Installation guide

94
Cisco uBR7200 Series Universal Broadband Router Wireless Modem Card and Subsystem Installation and Configuration
78-6030-03
Command Reference
Note Up to 1024 32-bit words are available for all timeline parameters on a single DSP. Each timeline
requires (tlsize+1) * 2 words. The attributes in in, inr, and constVariance can be captured on any
DSP, while the others can be captured only on certain DSPs. Distributing timeline requests across
DSPs provides better memory utilization.
Selecting the Correct DSP
In most cases, the default DSP should provide acceptable results. Table 17 outlines for which DSPs the
statistical parameters are most meaningful.
Note When changing from 12 MHz to 6 MHz mode, the DSP on which the parameter is defined may no
longer be valid. If so, redefine the timeline on a DSP where the parameter is meaningful.
Syntax Description
Table 17 Statistical Parameters and Meaningful DSPs
Statistical Parameter
Antenna-Specific
Parameter
DataMeaningful on
DSP (12 MHz)
Data Meaningful on
DSP (6 MHz)
Received Power Yes rx3b rx2b
Gain Settings IF Yes rx3b rx2b
Gain Settings RF Yes rx3b rx2b
Total Gain Yes rx3b rx2b
Interference + Noise Dual Antenna
Required
Any rx DSP rx1a, rx1b, rx2a, rx2b
Interference + Noise Ratio Dual Antenna
Required
Any rx DSP rx1a, rx1b, rx2a, rx2b
Constellation Variance No Any rx DSP rx1a, rx1b, rx2a, rx2b
Sync Status No rx3b rx2b
Timing Offset No rx3b rx2b
Frequency Offset No rx3b rx2b
statParam {in | inr | constVariance | timingOffset | freqOffset | syncStatus |
receivedPower | gainSettingsIF | gainSettingsRF}
in (Interference + Noise) The interference plus noise power levels are computed by
the hardware on a burst-by-burst basis.
inr (Interference + Noise Ratio) The ratio of the interference plus noise power levels
captured by the first antenna to the second antenna on a burst-by-burst basis.
This value is specified as a log to base 2 number.
Note This parameter is available for a dual antenna system only.