Position Monitoring Terminal Built-in Network Assisted GPS Using DoCoMo Packet Exchange Network

Yukio Yokoi, Yukihiro Kida, Kazuhiro Hatanaka, Akira Takai, Tomohiro Waki, Akira Okuyama, Akira Bandai, Akio Mitamura, and Toshifumi Momma

Abstract:	Today, the GPS technology is in wide range of applications. Still, there are needs for individual personal location as in the U.S. E911 position location mandate, vehicle location, burglar tracking, highly valuable goods tracking, animal location, and so on. In order to meet these needs, Japan Radio Co., Ltd and NTT DoCoMo Inc. have developed a compact position information terminal to work within the frame of the DLP (DoCoMo Location Platform) service for the first time. This terminal is comprised of a PDC-P (Personal Digital Cellular Packet communication) block having the packet communication capability within DoPa (DoCoMo Packet) network and the network assist type GPS receiver block; it uses the DLP service established by NIT DoCoMo Inc. for its own position reports. This paper reports the results of field evaluation tests under various environments that have successfully proved the usefulness of the terminal. This system is comprised of the DLP service, the Location Service Controller (LSC) to control the position information, and the position information terminal to report its own position implemented with the PsTP (Position Tunneling Protocol) protocol, newly developed by DoCoMo, being optimized for the DoPa network using the Location Server (LS) to determine the terminal position. DLP (DoCoMo Location Platform): The common platform service with standardized interfaces for the position information services provided by DoCoMo.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	744 - 755
Cite this article:	Yokoi, Yukio, Kida, Yukihiro, Hatanaka, Kazuhiro, Takai, Akira, Waki, Tomohiro, Okuyama, Akira, Bandai, Akira, Mitamura, Akio, Momma, Toshifumi, "Position Monitoring Terminal Built-in Network Assisted GPS Using DoCoMo Packet Exchange Network," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 744-755.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In