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Communication system and method for enhancing single radio voice call service continuity

A voice service, single-access technology, applied in wireless communication, connection management, electrical components, etc., can solve the problems of long voice interruption and excessive switching delay.

Inactive Publication Date: 2014-12-10
ZTE CORP
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Problems solved by technology

[0033] The technical problem to be solved by the present invention is to provide a communication system and method for enhancing the continuity of single-access voice service, which is used to overcome the shortcomings of the existing single-access voice service Access to voice service continuity due to remote device update causing too long voice interruption

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  • Communication system and method for enhancing single radio voice call service continuity
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  • Communication system and method for enhancing single radio voice call service continuity

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Embodiment Construction

[0086] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0087] The core idea of ​​the present invention is that, in order to enhance the continuity of single access voice in the switching process from the circuit switched domain (CS) to the packet switched domain (PS), when establishing a session in the circuit switched domain (CS), the MSC and P- The tunnel connection between the GWs uses the tunnel connection to bear the session. When the session is switched to the packet switching domain (PS), the bearer connection between the UE and the P-GW in the packet switching domain (PS) is established, and the P-GW will The session is switched from the tunnel connection to the bearer connection between the UE and the P-GW, and the P-GW connects the bearer connection between the P-GWs with the remote device to establish sessio...

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Abstract

A communication system and method for enhanced Single Radio Voice Call Continuity (SRVCC) are provided by the present invention. The method includes the following steps: tunnel connection is established between an enhanced Mobile Switching Center (eMSC) and a Packet Data Network Gateway (P-GW) for a User Equipment (UE) in the circuit switched domain of the source network; when a session between the UE and a remote equipment is established, the eMSC establishes the session communication from the circuit switched domain to the packet switched domain for the UE and the remote equipment via the P-GW through the established tunnel connection; and in the process of voice call continuity handover from the circuit switched domain to the packet switch domain, the bearer connection between the UE and the P-GW in the target network is established; the P-GW connects the bearer connection between the UE and the P-GW with the remote equipment, and provides the session communication between the UE and the remote equipment. The present invention can efficiently reduce the problem that the interruption duration is too long in voice call continuity handover in the art, and improve the user experience greatly.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a communication system and method for enhancing the continuity of a single access voice service. Background technique [0002] In order to maintain the strong competitiveness of the third generation mobile communication system standardization project (3rd Generation Partnership Project, referred to as 3GPP) in the field of mobile communication, 3GPP is currently working on research on the packet switched core network (Packet Switched Core, referred to as PS Core) and the evolution of the Universal Mobile Telecommunication System RadioAccess Network (UTRAN for short), the purpose is to enable the evolved PS Core (EPC for short) to provide higher transmission rates and shorter transmission delays, And support E-UTRAN (EvolvedUTRAN, evolved UTRAN), GERAN (GSM EDGE radio access network, GSMEDGE wireless access network, where GSM is the abbreviation of Global System for M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14H04W76/02
CPCH04W36/0022H04W36/00226
Inventor 陶全军谢振华游世林王鸿彦
Owner ZTE CORP
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