Radio Frequency Pattern Matching (RFPM)
Works best in dense urban and indoor areas, for emergency and safety-of-life applications.
Utilizing RF pattern matching to measure mobile movement
Radio Frequency Pattern Matching (RFPM) is the only high accuracy, software-based, scalable location solution that requires no additional hardware changes/additions to the mobile phone or at the network base stations. Polaris Wireless' version of RFPM, Wireless Location Signatures (Polaris WLSTM), uses radio frequency pattern matching to compare mobile measurements (signal strengths, signal-to-interference ratios, time delays, etc.) against a geo-referenced database of the mobile operator’s radio environment, as depicted below:
Best for mission-critical and safety-of-life applications
Polaris WLS is able to locate any device in Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA2000), Integrated Digital Enhanced Network (iDEN), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 3GPP Long Term Evolution (LTE) networks. Polaris WLS works extremely well in non line-of-sight conditions, such as dense urban and indoor environments, where GPS-based solutions are challenged. Since it is independent of line-of-sight conditions, Polaris WLS is highly reliable and is ideal for mission-critical and safety-of-life applications.