| 摘要 |
The application relates inter-frequency measurements on cells that are on a frequency different to the active frequency. In particular the application relates to a working item of TSG RAN called "Inter-frequency detected set measurements for UMTS (IDT)". In current specifications, it is possible to signal to the UE a PSC split for CSG Cells in the used frequency, in the SIB. One problem related to this is that the terminal might not know which of the cells located on the non-serving frequency are CSG or hybrid cells. Typically, a network deploying CSG/ hybrid cells can broadcast in SIB3 or SIB11bis a CSG PSC split range which according to 25.331, section 8.6.2.4 is valid for 24 hours, on the PLMN and UARFCN where it was received. This however applies only to non CELL_DCH states reselections and thus is currently not applicable to connected mode (CELL_DCH). Thus, assuming a UE has initially camped on a frequency and acquired the PSC Split information for this frequency, while going to connected mode and performing detected set measurements on non-serving frequencies the UE does not know which PSC values represent CSG nor hybrid cells. This problem is solved by the application in that the network (RNC) signals (RRC: Measurement Configuration Message) to the UE the information by which the UE to can distinguish cells on a non-serving frequency with regard to whether measurements are to be reported for them or whether they can be connected to. This information is in particular in the form of a PSC split. |
