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SamsungGranted patentNetworks & wirelessInterest 3/10

Samsung patents Wi-Fi method for directing signals from devices to routers

This patent describes a method for wireless local area networks where a device prepares a specific signal direction, or beam, before sending data back to a router. The device decides whether to use this focused signal based on instructions found in the header of the incoming message and the router's request. This process helps the device send its data in a targeted way rather than broadcasting it in all directions.

Why it mattersIt improves how Wi-Fi devices manage their outgoing signals, which can help reduce interference and improve connection stability in crowded wireless environments.

In the filing’s own words

An operating method of a first device communicating with a second device in a wireless local area network (WLAN), includes: receiving, from the second device, a physical layer protocol data unit (PPDU) including a payload that includes a trigger frame; preparing an uplink beamforming matrix based on a value of an uplink beamforming-related first sub-field included in a preamble of the PPDU; beamforming, according to the uplink beamforming matrix, the PPDU; and transmitting the beamformed PPDU to the second device based on a value of an uplink beamforming-related second sub-field included in the trigger frame.

What exactly they claim (claim 1)

1. An operating method of a first device communicating with a second device in a wireless local area network (WLAN), the operating method comprising: receiving, from the second device, a physical layer protocol data unit (PPDU) comprising a payload that comprises a trigger frame; preparing an uplink beamforming matrix based on a value of an uplink beamforming-related first sub-field included in a preamble of the PPDU; beamforming, according to the uplink beamforming matrix, a PPDU; and transmitting the beamformed PPDU to the second device based on a value of an uplink beamforming-related second sub-field included in the trigger frame, wherein the uplink beamforming-related first sub-field is defined to indicate whether the first device has to prepare the uplink beamforming matrix, and wherein the uplink beamforming-related second sub-field is defined to indicate whether the second device requests the uplink beamforming from the first device.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Apparatus and method of uplink beamforming in wireless local area network system
Patent number
US12756439B2
Application number
18224426
Filed
Jul 20, 2023
Granted
Oct 6, 2026
Inventors
6
Claims
20

Classified under

H04B 7/0617 Electricity & electronicsH04B 7/0456 Electricity & electronicsH04L 5/0044 Electricity & electronicsH04W 84/12 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.