Patent ID: 6584144
Filing Date: 2003-06-24
Classification: H04B,H04J,H04L

Abstract:
A highly bandwidth-efficient communications method, comprising:receiving a received spread signal at a base station having a multi-element antenna array with a first plurality of antenna elements arranged in a spaced vertical direction and a second plurality of antenna elements arranged in a spaced horizontal direction; said received spread signal comprising a first data signal spread over a plurality of discrete tones in accordance with a remote spreading code assigned to a remote unit for a first time period; adaptively despreading the signal received at the base station by using first despreading codes that are based on the characteristics of the received signals at the first plurality of antenna elements of said array and perform vertical beam steering; adaptively despreading the signal received at the base station by using second despreading codes that are based on the characteristics of the received signals at the second plurality of antenna elements of said array to perform horizontal beam steering; and receiving at the base station during an initialization period, a pilot spread signal comprising a known data signal spread over a plurality of discrete tones.