Telecommunications – Receiver or analog modulated signal frequency converter – Plural receivers
Patent
1991-03-22
1993-04-13
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Plural receivers
4552771, 375100, 370 951, H04B 1702
Patent
active
052030261
ABSTRACT:
The invention relates to the selection of an antenna in a receiver of a mobile radio station which forms part of a time-multiplexed radio communication system. The signal strength of each antenna is measured in each time slot which immediately precedes the time slot intended for the station concerned, and the antenna selection is effected in dependence on the measured signal strengths. In order to eliminate the risk of unsuitable antenna selection as a result of momentary falls in signal strength, the signal strength for each antenna is measured on several occasions during the time slot in which the measurements take place. The signal-strength values for each antenna are thereafter combined linearly, so as to form a suitability measurement. The antenna having the highest suitability measurement is selected for the next arriving time slot.
REFERENCES:
patent: 3475688 (1969-10-01), Masonson
patent: 4328591 (1982-04-01), Baghdady
patent: 4513412 (1985-04-01), Cox
patent: 4531235 (1985-07-01), Brusen
patent: 4549311 (1985-10-01), McLaughlin
patent: 4633519 (1986-12-01), Gotoh et al.
patent: 4710945 (1987-12-01), Bocci et al.
Eisenzopf Reinhard J.
Keough Timothy H.
Telefonaktiebolaget L M Ericsson
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