CN111405622B - Voice quality-based handover method and device, terminal, and storage medium - Google Patents

Abstract

The embodiment of the application discloses a switching method based on voice quality, which comprises the following steps: acquiring voice quality information in a call process; under the condition that the voice quality information meets the triggering condition, triggering different systems to switch; the triggering condition is a preset threshold value representing call quality. The embodiment of the application also provides a switching device, a terminal and a storage medium based on the voice quality.

Description

Voice quality-based handover method and device, terminal, and storage medium

technical field

The present application relates to wireless technologies, and relates to, but is not limited to, voice quality-based handover methods and devices, terminals, and storage media.

Background technique

The terminal often encounters the problem of silent and intermittent calls during the call. The reasons for these problems can be divided into several categories: the first is caused by poor network coverage; the second is caused by strong noise interference; the third The class is caused by the loss of voice packets on the network side. Of course, there are other types of reasons, such as the problem of the terminal itself. At present, the protocol mainly deals with the first type of problem. It can perform inter-frequency or inter-system handover based on signal quality, so as to select a better cell or system for a call, but for other types of reasons, the call is intermittent or silent. The problem is that the current protocol cannot handle it.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present application provide a voice quality-based switching method, device, terminal, and storage medium to solve at least one problem in the prior art, which can solve the problem of silent and intermittent calls caused by strong interference, Thereby, the call experience of the user is improved.

The technical solutions of the embodiments of the present application are implemented as follows:

In a first aspect, an embodiment of the present application provides a voice quality-based handover method, which is applied to a terminal, and the method includes:

Obtain voice quality information during a call;

In the case that the voice quality information satisfies the triggering condition, the inter-system handover is triggered; wherein the triggering condition is a preset threshold characterizing the call quality.

In a second aspect, an embodiment of the present application provides a voice quality-based handover method, which is applied to a network device, and the method includes:

In the case that the voice quality satisfies the trigger condition, the terminal is triggered to perform inter-system handover; wherein, the trigger condition is a preset threshold representing the call quality.

In a third aspect, an embodiment of the present application provides a voice quality-based switching device, the switching device includes an acquisition module and a switching module, wherein:

The obtaining module is used to obtain the voice quality information during the call;

The handover module is configured to trigger inter-system handover when the voice quality satisfies a trigger condition; wherein, the trigger condition is a set threshold representing a call quality standard.

In a fourth aspect, an embodiment of the present application provides a voice quality-based switching device, the switching device includes a triggering module for triggering a terminal to perform inter-system switching when voice quality information satisfies a trigger condition; wherein, the The trigger condition is a preset threshold that characterizes the call quality.

In a fifth aspect, an embodiment of the present application provides a terminal, including a memory and a processor, the memory stores a computer program that can be run on the processor, and the processor implements the above voice quality-based switching when executing the program steps in the method.

In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps in the above voice quality-based switching method.

The beneficial effects brought by the technical solutions provided in the embodiments of the present application include at least:

In the embodiment of the present application, first, the voice quality information during the call is acquired; then, when the voice quality satisfies the trigger condition, an inter-system handover is triggered; wherein, the trigger condition is a set characterizing call quality Standard threshold; in this way, by tracking the call quality status, when the trigger conditions are met, the process of switching between different systems is triggered, which avoids the problem of silent and intermittent calls caused by strong interference when the actual network environment is good, and improves the user's experience. call experience.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

FIG. 1 is a scenario of switching based on voice quality provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

3 is a schematic flowchart of a voice quality-based handover method provided by an embodiment of the present application;

4 is a schematic flowchart of another voice quality-based handover method provided by an embodiment of the present application;

FIG. 5 is an interactive flowchart of another voice quality-based handover method provided by an embodiment of the present application;

FIG. 6 is a logic flow diagram of performing inter-system handover based on voice quality according to an embodiment of the present application;

7 is a schematic structural diagram of a voice quality-based switching apparatus provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another voice quality-based switching apparatus provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a hardware entity of a terminal according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a hardware entity of a network device according to an embodiment of the present application.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. The following examples are used to illustrate the present application, but are not intended to limit the scope of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

Before the detailed introduction of the voice quality-based handover method provided by the embodiments of the present application, the terms and communication systems involved in the embodiments of the present application are briefly introduced.

First of all, in order to facilitate the understanding of the solutions of the embodiments of the present application, the handover method in the related art is analyzed and explained:

The handover events supported by 2G/3G, LTE (Long Term Evolution, Long Term Evolution), 5G NR (New Radio, New Radio) and other networks are Type A and Type B, where Type A is used for intra-system measurement, and Type B is used for for inter-system measurements. During LTE handover, the terminal needs to report the measurement results, including RSRP (Reference Signal Receiving Power, reference signal receiving power) and RSRQ (Reference Signal Receiving Quality, reference signal receiving quality), etc., and the reporting is divided into periodic reporting and event-triggered. report. Periodic reporting is configured by the base station, and the UE directly reports the measurement results; the event-triggered reporting is further divided into intra-frequency system events and events between different systems, where intra-frequency system events include events A1 to A6, where:

Event A1, the service quality of the serving cell is better than the absolute threshold; this event can be used to disable the measurement between certain cells; event A2, the service quality of the serving cell is worse than the absolute threshold; this event can be used to enable the measurement between certain cells, Because the handover and other operations may occur after this event occurs; event A3, the service quality of the neighboring cell is better than that of the serving cell; this event occurrence can be used to determine whether the UE is handed over to the neighboring cell; event A4, the service quality of the neighboring cell is good In event A5, the service quality of the serving cell is worse than an absolute threshold and the service quality of the adjacent cell is better than an absolute threshold; this event can also be used to support handover; event A6, the service quality of the adjacent cell is better than that of the secondary cell quality of service.

Events between different systems include event B1 and event B2, among which: event B1: indicates that the service quality of the neighboring cell of the different system is higher than a certain threshold, and when the event is reported to meet this condition, the terminal reports the measurement report, and the source base station initiates the inter-system handover request , used to measure high-priority inter-system cells; event B2: Indicates that the service quality of the serving cell is lower than a certain threshold and the service quality of the inter-system neighboring cells is higher than a certain threshold, the terminal reports a measurement report, and the source base station initiates an inter-system handover request .

Usually, the handover is initiated by the network, and the basis of the network handover is triggered by an event, that is to say, it is triggered according to the event type of the serving cell network configuration. Take the mobile network as an example: for example, the current network configuration is a B1 event. If the user is in a VoLTE (Voice over LTE) call, the terminal detects that the current inter-system neighbor GSM (Global System for Mobile Communication, Global System for Mobile Communication) service quality is high At the threshold set by the network (usually set to -100dBm), SRVCC (Single Radio Voice Call Continuity, single wireless voice call continuity) handover will occur at this time, that is, a different system handover occurs, switching from LTE to GSM network, that is It is said that the B1 event does not pay attention to the service quality of the serving cell, but only detects the service quality of the neighboring cell of the different system. When the service quality of the neighboring cell of the different system reaches the threshold, the terminal will switch.

B1 is only configured in special scenarios (for example, the LTE coverage area is unstable). In general scenarios, the network is configured with B2 events. Through the explanation of B2 events, we can know: only when the service quality of the serving cell is lower than the threshold 1 (generally (configured to -120dBm), the handover will be initiated only when the quality of service of the neighboring cell of the different system is higher than the threshold 2, that is to say, the terminal will only initiate a signal when the LTE signal is attenuated to a very low level during the VoLTE call. Measurement, when the service quality of the serving cell and the service quality of the neighboring cells of the different system meet the threshold 1 and the threshold 2 respectively, the measurement report will be reported to the network, and the network will initiate handover at this time.

VoLTE service is a multimedia voice network based on IP transmission technology. Its call quality is not only related to the quality of the wireless environment, but also to the packet loss rate, delay, delay jitter, and handover status of VoIP packets. Indicators directly affect the perception of VoLTE users. In scenarios where these indicators continue to deteriorate, problems such as single-pass, intermittent, and poor quality of users will be caused.

SRVCC is a VoLTE voice service continuity solution proposed by 3GPP, mainly to solve the problem of how to ensure voice when a terminal (single radio UE) moves between an LTE network and a 2G/3G CS (Circuit Switched, circuit switched domain) network. The problem of call continuity is to ensure the smooth switching of the terminal between the IMS-controlled VoIP voice and the CS domain voice. It can be simply understood as: in the VoLTE call state, the terminal moves to the LTE coverage blind area. At this time, only the 2/3G network is covered. In order not to drop the call and maintain the continuity of the call, the call needs to be "switched" to 2/3G. network.

In the existing network, there are many scenarios in which the coverage is good, that is, the RSRP is good, but the uplink and downlink channel quality, such as SINR (Signal to Interference plus Noise Ratio, signal to interference plus noise ratio) is poor. FIG. 1 is a scenario of switching based on voice quality provided by an embodiment of the present application. As shown in FIG. 1 , in this scenario, it may occur that the user's VoLTE voice quality has deteriorated, such as MOS (Mean Opinion Score, mean opinion value). It is already less than 3 points, and the handover based on RSRP coverage in the traditional sense cannot take effect.

For example, the switching threshold configured in some regional networks is -121dB. At -110dB, the signal demodulation of the terminal has become difficult, the packet loss rate has increased, and the call quality has been too poor. In fact, the better choice at this time is to switch to 2G for SRVCC /3G cell, but because the signal measurement threshold is not met, the network cannot trigger the SRVCC procedure. In order to avoid the above problems, it is urgent to propose a method for accelerating SRVCC handover or inter-frequency handover, so as to improve the user's call experience.

Next, the communication system involved in the embodiments of the present application is briefly introduced.

FIG. 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application, and exemplarily shows two network devices 210 and one terminal 220 . Optionally, the communication system may include multiple network devices, and the coverage of each network device may include other numbers of terminals, which are not limited in this embodiment of the present application.

The network device 210 in the communication system can provide communication coverage for a specific geographic area, and can communicate with the terminal 220 located in the coverage area. Optionally, the network device 210 may be an eNB or an eNodeB (Evolutional Node B, evolved network device) in an LTE system, or a radio controller in a CRAN (Cloud Radio Access Network, cloud radio access network), or the The network device 210 may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network device in a 5G network, or a network device in a future communication system, and the like.

The communication system also includes at least one terminal 220 located within the coverage of the network device 210 . As used herein, "terminal" includes, but is not limited to, connection via wireline, such as via PSTN (Public Switched Telephone Networks), DSL (Digital Subscriber Line), digital cable, direct cable connection; and /or another data connection/network; and/or via a wireless interface, eg for cellular networks, WLAN (Wireless Local Area Network), digital television networks such as DVB-H networks, satellite networks, AM-FM radio A transmitter; and/or a device of another terminal configured to receive/send a communication signal; and/or an IoT (Internet of Things, Internet of Things) device. A terminal arranged to communicate through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; PCS (Personal Communications System) terminals that can combine cellular radio telephones with data processing, facsimile, and data communication capabilities; can include radio telephones, pagers, Internet/Intranet PDA (Personal Digital Assistant) with access, web browser, memo pad, calendar and/or GPS (Global Positioning System) receiver; and conventional laptop and/or palmtop receivers or other electronic devices including radiotelephone transceivers. A terminal may refer to an access terminal, UE (User Equipment, user equipment), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment . The access terminal can be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA, a handheld device with wireless communication capabilities, a computing device, or a connection Other processing devices to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks or terminals in future evolved PLMNs, etc. For the convenience of description, the devices mentioned above are collectively referred to as terminals.

In order to solve the technical problems existing in the background technology, an embodiment of the present application provides a voice quality-based switching method, which is applied to a terminal. The functions implemented by the method can be implemented by calling a program code by a processor in the terminal. Of course, the program code It can be stored in a computer storage medium, and it can be seen that the terminal at least includes a processor and a storage medium. FIG. 3 is a schematic flowchart of a voice quality-based handover method provided by an embodiment of the present application. As shown in FIG. 3 , the method includes at least the following steps:

Step S310, the terminal acquires voice quality information during the call.

Here, the terminal may be a device with a voice or video call function, such as a mobile phone or a tablet computer.

Here, the terminal acquires the voice quality information during the call, which may be real-time monitoring of the voice quality information during the wireless call in the wireless call mode of the current network, wherein the wireless call in the wireless call mode includes VoLTE calls and VoWiFi calls Or a 5G call, which is not limited in this embodiment of the present application.

Here, the voice quality information may include real-time transmission RTP packet loss rate, transmission network transmission delay, core network processing delay, air interface transmission delay, voice codec delay and jitter of the terminal, and the like.

In some embodiments, the terminal first accesses the current network through a wireless access point (Access Point, AP) to enter the wireless call mode; then authenticates the AP; after passing the authentication, it can monitor the voice quality information during the wireless call .

In some embodiments, the step S310 "obtaining voice quality information during a call" may be triggered only when certain conditions are met, and does not need to be performed all the time. Start listening when keywords such as "Hello", "Hello", "Hi", etc.

Step S320: Trigger an inter-system handover when the voice quality information satisfies the triggering condition.

Here, by monitoring the voice quality information in the call, and judging that the voice quality information such as the packet loss rate is greater than a certain threshold, the network device can be triggered to issue an inter-system measurement event, and the inter-frequency or inter-system measurement can be enabled; wherein, the network device is The base station corresponding to the serving cell currently accessed by the terminal.

It should be noted that the inter-system measurement event can be a B1 event or a B2 event specified in the protocol; wherein, the B1 event indicates that the quality of the inter-system neighboring cell is higher than a specific threshold 1, which is used to measure the high-priority inter-system cell; the B2 event indicates The quality of the serving cell is lower than a specific threshold 2 and the quality of the inter-system neighboring cells is higher than a specific threshold 3, where the specific threshold 1, the specific threshold 2 and the specific threshold 3 are configured by the network device.

Here, the inter-system handover refers to the terminal switching from the current serving cell to the inter-system neighboring cell, which may include switching the network used for voice calls from the 4G network to the 2G/3G network. For example, the current terminal is using VoLTE service calls, The terminal can be switched from VoLTE service to CS voice call through SRVCC mode; alternatively, it can also include switching from 5G voice to 4G voice, switching from VoLTE call to VoWiFi call, etc.

It can be understood that the different system refers to the different RAT technology (Radio Access Technology, radio access technology), that is, the communication system whose working principle of the entire protocol is inconsistent with the current system. For example, the different system of LTE includes GSM, TD-SCDMA, Communication systems such as WCDMA.

It should be noted that the inter-system adjacent cells are for the current serving cell accessed by the terminal, and may be one or more adjacent cells using different RAT technologies. Two cells with overlapping coverage and set with a handover relationship can be adjacent to each other (adjacent cells). The smooth alternation of services will not be interrupted.

It can be understood that, before the network device delivers the inter-system measurement event, it needs to deliver the measurement configuration information through signaling such as RRC reconfiguration information.

Further, after receiving the inter-system measurement event sent by the network device, the terminal performs measurement according to the measurement parameters configured by the network device, and performs measurement report evaluation when certain trigger conditions are satisfied. If the report conditions are satisfied, the terminal will perform measurement report evaluation. Fill in, and include the evaluation result in the measurement report and send it to the network device.

Further, after receiving the specific measurement report sent by the terminal, the network device may determine whether to trigger the inter-system handover based on the inter-system measurement report and RRM (Radio Resource Management, radio resource management) information, that is, start the inter-system handover. Request to let the terminal switch to the neighboring cell of the different system.

In the embodiment of the present application, first, the voice quality information during the call is acquired; then, when the voice quality satisfies the trigger condition, an inter-system handover is triggered; wherein, the trigger condition is a set characterizing call quality The standard threshold; in this way, by tracking the call quality status, when the trigger conditions are met, the inter-system handover process is performed, which avoids the problem of silent and intermittent calls caused by strong interference when the actual network environment is good, and improves the user's experience. call experience.

FIG. 4 is a schematic flowchart of another voice quality-based handover method provided by an embodiment of the present application, which is applied to a network device. As shown in FIG. 4 , the method includes at least the following steps:

Step S410: Determine whether the voice quality information during the call satisfies the triggering condition.

Here, the voice quality information may include RTP packet loss rate, transmission network transmission delay, core network processing delay, air interface transmission delay, voice codec delay and jitter of the terminal, and the like.

Step S420, in the case that the voice quality information satisfies the triggering condition, the network device triggers the terminal to perform inter-system handover.

Here, the trigger condition is a preset threshold characterizing the call quality, for example, the RTP packet loss rate is greater than a certain threshold.

Here, the network device triggering the terminal to perform inter-system handover further includes that the network device sends an inter-system handover command to the terminal, where the inter-system handover command is used to instruct the terminal to perform inter-system handover.

It should be noted that the network device can be used as a source base station to communicate with a terminal to be handed over to a cell, where the terminal is a terminal that performs a voice call under the current network. At the same time, in order to realize the cell handover, the network device can also prepare for handover with the serving base station of the cell of the different system, that is, the target base station, and send a handover request. Finish. The source base station does not modify the inter-system handover command generated by the target base station, and directly forwards the inter-system handover command to the terminal.

In the embodiment of the present application, the network device triggers the terminal to perform inter-system handover when the voice quality information satisfies the triggering condition; in this way, according to the call quality status, when the voice quality information satisfies the triggering condition, the inter-system handover is triggered The process avoids the problem of silent and intermittent calls caused by strong interference when the actual network environment is good, and improves the user's call experience.

FIG. 5 is an interactive flowchart of another voice quality-based handover method provided by an embodiment of the present application. As shown in FIG. 5 , the method includes at least the following steps:

Step S510, the terminal obtains the RTP packet loss rate during the call.

Here, the RTP (Real Time Protocol, real-time transmission protocol) packet loss rate is the ratio of the data packets sent in the unit time to the data packets not received, and the RTP packet loss rate is an important factor that affects the voice quality in the call. influencing factors.

It should be noted that the transmission of data in the network is transmitted in the form of sending and receiving data packets. Ideally, as many data packets can be received as many data packets are sent. However, due to many factors such as signal attenuation, network quality, etc. Under the influence of , there will not be an ideal result, that is, as many data packets can be received without sending as many packets. The smaller the packet loss rate during the call, the better the voice quality.

Step S520, in the case that the RTP packet loss rate is higher than the second threshold, the terminal sends the second network signal energy value to the network device.

Here, the second threshold is a preset RTP packet loss rate threshold, indicating that the call quality is poor and network handover needs to be performed as soon as possible.

Here, the second network signal energy value is used to trigger the network device to send an inter-frequency measurement event to the terminal, and may be a constructed RSRP or RSRQ value lower than an absolute threshold (-110dBm), such as -115dBm (wherein The first network signal energy value corresponds to -120dBm).

Step S530, the network device sends the inter-frequency measurement event to the terminal.

Here, the inter-frequency measurement event is the A2 event, which means that the signal quality of the serving cell accessed by the terminal is worse than the absolute threshold, and can be used to enable measurement between certain cells, because operations such as handover may occur after the A2 event occurs.

Step S540, the terminal performs inter-frequency measurement.

Here, the inter-frequency measurement refers to measuring a downlink frequency point different from the downlink frequency point of the current serving cell (which may be a frequency point of the same cell or a neighboring cell).

In some embodiments, after the terminal reports the A2 measurement report, the network device sends inter-system B2 measurement control information to delete all inter-frequency frequency points in the inter-system. different frequency points.

It should be noted that, the foregoing steps S520 to S540 are optional steps, which may be defaulted in some networks where the A2 event is not deployed, which is not limited in this embodiment of the present application.

Step S550, when the RTP packet loss rate reaches the first threshold, the terminal sends the first network signal energy value to the network device.

Here, the first threshold is higher than the second threshold, which is a preset RTP packet loss rate threshold, which is generally an empirical value, indicating that the call quality is poor and network switching is required.

Here, the energy value of the first network signal is lower than the energy value of the second network signal, which is used to trigger the network device to send an inter-system measurement event to the terminal, and may be configured to be lower than an absolute threshold (-110dBm) The RSRP or RSRQ value, such as -120dBm.

Step S560, the network device sends the inter-system measurement event to the terminal.

Here, the inter-system measurement event is a B1 event or a B2 event.

Step S570, the terminal performs inter-system measurement.

Step S580, the terminal sends a specific measurement report to the network device according to the measurement result of the different system.

Here, the specific measurement report is used by the network device to instruct the terminal to perform inter-system handover, and may include measurement ID, the result of poor signal quality of the serving cell, and the measurement result of good signal quality of adjacent cells of the inter-system; wherein, The result of the poor signal quality of the serving cell may be any constructed value lower than the threshold; it may also be an actual measured value lower than the threshold.

It should be noted that for different measurement events (B1 events or B2 events) sent by the network device, corresponding to different specific measurement reports, the corresponding measurement report will be triggered only when the measurement event entry threshold configured by the network device is met and persisted for a period of time. the sending of specific measurement reports.

In some embodiments, the inter-system measurement event is a B1 measurement event, and when the third network signal energy value of the inter-system is higher than a specific energy threshold, the third network signal energy value is used to determine the Specific measurement reports.

Here, the third network signal energy value of the different system is the signal quality of the 2/3G cell actually measured according to the network configuration, such as the RSRP or RSRQ value; the specific energy threshold is the specific energy threshold configured by the network that meets the handover conditions threshold.

In some embodiments, the inter-system measurement event is a B2 measurement event, the energy value of the third network signal in the inter-system is higher than a specific energy threshold, and within the trigger period, the RTP packet loss rate is continuously higher than In the case of the first threshold, the specific measurement report is determined according to the third network signal energy value and the first network signal energy value.

Here, the trigger period is configured by the network device, and represents the duration of meeting the event trigger condition. During the trigger period, the RTP packet loss rate is continuously higher than the first threshold, and a measurement report is reported to avoid frequent handovers.

It can be understood that the handover is to enable the user to obtain a better VoLTE service experience, but the frequent handover itself will affect the user's experience. Therefore, this embodiment of the present application provides a protection mechanism, so that the frequent handover does not occur. switching phenomenon.

Step S590, the network device sends an inter-system switching command to the terminal.

Step S5100, the terminal switches to the different system to make a call according to the different system switching command.

Here, when receiving the inter-system switching command sent by the above-mentioned network device, the terminal performs inter-system switching. For example, after receiving the SRVCC command through the first radio frequency channel, the LTE module of the terminal sends the 2G/3G target frequency point and target cell information in the SRVCC command to the 2G/3G module of the terminal, and according to the coverage of the LTE network Carry out bearer-related processing on other data bearers except voice bearers; the 2G/3G module performs random access on the corresponding target cell through the second radio frequency channel.

In some embodiments, the method further includes: the terminal sends a message to the network device, the message indicating whether the terminal supports inter-system handover and/or has inter-frequency measurement capability.

Here, for a terminal that supports inter-frequency measurement and inter-system handover, the network device will deliver the threshold values of the A2 event and the B1/B2 event in the delivered reconfiguration message after access.

In the embodiment of the present application, by tracking the RTP packet loss rate during the call, and judging that the RTP packet loss rate reaches the first threshold, the poor LTE cell signal quality is reported to the network device to trigger inter-system measurement, and finally the report meets the Conditional measurement report, and receive the inter-system handover command sent by the network device to perform inter-system handover, select a better cell or system to make a call, avoid the problem of silent and intermittent calls caused by strong interference, and improve the user's call experience .

The above voice-based service switching method will be described below with reference to a specific embodiment. However, it should be noted that this specific embodiment is only for better description of the present application, and does not constitute an improper limitation of the present application.

At present, most of the parameters based on the switching configuration of the existing network are RSRP or RSRQ. In the actual network environment, there are also scenarios where the signal quality is good, but the call experience is poor, such as in the scenario of strong noise interference.

The embodiment of this application proposes for the first time a method for inter-frequency or SRVCC handover based on voice quality. Voice quality can better reflect the intuitive feeling of a user's call. Compared with the RSRP or RSRQ indicators defined by the protocol, it is more intuitive and accurate, and can be applied to actual networks. The RSRP in the environment is good, but the call experience is poor, which solves the problem of silent and intermittent calls caused by strong interference, thereby improving the user's call experience.

FIG. 6 is a logical flow chart of switching between different systems based on voice quality provided by an embodiment of the present application. As shown in FIG. 6 , the specific implementation process at least includes the following steps:

Step S610, the terminal monitors the voice quality during the IMS call.

Here, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) calls include VoLTE calls or ViLTE calls (ie VoLTE video call service), and the terminal monitors the RTP packet loss rate, delay, and jitter in VoLTE/ViLTE calls.

Step S620, the terminal determines whether the RTP packet loss rate is higher than the threshold value 1.

Here, the threshold value 1 (Threshold1) is a preset threshold, and the pre-defined RTP packet loss rate threshold is generally an empirical value, indicating that the call quality is very poor and network switching is required.

If it is determined that the RTP packet loss rate is higher than Threshold1, step S630 is performed; otherwise, step S610 is continued.

Step S630, the terminal induces the network to configure the A2 measurement event, and enables inter-frequency measurement.

Here, when it is found that the RTP packet loss rate of the voice call is higher than Threshold1, the poor RSRP is reported to the network, and the network is triggered to deliver the inter-frequency measurement event A2 to enable inter-frequency measurement.

Step S640, the terminal determines whether the RTP packet loss rate is higher than the threshold value 2.

Here, if the RTP packet loss rate further increases and reaches the threshold value 2 (Threshold2), step S650 is performed; otherwise, the current call is continued.

Step S650, the terminal induces the network to deliver the B2 measurement configuration.

Here, when the RTP packet loss rate is higher than Threshold2, a worse RSRP value is reported to the network, and the network is guided to deliver the B2 event (optionally, the B1 event) measured by the different system.

Step S660, the terminal reports the constructed B2 measurement report, so that the network triggers the SRVCC handover.

Here, after the B1/B2 event is issued, if the RTP packet loss rate is always higher than Threshold2 within the trigger period, and the different system thresholds meet the conditions, the B2 measurement report is reported to the network. In this report, the LTE The measurement results use the constructed value that satisfies the handover threshold.

After the B2 measurement report is successfully reported to the network, the network side issues a handover command to the terminal, and the terminal switches to a different system for a call.

Step S670, the SRVCC switching is completed.

In some embodiments, the above voice quality-based handover method can also be used in the handover process from 5G voice to 4G voice, or the handover process from VoLTE call to VoWiFi call.

In the embodiment of the present application, by monitoring the voice quality during the IMS call, such as the RTP packet loss rate, the poor RSRP or RSRQ is dynamically reported to the network side, so as to prompt the network to trigger inter-line frequency or SRVCC handover and select a better cell Or the system makes a call to avoid the problem of silent and intermittent calls caused by strong interference, and to improve the user's call experience.

Based on the foregoing embodiments, an embodiment of the present application further provides a voice quality-based switching device, the switching device includes each module included and each unit included in each module, which can be implemented by a processor in a terminal Of course, it can also be realized by a specific logic circuit; in the process of implementation, the processor can be a CPU (central processing unit), MPU (microprocessor), DSP (digital signal processor) or FPGA (field programmable gate array) )Wait.

FIG. 7 is a schematic structural diagram of a voice quality-based switching device provided by an embodiment of the present application. As shown in FIG. 7 , the switching device 700 includes an acquisition module 710 and a switching module 720, wherein:

The obtaining module 710 is used to obtain the voice quality information during the call;

The handover module 720 is configured to trigger inter-system handover when the voice quality satisfies a trigger condition; wherein, the trigger condition is a set threshold representing a call quality standard.

In some embodiments, the voice quality information is the real-time transmission RTP packet loss rate, and the switching module includes a first sending sub-module and a second sending sub-module, wherein: the first sending sub-module is used for When the RTP packet loss rate reaches the first threshold, the first network signal energy value is sent to the network device; wherein the first network signal energy value is used to trigger the network device to send an inter-system measurement event to the terminal The second sending submodule is used to send a specific measurement report to the network device according to the result of the inter-system measurement; wherein, the specific measurement report is used by the network device to instruct the terminal to perform an inter-system measurement. switch.

In some embodiments, the apparatus further includes a third sending submodule, configured to send a second network signal energy value to the network device when the RTP packet loss rate is higher than a second threshold; wherein, the second threshold is lower than the first threshold; the second network signal energy value is used to trigger the network device to send an inter-frequency measurement event to the terminal; the second network signal energy value is higher than the The first network signal energy value.

In some embodiments, the inter-system measurement event is a first measurement event, and the second sending sub-module includes a first determining unit and a first sending unit, wherein: the first determining unit is configured to When the energy value of the third network signal of the different system is higher than a specific energy threshold, determine the specific measurement report according to the energy value of the third network signal; the first sending unit is configured to send the specific measurement report The measurements are reported to the network device so that the network device triggers an inter-system handover.

In some embodiments, the inter-system measurement event is a second measurement event, and the second sending sub-module includes a second determining unit and a second sending unit, wherein: the second determining unit is configured to The third network signal energy value of the different system is higher than a specific energy threshold, and in the trigger period, when the RTP packet loss rate is continuously higher than the first threshold, according to the third network signal energy value and all the first network signal energy value to determine the specific measurement report; wherein, the trigger period is configured by the network device; the second sending unit is configured to send the specific measurement report to the network equipment.

In some embodiments, the switching apparatus further includes a message sending module, configured to send a message to the network device, the message indicating whether the terminal supports inter-system handover and/or has inter-frequency measurement capability.

In some embodiments, the switching module further includes a receiving sub-module and a switching sub-module, wherein: the receiving sub-module is configured to receive an inter-system switching command sent by the network device; the switching sub-module is configured to According to the different system switching command, switch to the different system to make a call.

In some embodiments, the voice quality information further includes at least one of the following: transmission network transmission delay, core network processing delay, air interface transmission delay, voice codec delay and jitter of the terminal.

It should be pointed out here that the descriptions of the above apparatus embodiments are similar to the descriptions of the above method embodiments, and have similar beneficial effects to the method embodiments. For technical details not disclosed in the device embodiments of the present application, please refer to the descriptions of the method embodiments of the present application for understanding.

FIG. 8 is a schematic structural diagram of another voice quality-based switching apparatus provided by an embodiment of the present application. As shown in FIG. 8 , the switching apparatus 800 includes: a determining module 810 and a triggering module 820, wherein: the determining module 810, Used to determine whether the voice quality information during the call satisfies the triggering condition, the triggering module 820 is used to trigger the terminal to perform inter-system handover when the voice quality satisfies the triggering condition; wherein, the triggering condition is a preset Threshold to characterize call quality.

In some embodiments, the voice quality information is the real-time transmission RTP packet loss rate, and the triggering module 820 includes a first receiving sub-module, a fourth sending sub-module, a second receiving sub-module and a triggering sub-module, wherein: all The first receiving submodule is configured to receive the first network signal energy value sent by the terminal when the RTP packet loss rate reaches a first threshold; the fourth sending submodule is configured to receive the first network signal energy value according to the first network signal energy value, and send an inter-system measurement event to the terminal; the second receiving submodule is used to receive a specific measurement report sent by the terminal; wherein, the specific measurement report is the terminal according to the specific measurement report. The system measurement result is determined; the triggering sub-module is configured to trigger the terminal to perform inter-system handover according to the specific measurement report.

In some embodiments, the triggering module 820 further includes a second receiving sub-module and a fifth sending sub-module, wherein: the second receiving sub-module is configured to be used when the RTP packet loss rate is higher than a second threshold In the case of receiving a second network signal energy value; wherein the second threshold value is lower than the first threshold value; the second network signal energy value is higher than the first network signal energy value; the fifth transmission A submodule, configured to send an inter-frequency measurement event to the terminal according to the energy value of the second network signal.

In some embodiments, the inter-system measurement event is a first measurement event, and the specific measurement report is that when the energy value of the third network signal of the inter-system is higher than a specific energy threshold, the terminal according to the The third network signal energy value is determined.

In some embodiments, the inter-system measurement event is a second measurement event, the specific measurement report is that the third network signal energy value in the inter-system neighbor cell is higher than the specific energy threshold, and the trigger is triggered During the period, when the RTP packet loss rate is continuously higher than the first threshold, it is determined according to the energy value of the third network signal and the energy value of the first network signal; wherein, the trigger period is any the configuration of the network device described above.

In some embodiments, the triggering submodule is further configured to send an inter-system handover command to the terminal according to the specific measurement report.

In some embodiments, the switching apparatus 800 further includes a third receiving sub-module, configured to receive a message sent by the terminal, the message indicating whether the terminal supports inter-system handover and/or has inter-frequency measurement capability.

In some embodiments, the voice quality information further includes at least one of the following: transmission network transmission delay, core network processing delay, air interface transmission delay, voice codec delay and jitter of the terminal.

It should be pointed out here that the descriptions of the above apparatus embodiments are similar to the descriptions of the above method embodiments, and have similar beneficial effects to the method embodiments. For technical details not disclosed in the device embodiments of the present application, please refer to the descriptions of the method embodiments of the present application for understanding.

Correspondingly, based on the same technical concept, an embodiment of the present application provides a terminal for implementing the voice quality-based handover method described in the above method embodiments. FIG. 9 is a schematic diagram of a hardware entity of a terminal provided by an embodiment of the present application. As shown in FIG. 9 , the hardware entity of the terminal 900 includes: a processor 901 , a receiver 902 , a transmitter 903 , a memory 904 and a bus 905 . It should be noted that FIG. 9 is only an exemplary architecture diagram. In addition to the functional units shown in FIG. 9 , the network architecture may further include other functional units, which are not limited in this embodiment of the present application.

The processor 901 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.

The receiver 902 and the transmitter 903 may be implemented as a communication component, which may be a communication chip.

The memory 904 is connected to the processor 901 through the bus 905 .

The memory 904 can be used to store a computer program, and the processor 901 is used to execute the computer program, so as to implement each step of the voice quality-based handover method performed by the terminal in the above method embodiment.

Additionally, memory 904 may be implemented by any type or combination of volatile or non-volatile storage devices including, but not limited to: magnetic or optical disks, EEPROM (electrically erasable) Programmable Read Only Memory), EPROM (Erasable Programmable Read Only Memory), SRAM (Static Anytime Access Memory), ROM (Read Only Memory), Magnetic Memory, Flash Memory, PROM (Programmable Read Only Memory) .

In an exemplary embodiment, the terminal includes a processor 901 and a memory 904, and the processor is configured to invoke a computer program stored in the memory 904 to execute the voice quality-based handover method in the method embodiment, including : monitor the voice quality during the call; in the case that the voice quality meets the trigger condition, induce the network device to issue an inter-system measurement event; in the process of measuring according to the inter-system measurement event, in the inter-system neighboring cell When the quality of service of the device satisfies the preset condition, a specific measurement report is reported to the network device, so that the network device triggers an inter-system handover.

In some embodiments, the voice quality information is the real-time transmission RTP packet loss rate, and the transmitter 903 is further configured to send a first network signal energy value when the RTP packet loss rate reaches a first threshold to a network device; wherein the first network signal energy value is used to trigger the network device to send an inter-system measurement event to the terminal; according to the result of the inter-system measurement, send a specific measurement report to the network device; wherein , the specific measurement report is used by the network device to instruct the terminal to perform inter-system handover.

In some embodiments, the transmitter 903 is further configured to send a second network signal energy value to the network device when the RTP packet loss rate is higher than a second threshold; wherein the second The threshold is lower than the first threshold; the second network signal energy value is used to trigger the network device to send an inter-frequency measurement event to the terminal; the second network signal energy value is higher than the first network signal Energy value.

In some embodiments, the inter-system measurement event is a first measurement event, and the processor 901 is further configured to implement, when the energy value of the third network signal of the inter-system is higher than a specific energy threshold, according to The third network signal energy value determines the specific measurement report; the transmitter 903 is further configured to send the specific measurement report to the network device.

In some embodiments, the inter-system measurement event is a second measurement event, and the processor 901 is further configured to realize that the energy value of the third network signal in the inter-system is higher than a specific energy threshold, and in the trigger period In the case where the RTP packet loss rate is continuously higher than the first threshold, the specific measurement report is determined according to the third network signal energy value and the first network signal energy value; wherein, the The trigger period is configured by the network device; the transmitter 903 is further configured to send the specific measurement report to the network device.

In some embodiments, the transmitter 903 is further configured to send a message to the network device, where the message indicates whether the terminal supports inter-system handover and/or has inter-frequency measurement capability.

In some embodiments, the receiver 902 is further configured to receive an inter-system switching command sent by the network device; the processor 901 is further configured to implement switching to the different-system switching command according to the inter-system switching command The system makes a call.

In some embodiments, the voice quality information further includes at least one of the following: transmission network transmission delay, core network processing delay, air interface transmission delay, voice codec delay and jitter of the terminal.

Correspondingly, based on the same technical concept, an embodiment of the present application provides a network device for implementing the voice quality-based handover method described in the above method embodiments. FIG. 10 is a schematic diagram of a hardware entity of a network device provided by an embodiment of the application. As shown in FIG. 10 , the hardware entity of the network device 1000 includes: a processor 1001 , a receiver 1002 , a transmitter 1003 , a memory 1004 , and a bus 1005 . It should be noted that FIG. 10 is only an exemplary architecture diagram, in addition to the functional units shown in FIG. 10 , the network architecture may further include other functional units, which are not limited in this embodiment of the present application.

The processor 1001 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.

The receiver 1002 and the transmitter 1003 may be implemented as a communication component, which may be a communication chip.

The memory 1004 is connected to the processor 1001 through the bus 1005 .

The memory 1004 can be used to store a computer program, and the processor 901 is used to execute the computer program, so as to implement each step of the voice quality-based handover method performed by the terminal in the above method embodiment.

In addition, the memory 1004 may be implemented by any type of volatile or non-volatile storage devices, including but not limited to: magnetic or optical disks, EEPROM (electrically erasable), or combinations thereof Programmable Read Only Memory), EPROM (Erasable Programmable Read Only Memory), SRAM (Static Anytime Access Memory), ROM (Read Only Memory), Magnetic Memory, Flash Memory, PROM (Programmable Read Only Memory) .

Correspondingly, the embodiments of the present application provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps in the terminal-side voice quality-based switching method provided in the above-mentioned embodiments. .

Correspondingly, the embodiments of the present application provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps in the network-side voice quality-based handover method provided in the foregoing embodiments .

It should be pointed out here that the descriptions of the above storage medium and device embodiments are similar to the descriptions of the above method embodiments, and have similar beneficial effects to the method embodiments. For technical details not disclosed in the embodiments of the storage medium and device of the present application, please refer to the description of the method embodiments of the present application to understand.

Correspondingly, in the embodiment of the present application, a chip is also provided, and the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the voice quality-based switching on the terminal side as described above. method.

Correspondingly, in the embodiment of the present application, a chip is also provided. The chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the voice quality-based switching on the network side as described above. method.

Correspondingly, in the embodiment of the present application, a computer program product is also provided, and when the computer program product is executed by the processor of the terminal, the computer program product is used to implement the above-mentioned voice quality-based switching method on the terminal side.

Correspondingly, in the embodiment of the present application, a computer program product is also provided, and when the computer program product is executed by the processor of the terminal, the computer program product is used to implement the above-mentioned voice quality-based switching method on the network side.

It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present application. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation. The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages or disadvantages of the embodiments.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms. of.

The unit described above as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit; it may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solutions of the embodiments of the present application.

In addition, each functional unit in each embodiment of the present application may all be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above integration The unit can be implemented either in the form of hardware or in the form of hardware plus software functional units.

Alternatively, if the above-mentioned integrated units of the present application are implemented in the form of software function modules and sold or used as independent products, they may also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of software products in essence or the parts that contribute to related technologies. The computer software products are stored in a storage medium and include several instructions to make The automatic test line of the device performs all or part of the methods described in the various embodiments of the present application. The aforementioned storage medium includes various media that can store program codes, such as a removable storage device, a ROM, a magnetic disk, or an optical disk.

The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined under the condition of no conflict to obtain new method embodiments.

The features disclosed in several method or device embodiments provided in this application can be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.

The above is only the embodiment of the present application, but the protection scope of the present application is not limited to this. Covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (18)

1. A switching method based on voice quality is characterized in that the switching method is applied to a terminal, and the method comprises the following steps:

acquiring voice quality information in a call process; wherein, the voice quality information is real-time transmission RTP packet loss rate;

under the condition that the RTP packet loss rate is higher than a second threshold and lower than a first threshold, sending a second network signal energy value to network equipment; wherein the second threshold is lower than the first threshold; the second network signal energy value is used for triggering the network equipment to send an inter-frequency measurement event to the terminal;

performing pilot frequency measurement based on a pilot frequency measurement event sent by the network equipment;

under the condition that the RTP packet loss rate reaches the first threshold value, sending a first network signal energy value to network equipment; the first network signal energy value is used for triggering the network equipment to send a different system measurement event to the terminal; the first network signal energy value is lower than the second network signal energy value;

according to the result of the inter-system measurement, sending a specific measurement report to the network equipment; wherein the specific measurement report is used for the network equipment to instruct the terminal to perform inter-system handover.

2. The method of claim 1, wherein the inter-system measurement event is a first measurement event, and the sending of the specific measurement report to the network device according to the result of the inter-system measurement comprises:

determining the specific measurement report according to a third network signal energy value of the inter-system in case the third network signal energy value is higher than a specific energy threshold;

sending the specific measurement report to the network device.

3. The method of claim 1, wherein the inter-system measurement event is a second measurement event, and the sending of the specific measurement report to the network device according to the result of the inter-system measurement comprises:

determining the specific measurement report according to a third network signal energy value and the first network signal energy value when the third network signal energy value of the inter-system is higher than a specific energy threshold and the RTP packet loss rate is continuously higher than the first threshold within a trigger period; wherein the trigger period is configured for the network device;

sending the specific measurement report to the network device.

4. A method according to any one of claims 1 to 3, wherein the method further comprises:

and sending a message to the network equipment, wherein the message indicates whether the terminal supports inter-system handover and/or has the inter-frequency measurement capability.

5. The method of any of claims 1 to 3, further comprising:

receiving a different system switching command sent by the network equipment;

and switching to the different system for communication according to the different system switching command.

6. A method according to any of claims 1 to 3, wherein the speech quality information further comprises at least one of: transmission network transmission delay, core network processing delay, air interface transmission delay, and voice coding and decoding delay and jitter of the terminal.

7. A switching method based on voice quality is applied to a network device, and the method comprises the following steps:

under the condition that the voice quality information meets the triggering condition, triggering the terminal to perform different system switching; wherein, the voice quality information is the real-time transmission RTP packet loss rate; the triggering condition is a preset threshold value representing the call quality;

wherein, under the condition that the voice quality information meets the triggering condition, the triggering terminal performs the inter-system switching, and the method comprises the following steps:

receiving a second network signal energy value under the condition that the RTP packet loss rate is higher than a second threshold and lower than a first threshold; wherein the second threshold is lower than the first threshold;

according to the second network signal energy value, sending a pilot frequency measurement event to the terminal;

receiving a first network signal energy value sent by the terminal under the condition that the RTP packet loss rate reaches the first threshold; wherein the first network signal energy value is lower than the second network signal energy value;

according to the first network signal energy value, sending a different system measurement event to the terminal;

receiving a specific measurement report sent by the terminal; wherein the specific measurement report is determined by the terminal according to the measurement result of the different system;

and triggering the terminal to carry out inter-system switching according to the specific measurement report.

8. The method of claim 7, wherein the inter-system measurement event is a first measurement event, and the specific measurement report is determined by the terminal according to a third network signal energy value of an inter-system if the third network signal energy value is higher than a specific energy threshold.

9. The method of claim 7, wherein the inter-system measurement event is a second measurement event, the specific measurement report is determined according to a third network signal energy value and the first network signal energy value if a third network signal energy value in an inter-system neighbor cell is higher than a specific energy threshold value and the RTP packet loss rate is continuously higher than the first threshold value within a trigger period; wherein the trigger period is configured for the network device.

10. The method according to any of claims 7 to 9, wherein the triggering the terminal to perform inter-system handover according to the specific measurement report comprises:

and sending a different system switching command to the terminal according to the specific measurement report.

11. The method of any of claims 7 to 9, further comprising:

and receiving a message sent by the terminal, wherein the message indicates whether the terminal supports inter-system handover and/or has the inter-frequency measurement capability.

12. The method according to any of claims 7 to 9, wherein the speech quality information further comprises at least one of: transmission network transmission delay, core network processing delay, air interface transmission delay, and voice coding and decoding delay and jitter of the terminal.

13. The switching device based on the voice quality is applied to a terminal and comprises an acquisition module and a switching module, wherein:

the acquisition module is used for acquiring voice quality information in the call process; wherein, the voice quality information is the real-time transmission RTP packet loss rate;

the switching module includes: a first sending submodule, a second sending submodule and a third sending submodule; wherein,

the third sending submodule is configured to send a second network signal energy value to a network device when the RTP packet loss rate is higher than a second threshold and lower than a first threshold; wherein the second threshold is lower than the first threshold; the second network signal energy value is used for triggering the network equipment to send an inter-frequency measurement event to the terminal; performing pilot frequency measurement based on a pilot frequency measurement event sent by the network equipment;

the first sending submodule is configured to send a first network signal energy value to a network device when the RTP packet loss rate reaches the first threshold; the first network signal energy value is used for triggering the network equipment to send a different system measurement event to the terminal; the first network signal energy value is lower than the second network signal energy value;

the second sending submodule is used for sending a specific measurement report to the network equipment according to the result of the inter-system measurement; wherein the specific measurement report is used for the network equipment to instruct the terminal to perform inter-system handover.

14. A switching device based on voice quality is applied to network equipment, and is characterized in that the switching device comprises a determining module and a triggering module, wherein:

the determining module is used for determining whether the voice quality in the call process meets the triggering condition; wherein, the voice quality information is the real-time transmission RTP packet loss rate;

the trigger module includes: the first receiving submodule, the second receiving submodule, the fourth sending submodule, the fifth sending submodule and the triggering submodule are connected; wherein,

the fourth receiving submodule is configured to receive a second network signal energy value when the RTP packet loss rate is higher than a second threshold and lower than a first threshold; wherein the second threshold is lower than the first threshold;

the fifth sending submodule is used for sending the pilot frequency measurement event to the terminal according to the second network signal energy value;

the first receiving submodule is configured to receive a first network signal energy value sent by the terminal under the condition that the RTP packet loss rate reaches the first threshold; wherein the first threshold is higher than the second threshold; the first network signal energy value is greater than the second network signal energy value;

the fourth sending submodule is used for sending a different system measurement event to the terminal according to the first network signal energy value;

the second receiving submodule is used for receiving a specific measurement report sent by the terminal; wherein the specific measurement report is determined by the terminal according to the measurement result of the different system;

and the triggering submodule is used for triggering the terminal to carry out inter-system switching according to the specific measurement report.

15. A terminal comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor when executing the program performs the steps of the method of any one of claims 1 to 6.

16. A network device comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor implements the steps of the method of any one of claims 7 to 12 when executing the program.

17. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.

18. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 7 to 12.

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