5G is picking up speed, both figuratively and literally. The future of 5G is bright, if the latest predictions prove true. In 2020, Apple released the first iPhones to support 5G connectivity, working with both mmWave and sub-6 GHz 5G. AT&T and Verizon both announced that their 5G service is available nationwide, with Verizon also indicating that its 5G Ultra Wideband service (up to 4 Gbps) is available in parts of 71 cities. T-Mobile, which acquired Sprint in April 2020, added 2,000 towns and cities to its 5G network with the launch of its independent architecture. This increased the total of cities covered to over 7,500.
But the more exciting aspects of 5G are yet to come, as the collection of technologies known as 5G become an integral part of the retail experience, fixed wireless access, manufacturing, healthcare, mobility -- and woven throughout, the Internet of Things (IoT).
First, though, consider the scope of the overall growth. The 2021 Ericsson Mobility Report forecasts 5G subscriptions to reach 4.4 billion globally by the end of 2027, accounting for approximately 49% of total global mobile subscriptions. (It should be noted that while Ericsson as a communications technology provider has a vested interest in painting a rosy picture of 5G, its oft-cited Mobility Report is well respected.) The uptake rate of 5G subscriptions, the report notes, is anticipated to be much higher than it was for 4G. In the third quarter of 2021 alone, 5G subscriptions with a 5G-capable device grew by 98 million to reach around 570 million.
According to International Data Corp. (IDC), the number of 5G smartphones in the U.S. hit 89.5 million units by the end of 2021, up from only 33.4 million in 2020. IDC forecasts that by 2025, 153.3 million 5G smartphone units will ship in the U.S.
GSMA Intelligence puts 5G growth at 1.8 billion 5G connections by 2025, led by Asia and the United States.
Regardless of the numbers realized, the growth will come at great cost. McKinsey and Co. predicts that by 2030 only one-quarter of the world's population will have access to high-band 5G coverage, and that the rollout will cost $700 billion to $900 billion. That means that while 5G coverage will be greatly expanded, that expansion will cover much of the edge.
"Given the magnitude of the investment required, connectivity providers will continue to face a tough road. Many of them are already struggling to meet shareholder demands while considering capital investments to enhance their networks," stated the February 2020 McKinsey Global Institute report, "Connected world: An evolution in connectivity beyond the 5G revolution."
How retail will benefit from 5G
Retail is expected to be one of the greatest beneficiaries of 5G by the end of the decade. Especially in more populous areas where 5G coverage is expected to flourish, 5G is expected to complement smart retail technology, such as shelf sensors, cashier-less checkout and QR codes.
IHS Markit explained in its November 2019 report how 5G will contribute to the global economy. The report states that brick-and-mortar retailers could use 5G -- in conjunction with ultra-high definition (UHD) video, virtual reality and augmented reality -- to differentiate themselves in digital signage as a way of competing more effectively with online shopping. That would come in the form of greater in-store digital interaction with customers.
Forrester Research said that the benefit to retail will come in the form of building blocks "to frictionless end-to-end consumer experiences in the form of enhanced mobile broadband; massive machine-type communications (MTC) and ultra-reliable, low-latency communications." MTC provides connections to numerous devices that intermittently transmit small amounts of traffic. 5G mobile broadband will also facilitate virtual and remote support before, during and after a sale, including VR and AR services, smart screens and mobile cloud services, Forrester said.
5G communications will also boost retail supply chain transparency and efficiency as IoT sensors become ubiquitous, Forrester said. The IoT market in North America should hit 5.9 billion connections by 2025, according to GSMA.
Demand is building for 5G manufacturing
Using analytics, artificial intelligence and advanced robotics in smart factories can have a major impact on overall plant performance, McKinsey said. The findings show that smart factories can improve operational efficiency at every stage of production -- both on a single assembly line, as well as across multiple facilities. Industry will increasingly do this using low-latency and private 5G networks, according to analysts.
As industries consider their 5G options, they'll have the option of building and controlling a private 5G network using their own spectrum, or to procure a network slice from a provider's public 5G wireless network. By 2030, more than 1,000 business and government organizations will have deployed private 5G networks, according to Chris Antlitz, principal analyst at Technology Business Research. But because a factory overhaul to accommodate 5G for automation could cost hundreds of millions of dollars, only the largest customers will use private networks in the short term, he said.
The GDP impact of connectivity in manufacturing could reach $400 billion to $650 billion by the end of the decade, according to McKinsey.
5G will change healthcare from head to toe
5G will certainly revolutionize every aspect of healthcare, from supply chain optimization to remote diagnostics to electronic medical records management. In a report on 5G in healthcare, PwC stated that it doesn't expect extensive deployment until 2025 in many markets. (It notes, however, that the COVID-19 pandemic may well accelerate this.) When widespread deployment does occur, PwC foresees 5G-compatible devices being used to monitor bed occupancy levels, the movement of physicians, nurses and patients around the hospital, and wearable medical devices.
The biggest change will come through haptic communications and what has become known as the tactile internet. The International Telecommunication Union described the tactile internet as one that combines ultra-low latency with extremely high availability, reliability and security. The tactile internet will enable a physician to perform a procedure on a remote patient. PwC envisioned it like this: "The surgeon's movements at one site would be recreated instantaneously by computerized equipment at the other site, an innovation that could particularly benefit patients in rural areas or smaller regions, where surgeons specializing in complex procedures may not be readily available."
5G-enabled healthcare could generate $250 billion to $420 billion in global GDP by 2030, according to McKinsey.
Fixed Wireless Access will gain traction
Fixed wireless access (FWA), which had been eschewed by critics as redundant to fiber, uses 5G to provide broadband internet services to homes that cannot get -- or choose not to get -- wireline service. The main benefit, GSMA said, is that it can deliver average speeds similar to fiber-based services at about one-quarter the cost.
"For customers, the advent of 5G means that previously unconnected households and communities will realize the benefits of higher speeds, capacity and bandwidth to support their increasing number of IoT devices," GSMA stated in its November 2019 report, "The Internet of Things in the 5G Era."
FWA has become one of the leading use cases for 5G New Radio. 5G NR is a set of standards that replace the LTE network 4G wireless communications standard. Fiber equivalent bandwidth transmissions are supported by 5G NR for applications such as streaming video and low-bandwidth transmissions in massive (M2M) communication. 5G NR also handles vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) transmissions with an extremely low latency demand.
FWA subscribers will require new customer premises equipment (CPE). 5G CPE shipments for FWA will surpass 1 billion by 2030, representing a 47% CAGR over the next 10 years, according to Counterpoint Research.
5G beyond 2022
5G promises to bring the world to our mobile devices as we walk from point A to point B. However, the real excitement is what 5G brings to intelligent mobility systems -- car sharing services, public transport, V2I and V2V, and shipping and receiving. Add to that list smart cities that can use 5G to improve operational efficiency, share information with the public and improve both the quality of government services and citizen welfare. That includes improving traffic flow.
5G also has tremendous potential for enterprises. Among the uses where 5G is likely to have a large effect is with Citizen Broadband Radio Service (CBRS) and private networks. According to Research and Markets, the global 5G enterprise market will reach $83.45 billion by 2031.
JPMorgan forecasts for 5G are also very strong, with enterprise opportunities helping to accelerate growth. In North America alone, JPMorgan forecast that 5G will generate $180 billion by 2030.
"The biggest opportunity for 5G is in enterprise," wrote Samik Chatterjee, a telecom and network equipment/IT hardware senior analyst at JPMorgan, in a report. "Companies have only just started to scratch the surface in terms of investing in enterprise use cases."
The overall total effect of 5G around the world is a massive number to comprehend. According to PwC, the total global effect of 5G by 2030 will reach $1.3 trillion.