Tag: 5G

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5G and Pilot Projects to Optimize New Infrastructures

By Akira Jones, BIM Leader, HH Angus & Associates Limited

By now, most of us in the Architecture, Engineering, and Construction (AEC) sector have read about, lamented and experienced our industry’s general conservativeness and inability to affect change quickly, particularly with respect to developing and emerging technology. However, we are starting to see now that this is changing. Large-scale 3D printing, generative design, virtual/augmented/mixed reality, artificial intelligence, design process automation through software and a push towards a common data environment for design and construction information represent some of the many ways AEC is embracing the digital era.

The nature of design consulting is also changing. Multi-disciplinary design firms are transforming into software developers, moving their way into the SaaS market. General contractors employ teams of software developers. Companies from non-engineering sectors are rapidly entering into the AEC market. Professional services companies and technology start-ups are developing platforms for optimizing building infrastructure through Edge Devices and creating operational/digital twins. Much like the rest of the world, AEC is converging towards digital processes and the borders between different sectors are becoming less defined.

Edge Devices and Digital Twins will have a massive impact on how we design, build and operate building infrastructure, particularly as we continue our push towards a more sustainable built environment through low or zero carbon, net zero and more. We are already seeing a big uptake of smart buildings technologies and the global smart building market is expected to reach almost 62 billons USD by 2024.

Understanding Internet of Things, or IoT technology, in particular, and the current and future benefits to the built environment and how people interact with it will be instrumental in HH Angus’ ability to design spaces that perform better, create better and longer lasting value, and reduce the impact on the environment. It’s certainly easier to design and build new buildings with smart technology but what really interests us is the opportunity in the massive stock of existing infrastructure that can significantly benefit from these technologies. In fact, they provide an opportunity to evolve the ways in which we deliver our work and our relationships with the end-users, from the building owners and operators to occupants.

As designers, we often lose touch with the infrastructure we design, perhaps coming back years later to find something unrecognizable from its original state. At the opposite end, engineers also come into buildings later in their lifecycles, often without proper as-built documentation and have to scrape together any available information about how or why the building operates the way it does. Not an ideal situation, which can typically add time and expense to most projects.

Gathering operational, environmental and presence data can provide a bridge between the building, its occupants, and the engineers to create the potential for gaining useful insight into a building’s real-world operations and occupant behavior.

To this end, HH Angus had the desire to gain a deeper understanding of the relationship between smart buildings technologies and improving building performance. We launched our Smart Spaces initiative in 2019. Through this, we are exploring these new technologies through our own initiatives as well as research partnerships with academic institutions and tech start-ups and established providers. With Smart Spaces, we are exploring the use of IoT edge devices to gather environmental and occupancy data in commercial and institutional buildings.

As our pilot project had begun pre-COVID, we, like many firms, had to quickly adjust our plans. With everyone working from home, our office was empty, and we were trying to figure out what data we could collect since there was no one in the building. Like any challenge, this presented an opportunity. Where our previous approach had been to install a set of sensors that gathered a wide array of data with plans to see what insights we could glean, we were presented with a situation that provided us an immediately relevant use case. We thought about ways that the sensors could be used to aid our eventual re-entry into our own office. We shifted the balance of sensors to include more presence sensors to aid in people flow throughout our office. The sensors were placed in common and high traffic areas, giving employees aid in maintaining the ability to socially distance while in the office while also giving insight into usage patterns of these common spaces. The collected data is integrated and aggregated into an intuitive dashboard and transferred to the cloud/other edge devices via the 4G network such that we can view the basic analytics.

This pivot has helped us gain insight into the challenges faced by many of our commercial and institutional clients.

With the first stage of our pilot implemented, we look to expand our research to the 5G network. We were fortunate enough to be awarded access to the 5G ENCQOR test-bed located in the MaRS Discovery District (in downtown Toronto) which gives us the opportunity to explore use cases that can benefit from the low latency performance of 5G technology. We are currently engaged with our clients to determine real-world use cases for existing buildings to research on the testbed, paving the way for purpose-built data platforms.

As with any new (or new to us), technology there are no giant leaps in innovation, only deliberate and incremental steps forward. Where the challenge lies is not in using these technologies, but in determining how these new technologies can help our clients and our employees adapt and succeed in an ever-changing world. As consulting engineers, we can (and should) take a little step out of the traditional AEC approach and adopt some of the best practices (and mindset) of tech start-ups – mainly being inherently curious; focus on possibilities as opposed to the way its always been done; and be willing to quickly prototype, learn, and modify to get a minimum viable product into the real world.

HH Angus is an employee-owned, independent consulting firm of engineers, technical specialists and project managers with offices in Vancouver, Toronto and Montreal. Our core services include mechanical and electrical engineering, lighting design, vertical transportation, energy, sustainable design, information communications audiovisual technology (ICAT) and security design and digital strategy consulting. Together, we create innovative solutions for our clients’ most complex challenges to expand what is possible for a better future.

Reprinted from CanBIM Innovation Spotlight Publication 2021
https://www.canbim.com/articles/why-consulting-engineering-firms-should-think-more-like-tech-start-ups

Akira Jones, P.Eng., LEED AP, Principal
BIM Leader
akira.jones@hhangus.com

Akira Jones, P.Eng., LEED AP, Principal
BIM Leader
akira.jones@hhangus.com

A game-changer in the wireless communications industry, 5G represents the fifth generation of cellular connectivity and a significant leap forward in performance compared to 4G and LTE. However, in order to plan for its impact in industries such as healthcare, smart cities and commercial buildings, we have to understand its opportunities, limitations and design challenges.

 What is 5G?

First, it’s important to differentiate 5G from other wireless communication protocols such as Wi-Fi.

5G (along with previous standards like 3G, 4G and LTE) is a standard for wireless cellular communications, and uses licensed frequency bands which must be purchased by the carrier. Wi-Fi, on the other hand, refers to technologies commonly used for wireless local area networking – connecting users to a building or residential network which is often owned and operated by the building owner. Wi-Fi uses unlicensed frequency bands which are available for anyone to use, and which can result in an increased risk of signal interference. The new 5G standard augments existing Wi-Fi and LTE standards rather than replacing them – in fact, Wi-Fi 6 (802.11ax) is set to also dramatically change the performance of Wi-Fi communications.

With that in mind, let’s look at how 5G differs from previous generations of cellular technology:

  • Latency, or the amount of time it takes for information to travel from the sender to the receiver is reduced to a theoretical <1 millisecond end-to-end, which is on par with many wired networks. As a comparison, typical home Wi-Fi latency is 2-5 milliseconds, and cable/DSL connections can have latency up to 100 milliseconds. Reduced latency increases the responsiveness for applications like self-driving cars, and can help data speeds appear higher to the end user.
  • 5G supports a higher density of users (up to 1 million per square kilometre or 100 times the density of previous generations). This is a limitation of many existing networks and key to supporting the expansion of the Internet of Things (IoT) and the myriad connected devices carried by people all over the world.
  • Transmission speed, or the amount of data that can be sent in a given period of time, is increased from a maximum of 1Gbps with LTE to a theoretical limit of 10-100Gpbs with 5G. It is anticipated that actual speeds will be an estimated 200Mbps-1Gbps in the field, which is still significantly higher than what most users experience with LTE.
  • Ultra-high reliability of 99.999%, which translates into downtime of less than 5 minutes and 15 seconds per year, and meets the typical standard for mission-critical data centres and networks.
  • Reduced power consumption, which is key for extending the life of battery-powered field devices and IoT.

Although most users won’t notice the difference, 5G also uses different radio frequencies from past standards. Current cellular protocols typically operate on radio frequencies between 1900MHz and 2700MHz; however, 5G uses two distinctly different frequency bands: below 6GHz, which supports standard cellular connectivity (600-700MHz and 3.5GHz in Canada), and above 6GHz, which is focused on point-to-point data transfer (millimetre wave or 28-35GHz) and can only be used for line-of-sight applications. This change has implications for existing infrastructure, as radio frequency communications are highly dependent on the hardware that supports them.

When is it coming?

Frequency auctions are already happening across North America and Europe. Canadian 600MHz frequencies were auctioned off in early 2019, and higher frequencies, including 3.5GHz, are expected to be auctioned in late 2020 and early 2021. Bell Media and Rogers Communications are expected to be the major players at the 3.5GHz auction in Canada, while Ericsson, Qualcomm and other major US cellular carriers indicate that they are ready with 5G infrastructure and can deploy as soon as they own the rights to the frequencies. Some carriers in the US have already launched 5G networks on the 3.5GHz frequency band, and some frequency bands above 6GHz have been auctioned off as well, with more to come later in 2021.

What is the potential impact of 5G on the design, construction and real estate industries?

5G has the potential to support radical advances in technology, and is anticipated to become the new standard for wireless mobile connectivity. However, it doesn’t replace wired networks which still set the standard on data transfer and latency, or Wi-Fi, which uses unlicensed frequency bands to distribute wireless connectivity throughout a building, often at a significantly lower cost per gigabyte.

So where is 5G anticipated to have the greatest impact?

While typical cellular users will experience enhanced performance, better connectivity and higher data speeds, the impact of 5G will mostly be experienced by devices rather than people. Devices such as self-driving cars and robotics which must be able to analyze and react quickly to situations will benefit from the low latency of new technology, and high-bandwidth mobile applications such as virtual reality (VR) and extended reality (XR) will make use of the increased data transmission speeds. 5G also has the capability to connect to a greater number of devices and use less power than previous generations, opening up a wealth of opportunity in the effortless deployment of battery-powered, highly mobile and flexible networks of 5G sensors and devices without the need for additional wiring.

Healthcare: the reliability of 5G connections is well suited to supporting critical healthcare applications, such as continuous monitoring. Higher data transmission speeds will be instrumental in facilitating high-mobility communications for telemedicine, data collection, predictive analytics, machine learning and artificial intelligence. The ultra-low latency wireless connections will also support applications like mobile robotic surgery and virtual reality.

Commercial and Smart Buildings: the explosion of connected devices within buildings will rely heavily on the increased density of connections available under the new 5G standard. Buildings are becoming more connected, IoT devices and sensors are becoming more ubiquitous, and occupants have higher expectations around connectivity and performance. The lower power requirements of 5G also makes it easier and more cost-effective to deploy highly mobile, battery-powered devices throughout the building without significant infrastructure costs. This, along with enhanced reliability, will also support mission-critical applications such as monitoring of building systems.

Smart Cities: navigation systems and self-driving cars will benefit significantly, as will increased density of sensors and users – particularly in areas like stadiums and transit terminals. However, higher frequencies necessitate high density of end-points compared to previous generations, which could have aesthetic implications as antennas move from towers to street level.

In all of these examples, properly designed distributed antenna systems (DAS) will become increasingly critical in the extension of 5G coverage throughout buildings and other areas with limited signal coverage; however, the building itself can have a significant impact on the operation of these systems and must be carefully considered in the early stages of design.

How  do we design differently for future technologies like 5G?

When technologies change every five to ten years but buildings can last anywhere from 30 to 50 years (or even more), designing infrastructure to adapt to evolving requirements is critical to ensuring the building will be able to meet the needs of its occupants both today and for decades to come. One of the key changes with the evolution to 5G is that the new standards rely heavily on optical fiber infrastructure to achieve the required data transmission speeds, rather than traditional copper infrastructure. This means that legacy buildings may need to replace their existing infrastructure in order to deploy 5G throughout their building, and new construction should not only plan for the latest fiber infrastructure, but also install spare capacity to accommodate future generations of technology. It also means that 5G networks are not able to take advantage of Power over Ethernet (PoE) which supplies both data and power over a single cable, since PoE requires copper cable in order to deliver the power component. That being said, there are significant opportunities for PoE and other types of low-voltage distribution to work in conjunction with 5G by powering end-use devices and sensors.

From a building perspective, DAS that supports 5G requires a different topology from previous generations (known as a centralized radio access network or C-RAN topology), which may require changes to pathways and spaces compared to traditional DAS infrastructure. When designing 5G systems, it is also important to consider that higher frequencies do not penetrate buildings or obstructions as well as lower frequencies due to the inherent nature of the electromagnetic signal. Past generations such as 3G, 4G and LTE have used frequencies in the range of 1.9 to 2.6GHZ which had reasonable penetration, but the proposed 5G bands in Canada are significantly higher at 3.5GHz. While 3.5GHz provides better bandwidth and data transmission speeds than lower frequencies, it will also experience higher signal degradation and will require a higher density of antennas. This, along with the requirement for the latest fibre optic infrastructure, can create some unique challenges when performing upgrades in existing buildings which weren’t originally designed to accommodate 5G infrastructure. There are a number of solutions on the market to help ease the transition – and, in some cases, it is worth evaluating whether there are other technologies which could serve the same purpose with a lower capital investment.

Finally, the move towards more energy-efficient buildings can have a significant impact on deployment of wireless technologies of all types, and must be addressed early on in the design of the system. Many modern building materials have a negative effect on wireless signal penetration, meaning that a higher density of antennas is required to provide sufficient coverage. Additional testing may also be required after installation to optimize the system for the unique building environment.

Leveraging 5G in a Data-Connected World

5G has the potential to radically change our experience of connectivity and how we design the built environment. From smart cities to virtual reality, the world is becoming more connected every day – and technologies like 5G are playing a key part in the evolution of our environment. Designing buildings and systems to support these changing technologies in the decades to come will be critical as users increasingly expect a seamless integrated experience, no matter where they are.

Author:

Kim Osborne Rodriguez,P.Eng., RCDD

kim.osbornerodriguez@hhangus.com