CPS meets E-911 requirements in tests

3 Nov 2002 at 20:56 GMT Timo Poropudas

Cambridge Positioning Systems Ltd (CPS) on Friday announced that its E-OTD (Enhanced Observed Time Difference) technology has met the FCC's E-911 accuracy requirements. The week before CPS refuted claims by BWCS consulting company about E-OTD technology not being able to meet the requirements at all. This is the main E-911 location method chosen by GSM network operators. Confirming that the FCC's October 2002 accuracy requirements had now been met, T-Mobile - that uses CPS' technology - also announced plans to speed E-OTD deployment with new network upgrades and equipment rollouts. The new E-OTD test results by CPS show substantially improved location accuracy. In field trials CPS delivered accuracy performance of 46m (67% of the time) and 92m (95%) - well within the FCC's October 2003 requirement of 50m/67% and 150m/95%.