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User roaming method and ICS (internet connection sharing) enhanced network

A technology for enhancing networks and users, applied in the field of roaming, and can solve the problems of weakening, inability to trigger services, and no longer having service processing functions.

Active Publication Date: 2012-07-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] In the ICS enhanced technology, the MSC function is weakened, no longer has the service processing function, only responsible for protocol conversion and resource management, service triggering and control are centralized to the home IMS core network, and for the traditional CS network roaming mechanism, service control and The trigger is processed by the visited MSC, so according to the existing ICS enhancement technology, when the traditional user roams to the network described in the background technology, the service cannot be triggered

Method used

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Embodiment Construction

[0065] The basic idea of ​​the present invention is that by setting the BPF, when the mAGCF receives the call establishment request message of the UE of the non-ICS enhanced network, it immediately determines the BPF to be accessed, and sends a session invitation message to the BPF; the BPF passes the L- The iFC triggers the third-party service control, and forwards the received session invitation message to the L-TAS, and the L-TAS triggers the CS service control, and acts as the proxy of the UE to establish a session with the peer end after the trigger is successful.

[0066] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0067] Figure 4 It is a schematic diagram of the ICS enhanced network architecture of the present invention, such as Figure 4 As shown, compared with the existing ICS...

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Abstract

The invention discloses a user roaming method. A BPF (Berkeley packet filter) is added to an ICS (internet connection sharing) enhanced network. The method includes: an mAGCF (mobile access gateway control function) receives call of UE (user equipment) of non-ICS enhanced network to set up request messages and then sends conversation invitation messages to the BPF; the BPF triggers third-party service control through L-iFC (local initial filter control) and transmits the received conversation inviting messages to an L-TAS (local telephony application server); and the L-TAS triggers CS (circuit switching) service control after receiving the conversation inviting messages and serves as an agency of the UE to set up a conversation with an opposite terminal after the triggering is complete. The invention further discloses the ICS enhanced network. Accessing of the UE of the non-ICS enhanced network to the ICS enhanced network is realized, communication service for the UE of the non-ICS enhanced network is realized, and accordingly compatibility of the UE of the non-ICS enhanced network to the ICS enhanced network is further realized, and services of a CS region can be realized based on an IMS (internet protocol multimedia subsystem).

Description

technical field [0001] The present invention relates to a roaming technology in an IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) network architecture, in particular to a user roaming method based on an IMS Centralized Service (ICS, IMS Centralized Service) and an ICS enhanced network. Background technique [0002] Internet Protocol (IP, Internet Protocol1) Multimedia Subsystem (IMS, IP MultimediaCore Network Subsystem) is an IP-based network architecture proposed by the Third Generation Partnership Project (3GPP, 3rd Generation Partnership Project), which builds an open The flexible business environment supports multimedia applications and provides users with rich multimedia services. [0003] IMS has nothing to do with access technology, and can provide services for packet (PS, Packet Switching) access networks such as general packet radio service (GPRS, General Packet Radio Service) and wireless local area network (WLAN, Wireless Local Area Network), as well as gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/02H04W8/04H04W80/10
CPCH04L29/06326H04L29/06217H04L65/1016H04L65/00H04L29/06312H04L65/1063H04L65/1069H04L29/06176
Inventor 陶全军郝振武吴建华
Owner ZTE CORP
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