In Idle mode, the UE has no connection to the radio network.Keeping UEs in Idle mode minimizes the use of resources both for the UEs and in the network. However, the UEs must still be able to access the system and be reached by the system with acceptable delays. For this, the following procedures need to be
performed.
- PLMN selection and reselection
- Cell selection and reselection
- Location Area (LA) and Routing Area (RA) updating
- Paging
- System information broadcast
what is the meaning of the acronym CPICH?
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