Hyundai Motor Company

Kia Corporation

Seoul National University

Kbi Dongkook Ind. Co., Ltd.

Wan Gyu Choi

Jin Kyu Lee

Gene Back Hahn

Jae Hyun An

Bum Jun Kim

In Soo Han

Dong Il Son

Chang Bok Park

Woo Hyun Lim

Kwang Jae Lee

Ui Hyun Hong

Dong Hyuk Choi

Chang Woo Kang

Kyu Ha Yoo

Young Kil Suh

Jeonghyeon Kwon

Disclosed is a beam failure recovery method of a base station in a wireless communication system using an RIS. The beam failure recovery method may include configuring a candidate beam set, based on a measured RSRP value in beam sweeping using an antenna, establishing a communication link with a UE through a main beam having the measured RSRP value exceeding a predetermined threshold in the configured candidate beam set, selecting a beam, based on the measured RSRP value, from an SSB to which the main beam belongs and an SSB to which the main beam does not belong when beam failure occurs in the established communication link, and recovering the beam failure with the UE through the selected beam. Accordingly, beam failure recovery may be more effectively performed.

Beam failure recovery method of base station in wireless communication system using RIS, apparatus therefor, and program therefor

A method for operation of a first communication node in an embodiment of a communication system may include the steps of: from among a plurality of transmission antenna elements constituting a first transmission antenna of the first communication node, determining a transmission candidate antenna group including one or more transmission antenna elements via which a wireless signal may be transmitted in the direction of a second communication node through a first lens; receiving information regarding a reception candidate antenna group from the second communication node; determining one or more antenna element combinations on the basis of the one or more transmission antenna elements included in the transmission candidate antenna group and one or more reception antenna elements included in the reception candidate antenna group; and performing, on the basis of the one or more antenna element combinations, wireless communication with the second communication node.

Method and apparatus for transmitting and receiving signal in communication system

The present disclosure relates to an interior material for a vehicle and a method for molding the interior material for the vehicle, and more specifically the method for molding an interior material for a vehicle according to the present disclosure includes heating a skin inserted into an upper end heater and a lower end heater spaced apart from each other; preforming the heated skin using an upper mold having a mold temperature set to have a set shape and a lower mold having a second mold temperature; and pressing the preformed skin and a core using a 1-1 mold and a 1-2 mold having set mold temperatures.

Interior material for vehicle and method for molding interior material for vehicle

Growing community of inventors

Ulsan, South Korea

Wan Gyu Choi