Method and apparatus for performing and reporting measurements by user equipment configured with multiple carriers in mobile communication systems
摘要
說明書
In the conventional art, CSI is reported to an ENB via PUCCH of a PCell, immediately at the first time point. When a PUCCH SCell is activated, it needs to prepare for additional PUCCH, unlike other SCells. Therefore, it may not have prepared for the transmission of CSI at the first time point, according to process speeds of UE. In particular, since UE and ENB need to simultaneously and precisely start the CSI reporting, if CSI is not prepared, error can occur. Therefore, unlike the conventional art, the embodiment does not force a series of the processes described above, but enables UE to have flexible time to completely prepare for the activation of the PUCCH SCell. That is, through the best effort delivery, CSI can be transmitted between the first and second time points.
UE 1601 is capable of performing second operations, below, at the second time point in operation 1612.
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- CSI reporting
- UE reports CSI to ENB at the second time point. This is to ensure that UE reports CSI to ENB at least one time since the second time point. The CSI can include the CSI regarding the PUCCH SCell and CSI regarding other SCells in the PUCCH cell group that the PUCCH SCell belonged to.
