Korea Advanced Institute of Science and Technology

Samsung Electronics Co., Ltd.

Kab Seok Ko

Dan Keun Sung

Ji Young Cha

Hyun Ho Choi

Byoung Hoon Jung

Seon Yeob Baek

Jong Bu Lim

Su Min Kim

Han Seung Jang

Byung Hoon Jung

Provided is a random access method of a node, the method including receiving spatial group information on spatial groups generated in a cell from a base station, identifying a spatial group corresponding to the node based on the spatial group information, transmitting a preamble signal to the base station by generating the preamble signal, and receiving a random access response message in response to the preamble signal.

System and method for random access based on spatial group

Provided is a method of a multi-node cooperation considering a delay in a wireless communication system. A frame format may perform scheduling so that uplink cooperation terminals having a similar delay attribute may be classified into an uplink cooperation zone, to thereby prevent interference between the uplink cooperation zone and a non-cooperation zone. An extended cyclic prefix may be applied according to a delay attribute occurring due to an application of the multi-node cooperation. A cooperation base station of an uplink and a downlink may be determined based on the extended cyclic prefix.

Method for multi-point cooperation considering delay in a wireless communication system

A communication system and method for single-point transmission and reception and coordinated multi-point transmission and reception are provided. The system and method include determining information associated with a channel status of a target terminal. The system and method also include selecting, with respect to the target terminal, one of single-point transmission and reception and coordinated multi-point transmission and reception based on the information associated with the channel status of the target terminal.

Communication system and method for single-point transmission and reception and coordinated multi-point transmission and reception

Growing community of inventors

Daejeon, South Korea

Kab Seok Ko