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SamsungGranted patentNetworks & wirelessInterest 4/10

Samsung patents method to filter wireless interference using signal timing

This patent describes a system that improves wireless reception by estimating and removing unwanted signals. It works by measuring the time delays between different transmitters and the receiver to select specific filter settings that isolate the desired data from background noise.

Why it mattersThis technique could help devices maintain clearer connections in crowded areas with many overlapping wireless signals.

In the filing’s own words

A system includes: a first transmitter to transmit a first signal; a second transmitter to transmit a second signal; a receiver to receive a downlink signal, the downlink signal including a desired signal and an interference signal corresponding to the first and second signals; a processor; and memory including instructions that, when executed by the processor, cause the processor to: select an interference function based on center frequencies of the first and second transmitters and the receiver; calculate correlation values based on a first delay between the receiver and a reference transmitter, and a second delay between the first and second transmitters; select one or more filter taps based on the calculated correlation values; estimate the interference signal based on the selected one or more filter taps and the interference function; determine the desired signal from the downlink signal according to the estimated interference signal; and transmit the desired signal.

What exactly they claim (claim 1)

1. A system comprising: a first transmitter configured to transmit a first signal; a second transmitter configured to transmit a second signal; a receiver configured to receive a downlink signal, the downlink signal comprising a desired signal and an interference signal corresponding to the first signal and the second signal; a processor; and memory comprising instructions that, when executed by the processor, cause the processor to: select an interference function based on center frequencies of the first transmitter, the second transmitter, and the receiver; calculate correlation values based on a first delay between the receiver and a reference transmitter from among the first and second transmitters, and a second delay between the first and second transmitters, the first delay and the second delay being used as inputs to calculate the correlation values based on the selected interference function; select one or more filter taps based on the calculated correlation values; estimate the interference signal based on the selected one or more filter taps and the interference function; determine the desired signal from the downlink signal according to the estimated interference signal; and transmit the desired signal.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Systems and methods for adaptive selection of estimation taps
Patent number
US12750084B2
Application number
18391497
Filed
Dec 20, 2023
Granted
Sep 29, 2026
Inventors
3
Claims
20

Classified under

H04B 1/525 Electricity & electronicsH04B 1/12 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.