Location determination using historical data

Details Location determination using historical data Location determination using historical data

2007-07-10

2007-07-10

Nguyen, Duc M. (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456200

Reexamination Certificate

active

10369147

ABSTRACT:
A plurality of wireless network access points (NAPs) each having a known location are provided. The wireless NAPs comprise shorter-range NAPs and longer-range NAPs. An associated precedence is assigned to each of the NAPs. A history database is to track a sequence of the NAPs accessed by a wireless device in a session. If a request for information from the wireless device is received by at least two of the NAPs, a processor determines which of the at least two NAPs has a greatest precedence and assigns same as a current NAP. The processor estimates a current location of the wireless device based on the known location of the current NAP and the known location of a previously-current NAP for the wireless device from the history database.

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