CN117939559A

CN117939559A - Cell switching method, device and storage medium

Info

Publication number: CN117939559A
Application number: CN202410323428.3A
Authority: CN
Inventors: 李海波
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2024-03-21
Filing date: 2024-03-21
Publication date: 2024-04-26

Abstract

The application provides a cell switching method, cell switching equipment and a storage medium. The method comprises the following steps: in the call process, receiving first indication information; based on the first indication information, switching from the current first cell to the second cell to carry out conversation, wherein the conversation switching path from the first cell to the second cell is normal. The application can realize that the terminal equipment is only switched to the second cell with normal call switching path when the cell switching is carried out in the call process, thereby avoiding the problem of call drop.

Description

Cell switching method, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a cell handover method, apparatus, and storage medium.

Background

In the related art, in order to avoid that the network device cannot page the terminal device, the terminal device moves to a new cell, and the TAC (TRACKING AREA code ) of the cell does not belong to a preset TAC list or a period timer is overtime, the terminal device needs to initiate a TAU (TRACKING AREA Update) procedure to synchronize with the network device, so that the TAU procedure is frequent in a cell boundary or moving process, and the rejection of the TAU procedure by the network device can cause call drop of the terminal device.

Disclosure of Invention

The embodiment of the application provides a cell switching method, cell switching equipment and a storage medium, which can be used for avoiding the problem of call drop of terminal equipment in the cell boundary or moving process.

In a first aspect, an embodiment of the present application provides a cell handover method, where the method includes:

in the call process, receiving first indication information;

Based on the first indication information, switching from the current first cell to the second cell to carry out conversation, wherein the conversation switching path from the first cell to the second cell is normal.

In an optional embodiment of the first aspect, before receiving the first indication information, the method further includes:

Transmitting a first measurement report, the first measurement report comprising: the signal quality of the first cell and the signal quality of at least one neighboring cell of the first cell, the signal quality of the neighboring cell and the signal quality of the first cell are inferior to a quality threshold configured by the network device, the at least one neighboring cell comprises: and a second cell.

In an optional embodiment of the first aspect, further comprising:

Receiving configuration information, wherein the configuration information comprises: neighbor cell configuration relation and switching strategy of a first cell;

And carrying out cell measurement according to the configuration information to obtain a first measurement report.

In an optional embodiment of the first aspect, the neighbor cell configuration relation includes: at least one neighboring cell of the first cell measures frequency points, the at least one neighboring cell comprising: and a second cell.

In an optional embodiment of the first aspect, the neighbor cell configuration relation does not include: and the third cell, the call switching path from the first cell to the third cell is abnormal.

In an alternative embodiment of the first aspect, the first measurement report does not include: signal quality of the third cell.

In an optional embodiment of the first aspect, the handover policy is used to instruct handover to any one of the neighbor cells in the neighbor cell configuration relation.

In an optional embodiment of the first aspect, the first measurement report further comprises: the signal quality of the third cell is higher than that of the first cell, and the call switching paths from the first cell to the third cell are abnormal.

In an optional embodiment of the first aspect, further comprising:

and sending the minimization drive test data, wherein the minimization drive test data indicates that the call switching paths from the first cell to the third cell are abnormal.

In an optional embodiment of the first aspect, the minimization of drive test data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and third cell identification.

In an optional embodiment of the first aspect, transmitting the minimization of drive test data comprises:

and transmitting the minimization of drive test data under the condition that the communication switching path from the first cell to the third cell is abnormal.

In an optional embodiment of the first aspect, further comprising:

transmitting a second measurement report when the first cell, the second measurement report including signal quality of a third cell;

receiving second indication information, wherein the second indication information is used for indicating switching to a third cell to carry out conversation;

when the tracking area code of the third cell is not in the preset tracking area code list, a tracking area updating request is sent;

if the tracking area update refusal message is received, determining that the call switching path from the first cell to the third cell is abnormal.

In an optional embodiment of the first aspect, further comprising:

And when a response corresponding to the tracking area update request is not received within the time specified by the preset timer, the tracking area update request is sent again.

In a second aspect, an embodiment of the present application provides a cell handover method, including:

Generating first indication information;

And sending first indication information, wherein the first indication information is used for indicating that the current first cell is switched to the second cell to carry out the call, and the call switching path from the first cell to the second cell is normal.

In an alternative embodiment of the second aspect, generating the first indication information includes:

Receiving a first measurement report, the first measurement report comprising: the signal quality of the first cell and the signal quality of at least one neighbor cell of the first cell, wherein the difference between the signal quality of the neighbor cell and the signal quality of the first cell is higher than a quality threshold configured by the network equipment;

First indication information is generated based on the first measurement report.

In an alternative embodiment of the second aspect, further comprising:

Generating configuration information, the configuration information comprising: neighbor cell configuration relation and switching strategy of a first cell;

and sending configuration information, wherein the configuration information is used for indicating to conduct cell measurement according to the configuration information to obtain a first measurement report.

In an optional embodiment of the second aspect, the neighbor configuration relation includes: at least one neighboring cell of the first cell measures frequency points, the at least one neighboring cell comprising: and a second cell.

In an alternative embodiment of the second aspect, the neighbor configuration relation does not include: and the third cell, the call switching path from the first cell to the third cell is abnormal.

In an alternative embodiment of the second aspect, the first measurement report does not include: signal quality of the third cell.

In an alternative embodiment of the second aspect, the handover policy is used to instruct a handover to any one of the neighbor cells in the neighbor cell configuration relation.

In an alternative embodiment of the second aspect, the first measurement report further includes: the signal quality of the third cell is higher than that of the first cell, and the call switching paths from the first cell to the third cell are abnormal.

In an alternative embodiment of the second aspect, further comprising:

and receiving the minimization drive test data, wherein the minimization drive test data indicates that the call switching path from the first cell to the target cell is abnormal.

In an alternative embodiment of the second aspect, minimizing the drive test data includes: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and target cell identification.

In an alternative embodiment of the second aspect, further comprising:

receiving a second measurement report transmitted in the first cell, the second measurement report including signal quality of the target cell;

sending second indication information, wherein the second indication information is used for indicating switching to a target cell to carry out conversation;

Receiving a tracking area update request;

And sending a tracking area update refusal message which is used for indicating that the call switching path from the first cell to the target cell is abnormal.

In an alternative embodiment of the second aspect, generating the configuration information includes:

and generating configuration information according to the minimization of drive test data sent by the at least one terminal device.

In a third aspect, an embodiment of the present application provides a terminal device, including:

the receiving module is used for receiving the first indication information in the call process;

And the switching module is used for switching from the current first cell to the second cell to carry out the call based on the first indication information, and the call switching path from the first cell to the second cell is normal.

In an optional embodiment of the third aspect, further comprising: the sending module is configured to send a first measurement report before receiving the first indication information, where the first measurement report includes: the signal quality of the first cell and the signal quality of at least one neighboring cell of the first cell, the signal quality of the neighboring cell and the signal quality of the first cell are inferior to a quality threshold configured by the network device, the at least one neighboring cell comprises: and a second cell.

In an alternative embodiment of the third aspect,

The receiving module is further configured to receive configuration information, where the configuration information includes: neighbor cell configuration relation and switching strategy of a first cell;

Further comprises: and the measurement module is used for carrying out cell measurement according to the configuration information to obtain a first measurement report.

In an optional embodiment of the third aspect, the neighbor cell configuration relation includes: at least one neighboring cell of the first cell measures frequency points, the at least one neighboring cell comprising: and a second cell.

In an optional embodiment of the third aspect, the neighbor cell configuration relation does not include: and the third cell, the call switching path from the first cell to the third cell is abnormal.

In an alternative embodiment of the third aspect, the first measurement report does not include: signal quality of the third cell.

In an optional embodiment of the third aspect, the handover policy is used to instruct handover to any one of the neighbor cells in the neighbor cell configuration relation.

In an alternative embodiment of the third aspect, the first measurement report further includes: the signal quality of the third cell is higher than that of the first cell, and the call switching paths from the first cell to the third cell are abnormal.

In an optional embodiment of the third aspect, the sending module is further configured to:

In an alternative embodiment of the third aspect, the minimization of drive test data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and third cell identification.

In an optional embodiment of the third aspect, the sending module is specifically configured to, when sending the minimization of drive test data:

In an alternative embodiment of the third aspect,

The sending module is further configured to send a second measurement report when the first cell is located, where the second measurement report includes signal quality of the third cell;

the receiving module is also used for receiving second indication information, and the second indication information is used for indicating switching to a third cell for conversation;

The sending module is further used for sending a tracking area updating request when the tracking area code to which the third cell belongs is not in a preset tracking area code list;

Further comprises: and the determining module is used for determining that the call switching path from the first cell to the third cell is abnormal if the tracking area update reject message is received.

In a fourth aspect, an embodiment of the present application provides a network device, including:

The generation module is used for generating first indication information;

The sending module is used for sending first indication information, the first indication information is used for indicating that the current first cell is switched to the second cell to carry out the call, and the call switching path from the first cell to the second cell is normal.

In an optional embodiment of the fourth aspect, the generating module is specifically configured to:

In an optional embodiment of the fourth aspect, the generating module is further configured to generate configuration information, where the configuration information includes: neighbor cell configuration relation and switching strategy of a first cell;

the sending module is further configured to send configuration information, where the configuration information is used to instruct cell measurement according to the configuration information, and obtain a first measurement report.

In an optional embodiment of the fourth aspect, the neighbor cell configuration relation includes: at least one neighboring cell of the first cell measures frequency points, the at least one neighboring cell comprising: and a second cell.

In an optional embodiment of the fourth aspect, the neighbor configuration relation does not include: and the third cell, the call switching path from the first cell to the third cell is abnormal.

In an alternative embodiment of the fourth aspect, the first measurement report does not include: signal quality of the third cell.

In an optional embodiment of the fourth aspect, the handover policy is used to instruct handover to any one of the neighbor cells in the neighbor cell configuration relation.

In an optional embodiment of the fourth aspect, the first measurement report further comprises: the signal quality of the third cell is higher than that of the first cell, and the call switching paths from the first cell to the third cell are abnormal.

In an optional embodiment of the fourth aspect, further comprising:

and the receiving module is used for receiving the minimization drive test data, wherein the minimization drive test data indicates that the call switching path from the first cell to the target cell is abnormal.

In an alternative embodiment of the fourth aspect, the minimization of drive test data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and target cell identification.

In an optional embodiment of the fourth aspect, the receiving module is further configured to receive a second measurement report sent in the first cell, where the second measurement report includes a signal quality of the target cell;

The sending module is also used for sending second indication information, and the second indication information is used for indicating to switch to the target cell for conversation;

The receiving module is also used for receiving a tracking area update request;

The sending module is further configured to send a tracking area update reject message, where the tracking area update reject message is used to indicate that a call handover path from the first cell to the target cell is abnormal.

In an optional embodiment of the fourth aspect, the generating module is specifically configured to, when generating the configuration information: and generating configuration information according to the minimization of drive test data sent by the at least one terminal device.

In a fifth aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory; the memory stores computer-executable instructions; the processor executes computer-executable instructions stored in the memory to cause the network device to perform a method as in the first aspect or a method as in the second aspect.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program. The computer program, when executed by a processor, implements a method as in the first aspect or a method as in the second aspect.

In a seventh aspect, embodiments of the present application provide a computer program product comprising a computer program which, when run, causes a computer to perform the method as the first aspect or the method of the second aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a scenario of a cell handover method according to an embodiment of the present application;

Fig. 3 is a schematic diagram of a cell handover method according to the related art;

fig. 4 is a flowchart illustrating steps of a cell handover method according to an embodiment of the present application;

Fig. 5 is a schematic diagram of a cell handover method according to an embodiment of the present application;

fig. 6 is a schematic diagram two of a cell handover method according to an embodiment of the present application;

fig. 7 is a schematic diagram III of a cell handover method according to an embodiment of the present application;

Fig. 8 is a schematic diagram of acquiring an abnormality of a call switching path according to an embodiment of the present application;

Fig. 9 is a second flowchart of steps of a cell handover method according to an embodiment of the present application;

Fig. 10 is a block diagram of a terminal device according to an embodiment of the present application;

fig. 11 is a block diagram of a network device according to an embodiment of the present application;

Fig. 12 is a schematic hardware structure of an electronic device according to an embodiment of the present application.

Detailed Description

For purposes of clarity in describing the embodiments of the present application, the words "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

It should be noted that "when (in) … …" or "when (in) … …" in the embodiment of the present application may be an instant when a certain situation occurs, or may be a period of time after a certain situation occurs, which is not particularly limited in the embodiment of the present application. In addition, the display interface provided by the embodiment of the application is only used as an example, and the display interface can also comprise more or less contents.

The terminology involved in the embodiments of the present application will be briefly described below.

TAC: in LTE (Long Term Evolution, long term evolution technology) network, the tracking area code to which a cell belongs is defined by this parameter, and one tracking area may cover one or more cells.

TAU flow: when the terminal equipment is switched to a new cell or a new TA list, the new cell or the new TA list is notified to the MME (Mobility MANAGEMENT ENTITY, mobility management node), so that the MME can update the cell or the TA list where the terminal equipment is located in time.

MRU: the mobility registration update procedure in 5G (fifth generation mobile communication technology) corresponds to the TAU procedure.

MDT: minimizationofDrive-Test, minimization of drive Test, is an automatic drive Test technology introduced by 3G, 4G and 5G, which is configured to terminal equipment through a network to collect, report and preprocess measurement data.

A3 event: for the handover event, when the service quality of the neighbor cell is higher than the service quality of the current cell by an absolute threshold, triggering an A3 event.

In order to better understand the information indication method provided by the embodiment of the present application, the following first describes the architecture of the communication system of the embodiment of the present application.

Fig. 1 is an exemplary diagram of a communication system architecture according to an embodiment of the present application. As shown in fig. 1, the communication system includes a terminal device 101 and a network device 102, the terminal device 101 wirelessly communicating with the network device 102.

The terminal device related to the embodiment of the application can also be called a terminal, can be a device with a wireless receiving and transmitting function, and can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The terminal device may be a User Equipment (UE), wherein the UE includes a handheld device, an in-vehicle device, a wearable device, or a computing device with wireless communication capabilities. The UE may be a mobile phone (mobile phone), a tablet computer, or a computer with a wireless transceiver function, for example. The terminal device may also be a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), etc. In the embodiment of the present application, the device for implementing the function of the terminal may be the terminal; or may be a device, such as a chip system, capable of supporting the terminal to perform the function, which may be installed in the terminal.

The network device 102 according to the embodiment of the present application includes an access network device 1021 and a core network device 1022.

The access network (radio access network, RAN) device is an intermediate device for accessing the terminal to the core network device in a wireless manner, and is mainly responsible for radio resource control management, quality of service (quality of service, qoS) management, data compression, encryption, and the like on the air interface side. For example: base stations NodeB, evolved base stations eNodeB, base stations in a 5G mobile communication system or a new generation radio (NR) communication system, base stations in a future mobile communication system, etc.

The Core Network (CN) device includes a user plane function (user plane function, UPF) network element, an access and mobility management function (ACCESS AND mobility management function, AMF) network element, a session management function (session management function, SMF) network element, a policy control function (policy control function, PCF) network element, and the like. The UPF network element is mainly responsible for transmitting user data, and other network elements can be called control plane function network elements and are mainly responsible for authentication, registration management, session management, mobility management, policy control and the like so as to ensure reliable and stable transmission of the user data.

In the embodiment of the present application, the means for implementing the function of the network device may be the network device, or may be a means capable of supporting the network device to implement the function, for example, a chip system, and the apparatus may be installed in the network device.

The technical solution provided by the embodiment of the application can be applied to a long term evolution (Long Term Evolution, LTE) architecture, a universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) terrestrial radio access network (UMTS Terrestrial Radio Access Network, UTRAN) architecture, or a global system for mobile communications (Global System for Mobile Communication, GSM)/enhanced data rates for GSM evolution (ENHANCED DATA RATE for GSM Evolution, EDGE) system radio access network (GSM EDGE Radio Access Network, GERAN) architecture. In addition, the technical solution provided in the embodiment of the present application may be applied to any other wireless communication system having similar structures and functions, for example, a public land mobile network (Public Land Mobile Network, PLMN) system, a 5G communication system or a 5G after communication system, etc., which is not limited in any way.

The wireless communication between the communication devices may include: wireless communication between a network device and a terminal, wireless communication between a network device and a network device, and wireless communication between a terminal and a terminal. In the embodiments of the present application, the term "wireless communication" may also be simply referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission". A person skilled in the art may use the technical solution provided by the embodiment of the present application to perform wireless communication between a network device and a terminal, for example, wireless communication between an access network device and a terminal, and wireless communication between a core network device and a terminal.

The application scenario of the embodiment of the application is shown in fig. 2, and includes a cell a, a cell b, a cell c and a cell d. When the terminal device performs a call at the edge of the cell, for example, when the terminal device performs a call based on the cell a, the terminal device detects that the signal quality of the cell b and the cell c is stronger, and then the terminal device can switch to the cell b or the cell c to continue the call. If the terminal equipment is to be switched to the cell b to continue the call, but the call switching path from the cell a to the cell b is abnormal, the terminal equipment is to be switched to the cell b to not continue the call, and the call drop problem exists.

Referring to fig. 3, a method for performing cell handover during a call according to the related art is shown, specifically, the method includes the following steps:

s301, switching from a current cell to a new cell.

During the call of the terminal equipment, the terminal equipment is switched from the current cell to the new cell.

S302, detecting that the TAC of the new cell is not in the TA list.

When the terminal equipment is switched to the new cell, the terminal equipment determines that the TAC of the new cell is not in the TA list through detection.

S303, a TAU request message is sent.

When the terminal equipment detects that the TAC of the new cell is not in the TA list, the terminal equipment sends a TAU request message to the network equipment, specifically sends the TAU request message to the MME of the core network equipment in the network equipment.

S304, detecting that no response is received within the time specified by the preset timer.

The terminal detects whether a response sent by the network equipment based on the TAU request message is received or not in a time specified by a preset timer. If no response is received, S305 is executed. For example, preset timers such as T3430 and T3411 are started after T3430 times out, and S305 is performed after T3411 times out.

S305, retransmitting the TAU request message.

Wherein the terminal device sends a TAU request message to the network device again.

S306, receiving a TAU refusal message.

The terminal device receives a TAU reject message sent by the network device, where the TAU reject message carries a reject cause, e.g., "#9", where #9 indicates that the network device cannot derive the terminal device identifier. Indicating that the terminal device fails to switch from the first cell to the second cell for call switching.

S307, reattachment.

And the terminal equipment reattaches to the network equipment after receiving the TAU rejection message so as to switch to the second cell.

Further, if the terminal device reattaches, call drop is caused.

In the actual detection process, when detecting that the terminal equipment moves at the edge of a cell, the call drop problem occurs, and specifically, the following steps are detected: the position of the terminal equipment is provided with a plurality of cells, the signal intensity difference between the cells is small, and the rate belongs to a plurality of TACs, so that the cells are easy to switch, and the TAU flow is needed to be carried out with high probability after the switching; after switching from the cell 1 to the cell 2 can be stably reproduced, the network equipment does not respond to the TAU request sent by the terminal equipment, even if the network equipment is switched to other cells later, the corresponding TAU response message is not received, and after overtime, the TAU request message is restarted, and the TAU rejection message of the network is immediately received, so that the call is dropped; the problem that TAU does not respond to and reject the call drop does not exist when switching from other cells (non-cell 1) to cell 2, and the problem that TAU causes the call drop does not exist when switching from cell 1 to other cells (non-cell 2); meanwhile, the problem of TAU abnormality does not occur in the process of switching from the cell 2 to the cell 1.

The detection process refers to the following table 1, in table 1, the handover paths and the corresponding handover states of the terminal device in the four detection processes are obtained, and in the scene of table 1, there are a plurality of cells, and all the cells 1 to 6 are cells under 4G (fourth generation communication technology).

TABLE 1

In the first detection process, the terminal device firstly performs a call in the cell 3, then successfully switches to the cell 4, then successfully switches to the cell 1 from the cell 4, then switches to the cell 2 from the cell 1, sends a TAU request message to the network device, does not receive a response, and after the timer expires, the terminal device re-sends the TAU request message to the network device in the cell 2, receives a TAU reject message, then switches to the cell 3 for re-registration connection, then switches to the 5G cell 1, and redirects back to the 5G connection state. In the embodiment of the application, successful handover comprises successful cell handover, and when a TAU flow exists, successful handover also comprises successful TAU. In the second detection process, the terminal device firstly performs a call in the 5G cell 1, then successfully switches to the cell 6, then successfully switches from the cell 6 to the cell 3, then successfully switches from the cell 3 to the cell 2, then successfully switches from the cell 2 to the cell 3 (no TAU procedure is performed in the switching process), then successfully switches from the cell 3 to the cell 1, then when switching from the cell 1 to the cell 2, sends a TAU request message to the network device, does not receive a response, then switches to the cell 3, sends a TAU request message to the network device, does not receive a response, then switches to the 5G cell 2, and redirects back to 5G, and the registration connection is refused. In the third detection process, the terminal device firstly performs a call in the 5G cell 1, then successfully switches to the cell 5, then successfully switches to the cell 1 from the cell 5, then successfully switches to the cell 3 from the cell 1, then successfully switches to the cell 6 from the cell 3, then successfully switches to the cell 1 from the cell 6, then switches to the cell 2 from the cell 1, sends a TAU request message to the network device, does not receive a response, then sends a TAU request message to the network device when switching to the cell 3, does not receive a response, re-sends the TAU request message to the network device in the cell 3, is rejected by the network device, and finally re-performs registration connection in the cell 3. In the fourth detection process, the terminal device firstly performs a call in the 5G cell 1, then successfully switches to the cell 5, then successfully switches from the cell 5 to the cell 3, then successfully switches from the cell 3 to the cell 1, then when switching from the cell 1 to the cell 2, sends a TAU request message to the network device, does not receive a response, then sends the TAU request message to the network device when switching to the cell 3, does not receive a response, re-sends the TAU request message to the network device in the cell 3, is rejected by the network device, and finally re-performs registration connection in the cell 3.

In summary, through the above four detection processes, it can be determined that the call handover path from cell 1 to cell 2 is abnormal, but the call handover path from cell 1 to other cell than cell 2 is normal, and the call handover path from other cell than cell 1 to cell 2 is normal.

Further, for an abnormal call switching path, different terminal devices may be abnormal when the call switching path is switched. In addition, if the terminal device measures the RSRP (reference signal received power) of the cell 2 poorly in the cell 1, the terminal device does not switch to the cell 2, and it cannot detect that there is an abnormality in switching the cell 1 to the cell 2. Furthermore, if the terminal device sends the TAU request message to the network device, the TAU receiving message is not received beyond the preset duration, which also affects normal call.

In this regard, the embodiment of the application provides a cell switching method, which has the main inventive ideas as follows: in the call process, receiving first indication information; based on the first indication information, switching from the current first cell to the second cell to carry out conversation, wherein the conversation switching path from the first cell to the second cell is normal. The application can realize the switching of the terminal equipment to the second cell with normal call switching path in the call process, and avoid the call drop problem of the terminal equipment.

The technical scheme shown in the application is described in detail by specific examples. It should be noted that the following embodiments may exist alone or in combination with each other. For the same or similar matters, for example, explanation of terms or nouns, explanation of steps, etc., reference may be made to each other in different embodiments, and the explanation is not repeated.

Fig. 4 is a schematic diagram of a cell handover method according to an embodiment of the present application. As shown in fig. 4, the cell switching method provided in this embodiment is applied to a terminal device, and includes:

S401, in the conversation process, receiving first indication information.

In the embodiment of the present application, the first indication information is handover indication information, which is used to instruct the terminal device to handover from the first cell to the second cell.

S402, based on the first indication information, switching from the current first cell to the second cell to carry out conversation, wherein a conversation switching path from the first cell to the second cell is normal.

In the embodiment of the application, the normal call switching path means that the terminal equipment switches from the first cell to the second cell in the call process, and the call quality is not obviously reduced or the call is dropped.

It can be understood that the problem of a significant decrease in call quality and call drop does not occur in the terminal device switching from the first cell to the second cell during the call.

In an alternative embodiment, referring to fig. 5, the steps include:

S501, in the first cell.

Wherein the terminal device is talking in the first cell.

S502, determining to switch to the second cell.

Wherein the network device determines to handover the serving cell of the terminal device from the first cell to the second cell.

S503, sending first indication information.

And after the network equipment determines to switch the service cell of the terminal equipment from the first cell to the second cell, the network equipment sends first indication information to the terminal equipment.

S504, switching to the second cell.

And the terminal equipment is switched to the second cell for conversation based on the first indication information.

Further, before receiving the first indication information, the method further includes: transmitting a first measurement report, the first measurement report comprising: the signal quality of the first cell and the signal quality of at least one neighboring cell of the first cell, the signal quality of the neighboring cell and the signal quality of the first cell are inferior to a quality threshold configured by the network device, the at least one neighboring cell comprises: and a second cell.

In the embodiment of the present application, the signal quality may be represented by RSRP (REFERENCE SIGNAL RECEIVING Power, reference signal received Power), and the quality threshold may be a preset reference signal received Power threshold.

Specifically, referring to fig. 6, the method includes the steps of:

s601, in a first cell.

Wherein the terminal device is talking in the first cell.

S602, a first measurement report is sent.

The terminal equipment triggers an A3 event and sends a first measurement report to the network equipment.

Further, the call switching paths from the first cell to any neighboring cell are normal. And the call switching path can be normal to part of the call switching paths.

Illustratively, referring to fig. 2, the first cell is cell a, and the neighbor cells of the first cell are cell b, cell c, and cell d. Wherein, the communication quality of the cell b, the cell c and the cell d is higher than that of the cell a, and the difference is larger than the quality threshold. The first measurement report includes: the communication quality of cell a, the communication quality of cell b, the communication quality of cell c and the communication quality of cell d.

Another example, referring to fig. 2, the first cell is cell a, and the neighbor cells of the first cell are cell b, cell c, and cell d. Wherein, the communication quality of the cell b, the cell c and the cell d is higher than that of the cell a, and the difference is larger than the quality threshold. The first measurement report may not include the communication quality of the cell b, wherein the call handover path from the cell a to the cell b is abnormal, and the first measurement report includes only: the communication quality of cell a, the communication quality of cell c and the communication quality of cell d.

S603, determining to switch to the second cell.

In the embodiment of the application, the network device can determine the second cell to which the terminal device is to be switched according to the first measurement report and whether the call switching path from the first cell to each neighboring cell is normal.

Illustratively, the first measurement report includes: the communication quality of cell a, the communication quality of cell b, the communication quality of cell c and the communication quality of cell d. The network device determines that the communication quality of the cell b is greater than that of the cell c and that of the cell d, but the network device determines that the call handover path from the cell a to the cell b is abnormal through the prestored big data, the network device may determine that the cell c is the second cell. The network device switches the serving cell of the terminal device from the first cell to cell c.

Another example, the first measurement report includes: the communication quality of cell a, the communication quality of cell c and the communication quality of cell d. The network device determines that the communication quality of the cell c is greater than that of the cell d, and the call switching paths from the cell a to the cell d are all normal from the cell a to the cell c, so that the network device can determine that the cell c is a second cell. The network device switches the serving cell of the terminal device from the first cell to cell c.

S604, sending first indication information.

S605, switching to the second cell.

Further, the method further comprises the following steps: receiving configuration information, wherein the configuration information comprises: neighbor cell configuration relation and switching strategy of a first cell; and carrying out cell measurement according to the configuration information to obtain a first measurement report.

Illustratively, referring to FIG. 7, the steps include:

S701, in the first cell.

Wherein the terminal device is talking in the first cell.

S702, receiving configuration information.

The neighboring cell configuration relation comprises the following steps: at least one neighboring cell of the first cell measures frequency points, the at least one neighboring cell comprising: and a second cell.

In the embodiment of the application, the terminal equipment measures the signal quality of the adjacent cell according to the measurement frequency point.

In one embodiment, the call switching paths from the first cell to at least one neighboring cell in the neighboring cell configuration relationship are normal, or the call switching paths from the first cell to a part of neighboring cells in the neighboring cell configuration relationship are normal, and the part of the call switching paths are abnormal.

It can be understood that at least one neighbor cell in the neighbor cell configuration relationship includes or does not include a third cell, the third cell is a neighbor cell of the first cell, and a call handover path from the first cell to the third cell is abnormal.

For example, referring to fig. 2, the first cell is a cell a, and at least one neighboring cell in the neighboring cell configuration relationship has a cell c and a cell d, where the call handover paths from cell a to cell c to cell a to cell d are normal.

As another example, referring to fig. 2, the first cell is a cell a, and at least one neighboring cell in the neighboring cell configuration relationship has a cell b and a cell c, where a call handover path from the cell a to the cell b is abnormal, a call handover path from the cell a to the cell c is normal, and a call handover path from the cell a to the cell d is normal.

Under the condition that the call switching paths of at least one neighbor cell in the first cell-to-neighbor cell configuration relationship are normal, the switching strategy is used for indicating switching to any one neighbor cell in the neighbor cell configuration relationship.

And S703, carrying out cell measurement according to the configuration information to obtain a first measurement report.

In the embodiment of the application, the terminal equipment only carries out cell measurement on the first cell and the neighbor cells in the neighbor cell configuration relation.

For example, if at least one neighboring cell in the neighboring cell configuration relationship has a cell c and a cell d, the terminal device performs cell measurement on the first cell and the cell c and the cell d. If at least one neighbor cell in the neighbor cell configuration relationship has a cell b, a cell c and a cell d, the terminal device performs cell measurement on the first cell and the cell b, the cell c and the cell d.

In the embodiment of the present application, if the neighboring cell configuration relationship does not include the third cell, the first measurement report does not include: signal quality of the third cell.

If the neighboring cell configuration relationship includes a third cell, the first measurement report further includes: the signal quality of the third cell is higher than that of the first cell, and the call switching paths from the first cell to the third cell are abnormal. And the difference between the signal quality of the third cell and the signal quality of the first cell is greater than the quality threshold.

S704, a first measurement report is sent.

The implementation process of this step refers to S602, and will not be described in detail herein.

S705, determining to switch to the second cell.

The implementation procedure of this step refers to S603, and will not be described here again.

S706, the first indication information is sent.

S707, switching to the second cell.

Further, referring to fig. 8, the present application further includes the steps of:

Wherein, still include: and sending the minimization drive test data, wherein the minimization drive test data indicates that the call switching paths from the first cell to the third cell are abnormal.

Further, the minimization of drive tests data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and third cell identification.

Further, transmitting the minimization of drive test data comprises: and transmitting the minimization of drive test data under the condition that the communication switching path from the first cell to the third cell is abnormal.

Further comprises: transmitting a second measurement report when the first cell, the second measurement report including signal quality of a third cell; receiving second indication information, wherein the second indication information is used for indicating switching to a third cell to carry out conversation; when the tracking area code of the third cell is not in the preset tracking area code list, a tracking area updating request is sent; if the tracking area update refusal message is received, determining that the call switching path from the first cell to the third cell is abnormal.

Further, the method further comprises the following steps: and when a response corresponding to the tracking area update request is not received within the time specified by the preset timer, the tracking area update request is sent again.

Specifically, referring to fig. 8, the method includes the steps of:

S801, in the first cell.

Wherein the terminal device is talking in the first cell.

S802, sending a second measurement report.

Wherein the second measurement report includes the communication quality of the first cell and the communication quality of each neighbor cell of the first cell.

S803, receiving second indication information.

The network device selects a neighboring cell (such as a third cell) suitable for switching the terminal device as the neighboring cell to be switched to according to the communication quality of each neighboring cell in the second measurement report, and generates second indication information based on the third cell, wherein the second indication information is used for indicating the terminal device to switch to the third cell.

S804, a tracking area update request is sent.

And when the terminal equipment determines that the tracking area code of the third cell is not in the preset tracking area code list, sending a tracking area updating request to the network equipment.

S805, a response corresponding to the tracking area update request is not received within a time specified by the preset timer.

Wherein a timer such as the timers T3430 and T3411 is preset, for example. The time specified by T3430 is 15 seconds, the time specified by T3411 is 10 seconds, and when the terminal device detects that the response of the network device is not received within 15 seconds from the start of transmitting the tracking area update request, the suppression phase for 10 seconds has passed, S806 is executed.

S806, the tracking area update request is sent again.

Wherein the terminal device again sends a tracking area update request to the network device.

S807, the tracking area updates the reject message.

The tracking area update reject message received by the terminal device includes a reject cause, such as cause #9, where #9 indicates that the network device cannot derive the terminal device identifier.

S808, determining that the call switching path is abnormal.

After receiving the update reject message of the tracking area, the terminal device determines that the call switching paths from the first cell to the third cell are abnormal, and then the call switching paths from the first cell to the third cell can be cached to the minimization of drive test data.

S809, transmitting the minimization of drive tests data.

And the terminal equipment sends the minimization of drive test data to the network equipment.

S810, clustering analysis.

The network device may receive the minimization drive test data sent by different terminal devices, perform cluster analysis on the minimization drive test data to obtain a cell with abnormal call switching paths, store the cell, and then execute the steps shown in fig. 4 to 7, so as to instruct the terminal device to avoid switching to the cell with abnormal call switching paths.

In the embodiment of the application, the terminal equipment reports the TAU/MRU rejection message and the abnormal call switching path information based on the MDT to instruct the network equipment to adjust the neighbor cell configuration relation and the switching strategy of each base station so as to avoid the specific cell switching path, thereby avoiding the problem of abnormal call caused by switching cells in the call process of the terminal equipment.

Referring to fig. 9, a cell handover method is shown, applied to a network device, comprising the steps of:

S901, first instruction information is generated.

The network device can switch the terminal device to the second cell according to the call switching path abnormality stored by the network device and the first cell where the terminal device is located, avoid switching to the third cell with the call switching path abnormality, and then generate the first indication information.

Further, generating the first indication information includes: receiving a first measurement report, the first measurement report comprising: the signal quality of the first cell and the signal quality of at least one neighbor cell of the first cell, wherein the difference between the signal quality of the neighbor cell and the signal quality of the first cell is higher than a quality threshold configured by the network equipment; first indication information is generated based on the first measurement report.

S902, first indication information is sent, wherein the first indication information is used for indicating that a call is switched from a current first cell to a second cell, and a call switching path from the first cell to the second cell is normal.

The network device sends first indication information to the terminal device, and the first indication information is used for indicating the terminal device to switch from the current first cell to the second cell.

Further, the method further comprises the following steps: generating configuration information, the configuration information comprising: neighbor cell configuration relation and switching strategy of a first cell; and sending configuration information, wherein the configuration information is used for indicating to conduct cell measurement according to the configuration information to obtain a first measurement report.

In one embodiment, the neighbor cell configuration relationship does not include: and the third cell, the call switching path from the first cell to the third cell is abnormal.

Further, the first measurement report does not include: signal quality of the third cell.

The switching strategy is used for indicating switching to any one neighbor cell in the neighbor cell configuration relation.

In an embodiment of the present application, the first measurement report further includes: the signal quality of the third cell is higher than that of the first cell, and the call switching paths from the first cell to the third cell are abnormal.

Further, the method further comprises the following steps: and receiving the minimization drive test data, wherein the minimization drive test data indicates that the call switching path from the first cell to the target cell is abnormal.

Wherein the minimization of drive tests data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and target cell identification.

Furthermore, the method further comprises: receiving a second measurement report transmitted in the first cell, the second measurement report including signal quality of the target cell; sending second indication information, wherein the second indication information is used for indicating switching to a target cell to carry out conversation; receiving a tracking area update request; and sending a tracking area update refusal message which is used for indicating that the call switching path from the first cell to the target cell is abnormal.

Further, generating the configuration information includes: and generating configuration information according to the minimization of drive test data sent by the at least one terminal device.

Other specific implementation procedures of this embodiment are referred to above and will not be described herein.

Fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 10, the terminal device 101 of the present embodiment includes: a receiving module 1001 and a switching module 1002, wherein:

A receiving module 1001, configured to receive first indication information during a call;

The switching module 1002 is configured to switch from a current first cell to a second cell for a call based on the first indication information, where a call switching path from the first cell to the second cell is normal.

In an alternative embodiment, the method further comprises: a transmitting module (not shown) for transmitting a first measurement report before receiving the first indication information, the first measurement report comprising: the signal quality of the first cell and the signal quality of at least one neighboring cell of the first cell, the signal quality of the neighboring cell and the signal quality of the first cell are inferior to a quality threshold configured by the network device, the at least one neighboring cell comprises: and a second cell.

In an alternative embodiment, the receiving module 1001 is further configured to receive configuration information, where the configuration information includes: neighbor cell configuration relation and switching strategy of a first cell;

Further comprises: and a measurement module (not shown) for performing cell measurement according to the configuration information to obtain a first measurement report.

In an alternative embodiment, the neighbor cell configuration relationship includes: at least one neighboring cell of the first cell measures frequency points, the at least one neighboring cell comprising: and a second cell.

In an alternative embodiment, the neighbor cell configuration relationship does not include: and the third cell, the call switching path from the first cell to the third cell is abnormal.

In an alternative embodiment, the first measurement report does not include: signal quality of the third cell.

In an alternative embodiment, the handover policy is used to instruct handover to any one of the neighboring cells in the neighboring cell configuration relationship.

In an alternative embodiment, the first measurement report further includes: the signal quality of the third cell is higher than that of the first cell, and the call switching paths from the first cell to the third cell are abnormal.

In an alternative embodiment, the sending module is further configured to: and sending the minimization drive test data, wherein the minimization drive test data indicates that the call switching paths from the first cell to the third cell are abnormal.

In an alternative embodiment, the minimization of drive tests data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and third cell identification.

In an alternative embodiment, the sending module is specifically configured to, when sending the minimization of drive test data:

In an alternative embodiment, the sending module is further configured to send, when the first cell, a second measurement report, where the second measurement report includes a signal quality of the third cell;

The receiving module 1001 is further configured to receive second indication information, where the second indication information is used to instruct switching to the third cell to perform a call;

Further comprises: a determining module (not shown) for determining that the call handover path from the first cell to the third cell is abnormal if the tracking area update reject message is received.

In an alternative embodiment, the sending module is further configured to: and when a response corresponding to the tracking area update request is not received within the time specified by the preset timer, the tracking area update request is sent again.

The terminal device provided in this embodiment is configured to implement the technical solution of the terminal device in the foregoing method embodiment, and the implementation principle and the technical effect are similar and are not described herein again.

Fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 11, the network device 102 of the present embodiment includes: a generating module 1101 and a transmitting module 1102, wherein:

A generating module 1101, configured to generate first indication information;

and the sending module 1102 is configured to send first indication information, where the first indication information is used to indicate that a call is switched from a current first cell to a second cell, and a call switching path from the first cell to the second cell is normal.

In an alternative embodiment, the generating module 1101 is specifically configured to: receiving a first measurement report, the first measurement report comprising: the signal quality of the first cell and the signal quality of at least one neighbor cell of the first cell, wherein the difference between the signal quality of the neighbor cell and the signal quality of the first cell is higher than a quality threshold configured by the network equipment; first indication information is generated based on the first measurement report.

In an alternative embodiment, the generating module 1101 is further configured to generate configuration information, where the configuration information includes: neighbor cell configuration relation and switching strategy of a first cell;

The sending module 1102 is further configured to send configuration information, where the configuration information is used to instruct cell measurement according to the configuration information, and obtain a first measurement report.

In an alternative embodiment, the method further comprises: a receiving module (not shown) is configured to receive minimization of drive test data, where the minimization of drive test data indicates that a call handover path from the first cell to the target cell is abnormal.

In an alternative embodiment, the minimization of drive tests data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and target cell identification.

In an alternative embodiment, the receiving module is further configured to receive a second measurement report sent in the first cell, where the second measurement report includes a signal quality of the target cell;

The sending module 1102 is further configured to send second indication information, where the second indication information is used to instruct switching to the target cell to perform a call;

The receiving module is also used for receiving a tracking area update request;

the sending module 1102 is further configured to send a tracking area update reject message, where the tracking area update reject message is used to indicate that a call handover path from the first cell to the target cell is abnormal.

The network device provided in this embodiment may be a core network device or an access network device, which is configured to implement the technical scheme of the core network device or the access network device in the foregoing method embodiment, and the implementation principle and the technical effect are similar, and are not repeated herein.

Fig. 12 is a schematic hardware structure of an electronic device according to an embodiment of the present application. As shown in fig. 12, the electronic device 120 includes: a processor 121 and a memory 122; memory 122 stores computer-executable instructions; the processor 121 executes the computer-executable instructions stored in the memory 122, so that the technical solution in the foregoing method embodiment is electronically executed, and the implementation principle and technical effects are similar, which are not repeated herein.

The embodiments of the present application also provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the method steps as in the foregoing method embodiments.

Embodiments of the present application provide a computer program product comprising a computer program which, when run, causes a computer to perform the method steps as in the method embodiments described above.

The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer readable media can include computer storage media and communication media and can include any medium that can transfer a computer program from one place to another. The storage media may be any target media that is accessible by a computer.

In one possible implementation, the computer readable medium may include RAM, ROM, a compact disk-read only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium targeted for carrying or storing the desired program code in the form of instructions or data structures and accessible by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (Digital Subscriber Line, DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, includes optical disc, laser disc, optical disc, digital versatile disc (DIGITAL VERSATILE DISC, DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

Embodiments of the present application provide a computer program product comprising a computer program which, when executed, causes a computer to perform the above-described method.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The foregoing detailed description of the invention has been presented for purposes of illustration and description, and it should be understood that the foregoing is by way of illustration and description only, and is not intended to limit the scope of the invention.

Claims

1. A method for cell handover, comprising:

in the call process, receiving first indication information;

and switching from the current first cell to the second cell for conversation based on the first indication information, wherein a conversation switching path from the first cell to the second cell is normal.

2. The method of claim 1, wherein prior to receiving the first indication information, further comprising:

transmitting a first measurement report, the first measurement report comprising: the signal quality of a first cell and the signal quality of at least one neighboring cell of the first cell, wherein the difference between the signal quality of the neighboring cell and the signal quality of the first cell is higher than a quality threshold configured by network equipment, and the at least one neighboring cell comprises: the second cell.

3. The method as recited in claim 2, further comprising:

receiving configuration information, the configuration information comprising: the configuration relation and the switching strategy of the adjacent cell of the first cell;

And carrying out cell measurement according to the configuration information to obtain the first measurement report.

4. The method of claim 3, wherein the neighbor configuration relationship comprises: measuring frequency points of at least one neighboring cell of the first cell, the at least one neighboring cell comprising: the second cell.

5. The method of claim 3, wherein the neighbor configuration relationship does not include: and the call switching path from the first cell to the third cell is abnormal.

6. The method of claim 5, wherein the first measurement report does not include: signal quality of the third cell.

7. The method according to any one of claims 3 or 6, wherein the handover policy is used to instruct handover to any one of the neighbor cells in the neighbor cell configuration relationship.

8. The method of claim 7, wherein the first measurement report further comprises: and the signal quality of a third cell is higher than that of the first cell, and the call switching path from the first cell to the third cell is abnormal.

9. The method according to any one of claims 1 to 6, further comprising:

And sending the minimization of drive test data, wherein the minimization of drive test data indicates that the call switching paths from the first cell to the third cell are abnormal.

10. The method of claim 9, wherein the minimization of drive test data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and third cell identification.

11. The method of claim 9, wherein the transmitting the minimization of drive test data comprises:

12. The method as recited in claim 11, further comprising:

transmitting a second measurement report when the first cell, the second measurement report including the signal quality of the third cell;

Receiving second indication information, wherein the second indication information is used for indicating switching to the third cell to carry out conversation;

When the tracking area code of the third cell is not in a preset tracking area code list, a tracking area updating request is sent;

And if the tracking area updating refusal message is received, determining that the call switching path from the first cell to the third cell is abnormal.

13. The method as recited in claim 12, further comprising:

14. A method for cell handover, comprising:

Generating first indication information;

And sending first indication information, wherein the first indication information is used for indicating that a call is switched from a current first cell to a second cell, and a call switching path from the first cell to the second cell is normal.

15. The method of claim 14, wherein the generating the first indication information comprises:

Receiving a first measurement report, the first measurement report comprising: the method comprises the steps that the signal quality of a first cell and the signal quality of at least one adjacent cell of the first cell are different from the signal quality of the first cell by a quality threshold configured by network equipment;

The first indication information is generated based on the first measurement report.

16. The method as recited in claim 15, further comprising:

Generating configuration information, the configuration information comprising: the configuration relation and the switching strategy of the adjacent cell of the first cell;

and sending configuration information, wherein the configuration information is used for indicating to conduct cell measurement according to the configuration information so as to obtain the first measurement report.

17. The method of claim 16, wherein the neighbor configuration relationship comprises: measuring frequency points of at least one neighboring cell of the first cell, the at least one neighboring cell comprising: the second cell.

18. The method of claim 17, wherein the neighbor configuration relation does not include: and the call switching path from the first cell to the third cell is abnormal.

19. The method of claim 18, wherein the first measurement report does not include: signal quality of the third cell.

20. The method according to claim 16 or 17, wherein the handover policy is used to instruct a handover to any one of the neighbor cells in the neighbor cell configuration relation.

21. The method of claim 20, wherein the first measurement report further comprises: and the signal quality of a third cell is higher than that of the first cell, and the call switching path from the first cell to the third cell is abnormal.

22. The method according to any one of claims 14 to 19, further comprising:

and receiving minimization of drive test data, wherein the minimization of drive test data indicates that the call switching path from the first cell to the target cell is abnormal.

23. The method of claim 22, wherein the minimization of drive test data comprises: the method comprises the steps of fault type, tracking area update flow triggering reason, first cell identification and target cell identification.

24. The method as recited in claim 23, further comprising:

receiving a second measurement report sent by the first cell, wherein the second measurement report comprises the signal quality of the target cell;

transmitting second indication information, wherein the second indication information is used for indicating switching to the target cell to carry out conversation;

Receiving a tracking area update request;

And sending a tracking area update refusal message, wherein the tracking area update refusal message is used for indicating that a call switching path from the first cell to the target cell is abnormal.

25. The method of claim 24, wherein the generating configuration information comprises:

And generating the configuration information according to the minimization of drive test data sent by the at least one terminal device.

26. An electronic device, comprising: a processor and a memory;

The memory stores computer-executable instructions;

The processor executing computer-executable instructions stored in the memory causing the electronic device to perform the method of any one of claims 1 to 13 or causing the electronic device to perform the method of any one of claims 14 to 25.

27. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method of any one of claims 1 to 13 or implements the method of any one of claims 14 to 25.

28. A computer program product comprising a computer program which, when run, causes a computer to perform the method of any one of claims 1 to 13 or to carry out the method of any one of claims 14 to 25.