Huawei’s CloudAIR technology points to many important aspects of future spectrum management, allowing multiple RATs to share the same spectrum in a flexible way. Just weeks after Bharti Airtel of India became the first operator to use the technology to support three radio standards in the same airwave, Egypt’s Etisalat Misr has achieved another milestone. It has completed the world’s first verified use of CloudAIR for dynamic spectrum sharing.
The operator used CloudAIR GL15MHz to share 15 MHz of 1.8 GHz spectrum between GSM and LTE, in a dynamic way, on Etisalat Misr’s 1.8 GHz network in Cairo. The result was an increase in the LTE data rate and cell capacity, said the telco.
Compared to running LTE in 10 MHz and GSM in 5 MHz without CloudAIR, 4G user throughput increased by 2% on the downlink and reached a peak of 92Mbps, while GSM performance was not degraded.
CloudAIR uses Huawei’s proprietary algorithms to free operators from the restrictions of standard LTE bandwidth, so that scattered spectrum resources can be organized to deliver higher data rates by increasing flexibility in the resource block allocation and spectrum allocation used by LTE. Sufficient GSM channels are maintained to carry remaining 2G services such as voice or machine-to-machine, and different uses can be prioritized by the operator.
“Spectrum allocation is static in the traditional refarming solution, which results sometimes in low utilization rates,” said Khalid Murshed, CTO of Etisalat Misr. “In comparison, the CloudAIR GL spectrum sharing has helped to boost spectral efficiency and improve the overall experience of 4G users in Cairo.”