CN117500007A

CN117500007A - Cell switching method, device, electronic equipment and readable storage medium

Info

Publication number: CN117500007A
Application number: CN202311362135.8A
Authority: CN
Inventors: 罗罡; 刘旭
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-10-19
Filing date: 2023-10-19
Publication date: 2024-02-02

Abstract

The application discloses a cell switching method, a cell switching device, electronic equipment and a readable storage medium, and belongs to the technical field of communication. The method comprises the following steps: under the condition that the terminal is switched from a first cell to a second cell, the terminal acquires the first signal quality of the second cell; the terminal determines whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell; under the condition that the second cell is an abnormal cell, the terminal executes a first operation; wherein the first operation includes at least one of: disabling the second cell and performing cell reselection; and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold.

Description

Cell switching method, device, electronic equipment and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a cell switching method, a cell switching device, electronic equipment and a readable storage medium.

Background

Currently, when a terminal moves from one cell to another, a base station controls the terminal to perform cell switching in order to maintain uninterrupted communication.

In the related art, a terminal generally performs cell selection according to the reference signal received power SSB-RSRP of a synchronization signal block of a cell, and can switch to a target cell after the SSB-RSRP of the target cell satisfies a switching condition. However, due to network configuration (e.g., unreasonable setting of handover parameters) and the like, the terminal may be handed over to a cell with poor signal index, and when the terminal is handed over to a cell with such poor signal index for service, sudden degradation of the signal is likely to occur, thereby causing service failure.

Disclosure of Invention

An object of the embodiments of the present application is to provide a cell handover method, a cell handover device, an electronic device, and a readable storage medium, which can improve a success rate of a terminal executing a service.

In a first aspect, an embodiment of the present application provides a cell handover method, where the method includes: under the condition that the terminal is switched from a first cell to a second cell, the terminal acquires the first signal quality of the second cell; the terminal determines whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell; under the condition that the second cell is an abnormal cell, the terminal executes a first operation; wherein the first operation includes at least one of: disabling the second cell and performing cell reselection; and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold.

In a second aspect, an embodiment of the present application provides a cell handover apparatus, including: the device comprises an acquisition module and a determination module, wherein: the acquiring module is configured to acquire a first signal quality of a second cell when the terminal is handed over from the first cell to the second cell; the determining module is configured to determine whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell; the acquiring module is further configured to execute a first operation when the second cell is an abnormal cell; wherein the first operation includes at least one of: disabling the second cell and performing cell reselection; and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold.

In a third aspect, embodiments of the present application provide an electronic device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.

In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.

In a sixth aspect, embodiments of the present application provide a computer program product stored in a storage medium, the program product being executable by at least one processor to implement the method according to the first aspect.

In this embodiment of the present application, in a case where a terminal is handed over from a first cell to a second cell, the terminal obtains a first signal quality of the second cell, determines, according to the first signal quality of the second cell and a second signal quality of the first cell, whether the second cell is an abnormal cell, and performs a first operation in a case where the second cell is an abnormal cell, where the first operation includes at least one of: disabling the second cell and performing cell reselection; and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold. The method can acquire the signal quality of the switched second cell, determine whether to switch to the bad cell according to the signal quality of the second cell and the signal quality of the first cell resided in before the switch, and disable the second cell and execute cell reselection under the condition of switching to the bad cell or determine whether to add the cell information of the second cell to an abnormal cell list with low access priority, thus avoiding the situation that the terminal is switched to the bad cell with poor signal quality, the terminal resides in the cell for a long time or the terminal is prevented from being accessed to the bad cell again for service, thereby improving the success rate of executing service by the terminal.

Drawings

Fig. 1 is a flow chart of a cell handover method according to an embodiment of the present application;

fig. 2 is another flow chart of a cell handover method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a cell switching device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 5 is a schematic hardware structure of an electronic device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the objects identified by "first," "second," etc. are generally of a type and do not limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The terms "at least one," "at least one," and the like in the description and in the claims of the present application mean that they encompass any one, any two, or a combination of two or more of the objects. For example, at least one of a, b, c (item) may represent: "a", "b", "c", "a and b", "a and c", "b and c" and "a, b and c", wherein a, b, c may be single or plural. Similarly, the term "at least two" means two or more, and the meaning of the expression is similar to the term "at least one".

NR (New Radio) is a current 5G technology, and 5G SA (stand alone networking) is a current mainstream 5G network architecture, so that a user can use higher-speed traffic and better-quality services under an SA network.

In the 5G standard, the "very simple design" is the core concept, and a "Always On" (Always On) signal occupying fixed resources like CRS (Cell Reference Signal ) of LTE is naturally abandoned. Compared with the CRS, the CSI-RS (Channel State Information-Reference Signal) is more flexible, and a large amount of time-frequency resources can be saved.

A Synchronization signal Block, i.e., SS Block, abbreviated as SSB, i.e., synchronization/PBCH Block, is added to the 5G NR, and the SSB can perform reference signal received power (Reference Signal Receiving Power, RSRP) measurement. SSBs are more flexible and are more widely used in NR mobility scenarios than CSI-RS. Typically, NR uses SSB and CSI-RS for connection state mobility measurements. The SSB is periodically transmitted and the period is configurable, however, the UE does not need to measure the cell signal periodically as the SSB, and can configure the appropriate measurement periodicity according to the channel conditions. This helps to avoid unnecessary measurements and reduces the power consumption of the terminal.

The TRS (Tracking Reference Signal ) is also a CSI-RS, when the terminal receives downlink data transmission, the terminal needs to continuously track and compensate time offset and frequency offset, the TRS is mainly used for providing the functions of tracking and compensating the time offset and the frequency offset, and the terminal tracks the time/frequency offset by measuring the CSI-RS.

The cell switching method provided by the embodiment of the invention can be applied to the scene that the terminal executes communication services such as call services or data services.

Currently, when a terminal moves from one cell to another cell during the process of executing a call service, in order to keep the call service uninterrupted, a base station controls the terminal to execute cell switching.

In the related art, a terminal performs cell selection according to the reference signal received power SSB-RSRP of a synchronization signal block of a cell, and after the SSB-RSRP of a target cell satisfies a handover condition, the terminal switches to the target cell to continue to execute a call service. However, in the case of unreasonable handover parameter setting, the target cell to which the terminal is handed over is a cell with poor signal quality, and when the terminal is handed over to the target cell with poor signal quality to perform the call service, sudden degradation of the signal is likely to occur, thereby causing failure of the call service.

According to the cell switching method provided by the embodiment of the application, after the SSB-RSRP of the target cell meets the switching condition, the terminal can execute cell signal quality measurement on the target cell under the condition that the terminal is switched to the target cell to continue executing the call service, judge whether to switch to an abnormal cell according to the signal quality of the target cell and the signal quality of the first cell where the terminal resides before switching, disable the target cell under the condition that the switching to the abnormal cell is judged, execute cell reselection to switch to a neighboring cell with better signal quality, or add the cell information of the target cell to an abnormal cell list so as to avoid subsequent re-access to the target cell. Therefore, the situation that the terminal resides in the cell for a long time or is subsequently accessed into the target cell again under the condition that the signal quality of the target cell is poor is avoided, and the success rate of executing the call service by the terminal is improved.

The execution body of the cell switching method provided by the embodiment of the invention can be electronic equipment, or at least one of a functional module and an entity module which can realize the cell switching method in the electronic equipment, and the execution body can be specifically determined according to actual use requirements, and the embodiment of the invention is not limited. The following describes a cell handover method provided in the embodiment of the present application, taking a terminal executing the cell handover method as an example.

Fig. 1 is a flowchart of a method of a cell handover method according to an embodiment of the present application, as shown in fig. 1, the cell handover method may include the following steps S201 to S203:

step S201: in case the terminal is handed over from a first cell to a second cell, the terminal obtains a first signal quality of the second cell.

Optionally, in this embodiment of the present application, the first cell is a cell where the terminal resides before switching to the second cell.

Alternatively, in the embodiment of the present application, the second cell may be a cell to which the terminal is handed over after performing cell handover in the first cell.

Alternatively, in the embodiment of the present application, the first cell and the second cell may be a 2G cell, a 3G cell, a 4G cell, a 5G cell, or a 6G cell, which is not limited in the embodiment of the present application.

It should be noted that, the 4G cell may be a long term evolution (Long term Evolution, LTE) cell, and the 5G cell may be a New Radio (NR).

Optionally, in this embodiment of the present application, before the terminal switches from the first cell to the second cell, the terminal performs cell measurement on the first cell, and reports an A2 event to the base station when a signal quality measurement result of the first cell meets a reporting threshold of the A2 event, and after the A2 event is reported, the base station may start inter-frequency or inter-system measurement to control the terminal to perform cell switching.

Further optionally, under the condition of starting measurement of different frequencies or different systems, the network side device performs RRC (Radio Resource Control ) reconfiguration on the terminal, instructs the terminal to perform measurement of the neighbor cell, and after performing measurement of the neighbor cell, the terminal reports related measurement events of the neighbor cell to the network side device, so as to report measurement results of the neighbor cell to the network side device, and under the condition that measurement results of a target neighbor cell meet a switching condition, the terminal switches to the target neighbor cell.

Alternatively, the neighbor cell measurement event may be an A3 event, an A4 event, or an A5 event.

In an exemplary embodiment, the terminal performs measurement reporting on the signal quality of the serving cell in the current serving cell, and the base station performs RRC reconfiguration on the terminal according to the cell measurement result reported by the terminal, instructs the UE to perform neighbor cell measurement, and reports a related neighbor cell measurement event after the UE performs neighbor cell measurement.

It should be noted that, the A2 event indicates that the signal quality of the serving cell of the terminal is lower than a certain threshold; a3, when the event that the quality of the neighbor cell is higher than that of the service cell and the event meeting the condition is reported, the base station starts a switching request; a4, when the event that the neighbor cell quality is higher than a certain threshold and the event meeting the condition is reported, the base station starts a switching request; the A5 event indicates that the serving cell quality is below a certain threshold and the neighbor cell quality is above a certain threshold.

It should be noted that, the specific process of the terminal performing cell handover may refer to the description of the related art, which is not repeated in the embodiments of the present application.

Further alternatively, the terminal may record the signal quality of the first cell, i.e. the second signal quality, after performing the cell measurement on the first cell.

Alternatively, in the embodiment of the present application, after the terminal is handed over to the second cell, a registration procedure may be performed in the second cell to camp on the second cell.

Optionally, in the embodiment of the present application, the terminal performs signal quality measurement on the second cell in a case of camping on the second cell, to obtain the first signal quality.

Optionally, in an embodiment of the present application, the first signal quality may include at least one of RSRP (Reference Signal Received Power ), RSRQ (Reference Signal Received Quality, reference signal received quality) and SINR (Signal to Interference Noise Ratio, signal-to-interference-and-noise ratio).

Illustratively, when the terminal is handed over from the current serving cell to the neighboring cell (denoted as cell 2) of the serving cell, the terminal measures RSRP, RSRQ, and SINR of the cell 2 to obtain the RSRP, RSRQ, and SINR of the cell 2.

Step S202: and the terminal determines whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell.

Alternatively, in the embodiment of the present application, the terminal may acquire the second signal quality of the first cell before performing cell handover.

Optionally, in the embodiment of the present application, the terminal may compare the second signal quality of the first cell with the first signal quality of the second cell, and determine that the second cell is an abnormal cell when the signal quality of the second cell is worse than the signal quality of the first cell.

Taking a first cell as a cell 1 and a second cell as a cell 2 as an example, the terminal measures that the RSRP of the cell 1 is-110 dBm, the RSRP of the cell 2 is-130 dBm, and the RSRP of the cell 2 is worse than the RSRP of the cell 1, so that the cell 2 is determined to be an abnormal cell.

Further exemplary, taking the first cell as the cell 3 and the second cell as the cell 4 as an example, the terminal measures that the SINR of the cell 3 is 16, the SINR of the cell 4 is 10, and if the SINR of the cell 4 is worse than the SINR of the cell 3, the cell 4 is determined to be an abnormal cell.

Step S203: and executing a first operation by the terminal under the condition that the second cell is an abnormal cell.

Wherein the first operation includes at least one of:

disabling the second cell and performing cell reselection;

and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold.

Optionally, in the embodiment of the present application, the access priority of the cell in the abnormal cell list is lower than that of other cells not in the abnormal cell list, when the terminal performs cell access, the terminal preferentially selects the cell with higher access priority, and when the cell with higher access priority does not meet the access condition, the terminal selects the cell with lower access priority to perform cell access, so that the terminal does not access the abnormal cell in the abnormal cell list as much as possible.

Optionally, in the embodiment of the present application, disabling the second cell may be: and adding the cell information of the second cell to a forbidden cell list, wherein the forbidden cell list comprises the cell information of at least one cell forbidden to be accessed by the terminal.

Alternatively, the cell information may include at least one of an identity of a cell and frequency point information.

Optionally, in the embodiment of the present application, after the second cell is disabled, the terminal does not report the signal quality measurement result of the second cell to the network side device, so that the terminal will not be switched to the second cell any more later.

Optionally, in an embodiment of the present application, the access priority may include at least one of a handover priority and an initial access priority. Optionally, the handover priority refers to a priority of a cell when performing cell handover, and the initial access priority refers to a priority of a cell when performing initial access.

Optionally, in the embodiment of the present application, for a cell with an access priority lower than the priority threshold, the terminal may select the cell to perform access or switch to the cell if none of the other cells meets the access condition or the switch condition.

Optionally, in the embodiment of the present application, the terminal may disable the second cell when the second cell is an abnormal cell and the signal quality of the second cell is lower than a preset threshold, initiate cell reselection to a neighboring cell, and reestablish a link in the neighboring cell when reselecting to the neighboring cell.

Taking the first cell as the cell 3 and the second cell as the cell 4 as an example, the terminal measures that the RSRP of the cell 3 is-105 dBm, the RSRP of the cell 4 is-130 dBm, the RSRP of the cell 4 is poorer than the signal quality of the cell 3, and the RSRP of the cell 4 is lower than the preset threshold-120 dBm, the terminal disables the cell 4 and reselects to the neighboring cell of the cell 4 to leave the cell 4 as soon as possible and ensure that the subsequent handover to the cell 4 is not performed.

Optionally, in the embodiment of the present application, the terminal may add the cell information of the second cell to the abnormal cell list when the second cell is an abnormal cell and the signal quality of the second cell is higher than a preset threshold.

Taking the first cell as the cell 1 and the second cell as the cell 2 as an example, the terminal measures that the RSRP of the cell 1 is-105 dBm, the RSRP of the cell 2 is-118 dBm, the RSRP of the cell 2 is poorer than the signal quality of the cell 1, and the terminal adds the identifier of the cell 2 to the abnormal cell list so as to reduce the probability of the subsequent handover to the cell 2.

Optionally, in the embodiment of the present application, if the signal of the second cell is detected to be recovered to be normal within a certain period of time, the terminal cancels the disabling of the second cell or removes the cell information of the second cell from the abnormal cell list.

In the cell switching method provided in the embodiment of the present application, in a case that a terminal is switched from a first cell to a second cell, the terminal acquires the second cell to execute a first signal quality, and determines whether the second cell is an abnormal cell according to the first signal quality of the second cell and a second signal quality of the first cell, and executes a first operation in a case that the second cell is an abnormal cell, where the first operation includes at least one of: disabling the second cell and performing cell reselection; and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold. The method can acquire the signal quality of the switched second cell, determine whether to switch to the bad cell according to the signal quality of the second cell and the signal quality of the first cell resided in before the switch, and disable the second cell and execute cell reselection under the condition of switching to the bad cell or determine whether to add the cell information of the second cell to an abnormal cell list with low access priority, thus avoiding the situation that the terminal is switched to the bad cell with poor signal quality, the terminal resides in the cell for a long time or the terminal is prevented from being accessed to the bad cell again for service, thereby improving the success rate of executing service by the terminal.

Fig. 2 is a flowchart of another method of the cell handover method according to the embodiment of the present application, as shown in fig. 2, the above step S201 may be implemented by the following step S201 a.

Step S201a: in case the terminal is handed over from a first cell to a second cell, the terminal performs a signal quality measurement on a first signal of the second cell, resulting in a first signal quality of the second cell.

Wherein the first signal comprises a synchronization signal block SSB, or the first signal comprises SSB and a tracking reference signal TRS.

Alternatively, in the embodiment of the present application, in a case where the first cell and the second cell are configured with SSB beams and are not configured with TRS beams, the first signal includes SSB; alternatively, in the case where both the first cell and the second cell are configured with SSB beams and TRS beams, the first signal includes SSB and TRS.

It should be noted that whether or not the first signal includes the TRS depends on the configuration of the base station.

It should be noted that, the cell is configured with an SSB beam, which indicates that the SSB of the cell is in an on state, that is, the cell may send the SSB to the terminal; similarly, the cell is configured with a TRS beam, indicating that the TRS of the cell is in an on state, i.e., the cell may transmit the TRS to the terminal.

It should be noted that, the explanation of SSB and TRS can be referred to the above description, and will not be repeated here.

Illustratively, taking the example that the first signal includes an SSB, the terminal performs cell handover from a serving cell (i.e., the first cell), after camping on a neighboring cell (denoted as cell 2), the terminal performs signal quality measurement on the SSB after receiving the SSB from cell 2, to obtain RSRP and SINR of the SSB.

Taking the example that the first signal includes SSB and TRS, the terminal performs cell handover from the serving cell (i.e., the first cell), camps on the neighboring cell (denoted as cell 2), and performs signal quality measurement on the SSB and the TRS after receiving the SSB and the TRS from the cell 2, to obtain RSRP and SINR of the SSB and RSRP and SINR of the TRS.

In this embodiment of the present application, after the terminal is switched from the first cell to the second cell, the SSB acquiring the second cell may be acquired, or, in the case that the second cell starts the TRS, the signal quality of the SSB and the TRS of the second cell may be acquired, so that after the terminal is switched to the new cell, the signal quality of the new cell may be acquired in time, so that whether the terminal is switched to a worse cell is determined according to the difference between the signal quality of the new cell switched to and the signal quality of the original cell before the switching, thereby avoiding the terminal from camping on the bad cell to perform service.

Optionally, in an embodiment of the present application, the first signal quality includes a signal quality of SSB. Illustratively, the above step S202 may be implemented by the following step S202 a.

Step S202a: and under the condition that the signal quality of the SSB of the second cell meets the first preset condition, the terminal determines the second cell as an abnormal cell.

Wherein, the first preset condition includes: the signal quality of the SSB of the second cell is less than the signal quality of the SSB of the first cell, and the difference between the signal quality of the SSB of the second cell and the signal quality of the SSB of the first cell is greater than a first threshold.

Optionally, in an embodiment of the present application, in a case that the base station is configured with an SSB beam, the first signal quality includes a signal quality of the SSB.

Alternatively, in the embodiment of the present application, the base station may send, to the terminal, indication information, where the indication information is used to indicate that the second cell is configured with an SSB beam; alternatively, the terminal may determine whether the second cell is configured with the SSB beam after performing signal measurement on a signal from the second cell.

Alternatively, in the embodiment of the present application, the first threshold may be a preset threshold. For example, the first threshold may be 5, 10, or 15, which may be set according to actual requirements, which is not limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, in a case where signal quality measurement is performed on the second cell to obtain signal quality of the second cell, the terminal may acquire signal quality of the first cell recorded in advance, and determine whether the signal quality of the second cell meets the first preset condition according to the signal quality of the second cell and the signal quality of the first cell.

Illustratively, after a terminal is handed over from a serving cell (denoted as cell 1) to a neighbor cell (denoted as cell 2), it is assumed that the RSRP of the SSB signal of cell 2 is RSRP _cell2 The RSRP of the SSB signal of cell 1 is RSRP _cell1 If RSRP _cell2 Less than RSRP _cell1 And RSRP _cell2 And RSRP _cell1 If the difference is greater than the threshold value Tr, the cell 2 is judged to be an abnormal cell.

Still further exemplary, after the terminal is handed over from the serving cell (denoted as cell 1) to the neighbor cell (denoted as cell 2), it is assumed that the SINR of the SSB signal of cell 2 is SINR _cell2 SINR of SSB signal of cell 1 is SINR _cell1 If SINR _cell2 Less than SINR _cell1 And SINR _cell2 And SINR _cell1 And if the difference value is larger than the threshold value Ts, judging the cell 2 as an abnormal cell.

Also illustratively, after a terminal is handed over from a serving cell (denoted as cell 1) to a neighbor cell (denoted as cell 2), it is assumed that the RSRP of the SSB signal of cell 2 is RSRP _cell2 SINR of SSB signal of cell 2 is SINR _cell2 The RSRP of the SSB signal of cell 1 is RSRP _cell1 SINR of SSB signal of cell 1 is SINR _cell1 If RSRP _cell2 Less than RSRP _cell1 And RSRP _cell2 And RSRP _cell1 The difference between is greater than a threshold Tr, SINR _cell2 Less than SINR _cell1 And SINR _cell2 And SINR _cell1 And if the difference value is larger than the threshold value Ts, judging the cell 2 as an abnormal cell.

The RSRP of the SSB (referred to as SSB-RSRP) corresponds to the signal reception power at the time of cell selection, and a situation in which the signal drops greatly after performing cell handover may occur due to network configuration. The dropping of the signal mainly refers to the dropping of the signal RSRP or SINR before and after the cell switching, and since the terminal is switched according to the network instruction, under the condition that the network configuration parameters are unreasonable, there is a case that the signal becomes worse after the terminal is switched, that is, the terminal may be switched to the cell with poorer signal quality.

In the embodiment of the present application, after the terminal performs cell switching, the terminal may determine whether the switched cell is an abnormal cell according to the signal quality of the SSB of the cell before and after the switching, so that cell reselection can be performed or the abnormal cell is added to the abnormal cell list under the condition that the terminal is switched to the abnormal cell, and further service failure caused by long-time residence of the terminal to the abnormal cell is avoided.

Optionally, in an embodiment of the present application, in a case where the second cell is configured with an SSB beam and a TRS beam, the first signal quality includes a signal quality of the SSB, or the first signal quality includes at least one of a signal quality of the SSB and a signal quality of the TRS. Illustratively, the step S202 may include the following step S202b or step S202c.

Step S202b: and under the condition that the signal quality of the SSB of the second cell meets the first preset condition, the terminal determines the second cell as an abnormal cell.

Step S202c: and under the condition that the signal quality measurement result of the SSB of the second cell does not meet the first preset condition, the terminal determines whether the second cell is an abnormal cell according to the signal quality of the TRS of the second cell.

Optionally, in the embodiment of the present application, if the signal quality measurement result of the SSB meets the first preset condition under the condition that the SSB and the TRS are turned on by the second cell, determining that the second cell is an abnormal cell; or if the signal quality measurement result of the SSB does not meet the first preset condition, further combining the signal measurement value of the TRS of the first cell and the signal quality of the TRS of the second cell to determine whether the second cell is an abnormal cell.

Further exemplary, after the terminal is handed over from the serving cell (denoted as cell 3) to the neighbor cell (denoted as cell 4), it is assumed that the RSRP of the SSB signal of cell 4 is ssb_rsrp _cell4 The RSRP of the SSB signal of cell 3 is ssb_rsrp _cell3 If SSB_RSRP _cell4 Greater than SSB_RSRP _cell3 That is, the RSRP of the cell to which the handover is made is in the normal range, at which time the terminal can further compare the signal quality measurement result of the TRS of the cell 4 with the signal quality measurement result of the TRS signal of the cell 3, assuming that the RSRP of the TRS of the cell 4 is trs_rsrp _cell4 The RSRP of the TRS of cell 3 is trs_rsrp _cell3 ，TRS_RSRP _cell4 Less than TRS_RSRP _cell3 The TRS signal quality corresponding to the service characterizing the cell 4 is poor, and the terminal can determine the cell 4 as an abnormal cell.

It should be noted that, when the SSB-RSRP is used for cell selection and the terminal performs service, the TRS-RSRP is used as a criterion, but after the terminal performs cell switching due to reasons such as network configuration, the terminal may switch to a cell where the SSB-RSRP is in a normal range, but the TRS-RSRP is poor, which results in service failure on the cell to which the terminal is switched.

In this embodiment, after the terminal switches to the second cell, the terminal may determine whether the signal quality of the SSB of the second cell is worse than the signal quality of the SSB of the first cell before switching, if the signal quality of the SSB of the second cell is worse, determine that the second cell is an abnormal cell, and execute the first operation to avoid long-term residence in the second cell, if the signal quality of the SSB of the second cell is better than the signal quality of the SSB of the first cell, further determine whether the second cell is an abnormal cell according to the TRS-RSRP of the second cell, thereby being capable of accurately identifying the abnormal cell.

Alternatively, in the embodiment of the present application, the process of determining, by the terminal in the above step S202c, whether the second cell is an abnormal cell according to the signal quality of the TRS of the second cell may include the following step S202c1:

step S202c1: if the signal quality of the TRS of the second cell meets the second preset condition, the terminal determines that the second cell is an abnormal cell.

Wherein the second preset condition includes: the signal quality of the TRS of the second cell is less than the signal quality of the TRS of the first cell, and a difference between the signal quality of the TRS of the second cell and the signal quality of the TRS of the first cell is greater than a second threshold.

Optionally, in this embodiment of the present application, the terminal may determine, when the signal quality of the SSB of the second cell does not meet the first preset condition, whether the signal quality of the TRS of the second cell meets the second preset condition, if so, determine that the second cell is an abnormal cell, and if not, determine that the second cell is not an abnormal cell.

Illustratively, after a terminal is handed over from a serving cell (denoted as cell 3) to a neighboring cell (denoted as cell 4), it is assumed that the RSRP of the SSB signal of cell 4 is ssb_rsrp _cell4 The RSRP of the SSB signal of cell 3 is ssb_rsrp _cell3 If SSB RSRP _cell4 Greater than SSB_RSRP _cell3 That is, the RSRP of the cell to which the handover is made is in the normal range, at which time the terminal can determine whether the difference between the signal quality measurement result of the TRS of the cell 4 and the signal quality measurement result of the cell 3 is greater than the threshold, assuming that the RSRP of the TRS of the cell 4 is trs_rsrp _cell4 The RSRP of the TRS of cell 3 is trs_rsrp _cell3 ，TRS_RSRP _cell4 Less than TRS_RSRP _cell3 And TRS_RSRP _cell4 And TRS_RSRP _cell3 The difference between them is greater than a threshold value Ts, representing a small valueThe TRS signal quality corresponding to the service of the cell 4 is poor, and the terminal determines the cell 4 as an abnormal cell.

As another example, after the terminal is handed over from the serving cell (denoted as cell 5) to the neighbor cell (denoted as cell 6), the terminal may determine that the cell 6 is not an abnormal cell, assuming that the RSRP of the SSB signal of the cell 6 is larger than the RSRP of the SSB signal of the cell 6, that is, the RSRP of the handed over cell is in the normal range, and assuming that the RSRP of the TRS of the cell 6 is also larger than the RSRP of the TRS of the cell 5, and that the signal quality of both the SSB and the TRS of the cell 6 is good.

In this embodiment, after the terminal switches to the second cell, the terminal may determine whether the signal quality of the SSB of the second cell is worse than the signal quality of the SSB of the first cell before switching, if the signal quality of the SSB of the second cell is worse, determine that the second cell is an abnormal cell, and perform the first operation to avoid long-term camping in the second cell, if the signal quality of the SSB of the second cell is better than the signal quality of the SSB of the first cell, determine whether the signal quality of the TRS of the second cell is worse than the signal quality of the TRS of the first cell, and determine whether the second cell is an abnormal cell if the signal quality of the TRS of the second cell is worse than the signal quality of the TRS of the first cell, thereby being able to accurately identify the abnormal cell if the signal quality of the SSB of the second cell is better but the signal quality of the TRS is worse.

Alternatively, in the embodiment of the present application, the above step S202c1 may be implemented by the following step S202c 2.

Step S202c2: if the signal quality of the TRS of the second cell meets a second preset condition and the block error rate BLER of the second cell is greater than a third threshold, the terminal determines that the second cell is an abnormal cell.

Optionally, in the embodiment of the present application, after receiving the downlink data from the second cell, the terminal may calculate the block error rate of the downlink data according to the number of errors of the received downlink data and the total number of received downlink data.

It should be noted that, the Block Error Rate (BLER) refers to an average Error Rate of a transport Block after being checked by a CRC (Cyclic Redundancy Check, cyclic redundancy check code), and the value is a long-term same average quantity, which can reflect the service quality of network performance, and the larger the BLER value, the worse the network performance of the cell is represented, the smaller the BLER value, and the better the network performance of the cell is represented. The quality of BLER directly affects the quality of voice and image of the service and the perception of throughput and delay of the service by the user.

Alternatively, in the embodiment of the present application, the third threshold may be a preset threshold.

Illustratively, the third threshold may be 0.03, 0.05, or 0.07 for the downlink control channel, and 0.3, 0.5, and 0.7 for the downlink data channel.

It should be noted that, the threshold values in the embodiments of the present application are only some possible examples, and may be specifically set according to practical situations, and do not constitute any limitation of the present application.

Optionally, in the embodiment of the present application, if the signal quality of the TRS of the second cell meets a second preset condition and the BLER value of the second cell is less than or equal to a third threshold, it is determined that the second cell is not an abnormal cell.

For example, in combination with the above embodiment, in a case where the signal quality of the SSB of the second cell does not satisfy the first preset condition, that is, in a case where the signal quality of the SSB of the second cell is better than the signal quality of the SSB of the first cell, the terminal may acquire the signal quality of the TRS of the second cell and the block error rate of the downlink data transmission, and determine whether the second cell is an abnormal cell according to the signal quality of the TRS and the block error rate of the second cell. Further, the terminal may determine that the second cell is an abnormal cell when the signal quality of the TRS satisfies a second preset condition and the block error rate is greater than a third threshold, or determine that the second cell is not an abnormal cell when the signal quality of the TRS satisfies the second preset condition and the block error rate is less than or equal to the third threshold.

It should be noted that, the signal quality of the TRS of the cell satisfies the second preset condition, which indicates that the signal quality of the TRS of the cell is poor, which indicates that the cell is more likely to be an abnormal cell, in which case, the terminal further determines the block error rate of the cell, and if the block error rate of the cell is greater, which indicates that the cell is poor in network performance service quality, the cell can be considered as an abnormal cell, so that by combining with the BLER, whether the cell is an abnormal cell can be determined more accurately.

For example, after the terminal is handed over from the serving cell (denoted as cell 3) to the neighboring cell (denoted as cell 4), assuming that the RSRP of the SSB signal of cell4 is ssb_rsrpcell4, the RSRP of the SSB signal of cell3 is ssb_rsrpcell3, if the SSB RSRPcell4 is greater than ssb_rsrpcell3, that is, the RSRP of the handed over cell is in a normal range, at this time, the terminal may determine the signal quality measurement result of the TRS of cell4 and the BLER value of the downlink transmission of the cell4, and if the RSRP of the TRS of cell4 is less than the RSRP of the TRS of cell3, and the RSRP of the TRS of cell4 is greater than the RSRP of the TRS of cell3, the terminal may further determine the BLER value of the cell4 as an abnormal cell, if the BLER value of the cell4 is greater than the threshold, and the performance of the cell is determined as an abnormal cell.

In this embodiment of the present application, when the signal quality of the SSB of the cell is in the normal range, the terminal may further determine whether the cell is an abnormal cell by combining the signal quality and the BLER of the TRS of the cell, and determine the cell as an abnormal cell when the signal quality of the TRS of the cell is poor and the BLER is poor, so that the communication performance of the cell can be determined more accurately.

The following embodiments exemplify the cell handover method of the present application by way of three examples.

Example one,

Step 11: the terminal camps on network 5G cell 1.

Alternatively, cell 1 turns on the SSB signal.

Step 12: network configurations A1 and A2 measure events.

Step 13: the terminal reports the A2 event and records the SSB signal of cell 1.

Step 14: and the terminal performs neighbor cell measurement and reports related A3/A4/A5 events of the neighbor cells.

Step 15: the network switches the terminal to cell 2, and the terminal successfully resides.

Step 16: and the terminal judges that the SSB of the cell 2 meets the preset condition, and judges that the cell 2 is an abnormal cell.

Optionally, step 16 may be followed by step 17a or step 17b:

step 17a: the terminal disables cell 2 and reestablishes the link in the other cells.

Step 17b: the terminal adds this cell 2 to the list of abnormal cells.

It should be noted that, the explanation of this embodiment may refer to the above description, and will not be repeated here.

Example two,

Step 21: the terminal camps on network 5G cell 1.

Alternatively, cell 1 turns on SSB and TRS signals.

Step 22: network configurations A1 and A2 measure events.

Step 23: the terminal reports the A2 event and records the SSB signal of cell 1.

Step 24: and the terminal performs neighbor cell measurement and reports related A3/A4/A5 events of the neighbor cells.

Step 25: the network switches the terminal to cell 2, and the terminal successfully resides.

Step 26: the terminal judges that the TRS of the cell 2 satisfies a preset condition, and judges that the cell 2 is an abnormal cell.

Optionally, step 26 may be followed by step 27a or step 27b:

step 27a: the terminal disables cell 2 and reestablishes the link in the other cells.

Step 27b: the terminal adds this cell 2 to the list of abnormal cells.

Example III,

Step 31: the terminal camps on network 5G cell 1.

Alternatively, cell 1 turns on SSB and TRS signals.

Step 32: network configurations A1 and A2 measure events.

Step 33: the terminal reports the A2 event and records the SSB signal of cell 1.

Step 34: and the terminal performs neighbor cell measurement and reports related A3/A4/A5 events of the neighbor cells.

Step 35: the network switches the terminal to cell 2, and the terminal successfully resides.

Step 36: and the terminal judges that the TRS of the cell 2 meets the preset condition, and judges that the cell 2 is an abnormal cell by combining with the BLER value.

Optionally, the step 36 may include a step 37a or a step 37b after the above step 36:

step 37a: the terminal disables cell 2 and reestablishes the link in the other cells.

Step 37b: the terminal adds this cell 2 to the list of abnormal cells.

The method for avoiding the terminal in the abnormal base station signal drop scene can effectively switch the cell process by identifying the signal abnormal drop scene, avoids the terminal from being always in an abnormal cell, and is beneficial to quickly recovering normal business. Specifically, for the scene of abnormal drop of the SSB RSRP/SINR, a method of shielding cells or adding an abnormal cell list can be selected, so that the situation that the abnormal cells reside for service is effectively avoided; aiming at the scene that the SSB and the TRS signals are inconsistent, after the TRS RSRP/SINR is identified to fall abnormally, a method for shielding cells or adding an abnormal cell list can be adopted; and the abnormal cell can be further identified by combining the BLER value at the terminal side, so that the accuracy of identifying the abnormal cell can be improved.

The foregoing method embodiments, or various possible implementation manners in the method embodiments, may be executed separately, or may be executed in combination with each other on the premise that no contradiction exists, and may be specifically determined according to actual use requirements, which is not limited by the embodiments of the present application.

In the cell switching method provided in the embodiment of the present application, the execution body may be a cell switching device. In the embodiment of the present application, a cell switching method is taken as an example to execute cell switching, and a cell switching device provided in the embodiment of the present application is described.

Fig. 3 is a schematic diagram of a cell switching apparatus provided in an embodiment of the present application, and as shown in fig. 3, the cell switching apparatus may include: an acquisition module 301, a determination module 302, and an execution module 303, wherein: the acquiring module 301 is configured to acquire, in a case where a terminal is handed over from a first cell to a second cell, a first signal quality of the second cell; the determining module 302 is configured to determine whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell; the executing module 303 is configured to execute a first operation when the second cell is an abnormal cell; wherein the first operation includes at least one of:

Disabling the second cell and performing cell reselection;

and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the priority lower than a priority threshold.

Optionally, in an embodiment of the present application, the acquiring module is specifically configured to perform signal quality measurement on a first signal of a second cell when a terminal is handed over from the first cell to the second cell, so as to obtain a first signal quality of the second cell;

wherein the first signal includes a synchronization signal block SSB, or the first signal includes SSB and a tracking reference signal TRS.

Optionally, in an embodiment of the present application, the signal quality measurement result includes a signal quality of the SSB;

the determining module is specifically configured to determine that the second cell is an abnormal cell when the signal quality of the SSB of the second cell meets a first preset condition;

wherein, the first preset condition includes: the signal quality of the SSB of the second cell is smaller than the signal quality of the SSB of the first cell, and a difference between the signal quality of the SSB of the second cell and the signal quality of the SSB of the first cell is greater than a first threshold.

Optionally, in an embodiment of the present application, in a case where the second cell is configured with an SSB beam and a TRS beam, the first signal quality includes a signal quality of the SSB, or the first signal quality includes a signal quality of the SSB and a signal quality of the TRS;

or, the determining module is specifically configured to determine, when the signal quality of the SSB of the second cell does not meet the first preset condition, whether the second cell is an abnormal cell according to the signal quality of the TRS of the second cell;

Optionally, in this embodiment of the present application, the determining module is specifically configured to determine that the second cell is an abnormal cell if the signal quality of the TRS of the second cell meets a second preset condition;

Wherein the second preset condition includes: the signal quality of the TRS of the second cell is smaller than the signal quality of the TRS of the first cell, and a difference between the signal quality of the TRS of the second cell and the signal quality of the TRS of the first cell is greater than a second threshold.

Optionally, in this embodiment of the present application, the determining module is specifically configured to determine that the second cell is an abnormal cell if the signal quality of the TRS of the second cell meets the second preset condition and the block error rate BLER of the second cell is greater than a third threshold.

In the cell switching device provided in the embodiment of the present application, in a case where a terminal is switched from a first cell to a second cell, the cell switching device obtains a first signal quality of the second cell, determines whether the second cell is an abnormal cell according to the first signal quality of the second cell and a second signal quality of the first cell, and performs a first operation in a case where the second cell is an abnormal cell, where the first operation includes at least one of: disabling the second cell and performing cell reselection; and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold. The method can acquire the signal quality of the switched second cell, determine whether to switch to the bad cell according to the signal quality of the second cell and the signal quality of the first cell resided in before the switch, and disable the second cell and execute cell reselection under the condition of switching to the bad cell or determine whether to add the cell information of the second cell to an abnormal cell list with low access priority, thus avoiding the situation that the terminal is switched to the bad cell with poor signal quality, the terminal resides in the cell for a long time or the terminal is prevented from being accessed to the bad cell again for service, thereby improving the success rate of executing service by the terminal.

The cell switching device in the embodiment of the application may be an electronic device, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the electronic device may be a mobile phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, mobile internet appliance (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/Virtual Reality (VR) device, robot, wearable device, ultra-mobile personal computer, UMPC, netbook or personal digital assistant (personal digital assistant, PDA), etc., but may also be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.

The cell switching device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The cell switching device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 1 or fig. 2, and in order to avoid repetition, a description is omitted here.

Optionally, as shown in fig. 4, the embodiment of the present application further provides an electronic device 400, including a processor 401 and a memory 402, where the memory 402 stores a program or an instruction that can be executed on the processor 401, and the program or the instruction implements each step of the above-mentioned cell handover method embodiment when executed by the processor 401, and the steps achieve the same technical effects, so that repetition is avoided, and no further description is given here.

The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.

Fig. 5 is a schematic hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, and processor 110.

Those skilled in the art will appreciate that the electronic device 100 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 110 via a power management system to perform functions such as managing charging, discharging, and power consumption via the power management system. The electronic device structure shown in fig. 5 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.

Wherein, the processor 110 is configured to obtain, in a case that the terminal is handed over from the first cell to the second cell, a first signal quality of the second cell; the processor 110 is further configured to determine whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell; the processor 110 is further configured to perform a first operation when the second cell is an abnormal cell; wherein the first operation includes at least one of:

disabling the second cell and performing cell reselection;

Optionally, in the embodiment of the present application, the processor 110 is specifically configured to perform signal quality measurement on a first signal of a second cell, where a terminal is handed over from the first cell to the second cell, to obtain a first signal quality of the second cell;

the processor 110 is specifically configured to determine that the second cell is an abnormal cell when the signal measurement node of the SSB of the second cell meets a first preset condition;

Optionally, in the embodiment of the present application, in a case where the second cell is configured with an SSB beam and a TRS beam, the first signal quality includes a signal quality of the SSB, or the signal quality measurement result includes a signal quality of the SSB and a signal quality of the TRS;

the processor 110 is specifically configured to determine that the second cell is an abnormal cell when the signal quality measurement of the SSB of the second cell meets a first preset condition;

or, the processor 110 is specifically configured to determine whether the second cell is an abnormal cell according to the signal quality of the TRS of the second cell when the signal quality of the SSB of the second cell does not meet the first preset condition;

Optionally, in the embodiment of the present application, the processor 110 is specifically configured to determine that the second cell is an abnormal cell if the signal quality of the TRS of the second cell meets a second preset condition;

Optionally, in this embodiment of the present application, the processor 110 is specifically configured to determine that the second cell is an abnormal cell if the signal quality of the TRS of the second cell meets the second preset condition and the block error rate BLER of the second cell is greater than a third threshold.

In the electronic device provided in the embodiment of the present application, in a case where the electronic device is switched from a first cell to a second cell, a cell switching device obtains a first signal quality of the second cell, determines, according to the first signal quality of the second cell and a second signal quality of the first cell, whether the second cell is an abnormal cell, and executes a first operation in a case where the second cell is an abnormal cell, where the first operation includes at least one of: disabling the second cell and performing cell reselection; and adding the cell information of the second cell to an abnormal cell list, wherein the abnormal cell list comprises the cell information of at least one cell with the access priority lower than a priority threshold. The method can acquire the signal quality of the switched second cell, determine whether to switch to the bad cell according to the signal quality of the second cell and the signal quality of the first cell resided in before the switch, and disable the second cell and execute cell reselection under the condition of switching to the bad cell or determine whether to add the cell information of the second cell to an abnormal cell list with low access priority, thus avoiding the situation that the terminal is switched to the bad cell with poor signal quality, the terminal resides in the cell for a long time or the terminal is prevented from being accessed to the bad cell again for service, thereby improving the success rate of executing service by the terminal.

It should be appreciated that in embodiments of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 109 may include volatile memory or nonvolatile memory, or the memory x09 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 109 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the embodiment of the cell handover method are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a program or an instruction, implement each process of the above embodiment of the cell switching method, and achieve the same technical effect, so as to avoid repetition, and not be repeated here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.

The embodiments of the present application provide a computer program product stored in a storage medium, where the program product is executed by at least one processor to implement the respective processes of the above-described embodiment of the cell handover method, and achieve the same technical effects, and are not repeated herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method of cell handover, the method comprising:

under the condition that a terminal is switched from a first cell to a second cell, acquiring first signal quality of the second cell;

the terminal determines whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell;

the terminal executes a first operation under the condition that the second cell is an abnormal cell;

wherein the first operation includes at least one of:

disabling the second cell and performing cell reselection;

2. The method according to claim 1, wherein said obtaining a first signal quality of a second cell in case a terminal is handed over from the first cell to the second cell comprises:

under the condition that a terminal is switched from a first cell to a second cell, the terminal performs signal quality measurement on a first signal of the second cell to obtain the first signal quality of the second cell;

Wherein the first signal comprises a synchronization signal block SSB, or the first signal comprises the SSB and a tracking reference signal TRS.

3. The method of claim 2, wherein the first signal quality comprises a signal quality of SSB;

the terminal determines whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell, and the method comprises the following steps:

under the condition that the signal quality of SSB of the second cell meets a first preset condition, the terminal determines that the second cell is an abnormal cell;

wherein the first preset condition includes: the signal quality of the SSB of the second cell is less than the signal quality of the SSB of the first cell, and the difference between the signal quality of the SSB of the second cell and the signal quality of the SSB of the first cell is greater than a first threshold.

4. The method of claim 2, wherein the first signal quality comprises a signal quality of an SSB or the first signal quality comprises a signal quality of the SSB and a signal quality of the TRS in the case where the second cell is configured with an SSB beam and a TRS beam;

or, in case that the signal quality of the SSB of the second cell does not meet the first preset condition, the terminal determines whether the second cell is an abnormal cell according to the signal quality of the TRS of the second cell;

5. The method of claim 4, wherein the terminal determining whether the second cell is an abnormal cell based on the signal quality of the TRS of the second cell comprises:

if the signal quality of the TRS of the second cell meets a second preset condition, the terminal determines that the second cell is an abnormal cell;

6. The method of claim 5, wherein the determining, by the terminal, that the second cell is an abnormal cell if the signal quality of the TRS of the second cell satisfies a second preset condition comprises:

and if the signal quality of the TRS of the second cell meets the second preset condition and the block error rate BLER of the second cell is larger than a third threshold value, determining that the second cell is an abnormal cell.

7. A cell switching apparatus, the apparatus comprising: the device comprises an acquisition module, a determination module and an execution module, wherein:

the acquisition module is used for acquiring the first signal quality of the second cell under the condition that the terminal is switched from the first cell to the second cell;

the determining module is configured to determine whether the second cell is an abnormal cell according to the first signal quality of the second cell and the second signal quality of the first cell;

The execution module is used for executing a first operation when the second cell is an abnormal cell;

wherein the first operation includes at least one of:

disabling the second cell and performing cell reselection;

8. The apparatus according to claim 7, wherein the acquisition module is configured to perform signal quality measurement on a first signal of a second cell, in particular in case of a terminal handover from the first cell to the second cell, resulting in a first signal quality of the first signal;

9. The apparatus of claim 8, wherein the first signal quality comprises a signal quality of SSB;

10. The apparatus of claim 8, wherein the signal quality measurement comprises a signal quality of an SSB or the first signal quality comprises a signal quality of the SSB and a signal quality of the TRS if the second cell is configured with an SSB beam and a TRS beam;

the determining module is specifically configured to determine to perform the second cell as an abnormal cell if the signal quality of the SSB of the second cell satisfies a first preset condition

Or, if the signal quality of the SSB of the second cell does not meet the first preset condition, determining whether the second cell is an abnormal cell according to the signal quality of the TRS of the second cell;

11. The apparatus of claim 10, wherein the determining module is specifically configured to determine that the second cell is an abnormal cell if a signal quality of a TRS of the second cell meets a second preset condition;

12. The apparatus of claim 11, wherein the determining module is specifically configured to determine that the second cell is an abnormal cell if the signal quality of the TRS of the second cell meets the second preset condition and the block error rate BLER of the second cell is greater than a third threshold.

13. An electronic device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the cell handover method of any of claims 1-6.

14. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the cell handover method according to any of claims 1-6.