Handover method
AssigneeElectronics and Telecommunications Research Institute
InventorHyun Seo PARK
Life of this patent
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Abstract
A UE receives a handover command from a source eNB, and transmits a handover indication message to the source eNB while maintaining a connection to the source eNB. After transmitting the handover indication message, the UE disconnects the connection to the source eNB. Further, the UE accesses to a target eNB. A handover command includes information indicating timing advance if a handover without a random access procedure is configured.
Claims24
A handover method of a UE, the method comprising:
- receiving a handover command from a source eNB;
- deciding a time point of a handover execution while maintaining a connection to the source eNB;
- and
- executing a handover based on the time point of the handover execution.
A handover method of an eNB, the method comprising:
- transmitting a handover command to a UE;
- deciding a time point of a handover by the UE;
- disconnecting a connection to the UE at the time point of the handover;
- and
- forwarding data to a target eNB.
A handover method of a UE, the method comprising:
- receiving a SeNB change command from a master eNB;
- deciding a time point of a SeNB change execution while maintaining a connection to a source SeNB;
- and
- executing the SeNB change based on the time point of the SeNB change execution.
A handover method of a SeNB, the method comprising:
- deciding a time point of a SeNB change by a UE;
- disconnecting a connection to the UE at the time point of the SeNB change;
- and
- forwarding data to a target SeNB.
Dependencies are inferred from the claim text.