According to different situations and needs, combined with the advantages of different technologies, 5G and WiFi-6 can flourish in the fields of industry, Internet of Things, self-driving cars, etc., and help the industry to further move toward intelligence.

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5G And WiFi-6, Who Is The Protagonist Of Smart
Manufacturing?
According to different situations and needs, combined with the advantages of different
technologies, 5G and WiFi-6 can flourish in the fields of industry, Internet of Things, self-driving
cars, etc., and help the industry to further move toward intelligence.
In December last year (2019), Mettis Aerospace, a major manufacturer of aerospace
equipment/key components in the United Kingdom (main customers include Airbus and Boeing,
etc.), and the Wireless Broadband Alliance formally announced the completion of the first phase
of WiFi-6 testing in the factory. It is known as the world's first trial of WiFi-6 infrastructure and
services in a factory, and it is also an important milestone in WBA (Wireless Broadband Alliance)
WiFi-6 testing and development plan.
As an actual user in the future, Mettis Aerospace believes that the test results are quite
satisfactory. A company spokesperson claimed that "WiFi-6 exceeded our expectations for factory
connectivity." Mettis Aerospace further explained that the internal environment of the factory is
complex. For example, the movement of large machines, the heat generated by the
manufacturing process and dust/particles, and even the material structure of the machine
equipment will interfere with wireless communication signals.
Nevertheless, WiFi 6 still works well in such a high-charge environment, using 80MHz bandwidth
can reach 700Mbps speed, and related applications that require low latency can also achieve a
delay of less than 6 milliseconds. These data prove that even In a complex and challenging factory
environment, the WiFi-6 infrastructure can still operate well under environmental interference
and provide high-quality and highly reliable communication quality.

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As the popularity of 5G continues to increase, especially when Germany and Japan have
successively opened up 5G enterprise dedicated frequency applications, well-known companies
in the world have planned to use 5G dedicated networks to improve efficiency or production
capacity in factories. In contrast, , WiFi-6 seems to be frozen.
However, the emergence of the Mettis Aerospace WiFi-6 factory case has undoubtedly injected a
booster for WiFi supporters, and even the remarks that WiFi-6 can replace 5G, as well as many
technical comparison articles.
From the perspective of smart production needs, do factories need 5G or WiFi-6?
If you simply compare the indicators of the respective technologies, 5G should still be slightly
better. The theoretical speed of 5G can reach 10Gbps, the maximum theoretical speed of WiFi-6
can reach 9.6Gbps, the delay rate of 5G is expected to be less than 1 millisecond, and WiFi-6 is 10
millisecond.
But for the end users, what they really care about is not the highest technical indicators, but how
to connect to the Internet quickly and smoothly at a reasonable price. Therefore, according to
different application scenarios, 5G and WiFi-6 have their own advantages. Inferior, but they are
expected to bring significant help to customers.
Due to its physical characteristics, poor penetration and susceptibility to interference, 5G signals
have limited indoor applications of 5G. To provide complete indoor coverage, a large number of
indoor distributed antennas and small base stations need to be built, which is costly. However, 5G,
like all cellular networks, is suitable for signal switching under large areas and high-speed
movement.
WiFi-6 is the opposite. Even if the new standard makes the transmission speed four times that of
WiFi-5, it can greatly reduce the problems of network traffic and signal interference. The case of
Mettis Aerospace has proved its feasibility. WiFi-6 also has advantages, but from the perspective
of network coverage, 5G still has a more mature deployment model for outdoor coverage.
Therefore, based on the above argument, the result of "5G main external, WiFi-6 main internal"
is derived.
Indoors, WiFi-6 improves the connection speed and latency of devices, and increases the density.
In addition to related applications such as smart manufacturing in the factory, applicable
locations include stadiums, concert halls, and conference centers, with high-density connectivity.
The indoor space required by the net installation.
Outdoors, 5G can promote many forward-looking experiences, including remote control, drones,
self-driving cars, smart cities, etc. There are also chip companies in Taiwan who believe that
self-driving cars will be one of the main rigid requirements for 5G in the future.
In theory, 5G and WiFi-6 should be able to be integrated with each other. The wireless access
point is separated from the 5G core network architecture, and WiFi-6 becomes the radio access
point of the enterprise, which is closely connected to the 5G core. 6 It has good economic
benefits and excellent performance. In the future, it is conceivable that many service providers
will use WiFi-6 as the access point of their 5G networks to replace distributed antennas and small
base station systems.
In addition to the integration of technology, 5G and WiFi-6 should also be able to complement

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each other's shortcomings in the application context. For example, when the sensor originally
connected through WiFi-6 in the factory is moved outside the factory, it can still be used. Through
5G network networking, the benefits of 5G and WiFi-6 collaboration can be achieved.
In addition, according to Nokia’s survey, in the application environment of many factories,
communication with a delay of 10 milliseconds can meet about 85-90% of applications. It shows
that if the factory uses WiFi-6, it can meet most of the needs, but there are still about 10-15% of
applications must use lower-latency communication, and this part may only be satisfied by 5G at
present. Therefore, it is not difficult to imagine that a hybrid solution of 5G and WiFi-6 may
become one of the future trends in smart factory networking.
The war between 5G and WiFi-6 does not actually exist. The two technologies have their own
characteristics and advantages to meet different application scenarios. With higher speed and
capacity, 5G brings mobility and extensiveness. It is more suitable for outdoor deployment, such
as mines, ports, or environments with large areas and not easily disturbed.
While WiFi-6 combines the flexibility of deployment in small areas and the advantages of cost, it
is more suitable for indoor use, such as office buildings, conference centers, concert halls, etc. In
addition to indoor and outdoor factors, different applications are for communication technology
The requirements are also one of the important considerations.
Therefore, considering important factors such as deployment flexibility, different application
scenarios, and costs, factories or enterprises in the future will use a hybrid solution that coexists
with 5G and WiFi-6. Both technology providers and users should jump out. The thinking that two
technologies compete with each other.''
According to different situations and needs, combined with the advantages of different
technologies, 5G and WiFi-6 can flourish in the fields of industry, Internet of Things, self-driving
cars, etc., and help the industry to further move toward intelligence.