Device and Method of Handling a Dual Connectivity

Abstract

A first base station (BS) of a first network for handling a dual connectivity (DC) comprises a storage device and a processing circuit, coupled to the storage device. The storage device stores, and the processing circuit is configured to execute instructions of: transmitting a Secondary Node (SN) Request message comprising a protocol data unit (PDU) Session identity of a communication device, to a second BS of a second network; receiving a SN Request Acknowledge message comprising a first radio resource control (RRC) message, from the second BS, in response to the SN Request message; and transmitting the first RRC message to the communication device, wherein the first RRC message configures a data radio bearer (DRB), a DRB identity and the PDU Session identity of the communication device to communicate with the second BS.

Dependencies are inferred from the claim text.