WIRELESS COMMUNICATION SYSTEM FOR HIGH-SPEED MOVING OBJECT THAT MOVES ALONG FIXED ROUTE

摘要

The present invention relates to a method in which a signal is transmitted between a base station and a terminal in a multi-antenna wireless communication system. The method transmits pre-estimated channel information to the terminal when the terminal moves to a specific position when channel estimation for a specific position is performed. As for the terminal which moves along a fixed route or the route of which can be estimated, the position of the terminal in the near future can be easily detected. Therefore, the transception of channel information can be performed in a more efficient manner in consideration of the above-described special environment.

主权项

1. A method of transmitting a signal from a base station to a user equipment (UE) in a multi-input multi-output (MIMO) wireless communication system, the method comprising:
determining a transmission and reception scheme of the UE based on channel information previously measured at a specific position from a first UE; checking whether a second UE moves to the specific position; and transmitting, to the second UE moving to the specific position, one or more of the transmission and reception scheme determined at the specific position or the channel information previously measured at the specific position, when the second UE moves to the specific position.