GUI Reference
R&S
®
CMW-KM750/-KM751
38
User Manual 1173.9670.02 ─ 05
Chn. Detect Threshold
Minimum signal strength of each DPCH in the TD-SCDMA signal to be detected in the
automatic channelization code search (Channel Info Mode = Auto). The threshold is
defined as a ratio of the individual DPCH power to the total power expressed in dB. The
power threshold is important to distinguish the real DPCH from unwanted signals, e.g.
noise or non-orthogonal components that may be detected as fictitious DPCHs.
A low threshold value represents a weaker selection criterion and increases the risk of
detecting unwanted signals. On the other hand a high threshold may prevent the real
DPCH signals from being detected and cause a failure of the channelization code search.
Remote command:
Switching Point
Position of the duplex switching point, separating timeslots used for uplink and timeslots
used for downlink in a subframe.
Remote command:
Scrambling Code
Cell parameters ID in the range between 0 and 7F (hex) corresponding to 0 to 127 dec-
imal. The cell parameters ID identifies the cell and determines for example the scrambling
code and the basic midamble code.
Remote command:
User Number
Maximum number of users for one timeslot. The number of users influences the used
midamble sequences.
Remote command:
Modulation Type
Selects the type of modulation: QPSK, 8PSK or 16-QAM.
Option R&S CMW-KM751 is required for 8PSK and 16-QAM.
Remote command:
SICH Enable
Defines whether the uplink signal contains a shared information channel (HS-SICH, rela-
ted to a high speed downlink shared channel). This parameter is only relevant for Channel
Info Mode "Auto". It cannot be set to "On" for Channel Info Mode "Manual".
Remote command:
Parameters and Settings
