POSITION CALCULATION DEVICE, WIRELESS BASE STATION, POSITION CALCULATION METHOD, AND POSITIONING CONTROL METHOD

WIPO Patent Application WO/2019/031008

A1

This position calculation device for calculating the position of a user terminal that is performing DC with first and second wireless base stations is provided with: a transmission unit that transmits, to the first wireless base station, accuracy level information indicating the accuracy of positioning of the user terminal based on the type of service received by the user terminal; a reception unit that receives, from the first wireless base station, positioning information indicating the result of positioning of the user terminal carried out at the first wireless base station when the accuracy level information indicates a first accuracy level, and receives, from the first wireless base station, positioning information indicating the result of positioning of the user terminal carried out at the second wireless base station when the accuracy level information indicates a second accuracy level higher than the first accuracy level; and a position calculation unit that calculates the position of the user terminal by using the positioning information received by the reception unit.

YO NA (JP)
HAPSARI WURI ANDARMAWANTI (JP)
ISOBE SHINICHI (JP)

PCT/JP2018/018356

February 14, 2019

May 11, 2018

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NTT DOCOMO INC (JP)

H04W64/00; G01S5/02; H04M3/42; H04W16/32; H04W72/04

US20160338109A1	2016-11-17
JP2014216951A	2014-11-17
JP2010139321A	2010-06-24

ESA ( EUROPEAN SPACE AGENCY): "Motivation to study hybrid positioning capabilities for high accuracy use cases", 3GPP TSG SA WGI #78 S1-172134, 12 May 2017 (2017-05-12), XP051259627

WASHIDA, Kimihito (JP)

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