Wireless Communication and Networks Applications of Wireless Communication Wireless Communication Technologies Wireless Networking and Mobile IP Wireless Local Area Networks Student Presentations and Research Papers Understanding Wi-Fi networking in Windows 8 http://web.uettaxila.edu.pk/CMS/AUT2012/teWCNms/

Understanding Wi-Fi networking in Windows 8 5/21/2018 1:37 AM HW-342T Understanding Wi-Fi networking in Windows 8 http://channel9.msdn.com/events/BUILD/BUILD2011/HW-342T Drew Baron Lead Program Manager Microsoft Corporation © 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Agenda Wi-Fi power, performance and experience improvements Connected Standby Wi-Fi device connectivity You’ll leave knowing: How to create high-quality Wi-Fi hardware and drivers that take advantage of new Windows 8 features How Windows 8 enables connectivity experiences for new form factors and customer scenarios

Trends shaping wireless landscape Explosion of form factors PCs that are always connected to the internet Ubiquitous Wi-Fi ability on PCs On-battery is becoming a norm

Connecting with Windows 8 Simplified User Experience Smart about Networks Robust platform for differentiation

Low-power, fast and simple Wi-Fi connectivity

Power improvements in Windows 8 Windows 8 will reduce power consumption from Wi-Fi Wi-Fi devices are more autonomous: Automatic power save mode Reduction in host CPU interrupts Packet coalescing Wi-Fi Service Wi-Fi Service Driver Driver Wi-Fi Device Wi-Fi Device

Instant Connect Windows 7 Windows 8 People expect to be able to pick up a device and use it immediately Innovating with hardware Network list offloading Focus very precisely on software paths Optimizing Reducing timing Identifying Wi-Fi Service Wi-Fi Service Driver Driver Wi-Fi Device Wi-Fi Device

demo Instant Connect

Greatly reduced connection time + + + seconds © 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Experience improvements Customers don’t want to think about getting connected they want to be connected Windows 8 gracefully transitions between various networking technologies Windows 8 includes integrated Radio Management

Connecting to the right network Radio Management demo Connecting to the right network Radio Management

Connected Standby

Connected Standby New Windows power state available on PCs The PC’s screen is off, but the device remains in a very low idle state The network adapter maintains a connection to the network Metro style apps continue to receive live tile updates and toast notifications Background Tasks and Push Notifications enable customers to receive real-time communication, such as email, IM and VoIP calls

Wi-Fi offloading for Connected Standby Device offload enables Connected Standby Keep network connected while CPU/SoC is in deepest idle state Achieved by offloading functionality to Wi-Fi device Wi-Fi devices support wake patterns and power-save capabilities Wi-Fi driver does auto-power save mode (PSM) Wake patterns used for Push Notifications Windows 8 PC Core Chipset/SoC Memory Wi-Fi Storage

Push Notifications during Connected Standby Metro style real-time apps can receive push notifications while in Connected Standby mode Real-time apps register TCP connections to servers via RTC Trigger APIs Windows 8 helps ensure network connection to servers aren’t dropped Servers send notification packets to clients when their attention is needed Very energy efficient! E-Mail E-Mail Messaging SMS … ! Windows 8 NIC Network Server !

Wi-Fi Direct http://www.wi-fi.org/discover-and-learn/wi-fi-direct

What is Wi-Fi Direct ? Is a peer-to-peer connectivity technology Provides a secure, wireless connection between two devices Does not require a Wi-Fi router or joining a Wi-Fi network In Windows 8 Wi-Fi Direct Builds on existing Wi-Fi hardware Allows concurrent connection to internet & devices Is optimized for power savings Supports native scenarios such as Play To and Proximity

Windows Certification for Wi-Fi devices

Certification for Wi-Fi Scenario Feature Certification for Wi-Fi Connected Standby Wake, Network List Offload Windows 8 creates new customer expectations for Wi-Fi-based experiences Certification for Wi-Fi enables you to deliver high-quality hardware and drivers Developed and tested with feedback from partners Certification for Wi-Fi is tailored for systems that support Connected Standby Instant Connect Network List Offloading Power Interrupt Reduction Power Packet Coalescing Power USB Selective Suspend Power Wi-Fi Auto Power Save Mode Flight Mode Radio Management Play To, Proximity Wi-Fi Direct Basics 802.11n, 802.11w (PMF – Enterprise security)

Recap

In summary Windows 8 connects to Wi-Fi networks quickly and efficiently Windows 8 enables connectivity while in Connected Standby Wi-Fi direct on Windows 8 delivers new device connectivity experiences

Call to action Provide high quality networking hardware and drivers that support new Windows 8 features Work with Wi-Fi inbox team to get your driver inbox Use Windows Certification for Wi-Fi to ensure quality, compatibility and interoperability for drivers Use Windows Update for driver serviceability

Related sessions [732] Connecting Windows 8 to mobile broadband and Wi-Fi networks [331] Understanding mobile broadband and connection Management in Windows 8 [329] Building great Wi-Fi Direct Devices [456] Understanding Connected Standby [566] Networking for Connected Standby [260] Windows Certification: Improvements to the Logo Program

Further reading and documentation Wi-Fi Direct (WFD) Reference Windows Hardware Dev Center Windows Dev Center Contact info – windowswireless@microsoft.com

5/21/2018 1:37 AM © 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION. © 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.