Interpreting Radio Link Timeout Failure counter values

We are facing some call drop issues with following counters playing major role:
M3101A:Call Drops due to CONN FAIL Received on TCHF (Traffic Channel) in Stable State (Radio Link Failure) (None)
M3201A:Call Drops due to CONN FAIL Received on TCHH (Traffic Channel) in Stable State (Radio Link Failure) (None)

I further checked these couters:
S4300D:Uplink Level during Radio Link Failure (SDCCH)
S4307D:Uplink Level during Radio Link Failure (TCHF)
S4308D:Uplink Level during Radio Link Failure (TCHH)
S4310D:Uplink Quality during Radio Link Failure (SDCCH)
S4317D:Uplink Quality during Radio Link Failure (TCHF)
S4318D:Uplink Quality during Radio Link Failure (TCHH)
S4320D: Downlink Level during Radio Link Failure (SDCCH)
S4327D: Downlink Level during Radio Link Failure (TCHF)
S4328D: Downlink Level during Radio Link Failure (TCHH)
S4330D: Downlink Quality during Radio Link Failure (SDCCH)
S4337D: Downlink Quality during Radio Link Failure (TCHF)
S4338D: Downlink Quality during Radio Link Failure (TCHH)


I'm confused how to interpret the values of the above counters. For example, the value of counter S4308D for one cell is 286 dB and the value of S4318D is 75. What does that mean? How can we know the level and quality issue from those counters?

thanks