ZTE proposes first pre-5G concept
2 July 2014, Shenzhen, China – ZTE Corporation (“ZTE”) (H share stock code: 0763.HK / A share stock code: 000063.SZ), a publicly-listed global provider of telecommunications equipment, network solutions and mobile devices, has introduced its first pre-5G concept.
At the LTE World Summit 2014 in Nice, France, ZTE announced that under certain conditions some 5G technologies can provide a 5G-like user experience on 4G terminals without changing the air interface standards.
“With next-generation 5G technologies being deployed in 2020, there were industry concerns over what technologies will be used in the next six years,” said Dr Xiang Jiying, ZTE’s CTO of wireless products. “To address this, ZTE proposes to apply some of the 5G technology on top of 4G to meet users’ requirements.”
For example, with Massive MIMO the reference codes, such as the CSI-RS (channel state information reference signal) should be modified to support hundreds of antenna ports, and the terminals should also be modified for the feedback of hundreds of PMIs (Pre-coding Matrix Indicator).
However, in TDD (time division duplex) mode, the symmetry of uplink and downlink channels can be used for channel estimation. Although without feedback channels, the accuracy of channel estimation even exceeds the feedback result. Another example is inter-site interference cancellation in UDNs (user densification network). The interference can be decreased effectively through ZTE’s sophisticated 4G Cloud Radio architecture, such as its dynamic local mesh networks, and the R12 on/off technologies.
In addition, ZTE has invested heavily in the development of 4G vector processing chipsets, which have extensible software architecture and can meet pre-5G requirements by modifying software instruction sets rather than changing hardware.
About ZTE
ZTE is a publicly-listed global provider of telecommunications equipment and network solutions with the most comprehensive product range covering virtually every telecommunications sector, including wireless, access & bearer, VAS, terminals and professional services. The company delivers innovative, custom-made products and services to over 500 operators in more than 160 countries, helping them to meet the changing needs of their customers while growing revenue. ZTE commits 10 per cent of its annual revenue to research and development and has leadership roles in several international bodies devoted to developing telecommunications industry standards. ZTE is committed to corporate social responsibility and is a member of the UN Global Compact. The company is China’s only listed telecom manufacturer that is publicly traded on both the Hong Kong and Shenzhen Stock Exchanges (H share stock code: 0763.HK / A share stock code: 000063.SZ). For more information, please visit www.zte.com.cn.
