BASE STATION FOR RECONSTRUCTING DOWNLINK CHANNEL IN MULTI-INPUT-MULTI-OUTPUT COMMUNICATION SYSTEM, AND DOWNLINK CHANNEL RECONSTRUCTION METHOD THROUGH BASE STATION

BASE STATION FOR RECONSTRUCTING DOWNLINK CHANNEL IN MULTI-INPUT-MULTI-OUTPUT COMMUNICATION SYSTEM, AND DOWNLINK CHANNEL RECONSTRUCTION METHOD THROUGH BASE STATION

A method of reconstructing a downlink (DL) channel by a base station in a multiple-input-multiple-output (MIMO) communication system includes: estimating UL channel information on the basis of an uplink (UL) pilot signal received from a user equipment; extracting at least one key parameter among com...

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Bibliographische Detailangaben
Hauptverfasser: LEE, Nam Yoon, HAN, Deokhwan
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:A method of reconstructing a downlink (DL) channel by a base station in a multiple-input-multiple-output (MIMO) communication system includes: estimating UL channel information on the basis of an uplink (UL) pilot signal received from a user equipment; extracting at least one key parameter among common parameters of the UL channel and the DL channel from the estimated UL channel information; estimating DL channel information using the UL channel information and the at least one key parameter; and reconstructing the DL channel by correcting an error between the estimated DL channel information and actual DL channel information.