A Secret Weapon For 4G LTE compatibility
A Secret Weapon For 4G LTE compatibility
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- Consists of an accompanying CD-ROM showcasing a static radio network simulator applied in MATLAB Authoritative and instructive, this textual content will likely have immediate attract wireless operators and network and terminal manufacturers.
Evolution Data Only (EVDO) technological know-how has different use cases, largely as a result of its power to supply significant-velocity data transmission over cellular networks. A lot of the notable use circumstances for EVDO provided:
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The signaling information fragments are pieced collectively in the LAC, the place total signaling messages are passed on to Layer three.
多址接入 ：不同的用户使用不同的扩频码，可以在同一频率上同时进行通信，实现了多个用户在同一频段上的同时接入。
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FDMA is used for voice and data transmission. In the course of this method the general channel bandwidth is shared by multiple people, consequently a variety of end users can transmit their data at the same time. N
The mobile acquiring a variable-rate targeted visitors body isn't going to know the rate at which the frame was transmitted. Typically, the frame is decoded at each possible rate, and applying the quality metrics from the Viterbi decoder, the proper result is selected.
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Channel Assignment and Handoff: Any time a mobile device initiates a data session, the cellular network assigns a particular channel for data transmission.
Level one describes the gathering of data and also the manipulation of Actual physical processes. It refers to sensors, good devices, valves together with other devices that feeling or affect generation.
Spread Spectrum and CDMA: EVDO employs spread spectrum techniques, which means it spreads the data get more info signal over a wide range of frequencies.
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