SYDNEY: ZTE expects to commercially deploy Pre5G technologies like Multi-User Shared Access, Massive MIMO and Ultra-Dense Network in 2015.
ZTE has announced a breakthrough in 5G research and has demonstrated MUSA technology. Based on the simulation results, ZTE’s MUSA algorithm delivered over 200 percent improvement in the overload radio, helping to transition networks for the era of the Internet of Things.
MUSA is one of ZTE’s industry-leading research projects on Pre5G, which use 5G ready technologies to provide commercial 4G LTE end users with 5G like access experience.
ZTE also successfully tested its Pre5G UDN solution, which makes full use of the sophisticated Pico RRU hardware platform and Cloud Radio interference cancellation technology, allowing for denser deployment of base stations for operators to gain higher capacity density.
“The validation of MUSA and UDN technologies further enhances the Pre5G solutions,” said Xiang Jiying, chief scientist, ZTE.
“The Pre5G solution will help operators exponentially enhance the access rate and overall network capacity by leveraging existing resources in the next 3–5 years. Before standardization of 5G technologies, this solution can effectively mitigate the challenges of data traffic surge, and help operators seize market opportunities and achieve better business development,” added Jiying.
By leveraging the power differentials of transmitters (near-far effect), ZTE’s MUSA uses non-orthogonal complex spreading sequences at the transmitter side for modulation, and uses successive interference cancellation at the receiver side to remove the interference and recover the user data. This allows multiple users to transmit at the same time and frequency. The system capacity is thereby significantly improved in the strong near-far effect situation.
ZTE has been focusing on the core demands of mobile operators over the time horizon of the next three to five years, taking the lead in proposing the Pre5G concept.
ZTE’s Massive MIMO, which completed a successful pre-commercial test in 2014 jointly conducted with China Mobile, is recognized as one of the key 5G technologies. Massive MIMO sharply improves spectral efficiency, and helps operators make full use of existing sites and spectrum resources, significantly enhancing wireless network coverage and capacity.
