J
Jiyun Shen
Researcher at NTT DoCoMo
Publications - 96
Citations - 791
Jiyun Shen is an academic researcher from NTT DoCoMo. The author has contributed to research in topics: Base station & Terminal (electronics). The author has an hindex of 15, co-authored 96 publications receiving 782 citations.
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Patent
Positioning system, positioning method, and positioning program
TL;DR: In this article, a positioning server for estimating a location of a cellular terminal is presented, which has a distance information acquisition unit for acquiring information indicating distances calculated based on radio waves transmitted and received between a plurality of cellular base stations 30 and the cellular terminal 20.
Patent
Positioning System and Positioning Method
TL;DR: In this paper, a positioning server consisting of a reception state information acquisition component and an end decision component is proposed to determine whether or not to end the position estimation on the basis of a specific end condition.
Patent
Indoor/outdoor decision apparatus and indoor/outdoor decision method
Jiyun Shen,Yasuhiro Oda +1 more
TL;DR: In this article, an appropriate indoor/outdoor decision is made for a mobile communication terminal in accordance with a purpose of selection of a positioning method or the like, a positioning server is used for making an indoor or outdoor decision on whether a mobile communications terminal is located indoors or outdoors.
Journal ArticleDOI
Joint Processing of Analog Fixed Beamforming and CSI-Based Precoding for Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands
Patent
Transmission apparatus and receiving apparatus
TL;DR: In this article, a transmission apparatus used in a radio communication system adopting the OFDM scheme is disclosed. The transmission apparatus includes: a dividing inverse Fourier transform part including plural transform parts.