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Fully Coded 3GPP W-CDMA Personality Users and Programming Guide 1-3
ESG Family Signal Generators The Fully Coded W-CDMA Personality
Option 200 Overview
DPCH The dedicated physical channel contains a time multiplex of a dedicated
physical data channel (DPDCH) and a dedicated physical control channel
(DPCCH). Refer to Figure 1-1.
This downlink mode supports slot formats 0–16 for DPDCH channels with editing
capability.
Within the DPCCH channel, the transmit power control (TPC) field enables the user to
select a pattern of commands to vary the power level and also has trigger output capability.
In addition, user arbitrary pattern files are supported. The transport format combination
indicator (TFCI) accepts 10 bit user inputs (default value 0000000000).
The user can configure up to four QPSK W-CDMA channels simultaneously or the required
synchronization channels (PSCH, SSCH, CPICH, PCCPCH) on a single ESG. The actual
number of channels supported on a single ESG depends upon the selected channel types
and their associated power levels.
The two-ESG configuration combines the baseband outputs to support both data and
synchronization channels. See “Two ESG Downlink Measurement Setup” on page 2-6.
Using two ESGs, a stimulus can be provided to perform bit error rate analysis of user
equipment (UE) designs based on the requirements outlined in the 3GPP specification.
Baseband signals are combined to provide the required 3GPP conformance test channels.
The amplitude and carrier frequency of each ESG are independent to allow for adjacent
channel selectivity, intermodulation response rejection, and blocking tests. With the same
configuration, two phones can be tested simultaneously for increased throughput.
Figure 1-1 Example Downlink DPCH Coding
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