MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202441037729 A) filed by Rakuten Symphony, Inc., Tokyo, on May 14, 2024, for 'uplink data based channel estimation in nb-iot physical layer.'
Inventor(s) include Rajesh Girmalla Teli; and Aghil Vinayak Puzhakkal.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "Embodiments disclosed herein provide a method and system for receiving, at a BS and from a UE, first and second control messages associated with first and second communication blocks, respectively. Further, at least one first control element and at least one second control element is extracted from the first and the second communication blocks, respectively. Thereafter, one or more carrier frequency offset (CFO) estimates are obtained based on the first and second control elements. Further, a weighted moving average of the one or more CFO estimates is performed to generate a decision value. The BS also determine that the decision value is above a frequency offset (FO) predetermined threshold. Thereafter, characteristics of the communication channel are estimated based on the determining that the decision value is above the FO predetermined threshold and based on the output value."
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