Inventor
CHANG SUNG CHEOL
KR105 patents
⚠️ This page may combine multiple inventors who share the name “CHANG SUNG CHEOL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELECTRONICS & TELECOMMUNICATIONS RES INST
22 patentsUS10425830B2Sep 24, 2019
Mobile communication network system and method for composing network component configurations
ELECTRONICS & TELECOMMUNICATIONS RES INST9 citations84
US10219159B2Feb 26, 2019
Method and apparatus for transmitting and receiving reference signal using unlicensed band
ELECTRONICS & TELECOMMUNICATIONS RES INST8 citations84
US12519571B2Jan 6, 2026
Communication method and apparatus using multiple panels
ELECTRONICS & TELECOMMUNICATIONS RES INST3 citations75
US11129173B2Sep 21, 2021
Method and apparatus for transmitting sidelink feedback information
ELECTRONICS & TELECOMMUNICATIONS RES INST2 citations73
US10637701B2Apr 28, 2020
Method and apparatus for transmitting physical uplink control channel
ELECTRONICS & TELECOMMUNICATIONS RES INST3 citations73
US10333738B2Jun 25, 2019
Method and apparatus for receiving data and method for transmitting data in mobile communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST5 citations73
US9749098B2Aug 29, 2017
Method and apparatus for transmitting and receiving system information in mobile communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST6 citations73
US10039134B2Jul 31, 2018
Method and apparatus for random access in wireless communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST2 citations72
US12114351B2Oct 8, 2024
Method and apparatus for extending coverage in communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations63
US12096512B2Sep 17, 2024
Method and apparatus for relaying public signals in communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations63
US12063591B2Aug 13, 2024
Method and apparatus for relay utilizing sidelink in wireless communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations63
US11611989B2Mar 21, 2023
Method and apparatus for extending coverage in communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations63
US12356453B2Jul 8, 2025
Method 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 resource
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations62
US11272541B2Mar 8, 2022
Method 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 resouce
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations62
US10277366B2Apr 30, 2019
Method and apparatus for transmitting signal using unlicensed band in cellular system
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations62
US9525467B2Dec 20, 2016
Cooperation multi-input multi-output transmitting/receiving method and terminal for supporting the same
ELECTRONICS & TELECOMMUNICATIONS RES INST2 citations62
US10178695B2Jan 8, 2019
Communication method for preventing signal collision in peer aware communication system and apparatus for transmitting/receiving using the method
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations59
US12543173B2Feb 3, 2026
Method and apparatus for predicting traffic and transmitting a buffer prediction status report
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations52
US12238723B2Feb 25, 2025
Link adaptation method in mobile communication system and device therefor
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations52
US12137479B2Nov 5, 2024
Method and apparatus for coverage enhancement of terminal in communication system
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations52
US11678284B2Jun 13, 2023
Radio communication method for time-sensitive network, and apparatus therefor
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations52
US11206592B2Dec 21, 2021
Method of transmitting low-latency data during handover in communication system, and apparatus therefor
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations52
KOREA ELECTRONICS TELECOMM
8 patentsUS7907733B2Mar 15, 2011
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
KOREA ELECTRONICS TELECOMM33 citations92
US9042346B2May 26, 2015
Mobile relay station and handover method thereof
KOREA ELECTRONICS TELECOMM8 citations84
US7174166B2Feb 6, 2007
Handover method in next generation mobile communication system
KOREA ELECTRONICS TELECOMM18 citations84
US9319127B2Apr 19, 2016
Method of relay between devices
KOREA ELECTRONICS TELECOMM4 citations73
US9276693B2Mar 1, 2016
Apparatus and method for transmitting synchronization signal
KOREA ELECTRONICS TELECOMM3 citations72
US9179269B2Nov 3, 2015
Method and apparatus for transmitting synchronization signal in talk-around direct communication network
KOREA ELECTRONICS TELECOMM2 citations63
US9265071B2Feb 16, 2016
Signalling method for direct communication between terminals
KOREA ELECTRONICS TELECOMM0 citations52
US9264175B2Feb 16, 2016
Method and apparatus for detecting collision in wireless multi-access channel
KOREA ELECTRONICS TELECOMM0 citations52
KIM WON-IK
4 patentsUS8326304B2Dec 4, 2012
Femtocell search method for macro to femto handover
KIM WON-IK11 citations84
US8725183B2May 13, 2014
Device and method for managing base station and terminal
KIM WON-IK4 citations73
US8718679B2May 6, 2014
Method for broadcasting and method for receiving location information of base station
KIM WON-IK2 citations62
US8331940B2Dec 11, 2012
Method and device for transmitting scanning start information of different radio access network
KIM WON-IK5 citations62
KIM EUNKYUNG
4 patentsUS9154922B2Oct 6, 2015
Multicast management method and apparatus
KIM EUNKYUNG2 citations63
US8948073B2Feb 3, 2015
Method and apparatus for managing carrier of multicast and broadcast service
KIM EUNKYUNG2 citations63
US8842832B2Sep 23, 2014
Method and apparatus for supporting security in muliticast communication
KIM EUNKYUNG2 citations63
US9226116B2Dec 29, 2015
Method and apparatus for managing configuration information of multicast and broadcast service
KIM EUNKYUNG0 citations52
CHANG SUNG CHEOL
3 patentsUS8214500B2Jul 3, 2012
Method for allocating resource and receiving data to control a transmission error
CHANG SUNG CHEOL9 citations84
US8855566B2Oct 7, 2014
Apparatus for managing radio resources of base station and method for managing the same
CHANG SUNG CHEOL3 citations62
US8730832B2May 20, 2014
Method and terminal for performing direct communication between terminals
CHANG SUNG CHEOL2 citations62
JIN SUNG-GEUN
3 patentsUS8830877B2Sep 9, 2014
Transmitting device, transmitting method, and receiving method for multicast and broadcast service
JIN SUNG-GEUN6 citations73
US8630649B2Jan 14, 2014
Terminal, method for handover thereof and supporting method for handover of base station
JIN SUNG-GEUN2 citations62
US8548468B2Oct 1, 2013
Method for providing service of femtocell, and transmitter and receiver for the same
JIN SUNG-GEUN2 citations62
KIM SUNG KYUNG
2 patentsSAMSUNG ELECTRONICS CO LTD
2 patentsKWAK BYUNG-JAE
1 patentKIM HYUN-JAE
1 patentShowing the top 50 of 105 patents by PatentIndex Score.