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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 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 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 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 |
Terminal in wireless communication system and ranging method thereof
Grant 8,194,619 - Lee , et al. June 5, 2 | 2012-06-05 |
Multi-mode communication system and method thereof
Grant 8,185,108 - Jung , 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 preamble-based bandwidth request in wireless portable internet system
Grant 8,155,104 - Yoon , et al. April 10, 2 | 2012-04-10 |
Apparatus and method for providing mobile instant messaging service
Grant 8,145,257 - Yim , et al. March 27, 2 | 2012-03-27 |
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 |
Method and apparatus for displaying messages in an idle state of mobile terminal, driving an application for an idle state in a mobile terminal and providing idle state contents for a mobile terminal
Grant 8,078,228 - Lim , 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 |
Method of vertical handoff
Grant 8,064,911 - Kim , et al. November 22, 2 | 2011-11-22 |
Method and apparatus for optimizing neighbor list automatically in asynchronous WCDMA network
Grant 8,059,602 - Kim November 15, 2 | 2011-11-15 |
Method and apparatus for optimizing neighbor list automatically in synchronous CDMA network
Grant 8,054,803 - Kim 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 |
Digital broadcasting transmitting system for conditional access and method thereof, and digital broadcasting receiving terminal and method thereof
Grant 8,014,525 - Hong September 6, 2 | 2011-09-06 |
System for providing application and management service and modifying user interface and method thereof
Grant 8,014,799 - Kuk , et al. September 6, 2 | 2011-09-06 |
Interworking System Between Ip Networks Using Different Ip Address Format, Application Layer Gateway (alg) Server, Stun Server, Network Address Translator, Interworking Method Thereof, And Sip Message Routing Method Thereof
App 20110191493 - Lee; Jang-Won ; et al. | 2011-08-04 |
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 |
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 |
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 |
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 |
Method for allocating IP address to mobile station in mobile communication system
Grant 7,873,003 - Baek , et al. January 18, 2 | 2011-01-18 |
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 |
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 updating DNS address in mobile IP terminal
Grant 7,826,410 - Jun , et al. November 2, 2 | 2010-11-02 |
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 designing operation schedules of FFT and MIMO-OFDM modem thereof
Grant 7,796,577 - Kim , et al. September 14, 2 | 2010-09-14 |
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 |
Automatic gain control apparatus and method in orthogonal frequency division multiplexing
Grant 7,782,977 - Lee , et al. August 24, 2 | 2010-08-24 |
Demodulator of base station in orthogonal frequency division multiple access
Grant 7,782,966 - Lee , et al. August 24, 2 | 2010-08-24 |
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 |
Method for discovering wireless network for inter-system handover, multi-mode terminal unit and inter-working service server using the method
Grant 7,761,099 - Kim , 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 |
Method For Transmitting Multimedia Message To Roamed Multimedia Message Receiver And System Thereof
App 20100056138 - Han; Sang-Woo | 2010-03-04 |
Method and apparatus for displaying messages in an idle state of mobile terminal, driving an application for an idle state in a mobile terminal and providing idle state contents for a mobile terminal
App 20100029303 - Lim; Sang-hyun ; et al. | 2010-02-04 |
Open Mobile Business Supporting System And Method
App 20090248475 - CHOI; Byoung-Cheol ; et al. | 2009-10-01 |
Orthogonal Frequency Division Multiplexing Wireless Communication Operable On Frequency Selective Channel, And Channel Compensation Method
App 20090219803 - Jwa; Jeong-Woo | 2009-09-03 |
Method for circulating an electronic gift certificate in online and offline system
Grant 7,580,864 - Ahn August 25, 2 | 2009-08-25 |
Low-cost network system between a base station controller and a base transceiver station, and method for transmitting data between them
Grant 7,565,167 - Lee , et al. July 21, 2 | 2009-07-21 |
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 |
Orthogonal frequency division multiplexing wireless communication operable on frequency selective channel, and channel compensation method
Grant 7,548,522 - Jwa June 16, 2 | 2009-06-16 |
Method for increasing standby time using access history to 1x ev-do network with access terminal and device thereof
Grant 7,536,451 - Ahn , et al. May 19, 2 | 2009-05-19 |
Method Of Providing Direction Information According To Real-time Traffic Conditions
App 20090112453 - Mo; Sung-Wook ; et al. | 2009-04-30 |
Method and apparatus for tunneling service of explicit multicast in mobile IP network
Grant 7,525,947 - Lee , et al. April 28, 2 | 2009-04-28 |
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 |
Method and apparatus for changing a sound source of a supplementary service using a ring back tone on calling
Grant 7,509,149 - Shim , et al. March 24, 2 | 2009-03-24 |
Method And System For Measuring Location Using Round Trip Time Information In Mobile Communication Network
App 20090073031 - KIM; Shin-Jae | 2009-03-19 |
Method For Controlling User Interface Menu, And Mobile Terminal And Device For Providing Application Service Using The Same
App 20090075633 - LEE; Seung-Youl ; et al. | 2009-03-19 |
Clock transmission apparatus for network synchronization between systems using an even-second clock and an Unshielded Twisted Pair (UTP)
Grant 7,499,512 - Kim March 3, 2 | 2009-03-03 |
Method And Apparatus For Providing Idle Screen Service
App 20090047940 - Lim; Sang-Hyun ; et al. | 2009-02-19 |
Method And Apparatus For Optimizing Neighbor List For Handover Management
App 20090047961 - Kim; Shin-Jae | 2009-02-19 |
Digital Device And Method For Providing Additional Service By Using The Same
App 20090029738 - KIM; Young-Sung ; et al. | 2009-01-29 |
System and apparatus for tunneling service of explicit multicast
Grant 7,471,678 - Lee , et al. December 30, 2 | 2008-12-30 |
Method and apparatus for receivability and reachability test of explicit multicast
Grant 7,471,679 - Lee December 30, 2 | 2008-12-30 |
Ic Card, Terminal With Ic Card And Initializing Method Thereof
App 20080320187 - KIM; Kyoung-Tae ; et al. | 2008-12-25 |
Device And Method For Controlling Overload
App 20080299986 - Lee; Woo-Suk | 2008-12-04 |
Method For Providing Mobile Service Using Code-pattern
App 20080247363 - Lee; Jae-Jun ; et al. | 2008-10-09 |
Method For Providing Mobile Service Using Code-pattern
App 20080245870 - Lee; Jae-Jun ; et al. | 2008-10-09 |
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 |
Method for providing mobile service using code-pattern
Grant 7,419,097 - Lee , et al. September 2, 2 | 2008-09-02 |
Method and Apparatus for Selling Used Contents
App 20080103983 - Jang; Jae-seok ; et al. | 2008-05-01 |
Uplink ranging system and method in OFDMA system
Grant 7,359,366 - Lee , et al. April 15, 2 | 2008-04-15 |
Method and Apparatus for Providing Virtual Mobile Phone Number
App 20080081617 - Yoo; Yong-kyu ; et al. | 2008-04-03 |
Certification Mobile Terminal and Electronic Commerce System and Method Using the Same
App 20080077534 - Son; Jeung-Yeup | 2008-03-27 |
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 |
Device and method for measuring receive sensitivity of communication system including receive-only path
Grant 7,327,984 - Oh , et al. February 5, 2 | 2008-02-05 |
Dualduplexer having matrix structure and method for forming the same
App 20070115863 - Seo; Tae-Won ; et al. | 2007-05-24 |
Apparatus and method for measuring output power of pilot channel at CDMA base station
Grant 7,158,812 - Lee , et al. January 2, 2 | 2007-01-02 |
Method for receiving data using SMS and wireless internet and system thereof
Grant 7,113,801 - Back , et al. September 26, 2 | 2006-09-26 |
CDMA terminal for providing roaming service to GSM service subscriber in CDMA service area
Grant 7,043,238 - Ahn , et al. May 9, 2 | 2006-05-09 |
Method and device for providing mobile services with virtual number
App 20050277407 - Ahn, Tae-Hyo ; et al. | 2005-12-15 |
Method for circulating an electronic gift certificate in online and offline system
App 20050273392 - Ahn, Hee-Jung | 2005-12-08 |
System and method for supervising repeater by using wireless mobile
Grant 6,941,137 - Park September 6, 2 | 2005-09-06 |
Method of supporting small group multicast in mobile IP
Grant 6,937,590 - Lee August 30, 2 | 2005-08-30 |
Orthogonal frequency division multiplexing wireless communication operable on frequency selective channel, and channel compensation method
App 20050073948 - Jwa, Jeong-Woo | 2005-04-07 |
Method for divisional billing and device thereof
Grant 6,757,371 - Kim , et al. June 29, 2 | 2004-06-29 |
On-line music data providing system via bluetooth headset
App 20040107271 - Ahn, Byung-Koo ; et al. | 2004-06-03 |
Method For Divisional Billing And Device Thereof
App 20040081302 - Kim, Yeon-Kil ; et al. | 2004-04-29 |
Batch type billing method and system by using dispersed processing
App 20040044601 - Kim, Yeon-Kil ; et al. | 2004-03-04 |
Method and apparatus for automatic call test in a CDMA system
Grant 6,567,381 - Jeon , et al. May 20, 2 | 2003-05-20 |
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