Question: If a 14 mbps LTE data rate on the downlink is desired, what would the minimum bandwidth be and why, if QPSK modulation is being

If a 14 mbps LTE data rate on the downlink is desired, what would the minimum bandwidth be and why, if QPSK modulation is being used and the entire bandwidth is able to be allocated to a single user if needed? Recall the LTE has 1.4, 3, 5, 10, 15, and 20 MHz BW capabilities.

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