User`s guide

Agilent PXT Wireless Communications Test Set
User’s Guide
46
Power Adjust (DCI3A)
The value selected under this setting (−1 or 1) adjusts the UL Transmit power of the UE, when the DCI
Format selected is 3A.
Selecting DCI 3A is only possible if the scenario file contains a tpc-PDCCH-ConfigPUSCH information
element, with a tpc-Index value set to transmit the appropriate type of DCI message. Like those DCI
formats described above, a single DCI message is sent upon pressing the Send Message menu key.
You must set Func > UE Power Control > DCI Format to 3A, to enable this
function.
DCI 3A messages only have two power adjustment values because they contain
only one TPC bit. This is unlike DCI 0, DCI 1A, and DCI 3 messages.
Key Path: Mode >BSE > Func > UE Power Control
CLPC
(Closed Loop Power Control)
Accesses the CLPC menu keys that enable you to specify the UE power and maintain the level within a
settable tolerance range. This UE power control is maintained throughout the duration of the UE
connection.
LTE requires that there are two separate power control loops:
• One for PUSCH
• One for PUCCH
Refer to Closed Loop Power Control – More information.
Mode
BSE
Dependencies and/or Couplings UE must be connected for settings below to be implemented.
Sets Atten > Attenuation = Adaptive
Initial S/W Revision
6.4
Key Path
Mode > BSE > Func > UE Power Control
Closed Loop Power Control – More information
To further understand how CLPC functions, follow the example below.
1. Ensure that All Up and All Down are both = Off.
(Func > UE Power Control > Power Adjust (All Up) and Func > UE Power Control> Power
Adjust (All Down) are both = Off
.) This is a requirement in order to enable CLPC. Refer to
“Important
” note above about moving from Power Adjust (All Down) = On to Power Adjust (All
Down) = Off.