Samsung Electronics Co., Ltd.

Ji-Sung Oh

Chang-Yeul Kwon

Seong-Soo Kim

Ohyun Jo

Dong-Hwi Roh

Jae-min Lee

Sang-Hyun Chang

Ki-bo Kim

Jae-Hwa Kim

Jae-Hwan Oh

Seung-Hwan Kim

Sung-bo Oh

Il-ju Na

Yeon-woo Lee

Jae-hwa Kim

Pil-Soon Choi

Joong-suk Park

Jung-won Kwak

Jun-Yeub Lee

Yeon-Woo Lee

Jung-Won Kwak

Sung-wook Cha

Jun-yeub Lee

Sung-Wook Cha

Ki-Bo Kim

Joong-Suk Park

A method and apparatus for beamforming in a wireless communication system are provided. The method of supporting beamforming in a wireless communication device includes detecting a direction change of the wireless communication device while communicating with a peer device. The method of supporting beamforming in a wireless communication device also includes adjusting a beam direction for communication with the peer device based on information indicating a direction change of the wireless communication device.

Method and apparatus for beamforming 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). Embodiments of the present invention provide an apparatus and method for adaptively selecting a beam based on a service and an environment in a wireless communication system supporting beamforming. According to an embodiment of the present invention, a method for operating a device capable of communicating with another device in a wireless communication system includes determining a type of service, determining an optimal beam based on the determined type of service, and beamforming by using the optimal beam. Various other embodiments of the present invention are also available.

Apparatus and method for selecting adaptive beam in wireless communication system

A method and device for transmitting and receiving a video stream are provided. The transmitting method includes receiving auxiliary information and one or more video streams, and distributing them as one or more pieces of lane data; transmitting the lane data to a receiving device; and receiving a result value that indicates whether a video processing unit for processing one of the one or more video streams works normally. The receiving method includes receiving one or more pieces of lane data that include auxiliary information and one or more video streams; merging the lane data into one or more video streams; selecting a video processing unit based on the auxiliary information, where one or more video processing units process the video streams; generating a result value for the selected video processing unit that indicates whether the video processing unit works normally; and transmitting the result value to a transmitting device.

Method and device for transmitting and receiving video stream

A method for encrypting content includes using a plurality of different encryption schemes to produce encrypted content. Encryption information is provided so as to indicate which of the plurality of different encryption schemes is used on portions of the content that was encrypted. Encryption information and the encrypted content are both sent as a content stream to another device. The decryption involves using the encryption information to help control the decryption so that the correct one of a plurality of different decryption schemes is applied to the proper portions of the encrypted content.

Method for encrypting content, method for decrypting content and electronic apparatus applying the same

A method and apparatus for transmitting urgent data by embedding the urgent data in normal data is provided. An urgent data signal is embedded in a normal data signal in such a way that the normal data signal is not affected, and then the urgent data signal is transmitted together with the normal data signal thereby stably transmitting urgent data without using a separate urgent data line.

Method and apparatus for transmitting urgent data

Provided are a method and an apparatus for performing a piconet coordinator (PNC) handover in a wireless personal area network (WPAN) in which devices using various PHY transmission modes coexist. A device that enters the WPAN transfers information about its PHY transmission mode to the PNC through an association request message so that a problem that conventional services are not provided to a user in the WPAN due to a difference in PHY transmission modes of the devices during the PNC handover can be solved.

Method and apparatus for performing piconet coordinator handover in wireless personal area network

Provided are a wireless network system and a method of configuring the same, in which stations that perform directional communication in a high-frequency band can share information regarding their communication capabilities with each other. An apparatus for managing stations that transmit/receive data using millimeter wave (mmWave) includes a communication capability information management module which receives an association request frame and determines the communication capability of an associating station that has transmitted the association request frame based on the association request frame; an information-frame-generation module which generates a wireless video area network (WVAN) information frame specifying the communication capability of the associating station; and a communication module which transmits the WVAN information frame, wherein the apparatus serves as a wireless network coordinator.

Wireless network system and method of configuring the same

Provided is a method and apparatus for generating a data frame. The method includes: generating a plurality of subframes by using at least one medium access control (MAC) service data unit (MSDU); generating at least one field of an unequal error protection (UEP) field indicating whether UEP is applied to the subframes, a modulation and coding scheme (MCS) field indicating a modulation and coding scheme applied to each of the subframes, and a length field indicating the length of each of the subframes; and generating a data frame by using the subframes and the at least one of the UEP field, the MCS field, and the length field.

Method and apparatus for generating data frame

Provided is a method of allocating a channel time in a wireless personal area network (WPAN). In a WPAN where a parent piconet and at least one child piconet coexist, the method includes receiving a request frame transmitted from at least one of a plurality of child piconnet coordinators (PNCs) in order to request channel time allocation for data transmission, according to a common mode that is a PHY transmission mode commonly supported by a parent PNC and the child PNCs; and transmitting a beacon frame including channel time allocation information corresponding to the request frame to all the child PNCs of the WPAN.

Method and apparatus for allocating channel time in wireless personal area network

Apparatuses and methods are provided for transmitting and receiving uncompressed audio or video (AV) data by applying a different coding rate to each bit or each group of bits included in the uncompressed AV data according to significance of each bit or each group of bits. The apparatus for transmitting the uncompressed AV data includes a grouping unit which classifies bits of each pixel included in the uncompressed AV data into at least two groups of bits according to a significance of the bits; an encoding unit which performs error correction encoding on each of the at least two groups using a different coding rate; and a radio frequency (RF) processing unit which transmits the encoded, uncompressed AV data, which includes the pixels on which the error-correction encoding was performed, using a communication channel.

Apparatuses and methods for transmitting and receiving uncompressed AV data

Provided are a data transmission apparatus and method which apply an appropriate coding rate according to significance of bits or bit groups included in uncompressed data and retransmit all or part of the data when a transmission error occurs in the data while the data is being transmitted over a wireless network. The data transmission apparatus includes a mode termination unit which determines a retransmission mode for an initial transmission packet which has a transmission error; a packet generation unit which generates a retransmission packet, which includes at least part of the initial transmission packet, according to the determined retransmission mode; and a communication unit which transmits the retransmission packet through a communication channel.

Data transmission apparatus and method for applying an appropriate coding rate

Provided are an apparatus and method for transmitting data and an apparatus and method for receiving data, in which beam forming is performed in consideration of the communication capabilities of antennas of stations that perform directional communication in a high-frequency band. The apparatus for transmitting data includes a communication-capability-determination module which determines the communication capability of a receiver (RX) antenna module of a receiving station based on communication-capability data transmitted by the receiving station; an antenna-control module which controls a transmitter (TX) antenna module according to a beam-forming mode determined based on the communication capability of the RX antenna module and the communication capability of the TX antenna module; and a communication module which transmits data through the TX antenna module, wherein the beam-forming mode determines whether to transmit a TX antenna weight vector (AWV) pattern, whether to receive a feedback response pattern and whether to transmit an RX AWV pattern.

Apparatus and method for transmitting data and apparatus and method for receiving data

A method and apparatus for transmitting and receiving a digital signal using an orthogonal frequency division multiplexing (OFDM) communication system are provided. In this method, subcarriers are split into a plurality of subcarrier groups according to available frequency bandwidths and are respectively transmitted in a transmitting portion and the subcarrier groups are combined and are restored to the original signal in a receiving portion. Therefore, wireless resources may be used efficiently by combining with cognitive radio technology.

Method and apparatus for orthogonal frequency division multiplexing communication

Provided are a method and apparatus for generating a preamble of a data packet. The method includes operations of generating a first field, a second field, and a third field; generating a synchronization sequence for synchronization between a data packet transmitter and a data packet receiver, generating a channel estimation sequence (CES) for estimation of a property of a channel in which the data packet is transmitted, and generating an additional sequence indicating an end position of the synchronization sequence in the preamble, and an additional sequence indicating information about a structure of the CES; and respectively recording the synchronization sequence, the additional sequences, and the CES in the first field, the second field, and the third field, thereby generating the preamble.

Growing community of inventors

Seongnam-si, South Korea

Ji-Sung Oh