Highly accurate PHS location service system

Author

Oono, Tomoyoshi ; Yamamoto, Ryoji ; Matsuki, Hideo ; Matsutani, Hideyuki ; Ohtsuka, Hiroyuki ; Onoe, Seim

Author_Institution

Radio Network Dev. Dept., NTT DoCoMo Inc., Kanagawa, Japan

Volume

2

fYear

2001

fDate

Sep/Oct 2001

Abstract

This paper overviews our highly accurate location service (LCS) system for the Personal Handy Phone System (PHS) infrastructure. It is an enhanced version of the PHS location service that commenced service in May 1998. The system concept, system configuration, and position estimation algorithm are described. Field test results are also presented. We show that the proposed position estimation algorithm reduces the position estimation error by about 50% compared to the conventional cell-ID-based algorithm. NTT DoCoMo Inc. started the enhanced PHS LCS in February 2001

Keywords

microcellular radio; personal communication networks; position measurement; radio tracking; PHS location service system; Personal Handy Phone System; field test results; position estimate algorithm; system concept; system configuration; Antenna measurements; Costs; Disaster management; Electronic mail; Estimation error; FCC; Global Positioning System; Intelligent transportation systems; Radio network; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-7244-1

Type

conf

DOI

10.1109/PIMRC.2001.965261

Filename

965261