Last updated: February 26, 2012
This section is only applicable to the lab application.
The 1xEV-DO system supports packet data connections to a public or private data network using either mobile IP or simple IP protocol. Only a brief definitions for the simple IP and mobile IP protocols are provided here. For details, see 3GPP2 P.S0001-B Version 2.0 standard.
The
Session Application Type
can be set to
or
Default Packet Application
or
M-Flow Packet Application
Enhanced M-Flow Pkt
App before an access terminal (AT) initiates a packet data connection.
The test set supports packet data connection using simple IP protocol via it's internal PDSN simulation (see
Packet Data Network Emulation in the Test Set
). To use the test set's internal PDSN simulation, the
External PDSN State
must be set to
Off
(see
Data Channel Parameters
). In this case, the AT's PPP connection is terminated by the test set, propagating the encapsulated IP packets directly to the ethernet interface (LAN port).
An example procedure for packet data connection using simple IP is described in Packet Data Service Example Procedure (via Simple IP) .
The test set provides two ways to support mobile IP protocol tests required to ensure compliance with the TIA/EIA-IS-835 standard. One way is by working together with an external PDSN (MOB-IP-SIM) provided by the Software Concepts, Inc. The other way is a simple way just to use Mobile IP Support in the test set.
A typical connection diagram between the test set and the MOB-IP-SIM is shown in the figure below.
Both the simple IP and mobile IP protocols are implemented in the MOB-IP-SIM. For details on the MOB-IP-SIM functionality and configurations, see the MOB-IP-SIM technical manual available on the web:
http://www.softwareconceptsinc.net/MIP-5850.html
If the external MOB-IP-SIM is providing PDSN simulation, the test set will forward the PPP octets delivered by RLP data to the external MOB-IP-SIM. The MOB-IP-SIM is responsible for actual termination of the PPP link and interpreting all protocol layers necessary to pass the end-to-end encapsulated IP packets directly onto the network (IP, UDP, MIP).
The
Session Application Type
can be set to
or
Default Packet Application
M-Flow Packet Application
or
Enhanced M-Flow Pkt App
before an AT initiates a packet data connection. To work with the External MOB-IP-SIM, the test set must be properly configured (see
Data Channel Parameters
). An example procedure for packet data connection using mobile IP is described in
Packet Data Service Example Procedure (via Mobile IP)
.
As the external MOB-IP-SIM only includes the logging of higher layer protocols (such as IP, UDP, MIP), it cannot display those messages of the lower protocols (for example, SLP, RLP, etc.). These air interface messages can be logged using the Wireless Protocol Adviser (WPA) (see Protocol Logging ).
The test set also provides Mobile IP support without any external devices. Its work model can be described as follows. The test set processes the reverse Mobile IP related messages (MIP Agent Solicitation, MIP Registration Request) from Mobile Station and generate corresponding forward Mobile IP messages (MIP Agent Advertisement, MIP Registration Reply) to Mobile Station in order to pass the Mobile IP negotiation. After the Mobile IP negotiation, the DUT IP Address is assigned as Home Address to the DUT and the DUT use this IP address to do IP packet data transferring. For most of the Mobile IP related parameters in the forward Mobile IP messages, the test set uses either the fixed settings in the test set or the related parameter values gotten from the corresponding reverse Mobile IP messages.
Here the packet data service means DPA/MFPA/EMPA call.
When
External PDSN State
is
Off
,
Internal Mobile IP State
has effect. Switch the
Internal Mobile IP State
to
On
, the test set works in Mobile IP mode, in which
Home Agent Shared Secret (Hex)
must be consistent with the value configured in the DUT, otherwise, Mobile IP negotiation will fail. Switch the
Internal Mobile IP State
to Off, the test set works in Simple IP mode.
When
External PDSN State
is
,
Internal Mobile IP State
has no effect. In this case, the simulation of data network is provided by MOB-IP-SIM instead of the test set.
On
Compared with a DUT working with MOB-IP-SIM, the performance of data throughput between the test set and a DUT configured using Mobile IP can be greatly improved. This difference can be observable in Data Throughput Monitor measurement.
Packet Data Service Example Procedure (via Simple IP)
Packet Data Service Example Procedure (via Mobile IP)