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Method and device in a telecommunications network

A technology of telecommunication network and circuit switching, applied in the field of telecommunication network, can solve the problem of no access, etc., and achieve the effect of reducing the complexity of the composition

Active Publication Date: 2016-09-28
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] A problem with contemporaneous solutions for provisioning calls to multiple terminals, including GSM terminals, is that the MGCF does not have access to any location information of the called subscriber's GSM terminal 24
[0019] - Applying location lookups leads to additional call setup time before a call is setup to the subscriber

Method used

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  • Method and device in a telecommunications network
  • Method and device in a telecommunications network
  • Method and device in a telecommunications network

Examples

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Embodiment Construction

[0040] figure 2 Shows a signaling diagram of a method according to an embodiment of the present invention; the signaling is used in relation to figure 1 used within the described architecture. However, it will be appreciated that the invention is not limited to this architecture and its associated signalling, but may also be applied to other architectures and their associated signaling.

[0041] To set up a call to a Global System for Mobile Communications (GSM) mobile terminal, the Serving Call Session Control Function (S-CSCF) 10 sends a session establishment session to the Media Gateway Controller (MGC) 16 in the form of a Session Initiation Protocol (SIP) INVITE message to the Media Gateway Controller (MGC) 16. Request message 500. The MGC terminates SIP signaling (ie, acts as an endpoint for SIP signaling) and transforms this information into Integrated Services Digital Network (ISDN) User Part (ISUP) signaling for communication with circuit switched telecommunications...

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Abstract

A method in a switching node of a circuit-switched telecommunication network, comprising the steps of receiving from the packet-switched telecommunication network a request to set up a call to a mobile station of the circuit-switched telecommunication network, and sending a request for instruction message to a location register, The instruction includes one or more parameters for allowing call setup to the mobile station to proceed. Upon receipt of the one or more parameters from the location register, a call to the mobile station is established using at least one of the one or more parameters. Additionally, at least one of the one or more parameters is sent to a packet-switched telecommunications network. The at least one or more parameters sent to the packet-switched telecommunications network relate to the location of the mobile station. Thus, an entity within a packet switched telecommunication network (e.g. an IMS network) that handles a terminating call for a call delivered to a circuit switched telecommunication network access (e.g. GSM) receives a communication with the connected party (i.e. the party receiving the call ( Mobile terminal)) related location information. This information is received transparently in SIP signalling.

Description

technical field [0001] The present invention relates to a method and a device in a telecommunication network, and in particular, a method in a mobile switching node and a method in a location register of a telecommunication network and corresponding devices to provide location information of a called mobile terminal. Background technique [0002] The IP Multimedia Subsystem (IMS) is an architectural framework for delivering Internet Protocol (IP) multimedia services. It builds a way to provide Internet-based multimedia services, including voice calls, to various wireless telecommunication networks such as Global Mobile Communications (GSM), Wireless LAN and Universal Mobile Telecommunications System (UMTS) and fixed line networks and messaging. One protocol used in IMS networks is the Session Initiation Protocol (SIP). A terminal used with an IMS network is called a SIP terminal. [0003] figure 1 An architecture is shown for handling a terminating IMS call, by which a c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W8/12H04L29/08H04W76/02
CPCH04L12/1485H04L65/1016H04L65/1069H04W8/08H04W4/025H04W76/12H04L65/1104
Inventor 罗希尔·奥古斯特·卡斯帕·约瑟夫·诺尔德斯
Owner TELEFON AB LM ERICSSON (PUBL)
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