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Method and system for handling transcoding of connections handed off between mobile switching centers

A mobile application part, resident technology, applied in the field of coding in the field of communication systems

Inactive Publication Date: 2003-01-29
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The handover of this responsibility resulted in a large number of issues regarding code management, especially during connection handovers between MSCs

Method used

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  • Method and system for handling transcoding of connections handed off between mobile switching centers
  • Method and system for handling transcoding of connections handed off between mobile switching centers
  • Method and system for handling transcoding of connections handed off between mobile switching centers

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Embodiment Construction

[0031] Various aspects of the present invention will now be described in detail with reference to the drawings, wherein like parts are identified by like reference numerals throughout. In the following description, for purposes of illustration and not limitation, certain details are set forth such as particular circuits, circuit components, techniques, etc., in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments that depart from these identified details. In other instances, detailed descriptions of well-known methods, devices, and circuits are omitted so as not to obscure the description of the present invention.

[0032] The following exemplary embodiments are provided in a TDMA wireless communication system. However, those skilled in the art should understand that this access technique is for illustrative purposes only and the present invention ca...

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Abstract

A communication system supports multiple source coding and / or channel coding schemes. When a handoff is needed that transfers radiocommunication service support responsibility from a base station controlled by one MSC to a base station controlled by another MSC, signaling procedures are employed to handle the transfer as it pertains to the source coding and / or channel coding, i.e., ensuring that the new MSC links in an appropriate codec to support the handed off connection. Various techniques are described to provide such signaling, both in the direction of the new (target) MSC and in the direction of the user equipment being handed off.

Description

[0001] related application [0002] This application is related to and claims priority to US Provisional Patent Application Serial No. 60 / 174,165, entitled "Inter-MSC Handover," filed January 3, 2000, the disclosure of which is incorporated herein by reference. Background technique [0003] The present invention relates generally to coding in the field of communication systems, and more particularly to handling signaling for controlling transcoding when switching connections between Mobile Switching Centers (MSCs) in wireless communication systems. [0004] The rapid growth of commercial communication systems, especially cellular radiotelephone systems, has required system designers to find ways to increase system capacity without degrading communication quality below consumer tolerance thresholds. One technique to achieve these objectives involves changing from a system in which analog modulation is used to apply data to a carrier to a system in which digital modulation is us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/12
CPCH04W36/12
Inventor M·施蒂姆珀特P·霍格斯
Owner TELEFON AB LM ERICSSON (PUBL)
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