Mobile unit radio communications system

Details Mobile unit radio communications system Mobile unit radio communications system

1996-09-11

1999-06-08

Nguyen, Chau

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370346, 455437, 455524, H04B 726

Patent

active

059109475

ABSTRACT:
A mobile station (14) carrier-senses the radio wave receiving levels sent from a plurality of base stations (12) and informs a master station (10) of the result via a base station (12) which has jurisdiction over that mobile station (14). The master station (10) determines the next base station (12) with which a mobile station (14) should execute communication according to the carrier sense results of a plurality of base stations (12) from each mobile station (14). Consequently, the master station (10) learns with which base station (12) each of the mobile stations (14) can execute communication and the master station (10) determines the next base station (12) to have jurisdiction over a mobile station (14) so that there is no disparity between the numbers of mobile stations (14) over which each base station (12) has jurisdiction. Thus, disparity in the numbers of mobile stations (14) under the jurisdiction of the base stations (12) can be corrected while effectively switching the jurisdiction of the mobile stations (14). Moreover, carrier sensing of radio waves from a mobile station (14) may be executed at a base station (12) instead of at a mobile station (14).

REFERENCES:
patent: 5274841 (1993-12-01), Natarajan et al.
patent: 5448569 (1995-09-01), Huang et al.
patent: 5533029 (1996-07-01), Gardner
patent: 5640414 (1997-06-01), Blakeney, II et al.
patent: 5677908 (1997-10-01), Oura
patent: 5745855 (1998-04-01), Futamura

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