PLMN selection in "IDEL Mode" for LTE-UE When an UE is switched on, it attempts to make contact with a PLMN. The selection of the PLMN could be either automatically or manually. • Automatic mode: Utilizes a list of PLMN to be selected in priority order. • Manual mode: The mobile station indicates available PLMN … Read more
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
PLMN Selection Process in LTE The UE scans all RF channels in the UTRAN band according to its capabilities to find available PLMNs. On each carrier, the UE searches for the strongest cell according to the cell search procedure (refer cell searching) and read its system information in order to find out which PLMN the … Read more
When the mobile is switched on it will select the registered PLMN in the mobile if there exist one. If there is no registered GSM PLMN or the registered PLMN is not available (no coverage) then the GSM mobile will try to select another GSM PLMN either automatically or manually depending on it mode. AUTOMATIC … Read more