Phase-noise resilient generation of a channel quality indicator
AssigneeQUALCOMM Incorporated
InventorsFeng Lu, Prashant Udupa Sripathi, Liang Zhao, Parvathanathan Subrahmanya, Subramanya P. Rao
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AssigneeQUALCOMM Incorporated
InventorsFeng Lu, Prashant Udupa Sripathi, Liang Zhao, Parvathanathan Subrahmanya, Subramanya P. Rao
Estimating the term…
System(s) and method(s) are provided for generating phase-noise resilient channel quality indicator(s). A pilot signal utilized to determine a channel quality indicator is rotated to be aligned to a phase reference signal. Separate noise evaluations in quadrature and in-phase directions are utilized, at least in part, to generate a net noise estimate that is phase-noise compensated or resilient. For example, various combination schemes of quadrature and in-phase noise evaluations can be exploited to generate a net noise estimate, the schemes include weighted average of in-phase and quadrature noise estimates and running averages thereof. Simulation of net noise estimates as a function of geometry conditions reveal that the combination schemes provide substantive mitigation of phase-noise, thus making CQI generation phase-noise resilient.
A method comprising:
An apparatus comprising:
A non-transitory computer program product comprising a computer-readable medium including:
An electronic device that operates in a wireless environment, the electronic device comprising:
A method comprising:
An apparatus comprising:
An electronic device that operates in a wireless environment, the electronic device comprising:
A non-transitory computer program product comprising a computer-readable medium including:
Dependencies are inferred from the claim text.