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Service Update Indicator

Service Update Indicator. Authors:. Date: 2014-03-17. Abstract. Service Update Indicator for TGaq. Background. TGai has defined the CAG – “Common ANQP Group” which allows an AP to advertise the current configuration of its ANQP information.

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Service Update Indicator

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  1. Service Update Indicator Authors: Date: 2014-03-17 Stephen McCann, BlackBerry

  2. Abstract Service Update Indicator for TGaq Stephen McCann, BlackBerry

  3. Background • TGai has defined the CAG – “Common ANQP Group” which allows an AP to advertise the current configuration of its ANQP information. • When the ANQP information changes, the CAG number is incremented (or changed) • CAG is defined as an IE and can be Tx in the AP’s beacon, or pulled within a new 11ai ANQP-element. Stephen McCann, BlackBerry

  4. Extend for Services • The CAG is extended to include all “Advertisement Protocols” of which ANQP is only one. • CAG is renamed “Common Advertisement Group” to minimize changes from 11ai. • Therefore CAG can be re-used as a Service Update Indicator Stephen McCann, BlackBerry

  5. CAG Number element • 11ai • 11aq Stephen McCann, BlackBerry

  6. Advertisement Protocol IDs • 0 = Access Network Query Protocol (ANQP) 0 • 1 = MIH Information Service 1 • 2 = MIH Command and Event Services Capability Discovery 2 • 3 = Emergency Alert System (EAS) 3 • 4 = RLQP (i.e. TGaf Registered Location Protocol) • 5 = Service Transaction Protocol Stephen McCann, BlackBerry

  7. Service Update Indicator Behavior • CAG – “Common Advertisement Group” which allows an AP to advertise the current configuration of its Advertisement Protocol information. • When the Advertisement Protocol information changes, the CAG number is incremented (or changed) • Extends CAG functionality for TGaf RLQP servers. • Note: may extend to cover multiple messages, if AP supports more than one Advertisement Server. Stephen McCann, BlackBerry

  8. CAG Number element: Option 2 • 11ai • 11aq Stephen McCann, BlackBerry

  9. CAG Number element: Option 2 Stephen McCann, BlackBerry

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