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RF/Microwave??

Test aims for standards flexibility combined with precision

Posted: 14 Jan 2010 ?? ?Print Version ?Bookmark and Share

Keywords:WiMAX? test? LTE? spectrum analyzer?

Dr. Erich Freund

Freund: Great flexibility must be maintained without losing the precision in the details.

In mobile radio, the trend is towards more and faster changes. For us, this means we must design our test solutions with highly specialized all-around capabilitiesgreat flexibility must be maintained without losing the precision in the details. Such flexible, multistandard solutions allow network operators as well as manufacturers of chipsets and mobile phones to respond immediately to new developments.

WiMAX will continue to play an important role with concepts such as "last-mile broadband network." This means that WiMAX can deliver fast Internet access especially in somewhat isolated areas where high-speed data service is not necessarily available. During the course of 2010, we are expecting a strong push towards LTE. This standard looks like to provide the first globally unified solution that supports higher data rates for applications such as mobile television, Internet and office work. At Expo 2010 in Shanghai, the first trial networks and mobile phones with TDD LTE will be presented. At the end of 2010, the first applications using LTE FDD are scheduled to go into commercial network operation in various metropolitan areas in Japan.

LTE is implemented on the basis of new modulation techniques (OFDM) and multiple antenna technology (MIMO). By using several transmit and receive antennas, it is possible to increase the data rate as well as the stability and quality of communications. At the same time a complex system of this kind poses new the challenges for the development of mobile stations and components. These challenges also concern the test equipment.

Considering the test equipment industry beyond mobile radio, we are seeing above all a trend towards microwave with many new applications. Since the lower frequency range is already largely used up by existing applications, higher and higher frequencies are coming into play. Take for instance, modular solutions for up to 325GHz and spectrum analyzers capable of measuring up to 67GHz in a single sweep.

Wireless HD, wireless communications (mobile radio, WLAN, satellite technology) and sensor systems are all playing a role with research and development underway around the globe. Our objective is to make it easier to manage complex tests and measurements.

- Dr. Erich Freund
Managing Director
Rohde & Schwarz Regional Headquarters Singapore Pte Ltd





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