Inventor · disambiguated record
Chang-Hoi Koo
Also filed as: KOO CHANG-HOI
84 granted patents·24 pending applications·2,724 citations·filing 1999–2014
99Inventor score
Top patents by PatentIndex Score
108 records- 0197US7483447B2Apparatus and method for exchanging variable-length data according to radio link protocol in mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Jan 27, 2009·63 cites·8 claims
- 0297US7336953B2System and method for determining handover at a base station request in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Feb 26, 2008·137 cites·18 claims
- 0397US6859445B1Channel assignment apparatus and method for a common packet channel in a WCDMA mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Feb 22, 2005·202 cites·22 claims
- 0496US6963540B2Apparatus and method for assigning a common packet channel in a CDMA communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Nov 8, 2005·148 cites·35 claims
- 0595US7593732B2System and method for supporting soft handover in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Sep 22, 2009·38 cites·17 claims
- 0695US7400898B2Method for operation of HARQ in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Jul 15, 2008·43 cites·30 claims
- 0794US7522553B2System and method for updating a sleep ID of a mobile station in a BWA communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Apr 21, 2009·26 cites·16 claims
- 0894US7480509B2Handover system and method for minimizing service delay due to pingpong effect in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Jan 20, 2009·36 cites·24 claims
- 0994US7260405B2Method for measuring and reporting channel quality in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Aug 21, 2007·64 cites·16 claims
- 1094US7068681B2Apparatus and method for exchanging variable-length data according to radio link protocol in mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Jun 27, 2006·54 cites·4 claims
- 1194US6882632B1Method and apparatus for releasing SCH in CDMA mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Apr 19, 2005·76 cites·58 claims
- 1294US6665313B1Apparatus and method for exchanging variable-length data according to radio link protocol in mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Dec 16, 2003·89 cites·8 claims
- 1393US7676230B2System and method for allocating a channel quality information channel in a communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2006·Granted Mar 9, 2010·22 cites·14 claims
- 1493US7113496B2Apparatus and method for assigning a common packet channel in a CDMA communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2001·Granted Sep 26, 2006·91 cites·22 claims
- 1593US7039029B2Device and method for gating transmission in a CDMA mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted May 2, 2006·77 cites·7 claims
- 1692US7450909B2Apparatus and method for signal transmission and reception using downlink channel information in a sleep mode in a BWA communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Nov 11, 2008·25 cites·12 claims
- 1792US6621809B1Device and method for gating transmission in a CDMA mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 1999·Granted Sep 16, 2003·136 cites·13 claims
- 1891US7593731B2System and method for performing a fast handover in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Sep 22, 2009·20 cites·5 claims
- 1991US6895010B1Apparatus and method for transmitting and receiving data according to radio link protocol in a mobile communications systemsSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted May 17, 2005·73 cites·7 claims
- 2091US6804219B2Data transmitting method in a CDMA systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Oct 12, 2004·67 cites·10 claims
- 2189US7400642B2Apparatus and method for controlling operational states of medium access control layer in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Jul 15, 2008·56 cites·39 claims
- 2289US7061890B2Method for selecting RACH in a CDMA mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2001·Granted Jun 13, 2006·42 cites·12 claims
- 2388US7920525B2Method for measuring and reporting channel quality in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2007·Granted Apr 5, 2011·12 cites·6 claims
- 2488US7570618B2System and method for performing handover in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Aug 4, 2009·40 cites·31 claims
- 2588US7218619B2Call admission method in CDMA mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2001·Granted May 15, 2007·54 cites·17 claims
- 2688US7185257B2Data transmitting/receiving method in HARQ data communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2001·Granted Feb 27, 2007·59 cites·9 claims
- 2787US7363038B2System and method for performing handover operation in broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Apr 22, 2008·29 cites·36 claims
- 2886US7848295B2System and method for managing a band AMC subchannel in an orthogonal frequency division multiple access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Dec 7, 2010·14 cites·15 claims
- 2986US7693520B2System and method for selecting a serving base station according to a drop of a mobile subscriber station in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2007·Granted Apr 6, 2010·10 cites·62 claims
- 3086US7515559B2Handoff system using an initial ranging scheme in a broadband wireless access communication system and method for controlling the sameSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Apr 7, 2009·42 cites·30 claims
- 3186US7269145B2Mode transition method for wireless data service in a mobile stationSAMSUNG ELECTRONICS CO LTD·Filed 2002·Granted Sep 11, 2007·48 cites·12 claims
- 3286US7058124B2Reverse data transmission method and apparatus in mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2001·Granted Jun 6, 2006·33 cites·27 claims
- 3386US6961326B1Apparatus and method for transmitting variable-length data according to a radio link protocol in a mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Nov 1, 2005·47 cites·7 claims
- 3485US7430418B2System and method for selecting a serving base station according to a drop of a mobile subscriber station in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Sep 30, 2008·24 cites·6 claims
- 3585US7317711B2Method of controlling reverse transmission in a mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2002·Granted Jan 8, 2008·39 cites·20 claims
- 3684US7813734B2System and method to perform a handover in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2007·Granted Oct 12, 2010·10 cites·11 claims
- 3784US7519368B2System and method for performing network re-entry in a communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2006·Granted Apr 14, 2009·11 cites·10 claims
- 3884US6889048B1Call processing method and apparatus for effective QoS control in mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted May 3, 2005·36 cites·23 claims
- 3983US7623864B2System and method for handover to minimize service delay due to ping pong effect in BWA communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Nov 24, 2009·9 cites·15 claims
- 4083US7310303B2Ranging method for mobile communication system based on orthogonal frequency division multiple access schemeSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Dec 18, 2007·35 cites·22 claims
- 4183US7283482B2Reverse data transmission apparatus and method in a mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2002·Granted Oct 16, 2007·34 cites·28 claims
- 4283US7184447B1Apparatus and method for designating a reverse common channel for dedicated communication in a mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Feb 27, 2007·34 cites·20 claims
- 4383US6920152B1Apparatus and method for exchanging variable-length data according to a radio link protocol in a mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2000·Granted Jul 19, 2005·25 cites·6 claims
- 4481US7920868B2System and method for performing a fast handover in a broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2009·Granted Apr 5, 2011·7 cites·10 claims
- 4581US7873044B2Method for transmitting/receiving data in a communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2006·Granted Jan 18, 2011·9 cites·28 claims
- 4681US7603147B2System and method for periodic ranging in a sleep mode in a BWA communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Oct 13, 2009·10 cites·19 claims
- 4780US8553585B2Method for measuring and reporting channel quality in a broadband wireless access communication systemKIM SO-HYUN·Filed 2011·Granted Oct 8, 2013·4 cites·19 claims
- 4880US7609635B2Method of controlling reverse transmission in a mobile communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2002·Granted Oct 27, 2009·20 cites·21 claims
- 4980US7493090B2System and method for flexibly configuring length of neighbor base station information in broadband wireless access communication systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Feb 17, 2009·7 cites·10 claims
- 5080US7236740B2Data retransmission apparatus and method in a mobile communication system employing HARQ techniqueSAMSUNG ELECTRONICS CO LTD·Filed 2001·Granted Jun 26, 2007·27 cites·10 claims
Showing the top 50 of 108 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →