Method, system, electronic device and storage medium for controlling ping-pong switching

Abstract

The present disclosure provides a method, system, electronic device, and storage medium for controlling ping-pong handovers to address the issue of ping-pong handovers between different cells caused by voice quality-based handovers. The method includes: when a UE is performing voice service in a high-priority cell, and the voice service quality reaches a handover start measurement threshold before the coverage frequency value, if the terminal undergoes an inter-system handover, determining whether the frequency value of the high-priority cell after the terminal handover meets a preset condition before reestablishing the terminal's voice service; if so, increasing the duration of voice service reestablishment after the terminal's inter-system handover. The present disclosure can effectively control the number of ping-pong handovers between different cells, effectively ensuring voice user experience when moving across inter-system boundaries.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method for controlling ping-pong switching, a system for controlling ping-pong switching, an electronic device, and a computer-readable storage medium. Background Art

[0002] A voice quality-based handover strategy is a handover strategy designed to ensure user voice perception. After voice quality-based handover is enabled, when a UE (User Equipment, user equipment, or terminal) moves from a 5G coverage area to a 4G coverage area, if the UE's voice service packet loss rate (5QI1 uplink packet loss rate) in the local cell (5G) precedes the coverage frequency and reaches the measurement threshold, the inter-system cell decision measurement is initiated. If the inter-system (4G) cell meets the decision threshold B1, the UE will be handed over to the target low-priority cell (4G cell) based on voice quality. At this time, the coverage frequency value of the original high-priority cell may still be good. Since the UE has been handed over and is currently residing in a low-priority cell, if the frequency value of the original high-priority cell has not deteriorated below the decision threshold for switching from low priority to high priority, the UE will be switched back to the original high-priority cell (5G cell) based on periodic measurements. This cycle causes ping-pong handovers between different cells, seriously affecting voice service perception. Summary of the Invention

[0003] In order to at least solve the technical problem in the prior art of ping-pong switching of terminals between different cells due to voice quality switching, the present disclosure provides a method for controlling ping-pong switching, a system for controlling ping-pong switching, an electronic device and a computer-readable storage medium, which can effectively control the number of ping-pong switches of terminals between different cells and effectively ensure the voice perception of users of voice services when moving across the boundaries of different systems.

[0004] In a first aspect, the present disclosure provides a method for controlling ping-pong switching, the method comprising:

[0005] When a UE is performing voice services in a high-priority cell and the voice service quality reaches the handover start measurement threshold before the coverage frequency value, if the terminal undergoes an inter-system handover, the system determines whether the frequency value on the high-priority cell side after the terminal handover meets the preset conditions before the terminal's voice service is reestablished.

[0006] If the requirements are met, the time required to reestablish the voice service after the terminal switches to another system is increased.

[0007] Furthermore, the method further comprises:

[0008] After the terminal establishes a voice service in the low-priority cell, it determines whether the frequency value on the high-priority cell side meets the preset conditions;

[0009] If the conditions are met, the GAP (gap) duration of periodic measurement of the high-priority cell's electrical frequency will be increased.

[0010] Furthermore, the method further comprises:

[0011] The increased voice service reestablishment duration and the increased periodic measurement GAP duration of the high-priority cell frequency are set according to the number of inter-system handovers of the terminal.

[0012] Furthermore, the preset conditions include:

[0013] If the terminal switches to a low-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the periodic measurement threshold for coverage-based switching on the low-priority cell side to the high-priority cell side;

[0014] If the terminal switches to a high-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the measurement threshold for switching from the high-priority cell side to the low-priority cell side based on coverage.

[0015] Furthermore, the method further comprises:

[0016] After the terminal establishes a voice service in the high-priority cell, it determines whether the frequency value of the high-priority cell side is greater than the measurement threshold for coverage-based switching to the low-priority cell side on the high-priority cell side;

[0017] If so, the terminal performs inter-system handover based on voice quality, and after handover, determines again whether the frequency value of the high-priority cell side after the terminal handover meets the preset conditions;

[0018] If not, the terminal performs inter-system handover based on coverage and resides in a low-priority cell.

[0019] In a second aspect, the present disclosure provides a system for controlling ping-pong switching, wherein the system includes:

[0020] A judgment module is configured to determine whether the frequency value of the high-priority cell after the terminal handover meets a preset condition before the terminal voice service is reestablished, when the UE is performing voice service in the high-priority cell and the voice service quality reaches the handover start measurement threshold before the coverage frequency value, if the terminal undergoes an inter-system handover;

[0021] The delay module is configured to increase the voice service reconstruction time after the terminal switches to another system if the judgment module determines that the electric frequency value on the high priority cell side meets the preset conditions.

[0022] Further,

[0023] The judgment module is further configured to judge whether the electric frequency value on the high-priority cell side meets a preset condition after the terminal establishes a voice service in the low-priority cell;

[0024] The delay module is further configured to increase the GAP duration of periodically measuring the electrical frequency of the high priority cell if the second judgment module determines that the electrical frequency value on the high priority cell side meets a preset condition.

[0025] Furthermore, the delay module is specifically configured as follows:

[0026] The increased voice service reestablishment duration and the increased periodic measurement GAP duration of the high-priority cell frequency are set according to the number of inter-system handovers of the terminal.

[0027] In a third aspect, the present disclosure provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program. When the processor runs the computer program stored in the memory, the processor executes the method for controlling ping-pong switching as described in any one of the first aspects.

[0028] In a fourth aspect, the present disclosure provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for controlling ping-pong switching described in any one of the first aspects above is implemented.

[0029] Beneficial effects:

[0030] The method for controlling ping-pong switching, the system for controlling ping-pong switching, the electronic device, and the storage medium provided by the present disclosure prolong the reconstruction time of voice services based on the electric frequency value on the high-priority cell side, thereby reducing the number of ping-pong switching of UEs between different systems when the voice quality-based switching function is enabled, and effectively ensuring the voice perception of users of voice services when moving across the boundary of different systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the inter-system handover process based on voice quality;

[0032] Figure 2 A flowchart of a method for controlling ping-pong switching provided in the first embodiment of the present disclosure;

[0033] Figure 3 A schematic diagram of determining the electrical frequency value during a UE handover process provided in the first embodiment of the present disclosure;

[0034] Figure 4 This is an architectural diagram of a system for controlling ping-pong switching provided in the second embodiment of the present disclosure;

[0035] Figure 5This is an architectural diagram of an electronic device provided in Example 4 of the present disclosure. DETAILED DESCRIPTION

[0036] To enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments and drawings described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; and, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be arbitrarily combined with each other.

[0038] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms "a," "an," "the," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0039] In the subsequent description, suffixes such as "module," "component," or "unit" used to represent elements are used only to facilitate the description of the present disclosure and have no specific meaning. Therefore, "module," "component," or "unit" may be used interchangeably.

[0040] When a terminal performs cell handover, it can be divided into coverage-based handover strategies and voice quality-based handover strategies;

[0041] Coverage-based handover is divided into inter-frequency handover and inter-system handover. Handover within the same standard network is achieved through inter-frequency handover. Handover between different standard networks is achieved through inter-system handover.

[0042] (1) Inter-frequency handover: If two carriers within the system have the same priority, the A2+A3 method is used to ensure load balancing between the carriers. If the two carriers have different priorities, when switching from a high priority to a low priority, the A2+A4 or A2+A5 method is used. That is, the handover is triggered only when the cell level of the high priority carrier is below a certain threshold and the cell level of the low priority carrier is above a certain threshold. When switching from a low priority to a high priority, a periodic triggering method is used to implement periodic measurement of the high priority carrier.

[0043] (2) Inter-system handover: Handover from high priority to low priority (e.g., handover from 5G to 4G) is achieved by using the A2 + B1 method. That is, only when the signal strength of the original high-priority cell is lower than a certain threshold and the signal strength of the target low-priority cell is higher than a certain threshold, the handover process from high priority to low priority is triggered. Handover from low priority to high priority (e.g., handover from 4G to 5G) is achieved by using the periodically triggered B1 method. That is, as long as the signal strength of the target high-priority cell is higher than a certain threshold, the handover process from low priority to high priority is triggered.

[0044] The specific meanings of each handover event are shown in Table 1 below:

[0045]

[0046] Since only one voice service can be carried out in the same radio access network, the existing network's voice quality-based handover strategy is only meaningful when deployed during inter-system handover. During inter-system handover, the signal strength of the currently camped cell and the voice service packet loss rate (5QI1 uplink packet loss rate) are measured simultaneously. When (1) the voice service packet loss rate (5QI1 uplink packet loss rate) of the UE > the packet loss rate threshold for inter-system handover based on voice quality, and (2) the signal strength value of the UE in the current cell < the A2 threshold; when either of these two conditions is met, the base station sends the B1 measurement event for the inter-system cell. At this time, if the signal strength value of the target cell meets the requirements, the UE switches to the inter-system cell based on voice quality.

[0047] The specific process of handover based on voice quality:

[0048] As Figure 1 shown, when the UE is making a voice call on 5G and then handovers to 4G based on voice quality, there is a voice service reconstruction time on 4G (usually 5s). After the voice service is reconstructed on 4G, the UE will start periodic measurements from 4G to 5G (usually 40s for each measurement), and the duration of the two measurement GAPs is generally 10s. After the UE handovers from 5G to 4G based on voice quality and reconstructs the voice service, periodic measurements from 4G to 5G are started.

[0049] When the UE handovers to the target low-priority cell based on voice quality, and the signal strength of the original high-priority cell has not deteriorated below the decision threshold for handover from low priority to high priority at this time, the UE will then handover back to the original high-priority cell based on periodic measurements, resulting in ping-pong handovers between different cells, seriously affecting the voice service experience.

[0050] The following is a detailed description of the technical solutions of the present invention and how the technical solutions of the present invention solve the above-mentioned technical problems in the prior art with specific embodiments. It will be understood that in the embodiments of the present application, the execution subject may perform some or all of the steps in the embodiments of the present application, and these steps or operations are merely examples. The embodiments of the present application may also perform other operations or variations of various operations. In addition, the various steps may be performed in different orders as presented in the embodiments of the present application, and it may not be necessary to perform all the operations in the embodiments of the present application. Furthermore, the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in certain embodiments.

[0051] Figure 2 A method for controlling ping-pong switching is provided in the first embodiment of the present disclosure, such as Figure 2 As shown, the method includes:

[0052] Step S101: When the UE is performing voice service in a high-priority cell and the voice service quality reaches the handover start measurement threshold before the coverage frequency value, if the terminal undergoes inter-system handover, before the terminal voice service is reestablished, it is determined whether the frequency value of the high-priority cell side after the terminal handover meets the preset conditions;

[0053] Step S102: If the conditions are met, then the voice service reestablishment time after the terminal switches to another system is increased.

[0054] One application of the disclosed embodiments is that a UE performs a VoNR (Voice over New Radio) voice service in a 5G coverage area and slowly moves from the 5G coverage area to the 4G coverage area. At this time, the 5G voice service quality (5QI1 uplink packet loss rate) gradually deteriorates. At the same time, the 5G coverage frequency value also gradually deteriorates. The high-priority cell is the cell on the 5G side, and the low-priority cell is the cell on the 4G side.

[0055] First, define the relevant threshold parameters in advance:

[0056] The threshold for switching from 5G to 4G based on voice quality (5QI1 uplink service packet loss rate) is R 5-4 ;

[0057] 5G coverage-based switching to 4G measurement threshold (5G frequency value) A 2(5-4) ;

[0058] 5G coverage-based switching to 4G decision threshold (4G frequency value) B 1(5-4) ;

[0059] Periodic measurement threshold for 4G coverage-based switching to 5G (5G frequency value) B 1(4-5) ;

[0060] And define the parameters:

[0061] Frequency difference D1 = 5G RSRP-B 1(4-5) (5G RSRP is the frequency value on the 5G side after the UE switches from 5G to 4G);

[0062] Frequency difference D2 = 5G RSRP-A 2(5-4) (5G RSRP is the frequency value on the 5G side before the UE switches from 5G to 4G).

[0063] 5G voice service quality takes precedence over 5G coverage. The frequency value reaches the switching start measurement threshold R. 5-4 , that is, the 5G 5QI1 uplink service packet loss rate R>R 5-4 , then start the heterogeneous system switching decision measurement, and at this time the heterogeneous system frequency value RSRP 4G >B 1(5-4) , the UE switches from 5G to 4G; at this time, an inter-system handover occurs, and the number of handovers is 1.

[0064] After the UE switches to 4G, before the terminal voice service is reestablished, it is determined whether the frequency value of the high-priority cell side after the terminal switching meets the preset conditions. If the frequency value on the 5G side is still good and meets the preset conditions, that is, the frequency coverage of the high-priority cell is higher than a certain threshold, it will trigger the switching process from low priority to high priority, then the 4G voice service establishment delay will be extended, and the voice service will be rebuilt. During the reconstruction process, the frequency value on the 5G side will continue to decrease due to reasons such as terminal movement, which will lengthen the voice establishment time and reduce the frequency value on the 5G side more, thereby reducing the number of ping-pong switches between different systems of the terminal. After voice reconstruction, after the voice service is established on 4G, the terminal will start periodic measurement from 4G to 5G and determine the frequency difference D1. If D1<0, the UE will continue to perform periodic measurement on the original 5G. If D1>0, the UE will switch back to the original 5G. After the UE switches back to the original 5G, before the terminal voice service is reestablished, it is determined again whether the electric frequency value on the high-priority cell side after the terminal switching meets the preset conditions; that is, at this time, it is determined whether the electric frequency value on the 5G side still does not meet the conditions for inter-system switching based on coverage, and the electric frequency value on the 5G side has not deteriorated to a certain extent, then the voice establishment time on the 5G side is prolonged, and the prolonged time can be fixed to a certain value or change dynamically. The terminal achieves inter-system switching based on coverage, and after switching to the 4G side cell, it will not switch again based on periodic measurements. The preset conditions are different depending on the system to which the terminal switches.

[0065] Furthermore, the preset conditions include:

[0066] If the terminal switches to a low-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the periodic measurement threshold for coverage-based switching on the low-priority cell side to the high-priority cell side;

[0067] If the terminal switches to a high-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the measurement threshold for switching from the high-priority cell side to the low-priority cell side based on coverage.

[0068] That is, when it is in the 4G side cell, the preset condition is D1>0, and when it is in the 5G side cell, the preset condition is D2>0. By judging the difference between the original high-priority (5G) cell and the periodic measurement threshold B1 for switching from low priority to high priority after switching from 5G to 4G cell, it is judged whether the terminal will switch again; and the difference between the original high-priority (5G) cell frequency value and the coverage-based switching measurement threshold A2 for switching from high priority to low priority; to judge whether the terminal is still switching based on voice quality (rather than switching based on coverage), thereby lengthening the waiting time for voice service establishment after switching from high priority cell to low priority cell, and the waiting time for voice service establishment after low priority is switched back to high priority; effectively preventing users from ping-pong switching.

[0069] Furthermore, the method further comprises:

[0070] After the terminal establishes a voice service in the low-priority cell, it determines whether the frequency value on the high-priority cell side meets the preset conditions;

[0071] If the conditions are met, the GAP (gap) duration of periodic measurement of the high-priority cell's electrical frequency will be increased.

[0072] After establishing voice service on 4G, periodic measurement from 4G to 5G is started and the frequency difference D1 is determined. (1) If D1 < 0, the UE continues to perform periodic measurement on the original 5G. (2) If D1 > 0, the UE switches back to the original 5G and lengthens the periodic measurement GAP. By further lengthening the GAP duration of periodic measurement of the frequency of the high-priority cell, the 5G frequency value is lower after the terminal switches back to the 5G side cell, thereby reducing the probability of the UE switching back to 4G based on voice quality.

[0073] Furthermore, the method further comprises:

[0074] The increased voice service reestablishment duration and the increased periodic measurement GAP duration of the high-priority cell frequency are set according to the number of inter-system handovers of the terminal.

[0075] Define the number of different system switching as n; then set:

[0076] The time for voice reestablishment after the UE switches to 4G is T1 = 5 + 2.5n (n is the number of inter-system handovers);

[0077] The GAP time period measured periodically by the UE on 4G is T2 = 10 + 5n (n is the number of handovers between different systems);

[0078] The time for the UE to switch to 5G for voice reestablishment is T3=4+2n (n is the number of handovers between different systems); the unit is seconds.

[0079] The increased voice service reconstruction time and the increased periodic measurement GAP time of the high-priority cell frequency are set according to the number of switching times. The more switching times, the longer the increased time, thereby reducing the number of inter-system switching times of the terminal.

[0080] Furthermore, the method further comprises:

[0081] After the terminal establishes a voice service in the high-priority cell, it determines whether the frequency value of the high-priority cell side is greater than the measurement threshold for coverage-based switching to the low-priority cell side on the high-priority cell side;

[0082] If so, the terminal performs inter-system handover based on voice quality, and after the handover, it is determined again whether the frequency value of the high-priority cell side after the terminal handover meets the preset conditions;

[0083] If not, the terminal performs inter-system handover based on coverage and resides in a low-priority cell.

[0084] The UE's decision during the handover process is as follows: Figure 3 As shown, when the UE just switches from 5G to 4G, it immediately determines the frequency difference D1 = 5G RSRP-B 1(5-4) If (a) D1 < 0, the UE stays on 4G for 5 seconds to reestablish the voice service, and then periodically measures the original 5G. (b) If D1 > 0, the number of handovers, n, is substituted into T1 = 5 + 2.5n to extend the UE's 4G voice service establishment delay, and then reestablish the 4G voice service.

[0085] After the UE establishes a voice service on 4G, it determines the frequency difference D1 again. (1) If D1 < 0, the UE continues to perform periodic measurements on the original 5G. (2) If D1 > 0, the UE switches back to the original 5G and sets n to T2 = 10 + 5n, thereby lengthening the periodic measurement GAP.

[0086] After the UE switches back to the original 5G, it immediately determines the frequency difference D2 = RSRP-A 2(5-4) , (1) D2 < 0, the UE stays on 5G to reestablish the voice service, and then switches back to 4G based on coverage. (2) D2 > 0, then substitute n into T3 = 4 + 2n to extend the 5G voice service establishment time, and then reestablish the voice service. This will wait for the 5G frequency value to decrease further, thereby reducing the probability of the UE switching back to 4G based on voice quality.

[0087] After 5G voice service is established, D2 is measured again. If D2 > 0, the UE switches back to 4G based on voice quality and re-determines the frequency difference D1. The above steps are repeated. If D2 < 0, the terminal performs an inter-system handover based on coverage and resides in a lower-priority cell. By extending the 4 / 5G voice establishment delay and the GAP delay periodically measured by the UE on 4G, the number of UE ping-pong handovers between 4G and 5G is reduced.

[0088] The embodiment of the present disclosure analyzes the overall switching process of the UE after the introduction of the switching strategy based on voice quality, and defines three different delays in the switching process: T1, T2, and T3. Including 4G Volte (Voice over LTE, high-definition telephone service) voice establishment delay, UE periodically measures GAP delay at low priority; 5G VoNR voice establishment delay. Two electrical frequency differences are defined: D1 and D2, which are used to determine the difference and specify the next action of the UE accordingly when the UE switches the voice service to another system. By monitoring the two electrical frequency differences, the number of switches and other related parameters, each step of the UE switching process is specified, and the three different delays are lengthened, thereby reducing the number of ping-pong switches between different systems of the UE when the voice quality-based switching function is turned on.

[0089] In order to more clearly describe the technical solution of the present disclosure, the second embodiment of the present disclosure further provides a method for controlling ping-pong switching, the specific process of which is as follows:

[0090] Assign values to relevant threshold parameters:

[0091] The threshold for switching from 5G to 4G based on voice quality (5QI1 uplink service packet loss rate) is R 5-4 =20%;

[0092] 5G coverage-based switching to 4G measurement threshold (5G frequency value) A 2(5-4) =-115dBm;

[0093] 5G coverage-based switching to 4G decision threshold (4G frequency value) B 1(5-4) =-110dBm;

[0094] Periodic measurement threshold for 4G coverage-based switching to 5G (5G frequency value) B 1(4-5) =-103dBm;

[0095] The UE moves in the continuous 5G coverage area and performs VoNR voice services. The UE slowly moves to the 4 / 5G coverage boundary area. At this time, the 5G frequency value gradually decreases, and the 5QI1 uplink service packet loss rate also gradually decreases.

[0096] Case 1: The time when the 5G electric frequency value fades to -115dBm is earlier than the time when 5QI1 drops to 20%, then the UE switches to 4G based on coverage, and the UE normally starts periodic measurement to 5G on 4G. During this process, the electric frequency difference judgment is not started.

[0097] Case 2:

[0098] (1) If the time when the 5G frequency value decays to -115dBm is later than the time when 5QI1 decreases to 20%, the UE switches to 4G based on the voice quality, and the number of switching times n=1.

[0099] (2) After the UE switches from 5G to 4G based on voice quality, it measures 5G RSRP = -100dBm, at which point D1 = 5G RSRP-B 1(4-5) =3dBm>0, then substitute the number of switching times n=1 into T1==5+2.5n, and the 4G voice establishment time is extended to 7.5s.

[0100] (3) After the UE establishes a voice service on 4G, it measures the RSRP frequency value on the 5G side (periodic measurement) and determines the frequency difference D1.

[0101] (4) Measured 5G RSRP = -101dBm, at this time D1 = 5GRSRP-B 1(4-5) =2dBm>0, the UE switches back to the original 5G, substitutes n=1 into T2==10+5n, and extends the periodic measurement GAP to 15s.

[0102] (5) After the UE switches back to the original 5G, it immediately measures the RSRP frequency value on the 5G side and determines the frequency difference D2.

[0103] (6) Measured 5G RSRP = -102dBm, at this time D2 = 5GRSRP-A 2(5-4) =13dBm>0, substituting n=2 into T3==4+2n, the 5G voice service establishment time is extended to 8s. This allows the 5G frequency value to decrease further, thereby reducing the probability of the UE switching back to 4G based on voice quality.

[0104] (7) After the 5G voice service is established, D2 is measured again. If D2>0, the UE will switch back to 4G based on the voice quality again, and n=3 at this time.

[0105] (8) Repeat steps (2)-(7), and the RSRP on the 5G side continues to decrease during this process. When the number of switching times n=6, the UE switches from 4G back to 5G, immediately measures the RSRP on the 5G side, and determines the frequency difference D2. 5G RSRP = -116dBm, D2 = 5GRSRP-A 2(5-4)=-1dBm<0. The UE switches back to 4G based on coverage and stays stably on 4G.

[0106] In the embodiment of the present disclosure, after the UE switches from a high-priority cell to a low-priority cell based on the voice service packet loss rate, the three factors are judged: (1) the difference between the original high-priority (5G) cell frequency value and the measurement threshold A2 for switching from high priority to low priority; (2) the difference between the original high-priority (5G) cell frequency value and the periodic measurement time B1 for switching from low priority to high priority after switching from 5G to 4G; and (3) the number of switches. This prolongs the three durations: the waiting time for establishing the voice service after the high-priority cell switches to the low-priority cell, the gap time for periodically measuring the high-priority cell frequency, and the waiting time for establishing the voice service after the low-priority cell switches back to the high-priority cell. This reduces the risk of ping-pong switching caused by the priority cell switching back to the high-priority cell. This can effectively protect the voice perception of users who are doing voice services when they move back and forth at the boundary of different systems.

[0107] The third embodiment of the present disclosure also provides a system for controlling ping-pong switching, such as Figure 4 As shown, the system includes:

[0108] The judgment module 11 is configured to determine whether the frequency value of the high-priority cell after the terminal handover meets a preset condition before the terminal voice service is reestablished, when the UE is performing voice service in the high-priority cell and the voice service quality reaches the handover start measurement threshold before the coverage frequency value, if the terminal undergoes an inter-system handover;

[0109] The delay module 12 is configured to increase the voice service reestablishment time after the terminal switches to another system if the judgment module determines that the electric frequency value of the high priority cell side meets the preset condition.

[0110] Further,

[0111] The judgment module 11 is further configured to judge whether the electric frequency value on the high priority cell side meets a preset condition after the terminal establishes a voice service in the low priority cell;

[0112] The delay module 12 is further configured to increase the GAP duration of periodically measuring the electrical frequency of the high priority cell if the second judgment module determines that the electrical frequency value of the high priority cell side meets the preset condition.

[0113] Furthermore, the delay module 12 is specifically configured as follows:

[0114] The increased voice service reestablishment duration and the increased periodic measurement GAP duration of the high-priority cell frequency are set according to the number of inter-system handovers of the terminal.

[0115] Furthermore, the preset conditions include:

[0116] If the terminal switches to a low-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the periodic measurement threshold for coverage-based switching on the low-priority cell side to the high-priority cell side;

[0117] If the terminal switches to a high-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the measurement threshold for switching from the high-priority cell side to the low-priority cell side based on coverage.

[0118] Furthermore, the system further includes a switching module 13

[0119] The judgment module 11 is further configured to judge whether the electric frequency value of the high-priority cell side is greater than the measurement threshold of the high-priority cell side based on coverage switching to the low-priority cell side after the terminal establishes a voice service in the high-priority cell;

[0120] The switching module 13 is configured to, if the judgment module 11 judges that the electric frequency value on the high-priority cell side is greater than the measurement threshold for switching the high-priority cell side to the low-priority cell side based on coverage, enable the terminal to perform an inter-system handover based on voice quality, and after the handover, again judge whether the electric frequency value on the high-priority cell side after the terminal is switched meets a preset condition; and

[0121] If the judgment module 11 determines that the electric frequency value of the high priority cell side is not greater than the starting threshold for switching from the high priority cell side to the low priority cell side based on coverage, the terminal performs inter-system switching based on coverage and resides in the low priority cell.

[0122] The system for controlling ping-pong switching in the embodiment of the present disclosure is used to implement the method for controlling ping-pong switching in method embodiment 1 and embodiment 2, so the description is relatively simple. For details, please refer to the relevant description in the previous method embodiment 1 and embodiment 2, which will not be repeated here.

[0123] In addition, if Figure 5 As shown, the fourth embodiment of the present disclosure further provides an electronic device, including a memory 100 and a processor 200, wherein the memory 100 stores a computer program. When the processor 200 runs the computer program stored in the memory 100, the processor 200 executes the above-mentioned various possible methods.

[0124] The memory 100 is connected to the processor 200 . The memory 100 may be a flash memory, a read-only memory, or other memory. The processor 200 may be a central processing unit or a single-chip microcomputer.

[0125] In addition, an embodiment of the present disclosure further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is used by a processor to execute the above-mentioned various possible methods.

[0126] The computer-readable storage medium includes volatile or nonvolatile, removable or non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules or other data). Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable read only memory), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory), Digital Versatile Disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer.

[0127] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A method for controlling ping-pong switching, characterized in that: The method comprises: When a UE is performing voice services in a high-priority cell and the voice service quality reaches the handover start measurement threshold before the coverage frequency value, if the terminal undergoes an inter-system handover, the system determines whether the frequency value on the high-priority cell side after the terminal handover meets the preset conditions before the terminal's voice service is reestablished. If the requirements are met, the voice service reestablishment time after the terminal switches to another system is increased; and Set the increased voice service reestablishment time based on the number of inter-system handovers of the terminal; The preset conditions include: If the terminal switches to a low-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the periodic measurement threshold for coverage-based switching on the low-priority cell side to the high-priority cell side; If the terminal switches to a high-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the measurement threshold for switching from the high-priority cell side to the low-priority cell side based on coverage.

2. The method according to claim 1, characterized in that The method further comprises: After the terminal establishes a voice service in the low-priority cell, it determines whether the frequency value on the high-priority cell side meets the preset conditions; If the conditions are met, the GAP duration for periodically measuring the electrical frequency of the high-priority cell is increased.

3. The method according to claim 2, characterized in that The method further comprises: The GAP duration of the increased periodic measurement of the high-priority cell's electrical frequency is set according to the number of inter-system handovers of the terminal.

4. The method according to claim 1, wherein The method further comprises: After the terminal establishes a voice service in the high-priority cell, it determines whether the frequency value of the high-priority cell side is greater than the measurement threshold for coverage-based switching to the low-priority cell side on the high-priority cell side; If so, the terminal performs inter-system handover based on voice quality, and after the handover, it is determined again whether the frequency value of the high-priority cell side after the terminal handover meets the preset conditions; If not, the terminal performs inter-system handover based on coverage and resides in a low-priority cell.

5. A system for controlling ping-pong switching, characterized in that: The system comprises: A judgment module is configured to determine whether the frequency value of the high-priority cell after the terminal handover meets a preset condition before the terminal voice service is reestablished, when the UE is performing voice service in the high-priority cell and the voice service quality reaches the handover start measurement threshold before the coverage frequency value, if the terminal undergoes an inter-system handover; A delay module is configured to increase the duration of voice service reconstruction after terminal inter-system switching if the judgment module determines that the frequency value of the high-priority cell side meets the preset conditions; and Specifically, the increased voice service reestablishment time is set according to the number of inter-system handovers of the terminal; The preset conditions include: If the terminal switches to a low-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the periodic measurement threshold for coverage-based switching on the low-priority cell side to the high-priority cell side; If the terminal switches to a high-priority cell, the preset condition is: the electric frequency value on the high-priority cell side is greater than the measurement threshold for switching from the high-priority cell side to the low-priority cell side based on coverage.

6. The system according to claim 5, characterized in that The judgment module is further configured to judge whether the electric frequency value on the high-priority cell side meets a preset condition after the terminal establishes a voice service in the low-priority cell; The delay module is further configured to increase the GAP duration of periodically measuring the electrical frequency of the high priority cell if the second judgment module determines that the electrical frequency value on the high priority cell side meets a preset condition.

7. The system according to claim 6, characterized in that The delay module is specifically configured as follows: The GAP duration of the increased periodic measurement of the high-priority cell's electrical frequency is set according to the number of inter-system handovers of the terminal.

8. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the processor runs the computer program stored in the memory, the processor executes the method for controlling ping-pong switching according to any one of claims 1 to 4.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for controlling ping-pong switching according to any one of claims 1 to 4 is implemented.

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