Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1996-05-01
1998-09-22
Marcelo, Melvin
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370342, 370522, 455422, H04J 1302
Patent
active
058125418
ABSTRACT:
An arrangement for adapting a PCM (pulse code modulation) switch to control and communicate with a CDMA (code division multiple access) cell site for communication the wireless CDMA stations that communicate with that cell site. A protocol converter converts between signals for controlling integrated services digital network (ISDN) stations and signals for controlling a cell site, so that the cell site operates as if it were being controlled by a wireless switching center and the switch acts as if it were controlling ISDN stations. In the switch, a switchable connection is established between land based inputs and intermediate ports and a separate set of permanent connections is established between the intermediate ports and the PCM/packet converters. Advantageously, a switch designed to serve ISDN stations can be readily adapted to serve cell sites for serving wireless CDMA stations.
REFERENCES:
patent: 5195090 (1993-03-01), Bolliger et al.
patent: 5438565 (1995-08-01), Hemmady et al.
patent: 5440613 (1995-08-01), Fuentes
patent: 5539729 (1996-07-01), Bodnar
Fuentes James Joseph
Mulberg Alan Stuart
Parker Charles Howard
Lucent Technologies - Inc.
Marcelo Melvin
LandOfFree
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