CN110392404B - Cell switching control method and base station - Google Patents
Cell switching control method and base station Download PDFInfo
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- CN110392404B CN110392404B CN201810362718.3A CN201810362718A CN110392404B CN 110392404 B CN110392404 B CN 110392404B CN 201810362718 A CN201810362718 A CN 201810362718A CN 110392404 B CN110392404 B CN 110392404B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
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Abstract
The embodiment of the invention provides a cell switching control method and a base station. The method is applied to a source cell, and comprises the following steps: when a failure switching-back request sent by a terminal is received, determining a target cell corresponding to the failure switching-back request; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure; determining a number of requests corresponding to failed handoff requests of the target cell; and when the request times reach a preset threshold value of the target cell, stopping forwarding the ESRVCC switching request aiming at the target cell. The embodiment of the invention realizes the linkage punishment of the cell level, avoids the situation that a plurality of different UEs in the coverage area of the source cell respectively execute the ESRVCC switching for a plurality of times and fail the switching in a short time under the condition that the target cell is in a low-access scene, and improves the success rate of the ESRVCC switching.
Description
Technical Field
The embodiment of the invention relates to the technical field of mobile communication, in particular to a cell switching control method and a base station.
Background
With the development of mobile communication technology, Long Term Evolution (LTE) of universal mobile telecommunications technology has occupied a large amount of user market share with its superior characteristics. In LTE, Enhanced Single Radio Voice Call Continuity (ESRVCC) is a more important technology. The ESRVCC is an enhancement to Single Radio Voice Call Continuity (SRVCC). SRVCC refers to a technology in which, when a User roams from an Evolved UMTS Terrestrial Radio Access Network (E-UTRAN) to a UMTS Radio Access Network (UMTS Radio Access Network, UTRAN)/GSM EDGE Radio Access Network (GSM EDGE Radio Access Network, GERAN) in a call process, voice call continuity is maintained through switching between a User Equipment (UE) and a Network device, that is, the User call is not interrupted.
The ESRVCC optimizes the networking of SRVCC. Specifically, the ESRVCC sets an Access Transfer Control Function (ATCF) ATCF/Access Transfer Gateway ATGW (ATGW) Function entity between a P-CSCF and an I-CSCF/S-CSCF of a Call Session Control (CSCF) node by setting the ATGW Function, and anchors a media stream to the ATGW for a Call that may have SRVCC handover, so that when SRVCC handover occurs subsequently, only media information on the ATGW needs to be updated, and media information of remote UE does not need to be updated, which shortens the entire SRVCC handover time.
Specifically, the flow of the ESRVCC mainly includes a preparation phase, an IST phase, and an execution phase. The execution stage mainly includes that the UE is synchronously accessed in a Global System for Mobile communication (GSM) network, an Enhanced Mobile Switching Center (EMSC) is informed that the UE is successfully accessed through a Base Station Controller (BSC) and a Mobile Switching Center (MSC), and then the EMSC forwards the PS to CS Switching completion to a Mobile Management Entity (MME) through an Sv interface to inform the user that the Switching is successful, and then the MME triggers and deletes all LTE lower layer bearers of the UE.
However, when performing the ESRVCC handover, a handover failure may occur, that is, the user cannot access the target GSM cell synchronously, at this time, in order to keep the volte (voice Over LTE) call from dropping, the UE may select Radio Resource Control (RRC) to re-establish the LTE cell, send a request to the source LTE cell, the source LTE cell sends a handover cancel request to the MME after receiving the request, and the source LTE cell records that the UE fails to perform the ESRVCC handover once.
For the case of handover failure, in the prior art, there is a penalty mechanism of the source LTE cell for the UE and the target cell, and the penalty mechanism is generally in the following form: during the call, the UE may initiate an ESRVCC handover attempt to the same target cell again, and the source LTE cell allows the UE to continuously initiate x handover retries (x is a preset value) to the target cell; after x times, for the switching retry of the UE for the target cell in the call process, the source cell does not initiate a switching request to the target cell any more, so that the increase of the call drop rate caused by abnormal reasons is prevented.
However, the penalty mechanism is a point-to-point penalty, that is, only for a specific terminal and a specific target cell in the current call. For example, when x is 1, after the terminal UEa fails to perform the ESRVCC handover from the source LTE cell to the target cell M and establishes the source LTE cell again, the terminal UEa has a handover request opportunity to the target cell M in the call; however, in some sudden GSM low-access scenarios (for example, when a GSM jammer is turned on in an examination), multiple UEs such as UEb and UEc may exist, and a large number of ESRVCC handover requests to a target cell X with low access may be generated in a short time, so that radio resources are occupied, and channel congestion is caused; and at this time, because of the first request, the source LTE cell cannot reject, the MME and EMSC coordination resources are still found, and the source LTE cell is established back in the execution stage failure, which finally causes the opening of the handover penalty of the source LTE cell side of multiple UEs such as UEb and UEc, and affects the handover success rate of the ESRVCC.
Disclosure of Invention
The embodiment of the invention provides a cell switching control method and a base station, which are used for solving the problem that a punishment mechanism of ESRVCC switching failure in the prior art is easy to generate a large number of ESRVCC switching requests in a short time and influence the success rate of ESRVCC switching.
In one aspect, an embodiment of the present invention provides a cell handover control method, where the method is applied to a source cell, and the method includes:
when a failure switching-back request sent by a terminal is received, determining a target cell corresponding to the failure switching-back request; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure;
determining a number of requests corresponding to failed handoff requests of the target cell;
and when the request times reach a preset threshold value of the target cell, stopping forwarding the ESRVCC switching request aiming at the target cell.
In another aspect, an embodiment of the present invention provides a base station, where the base station includes:
the system comprises a receiving module, a judging module and a sending module, wherein the receiving module is used for determining a target cell corresponding to a failure switching-back request when the failure switching-back request sent by a terminal is received; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure;
a determining module for determining a number of requests corresponding to failed handoff requests of the target cell;
and the stopping module is used for stopping forwarding the ESRVCC switching request aiming at the target cell when the request times reach a preset threshold value of the target cell.
On the other hand, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, a bus, and a computer program stored in the memory and executable on the processor, where the processor implements the steps in the cell handover control method when executing the program.
In still another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the cell handover control method.
The cell switching control method and the base station provided by the embodiment of the invention determine the request times of all the failed back-cut requests corresponding to a target cell when receiving the failed back-cut request corresponding to the target cell sent by a terminal, start a punishment mechanism for the target cell when the request times reach a preset threshold value, stop forwarding the ESRVCC switching request aiming at the target cell, no longer allow any terminal to execute the ESRVCC switching to the target cell, realize the cell-level linkage punishment, avoid the situation that a plurality of different UEs in the coverage range of a source cell execute the ESRVCC switching and fail the switching for a plurality of times in a short time under the low-access scene of the target cell, and improve the success rate of the ESRVCC switching.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a cell handover control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first exemplary scenario in accordance with an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a second example of an embodiment of the present invention;
FIG. 4 is a method flow diagram of a second example of an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a flowchart of a cell handover control method according to an embodiment of the present invention.
As shown in fig. 1, a cell handover control method provided in the embodiment of the present invention is applied to a source cell, and the method specifically includes the following steps:
And the terminal is any terminal in the coverage range of the source cell. When executing the ESRVCC handover, if the handover fails, the terminal sends a failed handover request to the source cell, that is, a reestablishment request after the terminal fails to execute the ESRVCC handover, so as to reestablish the source cell.
After receiving the failed back-cut request of the terminal, the source cell determines a target cell corresponding to the failed back-cut request according to the failed back-cut request so as to determine the current accessibility condition of the target cell. The target cell is the target cell in the ESRVCC handover corresponding to the failed handover back request.
Typically, the source cell is an LTE cell and the target cell is a GSM cell.
Wherein, the failed handoff request in this step is a failed handoff request corresponding to the target cell, which is sent by any terminal in the coverage of the source cell, that is, the number of requests determined in this step is the number of requests of the failed handoff request corresponding to a specific target cell, and the initiating end of the failed handoff request is one or at least two UEs; i.e. a many-to-one relationship between the terminal and the target cell.
For example, when there are 4 UEs within the coverage of the source cell, which are a, b, c, and d, respectively, where a, b, and c send a failed handover request corresponding to the target cell e to the source cell, and d sends a failed handover request corresponding to the target cell f to the source cell; at this time, the sum of the numbers of failed handoff requests transmitted by a, b, and c is the number of requests corresponding to the failed handoff request of the target cell e, and the number of failed handoff requests transmitted by d is the number of requests corresponding to the failed handoff request of the target cell f.
Specifically, when the request number reaches (is greater than or equal to) a preset threshold of the target cell, it may be determined that the target cell is currently in a situation with low accessibility, at this time, a penalty mechanism is applied to the target cell, forwarding of the ESRVCC handover request for the target cell to the MME is stopped, and the ESRVCC handover procedure is stopped.
For example, for the target cell e, when the number of times of the request corresponding to the failed handover request of the target cell e has reached the preset threshold of the target cell e, and then the source cell receives the ESRVCC handover request from any terminal to the target cell e again, the source cell does not respond to the handover request and does not forward the handover request to the MME, so as to avoid that multiple different UEs within the coverage of the source cell perform ESRVCC handover and fail to perform the ESRVCC handover for multiple times in a short time under a low-access scenario of the target cell e, thereby affecting the success rate of the ESRVCC handover.
Optionally, the preset threshold of the target cell may be preset.
As a first example, referring to fig. 2, in a scenario diagram shown in fig. 2, an interaction diagram of a cell handover control method including a UE, a source cell, an MME and a target cell is shown; the method mainly comprises the following main processes:
the UE sends a measurement report to a source cell.
And the UE sends a measurement report to the source cell, wherein the measurement report carries the name or the identifier of the target cell.
2. The source cell forwards the ESRVCC handover request to the MME.
And 3, the MME sends an ESRVCC switching request to the target cell.
And 4, the UE fails to switch to the target cell.
And 5, the UE sends a failure switching back request to the source cell.
6. And when the request times reach a preset threshold value of the target cell, executing a punishment mechanism on the target cell, and stopping forwarding the ESRVCC switching request aiming at the target cell.
When a punishment mechanism is executed on the target cell, the source cell does not forward the handover request to the MME any more, so as to avoid that the success rate of the ESRVCC handover is influenced by the fact that a plurality of different UEs in the coverage area of the source cell execute the ESRVCC handover and fail the handover for a plurality of times in a short time under the low-access scene of the target cell.
In the above embodiment of the present invention, when receiving a failed back-cut request corresponding to a target cell sent by a terminal, determining the number of request times of all failed back-cut requests corresponding to the target cell, and when the number of request times reaches a preset threshold, starting a penalty mechanism for the target cell, stopping forwarding the ESRVCC handover request for the target cell, and no longer allowing any terminal to perform ESRVCC handover to the target cell, thereby implementing cell-level linkage penalty, avoiding a situation that multiple different UEs within a coverage area of a source cell perform ESRVCC handover and fail handover within a short time under a low-access scene, and improving the success rate of ESRVCC handover. The embodiment of the invention solves the problem that a punishment mechanism of ESRVCC switching failure in the prior art is easy to generate a large number of ESRVCC switching requests in a short time to influence the success rate of ESRVCC switching.
Optionally, in this embodiment of the present invention, the step of determining the number of times of requests of the failed handoff request corresponding to the target cell includes:
determining the request times of the failed handoff request corresponding to the target cell within a first preset time length.
Determining a time limit of the number of times of requests corresponding to the failed handoff request of the target cell as a first preset time length to improve accuracy of a result of determining the accessibility of the target cell, for example, if the first preset time length is a short time, ten minutes or fifteen minutes, and the like, if the number of times of requests exceeds a preset threshold, it may be determined that the accessibility of the target cell is poor; if the first preset duration is not set, the request times may be data in a longer time, and the result of determining whether the target cell is accessible loses referential.
Further, in this embodiment of the present invention, the step of determining the number of times of requests of the failed handover request corresponding to the target cell within the first preset time period includes:
starting a first timer aiming at the target cell, wherein the timing time of the first timer is the first preset time length;
determining a number of received requests corresponding to failed handoff requests of the target cell within a timing time of the first timer.
When a source LTE cell side receives a reestablishment request which is failed to be executed by a first UE aiming at an ESRVCC of a target cell, a first timer aiming at the target cell is started, wherein the first timer is used for limiting the counting time of the request times of the failed reconnection request so as to judge the accessibility of the target cell.
Alternatively, the timer is maintained for the source cell side and may be initially set to fifteen minutes.
After the first timer starts timing, the number of requests of failed switchback requests is counted (determined). And the counted failed handoff requests are the failed handoff requests which are sent by any terminal in the coverage of the source cell and correspond to the target cell.
Further, in this embodiment of the present invention, the step of determining the number of times of requests of the failed handover request corresponding to the target cell, which are received within the timing time of the first timer, includes:
starting a first counter for the target cell;
controlling the first counter to increment a count value by one each time a failed handoff request corresponding to the target cell is received;
and determining the request times according to the counting value of the first counter.
Wherein the first counter is started simultaneously when the first timer is started. The first counter is used for counting the request times of the failed switching back request. For example, within the timing time of the first timer, every time a failed handoff back request corresponding to the target cell is received, the count value of the first counter is incremented by one; the failed handoff back requests may be from different UEs but all correspond to the target cell.
For example, the target cell is an X cell, the first timer for the X cell is a timer a, the first counter for the X cell is a counter B, and when the timer a is started and every time a failed handover request for performing an ERSVCC handover to establish a source cell is received, the count value of the counter B is increased by 1.
And determining the request times according to the counting value of the first counter within the timing time of the first timer.
Optionally, in this embodiment of the present invention, after the step of determining the number of requests of the failed handover request corresponding to the target cell, the method further includes:
and when the request times do not reach the preset threshold value of the target cell, setting the counting number value of the first counter to zero.
That is to say, within the timing time of the first timer, when it is determined that the number of requests does not reach the preset threshold of the target cell according to the count value of the first counter, it may be determined that the target cell is not currently in a condition with low accessibility, and without executing a penalty mechanism, the count value of the first counter is set to zero, so that the first counter can normally operate when the first timer is started next time.
Optionally, in this embodiment of the present invention, after the step of when the number of requests reaches the preset threshold of the target cell, the method further includes:
and closing the first timer.
That is, if the number of requests has reached the preset threshold value when the timing time of the first timer has not ended (i.e., the first timer has not timed out), it may be determined that the target cell is currently in a condition with low accessibility, at this time, a penalty mechanism is applied to the target cell, and the first timer is turned off.
Optionally, in this embodiment of the present invention, the step of stopping forwarding the ESRVCC handover request for the target cell includes:
starting a second timer for the target cell;
stopping forwarding the handover request of the ESRVCC of the target cell within the timing time of the second timer.
In this step, when the number of requests reaches (is greater than or equal to) the preset threshold of the target cell, it may be determined that the target cell is currently in a situation with lower accessibility, at this time, a penalty mechanism is implemented for the target cell, a second timer for the target cell is started, and forwarding of an ESRVCC handover request for the target cell to an MME is stopped within the timing time of the second timer, so that an ESRVCC handover procedure is stopped within the timing time of the second timer, and in the timing time of the second timer, occurrence of situations where multiple different UEs within a coverage area of a source cell respectively perform ESRVCC handover for multiple times and handover fails can be effectively avoided, so as to improve an ESRVCC handover success rate.
Optionally, in this embodiment of the present invention, after the step of starting the second timer for the target cell, the method further includes:
starting a third timer for the target cell when the second timer times out;
and starting the second timer if a failed handoff request corresponding to the target cell is received within the timing time of the third timer.
When the second timer times out, the source cell may normally forward the ESRVCC handover request corresponding to the target cell, and at this time, start a third timer for the target cell to check whether a failed handover back request corresponding to the target cell is received again within a preset time period (i.e., a timing time of the third timer) after the second timer times out; and if the failed switching-back request corresponding to the target cell is received again, starting the second timer again, and stopping forwarding the switching request of the ESRVCC aiming at the target cell within the timing time of the second timer.
Further, in this embodiment of the present invention, the step of starting the second timer includes:
and starting the second timer, and increasing the current timing duration of the second timer by a preset value.
After the second timer is restarted, it indicates that the failed back-off requests corresponding to the current target cell are relatively dense, and the situation of low accessibility cannot be relieved under the condition of the timing duration of the second timer for one time, at this time, the current timing duration of the second timer is increased by a preset value, so as to optimize the timing duration of the second timer and improve the ESRVCC switching success rate.
In the above embodiment of the present invention, upon receiving a failed handoff request corresponding to a target cell sent by the terminal, a first timer for the target cell is started, determining the request times of all failed handoff requests corresponding to the target cell through a first counter within the timing time of a first timer, and starting a punishment mechanism for the target cell when the request times reach a preset threshold value, and in the timing time of the second timer, the forwarding of the ESRVCC switching request aiming at the target cell is stopped, any terminal is not allowed to execute the ESRVCC switching to the target cell any more, the cell-level linkage punishment is realized, the condition that a plurality of different UEs in the coverage range of the source cell execute the ESRVCC switching for a plurality of times and the switching fails in a short time under the condition that the target cell is in a low-access scene is avoided, and the success rate of the ESRVCC switching is improved.
Next, a cell handover control method according to an embodiment of the present invention is described as a second example.
Referring to fig. 3, in the scene diagram shown in fig. 3, the source cell is a source cell X, and the target cell is a target cell Y; in conjunction with fig. 4, the flowchart shown in fig. 4 is a flowchart of the method of the present example.
Specifically, the method flowchart shown in fig. 4 mainly includes the following steps:
in step 401, when the source cell X receives the failed handoff request from the terminal U1, it is determined that the target cell corresponding to the failed handoff request is the target cell Y.
When the source cell X side receives the failed handoff request from the first terminal U1, it determines that the target GSM cell corresponding to the failed handoff request is the target cell Y.
In step 402, a timer a and a counter B for the target cell Y are started.
The method comprises the steps of starting a timer A for judging whether a target cell Y can be accessed, wherein the timer A is maintained on the source cell side, the initial time can be set to 15 minutes, and simultaneously starting a counter B for judging whether the target cell Y can be accessed. When the timer a is started, the counter B is incremented by 1 each time a failed handover request is received from any terminal (which may be any one of the terminal U1, the terminal U2.
if yes, go to step 404;
otherwise, step 405 is executed, the timer a is stopped, and the next time the ERSVCC handover execution phase fails, the method is started again.
Wherein, the timer C is a penalty timer. The penalty timer is not overtime, the source cell X side ignores all received ESRVCC switching requests aiming at the target cell Y, and the ESRVCC switching requests are not forwarded to the MME side.
Wherein, the timer D is the check timer. And starting when the timer C stops, and checking whether a failed handoff request for the target cell Y is received again within a preset time period when the timer C stops.
In the timing time of the timer D, once the source cell X receives the failed handover request of the target cell Y again, the timer D is stopped, and the timing time of the timer C is automatically adjusted, for example, the timer time is increased by 2 minutes on the original basis.
While the timer a and the counter B are started again.
In the second example of the invention, when a failed back-cut request corresponding to a target cell Y sent by a terminal is received, a timer A corresponding to the target cell Y is started, the request times of all the failed back-cut requests corresponding to the target cell Y are determined by a counter B within the timing time of the timer A, a penalty mechanism for the target cell is started when the request times reach a preset threshold, forwarding of an ESRVCC handover request aiming at the target cell Y is stopped within the timing time of the timer C, no terminal is allowed to perform the ESCC handover to the target cell any more, cell-level linkage penalty and autonomous judgment of whether an opposite terminal GSM cell possibly has a low-access condition by a source cell X are realized, the situation that a plurality of different UEs within the coverage range of the source cell respectively perform the ESCC handover and fail the handover is avoided within a short time when the target cell is in the low-access scene, the possibility of steep decline of the success rate of the ESRVCC switching caused by burst GSM low access is reduced.
The cell switching control method provided by the embodiment of the present invention is described above, and a base station provided by the embodiment of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 5, an embodiment of the present invention provides a base station 500, where the base station 500 includes:
a receiving module 501, configured to determine a target cell corresponding to a failed handoff request when receiving the failed handoff request sent by a terminal; the failure switch-back request is a switch-back request after the terminal fails to execute the enhanced single wireless voice call continuity (ESRVCC) switch.
And the terminal is any terminal in the coverage range of the source cell. When executing the ESRVCC handover, if the handover fails, the terminal sends a failed handover request to the source cell, that is, a reestablishment request after the terminal fails to execute the ESRVCC handover, so as to reestablish the source cell.
After receiving the failed handoff request of the terminal, the receiving module 501 determines a target cell corresponding to the failed handoff request according to the failed handoff request, so as to determine the current accessibility condition of the target cell. The target cell is the target cell in the ESRVCC handover corresponding to the failed handover back request.
Typically, the source cell is an LTE cell and the target cell is a GSM cell.
A determining module 502 for determining a number of requests corresponding to failed handoff requests of the target cell.
Wherein, the failed handoff request is a failed handoff request corresponding to the target cell and sent by any terminal in the coverage of the source cell, that is, the request times determined by the determining module 502 are the request times of the failed handoff request corresponding to a specific target cell, and the initiating end of the failed handoff request is one or at least two UEs; i.e. a many-to-one relationship between the terminal and the target cell.
A stopping module 503, configured to stop forwarding the ESRVCC handover request for the target cell when the number of requests reaches a preset threshold of the target cell.
Specifically, when the number of requests reaches (is greater than or equal to) the preset threshold of the target cell, it may be determined that the target cell is currently in a situation with low accessibility, at this time, a penalty mechanism is applied to the target cell, and the stopping module 503 stops forwarding the ESRVCC handover request for the target cell to the MME, so that the ESRVCC handover procedure is stopped.
For example, for the target cell e, when the number of times of the request corresponding to the failed handover request of the target cell e has reached the preset threshold of the target cell e, and then the source cell receives the ESRVCC handover request from any terminal to the target cell e again, the source cell does not respond to the handover request and does not forward the handover request to the MME, so as to avoid that multiple different UEs within the coverage of the source cell perform ESRVCC handover and fail to perform the ESRVCC handover for multiple times in a short time under a low-access scenario of the target cell e, thereby affecting the success rate of the ESRVCC handover.
Optionally, in this embodiment of the present invention, the determining module 502 includes:
and the determining submodule determines the request times of the failed handoff request corresponding to the target cell within a first preset time length.
Optionally, in this embodiment of the present invention, the determining sub-module includes:
a first starting unit, configured to start a first timer for the target cell, where a timing time of the first timer is the first preset duration;
a first determining unit, configured to determine the number of received requests corresponding to failed handoff requests of the target cell within a timing time of the first timer.
Optionally, in this embodiment of the present invention, the first determining unit is configured to:
starting a first counter for the target cell;
controlling the first counter to increment a count value by one each time a failed handoff request corresponding to the target cell is received;
and determining the request times according to the counting value of the first counter.
Optionally, in this embodiment of the present invention, the stopping module 503 includes:
a first starting submodule, configured to start a second timer for the target cell;
a stopping submodule, configured to stop forwarding the handover request of the ESRVCC for the target cell within the timing time of the second timer.
Optionally, in this embodiment of the present invention, after the step of starting the second timer for the target cell, the base station 500 further includes:
the second starting submodule is used for starting a third timer aiming at the target cell when the second timer is over time;
and a third starting submodule, configured to start the second timer if a failed handoff back request corresponding to the target cell is received within a time period timed by the third timer.
Optionally, in this embodiment of the present invention, the third starter sub-module is configured to:
and starting the second timer, and increasing the current timing duration of the second timer by a preset value.
In the above embodiment of the present invention, when the receiving module 501 receives a failed back-cut request corresponding to a target cell sent by a terminal, the determining module 502 determines the request times of all failed back-cut requests corresponding to the target cell, and when the request times reach a preset threshold, a penalty mechanism for the target cell is started, the stopping module 503 stops forwarding the ESRVCC switch request for the target cell, and no longer allows any terminal to execute ESRVCC switch to the target cell, thereby implementing cell-level linkage penalty, avoiding a situation that multiple different UEs within a coverage area of a source cell execute ESRVCC switch and fail to switch for multiple times in a short time when the target cell is in a low-access scene, and improving the success rate of ESRVCC switch. The embodiment of the invention solves the problem that a punishment mechanism of ESRVCC switching failure in the prior art is easy to generate a large number of ESRVCC switching requests in a short time to influence the success rate of ESRVCC switching.
Fig. 6 is a schematic structural diagram of an electronic device according to yet another embodiment of the present invention.
Referring to fig. 6, an embodiment of the present invention provides an electronic device, which includes a memory (memory)61, a processor (processor)62, a bus 63, and a computer program stored in the memory 61 and running on the processor. The memory 61 and the processor 62 complete communication with each other through the bus 63.
The processor 62 is used to call the program instructions in the memory 61 to implement the method of fig. 1 when executing the program.
In another embodiment, the processor, when executing the program, implements the method of:
when a failure switching-back request sent by a terminal is received, determining a target cell corresponding to the failure switching-back request; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure;
determining a number of requests corresponding to failed handoff requests of the target cell;
and when the request times reach a preset threshold value of the target cell, stopping forwarding the ESRVCC switching request aiming at the target cell.
The electronic device provided in the embodiment of the present invention may be configured to execute a program corresponding to the method in the foregoing method embodiment, and details of this implementation are not described again.
The electronic device provided by the embodiment of the invention realizes that when a failed back-cut request corresponding to a target cell sent by a terminal is received, the processor executes the program, the penalty mechanism for the target cell is started by determining the request times of all the failed back-cut requests corresponding to the target cell and when the request times reach a preset threshold value, the forwarding of the ESRVCC switching request for the target cell is stopped, any terminal is not allowed to execute the ESRVCC switching to the target cell any more, the cell-level linkage penalty is realized, the situations that a plurality of different UEs in the coverage area of a source cell execute the ESRVCC switching and the switching fails for a plurality of times in a short time under the condition that the target cell is in a low-access scene are avoided, and the ESRVCC switching success rate is improved.
A non-transitory computer readable storage medium is provided according to a further embodiment of the present invention, having a computer program stored thereon, which when executed by a processor implements the steps of fig. 1.
In another embodiment, the program when executed by a processor implements a method comprising:
when a failure switching-back request sent by a terminal is received, determining a target cell corresponding to the failure switching-back request; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure;
determining a number of requests corresponding to failed handoff requests of the target cell;
and when the request times reach a preset threshold value of the target cell, stopping forwarding the ESRVCC switching request aiming at the target cell.
In the non-transitory computer-readable storage medium provided in the embodiment of the present invention, when the program is executed by the processor, the method in the above-described method embodiment is implemented, and details of this implementation are not described again.
The non-transitory computer readable storage medium provided in the embodiment of the present invention, when receiving a failed back-cut request corresponding to a target cell sent by a terminal, starts a penalty mechanism for the target cell by determining the request times of all failed back-cut requests corresponding to the target cell and when the request times reach a preset threshold, stops forwarding the ESRVCC handover request for the target cell, and no longer allows any terminal to perform ESRVCC handover to the target cell, thereby implementing cell-level linkage penalty, avoiding a situation that multiple different UEs within a coverage area of a source cell perform ESRVCC handover and fail to handover in a short time when the target cell is in a low-access scenario, and improving the success rate of ESRVCC handover.
Yet another embodiment of the present invention discloses a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-mentioned method embodiments, for example, comprising:
when a failure switching-back request sent by a terminal is received, determining a target cell corresponding to the failure switching-back request; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure;
determining a number of requests corresponding to failed handoff requests of the target cell;
and when the request times reach a preset threshold value of the target cell, stopping forwarding the ESRVCC switching request aiming at the target cell.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A cell switching control method is applied to a source cell, and is characterized by comprising the following steps:
when a failure back-cut request sent by any terminal in the coverage of the source cell is received, determining a target cell corresponding to the failure back-cut request; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure;
determining a number of requests corresponding to failed handoff requests of the target cell;
when the request times reach a preset threshold value of the target cell, stopping forwarding the ESRVCC switching request aiming at the target cell;
the step of stopping forwarding the ESRVCC handover request for the target cell includes:
starting a second timer for the target cell;
stopping forwarding the switching request of the ESRVCC aiming at the target cell within the timing time of the second timer;
after the step of starting the second timer for the target cell, the method further comprises:
when the second timer is overtime, forwarding an ESRVCC switching request aiming at the target cell, and starting a third timer aiming at the target cell;
within the timing time of the third timer, if a failed handoff back request corresponding to the target cell is received, starting the second timer;
the step of starting the second timer includes:
and starting the second timer, and increasing the current timing duration of the second timer by a preset value.
2. The method of claim 1, wherein the step of determining the number of requests corresponding to the failed handoff request of the target cell comprises:
determining the request times of the failed handoff request corresponding to the target cell within a first preset time length.
3. The method of claim 2, wherein the step of determining the number of requests corresponding to the failed handoff request of the target cell within a first preset time period comprises:
starting a first timer aiming at the target cell, wherein the timing time of the first timer is the first preset time length;
determining a number of received requests corresponding to failed handoff requests of the target cell within a timing time of the first timer.
4. The method of claim 3, wherein the step of determining the number of received requests corresponding to the failed handoff request of the target cell within the timing time of the first timer comprises:
starting a first counter for the target cell;
controlling the first counter to increment a count value by one each time a failed handoff request corresponding to the target cell is received;
and determining the request times according to the counting value of the first counter.
5. A base station, characterized in that the base station comprises:
the system comprises a receiving module, a judging module and a sending module, wherein the receiving module is used for determining a target cell corresponding to a failure switching-back request when the failure switching-back request sent by any terminal in a source cell coverage range is received; the failure back-cut request is a back-built request after the terminal executes the enhanced single wireless voice call continuity (ESRVCC) switching execution failure;
a determining module for determining a number of requests corresponding to failed handoff requests of the target cell;
a stopping module, configured to stop forwarding the ESRVCC handover request for the target cell when the number of requests reaches a preset threshold of the target cell;
the step of stopping forwarding the ESRVCC handover request for the target cell includes:
starting a second timer for the target cell;
stopping forwarding the switching request of the ESRVCC aiming at the target cell within the timing time of the second timer;
after the step of starting the second timer for the target cell, the method further includes:
when the second timer is overtime, forwarding an ESRVCC switching request aiming at the target cell, and starting a third timer aiming at the target cell;
within the timing time of the third timer, if a failed handoff back request corresponding to the target cell is received, starting the second timer;
the step of starting the second timer includes:
and starting the second timer, and increasing the current timing duration of the second timer by a preset value.
6. An electronic device, comprising a memory, a processor, a bus, and a computer program stored on the memory and executable on the processor, the processor implementing the steps in the cell handover control method according to any of claims 1-4 when executing the program.
7. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that: the program when executed by a processor implements the steps in the cell handover control method according to any of claims 1-4.
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| WO2022028230A1 (en) * | 2020-08-06 | 2022-02-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for reestablishment of connection between terminal device and network |
| CN114079989A (en) * | 2020-08-21 | 2022-02-22 | 中兴通讯股份有限公司 | Method for processing failure cause value, electronic device and computer readable storage medium |
| CN113825197B (en) * | 2021-10-18 | 2024-06-04 | 四川酷比通信设备有限公司 | Card switching method and system based on network quality |
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| CN100518368C (en) * | 2005-08-08 | 2009-07-22 | 中兴通讯股份有限公司 | Switch penalty method of radio digital communication system |
| CN101534536B (en) * | 2008-03-13 | 2012-09-05 | 中兴通讯股份有限公司 | Method for indicating switch reasons |
| CN101841835B (en) * | 2009-03-17 | 2012-12-19 | 电信科学技术研究院 | Switching optimization method, equipment and system |
| CN101873655B (en) * | 2009-04-24 | 2015-06-03 | 中兴通讯股份有限公司 | Method and device for processing radio link failure in the process of switching user terminal |
| CN102209338B (en) * | 2011-06-10 | 2014-12-10 | 北京邮电大学 | Switching self-optimizing method for mobile communication network |
| US9445319B2 (en) * | 2013-02-14 | 2016-09-13 | Lg Electronics Inc. | Method and apparatus for controlling and resolving a handover failure when a dynamic cell off is occurred in wireless access system |
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| US9749910B2 (en) * | 2013-07-19 | 2017-08-29 | Lg Electronics | Method and apparatus for transmitting user equipment group information in wireless communication system |
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| CN105282769A (en) * | 2014-06-06 | 2016-01-27 | 中兴通讯股份有限公司 | Network switching processing method and device |
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| WO2017079908A1 (en) * | 2015-11-11 | 2017-05-18 | Qualcomm Incorporated | Systems and methods for preventing single radio voice call continuity failure during the voice over long term evolution call bearer setup phase |
| CN107666695B (en) * | 2016-07-27 | 2020-11-20 | 中兴通讯股份有限公司 | Network switching method and device |
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