US Patent Application 18248177. MOBILITY FOR SMALL DATA TRANSMISSION PROCEDURE simplified abstract

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MOBILITY FOR SMALL DATA TRANSMISSION PROCEDURE

Organization Name

Nokia Technologies Oy

Inventor(s)

Chunli Wu of Beijing (CN)

Samuli Turtinen of Oulu (FI)

Jussi-Pekka Koskinen of Oulu (FI)

MOBILITY FOR SMALL DATA TRANSMISSION PROCEDURE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18248177 titled 'MOBILITY FOR SMALL DATA TRANSMISSION PROCEDURE

Simplified Explanation

This patent application is about a method for small data transmission (SDT) between two devices. The first device is in an inactive state and is being served by the second device in a first cell. During the SDT session, the first device checks if a potential cell reselection criterion is met. If it is, the first device sends a signal to the second device indicating its intention to switch cells. This allows the second device to either keep the first device in the inactive state or switch it to the connected state. This ensures that data already transmitted is not lost if a cell reselection occurs before the SDT session is completed.

  • The patent application is about a method for small data transmission (SDT) between two devices.
  • The first device is in an inactive state and is being served by the second device in a first cell.
  • During the SDT session, the first device checks if a potential cell reselection criterion is met.
  • If the criterion is met, the first device sends a signal to the second device indicating its intention to switch cells.
  • This allows the second device to decide whether to keep the first device in the inactive state or switch it to the connected state.
  • The purpose of this method is to prevent data loss if a cell reselection occurs before the SDT session is completed.


Original Abstract Submitted

Embodiments of the present disclosure relate to mobility for small data transmission (SDT) procedure. The first device, which is in an inactive state and served in a first cell of the second device, performs a session of small data transmission between the first device and the second device. The first device determines whether a potential cell reselection criterion is satisfied when the session of small data transmission is ongoing. If a potential cell reselection criterion is satisfied, the first device transmits, to the second device, first information indicating an intention of cell reselection. As such, if the cell reselection happens during SDT procedure, the second device is able to put the first device into either the inactive state or the connected state. Accordingly, already transmitted data is not lost in case cell reselection happens before the session of small data transmission is completed.

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