SIB11 in LTE

SIB11: ETWS secondary notification

•  contains an ETWS secondary notification

Signalling radio bearer: N/A
RLC-Mode: TM
Logical channel: BCCH
Direction: E‑UTRAN to UE

Important contents of SystemInformationBlockType11
messageIdentifier
serialNumber
warningMessageSegmentType
warningMessageSegmentNumber
warningMessageSegment
dataCodingScheme

Field Descriptions:

messageIdentifier	Identifies the source and type of ETWS notification (earthquake, tsunami warning, any emergency or test message)
serialNumber	Identifies variations of an ETWS notification. -uses various mechanisms to alert the user (display message, play a tone or vibrate, location where the message is applicable, also contains an update number which specifies whether a change is in the message content or not)
warningMessageSegmentType [last/not last]	Indicates whether the included ETWS warning message segment is the last segment of the complete segment or not
warningMessageSegmentNumber	# allows oedering of the message segments # Segment number of the ETWS warning message segment contained in the SIB. A segment number of zero corresponds to the first segment, one corresponds to the second segment, and so on
warningMessageSegment	carries actual segment of the message
dataCodingScheme	Identifies the alphabet/coding and the language applied variations of an ETWS notification

SIB10 in LTE

SIB10: ETWS primary notification

• contains an ETWS primary notification

Signalling radio bearer: N/A
RLC-Mode: TM
Logical channel: BCCH
Direction: E‑UTRAN to UE

Important contents of SystemInformationBlockType10

messageIdentifier
serialNumber
warningType
warningSecurityInfo


Field Descriptions:

messageIdentifier	Identifies the source and type of ETWS notification (earthquake, tsunami warning, any emergency or test message)
serialNumber	Identifies variations of an ETWS notification. -uses various mechanisms to alert the user (display message, play a tone or vibrate, location where the message is applicable, also contains an update number which specifies whether a change is in the message content or not)
warningType	# Identifies the warning type of the ETWS primary notification (earthquake, tsunami, etc.) and # provides information on emergency user alert and UE popup
warningSecurityInfo	# is optional, only applied when security is applied # Provides security information for the ETWS notification

SIB9 in LTE

SIB9: Home eNB name

• contains a home eNB name (HeNB Name)
• HeNB provie services to Closed Subscriber Groups. The HeNB name helps the user to select the correct CSG Identity when performing a manual selection

Signalling radio bearer: N/A
RLC-Mode: TM
Logical channel: BCCH
Direction: E‑UTRAN to UE

Important contents of SystemInformationBlockType9
hnb-Name


Field Descriptions:

hnb-Name

Carries the name of the home eNB

SIB7 in LTE

SIB7: Cell-reselection parameters INTER RAT Frequency (GERAN)

• contains information relevant only for inter-RAT (GERAN) cell re-selection 

Signalling radio bearer: N/A
RLC-Mode: TM
Logical channel: BCCH
Direction: E‑UTRAN to UE

 

Important contents of SystemInformationBlockType7

t_ReselectionGERAN	Time to trigger for reselection. Value 0 to 7 sec.
carrierFreqsInfoList[0]	carries upto 16 instances of GERAN freq.
carrierFreqs
startingARFCN	Start of the ARFCN
bandIndicator	dcs1800 or pcs1900
followingARFCNs	ARFCN groups
cellReselectionPriority	absolute priority of the GERAN layer. Value 0 to 7, whereas 0 is the lowest priority
ncc_Permitted	Network Color Code. Is a bitmap value
q_RxLevMin	minimum RSSI value required
p_MaxGERAN	maximum allowed UL transmit power
threshX_High	# Threshold (in dB) used by UE for cell re-selection to a HIGHER priority frequency #  The Srxlev of the candiate cell is greater then threshX_High # Value 0 to 31 dB. Actual value= Signaled value * 2
threshX_Low	# Threshold (in dB) used by UE for cell re-selection to a LOWER priority frequency #  Cell re-selection is allowed only when Srxlev of the candiate cell is greater then threshX_Low and RSRP of serving cell is less than the value of ThreshServingLow singalled within SIB3 # Value 0 to 31 dB. Actual value= Signaled value * 2

SIB5 in LTE

SIB5: Cell-reselection parameters for INTER-Frequency

• contains information relevant only for inter-frequency cell re-selection i.e. information about other E‑UTRA frequencies and inter-frequency neighbouring cells relevant for cell re-selection
• includes cell re-selection parameters common for a frequency as well as cell specific re-selection parameters

Signalling radio bearer: N/A
RLC-Mode: TM
Logical channel: BCCH
Direction: E‑UTRAN to UE

Important contents of SystemInformationBlockType5

InterFreqCarrierFreqInfo	can be specified upto 8 carrier frequencies
dl-CarrierFreq	carrier frequency helps the UE to search the cells
q-RxLevMin	minimum RSRP value of the inter-frequency cell. Value -70 to -22 dBm. Actual value: signalled value * 2
p-Max	maximum allowed UL transmit power of the cell
t-ReselectionEUTRA	defines the time to trigger for cell reselection. Value 0 to 7 sec.
t-ReselectionEUTRA-SF	scaling factors for Medium and High mobility
threshX-High	# Threshold (in dB) used by UE for cell re-selection to a HIGHER priority #  The Srxlev of the candiate cell is greater then threshX_High # Value 0 to 31 dB. Actual value= Signaled value * 2
threshX-Low	# Threshold (in dB) used by UE for cell re-selection to a LOWER priority #  Cell re-selection is allowed only when Srxlev of the candiate cell is greater then threshX_Low and RSRP of serving cell is less than the value of ThreshServingLow singalled within SIB3 # Value 0 to 31 dB. Actual value= Signaled value * 2
allowedMeasBandwidth	defined in terms of Resouce blocks associated with a specific channel bandwidth
cellReselectionPriority	defines the Abolute priority of the frequency layer
neighCellConfig	information regarding the neighbouring cells
q-OffsetFreq	defines the RSRP measurement offset, applied to all cells on the specified RF carrier
interFreqBlackCellList	the mentioned cells are no considered for cell reselection