Methods and systems for providing enhanced position location...

Details Methods and systems for providing enhanced position location... Methods and systems for providing enhanced position location...

2011-01-25

2011-01-25

Phan, Dao L (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Position indicating

C342S367000, C342S385000

Reexamination Certificate

active

07876265

ABSTRACT:
Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.

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