method and apparatus for adaptive channel direction information feedback in heterogeneous system

摘要

The present invention relates to a method and apparatus for channel direction information feedback in a heterogeneous system. According to one embodiment of the present invention, a method for channel direction information feedback in heterogeneous systems, coordinated multipoint transmission between the local base station and cross the base station, the user equipment in the heterogeneous is performed for, for user equipment, and precision of the quantization of channel direction information, and the reliability of the uplink feedback transmission at a given uplink feedback resource, based on the trade-off between, the channel direction information determining a total feedback bits for quantization, to the user equipment, wherein is conveyed a predetermined uplink feedback resource, to notify the total feedback bits for quantization of the channel direction information, the including. Embodiments of the present invention, furthermore, the same base station, a user equipment, a computer program product.BACKGROUND 2