Network- MOBILE TECHNOLOGIES

Good Afternoon boys

Now we will talking about the MOBILE TECHNOLOGIES.

The Google meet code for this session is:

meet.google.com/wyx-kspr-wqh



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By the end of the session , you will be able to:

• Understand the modern mobile technologies
• Understand the step by step improvement and the traits of each of these technologies
• Understand the future of mobile technologies (recent future).

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First generation mobile networks (1G) :

• reliant upon analog radio system
• users could only make phone calls - voice calls
• they could not send or receive text messages
• 1G Network was introduced in Japan in 1979 and USA in 1980
• Cellphones began with 1G technology in 1980s
• 1G is the first generation of wireless cellular technology 
• 1G is 
• analog technology
• phones using it had poor battery life
• poor voice quality
• little security
• were prone to dropped calls
• maximum speed of 1G technology is 2.4 Kbps

Second generation mobile networks (2G)  : SMS & MMS

• with technology upgrade from 1G to 2G, first major upgrade on cellphones took place
• introduced in Finland in 1991 on GSM Network
• catapulted cellphones from analog to digital communications
• 2G telephone technology introduced 
• call and text encryption
• data services such as SMS, pictures messages and MMS
• is even today used in many parts of the world 
• maximum speed of 2G with General Packet Radio Service (GPRS) is 50 Kbps
• speed is 1 Mbps with Enhanced Data Rates for GSM Evolution (EDGE)

Third generation; more data, video calling and mobile internet :

• 3G networks were introduced in 1998
• this steered in faster data transmission speeds
• cellphones were used in more data consuming functionalities such as 
• video calling
• mobile internet access
• the term "mobile broadband" was first applied to 3G cellular technology 
• the maximum speed of 3G is around 
• 2 Mbps for non moving devices
• 384 Kbps in moving devices
• 3G evolved into 3.5 and 3.75 G with higher speed and extra features

Fourth generation; the current standard :

• released in 2008
• supports 
• mobile web access
• gaming services
• HD mobile TV
• video conferencing
• 3D TV and
• other features that demand speed
• maximum speed of a 4G network 
• 100 Mbps when the device is moving
• 1 Gbps for low mobility communication such as caller is stationary or walking
• most current cellphone models support 4G and 3G technologies

Fifth generation; the future :

• wireless technology which is not yet implemented
• improvement on 4G
• promises 
• significantly faster data rates
• higher connection density
• much lower latency
• energy savings
• few other improvements

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