Content for TR 26.946 Word version: 18.0.0
2 References
3 Definitions and abbreviations
4 Overview
5 Description of User Service procedures
6 Delivery methods
7 Usage scenarios
8 Codecs and formats
A MBMS Forward Error Correction performance
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2 References p. 6
3 Definitions and abbreviations p. 7
3.1 Definitions p. 7
3.2 Abbreviations p. 8
4 Overview p. 9
4.1 Phasing model p. 9
4.2 System overview p. 10
5 Description of User Service procedures p. 11
5.1 User Service Discovery / Announcement p. 11
5.2 User Service Initiation / termination procedure p. 11
5.3 Session Start / Stop p. 12
5.4 Data transmission p. 12
5.5 Associated-Delivery procedures p. 12
6 Delivery methods p. 12
6.1 Download delivery method p. 12
6.1.1 SDL diagram of the download delivery method for the MBMS UE p. 14
6.1.2 Transport of MBMS download data p. 16
6.1.3 Repair Symbol Request p. 18
6.1.3.1 Option 1: Determination of a minimum set of source symbols for repair p. 18
6.1.3.2 Option 2: Determination of a sufficient set of consecutive encoding symbols for repair p. 19
6.1.3.3 Maximum Gaussian elimination p. 20
6.1.4 On choosing the SDU size p. 20
6.1.4.1 Analysis p. 21
6.2 Streaming delivery method p. 21
7 Usage scenarios p. 22
7.1 Service Discovery/Announcement p. 22
7.2 MBMS download delivery method p. 23
7.2.1 Example: Video clip download service use-case p. 23
7.2.1.1 Use-case description p. 23
7.2.1.2 Announced Metadata Fragments p. 24
7.2.1.3 Reception of a video clip p. 25
7.2.1.4 File Repair procedure p. 26
7.2.2 The usage of the MBMS session Identity in file download delivery p. 28
7.2.2.1 Introduction p. 28
7.2.2.2 Example 1: Usage of the Session ID to detect repetition p. 29
7.2.2.3 Example 2: Declaration of files of a different MBMS bearer session in the FDT p. 30
7.2.2.4 Example 3: Declaration of files of an MBMS bearer session in several FDT Instances p. 31
7.2.3 Partial File Delivery from MBMS Receiver to DASH Client p. 31
7.2.4 Communication between MBMS Client and DASH Client p. 31
7.3 MBMS streaming delivery method p. 31
8 Codecs and formats p. 32
A MBMS Forward Error Correction performance p. 33
A.1 Theoretical performance p. 33
A.2 Simulation results p. 33
A.2.1 Simulation conditions and assumptions (UTRAN) p. 34
A.2.2 Simulation conditions and assumptions (GERAN) p. 35
A.2.3 Simulation results: UTRAN download p. 36
A.2.4 Simulation results UTRAN streaming p. 37
A.2.5 Simulation results GERAN download p. 37
A.2.6 Simulation results GERAN streaming p. 38
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