LWIP enhancements for reliable DRB switching

An apparatus, comprising:

• at least one processor configured to cause a user equipment (UE) to perform long term evolution (LTE) and wireless local area network (WLAN) radio level Integration using IPsec Tunnel (LWIP) communication, wherein the at least one processor is further configured to:
• decode a radio resource control (RRC) connection reconfiguration message, received from a base station (BS), the RRC connection reconfiguration message indicting configuration of LWIP encapsulation protocol (LWIPEP) packet data units (PDUs) of a data radio bearer (DRB) with aggregation over LTE and LWIP communications;
• reconfigure the UE to switch DRBs according to the RRC connection reconfiguration message;
• encode, for transmission to the base station, an RRC connection reconfiguration complete message;
• and
• decode LWIPEP PDUs of the DRB with aggregation over LTE and LWIP communications,
• wherein a header of a respective LWIPEP PDU of the LWIPEP PDUs includes a sequence number that is used for reordering of the PDUs.

A user equipment (UE), comprising:

• wireless communication circuitry;
• and
• at least one processor coupled to the wireless communication circuitry configured to cause the UE to perform long term evolution (LTE) and wireless local area network (WLAN) radio level Integration using IPsec Tunnel (LWIP) communication, wherein the at least one processor is further configured to:
• decode a radio resource control (RRC) connection reconfiguration message, received from a base station (BS), the RRC connection reconfiguration message indicting configuration of LWIP encapsulation protocol (LWIPEP) packet data units (PDUs) of a data radio bearer (DRB) with aggregation over LTE and LWIP communications;
• reconfigure the UE to switch DRBs according to the RRC connection reconfiguration message;
• encode, for transmission to the base station, an RRC connection reconfiguration complete message;
• and
• decode LWIPEP PDUs of the DRB with aggregation over LTE and LWIP communications, wherein a header of a respective LWIPEP PDU of the LWIPEP PDUs includes a sequence number that is used for reordering of the PDUs.