Patent ID: 8019305
Filing Date: 2011-09-13
Classification: H04B,H04L

Abstract:
1. A method for using one receiving adaptive array with weights, slave network with slave weights and plurality of receiving antenna elements at a receiving end of a communications system for reducing associated first interference of at least one first transmitted radio signal and reducing associated second interference of each one of N second radio signals in a same frequency channel, where each one of said first transmitted radio signals and said N second transmitted radio signals are transmitted from the same transmit antenna, said method comprising the steps of: a. generating at least one said first signal and said N second signals, with N being at least 1, so said first signals have similar characteristics and individually representations of each one of said first signals and each one of said N second signals are separable at said receiving end; b. simultaneously transmitting a single representation of each one of said first signals and each one of said N second signals generated in step a. from same said transmit antenna to generate first transmitted radio signals and N second transmitted radio signals respectively in same said frequency channel so characteristics of said first transmitted radio signals are similar; c. receiving said first transmitted radio signals and said N second transmitted radio signals generated in step b. with said receiving antenna elements to generate a separate antenna output signal for each one of said receiving antenna elements including a separate first representation of said first transmitted radio signals and a separate first representation of said N second transmitted radio signals; d. separating said first representation of said N second transmitted radio signals from said first representation of said first transmitted radio signals to generate a separated second representation of said N second transmitted radio signals and separated second representation of said first transmitted radio signals for each said antenna output signal generate in step c.; e. adapting said receiving adaptive array to generate an adaptive array output signal including a representation of said first transmit radio signals with reduced associated said first interference from said separated second representations of said first transmitted radio signals generated in step d. with said receiving adaptive array primarily responding to a representation of at least part of one or more of said first transmitted radio signals so weight values are generated for associated said weights; and f. applying each one of said weight values generated in step e. to associated one of said slave weights of said slave weight network to generate a slave weight network output signal including a representation of said N second transmitted radio signals with reduced associated said second interference from said separated second representation of said N second transmitted radio signals generated in step d.