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Vodafone Turkey, Huawei Trial Spectrum Sharing Between GSM & LTE on Commercial 900 MHz Networks

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Vodafone Turkey and Huawei announced recently that they have jointly comleted the world first verification of the  spectrum sharing solution between GSM and LTE on Vodafone's commercial 900 MHz networks in Diyarbakir city of Turkey.

Codenamed, GL, the solution enables spectrum sharing between GSM and LTE with unprecedented overlap between the two technologies, which increases both LTE data rate and cell capacity available in the 900 MHz spectrum allocation from Vodafone Turkey. Compared to LTE 5MHz, the average user throughput is increased by nearly 58% on downlink and 44% on uplink.

Vodafone Turkey launched 4.5G for commercial use in April 2016. With the largest 4.5G coverage in Turkey the operator currently serves over 8 million LTE users. As more and more users migrate to LTE, how to effectively allocate spectrum resources to handle increasing LTE data traffic is a priority for Vodafone Turkey.

GL spectrum sharing solution adopts Huawei-proprietary algorithms to free operators from the restrictions of standard LTE bandwidth, said Huawei. This solution ensures that scattered spectrum resources are fully utilized for higher data rate and better user experience.

According to Huawei, by introducing more flexibility in terms of the Resource Block allocation and spectrum allocation effectively used by LTE this allows to maintain sufficient GSM channels to carry the 2G CS traffic. The test cases show that GL spectrum sharing allows for an approximately 58% increase in average downlink user throughput, and a 44% increase average uplink user throughput, compared with LTE 5MHz bandwidth.

Malik Rao, CTO, Vodafone Turkey
Frequency spectrum resources are extremely valuable. Spectrum allocation is fixed in the traditional refarming solution, which results in low utilization rate. In comparison, GL spectrum sharing supports more efficient spectrum sharing between GSM and LTE. 

Cao Ming, President of Huawei's FDD Product Line 
We are glad to verify this solution on commercial networks in partnership with Vodafone Turkey. Huawei is dedicated to offering technical innovations to secure customers' business success. The GL spectrum sharing solution not only increases spectral efficiency, but also promises operators a smooth transition to LTE.

Ray is The Fast Mode's editor and content director. Ray has covered the wireless industry as a writer for more than 10 years, focusing on technology and business aspects of the telecoms sector. Ray can be reached at ray.sharma(at)thefastmode.com. Follow Ray at linkedin.com/in/raysharma10

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