1. So What’s the big deal
with
WiFi6

2. What is Wi-Fi 6 (or 11ax)?
802.11ax and Wi-Fi 6 are interchangeable engineering and marketing terms that have the same meaning
You may also sometimes see the term “high-efficiency wireless” or “HEW” used
Wi-Fi 6
2019
11AX
Wi-Fi 5
2013
Wi-Fi 4
11AC
High Efficiency
4x Capacity
IoT Scale
Cellular like Determinism for high quality services
Higher power efficiency to accelerate IoT adoption
Extended outdoor range
Better app. performance in high density deployments
2009
Wi-Fi 3
11N
Wi-Fi 2
2004
Wi-Fi 1
2003
11A/G
1999
11G
11B
IEEE ax Ratification now due Q3 2020
WFA Wi-Fi 6 certification Q3 2019

3. How Wi-Fi 6 differs from Wi-Fi 5
How Wi-Fi 6 differs from Wi-Fi 5? Wi-Fi 6 is all about High Efficiency Wireless (improving upon Wi-Fi 5 limitations)
Wi-Fi 5 =
.11ac was primarily about Very High Throughput
However, Wi-Fi 5 has these limitations…
MU-MIMO only worked in Downlink
Has small packet latency issues
Need for better battery life IoT & Phone
Performance (more radios, faster QAM)
Parallel Processing (UL/DL) is limited
Need to drive High Efficiency Wireless into the actual clients – Better QoS, spectrum efficiency and of course more throughput 
Need for OFDMA to reduce latency issues cause by small packets
2.4 GHz is no longer a junk band given the limited channels, the need for High Efficiency Wireless – and channel reuse is greater than ever.

4. Both Bands are Back in 802.11ax
IOT & More
Clients
2.4 GHz
5 GHz
Both Bands are Back in ax
Improved Speeds –
Improved encoding
Packing more data in the same spectrum

5. Experience: Wi-Fi 6 (802.11ax) What is the big deal?
Higher data rates
Increase in overall network capacity
Reduced latency and greater reliability
Improved power efficiency
1024-QAM for up to Gbps per radio and single- antenna speeds of Gbps
8x8:8SS
Enables next-generation 4K/8K and AR/VR video
3x to 4x more throughput than ac via OFDMA
Up to 4x capacity gain in dense scenarios with BSS coloring
Multiuser MIMO gains on all client types
Scheduled uplink and downlink OFDMA for deterministic “cellular-like” latency, reliability, and QoS
Optimized for IoT scale with hundreds of devices per AP
Up to 3x better battery life with Target Wake Time (TWT)
New coding structure and signaling procedures for better transmit and receive efficiency
For more information, see:

6. Use cases Enhanced Mobile Broadband Massive Scale IOT
Higher performance to mobile devices
50 Mbps or higher to every user in dense environments
Enhanced video (4K, 8K), AR/VR, Immersion Experience
Next gen e-classrooms, Stadiums, Modern Workspaces
Massive Scale IOT
Support a high density of IoT devices
Asset tracking, Context based services, Electronic Payments
IT & IOT Integration, Automation
Hospitality, Retail, Smart Buildings
Mission critical Services
Ultra reliable and low latency applications
Process automation, Automatic Guided Vehicles, Real-time analytics
Manufacturing, Remote healthcare, Warehouses
Quality-of-experience
Determinism – NEW contention-free MAC operation ensures delivery time consistency and reliability (akin to LTE/5G)
Low-latency – multi-user access (OFDMA) reduces access-delay & round- trip time (RTT)
✔ Multi-Gigabit link capacity
Up to 8 spatial-streams (8SS) and 160MHz  9.6Gb/s
Essential for emerging apps (4K AR/VR) & multi-hop mesh networks
✔ IOT Scale
Higher client density (up to 78 simultaneous OFDMA clients in one channel- access cycle)
Lower-power due to OFDMA effective data-rates & target-wait-timers (TWT)
✔ Large cells
Robust OFDMA preamble plus extended guard-interval and symbol-lengths
✔ Improved roaming/handoff
WFA 11ax includes ai (Fast Initial Link Setup) making handoff comparable to LTE
✔ Improved LOCATION
OFDMA-based AoA antenna-array yields improved accuracy

7. 8 Simultaneous Connections
Wi-Fi 6 key technologies – spatial diversity
MU-MIMO
8 Simultaneous Connections
Uplink and Downlink
Spatial Streams enable Simultaneous Connections and now for both UL & DL

8. Wi-Fi 6 key technologies – OFDMA Orthogonal Frequency Division Multiple Access
Time
Time
Frequency
Frequency
One sub-carrier is assigned per client/user
Each resource unit is assigned per client/user
A single 20 MHz channel can be split into 9 resource units of 2 MHz to optimize IOT-style small traffic

9. More Air Time means Better Performance with low latency
OFDMA
OFDM
More Air Time means Better Performance with low latency
Truck is representing

10. OFDMA More Air Time means Better Performance with low latency
50 Mbps/ Client with 80 Clients / AP
<3% Packet Loss
More Air Time means Better Performance with low latency
30 to 50
40 Clients
Slide 26 Feed deck

11. Modulation density gains
802.11ax is all about high efficiency wireless These improvements are Wi-Fi 6 enhancements to make every microsecond “On THE AIR” matter.
.11ax High Efficiency Wireless (HEW) is all about optimizing the time spend “ON THE AIR” and how much information is on the air during any given Micro Second “uS”
Four things determine Air time efficiency
Data rate (Modulation density) or QAM - (how many Bit’s per Radio Symbol) 64 QAM is more robust but 1024 QAM is a lot faster
Number of spatial streams and spatial reuse (introduction of OFDMA and Resource Units) and UL/DL MU-MIMO
Channel bandwidth – How Many frequencies can we modulate at one time
Protocol overhead – Preamble/Ack/BA, Guard Interval “GI” etc.
Modulation density gains
64 QAM
256 QAM
1024 QAM
802.11agn
6b/symbol
802.11ac
8b/symbol
802.11ax
10b/symbol
Wi-Fi channel width
20 MHz
40 MHz
80 MHz
160 MHz
Note: Channel Bonding reduces range as the power is spread out with each additional 20 MHz adding a 3 dB penalty in SNR and the greater the QAM the harder it is for the receiver to decode therefore it is more sensitive to noise.

12. But its not just the speeds

13. Campus of the Future needs to have
Resiliency &
High Availability
Security &
Visibility
Intelligence &
Data Analytics
Zero Downtime
Highly Available & Redundant Design
Protocols High Availability
Transport Security
Application Visibility
Trusted Systems
Open Interfaces
Telemetry & Analytics
Data Analysis
Campus of the Future Requirements
Primary medium –
Network sits behind that
How
Critical things are moving to wifi
To support this criticalk wifi yoyu need to have a network that’s uspports

14. And that needs Innovations

15. Custom ASICs Rich Data Set Intelligent Programmable Secure
Providing Data up the Stack
Netflow, SPAN, AVC, NBAR
Adapting to fast changing technologies
VXLAN, LISP, SGT, iCAP
Securing the Transport & End Points
MACSEC, WPA3, DTLS
Custom
ASICs
Ready to adapt new Innovations & Technologies

16. Wi-Fi 6 and 5G Technology Transitions

17. Customer call in the car
In this upcoming world Wi-Fi 6 and 5G complementary throughout the day, frictionless & unnoticeable….
Wi-Fi 6 5G
Wi-Fi 6 5G
Wi-Fi 6
Wi-Fi 6
Wi-Fi 6
© Cisco and/or its affiliates. All rights reserved. Cisco Confidential
Home
Driving
Corporate Office
Customer call in the car
Visit a branch office
Coffee Shop
Hotel
Wi-Fi6 is expected to play a key role in the emergence and adoption of the new cellular wireless technology: 5G. 5G and Wi-Fi6 will play a complementary role for enterprises, SPs and consumers and the interoperability and ease of hopping between wireless technologies will be a focal point for Cisco’s wireless vision.
The ideal situation is a user will be able to seamlessly jump from different wireless technologies without stopping to onbard. Aday in the life would follow a user from home to their car to work,etc using both 5G and WI-Fi 6.

18. But Wi-Fi 6 is happening now, and will enable Enterprise use cases much sooner
Timeline to reach technology & ecosystem maturity
Wi-Fi 6
Full-featured APs
First clients
Massive proliferation of clients
First APs
2018
2019
2020
2021
2022
2023 and beyond 5G
Fixed Wireless begins
Fixed Wireless in curb to home/ SMBs (5G WAN)
Carrier rollout in select cities in US, Japan, China
Ubiquitous in all major cities in US, EMEA, Japan, China
Massive mainstream 5G NR roll-outs
Adoption of these new standards requires an upgrade in infrastructures and devices. A 5G network is of little use if there are no 5G devices available. The same holds true for Wi-Fi 6. So we need to look at the planned rollout schedules for the network and devices.
Initially, 5G will focus on fixed wireless applications to service residential backhaul from home routers in high density urban or last mile rural areas. 5G devices such as smartphones may start emerging later in However, service providers may take many years to build out the counterpoint infrastructure to support them. Service Providers will likely start to offer 5G services in select urban cities around At this time, there may be a few client devices—primarily smartphones and a few laptops—that support 5G. As we move into 2021, ubiquitous 5G services will start in many big cities in the US, EMEAR, Japan, and China with a broader 5G client ecosystem coming shortly after in Massive 5G roll-outs with convergence radio systems will then be mainstream in 2023 and beyond.   
Wi-Fi 6 appears to be on a faster rollout. Even though the standard has not been fully ratified, several vendors, have announced Wi-Fi 6 access points. Samsung has announced a Wi-Fi 6-capable smartphone and other major smartphone vendors are expected to follow suit in Using the transition to Wi-Fi 5 (802.11ac) as a reference, we expect users and enterprises to transition to the new standard over three years from 2019 to 2022.
Overlaying these timelines, enterprise networks will have transitioned to Wi-Fi 6 long before 5G becomes mainstream.

19. 5G and Wi-Fi 6 are complementary, but Wi-Fi 6 will continue to be preferred & primary wireless access in the Enterprise
Wi-Fi 6
(802.11ax) 5G
New wireless technology
Outdoor
Outdoor + Indoor
Indoor
Optimization for
Coverage
Capacity, density
Target applications
Transportation
Outdoor Wireless
AR/VR Apps
Massive IoT
Indoor Enterprise
Retail
Data and experience ownership
5G and Wi-Fii 6 will both offer High reliability, Low latency and Quality of Experience protection. However there are uses cases thatwukk be exclusive to each. And there will be some cross over as well.
Wi-Fi 6 is optimized for capacity and density where as 5G is optimized for coverage
Wi-Fi 6 Coverage:
The targeted applications for Wi-Fi 6 covers Carpeted Enterprise as well as retail, public venues and hotspots
5G Coverage:
5G is targeting Transportation and outdoor Outdoor urban & rural fixed wireless (alternative to fiber) as well as Private LTE/5G
The common applications include AR/VR and high bandwidth video as well as the explosion of IoT including Industrial and manufacturing.
From a data and ownership perspective, with 5G, the network and the data will be managed and owned by the carrier. With Wi-Fi 6, this will be owned by the entreprise entity that owns the network.
One last point to make:
In this crossover area, the area of 5G as it applies to IoT, the 5G specs are still being defined. This is an important point to consider since it is expected that that new IoT clients that will need support 5G will require new hardware. With the specs still being ratified, these IoT clients are still at least 2 years out and will require new silicon/hardware.
Carrier managed
Enterprise owned

20. Obrigado