Date: 27/02/2011

Handheld LTE test gear from Rohde & Schwarz

The Rohde & Schwarz (R&S) FSH4 and FSH8 handheld analyzers from Rohde & Schwarz can allow LTE test engineers to perform modulation analysis in the LTE frequency division duplex (FDD) and time division duplex (TDD) modes. The new options provide a more detailed view of LTE signals than is possible with other manufacturers' instrument, says Rohde & Schwarz. R&S claims they are the only handheld analyzers on the market that can analyze the complete LTE frame with up to 10 subframes as called for by the standard. They are also the only ones that support extended cyclic prefix as defined in the standard, adds R & S.

The other key features include:
1. The extended cyclic code prefix reduces interference due to delay spread in large radio cells.
2. The analyzer can be used to test parallel multi-antenna signal transmissions up to 4x4 MIMO.
3. Offer a demodulation bandwidth of 20 MHz, which covers all the signals defined in the LTE standard.
4. New software options for analyzing modulation in LTE networks are available for the handheld analyzers: The R&S FSH-K50 and R&S FSH-K51 options allow modulation analysis on LTE FDD and LTE TDD base stations respectively. Both options support all key LTE measurements - from single input single output (SISO) to 4x4 multiple input multiple output (MIMO) transmissions.
5. Support both normal cyclic prefix and extended cyclic prefix.
6. Can process LTE signals with extended cyclic prefix.
7. Can demodulate LTE frames with up to 10 subframes as defined in the standard.
8. They display the power and modulation quality (EVM) of the data signal (PDSCH) and of other signal components. For the data signal, these parameters are broken down by modulation type.