Title:
基地局、指向性受信方法、及び、プログラム
Document Type and Number:
Japanese Patent JP6658920
Kind Code:
B2
Abstract:
A base station comprises: a plurality of antennas configured to perform directional reception of initial access requests from a plurality of user terminals; a probability function generator configured to generate a probability function for a plurality of regions within a radio coverage area of the base station, the probability function having a peak at a candidate region among the plurality of regions, in which one of the plurality of user terminals has been found in a previous scan; a beam sweep controller configured to scan the plurality of regions in descending order of probabilities given by the probability function for the plurality of regions; and a power comparator configured to compare a received power level from a scanned region with a predetermined threshold value during the scanning by the beam sweep controller, and, if the received power level from the scanned region is greater than the predetermined threshold value, update the candidate region with the scanned region and stop scanning by the beam sweep controller over a remaining part of the plurality of regions.
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Inventors:
Kumar dilip
Naoto Ishii
Naoto Ishii
Application Number:
JP2018563196A
Publication Date:
March 04, 2020
Filing Date:
June 01, 2016
Export Citation:
Assignee:
NEC
International Classes:
H04B7/08; H04W16/28
Domestic Patent References:
| JP2001160773A | ||||
| JP2006166022A | ||||
| JP2014123803A | ||||
| JP2010212804A |
Other References:
Yinan Qi, Maziar Nekovee,Coordinated Initial Access in Millimetre Wave Standalone Networks,2016 IEEE Conference on Computer Communications Workshops(INFOCOM WKSHPS),2016年 4月
Attorney, Agent or Firm:
Kato Asamichi
Kiuchi Uchida
Mitsuru Aoki
Mikio Takahashi
Kiuchi Uchida
Mitsuru Aoki
Mikio Takahashi