Samsung Electronics Co., Ltd.

Soon-Jung Lee

Woo-Yong Lee

Jai-Dong Kim

Jai-Ho Lee

Suk-Soon Kim

Joong-Soo Ma

In-Oh Chung

Myung-Hwan Seo

A method for transmitting a flooding ad hoc traffic indication message (FATIM) in a power save mode whose beacon interval is divided into an ad hoc traffic indication message (ATIM) window and data transmission window subsequent to the ATIM window, in a mobile ad hoc network (MANET) constituted by a plurality of nodes. When one of the plurality of nodes has data to be forwarded to different nodes, a FATIM frame indicating that a network broadcast message will be sent to its neighbor nodes is forwarded during the ATIM window. If a current ATIM window has not expired, at least one different node of the plurality of nodes receiving the FATIM frame forwards the received FATIM frame to its neighbor nodes.

Method for transmitting FATIM in mobile ad hoc network and medium access control protocol layer module therefor

Provided is a method for setting up a route path between source and destination nodes in a mobile ad hoc network. The source node transmits a RREQ message to the destination node, which transmits a RREP message to the source node. A first intermediate node having failed to transmit the original RREP stores the original RREP, and generates and transmits a PRREQ message, to neighbor intermediate nodes. If an ID of the PRREQ and an original IP address included in the received PRREQ are identical to those of the RREQ received from the source node, a second intermediate node receiving the PRREQ generates and transmits a PRREP message corresponding to the PRREQ to the first intermediate node. If a partial route path is set up between the first and second intermediate nodes, the first intermediate node transmits the original RREP to the source node, which completes setup of the route path.

Method for setting up route path through route discovery in a mobile ad hoc network using partial route discovery

Disclosed is a portable terminal that includes an external device interface unit, a memory unit, a main controller, and a power supply unit. The external device interface unit provides a connection between the portable terminal and an external device, includes ports outputting control signals and electric power for operating the external device, and controls an operation of the external device. The memory unit stores downloaded information for operating the external device that is connected to the portable terminal through the external device interface unit. The main controller generates an external device control signal based on the operation information stored in the memory unit, and transmits the external device control signal to the external device interface unit. The power supply unit provides power for driving the external device through the external device interface unit.

Portable terminal

Growing community of inventors

Suwon-si, South Korea

Soon-Jung Lee