Based on simulation results, ZTE's MUSA algorithm offers an improvement of over 200 percent in overload ratio, thus aiding in the network transition in the era of the Internet of Things. MUSA, one of ZTE's leading Pre5G market research projects, employs 5G-ready technologies to provide commercial 4G LTE users with a 5G-like access experience. Other Pre5G technologies developed by ZTE include Massive MIMO and Ultra-Dense Network (UDN). ZTE expects its Pre5G technologies to be commercially deployed in 2015.
ZTE has also successfully tested its Pre5G UDN solution, which makes full use of the sophisticated Pico RRU hardware platform and Cloud Radio interference cancellation technology, enabling a denser deployment of base stations so operators can achieve higher density capacity.
By leveraging the near-far effect (NEAR-FAR Effect), ZTE's MUSA technology uses complex, non-orthogonal broadcast sequences on the transmitter side for modulation and successive interference cancellation on the receiver side to eliminate interference and recover user data. This allows multiple users to transmit information simultaneously on the same frequency, significantly improving system capacity.
ZTE has focused on the key needs of mobile operators for the next three to five years, leading the way in proposing a pre-5G concept. ZTE's Massive MIMO technology, which successfully completed its pre-commercial trial in 2014 in partnership with China Mobile, is recognized as a key 5G technology. Massive MIMO dramatically improves spectral efficiency and helps operators make full use of existing spectrum space and resources, significantly enhancing wireless network coverage and capacity.
In March 2015, ZTE officially launched a pre-5G base station integrating the BBU, RRU, and antenna, and demonstrated service flow alongside China Mobile at Mobile World Congress 2015 in Barcelona. At the NGMN Conference and Exhibition in Frankfurt, Germany, later that month, ZTE was included in Deutsche Telekom's initial list of 5G Innovation Lab partners.
