doc IEEE 802 11 -13 1313 r 0

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 TGaq Mini Tutorial Date: 2013 -11 -13 Authors: Agenda Slide 1 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Abstract TGaq Mini-Tutorial Summary of Study Group and Task Group work to date. Agenda Slide 2 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Study Group Phase • • Started November 2012 Service Discovery concept appeared in Fall 2012 Device discovery well established GAS – – • ANQP RLQP Considered mechanisms to discover available services provided by infrastructure. – – Agenda IMS Printers Slide 3 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Development of PAR & 5 C • • • Occurred about the same time as Service Discovery groups started in the Wi-Fi Alliance. No initial intention to build on TGaq. More of a coincidental start. TGaq PAR narrowed to avoid overlaps with Wi-Fi Alliance – Agenda Specifically avoid peer to peer service discovery Slide 4 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 TGaq Scope • This amendment defines modifications to the IEEE 802. 11 standard, above the physical layer (PHY), to enable delivery of pre-association Service Discovery information by IEEE 802. 11 stations (STAs). Agenda Slide 5 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Progress to date • Use cases collected (22) – • Requirements document – • Main features of use cases at MAC layer Terminology document – • Use case analysis complete Re-using IEEE definitions where available Specification Framework Document – Agenda In progress at an early stage Slide 6 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Example Use Case • • You enter IEEE meeting hotel and want to find a printer You notice that there are two WLANs in the hotel – The hotel WLAN, with two printers associated with • • – • The Fed. Ex/Kinko’s Office WLAN with one printer associated with (not free; but has richer features such as 3 D; available 6 am-10 pm for pickup; can do Fed. Ex) You are not an IEEE staff, and – – – • Hyatt: The hotel printer (free for hotel guest and 24/7 availability) Verilan: The printer in IEEE staff office (located in a secured environment, available 9 am-5 pm to non-IEEE-staff) It is 1 pm. You are sensitive to the security. It is 9 pm. You want high-quality print-out and cost is not an issue. It is 11 pm. You are sensitive to costs. Problem is to use this information (prior to association) to allow the STA to select a network Agenda Slide 7 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Initial Proposals • Pre-association messages (PAD) – • • Container MAC protocol to carry upper layer service discovery protocols (e. g. UPn. P, Bonjour) Provisioning and configuration of service in AP – • Proxy service server connected to AP Universal identification of services – – • Likely to be based on GAS Use a hashing algorithm UUID, a reverse domain notation, a registry of service IDs, etc (interdigital bits also) Agenda Slide 8 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Proposed Architecture for 802. 11 aq • Extend 802. 11 u to support service discovery or • Define a new Service Discovery Protocol? 802. 11 Scope STA Service query protocol Not in Scope of 802. 11 AP Service ANQP… GAS Probe Extend ANQP or define new service query protocol Agenda Up-layer service discovery protocol Slide 9 Dapeng Liu (CMCC)

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Agenda Slide 10 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Recapture: Two step service discovery S 2: Detailed Service Query Based on Service Indication Services from Network STA GAS AP Service Record S 1: AP/Network Discovery + Service Indication Agenda Services from associated device Service Indication, e. g. Service Bitmap Beacon Probe STA Probe response Slide 11 Ping FANG, Huawei

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Other Concepts • Peer Service Discovery (PSDisc) design framework – – • Provisioning of Services by Associated STAs – • Registration with an AP or Proxy Server Soft. AP operation – – – • Independent mode discovery (few STAs) Server mode discovery (many STAs) Indicate provision of Internet connectivity Indicate upper layer support Lightweight and energy efficient method is desirable Pre-association discovery for neighbouring APs – Agenda Do PAD when the STA is still in association Slide 12 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Construction of Draft • • Build on Specification Framework Documents Normative text submissions considered this week Agenda Slide 13 Stephen Mc. Cann, Blackberry

doc. : IEEE 802. 11 -13/1313 r 0 November 2013 Timeline – November 2013 • • • Approval of PAR & 5 C: November 2012 Initial TG meeting: January 2013 Initial Working Group Letter Ballot: July 2014 Re-circulation Working Group Letter Ballot: November 2014 Form Sponsor Ballot Pool: May 2015 Mandatory Editorial Check: November 2015 Initial Sponsor Ballot: November 2015 Sponsor Ballot Recirculation: January 2016 Final WG/EC Approval: May 2016 Rev. Com/Standards Board Approval: May 2016 Agenda Slide 14 Stephen Mc. Cann, Blackberry