Patent ID: 9154213
Filing Date: 2015-10-06
Classification: H04B,H04L

Abstract:
1. Apparatus for processing K received signals, the apparatus comprising: a signal shifter for an input signal configured to generate one or more shifted output signals that are shifted versions of the input signal, the shifted output signals include respective time delay shifts or respective phase shifts, each time delay shift is at least zero, each phase shift magnitude is at least zero, the input signal is derived from the K received signals, K is at least 2, each of the K received signals was transmitted separately from a different one of K transmit antennas at a common transmitter end, each of the K transmitted signals were formed by transmitting a different representation of a common signal in a common frequency channel, the common signal is made up of an at least one first signal and an at least one second signal, and an at least one adder configured to generate an adder output signal that is a function of the sum of the products of i) each of the associated shifted output signals with ii) a respective one of a plurality of weights associated with that shifted output signal, the plurality of weights being determined in such a way as to reduce interference in a particular type of signal that the apparatus was designed to process.