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LTE: What is the relation between MCCH and MBSFN Area ?

+4 votes
LTE: What is the relation between MCCH and MBSFN Area ?
posted Aug 8, 2015 by Vikram Singh

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1 Answer

+1 vote

If I understood your question correctly then please find my response as below.
One cell can be the part of maximum 8 MBSFN Areas and each MBSFN Area has its own configuration for MCCH.

Reference from 36.331, content of SIB-13 :

**SystemInformationBlockType13-r9 ::=   SEQUENCE {
    mbsfn-AreaInfoList-r9               MBSFN-AreaInfoList-r9,
    notificationConfig-r9               MBMS-NotificationConfig-r9,
    lateNonCriticalExtension            OCTET STRING                    OPTIONAL,   -- Need OP

MBSFN-AreaInfoList-r9 ::=           SEQUENCE (SIZE(1..maxMBSFN-Area)) OF MBSFN-AreaInfo-r9

MBSFN-AreaInfo-r9 ::=               SEQUENCE {
    mbsfn-AreaId-r9                     INTEGER (0..255),
    non-MBSFNregionLength               ENUMERATED {s1, s2},
    notificationIndicator-r9                INTEGER (0..7),
    mcch-Config-r9                      SEQUENCE {
        mcch-RepetitionPeriod-r9            ENUMERATED {rf32, rf64, rf128, rf256},
        mcch-Offset-r9                      INTEGER (0..10),
        mcch-ModificationPeriod-r9          ENUMERATED {rf512, rf1024},
        sf-AllocInfo-r9                     BIT STRING (SIZE(6)),
        signallingMCS-r9                    ENUMERATED {n2, n7, n13, n19}

maxMBSFN-Area               INTEGER ::= 8

I explained properly, if you still have any doubt then feel free to ask.

answer Aug 8, 2015 by Vimal Kumar Mishra
Similar Questions
+2 votes

Within the LTE network, different eNodeBs can be deployed with the different bandwidth configuration. Few eNodeBs may be deployed with 10 MHz and few with the 20 MHz. Now I have two questions here.
1. Is it necessary all the cells should have same bandwidth deployment ? If answer is yes then ignore the second question.
2. If cells of the same MBSFN area can have different deployment bandwidth then they would have different amount of multicast resources and what if when a cell exhaust with the allocated MBMS radio resources ? What corrective action MCE should take in this case when few cells of a MBSFN area does not enough room to accommodate new services and other set of cells within the same MBSFN area can serve ?

+1 vote

I know one MCCH channel is associated to one MBSFNArea Configuration and MBSFNAreaConfiguration carries the configuration associated to a particular MBSFNArea. I have no idea of use of SC-MCCH logical channel. Can a cell support both logical channels simultaneously ? If both can exist together in a cell then UE will choose which channel ? Can someone please share his/her thoughts over these queries ? Thanks in advance.

+1 vote

I have very limited insight in mutlimedia multicast/broadcast services. An article says one LTE cell can have maximum of 8 MCCH channels and each MCCH configuration corresponds to configuration of one MBSFN area.
If this is correct then it concludes that one LTE cell can be part of max 8 MBSFN areas.

Each MBSFN area can be used to broadcast multiple multicast/broadcast services.
Now I want to how many TV channels (a kind of broadcast/multicast service) can be broadcasted ?
One related query is how an UE come know about the channels such as DD news, ESPN etc are being broadcasted in cell ?

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