Neighbor List Optimization

Neighbor List Optimization

Many neighbors’ audits are addressed to enhance the performance of GSM/UMTS/LTE Networks and the inter-operability between these technologies. The existing and missing neighbors’ lists are analyzed by our experts using TEMPO. Recommendations to remove/add neighbors are provided to define the best neighbor list for each cell. The offered audits not only target intra-frequency and inter-frequency relations, but optimizes the inter radio access technology (IRAT) relations as well.

Smooth mobility between different technologies is maintained by optimizing the IRAT relations. TEMPO recommends the optimum list to be defined to all cells based on a well-studied algorithm. On the other hand, reselection neighbor lists like UMFI/BA List are optimized to reduce the reselection time in idle mode. This is done by defining the optimum list of neighbors to the cell, which leads to higher penetration and better voice quality. These audits include: 

Distance range distribution

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Number of (Incoming/outgoing) Neighbors per cell

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Missing co-sites relations

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Missing bi-directional relations

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Neighborhood consistency between carriers

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Distant neighbors analysis

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Unmonitored neighbors analysis

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Missing Neighbors addition recommendations

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Remove unused neighbors recommendations

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Reprioritize neighbors

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New cell neighbors definition

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IRAT neighbors recommendations

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UMFI List recommendations

Key benefits 

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Increasing call continuity resulting from smooth mobility between LTE, 3G, and 2G Minimize the manual handling of neighbor relations. Improve the performance of the air interface through Neighbor List (NL) optimization.

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Reduce dropped call rate and handover failure rate.

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Improve call quality and system performance.

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Neighbor List Manager (NLM)

Neighbor List Manager (NLM)

TEMPO-NLM module minimizes the manual handling of neighbor relations through analyzing the existing and missing neighbors’ lists. NLM also gives recommendations to remove/add neighbors in order to define the best neighbor list for each cell. Optimizing networks to ensure that customers receive a consistent quality of service, regardless which technology is a priority for every operator (i.e. GMS, UMTS and LTE). Smooth mobility between different technologies implies better call continuity and customer experience. This can be achieved by implementing different tools such as: Inter-system Handover optimization, 4G/3G/2G Automatic Neighbor Update and SIB11 Calculator. Main Features 

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Dealing with different types of neighbor lists; Inter system, Intra system, IRAT and UMFI/BA lists Different strategies for neighbors’ assignment.

Neighbors analysis including:

o Distant neighbors analysis o Unmonitored neighbors analysis o Number of (Incoming/outgoing) Neighbors per cell o Neighborhood consistency between carriers and technologies

Neighbor List Manager (NLM)

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Neighbor list update recommendations including:

o Missing Neighbors o Missing co-sites relations o Missing bi-directional relations o Remove unused neighbors o Reprioritize neighbors o Review automatic neighbors (ANR) settings / performance 

New cell neighbors definition

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Generating fixing commands

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Neighbors Map Visualization