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11af architecture

11af architecture. Authors:. Date: 2011-05-09. This presentation provides general architecture and procedures for TVWS band Clarification on the terminologies Remaining issues to be resolved. Abstract. GDC Enabling STA

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11af architecture

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  1. 11af architecture Authors: Date: 2011-05-09 Eunsun Kim, LG Electronics

  2. This presentation provides • general architecture and procedures for TVWS band • Clarification on the terminologies • Remaining issues to be resolved Abstract Eunsun Kim, LG Electronics

  3. GDC Enabling STA • Shall have a geo-location capability and internet connection to the Authorized Geo-location Database (AGDB) • Mode II or Fixed devices in FCC term. • Transmits enabling signals • Provide available channel list to the GDC Dependent STA • Transmits Contact Verification Signal Terminologies – GDC Enabling STA Eunsun Kim, LG Electronics

  4. GDC Dependent STA • Allowed to transmit over –the-air only after having the enabling signal from the GDC Enabling STA • GDC dependent STA is required to transmit its FCC ID prior to get the available channel list from the GDC enabling STA • FCC ID and the available channel list are required to be secure • A GDC Enabling STA and a GDC dependent STA shall have a secure association before the GDC dependent STA transmit the Channel Availability Query Request (CAQ), where FCC ID is convey to the GDC enabling STA • CAQ procedure shall be performed anytime it is needed • GDC dependent STA receives CVS from the GDC enabling STA who enabled it Terminologies – GDC Dependent STA Eunsun Kim, LG Electronics

  5. Beacon frame containing in-band enabling IE • Enabling Signal is any beacon frame that has in-band enabling IE • Upon receipt of beacon frame having the in-band enabling IE, GDC dependent STA is allowed to put energy over-the-air • Frames that the GDC dependent STA can transmit after receiving the enabling signal are association/authentication request • After having association and authentication process, GDC dependent STA shall transmit CAQ request frame with FCC ID in it Terminologies – GDC In-band Enabling Signal Eunsun Kim, LG Electronics

  6. General Procedure – Case I Eunsun Kim, LG Electronics

  7. General Procedure – Case II Eunsun Kim, LG Electronics

  8. Fixed STA or Mode II without having direct internet connection • They have the capability to be GDC enabling STA • However, before establishing a internet connection, they must operate like a mode I device, GDC dependent STA • After getting enabled and having internet connection via another GDC enabling STA, it talks to the database using the established internet connection • Having its own WSM at its location, it can act as a GDC enabling STA General Procedure – Case II Eunsun Kim, LG Electronics

  9. General Procedure – Case III Eunsun Kim, LG Electronics

  10. In case of presence of RLSS (Registered Location Secure Server) • Interface between the GDC Enabling STA and the ADB is out of scope of the 11af • Interface between the GDC Enabling STA and RLSS is out of scope of the 11af • However, we only define the containers to be transmitted to the RLSS or the AGDB from the GDC Enabling STA in order to get the channel list General Procedure – Case III Eunsun Kim, LG Electronics

  11. Need of RLQP • One of the reason we have 11u GAS in the draft is that GAS frame is transmitted even without association • Because of the security requirement, any request frame for getting enablement in TVWS must be transmitted after secure association • GAS Initial Request frame in TVWS cannot be transmitted from a GDC dependent STA without having any association with the GDC enabling STA Issues to be resolved (1) Eunsun Kim, LG Electronics

  12. Issues to be resolved (2) Eunsun Kim, LG Electronics

  13. Separate connection to the GDC enabling STA for the purpose of the enablement and the BSS operation • Shall we mandate that a GDC enabling STA is the serving AP of a GDC dependent STA, where the GDC enabling STA granted an enablement to the GDC dependent STA? Issues to be resolved (2) Eunsun Kim, LG Electronics

  14. Is any STA transmitting beacon which is not an enabling signal always a GDC enabling STA? • Are the IBSS or ad-hoc mode supported in TVWS band? • All of the member of IBSS shall transmit beacon during the awake period of the IBSS • In an IBSS, internet connections are not assumed for each STA • Beacon from the IBSS member cannot allow to transmit over the air Issues to be resolved (3) Eunsun Kim, LG Electronics

  15. Issues to be resolved (3) Eunsun Kim, LG Electronics

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