Interference cancellation

摘要

A method to enhance coverage and/or throughput in a heterogeneous wireless network includes detecting interference between a neighboring cell and a serving cell. The method also includes cancelling the interference using an adaptive technique based on whether the interference has colliding Common Reference Signal (CRS) tones or whether the interference has colliding Dedicated Reference Signal (DRS) tones.

主权项

1. A method for cancelling interference in a wireless network, the method comprising:
detecting interference between a neighboring cell and a serving cell; and cancelling the interference based at least in part on the interference being from a Dedicated Reference Signal (DRS) tone of the neighboring cell colliding with a DRS tone of the serving cell and the DRS tone of the neighboring cell colliding with at least one of a control tone or a data tone of the serving cell; wherein cancelling the interference comprises:
estimating a channel of the neighboring cell based at least in part on a Dedicated Reference Signal (DRS) tone of the neighboring cell;cancelling the interference from the neighboring cell DRS tone to estimate a serving cell channel; andestimating the serving cell channel.