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Google patents method for phones to pick the right signal beam quickly

This filing describes a way for a phone to choose a default signal beam to receive data when the network sends a reference signal very quickly. It helps the device decide which beam to use before it has fully processed the instructions for that specific signal. The choice depends on how much time is available and whether other data is being sent at the exact same moment.

Why it mattersIt improves how efficiently phones can maintain a strong connection during fast data transfers, which is a standard part of 5G network optimization.

In the filing’s own words

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for a UE to determine a default beam to receive an aperiodic reference signal (e.g., CSI-RS). The UE may determine the default beam before the UE finishes decoding a scheduling or triggering signal for the aperiodic reference signal when determining a transmission configuration indicator (TCI) state associated with the aperiodic reference signal. A UE ( 102) receives ( 404), from a network entity ( 104), a configuration for a plurality of TCI states. The UE ( 102) receives ( 410), from the network entity ( 104), an indication for scheduling or triggering an aperiodic reference signal associated with one of the plurality of TCI states. The UE ( 102) receives ( 412), from the network entity ( 104), the aperiodic reference signal using a default beam. The default beam is selected based on a timing of the aperiodic reference signal being below a threshold.

What exactly they claim (claim 1)

1. A method of wireless communication at a user equipment (UE) comprising: receiving, from a network entity, a configuration for a plurality of transmission configuration indicator (TCI) states; receiving, from the network entity, an indication for triggering an aperiodic reference signal associated with one of the plurality of TCI states; and receiving, from the network entity, the aperiodic reference signal using a default beam, the default beam being selected based on a timing of the aperiodic reference signal being below a threshold, whether a downlink signal is scheduled in a same symbol with a transmission of the aperiodic reference signal, and one of the plurality of TCI states when the downlink signal is not scheduled in the same symbol with the transmission of the aperiodic reference signal and a TCI state associated with the downlink signal when the downlink signal is scheduled in the same symbol with the transmission of the aperiodic reference signal.

Facts

Company
Google (Google LLC)
Official title
METHOD AND APPARATUS FOR DETERMINING BEAM FOR A PERIODIC CSI-RS IN A WIRELESS COMMUNICATION SYSTEM
Publication number
US20260280665A1
Application number
19167552
Filed
Apr 7, 2023
Published
Sep 17, 2026
Inventors
2
Claims
20

Classified under

H04B 7/06952 Electricity & electronicsH04B 7/0626 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.