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Content for  TR 26.852  Word version:  14.2.0

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0  Introductionp. 6

The present document has been created as part of the MEPRO work item to identify relevant profiles for the MBMS user services, study the feasibility of MBMS as a transport enabler, and identify relevant APIs that can offered to applications to enable usage of MBMS user services.

1  Scopep. 7

The present document identifies a set of profiles for based on the most relevant use cases for the usage of MBMS. It also studies the feasibility of using MBMS as a regular transport enabler through the definition of an MBMS URL scheme and the procedures to resolve such URL schemes. In addition, it identifies a set of APIs for controlling MBMS user service reception and retrieving resources that are delivered over MBMS. Finally, the present document also addresses the issue of defining QoE reporting for DASH over MBMS.
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2  Referencesp. 7

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TR 41.001: "GSM Release specifications".
→ to date, withdrawn by 3GPP
[3]
TR 21 912: (V3.1.0) "Example 2, using fixed text".
→ to date, withdrawn by 3GPP
[4]
TS 26.346: " Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".
[5]
RFC 5052:  "Forward Error Correction (FEC) Building Block".
[6]
RFC 5053:  "Raptor Forward Error Correction Scheme for Object Delivery".
[7]
RFC 3695:  "Compact Forward Error Correction (FEC) Schemes".
[8]
RFC 5053:  "Raptor Forward Error Correction Scheme for Object Delivery".
[9]
TS 26.247: "Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)".
[10]
RFC 2616:  " Hypertext Transfer Protocol -- HTTP/1.1".
[11]
TS 26.946: "Multimedia Broadcast/Multicast Service (MBMS) user service guidelines"
[12]
ISO/IEC 23009-1:2014: "Information technology -- Dynamic adaptive streaming over HTTP (DASH) -- Part 1: Media presentation description and segment formats".
[13]
TS 29.303: "Domain Name System Procedures, Stage 3"
[14]
RFC 2782:  "A DNS RR for specifying the location of services (DNS SRV)"
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3  Definitions and abbreviationsp. 7

3.1  Definitionsp. 7

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Multimedia Broadcast/Multicast Service (MBMS):
See TS 26.346.
MBMS user services:
See TS 26.346.
MBMS user service discovery/announcement:
user service discovery refers to methods for the UE to obtain the list of available MBMS user services along with information on the user service
The user service announcement refers to methods for the MBMS service provider to make the list of available MBMS user services along with information on the user service available to the UE.
MBMS delivery method:
mechanism used by a MBMS user service to deliver content
There are three MBMS delivery method instances: group communication, download and streaming.
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3.2  Abbreviationsp. 8

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
ADPD
Associated Delivery Procedure Description
BM-SC
Broadcast-Multicast - Service Centre
DANE
DASH Aware Network Element
DASH
Dynamic Adaptive Streaming over HTTP
ERT
Expected Residual Time
FDT
File Delivery Table
FLUTE
File deLivery over Unidirectional Transport
LCT
Layered Coding Transport
MIME
Multipurpose Internet Mail Extensions
PSS
Packet Switch Streaming
SAND
Server and Network Assisted DASH
SCT
Sender Current Time
TMGI
Temporary Mobile Group Identity
TOI
Transport Object Identifier
TSI
Transport Session Identifier
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