Samsung Electronics Co., Ltd.

Boung-Joon Lee

Su Won Lee

Yegin Alper

Hee Jin Jang

Emin Yegin Alper

An access router including a module buffering first data to be transmitted to a first mobile station, and transmitting the first data to a second access router when the first mobile station moves to the second access router. Methods of processing a handover by the access router during a handover of the mobile station are also described.

Access router and method of processing handover by access router

A method and apparatus for authenticating a mobile terminal are provided. A list of potential Network Access Servers (NASs) corresponding to a NAS are maintained in a backend authentication server, authorization information corresponding to each of the potential NASs is transmitted, from the backend authentication server to each of the potential NASs, when the mobile terminal is authenticated via the NAS. The mobile terminal detects whether a new NAS is pre-authenticated, when the mobile terminal moves to a domain of the new NAS, the new NAS detects whether the mobile terminal is pre-authenticated, and the new NAS authenticates the mobile terminal via a Pre-Shared Key (PSK) method, when the mobile terminal and the new NAS are pre-authenticated.

Method and apparatus for authenticating mobile terminal on handover

A Protocol for carrying Authentication for Network Access (PANA) authentication system is provided. The system includes: a PANA client (PaC) which establishes, with a PANA authentication agent (PAA), a first PANA session and a second PANA session independent of the first PANA session, and transmits, to the PAA, a PANA update request packet requesting a binding of the first PANA session and the second PANA session; and a PAA which determines whether the first PANA session and the second PANA session are associated with an identical PaC in response to the PANA update request packet received from the PaC.

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Seongnam-si, South Korea

Boung-Joon Lee