WIRELESS GENERATION EVOLUTION

1G

从1980至1990

frequency: 150MHz/900MHz

bandwidth: Analog telecomunication

Characteristics : First wireless communication

Technology : Analog cellular

Capacity Data Rate : 2kbps

Bad voice quality, poor battery, big cellphones

2G

从1990至2000

Allow text message service

Frequency : 1.8GHz (900MHz)

Characteristics : Digital

Technology : Digital cellular, GSM

Signal must be strong

Capacity data : 64kbps

2.5G

2G cellular technology with GPRS

E-mails
Web Browsing

Camera Phone

3G

从2000至2010

Frequency : 1.6 – 2.0 GHz

Capacity data rate : 144kbps-2 Mbps

Characteristics : digital broadband, increase speed

Technology : CDMA, UMTS, EDGE

Called smartphones

support location based services (service provider sends localised weather / send traffic conditions to phone)

support video conferencing

fast communication

video calls

4G

从2010至2020

Frequency : 2-8 GHz

Characteristics : High speed, all IP based protocols

Technology : LTE, Wi-FI

Bigger battery usage

Capacity Data Rate : 100Mbps – 1Gbps

Mobile multimedia, anytime anywhere can use, global mobile support, integrated wireless solution

5G

从2020至?

High speed and capacity

Faster data transmission

More efficients

Support : interactive multimedia, voice streaming, buckle up internet

Capacity data rate : 1Gbps - UNLIMITED

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