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WCDMA Generator
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
915
User Manual 1173.9657.02 ─ 11
6.2.3.1
Reference Measurement Channel (RMC)
The data content of the 3GPP downlink RMC is defined on transport channel level
according to 3GPP TS 25.101. The data sequence to be transferred is directly fed into
the Dedicated Traffic Channel (DTCH) and the Dedicated Control Channel (DCCH).
The transport channels are channel coded, multiplexed and mapped onto a Dedicated
Physical Channel (DPCH) with variable data rate (see figure below).
The downlink reference measurement channel generated in this way is to be used for
various transmitter and receiver tests specified e.g. in 3GPP TS 25.101 and 34.121.
The following example illustrates the generation of a 3GPP reference measurement
channel from the DTCH and DCCH transport channels and lists the physical and trans-
port channel parameters for an information bit rate of 12.2 kbps. For other bit rates
refer to specification 3GPP TS 25.101.
Fig. 6-8: Generation of RMC from DTCH and DCCH
Table 6-2: RMC physical parameters (12.2 kbps)
Physical Parameter
Value
Information bit rate
12.2 kbps
DPCH
30 ksps
Slot Format number
11
TFCI
On
Power offsets PO1, PO2 and PO3
0 dB
Puncturing
14.7 %
General Description
深圳德标仪器
135-1095-0799