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Chapter 5 AN100U/UX Troubleshooting
Redline Communications Inc. Confidential and Proprietary
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Table 5-7
AN100U/UX Statistical Parameters
Parameter
Description
Status Page
Uplink/Downlink
Throughput
These statistics report the amount of traffic passed sector-wide in each
direction.
You should verify that the throughput reported here matches with your
expected data rates.
Uplink/Downlink Usage
These statistics report the amount of the uplink and downlink subframes
which has been utilized. If you frequently see utilization in either direction
at 100% your sector has reached its maximum capacity for that direction.
There are a few solutions to this problem. You could change your frame
ratio to a value which provides more bandwidth in the direction which has
reached capacity.
You could also try to improve the link quality of any subscribers operating
at lower modulation rates.
Noise Level
This value is measured by the AN100U/UX during silent parts of the
uplink sub-frame. It can be used to determine whether your sector is
experiencing any uplink interference from any outside sources.
The value should normally be around -108dBm; the exact value will
depend on individual radio calibration. If a significant noise level is
detected, you should check the event log on system startup. There will
be a message there which will provide more information regarding the
potential source of the interference, possibly even its MAC address.
SS Info page
Uplink / Downlink
Modulation
These values denote the current maximum supported modulation rate
that any given subscriber is capable of. This is directly based on CINR
levels. If the modulation rate is lower than expected, efforts should be
taken to improve the link's CINR.
Uplink RSSI
This value is a measurement of the signal strength, not signal quality. If
the signal strength fades significantly from the value recorded during
installation, then the first thing to verify is antenna alignment.
It is normal for this value to be up to 8dBm above the Reference RSS;
however, try not to let the RSSI exceed -50dBm. Signals above this level
will start to have an adverse effect on link quality, and may begin
damaging the receiver.