3 Definitions, abbreviations and symbols

04.353GPPBroadcast network assistance for Enhanced Observed Time Difference (E-OTD) and Global Positioning System (GPS) positioning methodsLocation Services (LCS)Release 1999TS

3.1 Definitions

For the purposes of the present document, the following terms and definitions apply.

E-OTD Assistance Data Message: E-OTD Assistance Data contains the RTD and BTS coordinates of the neighbours that should be used in E-OTD measurements. This E-OTD Assistance Data is broadcasted using CBCH channel using SMSCB DRX service. The reception of this broadcast message enables MS to calculate its own location.

GPS Assistance Data Message: GPS Assistance Data Message contains GPS differential corrections. The reception of this broadcast message enables MS to have calculate more accurate location estimate.

3.2 Abbreviations

Abbreviations used in the present document are listed in 3GPP TS 01.04 [1].