This section is only applicable to the lab application and to a test application with the required feature license.
In Active Cell operating mode and IS-856 Test operating mode, the
Release A Physical Layer Subtype
allows you to select the physical layer subtype protocol when the
Protocol Rel
is set to protocol release
A (1xEV-DO-A)
.
The protocol release A (1xEV-DO-A) supports both the new Subtype 2 physical layer and the original Subtype 0 physical layer as supported by the protocol release 0 (1xEV-DO). By default, the
Release A Physical Layer Subtype
is set to Subtype 2 physical layer for the protocol release A (1xEV-DO-A).
The Subtype 2 physical layer provides more functionality than the Subtype 0 physical layer. For details, see Key Enhancements in Subtype 2 Physical Layer Relative to Subtype 0 .
In Active Cell operating mode, the test set negotiates with the AT on the physical layer subtype during Session Negotiate State . As shown in the table below,
Protocol Release | Connection State | |
---|---|---|
A (1xEV-DO-A) | Idle State (session not open) | Subtype 0 |
Session Open or Connected | Depends on the setting of Release A Physical Layer Subtype | |
0 (1xEV-DO) | Does not matter | Subtype 0 |
The current physical layer subtype indirectly determines the associated application layer protocols and the MAC Layer protocols being configured in the test set, as shown below.
Associated Application Protocol |
|
|
|
Associated MAC Layer Protocols |
|
||
The Subtype 2 forward link physical layer has several modifications relative to the Subtype 0 physical layer:
The Subtype 2 reverse link physical layer is quite different from that of Subtype 0 physical layer:
Release A Physical Layer Subtype
results in a session re-negotiation. If a connection is open, changing the
Release A Physical Layer Subtype
results in the connection dropped with signaling. You will have to re-open the connection. For details, see
Session Negotiate State
.
Default Packet Application
when
Protocol Rel
is
A (1xEV-DO-A)
and
Release A Physical Layer Subtype
is
Subtype 2
.GPIB Command: CALL[:CELL]:PROTocol:PLAYer