Edge technology

EDGE TECHNOLOGY AN EVOLUTION IN MOBILE TECHNOLOGY

History ,[object Object],[object Object],[object Object],[object Object]

Then Came Digital……….. AMPS CDPD 1G 2G CDMA TDMA GSM IDEN 2.5G GPRS 1XRTT 3G 1X-EVDO EDGE WAN LAN 802.11

Introduction ,[object Object],[object Object]

Topics of Discussion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mobile evolution ,[object Object],[object Object],[object Object],[object Object],[object Object]

EDGE Technology ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],EDGE

2.5G (Between 2G and 3G) ,[object Object],[object Object],[object Object],[object Object]

GPRS ,[object Object],[object Object],[object Object],[object Object],[object Object]

2.5G characteristics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GPRS shortcomings ,[object Object],[object Object],[object Object]

Courtesy: http://www.gsmworld.com/technology/index.shtml

EDGE System Performance Probability throughput < = X per timeslot X (kb/s) 26 users/sector at 3.84 kbps average load per user Probability packet delay < = X X (msec) % %

EDGE Channel Coding and Frame Structure 464 bits 1 data block Convolution Coding Rate = 1/3 Length = 7 Puncture Interleave Burst N Burst N+1 Burst N+2 Burst N+3 Burst Format 8PSK Modulate 1392 bits 1392 bits 348 bits/ burst 348 bits 468.75 bits 156.25 symbols/slot 0 1 2 3 4 5 6 7 8 Time Slots 1 Time Slot = 576.92 µs Tail symbols 3 Data symbols 58 Tail symbols 3 Data symbols 58 Training symbols 26 Guard symbols 8.25 Modulation: 8PSK, 3 bits/symbol Symbol rate: 270.833 ksps Payload/burst: 348 bits Gross bit rate/time slot: 69.6 kbps - overhead = 59.2 kbps user data 20 msec frame with 4 time-slots for each of 8 bearers

Some of the generation mobile phones ,[object Object]

Personal Digital Assistants & 2.5 G phones Wireless via Bluetooth Internet Wireless via GPRS

Combined PDAs and 2.5 G phones

Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Application cont ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Application cont ,[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object]

Conclusion cont ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

THANK YOU THANK YOU FOR YOUR PRECIOUS TIME

Edge technology

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