Last updated: December 2, 2008
This section is only applicable to the EGPRS lab application.
When not using incremental redundancy (see Incremental Redundancy ), you can specify which puncturing scheme should be used for RLC block transmissions on the downlink TBF.
| Parameter | GPIB Command |
|---|---|
| Modulation and Coding Scheme | |
| Incremental Redundancy State | CALL:(PDTCH|PDTChannel):IREDundancy[:STATe] |
| CALL:(PDTCH|PDTChannel):MCSCheme:PSCHeme |
The operating mode must be Active Cell and the serving cell must be EGPRS. However, puncturing scheme parameters can be changed in other operating modes, but do not effect the test set's operation until the operating mode is changed to Active Cell.
The puncturing scheme parameter is applicable to all connection types except ETSI A.
Incremental redundancy must be turned off before changes to the puncturing scheme are allowed.
To avoid invalid puncturing scheme settings for selected modulation and coding schemes, any change to the
Downlink Modulation Coding Scheme
parameter causes the
Puncturing Scheme
to be reset to
PS1
. This reset also occurs in the situation where
Downlink Modulation Coding Scheme
has been set to
As Uplink
and a change is made to the
Uplink Modulation Coding Scheme
parameter.
If you attempt to use an invalid puncturing scheme, the test set returns the following error: "
Data out of range
".