Samsung Electronics Co., Ltd.

Seoul National University

Woonkyun Lee

Okhwan Lee

Sunghyun Choi

Seungmin Yoo

Taejun Kim

Jaehong Yi

Seongwon Kim

Youngjip Kim

Youngwook Son

The present disclosure relates to a communication technique for convergence of an IoT technology and a. 5G communication system for supporting a higher data transfer rate beyond a 4G system, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security and safety-related services, etc.) on the basis of a 5G communication technology and an IoT-related technology. The present invention provides a method and apparatus for transmitting and receiving power headroom information in a beam-forming system. In addition, the present invention provides a method of a first module of a base station in a wireless communication system, the method comprising the steps of: when an unlicensed band is required to be used, transmitting a. resource allocation request message with respect to the unlicensed band to a second module; receiving a response message in response to the request; and allocating a resource of the unlicensed band to a terminal on the basis of the response.

Method and apparatus for using unlicensed band in communication system

According to one embodiment of the present disclosure, a communication method of an AP using multiple antennas can be provided, comprising the steps of: setting two or more transmission descriptors including unit transmission information in which antenna combination information and transmission rate information are defined; transmitting a packet using one of the set transmission descriptors; receiving information indicating whether the transmitted packet is a success or not; and collecting the information indicating whether the transmitted packet is a success or not for a predetermined period to reset the transmission descriptors. In addition, an apparatus using the method can be provided.

Technique and apparatus for selecting multiple antennas

Growing community of inventors

Hwaseong-si, South Korea

Woonkyun Lee