Cell switching method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a cell switching method and device, electronic equipment and a storage medium. The method comprises the following steps: receiving a network layer L3 measurement control message; performing L3 measurement on the serving cell and the neighbor cell according to the L3 measurement control message, and generating and reporting an L3 measurement report; receiving an L1 measurement control message sent by the MAC CE; generating and reporting an L1 measurement report according to the L1 measurement control message; receiving a cell switching instruction; and establishing connection with the target cell according to the cell switching instruction. According to the method, more flexible and faster MAC CE signaling is adopted to complete measurement control required by cell switching, so that the cell switching process is faster, and the frequent cell switching requirement under the 5G network is met.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a cell switching method, device, electronic device and storage medium. Background Art

[0002] With the development of mobile communication technology, the carrier frequency has gradually increased. The larger the center frequency of the carrier, the weaker its penetration and diffraction capabilities, which in turn leads to a smaller coverage area of ​​the cell.

[0003] The main feature of mobile communication is that the terminal device is in an unfixed position and can move at any time. Considering the small coverage of 5G cells, it is easier for the terminal to leave the current service cell. The frequent cell switching under the 5G network has an impact on user experience. In order to ensure communication quality and user experience, the terminal needs to find a more suitable service cell to complete the cell switching. How to complete the switching process more quickly to reduce the impact of interruptions on user experience is an important issue.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] Embodiments of the present disclosure provide a cell switching method, device, electronic device, and storage medium.

[0006] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0007] According to one aspect of the present disclosure, a cell switching method is provided, the method comprising: receiving a network layer (L3) measurement control message; performing L3 measurement on a serving cell and a neighboring cell according to the L3 measurement control message, generating and reporting an L3 measurement report; receiving a physical layer (L1) measurement control message sent via a media access control layer control message (MAC CE); the L1 measurement control message is generated according to the L3 measurement report; generating and reporting an L1 measurement report according to the L1 measurement control message; receiving a cell switching instruction; the cell switching instruction comprises at least target cell information and target beam information; and establishing a connection with the target cell on the target beam according to the cell switching instruction.

[0008] In an exemplary embodiment, performing L3 measurement on the serving cell and the neighboring cell according to the L3 measurement control message, generating and reporting the L3 measurement report, further includes: performing L3 measurement on the serving cell and at least one beam in the neighboring cell of the low frequency band (FR1) according to the L3 measurement control message, and generating the L3 measurement report; saving the beam measurement result of the at least one beam during the L3 measurement process; generating and reporting the L1 measurement report according to the L1 measurement control message includes: the L1 measurement control message instructs to perform L1 measurement on the cell to be measured in FR1; in response to the storage time of the beam measurement result saved during the L3 measurement of the cell to be measured being less than or equal to a preset time threshold, generating the L1 measurement report according to the measurement result, and reporting it; in response to the storage time of the beam measurement result saved during the L3 measurement of the cell to be measured being greater than the preset time threshold, performing L1 measurement on at least one beam in the cell to be measured in FR1; generating the L1 measurement report according to the beam measurement result of at least one beam greater than the preset L1 measurement threshold, and reporting it.

[0009] In an exemplary embodiment, the generating and reporting of the L1 measurement report according to the L1 measurement control message includes: the L1 measurement control message instructs to perform L1 measurement on the cell to be measured in the high frequency band (FR2); performing L1 measurement on at least one fine beam in the cell to be measured in the FR2; generating the L1 measurement report according to the beam measurement result of at least one fine beam greater than a preset L1 measurement threshold, and reporting it.

[0010] In an exemplary embodiment, the L3 measurement control message includes a network configuration; the network configuration includes at least: a measurement configuration and a reporting configuration; the measurement configuration includes at least: a measurement timing and a measurement object; the measurement timing is a periodic measurement, a semi-periodic measurement or an event-triggered measurement; the measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS); the reporting configuration includes at least: a reporting timing and a reporting object; the reporting timing is a periodic reporting, a semi-periodic reporting or an event-triggered reporting; the reporting object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0011] In an exemplary embodiment, the method further comprises receiving adjustments to the network configuration via radio resource control (RRC) signaling.

[0012] In an exemplary embodiment, performing L3 measurement on the serving cell and the neighboring cell according to the L3 measurement control message, generating and reporting the L3 measurement report, includes: performing L3 measurement on at least one beam in the serving cell and the neighboring cell according to the L3 measurement control message; filtering the L3 measurement results greater than a preset L3 measurement threshold; and reporting the filtered L3 measurement results as the L3 measurement report.

[0013] According to another aspect of the present disclosure, a cell switching method is provided, the method comprising: sending an L3 measurement control message to a terminal; receiving an L3 measurement report generated and reported by the terminal according to the L3 measurement control message; sending an L1 measurement control message to the terminal through a MAC CE; the L1 measurement control message is generated according to the L3 measurement report; receiving an L1 measurement report generated and reported by the terminal according to the L1 measurement control message; sending a cell switching instruction to the terminal; the cell switching instruction is generated according to the L1 measurement report; the cell switching instruction comprises at least target cell information and target beam information, and is used to instruct the terminal to establish a connection with the target cell on the target beam.

[0014] In an exemplary embodiment, the L3 measurement control message includes a network configuration; the network configuration includes at least: a measurement configuration and a reporting configuration; the measurement configuration includes at least: a measurement timing and a measurement object; the measurement timing is a periodic measurement, a semi-periodic measurement or an event-triggered measurement; the measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS); the reporting configuration includes at least: a reporting timing and a reporting object; the reporting timing is a periodic reporting, a semi-periodic reporting or an event-triggered reporting; the reporting object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0015] In an exemplary embodiment, the method further comprises sending adjustments to the network configuration via radio resource control (RRC) signaling.

[0016] In an exemplary embodiment, the L1 measurement control message is generated according to the L3 measurement report, including: in response to the L3 measurement result corresponding to the serving cell in the L3 measurement report being less than a preset switching threshold or the L3 measurement result corresponding to the neighboring cell, generating the L1 measurement control message; the L1 measurement control message includes at least information about the cell to be measured and information about the frequency band to be measured.

[0017] According to another aspect of the present disclosure, a cell switching device is provided, including: an L3 measurement module, configured to receive an L3 measurement control message; according to the L3 measurement control message, performing L3 measurement on a serving cell and a neighboring cell, generating and reporting an L3 measurement report; an L1 measurement control message receiving module, configured to receive an L1 measurement control message sent via a MAC CE; the L1 measurement control message is generated according to the L3 measurement report; the L1 measurement module is configured to generate and report an L1 measurement report according to the L1 measurement control message; a cell switching module is configured to receive a cell switching instruction; the cell switching instruction includes at least target cell information and target beam information; according to the cell switching instruction, establishing a connection with the target cell on the target beam.

[0018] According to another aspect of the present disclosure, a cell switching device is provided, including: an L3 measurement control message sending module, configured to send an L3 measurement control message to a terminal; an L3 measurement report receiving module, configured to receive an L3 measurement report generated and reported by the terminal according to the L3 measurement control message; an L1 measurement control message sending module, configured to send an L1 measurement control message to the terminal through a MAC CE; the L1 measurement control message is generated according to the L3 measurement report; the L1 measurement report receiving module is configured to receive an L1 measurement report generated and reported by the terminal according to the L1 measurement control message; a cell switching instruction sending module, configured to send a cell switching instruction to the terminal; the cell switching instruction is generated according to the L1 measurement report; the cell switching instruction includes at least target cell information and target beam information, and is used to instruct the terminal to establish a connection with the target cell on the target beam.

[0019] According to another aspect of the present disclosure, an electronic device is provided, comprising: one or more processors; and a storage device configured to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the cell switching method as described in the above embodiments.

[0020] According to another aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the cell switching method as described in the above embodiment is implemented.

[0021] The cell switching method provided by the embodiment of the present disclosure determines the terminal that needs to perform cell switching and the target switching cell by performing L3 measurements on the serving cell and the neighboring cell. Then, an L1 measurement control message is sent to the terminal through MAC CE signaling to control the terminal to perform L1 measurement on the target switching cell. According to the L1 measurement report, the target cell and target beam are determined, and the terminal is controlled to complete the cell switching. This method uses more flexible and fast MAC CE signaling to complete the measurement control required for switching cells, making the cell switching process faster and meeting the frequent cell switching requirements under the 5G network.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0024] Figure 1 A schematic diagram of a network architecture of a communication system applicable to an embodiment of the present disclosure is shown;

[0025] Figure 2 A flow chart of a cell switching method according to an embodiment of the present disclosure is shown;

[0026] Figure 3 A flow chart of a method for generating an L1 measurement report according to an embodiment of the present disclosure is shown;

[0027] Figure 4 A flowchart of another L1 measurement report generation method according to an embodiment of the present disclosure is shown;

[0028] Figure 5 A flow chart of a method for generating an L3 measurement report according to an embodiment of the present disclosure is shown;

[0029] Figure 6 A flow chart showing another cell switching method according to an embodiment of the present disclosure is shown;

[0030] Figure 7 A schematic structural diagram of a cell switching device according to an embodiment of the present disclosure is shown;

[0031] Figure 8 A schematic structural diagram of another cell switching device according to an embodiment of the present disclosure is shown;

[0032] Fig. 9 A schematic diagram of the structure of an electronic device suitable for implementing an exemplary embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0033] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0034] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0035] It should be noted that the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present disclosure are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects, and the descriptions of "first" and "second" do not limit the objects to be different.

[0036] In order to solve the above problems, the embodiment of the present disclosure proposes a cell switching method, which can be applied to various communication systems. For example, GSM (Global system for Mobile Communications, global mobile communications) system, CDMA (Code Division Multiple Access, code division multiple access) system, WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) system, LTE (Long Termevolution, long-term evolution) system, LTE frequency division duplex system, LTE time division duplex system, UMTS (Universal Mobiletelecommunication System, universal mobile telecommunications system), WIMAX (Worldwide Interoperability for Microwave Access, global interconnection microwave access) communication system, 5G (5th generation, fifth generation) system or communication systems applied to the future or other similar communication systems.

[0037] Figure 1 FIG. 1 is a schematic diagram showing a network architecture of a communication system applicable to an embodiment of the present disclosure. Figure 1 As shown, the network architecture includes UE, RAN (Radio Access Network, wireless access network) equipment, AMF (Access and Mobility Management Function, access and mobility management function network element) network element, SMF (Session Management function, session management function) network element, UPF (User Plane Function, user plane function) network element, PCF (Policy Control Function, policy control function) network element, NSSF (Network Slice Selection Function, network slice selection function) network element, NRF (Network Repository Function, network warehouse function) network element, NWDAF (Network Data Analytics Function, network data analysis) network element, UDM (Unified Data Management, unified data management) network element, UDR (Unified Data Repository, unified data storage) network element, AUSF (Authentication Server Function, authentication server function) network element, NEF (Network Exposure Function, network open function) network element, AF (Application Function, application function) network element, and DN (Data Network, data network) connected to the operator network.

[0038] UE can be various electronic devices, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). UE can communicate with the core network via non-RAN devices and exchange voice and / or data with RAN devices. UE can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a mobile Internet device, a wearable device, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the clients of the applications installed in different UEs are the same, or the clients of the same type of applications based on different operating systems. Based on different terminal platforms, the specific form of the client of the application can also be different. For example, the application client can be a mobile phone client, a computer client, etc.

[0039] RAN equipment is a device in the network used to access UE to the wireless network, and may include equipment in the access network that communicates with wireless terminals through one or more sectors on the air interface. UE can access the AMF network element through RAN equipment. Specifically, when the UE accesses the AMF network element through the RAN equipment, the UE can access the AMF network element through network-side equipment such as 5G and later versions of base stations (for example: 5G NR NB), or base stations in other communication systems (for example: eNB base stations).

[0040] The AMF network element is mainly used for UE mobility management, access authentication / authorization, and is also responsible for transmitting user policies between the UE and the PCF network element.

[0041] SMF network elements are mainly used for session management, UE Internet Protocol address allocation and management, selection of endpoints for manageable user plane functions, policy control, or charging function interfaces, and downlink data notification.

[0042] The UPF network element can be used for packet routing and forwarding, or QoS processing of user plane data, etc. User data can be accessed to the DN through this network element.

[0043] The PCF network element is a unified policy framework used to guide network behavior and provide policy rule information for control plane functional network elements (such as AMF network elements and SMF network elements).

[0044] The NSSF network element is mainly used to select appropriate network slices for UE services.

[0045] NRF network elements are mainly used to provide registration and discovery functions for network elements or services provided by network elements.

[0046] NWDAF network elements can collect data from various network functions and perform analysis and prediction.

[0047] The UDM network element is mainly used to manage the UE's contract information. For example, during the authentication process, it performs authentication vector calculation, key deduction, user identity decryption, etc. In the resynchronization process, it verifies AUTS according to the corresponding algorithm and initiates a re-authentication process.

[0048] The UDR network element is mainly used to store structured data information, including contract information, policy information, and network data or business data defined in a standard format.

[0049] The AUSF network element is mainly used to perform security authentication on terminal devices.

[0050] NEF network element is located between 5G core network and external third-party application function body, and may also have some internal application functions. It is responsible for managing the network data open to the outside world. All external applications that want to access the internal data of 5G core network must go through NEF network element. NEF network element provides corresponding security guarantee to ensure the security of external application to the network, and provides functions such as external application QoS customization capability opening, mobility status event subscription, and application function request distribution.

[0051] AF network elements are mainly used to convey the requirements of the application side to the network side, such as QoS requirements and user status event subscriptions. AF network elements can be third-party functional entities or application services deployed by operators. For application functional entities of third-party applications, they can also be authorized through NEF network elements when interacting with the core network. For example, a third-party application function directly sends a request to the NEF network element, and the NEF network element determines whether the AF network element is allowed to send the request. If the verification is successful, the request will be forwarded to the corresponding PCF network element or UDM network element.

[0052] It should be understood that the above-mentioned network elements or functions can be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).

[0053] Figure 2 A flow chart of a cell switching method according to an embodiment of the present disclosure is shown. Figure 2 The cell switching method provided in the embodiment may be executed by a terminal (UE). Figure 2 As shown, the cell switching method may include the following steps.

[0054] In step S210, a network layer (L3) measurement control message is received; according to the L3 measurement control message, L3 measurements are performed on the serving cell and the neighboring cell, and an L3 measurement report is generated and reported.

[0055] In the disclosed embodiment, the wireless interface in the 5G NR network is divided into three protocol layers: physical layer (L1), data link layer (L2), and network layer (L3). L1 is the lowest layer in the network model, which provides the required physical link specifications for transmitting data and ensures that the original data can be transmitted on various physical media. L2 is the second layer in the network model, which is between the physical layer and the network layer, and provides services to the network layer based on the services provided by the physical layer. L3 is the third layer in the network model, which is between the transport layer and the data link layer. Based on the data frame transmission function between two adjacent endpoints provided by the data link layer, it further manages data communications in the network, and tries to transmit data from the source to the destination through several intermediate nodes, thereby providing the most basic end-to-end data transmission service to the transport layer.

[0056] In the disclosed embodiment, the serving cell is the cell to which the terminal currently accesses the service. The neighboring cell is a cell adjacent to the serving cell, that is, a cell to which the terminal potentially switches. The carrier frequencies of the serving cell and the neighboring cell may be located in the FR1 or FR2 frequency range. In 5G NR, two frequency band ranges are defined, FR1 and FR2, FR1 represents a low frequency band, and FR2 represents a high frequency band. Specifically, the frequency range corresponding to FR1 is 450MHz to 6000MHz, and the frequency range corresponding to FR2 is 24250MHz to 52600MHz. Among them, the FR2 frequency band further includes multiple coarse beams and fine beams. The cell switching method provided in the disclosed embodiment supports both co-frequency switching between cells and hetero-frequency switching between cells. The so-called co-frequency switching means that the serving cell and the neighboring cell have the same carrier frequency and subcarrier spacing. The so-called hetero-frequency switching means that the serving cell and the neighboring cell have different carrier frequencies and subcarrier spacings.

[0057] In an exemplary embodiment, the carrier frequencies of the serving cell and the neighboring cell are both 2.1 GHz, and the subcarrier spacing is both 15 KHz. The serving cell and the neighboring cell perform the same frequency handover.

[0058] In an exemplary embodiment, the carrier frequency and subcarrier spacing of the serving cell are 2.1 GHz and 15 KHz, and the carrier frequency and subcarrier spacing of the neighboring cell are 3.5 GHz and 30 KHz. The serving cell and the neighboring cell are switched at different frequencies.

[0059] In the disclosed embodiment, the base station side sends an L3 measurement control message to the terminal through Radio Resource Control (RRC) signaling. The L3 measurement control message includes measurement cell information. The terminal performs L3 measurement on the target serving cell and neighboring cell according to the measurement cell information. The L3 measurement includes, but is not limited to, performing L3 measurement on all beams in the measured cell FR1 and performing L3 measurement on all coarse beams and fine beams in the measured cell FR2. Based on the above measurement results, an L3 measurement report is generated and reported.

[0060] In an exemplary embodiment, the L3 measurement includes, but is not limited to, performing L3 measurement on all beams in the measured cell FR1 and performing L3 measurement on all coarse beams and thin beams in the measured cell FR2. According to actual needs, when measuring the measured cell FR2, L3 measurement may also be performed only on the coarse beam.

[0061] In the disclosed embodiment, the L3 measurement report is used to record signal quality parameters. The object of measurement may be a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS), and the measured signal quality parameter may be at least one of reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), and signal to interference plus noise ratio (SINR).

[0062] In the embodiment of the present disclosure, the L3 measurement control message also includes network configuration, including at least: measurement configuration and reporting configuration. The network configuration can be sent or adjusted through RRC signaling.

[0063] The measurement configuration includes at least: a measurement opportunity and a measurement object. The measurement opportunity is a periodic measurement, a semi-periodic measurement, or an event-triggered measurement. The measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0064] The reporting configuration includes at least: a reporting opportunity and a reporting object. The reporting opportunity is periodic reporting, semi-periodic reporting or event-triggered reporting. The reporting object is at least one of the reference signal received power (RSRP), reference signal received quality (RSRQ), and signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0065] In an exemplary embodiment, the network configuration controls the terminal to periodically measure the SSB-RSRP of the serving cell and the neighboring cell at intervals of 20 ms when performing L3 measurement, and to periodically report the SSB-RSRP of the serving cell and the neighboring cell at intervals of 20 ms based on the measurement results.

[0066] In step S220, a physical layer (L1) measurement control message sent via a medium access control layer control message (MAC CE) is received; the L1 measurement control message is generated according to the L3 measurement report.

[0067] In the disclosed embodiment, the base station determines whether the terminal needs to perform a cell handover based on the aforementioned L3 measurement report. If the terminal needs to perform a cell handover, an L1 measurement control message is generated and sent to the terminal through MAC CE signaling to control the terminal to perform L1 measurement. In the disclosed embodiment, the L1 measurement control message is sent to the terminal through MAC CE signaling. Since MAC CE signaling is a bottom layer signaling and has flexible configuration, it does not need to be processed by a high layer. Therefore, it has the characteristics of faster sending speed, which meets the response requirements of frequent cell switching under the 5G network.

[0068] The base station triggers the generation of an L1 measurement control message according to the measurement result in the L3 measurement report meeting the preset condition. The preset condition may be that the L3 measurement result corresponding to the serving cell is less than the preset switching threshold, or that the L3 measurement result corresponding to the serving cell is less than the L3 measurement result corresponding to the neighboring cell. The L1 measurement control message includes at least the cell information to be measured and the frequency band information to be measured. The cell information to be measured includes the cell to be measured for L1 measurement. The frequency band information to be measured includes the frequency band for L1 measurement of the cell to be measured, such as FR1 or FR2.

[0069] In an exemplary embodiment, the L3 measurement result of neighboring cell 1 is better than the L3 measurement result of the current serving cell. The base station sends an L1 measurement control message to the terminal through MAC CE signaling, instructing the terminal to perform L1 measurement on FR1 of neighboring cell 1.

[0070] In step S230, an L1 measurement report is generated and reported according to the L1 measurement control message.

[0071] In the disclosed embodiment, the L1 measurement control message provides information about the cell to be measured and information about the frequency band to be measured. The terminal performs L1 measurement on the frequency band to be measured of the cell to be measured, generates an L1 measurement report based on the measurement result, and reports it to the base station.

[0072] The L1 measurement report is similar to the aforementioned L3 measurement report, except that the report content is for the signal quality parameters related to each beam in the cell to be measured. The specific content will not be repeated here.

[0073] In step S240, a cell switching instruction is received; the cell switching instruction includes at least target cell information and target beam information; and according to the cell switching instruction, a connection is established with the target cell on the target beam.

[0074] In the disclosed embodiment, the base station determines whether the terminal performs cell switching, the target cell for switching, and the target beam for switching based on the received L1 measurement report. Based on the above information, a cell switching instruction is generated, and the instruction includes at least target cell information and target beam information. The terminal establishes a connection with the target cell on the specified target beam according to the cell switching instruction to complete the cell switching operation.

[0075] This cell switching method determines the terminal that needs to perform cell switching and the target switching cell by performing L3 measurements on the serving cell and the neighboring cell. Then, an L1 measurement control message is sent to the terminal through MAC CE signaling to control the terminal to perform L1 measurement on the target switching cell. According to the L1 measurement report, the target cell and target beam are determined, and the terminal is controlled to complete the cell switching. This method uses more flexible and fast MAC CE signaling to complete the measurement control required for switching cells, making the cell switching process faster and meeting the frequent cell switching requirements under the 5G network.

[0076] Figure 3 A flowchart of a method for generating an L1 measurement report according to an embodiment of the present disclosure is shown. The method for generating an L1 measurement report of the FR1 frequency band of the cell to be measured according to the embodiment of the present disclosure. In the aforementioned step S210, performing L3 measurement on the serving cell and the neighboring cell according to the L3 measurement control message, generating and reporting the L3 measurement report, further includes:

[0077] According to the L3 measurement control message, L3 measurement is performed on at least one beam in the serving cell and a neighboring cell in the low frequency band (FR1), and the L3 measurement report is generated. A beam measurement result of the at least one beam during the L3 measurement process is saved.

[0078] Since L3 measurement for the FR1 frequency band involves many beam measurement results related to L1 measurement, in order to save network resources and speed up cell switching, the embodiment of the present disclosure saves the beam measurement result of the at least one beam in the L3 measurement report.

[0079] Based on the above steps, Figure 3 As shown, in step S230, the following steps may also be included.

[0080] In step S310, the L1 measurement control message instructs to perform L1 measurement on the cell to be measured in FR1.

[0081] The disclosed embodiment is a processing flow for performing L1 measurement on a cell to be measured in the FR1 frequency band.

[0082] In step S320, in response to the fact that the storage time of the beam measurement result stored in the L3 measurement process of the cell to be measured is less than or equal to a preset time threshold, the L1 measurement report is generated according to the measurement result and reported.

[0083] In the disclosed embodiment, when the storage time of the beam measurement result stored in the L3 measurement report of the cell to be measured is less than or equal to the preset time threshold with the time interval of the current L1 measurement of the cell to be measured, it is considered that the beam measurement result stored by the L3 measurement is still valid. In order to save network resources and speed up the cell switching speed, the stored beam measurement result is directly reused. The L1 measurement report is generated according to the measurement result and reported.

[0084] In an exemplary embodiment, the center frequency of the cell to be measured is 2.1 GHz, and the preset time threshold is 5 seconds. If the time interval between the current L1 measurement of the cell to be measured and the last L3 measurement does not exceed 5 seconds, the beam measurement result saved by the L3 measurement is considered to be still valid. The terminal reports the RSRP measurement results of the three best beams better than -85 dB among the saved beam measurement results as L1 measurement reports to the base station.

[0085] In step S330, in response to the fact that the storage time of the beam measurement results saved during the L3 measurement process of the cell to be measured is greater than the preset time threshold, L1 measurement is performed on at least one beam in the cell to be measured of FR1; the L1 measurement report is generated based on the beam measurement result of at least one beam greater than the preset L1 measurement threshold, and reported.

[0086] In the disclosed embodiment, when the time interval between the storage time of the beam measurement result stored in the L3 measurement report of the cell to be measured and the current L1 measurement of the cell to be measured is greater than a preset time threshold, it is considered that the beam measurement result stored in the L3 measurement has expired, and it is necessary to re-perform the L1 measurement. Perform L1 measurement on at least one beam in the cell to be measured of the FR1; generate the L1 measurement report according to the beam measurement result of at least one beam greater than the preset L1 measurement threshold, and report it.

[0087] In an exemplary embodiment, the center frequency of the cell to be measured is 2.1 GHz, and the preset time threshold is 5 seconds. If the time interval between the current L1 measurement of the cell to be measured and the last L3 measurement exceeds 5 seconds, the beam measurement result saved by the L3 measurement is considered to be invalid. The terminal measures the RSRP value of the SSB on each beam in the cell to be measured, and reports the RSRP measurement results of the three best beams better than -85dB as the L1 measurement report to the base station.

[0088] This cell switching method saves the beam measurement results in L3 measurement in advance, makes full use of L3 measurement results, saves network resources, and speeds up the cell switching response speed, further meeting the needs of 5G networks for fast cell switching.

[0089] Figure 4 FIG. 2 is a flow chart of another method for generating an L1 measurement report according to an embodiment of the present disclosure. The method for generating an L1 measurement report of the FR2 frequency band of a cell to be measured according to an embodiment of the present disclosure. Figure 4 As shown, in step S230, the following steps may also be included.

[0090] In step S410, the L1 measurement control message instructs to perform L1 measurement on the cell to be measured in the high frequency band (FR2).

[0091] The disclosed embodiment is a processing flow for performing L1 measurement on a cell to be measured in the FR2 frequency band.

[0092] In step S420, L1 measurement is performed on at least one fine beam in the measured cell of FR2; the L1 measurement report is generated according to the beam measurement result of at least one fine beam greater than a preset L1 measurement threshold, and is reported.

[0093] In the disclosed embodiment, L1 measurement is performed on at least one fine beam in the FR2 cell to be measured; the L1 measurement report is generated according to the beam measurement result of at least one beam greater than a preset L1 measurement threshold, and is reported. When L1 measurement is performed on FR2 of the cell to be measured, only the fine beam is measured, and the coarse beam is not measured. This further saves network resources during the measurement process.

[0094] In an exemplary embodiment, the center frequency of the cell to be measured is 28 GHz. The terminal measures the RSRP value of the SSB on each thin beam in the cell to be measured, and reports the RSRP measurement results of the three best thin beams better than -85 dB as L1 measurement reports to the base station.

[0095] Figure 5 FIG. 1 is a flow chart of a method for generating an L3 measurement report according to an embodiment of the present disclosure. Figure 5 As shown, in step S210, the following steps may also be included.

[0096] In step S510, according to the L3 measurement control message, L3 measurement is performed on at least one beam in the serving cell and the neighboring cell.

[0097] In the disclosed embodiment, according to the L3 measurement control message, L3 measurement is performed on each beam in the serving cell and the neighboring cell. For the cell to be measured in FR1, L3 measurement is performed on all beams in the cell; for the cell to be measured in FR2, L3 measurement is performed on all coarse beams in the cell. The measurement timing and measurement object of the L3 measurement are measured according to the aforementioned network configuration.

[0098] In step S520, the L3 measurement results greater than a preset L3 measurement threshold are filtered.

[0099] In the embodiment of the present disclosure, an L3 measurement threshold is preset according to actual business needs, and a plurality of L3 measurement results greater than the preset L3 measurement threshold are screened out. If there are many L3 measurement results greater than the preset L3 measurement threshold, a preset number of L3 measurement results with the best measurement results may be further screened out. The screened L3 measurement results are filtered.

[0100] In step S530, the filtered L3 measurement result is reported as the L3 measurement report.

[0101] In the disclosed embodiment, the L3 measurement result after filtering is reported as an L3 measurement report. In an exemplary embodiment, the L3 measurement result after filtering may be further processed to obtain the L3 measurement report. For example, the L3 measurement result after filtering is averaged and the averaged value is used as the L3 measurement report.

[0102] In an exemplary embodiment, for a cell to be tested in FR1, the RSRP value of the SSB on each beam in the cell is measured. The RSRP values ​​of the SSB on the three best beams better than -85dB are selected. The three RSRP values ​​are filtered and averaged, and the obtained result is reported as the L3 measurement report of the cell.

[0103] Figure 6 A flow chart of another cell switching method according to an embodiment of the present disclosure is shown. Figure 6 The cell switching method provided in the embodiment may be executed by a base station. Figure 6 As shown, the cell switching method may include the following steps.

[0104] In step S610, an L3 measurement control message is sent to the terminal.

[0105] In the disclosed embodiment, the base station sends an L3 measurement control message to the terminal through RRC signaling. The L3 measurement control message includes measurement cell information. The terminal performs L3 measurement on the target serving cell and neighboring cell according to the measurement cell information.

[0106] In the disclosed embodiment, the L3 measurement report is used to record signal quality parameters. The object of measurement may be a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS), and the measured signal quality parameter may be at least one of reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), and signal to interference plus noise ratio (SINR).

[0107] In the embodiment of the present disclosure, the L3 measurement control message also includes network configuration, including at least: measurement configuration and reporting configuration. The network configuration can be sent or adjusted through RRC signaling.

[0108] The measurement configuration includes at least: a measurement opportunity and a measurement object. The measurement opportunity is a periodic measurement, a semi-periodic measurement, or an event-triggered measurement. The measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0109] The reporting configuration includes at least: a reporting opportunity and a reporting object. The reporting opportunity is periodic reporting, semi-periodic reporting or event-triggered reporting. The reporting object is at least one of the reference signal received power (RSRP), reference signal received quality (RSRQ), and signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0110] In an exemplary embodiment, the network configuration controls the terminal to periodically measure the SSB-RSRP of the serving cell and the neighboring cell at intervals of 20 ms when performing L3 measurement, and to periodically report the SSB-RSRP of the serving cell and the neighboring cell at intervals of 20 ms based on the measurement results.

[0111] In step S620, an L3 measurement report generated and reported by the terminal according to the L3 measurement control message is received.

[0112] In the disclosed embodiment, the receiving terminal measures and uploads an L3 measurement report according to the above network configuration.

[0113] In step S630, an L1 measurement control message is sent to the terminal through MAC CE; the L1 measurement control message is generated according to the L3 measurement report.

[0114] In the disclosed embodiment, the base station determines whether the terminal needs to perform a cell handover based on the aforementioned L3 measurement report. If the terminal needs to perform a cell handover, an L1 measurement control message is generated and sent to the terminal through MAC CE signaling to control the terminal to perform L1 measurement. In the disclosed embodiment, the L1 measurement control message is sent to the terminal through MAC CE signaling. Since MAC CE signaling is a bottom layer signaling and has flexible configuration, it does not need to be processed by a high layer. Therefore, it has the characteristics of faster sending speed, which meets the response requirements of frequent cell switching under the 5G network.

[0115] The base station triggers the generation of an L1 measurement control message according to the measurement result in the L3 measurement report meeting the preset condition. The preset condition may be that the L3 measurement result corresponding to the serving cell is less than the preset switching threshold, or that the L3 measurement result corresponding to the serving cell is less than the L3 measurement result corresponding to the neighboring cell. The L1 measurement control message includes at least the cell information to be measured and the frequency band information to be measured. The cell information to be measured includes the cell to be measured for L1 measurement. The frequency band information to be measured includes the frequency band for L1 measurement of the cell to be measured, such as FR1 or FR2.

[0116] In an exemplary embodiment, the L3 measurement result of neighboring cell 1 is better than the L3 measurement result of the current serving cell. The base station sends an L1 measurement control message to the terminal through MAC CE signaling, instructing the terminal to perform L1 measurement on FR1 of neighboring cell 1.

[0117] In step S640, an L1 measurement report generated and reported by the terminal according to the L1 measurement control message is received.

[0118] In the disclosed embodiment, the L1 measurement control message provides information about the cell to be measured and information about the frequency band to be measured. The terminal performs L1 measurement on the frequency band to be measured of the cell to be measured, generates an L1 measurement report based on the measurement result, and reports it to the base station.

[0119] In step S650, a cell switching instruction is sent to the terminal; the cell switching instruction is generated according to the L1 measurement report; the cell switching instruction includes at least target cell information and target beam information, and is used to instruct the terminal to establish a connection with the target cell on the target beam.

[0120] In the disclosed embodiment, the base station determines whether the terminal performs cell switching, the target cell for switching, and the target beam for switching based on the received L1 measurement report. Based on the above information, a cell switching instruction is generated, and the instruction includes at least target cell information and target beam information. The terminal establishes a connection with the target cell on the specified target beam according to the cell switching instruction to complete the cell switching operation.

[0121] Based on the same inventive concept, the embodiment of the present disclosure provides a cell switching device, as described in the following embodiment. Since the principle of solving the problem in the communication authentication device embodiment is similar to that in the above method embodiment, the implementation of the communication authentication device embodiment can refer to the implementation of the above method embodiment, and the repeated parts will not be repeated.

[0122] Figure 7 FIG. 2 shows a schematic diagram of the structure of a cell switching device according to an embodiment of the present disclosure. Figure 7 As shown, the cell switching device 700 may include: an L3 measurement module 710 , an L1 measurement control message receiving module 720 , an L1 measurement module 730 , and a cell switching module 740 .

[0123] The L3 measurement module 710 is configured to receive an L3 measurement control message; perform L3 measurement on the serving cell and the neighboring cell according to the L3 measurement control message, and generate and report an L3 measurement report.

[0124] The L1 measurement control message receiving module 720 is configured to receive an L1 measurement control message sent through the MAC CE; the L1 measurement control message is generated according to the L3 measurement report.

[0125] The L1 measurement module 730 is configured to generate and report an L1 measurement report according to the L1 measurement control message.

[0126] The cell switching module 740 is configured to receive a cell switching instruction; the cell switching instruction includes at least target cell information and target beam information; and establish a connection with the target cell on the target beam according to the cell switching instruction.

[0127] In an exemplary embodiment, the L3 measurement module 710 may also be used to: perform L3 measurement on at least one beam in the serving cell and the neighboring cell of the low frequency band (FR1) according to the L3 measurement control message, and generate the L3 measurement report; save the beam measurement result of the at least one beam during the L3 measurement process;

[0128] The L1 measurement module 730 can also be used for: the L1 measurement control message instructs to perform L1 measurement on the cell to be measured of FR1; in response to the storage time of the beam measurement result saved in the L3 measurement process of the cell to be measured being less than or equal to a preset time threshold, generating the L1 measurement report according to the measurement result, and reporting it; in response to the storage time of the beam measurement result saved in the L3 measurement process of the cell to be measured being greater than the preset time threshold, performing L1 measurement on at least one beam in the cell to be measured of FRI; generating the L1 measurement report according to the beam measurement result of at least one beam greater than the preset L1 measurement threshold, and reporting it.

[0129] In an exemplary embodiment, the L1 measurement module 730 can also be used for: the L1 measurement control message instructs to perform L1 measurement on the cell to be measured in the high frequency band (FR2); to perform L1 measurement on at least one fine beam in the cell to be measured in the FR2; and to generate the L1 measurement report according to the beam measurement result of at least one fine beam greater than a preset L1 measurement threshold, and to report it.

[0130] In an exemplary embodiment, the L3 measurement control message includes a network configuration; the network configuration includes at least: a measurement configuration and a reporting configuration; the measurement configuration includes at least: a measurement timing and a measurement object; the measurement timing is a periodic measurement, a semi-periodic measurement or an event-triggered measurement; the measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS); the reporting configuration includes at least: a reporting timing and a reporting object; the reporting timing is a periodic reporting, a semi-periodic reporting or an event-triggered reporting; the reporting object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0131] In an exemplary embodiment, the cell switching apparatus 700 may be further configured to: receive adjustments to the network configuration via radio resource control (RRC) signaling.

[0132] In an exemplary embodiment, the L3 measurement module 710 can also be used to: perform L3 measurement on at least one beam in the serving cell and the neighboring cell according to the L3 measurement control message; filter the L3 measurement results greater than a preset L3 measurement threshold; and report the filtered L3 measurement results as the L3 measurement report.

[0133] Figure 8 FIG. 2 shows a schematic diagram of the structure of another cell switching device according to an embodiment of the present disclosure. Figure 8As shown, the cell switching device 800 may include: an L3 measurement control message sending module 810, an L3 measurement report receiving module 820, an L1 measurement control message sending module 830, an L1 measurement report receiving module 840, and a cell switching instruction sending module 850.

[0134] The L3 measurement control message sending module 810 is configured to send an L3 measurement control message to the terminal.

[0135] The L3 measurement report receiving module 820 is configured to receive the L3 measurement report generated and reported by the terminal according to the L3 measurement control message.

[0136] The L1 measurement control message sending module 830 is configured to send an L1 measurement control message to the terminal through a MAC CE; the L1 measurement control message is generated according to the L3 measurement report.

[0137] The L1 measurement report receiving module 840 is configured to receive the L1 measurement report generated and reported by the terminal according to the L1 measurement control message.

[0138] The cell switching instruction sending module 850 is configured to send a cell switching instruction to the terminal; the cell switching instruction is generated according to the L1 measurement report; the cell switching instruction includes at least target cell information and target beam information, and is used to instruct the terminal to establish a connection with the target cell on the target beam.

[0139] In an exemplary embodiment, the L3 measurement control message includes a network configuration; the network configuration includes at least: a measurement configuration and a reporting configuration; the measurement configuration includes at least: a measurement timing and a measurement object; the measurement timing is a periodic measurement, a semi-periodic measurement or an event-triggered measurement; the measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS); the reporting configuration includes at least: a reporting timing and a reporting object; the reporting timing is a periodic reporting, a semi-periodic reporting or an event-triggered reporting; the reporting object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0140] In an exemplary embodiment, the cell switching apparatus 800 may also be used to: send adjustments to the network configuration via radio resource control (RRC) signaling.

[0141] The L1 measurement control message sending module 830 can also be used to: generate the L1 measurement control message in response to the L3 measurement result corresponding to the serving cell in the L3 measurement report being less than a preset switching threshold or the L3 measurement result corresponding to the neighboring cell; the L1 measurement control message includes at least information about the cell to be measured and information about the frequency band to be measured.

[0142] Fig. 9 The structure diagram of the electronic device suitable for implementing the exemplary embodiment of the present disclosure is shown. Fig. 9 An electronic device 900 according to this embodiment of the present invention will be described. Fig. 9 The electronic device 900 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0143] like Fig. 9 As shown, the electronic device 900 is in the form of a general computing device. The components of the electronic device 900 may include, but are not limited to: the at least one processing unit 910, the at least one storage unit 920, a bus 930 connecting different system components (including the storage unit 920 and the processing unit 910), and a display unit 940.

[0144] The storage unit stores program codes, which can be executed by the processing unit 910, so that the processing unit 910 executes the steps according to various exemplary embodiments of the present invention described in the above “Exemplary Method” section of this specification.

[0145] The storage unit 920 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 9201 and / or a cache storage unit 9202 , and may further include a read-only storage unit (ROM) 9203 .

[0146] The storage unit 920 may also include a program / utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0147] Bus 930 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0148] The electronic device 900 may also communicate with one or more external devices 970 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 900, and / or communicate with any device that enables the electronic device 900 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 950. Furthermore, the electronic device 900 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter 960. As shown, the network adapter 960 communicates with other modules of the electronic device 900 via a bus 930. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 900, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, etc.

[0149] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the above method of the present specification is stored. In some possible implementations, various aspects of the present invention can also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to various exemplary embodiments of the present invention described in the above "Exemplary Method" section of the present specification.

[0150] The program product for implementing the above method according to the embodiment of the present invention may adopt a portable compact disk read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0151] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0152] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0153] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0154] Program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0155] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0156] In addition, although the steps of the method in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0157] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0158] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0159] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A cell switching method, characterized in that: The method comprises: receiving a network layer (L3) measurement control message; performing L3 measurements on a serving cell and a neighboring cell according to the L3 measurement control message, and generating and reporting an L3 measurement report; receiving a physical layer (L1) measurement control message sent via a media access control layer control message (MAC CE); the L1 measurement control message being generated based on the L3 measurement report; generating and reporting an L1 measurement report according to the L1 measurement control message; Receive a cell switching instruction; the cell switching instruction includes at least target cell information and target beam information; and establish a connection with the target cell on the target beam according to the cell switching instruction.

2. The method according to claim 1, characterized in that The performing L3 measurement on the serving cell and the neighboring cell according to the L3 measurement control message, generating and reporting the L3 measurement report, further includes: performing L3 measurement on at least one beam of the serving cell and a neighboring cell in a low frequency band (FR1) according to the L3 measurement control message, and generating the L3 measurement report; Saving a beam measurement result of the at least one beam during the L3 measurement process; The generating and reporting the L1 measurement report according to the L1 measurement control message includes: The L1 measurement control message instructs to perform L1 measurement on the cell to be measured in FR1; In response to the storage time of the beam measurement result stored in the L3 measurement process of the cell to be measured being less than or equal to a preset time threshold, generating the L1 measurement report according to the measurement result and reporting it; In response to the fact that the storage time of the beam measurement results saved during the L3 measurement process of the cell to be measured is greater than the preset time threshold, L1 measurement is performed on at least one beam in the cell to be measured of FR1; the L1 measurement report is generated based on the beam measurement result of at least one beam greater than the preset L1 measurement threshold, and is reported.

3. The method according to claim 1, characterized in that The generating and reporting the L1 measurement report according to the L1 measurement control message includes: The L1 measurement control message instructs to perform L1 measurement on the cell to be measured in the high frequency band (FR2); Perform L1 measurement on at least one fine beam in the measured cell of the FR2; generate the L1 measurement report according to the beam measurement result of at least one fine beam greater than a preset L1 measurement threshold, and report it.

4. The method according to claim 1, characterized in that: The L3 measurement control message includes network configuration; The network configuration at least includes: measurement configuration and reporting configuration; The measurement configuration includes at least: a measurement opportunity and a measurement object; the measurement opportunity is a periodic measurement, a semi-periodic measurement or an event-triggered measurement; the measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ) and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS); The reporting configuration includes at least: a reporting timing and a reporting object; the reporting timing is periodic reporting, semi-periodic reporting or event-triggered reporting; the reporting object is at least one of the reference signal received power (RSRP) of the synchronization signal block (SSB) or the channel state information reference signal (CSI-RS), the reference signal received quality (RSRQ), and the signal-to-noise ratio (SINR).

5. The method according to claim 4, characterized in that The method also includes receiving adjustments to the network configuration via radio resource control (RRC) signaling.

6. The method according to claim 1, characterized in that The performing L3 measurement on the serving cell and the neighboring cell according to the L3 measurement control message, and generating and reporting the L3 measurement report includes: Performing L3 measurement on at least one beam in a serving cell and a neighboring cell according to the L3 measurement control message; Filtering L3 measurement results greater than a preset L3 measurement threshold; The filtered L3 measurement result is reported as the L3 measurement report.

7. A cell switching method, characterized in that: The method comprises: Sending an L3 measurement control message to the terminal; receiving an L3 measurement report generated and reported by the terminal according to the L3 measurement control message; an L1 measurement control message sent to the terminal through the MAC CE; the L1 measurement control message is generated according to the L3 measurement report; receiving an L1 measurement report generated and reported by the terminal according to the L1 measurement control message; Sending a cell switching instruction to the terminal; the cell switching instruction is generated according to the L1 measurement report; the cell switching instruction includes at least target cell information and target beam information, and is used to instruct the terminal to establish a connection with the target cell on the target beam.

8. The method according to claim 7, characterized in that The L3 measurement control message includes network configuration; The network configuration at least includes: measurement configuration and reporting configuration; The measurement configuration includes at least: a measurement opportunity and a measurement object; the measurement opportunity is a periodic measurement, a semi-periodic measurement or an event-triggered measurement; the measurement object is at least one of a reference signal received power (RSRP), a reference signal received quality (RSRQ) and a signal-to-noise ratio (SINR) of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS); The reporting configuration includes at least: a reporting timing and a reporting object; the reporting timing is periodic reporting, semi-periodic reporting or event-triggered reporting; the reporting object is at least one of the reference signal received power (RSRP) of the synchronization signal block (SSB) or the channel state information reference signal (CSI-RS), the reference signal received quality (RSRQ), and the signal-to-noise ratio (SINR).

9. The method according to claim 8, characterized in that The method also includes sending adjustments to the network configuration via radio resource control (RRC) signaling.

10. The method according to claim 7, characterized in that The L1 measurement control message is generated according to the L3 measurement report, including: In response to the L3 measurement result corresponding to the serving cell in the L3 measurement report being less than a preset switching threshold or the L3 measurement result corresponding to the neighboring cell, the L1 measurement control message is generated; the L1 measurement control message includes at least information about the cell to be measured and information about the frequency band to be measured.

11. A cell switching device, characterized in that: include: An L3 measurement module configured to receive an L3 measurement control message; Perform L3 measurement on the serving cell and the neighboring cell according to the L3 measurement control message, and generate and report an L3 measurement report; An L1 measurement control message receiving module, configured to receive an L1 measurement control message sent by a MAC CE; the L1 measurement control message is generated according to the L3 measurement report; An L1 measurement module is configured to generate and report an L1 measurement report according to the L1 measurement control message; The cell switching module is configured to receive a cell switching instruction; the cell switching instruction includes at least target cell information and target beam information; and according to the cell switching instruction, establish a connection with the target cell on the target beam.

12. A cell switching device, characterized in that: include: An L3 measurement control message sending module, configured to send an L3 measurement control message to a terminal; An L3 measurement report receiving module, configured to receive an L3 measurement report generated and reported by the terminal according to the L3 measurement control message; An L1 measurement control message sending module, configured to send an L1 measurement control message to the terminal through a MAC CE; the L1 measurement control message is generated according to the L3 measurement report; An L1 measurement report receiving module, configured to receive an L1 measurement report generated and reported by the terminal according to the L1 measurement control message; The cell switching instruction sending module is configured to send a cell switching instruction to the terminal; the cell switching instruction is generated according to the L1 measurement report; the cell switching instruction includes at least target cell information and target beam information, and is used to instruct the terminal to establish a connection with the target cell on the target beam.

13. An electronic device, characterized in that: include: one or more processors; A storage device configured to store one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method according to any one of claims 1 to 6, or the method according to any one of claims 7 to 10.

14. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 or the method according to any one of claims 7 to 10 is implemented.

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