Handover method and apparatus in wireless communication system including femto cell

Handover method and apparatus in wireless communication system including femto cell

  • CN 104,768,194 B
  • Filed: 02/11/2010
  • Issued: 12/08/2020
  • Est. Priority Date: 02/13/2009
  • Status: Active Grant
First Claim
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1. A method performed by a user equipment, UE, in a wireless communication system comprising a home enodeb, HeNB, the method comprising:

  • receiving an allowed closed subscriber group, CSG, list for the UE from a source eNodeB, eNB;

    reporting detection of a target HeNB to a source eNB;

    receiving a control message for performing system information acquisition from the source eNB in response to the report;

    receiving system information including a cell identifier ID, a tracking area ID TAI and a CSG ID from a target HeNB;

    identifying whether the CSGID included in the system information is in an allowed CSG list for the UE to determine whether the target HeNB is accessible;

    generating a measurement report in case that the CSGID included in the system information is in an allowed CSG list for the UE;

    sending the measurement report to a source eNB, wherein the measurement report comprises the TAI and the CSGID of the target HeNB; and

    in the case where the CSG ID transmitted to the target HeNB via the source eNB is verified as successful by the target HeNB, receiving a handover command message from the source eNB,wherein the CSG ID included in the measurement report is compared with the CSGID broadcasted in the target HeNB by the target HeNB to verify whether the CSGID included in the measurement report matches the CSG ID broadcasted in the target HeNB,wherein, in case that the CSGID included in the measurement report matches the CSGID broadcasted in the target HeNB, the CSG ID transmitted to the target HeNB via the source eNB is verified as successful by the target HeNB, andwherein the CSGID included in the measurement report is used for access control in the mobility management entity MME.

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