 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| – |
M-ES:
user device, mobile, identified by at least one
|
|
|
|
globally
unique Network Entity Identifier (NEI)
|
|
|
| – |
IS:
basically a router, might provide additional services
|
|
|
| – |
MD-IS:
only entity that has knowledge of mobility,
|
|
|
|
runs
MNLP (Mobile Network Location Protocol):
|
|
|
|
n |
each
M-ES belongs to a fixed home area, MHF keeps track of
|
|
|
this
information
|
|
|
|
n |
MSF
handles packet transfer services for visiting M-ES
|
|
|
|
n |
requires
that M-ES register with serving MD-IS when roaming
|
|
| – |
MDBS:
supports air interface to M-ES
|
|
|
|
n |
resides
at the AMPS cell
|
|
|
|
n |
uses
AMPS transmit and receive equipment
|
|
