Part 1 of this article in number 192 discussed SISO, SIMO and MISO systems (see box below) and how they are used in GSM, WCDMA and WiMAX. The tests defined as part of the certification process were also discussed along with how they can be implemented using instruments from Rohde & Schwarz. Part 2 will cover MIMO systems, i. e. the variants used in the different standards, the relevant test scenarios and their implementation.
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