4G Technology

4G TechnologyAli Mohammad Hossein Zadeh (1101600641)FCM – April 2011

2Overview

1. 0G

2. 1G

3. Cellular Telephone System

4. 2G

5. TMDA and CMDA

6. 2G Evolution

7. 3G

9. 4G Requirements by ITU

10. 3G vs. 4G

11. 4G discontinued candidate systems

12. Clear 4G?13. P1 4G?14. What we have now?15. 4G candidates16. 4G in Malaysia17. Key Technologies for 4G18. OFDMA19. MIMO20. How WIMAX is better21. How LTE is better22. References

30G or Mobile Radio Telephone

Predecessors of cellular telephones

Based on radio frequencies

Transmitter-Receiver (transceiver) with Antenna

Technologies: PTT, MTS, IMTS, AMTS

Mounted in Cars, Trains, Ships

Different power based on platform

41G

Cellular Telephone System

Analog, Voice Only, Digital signaling

First lunched in Japan by NTT, 1979

Voice modulated to higher frequency 150 MHz and up

1st international roaming

Different technologies in different countries: NMT, Hicap, Mobitex, DataTAC

5Cellular Telephone System

Mobile Telephone

Switching OfficeBase Transceiver

StationPublic Switched

Telephone Network

62G

1st lunched in Finland by Radiolinja, 1991

Conversations encrypted digitally, SMS, E-Mail

Digital Signals > Compressing > Increase system capacity

Less radio Power > Smaller Devices

Technologies: Time division multiple access (TDMA), Code division multiple access (CDMA)

7TDMA and CDMA

TDMA

CDMA

82G Evolution

2.5G– General Packet Radio Service (GPRS)

• Standardized by ETSI• Data rates from 56 kbit/s up to 115 kbit/s• Wireless Application Protocol (WAP)• Multimedia Messaging Service (MMS)• Internet communication services• Sending SMS faster

92G Evolution

2.75G– Enhanced Data rates for GSM

Evolution (EDGE)• Standardized by 3GPP• higher-order PSK/8 phase shift keying• Incremental Redundancy• Data rates up to 236.8 kbit/s

– Evolved EDGE• Bit rates are increased up to 1 MBit/s peak

bandwidth• Latencies down to 80• Signal quality is improved

103G

1st lunched in Japan by NTT, 2001

Data rate of 2 Mbit/s for stationary users and 384 kbit/s in a moving vehicle

Security

Wide-area wireless voice telephone

Video calls

Mobile TV

113G vs. 4G

124G Requirements by ITU

100 Mbit/s moving users and 1 Gbit/s stationary users

IP packet-switched network

More users per cell

Smooth handovers across heterogeneous networks

Offer high quality of service for next generation multimedia

13Clear 4G?

14P1 4G?

15What we have now?

LTE– Long Term Evolution– A project by the 3rd Generation Partnership

Project (3GPP)

WiMax– Worldwide Interoperability for Microwave

Access– A project by the Institute of Electrical and

Electronics Engineers (IEEE)

164G discontinued candidate systems

3GPP Long Term Evolution (LTE)

Mobile WiMAX (IEEE 802.16e)

UMB (formerly EV-DO Rev. C)

Flash-OFDM

iBurst and MBWA (IEEE 802.20)

174G Candidates

In 2009 these technologies submitted to ITU as 4G candidates:

LTE Advanced– Not a new technology– Will be ready in 2012– Standardized by 3GPP

IEEE 802.16m or WirelessMAN-Advanced– Under development– Standardized by IEEE

18Key Technologies for 4G

Orthogonal frequency-division multiple access (OFDMA)

multiple-input and multiple-output (MIMO)

Both are use in LTE Advanced and WirelessMAN-Advanced

19OFDMA

OFDMA can also be described as a combination of frequency domain and time domain multiple access, where the resources are partitioned in the time-frequency space, and slots are assigned along the OFDM symbol index as well as OFDM sub-carrier index.

20MIMO

The technology where there are multiple antennas at the base station and multiple antennas at the mobile device.

Multiple antennas at both the base station and terminal can significantly increase data rates with sufficient multipath

214G in Malaysia

19th November,2010, Yes4G WiMAX luched by YTLC– 5X faster then 3G (note 3g is only 384kbps)

5th of April,2011, P1 , world’s first WIMAX-Long Term Evolution Time Division Duplex (LTE TDD)– On the peak downlink throughput in a cell, the

demo reached an impressive 130Mbps on a 20MHz band.

22How WIMAX is better

23How LTE is better

24Summary

Generation Definition Speed Real Speed Technology

1 Analog - - AMPS,NMT,...

2 Digital (Narrow Band Circuit Data)

9.6–14.4 kbps - TDMA-CDMA- GSM

2.5 Packet Data 171 kbps 20-40 kbps GPRS

3 Digital Broadband Packet Data

3.1 Mbps 500-700 kbps

CDMA2000-EDGE-UMTS

3.5 3.6 Mbps 1-3 Mbps HSPA

4 Digital Broadband Packet DataAll IP

100-300 Mbps 3-5 Mbps LTE Advanced- WiMaxMan Advanced

25References

Nishat Kabir, Rhituparna Paul, Tahnia Farheen (2008). 4G Mobile Architecture. Retrieved from http://salmandk.weebly.com/uploads/1/9/5/2/1952819/ug_thesis_on_4g_mobile_architechture.pdf

Allen H. Kupetz, K. Terrell Brown (2003). 4G - A Look Into the Future of Wireless Communications. Rollins Business Journal.

http://en.wikipedia.org/wiki/Mobile_radio_telephone

http://en.wikipedia.org/wiki/1G




http://www.youtube.com/watch?v=ESxAajD_nM0&feature=related

http://www.lteportal.com/

http://www.mybroadbandnews.com/

http://www.gsmworld.com/

Thank You

تشکر

谢谢

Dankشکرا

Terima kasih

ありがとう

Gracias

Grazie

ขอขอบคุ�ณ

Спасибо

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Education

4G Technology