Signal transmission method in distributed antenna system

摘要

The present invention relates to a method for a random terminal to receive a signal from a base station in a distributed antenna system (DAS), and more specifically, to a method for a terminal for receiving a signal from a base station, comprising: selecting a precoding matrix corresponding to a terminal-specific, numbered antenna from a codebook for the DAS, which is based on control information about the terminal-specific antenna to be used for communication with the terminal from among a plurality of antennas which includes antennas that are isolated from each other by a predetermined distance; and processing the received signal by using the selected precoding matrix.

主权项

1. A method for a User Equipment (UE) receiving a signal from a Base Station (BS) that has a plurality of antennas spaced from each other by at least a predetermined distance in a Distributed Antenna System (DAS), the method comprising:
receiving control information from the BS on a dedicated control channel, the control information related to a number of UE-specific antennas selected from the plurality of antennas for communication with the UE; receiving the signal; and processing the received signal using a precoding matrix selected from a DAS codebook, the precoding matrix corresponding to the number of UE-specific antennas, wherein the DAS codebook includes precoding matrices corresponding to N antennas, the precoding matrices for the N antennas including precoding matrices for M antennas as an element, and wherein M