Presentation is loading. Please wait.

Presentation is loading. Please wait.

So What’s the big deal with WiFi6.

Similar presentations


Presentation on theme: "So What’s the big deal with WiFi6."— Presentation transcript:

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


Download ppt "So What’s the big deal with WiFi6."

Similar presentations


Ads by Google