eMBMS from A-Z

Overview of Broadcasting Technologies

Important broadcast technologies
- DVB (DVB-S, DVB-T/H), DMB, MBSAT, ATSC, MBMS
History of MBMS and its Future
- Rel.6 MBMS and its Limitations, Evolution with Rel.9, Rel.10, Rel. 11 and outlook, why cellular broadcast (eMBMS) gains the attention of operators, Impact and possibilities with LTE-A and beyond.
Some MBMS use cases and service categories
- text notification, video + audio + general content distribution, software download
Comparison between MBMS and some other broadcast technologies
- indication of operator advantages

MBMS Architecture and Operational Overview

Overview
- Architecture model, reference points
Role of Network Entities to support (e)MBMS
- BM-SC, UE, (e)UTRAN / GERAN, MBMSGW, MCE
Specific new interfaces with eUTRAN
- M1, M2, M3
Operation modes
- Multicast Mode, Broadcast Mode
Operational Example of MBMS
- Announcement (XML), Subscription ...

(e)MBMS in the Radio Access Network

MBMS specifics of Bearer Setup and Release
- GERAN, UTRAN, eUTRAN, interface specific view UE to packet core (legacy and EPC), use of common or dedicated channels
Changes to the GERAN protocol stacks
- Reference only
Changes to the UTRAN protocol stacks
- Reference only (possible case for Service Continuity)
eUTRAN protocol stacks, M2AP, M3AP
- EPS architecture refresh
Overview of new channels
- Overview of MCCH, MTCH, MCH PMCH, Comparison with 3G channels
Mapping of logical channels to transport and physical channels
- Logical channel Mapping Alternatives (LTE mixed mode vs dedicated mode)
MAC layer enhancements for MBMS
MBMS Details of the physical layer
- eUTRAN access mechanism refresh, Cyclic Prefix, MBMS Subcarrier Spacing, MBMS subframes decoding and allocation, SIB2 - SIB13, UE capability requirements.
Correlation of MBMS to RRC
- Access control procedure / collision avoidance, RRC modes and states
MBMS Mobility Considerations
- periodical transmission of MBMS critical information, UE mobility actions

MBMS User Services

Differentiation between MBMS user services and MBMS applications
Subscription to MBMS services
- procedure overview
MBMS Data Delivery details
- download services, streaming services, carousel services
MBMS Charging methods
- broadcast + multicast modes, subscription (key based charging, bearer level / application level charging)
OMBMS Security aspects
- architecture, HTTP digest authentication, registration / deregistration, service and traffic key delivery procedures
QoS
- adaptation of MBMS user service to the access network QoS resources

Protocol stack details for MBMS user services

Overview
- Architecture model, MBMS bearer, PTP bearer (diagnostics etc.)
Overview of FLUTE protocol
- Formats, use in MBMS, Messages and important parameters
Media codecs and formats
- Speech, Audio, Video, Images, Graphics, Text, Data formats, MBMS Metadata, MBMS FEC scheme

End to End Scenarios

MBMS Notification
- initial conditions, applicability of this procedure, description
MBMS Session Start
- initial conditions, applicability of this procedure, description
MBMS Session Stop
- initial conditions, applicability of this procedure, description
MBMS Registration
- initial conditions, applicability of this procedure, description
MBMS De-Registration
- initial conditions, applicability of this procedure, description
MBMS multicast service activation
- initial conditions, applicability of this procedure, description
MBMS multicast service de-activation
- MBMS multicast service de-activation
Inter SGSN routing area update
- initial conditions, applicability of this procedure, description
Inter SGSN serving RNS relocation
- initial conditions, applicability of this procedure, description
MBMS UE context synchronisation
- initial conditions, applicability of this procedure, description
MBMS UE linking / de-linking mechanism
- initial conditions, applicability of this procedure, description

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