Suggested Major Functional Components for 802.11s W. Steven Conner, Intel Corp. Koji Omae, NTT DoCoMo July 13, 2004

Defining major functional components Why discuss major functional components for 802.11s Mesh? The scope of TGs is larger than average 802.11 TG To generate requirements in a reasonable timeframe, may be helpful to break functionality into manageable but interrelated components

Possible Major Functional Components for 802.11s Configuration/ Management Internetworking Interfaces IEEE802.11s Amendment .11s Mesh Network Measurement Layer 2 Mesh Routing and Forwarding .11s Mesh Security MAC/MLME enhancement for .11s Mesh IEEE802.11 MAC IEEE802.11　PHY IEEE802.11 a/b/g/j/n

Details of functional components (1/3) Layer 2 Mesh Routing and Forwarding Goal: Defining L2 routing protocol that provides: L2 unicast, broadcast, multicast delivery across the mesh Efficient radio-aware route selection Ability to interface to networks outside of the .11s mesh Requirements discussion items: Routing algorithms Radio-aware routing metrics Reaction to topology change Overhead/convergence time Topology discovery GW discovery Others

Details of functional components (2/3) 802.11s Mesh Security Goal: Providing security and privacy in 802.11s mesh Requirements discussion items Association and authentication Key distribution Confidentiality Integrity Availability Others MAC/MLME Enhancements for 802.11s Mesh Goal: Improve MAC efficiency and operation for mesh Requirements discussion items: Managing hidden/exposed terminals Beacon collisions Flow forwarding and scheduling efficiency (throughput and latency) MAC parameter tuning QoS support

Details of functional components (3/3) 802.11s mesh network measurement Goal: Providing multi-hop neighborhood radio resource measurements Requirements discussion items: Definition of resource statistics required by mesh routing protocols and other functions 11k extensions and enhancement for 802.11s mesh How to exchange information between Mesh Points/Mesh APs Others Interfaces for Configuration / Management (CM) & Internetworking Goal: Providing interfaces for configuration and management of 802.11s mesh networks and for interfacing 802.11s mesh networks with other networks Items for configuration and management: What parameters should be self-configured within the scope of 802.11s? What parameters should be out-of-scope of 802.11s? Types of internetworking L2 bridging L3 gateways and routing

Generating categorized requirements Functional requirements Component 1 Functional Components Evaluation / Comparison Criteria Component 2 Component 3 Compile requirements for functional components in parallel

Proposed Next Steps Define and adopt major functional components for 802.11s Are there additional major functional components that should be added? Define detailed requirements for each major functional component Can be done in conjunction with usage model process

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Adding functional components to the proposed Usage Model Process Parameters For Requirements Functional Requirements Initial Requirements Prioritize/ Merge Qualitative Requirements Evaluation Criteria Call For Proposals Component1 Usage Models Component2 Quantitative Requirements Component3 Category 1 Category 2 Category 3 Simulation Scenarios Iteration / Feasibility Check