Generation overview drive test optimization
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Transcript of Generation overview drive test optimization
SEMINAR
ON
GENERATION OVERVIEW $ DRIVE TEST OPTIMIZATION
Submitted By:
Sanjay Kumar ECE (C2) 11100388
1G --ANALOG MOBILE TELEPHONE SYSTEM
Features: Analog signal Frequency division multiple access (FDMA)
Narrow band
2G --DIGITAL MOBILE TELEPHONE SYSTEM
Features: Digital signal Time division multiple access (TDMA)
Narrow code division multiple access (N-CDMA)
Narrow band
3G -- IMT-2000 (UMTS)
Features: Digital signal Code division multiple access (CDMA)
Broadband
MOBILE GENERATION FROM 1G TO 3G
WHAT IS 3G ALL ABOUT?
Technology?Individual new services?
3G is about improving the end user experience
Doing things: BETTER FASTER NEW
3G VISION
Same set of services
realize global roaming
single network architecture
One World, One Vision, One Network
WCDMA ~ WHAT ?
Wideband Code Division multiple Access Or
UMTS-FDD / UTRA-FDDOr
IMT-2000 CDMA Direct Spread
An air interface standard found in 3G mobile telecommunications networks.
DATA SERVICES OVER WIRELESS
WCDMA BENEFITS
Support for higher bit rates. BW on demand Asymmetric Data Rates Higher spectrum efficiency. Improved Trunking efficiency.
Higher QoS.
3G LONG TERM EVOLUTION
WCDMA(UMTS)
HSPA
HSDPA/HSUPA
HSPA+ LTE
MAX DOWNLINK SPEED (bps)
384K 14m 28m 100m
MAX UPLINK SPEED (bps)
128K 5.7m 11m 50m
3G V/S 4G
1.Data Throughput:
2. Peak Upload Rate:
3. Peak Download Rate:
4. Services And Applications
5. Frequency Band:
Up to 3.1Mbps with an average speed range between 0.5 to 1.5 Mbps
5 Mbps
100 Mbps
CDMA 2000, UMTS, EDGE etc
1.8 – 2.5GHz
Practically speaking, 2 to 12 Mbps but estimated at a range of 100 to 300 Mbps.
500 Mbps
1 Gbps
LTE-Advance
2 – 8GHz
2G,3G,4G……??????????
2G and 3G networks designed-voice communications rather than data
4G is designed especially for data transmission rather than voice
DRIVE TEST AND OPTIMIZATION
1. SWAP2. ORIENTATION3. TILT (M + E)4. SWAP CLEAR
Thank you.