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A Private Shared Wireless Network is a wide area wireless radio telecommunications network developed and provided by MetroConnect〔(【引用サイトリンク】url=http://metroconnectwireless.com/benefits/pswn )〕 specifically for the use of public safety, utilities, machine to machine, and business communications. Its broad area coverage allows for a greater signal range and a lower cost of implementation. Public Safety agencies and businesses utilize a Private Shared Wireless Network to send and receive data, communicate, and receive diagnostics information on their fixed equipment, vehicles and/or employees. A "Private Shared Wireless Network" is built to operate on frequencies that are separate from those of public cellular communications networks and other publicly accessible wireless cellular or radio networks so to avoid their associated network congestion and security vulnerabilities. ==Background== Since 9/11, when data interoperability between first responders radio communications and interference issues with public networks led to loss of life, the US federal government has expressed a need for an interoperable communications networks for first responders. They hope to attain this through public/private partnerships. One of the U.S. government's attempts at creating a Private Shared Wireless Network occurred in 2008, with FCC Spectrum Auction 73. The radio spectrum being sold was divided into 5 blocks, A, B, C, D and E. It was the D block that held special conditions placed upon the winner; mainly that whoever purchased this spectrum would be required to build out a next generation network that will also support public safety broadband services. The only bid on this block of spectrum did not meet the minimum reserve price, and thus the shared network was never realized. As a result, many telecommunications equipment providers have begun building their very own private shared networks,〔(【引用サイトリンク】url=http://www.navigantresearch.com/research/private-wireless-utility-field-area-networks )〕 (xvi) and selling various services and applications to businesses,〔(【引用サイトリンク】url=http://business.verizonwireless.com/content/dam/b2b/resources/Private_Ntwk_White_Paper.pdf )〕 such as AVL/GPS, asset tracking via RFID & barcode scanning, and 2-way messaging. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Private Shared Wireless Network」の詳細全文を読む スポンサード リンク
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