Mobile Station Position Estimation using Remote Radio Head with Adaptive Power Control

Abstract

Abstract:The adaptive power control of CDMA (Code Division Multiple Access) communications between multiple MSs (Mobile Stations) with a link-budget based SIR (Signal-to-Interference Ratio) estimate is applied to inner loop power control algorithms. CTR (Consecutive Transmit-Power-Control Ratio) calculated from these algorithms can estimate MS speed, together with MS moving distance, but cannot estimate MS position. In this paper, RRH (Remote Radio Head) is introduced and it is concluded that BS (Base Station) calculates MS distance with CTR from one of RRHs, in addition BS that has RSSIs (Received Signal Strength Indicators) information from other two RRHs can estimate MS position.