Multi-beam antenna system for cellular radio base stations

Details Multi-beam antenna system for cellular radio base stations Multi-beam antenna system for cellular radio base stations

1997-06-05

2000-12-26

Hunter, Daniel S.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455272, 455273, 455132, 455137, H04Q 720

Patent

active

061672866

ABSTRACT:
A base transceiver station operating a sectorized cell of a cellular radio system operates a plurality of narrow uplink main receive beams, and one or a plurality of uplink diversity received beams. A scanning means scans each of the uplink main receive beams to locate a communications channel on the main uplink beams. A diversity receiver receives a diverse beam signal from the diverse beam(s), which is compared with a beam signal received from a main uplink beam, and the main beam signal from the main beam, or a diverse beam signal from the diversity antenna is selected, depending on the comparative signal to noise ratio and signal strength of the main beam signal and diversity beam signal.

REFERENCES:
patent: 5563610 (1996-10-01), Reudink
patent: 5581260 (1996-12-01), Newman
patent: 5680142 (1997-10-01), Smith et al.
patent: 5714957 (1998-02-01), Searle et al.
patent: 5754138 (1998-05-01), Turcotte et al.
patent: 5757318 (1998-05-01), Reudink
patent: 5856804 (1999-01-01), Turcotte et al.

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