Samsung Electronics Co., Ltd.

Hyuk-Min Son

Hyun-Kyu Yu

Jeong-ho Park

Cheol Mo Jeong

Jae-Won Kim

Nam-Jeong Lee

Su-Ryong Jeong

The present disclosure relates to a communication technique for converging, with an IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, and security and safety related services, on the basis of 5G communication s technologies and IoT-related technologies. To this end, a communication device may determine control information for a superposition transmission, and acquire selection sources in response to the determined control information. The communication device may transmit a preamble sequence on the basis of the acquired selection sources in a preamble transmission area according to the superposition transmission, and transmit data using the determined control information in a data superposition transmission area according to the superposition transmission.

Device and method for transmitting/receiving data in wireless communication system

The present disclosure relates to a 5G or a pre-5G communication system to be provided in order to support a higher data transmission rate than a beyond 4G communication system such as LTE. A method for estimating a channel, by a terminal, in a wireless communication system supporting beamforming using a plurality of antenna elements, which embodiments of the present disclosure provide, comprises: a step of receiving, from a base station, a set of reference beams including a plurality of reference beams; a step of selecting at least one effective beam from the plurality of reference beams included in the set of reference beams; a step of estimating a channel between the base station and the terminal on the basis of the selected effective beam; a step of generating channel information regarding the estimated channel; and a step of transmitting the generated channel information to the base station.

Channel estimation method and apparatus in wireless communication system

A method for performing a random access by a device in a wireless communication system is provided. The method includes receiving a broadcast signal including location information which indicates each of at least two partial areas included in a transmission area of a preamble sequence, and transmitting the preamble sequence through one of the at least two partial areas on the basis of the broadcast signal.

Method and apparatus for random access for multiple devices in wireless communication system

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). A method for channel-related information feedback in a beamforming system, performed by a transmitter is provided. The method includes determining whether a receiver is to feed back gain information about an effective channel established between the transmitter and the receiver using channel-related information between the transmitter and the receiver, notifying the receiver of a feedback mode indicating whether the gain information is to be fed back, upon receipt of feedback information configured based on the feedback mode from the receiver, reconfiguring the effective channel based on the feedback information, and transmitting a signal on the reconfigured effective channel.

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Seoul, South Korea

Hyuk-Min Son