| Patent | Date |
|---|
Handover method in wireless portable internet system
Grant 8,934,448 - Cha , et al. January 13, 2 | 2015-01-13 |
Apparatus and method for scheduling of high-speed portable internet system
Grant 8,792,415 - Kim , et al. July 29, 2 | 2014-07-29 |
Method for negotiating security-related functions of subscriber station in wireless portable internet system
Grant 8,656,480 - Cho , et al. February 18, 2 | 2014-02-18 |
Method for requesting, generating and distributing service-specific traffic encryption key in wireless portable internet system, apparatus for the same, and protocol configuration method for the same
Grant 8,615,218 - Cho , et al. December 24, 2 | 2013-12-24 |
Method and apparatus for uplink timing synchronization with ranging signal in mobile communication system
Grant 8,600,420 - Lee , et al. December 3, 2 | 2013-12-03 |
Method for allocating and accessing radio resources in OFDMA system
Grant 8,588,145 - Yoon , et al. November 19, 2 | 2013-11-19 |
Wireless internet terminal and packet transmission method for improving quality of service
Grant 8,588,189 - Lee , et al. November 19, 2 | 2013-11-19 |
Method for allocating authorization key identifier for wireless portable internet system
Grant 8,479,270 - Cho , et al. July 2, 2 | 2013-07-02 |
Method for requesting and reporting channel quality information in wireless system and apparatus thereof
Grant 8,462,706 - Yoon , et al. June 11, 2 | 2013-06-11 |
Digital clipping method for a transmitter of an orthogonal frequency division multiple access system
Grant 8,406,320 - Park , et al. March 26, 2 | 2013-03-26 |
Method for requesting and reporting channel quality information in wireless portable internet system
Grant 8,374,145 - Yoon , et al. February 12, 2 | 2013-02-12 |
System and method for timing acquisition and carrier frequency offset estimation in wireless communication based on OFDM
Grant 8,300,621 - Lim , et al. October 30, 2 | 2012-10-30 |
Apparatus and method for processing ranging channel of communication system
Grant 8,199,738 - Sohn , et al. June 12, 2 | 2012-06-12 |
Terminal in wireless communication system and ranging method thereof
Grant 8,194,619 - Lee , et al. June 5, 2 | 2012-06-05 |
Apparatus and method for automatic gain control of mobile station in OFDM system
Grant 8,194,804 - Kim , et al. June 5, 2 | 2012-06-05 |
Apparatus and method for monitoring base station signal in communication system having multiple antennas
Grant 8,184,606 - Bang , et al. May 22, 2 | 2012-05-22 |
Apparatus for cancelling DC offset and method thereof
Grant 8,170,147 - Lee , et al. May 1, 2 | 2012-05-01 |
Method for managing group traffic encryption key in wireless portable internet system
Grant 8,160,254 - Cho , et al. April 17, 2 | 2012-04-17 |
Method and apparatus for upper level protocol message
Grant 8,160,102 - Cha , et al. April 17, 2 | 2012-04-17 |
Method for preamble-based bandwidth request in wireless portable internet system
Grant 8,155,104 - Yoon , et al. April 10, 2 | 2012-04-10 |
Method for authenticating subscriber station, method for configuring protocol thereof, and apparatus thereof in wireless portable internet system
Grant 8,140,054 - Park , et al. March 20, 2 | 2012-03-20 |
Subcarrier allocation apparatus and method, subcarrier de-allocation apparatus and method in OFDM system
Grant 8,134,914 - Kim , et al. March 13, 2 | 2012-03-13 |
Method for security association negotiation with extensible authentication protocol in wireless portable internet system
Grant 8,127,136 - Yun , et al. February 28, 2 | 2012-02-28 |
Sphere decoder and decoding method thereof
Grant 8,117,522 - Kim , et al. February 14, 2 | 2012-02-14 |
Decoding method for space-time encoding transmission scheme in with multiple input multiple output system and receiving apparatus for using the method
Grant 8,107,514 - Lee , et al. January 31, 2 | 2012-01-31 |
Cell search device of cellular system using OFDMA scheme and method thereof
Grant 8,103,273 - Yu , et al. January 24, 2 | 2012-01-24 |
Apparatus and method for classifying quality-of-service of packet in portable internet system
Grant 8,094,549 - Bae , et al. January 10, 2 | 2012-01-10 |
Method and apparatus for allocating transmission power in communication system with multiple antennas
Grant 8,077,792 - Lee , et al. December 13, 2 | 2011-12-13 |
Decoding apparatus and method thereof
Grant 8,074,138 - Chae , et al. December 6, 2 | 2011-12-06 |
Demodulation apparatus for efficiently embodying adaptive modulation and coding method in OFDMA based packet communication system and method thereof
Grant 8,068,510 - Kim , et al. November 29, 2 | 2011-11-29 |
Wireless communication system and method for managing service flow identifier in the same
Grant 8,059,598 - Moon , et al. November 15, 2 | 2011-11-15 |
Viterbi decoder and method thereof
Grant 8,055,986 - Chae , et al. November 8, 2 | 2011-11-08 |
Terminal in wireless communication system and ranging method for dynamically changing ranging period thereof
Grant 8,027,368 - Lee , et al. September 27, 2 | 2011-09-27 |
Method for requesting and reporting channel quality information in wireless portable internet system
Grant 8,018,911 - Yoon , et al. September 13, 2 | 2011-09-13 |
Carrier to interference and noise ratio (CINR) estimating method and device using preamble in orthogonal frequency division multiplexing (OFDM)
Grant 8,019,021 - Lee , et al. September 13, 2 | 2011-09-13 |
Apparatus and method for generating ranging pseudo noise code
Grant 7,991,057 - Sohn , et al. August 2, 2 | 2011-08-02 |
Internal data structure of mobile terminal for QoS-based uplink data transmission, and operational methods thereof
Grant 7,978,651 - Lee , et al. July 12, 2 | 2011-07-12 |
Method for allocating authorization key identifier for wireless portable internet system
Grant 7,978,855 - Cho , et al. July 12, 2 | 2011-07-12 |
Terminal and method for controlling transmission power
Grant 7,970,363 - Kim , et al. June 28, 2 | 2011-06-28 |
Channel mode converting method of a wireless portable internet system
Grant 7,962,131 - Lee , et al. June 14, 2 | 2011-06-14 |
Transmitting apparatus in orthogonal frequency division multiplexing access system capable of controlling gain for variation of sub-channel allocation and method for transmitting data thereof
Grant 7,953,165 - Kim , et al. May 31, 2 | 2011-05-31 |
Low density parity check encoder using costas array, and channel encoder of high speed portable internet system comprising the same and channel encoding method
Grant 7,954,035 - Chae , et al. May 31, 2 | 2011-05-31 |
Terminal of portable internet system and method of transmitting uplink data in terminal
Grant 7,944,824 - Lee , et al. May 17, 2 | 2011-05-17 |
Apparatus and method for calibration in a communication system
Grant 7,940,858 - Lee , et al. May 10, 2 | 2011-05-10 |
Diversity transmission method and transmitter of a base station using the same in a mobile communication system
Grant 7,941,104 - Lim , et al. May 10, 2 | 2011-05-10 |
Receiver apparatus of the adaptive ICI cancellation iterative receiver in wireless communication system and ICI cancellation method
Grant 7,936,832 - Ma , et al. May 3, 2 | 2011-05-03 |
Terminal demodulation apparatus and method
Grant 7,929,621 - Kim , et al. April 19, 2 | 2011-04-19 |
Terminal and method for managing bandwidth of terminal
Grant 7,929,566 - Lee , et al. April 19, 2 | 2011-04-19 |
Method for maximal ratio combining of spatially filtered signals and apparatus therefor
Grant 7,925,234 - Yeh , et al. April 12, 2 | 2011-04-12 |
Method and apparatus for controlling power saving mode in wireless portable internet system
Grant 7,912,467 - Yoon , et al. March 22, 2 | 2011-03-22 |
Method for managing traffic encryption key in wireless portable internet system and protocol configuration method thereof, and operation method of traffic encryption key state machine in subscriber station
Grant 7,907,733 - Cho , et al. March 15, 2 | 2011-03-15 |
Method and device for searching and deallocating abnormal terminal in wireless portable internet system
Grant 7,904,070 - Lee , et al. March 8, 2 | 2011-03-08 |
Smart antenna system and method thereof for forming uplink eigenbeam of OFDM/TDD
Grant 7,889,805 - Kim , et al. February 15, 2 | 2011-02-15 |
Apparatus and method for downlink packet scheduling in base station of a portable internet system
Grant 7,873,050 - Kim , et al. January 18, 2 | 2011-01-18 |
Apparatus and method for accounting in wireless communication system
Grant 7,873,364 - Park , et al. January 18, 2 | 2011-01-18 |
Communication terminal and additional function module thereof
Grant 7,860,238 - Lee , et al. December 28, 2 | 2010-12-28 |
Method for dynamic address allocation using mobile IP in wireless portable Internet system
Grant 7,860,067 - Na , et al. December 28, 2 | 2010-12-28 |
Method for transmitting security context for handover in portable internet system
Grant 7,848,513 - Yun , et al. December 7, 2 | 2010-12-07 |
Method for recovering ARQ data in wireless portable internet system
Grant 7,848,755 - Cha , et al. December 7, 2 | 2010-12-07 |
Method for updating DNS address in mobile IP terminal
Grant 7,826,410 - Jun , et al. November 2, 2 | 2010-11-02 |
Mobile station in orthogonal frequency division multiplexing access system and transmit power control method thereof
Grant 7,826,543 - Kim , et al. November 2, 2 | 2010-11-02 |
Method for generating /changing transport connection identifier in portable internet network and portable subscriber station therefor
Grant 7,821,961 - Bae , et al. October 26, 2 | 2010-10-26 |
Apparatus and method for generating ranging pseudo noise code
Grant 7,817,707 - Sohn , et al. October 19, 2 | 2010-10-19 |
Method and apparatus for requesting and reporting channel quality information in mobile communication system
Grant 7,813,291 - Yoon , et al. October 12, 2 | 2010-10-12 |
Synchronous orthogonal frequency division multiplexing receiving apparatus in multi-cell environment and method thereof
Grant 7,801,088 - Kim , et al. September 21, 2 | 2010-09-21 |
Method for allocating data and pilots, and transmitting method and device and receiving method and device using the same in orthogonal frequency division multiple access system
Grant 7,796,695 - Lee , et al. September 14, 2 | 2010-09-14 |
Method for designing operation schedules of FFT and MIMO-OFDM modem thereof
Grant 7,796,577 - Kim , et al. September 14, 2 | 2010-09-14 |
Automatic gain control apparatus and method in orthogonal frequency division multiplexing
Grant 7,782,977 - Lee , et al. August 24, 2 | 2010-08-24 |
Method and apparatus for estimating timing error and frequency offset of MIMO system
Grant 7,778,338 - Ma , et al. August 17, 2 | 2010-08-17 |
Method and apparatus for allocating transmission opportunity in communication system
Grant 7,773,627 - Kim , et al. August 10, 2 | 2010-08-10 |
System and method for controlling power saving mode in wireless portable network system
Grant 7,769,414 - Yoon , et al. August 3, 2 | 2010-08-03 |
Method for traffic indication and channel adaptation for sleep mode terminals, and an apparatus thereof
Grant 7,768,966 - Yoon , et al. August 3, 2 | 2010-08-03 |
Viterbi decoder and viterbi decoding method
Grant 7,765,459 - Chae , et al. July 27, 2 | 2010-07-27 |
Power control method for uplink in mobile communication and apparatus thereof
Grant 7,761,112 - Lee , et al. July 20, 2 | 2010-07-20 |
Signal transmitting and receiving device and method of mobile communication system
Grant 7,757,155 - Lim , et al. July 13, 2 | 2010-07-13 |
Method for creating feedback message for ARQ in mobile communication system
Grant 7,752,519 - Yeo , et al. July 6, 2 | 2010-07-06 |
Method for automatic gain control before initial synchronization in OFDM system and apparatus thereof
Grant 7,746,966 - Lee , et al. June 29, 2 | 2010-06-29 |
Apparatus and method for estimating frequency offset
Grant 7,742,391 - Yu , et al. June 22, 2 | 2010-06-22 |
Apparatus and method for allocating subchannel and power in communication system, and transmitting apparatus
Grant 7,738,420 - Kim , et al. June 15, 2 | 2010-06-15 |
Apparatus and method for measuring received signal strength indicator, and recording medium storing program embodying the same method
Grant 7,738,544 - Yeh , et al. June 15, 2 | 2010-06-15 |
Down-link data transmission and receiving system and method of ARQ in wireless communication system
Grant 7,729,665 - Sung , et al. June 1, 2 | 2010-06-01 |
Interference cancellation method and module for OFDMA mobile communication system
Grant 7,680,458 - Lim , et al. March 16, 2 | 2010-03-16 |
Downlink beamforming apparatus in OFDMA system and transmission apparatus including the same
Grant 7,646,749 - Park , et al. January 12, 2 | 2010-01-12 |
Method for retransmitting packet in mobile communication system and computer-readable medium recorded program thereof
Grant 7,631,239 - Yeo , et al. December 8, 2 | 2009-12-08 |
Receiving apparatus and receiving method of communication system with multiple antennas
Grant 7,593,754 - Lee , et al. September 22, 2 | 2009-09-22 |
Method and device for allocating radio resources in wireless portable network system
Grant 7,551,937 - Kim , et al. June 23, 2 | 2009-06-23 |
Apparatus and method for processing ranging channel in orthogonal frequency division multiple access system
Grant 7,515,641 - Yu , et al. April 7, 2 | 2009-04-07 |
Smart antenna beamforming device in communication system and method thereof
Grant 7,477,190 - Bang , et al. January 13, 2 | 2009-01-13 |
Uplink channel estimation system for orthogonal frequency division multiple access system and method thereof
Grant 7,428,267 - Lee , et al. September 23, 2 | 2008-09-23 |
Uplink ranging system and method in OFDMA system
Grant 7,359,366 - Lee , et al. April 15, 2 | 2008-04-15 |
Apparatus and method for separating transmit and receive signals for time division duplexing radio system
Grant 7,349,674 - Jung , et al. March 25, 2 | 2008-03-25 |
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