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Tech

Vodafone and Huawei achieve GSM-LTE Dynamic Spectrum Sharing trial

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Sanghamitra Kar
19 Jun 2014 09:25 IST

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SHENZHEN, CHINA: Huawei, a global information and communications technology (ICT) solutions provider, has announced the implementation of GSM-LTE Dynamic Spectrum Sharing (GL DSS) trial with Vodafone Spain.

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GL DSS is able to improve LTE capacity by up to 50 percent through maximizing wireless spectrum utilization. This trial represents a milestone in the innovation of Huawei's Single Radio Controller (SRC) that was released in 2013.

Several operators, including Vodafone, currently hold bandwidths of 20MHz at 1.8GHz, of which 10MHz is used for LTE and the rest for high GSM traffic. Huawei selected Vodafone's Mobile Access Competence Center in Spain to jointly define this spectrum management tool.

Huawei's SRC brings flexibility to spectrum resource allocation by introducing GL DSS. By applying interference scheduling in real time, the SRC gives GSM higher priority to use spectrum in periods of heavy traffic, providing protection against GSM voice interference.

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SRC also provides more spectrum for LTE compared to the standard fixed configuration through dynamic allocation; allowing for better LTE throughput. This trial verified GL DSS performance in the Vodafone-Spain commercial network, with results showing that this solution can reach LTE capacity gains of up to 50 percent, making 15MHz available for LTE with limited impact to GSM services.

As of June 2014, Huawei has deployed 50+ GSM/LTE refarming networks worldwide. SRC (GL DSS) accelerates GSM to LTE refarming and enhances pace of LTE deployment for a better mobile broadband user experience.

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