Patent ID: 9312978
Filing Date: 2016-04-12
CPC Classification: H04B,H04J,H04L

Claim Text:
1. A method of implementing a receiver in a wireless communication network that transmits data using a plurality of antennas, said network using a unique pilot pattern corresponding to a sector number of a sector such that no two sectors with different sector numbers have pilots in same location in their respective pilot patterns, wherein said pilot pattern comprises of pilot tones and null tones, said method comprising: estimating a channel; obtaining interference samples of desired sector at each pilot location by removing signal component from received signal; estimating a first interference covariance at all pilot locations from said samples for said desired sector; estimating a second interference covariance from said null tones; adding said first and second interference covariances obtained to get overall interference covariance estimate; and determining weights for a filter at said receiver.