Method, terminal device and network device for wireless communication

Abstract

This application provides a wireless communication method, a terminal device, and a network device. The terminal device reports its maximum supported bandwidth capability information, and the network device configures the bandwidth portion for data transmission for the terminal device based on the maximum supported bandwidth capability information. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve power saving. The method includes: the terminal device sending its maximum supported bandwidth capability information to the network device.

Description

Technical Field

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

[0002] In 5G New Radio (NR) communication, the maximum channel bandwidth is 100MHz for low-frequency carriers and 400MHz for high-frequency carriers. 5G NR communication places high demands on the power consumption of terminal devices. If terminal devices continuously transmit data using the maximum channel bandwidth of either low-frequency or high-frequency carriers, it will inevitably result in significant energy loss, failing to meet the power consumption requirements of 5G NR communication. Summary of the Invention

[0003] This application provides a wireless communication method, a terminal device, and a network device. The terminal device reports its maximum supported bandwidth capability information, and the network device can configure the bandwidth portion for data transmission for the terminal device based on the maximum supported bandwidth capability information. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve power saving.

[0004] In a first aspect, embodiments of this application provide a method for wireless communication, including:

[0005] The terminal device sends information about the maximum bandwidth capacity it supports to the network device.

[0006] Therefore, in the wireless communication method of this application embodiment, the terminal device reports its maximum supported bandwidth capability information, and the network device can configure the bandwidth portion of the data transmission for the terminal device according to the maximum supported bandwidth capability information of the terminal device. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve the purpose of saving power.

[0007] Optionally, in one implementation of the first aspect, the method further includes:

[0008] The terminal device sends an indication message to the network device, which indicates the frequency range that the terminal device prefers to use, and / or frequency priority information.

[0009] Furthermore, the terminal device reports indications of the preferred frequency range and / or frequency priority information. The network device can configure the bandwidth portion for data transmission for the terminal device based on the maximum bandwidth capacity supported by the terminal device, the preferred frequency range, and / or frequency priority information. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve power saving.

[0010] Optionally, in one implementation of the first aspect, the method further includes:

[0011] The terminal device receives a bandwidth portion BWP list and configuration information sent by the network device. The BWP list includes at least one BWP, the maximum bandwidth of which is less than or equal to the maximum bandwidth capability supported by the terminal device. The configuration information indicates the BWP in the BWP list that transmits data.

[0012] The terminal device selects a BWP from the BWP list based on this configuration information for data transmission.

[0013] Secondly, embodiments of this application provide a method for wireless communication, including:

[0014] The network device receives information from the terminal device regarding the maximum bandwidth capability supported by the terminal device.

[0015] The network device configures a bandwidth-partial BWP list and configuration information for the terminal device based on the maximum bandwidth capability information supported by the terminal device. The BWP list includes at least one BWP, the maximum bandwidth of which is less than or equal to the maximum bandwidth capability information supported by the terminal device. The configuration information indicates the BWPs in the BWP list that transmit data.

[0016] Therefore, in the wireless communication method of this application embodiment, the terminal device reports its maximum supported bandwidth capability information, and the network device can configure the bandwidth portion of the data transmission for the terminal device according to the maximum supported bandwidth capability information of the terminal device. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve the purpose of saving power.

[0017] Alternatively, in one implementation of the second aspect, the method further includes:

[0018] The network device receives indication information sent by the terminal device, which indicates the frequency range that the terminal device prefers to use, and / or frequency priority information;

[0019] The network device configures a bandwidth-partial BWP list for the terminal device based on the maximum bandwidth capacity information supported by the terminal device, including:

[0020] The network device configures the BWP list for the terminal device based on the maximum bandwidth capacity information supported by the terminal device and the indication information.

[0021] Furthermore, the terminal device reports indications of the preferred frequency range and / or frequency priority information. The network device can configure the bandwidth portion for data transmission for the terminal device based on the maximum bandwidth capacity supported by the terminal device, the preferred frequency range, and / or frequency priority information. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve power saving.

[0022] Optionally, in one implementation of the second aspect, the network device configures a BWP list for the terminal device based on the maximum bandwidth capability information supported by the terminal device, including:

[0023] The network device configures the BWP list and configuration information for the terminal device via Radio Resource Control (RRC) dedicated signaling.

[0024] Thirdly, embodiments of this application provide a terminal device that can execute the method in the first aspect or any optional implementation of the first aspect, including modules or units.

[0025] Fourthly, embodiments of this application provide a network device that can execute the methods in the second aspect or any optional implementation of the second aspect, including modules or units.

[0026] Fifthly, a terminal device is provided, comprising a processor, a memory, and a communication interface. The processor is connected to the memory and the communication interface. The memory is used to store instructions, the processor is used to execute the instructions, and the communication interface is used to communicate with other network elements under the control of the processor. When the processor executes the instructions stored in the memory, the execution causes the processor to perform the methods of the first aspect or any possible implementation thereof.

[0027] In a sixth aspect, a network device is provided, comprising a processor, a memory, and a communication interface. The processor is connected to the memory and the communication interface. The memory is used to store instructions, the processor is used to execute the instructions, and the communication interface is used to communicate with other network elements under the control of the processor. When the processor executes the instructions stored in the memory, the execution causes the processor to perform the methods of the second aspect or any possible implementation thereof.

[0028] In a seventh aspect, a computer storage medium is provided, wherein program code is stored therein, the program code being used to instruct a computer to execute the method of the first aspect or any possible implementation thereof.

[0029] Eighthly, a computer storage medium is provided, which stores program code for instructing a computer to execute the method of the second aspect or any possible implementation thereof.

[0030] Ninthly, a computer program product including instructions is provided, which, when run on a computer, causes the computer to perform the methods described in the above aspects. Attached Figure Description

[0031] Figure 1 This is a schematic diagram illustrating an application scenario of an embodiment of this application.

[0032] Figure 2 This is a schematic flowchart of a wireless communication method according to an embodiment of this application.

[0033] Figure 3 This is a schematic flowchart of another wireless communication method according to an embodiment of this application.

[0034] Figure 4 This is a schematic diagram of a BWP provided according to an embodiment of this application.

[0035] Figure 5 This is a schematic diagram of another BWP provided according to an embodiment of this application.

[0036] Figure 6 This is a schematic diagram of another BWP provided according to an embodiment of this application.

[0037] Figure 7 This is a schematic block diagram of a terminal device according to an embodiment of this application.

[0038] Figure 8 This is a schematic block diagram of a network device according to an embodiment of this application.

[0039] Figure 9 A schematic block diagram of a wireless communication device provided in an embodiment of this application is shown.

[0040] Figure 10 This is a schematic structural diagram of a system chip according to an embodiment of this application. Detailed Implementation

[0041] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0042] The technical solutions of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, or 5G communication system, etc.

[0043] The terminal device in this application embodiment can refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a 5G network, or terminal device in a future evolved Public Land Mobile Network (PLMN), etc., and is not limited to this application embodiment.

[0044] This application describes various embodiments in conjunction with access network equipment. The network equipment in the embodiments of this application can be a device for communicating with terminal devices. This network equipment can be an evolved NodeB (eNB or eNodeB) in an LTE system, a radio controller in a Cloud Radio Access Network (CRAN) scenario, or a relay station, access point, vehicle-mounted equipment, wearable device, Next Generation Evolutionary NodeB (NG-eNB), and access network equipment in 5G networks (e.g., gNB), or access network equipment in future evolved Public Land Mobile Network (PLMN) networks, etc. The embodiments of this application are not limited to these categories.

[0045] This application describes various embodiments in conjunction with core network equipment. The core network equipment in the embodiments of this application can be a device that communicates with access network equipment. This core network equipment can be a 5G core network device, such as an Access and Mobility Management Function (AMF), or an Evolved Packet Core (EPC) device, such as a Mobility Management Entity (MME).

[0046] Figure 1 An exemplary embodiment shows a network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0047] Optionally, the wireless communication system 100 may also include other network entities such as a network controller, a mobility management entity (MME), and an access and mobility management function (AMF), which are not limited in this application embodiment.

[0048] Furthermore, various aspects or features of this application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, various media capable of storing, containing, and / or carrying instructions and / or data.

[0049] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0050] Figure 2 This is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application. Method 200 can optionally be applied to... Figure 1 The system shown is not limited to this. Method 200 includes at least some of the following.

[0051] 210. The terminal device sends information about the maximum bandwidth capability it supports to the network device.

[0052] Optionally, before transmitting data, the terminal device sends information about the maximum bandwidth capacity it supports to the network device.

[0053] For example, when a terminal device initially connects to a network device, it sends information about the maximum bandwidth capability it supports to the network device.

[0054] Optionally, the network device configures a Band Width Part (BWP) list and configuration information for the terminal device based on the maximum bandwidth capability information supported by the terminal device. The BWP list includes at least one BWP, the maximum bandwidth of which is less than or equal to the maximum bandwidth capability information supported by the terminal device. The configuration information indicates the BWPs in the BWP list that transmit data.

[0055] Optionally, BWP supports adjustable terminal device bandwidth to achieve terminal device power optimization. At the same time, it can support frequency division multiple access (FDMA) reuse of different air interface access technologies.

[0056] Optionally, the method 200 further includes:

[0057] The terminal device sends an indication message to the network device, which indicates the frequency range that the terminal device prefers to use, and / or frequency priority information.

[0058] For example, terminal devices preferentially use the 50MHz to 100MHz frequency range.

[0059] For example, terminal devices prioritize the use of low frequencies.

[0060] For example, when a terminal device needs to perform Ultra-Reliable and Low-Latency Communication (URLLC) services, it will prioritize the use of high frequencies.

[0061] Optionally, the network device configures the BWP list and configuration information for the terminal device based on the maximum bandwidth capability information supported by the terminal device and the indication information.

[0062] Alternatively, the BWP list can directly carry this configuration information.

[0063] Optionally, the method 200 further includes:

[0064] The terminal device receives the BWP list and configuration information sent by the network device;

[0065] The terminal device selects a BWP from the BWP list based on this configuration information for data transmission.

[0066] Therefore, in the wireless communication method of this application embodiment, the terminal device reports its maximum supported bandwidth capability information, and the network device can configure the bandwidth portion of the data transmission for the terminal device according to the maximum supported bandwidth capability information of the terminal device. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve the purpose of saving power.

[0067] Furthermore, the terminal device reports indications of the preferred frequency range and / or frequency priority information. The network device can configure the bandwidth portion for data transmission for the terminal device based on the maximum bandwidth capacity supported by the terminal device, the preferred frequency range, and / or frequency priority information. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve power saving.

[0068] Figure 3 This is a schematic flowchart of a wireless communication method 300 according to an embodiment of this application. Method 300 can optionally be applied to... Figure 1 The system shown is not limited to this. Method 300 includes at least some of the following.

[0069] 310. The network device receives information from the terminal device regarding the maximum bandwidth capability supported by the terminal device.

[0070] 320. The network device configures a bandwidth portion BWP list and configuration information for the terminal device based on the maximum bandwidth capability information supported by the terminal device. The BWP list includes at least one BWP, the maximum bandwidth of which is less than or equal to the maximum bandwidth capability information supported by the terminal device. The configuration information indicates the BWPs in the BWP list that transmit data.

[0071] Optionally, the method 300 further includes:

[0072] The network device receives indication information sent by the terminal device, which indicates the frequency range that the terminal device prefers to use, and / or frequency priority information.

[0073] Optionally, the network device configures the BWP list for the terminal device based on the maximum bandwidth capability information supported by the terminal device and the indication information.

[0074] Optionally, the network device configures the BWP list and configuration information for the terminal device via Radio Resource Control (RRC) dedicated signaling.

[0075] For example, such as Figure 4As shown, the terminal device has a high speed, and the network device has allocated a larger bandwidth (BWP 1) to the terminal device within the available bandwidth (Overall Carrier).

[0076] For example, such as Figure 5 As shown, the terminal device has a very low speed, and the network device has configured a smaller bandwidth for the terminal device in the Overall Carrier, BWP 2.

[0077] For example, such as Figure 6 As shown, if the terminal device supports high speed or operates in Carrier Aggregation (CA) mode, multiple BWPs can be configured, namely BWP 1 and BWP 2.

[0078] It should be understood that the description in wireless communication method 300 can be referred to the relevant description of the corresponding steps in wireless communication method 200, and for the sake of brevity, it will not be repeated here.

[0079] Therefore, in the wireless communication method of this application embodiment, the terminal device reports its maximum supported bandwidth capability information, and the network device can configure the bandwidth portion of the data transmission for the terminal device according to the maximum supported bandwidth capability information of the terminal device. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve the purpose of saving power.

[0080] Furthermore, the terminal device reports indications of the preferred frequency range and / or frequency priority information. The network device can configure the bandwidth portion for data transmission for the terminal device based on the maximum bandwidth capacity supported by the terminal device, the preferred frequency range, and / or frequency priority information. Thus, the terminal device can transmit data within a suitable bandwidth range to achieve power saving.

[0081] Figure 7 This is a schematic block diagram of a terminal device 400 according to an embodiment of this application. Figure 7 As shown, the terminal device 400 includes:

[0082] The sending unit 410 is used to send information about the maximum bandwidth capability supported by the terminal device to the network device.

[0083] Optionally, the transmitting unit 410 is further configured to transmit indication information to the network device, the indication information being used to indicate the frequency range preferred by the terminal device, and / or frequency priority information.

[0084] Optionally, the terminal device 400 also includes:

[0085] The receiving unit 420 is configured to receive a bandwidth portion BWP list and configuration information sent by the network device. The BWP list includes at least one BWP, the maximum bandwidth of which is less than or equal to the maximum bandwidth capability supported by the terminal device. The configuration information indicates the BWPs in the BWP list that transmit data.

[0086] The processing unit 430 is used to select a BWP from the BWP list based on the configuration information for data transmission.

[0087] It should be understood that the above and other operations and / or functions of the various modules in a terminal device 400 according to an embodiment of this application are respectively for implementing Figure 2 The corresponding procedures for the terminal devices in Method 200 are not described in detail here for the sake of brevity.

[0088] Figure 8 This is a schematic block diagram of a network device 500 according to an embodiment of this application. Figure 8 As shown, the network device 500 includes:

[0089] The receiving unit 510 is used to receive the maximum bandwidth capability information supported by the terminal device sent by the terminal device.

[0090] The processing unit 520 is configured to configure a bandwidth portion BWP list and configuration information for the terminal device based on the maximum bandwidth capability information supported by the terminal device. The BWP list includes at least one BWP, the maximum bandwidth of which is less than or equal to the maximum bandwidth capability information supported by the terminal device. The configuration information indicates the BWPs in the BWP list that transmit data.

[0091] Optionally, the receiving unit 510 is further configured to receive indication information sent by the terminal device, the indication information being used to indicate the frequency range preferred by the terminal device, and / or frequency priority information;

[0092] The processing unit 520 is also configured to configure the BWP list for the terminal device based on the maximum bandwidth capability information supported by the terminal device and the indication information.

[0093] Optionally, the processing unit 520 is also configured to configure the BWP list and configuration information for the terminal device via Radio Resource Control (RRC) dedicated signaling.

[0094] It should be understood that the above and other operations and / or functions of the various modules in a network device 500 according to an embodiment of this application are respectively for implementing Figure 3 The corresponding procedures for network devices in Method 300 are omitted here for the sake of brevity.

[0095] Figure 9 A schematic block diagram of a wireless communication device 600 provided in an embodiment of this application is shown. The device 600 includes:

[0096] Memory 610 is used to store a program, which includes code;

[0097] Transceiver 620 is used for communication with other devices;

[0098] Processor 630 is used to execute program code in memory 610.

[0099] Optionally, transceiver 620 is used to perform specific signal transmission and reception under the drive of processor 630.

[0100] Optionally, when the code is executed, the processor 630 can also implement Figure 2 The various operations performed by the terminal device in method 200 are not described in detail here for the sake of brevity. In this case, the device 600 can be a terminal device, such as a mobile phone.

[0101] Optionally, when the code is executed, the processor 630 can implement Figure 3 The various operations performed by the network device in method 300 are omitted here for brevity. In this case, the device 600 can be a network device, such as a base station.

[0102] It should be understood that, in the embodiments of this application, the processor 630 may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), off-the-shelf 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, etc.

[0103] The memory 610 may include read-only memory and random access memory, and provides instructions and data to the processor 630. A portion of the memory 610 may also include non-volatile random access memory. For example, the memory 610 may also store device type information.

[0104] Transceiver 620 can be used to implement signal transmission and reception functions, such as frequency modulation and demodulation functions, or up-conversion and down-conversion functions.

[0105] In implementation, at least one step of the above method can be completed by the integrated logic circuitry in the hardware of the processor 630, or the integrated logic circuitry can complete the at least one step under the drive of software instructions. Therefore, the wireless communication device 600 can be a chip or a chipset. The steps of the method disclosed in the embodiments of this application can be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor 630 reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed descriptions are not provided here.

[0106] Figure 10 This is a schematic structural diagram of a system chip 700 according to an embodiment of this application. Figure 10 The system chip 700 includes an input interface 701, an output interface 702, a processor 703, and a memory 704, which are connected by an internal communication connection line. The processor 703 is used to execute the code in the memory 704.

[0107] Optionally, when the code is executed, the processor 703 implements the method executed by the terminal device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0108] Optionally, when the code is executed, the processor 703 implements the method executed by the network device in the method embodiment. For the sake of brevity, further details are omitted here.

[0109] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another 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 accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0110] It should be understood that 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.

[0111] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0112] 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, comprising: The terminal device sends information about the maximum bandwidth capability it supports to the network device. The terminal device receives a bandwidth portion BWP list and configuration information sent by the network device. The BWP list includes at least one BWP, and the configuration information indicates the BWP in the BWP list used for data transmission. as well as The terminal device selects a BWP from the BWP list based on the configuration information and performs data transmission on the selected BWP. The method is characterized in that it further includes: The terminal device sends an indication message to the network device, the indication message being used to indicate the frequency range and frequency priority information that the terminal device should use preferentially.

2. The method according to claim 1, characterized in that, The maximum bandwidth of the at least one BWP is less than or equal to the maximum bandwidth capability information supported by the terminal device.

3. A method for wireless communication, comprising: The network device receives information from the terminal device regarding the maximum bandwidth capability supported by the terminal device. The network device configures a bandwidth-partial BWP list and configuration information for the terminal device based on the maximum bandwidth capability information supported by the terminal device. The BWP list includes at least one BWP, and the configuration information indicates the BWP in the BWP list used for data transmission. The terminal device selects a BWP from the BWP list based on the configuration information and performs data transmission on the selected BWP. The method is characterized in that it further includes: The network device receives indication information sent by the terminal device, the indication information being used to indicate the frequency range and frequency priority information that the terminal device will preferentially use; The network device configures a bandwidth portion BWP list for the terminal device based on the maximum bandwidth capability information supported by the terminal device, including: The network device configures the BWP list for the terminal device based on the maximum bandwidth capability information supported by the terminal device and the indication information.

4. The method according to claim 3, characterized in that, The network device configures a BWP list for the terminal device based on the maximum bandwidth capability information supported by the terminal device, including: The network device configures the BWP list and configuration information for the terminal device through Radio Resource Control (RRC) dedicated signaling.

5. A terminal device, comprising: The sending unit is used to send the maximum bandwidth capability information supported by the terminal device to the network device; A receiving unit is configured to receive a bandwidth portion BWP list and configuration information sent by the network device, wherein the BWP list includes at least one BWP and the configuration information indicates the BWP in the BWP list used for data transmission; as well as The processing unit is configured to select a BWP from the BWP list based on the configuration information and perform data transmission on the selected BWP. The feature is that the sending unit is further configured to: send indication information to the network device, the indication information being used to indicate the frequency range and frequency priority information preferentially used by the terminal device.

6. The terminal device according to claim 5, characterized in that, The maximum bandwidth of the at least one BWP is less than or equal to the maximum bandwidth capability information supported by the terminal device.

7. A network device, comprising: The receiving unit is used to receive the maximum bandwidth capability information supported by the terminal device sent by the terminal device. The processing unit is configured to configure a bandwidth-partial BWP list and configuration information for the terminal device based on the maximum bandwidth capability information supported by the terminal device. The BWP list includes at least one BWP, and the configuration information indicates the BWPs in the BWP list used for data transmission. The processing unit is also configured to allow the terminal device to select a BWP from the BWP list based on the configuration information and perform data transmission on the selected BWP. The receiving unit is further configured to receive indication information sent by the terminal device, the indication information being used to indicate the frequency range and frequency priority information preferentially used by the terminal device; The processing unit is further configured to configure the BWP list for the terminal device based on the maximum bandwidth capability information supported by the terminal device and the indication information.

8. The network device according to claim 7, characterized in that, The processing unit is further configured to configure the BWP list and the configuration information for the terminal device via Radio Resource Control (RRC) dedicated signaling.

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