Cell selection and reselection in LTE UE To get service from the selected PLMN, the UE performs two types of procedures: LTE cell selection and LTE cell reselection CELL SELECTION in LTE Upon PLMN selection, LTE UE uses “cell selection” for fast cell searching to camp on. To receive system information LTE UE tunes to … Read more
The action of camping on provides access to services. The network provides different levels of service to a UE in either Idle mode or Connected mode. Three levels of services are defined: LIMITED SERVICE: emergency calls on an acceptable cell. Acceptable cell: UE may camp to obtain limited service like emergency call. The minimum set … Read more
S-CRITERION The cell selection criterion S is a pre-condition for suitable cells. The conditions for E-UTRAN, UTRAN FDD and GSM cells are listed in the figure. R – CRITERION – CELL RESELECTION The cell reselection evaluation process depends on whether Hierarchical Cell Structure (HCS) is used or not. In order to perform cell reselection UE … Read more