Title
A method of assessment of LTE coverage holes.
Abstract
Analyzing coverage holes in mobile networks is still an important problem that needs to be addressed, mainly in Long-Term Evolution (LTE) networks, which have been recently deployed. However, each type of coverage hole has to be handled depending on the effect they have on the users. In particular, they are characterized by causing abnormal disconnections or inter-Radio Access Technology (RAT) handovers when there is an underlying RAT available to maintain the connection released by the LTE network at the cost of reducing the service performance. Therefore, in this paper, an approach to detect cells with coverage holes and diagnose their type and severity is proposed. Furthermore, this paper proposes a method capable of analyzing the impact each coverage hole has on the users both in LTE and in the underlying RAT at the same time. To that end, it performs an inter-technology follow-up of those users that leave LTE technology to continue their services in the underlying RAT and then quantifies the effect of the coverage hole by means of a new inter-technology indicator estimated from the mobile traces of both RATs. The proposed system has been validated using data from a live LTE network and its co-located 3G network, showing its effectiveness in detecting coverage holes and diagnosing their type.
Year
DOI
Venue
2016
10.1186/s13638-016-0733-y
EURASIP J. Wireless Comm. and Networking
Keywords
Field
DocType
Self-organizing networks, Troubleshooting, Self-healing, Root cause analysis, Diagnosis, Self-optimization
Troubleshooting,Access technology,Computer science,Root cause analysis,Computer network,Self-organizing network,Self-optimization
Journal
Volume
Issue
ISSN
2016
1
1687-1499
Citations 
PageRank 
References 
1
0.44
1
Authors
3
Name
Order
Citations
PageRank
Ana Gómez-Andrades1203.94
Raquel Barco236441.12
Inmaculada Serrano3609.79