CHANNEL INFORMATION FEEDBACK METHOD, AND PILOT AND BEAM TRANSMISSION METHOD, SYSTEM AND DEVICE

摘要

Disclosed are a channel information feedback method, pilot and beam transmission methods, systems and devices. The channel information feedback method includes that: a base station transmits M types of pilot signals, the M types of pilot signals corresponding to M pilot ports respectively; the base station configures N pilot ports in the M pilot ports for a terminal through signalling, M being a positive integer and N being a positive integer smaller than M; and the terminal receives and detects the pilot signals from the N pilot ports, selects K pilot ports from the N pilot ports according to received signal quality, and feeds back channel information of channels formed by the K pilot ports and the terminal, K being a positive integer smaller than N.