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GoogleGranted patentNetworks & wirelessInterest 3/10

Google patents method for managing direct device links during network drops

This patent describes how a mobile device handles direct communication settings when its main connection to a cell tower fails. The device sends specific data to the network to set up these direct links, but if the connection breaks, it clears those settings while trying to reconnect to the tower.

Why it mattersIt improves the reliability of direct device-to-device communication by ensuring old settings are cleared when the main network connection is unstable.

In the filing’s own words

A user equipment (UE), for managing information related to sidelink communications, when the UE has a radio connection with a radio access network (RAN), (i) transmits ( 1802), to the RAN, sidelink information for generating, at the RAN, a sidelink configuration for the UE, (ii) determines ( 1804), subsequently to the transmitting, that the radio connection with the RAN is to be modified, and (iii) processes ( 1806) the sidelink information in response to the determination. A RAN, for managing information related to sidelink communications, when a UE has a radio connection with the RAN, (i) receives ( 1902), from the UE, sidelink information, (ii) generates ( 1904), using the sidelink information, a sidelink configuration for the UE, (iii) determines ( 1906) that the radio connection with the UE is to be modified, and processes ( 1908) the sidelink information in response to the determination.

What exactly they claim (claim 1)

1. A method in a user equipment (UE) for managing information related to sidelink communications, when the UE has a radio connection with a radio access network (RAN), the method comprising: receiving, by the UE and from the RAN, a sidelink configuration; detecting, by the UE, a failure on the radio connection with the RAN; transmitting, by the UE, a radio resource control (RRC) reestablishment request to the RAN in response to the detecting of the failure; and releasing, by the UE, the sidelink configuration in conjunction with the transmitting of the RRC reestablishment request.

Facts

Company
Google (GOOGLE LLC)
Official title
Managing sidelink information, configuration, and communication
Patent number
US12757223B2
Application number
18026784
Filed
Sep 15, 2021
Granted
Oct 6, 2026
Inventors
1
Claims
5

Classified under

H04W 72/25 Electricity & electronicsH04W 36/305 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.