Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
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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McGinn IP Law Group PLLC
NEC Corporation
Sing Simon
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