Multi-access protocol data unit session processing method

• Main Authors: LIN YUANJIE, CHEN JIXIAN
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a multi-access protocol data unit session processing method. A method of handling interworking from 5GS to 2G/3G of an MA PDU session with a 3GPP EPS PDN branch. In an inter-system handover from an S1 mode to an A/Gb mode or an Iu mode, for a PDN connection of a user plane resource established as an MA PDU session: if an SM entity activates a PDP context using parameters of a default EPS bearer context from the PDN connection, an SMF may initiate a PDU session release process of a network request through non-3GPP access, or perform a local release of the MA PDU session; the UE may perform a local release of the MA PDU session. Otherwise, the SMF may initiate a PDU session modification process of the network request through the 5G non-3GPP access to move traffic of the MA PDU session to the 5G non-3GPP access, or initiate a PDU session release process of the network request through the non-3GPP access. 多接入协议数据单元会话处理方法。一种处理具有3GPP EPS PDN支路的MA PDU会话的从5GS到2G/3G的交互工作的方法。在从S1模式到A/Gb模式或Iu模式的系