Last updated: January 16, 2009
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 B Physical Layer Subtype
allows you to select the physical layer subtype protocol when the
Protocol Rel
is set to protocol release
B (1xEV-DO-B)
.
The protocol release B (1xEV-DO-B) supports both the new Subtype 3 physical layer and the original Subtype supported by the protocol release 0(1xEV-DO-0) and release A (1xEV-DO-A). By default, the
Release B Physical Layer Subtype
is set to Subtype 3 physical layer for the protocol release B (1xEV-DO-B).
The Subtype 3 Physical Layer Protocol is introduced to Release B to support multiple carrier operation, which brings out higher data rates by combining multiple RF channels.
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 | |
---|---|---|
B (1xEV-DO-B) | Idle State (session not open) | Subtype 0 |
Session Open or Connected | Depends on the setting of Release B Physical Layer Subtype | |
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.
B (1xEV-DO-B) | |||
Subtype 3 Physical Layer Protocol |
|||
Associated Application Protocol |
|
|
|
Associated MAC Layer Protocols |
|
|
|
Release B Physical Layer Subtype
results in a session re-negotiation. If a connection is open, changing the
Release B Physical Layer Subtype
results in the connection dropped with signaling. You will have to re-open the connection. For details, see
Session Negotiate State
.
Test Application
when
Protocol Rel
is
B (1xEV-DO-B).
GPIB Command: CALL[:CELL]:PROTocol:PLAYer
Release A Physical Layer Subtype