APPARATUS AND METHOD FOR COMMUNICATION OF BASE STATION FOR MU-MIMO TRANSMISSION AND RECEPTION IN DISTRIBUTED ANTENNA SYSTEM
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United States of America Patent
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Issued Date -
Apr 21, 2016
app pub date -
Oct 20, 2015
filing date -
Oct 20, 2014
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Abstract
A base station acquires an arrival time at which a signal that is transmitted from a plurality of terminals arrives at a plurality of Remote Radio Heads (RRH) that are installed within a cell, calculates an arrival delay time between the plurality of terminals and the plurality of RRHs using a predetermined reference time and an arrival time of the plurality of RRHs, selects RRHs to participate in receiving the uplink MU-MIMO among the plurality of RRHs using an arrival delay time between the plurality of terminals and the plurality of RRHs, and adjusts a transmitting time of the plurality of terminals using an arrival delay time between the plurality of terminals and RRHs to participate in receiving the uplink MU-MIMO.
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