Diverse well describes the myriad digital modulation schemes used in modern voice and data communications. The alphabet soup of terminology extends well beyond the familiar QAM and GMSK fundamentals ...
In Part I of “Testing on the EDGE” in the February issue of EE, we looked at some of the basics of GPRS and EDGE technologies. Part II focuses on what is needed to test a GPRS or EDGE mobile radio.
Beginning from an existing GSM circuit-switched voice base system network, there are two hardware upgrades in the base system for GPRS and EDGE. The first is a modification of the air (or Um) ...
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