Title :
Delivery of non-standardized assistance data in E-OTD/GNSS hybrid location systems
Author :
Martin-Escalona, Israel ; Barcelo, Francisco ; Paradells, Josep
Author_Institution :
Dept. d´´Enginyeria Telematica, Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
The paper shows the need to transmit extra assistance data in hybrid location systems. The proposal presented here uses the current network protocols in order to deliver these non-standardized assistance data in 2G/2.5G location systems. To this end, a complete analysis of the available protocols and methods of identifying a non-standard assistance data source is performed.
Keywords :
Global Positioning System; cellular radio; protocols; GNSS; GSM; assisted GPS; hybrid location systems; mobile operators; network protocols; nonstandard assistance data; observed time difference; Availability; Delay; Emergency services; Global Positioning System; Licenses; Optical wavelength conversion; Performance analysis; Proposals; Protocols; Satellite navigation systems;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1046564
