Singaporean mobile carrier M1 has announced that it will be trialling 5G small cells in partnership with Nokia at the end of this year.
The trials will take place across M1's 4.5G narrowband Internet of Things (NB-IoT) heterogeneous network (HetNet) in Singapore, which was rolled out using Nokia's Flexi Zone Wi-Fi equipment and small cells and was labelled a precursor for 5G.
According to M1, the companies will use the tests to inform how to commercially deploy 5G small cells in a "dense cell grid architecture" at high-frequency spectrum bands, as well as to demonstrate low-latency 5G IoT use cases.
"The practical learning from early 5G field trial is critical for the success of developing high-performance and demand-driven 5G services for our customers in future and enables us to play a key role in Singapore's Smart Nation initiatives," M1 CTO Denis Seek said.
M1 had first partnered with Nokia on 5G network trials back in October 2016, displaying 1ms latency in a robotics demonstration.
The telco last week also announced that it is working with Chinese networking giant Huawei to complete an end-to-end live broadcast of virtual reality (VR) content over a 5G network.
The trial with Huawei, which will make use of the 28GHz millimetre-wave (mmWave) spectrum band, will take place at the end of June in M1's MiWorld building in Jurong. It constitutes the first live end-to-end 5G trial of Huawei's equipment in Singapore in that frequency band, the companies said.
Huawei International CEO Lei Hui said the company would "continue to invest heavily in the research and development of 5G key technologies and products, cooperate with global industry partners, and promote the implementation of 5G commercial deployments and a healthy industry ecosystem worldwide".
Huawei and M1 are planning to conduct a non-standalone 5G field trial by the end of this year using the 3.5GHz band, and then a standalone 3GPP standards-compliant trial using both 28GHz and 3.5GHz bands in mid-2019.
The two had announced attaining speeds of 35Gbps during a trial of 5G network technology in January last year, at that time using mmWave spectrum in the 73GHz E-band.
M1 and Huawei have also been working together on improving 4G speeds for more than two years; at the start of 2016, they announced attaining 1Gbps download/130Mbps upload speeds across M1's 4G mobile network using a CAT14 Huawei device for the trial.
Also working with Huawei on 5G in Singapore is StarHub, which attained speeds of 35.15Gbps during a trial at the start of last year using 2GHz at the e-band -- which sits between the 60GHz and 90GHz frequencies -- using three layers of e-band, as well as 64 Quadrature Amplitude Modulation (QAM).
StarHub and Nokia also attained speeds of 4.3Gbps and latency of 1ms during a 5G trial over centimetre-wave frequency between the 3GHz and 30GHz bands using the Nokia AirScale platform back in November 2016.
StarHub then activated a gigabit-speed LTE mobile network in Singapore earlier this year, as well as enabling NB-IoT capabilities using Nokia technology.
According to StarHub, the network upgrade also enables IoT connectivity, with the carrier signing a multi-year agreement with Nokia for the networking giant to continually upgrade its network using small cells, virtualised core and IP routing, and advanced radio access technologies.
Nokia will also provide network management, security, IoT, cloud orchestration and signalling, self-organising network, and session border controller software.
Singapore's largest carrier, Singtel, has partnered with Ericsson on gigabit LTE and on 5G.
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