First-time-approved LLD packs for a 20-year 5G backhaul concession.
Challenge.
Boldyn Networks (formerly BAI Communications) required the full-lifecycle design for a DWDM optical bearer and high-count fibre feeding 4G/5G small cells on TfL street furniture.
Supporting all four major UK MNOs under a 20-year concession, every span had to close within a 12 km reach budget while adhering to strict Streetscape design rules.
Approach.
As Senior Fibre Design Engineer, we ran survey to IHLD, HLD, LLD and as-built: Base Station Hotel fed cluster architecture, DWDM channel plans, splice and closure schematics, chamber and gel-wrap layouts, and laterals to lighting columns, CCTV columns and bus shelters.
We streamlined the QGIS and IQGeo workflow and developed the IQGeo platform against Streetscape design rules, embedding automation and data QA in production.
Scope of work.
- Full-lifecycle DWDM optical bearer design.
- High-count fibre network design for 4G/5G small cells.
- QGIS and IQGeo workflow automation.
- Streetscape design rule enforcement and data QA.
- Production of LLD packs, BoM, and civils SLDs.
Outcome.
LLD packs covering link-loss budgets, fibre allocation, splice packs, BoM and civils SLDs, approved first time by the client.
Bring us in at survey, not at rework.
A 30-minute technical call to pressure-test route, reach and margins before anything is committed to civils.