Electronics and Telecommunications Research Institute

Hwan Gu Lee

Hye Jin Kim

Won Tae Kim

Sun Ja Kim

Jae Pyeong Kim

Heung Nam Kim

Jin Suk Ma

Byung Chul Tak

Provided is a root mobile router and the operating method thereof in a dynamically composed moving network, capable of forming a self-configuring ad-hoc network between wireless personal area networks (WPANs) of each user in a moving network and supporting a stable connection between the network and the Internet. The method includes the steps of: receiving state information of multiple access networks and selecting an optimal access network in order to connect to the Internet; receiving a result of the selection and activating an interface of the selected access network; changing the selected access network to the activated access network interface; and updating routing path information automatically and stably transmitting an IP packet to the Internet through the selected access network interface. Therefore, a personal mobile terminal can be utilized as a mobile router.

Root mobile router and the operating method thereof in dynamically composed moving network

A transmission apparatus having a plurality of network interfaces and a transmission method using a plurality of the network interfaces are provided. The transmission apparatus includes: a session information extraction unit which extracts session information of an IP packet; a network interface determination unit which determines a network interface associated with session information of the IP packet based on a table for mapping sessions to the network interfaces according to available bandwidths of the network interfaces; and a traffic distribution unit which transmits the IP packet to the determined network interface. Accordingly, traffic is distributed over a plurality of network interfaces, so that optimal communication performance can be ensured in a simultaneous multiple-mode connection environment, and network resources can be efficiently utilized.

Transmission apparatus having a plurality of network interfaces and transmission method using the same

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Daejeon, South Korea

Hwan Gu Lee