CN104427524A - Voice service realization method and device - Google Patents
Voice service realization method and device Download PDFInfo
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- CN104427524A CN104427524A CN201310361964.4A CN201310361964A CN104427524A CN 104427524 A CN104427524 A CN 104427524A CN 201310361964 A CN201310361964 A CN 201310361964A CN 104427524 A CN104427524 A CN 104427524A
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- 210000003323 beak Anatomy 0.000 abstract 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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Abstract
The invention discloses a voice service realization method. The method is characterized in that when a terminal determines a current service cell supports a voice over long term evolution (VoLTE) service, determines the signal intensity of an LTE network of the current service cell meets VoLTE service conversation conditions and determines an IP multimedia subsystem (IMS) can provide services of the VoLTE service for the current service cell, executing the VoLTE service. The invention also discloses a voice service realization device. With the technical scheme of the invention, the terminal is allowed to select to execute the VoLTE service or a CSFB voice service intelligently under the condition of being not sure about whether the current service cell supports the VoLTE service or not, thereby guaranteeing the voice service not to beak effectively, and greatly improving user experience.
Description
Technical Field
The invention relates to a communication technology, in particular to a method and a device for realizing a voice service.
Background
In recent years, the deployment of Long Term Evolution (LTE) networks around the world is extremely active, telecommunication networks are undergoing a huge revolution, and Internet Protocol (IP) multimedia services directly challenge the operation roles and operation modes of telecommunication operators. At present, the proportion of the voice service income of a common traditional telecommunication operator accounts for about 70% in the operation, and with the popularization of a 3G, LTE network, the voice income of the operator can be reduced year by year. However, voice services will still be a necessary basic communication requirement for the user. Therefore, voice solutions for LTE networks are important both for the operator and the user.
LTE is defined as a new generation wireless communication standard, which is a pure packet-switched system and does not support traditional circuit-switched services, so that LTE can only provide voice services in a voice over IP manner, which undoubtedly brings many new challenges. Users expect that the voice quality of LTE networks can be equal to that of circuit-switched networks, and operators have invested a lot in circuit-switched networks to migrate voice to new networks, but this also requires a certain time to transition, where the involved commercial benefits and technical implementation difficulties are also factors that have to be considered. Currently, most operators only deploy data services on LTE networks, and voice is still provided by old Circuit Switched (CS) networks, but it is also generally considered in the industry that providing voice by using LTE networks will be the final trend. Therefore, in a foreseeable future period, two technologies, Circuit Switched Fallback (CSFB) and Voice over LTE (VoLTE) will become main solutions for solving the Voice service of the LTE terminal.
In the CSFB technique, LTE provides only data services. When the user initiates or accepts a voice call, the user falls back to the CS domain for processing. The operator does not need to deploy an IP Multimedia Subsystem (IMS), and only needs to upgrade a Mobile Switching Center (MSC) to support the IMS. This is a fast service offering scheme, but has the disadvantage of slow call connection speed. CSFB is suitable as a transition scenario before IMS deployment.
In VoLTE technology, it will become the ultimate solution when operator LTE network coverage reaches a certain continuity, even full coverage. Both the Global System of mobile communication Association (GSMA) and the Next Generation Mobile Networks (NGMN) have announced VoLTE as the only end-to-end voice solution under industry LTE. The Core service control network is an IMS network, and is matched with an LTE (Long term evolution) and packet Core Evolution (EPC) network to realize end-to-end voice and video communication services based on a packet domain. However, the deployment of VoLTE involves almost all core network elements, not only simple IMS stacking, but also the modification or docking of existing network devices is often the most difficult, VoLTE involves many new technologies, requires necessary tests and trials, and an operator needs a long time to fully implement the IMS-based VoLTE.
In summary, CSFB and VoLTE may coexist for a long period of time. The uncertainty of network coverage may affect the terminal to perform normal voice service.
Disclosure of Invention
In view of this, the main objective of the present invention is to provide a method and an apparatus for implementing a voice service, which can effectively ensure that the voice service is not interrupted, and improve user experience.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a method for realizing voice service, which comprises the following steps:
the terminal determines that a current service cell supports a voice over long term evolution (VoLTE) service, determines that the signal intensity of an LTE network of the current service cell meets VoLTE service conversation conditions, and executes the VoLTE service when determining that an IP Multimedia Subsystem (IMS) can provide the service of the VoLTE service for the current service cell.
In the foregoing solution, the determining that the signal strength of the LTE network of the current serving cell meets the VoLTE service call condition includes:
the terminal measures the signal intensity of the LTE network of the current service cell, and when the signal intensity is not smaller than the signal intensity threshold value of the VoLTE service, the signal intensity of the LTE network of the current service cell is determined to meet the VoLTE service call condition.
In the foregoing solution, the determining that the IMS can provide the service of the VoLTE service for the current serving cell includes:
and the terminal initiates a VoLTE registration request to an IMS, and determines that the IMS can provide the VoLTE service for the current service cell when determining that a response message which is returned by the IMS and can provide the VoLTE service for the current service cell can be received.
In the above scheme, the method further comprises:
determining that the current serving cell does not support VoLTE service; and/or the presence of a gas in the gas,
determining that the signal intensity of the LTE network of the current serving cell does not meet the VoLTE service call condition; and/or the presence of a gas in the gas,
when determining that the IMS can not provide the service of the VoLTE service for the current service cell, the terminal detects whether the current service cell supports a circuit switched fallback CSFB voice service or not, and executes the CSFB voice service when determining that the current service cell supports the CSFB service.
In the above scheme, the method further comprises: and when the terminal executes the CSFB voice service, switching to the LTE network of the current service cell again.
The invention also provides a voice service implementation device, which comprises: the voice service management module is used for managing the voice service; wherein,
the voice service determining module is used for determining whether a current service cell supports a voice over long term evolution (VoLTE) service, determining whether the signal intensity of an LTE network of the current service cell meets the VoLTE service call condition, and determining whether an IP Multimedia Subsystem (IMS) can provide the VoLTE service for the current service cell;
the voice service management module is configured to execute the VoLTE service when the voice service determination module determines that the current serving cell supports the VoLTE service, determines that the signal strength of the LTE network of the current serving cell meets a VoLTE service call condition, and determines that the IMS can provide the service of the VoLTE service for the current serving cell.
In the foregoing solution, the voice service determining module is further configured to determine that a current serving cell does not support a VoLTE service, and/or determine that a signal strength of an LTE network of the current serving cell does not satisfy a VoLTE service call condition, and/or determine that an IMS cannot provide a service of the VoLTE service for the current serving cell, and determine whether the current serving cell supports a circuit switched fallback CSFB voice service;
the voice service management module is further configured to execute the CSFB voice service when the voice service determination module determines that the current serving cell does not support the VoLTE service, and/or determines that the signal strength of the LTE network of the current serving cell does not satisfy a VoLTE service call condition, and/or determines that the IMS cannot provide the service of the VoLTE service for the current serving cell, and determines that the current serving cell supports the CSFB voice service.
In the foregoing solution, the voice service determining module includes: the system comprises a network environment measuring module and a voice conversation judging module; wherein
The network environment measuring module is used for measuring the signal intensity of an LTE network of a current service cell and sending the signal intensity of the LTE network to the voice session judging module;
the voice session judging module is used for determining that the signal intensity of the LTE network of the current service cell meets the VoLTE service call condition when the signal intensity of the LTE network is not smaller than the signal intensity threshold value of the VoLTE service.
In the above solution, the voice service determining module further includes a transceiver module, configured to initiate a VoLTE registration request to an IMS, and receive a response message returned by the IMS and capable of providing the VoLTE service for the current serving cell;
the voice session determining module is further configured to determine that the IMS can provide the service of the VoLTE service for the current serving cell when the transceiver module receives a response message, which is returned by the IMS and can provide the VoLTE service for the current serving cell.
In the foregoing solution, the voice service management module is further configured to switch to the LTE network of the current serving cell again after the CSFB voice service is executed.
According to the voice service implementation method and device provided by the embodiment of the invention, the terminal determines that the current service cell supports the VoLTE service, determines that the signal intensity of the LTE network of the current service cell meets the VoLTE service call condition, and executes the VoLTE service when the IMS can provide the service of the VoLTE service for the current service cell. By adopting the technical scheme of the invention, the terminal intelligently selects and executes the VoLTE service or the CSFB voice service under the condition of uncertain network coverage, thereby effectively ensuring that the voice service is not interrupted and greatly improving the user experience.
Drawings
Fig. 1 is a schematic flow chart of a voice service implementation method according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a voice service implementing apparatus according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a voice service implementation method according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic flow chart of a voice service implementation method according to a first embodiment of the present invention, as shown in fig. 1, including the following steps:
step 101: and the terminal determines that the current serving cell supports the VoLTE service.
Here, when the terminal does not determine the network environment of the terminal itself, it needs to first determine whether the terminal is in the LTE network environment, detect whether the network environment of the terminal is a serving cell supporting the LTE network, and determine whether the current serving cell supports the VoLTE service.
The terminal according to the embodiment of the present invention refers to a multimode terminal capable of supporting both LTE network services and second Generation (2G, 2nd Generation)/third Generation (3G, 3rd Generation) networks.
Step 102: and determining that the signal intensity of the LTE network of the current service cell meets the VoLTE service call condition.
Here, the determining that the signal strength of the LTE network of the current serving cell satisfies the VoLTE service call condition includes:
the terminal measures the signal intensity of the LTE network of the current service cell, uses Scur to represent the signal intensity of the LTE network of the current service cell, and uses Svolte to represent the signal intensity threshold value of the VoLTE service; and when the Scur is not less than the Svolte, determining that the signal intensity of the LTE network of the current service cell meets the VoLTE service call condition.
Step 103: and determining that the IMS can provide the services of the VoLTE service for the current serving cell.
Here, the determining that the IMS can provide the service of the VoLTE service for the current serving cell includes:
and the terminal initiates a VoLTE registration request to an IMS, and determines that the IMS can provide the VoLTE service for the current service cell when determining that a response message which is returned by the IMS and can provide the VoLTE service for the current service cell can be received.
Step 104: and the terminal executes the VoLTE service.
Preferably, the method comprises:
determining that the current serving cell does not support VoLTE service; and/or the presence of a gas in the gas,
determining that the signal intensity of the LTE network of the current serving cell does not meet the VoLTE service call condition; and/or the presence of a gas in the gas,
when determining that the IMS can not provide the service of the VoLTE service for the current service cell, the terminal detects whether the current service cell supports a circuit switched fallback CSFB voice service or not, and executes the CSFB voice service when determining that the current service cell supports the CSFB service.
And after the terminal executes the CSFB voice service, the terminal is switched to the LTE network of the current service cell again, so that the terminal can obtain better data service in the LTE network.
Fig. 2 is a schematic diagram of a structure of a voice service implementation apparatus according to a first embodiment of the present invention, and as shown in fig. 2, the apparatus includes: a voice service determination module 21 and a voice service management module 22; wherein,
the voice service determining module 21 is configured to determine whether a current serving cell supports a voice over long term evolution (VoLTE) service, determine whether a signal strength of an LTE network of the current serving cell meets a VoLTE service call condition, and determine whether an IP Multimedia Subsystem (IMS) can provide a service of the VoLTE service for the current serving cell;
the voice service management module 22 is configured to execute the VoLTE service when the voice service determination module 21 determines that the current serving cell supports the VoLTE service, determines that the signal strength of the LTE network of the current serving cell meets a VoLTE service call condition, and determines that the IMS can provide the service of the VoLTE service for the current serving cell.
Preferably, the voice service determining module 21 is further configured to determine that a current serving cell does not support a VoLTE service, and/or determine that a signal strength of an LTE network of the current serving cell does not satisfy a VoLTE service call condition, and/or determine that IMS cannot provide a service of the VoLTE service for the current serving cell, and determine whether the current serving cell supports a circuit switched fallback CSFB voice service;
the voice service management module 22 is further configured to execute the CSFB voice service when the voice service determination module 21 determines that the current serving cell does not support the VoLTE service, and/or determines that the signal strength of the LTE network of the current serving cell does not satisfy a VoLTE service call condition, and/or determines that the IMS cannot provide the services of the VoLTE service for the current serving cell, and determines that the current serving cell supports the CSFB voice service.
Preferably, the voice service determination module 21 includes: a network environment measuring module 211 and a voice session judging module 212; wherein
The network environment measuring module 211 is configured to measure a signal strength of an LTE network of a current serving cell, and send the signal strength of the LTE network to the voice session determining module 212;
the voice session determining module 212 is configured to determine that the signal strength of the LTE network of the current serving cell meets the call condition of the VoLTE service when the signal strength of the LTE network is not less than the signal strength threshold of the VoLTE service.
Preferably, the voice service determining module 21 further includes a transceiver module 213, configured to initiate a VoLTE registration request to the IMS, and receive a response message returned by the IMS and capable of providing the VoLTE service for the current serving cell;
the voice session determining module 212 is further configured to determine that the IMS can provide the service of the VoLTE service for the current serving cell when the transceiver module 213 receives a response message, which is returned by the IMS and can provide the VoLTE service for the current serving cell.
Preferably, the voice service management module 22 is further configured to, after the CSFB voice service is executed, switch to the LTE network of the current serving cell again.
The voice service determining module 21 and its sub-modules, including the network environment measuring module 211 and the voice session judging module 212, and the voice service managing module 22, in practical application, can be implemented by a Central Processing Unit (CPU) in the terminal, or a Digital Signal Processor (DSP), or a Programmable logic array (FPGA); the transceiver module 213 of the voice service determination module 21 can be implemented by a transceiver or a transceiver antenna in practical applications.
Fig. 3 is a flowchart illustrating a voice service implementation method according to a second embodiment of the present invention, as shown in fig. 3, including the following steps:
step 301 to step 302: the LTE terminal detects the network environment of the current service cell, judges whether the current service cell supports VoLTE service, and executes the step 303 when the judgment result is yes; when the judgment result is negative, step 306 is executed.
Here, when the LTE terminal does not determine the network environment of the LTE terminal, it first needs to determine whether the LTE terminal is in the LTE network environment, detect whether the network environment of the terminal is a serving cell supporting the LTE network, and determine whether the current serving cell supports the VoLTE service.
The terminal described in this embodiment refers to a multimode terminal capable of supporting both LTE network services and 2G/3G networks.
Step 303: judging whether the signal intensity of the LTE network of the current service cell meets the VoLTE service conversation condition, and executing a step 304 when the judgment result is yes; when the judgment result is negative, step 306 is executed.
Here, a signal strength threshold of the VoLTE service may be preset; the LTE terminal measures the signal intensity of the LTE network of the current service cell, Scur represents the signal intensity of the LTE network of the current service cell, and Svolte represents a preset signal intensity threshold value of the VoLTE service; and when the Scur is not less than the Svolte, determining that the signal intensity of the LTE network of the current service cell meets the VoLTE service call condition.
Step 304: judging whether the IMS can provide the service of the VoLTE service for the current service cell, and if so, executing a step 305; when the judgment result is negative, step 306 is executed.
Here, the LTE terminal initiates a VoLTE registration request to an IMS, and determines that the IMS can provide the VoLTE service for the current serving cell when determining that a response message returned by the IMS and capable of providing the VoLTE service for the current serving cell can be received.
Step 305: and the LTE terminal executes the VoLTE service.
Step 306 to step 307: the LTE terminal detects a network environment of a current serving cell, and determines whether the current serving cell supports a CSFB voice service, and if so, executes step 308; when the determination result is no, step 309 is executed.
When the LTE terminal determines that the current service cell does not support VoLTE service; and/or determining that the signal intensity of the LTE network of the current serving cell does not meet the VoLTE service call condition; and/or, when determining that the IMS cannot provide the service of the VoLTE service for the current serving cell, the LTE terminal detects whether the current serving cell supports a circuit switched fallback CSFB voice service, and executes the CSFB voice service when determining that the current serving cell supports the CSFB service.
Step 308: and the LTE terminal executes the CSFB voice service.
Here, it is the prior art that the LTE terminal performs the CSFB voice service, and details are not described here.
Step 309: and the LTE terminal is switched to the LTE network of the current service cell again, and tries to initiate the VoLTE service registration request again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. A method for implementing voice service is characterized in that the method comprises the following steps:
the terminal determines that a current service cell supports a voice over long term evolution (VoLTE) service, determines that the signal intensity of an LTE network of the current service cell meets VoLTE service conversation conditions, and executes the VoLTE service when determining that an IP Multimedia Subsystem (IMS) can provide the service of the VoLTE service for the current service cell.
2. The method of claim 1, wherein the determining that the signal strength of the LTE network of the current serving cell satisfies a VoLTE service call condition comprises:
the terminal measures the signal intensity of the LTE network of the current service cell, and when the signal intensity is not smaller than the signal intensity threshold value of the VoLTE service, the signal intensity of the LTE network of the current service cell is determined to meet the VoLTE service call condition.
3. The method of claim 1, wherein the determining that the IMS can provide the VoLTE service for the current serving cell comprises:
and the terminal initiates a VoLTE registration request to an IMS, and determines that the IMS can provide the VoLTE service for the current service cell when determining that a response message which is returned by the IMS and can provide the VoLTE service for the current service cell can be received.
4. The method of claim 1, further comprising:
determining that the current serving cell does not support VoLTE service; and/or the presence of a gas in the gas,
determining that the signal intensity of the LTE network of the current serving cell does not meet the VoLTE service call condition; and/or the presence of a gas in the gas,
when determining that the IMS can not provide the service of the VoLTE service for the current service cell, the terminal detects whether the current service cell supports a circuit switched fallback CSFB voice service or not, and executes the CSFB voice service when determining that the current service cell supports the CSFB service.
5. The method of claim 4, further comprising:
and when the terminal executes the CSFB voice service, switching to the LTE network of the current service cell again.
6. A voice service implementing apparatus, the apparatus comprising: the voice service management module is used for managing the voice service; wherein,
the voice service determining module is used for determining whether a current service cell supports a voice over long term evolution (VoLTE) service, determining whether the signal intensity of an LTE network of the current service cell meets the VoLTE service call condition, and determining whether an IP Multimedia Subsystem (IMS) can provide the VoLTE service for the current service cell;
the voice service management module is configured to execute the VoLTE service when the voice service determination module determines that the current serving cell supports the VoLTE service, determines that the signal strength of the LTE network of the current serving cell meets a VoLTE service call condition, and determines that the IMS can provide the service of the VoLTE service for the current serving cell.
7. The apparatus of claim 6,
the voice service determining module is further configured to determine that a current serving cell does not support a VoLTE service, and/or determine that a signal strength of an LTE network of the current serving cell does not satisfy a VoLTE service call condition, and/or determine whether the current serving cell supports a circuit switched fallback CSFB voice service when it is determined that the IMS cannot provide a service of the VoLTE service for the current serving cell;
the voice service management module is further configured to execute the CSFB voice service when the voice service determination module determines that the current serving cell does not support the VoLTE service, and/or determines that the signal strength of the LTE network of the current serving cell does not satisfy a VoLTE service call condition, and/or determines that the IMS cannot provide the service of the VoLTE service for the current serving cell, and determines that the current serving cell supports the CSFB voice service.
8. The apparatus of claim 7, wherein the voice service determination module comprises: the system comprises a network environment measuring module and a voice conversation judging module; wherein
The network environment measuring module is used for measuring the signal intensity of an LTE network of a current service cell and sending the signal intensity of the LTE network to the voice session judging module;
the voice session judging module is used for determining that the signal intensity of the LTE network of the current service cell meets the VoLTE service call condition when the signal intensity of the LTE network is not smaller than the signal intensity threshold value of the VoLTE service.
9. The apparatus of claim 7, wherein the voice service determining module further comprises a transceiving module, configured to initiate a VoLTE registration request to an IMS, and receive a response message returned by the IMS, where the VoLTE service can be provided for the current serving cell;
the voice session determining module is further configured to determine that the IMS can provide the service of the VoLTE service for the current serving cell when the transceiver module receives a response message, which is returned by the IMS and can provide the VoLTE service for the current serving cell.
10. The apparatus of claim 7, wherein the voice service management module is further configured to perform a re-handover to the LTE network of the current serving cell after the CSFB voice service is completed.
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| CN201310361964.4A CN104427524A (en) | 2013-08-19 | 2013-08-19 | Voice service realization method and device |
| PCT/CN2014/070746 WO2014154042A1 (en) | 2013-08-19 | 2014-01-16 | Method and apparatus for implementing voice service, and computer storage medium |
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| CN201310361964.4A CN104427524A (en) | 2013-08-19 | 2013-08-19 | Voice service realization method and device |
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