Samsung Electronics Co., Ltd.

Je-Hyun Jung

Hong-Sung Chang

Tae-Won Kim

Jin-Man Kim

Sang-Do Lee

Geun-Hwi Lim

Jae-Jeong Shim

Sang-Jun Moon

Jin-soo Lee

Young-Ki Jeon

Soo-Hoi Kim

Jin-Seok Ko

An apparatus and method for seamlessly providing voice and data services to a user through an access terminal in a mobile communication system including a heterogeneous service & mobility gateway (HSMG) for an interworking service between a circuit network and a packet network, and various access networks overlapping each other. The access terminal notifies the HSMG that a voice call is received, if the access terminal that accessed a packet network receives a voice call. The HSMG sends a direction request to a circuit network upon receiving the notification indicating that the voice call is received. The access terminal directs to the circuit network and registers a new location upon receiving the direction request. The HSMG sets up an incoming voice call to the access terminal after the registration of a new location.

Method and apparatus for providing voice and data services in a mobile communication system with various overlapped access networks

A data push service system and method using a heterogeneous network. The system transmits push data to a Hybrid Access Terminal (HAT) in a heterogeneous mobile communication system in which at least one circuit network overlaps with at least one packet network. The HAT can be connected to a circuit network or a packet network, and is registered in a new access network. The system includes a Packet Service & Mobility Gateway (PSMG) for acquiring access state and connection information of the HAT from the circuit network and the packet network, and generating an access network switching request upon receipt of an external request signal; and a Push Proxy Gateway (PPG) for acquiring access information of the HAT which will transmit the push data from the PSMG, and transmitting a request message to the PSMG.

Data push service system and method using a heterogeneous network

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Suwon-si, South Korea

Je-Hyun Jung