RANDOM ACCESS METHOD IN BDMA SYSTEM AND RANDOM ACCESS METHOD IN PATTERN/POLARIZED BDMA SYSTEM

WIPO Patent Application WO/2017/146274

A1

A random access method in a BDMA system comprises the steps of: a terminal receiving a reference signal of at least one beam sector transmitted from an AP device; the terminal estimating whether the terminal is in the center area of the beam sector provided by the AP device or in the boundary area of the beam sector by means of the strength of the reference signal; the terminal transmitting preambles that are different from each other to the AP device in accordance with the location information of whether the terminal is located in the center area or the boundary area; and the AP device determining a target beam sector, for transmitting information about uplink resources to be used by the terminal, among the plurality of beam sectors on the basis of the received preambles

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JP2010531614	Methods and equipment for improving radio resource allocation in MIMO systems

CHO DONG HO (KR)
CHUNG BYUNG CHANG (KR)
PARK DAE HEE (KR)
HAN JOO SANG (KR)
KIM YUN SIK (KR)

PCT/KR2016/001697

August 31, 2017

February 22, 2016

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KOREA ADVANCED INST SCI & TECH (KR)

H04B7/04; H04W74/00; H04B7/06; H04W72/04; H04W74/08

WO2014051405A2	2014-04-03
WO2009116819A2	2009-09-24
WO2015030520A1	2015-03-05
WO2012091342A2	2012-07-05

US20130177102A1

2013-07-11

NAM, Jung Kil (KR)

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