Planning saves time and money, and often large amounts of both. All radio spectrum operators are concerned about spectrum efficiency – ensuring the maximum return for the minimum outlay. Planning a network with the fewest number of base stations to meet service requirements, is the way to do that whether the network is local, regional or national.
Modeling prevents a question from becoming a problem. A question may be whether a proposed new service can be slotted into a spectrum space without causing interference. Modelling can produce an answer before anybody has suffered the consequences.
ATDI automated frequency planning module is used by operators worldwide across all types of networks. The module is based on sophisticated optimization techniques (automatic frequency planning and optimization of TRX allocation vs. interference conditions) and features advanced features such as the allocation of frequency hopping parameters, intermodulation product, multi layers analysis, inter system interference, neighbor list and user-definable constraints. These capabilities allow the automatic frequency planning, even in a dense urban area. ATDI has signficiant experience with this kind of optimization, and is expanding its customer relationships.
The propagation models used by the ATDI tool generates coverage with a high level of accuracy with or without the automatic digital map tuning module. Similarly, improvements can be made at the calibration stage to improve the final AFP result (if drive test measurement files are available).
Planning commences with clearly understanding of the user requirement. A user requirement identifies the service the user expects in terms of time, space and service. In space, the requirement defines precisely which geographic areas are to be covered. In time, defines the way the user expects the network to evolve. In service, the specification may define the call types to be supported, and the service for packet transmission or the data throughput.
Planning starts when the user expresses the user requirement electronically in a planning tool, and then adding infrastructure. The specification normally includes performance parameters such as path availability, confidence in achieving a particular connectivity and limits to intra-network interference for given spectrum blocks. At any stage the plan can be compared against the requirement.
Once a satisfactory plan has been developed on-screen, it can be exported to allow infrastructure to be costed, revenue determined and metrics developed to show return on investment. ATDI offer a unique service – the automatic planning of networks using a goal-seek algorithm. This means that large networks can be defined and costed in days.
Modeling makes networks effective even in the planning stage. If an operator wants to understand spectrum co-existence, they may want to know to what extent it can be application-specific, and whether licence-exempt devices can satisfactorily share with licensed networks in the urban environment. By outlining the relevant networks in a modelling tool, scenarios can be developed for the operation of various devices and the degree of interference between the devices and networks can be determined – all without a single base station being constructed.
A network operator might also wish to know how many sites are needed for national coverage with two different spectrum block sizes and two different network deployment strategies. This can be modeled by auto-planning a series of networks; curves are drawn for coverage versus site count for a variety of traffic loadings. This is repeated for different block sizes, resulting in a series of curves. From this, the number of sites needed for coverage can be determined.
Modeling is a powerful way of producing evidence to support or refute research questions. Tell us your question and we’ll give you the answer.
• Technical specifications
• Requirement modeling
• Equipment and technology determination
• Service integration
• Customised network planning
• Help desk support
• Featuring the latest ITU propagation models
• Cloud integration
• Site surveys
• Database integration and migration
Some examples of services provided by ATDI:
Automatic cell planning and optimization featuring:
• Antenna azimuth optimization – improving coverage in a specific area
• Antenna tilt optimization – improving existing coverage and/or reducing interference
• Antenna model selection – improving coverage and/or reducing interference
• Antenna height optimization – improving coverage and/or reducing interference
• Selecting ‘best’ equipment – Huawei, NSN, Ericsson…
• Adding new sites or sectors with before & after coverage plots
• Locating repeaters or new sites to resolve (outdoor/indoor) coverage or traffic issues
• Network configuration to minimize the field strength risk exposure
• Power optimization
• BSIC, scrambling code, neighbor list planning (avoid risks of HO failures)
Drive test measurement:
• Calibrates and performs drive tests, FS measurements and spectrum analysis
• Collecting data (layer 3 messages) and analysing the inconsistencies
• Provides recommendations to correct the inconsistencies such as dropped calls due to low signal strength, missing neighbors, poor RX quality, handover failures, interference issues, radio failures on old Channel in HO, Transcoder Failures….)
• Accessibility (call set-up success rate)
• Retainability (dropped calls)
• Mobility (handover success rate)
• Integrity (BLER and throughput)