US Patent Application 18246214. TRACKING AREA UPDATE PROCEDURE FOR NTN simplified abstract

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TRACKING AREA UPDATE PROCEDURE FOR NTN

Organization Name

Telefonaktiebolaget LM Ericsson (publ)


Inventor(s)

[[Helka-Liina M��tt�nen of Espoo (FI)]]

Johan Rune of LIDINGÖ (SE)

Emre Yavuz of STOCKHOLM (SE)

Alexander Vesely of Feldbach (AT)

Stefan Rommer of Västra Frölunda (SE)

Paul Schliwa-bertling of LJUNGSBRO (SE)

Håkan Palm of VÄXJÖ (SE)

TRACKING AREA UPDATE PROCEDURE FOR NTN - A simplified explanation of the abstract

This abstract first appeared for US patent application 18246214 titled 'TRACKING AREA UPDATE PROCEDURE FOR NTN

Simplified Explanation

The patent application describes a method for wireless devices operating in a non-terrestrial network (NTN) to update their tracking area identity (TAI) based on information received from different cells.

  • The wireless device receives a first TAI from a cell that is moving on the Earth's surface and is associated with a fixed tracking area.
  • The wireless device also receives a second TAI from another cell that is associated with a different fixed tracking area.
  • The wireless device analyzes the information related to the second TAI to determine if it should notify a network node about updating its tracking area.
  • If the analysis determines that a tracking area update is necessary, the wireless device transmits the update to the network node.


Original Abstract Submitted

According to some embodiments, a method performed by a wireless device operating in a non-terrestrial network (NTN) comprises receiving a first tracking area identity (TAI) from a first cell. The first cell is an earth moving cell and the first TAI is associated with a first fixed tracking area. The method further comprises receiving a second TAI. The second TAI is associated with a second fixed tracking area. The method further comprises determining whether the wireless device should notify a network node of a tracking area update based at least in part on information related to the second TAI, and upon determining the wireless device should notify the network node of the tracking area update, transmitting a tracking area update.

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