Merged Access Unit Framework April 2008 doc.: IEEE 802.11-08/0496r0 April 2008 Merged Access Unit Framework Date: 2008-04-28 Authors: Darwin Engwer, Nortel Networks Darwin Engwer, Nortel Networks

April 2008 doc.: IEEE 802.11-08/0496r0 April 2008 Abstract This presentation illustrates a framework for combining two 802.11 access units into a single device. Darwin Engwer, Nortel Networks Darwin Engwer, Nortel Networks

April 2008 doc.: IEEE 802.11-08/0496r0 April 2008 Logistics Please view in slideshow mode to see the animations, which are an important part of the presentation. For prerecorded audio to accompany this presentation please refer to http://tinyurl.com/6gw8yh Darwin Engwer, Nortel Networks Darwin Engwer, Nortel Networks

Outline Introduction/ Caveats WLAN System Architecture April 2008 Outline Introduction/ Caveats WLAN System Architecture Access Unit Device Top level Component detail (drill down sequence) Merging two access units into one device Conclusion References Darwin Engwer, Nortel Networks

Introduction/ Caveats April 2008 Introduction/ Caveats An illustration – for illustrative purposes only. An example to demonstrate the architectural framework in which this merged framework can be constructed. Represents a sample implementation of a device. Not the only implementation approach or the best approach, just an approach. Purpose is to show the components within and the relationship between those components in a consistent architectural framework. Darwin Engwer, Nortel Networks

April 2008 802.11 WLAN System [1] Darwin Engwer, Nortel Networks

Remember Equivalent AP Syntax [1] April 2008 doc.: IEEE 802.11-08/0496r0 April 2008 Remember Equivalent AP Syntax [1] Darwin Engwer, Nortel Networks Darwin Engwer, Nortel Networks

1 April 2008 Non-802.11 LAN / AN Access Unit (device) STA Darwin Engwer, Nortel Networks

2 April 2008 Non-802.11 LAN / AN Access Unit Portal DS AP ACM_STA STA Darwin Engwer, Nortel Networks

3 April 2008 Non-802.11 LAN / AN Access Unit Portal DS AP ACM_STA ACM_MAC PHY STA Darwin Engwer, Nortel Networks

Beacons/Probes Authen. April 2008 4 Non-802.11 LAN / AN STA ACM_MAC Access Unit Portal DS AP ACM STA PHY Data Handling Mgmt (inc. SSID) Data fwd Beacons/Probes Authen. CA/NAV CSMA MPDU CTRL MMPDU MLME/ SME MAC SAP PHY SAP Data Movement: -Queues -Filters/Gating BSS Mgmt: -Association -SSID Medium Access and Control BSS Identity = SSID Addressable (BSSID) Non-addressable MAC Identity = BSSID Darwin Engwer, Nortel Networks

Beacons/Probes Authen. April 2008 5 Non-802.11 LAN / AN STA ACM_MAC Access Unit Portal DS AP ACM STA PHY Data Handling Mgmt (inc. SSID) Data fwd Beacons/Probes Authen. CA/NAV CSMA MPDU CTRL MMPDU MLME/ SME MAC SAP PHY SAP SSID Addressable (BSSID) Non-addressable Darwin Engwer, Nortel Networks

6 April 2008 SSID Addressable (BSSID) Non-addressable X SSID Non-802.11 LAN / AN STA ACM_MAC Access Unit Portal DS AP ACM STA PHY Data Handling Mgmt (inc. SSID) Data fwd Beacons/Probes Authen. CA/NAV CSMA MPDU CTRL MMPDU MLME/ SME MAC SAP PHY SAP SSID Addressable (BSSID) Non-addressable X Non-802.11 LAN / AN STA ACM_MAC Access Unit Portal DS AP ACM STA PHY Data Handling Mgmt (inc. SSID) Data fwd Beacons/Probes Authen. CA/NAV CSMA MPDU CTRL MMPDU MLME/ SME MAC SAP PHY SAP SSID Addressable (BSSID) Non-addressable Y Darwin Engwer, Nortel Networks

7 April 2008 X Y SSID SSID Addressable (BSSID) Non-addressable Non-802.11 LAN / AN X Non-802.11 LAN / AN Y Access Unit Portal Portal DS DS AP AP ACM STA ACM_MAC MAC SAP ACM STA ACM_MAC MAC SAP Data Handling Data Handling Mgmt (inc. SSID) SSID MLME/ SME Mgmt (inc. SSID) SSID MLME/ SME Data fwd Addressable (BSSID) Non-addressable Beacons/Probes Authen. Data fwd Addressable (BSSID) Non-addressable Beacons/Probes Authen. CA/NAV CSMA CA/NAV CSMA MPDU CTRL MMPDU MPDU CTRL MMPDU PHY SAP PHY SAP PHY PHY STA STA Darwin Engwer, Nortel Networks

8 April 2008 X Y SSID SSID Addressable (BSSID) Non-addressable Non-802.11 LAN / AN X Non-802.11 LAN / AN Y Access Unit Portal Portal DS DS AP AP ACM STA ACM_MAC MAC SAP ACM STA ACM_MAC MAC SAP Data Handling Data Handling Mgmt (inc. SSID) SSID MLME/ SME Mgmt (inc. SSID) SSID MLME/ SME Data fwd Addressable (BSSID) Non-addressable Beacons/Probes Authen. Data fwd Addressable (BSSID) Non-addressable Beacons/Probes Authen. CA/NAV CSMA CA/NAV CSMA MPDU CTRL MMPDU MPDU CTRL MMPDU PHY SAP PHY SAP PHY STA STA Darwin Engwer, Nortel Networks

9 April 2008 X Y SSID SSID Addressable (BSSID) Addressable (BSSID) Non-802.11 LAN / AN X Non-802.11 LAN / AN Y Access Unit Portal Portal DS DS AP AP ACM STA ACM STA ACM_MAC MAC SAP ACM_MAC MAC SAP Data Handling Data Handling Mgmt (inc. SSID) SSID MLME/ SME Mgmt (inc. SSID) SSID MLME/ SME Data fwd Addressable (BSSID) Beacons/Probes Authen. Data fwd Addressable (BSSID) Beacons/Probes Authen. CA/NAV CSMA Non-addressable MPDU CTRL MMPDU PHY SAP PHY STA STA Darwin Engwer, Nortel Networks

10 April 2008 X Y SSID SSID Addressable (BSSID) Addressable (BSSID) Non-802.11 LAN / AN X Non-802.11 LAN / AN Y Access Unit Portal Portal DS DS AP AP ACM STA ACM STA ACM_MAC MAC SAP ACM_MAC MAC SAP Data Handling Data Handling Mgmt (inc. SSID) SSID MLME/ SME Mgmt (inc. SSID) SSID MLME/ SME Data fwd Addressable (BSSID) Beacons/Probes Authen. Data fwd Addressable (BSSID) Beacons/Probes Authen. CA/NAV CSMA Non-addressable MPDU CTRL MMPDU PHY SAP PHY STA STA Darwin Engwer, Nortel Networks

April 2008 Conclusion In merged devices the PHY and the non-addressable portion of the MAC can be shared. The unique components are the addressable portion of the MAC/ BSSID, the SSID, data handling, AP, DS and portal to the corresponding non-802.11 LAN/ AN [2]. Darwin Engwer, Nortel Networks

April 2008 References 1. IEEE Std. 802.11-2007 Cl. 5 General Description 5.2.5 Integration with non-802.11 LANs Figure 5.6 Connecting to other IEEE 802 LANs [shows portal] Annex N AP Functional Description Figure N.4 High-level UML entity diagram for the WLAN system Figure N.5 AP UML composition diagram (alternate syntax) 2. 11-04-1225-08 AP Function Summary Darwin Engwer, Nortel Networks

Revisions r0 – 2008-04-28 For first presentation to TGv, TGu. April 2008 Revisions r0 – 2008-04-28 For first presentation to TGv, TGu. Darwin Engwer, Nortel Networks

April 2008 Backup Slides Darwin Engwer, Nortel Networks

11 April 2008 X Y SSID SSID Addressable (BSSID) Addressable (BSSID) Non-802.11 LAN X Y Access Unit Portal VLAN Tagger Portal DS DS AP AP ACM STA ACM STA ACM_MAC MAC SAP ACM_MAC MAC SAP Data Handling Data Handling Mgmt (inc. SSID) SSID MLME/ SME Mgmt (inc. SSID) SSID MLME/ SME Data fwd Addressable (BSSID) Beacons/Probes Authen. Data fwd Addressable (BSSID) Beacons/Probes Authen. CA/NAV CSMA Non-addressable MPDU CTRL MMPDU PHY SAP PHY STA STA Darwin Engwer, Nortel Networks

April 2008 Darwin Engwer, Nortel Networks