Rohde & Schwarz CMU-K20, Operating Manual

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CMU-K20/21/22/23/24 Options and Extensions
1115.6088.12 6.213 E-12
PROCedure:SIGNalling:PDATa:ACTion <Action>
GPRS Signalling Control
<Action>
Description of parameters Def. value Def. unit FW vers.
SOFF |
SON |
CTMA |
CTMB |
CRA |
CRSignalling |
CDLonly |
CBLer |
DISConnect |
HANDover |
CRES |
CREA
Switch off BCCH signal
(signal off)
Switch on BCCH signal
(signal on)
Connect Test Mode A
Connect Test Mode B
Connect Reduced Signalling Mode A
Connect Reduced Signalling Mode B
Connect Downlink only
Connect Block Error Rate (BLER)
Disconnect
Dual-band handover (to target network defined via
CONFigure:HANDover:TARGet)
Connect reduced signaling EGPRS symmetrical
Connect reduced signaling EGPRS asymmetrical
– – V3.05
V3.40
Description of command Sig. State
This command has no query form. It changes between the different packet data signalling states of
the CMU. The current state can be queried via
SIGN:PDAT:STAT?
See
below
Important Note: Signalling States and Local to Remote Switchover
The default signalling state of the CMU in remote control is SOFF (see Fig. 6-2 below ). This
state is automatically reached on switchover from manual to remote control; an existing
connection to the MS under test is dropped.
To suspend this default behavior of the CMU, the base system command
SYSTem:GTRM:COMP
has been introduced.
SYSTem:GTRM:COMP OFF
prevents the instrument from changing the
signalling state local to remote switchover. In particular, an existing connection is maintained.
The default behavior of the CMU is restored each time the instrument is rebooted. For more
information see the documentation of the base system commands in the CMU manual.
OFF
ATT
TEST
AIPR
CTBF
SON
IDLE
MS Attach
MS Attach
MS Detach
MS Detach
DIPR
SOFF
CTMA/CTMB/CRA/
CRS/CDLonly/
CBLer
DISConnect
SOFF
SOFF
CTMA/CTMB/CRA/CRS
/CBLer/CDLonly
Default
Fig. 6-2 GPRS signalling states of the CMU and transitions
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