Telefonaktiebolaget lm ericsson (publ) (20240341009). Handling of Session Context simplified abstract

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Handling of Session Context

Organization Name

telefonaktiebolaget lm ericsson (publ)

Inventor(s)

[[:Category:Attila Mih�ly of Dunakeszi (HU)|Attila Mih�ly of Dunakeszi (HU)]][[Category:Attila Mih�ly of Dunakeszi (HU)]]

[[:Category:Magnus Hallenst�l of Täby (SE)|Magnus Hallenst�l of Täby (SE)]][[Category:Magnus Hallenst�l of Täby (SE)]]

Magnus Olsson of Klagshamn (SE)

Handling of Session Context - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240341009 titled 'Handling of Session Context

Simplified Explanation: The patent application describes a network that facilitates PDU sessions between wireless devices and data networks. UPFs manage the user planes of these sessions, while SMFs handle the sessions themselves. When transferring management of a PDU session from one SMF to another, the first SMF must release the signaling session with the UPF, and the second SMF must re-establish it to avoid interruptions in the PDU session.

  • UPFs manage user planes of PDU sessions
  • SMFs handle PDU sessions and have dedicated interfaces for signaling sessions
  • When transferring management of a PDU session, the first SMF releases the signaling session with the UPF, and the second SMF re-establishes it
  • Control element in the release message indicates to the UPF that the signaling session will be re-established by another SMF
  • Ensures continuity in the handling of the PDU session during management transfers

Potential Applications: - Telecommunications networks - IoT devices - Mobile data services

Problems Solved: - Seamless transfer of management responsibility for PDU sessions - Avoiding interruptions or hick-ups in wireless device sessions

Benefits: - Improved reliability in managing PDU sessions - Enhanced user experience with uninterrupted sessions

Commercial Applications: Title: "Seamless Management Transfer for Wireless Device Sessions" This technology could be utilized in telecommunications companies, IoT service providers, and mobile data networks to ensure smooth management transitions for PDU sessions, enhancing overall network performance and user satisfaction.

Prior Art: Prior research in network management protocols and session handling in wireless communications could provide insights into similar approaches to managing PDU sessions and signaling transfers.

Frequently Updated Research: Ongoing research in 5G network technologies and mobile communication standards may offer new developments in session management and signaling protocols for wireless devices.

Questions about Wireless Device Session Management: 1. How does the patent application address the issue of interruptions during the transfer of management responsibility for PDU sessions? 2. What are the key differences between UPFs and SMFs in managing wireless device sessions?


Original Abstract Submitted

a network provides pdu sessions between wireless devices and data networks. upfs in the network handle the user planes of these pdu sessions, while smfs in the network manage the pdu sessions. the smfs have dedicated interfaces for signaling sessions to the upfs. in the occasion that managing of a pdu session has to be transferred from one smf to another smf, the first smf has to release the signalling session with the upf for the pdu session, and a second smf has to re-establish the signaling session with the upf for the same pdu session. to avoid that during the transfer of the management responsibility transfer the wireless device experiences a hick-up in the pdu session the first sms includes a control element in the release message to the upf, indicating to the upf that the signaling session for the pdu session will be re-established by a second smf, and that the upf shall continue the handling of the pdu session till re-establishment.