Andmeside IRT 0030 loeng 9 - lr.ttu.ee · 131 Andmeside IRT 0030 loeng_9 Avo 27. okt. 2010...
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Transcript of Andmeside IRT 0030 loeng 9 - lr.ttu.ee · 131 Andmeside IRT 0030 loeng_9 Avo 27. okt. 2010...
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Video vooülekanne
Media Server (Pre-Encoded Video)
Radio Network Controller
RNC
MAC Scheduling at Base Station
Mobile User Mobile User
High bandwidth
133
Mobile vs Broadcast
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)
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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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
Teenuse tagamine
137
Service ManagementUser Management
User Profile Storage
Addressing and Routing
Qos
enhancement
SecurityNAT/FW
traversal
Mobility Management
138
Kuidas signaali levitada
+18 dBi
Tower A Tower B
BROADCAST NETWORK: FROM FIXED TV …
MOBILE NETWORK: FROM MOBILE UNICAST …
++
+
++
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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
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
NEO 1973 vs Neo Freerunner
NEO Freerunner
142
Skeemilahendus
143
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/
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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Transpordivood tükeldusele
147
Aja liistakud
148
Sagedusalad ( ... aga)
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
