Cẩm nang dữ liệu không dây P3

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Cẩm nang dữ liệu không dây P3

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KEY PUBLIC NETWORK CHARACTERISTICS The variety of public network choices cited in the preceding chapter lead some potential users to despair at what seems a plethora of alternatives. Actually, specific user requirements can quickly eliminate many network candidates. This permits a more straightforward assessment of realistic alternatives. A few of those salient user characteristics are discussed here. 3.1 COVERAGE While the scale is continuous, ranging from international down to a single truck depot, the user coverage requirements discussed in this book fall into three broad categories: 1. Nationwide. 2. Regional: Examples of this might include the field sales company that works a...

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