Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Seoul National University

Snu Rdb Foundation

Okhwan Lee

Sunghyun Choi

Seungmin Yoo

Woonkyun Lee

Yong Ho Seok

Jihoon Kim

Hyewon Lee

Ill Soo Sohn

Taejun Kim

Jaehong Yi

Seongwon Kim

Munhwan Choi

Youngwook Son

Youngjip Kim

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

The present invention relates to an apparatus and method for power saving of a terminal in a wireless communication system and, particularly, to an apparatus and method for power saving of a terminal in a wireless LAN system. A method according to an embodiment of the present invention, which is a data transmission and reception method for power saving of a terminal in a wireless LAN system access point, may comprise the steps of: transmitting a control frame including information for channel bonding power saving control; when there is data to be transmitted from a specific terminal, determining whether the corresponding terminal is in a state where a channel bonding power saving control function is activated; when the terminal is in a state where the channel bonding power saving control function is activated, checking whether the terminal is in a dynamic mode; and when the terminal is in the dynamic mode, configuring the data to be transmitted as a data frame for transmitting the data in a channel bonding scheme, and transmitting the data frame.

Method and apparatus for power saving of terminal in wireless LAN 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

A method of communication based on a receive chain control, performed by a receiver, in a wireless local area network is provided. The method includes: receiving a frame from a transmitter, the frame indicating a multi receive chain operation, activating at least one receive chain, each receive chain processing a received signal transmitted through each spatial stream, and receiving at least one data field from the transmitter through the at least one activated receive chain.

Method of communication based on controlling receive chain in wireless local area network and apparatus for the same

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Seoul, South Korea

Okhwan Lee