Techniques and Measuring Requirements for EDGE Testing
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The application of EDGE (enhanced data rates for GSM evolution) technology is gaining significant momentum for new wireless data networks. EDGE promises to allow service providers to deliver theoretical data rates up to 384 kilobits/sec, enabling true third-generation wireless (3G) services such as multimedia and other broadband applications to be offered to mobile customers. EDGE offers important benefits to service providers, including more productive use of the RF spectrum and relatively low upgrade costs for existing systems.
Essentially, EDGE technology is an upgrade to the GSM (global system for mobile communications) standard, providing higher data rates in the same frequency spectrum by using higher-density modulation. The EDGE signal format, which has been adopted as the basis of IS-136HS (interim standard 136), is spectrum-and time-slot compatible with GSM. In other words, both EDGE and GSM signals can be transmitted using the same carrier frequency simultaneously, occupying different timeslots.