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What is cell selection and plmn selection in LTE ?

+2 votes
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What is cell selection and plmn selection in LTE ?
posted Nov 21, 2014 by Gnanendra Reddy

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1 Answer

+1 vote

The UE scans all RF channels in the UTRAN/eUtran 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 and read its system information in order to find out which PLMN the cell belongs to.

After selecting a PLMN, the cell selection process starts. The UE selects a suitable cell and the radio access mode based on idle mode measurements and cell selection criteria. The UE searches a suitable cell of that PLMN to camp on according to the following figure -

Cell Selection

answer Nov 21, 2014 by Salil Agrawal
will you tel the difference between scanning for plmns and scanning for cells ( UE nas will give selected plmn to as then what ue AS will scan now)is it same frequencies scanned initially for plmns or different
commented Feb 10, 2015 by Gnanendra Reddy
As a UE it need to select two stuff i.e. its airtel or vodafone and cell on which it is camped.
commented Feb 10, 2015 by Salil Agrawal
assume i selected airtel now how it performs cell selection?
commented Feb 10, 2015 by Gnanendra Reddy
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