MIB and SIB in LTE

 

 

System Information Broadcasted by an eNB Features

Main Parameters

MIB

Most essential PHY parameters to access the cell

DL bandwidth, SFN, PHICH configuration

SIB 1

Access restriction info of a UE and the scheduling of other SIBs

Access restriction info, Cell selection info, scheduling info list (SI periodicity,

LTE System Information

SI: Group of SIBs (SIB 2 ~ SIB 16) MIB

SI 2 SIB 1

Feb. 2013

SI 1

SIB types) MIB SI SIB SFN

SI 2

MIB SIB 1

SI 1

MIB SIB 1 SI 1

Radio frame = 10ms

SFN #: 0

1

2

4

5

6

New SIB 1

7

Common and shared channel info (RACH, BCCH, PCCH, PRACH, PDSCH, PUSCH, PUCCH, Sounding RS, UL power control), MBSFN sub-frame configuration)

8

9

Repeted SIB 1

10

11

12

13

14

15

SIB 3

Cell re-selection info common for all UEs in Idle state

q-Hyst, q-RxLevMin, s-IntraSearch, s-NonIntraSearch, Cell reselection priority, t-ReselectionEUTRA

SIB 4

Neighbor cell info relevant for intra-frequency cell re-selection

Neighbor cell list, Black cell list, PCI for CSG

SIB 5

E-UTRA frequencies and neighbor cell info relevant for inter-frequency cell re-selection

Supported E-UTRA frequency list (EUTRA frequency, Neighbor cell list, Black cell list, Reselection threshold)

SIB 6/7/8

Inter-RAT cell re-section info (for UTRA/GERAN/CDMA2000)

SIB 9

Home eNB name info

HeNB name

SIB 10

ETWS* primary notification

SIB 11

ETWS* secondary notification

* Earthquake and Tsunami Warning System

SIB 12 (R9)

CMAS** notification

** Commercial Mobile Alert Service

SIB 13 (R9)

Info required to acquire the MBMS control info

MCCH configuration (MCCH offset, MCCH repetition period, MCCH modification period, SF allocation info)

16

... MIB (Fixed): SFN mod 4 = 0, Subframe #0 ... SIB 1 (Fixed): SFN mod 8 = 0, Subframe #5 Other SIBs (Variable)

Radio resource configuration common for all UEs

Cell Re-selection Info

SI 3 SI 2

New MIB Repeted MIB

3

SIB 2

: Mast Master er Information Block : System Information : System Information Block : System Frame Number

Other SIBs (Variable)

Scheduled as defined by SIB 1

SI (Group of SIBs)

Type of System Information

MIB

SIB 1

Mandatoty/Optional

Mandatory

Mandatory

Fixed

Fixed

Dynamic

Scheduling

Periodicity: 40ms (Repetitions:10ms)

Periodicity: 80ms (Repetitions:20ms)

Scheduled as defined by SIB 1

SIB 14 (R11)

EAB*** parameters

*** Extended Access Barring

Transport Message

RRC Message  MIB

RRC Message  SIB 1

RRC Message  SI

SIB 15 (R11)

MBMS Service Area Identities

MBMS SAIs for the current/neighbor

(SAI) info

frequencies

GPS time and coordinated universal time (UTC) related info

Day light saving time, GPS time, UTC, Local time offset

L2 L1

 – 

SIB 2

SIB 3 ~ SIB 16

Mandatory

Optional

 – 

 – 

Logical CH

BCCH

BCCH

Transport CH

BCH

DL-SCH

Physical CH

PBCH

PDSCH

SIB 16 (R11)