3GPP2 C.S0033-A section 8.4.3.5 specifies :
When the access terminal under test is in the Connected State and a 100% packet activity is required (see Fixed Settings , Forward Packet Activity), the access network equipment shall conform to the following rules for the generation of packets:
The test set implements this requirement but allows for the percentage of packets directed to the AT under test to be varied. The
AT Directed Packets
specifies what percentage of the packets are directed to the AT under test. This parameter can be set between 0 and 100%, in 1% increments. The default value is 50%. The
AT Directed Packets
is displayed on the
Call Setup
screen in the
Application Configuration
window.
If the AT under test has enough processing power to receive more than 50% of the valid FTAP or FETAP test packets, you can increase the AT Directed Packets parameter and speed up PER testing, optimizing throughput. For more description on the FTAP or FETAP, see C.S0029 Test Application Specification Description (TAP/ETAP) .
AT Directed Packets
must not be greater than 50%, and
RTAP Rate
must be set to 9.6 kbps.
In order for the R-ACK Channel to be active, you must set
ACK Channel Bit Fixed Mode Attribute
to on, and set
AT Directed Packets
to a non-zero value.
In the
Lab Application
, when the
Session Application Type
is set to the
Default Packet Application
, the
AT Directed Packets
will determine the maximum percentage of Forward Traffic Channel packets that will be directed to the AT.
AT Directed Packets
to 100% for maximum throughout. This allows the test set to send data to the AT under test in all possible slots. Note that achieving maximum throughout also depends on other parameters of your test setup such as Window Size, TCP or UDP protocol, etc.Programming: Programming a Packet Error Rate (PER) Measurement
GPIB Command: CALL[:CELL]:APPLication:ATDPackets
Manual Operation: How Do I Change Call Parameters?
Packet Error Rate (PER) Measurement Description
C.S0029 Test Application Specification Description (TAP/ETAP)