Inventor
Sung Cheol Chang
Inventor
Daejeon, KR
Overview
Patents· 91 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Wprimary
H04WWireless communication networks56%
H04LTransmission of digital information, e.g. telegraphic communication26%
H04BTransmission9%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use4%
H04JMultiplex communication2%
G01SRadio direction-finding1%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes1%
H03MCoding1%
PatentTitleYear
10,637,701Method and apparatus for transmitting physical uplink control channel202010,575,334Method and apparatus for fast access and method of supporting fast access in communication system202010,440,744Radio channel access method and apparatus201910,425,830Mobile communication network system and method for composing network component configurations201910,419,173Method and apparatus for transmitting uplink signal using a short transmit time interval201910,404,441Method and apparatus for configuring transmission time interval in mobile communication system201910,333,738Method and apparatus for receiving data and method for transmitting data in mobile communication system201910,277,366Method and apparatus for transmitting signal using unlicensed band in cellular system201910,244,526Method and apparatus for transmitting and receiving using short TTI201910,219,159Method and apparatus for transmitting and receiving reference signal using unlicensed band201910,178,695Communication method for preventing signal collision in peer aware communication system and apparatus for transmitting/receiving using the method201910,142,953Method and apparatus for performing synchronous HARQ operation according to variable TTI allocation201810,097,206Method and apparatus for performing encoding using block code having input/output of variable length201810,070,429Method and apparatus for transmitting information in low latency mobile communication system201810,064,110Method and apparatus for handover in wireless communication system201810,039,134Method and apparatus for random access in wireless communication system20189,955,510Method and terminal for distributed access20189,749,098'Method and apparatus for transmitting and receiving system information in mobile communication system'20179,531,467'Opportunistic downlink interference alignment'20169,525,467'Cooperation multi-input multi-output transmitting/receiving method and terminal for supporting the same'20169,504,007'Terminal, method for managing thereof, base station and method for managing thereof'20169,485,797'Method and apparatus for device-to-device direct communication'20169,480,004'Discovery method and apparatus in device-to-device direct communication'20169,408,137'Discovery signal transmitted in direct communication system, and method of transmitting/receiving the discovery signal'20169,332,482'Method for communication of base station, terminal and relay station'20169,319,127'Method of relay between devices'20169,277,518'Synchronization method and apparatus in device-to-device direct communication'20169,276,693'Apparatus and method for transmitting synchronization signal'20169,271,262'Method and apparatus for managing multicast and broadcast service resource'20169,264,175'Method and apparatus for detecting collision in wireless multi-access channel'20169,265,071'Signalling method for direct communication between terminals'20169,226,116'Method and apparatus for managing configuration information of multicast and broadcast service'20159,209,918'Method and apparatus for transmitting synchronization channel, and method and apparatus for receiving synchronization channel'20159,209,886'Terminal and communication method thereof'20159,204,479'Method of transmitting and receiving data in talk-around direct communication network'20159,198,201'Method of direct communication between terminals respectively connected and unconnected to base station'20159,191,785'Group communication method and apparatus'20159,191,941'Method and apparatus for managing resource'20159,185,679'Method of low-duty mode operation of femtocell base station'20159,179,269'Method and apparatus for transmitting synchronization signal in talk-around direct communication network'20159,173,237'Communication method of relay, terminal, and communication method of the terminal'20159,154,922'Multicast management method and apparatus'20159,137,777'Base station, mobile station, paging message transmitting method, and paging message receiving method'20159,113,482'Method and apparatus for transmitting frames in talk-around direct communication'20159,066,254'Mobile station, base station, and relay station for a wireless access system'20159,042,242'Identifying method and protocol data unit generating apparatus'20159,042,346'Mobile relay station and handover method thereof'20159,036,550'Method and terminal for direct communication between terminals'20159,025,508'Method for receiving mobile multicast broadcast service in multi-carrier wireless communication system'20158,995,319'Terminal of supporting direct communication using infra communication and direct communication method of the same'20158,976,731'Base station, mobile station, paging message transmitting method, and paging message receiving method'20158,948,073'Method and apparatus for managing carrier of multicast and broadcast service'20158,937,894'Method and apparatus for allocating multicast resource and method and apparatus for receiving multicast resource allocation information'20158,934,448'Handover method in wireless portable internet system'20158,914,050'Base station, mobile station, paging message transmitting method, and paging message receiving method'20148,855,566'Apparatus for managing radio resources of base station and method for managing the same'20148,842,832'Method and apparatus for supporting security in muliticast communication'20148,830,877'Transmitting device, transmitting method, and receiving method for multicast and broadcast service'20148,825,794'Apparatus and method for transmitting and receiving multicast broadcast service'20148,824,348'Method for controlling power saving mode in group communication'20148,787,923'Device for managing of base station and method for managing thereof'20148,750,193'Apparatus and method for transmitting and receiving MBS data'20148,743,898'Apparatus and method for transmitting and receiving multicast broadcast service data'20148,738,095'Method for operation of femto base station based on radio access system'20148,730,832'Method and terminal for performing direct communication between terminals'20148,725,183'Device and method for managing base station and terminal'20148,717,914'Method for controlling interference'20148,718,660'Apparatus for measuring radio environment of base station and method for measuring the same'20148,718,679'Method for broadcasting and method for receiving location information of base station'20148,713,395'Transmitting apparatus and retransmitting method'20148,682,359'Device and method for managing base station and terminal'20148,675,600'Method for transmitting signals'20148,649,334'Radio resource reallocating method for circuit mode'20148,644,233'Method of transmitting control information and terminal thereof'20148,630,649'Terminal, method for handover thereof and supporting method for handover of base station'20148,559,360'Method and apparatus for controlling power for uplink'20138,548,468'Method for providing service of femtocell, and transmitter and receiver for the same'20138,522,103'Method and apparatus for controlling retransmission'20138,479,270'Method for allocating authorization key identifier for wireless portable internet system'20138,374,138'Femtocell base station apparatus and self-configuring method thereof'20138,369,862'Resource allocation and power control method'20138,331,940'Method and device for transmitting scanning start information of different radio access network'20128,331,321'Terminal, method for handover thereof, and supporting method for handover of base station'20128,326,304'Femtocell search method for macro to femto handover'20128,238,375'Method and apparatus for transmitting broadcasting information'20128,214,500'Method for allocating resource and receiving data to control a transmission error'20128,208,851'Apparatus and method for relaying between base station and mobile station, and method for receiving control information'20127,978,855'Method for allocating authorization key identifier for wireless portable internet system'20117,907,733'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'20117,904,070'Method and device for searching and deallocating abnormal terminal in wireless portable internet system'20117,174,166'Handover method in next generation mobile communication system'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2016Patents assigned to KOREA ELECTRONICS TELECOMM (62)· patent assignee history
2007–2020Based in Daejeon, KR· patent location history
2011–2016Patents assigned to SAMSUNG ELECTRONICS CO LTD (26)· patent assignee history
2012–2016Patents assigned to CHANG SUNG CHEOL (46)· patent assignee history
2012–2016Patents assigned to YOON CHUL SIK (46)· patent assignee history
2016–2020Patents assigned to ELECTRONICS & TELECOMMUNICATIONS RES INST (23)· patent assignee history
2016Based in Yuseong-gu, KR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOREA ELECTRONICS TELECOMM | 62 | 2007–2016 |
| CHANG SUNG CHEOLself | 46 | 2012–2016 |
| YOON CHUL SIK | 46 | 2012–2016 |
| SAMSUNG ELECTRONICS CO LTD | 26 | 2011–2016 |
| ELECTRONICS & TELECOMMUNICATIONS RES INST | 23 | 2016–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Daejeon, KR | 90 | 2007–2020 |
| Yuseong-gu, KR | 1 | 2016 |