한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
권호 표지
DOI QR코드

DOI QR Code

유효등방복사전력(EIRP)을 활용한 5G 주파수 대역 총복사전력(TRP) 측정시간의 단축방안 검증

Verification on the Reduction Technique of Measurement Time of Total Radiated Power (TRP) by Using Effective Isotropic Radiated Power (EIRP) in 5G Frequency Band

  • 김동우 (조선대학교 전자공학과) ;
  • 오순수 (조선대학교 전자공학과)
  • 투고 : 2020.08.31
  • 심사 : 2020.10.15
  • 발행 : 2020.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문은 수십시간이 소요되는 총복사전력(TRP) 측정 시간을 단축하는 방안을 컴퓨터 모의실험과 실제 실험을 통하여 검증한 결과를 제시하고 있다. 5G의 고주파수 대역에서는 무선통신기기의 정확한 성능평가를 위하여 TRP 측정이 기본적으로 수행되지만 촘촘한 샘플링 간격 때문으로 인하여, 긴 측정 시간이 소요되는 문제점을 가지고 있다. 더구나 다양한 빔 형성 시나리오를 갖는 경우 전체 측정 시간은 기하급수적으로 증가한다. 따라서, TRP 측정 시간 단축 방안이 필요하며, 그 일환으로 본 논문에서는 유효등방복사전력(EIRP)과 TRP 관계식을 이용하여 측정시간을 단축하는 방법을 다루었다. 먼저 TRP와 EIRP의 관계식을 관찰하고, 피시험용 안테나의 설계 및 제작하였으며 모의실험 결과와 측정결과를 통한 오차를 분석하였다. 그 결과 EIRP를 통하여 TRP를 산출한 결과는 매우 작은 오차를 가짐을 확인하였다. 본 방법은 향후 5G 무선통신기기의 TRP 도출에 적용할 수 있을 것으로 예상한다.

In this paper, we described the verification results on method by using the computer simulation and practical experiment for reduction of total radiated power (TRP) measurement time consuming tens of hours. TRP measurements are used in the 5G band in order to exactly evaluate the wireless communication equipment, but it takes a long measurement time because of dense sampling interval. Moreover, if there are various beam forming scenarios, the total measurement time increases exponentially. Therefore, the world-wide research on reduction method of the TRP measurement time is intensively on going. The verified method in this paper is to calculate the TRP through effective isotropical radiated power (EIRP). At first, the relation of TRP and EIRP was investigated, and an antenna for testing was designed and constructed. And, the amount of error was analyzed through simulation and measurement. The analysed results showed that the derived TRP through EIRP has very small error. This method could be applied for TRP measurements of 5G wireless communication equipments.

키워드

참고문헌

  1. K. Gwon, D. Park, W. Lee, S. Park, S. Kim, and D. Lee, "5G Ecosystem White Paper, Korea," 5G Forum, 2018.
  2. FCC Office of Engineering and Technology Laboratory Division, "Basic certification requirements and measurement procedures for upper microwave flexible use servise devices," 842590 D01 Upper Microwave Flexible Use Service v01, Feb. 2019.
  3. ETSI TR 137 907 v15.0.0, "Universal mobile telecommunications system (UMTS); LTE; Measurements of User Equipment (UE); radio performances for LTE/UMTS terminals; Total radiated power (TRP) and total radiated sensitivity (TRS) test methodology," The European Telecommunications Standards Institute, July 2018.
  4. 3GPP TR 38.817-02 v15.4.0(2019-06), "3rd generation partnership project; Technical specification group radio access network; NR; General aspects for base station (BS) radio frequency (RF) for NR," 3rd Generation Partnership Project, June 2019.
  5. J. Lim, H. Song, and Y. Seo, "Basis Establishment for Radio Usage of 5G Commercialization," Radio Research Agency, 2018.
  6. KS X 3271:2019 5G NR (New Radio), "Test Methodology of Radiation Test for Wireless Communication Equipment," Korea Communications Standards Commission, 2019.
  7. 3GPP TSG RAN WG4, "OTA test metrics and testability for 5G mmW UE," 3rd Generation Partnership Project, 2017.
  8. C. A. Balanis, Antenna Theory, Analysis and Design, New York: John Wiley & Sons, 2005.
  9. W. Stutzman and G. Thiele, Antenna Theory and Design, New York: John Wiley & Sons, 2012.
  10. O. Kim, G. Kim, and S. Rhee, "Wideband Slot-Coupled Microstrip Antenna with The Reflector," J. of the Korea Institute of Electronic Communication Sciences, vol. 14, no. 6, 2019, pp. 1045-1051. https://doi.org/10.13067/JKIECS.2019.14.6.1045
  11. G. Kim, O. Kim, and S. Rhee, "Design of L-shaped Dual Inset Feeding Microstrip Stacked Patch Antenna," J. of the Korea Institute of Electronic Communication Sciences, vol. 14, no. 3, 2019, pp. 461-466. https://doi.org/10.13067/JKIECS.2019.14.3.461
  12. J. Yoon, "Design and Implementation of Triple-band WLAN Antenna with Microstrip Lines," J. of the Korea Institute of Electronic Communication Sciences, vol. 14, no. 1, 2019, pp. 33-40. https://doi.org/10.13067/JKIECS.2019.14.1.33