LTE/LTE—A uplink carrier aggregation using unlicensed spectrum

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United States of America Patent

PATENT NO 9883404
APP PUB NO 20140362780A1
SERIAL NO

14096686

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods, systems, and apparatuses are described for wireless communications. In one method, an uplink grant may be received over a licensed spectrum. A clear channel assessment (CCA) may be performed in response to the uplink grant to determine availability of an unlicensed spectrum. The CCA may be performed prior to a transmission associated with the uplink grant. In another method, scheduling information may be received over a licensed spectrum. An uplink grant may be transmitted over the licensed spectrum. The uplink grant may be based at least in part on the scheduling information. The uplink grant may be configured to trigger a CCA to determine availability of an unlicensed spectrum prior to a transmission associated with the uplink grant.

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Patent Owner(s)

  • QUALCOMM INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bhushan, Naga San Diego, US 710 15721
Luo, Tao San Diego, US 5041 29168
Malladi, Durga Prasad San Diego, US 593 19735
Wei, Yongbin San Diego, US 636 14179

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