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Performing a handover in a heterogeneous wireless network

  • US 9,225,449 B2
  • Filed: 02/01/2013
  • Issued: 12/29/2015
  • Est. Priority Date: 05/11/2012
  • Status: Active Grant
First Claim
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1. A method for performing a handover in a heterogeneous wireless network (HetNet), comprising:

  • receiving, at an anchor serving cell in the HetNet, channel measurement reports made by a user equipment (UE) for a plurality of cells, wherein one or more of the channel measurement reports is initialized using one or more UE-specific Radio-Resource-Control-configured parameters instead of one or more cell-specific parameters that use a physical cell ID of a specific cell, to enable the UE to avoid performing Radio-Resource reconfiguration when a change in transmission point (TP) from the anchor serving cell to a target TP has occurred;

    sending a TP change request that is based, in part, on the channel measurements for the UE, from the anchor serving cell to the target TP, wherein the target TP is located in one of the plurality of cells; and

    sending a TP change indicator from the anchor serving cell to the UE to indicate the change in TP with which the UE will communicate via an air interface.

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