When the test set is configured to the Test Application Protocol (TAP) (see
Test Application Configuration
) and a data connection is established (
Connected State
) in the Active Cell operating mode, the
Test Application Protocol
setting determines if RTAP (Reverse Test Application Protocol) or FTAP (Forward Test Application Protocol) is enabled for controlling the test.
The RTAP configures the TAP (0x0003) for testing of the AT's transmitter while the FTAP configures the TAP (0x0003) for testing of the AT's receiver. See C.S0029 Test Application Specification Description (TAP/ETAP/MCTAP) .
The
FTAP Parameter Assignment
message and
RTAP Parameter Assignment
message are both sent to the access terminal to configure the TAP (0x0003) when a TAP data connection is established. The
FTAP Parameter Assignment
message is always sent first. What attributes are included in these messages and the test set behavior depend on the current
Test Application Protocol
and
Limited TAP
settings.
| Test Application Protocol =FTAP | Test Application Protocol =RTAP | |||
|---|---|---|---|---|
| Limited TAP = Off | Limited TAP = On | Limited TAP = Off | Limited TAP = On | |
| DRC Value Fixed mode |
If DRC Value Fixed Mode Attribute is set to on, then the DRC Value Fixed Mode attribute is sent (DRC Value Fixed Mode is enabled). The DRC Value field is set to FTAP Rate . If DRC Value Fixed Mode Attribute is set to off, then the DRC Value Fixed Mode attribute is NOT sent (DRC Value Fixed mode is NOT enabled). |
The DRC Value Fixed Mode attribute is NOT sent (DRC Value Fixed mode is NOT enabled). | ||
| DRC Cover Fixed mode | DRC Cover Fixed Mode attribute is NOT sent (DRC Cover Fixed mode is NOT enabled). Since there is only one sector in the test set, there is no need to fix the DRC Cover. The DRC Cover for the test set is sent in the Traffic Channel Assignment message. | |||
| ACK Channel Bit Fixed mode |
If ACK Channel Bit Fixed Mode Attribute is set to on, then the ACK Channel Bit Fixed Mode attribute is sent (ACK Channel Bit Fixed mode is enabled). The ACK Channel Bit is set to 1 (see Fixed Settings ). If ACK Channel Bit Fixed Mode Attribute is set to off, then the ACK Channel Bit Fixed Mode attribute is NOT sent (ACK Channel Bit Fixed mode is NOT enabled). |
|||
| Loop Back mode | Loop Back Mode attribute is sent (Loop Back mode is enabled). | Loop Back Mode attribute is NOT sent (Loop Back mode is NOT enabled). | ||
| RTAP Test Packet mode | RTAP Test Pkt Enable attribute is NOT sent (RTAP Test Packet mode is NOT enabled). | RTAP Test Pkt Enable attribute is sent (RTAP Test Packet mode is enabled). This indicates that AT is to start sending RTAP Test Packets on the reverse traffic channel. | ||
| Packet Rate Mode | Packet Rate Mode attribute is NOT sent (Configured Packet Rate mode is NOT enabled). | Packet Rate Mode attribute is sent (Configured Packet Rate mode is enabled). MinRateIndex and MaxRateIndex fields are both set according to the RTAP Rate . | ||
| Test Set Configuration | ||||
| Yes | No | |||
| Maintain Connection if TAP or Limited TAP setting Changed? | Yes | |||
The
Test Application Protocol
setting can be set at any time. Changing this setting when a TAP data connection is established will cause the TAP to re-negotiate FTAP or RTAP on the existing traffic channel.
The
Test Application Protocol
is displayed on the
Call Setup
screen in the
Application Configuration
window when the test set is configured to TAP (see
Test Application Configuration
) in the Active Cell operating mode.
GPIB Command: CALL[:CELL]:APPLication[:TAPPlication][:TYPE]
Manual Operation: How Do I Change Call Parameters?
C.S0029 Test Application Specification Description (TAP/ETAP/MCTAP)
TAP/ETAP/MCTAP Data Connection Call Flow
TAP/ETAP/MCTAP Data Connection Processing States Lifecycle