Invention Grant
- Patent Title: Method and apparatus for handover in heterogeneous cellular networks
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Application No.: US15092274Application Date: 2016-04-06
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Publication No.: US10178596B2Publication Date: 2019-01-08
- Inventor: Chandra Sekhar Bontu , Yi Song , Zhijun Cai
- Applicant: BlackBerry Limited
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Fish & Richardson P.C.
- Main IPC: H04W36/24
- IPC: H04W36/24 ; H04W36/00 ; H04W56/00 ; H04W72/04 ; H04W36/08 ; H04W72/14 ; H04W76/19

Abstract:
A method at a user equipment for handover from a serving cell to a target cell, the method sending a measurement report to the serving cell; and transmitting a reconfiguration complete message to the target cell; wherein the measurement report includes downlink timing measurements for the target cell. Further, a method at a source network element for handover of a user equipment from the source network element to a target network element, the method receiving a measurement report from the user equipment; sending a handover request to the target network element; receiving a handover request acknowledgement from the target network element, the handover request acknowledgement including a reconfiguration message and at least one downlink subframe in which an uplink grant is expected at the target network element for the user equipment; and forwarding the reconfiguration message and at least one downlink subframe to the user equipment.
Public/Granted literature
- US20160219484A1 METHOD AND APPARATUS FOR HANDOVER IN HETEROGENEOUS CELLULAR NETWORKS Public/Granted day:2016-07-28
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