Ericsson SVP 2000, Reference Manual, Page: 20 / 196

Introduction
1.4 Characteristics of IP Transfer Mechanisms
1.4.1 Quality of Service
Scalable video systems need multi-rate delivery to ensure optimal Quality of
Service. An SVP 2000 Video Processor pair is able to generate up to five variant
video streams. To cover a wide range of bandwidth use cases, those variant
streams typically have decreasing bit rate, resolution and/or frame rate.
Note: Multi rate audio is not supported.
The SVP 2000 Video Processor pair is able to seamlessly switch between those
variants streams, to resist network glitches and bandwidth changes.
1.4.2 Video Latency
In the contribution market, there are basically two types of content:

one that CANNOT tolerate any latency e.g. major sporting events like Olympics,
World cups, and

content that CAN tolerate latency like pre-packaged programs, tier-2 sports
content, PEG (Public, Educational and Government) channels.
The SVP 2000 solution may be applicable for some markets (e.g. breaking news)
where live streams are required. However predominantly it is aimed where delays in
video are acceptable.
The SVP 2000 introduces some delays and as such from the time the video is
received, encoded, transmitted, decoded and pictures obtained, there will be some
delays.
1.4.3 Typical Use Cases
The following lists some of the uses for SVP 2000 system:

Regional News Bureaus
- Broader news coverage
A sub-set of regional news case is breaking news. Here the operator would
like to get a van out to the location. The reporter/camera operator would
connect the SVP 2000 using a public network back to the studio which could
even be a 3G network. As the IP network bandwidth could be variable, the
quality of the contributed video would vary. This may be fine for the initial
news story as they would be on site while events are happening. However,
the unit is able to store the highest profile on an attached USB. Once the
story has been contributed, the highest profile can be uploaded in non-real
time back to the studio. In this way the highest quality content is available for
subsequent bulletins.
EN/LZT 790 0046/1 R1A 1-12