Paging method and apparatus

Details Paging method and apparatus Paging method and apparatus

1996-02-29

1997-03-18

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Single message via plural carrier wave transmission

455 332, 34082544, 3403111, 379 57, H04B 104

Patent

active

056132123

ABSTRACT:
A two-way paging system utilizes four local frequencies for transmissions between pager units (22) and a central control station (20). A first local frequency (f.sub.1) carries a local clock; a second local frequency (f.sub.2) carries communications packets from the central control station to paging units; a third local frequency (f.sub.3) carries communication packets from the pager units to the central control station; and a fourth local frequency (f.sub.4) carries a status or request signal from the paging units (22) to the central control station (20). Transmissions on the fourth local frequency (f.sub.4) are in accordance with a time divided slot allocation among pager units accessing the central control station (20). For a two-way paging system having a plurality of central control stations (420.sub.x) servicing a corresponding plurality of cells, a total of eight frequencies are utilized within any one cell. Four of the utilized frequencies are the local frequencies (f.sub.1 -f.sub.4) [which may differ from cell to cell], and four of the utilized frequencies are lower power common frequencies or switching frequencies (C.sub.1 -C.sub.4) which are used to switch or hand-off a pager unit (422) traveling from one cell to another.

REFERENCES:
patent: Re32365 (1987-03-01), Sebestyen
patent: Re33417 (1990-10-01), Bhagat et al.
patent: 4644347 (1987-02-01), Lucas et al.
patent: 4644351 (1987-02-01), Zabarsky et al.
patent: 4713808 (1987-12-01), Gaskill et al.
patent: 4747122 (1988-05-01), Bhagat et al.
patent: 4823123 (1989-04-01), Siwiak
patent: 4870402 (1989-09-01), DeLuca et al.
patent: 4882579 (1989-11-01), Siwiak
patent: 4940963 (1990-07-01), Gutman et al.
patent: 4978944 (1990-12-01), Andros et al.
patent: 5043721 (1991-08-01), May
patent: 5086501 (1992-02-01), DeLuca et al.
patent: 5109400 (1992-04-01), Patsiokas et al.
patent: 5111197 (1992-05-01), Ichikawa
patent: 5117449 (1992-05-01), Metroka et al.
patent: 5142279 (1992-08-01), Jasinski et al.
patent: 5153582 (1992-10-01), Davis
patent: 5170487 (1992-12-01), Peek
patent: 5206855 (1993-04-01), Schwendeman et al.
patent: 5247700 (1993-09-01), Wohl et al.
patent: 5260986 (1993-11-01), Pershan
patent: 5285496 (1994-02-01), Frank et al.
patent: 5396496 (1995-03-01), Ito et al.
patent: 5396537 (1995-03-01), Schwendenman et al.
patent: 5463675 (1995-10-01), Gerszberg
patent: 5485463 (1996-01-01), Godoroja
patent: 5542115 (1996-07-01), Wong et al.

Affiliated with

Also associated with

Rating

Paging method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Paging method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paging method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1714367