Swap & modernization rollout
U Mobile is converting and modernizing live 4G sites so users can move onto the new 5G configuration — one site at a time, across the country.
When U Mobile swapped and modernized its 4G sites for 5G, someone had to prove the traffic actually moved. I built HW-LTE-Traffic-Volume — a daily tool that verified the migration sector by sector and drove the field follow-up.
U Mobile is one of Malaysia's major mobile operators. The 5G rollout runs on a swap & modernization (Swap & Mod) workstream: live 4G sites are converted or modernized so their users can move onto the new 5G configuration.
U Mobile is converting and modernizing live 4G sites so users can move onto the new 5G configuration — one site at a time, across the country.
A site that changes configuration does not prove its users moved. If traffic does not shift, something is wrong — coverage, steering, or the activity itself.
Daily automated traffic-volume monitoring of every activity site, a clear >20% migration rule, and a shared follow-up list owned by the field PICs.
I owned the measurement side of the workstream — from building the tool to keeping the daily list actionable for the field.
Designed and built HW-LTE-Traffic-Volume end-to-end — the data rules, the filters, and the two regional dashboards.
Owned the full daily run for ten weeks: 23 monitoring cycles, every report verified before it was posted to the operations channel.
Kept the shared work-site list moving with the regional field PICs (SR, NR, Central, Eastern) — from daily updates to same-day defect action.
A daily traffic-volume monitoring and verification tool built for the Swap & Mod workstream. Every morning it answers one question: did the users on each activity site actually move?
Sector-level LTE traffic volume for every site in the swap & modernization list, measured before and after each activity.
Sectors whose traffic reduced by more than 20% after the activity are flagged: the reduction is the signal that users have moved to the new configuration. Anomalies — for example a site stuck under optimization while still losing traffic — are flagged separately for action.
Sectors already in the modernization tracker are excluded, and critical sites carrying customer comments are removed, so the daily list only ever contains new, actionable items.
Regional dashboards for SR & NR and for Central & Eastern, posted to the operations channel before the start of the workday, with the shared work-site list kept current by the regional field PICs.
One automated run per day, published before the field starts work.
Sector-level LTE traffic volume for the full swap/mod site list — before and after each activity.
Flag sectors where post-activity traffic reduced by more than 20% — the confirmation that users shifted to the new configuration.
Remove sectors already in the modernization tracker and critical sites with customer comments.
SR & NR and Central & Eastern dashboards go to the operations channel — every morning, same cadence.
Regional PICs update the shared work-site list and action items the same day.
The first two-region report (SR & NR, Central & Eastern) goes out — the daily cadence is established.
A site stuck under optimization for 27 days with >20% traffic loss is flagged with the trend evidence and routed for action.
Tracker-known sectors are auto-excluded from the daily list — only new, actionable detections are reported from then on.
The COPA80 site pool runs out of sites; the tool pivots to COPA90 site inputs as the next wave begins.
No more sites for 4G MOD in the KV workstream — regional PICs take over ownership of the remaining regions.
The 23rd daily cycle of the swap/mod phase is delivered, closing the monitoring window.
A sector-swap direction defect is raised through the operations channel and resolved with the field team — the channel keeps working past the swap/mod window.
Built the tool and ran the full daily cycle from 3 Jun to 5 Aug 2026 — 46 regional reports across two regions, day after day.
Replaced manual before/after traffic verification with one automated run: pull, flag, filter, publish — delivered before the start of the workday.
The daily migration evidence underpinned the KV 4G MOD workstream reaching "no more sites" on 13 Jul 2026.
Caught a 27-day optimization stall with >20% traffic loss (4 Jun) and a sector-swap direction defect (27 Aug) — both routed for same-day action.
Daily dashboards for SR & NR and Central & Eastern kept every regional field PIC working from the same list.
Tracker and comment filters kept the daily list to genuinely new items — the work-site list stayed current through two months of daily operations.
The daily LTE traffic-volume monitoring & verification tool — built for this project
Before/after traffic volume per sector for the swap/mod site list
Site-level master tracker, used as the false-positive filter
Cloud-based list kept current by the regional field PICs
Daily dashboard distribution and issue triage with the field teams
SR & NR and Central & Eastern, 3 Jun - 5 Aug 2026.
The shared list kept current through the full swap/mod phase.
27-day optimization stall (4 Jun) and sector-swap direction defect (27 Aug).
Migration data supporting the KV 4G MOD workstream close on 13 Jul 2026.