Patent ID: 8837269

Claim:
A process for cancelling inter-cell interference between neighboring cells in a synchronized OFDM communication system by allowing communication between a user equipment (UE) comprising at least two antennas and a first base station in a first cell, the process comprising: arranging a communication channel between the first base station and a neighboring base station; using the communication channel to provide to the first base station from the neighboring base station information relevant to communicating between the neighboring base station and a strongest interfering UE signal from an interfering UE in the neighboring base station's cell, wherein the strongest interfering UE signal is interfering with the UE in the first cell; and communicating, by the first base station to the UE, information comprising downlink control information and extended downlink control information, wherein the extended downlink control information comprises information received from the neighboring base station comprising rate of coding and modulation type, the extended downlink control information being adaptable by the UE for cancelling interference from the strongest interfering UE signal from the neighboring base station's cell, the cancelling of interference comprises: decoding the strongest interfering UE signal based on the extended downlink control information; re-injecting the decoded strongest interfering UE signal into a re-encoder for the purpose of re-generating OFDM symbols corresponding to the strongest interfering UE signal; and subtracting the re-generated OFDM symbols in a cancellation loop.