Patent ID: 8717862
Filing Date: 2014-05-06
Classification: H04B,H04L,H04M

Abstract:
1. A method for determining coupling coefficients between a plurality of communication links, the method comprising: providing a respective pilot signal for the plurality of communication links, wherein the respective pilot signal comprises a pilot symbol sequence and is used for at least one of channel estimation or synchronization; adding a respective test signal to the respective pilot signal of the plurality of communication links to form respective combined signals, wherein each of the respective test signals comprises test symbol sequence, and the pilot symbol sequence is orthogonal to the test symbol sequence; receiving, from a far-end device of the plurality of communication links, information regarding signals received at the far-end device; and generating modified information signals by multiplying a pre-compensating matrix to information signals of a plurality of users, wherein the pre-compensating matrix is determined based on the received information regarding the signals received at the far-end device; and transmitting the respective combined signal, wherein