1. CLUE Use Cases 02 – comments and proposal
Interim meeting February 2012 Gyubong Oh

2. Presentation Use Case Presentation in CLUE
Audio/Video streams+ Presentation stream
Video presentation control
H.323 system – H.239
SIP system, BFCP (Binary Floor Control Protocol) [RFC4582] for presentation token.
Single presentation stream

3. Presentation Use Case Analysis Proposal
Limitation of BFCP
Single presentation support
Limited interaction i.e. half-duplex
Organizer manages all presentation control
No dynamic, simultaneous interaction in current Presentation Requirement
REQMT-15: The solution MUST support mechanisms for presentations in such a way that:
Presentations can have different sources
Presentations can be seen by all
There can be variation in placement, number and size of presentations
Proposal
Presentation can be managed by all, in dynamic.
Use Case Scenario of the proposal
the manager and his assistant may want to draft their document on presentation under the telepresence environment.
If both can work it in a real-time on the same document, it absolutely provides the effectiveness.

4. Multiple Devices Use Cases
Previously,
Per-Device (e.g. handheld, phone, PC etc) media rendering based on the resolution/bandwidth
Requirement for Use case heterogeneous and multipoint.
REQMT-10: The solution MUST make it possible for endpoints without support for telepresence extensions to participate in a telepresence session with those that do.
REQMT-11: The solution MUST support a mechanism for determining whether or not an endpoint or MCU is capable of telepresence extensions.
REQMT-12: The solution MUST support a means to enable more than two sites to participate in a teleconference.
Analysis
No multiple streams handling
Use case heterogeneous and multipoint covers telepresence extenstions
No way to distribute multiple media streams under multiple devices
Proposal
Media steam distribution by MCU or endpoint during telepresnece session
Use Case Scenario of the proposal
If the user wants to get two media stream at each device, MCU or endpoint sends AV streams to mobile and presentation to PC.