The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2022
Filed:
Aug. 24, 2020
Mrinmoy Jana, Vancouver, CA;
Jeebak Mitra, Stittsville, CA;
Lutz Hans-joachim Lampe, Vancouver, CA;
Jin Wang, Ottawa, CA;
Zhuhong Zhang, Ottawa, CA;
Mrinmoy Jana, Vancouver, CA;
Jeebak Mitra, Stittsville, CA;
Lutz Hans-Joachim Lampe, Vancouver, CA;
Jin Wang, Ottawa, CA;
Zhuhong Zhang, Ottawa, CA;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A receiver architecture is described for phase noise compensation in the presence of inter-channel interference (ICI) and inter-symbol interference (ISI), particularly for time-frequency packing (TFP) transmissions. The receiver includes a coarse phase noise (PN) estimator, a PN compensation module, an ICI cancellation module, an ISI compensation module, a FEC decoder, and an iterative PN estimator. The iterative PN estimator receives log likelihood ratio (LLR) information from the decoder and provides an iterative PN estimation to the PN compensation module. The decoder also provides LLR to the ISI compensation module, and to at least one other receiver for another subchannel that is immediately adjacent in frequency. The ICI cancellation module receives decoder output from at least one adjacent subchannel, which the ICI cancellation module uses to provide a ICI-cancelled signal.