Title:
マルチレート網におけるデータ伝送
Document Type and Number:
Japanese Patent JP3887651
Kind Code:
B2
Abstract:
PCT No. PCT/GB96/01710 Sec. 371 Date Jan. 2, 1998 Sec. 102(e) Date Jan. 2, 1998 PCT Filed Jul. 17, 1996 PCT Pub. No. WO97/04610 PCT Pub. Date Feb. 6, 1997Mobile radio units communicate at a lower bit-rate than the conventional switching rate of a fixed network. Such calls are identified by mobile-to-mobile recognizers which identify characteristic bit streams and handle calls appropriately. An incoming mobile-to-mobile recognizer normally routes the call to a digital to A-law transcoder. An outgoing mobile-to-mobile recognizer normally routes calls to a high bit-rate digital to A-law transcoder. If a call is established between two mobile users the first-mobile-to-mobile recognizer diverts the signal received to a bit stuffer which provides three null bits for every bit received over the air interface. The null bits may be random numbers, but preferably include a recognizable pattern which can be detected by the second mobile-to-mobile recognizer. By such "bit sutffing" a 64 kbit/s signal can be generated from a 16 kbit/s signal with minimal signal processing and without the need to transcode to A-law and back.
Inventors:
Goets, Ian
Ganon, Stephen Mark
Munday, Peter Robert
Ganon, Stephen Mark
Munday, Peter Robert
Application Number:
JP50642497A
Publication Date:
February 28, 2007
Filing Date:
July 17, 1996
Export Citation:
Assignee:
Samsung Electronics Company Limited
International Classes:
H04W88/18
Domestic Patent References:
| JP8331086A | ||||
| JP4192637A |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
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