Method and apparatus for providing time diversity

Details Method and apparatus for providing time diversity Method and apparatus for providing time diversity

1995-10-04

1998-12-08

Bocure, Tesfaldet

Pulse or digital communications

Transmitters

455103, 375308, H04L 2704

Patent

active

058481036

ABSTRACT:
The invention provides a method and apparatus for transmitting digital signaling formation to a receiver using a plurality of antennas. The invention involves applying a channel code to a digital signal producing one or more symbols. A plurality of symbol copies is made and each copy is weighted by a distinct time varying function. Each antenna which are located at two or more base stations transmits a signal based on one of the weighted symbol copies. Any channel code may be used with the invention, such as a convolutional channel code or block channel code. Weighting provided to symbol copies may involve application of an amplitude gain, phase shift, or both. The present invention may be used in combination with either or both conventional interleavers and constellation mappers.

REFERENCES:
patent: 5289499 (1994-02-01), Weerackody
patent: 5305353 (1994-04-01), Weerackody
patent: 5457712 (1995-10-01), Weerackody

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