Patent ID: 6173005
Filing Date: 2001-01-09
Classification: H04B,H04J,H04L,H04W

Abstract:
A base-station in a communication system comprising:an interleaver outputting data that is to be transmitted to a single mobile station;a first spreader having a first portion of the data as an input and outputting the first portion spread with a first spreading code;a second spreader having a second portion of the data as an input and outputting the second portion spread with a second spreading code, wherein the first portion bypasses the second spreader and the second portion bypasses the first spreader;a third spreader having a pilot code as an input and outputting the pilot code spread with a third spreading code to produce a first pilot channel;a fourth spreader having the pilot code as an input and outputting the pilot code spread with a fourth spreading code to produce a second pilot channel;a first antenna having the first spread portion and the first pilot channel as an input; anda second antenna having the second spread portion and the second pilot channel as an input,wherein the first, second, third, and fourth spreading codes are orthogonal to one another.