second downlink frequency domain unit set of the first cell.

[0152] In some implementations, the target downlink frequency domain unit set is determined based on at least one of the following: the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when no second downlink frequency domain unit set of the first cell is configured, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when no first indication information is configured, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the first uplink channel or signal includes UL In the case of WUS, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device is in an idle or inactive state, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device only supports a first set of functions or capabilities, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device supports a second set of functions or capabilities or a set other than the first set of functions or capabilities, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the first uplink channel or signal includes an uplink channel or signal carrying SR, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the terminal device is in a connected state, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the first indication information is configured, the target downlink frequency domain unit set is determined based on the first indication information; wherein, the first indication information is determined based on the first downlink channel or signal.

[0153] In some implementations, the second downlink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

[0154] In some implementations, the second downlink channel or signal includes one of the following: when the first uplink channel or signal includes PRACH, the second downlink channel or signal includes at least one of the following: a PDSCH carrying a Random Access Response (RAR) and a PDCCH for scheduling RAR; when the first uplink channel or signal includes MsgA, the second downlink channel or signal includes at least one of the following: a PDSCH carrying a fallback RAR or a successful RAR and a PDCCH for scheduling a fallback RAR or a successful RAR; when the first uplink channel or signal includes UL WUS, the second downlink channel or signal includes at least one of the following: a PDSCH or PDCCH carrying an acknowledgment message, a PDSCH carrying RAR, a PDCCH for scheduling RAR, the SSB of the first cell, a PDSCH carrying the SIB1 of the first cell, and a PDCCH for scheduling the SIB1 of the first cell; when the first uplink channel or signal includes SR, the second downlink channel or signal includes at least one of the following: a PDCCH carrying uplink grant, a PDCCH carrying downlink grant, and a PDSCH carrying the terminal device-specific information.

[0155] In some implementations, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell, and the transmitting unit is used to transmit a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, the receiving unit is used to receive a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR.

[0156] In some implementations, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the transmitting unit is used to transmit a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, the receiving unit is used to receive a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR.

[0157] In some implementations, the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities; and / or, the second set of uplink frequency domain units of the first cell is determined based on the system configuration information of the first cell.

[0158] In some implementations, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the transmitting unit is used to transmit a second uplink channel or signal through the first uplink frequency domain unit set of the first cell; and / or, the receiving unit is used to receive a third downlink channel or signal through the first downlink frequency domain unit set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR.

[0159] In some implementations, the terminal device only supports a first set of functions or capabilities.

[0160] In some implementations, the first downlink frequency domain unit set of the first cell includes frequency domain units in a carrier CC; or, the frequency domain units in the first downlink frequency domain unit set of the first cell are continuous.

[0161] In some implementations, the first downlink frequency domain unit set of the first cell is not used to transmit downlink channels or signals carrying terminal device-specific information; and / or, the first downlink frequency domain unit set of the first cell is only used to transmit common downlink channels or signals.

[0162] In some implementations, the first cell corresponds to the second downlink frequency domain unit set of the first cell. The second downlink frequency domain unit set of the first cell includes at least one of the following: the second downlink frequency domain unit set of the first cell includes frequency domain units in one or more CCs; or, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous; or, when the second downlink frequency domain unit set of the first cell includes frequency domain units in multiple CCs, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous on each CC, and continuous or discontinuous on different CCs; the second downlink frequency domain unit set of the first cell includes the first downlink frequency domain unit set of the first cell; the second downlink frequency domain unit set of the first cell does not overlap with the first downlink frequency domain unit set of the first cell; the second downlink frequency domain unit set of the first cell partially overlaps with the first downlink frequency domain unit set of the first cell.

[0163] In some implementations, the second downlink frequency domain unit set of the first cell is not used to transmit common downlink channels or signals; and / or, the second downlink frequency domain unit set of the first cell is used only to transmit common downlink channels or signals carrying terminal device-specific information.

[0164] In some implementations, the first downlink frequency domain cell set of the first cell and the first downlink frequency domain cell set of the second cell partially or completely overlap.

[0165] In some implementations, the first cell corresponds to the second downlink frequency domain unit set of the first cell, and the second cell corresponds to the second downlink frequency domain unit set of the second cell. The second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell partially or completely overlap; or, the second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell do not overlap at all.

[0166] In some implementations, the first downlink frequency domain cell set of the second cell is used to transmit the common downlink channel or signal of the second cell.

[0167] In some implementations, the receiving unit is further configured to: receive the first downlink channel or signal through the first downlink frequency domain unit set of the first cell within a first time window; and / or, not receive the downlink channel or signal through the first downlink frequency domain unit set of the first cell within a second time window.

[0168] In some implementations, within the second time window, the first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

[0169] Figure 15 is a schematic diagram of a network device according to an embodiment of this application. The network device 1500 shown in Figure 15 includes a transmitting unit 1510 and a receiving unit 1520.

[0170] Transmitting unit 1510 is configured to transmit a first downlink channel or signal through a first downlink frequency domain unit set of the first cell; and / or,

[0171] The receiving unit 1520 is configured to receive a first uplink channel or signal through a first uplink frequency domain unit set of the first cell, wherein the first downlink channel or signal includes the common downlink channel or signal of the first cell.

[0172] In some implementations, the first downlink channel or signal includes at least one of the following: a synchronization signal; a synchronization signal block (SSB); a physical broadcast channel (PBCH) carrying system messages; a physical downlink shared channel (PDSCH) carrying system messages; a physical downlink control channel (PDCCH) that schedules the PDSCH carrying system messages; a PDSCH carrying paging messages; a PDCCH that schedules the PDSCH carrying paging messages; a downlink channel or signal carrying system message change indication information or indication information on whether to receive system messages; a downlink channel or signal carrying indication information on whether to receive paging messages; and a downlink channel or signal carrying indication information on whether to receive an SSB.

[0173] In some implementations, the first downlink channel or signal is used to determine at least one of the following: the cell identifier of the first cell; the cell synchronization information of the first cell; the system configuration information of the first cell; the paging configuration information of the first cell; indication information on whether to receive system messages from the first cell; indication information on whether to receive paging messages from the first cell; and indication information on whether to receive the SSB of the first cell.

[0174] In some implementations, the system configuration information of the first cell is used to determine at least one of the following: the first downlink frequency domain unit set information of the first cell; the first uplink frequency domain unit set information of the first cell; the second downlink frequency domain unit set information of the first cell; the second uplink frequency domain unit set information of the first cell; the resource configuration information corresponding to the first uplink channel or signal; and the resource configuration information corresponding to the second downlink channel or signal.

[0175] In some implementations, the first downlink channel or signal does not include a downlink channel or signal carrying terminal device-specific information.

[0176] In some implementations, the first uplink channel or signal includes at least one of the following: a physical random access channel (PRACH); a message A MsgA, wherein MsgA includes PRACH and a physical uplink shared channel (PUSCH); an uplink wake-up signal UL WUS; and an uplink channel or signal carrying a scheduling request (SR); wherein the UL WUS is used to request SSB transmission or system message block 1 (SIB1) transmission of the first cell.

[0177] In some implementations, when receiving a first uplink channel or signal through a first uplink frequency domain unit set of a first cell, the transmitting unit is further configured to transmit a second downlink channel or signal through a target downlink frequency domain unit set; wherein the second downlink channel or signal is used in response to the first uplink channel or signal, and the target downlink frequency domain unit set is either the first downlink frequency domain unit set of the first cell or the second downlink frequency domain unit set of the first cell.

[0178] In some implementations, the target downlink frequency domain unit set is determined based on at least one of the following: the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when no second downlink frequency domain unit set of the first cell is configured, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when no first indication information is configured, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the first uplink channel or signal includes UL In the case of WUS, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device is in an idle or inactive state, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device only supports a first set of functions or capabilities, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; when the terminal device supports a second set of functions or capabilities or a set other than the first set of functions or capabilities, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the first uplink channel or signal includes an uplink channel or signal carrying SR, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the terminal device is in a connected state, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; when the first indication information is configured, the target downlink frequency domain unit set is determined based on the first indication information; wherein, the first indication information is determined based on the first downlink channel or signal.

[0179] In some implementations, the second downlink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

[0180] In some implementations, the second downlink channel or signal includes one of the following: when the first uplink channel or signal includes PRACH, the second downlink channel or signal includes at least one of the following: a PDSCH carrying a Random Access Response (RAR) and a PDCCH for scheduling RAR; when the first uplink channel or signal includes MsgA, the second downlink channel or signal includes at least one of the following: a PDSCH carrying a fallback RAR or a successful RAR and a PDCCH for scheduling a fallback RAR or a successful RAR; when the first uplink channel or signal includes UL WUS, the second downlink channel or signal includes at least one of the following: a PDSCH or PDCCH carrying an acknowledgment message, a PDSCH carrying RAR, a PDCCH for scheduling RAR, the SSB of the first cell, a PDSCH carrying the SIB1 of the first cell, and a PDCCH for scheduling the SIB1 of the first cell; when the first uplink channel or signal includes SR, the second downlink channel or signal includes at least one of the following: a PDCCH carrying uplink grant, a PDCCH carrying downlink grant, and a PDSCH carrying the terminal device-specific information.

[0181] In some implementations, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell, and the receiving unit is configured to receive a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, the transmitting unit is configured to transmit a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR.

[0182] In some implementations, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the receiving unit is configured to receive a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, the transmitting unit is configured to transmit a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR.

[0183] In some implementations, the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities; and / or, the second set of uplink frequency domain units of the first cell is determined based on the system configuration information of the first cell.

[0184] In some implementations, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the receiving unit is configured to receive a second uplink channel or signal through the first uplink frequency domain unit set of the first cell; and / or, the transmitting unit is configured to transmit a third downlink channel or signal through the first downlink frequency domain unit set of the first cell; wherein the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; wherein the first uplink channel or signal includes PRACH or MsgA or UL WUS; wherein the second downlink channel or signal includes PDSCH carrying RAR or fallback RAR.

[0185] In some implementations, the terminal device only supports a first set of functions or capabilities.

[0186] In some implementations, the first downlink frequency domain unit set of the first cell includes frequency domain units in a carrier CC; or, the frequency domain units in the first downlink frequency domain unit set of the first cell are continuous.

[0187] In some implementations, the first downlink frequency domain unit set of the first cell is not used to transmit downlink channels or signals carrying terminal device-specific information; and / or, the first downlink frequency domain unit set of the first cell is only used to transmit common downlink channels or signals.

[0188] In some implementations, the first cell corresponds to the second downlink frequency domain unit set of the first cell. The second downlink frequency domain unit set of the first cell includes at least one of the following: the second downlink frequency domain unit set of the first cell includes frequency domain units in one or more CCs; the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous; when the second downlink frequency domain unit set of the first cell includes frequency domain units in multiple CCs, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous on each CC, and continuous or discontinuous on different CCs; the second downlink frequency domain unit set of the first cell includes the first downlink frequency domain unit set of the first cell; the second downlink frequency domain unit set of the first cell does not overlap with the first downlink frequency domain unit set of the first cell at all; the second downlink frequency domain unit set of the first cell partially overlaps with the first downlink frequency domain unit set of the first cell.

[0189] In some implementations, the second downlink frequency domain unit set of the first cell is not used to transmit common downlink channels or signals; and / or, the second downlink frequency domain unit set of the first cell is used only to transmit common downlink channels or signals carrying terminal device-specific information.

[0190] In some implementations, the first downlink frequency domain cell set of the first cell and the first downlink frequency domain cell set of the second cell partially or completely overlap.

[0191] In some implementations, the first cell corresponds to the second downlink frequency domain unit set of the first cell, and the second cell corresponds to the second downlink frequency domain unit set of the second cell. The second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell partially or completely overlap; or, the second downlink frequency domain unit set of the first cell and the second downlink frequency domain unit set of the second cell do not overlap at all.

[0192] In some implementations, the first downlink frequency domain cell set of the second cell is used to transmit the common downlink channel or signal of the second cell.

[0193] In some implementations, the transmitting unit is configured to: transmit the first downlink channel or signal through the first downlink frequency domain unit set of the first cell within a first time window; and / or, not transmit the downlink channel or signal through the first downlink frequency domain unit set of the first cell within a second time window.

[0194] In some implementations, within the second time window, the first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

[0195] In an optional embodiment, the receiving unit 1410 and the transmitting unit 1410 may be a transceiver 1630. The terminal device 1400 may also include a transceiver 1630 and a memory 1620, as shown in FIG16.

[0196] In an optional embodiment, the transmitting unit 1510 and the receiving unit 1520 may be a transceiver 1630. The network device 1500 may also include a transceiver 1630 and a memory 1620, as shown in FIG16.

[0197] Figure 16 is a schematic structural diagram of a communication device according to an embodiment of this application. The dashed lines in Figure 16 indicate that the unit or module is optional. This device 1600 can be used to implement the network device described in the above network device embodiments. Device 1600 can be a chip, a terminal device, or a network device.

[0198] Device 1600 may include one or more processors 1610. The processor 1610 may enable device 1600 to implement the network device described in the preceding network device embodiments. The processor 1610 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0199] The device 1600 may also include one or more memories 1620. The memories 1620 store a program that can be executed by the processor 1610, causing the processor 1610 to perform the network device described in the preceding network device embodiments. The memories 1620 may be independent of the processor 1610 or integrated within the processor 1610.

[0200] The device 1600 may also include a transceiver 1630. The processor 1610 can communicate with other devices or chips via the transceiver 1630. For example, the processor 1610 can send and receive data with other devices or chips via the transceiver 1630.

[0201] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal or network device provided in this application embodiment, and the program causes a computer to execute the network device executed by the terminal or network device in various embodiments of this application.

[0202] This application also provides a computer program product. The computer program product includes a program. This computer program product can be applied to a terminal or network device provided in this application embodiment, and the program causes a computer to execute the network device executed by the terminal or network device in the various embodiments of this application.

[0203] This application also provides a computer program. This computer program can be applied to the terminal or network device provided in this application, and the computer program causes the computer to execute the network device executed by the terminal or network device in the various embodiments of this application.

[0204] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0205] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0206] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0207] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0208] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0209] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0210] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0211] In the various embodiments of this application, the order of the above-mentioned processes does not imply 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 this application.

[0212] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and network devices can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0213] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0214] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0215] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially 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, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0216] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for wireless communication, characterized in that, The method is executed by a terminal device, and the method includes: Receive the first downlink channel or signal through the first downlink frequency domain unit set of the first cell; and / or, The first uplink channel or signal is transmitted through the first uplink frequency domain unit set of the first cell. The first downlink channel or signal includes the common downlink channel or signal of the first cell.

2. The method as described in claim 1, characterized in that, The first downlink channel or signal includes at least one of the following: Synchronization signal; Synchronization signal block (SSB); The Physical Broadcast Channel (PBCH) carries system messages; The Physical Downlink Shared Channel (PDSCH) carries system messages; Schedule the physical downlink control channel (PDCCH) that carries system messages in the PDSCH; PDSCH carrying paging messages; Schedule the PDCCH carrying the PDSCH paging message; Downlink channels or signals carrying system message change indication information or indication information on whether to receive system messages; A downlink channel or signal carrying an indication of whether to receive a paging message; A downlink channel or signal carrying an indication of whether to receive an SSB.

3. The method as described in claim 1 or 2, characterized in that, The first downlink channel or signal is used to determine at least one of the following: The community identifier of the first community; The cell synchronization information of the first cell; System configuration information of the first cell; The paging configuration information of the first cell; Indicator information on whether to receive system messages from the first cell; Indication information regarding whether to receive the paging message from the first cell; Whether to receive the SSB indication information of the first cell.

4. The method as described in claim 3, characterized in that, The system configuration information of the first cell is used to determine at least one of the following: Information on the first downlink frequency domain cell set of the first cell; Information on the first uplink frequency domain cell set of the first cell; Information on the second downlink frequency domain cell set of the first cell; Information on the second uplink frequency domain cell set of the first cell; Resource configuration information corresponding to the first uplink channel or signal; Resource configuration information corresponding to the second downlink channel or signal.

5. The method according to any one of claims 1-4, characterized in that, The first downlink channel or signal does not include downlink channels or signals carrying terminal device-specific information.

6. The method according to any one of claims 1-5, characterized in that, The first uplink channel or signal includes at least one of the following: Physical Random Access Channel (PRACH); Message A MsgA, wherein MsgA includes PRACH and the Physical Uplink Shared Channel (PUSCH); Uplink wake-up signal UL WUS; Uplink channel or signal carrying scheduling request (SR); The UL WUS is used to request SSB transmission or System Message Block 1 (SIB1) transmission from the first cell.

7. The method according to any one of claims 1-6, characterized in that, When transmitting a first uplink channel or signal through a first uplink frequency domain unit set of a first cell, the method further includes: The second downlink channel or signal is received through the target downlink frequency domain unit set; Wherein, the second downlink channel or signal is used to respond to the first uplink channel or signal, and the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell or the second downlink frequency domain unit set of the first cell.

8. The method as described in claim 7, characterized in that, The target set of downlink frequency domain cells is determined based on at least one of the following: The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the absence of a second downlink frequency domain unit set configured for the first cell, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; Without configuring the first indication information, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the case where the first uplink channel or signal includes UL WUS, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device is in an idle or inactive state, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device only supports the first set of functions or capabilities, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first uplink channel or signal includes an uplink channel or signal carrying SR, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the terminal device is in a connected state, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first indication information is configured, the target downlink frequency domain cell set is determined based on the first indication information; The first indication information is determined based on the first downlink channel or signal.

9. The method as described in claim 7 or 8, characterized in that, The second downlink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

10. The method according to any one of claims 7-9, characterized in that, The second downlink channel or signal includes one of the following: When the first uplink channel or signal includes PRACH, the second downlink channel or signal includes at least one of the following: PDSCH carrying a Random Access Response (RAR) or PDCCH carrying a Scheduled RAR. When the first uplink channel or signal includes MsgA, the second downlink channel or signal includes at least one of the following: PDSCH carrying a back-off RAR or a successful RAR, or PDCCH scheduling a back-off RAR or a successful RAR. When the first uplink channel or signal includes UL WUS, the second downlink channel or signal includes at least one of the following: PDSCH or PDCCH carrying an acknowledgment message, PDSCH carrying RAR, PDCCH scheduling RAR, SSB of the first cell, PDSCH carrying SIB1 of the first cell, and PDCCH scheduling SIB1 of the first cell. When the first uplink channel or signal includes SR, the second downlink channel or signal includes at least one of the following: PDCCH carrying uplink grant, PDCCH carrying downlink grant, and PDSCH carrying terminal device-specific information.

11. The method according to any one of claims 7-10, characterized in that, The target downlink frequency domain cell set is the second downlink frequency domain cell set of the first cell, and the method further includes: The second uplink channel or signal is transmitted through the second uplink frequency domain unit set of the first cell; and / or The third downlink channel or signal is received through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

12. The method according to any one of claims 7-10, characterized in that, The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the method further includes: The second uplink channel or signal is transmitted through the second uplink frequency domain unit set of the first cell; and / or The third downlink channel or signal is received through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

13. The method as described in claim 11 or 12, characterized in that, The terminal device supports a second set of functions or capabilities, or a set of non-first functions or capabilities; and / or, The second uplink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

14. The method according to any one of claims 7-10, characterized in that, The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the method further includes: The second uplink channel or signal is transmitted through the first uplink frequency domain unit set of the first cell; and / or The third downlink channel or signal is received through the first downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

15. The method as described in claim 14, characterized in that, The terminal device only supports the first set of functions or capabilities.

16. The method according to any one of claims 1-15, characterized in that, The first downlink frequency domain unit set of the first cell includes a frequency domain unit in a carrier CC; or, the frequency domain units in the first downlink frequency domain unit set of the first cell are continuous.

17. The method according to any one of claims 1-16, characterized in that, The first downlink frequency domain cell set of the first cell is not used to transmit downlink channels or signals carrying terminal equipment-specific information; and / or, The first downlink frequency domain unit set of the first cell is used only for transmitting common downlink channels or signals.

18. The method according to any one of claims 1-17, characterized in that, The second downlink frequency domain unit set of the first cell corresponds to the first cell, and the second downlink frequency domain unit set of the first cell includes at least one of the following: The second downlink frequency domain cell set of the first cell includes one or more frequency domain cells from the CC; or, The second downlink frequency domain cell set of the first cell includes frequency domain cells that are consecutive; or, In the case where the second downlink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous on each CC, or continuous or discontinuous on different CCs; The second downlink frequency domain cell set of the first cell includes the first downlink frequency domain cell set of the first cell; The second downlink frequency domain cell set of the first cell does not overlap with the first downlink frequency domain cell set of the first cell at all; The second downlink frequency domain cell set of the first cell partially overlaps with the first downlink frequency domain cell set of the first cell.

19. The method as described in claim 18, characterized in that, The second downlink frequency domain cell set of the first cell is not used to transmit common downlink channels or signals; and / or, The second downlink frequency domain unit set of the first cell is used only for transmitting public downlink channels or signals carrying terminal equipment-specific information.

20. The method according to any one of claims 1-19, characterized in that, The first downlink frequency domain cell set of the first cell and the first downlink frequency domain cell set of the second cell partially or completely overlap.

21. The method as described in claim 20, characterized in that, The first cell corresponds to the second downlink frequency domain cell set of the first cell, and the second cell corresponds to the second downlink frequency domain cell set of the second cell. The second downlink frequency domain cell set of the first cell partially or completely overlaps with the second downlink frequency domain cell set of the second cell; or... The second downlink frequency domain cell set of the first cell and the second downlink frequency domain cell set of the second cell do not overlap at all.

22. The method as described in claim 20 or 21, characterized in that, The first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

23. The method according to any one of claims 1-21, characterized in that, Receiving the first downlink channel or signal through the first downlink frequency domain unit set of the first cell includes: Within the first time window, the first downlink channel or signal is received through the first downlink frequency domain unit set of the first cell; and / or, During the second time window, downlink channels or signals are not received through the first downlink frequency domain unit set of the first cell.

24. The method as described in claim 23, characterized in that, Within the second time window, the first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

25. A method for wireless communication, characterized in that, The method is performed by a network device, and the method includes: The first downlink channel or signal is transmitted through the first downlink frequency domain unit set of the first cell; and / or, The first uplink channel or signal is received through the first uplink frequency domain unit set of the first cell; The first downlink channel or signal includes the common downlink channel or signal of the first cell.

26. The method as described in claim 25, characterized in that, The first downlink channel or signal includes at least one of the following: Synchronization signal; Synchronization signal block (SSB); The Physical Broadcast Channel (PBCH) carries system messages; The Physical Downlink Shared Channel (PDSCH) carries system messages; Schedule the physical downlink control channel (PDCCH) that carries system messages in the PDSCH; PDSCH carrying paging messages; Schedule the PDCCH carrying the PDSCH paging message; Downlink channels or signals carrying system message change indication information or indication information on whether to receive system messages; A downlink channel or signal carrying an indication of whether to receive a paging message; A downlink channel or signal carrying an indication of whether to receive an SSB.

27. The method as described in claim 25 or 26, characterized in that, The first downlink channel or signal is used to determine at least one of the following: The community identifier of the first community; The cell synchronization information of the first cell; System configuration information of the first cell; The paging configuration information of the first cell; Indicator information on whether to receive system messages from the first cell; Indication information regarding whether to receive the paging message from the first cell; Whether to receive the SSB indication information of the first cell.

28. The method as described in claim 27, characterized in that, The system configuration information of the first cell is used to determine at least one of the following: Information on the first downlink frequency domain cell set of the first cell; Information on the first uplink frequency domain cell set of the first cell; Information on the second downlink frequency domain cell set of the first cell; Information on the second uplink frequency domain cell set of the first cell; Resource configuration information corresponding to the first uplink channel or signal; Resource configuration information corresponding to the second downlink channel or signal.

29. The method according to any one of claims 25-28, characterized in that, The first downlink channel or signal does not include downlink channels or signals carrying terminal device-specific information.

30. The method according to any one of claims 25-29, characterized in that, The first uplink channel or signal includes at least one of the following: Physical Random Access Channel (PRACH); Message A MsgA, wherein MsgA includes PRACH and the Physical Uplink Shared Channel (PUSCH); Uplink wake-up signal UL WUS; Uplink channel or signal carrying scheduling request (SR); The UL WUS is used to request SSB transmission or System Message Block 1 (SIB1) transmission from the first cell.

31. The method according to any one of claims 25-30, characterized in that, When receiving a first uplink channel or signal through a first uplink frequency domain unit set of a first cell, the method further includes: The second downlink channel or signal is transmitted through the target downlink frequency domain unit set; Wherein, the second downlink channel or signal is used to respond to the first uplink channel or signal, and the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell or the second downlink frequency domain unit set of the first cell.

32. The method as described in claim 31, characterized in that, The target set of downlink frequency domain cells is determined based on at least one of the following: The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the absence of a second downlink frequency domain unit set configured for the first cell, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; Without configuring the first indication information, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the case where the first uplink channel or signal includes UL WUS, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device is in an idle or inactive state, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device only supports the first set of functions or capabilities, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first uplink channel or signal includes an uplink channel or signal carrying SR, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the terminal device is in a connected state, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first indication information is configured, the target downlink frequency domain cell set is determined based on the first indication information; The first indication information is determined based on the first downlink channel or signal.

33. The method as described in claim 31 or 32, characterized in that, The second downlink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

34. The method according to any one of claims 31-33, characterized in that, The second downlink channel or signal includes one of the following: When the first uplink channel or signal includes PRACH, the second downlink channel or signal includes at least one of the following: PDSCH carrying a Random Access Response (RAR) or PDCCH carrying a Scheduled RAR. When the first uplink channel or signal includes MsgA, the second downlink channel or signal includes at least one of the following: PDSCH carrying a back-off RAR or a successful RAR, or PDCCH scheduling a back-off RAR or a successful RAR. When the first uplink channel or signal includes UL WUS, the second downlink channel or signal includes at least one of the following: PDSCH or PDCCH carrying an acknowledgment message, PDSCH carrying RAR, PDCCH scheduling RAR, SSB of the first cell, PDSCH carrying SIB1 of the first cell, and PDCCH scheduling SIB1 of the first cell. When the first uplink channel or signal includes SR, the second downlink channel or signal includes at least one of the following: PDCCH carrying uplink grant, PDCCH carrying downlink grant, and PDSCH carrying terminal device-specific information.

35. The method according to any one of claims 31-34, characterized in that, The target downlink frequency domain cell set is the second downlink frequency domain cell set of the first cell, and the method further includes: The second uplink channel or signal is received through the second uplink frequency domain unit set of the first cell; and / or The third downlink channel or signal is transmitted through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

36. The method according to any one of claims 31-34, characterized in that, The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the method further includes: The second uplink channel or signal is received through the second uplink frequency domain unit set of the first cell; and / or The third downlink channel or signal is transmitted through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

37. The method as described in claim 35 or 36, characterized in that, The terminal device supports a second set of functions or capabilities, or a set of non-first functions or capabilities; and / or, The second uplink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

38. The method according to any one of claims 31-34, characterized in that, The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell, and the method further includes: The second uplink channel or signal is received through the first uplink frequency domain unit set of the first cell; and / or The third downlink channel or signal is transmitted through the first downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

39. The method as described in claim 38, characterized in that, The terminal device only supports the first set of functions or capabilities.

40. The method according to any one of claims 25-39, characterized in that, The first downlink frequency domain unit set of the first cell includes a frequency domain unit in a carrier CC; or, the frequency domain units in the first downlink frequency domain unit set of the first cell are continuous.

41. The method according to any one of claims 25-40, characterized in that, The first downlink frequency domain cell set of the first cell is not used to transmit downlink channels or signals carrying terminal equipment-specific information; and / or, The first downlink frequency domain unit set of the first cell is used only for transmitting common downlink channels or signals.

42. The method according to any one of claims 25-41, characterized in that, The second downlink frequency domain unit set of the first cell corresponds to the first cell, and the second downlink frequency domain unit set of the first cell includes at least one of the following: The second downlink frequency domain cell set of the first cell includes one or more frequency domain cells from the CC; or, The second downlink frequency domain cell set of the first cell includes frequency domain cells that are consecutive; or, In the case where the second downlink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous on each CC, or continuous or discontinuous on different CCs; The second downlink frequency domain cell set of the first cell includes the first downlink frequency domain cell set of the first cell; The second downlink frequency domain cell set of the first cell does not overlap with the first downlink frequency domain cell set of the first cell at all; The second downlink frequency domain cell set of the first cell partially overlaps with the first downlink frequency domain cell set of the first cell.

43. The method as described in claim 42, characterized in that, The second downlink frequency domain cell set of the first cell is not used to transmit common downlink channels or signals; and / or, The second downlink frequency domain unit set of the first cell is used only for transmitting public downlink channels or signals carrying terminal equipment-specific information.

44. The method according to any one of claims 25-43, characterized in that, The first downlink frequency domain cell set of the first cell and the first downlink frequency domain cell set of the second cell partially or completely overlap.

45. The method as described in claim 44, characterized in that, The first cell corresponds to the second downlink frequency domain cell set of the first cell, and the second cell corresponds to the second downlink frequency domain cell set of the second cell. The second downlink frequency domain cell set of the first cell partially or completely overlaps with the second downlink frequency domain cell set of the second cell; or... The second downlink frequency domain cell set of the first cell and the second downlink frequency domain cell set of the second cell do not overlap at all.

46. ​​The method as described in claim 44 or 45, characterized in that, The first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

47. The method according to any one of claims 25-45, characterized in that, The transmission of the first downlink channel or signal through the first downlink frequency domain unit set of the first cell includes: Within the first time window, the first downlink channel or signal is transmitted through the first downlink frequency domain unit set of the first cell; and / or, During the second time window, downlink channels or signals are not transmitted through the first downlink frequency domain unit set of the first cell.

48. The method as described in claim 47, characterized in that, Within the second time window, the first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

49. A terminal device, characterized in that, include: The receiving unit is configured to receive a first downlink channel or signal through a first downlink frequency domain unit set of the first cell; And / or, A transmitting unit is used to transmit a first uplink channel or signal through a first uplink frequency domain unit set of a first cell; The first downlink channel or signal includes the common downlink channel or signal of the first cell.

50. The terminal device as described in claim 49, characterized in that, The first downlink channel or signal includes at least one of the following: Synchronization signal; Synchronization signal block (SSB); The Physical Broadcast Channel (PBCH) carries system messages; The Physical Downlink Shared Channel (PDSCH) carries system messages; Schedule the physical downlink control channel (PDCCH) that carries system messages in the PDSCH; PDSCH carrying paging messages; Schedule the PDCCH carrying the PDSCH paging message; Downlink channels or signals carrying system message change indication information or indication information on whether to receive system messages; A downlink channel or signal carrying an indication of whether to receive a paging message; A downlink channel or signal carrying an indication of whether to receive an SSB.

51. The terminal device as described in claim 49 or 50, characterized in that, The first downlink channel or signal is used to determine at least one of the following: The community identifier of the first community; The cell synchronization information of the first cell; System configuration information of the first cell; The paging configuration information of the first cell; Indicator information on whether to receive system messages from the first cell; Indication information regarding whether to receive the paging message from the first cell; Whether to receive the SSB indication information of the first cell.

52. The terminal device as described in claim 51, characterized in that, The system configuration information of the first cell is used to determine at least one of the following: Information on the first downlink frequency domain cell set of the first cell; Information on the first uplink frequency domain cell set of the first cell; Information on the second downlink frequency domain cell set of the first cell; Information on the second uplink frequency domain cell set of the first cell; Resource configuration information corresponding to the first uplink channel or signal; Resource configuration information corresponding to the second downlink channel or signal.

53. The terminal device as described in any one of claims 49-52, characterized in that, The first downlink channel or signal does not include downlink channels or signals carrying terminal device-specific information.

54. The terminal device as described in any one of claims 49-53, characterized in that, The first uplink channel or signal includes at least one of the following: Physical Random Access Channel (PRACH); Message A MsgA, wherein MsgA includes PRACH and the Physical Uplink Shared Channel (PUSCH); Uplink wake-up signal UL WUS; Uplink channel or signal carrying scheduling request (SR); The UL WUS is used to request SSB transmission or System Message Block 1 (SIB1) transmission from the first cell.

55. The terminal device as described in any one of claims 49-54, characterized in that, In the case of transmitting the first uplink channel or signal through the first uplink frequency domain unit set of the first cell, The receiving unit is configured to receive a second downlink channel or signal through a target downlink frequency domain unit set; Wherein, the second downlink channel or signal is used to respond to the first uplink channel or signal, and the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell or the second downlink frequency domain unit set of the first cell.

56. The terminal device as described in claim 55, characterized in that, The target set of downlink frequency domain cells is determined based on at least one of the following: The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the absence of a second downlink frequency domain unit set configured for the first cell, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; Without configuring the first indication information, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the case where the first uplink channel or signal includes UL WUS, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device is in an idle or inactive state, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device only supports the first set of functions or capabilities, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first uplink channel or signal includes an uplink channel or signal carrying SR, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the terminal device is in a connected state, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first indication information is configured, the target downlink frequency domain cell set is determined based on the first indication information; The first indication information is determined based on the first downlink channel or signal.

57. The terminal device as described in claim 55 or 56, characterized in that, The second downlink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

58. The terminal device as described in any one of claims 55-57, characterized in that, The second downlink channel or signal includes one of the following: When the first uplink channel or signal includes PRACH, the second downlink channel or signal includes at least one of the following: PDSCH carrying a Random Access Response (RAR) or PDCCH carrying a Scheduled RAR. When the first uplink channel or signal includes MsgA, the second downlink channel or signal includes at least one of the following: PDSCH carrying a back-off RAR or a successful RAR, or PDCCH scheduling a back-off RAR or a successful RAR. When the first uplink channel or signal includes UL WUS, the second downlink channel or signal includes at least one of the following: PDSCH or PDCCH carrying an acknowledgment message, PDSCH carrying RAR, PDCCH scheduling RAR, SSB of the first cell, PDSCH carrying SIB1 of the first cell, and PDCCH scheduling SIB1 of the first cell. When the first uplink channel or signal includes SR, the second downlink channel or signal includes at least one of the following: PDCCH carrying uplink grant, PDCCH carrying downlink grant, and PDSCH carrying terminal device-specific information.

59. The terminal device as described in any one of claims 55-58, characterized in that, The target downlink frequency domain cell set is the second downlink frequency domain cell set of the first cell. The transmitting unit is configured to transmit a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, The receiving unit is configured to receive a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

60. The terminal device as described in any one of claims 55-58, characterized in that, The target downlink frequency domain cell set is the first downlink frequency domain cell set of the first cell. The transmitting unit is configured to transmit a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, The receiving unit is configured to receive a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

61. The terminal device as described in claim 59 or 60, characterized in that, The terminal device supports a second set of functions or capabilities, or a set of non-first functions or capabilities; and / or, The second uplink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

62. The terminal device as described in any one of claims 55-58, characterized in that, The target downlink frequency domain cell set is the first downlink frequency domain cell set of the first cell. The transmitting unit is configured to transmit a second uplink channel or signal through the first uplink frequency domain unit set of the first cell; and / or, The receiving unit is configured to receive a third downlink channel or signal through the first downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

63. The terminal device as described in claim 62, characterized in that, The terminal device only supports the first set of functions or capabilities.

64. The terminal device as described in any one of claims 49-63, characterized in that, The first downlink frequency domain unit set of the first cell includes a frequency domain unit in a carrier CC; or, the frequency domain units in the first downlink frequency domain unit set of the first cell are continuous.

65. The terminal device as described in any one of claims 49-64, characterized in that, The first downlink frequency domain cell set of the first cell is not used to transmit downlink channels or signals carrying terminal equipment-specific information; and / or, The first downlink frequency domain unit set of the first cell is used only for transmitting common downlink channels or signals.

66. The terminal device as described in any one of claims 49-65, characterized in that, The second downlink frequency domain unit set of the first cell corresponds to the first cell, and the second downlink frequency domain unit set of the first cell includes at least one of the following: The second downlink frequency domain cell set of the first cell includes one or more frequency domain cells from the CC; or, The second downlink frequency domain cell set of the first cell includes frequency domain cells that are consecutive; or, In the case where the second downlink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous on each CC, or continuous or discontinuous on different CCs; The second downlink frequency domain cell set of the first cell includes the first downlink frequency domain cell set of the first cell; The second downlink frequency domain cell set of the first cell does not overlap with the first downlink frequency domain cell set of the first cell at all; The second downlink frequency domain cell set of the first cell partially overlaps with the first downlink frequency domain cell set of the first cell.

67. The terminal device as described in claim 66, characterized in that, The second downlink frequency domain cell set of the first cell is not used to transmit common downlink channels or signals; and / or, The second downlink frequency domain unit set of the first cell is used only for transmitting public downlink channels or signals carrying terminal equipment-specific information.

68. The terminal device as described in any one of claims 49-67, characterized in that, The first downlink frequency domain cell set of the first cell and the first downlink frequency domain cell set of the second cell partially or completely overlap.

69. The terminal device as described in claim 68, characterized in that, The first cell corresponds to the second downlink frequency domain cell set of the first cell, and the second cell corresponds to the second downlink frequency domain cell set of the second cell. The second downlink frequency domain cell set of the first cell partially or completely overlaps with the second downlink frequency domain cell set of the second cell; or... The second downlink frequency domain cell set of the first cell and the second downlink frequency domain cell set of the second cell do not overlap at all.

70. The terminal device as described in claim 68 or 69, characterized in that, The first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

71. The terminal device as described in any one of claims 49-69, characterized in that, The receiving unit is further configured to: Within the first time window, the first downlink channel or signal is received through the first downlink frequency domain unit set of the first cell; and / or, During the second time window, downlink channels or signals are not received through the first downlink frequency domain unit set of the first cell.

72. The terminal device as described in claim 71, characterized in that, Within the second time window, the first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

73. A network device, characterized in that, include: A transmitting unit is used to transmit a first downlink channel or signal through a first downlink frequency domain unit set of a first cell; And / or, The receiving unit is used to receive a first uplink channel or signal through the first uplink frequency domain unit set of the first cell; The first downlink channel or signal includes the common downlink channel or signal of the first cell.

74. The network device as described in claim 73, characterized in that, The first downlink channel or signal includes at least one of the following: Synchronization signal; Synchronization signal block (SSB); The Physical Broadcast Channel (PBCH) carries system messages; The Physical Downlink Shared Channel (PDSCH) carries system messages; Schedule the physical downlink control channel (PDCCH) that carries system messages in the PDSCH; PDSCH carrying paging messages; Schedule the PDCCH carrying the PDSCH paging message; Downlink channels or signals carrying system message change indication information or indication information on whether to receive system messages; A downlink channel or signal carrying an indication of whether to receive a paging message; A downlink channel or signal carrying an indication of whether to receive an SSB.

75. The network device as described in claim 73 or 74, characterized in that, The first downlink channel or signal is used to determine at least one of the following: The community identifier of the first community; The cell synchronization information of the first cell; System configuration information of the first cell; The paging configuration information of the first cell; Indicator information on whether to receive system messages from the first cell; Indication information regarding whether to receive the paging message from the first cell; Whether to receive the SSB indication information of the first cell.

76. The network device as described in claim 75, characterized in that, The system configuration information of the first cell is used to determine at least one of the following: Information on the first downlink frequency domain cell set of the first cell; Information on the first uplink frequency domain cell set of the first cell; Information on the second downlink frequency domain cell set of the first cell; Information on the second uplink frequency domain cell set of the first cell; Resource configuration information corresponding to the first uplink channel or signal; Resource configuration information corresponding to the second downlink channel or signal.

77. The network device as described in any one of claims 73-76, characterized in that, The first downlink channel or signal does not include downlink channels or signals carrying terminal device-specific information.

78. The network device as described in any one of claims 73-77, characterized in that, The first uplink channel or signal includes at least one of the following: Physical Random Access Channel (PRACH); Message A MsgA, wherein MsgA includes PRACH and the Physical Uplink Shared Channel (PUSCH); Uplink wake-up signal UL WUS; Uplink channel or signal carrying scheduling request (SR); The UL WUS is used to request SSB transmission or System Message Block 1 (SIB1) transmission from the first cell.

79. The network device as described in any one of claims 73-78, characterized in that, When receiving the first uplink channel or signal through the first uplink frequency domain unit set of the first cell. The transmitting unit is further configured to transmit a second downlink channel or signal through a target downlink frequency domain unit set; Wherein, the second downlink channel or signal is used to respond to the first uplink channel or signal, and the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell or the second downlink frequency domain unit set of the first cell.

80. The network device as described in claim 79, characterized in that, The target set of downlink frequency domain cells is determined based on at least one of the following: The target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the absence of a second downlink frequency domain unit set configured for the first cell, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; Without configuring the first indication information, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; In the case where the first uplink channel or signal includes UL WUS, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device is in an idle or inactive state, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device only supports the first set of functions or capabilities, the target downlink frequency domain unit set is the first downlink frequency domain unit set of the first cell; When the terminal device supports a second set of functions or capabilities or a set of non-first functions or capabilities, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first uplink channel or signal includes an uplink channel or signal carrying SR, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the terminal device is in a connected state, the target downlink frequency domain unit set is the second downlink frequency domain unit set of the first cell; When the first indication information is configured, the target downlink frequency domain cell set is determined based on the first indication information; The first indication information is determined based on the first downlink channel or signal.

81. The network device as described in claim 79 or 80, characterized in that, The second downlink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

82. The network device as described in any one of claims 79-81, characterized in that, The second downlink channel or signal includes one of the following: When the first uplink channel or signal includes PRACH, the second downlink channel or signal includes at least one of the following: PDSCH carrying a Random Access Response (RAR) or PDCCH carrying a Scheduled RAR. When the first uplink channel or signal includes MsgA, the second downlink channel or signal includes at least one of the following: PDSCH carrying a back-off RAR or a successful RAR, or PDCCH scheduling a back-off RAR or a successful RAR. When the first uplink channel or signal includes UL WUS, the second downlink channel or signal includes at least one of the following: PDSCH or PDCCH carrying an acknowledgment message, PDSCH carrying RAR, PDCCH scheduling RAR, SSB of the first cell, PDSCH carrying SIB1 of the first cell, and PDCCH scheduling SIB1 of the first cell. When the first uplink channel or signal includes SR, the second downlink channel or signal includes at least one of the following: PDCCH carrying uplink grant, PDCCH carrying downlink grant, and PDSCH carrying terminal device-specific information.

83. The network device as described in any one of claims 79-82, characterized in that, The target downlink frequency domain cell set is the second downlink frequency domain cell set of the first cell. The receiving unit is configured to receive a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, The transmitting unit is configured to transmit a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

84. The network device as described in any one of claims 79-82, characterized in that, The target downlink frequency domain cell set is the first downlink frequency domain cell set of the first cell. The receiving unit is configured to receive a second uplink channel or signal through the second uplink frequency domain unit set of the first cell; and / or, The transmitting unit is configured to transmit a third downlink channel or signal through the second downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

85. The network device as described in claim 83 or 84, characterized in that, The terminal device supports a second set of functions or capabilities, or a set of non-first functions or capabilities; and / or, The second uplink frequency domain unit set of the first cell is determined based on the system configuration information of the first cell.

86. The network device as described in any one of claims 79-82, characterized in that, The target downlink frequency domain cell set is the first downlink frequency domain cell set of the first cell. The receiving unit is configured to receive a second uplink channel or signal through the first uplink frequency domain unit set of the first cell; and / or, The transmitting unit is used to transmit a third downlink channel or signal through the first downlink frequency domain unit set of the first cell; Wherein, the second uplink channel or signal includes message 3 Msg3 PUSCH, and / or, the third downlink channel or signal includes message 4 Msg4 PDSCH; The first uplink channel or signal includes PRACH, MsgA, or UL WUS; The second downlink channel or signal includes a PDSCH carrying RAR or fallback RAR.

87. The network device as described in claim 86, characterized in that, The terminal device only supports the first set of functions or capabilities.

88. The network device as described in any one of claims 73-87, characterized in that, The first downlink frequency domain unit set of the first cell includes a frequency domain unit in a carrier CC; or, the frequency domain units in the first downlink frequency domain unit set of the first cell are continuous.

89. The network device as described in any one of claims 73-88, characterized in that, The first downlink frequency domain cell set of the first cell is not used to transmit downlink channels or signals carrying terminal equipment-specific information; and / or, The first downlink frequency domain unit set of the first cell is used only for transmitting common downlink channels or signals.

90. The network device as described in any one of claims 73-89, characterized in that, The second downlink frequency domain unit set of the first cell corresponds to the first cell, and the second downlink frequency domain unit set of the first cell includes at least one of the following: The second downlink frequency domain cell set of the first cell includes one or more frequency domain cells in the CC. The second downlink frequency domain cell set of the first cell includes frequency domain cells that are continuous; In the case where the second downlink frequency domain unit set of the first cell includes frequency domain units from multiple CCs, the frequency domain units included in the second downlink frequency domain unit set of the first cell are continuous on each CC, or continuous or discontinuous on different CCs; The second downlink frequency domain cell set of the first cell includes the first downlink frequency domain cell set of the first cell; The second downlink frequency domain cell set of the first cell does not overlap with the first downlink frequency domain cell set of the first cell at all; The second downlink frequency domain cell set of the first cell partially overlaps with the first downlink frequency domain cell set of the first cell.

91. The network device as described in claim 90, characterized in that, The second downlink frequency domain cell set of the first cell is not used to transmit common downlink channels or signals; and / or, The second downlink frequency domain unit set of the first cell is used only for transmitting public downlink channels or signals carrying terminal equipment-specific information.

92. The network device as described in any one of claims 73-91, characterized in that, The first downlink frequency domain cell set of the first cell and the first downlink frequency domain cell set of the second cell partially or completely overlap.

93. The network device as described in claim 92, characterized in that, The first cell corresponds to the second downlink frequency domain cell set of the first cell, and the second cell corresponds to the second downlink frequency domain cell set of the second cell. The second downlink frequency domain cell set of the first cell partially or completely overlaps with the second downlink frequency domain cell set of the second cell; or... The second downlink frequency domain cell set of the first cell and the second downlink frequency domain cell set of the second cell do not overlap at all.

94. The network device as described in claim 92 or 93, characterized in that, The first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

95. The network device as described in any one of claims 73-93, characterized in that, The transmitting unit is used for: Within the first time window, the first downlink channel or signal is transmitted through the first downlink frequency domain unit set of the first cell; and / or, During the second time window, downlink channels or signals are not transmitted through the first downlink frequency domain unit set of the first cell.

96. The network device as described in claim 95, characterized in that, Within the second time window, the first downlink frequency domain unit set of the second cell is used to transmit the common downlink channel or signal of the second cell.

97. A terminal device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or send signals so that the terminal device performs network functions as described in any one of claims 1-24.

98. A network device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the network device performs the network device described in any one of claims 25-48.

99. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the device to perform the network device as described in any one of claims 1-48.

100. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the network device as described in any one of claims 1-48.

101. A computer-readable storage medium, characterized in that, It stores a program that causes a computer to execute the network device as described in any one of claims 1-48.

102. A computer program product, characterized in that, Includes a program that causes a computer to perform the network device as described in any one of claims 1-48.

103. A computer program, characterized in that, The computer program causes the computer to perform the network device as described in any one of claims 1-48.

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