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

02Videos

Video demonstrations

All videos

3 min 44 s

Video · 3 min 44 s

Case studies: three RF investigations

Degraded 5G throughput on an urban route, uplink noise rise on a shared DAS, pilot pollution on a high floor: three investigations replayed in AKCELL Analyzer, from symptom to verification after correction.

2 min 13 s

Video · 2 min 13 s

Overview of AKCELL Mobile and AKCELL Analyzer

Both products on their actual screens: real-time measurement, radio events detected live and fleet control in AKCELL Mobile; indoor walk test replayed on a floor plan, synchronized replay, low-throughput causes and before/after comparison in AKCELL Analyzer.

2 min 18 s

Video · 2 min 18 s

An end-to-end measurement campaign

The four steps of a campaign with AKCELL: prepare the fleet, measure (measurement screens, network tests, indoor), analyze in AKCELL Analyzer down to the root cause, then deliver the report.

03Technical notes

Measurement and analysis methods

All technical notes

Technical note · Method · Optimization

Throughput root cause analysis: an eight-rule method

Assign each second of degraded throughput its first verified cause, from the most fundamental to the finest: method, thresholds and interpretation pitfalls.

6 min · October 11, 2026

Technical note · Method · Indoor

4G/5G DAS acceptance testing: the criteria that matter

Level, quality, dominance, leakage, uplink: set the criteria before the walk, lay out a repeatable route, avoid the pitfalls of acceptance testing.

6 min · October 11, 2026

Technical note · Method · Voice

VoLTE: reading a call in the traces, from precondition to release cause

A VoLTE call is read across three threads at once — radio, SIP and RTP. Setup with preconditions, release causes, perceived quality and audit KPIs.

5 min · October 11, 2026

Technical note · Announcement · Product

Launch of AKCELL Mobile and AKCELL Analyzer

Overview of the two products: 4G and 5G measurement on commercial off-the-shelf smartphones controlled as a fleet, trace post-processing and cause attribution.

3 min · October 11, 2026

Contact

Demos, quotes and measurement campaigns

Demo on your own devices and traces, quotes, indoor or outdoor measurement campaigns, trace analysis and expert reports.

Request a demo Talk to an RF engineer