Cell switching processing method and device, terminal and storage medium

Abstract

The invention discloses a cell switching processing method and device, a terminal and a storage medium, and belongs to the technical field of communication, and the cell switching processing method comprises the steps that the terminal obtains switching auxiliary information, and the switching auxiliary information comprises public switching configuration; the switching auxiliary information is used for assisting the terminal in switching from a service cell to a target cell; under the condition that the terminal does not acquire the switching auxiliary information, the terminal executes a first operation; wherein the first operation comprises executing radio resource control (RRC) connection reestablishment or entering an RRC idle state.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a cell switching processing method, device, terminal and storage medium. Background Art

[0002] With the development of communication technology, satellite-based non-terrestrial network (NTN) communication systems are becoming more and more widely used. In the NTN scenario, the satellite movement will cause frequent service link and feedback link switching, which will cause all UEs in the NTN cell to frequently perform cell switching. In this process, if the terminal lacks relevant configuration or information, it will cause the terminal to be unable to implement cell switching, which will frequently trigger the acquisition of relevant configuration or information, resulting in increased power consumption and poor communication reliability. Summary of the invention

[0003] The embodiments of the present application provide a cell switching processing method, device, terminal and storage medium, which can solve the problems of poor reliability and increased power consumption of terminal communication in NTN scenarios.

[0004] In a first aspect, a cell handover processing method is provided, including:

[0005] The terminal performs acquisition of handover assistance information, where the handover assistance information includes a common handover configuration, and the handover assistance information is used to assist the terminal in handing over from a serving cell to a target cell;

[0006] In a case where the terminal fails to acquire the handover auxiliary information, the terminal performs a first operation;

[0007] The first operation includes: performing radio resource control RRC connection reconstruction or entering RRC idle state.

[0008] In a second aspect, a cell handover processing method is provided, characterized by comprising:

[0009] The terminal performs acquisition of handover assistance information, where the handover assistance information includes a common handover configuration, and the handover assistance information is used to assist the terminal in handing over from a serving cell to a target cell;

[0010] In a case where the terminal fails to acquire the handover auxiliary information, the terminal performs a first operation;

[0011] The first operation includes: performing radio resource control RRC connection reconstruction or entering RRC idle state.

[0012] In a third aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0013] In a fourth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0014] In a fifth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect.

[0015] In a sixth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.

[0016] In a seventh aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the method as described in the first aspect.

[0017] In the embodiment of the present application, the terminal performs acquisition of handover auxiliary information, the handover auxiliary information includes a common handover configuration, and the handover auxiliary information is used to assist the terminal in switching from a serving cell to a target cell; when the terminal fails to obtain the handover auxiliary information, the terminal performs a first operation; wherein the first operation includes: RRC connection reconstruction or entering an RRC idle state. In this way, since the RRC connection reconstruction is performed when the terminal fails to obtain the handover auxiliary information, the reliability of the terminal communication can be improved, or the terminal enters an RRC idle state, thereby reducing the power consumption in this scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0019] Figure 2 is a schematic diagram of a non-terrestrial network structure to which the embodiments of the present application can be applied;

[0020] Figure 3 It is a flowchart of a cell switching processing method provided in an embodiment of the present application;

[0021] Figure 4 is a structural diagram of a cell switching processing device provided in an embodiment of the present application;

[0022] Figure 5is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0023] Figure 6 It is a schematic diagram of the structure of the terminal provided in the embodiment of the present application. DETAILED DESCRIPTION

[0024] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0025] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0026] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0027] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0028] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0029] For ease of understanding, some contents involved in the embodiments of the present application are described below:

[0030] 1. Non-terrestrial network.

[0031] Non-terrestrial networks refer to networks or network segments that use satellites or unmanned aircraft systems (UAS) platforms or high-altitude communication platforms (HAPS) for transmission. Compared with terrestrial communication systems, satellite-based non-terrestrial communication systems have a wider coverage range. Typical applicable scenarios include situations where ground base stations cannot be built or ground base stations are damaged, such as continuous coverage in remote mountainous areas, deserts, oceans, and forests, or emergency communications when natural disasters occur and ground base stations are damaged.

[0032] Satellite: including Low Earth Orbiting (LEO) satellites, Medium Earth Orbiting (MEO) satellites, Geostationary Earth Orbiting (GEO) satellites and Highly Elliptical Orbiting (HEO) satellites.

[0033] Typical scenarios of non-terrestrial networks include transparent forwarding, where satellites act as forwarding relays, such as Figure 2 As shown in the figure, the link between the satellite and the terminal is the service link (Service Link), and the link between the satellite and the ground base station is the feedback link (Feeder Link).

[0034] It should be pointed out that since the distance between the satellite and the base station and UE is very large, it will cause a large loss in the wireless link between the base station and the satellite and between the satellite and the UE, resulting in an extremely low wireless link budget for NTN communication, and thus only supporting a very low wireless transmission rate.

[0035] 2. Service link switching and feedback link switching.

[0036] like Figure 2 As shown, the link between the satellite and the terminal is the service link (Service Link), and the link between the satellite and the ground base station is the feedback link (Feeder Link). In some scenarios (such as low-orbit satellite LEO), due to satellite movement, at least one of the service link and feeder link will switch. For service link switching, the service satellite of all UEs in the cell needs to be switched from one satellite to another. For feeder link switching, a satellite needs to be switched from one gateway (or base station) to another gateway (or base station). In the related art, whether it is a service link switching or a feeder link switching scenario, for the connected UE in the NTN cell, the cell switching process needs to be performed.

[0037] 3. Switching mechanism in NTN.

[0038] To adapt to the communication characteristics of NTN, the following enhancement solutions are introduced:

[0039] Measurement based HO: Introducing location based measurement report. The base station configures a location event for the UE, and the UE reports the measurement result when the location event is met. The base station can decide to perform handover and the target cell for handover based on the UE's measurement results.

[0040] Conditional Handover (CHO): Time based CHO and location based CHO are introduced. For conditional handover, time event and location event are not configured at the same time. When configuring time event or location event, signal quality event (such as A3 event, A4 event, or A5 event) must be configured at the same time. UE initiates cell handover process to the target cell when evaluating that all trigger events are met.

[0041] The cell switching processing method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0042] Reference Figure 3 , the embodiment of the present application provides a cell switching processing method, such as Figure 3 As shown, the cell switching processing method includes:

[0043] Step 301: The terminal acquires handover assistance information, where the handover assistance information includes a common handover configuration and is used to assist the terminal in handing over from a serving cell to a target cell.

[0044] Step 302: When the terminal fails to obtain the handover auxiliary information, the terminal performs a first operation;

[0045] The first operation includes: performing radio resource control (RRC) connection reconstruction or entering an RRC idle state.

[0046] In an embodiment of the present application, in an NTN scenario, when the terminal obtains the above-mentioned handover assistance information, the terminal can perform cell handover triggered by the handover of the service link and the feeder link caused by the satellite movement based on the handover assistance information. Since the handover assistance information includes a common handover configuration, the network side device sends the handover assistance information in the form of broadcast or multicast, thereby reducing the signaling overhead on the network side.

[0047] Optionally, the terminal failing to obtain the switching auxiliary information may be understood as the terminal failing to receive the switching auxiliary information, failing to obtain the locally stored switching auxiliary information, or receiving the switching auxiliary information but failing to demodulate it successfully.

[0048] Optionally, since the RRC connection is reestablished when the terminal fails to obtain the handover auxiliary information, the continuity of the terminal's current service can be guaranteed, thereby improving the reliability of the terminal's communication. Since the terminal can perform a local release to enter the RRC idle state when the terminal fails to obtain the handover auxiliary information, it is not necessary to perform frequent handovers in the absence of handover auxiliary information or handover-related information / configuration, which can reduce the power consumption of the terminal, and can directly reestablish the RRC connection when the terminal has data to send, thereby reducing the data transmission delay and improving the reliability of the terminal's communication.

[0049] Optionally, the above switching configuration may include at least one of the following:

[0050] Target cell configuration information;

[0051] The switching event configuration information is used to indicate a timing for the terminal to perform a cell switching.

[0052] In the embodiment of the present application, the terminal performs acquisition of handover auxiliary information, the handover auxiliary information includes a common handover configuration, and the handover auxiliary information is used to assist the terminal in switching from a serving cell to a target cell; when the terminal fails to obtain the handover auxiliary information, the terminal performs a first operation; wherein the first operation includes: RRC connection reconstruction or entering an RRC idle state. In this way, since the RRC connection reconstruction is performed when the terminal fails to obtain the handover auxiliary information, the reliability of the terminal communication can be improved, or when the terminal fails to obtain the handover auxiliary information, the RRC idle state is entered, thereby reducing the power consumption of the terminal.

[0053] Optionally, in some embodiments, after the terminal performs the first operation, the method further includes:

[0054] The terminal excludes a first cell in a cell selection process, where the first cell is a serving cell of the terminal before performing the first operation.

[0055] In the embodiment of the present application, the above-mentioned first cell can be understood as a cell that is about to stop providing services or has stopped providing services. Since the first cell is excluded in the cell selection process, it is possible to avoid reselecting the first cell that is about to stop providing services or has stopped providing services, resulting in network service interruption, thereby further improving the reliability of communication.

[0056] Optionally, in some embodiments, the terminal excluding the first cell in the cell selection process includes:

[0057] Within a preset time period, the terminal excludes the first cell in a cell selection process;

[0058] The starting moment of the preset time period is the first moment or any moment after the first moment, and the first moment is the moment when the first operation is performed.

[0059] Optionally, the value of the preset time period may be a predefined value such as 300s, 2s, etc. In other words, the end time is the start time of the preset time period + the time indicated by the value of the preset time period; Optionally, the end time of the preset time may also be a protocol agreement or network configuration, for example, it may be the time when the first cell stops service or a time before the time when the first cell stops service.

[0060] Optionally, in some embodiments, the terminal excluding the first cell in the cell selection process includes performing at least one of the following in the cell selection process:

[0061] not considering the first cell as a suitable cell;

[0062] considering the first cell as a prohibited cell;

[0063] not measuring the first cell;

[0064] The first cell is not selected.

[0065] It should be noted that for different behaviors of the first operation, the corresponding first preset duration may be different. For example, in some embodiments, within 2 seconds after initiating the RRC connection reestablishment process, the terminal regards the first cell as a prohibited cell. In some embodiments, within 300 seconds of entering the RRC idle state, the terminal regards the first cell as a prohibited cell.

[0066] In the embodiment of the present application, since the cell accessed by the terminal is usually a cell with good signal quality, but the satellite is constantly moving, the terminal excludes the first cell in the cell selection process by limiting it to a preset time period, so that when the first cell resumes providing services after the preset time period, the terminal can continue to reselect the first cell to ensure the signal quality of the access cell.

[0067] Optionally, in some embodiments, when the terminal fails to acquire the handover auxiliary information, the terminal performing the first operation includes:

[0068] In the case where the terminal fails to obtain the handover auxiliary information, the terminal considers that a radio link fails (Radio Link Failure, RLF);

[0069] Based on the RLF, the terminal performs the first operation.

[0070] Optionally, in some embodiments, when the terminal fails to acquire the handover auxiliary information, the terminal performing the first operation includes:

[0071] When the terminal fails to acquire the handover auxiliary information and a first condition related to quality of service (QoS) is met, the terminal performs a first operation.

[0072] Optionally, the first condition includes at least one of the following:

[0073] The interval between the current time and the time when the serving cell stops serving is less than or equal to the first preset duration;

[0074] The current time reaches or exceeds the second time indicated by the network side device;

[0075] The signal strength of the serving cell measured by the terminal is less than or equal to the first threshold;

[0076] The signal quality of the serving cell measured by the terminal is less than or equal to the second threshold;

[0077] The distance between the terminal's position and the reference position of the serving cell is greater than or equal to a third threshold;

[0078] The signal strength of at least one neighboring cell is greater than or equal to a fourth threshold;

[0079] The signal quality of at least one neighboring cell is greater than or equal to a fifth threshold;

[0080] The distance between the position of the terminal and the reference position of at least one neighboring cell is less than or equal to a sixth threshold;

[0081] The signal strength of at least one neighboring cell is greater than the signal strength of the serving cell, and the difference between the signal strength of the at least one neighboring cell and the signal strength of the serving cell is greater than a first offset value;

[0082] The signal quality of at least one neighboring cell is greater than the signal quality of the serving cell, and the difference between the signal quality of the at least one neighboring cell and the signal quality of the serving cell is greater than the second offset value.

[0083] In the embodiment of the present application, the interval between the above current time and the time when the serving cell stops service is less than or equal to the first preset duration, which can be understood as: the serving cell is about to stop service, that is, the current time is close to the time when the serving cell stops service (t-Service). For example, in some embodiments, the terminal determines that the current time is close to the time when the serving cell stops service based on implementation, and the specific terminal can be set according to actual needs based on the implementation process. For example, when a certain trigger condition is met, the terminal can consider that the current time is close to the time when the serving cell stops service.

[0084] It should be noted that for different ways of obtaining the switching auxiliary information (i.e., obtaining the switching auxiliary information by broadcasting or obtaining the switching auxiliary information by multicasting), the corresponding first conditions may be the same or different, wherein the first conditions being different may be understood as at least one of the following:

[0085] The first condition contains the condition options;

[0086] The condition options included in the first condition are the same, but the corresponding first preset duration, second moment, first threshold, second threshold, third threshold, fourth threshold, fifth threshold, sixth threshold, first bias value or second bias value have different values.

[0087] In some embodiments, the terminal can obtain the time when the service cell stops service (t-Service), and when the interval between the current time and the time when the service cell stops service is less than or equal to a first preset duration, the terminal considers that the current time is close to the time when the service cell stops service; wherein, the first preset duration is agreed by the protocol or configured by the network side device, and the unit of the first preset duration can be seconds, milliseconds, microseconds, frames, subframes, time slots and symbols.

[0088] Optionally, the second moment may be an absolute time (eg, Universal Time Coordinated, UTC) or a relative time (eg, a system frame number, a subframe number, etc.).

[0089] Optionally, the above-mentioned signal strength may include at least one of a reference signal received power (Reference Signal Received Power, RSRP), a signal-to-noise and interference ratio (signal-to-noise and interference ratio, SINR) and a signal-to-noise ratio (Signal Noise Ratio, SNR), and the above-mentioned signal quality may be understood as a reference signal received quality (Reference Signal Received Quality, RSRQ).

[0090] Optionally, the first threshold, second threshold, third threshold, fourth threshold, fifth threshold, sixth threshold, first bias value and second bias value mentioned above may be agreed upon by a protocol or indicated by a network side device and are not further limited here.

[0091] Optionally, in some embodiments, the terminal failing to acquire the handover auxiliary information includes at least one of the following:

[0092] The first system information is not obtained within N system information windows;

[0093] The first system information is not obtained within the first time window;

[0094] Until a third moment, the terminal does not obtain the first system information, and the third moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to the second preset duration;

[0095] Until a fourth moment, the terminal does not acquire the first system information, the fourth moment is before the time when the serving cell stops serving, and the time interval between the fourth moment and the time when the serving cell stops serving is less than or equal to a third preset duration;

[0096] Until a fifth moment, the terminal does not obtain the first system information, where the fifth moment is a time configured by the network side device;

[0097] The first system information carries the switching auxiliary information, and the system information (System Information, SI) window is a system information window corresponding to a system information message SI message including the first system information.

[0098] In an embodiment of the present application, the network side device can send the switching auxiliary information through the first system information, and the terminal supports performing the switching based on the public switching configuration provided by broadcasting. The above-mentioned SI-window is a window for monitoring the first system information, that is, the SI-window is the SI-window corresponding to the SI message including the first system information.

[0099] Optionally, until the third moment, the fourth moment or the fifth moment, the terminal does not obtain the first system information, which can be understood as the serving cell is about to stop service (ie, the current time is close to the time when the serving cell stops service), and the terminal does not obtain the first system information.

[0100] Optionally, the third moment may be understood as a moment when the time interval between the time when the terminal determines based on implementation and the time when the serving cell stops serving is less than or equal to a second preset duration.

[0101] Optionally, the fifth moment may be an absolute time (eg, UTC) or a relative time (eg, a system frame number, a subframe number, etc.).

[0102] Optionally, in some embodiments, the terminal performs acquisition of handover auxiliary information, including:

[0103] The terminal receives a system message SIB1 from a network side device, where the SIB1 includes scheduling information of the first system information;

[0104] The terminal acquires the first system information based on the scheduling information, where the first system information carries the handover auxiliary information.

[0105] Optionally, the above scheduling information may include relevant parameters of the SI-window corresponding to the first system information. For example, the relevant parameters of the SI-window include the period (si-Periodicity) and length (si-WindowLength) of the SI-window. The terminal can calculate the starting point and end point of the periodic SI-window based on these parameters.

[0106] Optionally, in some embodiments, before the terminal acquires the first system information based on the scheduling information, the method further includes:

[0107] The terminal acquires time information, where the time information is used to indicate at least one of the following:

[0108] The network side device sends the first system information within N system information windows;

[0109] The terminal needs to obtain the first system information within N system information windows;

[0110] The system information window is a system information window corresponding to a system information message SI message including the first system information, and N is a positive integer.

[0111] In the embodiment of the present application, the time information may be a value of N. After the terminal obtains the time information, if the first system information cannot be obtained within N SI-windows, the terminal considers that the switching auxiliary information cannot be obtained. In other words, the time information may be understood as indicating that if the first system information cannot be obtained within N SI-windows, the terminal considers that the switching auxiliary information cannot be obtained.

[0112] Optionally, the above time information may be indicated by a network-side device or agreed upon by a protocol.

[0113] Optionally, in some embodiments, before the terminal acquires the first system information based on the scheduling information, the method further includes:

[0114] The terminal obtains a first time window, where the first time window is used to indicate at least one of the following:

[0115] The network side device sends the first system information within a first time window;

[0116] The terminal needs to obtain the first system information within a first time window.

[0117] In the embodiment of the present application, after the terminal obtains the first time window, if the first system information cannot be obtained within the first time window, the terminal considers that the handover auxiliary information cannot be obtained. In other words, the first time window can be understood as: used to indicate that if the first system information cannot be obtained within the first time window, the terminal considers that the handover auxiliary information cannot be obtained.

[0118] Optionally, the above time information may be indicated by a network-side device or agreed upon by a protocol.

[0119] Optionally, in some implementations, the first time window is determined based on any one of the following:

[0120] sixth moment and first duration;

[0121] A sixth moment and a seventh moment, wherein the seventh moment is the end moment of the first time window;

[0122] the running time of the first timer, the start time of the first timer being the sixth time;

[0123] The sixth moment is the starting moment of the first time window.

[0124] Optionally, the sixth moment satisfies any one of the following:

[0125] The sixth moment is configured by the network side device;

[0126] The terminal considers that the moment when the scheduling information of the first system information appears for the first time in SIB1 is the sixth moment.

[0127] In an embodiment of the present application, the sixth moment may be indicated explicitly or implicitly. If indicated explicitly, that is, configured by the network side, the sixth moment may be an absolute time (e.g., UTC) or a relative time (e.g., a frame, a subframe, a symbol, a time slot). If it is a relative time, the timing reference of the sixth moment is the service cell, that is, the frame number and subframe number indicated in the sixth moment refer to the frame number and subframe of the service cell.

[0128] If the sixth time is represented by a frame and / or a subframe, the terminal considers the sixth time (represented by the frame number (SFN) and the subframe number in this field) to be one of the following:

[0129] The field SFN indicates the current SFN or the next upcoming SFN after the frame in which the message indicating the first time is received;

[0130] is the frame closest to receiving the message indicating the first time window;

[0131] If the first time is implicitly indicated, that is, the terminal considers that the time when the scheduling information of the first system information first appears in SIB1 is the first time.

[0132] It should be noted that the terminal considers that the moment when the scheduling information of the first system information first appears in SIB1 can be any position of the system information window, for example, the starting position or the ending position or any position in between of the system information window for scheduling SIB1.

[0133] Optionally, the first duration may be displayed as an indication, and the unit may be seconds, milliseconds, microseconds, frames, subframes, symbols or time slots.

[0134] Optionally, the seventh moment satisfies any of the following:

[0135] The seventh moment is configured by the network side device;

[0136] The terminal considers that the time when the scheduling information of the first system information appears for the last time in SIB1 is the seventh time;

[0137] The terminal determines the seventh moment based on the time when the serving cell stops serving.

[0138] In the embodiment of the present application, the seventh moment may be indicated explicitly (in the same manner as the sixth moment, and is not indicated here again). The seventh moment may also be indicated implicitly, for example, the terminal considers the last time the scheduling information of the first system information appears in SIB1 to be the seventh moment.

[0139] It should be noted that the terminal considers that the time when the scheduling information of the first system information last appears in SIB1 can be any position of the system information window, for example, the starting position or the ending position of the system information window for scheduling SIB1 or any position in between.

[0141] Optionally, in some embodiments, the terminal determines the seventh moment based on the time when the serving cell stops serving, including any one of the following:

[0142] The terminal considers that the time indicated by the first offset value before the time when the serving cell stops serving is the seventh time;

[0143] The terminal considers that the time when the serving cell stops serving is the seventh time.

[0144] Optionally, in some embodiments, when the first time window is determined based on the running time of the first timer, the method further includes:

[0145] During the running of the first timer, if the terminal acquires the first system information, the terminal stops the first timer.

[0146] In an embodiment of the present application, the starting point of the above-mentioned first timer can be displayed or implicitly indicated, specifically referring to the indication method of the above-mentioned sixth moment, the running length of the first timer can be displayed and indicated, and the unit can be seconds, milliseconds, microseconds, frames, subframes, symbols, and time slots.

[0147] Optionally, in the embodiment of the present application, the terminal may perform the following actions:

[0148] At the starting point of the timer indicated by the network side device (i.e., the sixth moment), the terminal starts the first timer, and the value of the first timer is set to the above-mentioned running length;

[0149] If the first timer times out and the terminal fails to obtain the first system information, the terminal performs a first operation;

[0150] If the first timer times out and the terminal does not obtain the first system information, the terminal considers that the wireless link fails. In the case of wireless link failure, the terminal performs a first operation.

[0151] During the running of the first timer, if the terminal obtains the first system information, the terminal stops the first timer.

[0152] Optionally, the above time information or the first time window may be carried by system information (eg, SIB1, SIB19) or dedicated signaling (eg, RRC reconfiguration message).

[0153] Optionally, in some embodiments, the handover auxiliary information that is not acquired by the terminal includes at least one of the following:

[0154] The first group of identifiers cannot be heard within the second time window;

[0155] The first group of identifiers cannot be monitored at the resource location of the first group of identifiers;

[0156] Until an eighth moment, the terminal does not monitor the first group identifier, and the eighth moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to a fourth preset time length;

[0157] Until a ninth moment, the terminal does not monitor the first group identifier, the ninth moment is before the time when the serving cell stops serving, and the time interval between the ninth moment and the time when the serving cell stops serving is less than or equal to a fifth preset duration;

[0158] Until the tenth moment, the terminal does not monitor the first group identifier, and the tenth moment is the time configured by the network side device;

[0159] The first group identifier is used to indicate scheduling the terminal to receive the switching auxiliary information, and the second time window is a time window for monitoring the first group identifier.

[0160] In the embodiment of the present application, the network side device can send the handover auxiliary information by multicasting, and the terminal supports the handover execution based on the public handover configuration provided by the multicasting. Specifically, the terminal monitors the first group identifier to obtain the handover auxiliary information, and then can execute the cell handover based on the handover auxiliary information.

[0161] Optionally, until the eighth, ninth or tenth moment, the terminal does not monitor the first group of identifiers, which can be understood as the serving cell is about to stop service (ie, the current time is close to the time when the serving cell stops service), and the terminal does not monitor the first group of identifiers.

[0162] Optionally, the eighth moment may be understood as a moment when the time interval between the time when the terminal determines based on implementation and the time when the serving cell stops serving is less than or equal to a fourth preset duration.

[0163] Optionally, the tenth moment may be an absolute time (eg, UTC) or a relative time (eg, a system frame number, a subframe number, etc.).

[0164] Optionally, in some embodiments, the terminal receiving the handover auxiliary information includes:

[0165] The terminal obtains the handover auxiliary information by monitoring a first group identifier, where the first group identifier is used to indicate scheduling the terminal to receive the handover auxiliary information.

[0166] Optionally, the first group identifier may be a newly introduced group identifier or a related identifier (such as a paging radio network temporary identifier (P-RNTI)). The behavior of the terminal monitoring the first group identifier may be: monitoring a physical downlink control channel (PDCCH) encrypted by the first group identifier.

[0167] Optionally, in some embodiments, before the terminal acquires the handover auxiliary information by monitoring the first group identifier, the method further includes:

[0168] The terminal obtains a second time window, where the second time window is used to indicate at least one of the following:

[0169] The network side device sends the first group identifier within a second time window;

[0170] The terminal monitors the first group of identifiers within the second time window.

[0171] In an embodiment of the present application, if the first group of identifiers cannot be heard within the second time window, the terminal considers that the first group of identifiers cannot be obtained, or if the first group of identifiers cannot be heard within the second time window, the terminal considers that the switching auxiliary information cannot be obtained.

[0172] Optionally, in some embodiments, the second time window is determined based on any one of the following:

[0173] the eleventh moment and the second duration;

[0174] An eleventh moment and a twelfth moment, the twelfth moment being the end moment of the second time window;

[0175] the running time of the second timer, the start time of the second timer being the eleventh time;

[0176] The eleventh moment is the starting moment of the second time window.

[0177] Optionally, in some embodiments, before the terminal acquires the handover auxiliary information by monitoring the first group identifier, the method further includes:

[0178] The terminal obtains a target resource location, where the target resource location is a resource location used to monitor the first group identifier.

[0179] In the embodiment of the present application, the above-mentioned target resource position may include at least one of a time domain position and a frequency domain position.

[0180] Optionally, the second time window or the target resource location information may be carried by system information (eg, SIB1, SIB19) or by dedicated signaling (eg, RRCReconfiguration message).

[0181] The cell handover processing method provided in the embodiment of the present application may be executed by a cell handover processing device. In the embodiment of the present application, the cell handover processing device executing the cell handover processing method is taken as an example to illustrate the cell handover processing device provided in the embodiment of the present application.

[0182] Reference Figure 4 The embodiment of the present application also provides a cell switching processing device, such as Figure 4 As shown, the cell switching processing device 400 includes:

[0183] A first execution module 401 is configured to execute acquisition of handover assistance information, where the handover assistance information includes a common handover configuration and is used to assist a terminal in handing over from a serving cell to a target cell;

[0184] A second execution module 402, configured to execute a first operation when the terminal fails to obtain the handover auxiliary information;

[0185] The first operation includes: performing radio resource control RRC connection reconstruction or entering RRC idle state.

[0186] Optionally, the cell switching processing device 400 further includes:

[0187] The processing module is used to exclude a first cell in a cell selection process, where the first cell is a serving cell of the terminal before the first operation is performed.

[0188] Optionally, the processing module is specifically configured to: exclude the first cell in a cell selection process within a preset time period;

[0189] The starting moment of the preset time period is the first moment or any moment after the first moment, and the first moment is the moment when the first operation is performed.

[0190] Optionally, the processing module is specifically configured to: exclude the first cell in the cell selection process includes performing at least one of the following in the cell selection process:

[0191] not considering the first cell as a suitable cell;

[0192] considering the first cell as a prohibited cell;

[0193] not measuring the first cell;

[0194] The first cell is not selected.

[0195] Optionally, the second execution module 402 is specifically used to: when the terminal fails to obtain the switching auxiliary information, consider that the radio link fails RLF; based on the RLF, the terminal performs the first operation.

[0196] Optionally, the second execution module 402 is specifically configured to: when the terminal fails to obtain the handover auxiliary information and satisfies a first condition related to quality of service QoS, execute a first operation.

[0197] Optionally, the first condition includes at least one of the following:

[0198] The interval between the current time and the time when the serving cell stops serving is less than or equal to the first preset duration;

[0199] The current time reaches or exceeds the second time indicated by the network side device;

[0200] The signal strength of the serving cell measured by the terminal is less than or equal to the first threshold;

[0201] The signal quality of the serving cell measured by the terminal is less than or equal to the second threshold;

[0202] The distance between the terminal's position and the reference position of the serving cell is greater than or equal to a third threshold;

[0203] The signal strength of at least one neighboring cell is greater than or equal to a fourth threshold;

[0204] The signal quality of at least one neighboring cell is greater than or equal to a fifth threshold;

[0205] The distance between the position of the terminal and the reference position of at least one neighboring cell is less than or equal to a sixth threshold;

[0206] The signal strength of at least one neighboring cell is greater than the signal strength of the serving cell, and the difference between the signal strength of the at least one neighboring cell and the signal strength of the serving cell is greater than a first offset value;

[0207] The signal quality of at least one neighboring cell is greater than the signal quality of the serving cell, and the difference between the signal quality of the at least one neighboring cell and the signal quality of the serving cell is greater than the second offset value.

[0208] Optionally, the terminal failing to acquire the handover auxiliary information includes at least one of the following:

[0209] The first system information is not obtained within N system information windows;

[0210] The first system information is not obtained within the first time window;

[0211] Until a third moment, the terminal does not obtain the first system information, and the third moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to the second preset duration;

[0212] Until a fourth moment, the terminal does not acquire the first system information, the fourth moment is before the time when the serving cell stops serving, and the time interval between the fourth moment and the time when the serving cell stops serving is less than or equal to a third preset duration;

[0213] Until a fifth moment, the terminal does not obtain the first system information, where the fifth moment is a time configured by the network side device;

[0214] The first system information carries the switching auxiliary information, and the system information window is a system information window corresponding to a system information message SI message including the first system information.

[0215] Optionally, the first execution module 401 is specifically configured to:

[0216] Receiving a system message SIB1 from a network side device, where the SIB1 includes scheduling information of the first system information;

[0217] The first system information is acquired based on the scheduling information, where the first system information carries the switching auxiliary information.

[0218] Optionally, the first execution module 401 is further used to: obtain time information, where the time information is used to indicate at least one of the following:

[0219] The network side device sends the first system information within N system information windows;

[0220] The terminal needs to obtain the first system information within N system information windows;

[0221] The system information window is a system information window corresponding to a system information message SI message including the first system information, and N is a positive integer.

[0222] Optionally, the first execution module 401 is further used to: obtain a first time window, where the first time window is used to indicate at least one of the following:

[0223] The network side device sends the first system information within a first time window;

[0224] The terminal needs to obtain the first system information within a first time window.

[0225] Optionally, the first time window is determined based on any one of the following:

[0226] sixth moment and first duration;

[0227] A sixth moment and a seventh moment, wherein the seventh moment is the end moment of the first time window;

[0228] the running time of the first timer, the start time of the first timer being the sixth time;

[0229] The sixth moment is the starting moment of the first time window.

[0230] Optionally, the second execution module 402 is further configured to: during the running of the first timer, if the terminal obtains the first system information, stop the first timer.

[0231] Optionally, the sixth moment satisfies any one of the following:

[0232] The sixth moment is configured by the network side device;

[0233] The terminal considers that the moment when the scheduling information of the first system information appears for the first time in SIB1 is the sixth moment.

[0234] Optionally, the seventh moment satisfies any of the following:

[0235] The seventh moment is configured by the network side device;

[0236] The terminal considers that the time when the scheduling information of the first system information appears for the last time in SIB1 is the seventh time;

[0237] The terminal determines the seventh moment based on the time when the serving cell stops serving.

[0238] Optionally, the terminal determines the seventh moment based on the time when the serving cell stops serving, including any one of the following:

[0239] The terminal considers that the time indicated by the first offset value before the time when the serving cell stops serving is the seventh time;

[0240] The terminal considers that the time when the serving cell stops serving is the seventh time.

[0241] Optionally, the handover auxiliary information that is not acquired by the terminal includes at least one of the following:

[0242] The first group of identifiers cannot be heard within the second time window;

[0243] The first group of identifiers cannot be monitored at the resource location of the first group of identifiers;

[0244] Until an eighth moment, the terminal does not monitor the first group identifier, and the eighth moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to a fourth preset time length;

[0245] Until a ninth moment, the terminal does not monitor the first group identifier, the ninth moment is before the time when the serving cell stops serving, and the time interval between the ninth moment and the time when the serving cell stops serving is less than or equal to a fifth preset duration;

[0246] Until the tenth moment, the terminal does not monitor the first group identifier, and the tenth moment is the time configured by the network side device;

[0247] The first group identifier is used to indicate scheduling the terminal to receive the switching auxiliary information, and the second time window is a time window for monitoring the first group identifier.

[0248] Optionally, the terminal receiving the handover auxiliary information includes:

[0249] The terminal obtains the handover auxiliary information by monitoring a first group identifier, where the first group identifier is used to indicate scheduling the terminal to receive the handover auxiliary information.

[0250] Optionally, the first execution module 401 is further used to: obtain a second time window, where the second time window is used to indicate at least one of the following:

[0251] The network side device sends the first group identifier within a second time window;

[0252] The terminal monitors the first group of identifiers within the second time window.

[0253] Optionally, the second time window is determined based on any one of the following:

[0254] the eleventh moment and the second duration;

[0255] An eleventh moment and a twelfth moment, the twelfth moment being the end moment of the second time window;

[0256] the running time of the second timer, the start time of the second timer being the eleventh time;

[0257] The eleventh moment is the starting moment of the second time window.

[0258] Optionally, the first execution module 401 is further used to: obtain a target resource location, where the target resource location is a resource location used to monitor the first group identifier.

[0259] The cell switching processing device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include but is not limited to the types of the terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0260] The cell switching processing device provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0261] like Figure 5 As shown, an embodiment of the present application also provides a communication device 500, including a processor 501 and a memory 502, and the memory 502 stores a program or instruction that can be executed on the processor 501. When the program or instruction is executed by the processor 501, the various steps of the above-mentioned cell switching processing method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0262] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 3 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 6 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0263] The terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609 and at least some of the components of a processor 610.

[0264] Those skilled in the art will appreciate that the terminal 600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 610 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 6The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0265] It should be understood that in the embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes a touch panel 6071 and at least one of other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0266] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 601 can transmit the data to the processor 610 for processing; in addition, the RF unit 601 can send uplink data to the network side device. Generally, the RF unit 601 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0267] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 609 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 609 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0268] The processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 610.

[0269] The radio frequency unit 601 performs acquisition of handover assistance information, where the handover assistance information includes a common handover configuration, and the handover assistance information is used to assist the terminal in handing over from a serving cell to a target cell;

[0270] The processor 610 is configured to perform a first operation when the terminal fails to obtain the handover auxiliary information;

[0271] The first operation includes: performing radio resource control RRC connection reconstruction or entering RRC idle state.

[0272] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned cell switching processing method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0273] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned cell switching processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0274] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0275] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned cell switching processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0276] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0277] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes of the above-mentioned cell switching processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0278] An embodiment of the present application further provides a wireless communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the cell switching processing method as described above.

[0279] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0280] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0281] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A cell handover processing method, characterized in that: include: The terminal performs acquisition of handover assistance information, where the handover assistance information includes a common handover configuration, and the handover assistance information is used to assist the terminal in handing over from a serving cell to a target cell; In a case where the terminal fails to acquire the handover auxiliary information, the terminal performs a first operation; The first operation includes: performing radio resource control RRC connection reconstruction or entering RRC idle state.

2. The method according to claim 1, characterized in that After the terminal performs the first operation, the method further includes: The terminal excludes a first cell in a cell selection process, where the first cell is a serving cell of the terminal before performing the first operation.

3. The method according to claim 2, characterized in that The terminal excluding the first cell in the cell selection process includes: Within a preset time period, the terminal excludes the first cell in a cell selection process; The starting moment of the preset time period is the first moment or any moment after the first moment, and the first moment is the moment when the first operation is performed.

4. The method according to claim 2 or 3, characterized in that: Excluding the first cell in the cell selection process by the terminal includes performing at least one of the following in the cell selection process: not considering the first cell as a suitable cell; considering the first cell as a prohibited cell; not measuring the first cell; The first cell is not selected.

5. The method according to any one of claims 1 to 4, characterized in that: In a case where the terminal fails to acquire the handover auxiliary information, the terminal performing a first operation includes: In the case where the terminal fails to obtain the handover auxiliary information, the terminal considers that a radio link fails RLF; Based on the RLF, the terminal performs the first operation.

6. The method according to claim 1, characterized in that When the terminal fails to acquire the handover auxiliary information, the terminal performs a first operation including: In a case where the terminal fails to acquire the handover auxiliary information and a first condition related to quality of service (QoS) is met, the terminal performs a first operation.

7. The method according to claim 6, characterized in that The first condition includes at least one of the following: The interval between the current time and the time when the serving cell stops serving is less than or equal to the first preset duration; The current time reaches or exceeds the second time indicated by the network side device; The signal strength of the serving cell measured by the terminal is less than or equal to the first threshold; The signal quality of the serving cell measured by the terminal is less than or equal to the second threshold; The distance between the terminal's position and the reference position of the serving cell is greater than or equal to a third threshold; The signal strength of at least one neighboring cell is greater than or equal to a fourth threshold; The signal quality of at least one neighboring cell is greater than or equal to a fifth threshold; The distance between the position of the terminal and the reference position of at least one neighboring cell is less than or equal to a sixth threshold; The signal strength of at least one neighboring cell is greater than the signal strength of the serving cell, and the difference between the signal strength of the at least one neighboring cell and the signal strength of the serving cell is greater than a first offset value; The signal quality of at least one neighboring cell is greater than the signal quality of the serving cell, and the difference between the signal quality of the at least one neighboring cell and the signal quality of the serving cell is greater than the second offset value.

8. The method according to any one of claims 1 to 7, characterized in that: The terminal fails to obtain the handover auxiliary information, including at least one of the following: The first system information is not obtained within N system information windows; The first system information is not obtained within the first time window; Until a third moment, the terminal does not obtain the first system information, and the third moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to the second preset duration; Until a fourth moment, the terminal does not acquire the first system information, the fourth moment is before the time when the serving cell stops serving, and the time interval between the fourth moment and the time when the serving cell stops serving is less than or equal to a third preset duration; Until a fifth moment, the terminal does not obtain the first system information, where the fifth moment is a time configured by the network side device; The first system information carries the switching auxiliary information, and the system information window is a system information window corresponding to a system information message SImessage including the first system information.

9. The method according to any one of claims 1 to 8, characterized in that: The terminal performs acquisition of handover auxiliary information, including: The terminal receives a system message SIB1 from a network side device, where the SIB1 includes scheduling information of the first system information; The terminal acquires the first system information based on the scheduling information, where the first system information carries the handover auxiliary information.

10. The method according to claim 9, characterized in that Before the terminal acquires the first system information based on the scheduling information, the method further includes: The terminal acquires time information, where the time information is used to indicate at least one of the following: The network side device sends the first system information within N system information windows; The terminal needs to obtain the first system information within N system information windows; The system information window is a system information window corresponding to a system information message SI message including the first system information, and N is a positive integer.

11. The method according to claim 9 or 10, characterized in that: Before the terminal acquires the first system information based on the scheduling information, the method further includes: The terminal obtains a first time window, where the first time window is used to indicate at least one of the following: The network side device sends the first system information within a first time window; The terminal needs to obtain the first system information within a first time window.

12. The method according to claim 11, characterized in that The first time window is determined based on any one of the following: sixth moment and first duration; A sixth moment and a seventh moment, wherein the seventh moment is the end moment of the first time window; the running time of the first timer, the start time of the first timer being the sixth time; The sixth moment is the starting moment of the first time window.

13. The method according to claim 12, characterized in that In the case where the first time window is determined based on the running time of the first timer, the method further includes: During the running of the first timer, if the terminal acquires the first system information, the terminal stops the first timer.

14. The method according to claim 12, characterized in that The sixth moment satisfies any of the following: The sixth moment is configured by the network side device; The terminal considers that the moment when the scheduling information of the first system information appears for the first time in SIB1 is the sixth moment.

15. The method according to claim 12, characterized in that The seventh moment satisfies any of the following: The seventh moment is configured by the network side device; The terminal considers that the time when the scheduling information of the first system information appears for the last time in SIB1 is the seventh time; The terminal determines the seventh moment based on the time when the serving cell stops serving.

16. The method according to claim 15, characterized in that The terminal determines the seventh time based on the time when the serving cell stops serving, including any one of the following: The terminal considers that the time indicated by the first offset value before the time when the serving cell stops serving is the seventh time; The terminal considers that the time when the serving cell stops serving is the seventh time.

17. The method according to any one of claims 1 to 7, characterized in that: The terminal fails to obtain the handover auxiliary information including at least one of the following: The first group of identifiers cannot be heard within the second time window; The first group of identifiers cannot be monitored at the resource location of the first group of identifiers; Until an eighth moment, the terminal does not monitor the first group identifier, and the eighth moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to a fourth preset duration; Until a ninth moment, the terminal does not monitor the first group identifier, the ninth moment is before the time when the serving cell stops serving, and the time interval between the ninth moment and the time when the serving cell stops serving is less than or equal to a fifth preset duration; Until the tenth moment, the terminal does not monitor the first group identifier, and the tenth moment is the time configured by the network side device; The first group identifier is used to indicate scheduling the terminal to receive the switching auxiliary information, and the second time window is a time window for monitoring the first group identifier.

18. The method according to any one of claims 1 to 7 and 17, characterized in that The terminal receiving the handover auxiliary information includes: The terminal obtains the handover auxiliary information by monitoring the first group identifier, where the first group identifier is used to indicate scheduling the terminal to receive the handover auxiliary information.

19. The method according to claim 18, characterized in that Before the terminal acquires the handover auxiliary information by monitoring the first group identifier, the method further includes: The terminal obtains a second time window, where the second time window is used to indicate at least one of the following: The network side device sends the first group identifier within a second time window; The terminal monitors the first group of identifiers within the second time window.

20. The method according to claim 19, characterized in that The second time window is determined based on any one of the following: the eleventh moment and the second duration; An eleventh moment and a twelfth moment, the twelfth moment being the end moment of the second time window; the running time of the second timer, the start time of the second timer being the eleventh time; The eleventh moment is the starting moment of the second time window.

21. The method according to any one of claims 18 to 20, characterized in that Before the terminal acquires the handover auxiliary information by monitoring the first group identifier, the method further includes: The terminal obtains a target resource location, where the target resource location is a resource location used to monitor the first group identifier.

22. A cell switching processing device, characterized in that: A first execution module, configured to execute acquisition of handover auxiliary information, wherein the handover auxiliary information includes a common handover configuration, and the handover auxiliary information is used to assist a terminal in handing over from a serving cell to a target cell; A second execution module, configured to execute a first operation when the terminal fails to obtain the handover auxiliary information; The first operation includes: performing radio resource control RRC connection reconstruction or entering RRC idle state.

23. The device according to claim 22, characterized in that When the terminal fails to acquire the handover auxiliary information, the terminal performs a first operation including: In a case where the terminal fails to acquire the switching auxiliary information and a first condition related to quality of service (QoS) is met, the terminal performs a first operation.

24. The device according to claim 23, characterized in that The first condition includes at least one of the following: The interval between the current time and the time when the serving cell stops serving is less than or equal to the first preset duration; The current time reaches or exceeds the second time indicated by the network side device; The signal strength of the serving cell measured by the terminal is less than or equal to the first threshold; The signal quality of the serving cell measured by the terminal is less than or equal to the second threshold; The distance between the terminal's position and the reference position of the serving cell is greater than or equal to a third threshold; The signal strength of at least one neighboring cell is greater than or equal to a fourth threshold; The signal quality of at least one neighboring cell is greater than or equal to a fifth threshold; The distance between the position of the terminal and the reference position of at least one neighboring cell is less than or equal to a sixth threshold; The signal strength of at least one neighboring cell is greater than the signal strength of the serving cell, and the difference between the signal strength of the at least one neighboring cell and the signal strength of the serving cell is greater than a first offset value; The signal quality of at least one neighboring cell is greater than the signal quality of the serving cell, and the difference between the signal quality of the at least one neighboring cell and the signal quality of the serving cell is greater than the second offset value.

25. The device according to any one of claims 22 to 24, characterized in that The terminal fails to obtain the handover auxiliary information, including at least one of the following: The first system information is not obtained within N system information windows; The first system information is not obtained within the first time window; Until a third moment, the terminal does not obtain the first system information, and the third moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to the second preset duration; Until a fourth moment, the terminal does not acquire the first system information, the fourth moment is before the time when the serving cell stops serving, and the time interval between the fourth moment and the time when the serving cell stops serving is less than or equal to a third preset duration; Until a fifth moment, the terminal does not obtain the first system information, where the fifth moment is a time configured by the network side device; The first system information carries the switching auxiliary information, and the system information window is a system information window corresponding to a system information message SImessage including the first system information.

26. The device according to any one of claims 22 to 24, characterized in that The terminal fails to obtain the handover auxiliary information including at least one of the following: The first group of identifiers cannot be heard within the second time window; The first group of identifiers cannot be monitored at the resource location of the first group of identifiers; Until an eighth moment, the terminal does not monitor the first group identifier, and the eighth moment is a moment when the time interval between the time when the serving cell stops serving is less than or equal to a fourth preset time length; Until a ninth moment, the terminal does not monitor the first group identifier, the ninth moment is before the time when the serving cell stops serving, and the time interval between the ninth moment and the time when the serving cell stops serving is less than or equal to a fifth preset duration; Until the tenth moment, the terminal does not monitor the first group identifier, and the tenth moment is the time configured by the network side device; The first group identifier is used to indicate scheduling the terminal to receive the switching auxiliary information, and the second time window is a time window for monitoring the first group identifier.

27. A terminal, characterized in that: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the cell switching processing method as described in any one of claims 1 to 21 are implemented.

28. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the cell switching processing method according to any one of claims 1 to 21 are implemented.

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