5G technology development is a drawn-out marathon that requires constant innovation and forward thinking – and Huawei intends to remain as a pace setter, according to Wireless Product Line Vice President Gan Bin.
In an April keynote speech at the 2021 Huawei Global Analyst Summit (HAS) Bin outlined Huawei's 5G strategies and vowed to continue its innovation leadership as the wireless technology evolves.
For an example, Bin points to Huawei's 5G Super Uplink technology. In development since 2016, the scheme decouples uplink and downlink channels and enhances uplink capacity by flexibly mixing low- and high-band spectrum as well as Time Division Duplex (TDD) and Frequency Division Duplex (FDD). With this upgrade, 5G carriers can support Augmented Reality (AR) and Virtual Reality (VR), which are equally demanding of uplink and downlink performance.
"In 2019 we worked with China Telecom to deploy the Super Uplink in not only edge but also the cell center," Bin said. "In 2020, we have improved the uplink speeds to close to 1,000 Mbps from the previous several hundred Megabits."
Huawei's 5G development strategy focuses on three strategic elements, which Bin likens to DNA. First, Huawei focuses on gaining insight into wireless industry development, particularly when it comes to using a wider range of spectrum to improve users' bandwidth experience. The solution is Massive MIMO and multiple antenna technology, which "is the fundamental technology of 5G," he said, adding that "with our understanding of 5G, next is to address all the kinds of issues when it comes to deployment."
The second element of Huawei's strategic DNA is openness and cooperation through joint innovation, as illustrated by Huawei's work with its carrier customers. In South Korean, its carrier customers faced strict government-imposed limits on the weight of base station equipment installed on rooftops. So in 2018, Huawei came up with a Massive MIMO active antenna unit (AAU) solution that weighs just 20 kilograms. In Europe, carriers faced a different problem: About 30% of the time, they had access to a single antenna due to limited installation space. So in 2019 Huawei came up with the A+P antenna, which integrates 2G, 3G and 4G antennas with 5G AAU modules on a single pole.
Huawei's third DNA element is to adopt effective investments for strategic development. Starting in 2012, Huawei achieved technical verification of Massive MIMO in 4G deployments, and it immediately started work on 5G Massive MIMO. In 2018, it launched 5G Massive MIMO, " so you can see how we have had effective investment in such strategic developments," Bin said.
The company's 5G innovation continues, with two key, forward-looking goals – starting with expansion of Massive MIMO to include every frequency band and every scenario.
"So FDD should also adopt the massive MIMO solution, just like TDD has," Bin said. "FDD needs to be developed on top of the 4T4R solution. However, its current experience cannot meet the user's expectations. If we could be able to combine that with 2.1 GHz or 1.8 GHz wideband, then we are able to have 700 to 800 MHz of continuous coverage. So this is what we mean by bringing Massive [MIMO] antenna to FDD."
The second innovation goal is to work with industry partners to define new directions and technologies. To that end, Huawei was among the first to propose an intermediary 5.5G wireless standard. Huawei also will continue to develop on-demand frequency band allocation, customized air interface capabilities for diversified services and narrow on-demand topologies for a constant experience.
Given augmented reality and virtual reality will become dominant applications, "we need to enable a Gigabit to everyone, instead of just particular users. And second, we need to enable both uplink and downlink Gigabit speeds, instead of only the downlink Gigabit scenario. And third is positioning and sensing," he said. "So from the broadband to ultra-broadband evolution we need to first define how wide that ultra-broadband will be, and that depends on our current equipment capabilities and the industry requirements."
Even as 5G evolves, there will be more diverse needs, so that means the pipes should be more intelligent, he added. That will drive the need for customized air interfaces, on-demand orchestration and ability to tap high, medium and low frequency bands plus multiple modulation schemes.
"5G will be the technology for the next decade, so it needs long-term and strategic efforts on our focus areas," Bin said. "Without these steps we cannot complete the long journey. So for Huawei, we will continue to adhere to our three DNAs, and focus on continuous innovation, help customers achieve business success maintain our leadership in product solutions and technologies."
This content is sponsored by Huawei.
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