Pdu session establishment accept handling for ma pdu sessions

A method, comprising:

• maintaining a multi-access protocol data unit (MA PDU) session and user plane resources on a first access type by a user equipment (UE), wherein the UE stores a first set of parameters for the MA PDU;
• transmitting a PDU session establishment request message over a second access type and in response receiving a PDU session establishment accept message;
• determining a second set of parameters carried by the PDU session establishment accept message, wherein at least one parameter in the second set is different from a corresponding parameter in the first set;
• and
• in response, locally releasing the MA PDU session and transmitting two REGISTRATION REQUEST messages, wherein each REGISTRATION REQUEST message includes a PDU session status information element (IE) to synchronize a MA PDU session status with the network, a first REGISTRATION REQUEST is sent over 3GPP access, and a second REGISTRATION REQUEST is sent over non-3GPP access.

A user equipment (UE), comprising:

• a multi-access protocol data unit (MA PDU) session handing circuit that maintains user plane resources on a first access type of an MA PDU session, wherein the UE stores a first set of parameters for the MA PDU session;
• a transmitter that transmits a PDU session establishment request message over a second access type;
• a receiver that receives a PDU session establishment accept message in response to the request message;
• and
• a controller that determines a second set of parameters carried by the PDU session establishment accept message, wherein at least one parameter in the second set is different from a corresponding parameter in the first set, wherein the UE locally releases the MA PDU session and transmits two REGISTRATION REQUEST messages, wherein each REGISTRATION REQUEST message includes a PDU session status information element (IE) to synchronize a MA PDU session status with the network, a first REGISTRATION REQUEST is sent over 3GPP access, and a second REGISTRATION REQUEST is sent over non-3GPP access.