2세대 이동통신: Revision history

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28 December 2019

15 August 2019

  • curprev 01:1701:17, 15 August 2019223.62.175.196 talk 987 bytes +987 새 문서: ;2G, 2nd generation mobile communication; Second Generation Mobile Communication == 등장 배경 == * 1990년대에 접어들면서 세계적으로 이동전화 수요 급증 * FDMA...