Method and device for channel estimation with colliding interference cancellation

摘要

The method comprises receiving a signal comprising a symbol-carrier matrix, the symbol-carrier matrix comprising a predetermined pattern of reference symbols, the reference symbols comprising a target reference symbol, determining a first channel estimate vector based on demodulating received reference symbols with known reference symbols, and determining a second channel estimate vector by multiplying the first channel estimate vector with an interference cancellation matrix, wherein the second channel estimate vector includes an interference cancelled channel estimate at a position of the target reference symbol.

主权项

1. A method of channel estimation in a multiple carrier communication system, the communication system comprising a number of sources, the method comprising:
receiving a signal comprising a symbol-carrier matrix, the symbol-carrier matrix comprising a predetermined pattern of reference symbols, the reference symbols comprising a target reference symbol; determining a first channel estimate vector based on demodulating received reference symbols with known reference symbols; and determining a second channel estimate vector by providing a weight component vector and a cross-talk component vector, wherein the weight component vector and the cross-talk component vector are related to a number N of reference symbol positions including the target reference symbol and N−1 reference symbols disposed in an environment of the target reference symbol in the symbol-carrier matrix, and by multiplying the first channel estimate vector with an interference cancellation matrix, wherein the second channel estimate vector includes an interference cancelled channel estimate at a position of the target reference symbol.