Anritsu Rolls Out Signal Software Applications

Anritsu Corporation has rolled out three software applications, strengthening the functions of the company's MG3700A vector signal generator and MS269xA signal analyser series. The new software packages are the MX370110A LTE TDD IQproducer for generating waveforms used by the MG3700A vector signal generator, the MX269910A waveform generation software and the MX269022A downlink measurement software used by the MS269xA signal analyser series. Aimed at the Chinese market for next-generation 3GPP LTE TDD mobile communications systems, the MX370110A supports the evaluation of the Rx characteristics of 3GPP LTE TDD base stations, mobile terminals and chipsets using the MG3700A.

MX269910A and MX269022A applications are designed to evaluate 3GPP LTE TDD Tx/Rx characteristics using a single MS269xA signal analyser. The Chinese government approved the start of 3G mobile-phone services in January 2009 and the construction of 3G networks is said to be progressing rapidly. A number of manufacturers are already launching research and development into next-generation 3GPP LTE TDD systems. Anritsu is extending the powerful functions of its MG3700A and MS269xA series to offer solutions for supporting the rollout of fast, large-capacity 3GPP LTE TDD mobile networks in this market.

The MG3700A outputs digital modulation signals supporting the majority of the world's mobile systems, according to the company. The built-in baseband generator with a sampling rate of 160MHz outputs a digital modulation signal for almost all communications technologies simply by selecting a waveform pattern file. In addition, the two built-in waveform memories allow one unit to output two signal combinations, such as wanted signal and interference signal/additive white Gaussian noise (AWGN). In other words, one MG3700A performs tests of Rx characteristics that previously required two costly signal generators. The MX370110A software package is used to generate 3GPP LTE TDD waveform patterns on a PC.

Any waveform pattern can be quickly generated with the graphical user interface. The generated waveform pattern is output by the MG3700A to evaluate the Rx characteristics of base stations, mobile terminals and chipsets. Additionally, using the MG3700A two-signal addition function enables one MG3700A unit to perform tests that previously required two signal generators. The MS2690A series combines a wide-dynamic-range spectrum analyser function with a display average noise level (DANL) of just -155dBm and a tertiary intermodulation distortion of +22dBm. The MS2690 also provides a vector signal analyser function supporting 31.25MHz (expandable to 125MHz as an option) FFT analysis plus a digitise function for saving in-band signals in a fixed time interval without signal leaks.

It is a suitable measurement solution for monitoring hopping signals and transient noise that cannot be captured by conventional sweep-type spectrum analysers. Installing the optional vector signal generator supports the cost-effective evaluation of Tx/Rx characteristics with a single MS269xA unit. The MX269910A LTE TDD IQproducer software package offers the same functions as the MX370110A to output created waveform patterns for evaluating Rx characteristics from the MS269xA with an installed MX269xA-020 option. In addition, installing the jointly developed MX269022A in the MS269xA supports the evaluation of 3GPP LTE TDD downlink Tx characteristics.

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