Application Note: Measuring LTE Modulation Quality Over-The-Air With A Handheld Instrument
This application note presents a simpler and faster method of measuring modulation quality—making the measurement over-the-air with a handheld instrument. This method is based on the fact that control channels do not use spatial multiplexing or beamforming because they have to operate over the entire cell, including at the cell edges. Over-the-air measurements of LTE modulation quality are not intended to replace direct-connect measurements because direct-connect measurements are more accurate and comprehensive. However, over-the-air measurements are much faster and more convenient so they provide a valuable tool to help meet the challenge of delivering seamless LTE service.
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