Rohde & Schwarz has announced that its R&S SMU200A signal generator and R&S FSQ signal analyzer are the first instruments enabled with UMTS long term evolution (LTE) measurement capability. The R&S SMU200A can generate signals in both the downlink and uplink, and the R&S FSQ can fully analyze them.

LTE, scheduled to be launched in 2009, will ensure the long-term competitiveness of UMTS for broadband mobile radio applications or mobile TV. It will achieve data rates up to 100 Mbps in the downlink, and up to 50 Mbps in the uplink, equal to or greater than the capabilities of WiMAX. Like WiMAX, it employs the orthogonal frequency division multiple access (OFDMA) modulation scheme in the downlink. In the uplink, single-carrier frequency division multiple access (SC-FDMA) is used.

By using the new option SMU-K55, the SMU200A can generate LTE downlink and uplink signals, and allow the user to vary reference signals, control and synchronization channels, and define data sources. It employs a resource allocation scheme that is extremely easy to use.

To analyze transmitted LTE downlink and uplink signals, the R&S FSQ is now complemented by the FSQ-K100 (LTE downlink) and R&S FSQ-K101 (LTE uplink) software options. The options permit evaluation of modulation quality, spectrum CCDF measurements, EVM measurement versus subcarrier and symbol, and provides a constellation diagram and graphical presentation of measurement results. Both options are available, stated Rohde & Schwarz.

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