Patent ID: 8660102

Claim:
A method comprising: receiving a signal, referred to as a received signal, by a mobile station comprising at least two receiving antennas, in a cellular OFDMA-TDD communication network comprising a serving base station and at least one interfering base station, said received signal being a result of a serving signal transmitted by said serving base station which is distorted by at least one interfering signal transmitted by said at least one interfering base station, wherein said serving signal of said serving base station is transmitted with a first modulation scheme and wherein said interfering signal of said interfering base station is transmitted with a second modulation scheme, and cancelling co-channel interference in the received signal, wherein cancelling comprises: a channel estimation phase delivering a channel estimation of a channel for the serving signal, which is transmitted by said serving base station, by using serving pilots, without taking into account interfering pilots, and delivering a channel estimation of a channel for the interfering signal, which is transmitted by said at least one interfering base station, by using interfering pilots, without taking into account serving pilots, said channel estimation phase comprising choosing an appropriate method of estimating the channels for the serving signal and the interfering signal in view of at least two preambles present in said received signal, and a MIMO detecting phase, detecting symbols by using said channel estimation for said serving signal and said channel estimation for said interfering signal by using a non-linear method which uses said first modulation scheme and said second modulation scheme.