E-OTD


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AcronymDefinition
E-OTDEnhanced Observed Time Difference (enhanced mothodology for detecting location of a transmitter, e.g. cell phone)
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Inside the Method country suburban city buildings Cell ID 1-35km 1-10km 50m-lkm 50m-lkm Cell ID +TA 1-35km 1-10km 50m-lkm 50m-lkm U-TDOA OTDOA 80m 50m 50m 50m E-OTD 50-150m 50-150m 50-150m 50-150m A-GPS 30m 40m 30-150m 200m
These include uplink time of arrival (TOA) and network-assisted GPS in the handset, along with E-OTD.
The E-OTD positioning method will function in parallel with other positioning methods in Ericsson's mobile location system.
It is an open platform that supports rich applications and leading location determination technologies like E-OTD.
According to Chris Wade, CEO of CPS, today's announcement is further validation of E-OTD as a global standardised location technology: "This is hugely significant for E-OTD - and will further drive the availability of location-enabled devices on a global basis to support the expanding market for commercial and personal safety services.
Cambridge Positioning Systems Ltd (CPS), which has developed E-OTD as the standardised GSM location solution, welcomed the filing which follows major network deployments involving network equipment and handset vendors in several US states.
the world's first E-OTD enabled handsets now in stores
CPS' Cursor(TM), based on E-OTD (Enhanced Observed Time Difference) technology, enables fast, cost-effective deployment and can achieve location accuracies to 100 metres, even in dense urban areas.
E-OTD technology has now been selected by all major U.
This will enable Siemens to rollout E-OTD enabled location-based network equipment and handsets to the growing US and other worldwide markets.
5/3G networks - GMLC support in accordance with the GSM Location Services Standard, interworking with CellPoint SMLC or network integrated SMLCs supporting other location technologies such as E-OTD or TDOA - Client-Assisted Positioning, which provides the facility for operators to utilise existing SIM gateways or SCPs as Location Providers combined with the CellPoint Location System core as the first step to introduce location services on existing applications and in a most efficient manner - Centralised SMLC support supporting CGI, NMR and TA, which allows for very efficient implementation and limits the need for costly infrastructure upgrades in the respective networks.
Nokia and Radiolinja, the Finnish mobile operator, have demonstrated good results in field trials using Nokia's enhanced observed time difference (E-OTD) positioning technology in Radiolinja's GSM900/1800 network - a breakthrough for E-OTD technology.