Telecommunications – Radiotelephone system – Including public cordless extension system
Patent
1997-02-21
1999-08-31
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Including public cordless extension system
455555, 455560, H04Q 720
Patent
active
059466286
ABSTRACT:
The essential functions and characteristics of a telecommunications system with cordless terminals are established by the known DECT standard. On the one hand, the invention has the task of reducing the cost of ADPCM/PCM transcoders in DECT or DECT-like systems, and on the other to improve the handover characteristics, by making an interruption-free channel changeover, even during a change of cell bundles. To that effect, all DECT interface circuits (9, 10) are jointly controlled by a central processing unit (MOB CPU) assigned only to these DECT interface circuits (9, 10). The otherwise usual ADPCM/PCM transcoders have been omitted in the DECT interface circuits (9, 10), and are now assigned to the central processing unit (MOB CPU), while their number can be reduced in comparison to known solutions. The central processing unit (MOB CPU) also takes over the switching functions for the channels offered by the DECT interface circuits (9, 10). Since the channels from different DECT interface circuits (9, 10) are in frame-synchronous form, the central processing unit (MOB CPU) can carry out an interruption-free channel change during the cell bundle change of a cordless terminal.
REFERENCES:
patent: 5418838 (1995-05-01), Havermans et al.
"Digital kommunizieren mit Dect", J. Nieder, Funkschau Oct. 1993, pp. 74-77.
"Schnurloses Telefon, Fur den 900-MHz-Bereich", H. Bauer, NTZ, vol. 38 (1985), No. 7, pp. 468-471.
"Audioprozessor vereinfacht, NF-Signalaufbereitung im Mobilfunk", W. Blaesner, NTZ, vol. 43 (1990), No. 6, pp. 446-448 and 450-451.
"CT2 Base and Handset with Build-in Modem", Wong Sie Hui et al, Motorola, Inc., 1993, pp. 110-111.
"A Business Cordless PABX Telephone System on 800 MHz Based on DECT Technology", C. Buckingham et al, IEEE Communications Magazine, January 1991, pp. 105-110.
"DECT--Cordless Functionalify in New Generaion Alcatel PABXs", V. Werbus et al, Electrical Communication, 2nd Quarter 1993, pp.172-180.
"Mobility in Private Networks", G. Havermans et al, PTR Philips Telecommunication Review, Aug. 1993, vol. 51, No. 2, pp. 35-40.
Adolphi Hans-Joachim
Endler Joachim
Geywitz Klaus
Siegmund Gerd
Veloso Artur
ALCATEL N.V.
Bost Dwayne D.
Trost William G.
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