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

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

3. 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
IEEE MAC
IEEE802.11　PHY
IEEE a/b/g/j/n

4. 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

5. Details of functional components (2/3)
802.11s Mesh Security
Goal: Providing security and privacy in s mesh
Requirements discussion items
Association and authentication
Key distribution
Confidentiality
Integrity
Availability
Others
MAC/MLME Enhancements for s 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

6. 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 s 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 s mesh networks and for interfacing s mesh networks with other networks
Items for configuration and management:
What parameters should be self-configured within the scope of s?
What parameters should be out-of-scope of s?
Types of internetworking
L2 bridging
L3 gateways and routing

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

8. Proposed Next Steps
Define and adopt major functional components for s
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

9. Backup

10. 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