Telecommunications equipment provider ZTE in association with Marvell Technology group is all set to showcase the world’s first 40 MHz uplink Carrier Aggregation (CA) over a TD-LTE network.
With a terminal device by Marvell, ZTE achieved a consistent uplink data rate of 90 Mbps using 0 system configuration ratio (uplink/downlink: 3/1) and 64QAM (quadrature amplitude modulation) in the demonstration at the 10th Global TD-LTE Initiative (GTI) in Shanghai, China. The terminal provided by Marvell is the world’s first that supports uplink CA and 64QAM.
In a release ZTE said that the major challenge faced by TD-LTE operators was limited uplink throughput.
“The successful demonstration by ZTE and Marvell will help the industry overcome the limitation, enabling downlink CA to use the single- or dual-stream beamforming technology on multiple carriers to improve the performance of TD-LTE networks,” said company officials.
Carrier aggregation is a core technology for LTE-Advanced networks, enabling operators to combine multiple carriers at the same or different frequency bands into one transmission channel to take full advantage of limited frequency spectrums to multiplex a cell’s peak rate.
By the end of May 2014, ZTE has gained a total of 35 TD-LTE commercial contracts and cooperated with 66 operators in 40 countries to construct pilot and commercial TD-LTE networks. ZTE is one of the world’s top providers of 4G technology, establishing partnerships with telecommunications operators including China Mobile, CSL, Bharti Airtel, Hutchison H3G and Telenor.
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