WO2018000789A1

WO2018000789A1 - Method and apparatus for initiating voice call based on volte terminal

Info

Publication number: WO2018000789A1
Application number: PCT/CN2016/113583
Authority: WO
Inventors: 刘建峰
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-06-29
Filing date: 2016-12-30
Publication date: 2018-01-04
Also published as: CN105915736B; CN105915736A

Abstract

Disclosed is a method for initiating a voice call based on a VOLTE terminal, comprising: after placing a primary call, receiving a call network switching instruction issued by an eNodeB in a VOLTE call service; determining whether the terminal receives a ringing message fed back by a called terminal; if not, ending the VOLTE call service by means of a call management module, and reserving a dialing state interface on the display interface of the terminal; and carrying out network switching according to the call network switching instruction, and after completing switching, initiating redialing of a circuit switching domain on the network after switching by means of the call management module. Also disclosed is an apparatus for initiating a voice call based on a VOLTE terminal. The present invention can improve the call success rate of voice calls initiated by a terminal.

Description

Method and device for initiating voice call based on VOLTE terminal

This application claims the priority of the Chinese patent application filed on June 29, 2016, the Chinese Patent Office, the application number is 201610494034.X, and the invention name is "initiating method and device for voice call based on VOLTE terminal". The citations are incorporated herein by reference.

Technical field

The present invention relates to the field of computer technologies, and in particular, to a method and an apparatus for initiating a voice call based on a VOLTE terminal.

Background technique

In the existing LTE (Long Term Evolution, Chinese: Long Term Evolution of Universal Mobile Telecommunications) terminals, there are two main types of LTE voice solutions: the first solution is based on single card single standby or single card dual standby. The voice solution, that is, the data service is transmitted through the LTE network, but the voice service is transmitted through the 2G/3G network, that is, on the traditional CS domain, that is, under the LTE voice solution. The related data transmission of the voice service does not reach the LTE standard, such as SVLTE, SGLTE, CSFB, etc. The second scheme is VOLTE, that is, Voice over LTE, which is an upper layer application IMS (IP Multimedia Subsystem) protocol. The lower layer uses LTE as a scheme for bearers, similar to VoIP, that is, voice services are also performed on LTE networks. The VOLTE voice solution is an IMS-based voice service, and the related data transmission of the voice service is implemented through the LTE network. Compared with the first single-card dual-standby and single-card single-standby voice solution, the connection waits. The time is shorter, the voice and video call is better, and the user experience is significantly higher than the traditional CS voice.

However, insufficient network coverage of LTE or other reasons may cause the LTE signal of the terminal to be weakened, that is, the continuity of the call may be affected. In order to ensure the consistency of the voice service of the user, in the existing solution SRVCC (Single Radio Voice Call Continuity), when the terminal initiates the IMS voice service under the LTE network, if the network side detects that the LTE signal is weakened and is insufficient to support In the case of continuing the current call, the current call is transferred from the LTE network to the 2G/3G network, that is, the voice service is transferred from the E-UTRAN network to the 3GPP UTRAN/GERAN network, thereby avoiding the user's voice call because of the LTE signal. The fading is interrupted, ensuring the continuity of the user's call.

The applicant found that in the above SRVCC scheme, after the voice call has established a corresponding call connection, the network transfer corresponding to the SRVCC can successfully ensure that the user's voice call is not received by the terminal, but in the case that the voice call has not been connected yet, The network transfer corresponding to the above SRVCC scheme will not be possible, and finally the call will fail. That is to say, in the existing LTE voice solution, in the case of LTE signal attenuation, the call success rate of the voice call of the corresponding IMS service is insufficient.

Summary of the invention

Based on this, in order to solve the technical problem that the successful connection rate of the voice call of the IMS service initiated by the LTE voice solution in the traditional technology is rapidly degraded, the voice call initiation based on the VOLTE terminal is proposed. method.

A method for initiating a voice call based on a VOLTE terminal, comprising:

After the primary call is sent, the call network switching instruction sent by the eNodeB in the VOLTE call service is received;

Determining whether the terminal has received the ringing message fed back by the called terminal;

If not, the VOLTE call service is terminated by the call management module, and the dialing state interface on the display interface of the terminal is retained;

Performing network switching according to the call network switching instruction, after the handover is completed, the call management module initiates redialing of the circuit switched domain on the switched network.

In one embodiment, after the determining whether the terminal has received the ringing message fed back by the called terminal, the method further includes:

And if the terminal has received the ringing message fed back by the called terminal, performing network switching according to the call network switching instruction, and switching the primary call from the data switching domain to the circuit switched domain.

In one embodiment, the determining whether the terminal has received the ringing message fed back by the called terminal further includes:

The call management module determines whether the terminal is in a call state, and if in the call state, determines that the terminal has received a ringing message fed back by the called terminal.

In one embodiment, the ending the VOLTE call service by using the call management module further includes:

The IMS protocol stack is triggered by the call management module, and a call end instruction is sent to the eNodeB to end the VOLTE call service.

In one embodiment, the step of performing network switching according to the call network switching instruction, after the handover is completed, the step of initiating redialing of the circuit switched domain by the call management module on the switched network is specifically:

The terminal switches from the LTE network to the 3GPP UTRAN/GERAN network according to the call network switching instruction, and initiates redialing of the circuit switched domain on the 3GPP UTRAN/GERAN network by using the call management module.

In addition, in order to solve the technical problem that the successful call rate of the IMS service initiated by the LTE voice solution in the traditional technology is insufficient in the LTE signal, the voice call initiation device based on the VOLTE terminal is proposed. .

An apparatus for initiating a voice call based on a VOLTE terminal, comprising:

The call network switching instruction receiving module is configured to receive a call network switching instruction sent by the eNodeB in the VOLTE call service after the primary call is sent;

a determining module, configured to determine whether the terminal has received a ringing message fed back by the called terminal;

a VOLTE call service end module, configured to end the VOLTE call service by using a call management module when the terminal does not receive the ringing message fed back by the called terminal, and retain the dialing status on the display interface of the terminal interface;

The redialing module is configured to perform network switching according to the call network switching instruction. After the handover is completed, the call management module initiates redialing of the circuit switched domain on the switched network.

In one embodiment, the apparatus further includes a primary call network switching module, configured to perform network switching according to the call network switching instruction when the terminal has received the ringing message fed back by the called terminal, The primary call is switched from the data switching domain to the circuit switched domain.

In one embodiment, the determining module is further configured to determine, by the call management module, whether the terminal is in a call state, and if in a call state, determine that the terminal has received the feedback fed back by the called terminal. Bell message.

In one of the embodiments, the VOLTE call service termination module is further configured to trigger an IMS protocol stack by the call management module, and send a call end instruction to the eNodeB to end the VOLTE call service.

In one embodiment, the redial module is further configured to be handed over by the LTE network to the 3GPP UTRAN/GERAN network according to the call network handover command, and initiated by the call management module on the 3GPP UTRAN/GERAN network. Redialing of the circuit switched domain.

Implementation of the embodiments of the present invention will have the following beneficial effects:

After the VOLTE terminal-based voice call initiation method and apparatus are used, if the terminal initiates an IMS voice service under the LTE network, if the LTE network signal is attenuated and the terminal has not received the ringing message returned by the called party, In this case, the current IMS voice service is terminated, and the corresponding dialing state interface on the terminal is reserved, and then the call request corresponding to the previous IMS voice service is re-initiated in the circuit switched CS domain under the 2/3G network. That is to say, in the case that the terminal is not responded because the LTE network signal is attenuated, the current voice service on the data exchange PS domain ends and the call request is re-initiated on the circuit switched CS domain, thereby The call that was originally failed due to the LTE network signal attenuation is automatically redialed, and since the redial is initiated on the circuit switched CS domain, it is not affected by the data signal of the data exchange PS domain, and the terminal is initiated under the LTE network. The success rate of the call results in an improved user experience.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

among them:

FIG. 1 is a schematic flowchart of a method for initiating a voice call based on a VOLTE terminal in an embodiment; FIG.

2 is a schematic structural diagram of an apparatus for initiating a voice call based on a VOLTE terminal in an embodiment;

FIG. 3 is a schematic structural diagram of a computer device that runs the foregoing VOLTE terminal-based voice call initiation method in an embodiment.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In order to solve the technical problem that the successful connection rate of the voice call of the IMS service initiated by the LTE voice solution in the traditional technology is insufficient in the LTE signal, in this embodiment, a voice based on the VOLTE terminal is proposed. The method of initiating the call, the implementation of the method may rely on a computer program that can run on a computer system based on the von Neumann system, which can be a voice call application of the LTE terminal. The computer system may be a terminal device supporting an LTE service such as a smartphone or a tablet computer running the above computer program.

Specifically, as shown in FIG. 1 , the method for initiating a voice call based on a VOLTE terminal includes the following steps:

Step S102: After the primary call is sent, the call network switching instruction sent by the eNodeB in the VOLTE call service is received.

In a specific embodiment, when the LTE terminal supporting the VOLTE solution initiates a call, the LTE network can initiate a call, that is, the voice service initiated by the terminal can be transmitted through the LTE network, that is, the primary call sent by the terminal is the terminal in the LTE network. The IMS voice service initiated under.

Because the IMS voice service initiated by the terminal needs the voice data corresponding to the LTE network transmission, the IMS voice service needs the support of the LTE network; however, the LTE network signal at the location where the terminal is located has a weakened LTE signal for some reason. In the case of disappearing, the corresponding LTE network cannot support the IMS voice service. Therefore, the voice service needs to be switched to other networks to ensure continuity of the call. In a specific embodiment, the network-side MME (Mobility Management Entity) detects that the LTE signal is weakened and needs to switch the voice service from the PS domain to the CS domain to ensure call continuity, and then goes to the terminal through the eNodeB. The call network switching command is sent, so that the terminal receives the call network switching instruction sent by the eNodeB.

Step S104: determining whether the terminal has received the ringing message fed back by the called terminal; if yes, performing step S106: performing network switching according to the call network switching instruction, and switching the primary call from the data switching domain to the circuit switched domain If not, proceeding to step S108: ending the VOLTE call service by the call management module, and retaining the dialing state interface on the display interface of the terminal, and performing step S110: performing network switching according to the call network switching instruction, After the handover is completed, the call management module initiates redialing of the circuit switched domain on the switched network.

When receiving the call network switching instruction sent by the eNodeB, the terminal does not directly switch the call network according to the call network switching instruction, but firstly receives the vibration of the main call feedback initiated by the called terminal for the terminal at the current time. The bell message is judged, and the result of the judgment is two. First, the terminal has received the ringing message fed back by the called terminal. Second, the terminal does not receive the ringing message fed back by the called terminal. Further related steps under the above two determination results will be described below.

It should be noted that, in this embodiment, in the foregoing step S104, the process of determining whether the terminal has received the ringing message fed back by the called terminal may be: determining, by the call management module, whether the terminal is in a call state, If it is in a call state, it is determined that the terminal has received a ringing message fed back by the called terminal.

The call management module, that is, the Call Manage Module, manages the call service of the terminal, such as the origination or termination of the call, etc. In this embodiment, the current call state corresponding to the primary call initiated in step S102 can be determined by the call management module. In this embodiment, the current call state corresponding to the main call is when the terminal is in a call state, and when the terminal is in a call state, it is determined that the terminal has received the ringing message fed back by the called terminal and establishes a corresponding call. connection.

For the first determination result in the foregoing step S104, the terminal has received the ringing message fed back by the called terminal, and performs network switching according to the call network switching instruction, and the call network switching instruction is SRVCC (Single Radio Voice Call Continuity). The instruction, that is, the transfer of the currently ongoing voice service from the LTE network to the 2G/3G network, that is, the transfer of the voice service from the E-UTRAN network to the 3GPP UTRAN/GERAN network, or the voice service from the data exchange domain (PS) The domain is switched to the circuit switched domain (CS domain) to prevent the user's voice call from being interrupted due to the fading of the LTE signal, thereby ensuring the continuity of the user's call.

For the second determination result in the above step S106, the terminal does not receive the ringing message fed back by the called terminal. In this case, the primary call initiated by the terminal is not connected, that is, the terminal is initiating. The call request sent by the eNodeB to the called terminal during the main call has not been received by the called terminal, or the called terminal has received the call request but the feedback ringing message has not been sent to the terminal, and the two terminals The call connection between the two is not established, so the call network cannot switch the call network, and because the current LTE network signal is attenuated, the current LTE network is not enough to support the continuation of the current primary call, that is, at this time. The main call will have a call failure.

For the above situation, the call management module of the terminal ends the current VOLTE call service corresponding to the primary call initiated in step S102, and retains the corresponding dialing status page. That is to say, in the normal case, when the VOLTE call service is terminated, the corresponding dialing status page is also cancelled to inform the user that the current call service has been terminated. However, in this embodiment, when the LTE network signal is attenuated and the call network switching command sent by the eNodeB is received, when the current VOLTE call service is ended, the corresponding dialing state interface is not cancelled. It is kept on the display interface of the terminal. That is to say, the execution code corresponding to the shutdown dialing state interface that should be executed after the end of the call service is not executed, but the step is skipped to directly execute the next step.

In a specific embodiment, the process of ending the VOLTE call service by the call call management module may be: triggering the IMS protocol stack by the call management module, and sending a call end instruction, ie, a CALL END instruction, to the eNodeB, so that the eNodeB receives the CALL. After the END command, the voice service corresponding to the call end command is ended.

When the VOLTE call service is terminated by the call management module, the network handover is performed according to the call network handover command received in step S102, that is, the LTE network connected to the terminal is switched to the 2/3G network, and the 2/3G network after the handover is performed. Next, the re-call corresponding to the main call initiated in step S102 is re-initiated on the circuit-switched CS domain, that is, the main call is redialed on the circuit-switched CS domain.

In a specific embodiment, the local terminal switches the LTE network to which the terminal is connected to the 3GPP UTRAN/GERAN network according to the network handover instruction received in step S102, and re-initiates the call on the 3GPP UTRAN/GERAN network after the handover after the network handover succeeds. To complete the redial of the primary call initiated in step S102, and the redial of the primary call is performed on the circuit switched CS domain instead of on the data exchange PS domain, that is, does not appear A call failure because of a decay in the data network signal.

In addition, in order to solve the technical problem that the successful connection rate of the voice call of the IMS service initiated by the LTE voice solution in the traditional technology is rapidly degraded in the LTE signal, in one embodiment, as shown in FIG. 2, An apparatus for initiating a voice call based on a VOLTE terminal, comprising a call network switching instruction receiving module 102, a determining module 104, a VOLTE calling service ending module 106, and a redialing module 108, wherein:

The call network switching instruction receiving module 102 is configured to receive a call network switching instruction sent by the eNodeB in the VOLTE call service after the primary call is sent;

The determining module 104 is configured to determine whether the terminal has received the ringing message fed back by the called terminal;

The VOLTE call service end module 106 is configured to end the VOLTE call service by using a call management module when the terminal does not receive the ringing message fed back by the called terminal, and retain the dialing on the display interface of the terminal. Status interface

The redialing module 108 is configured to perform network switching according to the call network switching instruction. After the handover is completed, the call management module initiates redialing of the circuit switched domain on the switched network.

Optionally, in an embodiment, as shown in FIG. 2, the foregoing apparatus further includes a primary call network switching module 110, configured to: when the terminal has received the ringing message fed back by the called terminal, according to the The call network switching command performs network switching to switch the primary call from the data switching domain to the circuit switched domain.

Optionally, in an embodiment, the determining module 104 is further configured to determine, by the call management module, whether the terminal is in a call state, and if in the call state, determine that the terminal has received the feedback of the called terminal. Ringing message.

Optionally, in an embodiment, the VOLTE call service end module 106 is further configured to trigger an IMS protocol stack by using the call management module, and send a call end instruction to the eNodeB to end the VOLTE call service.

Optionally, in an embodiment, the redial module 108 is further configured to switch from the LTE network to the 3GPP UTRAN/GERAN network according to the call network switching instruction, and pass the call management module in the 3GPP UTRAN/GERAN network. Redialing of the circuit switched domain is initiated.

In one embodiment, as shown in FIG. 3, FIG. 3 illustrates a terminal of a von Neumann system-based computer system that operates the above-described VOLTE terminal-based voice call initiation method. The computer system may be a terminal device supporting an LTE service, such as a smart phone, a tablet computer, or a palmtop computer. Specifically, an external input interface 1001, a processor 1002, a memory 1003, and an output interface 1004 connected through a system bus may be included. The external input interface 1001 can optionally include at least a network interface 10012. The memory 1003 may include an external memory 10032 (eg, a hard disk, an optical disk, or a floppy disk, etc.) and an internal memory 10034. The output interface 1004 can include at least a device such as a display 10042.

In this embodiment, the operation of the method is based on a computer program whose program file is stored in the external memory 10032 of the aforementioned von Neumann system-based computer system, loaded into the internal memory 10034 at runtime, and then After being compiled into a machine code, it is passed to the processor 1002 for execution, so that a logic call network switching instruction receiving module 102, a determining module 104, a VOLTE call service ending module 106, and a heavy system are formed in the von Neumann system-based computer system. The dialing module 108 and the main call network switching module 110. And during the execution of the VOLTE terminal-based voice call initiation method, the input parameters are all received through the external input interface 1001, and transmitted to the memory in the memory 1003, and then input to the processor 1002 for processing, and the processed result data or The cache is cached in the memory 1003 for subsequent processing, or is passed to the output interface 1004 for output.

Program code is stored in the memory 1003, and the processor 1002 can call the program code stored in the memory 1003 to perform related functions through a bus system. For example, the various modules described in FIG. 2 (eg, the call network handover command receiving module 102, the determination module 104, the VOLTE call service termination module 106, the redial module 108, and the primary call network switching module 110, etc.) are stored in the office. The program code in the memory 1003 is described and executed by the processor 1002.

Specifically, the processor 1002: after receiving the main call, receiving a call network switching instruction sent by the eNodeB in the VOLTE call service; determining whether the terminal has received the ringing message fed back by the called terminal; if not, Ending the VOLTE call service by using a call management module, and retaining a dialing state interface on the display interface of the terminal; performing network switching according to the call network switching instruction, after the handover is completed, after the handover by the call management module Redialing of the circuit switched domain is initiated on the network.

In a further embodiment, after the processor 1002 determines whether the terminal has received the ringing message fed back by the called terminal, the processor 1002 further includes:

In a further embodiment, the processor 1002 determines whether the terminal has received the ringing message fed back by the called terminal, and specifically includes:

In a further embodiment, the processor 1002 ends the VOLTE call service by using a call management module, and specifically includes:

In a further embodiment, the processor 1002 performs network switching according to the call network switching instruction. After the handover is completed, the call management module initiates redialing of the circuit switched domain on the switched network, and specifically include:

And the terminal switches to the 3GPP UTRAN/GERAN network by the LTE network according to the call network switching instruction, and initiates redialing of the circuit switched domain by using the call management module on the 3GPP UTRAN/GERAN network.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Claims

A method for initiating a voice call based on a VOLTE terminal, comprising:

After the primary call is sent, the call network switching instruction sent by the eNodeB in the VOLTE call service is received;

Determining whether the terminal has received the ringing message fed back by the called terminal;

If not, the VOLTE call service is terminated by the call management module, and the dialing state interface on the display interface of the terminal is retained;

Performing network switching according to the call network switching instruction, after the handover is completed, the call management module initiates redialing of the circuit switched domain on the switched network.
The method for initiating a voice call based on a VOLTE terminal according to claim 1, wherein the determining whether the terminal has received the ringing message fed back by the called terminal further comprises:

And if the terminal has received the ringing message fed back by the called terminal, performing network switching according to the call network switching instruction, and switching the primary call from the data switching domain to the circuit switched domain.
The method for initiating a voice call based on a VOLTE terminal according to claim 2, wherein the determining whether the terminal has received the ringing message fed back by the called terminal further includes:

The call management module determines whether the terminal is in a call state, and if in the call state, determines that the terminal has received a ringing message fed back by the called terminal.
The VOLTE terminal-based voice call initiation method according to claim 1, wherein the ending the VOLTE call service by using the call management module further includes:

The IMS protocol stack is triggered by the call management module, and a call end instruction is sent to the eNodeB to end the VOLTE call service.
The method for initiating a voice call based on a VOLTE terminal according to claim 1, wherein the network switching is performed according to the call network switching instruction, and after the handover is completed, the call management module is used on the switched network. The steps of initiating redialing of the circuit switched domain are as follows:

And the terminal switches to the 3GPP UTRAN/GERAN network by the LTE network according to the call network switching instruction, and initiates redialing of the circuit switched domain by using the call management module on the 3GPP UTRAN/GERAN network.
An apparatus for initiating a voice call based on a VOLTE terminal, comprising:

The call network switching instruction receiving module is configured to receive a call network switching instruction sent by the eNodeB in the VOLTE call service after the primary call is sent;

a determining module, configured to determine whether the terminal has received a ringing message fed back by the called terminal;

a VOLTE call service end module, configured to end the VOLTE call service by using a call management module when the terminal does not receive the ringing message fed back by the called terminal, and retain the dialing status on the display interface of the terminal interface;

The redialing module is configured to perform network switching according to the call network switching instruction. After the handover is completed, the call management module initiates redialing of the circuit switched domain on the switched network.
The apparatus for initiating a voice call based on a VOLTE terminal according to claim 6, wherein the apparatus further comprises a primary call network switching module, configured to receive a ringing feedback from the called terminal after the terminal has received In the message, the network switching is performed according to the call network switching instruction, and the primary call is switched from the data switching domain to the circuit switched domain.
The device for initiating a voice call based on a VOLTE terminal according to claim 7, wherein the determining module is further configured to determine, by the call management module, whether the terminal is in a call state, and if in a call state, determine The terminal has received a ringing message fed back by the called terminal.
The apparatus for initiating a voice call based on a VOLTE terminal according to claim 6, wherein the VOLTE call service end module is further configured to trigger an IMS protocol stack by the call management module, and send a call end instruction to the eNodeB. End the VOLTE call service.
The apparatus for initiating a voice call based on a VOLTE terminal according to claim 6, wherein the redial module is further configured to switch from the LTE network to the 3GPP UTRAN/GERAN network according to the call network handover command, and pass the The call management module initiates redialing of the circuit switched domain on the 3GPP UTRAN/GERAN network.