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SamsungGranted patentNetworks & wirelessInterest 4/10

Samsung patents method to sync radio signals for faster 5G connections

Samsung describes a method for coordinating a digital processing unit with a radio unit in a 5G network. The digital unit sends specific reference signals through different transmission paths and requests the radio unit to send back response signals. These responses allow the system to align the timing and phase of the signals for more efficient joint transmission.

Why it mattersThis improves the precision of 5G signal transmission, which can lead to more stable and faster mobile data connections for users.

In the filing’s own words

In various example embodiments, a method performed by a digital unit (DU) is provided. The method may comprise providing a radio unit (RU) with one or more reference signals for phase alignment. The one or more reference signals may be associated with one or more transmission paths of the RU. The method may comprise transmitting, to the radio unit (RU), a response signal control message for a response message. The method may comprise receiving, from the RU, the response message. The response message may include, for each transmission path of the one or more transmission paths of the RU, a path identifier (ID) and a response signal for a reference signal corresponding to the path ID.

What exactly they claim (claim 1)

1. A method performed by a digital unit (DU), the method comprising: transmitting, through a fronthaul interface, to a radio unit (RU), a reference signal control message for one or more reference signals, wherein the reference signal control message includes an identifier (ID) of the RU and one or more path IDs of one or more transmission paths of the RU; transmitting, through the fronthaul interface, to the RU, a data message including data of the one or more reference signals based on the reference signal control message, the data message causing the RU to transmit the one or more reference signals respectively through the one or more transmission paths of the RU; transmitting, through the fronthaul interface, to the RU, a response signal control message for a response message; and receiving, through the fronthaul interface, from the RU, the response message, wherein the response message includes data of one or more response signals for the one or more reference signals and the one or more path IDs of the one or more transmission paths of the RU, and wherein the one or more response signals are usable for phase alignment for joint transmission.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Electronic device and method for phase alignment
Patent number
US12750796B2
Application number
18406762
Filed
Jan 8, 2024
Granted
Sep 29, 2026
Inventors
1
Claims
22

Classified under

H04W 56/001 Electricity & electronicsH04L 5/0048 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.