Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1997-08-04
1999-03-30
Nguyen, Chau
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
455560, 370389, 370395, H04Q 722
Patent
active
058897690
ABSTRACT:
A switching system includes N handover runks respectively having M terminals to be independently coupled to radio transmission lines reaching M radio base stations which respectively form radio zones which become mutually adjacent zones or peripheral zones, and coupled to remote transmission lines reaching mobile stations of other parties located in the radio zones, where M and N are integers greater than one, out of the radio transmission lines, the N handover trunks selecting each transmission line with a best transmission quality and coupling the selected radio transmission lines to the remote transmission lines; a plurality of radio interfaces distributing lines independently formed between the switching system and the M radio base stations, with respect to different N paths; a radio transmission line forming unit forming radio transmission lines in advance with respect to all combinations of each of the paths subject to the distribution by the radio interfaces and each of the terminals other than the terminals to be independently coupled to the remote transmission lines out of the terminals of the handover trunks; a call processing unit carrying out a call processing with respect to calls generated by the mobile stations located in the radio zones by cooperating with a radio channel setting control that is carried out by the radio base stations via the radio interfaces; and a remote transmission line forming unit forming the remote transmission lines by the call processing carried out by the call processing unit.
REFERENCES:
patent: 5418838 (1995-05-01), Havermans
patent: 5425031 (1995-06-01), Otsuka
patent: 5438565 (1995-08-01), Hemmady et al.
patent: 5619551 (1997-04-01), Yahagi
patent: 5646978 (1997-07-01), Klem et al.
Fujitsu Limited
Nguyen Chau
Vanderpuye Kenneth
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