Samsung Electronics Co., Ltd.

Seoul National University

Snu Rdb Foundation

Kwanghun Han

Sunghyun Choi

Hyewon Lee

Kyung Hun Jang

Hyo Sun Hwang

Yong-Hwan Lee

Jae-hyuk Jang

Youngkyu Choi

Sunggeun Jin

Youngwoo Hwang

Disclosed are a base station and mobile station to adaptively control a bandwidth of a channel. The base station includes a state information recognition unit to recognize neighboring-state information related with a traffic load of at least one neighboring network adjacent to a target network, a control state information transmitting unit to transmit control state information related with the controlled bandwidth of the target channel to mobile stations of the target network, and a bandwidth control unit to control a bandwidth of a target channel used in the target network according to a bandwidth of a channel used in the neighboring network based on the neighboring-state information.

Method and device for adaptably controlling bandwidth of channel

In retransmitting data at high speed by a PHY layer in a mobile communication system, when data to be transmitted to the receiver is received from the MAC layer of the transmitter, the PHY layer of the transmitter transmits the data to the PHY layer of the receiver, receives first information representing normal reception or abnormal reception of the data from the PHY layer of the receiver, notifies the MAC layer of the transmitter of the normal reception of the data when the first information represents the normal reception, and retransmits the data to the PHY layer of the receiver when the first information represents the abnormal reception.

Apparatus and method for retransmitting data in mobile communication system

Growing community of inventors

Icheon-si, South Korea

Kwanghun Han