System and method for uninterrupted communication across black spots for multi interface mobile nodes

摘要

A system and method for protection against loss of communication of a mobile node crossing a black spot region is disclosed. The system to prevent loss of communication with the mobile node consists of a mobile node, RF coverage map generator, black spot predictor, and a vertical handover process. The mobile node can experience uninterrupted communication across black spots. This is achieved by executing vertical handover before entering a black spot region, which is anticipated by using RF coverage maps and mobility pattern of the mobile node.

主权项

1. A system, comprising:
a processor to:
provide, based on network environment information, a radio frequency (RF) map comprising (i) information on signal strength throughout a coverage region associated with a first point of attachment for a first network, and (ii) terrain information indicative of tactile signal obstacles within the coverage region associated with the first point of attachment for the first network;predict, based on the RF map that includes (i) the information on signal strength throughout the coverage region associated with the first point of attachment, and (ii) the terrain information indicative of tactile signal obstacles within the coverage region, a black spot region for a first communication node connected to the first point of attachment for the first network; andcontrol a handover of a communication session of the first communication node from the first network to a second network based on the predicted black spot region, wherein the communication session is between the first communication node and a second communication node, and the communication session of the first communication node is handed over from the first network to the second network while maintaining the communication session between the first communication node and the second communication node, and wherein the black spot region comprises a region wherein a first receiver signal strength associated with the first point of attachment is lower than a signal strength threshold and a second receiver signal strength associated with a second point of attachment of the second network is greater than the signal strength threshold.