Cell enhancer for cellular radio telephone system having diversi

Details Cell enhancer for cellular radio telephone system having diversi Cell enhancer for cellular radio telephone system having diversi

1985-12-16

1987-11-03

Ng, Jin F.

Telecommunications

Carrier wave repeater or relay system

Two separate way transmission

455 17, 455 33, 370 35, 379338, H04B 714

Patent

active

047047330

ABSTRACT:
A cell enhancer for use by one cellular provider in a cellular radio-telephone system particularly in a cell including a diversity function includes a first amplifier system for amplifying both up-link and down-link signals between a first set of upstream and downstream antennas and a second amplifier system for amplifying at least the up-link signals between a second set of upstream and downstream antennas. The upstream antennas have a selected minimum correlation between them to ensure that the diversity at the cell site is maintained.

REFERENCES:
patent: 3022504 (1962-02-01), Stroud et al.
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4356484 (1982-10-01), Eckhardt
patent: 4476575 (1984-10-01), Franke et al.
Anon, "2 GHz Repeater Built Without i-f", Jun. 1976, p. 16.
Oades, "The Linear RF Repeater", Jun. 1980, pp. 6.2.1-6.2.5.

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