2014. 3. 31. 11:36ㆍMobile/LTE and 5G
Direction : E-UTRAN => UE
Signalling Radio Bearer : N/A
RLC Mode : TM
Logical Channel : BCCH
Transport Channel : BCH
The MASTER INFORMATION BLOCK (MIB) includes a limited number of most essential and most frequently transmitted parameters that are needed to acquire other information from the cell.
The MIB is transmitted on BCH while all other SYSTEM INFORMATION messages are transmitted on DL-SCH.
As MIB is the most important information block, it is transmitted more frequently with a fixed scheduling.
The MIB uses a periodicity of 40ms and repetitions made within 40ms.
The first transmission of the MIB is scheduled in subframe #0 of radio frames for which the SFNmod4 = 0,
and repetitions are scheduled in subframe #0 of all other radio frames
The MIB contains DL bandwidth of the cell, PHICH configuration and the System Frame Number (SFN)
IEs in the MASTER INFORMATION BLOCK message
dl-Bandwidth:
Transmission bandwidth configuration, nRB in downlink.
The value n6 corresponds to 6 resource blocks, n15 to 15 resource blocks and so on.
Possible values are n6, n15, n25, n50, n75, and n100.
Table below gives the corresponding mapping to the actual channel bandwidth (Reference: 3GPP TS 36.101)
systemFrameNumber:
Defines the 8 most significant bits of the SFN
phich-Config:
This IE is used to specify the PHICH configuration
DLT: 147, Payload: rrc.si.mib (Radio Resource Control (RRC) protocol)
MasterInformationBlock
mib-ValueTag: 6
plmn-Type: gsm-MAP (0)
gsm-MAP
plmn-Identity
mcc: 3 items
Item 0
Digit: 4
Item 1
Digit: 5
Item 2
Digit: 0
mnc: 2 items
Item 0
Digit: 0
Item 1
Digit: 5
sibSb-ReferenceList: 6 items
Item 0
SchedulingInformationSIBSb
sibSb-Type: sysInfoTypeSB1 (21)
sysInfoTypeSB1: 2
scheduling
scheduling
sib-Pos: rep64 (4)
rep64: 2
Item 1
SchedulingInformationSIBSb
sibSb-Type: sysInfoType1 (0)
sysInfoType1: 4
scheduling
scheduling
sib-Pos: rep64 (4)
rep64: 11
Item 2
SchedulingInformationSIBSb
sibSb-Type: sysInfoType2 (1)
sysInfoType2: 4
scheduling
scheduling
sib-Pos: rep64 (4)
rep64: 13
Item 3
SchedulingInformationSIBSb
sibSb-Type: sysInfoType3 (2)
sysInfoType3: 4
scheduling
scheduling
sib-Pos: rep64 (4)
rep64: 14
Item 4
SchedulingInformationSIBSb
sibSb-Type: sysInfoType5 (4)
sysInfoType5: 2
scheduling
scheduling
segCount: 4
sib-Pos: rep64 (4)
rep64: 15
sib-PosOffsetInfo: 3 items
Item 0
SibOFF: so6 (2)
Item 1
SibOFF: so2 (0)
Item 2
SibOFF: so4 (1)
Item 5
SchedulingInformationSIBSb
sibSb-Type: sysInfoType7 (6)
sysInfoType7: NULL
scheduling
scheduling
sib-Pos: rep16 (2)
rep16: 1
v690NonCriticalExtensions
masterInformationBlock-v690ext
v6b0NonCriticalExtensions
masterInformationBlock-v6b0ext
v860NonCriticalExtensions
masterInformationBlock-v860ext
extSIBTypeInfoSchedulingInfo-List: 1 item
Item 0
ExtSIBTypeInfoSchedulingInfo2
extensionSIB-Type2: systemInfoType19 (0)
systemInfoType19: NULL
schedulingInfo
scheduling
sib-Pos: rep64 (4)
rep64: 22
valueTagInfo: cellValueTag (1)
cellValueTag: 4
Data Ref : http://howltestuffworks.blogspot.kr/search?q=MIB
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