1. PSMMPSMM BrochureBrochure

2.  What is PSMM solution? Refer to follow document to want to know of PSMM solution in more detail

3.  Features and Merits Celizion’s Patent (Title : Network Based Location Measurement Method and system Using PSMM data) Key Concept of PSMM solution provide more accurate accuracy to Non- GPS Phone (Legacy Phone) without any S/W and H/W change phone itself It is needed to change CDMA2000 1X Mobile System (MSC, BSC, BTS) according to 3GPP2 standard According to LBS call statistics, LBS service will be activated by accuracy improvement because of low accuracy of Cell-ID positioning solution method which provide very poor accuracy between several hundred meter and several kilo meter

4.  Reference SK Telecom for CDMA2000 1X Wireless Mobile System named PSMM which adopted Celizion Engine at October 2006 Discrimination of Our Company’s Non-GPS Phone Positioning solution -. No change phone software and hardware -. Epochal Accuracy improvement than previous Cell-ID Positioning Method -. Reuse pCell database which already constructed for pCell indoor solution -. Small Affected by reduced Pilot Phase resolution than triangulation positioning method which mainly influenced by Pilot phase resolution