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Han-Byul
Han-Byul Kim, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110003568 | APPARATUS AND METHOD FOR SEARCHING RADIO CHANNEL IN A PORTABLE TERMINAL - An apparatus and method for searching for an improved radio broadcast in a portable terminal are provided. The apparatus includes a radio function performance unit. If an input for a radio broadcast channel search is detected while listening to a radio broadcast, the radio function performance unit changes from an original previously listened radio broadcast to a radio broadcast corresponding to the detected input. If the input for the radio broadcast channel search is released, the radio broadcast channel is restored to the original previously listened radio broadcast channel. | 01-06-2011 |
Han-Byul Seo, Gwanak-Gu KR
| Patent application number | Description | Published |
|---|---|---|
| 20090241002 | Method and apparatus for selecting retransmission mode in a mimo communication system - A method and apparatus for selecting a retransmission mode in a MIMO communication system are provided wherein a receiver receives m initial transmission streams from a transmitter, m being an integer of 2 or larger, channel-decodes the m initial transmission streams and checking errors in the m channel-decoded streams, selects, if at least two channel-decoded streams have errors among the m channel-decoded streams, a retransmission mode to be used for the at least two streams having errors in the transmitter, and transmits information including the selected retransmission mode to the transmitter. | 09-24-2009 |
Han-Byul Seo, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090196273 | Apparatus and method for transmitting data in wireless communication system - An apparatus and a method for a random access scheme for multi-channel in a wireless communication system are provided. The method for performing the random access scheme for the multi-channel in the wireless communication system includes randomly generating a backoff counter value to transmit data; adjusting the backoff counter value by taking into account status of a plurality of idle subcarrier sets per backoff slot; when the backoff counter value becomes zero, selecting one or more subcarrier sets to carry the data from the idle subcarrier sets; and transmitting the data through the selected one or more subcarrier sets. The data collision probability between the terminals can be lowered, the channel utility can be enhanced, the transfer rate in the single-channel random access scheme can be raised, and the consumption of the radio resource can be reduced without using signals for the band request and allocation. | 08-06-2009 |
Han-Byul Seo, Anyang KR
| Patent application number | Description | Published |
|---|---|---|
| 20120002598 | METHOD AND APPARATUS FOR TRANSMITTING DATA ON RELAY COMMUNICATION SYSTEM - A data transmission method and apparatus using a multi-point cooperative transmission for a backhaul link transmission of a relay communication system. A data transmission method of a base station in a radio relay communication system include: obtaining, by a first BS, first radio resource information scheduled by a neighbor BS with respect to a first relay node (RN) located within the coverage of the first BS; when the first BS has data to be transmitted to the first RN, scheduling the data of the first BS on first radio resource allocated by the neighbor BS; and transmitting, by the first BS, the data of the first BS on the first BS, wherein the first RN is located within an overlapping cell coverage between the first BS and the neighbor BS. Thus, backhaul link transmission efficiency between the BS and the RN in the relay communication system can be improved and an inter-cell interference with respect to a backhaul link can be reduced. | 01-05-2012 |