Channel state information measurements for license-assisted access

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United States of America Patent

PATENT NO 10063304
APP PUB NO 20150365152A1
SERIAL NO

14737957

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Systems and methods relating to accurate Channel State Information (CSI) measurements for a License Assisted Secondary Cell (LA SCell) are disclosed herein. In some embodiments, a wireless device enabled to operate in a cellular communications network according to a carrier aggregation scheme using both a licensed frequency band and an unlicensed frequency band operates to determine whether a Channel State Information Reference Symbol (CSI-RS) transmission from a LA SCell of the wireless device is present in a subframe, where the LA SCell is in an unlicensed frequency band. The wireless device further operates to process a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is present in the subframe and refrain from processing a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is not present in the subframe.

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Patent Owner(s)

  • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Jung-Fu Fremont, US 465 5737
Falahati, Sorour Stockholm, SE 234 1679
Frenne, Mattias Uppsala, SE 448 4049
Koorapaty, Havish Saratoga, US 316 4874
Larsson, Daniel Vallentuna, SE 365 5499

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