H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/24 (2006.01) H04L 7/033 (2006.01) H04L 7/10 (2006.01) H04L 7/00 (2006.01) H04Q 7/22 (2006.01) H04Q 7/36 (2006.01) H04Q 7/26 (2006.01) H04Q 7/30 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2054591
The present invention overcomes the prior art limitations by dividing a coverage area into very small regions or cells. The inventive system can be built as an adjunct to a wired telecommunication system such as a PBX. Advantageously, because of the relatively small size of each cell, transceivers in the inventive system can use very low transmission power, compared with a pico-cellular communications system, to communicate with a fixed transceiver. In addition, because of the relatively short distance between any two transceivers are reduced and, therefore, the multipath distortion which can affect the received signals is substantially reduced. A concomitant problem normally associated with relatively small cells is the need for a switching system which can accommodate the large amount of switching or handovers requiredto accommodate the various mobile units as they move from one cell to another. In accordance with the present invention, this problem is solved by a switching technique which is not centralized in the PBX but, rather, is effectively distributed among the individual fixed-call terminals.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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