Mobile terminating roaming forwarding for mobile communications devices

A mobile device, mobile terminal technology, applied in wireless communication, connection management, electrical components, etc., can solve problems such as wasting network resources

Active Publication Date: 2014-05-28
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can introduce a lot of delay in call setup while wasting network resources during the first call setup

Method used

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  • Mobile terminating roaming forwarding for mobile communications devices
  • Mobile terminating roaming forwarding for mobile communications devices
  • Mobile terminating roaming forwarding for mobile communications devices

Examples

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Embodiment Construction

[0038] Wireless networks around the world are in the process of being updated from second and third generation (2G / 3G) networks to Long Term Evolution (LTE, also known as 4G) networks. Until LTE networks and mobile stations fully support voice over LTE services directly, mobile stations must be able to implement Circuit Switched Fallback (CSFB) procedures in order to support voice services over 2G / 3G. CSFB requires the LTE mobile station to implement a location update procedure with the circuit-switched core network, so that the LTE mobile station is reachable for the mobile-terminated circuit-switched call. The LTE access network is configured to pass location update messages from the LTE mobile station to the 2G / 3G VMSC. When a mobile terminating call is received by the GMSC for a mobile station currently camped on LTE, the mobile station typically receives a circuit-switched paging request over LTE radio via the VMSC and the LTE access network, recognizing that it cannot be...

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Abstract

A method for delivering a mobile terminated call to a mobile device communicating with a mobile switching center (MSC) in one example comprises steps of attempting to deliver the mobile terminated call to a mobile device, receiving a message that the mobile device is no longer in the location area served by the visiting MSC and forwarding the mobile terminated call to a different visiting MSC. The mobile terminated call is forwarded directly from one VMSC to another VMSC without requiring two potentially international calls to be placed serially from the GMSC to a VMSC. This method of Mobile Termination Roaming Forwarding can reduce substantial delay in call setup while saving network resources during establishment of the first call.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of the filing date of Provisional Patent Application 61 / 434,961, filed January 21, 2011, and is incorporated by reference in its entirety. technical field [0003] The present invention relates generally to wireless communication systems, and more particularly to handling mobile-terminated calls during location updates. Background technique [0004] Today's wireless telecommunications networks provide telephone subscribers with the ability to access telecommunications services from almost anywhere in the world. Key to enabling such worldwide access is mobility management. Mobility management enables wireless networks to track the location of mobile stations so that mobile services can be delivered to them. [0005] Wireless networks are typically composed of many cells, each of which covers a small geographic area within which mobile devices, such as mobile stations, can receive mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/12H04W8/06H04W76/02
CPCH04W76/027H04W8/06H04W8/12H04W76/18H04W68/02
Inventor 田鲁R·艾吉扎克
Owner ALCATEL LUCENT SAS
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