In my view, "core network operator" loosely can be interpreted as
the
"mobility service provider", i.e., the operator that owns the
user.
Junghoon>> For clarification, the more accurate interpretation
about the feature of the mobility service provider is its having a mobility
management entity like HA in case of MIP.
[Ajay] I guess you
are treating the "core network operator" as the "core transport operator",
whereas, I was in fact treating "core operator" as the "home operator"
including owning HA in case of MIP.
However, if one has to look at the most general case of the
entities
involved in providing a service to an end host they would be as
follows:
- Access Service Provider
- Mobility Service Provider
- "Services"
Provider
Junghoon>> Well, I am not so sure about the above
categorization.
I am more inclined to the definition from the IETF draft
that was indicated from the previous message. :-)
Each of the above typically has some level of
Authentication/Authorization functionality and depending on the
the
network some of these AA functionalities may be optional at an
implementation/deployment level.
Also, these Authentication/Authorization functions could be delegated to
an independent entity. However, in the current networks typically this
is
not delegated. Bottomline, the most general case could involve six
independent entities.
Considering that AA functionality may be integrated by the provider,
three entities may still be involved.
Junghoon>> Back to the main issue of which operator information we
would expose in IEs...
I am not still questioning to myself about the
feasibility and effectiveness of exposing the _core_ operator's information
to IEs.
How can a MIH Information Server gather the core operators'
information depending on the varying mobile nodes and can pick up the right
information for a specific mobile node? Do we have to depend on the seed
information like NAI in case of AAA?
Moreover, what benefit can a mobile
node expect by receiving the core operator's information in terms of
seamless handover?
Any thoughts?
Best Regards,
-Junghoon