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How Many MIB's & SIB's in LTE

+2 votes


Can any one let me know how many MIB's and SIB's are being used, and their contents?

posted May 19, 2015 by Vivek Bahadur Singh

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3 Answers

+2 votes

Below should be helpful

MIB Carries physical layer information of LTE cell which in turn help receive further SIs, i.e. system bandwidth
SIB1 Contains information regarding whether or not UE is allowed to access the LTE cell. It also defines the scheduling of the other SIBs. carries cell ID, MCC, MNC, TAC, SIB mapping.
SIB2 Carries common channel as well as shared channel information. It also carries RRC, uplink power control, preamble power ramping, uplink Cyclic Prefix Length, sub-frame hopping, uplink EARFCN
SIB3 carries cell re-selection information as well as Intra frequency cell re-selection information
SIB4 carries Intra Frequency Neighbors(on same frequency); carries serving cell and neighbor cell frequencies required for cell reselection as well handover
SIB5 Carries Inter Frequency Neighbors(on different frequency); carries E-UTRA LTE frequencies, The purpose is cell reselection and handover.
SIB6 carries WCDMA neighbors information i.e. carries serving UTRA and neighbor cell frequencies useful for cell re-selection and handover
SIB7 carries GSM neighbours information i.e. Carries GERAN frequencies as well as GERAN neighbor cell frequencies. It is used for cell re-selection as well as handover purpose.
SIB8 carries CDMA-2000 EVDO frequencies, CDMA-2000 neighbor cell frequencies.
SIB9 carries HNBID (Home eNodeB Identifier)
SIB10 carries ETWS prim. notification
SIB11 carries ETWS sec. notification
SIB-12 Commercial Mobile Alert Service (CMAS) information.

answer May 20, 2015 by Alkesh Mehta
+1 vote

There is only one MIB and 16 SIBs as per Latest Releases in LTE.

answer Jun 8, 2015 by Anand Yadav
0 votes

One more sib in lte

SIB13 - MBMS control information
Contains the information required to acquire the MBMS control information associated with one or more MBSFN areas
It is introduced in Release9

answer May 20, 2015 by Veer Pal Singh Yadav
Similar Questions
0 votes

It is my understanding that more SIBs can be scheduled inside a single SI message, but it is not clear to me how to read them inside an SI message, once I know where to find it. Are their contents simply one after another (as in let's say [SIB2 content | SIB3 content]) or is there a special structure to them?