MOBILITY ROBUSTNESS OPTIMIZATION FOR HETEROGENEOUS AND SMALL CELL NETWORKS

Methods, systems, and devices are described for mobility robustness optimization. A network may be organized into base station clusters, and mobility information may be exchanged within the cluster. Each base station may then receive statistics based on the collected information. In some examples th...

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Bibliographic Details
Main Authors DAS SOUMYA, CELEBI SAMEL, SONG BONGYONG, HWANG INSOO
Format Patent
LanguageEnglish
Published 26.11.2015
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Summary:Methods, systems, and devices are described for mobility robustness optimization. A network may be organized into base station clusters, and mobility information may be exchanged within the cluster. Each base station may then receive statistics based on the collected information. In some examples the cluster mobility statistics are used to generate a handover transition matrix identifying a probability of a UE remaining with a target base station within the cluster for a threshold period following a handover from a source base station that is also within the cluster. Based on the cluster mobility statistics, the base station may determine that the probability of the UE remaining with the potential target base station for the threshold period is low. The base station may then select an alternative handover target. The base station may then adjust the mobility parameters of the UE in order to direct it to the alternative handover target.
Bibliography:Application Number: US201414283527