Samsung Electronics Co., Ltd.

Ki-Sun Oh

Mi-Sun Do

Jung Min So

Hee Jung Byun

Rakesh Taori

Hyun Jeong Kang

A relay including a receiver to receive from a base station, data, a first data frame, and a second data frame, the first data frame includes data and data transmission time information associated with the data, and the second data frame includes map information corresponding to the data and map information transmission time information associated with the map information; a data frame computation unit to compute a third data frame and a fourth data frame, wherein the third data frame is used to transmit the data to a terminal and the fourth data frame is used to transmit the map information to the terminal; and a transmitter to transmit the data to the terminal using the map information when the third data frame is the same as the fourth data frame.

Data transmission system for asynchronous transmitting data and map information

A communication system and a communication method using relay terminals are provided. A communication system includes a base station, a target terminal transmitting uplink data to the base station or receiving downlink data from the base station, and a plurality of relay terminals cooperatively relaying the uplink data/downlink data to the base station/target terminal, the plurality of relay terminals being grouped into at least one group.

Communication system and communication method using relay terminals

A system for controlling a station operation mode is provided. The system for controlling a station operation mode, including: a distance information generation unit measuring a distance between a first communication station and a second communication station and generating distance information; a distance information comparison unit comparing the distance information and a predetermined threshold distance; and an operation mode determination unit determining any one of an active mode and an idle mode as an operation mode of the second communication station, based on a comparison result of the distance information comparison unit.

Method and system for controlling station operation mode

A relay to transmit data received from a transmitter to a receiver includes a reception unit to receive a first data frame including first data and a second data frame including first MAP information transmitted from a transmitter, and a determination unit to determine whether the received first data and first MAP information correspond to each other, and to determine that the reception unit has failed to receive second MAP information corresponding to the first data and second data corresponding to the first MAP information when the received first data and the first MAP information do not correspond to each other.

Relay for detecting error in asynchronously received data and MAP information

A mobile system, a mobile system, a method for managing a path in a multi-hop cellular network, and a data frame used in the mobile system. The mobile system includes: an information receiving unit to receive information about at least one of link quality, traffic load, and frequency channel size, via a network; and a path establishment unit to establish a path to a base station based on the received information.

Method and mobile system for path management in multi-hop cellular network and data frame used for the method and the mobile system

A system of controlling a cell coverage is provided. The system includes: a state information generation unit to generate state information by considering at least one of a cell coverage and a traffic load of a target cell; an adjacent state information identification unit to identify adjacent state information which is generated by considering at least one of a cell coverage and a traffic load of an adjacent node, from at least one adjacent node; and a cell coverage control unit to control the cell coverage of the target cell based on the state information and the adjacent state information.

Growing community of inventors

Gunpo-si, South Korea

Ki-Sun Oh