Patent ID: 7130662
Filing Date: 2006-10-31
Classification: H04B

Abstract:
1. A method for reducing inter-cell interference between WTRUs and multi-user detection (MUD)-enabled base stations comprising: storing at each base station, a set of channel impulse response data for each of a plurality of WTRUs; selecting at least two planar points in a cell as locations of interference for each of said plurality of WTRUs; determining a set of complex antenna weights from said set of channel impulse response data and said planar points for each WTRU which maximizes a signal at each of said plurality of WTRUs while nulling said signal at all other WTRUs; such that the antenna weights are represented as {w subject to |w i |=1 for i =1,2, . . . N, and and applying said antenna weights to create partitioning of said cell, where each WRTU's signal is emphasized in its own area and deemphasized in other areas.