Communication system and alignment method of transcoder

Details Communication system and alignment method of transcoder Communication system and alignment method of transcoder

2006-09-22

2010-02-23

Sing, Simon (Department: 2614)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S432100, C455S439000

Reexamination Certificate

active

07668550

ABSTRACT:
When a terminal is moved to an area covered by a different switching node RNC of a radio access network, degradation of speech quality is prevented by returning a transcoder insertion connection to a transcoder-free-operation connection. When the terminal is moved and the switching node RNC of the radio access network is changed, a relocation is performed by inserting the transcoder, re-confirmation of parameter information of a bandwidth-compression coding system is requested for a local side switching node RNC and a remote side switching node RNC and, when the transcoder can be bypassed according to the confirmation, the transcoder is removed to return to the transcoder-free-operation connection mode.

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