文档介绍：CHINA BROADBAND TRIPLE
PLAY/IPTV FORUM 2005
Enabling IPTV-Ready: works with VDSL2
N e v e r s t o p t h i n k i n g .
Market Trends – Triple-play Services Drive the Market
NEW services Next e:
VoIP is growing fast due to cheap telephony
(non-PC driven)
New video services are attracting a
broad audience
ics Research Nov. 2004:
Network Replacement
“Most Asian carriers have plans for
convergence of data, voice, and video
Major carriers are starting to within next 2 to 5 years; carriers in Japan
REPLACE their work and Korea have been particularly aggressive
in rollouts of triple works and
with a new, DSL+IP-based services”
infrastructure, . to save “’TV-centric’ triple play is ing the
operating expenses blueprint for broadband service providers in
Europe”
“(In North America) RBOCs and MSOs
21st work battle for triple play dollars, capturing a
household’s munications budget”
Today’s IPTV and Triple Play Services Requirements
Up/Down-stream data rates
– Down: minimum 3xHDTV + Voice + fast →~30 Mbps (18Mbps +
128kbps + 10Mbps)
– Up: Upload of pictures/movies + Voice + online gaming → 5Mbps
Video services in enhanced quality (HDTV)
Voice services with high QoS and no latency
Online gaming with no delay or disturbances
Capable for mass deployment
– patibility and interoperability to existing ADSL
networks
– Field proven ADSL/2+ quality of service (QoS)
– ADSL-like long reach capability To reach as many subscribers
as possible
ADSL2+/VDSL1 do not fufill these requirements
Existing High Speed Technologies Do Not Solve the Problem
of Bottlenecks…
100 Data rate
[Mbit/s] Design for short loop applications
(MDU/MTU) applications only
60
V Real bit rates are too low for
D
S multiple (3) HDTV channels
L
20
Low bit rates are insufficient for
Triple-Play applications
AD
8 SL2+
2 SHDSL
1 km 2 km 3 km 4 km 5 km Line Length
VDSL2 = VDSL Speeds with