CHANNEL INFORMATION FEEDBACK METHOD, USER EQUIPMENT, METHOD FOR SENDING DATA, AND BASE STATION

摘要

Disclosed are a method for feeding back channel information to coordinated cells, user equipment, a method for sending data to user equipment in coordinated cells, a base station, and a wireless communication method and system. The method for feeding back channel information to coordinated cells includes: measuring the channel qualities of downlink channels between coordinated cells and user equipment; classifying the coordinated cells into different coordinated cell classes according to the measured channel qualities; on the basis of different channel quality intervals corresponding to different coordinated cell classes, respectively selecting channel information feedback modes with different feedback enhancement degrees for different coordinated cell classes; and using the selected channel information feedback modes with different feedback enhancement degrees to determine the channel information to be fed back to the coordinated cells in each coordinated cell class according to a pre-determined order, and sending the determined channel information to the coordinated cells.