Call set-up on 800 MHz analog voice channel from 1900 MHZ digita

Details Call set-up on 800 MHz analog voice channel from 1900 MHZ digita Call set-up on 800 MHz analog voice channel from 1900 MHZ digita

1996-07-16

1999-03-02

Britton, Howard

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455439, 455443, 455444, 455452, H04B 726, H04Q 722, H04Q 738

Patent

active

058783490

ABSTRACT:
In a cellular network having a first cluster of base stations serving a first group of mobile stations over digital RF channels and a second cluster of base stations, collocated with said first cluster, for serving a second group of mobile stations over analog RF channels, wherein some of the base stations in the second cluster have cells which overlap with cells of the first cluster, a method is disclosed for setting up a call on an analog voice channel of a base station of the second cluster while a mobile station is being served on a digital control channel of a base station in the first cluster.

REFERENCES:
patent: 5457736 (1995-10-01), Cain et al.
patent: 5493693 (1996-02-01), Tanaka et al.
patent: 5504939 (1996-04-01), Mayrand et al.
patent: 5557657 (1996-09-01), Barnett
patent: 5585850 (1996-12-01), Schwaller
patent: 5657375 (1997-08-01), Connollly et al.
M. Isaksson, et al., "D-AMPS 1900--The Dual-Band Personal Communications System," Ericsson Review, 72, No. 2, (Jan. 1995), pp. 73-79.

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