Enhanced Handover Procedure
First Claim
1. A handover method for redirecting an ongoing communication of a connected cellular device from a serving cell to a target cell, both cells belonging to a network, wherein the method comprises:
- (a) receiving, in the cellular device, a cell attenuation measurement,(b) receiving, in the cellular device, a supplemental hysteresis parameter which value depends on the load of the target cell,(c) receiving, in the cellular device, a threshold parameter,(d) comparing, in the cellular device, an additive combination of the cell attenuation measurement, of a hysteresis parameter and of the supplemental hysteresis parameter with the threshold parameter, and(e) sending a measurement report from the cellular device to the network depending on the result of the comparison, if the result of the comparison remains positive during a given duration.
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Abstract
The invention relates to a handover method for redirecting an ongoing communication of a connected cellular device (UE) from a serving cell (SRV_C) to a target cell (TGT_C). Both cells (SRV_C, TGT_C) belong to a network. The method comprises receiving, in the connected cellular device (UE), a cell attenuation measurement, a supplemental hysteresis parameter which value depends on the load of the target cell (TGT_C), and a threshold parameter. The method comprises comparing, in the connected cellular device (UE), an additive combination of the cell attenuation measurement, of a hysteresis parameter and of the supplemental hysteresis parameter with the threshold parameter. The method comprises sending, from the connected cellular device (UE), a measurement report to the network, if the result of the comparison remains positive during a given duration. The invention also relates to a cellular device (UE) and to a computer program implementing the aforementioned method.
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Citations
13 Claims
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1. A handover method for redirecting an ongoing communication of a connected cellular device from a serving cell to a target cell, both cells belonging to a network, wherein the method comprises:
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(a) receiving, in the cellular device, a cell attenuation measurement, (b) receiving, in the cellular device, a supplemental hysteresis parameter which value depends on the load of the target cell, (c) receiving, in the cellular device, a threshold parameter, (d) comparing, in the cellular device, an additive combination of the cell attenuation measurement, of a hysteresis parameter and of the supplemental hysteresis parameter with the threshold parameter, and (e) sending a measurement report from the cellular device to the network depending on the result of the comparison, if the result of the comparison remains positive during a given duration. - View Dependent Claims (2, 3, 4, 5, 6, 13)
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7. A cellular device comprising a handover module for redirecting an ongoing communication from a serving cell to a target cell, both cells belonging to a network, wherein the handover module is set to:
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(a) receive a cell attenuation measurement, (b) receive a supplemental hysteresis parameter which value depends on the load of the target cell, (c) receive a threshold parameter, (d) compare an additive combination of the cell attenuation measurement, of a hysteresis parameter and of the supplemental hysteresis parameter with the threshold parameter, and (e) send a measurement report to the network depending on the result of the comparison, if the result of the comparison remains positive during a given duration. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification