Conducted in a Singtel laboratory, the trial delivered speeds that breached the 1 Gbps barrier by combining several key LTE technologies including 256 QAM, 4x4 MIMO, and aggregating two licensed and three unlicensed spectrum bands on a TM500 Test System device.
Mark Chong, Singtel’s Group Chief Technology Officer says: “We are very encouraged by this breakthrough in peak speeds. In Singapore, a large percentage of mobile traffic is generated indoors with more mobile customers browsing the web, streaming video and accessing cloud applications on the go. We are now in a position to deploy LAA technology to boost our LTE mobile capacity to meet increasing traffic demand. This will allow us to deliver a faster and more reliable mobile connectivity experience even during peak periods.”
The unique 12-layered LAA configuration used in the trial will provide 2 to 3 times faster than prevailing peak LTE speeds, resulting in enhanced user experience, especially in high traffic indoor environments such as shopping malls. Following this successful trial, Singtel will explore the feasibility to deploy the technology on Singtel’s network.
Martin Wiktorin, Head for Ericsson Singapore, Brunei & the Philippines, says: “Licensed Assisted Access took wireless technology to a whole new level, delivering the increased capacity and faster speeds that operators demand as they evolve their networks. This trial is a significant milestone in the use of LAA, pushing the limits of Gigabit LTE in a unique configuration of advanced technologies.”
This latest breakthrough extends the partnership of Singtel and Ericsson in 4.5G LTE and trialling 5G in Singapore. Earlier this year, high download speeds of up to 800Mbps were achieved on Singtel’s high-performance LTE network by deploying 256 QAM downlink, 4x4 MIMO and triple carrier aggregation techniques. In October 2017, the partners jointly established a 5G Centre of Excellence to facilitate 5G development in Singapore.
Singtel’s 4.5G LTE network offers Singapore’s fastest and widest mobile data speeds at 500Mbps nationwide.
NOTES TO EDITORS
Singtel is Asia's leading communications technology group, providing a portfolio of services from next-generation communication, technology services to infotainment to both consumers and businesses. For consumers, Singtel delivers a complete and integrated suite of services, including mobile, broadband and TV. For businesses, Singtel offers a complementary array of workforce mobility solutions, data hosting, cloud, network infrastructure, analytics and cyber-security capabilities. The Group has presence in Asia, Australia and Africa and reaches about 670 million mobile customers in 22 countries. Its infrastructure and technology services for businesses span 21 countries, with more than 428 direct points of presence in 362 cities.
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Low Mei Yen
Group Strategic Communications and Brand
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 In the trial, four layers with 4X4 MIMO on licensed spectrum were used, as well as 2 layers on a second licensed band, and six layers with LAA (2 layers X 3 unlicensed bands). The Ericsson Radio System hardware used included Radio 2203 for the licensed spectrum and Radio 2205 for the LAA (unlicensed spectrum). All radios were connected to a single Baseband 5216. Test device supplied by Cobham Wireless and Stellent Networks Pte Ltd.