REFERENCE SIGNAL MEASUREMENT METHOD AND APPARATUS FOR USE IN MOBILE COMMUNICATION SYSTEM

A channel state information (CSI) acquisition method of a base station in a mobile communication system includes transmitting CSI configuration information to a terminal, selecting a beam for transmitting a beamformed CSI reference signal (BF-CSI-RS) to the terminal, transmitting the BF-CSI-RS to th...

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Bibliographic Details
Main Authors Noh Jihwan, Yoo Hyunil, Lee Keonkook, Jeong Suryong, Kim Taeyoung
Format Patent
LanguageEnglish
Published 16.02.2017
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:A channel state information (CSI) acquisition method of a base station in a mobile communication system includes transmitting CSI configuration information to a terminal, selecting a beam for transmitting a beamformed CSI reference signal (BF-CSI-RS) to the terminal, transmitting the BF-CSI-RS to the terminal using the selected beam, and notifying the terminal of a beamforming update. Also, a terminal for reporting CSI to the base station and an operation method of the terminal be provided. A base station for acquiring CSI in a mobile communication system includes a transceiver configured to transmit and receive signals, and a controller configured to control the transceiver to transmit CSI configuration information to a terminal, to select a beam for transmitting a BF-CSI-RS to the terminal, to transmit the BF-CSI-RS to the terminal using the selected beam, and to notify the terminal of a beamforming update.
Bibliography:Application Number: US201615237615