Patent ID: 9655161
Date: 2017-05-16
CPC Classifications: H04W

Claim:
1. A method for reporting auxiliary information, the method comprising: reporting, by a user equipment, auxiliary information to a source base station; determining, by the user equipment, whether the auxiliary information needs to be reported again in a destination cell; and if it is determined that the auxiliary information needs to be reported again in the destination cell, then reporting, by the user equipment, the auxiliary information to a destination base station after the user equipment is switched to the destination cell; wherein the user equipment determines whether the auxiliary information needs to be reported again in the destination cell in one of the following six approaches: in a first approach, the user equipment receives indication signaling transmitted by the source base station, wherein the indication signaling indicates whether the auxiliary information reported by the user equipment to the source base station before the source base station transmits a handover command is forwarded by the source base station to the destination base station, or indicates whether the user equipment needs to report again the lastly reported auxiliary information in the destination cell; and the user equipment determines from the indication signaling whether the lastly reported auxiliary information needs to be reported again in the destination cell; in a second approach, the user equipment starts an auxiliary information forward judgment timer according to configuration information of the auxiliary information forward judgment timer after the auxiliary information is reported to the source base station; and judges whether the auxiliary information forward judgment timer expires when a handover command transmitted by the source base station is received, and if the timer expires, then the user equipment determines that the auxiliary information does not need to be reported again in the destination cell; otherwise, the user equipment determines that the auxiliary information needs to be reported again in the destination cell; in a third approach, if the auxiliary information is auxiliary information reported by the user equipment after a handover measurement report is made to the source base station and before a handover command transmitted by the source base station is received, then the user equipment determines that the auxiliary information needs to be reported again in the destination cell; otherwise, the user equipment determines that the auxiliary information does not need to be reported again in the destination cell; in a fourth approach, if the auxiliary information is auxiliary information reported by the user equipment after a handover measurement report has been made to the source base station for a preset period of time and before a handover command transmitted by the source base station is received, then the user equipment determines that the auxiliary information needs to be reported again in the destination cell; otherwise, the user equipment determines that the auxiliary information does not need to be reported again in the destination cell; in a fifth approach, the user equipment judges whether the difference between a point of time when a handover command is received, and a point of time when the auxiliary information is reported to the source base station is less than a preset value of time, and if so, then the user equipment determines that the auxiliary information needs to be reported again in the destination cell; otherwise, the user equipment determines that the auxiliary information does not need to be reported again in the destination cell; and in a sixth approach, the user equipment receives a point of time, transmitted by the source base station, when the source base station transmits a handover request to the destination base station; and judges whether a point of time when the auxiliary information is transmitted to the source base station is later than the point of time when the source base station transmits the handover request to the destination base station, and if so, then the user equipment determines that the auxiliary information needs to be reported again in the destination cell; otherwise, the user equipment determines that the auxiliary information does not need to be reported again in the destination cell.