
WCDMA Signaling
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
55
User Manual 1173.9657.02 ─ 11
2.2.14.1
TPC Pattern Setups
The R&S
CMW provides several predefined setups with different TPC patterns. Some
of these setups are fixed, some can be modified according to the needs of a specific
application. The UE power resulting from a TPC pattern sent to the UE can be mea-
sured using the "WCDMA measurement" firmware application (option R&S CMW-
KM400).
The following table provides an overview of the predefined setups. <Pattern> refers to
a user-definable bit sequence.
Pattern Setup Name
Transferred Pattern
Closed Loop
Pattern suitable to command the UE to a configured target power, fol-
lowed by an alternating pattern when the target power is reached.
The target power can be specified as total power or as DPCH power, see
Alternating
(1)010101010...
The first bit of the pattern is different from the last bit transferred before
the start of the pattern.
All 1
1111111111...
All 0
0000000000...
Single P Alternating
<Pattern>(0)101010101...
The first bit after <Pattern> is different from the last bit in <Pattern>
Single P All 1
<Pattern>1111111111...
Single P All 0
<Pattern>0000000000...
Continuous Pattern
<Pattern><Pattern><Pattern><Pattern>...
Change of TFC
Alternating pattern and algorithm 2, suitable for "Change of TFC" meas-
urements, see
Max. Power E-DCH
Pattern suitable for measurement of maximum output power with E-DCH,
see
TPC Test Step ...
see
TPC Test Steps for Inner Loop Power Control
Phase Discontinuity Up
111110000 (repeated up to 13 times, then alternating pattern)
Phase Discontinuity Down
000001111 (repeated up to 13 times, then alternating pattern)
TPC Patterns for Phase Discontinuity Measurements
Test Step UL CM
Pattern for the uplink TX conformance tests in compressed mode, see
2.2.14.2
Closed Loop TPC Setup
The closed loop TPC setup allows to command the UE to a configurable target power.
When the setup is executed, the instrument measures the UL power, sends suitable
TPC commands to the UE, measures the UL power again and so on until the target
power is reached. Then it sends an alternating pattern.
General Description
深圳德标仪器
135-1095-0799