Wireless portfolio boasts comprehensive coverage

At this year's CeBIT, Rohde and Schwarz will present an interesting product portfolio featuring numerous innovations for each and every need in wireless test and measurement.

More and more new technologies are becoming available to mobile radio users.

Today about 40 million UMTS customers take advantage of the wide range of mobile data services, but they can look forward to even higher datarates in the next two years with HSDPA/HSUPA.

From the development and production of suitable user equipment to the stable and reliable introduction of new applications to the setup of seamless network coverage, manufacturers as well as network operators require future-proof and sophisticated T and M instruments.

At this year's CeBIT, Rohde and Schwarz will present an interesting product portfolio featuring numerous innovations for each and every need - including measurement solutions for WiMAX, Bluetooth V2.0 + EDR and HSPA, new options for optimising radio cells and network coverage plus a "video goes mobile" test set.

New instruments such as the R and S AFQ100A baseband generator and the R and S SMA100A high-end signal generator will also be presented.

By providing greater range and the prospect of mobile applications, the future looks promising for WiMAX.

Manufacturers developing WiMAX applications must thoroughly analyse their RF characteristics.

Rohde and Schwarz now has in its portfolio an all-in-one measurement solution consisting of the R and S SMU200A vector signal generator and the R and S FSQ signal analyser for developing and certifying the new technology.

The instruments generate and analyse signals with a bandwidth of up to 28MHz in accordance with the IEEE802.16-2004, 802.16e and WiBro standards.

The R and S FSQ can also be combined with other signal generators of the R and S SMx family: the R and S SMATE has been specially designed for tests in production, the R and S SMJ100A for less sophisticated receiver tests.

With the new Bluetooth V2.0 + EDR standard, the data transmission rate is up to three times higher than with existing standards.

Labs and production thus need flexible, multipurpose measurement equipment that, in addition to existing tests, can also perform measurements of the relevant EDR parameters without delay.

For its R and S CBT and R and S CBT32 RF testers, Rohde and Schwarz has developed an option that makes it possible to perform transmitter and receiver measurements on Bluetooth-capable devices and modules.

The solution is the world's first successful demonstration of the loopback function, which tests receiver sensitivity during an existing Bluetooth connection under near-realistic conditions.

Rohde and Schwarz has offered a complete selection of products for HSDPA test and measurement applications since the beginning of 2005.

The company recently added a comprehensive HSUPA product portfolio with layer 1 test software for the tried-and-tested R and S CRTU-W and R and S CRTU M platforms allowing them to simulate the layer 1 behaviour of an HSUPA basestation.

It can generate complex HSUPA downlink signals at layer 1 and test their reception and processing in the layer 1 user equipment (UE) implementation under test.

For the R and S FSQ, R and S FSP and R and S FSU signal and spectrum analysers, Rohde and Schwarz has added HSUPA to the R and S FS-K72/-K73/-K74 application firmware packages.

Besides HSDPA, comprehensive functions for transmitter measurements on HSUPA basestations and modules are now available.

For the vector signal generators of the R and S SMx family, the R and S SMx-K45 software option provides an HSUPA update, enabling the R and S SMU200A, R and S SMATE200A and R and S SMJ100A to generate HSUPA signals for measurements on basestations and modules.

PoC (push to talk over cellular), the modern version of a walkie-talkie system, is a new voice communications service in mobile radio networks.

It is based on packet-switched voice transmission in GPRS, UMTS or cdma2000 networks without spatial limitation for example, and is primarily of interest for closed user groups.

The Open Mobile Alliance (OMA) standardisation committee issued the first open standard for PoC in mid-2005 and shortly thereafter the corresponding test cases.

Based on the R and S CRTU-ATE application test environment software platform, Rohde and Schwarz now also offers measurements for PoC in addition to test solutions for MMS.

For the R and S CRTU protocol tester family and the R and S CMU200 mobile radio tester, Rohde and Schwarz will present a test server that provides developers of PoC clients with a standardised reference.

Validated test cases that make it possible to certify the PoC function on mobile phones will also be made available.

To ensure smooth rollout of HSDPA in the course of this year, reliable T and M solutions for user equipment and networks will be required.

The R and S CMU300 basestation tester checks HSDPA settings at Node Bs (UMTS basestations) and performs measurements on the physical HSDPA channels.

The new R and S CMU K72 HSDPA monitoring option allows users to measure data throughput, for example.

The measurements serve as a basis for analysing and optimising algorithms for resource assignment, enabling network operators to tailor the quality of new services and the necessary network capacity to customer requirements by changing important HSDPA parameters.

In addition, Rohde and Schwarz will present a coverage measurement system for analysing WCDMA and GSM networks.

The compact solution - consisting of the R and S TSMU radio network analyser and R and S Romes software - has already been tried and tested for WCDMA network analysis.

The company currently offers three updates for setting up and optimising HSDPA networks.

The software also features an automatic neighborhood and handover analyser.

The R and S TSMU-K13 option enhances the R and S TSMU by adding a GSM network scanner for analysing reception conditions in GSM networks, allowing users to automatically locate the interference sources in the event of cochannel or adjacent-channel interference.

For a long time there were hardly any innovations in TV technology, but now the market is on the go: TV is going digital (DTV), high-definition (HDTV) and mobile (DVB-H or T-DMB).

As a result, T and M solutions for optimising transmission quality and network coverage are in demand.

The R and S TSM-DVB test system from Rohde and Schwarz makes it possible to perform mobile network coverage measurements in digital terrestrial transmission networks.

In combination with Coverage Measurement Software R and S Romes, the system can be used in a moving vehicle to test the quality of transmission signals.

The R and S TSM-DVB diversity test receiver supports all DVB-T modes including hierarchical modes across all bandwidths of 6, 7 or 8MHz.

The instrument allows users to test the RF level, modulation error rate (MER) or packet error rate (PER), for example.

The development and production of state-of-the-art reception equipment depend on baseband sources that are as flexible as possible.

The new R and S AFQ100A baseband generator is a versatile instrument that provides ideal signal quality.

Equipped with such features as a maximum clock rate of 300MHz and a deep waveform memory of up to 1Gsample, it will enable developers to test existing broadband communications systems as well as those that are in the offing.

The new R and S SMA100A analogue signal generator also exhibits outstanding signal quality, high output power and short setting times, allowing it to be used for universal applications up to 3GHz in labs, production and service.

The instrument is equipped with a wear-free electronic attenuator.

An additional clock synthesiser can be optionally integrated in the signal generator.

Last but not least, Rohde and Schwarz will present a new option for the R and S FSH3 handheld spectrum analyser.

The handy instrument now allows users to perform code domain power measurements on 3GPP basestations.

With the R and S FSH-K4 firmware option, the power of the most important code channels of a 3GPP signal can be tested quickly and easily.

For certain channels, the error vector magnitude (EVM) value can also be determined.

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