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

A technology that enhances the network and users. It is applied in the field of roaming and can solve problems such as failure to trigger services, weakening, and no longer having service processing functions.

Active Publication Date: 2015-06-10
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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  • User roaming method and ICS (internet connection sharing) enhanced network
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  • User roaming method and ICS (internet connection sharing) enhanced network

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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 present invention discloses a user roaming method, and a Bounds Proxy Function network element BPF is added in an IMS Centralized Service ICS enhanced network. The method includes that a Mobile Access Gate Control Function entity mAGCF sends a session invitation message to the BPF after receiving a call establish request message from a User Equipment UE of a non-ICS enhanced network; the BPF triggers a service control of a third side by a Local Initial Filter Control L-iFC, and transfers the received session invitation message to a Local Telephony Application Server L-TAS; the L-TAS triggers a service control of a Circuit Switching CS after receiving the session invitation message, and it acts as a UE proxy to establish a session with the opposite terminal after the trigger is successful. An ICS enhanced network is also disclosed in the present invention. The present invention enables a UE to access to a non-ICS enhanced network from an ICS enhanced network, enables a communication service for a UE of a non-ICS enhanced network, accordingly enabling the compatibility of a UE of a non-ICS enhanced network with an ICS enhanced network and enabling the service of a CS based on the IMS.

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 Protocol) Multimedia Subsystem (IMS, IP Multimedia Core Network Subsystem) is an IP-based network architecture proposed by the Third Generation Partnership Project (3GPP, 3rd Generation Partnership Project), which constructs An open and flexible business environment supports multimedia applications and provides users with rich multimedia services. [0003] IMS has nothing to do with the 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), and c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/02H04W8/04H04W80/10
CPCH04L65/1016H04L65/1063H04L65/1069
Inventor 陶全军郝振武吴建华
Owner ZTE CORP