Patent ID: 9510253
Filing Date: 2016-11-29
CPC Classification: H04W

Claim Text:
1. A method for determining a reason for a too late handover to a Home eNB (HeNB), comprising: after a Radio Link Failure (RLF) occurs to a User Equipment (UE) in a source cell, receiving, by the HeNB, a request for re-establishing a Radio Resource Control (RRC) sent by the UE; generating, by the HeNB, an RLF Indication message, and transmitting the RLF Indication message to an eNodeB managing the source cell, wherein the RLF Indication message comprises information on a Closed Subscriber Group (CSG) cell currently accessed by the UE; and determining, by the eNodeB, the reason for the too late handover of the UE to the HeNB according to the received RLF Indication message, wherein a too late handover refers to a case that when a UE triggers a handover from a source cell to a target cell or before the handover is even triggered, signal strength of the source cell received by the UE has become so weak that an RLF occurs to the UE in the source cell, and then the UE establishes a connection in the target cell which is a cell other than the source cell.