andmeside irt 0030 loeng 9 - lr.ttu.ee · 131 andmeside irt 0030 loeng_9 avo 27. okt. 2010...
TRANSCRIPT
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132
Video vooülekanne
Media Server (Pre-Encoded Video)
Radio Network Controller
RNC
MAC Scheduling at Base Station
Mobile User Mobile User
High bandwidth
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133
Mobile vs Broadcast
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Lairibateenused
134
Content
owners
Delivery
network
Content
and
revenue
security
Subscriber
mgmt
Stream
and VOD
mgmt
Middle-
ware
and
apps
Client
Devices
System Integration
Broadband Service Provider (BSP)
/Internet Service Provider (ISP)
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135
Kus ja mis teenus
Sharing(one-to-some)
Service Coverage area
User density
3G MBMS
DVB-HMulticast
Publishing(one-to-many)
3GP-t-P
BoundaryArea
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136
DVB-H
Digital Video
Broadcasting
Handhelds
T-DMB
Terrestrial
Digital
Multimedia
Broadcasting
S-DMB
Satellite Digital
Multimedia
Broadcast
MBMS
Multimedia
Broadcast
Multicast
Service
MediaFlo
Media
Forward
Link Only
Region Europe, USA,
AustraliaSouth Korea
South Korea,
Japan
Europe,
South AsiaUSA
Video
CodecMPEG-4 MPEG-4 MPEG-4 MPEG-4 MPEG-4
Channels 60 3-5 9-27 3 50-70
Cell Size 17-40km 40-60km 3-700km 2-3 km 2-10km
Power
ReductionTime slicing
Bandwidth
shrinking
Bandwidth
ShrinkingTime slicing
Time division
multiplexing
Transport
streamMPEG TS, IP MPEG TS IP IP MPEG, IP
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Teenuse tagamine
137
Service ManagementUser Management
User Profile Storage
Addressing and Routing
Qos
enhancement
SecurityNAT/FW
traversal
Mobility Management
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138
Kuidas signaali levitada
+18 dBi
Tower A Tower B
BROADCAST NETWORK: FROM FIXED TV …
MOBILE NETWORK: FROM MOBILE UNICAST …
++
+
++
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139
Sagedusressurss (UMTS tarvis)
20 (35) MHz for TDD
2 * 60 MHz FDD (190 Mhz)
1850
1900
2000 2050 2100 2200 2250
20 20 60 30 15 30
DECT
MHz
GSM 1800
60
1920 2110
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IP datacast
140
Physical LayerPhysical Layer
Data Link LayerData Link Layer
Network LayerNetwork Layer
Transport LayerTransport Layer
Session LayerSession Layer
Presentation LayerPresentation Layer
Application LayerApplication Layer
IPIP--DatacastDatacast
DVBDVB--HH DMBDMB UMTSUMTSGSMGSM
ESG
Service Purchase
& Protection
Content
DeliveryQoS
Content
Formats
PSI/SI
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NEO 1973 vs Neo Freerunner
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NEO Freerunner
142
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Skeemilahendus
143
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Kus ja mis tehtud (1)
• http://en.wikipedia.org/wiki/Openmoko
• http://wiki.freesmartphone.org/index.php/M
ain_Page
• http://conversations.nokia.com/2010/04/27/
nokia-rolls-out-qt-sdk-for-unified-mobile-
developer-experience/
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Kus ja mis tehtud (2)
• http://www.matroska.org/index.html
• http://sourceforge.net/projects/matroska/
• http://en.wikipedia.org/wiki/Android_(opera
ting_system)
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146
Transpordivood tükeldusele
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147
Aja liistakud
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148
Sagedusalad ( ... aga)
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149
Lingid (9)
http://www.lr.ttu.ee/~avots/Seadme_naide.pdf
http://www.dvb-h.org/
http://www.orange.com/en_EN/press/press_rel
eases/cp100622en2.jsp
http://www.ltu.edu/computer_center/hardwaret
60.asp