UMTS Interview Questions with Answers(150 Questions)
TCH Availability Definition
TCH Availability indicates the ratio of the number of available TCHs
to the number of configured TCHs in a measurement period. In the
case of dynamic conversion between TCH and PDCH, the number
of configured TCHs refers to the number of dynamically configured
TCHs, that is, the actual number of TCHs after dynamic conversion.
TCH Availability =
Mean Number of Available Channels (TCHF)/Mean Number of
Dynamically Configured Channels (TCH) x 100%
RSSI and RTWP
What is a CE (Channel Element) in WCDMA?
Layer 3 Messages and 3G Events
LTE Signalling Troubleshooting and Optimization ebook
TCH Availability is one of resource utilization KPIs. When TCH availability is low,
available TCHs may be insufficient for voice services even if sufficient TCHs are
dynamically configured. Thus, TCHs are heavily congested and the access success rate
is decreased. In addition, user experience is adversely affected
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Level 1 Users
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what is the target/threshold you are using in your network please.
what is the normal threshold to used as per the standard if any