10.2.16j MBMS Modified services Information

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

This information is transmitted periodically by UTRAN to inform UEs about a change applicable for one or more MBMS services available in the current cell and possibly in neighbouring cells.

RLC-SAP: AM (DCCH only) or UM

Logical channel: MCCH, DCCH

Direction: UTRAN  UE

Information Element/Group name

Need

Multi

Type and reference

Semantics description

Version

Message type

MP

Message Type

REL-6

UE information elements

REL-6

Integrity check info

CV-DCCHCH

Integrity check info 10.3.3.16

Integrity check info is included if integrity protection is applied

REL-6

MBMS information elements

REL-6

Modified service list

OP

1.. <maxMBMSservModif>

REL-6

>MBMS Transmission identity

MP

MBMS Transmission identity

10.3.9a.12

REL-6

>MBMS required UE action

MP

Enumerated (None, Acquire counting info, Acquire counting info – PTM RBs unmodified, Acquire PTM RB info, RequestPTP RB, Release PTM RB)

Indicates required UE action upon receiving the message.

When sent on the DCCH, only the following values apply: None, Acquire PTM RB info, request PTP RB).

If the cell is operating in MBSFN mode as indicated in subclause 8.1.1.6.3 all values except “Acquire PTM RB info” and "Release PTM RB" are handled as if “None” was received.

REL-6

>MBMS PTM RB Release Cause

CV-PTM_RB_RELEASE_LCR_TDD

Enumerated (NormalRelease, Out of MBMS Service Coverage in RAN, Network Abnormal Release)

Indicates the PTM RB Release cause. For 1.28 Mcps TDD only.

REL-7

>MBMS preferred frequency

OP

Indicates the frequency that UEs shall consider as the preferred frequency.

If the cell is operating in MBSFN mode as indicated in subclause 8.1.1.6.3 the UE behaviour upon reception of this IE is unspecified.

REL-6

>>PFL index

CV-MCCH

Integer (1.. <maxMBMS-Freq>)

Index pointing to an entry in the list included in MBMS GENERAL INFORMATION.

If the cell is operating in MBSFN mode as indicated in subclause 8.1.1.6.3 the UE behaviour upon reception of this IE is unspecified.

REL-6

>>PFL info

CV- DCCH

Frequency info 10.3.6.36

REL-6

>Continue MCCH reading

MP

BOOLEAN

MCCH in- band notification. Indicates whether or not the UE should continue reading MCCH in the next modification period.

Not applicable when sent on the DCCH

REL-6

>MBSFN cluster frequency

CV-MBSFN

Integer (1..<maxMBSFNclusters>

For FDD and 3.84/7.68 Mcps TDD index pointing to a frequency indicated in the IE "MBSFN inter frequency neighbour list " in MBMS General Information. Default: the current MBSFN cluster.

For 1.28 Mcps TDD index pointing to a frequency indicated in the SIB 11. Default: the current MBSFN cluster.

REL-7

MBMS re- acquire MCCH

CV-MCCHOP

Enumerated (TRUE)

REL-6

MBMS dynamic persistence level

CV-MCCHOP

Dynamic persistence level 10.3.6.35

If the cell is operating in MBSFN mode as indicated in subclause 8.1.1.6.3 the UE behaviour upon reception of this IE is unspecified

REL-6

End of modified MCCH information

CV-MCCHOP

Integer (1..16)

If present: the UE may assume that, in each repetition period, all the MCCH information preceding the MBMS UNMODIFIED SERVICES INFORMATION message is transmitted within the indicated number of TTIs.

REL-6

MBMS number of neighbour cells

MP

Integer (0..32)

Indicates the number of MBMS NEIGHBOURING CELL P-T-M RB INFORMATION messages that are contained within the MCCH transmission.

Not applicable when sent on the DCCH.

If the cell is operating in MBSFN mode as indicated in subclause 8.1.1.6.3 the UE behaves as if the value 0 was received.

REL-6

MBMS all unmodified p-t-m services

CV-MCCHOP

Enumerated (TRUE)

TRUE means that the UE should re-acquire the PtM information for all services listed in the message MBMS Unmodified services Information with the IE “MBMS required UE action” set to “Acquire PTM RB info”

REL-6

MBMS p-t-m activation time

CV-MCCHOP

MBMS p-t-m activation time 10.3.9a.7o

REL-6

MIB Value tag

OP

MIB Value tag 10.3.8.9

Indicates the matching System Information.

REL-7

Condition

Explanation

MCCH

This IE is mandatory present if the message is sent via MCCH and not needed otherwise.

DCCH

This IE is mandatory present if the message is sent via DCCH and not needed otherwise.

MCCHOP

This IE is optionally present if the message is sent via MCCH and not needed otherwise.

DCCHCH

This IE is present conditionnaly on history if the message is sent via DCCH and not present otherwise.

MBSFN

This IE is mandatory default when the cell on which this IE is sent is operating in MBSFN mode according to subclause 8.1.1.6.3. Otherwise the IE is not needed.

PTM_RB_RELEASE_LCR_TDD

This IE is optionally present if the IE “MBMS required UE action” has the value “Release PTM RB”. Otherwise it is not needed. For 1.28 Mcps TDD only.