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Method and device for processing circuit switch domain services under ISR scene

A circuit switching domain and service processing technology, applied in the circuit switching domain service processing field in the ISR scenario, can solve the problems of complex CS domain service process processing, and achieve the effect of simplifying the service process processing, reducing the delay, and ensuring the processing.

Active Publication Date: 2010-02-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] In the process of implementing the present invention, the inventors found that the disadvantage of the prior art is that when the network side provides CS domain services to user equipment, the MME knows that it is a CS domain service after receiving the paging message delivered by the SGSN. After the UE responds to the paging on the LTE network, it will perform CS Fallback and switch to the GERAN / UTRAN network, which complicates the business process processing in the CS domain

Method used

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  • Method and device for processing circuit switch domain services under ISR scene
  • Method and device for processing circuit switch domain services under ISR scene
  • Method and device for processing circuit switch domain services under ISR scene

Examples

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Embodiment 1

[0059] Figure 5 Shown is a flowchart of an embodiment in which the mobility management entity determines that the information of the Gs interface or the SGs interface of the mobile switching center is to maintain the Gs interface association, then the mobility management entity sends a message to the mobile switching center to establish the SGs interface association.

[0060] The signaling process is described as follows:

[0061] 1: The UE has performed joint attachment of the packet domain and the circuit domain (GPRS / IMSI), that is, the MSC has maintained the Gs interface association. The MSC receives an initial address message (Initial Address Message, IAM) or a forwarded short message (Forward Short Message).

[0062] 2: The MSC / VLR sends a Page message (IMSI, VLR TMSI, Location Information) to the SGSN through the Gs interface.

[0063] 3a: SGSN receives paging message from MSC / VLR. SGSN sends a CS domain paging message (CS domain indicator) to the radio network subs...

Embodiment 2

[0095] In this embodiment, after the MME knows that the SGs interface association held by the MSC is released, it sends a message to the MSC to establish the SGs interface association.

[0096] When the mobility management entity MME determines that the SGs interface association held by the mobile switching center has been released, the MME can set information indicating that the SGs interface has been released, such as setting a special flag to indicate that the SGs interface association has been released, or it can Setting the interface state in the context indicates that the SGs interface association has been released, etc.; when the mobility management entity learns that the user equipment is in an active state, it sends a message to the mobile switching center according to the special identifier to establish the SGs interface association. The following only takes setting a special flag on the MME as an example for illustration.

[0097] Image 6 Shown is a flow chart of ...

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Abstract

The invention discloses a method for processing circuit switch domain services under an ISR scene, which is to guarantee the process of CS services in an LTE network. The method comprises the following steps that: a mobile management entity determines the interface information of a mobile switching center; and the mobile management entity sends a message to the mobile switching center so to establish SGs interface link after determining that no SGs interface link is established in the mobile switching center. The device comprises an interface information determining unit for determining the interface information of the mobile switching center, and an SGs interface establishing unit for sending a message to the mobile switching center so to establish SGs interface link if no SGs interface link is established in the mobile switching center. The invention is suitable for processing circuit switch domain operation under signaling saving scene in idle mode.

Description

technical field [0001] The present invention relates to the technical field of mobile communication networks, in particular to a method and device for processing circuit switched domain services in an ISR scenario. Background technique [0002] GPRS / UMTS is a mobile communication network defined by 3GPP and has been widely deployed. Including radio access network (Radio Access Network, RAN) and core network (Core Network, CN) two parts. The CN is logically divided into a circuit switched domain (Circuit Switched Domain, CS) and a packet switched domain (Packet Switched Domain, PS). The CS domain mainly handles voice services, and the PS domain mainly handles packet services. Such as figure 1 As shown, the signaling plane control entity of the CS domain is a Mobile Switching Center / Visitor Location Register (Mobile Switch Center / Visitor Location Register, MSC / VLR), and the signaling plane control entity of the PS domain is a Serving GPRS Support Node (Serving GPRS Support ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02H04L12/56
CPCH04W76/026Y02B60/43H04W76/16Y02D30/00
Inventor 于益俊陈中平周汉
Owner HUAWEI TECH CO LTD
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