20240056900. MBS SESSION MAINTENANCE AFTER HANDOVER simplified abstract (MediaTek Inc.)

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MBS SESSION MAINTENANCE AFTER HANDOVER

Organization Name

MediaTek Inc.

Inventor(s)

Yu-Hsin Lin of Hsin-Chu (TW)

Yuan-Chieh Lin of Hsin-Chu (TW)

Chi-Hsien Chen of Hsin-Chu (TW)

MBS SESSION MAINTENANCE AFTER HANDOVER - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240056900 titled 'MBS SESSION MAINTENANCE AFTER HANDOVER

Simplified Explanation

The abstract of the patent application describes a method for maintaining a mobile broadband system (MBS) session when a user equipment (UE) performs an intersystem change. The UE initially maintains a packet data unit (PDU) session in a 5G network and joins an MBS session to receive MBS services over the associated PDU session. Later, the UE performs an intersystem change from 5G to 2/3/4G, resulting in the release or transfer of the PDU session to a packet data network (PDN) connection. The UE determines that the released or transferred PDU session is associated with the MBS session and locally leaves the MBS session. Similarly, the network determines the association and considers the UE as removed from the MBS session.

  • The method allows a UE to maintain an MBS session while performing an intersystem change from 5G to 2/3/4G.
  • The UE maintains a PDU session in the 5G network and joins an MBS session for receiving MBS services.
  • When the UE performs an intersystem change, the PDU session is released or transferred to a PDN connection.
  • The UE determines the association between the released or transferred PDU session and the MBS session and locally leaves the MBS session.
  • The network also determines the association and considers the UE as removed from the MBS session.

Potential applications of this technology:

  • Seamless handover of MBS sessions for UE moving between different generations of mobile networks (e.g., 5G to 4G).
  • Improved user experience by maintaining uninterrupted MBS services during intersystem changes.
  • Efficient utilization of network resources by releasing or transferring PDU sessions when not associated with MBS sessions.

Problems solved by this technology:

  • Interruption of MBS services during intersystem changes can be avoided.
  • UE can seamlessly transition between different generations of mobile networks without losing the MBS session.
  • Network resources can be efficiently managed by releasing or transferring PDU sessions when not associated with MBS sessions.

Benefits of this technology:

  • Enhanced user experience with uninterrupted MBS services during intersystem changes.
  • Improved network efficiency by optimizing the utilization of resources.
  • Seamless transition between different generations of mobile networks for UE.


Original Abstract Submitted

a method for maintaining mbs session when ue performs intersystem change is provided. ue maintains a pdu session in 5g network. ue then joins an mbs session for receiving mbs service over the associated pdu session. later on, ue performs intersystem change from 5g to 2/3/4g. the pdu session is then released or transferred to a pdn connection. from ue perspective, ue determines that the released or transferred pdu session is associated with the mbs session, and therefore locally leaves the mbs session. from nw perspective, nw determines that the released or transferred pdu session is associated with the mbs session, and therefore considers the ue is removed from the mbs session.

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