모든 사물들을 네트워크를 통해 연결하므로 언제 어디서나 다양한 서비스를 손쉽게 이용할 수 있게 하는 M2M(Machine to Machine)/IoT(Internet of Things)가 차세대 통신을 위한 주요 이슈로 고려되고 있으며, 여러 네트워크 중 이동통신 네트워크를 기반으로 하는 M2M에 대한 관심이 고조되고 있다. UMTS (Universal Mobile Telecom. System), LTE(Long Term Evolution) 등 대표적인 이동통신 시스템을 위한 표준화 단체인 3GPP(3rd Generation Partnership Project)에서는 2005년 M2M을 위한 타당성 연구를 시작으로, 2008년부터 Machine Type Communications(MTC)를 위한 본격적인 표준화 작업이 진행되었으며, 현재 Release 10을 위한 규격 작업을 마무리하고 Release 11 및 12를 위한 표준규격을 작성하고 있다. 본고에서는 3GPP에서 진행하고 있는 MTC의 표준화 현황을 간략히 기술한다.
KSP Keywords
3rd generation partnership project(3GPP), Long Term Evolution(LTE), Machine to machine(M2M), Machine-type-communication(MTC), internet of things(IoT)
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