These methods compare the radio signal received to a database of standard signal characteristics, such as reflections and echoes. Using this information from several cell site receivers, the caller location can be computed and sent to the PSAP. This technique works best in urban environments where lots of structures exist to provide the needed reflections. It works with any phone – digital, analog, TDMA, GSM, CDMA, etc.
A key player in the field of Wireless Location Signatures (WLS) is Polaris Wireless. To learn more about their WLS offerings, check out http://www.polariswireless.com/our-technology
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