HTML5 Webook

10/182

2.2Creation of mobile communications businesses and the providers thereofIn this paper, the term “microcell mobile operator” indicates not only telecommunications operators, but also individuals and those who simply manage facilities. For example, if a railway operator or an organization managing a stadium wanted to oer broadband communications to passengers or spectators, it could deploy its own microcell in the station or stadium. Other possibilities include the installation of microcell base stations by a company on its premises or the installation of a microcell in an ordinary home aer purchasing a base station at an electronics re-tailer.Taking advantage of the fact that they can deploy cells in a exible way, microcell mobile operators could play a complementary role in areas where it is dicult for cel-lular mobile operators to deploy cells. In particular, in terms of performance requirements other than broadband, namely low latency, highly reliable massive machine type communication, microcell mobile operators could proac-tively deploy cells with the necessity capabilities in places where cellular mobile operators have delayed deploying cells on the grounds of unprotability.A new system for allocating new frequencies to mobile communications systems — whether based on registration within a specic frequency band or without the need for registration — could be introduced, rather than simply issuing licenses to specic mobile operators. is would make it easy for microcell mobile operators to install base stations, thereby encouraging the autonomous deployment of microcells and an expansion in wireless communications infrastructure.us, cellular mobile operators could virtually incorpo-rate cells deployed by microcell mobile operators to increase device connection areas and improve communication performance. At the same time, this would mean microcell mobile operators shouldering the burden of deploying communication areas with the necessary capabilities. Consequently, the concept of microcell mobile operators described in this article is not based on the idea of en-croaching on the existing businesses of cellular mobile operators; rather, it focuses on the creation of new busi-nesses that make daily life more convenient, while creating a win-win situation for both parties. If this concept of frequency use gains traction, frequencies will transition from being allocated to mobile operators to being shared, facilitating more eective use of radio wave resources, which can ultimately be expected to result in the expansion of business elds.FiF2　Introduction of microcell mobile operators in private areasCellular Mobile Operator BSubscribers of Operator B can connectSubscribers of Operator A can connectMicrocell Mobile OperatoInternetSubscribers of the partner cellular mobile operator can connectPublic Area(Areas where conventional cellular communications are deployed)Installed by the cellular mobile operatorPrivate Area(Area in which the decision to install the cell was made by the owner/manager of the facility, etc.)Installed by the facility manager / service providerControl Device(Cellular Mobile Operator A)Control Device(Cellular Mobile Operator B)Minimum necessary interface for providing operational information (location, frequency, etc.) about microcells deployed in the managed areaCompanies, train stations, factories, underground shopping malls, universities, commercial facilities, homes, etcUses the macrocellcontrol plane to inform the device of operational information (location, frequency, capabilities, etc.) about microcellsCellular Mobile Operator A2 Terrestrial Communication Technology Research and Development6　　　Journal of the National Institute of Information and Communications Technology Vol. 64 No. 2 (2017)