Inventor · disambiguated record
Sung Cheol Chang
Also filed as: CHANG SUNG CHEOL
103 granted patents·75 pending applications·197 citations·filing 2003–2025
99Inventor score
Files withELECTRONICS & TELECOMMUNICATIONS RES INST67KOREA ELECTRONICS TELECOMM35KIM EUNKYUNG21CHANG SUNG CHEOL19KIM SUNG KYUNG8
Top patents by PatentIndex Score
178 records- 0193US10425830B2Mobile communication network system and method for composing network component configurationsELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Sep 24, 2019·9 cites·20 claims
- 0292US10219159B2Method and apparatus for transmitting and receiving reference signal using unlicensed bandELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Feb 26, 2019·8 cites·13 claims
- 0392US7907733B2Method 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 stationKOREA ELECTRONICS TELECOMM·Filed 2005·Granted Mar 15, 2011·33 cites·45 claims
- 0489US9749098B2Method and apparatus for transmitting and receiving system information in mobile communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2015·Granted Aug 29, 2017·6 cites·15 claims
- 0587US9042346B2Mobile relay station and handover method thereofKOREA ELECTRONICS TELECOMM·Filed 2013·Granted May 26, 2015·8 cites·13 claims
- 0685US10333738B2Method and apparatus for receiving data and method for transmitting data in mobile communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Jun 25, 2019·5 cites·20 claims
- 0784US12063591B2Method and apparatus for relay utilizing sidelink in wireless communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2021·Granted Aug 13, 2024·1 cites·8 claims
- 0884US8326304B2Femtocell search method for macro to femto handoverKIM WON-IK·Filed 2009·Granted Dec 4, 2012·11 cites·14 claims
- 0983US8559360B2Method and apparatus for controlling power for uplinkKIM HYUN-JAE·Filed 2010·Granted Oct 15, 2013·6 cites·19 claims
- 1082US8214500B2Method for allocating resource and receiving data to control a transmission errorCHANG SUNG CHEOL·Filed 2008·Granted Jul 3, 2012·9 cites·4 claims
- 1181US2024430930A1Method and apparatus for extending coverage in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2024·Application pending·0 cites
- 1280US9319127B2Method of relay between devicesKOREA ELECTRONICS TELECOMM·Filed 2014·Granted Apr 19, 2016·4 cites·17 claims
- 1380US8331940B2Method and device for transmitting scanning start information of different radio access networkKIM WON-IK·Filed 2011·Granted Dec 11, 2012·5 cites·15 claims
- 1479US12114351B2Method and apparatus for extending coverage in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2023·Granted Oct 8, 2024·0 cites·20 claims
- 1579US10637701B2Method and apparatus for transmitting physical uplink control channelELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Apr 28, 2020·3 cites·19 claims
- 1678US11129173B2Method and apparatus for transmitting sidelink feedback informationELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2019·Granted Sep 21, 2021·2 cites·17 claims
- 1778US8369862B2Resource allocation and power control methodSAMSUNG ELECTRONICS CO LTD·Filed 2010·Granted Feb 5, 2013·4 cites·14 claims
- 1878US2025024516A1Method and apparatus for coverage enhancement of terminal in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2024·Application pending·0 cites
- 1977US8725183B2Device and method for managing base station and terminalKIM WON-IK·Filed 2010·Granted May 13, 2014·4 cites·11 claims
- 2077US2024414515A1Method and apparatus for relaying public signals in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2024·Application pending·0 cites
- 2177US2025267663A1Operation method of terminal, and terminal apparatus for the sameELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2025·Application pending·0 cites
- 2276US9276693B2Apparatus and method for transmitting synchronization signalKOREA ELECTRONICS TELECOMM·Filed 2014·Granted Mar 1, 2016·3 cites·19 claims
- 2376US8830877B2Transmitting device, transmitting method, and receiving method for multicast and broadcast serviceJIN SUNG-GEUN·Filed 2009·Granted Sep 9, 2014·6 cites·14 claims
- 2476US8208851B2Apparatus and method for relaying between base station and mobile station, and method for receiving control informationKWAK BYUNG-JAE·Filed 2007·Granted Jun 26, 2012·7 cites·2 claims
- 2575US10039134B2Method and apparatus for random access in wireless communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2015·Granted Jul 31, 2018·2 cites·19 claims
- 2674US12356453B2Method and apparatus for managing allocation and usage of radio resource, method and apparatus for transmitting data through unlicensed band channel, and method and apparatus for managing access of radio resourceELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2022·Granted Jul 8, 2025·0 cites·10 claims
- 2774US8522103B2Method and apparatus for controlling retransmissionKIM SUNG KYUNG·Filed 2009·Granted Aug 27, 2013·5 cites·15 claims
- 2873US7174166B2Handover method in next generation mobile communication systemKOREA ELECTRONICS TELECOMM·Filed 2003·Granted Feb 6, 2007·18 cites·4 claims
- 2972US11611989B2Method and apparatus for extending coverage in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2021·Granted Mar 21, 2023·0 cites·20 claims
- 3072US8855566B2Apparatus for managing radio resources of base station and method for managing the sameCHANG SUNG CHEOL·Filed 2010·Granted Oct 7, 2014·3 cites·13 claims
- 3171US12096512B2Method and apparatus for relaying public signals in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2022·Granted Sep 17, 2024·0 cites·11 claims
- 3271US9179269B2Method and apparatus for transmitting synchronization signal in talk-around direct communication networkKOREA ELECTRONICS TELECOMM·Filed 2013·Granted Nov 3, 2015·2 cites·18 claims
- 3370US2025159688A1Link adaptation method in mobile communication system and device thereforELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2025·Application pending·0 cites
- 3469US12137479B2Method and apparatus for coverage enhancement of terminal in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2021·Granted Nov 5, 2024·0 cites·10 claims
- 3569US8948073B2Method and apparatus for managing carrier of multicast and broadcast serviceKIM EUNKYUNG·Filed 2011·Granted Feb 3, 2015·2 cites·22 claims
- 3669US8842832B2Method and apparatus for supporting security in muliticast communicationKIM EUNKYUNG·Filed 2011·Granted Sep 23, 2014·2 cites·15 claims
- 3769US8730832B2Method and terminal for performing direct communication between terminalsCHANG SUNG CHEOL·Filed 2012·Granted May 20, 2014·2 cites·19 claims
- 3868US9154922B2Multicast management method and apparatusKIM EUNKYUNG·Filed 2011·Granted Oct 6, 2015·2 cites·7 claims
- 3968US8548468B2Method for providing service of femtocell, and transmitter and receiver for the sameJIN SUNG-GEUN·Filed 2011·Granted Oct 1, 2013·2 cites·16 claims
- 4068US7978855B2Method for allocating authorization key identifier for wireless portable internet systemSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Jul 12, 2011·3 cites·21 claims
- 4167US9525467B2Cooperation multi-input multi-output transmitting/receiving method and terminal for supporting the sameELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2014·Granted Dec 20, 2016·2 cites·13 claims
- 4267US8717914B2Method for controlling interferenceKIM SUNG KYUNG·Filed 2010·Granted May 6, 2014·2 cites·14 claims
- 4367US2025317769A1Method and apparatus for measurement control in communication systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2025·Application pending·0 cites
- 4467US2022256572A1Operation method of terminal, and terminal apparatus for the sameELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2022·Application pending·0 cites
- 4564US10277366B2Method and apparatus for transmitting signal using unlicensed band in cellular systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Apr 30, 2019·1 cites·6 claims
- 4664US9204479B2Method of transmitting and receiving data in talk-around direct communication networkKOREA ELECTRONICS TELECOMM·Filed 2013·Granted Dec 1, 2015·1 cites·19 claims
- 4764US9191941B2Method and apparatus for managing resourceKOREA ELECTRONICS TELECOMM·Filed 2013·Granted Nov 17, 2015·1 cites·16 claims
- 4864US8718679B2Method for broadcasting and method for receiving location information of base stationKIM WON-IK·Filed 2009·Granted May 6, 2014·2 cites·14 claims
- 4964US8630649B2Terminal, method for handover thereof and supporting method for handover of base stationJIN SUNG-GEUN·Filed 2009·Granted Jan 14, 2014·2 cites·16 claims
- 5064US2025175875A1Techniques for operating conditional handover and conditional primary secondary cell addition or changeELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2024·Application pending·0 cites
Showing the top 50 of 178 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →