Home arrow more... arrow Jan - Mar 2009 arrow Optimising the Interoperation of UMTS and GSM at 900 MHz
Optimising the Interoperation of UMTS and GSM at 900 MHz

A whitepaper on 900 MHz spectrum refarming published by ISCO International concludes that the deployment of UMTS at 900 MHz will significantly reduce 3G network expansion costs while maintaining 2G network assets. ISCO International has developed the Proteus solution, which is the new refarming technology designed to drive efficient spectrum utilization.

Wireless operators can recover as much as 50 percent of the spectrum lost to transition zones when deploying UMTS at 900 MHz with legacy GSM networks, according to Sean Cordone, PhD, Vice President of Engineering at ISCO International. Dr. Cordone is the author of the whitepaper released today.

ISCO International, Inc. (OTC BB:ISOO.OB) is a leading provider of spectrum conditioning solutions for wireless carriers. Wireless operators worldwide will benefit from the content of this whitepaper identifying optimal use of wireless spectrum as they transition from 2G to 3G networks.

"Deployment of UMTS in the 900 MHz GSM band will be the route through which European operators will achieve near 100 percent population coverage for advanced 3G wireless services," Dr. Cordone said. "As wireless operators deploy UMTS systems, the interference between the new 3G network and the incumbent GSM system must be carefully controlled. Traditional network planning techniques for controlling this interference are very costly, since they require that substantial portions of valuable RF spectrum remain unused."

The whitepaper discusses technology currently in field trials of ISCO's recently announced ProteusTM, Digital RF Signal Processor. The Proteus solution offers a practical implementation of this technology that allows wireless carriers to significantly reduce the cost of deploying the expanded coverage of 3G while maintaining 2G network assets. The technology supports mixed UMTS/GSM network environments, as well as the flexibility to support future technologies including UMTS, HSUPA, HSPA+, WiMAX and LTE.
The whitepaper is being released at the 3G Optimisation and UMTS Conference in Prague this week and will be available for download from the ISCO website at: www.iscointl.com/news_info.htm  Dr. Cordone is participating on the conference panel entitled "Comparing UMTS 900 to HSPA+ and LTE: Does UMTS 900 Emerge as the Low Cost Alternative?"

About ISCO International
ISCO International is a leading wireless telecommunications solutions provider -- and global supplier of radio frequency management and "spectrum conditioning" solutions for wireless carriers. ISCO brings to the wireless market a suite of highly differentiated solutions for mobile operators, network infrastructure providers and resellers of wireless products and software solutions. ISCO solutions include adaptive interference management and radio frequency spectrum conditioning for all wireless technologies.