1. 28 GHz 대역/특화망대역/NU-R 대역을 지원하는 5G 산업용 단말 기술 개발. Development of 5G Industrial Terminal Technology Supporting 28GHz Band/Private 5G band/NR-U Band. Apr. 2022-Dec. 2025: 과학기술정보통신부, 정보통신기획평가원(IITP), 스마트제조혁신기술개발사업

2. [PI] 5G/6G를 위한 인공지능 기반 지능형 반사표면 위상 양자화 및 최적화. AI-Based Quantization and Optimization of Intelligent-Reflecting-Surface Phases for 5G/6G Systems. Mar. 2022-Feb. 2025: 과학기술정보통신부, 한국연구재단(NRF) 중견연구자지원사업

3. Development of Next Generation Wireless Access Technology Based on Space-Time Line Code. Apr. 2021-Dec. 2025: 과학기술정보통신부, 정보통신기획평가원(IITP), 정보통신방송기술개발사업

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4. 차세대 무인이동체 무선통신 연구실(2단계). Wireless Communications Lab for Next Generation Unmanned Autonomous Vehicles (UAVs). Mar. 2021-Feb. 2024: 과학기술정보통신부, 한국연구재단(NRF), 기초연구실사업

5. 초소형 무인기 웨이브폼 기술연구(2단계). Mar. 2021-Nov. 2023, 국방과학연구소 (ADD), 국방특화연구실사업

6. [PI]  기계학습기반 초저복잡도 B5G 사물인터넷 시스템 원천기술 개발. Machine Learning Based Core Technology Development for Ultra-Low-Complexity B5G-IoT Systems. Sep. 2019-Feb. 2022: 과학기술정보통신부, 한국연구재단(NRF) 중견연구자지원사업

7. 차세대 무인이동체 무선통신 연구실(1단계). Wireless Communications Lab for Next Generation Unmanned Autonomous Vehicles (UAVs). Jun. 2018-Feb. 2021: 한국연구재단(NRF), 기초연구실사업

8. [PI]  기계학습 및 데이터 분석을 통한 무선 통신 시스템 물리계층 설계. Machine Learning and Data Analytics based Physical Layer Design in Wireless Communication Systems. Nov. 2016-Oct. 2019 (3yrs): 한국연구재단(NRF), 기초연구사업

9. [PI]  시공간 선 부호를 사용한 간단한 무선 수신기 연구. Low-capability Receiver Design for Space-Time Line Code System. Jun. 2018-Jun. 2019: CAU 우수신진연구지원사업

10. [PI]  밀리미터 웨이브 다중송수신 안테나 시스템 성능분석 및 성능향상 기법. Performance Analysis and Optimization for mm-Wave MIMO Systems. Mar. 2019-Feb. 2020: CAU 해외공동연구

11. 초소형 무인기 웨이브폼 기술연구(1단계). Dec. 2017-Nov. 2019, 국방특화연구실사업, 국방과학연구소 (ADD)

12. 초고속 무선 네트워크 기반 u-Office 서비스 연구 개발. Jan. 2017-Dec. 2017: 정보통신기술진흥센터

13. [PI]  채널 상관성 모델과 이를 이용한 massive MIMO 채널 피드백. Channel Correlation Modeling and Its Application to Massive MIMO Channel Feedback Reduction. Mar. 2016-Feb. 2018 (2yrs): CAU 신진연구지원사업

14. Unified All-Digital HetNet System. May 2015-Feb. 2016: I2R, A*STAR, Singapore

15. Feasibility Study on Smart Seamless HetNet. Jul. 2014-Mar. 2015: I2R, A*STAR, Singapore 

16. Green Multiuser MIMO Cooperative Communications (G-MC2). Jun. 2011-Dec. 2014: I2R, A*STAR, Singapore 

17. Feasibility Study - 11ac-based DAS Architecture (DAS). Apr. 2014-Dec. 2014: I2R, A*STAR, Singapore 

18. Feasibility Study of Large MIMO (Large-MIMO). Mar. 2013-Sep. 2013: I2R, A*STAR, Singapore 

19. Opportunistic Wireless Network Coding for Multiuser MIMO Communications (OWNCoMM). Oct. 2009-Apr. 2011: I2R, A*STAR, Singapore 

20. [PI]  A Study on Multiple-Input Multiple-Output (MIMO) Techniques and Its Application to Design Various Relay Systems in Cellular  Environment. Oct. 2008-Sep. 2009: National Research Foundation (NRF) of Korea, previously Korea Research Foundation (KRF), USA 

21. Studying AD9352 Chip for WiBro/WiMAX Relay Systems in Femto-Cell Applications. Feb. 2008-Aug. 2008: Lumicomm Co., Korea 

22. Interference Canceling Algorithm for WCDMA Relay Station. Sep. 2007-Aug. 2008: Lumicomm Co., Korea 

23. Development of WiBro RF Monitoring System with Lumicomm Co. and Research for Indoor WiBro System. Mar. 2007-Aug. 2007: Korea Telecom (KT), Ministryof Knowledge and Economy, previously Ministry of Information and Communication (MIC) of Korea, Korea 

24. Speed/Channel/Media Adaptive Multi-Hop FDD/TDD MIMO Cellular System. Nov. 2005-Feb. 2007: Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Company (SEC), 3rd-term, Korea 

25. Evaluation and Development of Principal Techniques for FH-OFDMA TDD Based Wireless Access. Nov. 2004-Oct. 2005: 2nd-term, SAIT, Korea 

26. Research for Performance Enhancement of FH-OFDMA Systems with Synchronize Techniques. Sep. 2003-Sep. 2004: 1st-term, SAIT, Korea 

27. S-band Portable Terminal Development for Satellite Communications. Apr. 2003-Dec. 2003: Japan Aerospace Exploration Agency (JAXA), previously National Space Development Agency of Japan (NASDA), and PSKEY Co. in Korea, Korea 

28. Design of MIMO-OFDM for High Throughput (HT) WLAN. Mar. 2003-Nov. 2003: Electronics and Telecommunications Research Institute (ETRI), Korea

1. [F]  하향 링크 사용자 전송률 조절 방법 및 그 장치. 출원번호 10-2024-0032529, Mar. 07, 2024 [IITP-STLC 70%]

2. [F] 시공간 부호화 기반 대규모 다중 안테나 중계 시스템 및 방법. 출원번호 10-2024-0022583, Feb. 16, 2024 [IITP-STLCs 50%, NRF-중견 50%]

3. [F] 차동 시공간 선 부호화 시스템 및 방법. 출원번호 10-2024-0004189, Jan. 10, 2024 [IITP-STLCs 50%, NRF-중견 50%]

4. [F] 채널 모델을 이용하는 GRU 기반의 삼차원 공간 위치 추정 방법 및 장치. 출원번호 10-2023-0089052, Jul. 10, 2023 [ NRF-중견 40%, IITP-STLC 30%, NRF-BRL 30%]

5. [F]  MBCD 알고리즘을 이용한 지능형 반사 표면 위상 제어 장치 및 방법, 출원번호 10-2022-0114006, Sep. 08, 2022

6. [F] 다중 시공간 선 부호화 전송을 위한 저 복잡도 사전부호화 시스템, 출원번호 10-2022-0137737, Oct. 24, 2022

7. [G34] All-digital software-defined cognitive heterogeneous network transceiver architecture, US patent no. US 11,057,879 B2, Jul. 6, 2021

8. [G33] Space-time line coding method and system US patent no. US11,025,370 B2, Jun. 1, 2021

9. [G32] 다중 시공간 선 부호화 및 복호화를 이용한 데이터 송수신 방법 및 시스템 KR patent no. 10-2467175, Nov. 10, 2022, 출원번호 10-2022-0184974, Dec. 28, 2020

10. [G31] 중계기 전력을 제어하기 위한 방법, 컴퓨터 판독 가능한 기록 매체, 컴퓨터 프로그램 및 장치  KR patent, no. 10-2311301, Oct. 05, 2021, 출원번호 10-2020-0060322, May 20, 2020

11. [G30] 무선 전력 충전정보 전송 방법 및 그 방법을 수행하는 공유기  KR patent, no. 10-2193882, Dec. 16, 2020 , 출원번호 10-2019-0029781, Mar. 15, 2019

12. [G29] 다중 중계 노드 환경에서 분산 시공간 선 부호를 사용한 협업통신 시스템 (Cooperative communication system with distributed space-time line codes for multi-relay node environments) KR patent, no. 10-2184982, Nov. 25, 2020, 출원번호 10-2018-0099079, Aug. 24, 2018

13. [G28] 기계학습 기반 시공간 선 부보화를 위한 블라인드 복호 방법 및 그 장치 KR patent, no. 10-2119965, Jun. 1, 2020, 출원번호 10-2018-0129987, Oct. 29, 2018

14. [G27] Radio communication method and radio communication devices, US patent, no  US patent, no. US10,470,179 B2, Nov. 5, 2019 

15. [G26] 위상 조향 기반 시공간 선 부호화를 이용한 비직교 다중 접속 통신 방법 및 그 시스템  KR patent, no. 10-2094428, Mar. 23, 2020, 출원번호 10-2018-0173548, Dec. 31, 2018

16. [G25] 양방향 중계 시스템의 통신 방법 및 그 시스템  KR patent, no. 10-2089664, Mar. 10, 2020, 출원번호 10-2018-0150893, Nov. 29, 2018

17. [G24] 다중 사용자 시스템에서 시공간 선형 부호화 방법 및 그 시스템,  KR patent, no. 10-2089073, Mar. 9, 2020, 출원번호 10-2018-0136102, Nov. 07, 2018

18. [G23] 시공간 부호화를 이용한 다중 안테나 통신 시스템, KR patent, no. 10-2002497, Jul. 16, 2019, 출원번호 10-2017-0175465, Dec. 19, 2017

19. [G22] 시공간 선형 부호화 방법 및 시스템, KR patent, no. 10-1975416, Apr. 29, 2019, 출원번호 10-2017-0111388, Aug. 31, 2017

20. [F] Context-aware Handover Methods Singapore, application no. 10201501312X, Mar. 13, 2015

21. [G21] Apparatus and method for subcarrier allocation in broadband wireless communication system KR patent, no. 10-1360394, Feb. 3, 2014

22. [G20] A method of communication: Two-path relay systems based on DSTTD with phase rotation and link selection Singapore patent, no. 182719, Aug. 15, 2013

23. [G19] Apparatus and method for canceling interference in wireless communication system  US patent, no. US8351531 B2, Jan. 8, 2013 

24. [G18] Method and system for transmitting/receiving data in a communication system  US patent, no. US8243840 B2, Aug. 14, 2012

25. [F] Power amplifier switching technique for energy efficient transmission  Singapore, application no.201203471-6, May 28, 2012

26. [F] Fractional time reuse (FTR) for energy saving of wireless networks:Non-Transmitting adaptive protocol (NAP) Singapore, application no.201203478-1, May 22, 2012 

27. [G17] Echo cancellation and echo channel estimation system using multiple antennas  US patent, no. US8184737 B2, May 22, 2012

28. [G16] Apparatus and method for transmitting and receiving signal in a multiple input multiple output mobile communication system  US patent, no. US8027396 B2, Sep. 27, 2011 

29. [G15] Apparatus and method for performing sequential scheduling in multiple-input multiple-output system  US patent, no. US8014360 B2, Sep. 6, 2011

30. [F] Method of communication US patent, application no. 13/575,920, Jan. 17, 2011

31. [G14] Apparatus and method for transmitting/receiving a signal in a multiple input multiple output mobile communication system KR patent, no. 10-1009814, Jan. 13, 2011

32. [G13] Method for decoding received signal in wireless network system KR patent, no. 10-1001662, Dec. 9, 2010

33. [G12] Apparatus and method for implementing SDMA in multi-user multi-antenna system US patent, no. US7830840 B2, Nov. 9, 2010

34. [G11] Apparatus and method for canceling interference in wireless communication terminal KR patent, no. 10-0979132, Aug. 25, 2010

35. [G10] Method for reporting average signal-to-noise ratio, and method for resource allocation and cooperation based on the average signal-to-noise ratio KR patent, no. 10-0970447, Jul 8, 2010 

36. [G9] Apparatus and method for performing sequential scheduling in multiple-input multiple-output system KR patent, no. 10-0961889, May 31, 2010 

37. [G8] Pilot emitting relay and channel estimation method using the same KR patent, no. 10-0948940, Mar. 15, 2010

38. [G7] Apparatus and Method for feedbacking antenna shuffling information in a multiple-input multiple-output system using a multiple space time block coding technique KR patent, no. 10-0943610, Feb. 12, 2010

39. [G6] System of echo cancellation and echo channel estimation using the multiple antennas KR patent, no. 10-0941491, Feb. 2, 2010

40. [G5] Apparatus and method for acquiring synchronization in mobile communication system using OFDM scheme US patent, no. US7630463 B2, Dec. 8, 2009

41. [G4] Apparatus and method for adaptive rank and user selection in MIMO system KR patent, no. 10-0929853, Nov. 26, 2009

42. [G3] Method and system for transmitting/receiving data in a communication system KR patent, no. 10-0922936, Oct. 14, 2009

43. [G2] Method for feeding back of antenna shuffling information in a multiple-input multiple-output system using a multiple space-time block coding technique US patent, no. US7508891 B2, Mar. 24, 2009

44. [P3] Base station cooperation method in communication system and system for the same US patent, publication no. US2008/0132262 A1, Jun. 5, 2008 (abandoned)

45. [G1] Apparatus and method for acquiring synchronization in a mobile communication system using an orthogonal frequency division multiplexing scheme KR patent, no. 10-0630196, Sep. 22, 2006

46. [P2] Method for transmitting a signal using a precise adaptive modulation and coding scheme in a frequency hopping-orthogonal frequency division multiple access communication system US patent, publication no. US2006/0018365 A1, Jan. 26, 2006 (adandoned)

47. [P1] Feeding back antenna shuffling information in a multiple-input multiple-output system using a multiple space-time block coding technique and a method therefore EU. patent, publication no. EP 1 619 089 A2, Jan. 25, 2006

Enhancement of Rate 2 STC with Antenna Grouping, IEEE802.16 Task Group-e, Mobile Wireless MAN, 2004

1. Echo Cancellation and Echo Channel Estimation System Using Multiple Antennas, to Lumicomm Co, Korea, 2010

2. (P- 03233) 다중안테나를 이용한 반향신호 제거 및 에코채널 추정시스템, 주식회사 스카이랩스, 2018