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زمينه هاي رشد شبكه موبايل نسل چهار (4G/LTE) در كشور علی...
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Transcript of زمينه هاي رشد شبكه موبايل نسل چهار (4G/LTE) در كشور علی...
زمينه هاي رشد شبكه موبايل نسل چهار
(4G/LTE) در كشور
علی فتوت احمدی، بابک خلج ، حسین جلیلی،
سیاوش کنعانیان، فواد اروانی ، الیاس سلیمان
دانشگاه صنعتی شریف1392 مرداد 23چهارشنبه
تخصصی کنفرانس سومينفناوری های نوين ارتباطی
LCTC 2013
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
Wireless Standards Complexity
ANY WHERE
ANY DEVICE
ANY TIME
ANY NETWORK
Bro
adcas
tW
MAN
Cellular
WLAN
WPA
N
SEAMLESS CONNECTIVITY
Navig
atio
n
GSM
GPRS
EDGE
UMTS HSDPA HSUP
A3.9G
4G
Cellular
802.16d
802.16e
WMAN802.11
b
802.11g
802.11a
802.11n
WLAN
UWB
RFID
Bluetooth®
WPAN
DVB-HISDB-T
DMB
Broadcast DTV
A-GPS Galileo
Navigation
FMHD DAB
Broadcast Radio
Without open wireless architecture, the wireless industry will be totally messed-up
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
Cellular Generations 1G, 2G, 3G, 4G
Generation Definition Throughput Technologies
1G Analog 14.4 kbps (peak) AMPS,NMT,TACS
2G Digital(Narrow band Circuit Data)
9.6/14.4 kbps(peak) TDMA, GSM, CDMA
2G Transitional Packet Data 114/236.8 kbps(peak)
20-40 kbps HSCSD, GPRS, EDGE
3G Digital broadband packet data
3.1 mbps (peak)
500-700 kbpsUTMS,
CDMA2000 1XRTT
3G Transitional >2mbps 3.6/7.2/14.4 mbps(peak)
1-3 mbpsHSPA,
CDMA2000 EV-DO
4GDigital broadband
packet basedAll IP (VOIP)
100 – 300 mbps (peak)
3-12 mbps
LTE AdvancedWiMax Advanced
HSPA+
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
Wireless World Map
System Application Distance Mobility Data rate
ZigBee Industrial Short Low Low (< 1 Mbps)
Bluetooth PC, Cell phone Short Low Medium ( 1 Mbps)
UWB Home appliances Short Low High ( > 50 Mbps)
WiFi PC network Medium Low High (> 100 Mbps)
WiMAX fixed Internet Service Long Low Medium
2/2.5 G Cellular Voice + low rate data Long Medium Low
3/3.5G Cellular Voice + Internet Long High Medium
4G Cellular WiMAX & LTE Voice + ?? Long High High
4G Advanced Voice + ?? + ?? Long High Very high ( > 200 Mbps)
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
LTE Evolution
2013/20142009/2010
GSM/GPRS
EDGE, 200 kHzDL: 473 kbpsUL: 473 kbps
EDGEevoDL: 1.9 MbpsUL: 947 kbps
HSDPA, 5 MHzDL: 14.4 MbpsUL: 2.0 Mbps
HSPA, 5 MHzDL: 14.4 MbpsUL: 5.76 Mbps
HSPA+, R7DL: 28.0 MbpsUL: 11.5 Mbps
2005/2006 2007/2008 2011/2012
HSPA+, R8DL: 42.0 MbpsUL: 11.5 Mbps
cdma2000
1xEV-DO, Rev. 0 1.25 MHzDL: 2.4 MbpsUL: 153 kbps
1xEV-DO, Rev. A 1.25 MHzDL: 3.1 MbpsUL: 1.8 Mbps
1xEV-DO, Rev. B 5.0 MHzDL: 14.7 MbpsUL: 4.9 Mbps
HSPA+, R9DL: 84 MbpsUL: 23 Mbps
DO-AdvancedDL: 32 Mbps and beyondUL: 12.4 Mbps and beyond
LTE-Advanced R10DL: 1 Gbps (low mobility)UL: 500 Mbps
Fixed WiMAXscalable bandwidth1.25 … 28 MHztypical up to 15 Mbps
Mobile WiMAX, 802.16eUp to 20 MHz DL: 75 Mbps (2x2)UL: 28 Mbps (1x2)
Advanced MobileWiMAX, 802.16mDL: up to 1 Gbps (low mobility)UL: up to 100 Mbps
VAMOSDouble SpeechCapacity
HSPA+, R10DL: 84 MbpsUL: 23 Mbps
LTE (4x4), R8+R9, 20MHzDL: 300 MbpsUL: 75 Mbps
UMTSDL: 2.0 MbpsUL: 2.0 Mbps
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
و باالخره همگرائی استاندارد ها پس از سالها
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
What is 4G?
• 4th Generation of Mobile communications– First Gen Analog, AMPS– 2G, Digital, IncreaseVoice Capacity- TDMA, GSM & 1xRTT– 3G High Speed Data; EVDO, UMTS, HSPA
• ITU defines 4G as 100 Mbps mobile, 1 Gbps stationary– LTE-Advanced & WiMax 2.0 4G certified, theoretically capable– Realistic? Nokia lab demo w/ 8 antennas, 60 MHz & 1 user
• Market 4G defined as ~10X 3G or 5-10+ Mbps
• Current gen WiMax, LTE & HSPA+
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
LTE Releases
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
4G Technical Requirements
• Increase data rate (100 Mbps downlink / 50 Mbps uplink)
• Improve wireless performance (Better reception and coverage)
• Increase spectrum efficiency (More subscribers and more data)
• High flexibility of allocation (Quick adjust of data rate)
• Spectrum flexibility (Several bandwidths can be used)
• Optimized for low speed ( Best at < 20 km/hr & support up to 350 km/hr)
• Add Multi-Cast and Broadcast Services (Broadcast services like TV)
• Faster call setup
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
WiMAX vs LTE Parameters
Parameter WiMAX LTE
Duplex method TDD FDD and TDDBandwidth 5 and 10 MHz 1.25, 3, 5, 10, 15 & 20 MHzFrame size 5 ms 10 ms with 10 sub-frames
Multiplex Access DL OFDMA OFDMA
Multiplex Access UL OFDMA SC-FDMA
Scheduling speed Every frame (5 ms) Every sub-frame (1 ms)
Subcarrier spacing 10.9 kHz 15 kHzMaximum DL Data rate
(SISO) 46 Mbps (10 MHz band) 50 Mbps (10 MHz band)
Modulation QPSK, 16QAM, 64 QAM QPSK, 16QAM, 64 QAM
Coding for user data Convolution or Turbo Turbo
Diversity MIMO up to 2x2TD & SM
MIMO up to 4x4TD & SM
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
LTE freq. bands (FDD/TDD)E‑UTRA
OperatingBand
Uplink (UL) operating band Downlink (DL) operating band
FUL_low – FUL_high [MHz] FDL_low – FDL_high [MHz]
1 1920 – 1980 2110 – 2170
2 1850 – 1910 1930 – 1990
3 1710 – 1785 1805 – 1880
4 1710 – 1755 2110 – 2155
5 824 – 849 869 – 894
6 830 – 840 875 – 885
7 2500 – 2570 2620 – 2690
8 880 – 915 925 – 960
9 1749.9 – 1784.9 1844.9 – 1879.9
10 1710 – 1770 2110 – 2170
11 1427.9 – 1452.9 1475.9 – 1500.9
12 698 – 716 728 – 746
13 777 – 787 746 – 756
14 788 – 798 758 – 768
17 704 – 716 734 – 746
18 815 – 830 860 – 875
19 830 – 845 875 – 890
20 832 - 862 791 - 821
21 1447.9 - 1462.9 1495.9 - 1510.9
22 3410 - 3500 3510 - 3600
E‑UTRA Operating
Band
Uplink (UL) operating band
Downlink (DL) operating band
FUL_low – FUL_high [MHz] FDL_low – FDL_high [MHz]
33 1900 – 1920 1900 – 1920
34 2010 – 2025 2010 – 2025
35 1850 – 1910 1850 – 1910
36 1930 – 1990 1930 – 1990
37 1910 – 1930 1910 – 1930
38 2570 – 2620 2570 – 2620
39 1880 – 1920 1880 – 1920
40 2300 – 2400 2300 – 2400
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
LTE bands cont.
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013
LTE Spectrum
Downlink Uplink
OFDMA SC-FDMA
تحقیقاتی کاوشکام آسیا 1392 مرداد 23 3rd LCTC 2013