1 / 16

MCCAOP Advertisements

MCCAOP Advertisements. Authors:. Date: 2010-11-10. Abstract. This presentation explains the concepts and motivation of the proposed changes for the MCCAOP advertisment as given in 11-10/814. # MCCAOP Reservations. The draft allows for 65535 tracked MCCAOP reservations at a mesh STA.

agardner
Télécharger la présentation

MCCAOP Advertisements

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MCCAOP Advertisements Authors: Date: 2010-11-10 Michael Bahr, Siemens AG

  2. Abstract This presentation explains the concepts and motivation of the proposed changes for the MCCAOP advertisment as given in 11-10/814. Michael Bahr, Siemens AG

  3. # MCCAOP Reservations • The draft allows for 65535 tracked MCCAOP reservations at a mesh STA. • Example for lots of MCCAOP reservations at a mesh STA: Michael Bahr, Siemens AG

  4. # Tracked MCCAOP Reservations at Mesh Gate • # flows in network f = s * m * #flows/STA • MCCAOPs at G is: • f (NG) + f (GN) • f (MN) + f (NM) • m + n + 1 for Beacons Michael Bahr, Siemens AG

  5. Mesh STA A • This is Mesh STA “Dallas”. • It is MCCAActivated (is true) • Mesh STA “Dallas” has to track its own MCCAOP reservations (TX-RX and broadcast times) as well as the MCCAOP reservations of its neighbor mesh STAs (interfering times). Michael Bahr, Siemens AG

  6. MCCAOP Advertisement Set • Mesh STA „Dallas“ has to advertise its tracked MCCAOP reservations. • The set of tracked MCCAOP reservations a mesh STA wants to advertise, whether complete or partial, is called „MCCAOP Advertisement Set“. • An MCCAOP Advertisement Set can be complete. • An MCCAOP Advertisement Set can be partial. Michael Bahr, Siemens AG

  7. at the transmitter side can send only new or changed MCCAOP reservations can send only selected tracked MCCAOP reservations partial MCCAOP Advertisement Sets reduce size of MCCAOP advertisements complete MCCAOP Advertisement Set deletes non-advertised reservations at the receiver side complete MCCAOP Advertisement Set: replaces all MCCAOP reservations previously received from the same transmitter with the latest MCCAOP advertisement. non-advertised MCCAOP reservations are deleted partial MCCAOP Advertisement Set: advertised MCCAOP reservations can be only added or updated. non-advertised MCCAOP reservations must not be deleted. Partial vs. CompleteMCCAOP Advertisement Set Michael Bahr, Siemens AG

  8. Partial Reports • concept of partial/complete is also valid for reports (TX-RX, broadcast, interfering) • TX-RX and broadcast report are complete. TX-RX / broadcast report of previous advertisement are replaced. Non-advertised TX-RX and broadcast times are deleted. • Interfering report is partial. MCCAOP reservations are appended or updated. No Interfering time can be deleted. Michael Bahr, Siemens AG

  9. MCCAOP Advertisements Element • MCCAOP Advertisement Set is encoded in MCCAOP Advertisements element • mesh STA can track many reservations • potentially up to 65535 • MCCAOP Advertisements element can hold only up to 62 MCCAOP reservations • Mechanism for splitting MCCAOP Advertisement Set over multiple MCCAOP Advertisements elements provided Michael Bahr, Siemens AG

  10. MCCAOP Advertisement Set Sequence Number: tuple <MCCAOP Advertisement Set Sequence Number, transmitter of MCCAOP Advertisement element> uniquely identifies MCCAOP advertisement set identifies MCCAOP Advertisements elements that belong together Advertisements Element Identifier identifier of MCCAOP Advertisements elements belonging to the same MCCAOP advertisement consecutive sequence: starts at 0, incremented by 1 Last Advertisements Element indicates last MCCAOP Advertisements element in the consecutive sequence MultipleMCCAOP Advertisements Elements Michael Bahr, Siemens AG

  11. Frames with MCCAOP Advertisements Elements • MCCAOP Advertisements frame • MCCAOP Advertisements elements of the same MCCAOP advertisement set • Beacon frame • only one MCCAOP Advertisements element at a time • MCCAOP advertisement sets that require multiple MCCAOP Advertisements elements are transmitted in multiple subsequent Beacon frames • reduces beacon bloat • Probe Response frame • sent only once, but already full of bytes • only one MCCAOP Advertisements element, maybe partial MCCAOP advertisement set (most important MCCAOP reservations) Michael Bahr, Siemens AG

  12. Distributed Report subfield • Scope of Distributed Report subfield: • type of report (TX-RX, broadcast, or interfering) • MCCAOP Advertisments element • indicates whether a TX-RX, broadcast, or interfering report is distributed over multiple MCCAOP Advertisements elements (of the same MCCAOP advertisement set) or not • if not (Distributed Report subfield is equal to 0): • it is sufficient to consider only this MCCAOP Advertisements element in order to know all MCCAOP reservations of this report (TX-RX, broadcast, or interfering) • receiver can update its tracked MCCAOP reservations even if it did not receive all MCCAOP Advertisements elements of the MCCAOP advertisement set (for instance, when missing a beacon) Michael Bahr, Siemens AG

  13. Specification of MCCAOP Advertisements Element Michael Bahr, Siemens AG

  14. Specification of MCCA Information Field Michael Bahr, Siemens AG

  15. Specification of MCCAOP Reservation Report Field Michael Bahr, Siemens AG

  16. References • 11-10/814r1 „MCCAOP Advertisements“ • contains normative text implementing these ideas • IEEE 802.11s D7.02 Michael Bahr, Siemens AG

More Related