BWP switching method, base station and terminal

Abstract

The invention discloses a BWP switching method, a base station and a terminal. The method comprises the following steps: a base station configures a sensing BWP for sensing signal transmission or sensing signal reception and a data BWP for data transmission for a terminal; the base station sends switching indication information to the terminal; wherein the switching indication information at least comprises dynamic BWP switching, semi-persistent BWP switching and periodic BWP switching; and under the condition that the terminal does not support the sensing signal transmission at the sensing BWP and the data transmission at the data BWP at the same time, the terminal indicates the switching of the sensing BWP and the data BWP through the switching indication information. According to the technical scheme, the problem that a switching mechanism of the sensing signal and the data transmission signal is unknown can be solved, rapid switching between data transmission and sensing signal transmission is achieved, and switching time delay between the data transmission and the sensing signal transmission is reduced.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a BWP handover method, base station, and terminal. Background Technology

[0002] Currently, many emerging businesses rely on powerful sensing capabilities to provide fast and accurate services. However, traditional radar technology is not only costly to deploy but also inflexible in adapting to diverse service needs. Against this backdrop, Integrated Sensing and Communication (ISAC) technology has become a key factor in improving service quality. ISAC technology extends the functionality of networks from simple "hearing and speaking" to more advanced "seeing and feeling," creating a digital perception that enhances human intelligence. Through ISAC, networks and user devices can perceive changes in their surroundings and share this information through communication.

[0003] Because the requirements for sensing signals and data transmission signals may differ in terms of waveform, frequency, bandwidth, and power, when implementing ISAC in the same system, it is advisable to perform data transmission and sensing operations separately on different Bandwidth Parts (BWPs) to achieve low coupling and rapid switching between the two. Current technologies and protocols do not explicitly specify how sensing signals are transmitted, or how to switch between sensing and data transmission signals. Summary of the Invention

[0004] In view of this, the present invention provides a BWP handover method, base station and terminal, which can solve the problem of unclear handover mechanism between sensing signal and data transmission signal, realize fast handover between data transmission and sensing operation, and reduce the handover latency between the two.

[0005] According to one aspect of the present invention, an embodiment of the present invention provides a BWP switching method, the switching method comprising:

[0006] The base station configures the terminal with a sensing BWP for sensing signal transmission or sensing signal reception, and a data BWP for data transmission;

[0007] The base station sends handover indication information to the terminal; wherein, the handover indication information includes at least: dynamic BWP handover, semi-persistent BWP handover, and periodic BWP handover;

[0008] If the terminal does not support simultaneous sensing signal transmission on the sensing BWP and data transmission on the data BWP, the terminal indicates the switching of the sensing BWP and the data BWP through the switching indication information.

[0009] According to another aspect of the present invention, embodiments of the present invention also provide a base station, the base station comprising:

[0010] At least one processor; and a memory communicatively connected to said at least one processor; wherein,

[0011] The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the BWP switching method as described in any one of the embodiments of the present invention.

[0012] According to another aspect of the present invention, embodiments of the present invention also provide a terminal, the terminal comprising:

[0013] At least one processor; and a memory communicatively connected to said at least one processor; wherein,

[0014] The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the BWP switching method as described in any one of the embodiments of the present invention.

[0015] The technical advantage of this invention lies in that, by configuring a sensing BWP for sensing signal transmission or reception and a data BWP for data transmission on a terminal via a base station, the sensing signal transmission requirements are met. The base station then sends handover indication information to the terminal. This handover indication information includes at least three types: dynamic BWP handover, semi-persistent BWP handover, and periodic BWP handover. Even when the terminal does not support simultaneous sensing signal transmission on the sensing BWP and data transmission on the data BWP, the terminal uses the handover indication information to indicate the handover between the sensing BWP and the data BWP. This solves the problem of unclear handover mechanisms between sensing and data transmission signals, enabling rapid handover between data transmission and sensing operations, and reducing the handover latency between the two.

[0016] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A flowchart illustrating a BWP switching method according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a terminal receiving a sensing signal according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a base station receiving a sensing signal according to an embodiment of the present invention;

[0021] Figure 4 A flowchart illustrating another BWP switching method provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a base station or terminal provided in an embodiment of the present invention. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] In one embodiment, Figure 1This is a flowchart of a BWP handover method provided in an embodiment of the present invention. This embodiment is applicable to time synchronization situations, and the method can be executed by a base station and a terminal.

[0026] like Figure 1 As shown, the BWP switching method in this embodiment specifically includes the following steps:

[0027] S110, The base station configures the terminal with a sensing BWP for sensing signal transmission or sensing signal reception, and a data BWP for data transmission.

[0028] In this embodiment, the sensing BWP, also known as the sensing BWP, is the BWP configured by the base station for the terminal to sense signal transmission or reception. The data BWP, also known as the data BWP, is the BWP used for data transmission.

[0029] In this embodiment, due to various reasons, such as the sensing signal using different waveforms or encodings, or different network configurations for time and frequency resources, the signals used for data transmission and the signals used for sensing may be located on different BWPs. Therefore, the base station can configure a dedicated BWP for the UE for the transmission or reception of sensing signals, which can be called a sensing BWP.

[0030] In this embodiment, the base station can configure a sensing BWP for the terminal for sensing signal transmission or sensing signal reception via Radio Resource Control (RRC) signaling (e.g., an RRC reconfiguration message). For data transmission, the data BWP can be configured not only via RRC signaling but also via dynamic indication (e.g., Downlink Control Information (DCI) or Media Access Control (MAC) Layer Control Element (MAC CE)). After configuring the sensing BWP and data BWP, the terminal transmits or receives sensing signals via the sensing BWP and transmits data via the data BWP. It should be noted that whether the base station configures sensing signals or sensing resources for the terminal depends on the functions supported by the network and the capabilities of the UE. In other words, whether the base station configures sensing signals or sensing resources for the terminal depends on whether the terminal has sensing capabilities. If the base station supports sensing functionality and the terminal has sensing capabilities, the base station can configure the UE accordingly.

[0031] In one embodiment, when a sensing BWP meets a first condition, the terminal performs a first operation; wherein the first condition includes: a sensing BWP is activated, or the activated sensing BWP is a downlink sensing BWP; the first operation includes at least one of the following: starting a sensing activation timer; using the currently activated sensing BWP to listen to or receive downlink sensing signals; prohibiting listening to the Physical Downlink Control Channel (PDCCH) on the activated sensing BWP; prohibiting listening to the Downlink-Shared Channel (DL-SCH) on the activated sensing BWP. In one embodiment, when a sensing BWP meets a second condition, the terminal performs a second operation; wherein the second condition includes: a sensing BWP is activated, or the sensing BWP is an uplink sensing BWP; the second operation includes at least one of the following: starting a sensing activation timer; using the currently activated sensing BWP to transmit uplink sensing signals; prohibiting the transmission of uplink signals on the activated sensing BWP.

[0032] The sensing activation timer, also known as the sensing-inactivity timer, can be used to indicate the duration of a sensing BWP.

[0033] In this embodiment, the sensing BWP configured by the base station for the terminal needs to comply with the conventions defined by the 3GPP protocol. The base station and the terminal will perform sensing-related processing in accordance with the conventions defined by the 3GPP protocol. These conventions are typically defined through the MAC layer protocol.

[0034] In this embodiment, when a sensing BWP meets activation or specific uplink / downlink conditions, the UE performs corresponding operations, such as starting a sensing-inactivityTimer, transmitting and receiving sensing signals, etc., and prohibiting the transmission and reception of some other signals. Specifically, if a sensing BWP is activated, and this sensing BWP is a downlink BWP, the terminal starts a sensing activation timer. The terminal listens for / receives downlink sensing signals on the activated sensing BWP, but does not listen for PDCCH or DL-SCH on this BWP. If a sensing BWP is activated, and that sensing BWP is an uplink BWP, the terminal starts a sensing-inactivity timer, sends uplink sensing signals on the activated sensing BWP, and does not listen for uplink signals such as Uplink Shared Channel (UL-SCH), Random Access Channel (RACH), Channel State Information (CSI), Sounding Reference Signal (SRS), or Physical Uplink Control Channel (PUCCH) on that BWP.

[0035] In one embodiment, the number of configured sensing BWPs and data BWPs is one or more; when the number of configured BWPs is multiple, and a target sensing BWP and a target data BWP need to be selected from multiple sensing BWPs and data BWPs for BWP handover, the base station configures the data BWP or sensing BWP to be switched through RRC messages.

[0036] In this embodiment, the base station may configure one or more data BWPs for the UE. When the UE switches from the sensing BWP to a data BWP, it needs to determine which data BWP to switch to. The network can configure the data BWP to which the sensing BWP will default to (e.g., configuring the first Active Downlink Data BWP-Id or first Active Uplink Data BWP-Id via RRC messages). When the UE determines which data BWP to switch to from the sensing BWP (e.g., sensing-InactivityTimer timeout or other reasons), it will switch to the configured default data BWP.

[0037] S120. The base station sends handover indication information to the terminal; wherein the handover indication information includes at least: dynamic BWP handover, semi-persistent BWP handover, and periodic BWP handover.

[0038] In this embodiment, the base station sends handover indication information to the terminal. This handover indication information may include, but is not limited to, the handover process between the sensing BWP and data BWP configured by the terminal. This handover process may be dynamic, semi-persistent, or periodic, i.e., dynamic BWP handover, semi-persistent BWP handover, and periodic BWP handover. In this embodiment, dynamic BWP handover can be understood as the base station instructing the terminal to activate or deactivate a sensing BWP through explicit downlink control information (i.e., DCI scheduling signaling). Semi-persistent BWP handover can be understood as instructing the terminal to activate or deactivate a sensing BWP through the sensing BWP list configured by the base station for the terminal and downlink control information. Periodic BWP handover can be the base station configuring target parameters for the terminal through RRC signaling. For example, it may be the sensing BWP period, the sensing BWP duration, or a pattern to indicate the sensing BWP to be activated or deactivated by the terminal.

[0039] S130. If the terminal does not support simultaneous transmission of sensing signals on the sensing BWP and transmission of data on the data BWP, the terminal instructs the switching of the sensing BWP and the data BWP through a switching instruction message.

[0040] In this embodiment, the terminal may need to perform sensing operations on the sensing BWP and also transmit data on the data BWP (referred to here as the data BWP) (e.g., receive sensing commands or send sensing results back to the base station). If the terminal does not support simultaneous data transmission and sensing signal transmission on these two BWPs, it may be necessary to switch between the sensing BWP and the data BWP, for example, switching from the data transmission BWP to the sensing BWP, or vice versa.

[0041] In this embodiment, the handover between the sensing BWP and the data BWP can be initiated by the terminal through a sensing activation timer pre-configured by the base station or by handover instruction information. In some embodiments, during the start or operation of the sensing activation timer, the terminal is in a state where the sensing BWP is active, used to send or receive sensing signals; after the sensing activation timer expires, the terminal switches from the sensing BWP to the data BWP used for data transmission. In other embodiments, during dynamic BWP handover, the base station adds a new field to the physical layer DCI or MAC layer MAC CE to indicate which sensing BWP the terminal will activate or deactivate for handover, and transmits or listens for sensing signals during sensing BWP activation and transmits signal data during data BWP. During semi-persistent BWP handover, the base station configures a sensing BWP list for the terminal, and uses the sensing BWP list and MAC CE to instruct the terminal to activate or deactivate a sensing BWP for handover, and transmits or listens for sensing signals during sensing BWP activation and transmits signal data during data BWP. During periodic BWP handover, the base station configures target parameters for the terminal via RRC signaling to instruct the terminal to activate or deactivate a sensing BWP for handover, and transmits or listens for sensing signals during sensing BWP activation and transmits signal data during data BWP.

[0042] The technical solution of this invention configures a sensing BWP for a terminal for sensing signal transmission or sensing signal reception, and a data BWP for data transmission, through a base station to meet the sensing signal transmission requirements. The base station sends handover indication information to the terminal. The handover indication information includes at least dynamic BWP handover, semi-persistent BWP handover, and periodic BWP handover. When the terminal does not support simultaneous sensing signal transmission on the sensing BWP and data transmission on the data BWP, the terminal performs handover between the sensing BWP and the data BWP through the handover indication information. This solves the problem of unclear handover mechanism between sensing signal and data transmission signal, realizes fast handover between data transmission and sensing operation, and reduces the handover latency between the two.

[0043] In one embodiment, the method further includes:

[0044] The terminal performs the handover between the sensing BWP and the data BWP based on the sensing activation timer pre-configured by the base station.

[0045] The sensing activation timer is configured by the base station via RRC signaling.

[0046] In this embodiment, the terminal performs a handover between the sensing BWP and the data BWP based on a sensing activation timer pre-configured by the base station. Specifically, during the start or operation of the sensing activation timer, the terminal is in a sensing BWP active state, used to send or receive sensing signals. After the sensing activation timer expires, the terminal switches from the sensing BWP to the data BWP used for data transmission.

[0047] In this embodiment, if a terminal switches or a sensing BWP is activated, a sensing-inactivity timer is started. During the operation of this sensing-inactivity timer, the terminal sends or receives (listens to) sensing signals. After the timer expires, the terminal switches to a BWP used for data transmission. It can be understood that starting this timer or the timer being running indicates that the UE is in a state where the sensing BWP is active; if this timer expires (not starts), the UE switches from the sensing BWP to the data BWP.

[0048] For example, to facilitate a better understanding of the transmission of the two types of sensing signals involved in uplink and downlink transmission between the base station and the terminal, Figure 2 This is a schematic diagram of a terminal receiving a sensing signal according to an embodiment of the present invention. Figure 3 This is a schematic diagram illustrating a base station receiving a sensing signal according to an embodiment of the present invention. In this embodiment, Figure 2 and Figure 3 In this context, gNB refers to the base station, UE refers to the terminal, and sensing object refers to the object being sensed. For example, if an airport needs to sense whether a drone has intruded, then the sensing object corresponds to the drone. The base station can configure a dedicated Sensing BWP for the UE to transmit or receive sensing signals via RRC signaling (such as an RRC reconfiguration message). When this Sensing BWP is active, the UE will receive or transmit sensing signals on that Sensing BWP to sense the presence of a sensing object. Figure 2 As shown, the gNB sends a sensing signal, and the UE receives the signal reflected from the sensing object. For example... Figure 3 As shown, the UE sends a sensing signal, and the gNB receives the signal reflected by the sensing object.

[0049] In one embodiment, Figure 4This is a flowchart illustrating another BWP switching method provided in an embodiment of the present invention. Based on the above embodiments, this embodiment further refines the switching of the sensing BWP and the data BWP by the terminal through the switching instruction information.

[0050] like Figure 4 As shown, the BWP switching method in this embodiment may specifically include the following steps:

[0051] S410, the base station configures the terminal with a sensing BWP for sensing signal transmission or sensing signal reception, and a data BWP for data transmission.

[0052] S420. The base station sends handover indication information to the terminal; wherein the handover indication information includes at least: dynamic BWP handover, semi-persistent BWP handover, and periodic BWP handover.

[0053] S430. When the terminal does not support simultaneous transmission of sensing signals on the sensing BWP and transmission of data on the data BWP, the terminal instructs the switching of the sensing BWP and the data BWP through a switching instruction message.

[0054] In this embodiment, the terminal can send a message to the base station indicating whether it supports the ability to simultaneously transmit data and sensing signals between these two BWPs. This allows the base station to obtain this capability information. The terminal itself is aware of whether it supports the ability to simultaneously transmit data and sensing signals between these two BWPs. If the terminal does not support simultaneous data transmission and sensing signal transmission between these two BWPs, it may need to switch between the sensing BWP and the data BWP; that is, switch from the BWP used for data transmission to the BWP used for sensing, or vice versa.

[0055] In this embodiment, S430 may include: S4301-S4303.

[0056] S4301. In the case of dynamic BWP handover, the base station adds a new field to the physical layer DCI or MAC layer MAC CE to indicate the sensing BWP that the terminal will activate or deactivate, and transmits or listens to sensing signals during the activation of the sensing BWP, and transmits signal data during the data BWP.

[0057] In this embodiment, the base station adds a new field to the physical layer DCI or MAC layer MAC CE, that is, a new field carried in the DCI or MAC layer MAC CE. This new field can be in the form of an identifier or other field forms, used to indicate the sensing BWP that the terminal is about to activate or deactivate. In this embodiment, the sensing BWP that is about to be deactivated is the sensing BWP that was previously active and now needs to be switched from a sensing BWP to a data BWP.

[0058] In this embodiment, during dynamic BWP handover, the base station adds a new field to the downlink control information (DCI) at the physical layer or the MAC CE at the media access control (MAC) layer to indicate the sensing BWP that the terminal will activate or deactivate in order to perform the handover, and transmits or listens to sensing signals during the activation of the sensing BWP, and transmits signal data during the data BWP.

[0059] S4302. In the case of semi-persistent BWP handover, the base station configures a sensed BWP list for the terminal. Through the sensed BWP list and MAC CE, the base station instructs the terminal to activate or deactivate the sensed BWP, transmit or listen to sensed signals during the activation of the sensed BWP, and transmit signal data during the data BWP.

[0060] In MAC CE, a new field is introduced to indicate the ID of the Perception BWP to be activated or deactivated; the list of Perception BWPs contains the IDs and configuration information of multiple Perception BWPs.

[0061] In this embodiment, the sensing BWP list contains the IDs of multiple sensing BWPs and their corresponding configuration information. The DCI or MAC CE activates or deactivates one or more sensing BWPs belonging to this sensing BWP list, for example, by indicating the sensing BWP ID. This can be understood as the MAC CE introducing a new field to indicate the sensing BWP IDs to be activated or deactivated in this sensing BWP list.

[0062] In this embodiment, during semi-persistent BWP handover, the base station configures a list of sensing BWPs for the terminal. This list contains multiple sensing BWPs. A new field is introduced in the MAC CE to indicate the sensing BWP ID to be activated or deactivated in this list, so as to instruct the terminal to activate or deactivate the corresponding sensing BWP for handover. During the activation of the sensing BWP, sensing signals are transmitted or monitored, and during the data BWP, signal data is transmitted.

[0063] S4303. In the case of periodic BWP handover, the base station configures target parameters for the terminal through RRC signaling to instruct the terminal to activate or deactivate the sensing BWP, and transmits or listens to sensing signals during the duration of the sensing BWP, and transmits signal data during the data BWP.

[0064] The target parameters include at least: the period of the sensing BWP; the duration of the sensing BWP; and the pattern. The period of the sensing BWP can be understood as the time interval between the start of two consecutive sensing signal transmission opportunities (or sensing windows). The shorter the period, the better it is at tracking fast-moving objects without causing velocity ambiguity. The duration of the sensing BWP can be understood as the length of time used for sending and receiving sensing signals, i.e., the duration of sensing. In this embodiment, the period is a concept of frequency and interval, while the duration is a concept of length and span. In this embodiment, the pattern can be understood as an example; the pattern corresponds to a period of time during which part of the time is used for sensing BWP and another part for data BWP. It should be noted that the pattern is periodic, therefore its period is configured.

[0065] In this embodiment, during periodic BWP handover, the base station configures target parameters for the terminal via RRC signaling to instruct the terminal to activate or deactivate the sensing BWP for handover, and transmits or listens to sensing signals during the duration of the sensing BWP, and transmits signal data during the data BWP.

[0066] In one embodiment, the base station configures target parameters for the terminal via RRC signaling to instruct the terminal to activate or deactivate the sensing BWP, including:

[0067] The base station is configured with a period for sensing BWP, or a duration for sensing BWP, so that the terminal periodically activates or deactivates sensing BWP according to the period for sensing BWP, or the duration for sensing BWP.

[0068] The base station configures parameters of the Pattern so that the terminal periodically activates or deactivates the sensing BWP according to the parameters of the Pattern; wherein, the Pattern is periodic, that is, it is used for sensing BWP in a first preset time period and for data BWP in a second preset time period; the parameters of the Pattern include period and offset.

[0069] In this embodiment, the base station configures the period of the sensing BWP, or the duration of the sensing BWP, so that the terminal periodically activates or deactivates the sensing BWP according to the period of the sensing BWP, or the duration of the sensing BWP. This can be understood as defining or configuring (e.g., via RRC signaling) the period of the sensing BWP, and / or the duration of the sensing BWP (e.g., indicated by a newly configured timer, which we call the sensing-InactivityTimer). That is, the sensing BWP will be periodically activated according to the configured period, and will transmit or listen for sensing signals during the duration of the sensing BWP (e.g., during the operation of the sensing-InactivityTimer).

[0070] In this embodiment, the base station configures parameters of the pattern so that the terminal periodically activates or deactivates the sensing BWP according to the parameters of the pattern. The base station will configure the terminal with a pattern for sensing BWP and data BWP (example). The base station will configure the terminal with the period and offset of the pattern (e.g., via RRC signaling), or the start offset and duration of sensing BWP and / or data BWP within a pattern.

[0071] It should be noted that the network can be configured with one or more patterns, and may support combinations of different patterns. Specifically, the network can decide how to configure it based on its own implementation. This embodiment will not provide a detailed explanation here.

[0072] In this embodiment, the Pattern is periodic, meaning it is used for sensing BWP during a first preset time period and for data BWP during a second preset time period. The parameters of the Pattern include period and offset. In this embodiment, one of the periods can be selected. Relative to the starting point of this period, there may be an offset between sensing BWP and data BWP, which is used to determine the start time of sensing BWP and data BWP.

[0073] In this embodiment, the technical solution described above, in the case of dynamic BWP handover, involves the base station adding a new field to the physical layer's DCI or the MAC layer's MAC CE to indicate the sensing BWP that the terminal will activate or deactivate for handover. During sensing BWP activation, sensing signals are transmitted or monitored, and during data BWP activation, signal data is transmitted. In the case of semi-persistent BWP handover, the base station configures a sensing BWP list for the terminal, using the sensing BWP list and MAC... The CE (Center for Detection) system instructs the terminal to activate or deactivate the sensing BWP (Base Station Window) for handover. During the activation of the sensing BWP, it transmits or listens for sensing signals, and during the data BWP, it transmits signal data. In the case of periodic BWP handover, the base station configures target parameters for the terminal via RRC (Regulatory Control Code) signaling to instruct the terminal to activate or deactivate the sensing BWP for handover. During the duration of the sensing BWP, it transmits or listens for sensing signals, and during the data BWP, it transmits signal data. This further enables rapid handover between data transmission and sensing operations, reducing handover latency and thus more efficiently meeting different service requirements. Simultaneously, it achieves low coupling between data transmission and sensing operations, allowing both functions to be implemented within the same system, providing strong support for the development and application of integrated sensing and communication technologies.

[0074] In one embodiment, Figure 5 This is a schematic diagram of a base station or terminal provided for an embodiment of the present invention. Electronic device 10 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic device 10 can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0075] like Figure 5As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0076] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0077] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the BWP switching method.

[0078] In some embodiments, the BWP switching method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the BWP switching method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the BWP switching method by any other suitable means (e.g., by means of firmware).

[0079] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0080] Computer programs used to implement the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable BWP switching device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The computer programs can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0081] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0082] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0083] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0084] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0085] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0086] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for switching a BWP, characterized in that, The switching method comprises: The base station configures a terminal with a sensing bandwidth part BWP for sensing signal transmission or sensing signal reception, and a data BWP for data transmission; The base station sends switching indication information to the terminal; wherein the switching indication information at least comprises dynamic BWP switching, semi-persistent BWP switching and periodic BWP switching; In the case that the terminal does not support simultaneous sensing signal transmission on the sensing BWP and data transmission on the data BWP, the terminal indicates the switching of the sensing BWP and the data BWP through the switching indication information.

2. The method of claim 1, wherein, The method further comprises: The terminal performs switching between the sensing BWP and the data BWP switching based on the sensing activation timer pre-configured by the base station; wherein the sensing activation timer is configured by the base station through RRC signaling.

3. The method of claim 1, wherein, In the case that the sensing BWP meets a first condition, the terminal performs a first operation; wherein the first condition comprises one sensing BWP being activated, or the activated sensing BWP being a sensing BWP for downlink transmission; the first operation comprises at least one of the following: starting the sensing activation timer; using the currently activated sensing BWP to listen to or receive downlink sensing signals; prohibiting listening to a physical downlink control channel PDCCH on the activated sensing BWP; prohibiting listening to a downlink shared channel DL-SCH on the activated sensing BWP.

4. The method of claim 1, wherein, In the case that the sensing BWP meets a second condition, the terminal performs a second operation; wherein the second condition comprises one sensing BWP being activated, or the sensing BWP being a sensing BWP for uplink transmission; the second operation comprises at least one of the following: starting the sensing activation timer; using the currently activated sensing BWP to transmit uplink sensing signals; prohibiting transmitting uplink signals on the activated sensing BWP.

5. The method according to any of claims 2, 3 or 4, characterized by, During the starting or running of the sensing activation timer, the terminal is in a sensing BWP activated state for transmitting or receiving sensing signals; After the sensing activation timer expires, the terminal switches from the sensing BWP to the data BWP for data transmission.

6. The method of claim 1, wherein, The terminal indicates the switching of the sensing BWP and the data BWP through the switching indication information, which comprises: In the case of dynamic BWP switching, the base station adds a new field in a physical layer downlink control information DCI or a medium access control MAC layer control element MAC CE to indicate the sensing BWP to be activated or the sensing BWP to be deactivated by the terminal, and to transmit or listen to sensing signals during the activation of the sensing BWP, and to transmit signal data during the data BWP; In the case of the semi-persistent BWP switching, the base station configures a sensing BWP list for the terminal, and indicates the terminal to activate or deactivate a sensing BWP through the sensing BWP list and a MAC CE, and transmits or listens to a sensing signal during the activation of the sensing BWP, and transmits signal data during the data BWP; wherein a new field is introduced in the MAC CE to indicate the sensing BWP ID to be activated or deactivated; the sensing BWP list contains the ID and configuration information of multiple sensing BWPs; In the case of the periodic BWP switching, the base station configures target parameters for the terminal through RRC signaling to indicate the terminal to activate or deactivate a sensing BWP, and transmit or listen to a sensing signal during the duration of the sensing BWP, and transmit signal data during the data BWP; wherein the target parameters at least include: the period of the sensing BWP; the duration of the sensing BWP; and a pattern.

7. The method of claim 6, wherein, The base station configures target parameters for the terminal through RRC signaling to indicate the terminal to activate or deactivate a sensing BWP, including: The base station configures the period of the sensing BWP or the duration of the sensing BWP to enable the terminal to periodically activate or deactivate the sensing BWP according to the period of the sensing BWP or the duration of the sensing BWP. The base station configures parameters of the pattern to enable the terminal to periodically activate or deactivate the sensing BWP according to the parameters of the pattern.

8. The method according to any of claims 6 or 7, characterized in that, The pattern has periodicity, which is expressed as being used for a sensing BWP in a first preset time period and being used for a data BWP in a second preset time period; and the parameters of the pattern include a period and an offset.

9. The method of claim 1, wherein, The configuration number of the sensing BWP and the data BWP is one or more; in the case of multiple configuration numbers and selection of a target sensing BWP and a target data BWP from multiple sensing BWPs and data BWPs for BWP switching, the base station configures a specified switching data BWP or sensing BWP through an RRC message.

10. A base station, characterized by, The base station includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the BWP switching method of any one of claims 1-9.

11. A terminal, characterized by comprising: The terminal includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the BWP switching method of any one of claims 1-9.

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