Two new software options from Rohde & Schwarz make the R&S SMU200A, R&S SMATE200A and R&S SMJ100A signal generators fit for time division synchronised code division multiple access (TD-SCDMA). Primarily China, Korea and chip manufacturers in the USA rely on this standard, which uses a chip rate of 1.28 Mchip/s and a bandwidth of 1.6MHz. Together the two new options make it possible to generate test signals in realtime for the 3GPP TDD LCR (low chip rate mode) version specified in accordance with 3GPP for transport and physical layers. 3GPP standard-compliant tests can thus be performed on modules, power amplifiers, digital baseband receiver chips as well as on RF receivers for mobile phones and base stations.

The R&S SMx-K50 uses the integrated arbitrary waveform generator to simulate up to four TD-SCDMA cells in the uplink and the downlink. The switching point for the uplink and downlink can be flexibly set. In the physical layer, the user can generate all channels defined in the standard. In addition, the slot format, spreading factor, spread code and useful data can be specified for each code channel. In combination with the R&S SMx-K51 option, the functionality is expanded: Users can thus generate PCCPCH and some DPCH signals in realtime. The signal generators also offer channel coding for all reference measurement channels (RMC, 12.2kbits/s to 2048kbits/s) defined in the standard and for the BCH. Furthermore, HSDPA channels can be simulated and the channels for HSDPA RMCs (H-RMC 526kbits/s and 730kbits/s) can be coded.
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