4G networks began rolling out in 2010 using an IP-based protocol to provide faster data transmission than previous cellular generations. Major mobile operators like T-Mobile, Orange, and Vodafone partnered with equipment manufacturers like Alcatel-Lucent, Nokia Siemens, Nortel, and Ericsson on the LTE project to develop 4G technology. However, 4G networks faced some problems and challenges providing universal high-speed mobile internet access.

1. 4G
VSU

2. - Basic concepts
- Development
- Problems
- Content

3. •-1G - analog cellular
networks, 1970s
•-2G - network digital
transmission data 1980s
•-3G - based on CDMA, 2000s
•-4G - IP-based protocol, since
2010

4. Wi-Fi WiMAX
4G

6. LTE project
Operators:
• T-Mobile International
• Orange
• Vodafone Group
Manufacturers of mobile equipment:
• Alcatel-Lucent
• Nokia Siemens Networks
• Nortel Networks
• Ericsson

7. Problems

8. Content

9. 4G
e-mail:
tel: