Packet data network connection establishment during handover

An apparatus of a user equipment (UE) for establishing a new packet data network (PDN) connection during a service request, the apparatus comprising one or more processors configured to:

• receive a radio resource control (RRC) connection reconfiguration message from a radio base station during a service request procedure, the RRC connection reconfiguration message including a request for establishment of the new PDN connection between the UE and a target PDN gateway (PGW);
• establish, at the UE, the new PDN connection using one or more parameters included in the RRC connection reconfiguration message;
• and
• send, to the radio base station, a RRC connection reconfiguration complete message during the service request procedure that includes an acknowledgement of the establishment of the new PDN connection.

An apparatus of a mobility management entity (MME) for facilitating establishment of a new packet data network (PDN) connection for a user equipment (UE) during handover, the apparatus comprising one or more processors configured to:

• receive, at the MME, a handover required message that triggers a handover procedure from a source radio base station;
• send a create session request message towards a target PDN gateway (PGW) during the handover procedure that includes a request to create the new PDN connection between the UE and the target PGW;
• receive a create session response message from the target PGW during the handover procedure that includes one or more parameters for the new PDN connection;
• send, from the MME, a handover request message to the target radio base station that includes a request for radio resources for the new PDN connection;
• receive, from the target radio base station, an acknowledgement of the target request message;
• and
• send a handover command message to the source radio base station that includes the one or more parameters for the new PDN connection, wherein the source radio base station forwards the one or more parameters for the new PDN connection to the UE to enable the UE to establish the new PDN connection with the target PGW.

An apparatus of a source radio base station for facilitating establishment of a new packet data network (PDN) connection for a user equipment (UE) during handover, the apparatus comprising circuitry configured to:

• send, to a target radio base station, a handover request message that includes a request to create the new PDN connection between the UE and a target PDN gateway (PGW);
• receive, from the target radio base station, a handover request acknowledgement message that includes one or more parameters for the new PDN connection;
• and
• send, to the UE, a radio resource control (RRC) connection reconfiguration message that includes a request for establishment of the new PDN connection between the UE and the target PGW.