ZTE and Qualcomm boost UMTS performance to rival LTE
Published: 6 July, 2009
READ MORE: Qualcomm | ZTE | LTE | UMTS
Fighting an image of producing low cost but not groundbreaking technology, ZTE has increasingly been working to blaze new trails in 3G infrastructure performance. It has excelled in software defined base stations and enhanced performance in CDMA2000, and is now working with Qualcomm to boost the uplink performance of W-CDMA.
The two firms are collaborating to enhance the capacity and data throughput of UMTS base stations by around 60%, incorporating uplink interference cancellation (ULIC) technology from the chip giant. ZTE is the first to support this commercially.
While ZTE is hustling as hard as anyone for early positions in LTE trials, it knows the focus for most operators in the near term will be enhancing the performance, and ROI, of their existing technologies. The technology can deliver a user experience that is comparable to LTE in a similar channel bandwidth, claim the partners, and can also increase UMTS voice capacity by up to 45%.
This is achieved by eliminating interference from multiple uplink data streams and Qualcomm says this is enabled by the high level of integration in modern chips, pushing the performance of CDMA-based modems "close to their theoretical limits".
Zhang Jianguo, general manager of ZTE's UMTS products, said in a statement: "Using ULIC technology, we are providing operators with a highly efficient means to optimize their system performance while also extending the lives of their existing networks."
"Interference cancellation is helping to redefine the performance characteristics of UMTS by improving system capacity and delivering data throughput that is on par with LTE networks," said Jing Wang, executive VP of Qualcomm in Asia-Pacific and MEA. "It not only provides faster speeds, but also creates a better experience for the growing number of people using mobile devices to upload and share data-intensive content, such as photographs and videos."
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