Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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CMU-K20/K21/K22/K23/K24
GPRS Signalling and EGPRS
1115.6088.12 4.199 E-12
Fig. 4-90 Connection Control – Network
Network
Support
The
Network Support
parameter is to report to the MS under test whether or not the
CMU currently supports GPRS or EGPRS; see
Network Support
softkey on p. 4.92 .
Remote control
CONFigure:NETWork:NSUPport GSM | GGPR
Main Service
The
Main Service
parameter selects the circuit switched or packet data connection
scheme of the MS under test. It is equivalent to the
Main Service
softkey described
on p. 4.92 .
Remote control
[:SENSe:]NETWork:MSERvice
Network Identity
The
Network Identity
section contains parameters characterizing the radio network
(see also section
Network Parameters (Connection Control – Network)
on p. 4.169
ff. One of them is specific to the packet data mode:
RAC
Routing Area Code, set to 0. The RAC identifies the routing area
within a location area.
Remote control
CONFigure:NETWork:IDENtity:RAC <RAC>
Packet Data
The
Packet Data
section contains parameters defining the traffic data channel
coding schemes and the GPRS test mode (see
Service Selection
softkey on p.
4.192 ):
Coding Scheme
Selection of the coding schemes for downlink traffic data
channels: Coding schemes
CS1
to
CS4
for GPRS (with option
CMU-K42); modulation and coding schemes
MCS1
to
MCS9
for
EGPRS (with option CMU-K43)
.
The GPRS coding schemes
can be used to establish a TBF connection with full signalling;
they are independent from the reduced signalling coding
schemes selected via
Traffic Mode
(see p. 4.170 ).
Puncturing Sch.
Puncturing scheme applied to each of the EGPRS modulation
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