Qualcomm Inc, Telefónica España and Huawei Technologies have completed the 3G UMTS and HSDPA field trial using 900MHz spectrum in Talarrubias, located in the Extremadura region of Spain. The trial results validated that UMTS can co-exist with GSM at 900MHz.
Furthermore, it was proven that the propagation advantage of 900MHz may be used to extend the significant spectral efficiency gains of UMTS for voice and data coverage relative to 2100MHz that is currently used in European 3G markets.
UMTS/HSDPA technology at 900MHz spectrum makes the delivery of voice and high-speed 3G services more cost-effective as compared to 2100MHz because at lower frequencies, the propagation advantage allows for a significant increase in the area covered by a base station. This advantage translates to significant cost savings for operators and better in-building coverage to improve the overall user experience for their customers.
Under Telefónica's guidance, Qualcomm's Engineering Services Group (ESG) led the execution of the UMTS 900 technology trial that involved Huawei UMTS/HSDPA 900MHz base station products and Qualcomm's mobile station modem (MSM) chipset-based terminals.
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