Using multiple access channels for wireless device positioning
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United States of America Patent
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Jul 12, 2016
Grant Date -
Nov 21, 2013
app pub date -
May 21, 2013
filing date -
May 21, 2012
priority date (Note) -
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Abstract
A wireless device performs a transmission on a primary and auxiliary access channels to enable reception by at least three base stations. The base stations perform a measurement on the received transmission, e.g., a time of arrival of the transmission. The base stations report their measurements to a position determination entity. The position determination entity estimates geographic position of the wireless device. One method used by the position determination entity includes tri-lateralization based on the received measurement reports.
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