How to Improve Forward Link Positioning for Cellular Networks? III. Hearability and Accuracy
How to Improve Forward Link Positioning ... ? I. Introduction 1x HDP Enhancements Enhanced Location Based Services Support in cdma2000 Enhance Downlink Positioning in WiMAX/16m How Wide A Widband Channel Should Be? IEEE ICC 2008 Tutorial, Location Based Services for Mobiles Location Based Services for Mobiles: I. Introduction Hearability Issue Hearability of a forward-link positioning system usually is quantified by how many reference signals a terminal may utilize to make a positioning fix in a pre-defined positioning duration. In theory, a terminal need measure parameters of only 4 different reference signals for a precise three-dimension fix. However, more reference signals a terminal can use, more diversity benefits a terminal may use for a more accurate positioning fix. A hearability issue of a cellular positioning network generally is a dimension limitation issue. It mostly is due to limitations of network geometry and network deployment. ...