Cooperating receiver selection for UMTS wireless location
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United States of America Patent
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May 14, 2013
Grant Date -
Jun 30, 2011
app pub date -
Dec 29, 2009
filing date -
Dec 29, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
For Wireless Communications Networks (WCNs) that support soft handover, cooperator receiver selection for a TDOA, AOA, TDOA/AOA, or hybrid network-based or network-overlay Wireless Location System (WLS) must contend with one or more network base stations as a serving cell. When the active set contains more than one member, two techniques for determining a set of cooperating and demodulating receivers to use in the signal collection for location estimation is disclosed. In one embodiment, the active set members are constructively reduced to a single member that is used as a proxy serving cell. In another embodiment, the information contained in the active set membership is retained and a new set of demodulating and cooperator receivers are generated based on the entire membership of the active set.
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