Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1996-09-26
1999-10-05
Vo, Nguyen
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455132, 455272, H04B 138, H04M 100
Patent
active
059638745
ABSTRACT:
A radio station includes a base station for wireless telecommunication to/from mobile stations. The radio station is expandable with several units, at least one of which includes a receiver, a transmitter, and a device for diversity reception, and each of which includes an antenna that is arranged at a predetermined distance from on or several antennas in the other units. The antennas forming part of each unit are adapted for reception with space diversity in cooperation with at least one antenna in any of the other units. The antennas within each unit can receive signals with different directions of polarization. An optimum input signal is input to the receiver by evaluating the input signals from the antennas in the diversity reception device. The input signals originate from the reception with the antennas which are arranged at different positions in space and also from the reception with different directions of polarization. Each unit includes an attachment arrangement to ensure a predetermined placement relative to other units with respect to distance and direction.
REFERENCES:
patent: 5203018 (1993-04-01), Hirose
patent: 5355520 (1994-10-01), Freeburg et al.
Author-McMurdo Silver; Title-Scoop| $25 Will Equip Your Superhet for Dual Diversity Reception; Source-Radio News, Dec. 1938; pp. 8,9,48,49.
Telefonaktiebolaget LM Ericsson
Vo Nguyen
LandOfFree
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