WCDMA / HSUPA · packet performance By late 2011, voice KPIs alone were no longer telling the full story. Networks could meet call setup and drop targets while users complained that data sessions felt slow, stalled, or unstable. These problems were harder to diagnose because they rarely showed up as outright failures in any single counter. Data performance fails quietly. Unlike voice, it degrades before it collapses. A call drops, and you know something is wrong. A data session retries silently and times out. The user blames the network. The dashboard stays green. What voice metrics did not cover In several WCDMA clusters, voice performance looked acceptable while packet-switched KPIs quietly degraded. High RRC connection success rates masked frequent uplink instability, excessive retransmissions, and rising interference during busy hours. Metric Voice view Data view (same cells) RRC setup success 97.8% -- within target ...
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Showing posts from October, 2011