1. Coexistence study subgroup
Meeting Report
Coexistence study subgroup

2. Goal of study subgroup Definition of Convergence scope
Convergence Levels
Coexistence, Interworking, Converged standard
Convergence Criteria
Physical convergence requirements
Conversion topologies for coexistence and interworking (scenarios)
Terminal, Network
Gather technical solutions for interworking
Evaluation of solutions based on requirements
Produce Baseline document

3. Scope
Conversion should concentrate layer 2 and layer 1 according to OSI model
Assumptions
802.11a which includes
HiperLAN 2
(HiSWANa)
Usage of the same spectrum

4. Working Assumption: Convergence level definitions
Coexistence
Communicating entities using a, HiSWANa or HiperLAN 2 can operate in the same coverage area without harmful interference. No communication between entities adhering to the different standards necessarily takes place.
Interworking
Systems or components, possibly from different origins, working together to perform some task. Interworking depends crucially on standards to define the interfaces between the components. The term implies that there is some difference between the components which, in the absence of common standards, would make it unlikely that they could be used together. [Webster’s]
Unified standard
- To make into or become one standard; consolidate. [Webster’s]

5. Terms Communicating entities
- Elements that are capable of communication
Standards of interest: Published standards
802.11a
HiperLAN 2
HiSWAN,
Standard enhancements
Extension of standards as defined above

6. Teleconference Jan 9th Criteria documents How to merge documents
Coexistence
Interworking
Converged Standard
How to merge documents
Question of common spectrum
Clarifications of working procedures

7. Planned activities
Merge criteria documents and create baseline document (editing)
Select one convergence level
Discuss technical proposals
Encourage contributions