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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 problems such as excessive switching delay and long voice interruption.

Inactive Publication Date: 2011-11-16
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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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

The invention discloses a communication system and a method for enhancing single radio voice call service continuity. According to the method, in a circuit switch domain of a source network, a tunnel connection between an enhanced mobile switch center (eMSC) and a packet data network gateway (P-GW) is established for UE; when a conversation is established, the eMSC passes through the P-GW and establishes conversation communication from a circuit switch domain to a packet switch domain for the UE and remote equipment by the established tunnel connection; during a switching process for the voice call service continuity, a bearing connection between the UE and the P-GW is established in the circuit switch domain; A bearing connection, which is between the UE and the P-GW, and the remote equipment are connected by the P-GW in order to establish conversation communication from the circuit switch domain to the packet switch domain for the UE and the remote equipment. According to the invention, after the switching operation, conversation is switched from the tunnel connection to the bearing connection between the UE and the P-GW, so that a problem that the interruption time is too long during the continuous switching operation can be effectively solved.

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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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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