Electronics and Telecommunications Research Institute

Newracom, Inc.

Sungshin Women's University Industry-Academic Cooperation Foundation

Sungshin Women's University R&d Foundation

Il-Gu Lee

Sok-Kyu Lee

Eun-Young Choi

Jae Seung Lee

Jae Woo Park

Min Ho Cheong

Jee Yon Choi

Yun Joo Kim

Jong Ee Oh

Jung-Bo Son

Seung-Chan Bang

Hyun-Kyu Chung

Minho Cheong

Jeeyon Choi

Hun-Sik Kang

Dae-Sik Kim

Hee-Jung Yu

Deuk-Su Lyu

Seung-Ku Hwang

Chan-Ho Yoon

Seung-Wook Min

Tae-hyun Jeon

Yu-Ro Lee

Yun-Joo Kim

Chanho Yoon

Jong-Ee Oh

Je-Hun Lee

Ji Eun Lee

Jae-Seung Lee

In-Kyeong Choi

Yoo-Seung Song

JiHyun Nam

Joonsoo Lee

Jaewoo Park

Heejung Yu

Hyun-Gu Park

Kyoung-Ju Noh

Kwhang-Hyun Ryu

Kyoung-Hee Song

Sunjae Lee

So Eun Jeon

Ye Sol Oh

Si-Chan Noh

Hae-Young Na

An embodiment is method performed by a wireless device to allow preemption in a wireless network. The method includes wirelessly transmitting a first preemption physical layer protocol data unit (PPDU) that includes a complete preamble followed by one or more subsequent preemption PPDUs that each include a reduced preamble, wherein the complete preamble includes one or more preamble fields that are omitted in the reduced preamble, wherein the first PPDU and the one or more subsequent preemption PPDUs are transmitted with a predefined interframe space interval between PPDU transmissions during which preemption is allowed.

Physical layer protocol data unit (PPDU) format for reducing preamble overhead of preemption PPDUs

The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.

Method and apparatus for transceiving data

Provided are a capsule endoscope apparatus for supporting a lesion diagnosis and a lesion diagnosis supporting method using the same. The capsule endoscope apparatus for supporting lesion diagnosis includes an imaging unit configured to capture one or more images of an inside of a body, a control unit configured to detect a suspected lesion region in the images and perform a precision diagnosis procedure when a suspected lesion region corresponding to a value equal to or greater than a certain threshold is detected, an image processing unit configured to process the images in the precision diagnosis procedure, and a communication module configured to transmit and receive processed images to another capsule endoscope apparatus or a terminal by using a wireless communication method.

Capsule endoscope apparatus and method of supporting lesion diagnosis

A transmit power control method of a first station in a wireless LAN (WLAN) system includes: receiving path loss information from an (access point) AP, the path loss information containing a maximum value among path losses between the AP and at least one or more stations included in the WLAN system; controlling a transmit power by using the path loss information; and transmitting a frame according to the controlled transmit power. In said controlling the transmit power by using the path loss information, the transmit power is controlled by using a path loss obtained by adding the maximum value and a path loss between the first station and the AP or by using the path loss between the first station and the AP.

Method and apparatus for controlling transmission power in WLAN system

A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.

Communication method, wireless station and communication device for receving frame using certain bandwidth and spatial stream

A method for automatically detecting a packet mode in a wireless communication system supporting a multiple transmission mode includes: acquiring at least one of data rate information, packet length information and channel bandwidth information from a transmitted frame; and determining the packet mode on the basis of the phase rotation check result of a symbol transmitted after a signal field signal and at least one of the data rate information, the packet length information and the channel bandwidth information acquired from the transmitted frame.

Packet mode auto-detection in multi-mode wireless communication system, signal field transmission for the packet mode auto-detection, and gain control based on the packet mode

Provided are a method and an apparatus for management of a block-chain-based subject data according to an exemplary embodiment of the present disclosure. A block-chain-based subject data management method which is performed by a processor of a subject data management apparatus includes: creating subject data in accordance with a request of a user device; creating first metadata related to the subject data; creating a first block including the created first metadata to store the first block in a block chain included in the subject data management apparatus; creating first code information based on information included in the first block; and storing the created first code information and the subject data in a database, and the first code information is used as address information of the database in which the subject data is stored.

Method and apparatus for managing subject data based on block chain

Power saving method in wireless communication system

The present invention relates to an orthogonal frequency division multiplexing wireless local area network (LAN) transmitting/receiving system for providing expanded service coverage, and a method thereof. A first OFDM modulation is performed for an even-numbered time, and a second OFDM modulation is performed for an odd-numbered time. A transmitting frame including a plurality of signal fields according to the first and second OFDM modulation is transmitted. The receiving system determines whether a signal field is repeatedly generated in the frame. If the signal field is not repeatedly generated, corresponding demodulation is performed. If repeatedly performed, the signal field is demodulated by using first bit allocation information and second bit allocation information having a &#xbd; value of the first bit allocation information. A data field is demodulated according to the demodulated signal field.

Transmitting and receiving systems for increasing service coverage in orthogonal frequency division multiplexing wireless local area network, and method thereof

Method and apparatus for transceiving data in a MIMO system

Growing community of inventors

Seoul, South Korea

Il-Gu Lee