• Title, Summary, Keyword: ITU-R M.1390

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Spectrum Requirement Estimation for IMT Operation (IMT 운용을 위한 주파수 소요량 산출)

  • Han, Tae-Young;Kim, Nam;Yang, Jae-Soo;Choi, Jung-Hun;Kim, Cheol-Ho
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.19 no.2
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    • pp.161-167
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    • 2008
  • This paper describes the overview of spectrum requirement estimation recommended in ITU-R Rec. M.1390 and [IMT.METH] and its difference for the IMT mobile service, and a (IMT.METH) methodology is applied to the spectrum estimation of the recent IMT service. The traffic model and traffic calculation algorithm is briefly described for the carried traffic which is determined in terms of the offered traffic, system rapacity, and the criteria of quality of service. And the spectrum requirement demand which is required from year 2010 to year 2015 is calculated as an example for the IMT service which is recently operated and deployed in the current Korean market after obtaining the reasonable market data and the ITU market prediction data.

Bandwidth Requirement Estimation Method for Future Wireless Railway Communication Systems (차세대 철도통합무선망을 위한 주파수 소요량 계산방법)

  • Jeong, Minwoo;Yoon, Hyungoo;Park, Duk-Kyu;Kim, Kyung-Hee;Lee, Sukjin
    • Journal of the Korean Society for Railway
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    • v.16 no.6
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    • pp.540-550
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    • 2013
  • The Future Wireless Railway Communication System(FWRCS) has attracted attention for the various advantages of such a system like efficient management, precise periodicity of operation and speedy travel. Related to it, the area of bandwidth requirement estimation for the FWRCS is being researched actively because there is a great need for accurate bandwidth distribution. In this paper, sophisticated bandwidth requirement estimation method for FWRCS is proposed by modifying ITU-R M.1390. With this method, the expected frequency requirements for the present, for five years from now, and for 10 years from now can be calculated by applying the data gathered from the actual field.

Estimation of Spectrum Requirements for Korean Wireless Communication of Public Protection and Disaster Relief (국내 공공안전재난구조 무선통신을 위한 주파수 소요량 산출)

  • Lee, Soon-Hwa;Yoon, Jae-Sun;Kim, Chang-Bock;Lim, Seung-Gag
    • The Journal of The Institute of Internet, Broadcasting and Communication
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    • v.11 no.4
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    • pp.209-216
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    • 2011
  • For Effective and systematic response to disasters, needs of broadband multimedia services in wireless communication of PPDR(public protection and disaster relief) is increasing gradually. Recently in Korea, by the digital television transition, Korea Communications Commission is considering whether the freed spectrum can assign additional spectrum of PPDR or not. In this paper, we were defined the input parameters, were estimated the spectrum of requirements for Korean wireless communication of PPDR based on M.1390 methodology recommended by ITU-R.

A Case Study on Performance Evaluation of R5 MSC in WCDMA System (WCDMA R5 MSC 시스템 성능 평가 사례 연구)

  • Kim, Dae-Geun;Kim, Hyoung-Taek;Ahn, Gil-Whan
    • 한국정보통신설비학회:학술대회논문집
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    • pp.264-268
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    • 2007
  • This article presents the performance evaluation case study of circuit-switched WCDMA R5MSC(Mobile Switching Center) Server and CS-MGW(Circuit Switched Media Gateway) in 3'rd generation mobile telecommunication (UMTS : Universal Mobile Telecommunication System). The presented work adopted circuit switching scenarios recommended by 3GPP(Third Generation Partnership Project) and terrestrial spectrum calculation parameters and its values defined in ITU-R M.2023 and M.1390 to do the case study on performance evaluation of circuit switched system (R5 MSC Server and CS-MGW) in WCDMA core network. This paper describes test results by using simulator which substitutes for wireless section (MS, Node-B, RNC).

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