Point to multipoint radio access system

Details Point to multipoint radio access system Point to multipoint radio access system

1997-01-29

1998-11-17

Ton, Dang

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

H04J 316

Patent

active

058386700

ABSTRACT:
A robust and frequency-economic point to multipoint radio access microwave system combines the use of only two frequency bands and alternating polarizations. Base station antennae feeding adjacent sectors from a common base station site operate at least with different ones of two sets of channels. Moreover, sectors at adjacent base station sites (e.g., in adjacent cells) which are aligned with the sectors of the first base station site employ either a different set of channels or differing polarization. The two sets of channels can be two sets of frequencies (e.g., FDMA).

REFERENCES:
patent: 4813036 (1989-03-01), Whitehead
patent: 5649287 (1997-07-01), Forssen et al.

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