Frequency replanning
Review allocations when network evolution or interference has reduced the effectiveness of the original plan.
MEASUREMENT-DRIVEN RADIO PLANNING
Plan scarce spectrum
around real radio conditions.
Lattice uses configuration, site, performance and measurement data to model interference relationships and generate frequency, radio-identity and neighbour plans.
SITE COVERAGE & RADIO RELATIONSHIPSLATTICE
MEASURED CELL RELATIONSHIPSLATTICE
ABCDE
ABCDE
Weaker couplingStronger coupling
MEASUREMENT-DRIVEN AFP
Plan from measured
interference.
Automatic Frequency Planning balances spectrum reuse with interference, coverage, capacity, traffic, neighbour relationships and operational constraints.
Lattice uses measurement reports, traffic recordings and handover information to model those relationships. Candidate allocations are evaluated within the frequency and radio-identity rules of the target network, including PSC and PCI where applicable.
WHERE LATTICE FITS
Adapt the plan as
the network evolves.
Radio planning needs to respond to spectrum constraints, topology changes and the interference experienced by users.
Spectrum refarming
Plan the remaining network when spectrum is released from a technology or layer.
Network consolidation
Re-plan around site, carrier or capacity rationalisation and changing traffic distribution.
Topology changes
Revisit the radio plan after site additions, deletions, band changes or other material changes.
DATA & DELIVERABLES
From observed relationships
to an optimized plan.
Inputs and outputs depend on technology, vendor and project scope.
Network information
Configuration, performance, cell and site information, and frequency or radio-identity constraints.
Live-network measurements
Measurement reports, traffic recordings and handover data used to model interference.
Engineering plans
Frequency plans, PSC/PCI plans where applicable, neighbour plans and engineering outputs for controlled implementation.
THE PLANNING CYCLE
Model. Plan. Iterate.
Frequency and neighbour planning go together so that mobility relationships remain aligned with the revised radio environment.
Prepare the scope
Validate network data, establish the baseline and define planning constraints.
Measure the network
Use radio measurements, traffic and handover evidence for the target area.
Model interference
Construct the cell-to-cell interference representation used for planning.
Generate the plan
Evaluate frequency and radio-identity allocations against reuse and operational constraints.
Align neighbours
Review neighbour relationships alongside the revised radio plan.
Iterate & review
Compare candidate plans, refine constraints and obtain engineering approval.
Operator implementation & validation
Operator teams implement approved changes with backup and rollback readiness. Compare post-change performance with the agreed baseline.
ENGINEERING CONTROL
Planning that fits
the target network.
Lattice is multi-vendor and multi-technology by design. Data formats, planning constraints, frequency and identity rules, and implementation mechanisms require technology- and vendor-specific integration and mapping.
A live-network plan requires engineering review, an agreed baseline, approved implementation, rollback readiness and post-change KPI and interference comparison. Further analysis and parameter recommendations may be needed to address residual issues.
GSM / DELHI, INDIA
GSM optimization: 54% fewer radio-related customer complaints.
The objective
Improve service quality across a GSM network comprising 900 MHz and dual-band 900/1800 MHz sites.
Our approach
Delivered three cycles of automatic frequency planning and parameter optimization, addressing frequency assignments alongside cell and neighbour configuration.
REPORTED RESULTS
54%↓Fewer customer complaints
Fewer customer complaints
attributed to radio issues.
Cells meeting all KPI thresholds
A gain of 12.10 percentage points
Before66.52%
After78.62%
TCH drop rate
Lower call drop rate
Before1.06%
After0.84%
Voice NQI
Improved from −3.35 to +1.42
The engagement combined frequency planning and parameter optimization; these results reflect the overall project.
THE NEXT STEP
Make a plan for
the network you operate.
Discuss your spectrum constraints, network evolution and measurement data.