Communication service switching method, network system and interworking function entity

A processing method and technology for communication services, which are applied in the field of communication service switching processing methods, network systems and interworking functional entities, can solve problems such as inability to implement GERAN/UTRANCS domain service switching, inability to handle CS domain signaling processes, etc., to ensure communication The effect of quality of service

Active Publication Date: 2010-09-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of realizing the present invention, the inventors found that: because the Evolved NodeB (Evolved NodeB, hereinafter referred to as: eNB) in the existing E-UTRAN cannot handle the signaling process of the CS domain, therefore, currently CS domain service handover from GERAN / UTRAN to E-UTRAN is still not possible

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  • Communication service switching method, network system and interworking function entity
  • Communication service switching method, network system and interworking function entity
  • Communication service switching method, network system and interworking function entity

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Embodiment Construction

[0041]Since many communication services provided by operators run in the CS domain, in order to provide existing CS services in the LTE network, the prior art connects the EPS core network to the CS domain core network. like figure 1 Shown is a schematic diagram of a networking structure of GERAN, UTRAN, Evolved UMTS Terrestrial Radio Access Network (Evolved UMTS Terrestrial Radio Access Network, hereinafter referred to as: E-UTRAN) and EPS core network. according to figure 1 , a user terminal (User Equipment, hereinafter referred to as UE) is connected to the MSC of the CS core network through an interworking function entity (Interworking Function, hereinafter referred to as IWF). The IWF has the ability to simulate the Iu-CS / A interface, and the protocol stack corresponding to the Iu-CS / A interface can be configured on the IWF. When the UE communicates with the MSC, it first sends a message to the IWF. After receiving the message sent by the UE, the IWF converts it into t...

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Abstract

The embodiment of the invention discloses a communication service switching method, a network system and an interworking function entity. The method comprises the following steps: receiving a first registration request message transmitted by a user terminal at the source network, thereby completing the registration of the service IWF from a user terminal to a user terminal; receiving a second registration request message transmitted by the user terminal at the source network, and transmitting the second registration request message to a source service MME of the user terminal, so that the user terminal completes the registration to the source service MME; and receiving a switching request message from the user terminal at the source network, and forwarding the switching request message to the source service MME, so that the source service MME executes the switching procedure and switches the user terminal to a target network. The embodiment of the invention realizes switching from GERAN/UTRAN to E-UTRAN in CS domain services, thereby avoiding service interruption in the CS domain service switching process.

Description

technical field [0001] The invention relates to communication technology, in particular to a communication service switching processing method, a network system and an interworking functional entity. Background technique [0002] The Circuit Switched (Circuit Switched, hereinafter referred to as: CS) domain mainly processes voice services. The signaling plane control entity of the CS domain is a mobile switching center / visitor location register (Mobile Switch Center / Visitor Location Register, hereinafter referred to as MSC / VLR). In the GSM / Enhanced Data Rate GSM Evolved Radio Access Network (GSM / EDGE Radio Access Network, hereinafter referred to as GERAN), the wireless access network element Base Station Controller (Base Station Controller, hereinafter referred to as: BSC) and the base station (Base Transceiver Station, hereinafter referred to as: BTS) is connected to the MSC through the A interface. In the Universal Mobile Telecommunications System (Universal Mobile Telec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/16H04W36/24H04W60/00H04W76/02H04W80/04
CPCH04W36/0066
Inventor 陈中平吴问付
Owner HUAWEI TECH CO LTD
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