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Solution

Post-processing and root cause analysis

Decode traces, link each degradation to its position, measurements and messages, and establish its cause.

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Products

Products used

AKCELL Analyzer: real screen

Post-processing and root cause analysis

AKCELL Analyzer

Post-processing software: synchronized replay, decoded signaling, event engine, low-throughput causes, before/after comparison, benchmarking and reports.

  • Signaling
  • 40+ event types
  • 8 rules
  • Before/after
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Case studies

Related case studies

  • 5G SA · n78
  • Drive test

Degraded 5G throughput on an urban route: three causes, three actions

Interference from an overshooting cell, rank stuck at 1 due to a faulty RF branch, a coverage edge: low-throughput cause analysis separates the three and quantifies the gain from the corrections.

Median DL throughput over the route
220becomes424 Mbit/s
DL layers on the repaired sector
1becomes4
Pilot pollution alerts
6becomes0
  • LTE · band 20
  • Indoor · DAS

Uplink noise rise on a shared DAS: diagnosing passive intermodulation

Excellent downlink coverage, an uplink that collapses at times: three tests at a stationary point and one correlation are enough to identify passive intermodulation before any technician is dispatched.

UL throughput, simultaneous test
1.0becomes15.5 Mbit/s
PUSCH transmit power
23becomes11 dBm
Correlation of DL throughput with UL power
0.93becomes−0.37
  • 5G SA · n78
  • Indoor · high floor

High floor: restoring 5G DAS dominance over the macro cells

On the 14th floor, the indoor cell does not dominate at the façades: the floor plan colored by SINR, the delta to the best neighbor and the cell inventory identify the macro cells involved, then validate the added antennas.

Median SINR on the floor
7becomes20 dB
Median DL throughput
160becomes714 Mbit/s
Pilot pollution alerts
2becomes0