Hong Kong Telecom (HKT) and Huawei have demonstrated the world's first IP RAN based LTE A 450Mbps solution (3 FDD Carrier Aggregation) in Hong Kong.
At a press briefing, HKT and Huawei achieved a peak download rate of 435Mbps in a live test of the world's first demonstration of three component carrier (3CC) inter-site LTE-A carrier aggregation (CA) across three 20MHz spectrum blocks using an IP-RAN based solution.
HKT is already rolling out its LTE-A 450Mbps network using this IP-RAN based solution, and expects the network to be commercialized with compatible smartphones by 2016.
Being the most important feature of LTE-A, CA technology allows the combined use of fragmented spectrum resources to increase data throughput where implementations today require that the fragmented spectrum resources be hosted by the same cell site. However, many commercial CA networks today have coverage holes due to coverage differences between LTE cell sites using different spectrums, thus imposing difficulty of combining LTE carriers on different spectrums for CA realization, which in turn disrupts the user experience. To solve this problem, Huawei has invented an inter-site CA solution which is able to combine carriers from more than one cell site to maximize the CA coverage area.
For the Hong Kong test, Huawei provided HKT with this inter-site CA solution based on IP Radio Access Network (IP-RAN) backhaul. This IP-RAN based solution successfully integrated three 20MHz spectrum blocks to realize LTE-A 450Mbps without modifying the current transmission network.
Mr. David Wang, President of Huawei Wireless Network Product Line, said, "Huawei and HKT are committed to build a world-leading LTE-A commercial network for Hong Kong. Having achieved the world's first inter-site 3CC CA realization, we will now work together to plan for the full commercial use of this technology, aiming to further uplift the mobile experience for Hong Kong users."
No comments:
Post a Comment