Tuesday, May 18, 2010

Wimax Interfaces Naming Convention



IP network interfaces are called as core interfaces,access interfaces or PE-CE interfaces. But in WIMAX, interfaces are named as depicted belows:-
1. R1 Interface:- This is actual wireless interface which connects Mobile Subscriber to BS(Base Station).
2. R2 Interface:- This is the logical interface with CSN(Core Service Network). In case of Mobile IP.
3. R3 Interface:- Interface between ASN(Access Service Network) and CSN(Core Service Network).All the radius messages are exchanged on this interface.
4. R4 Interface:- This is the logical interface between ASN-Gty(Access Service Network). This interface is used during handovers in romaing.


5. R5 Interface:- This is logical interface between Home CSN(Core Service Network). This is used during roaming scenarios.
6. R6 Interface:- This is the physical or logical interface between BS(Base Station) and ASN-Gty.
7. R7 Interface:- This is logical/physical interface between decision point and enforcement point. Both are the parts of ASN-Gty.
8. R8 Interface:- This is logical interface between BS(Base Station). This is used during handovers from one BS to another.

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