1G-First Generation Mobile Communication System Data capacity: 2Kbps
Technology: Analog Wireless
Standard: AMPS
Multiplexing: FDMA
Switching type: Circuit
Service: Voice only
Main Network: PSTN
Handoff supported: Horizontal
Frequency: 800 to 900MHz 2G-Second Generation Mobile Communication SystemData capacity: 10Kbps
Technology: Digital Wireless
Standard: CDMA, TDMA, GSM
Multiplexing: TDMA, CDMA
Switching type: Circuit
Service: Voice and data
Main Network: PSTN
Handoff supported: Horizontal
Frequency: 850MHz to 1900MHz(GSM) and 825MHz to 849MHz (CDMA)
Following sections mention difference between 2.5G and 2.75G. 2.5GData capacity: 200Kbps
Technology: GPRS
Standard: Supported TDMA/GSM
Multiplexing: TDMA, CDMA
Switching type: Packet Switch
Service: MMS internet
Main Network: GSM TDMA
Frequency: 850MHz to 1900MHz
2.75GData capacity: 473Kbps
Technology:EDGE
Standard: GSM,CDMA
Multiplexing: TDMA, CDMA
Switching type: Packet Switch
Main Network: WCDMA
Frequency: 850MHz to 1900MHz 3G-Third Generation Mobile Communication SystemData capacity: 384Kbps
Technology:Broadband/IP technology, FDD and TDD
Standard: CDMA,WCDMA,UMTS,CDMA2000
Multiplexing: CDMA
Switching type: Packet and Circuit Switch
Service:High speed voice, data and video Main Network: Packet Network
Handoff: Horizontal
Frequency: 1.6 to 2.5 GHz
Refer 2G vs 3G for difference between 2G and 3G. 2G stands for 2nd generation wireless technologies,for example GSM standard falls under this category.
3G stands for 3rd generation wireless technologies, for example CDMA,HSPA falls under this category.
3.5GData capacity: 2Mbps
Technology:GSM/3GPP
Standard: HSDPA/HSUPA
Multiplexing: CDMA
Switching type: Packet Switch
Service Type: High Speed Voice/Data/Video Main Network: GSM, TDMA
Handoff: Horizontal
Frequency: 1.6 to 2.5 GHz
3.75GData capacity: 30 Mbps
Standard:1XEVDO
Multiplexing: CDMA
Switching type: Packet Switch
Service: High speed internet/ Multi-media
Handoff type: Horizontal
Frequency: 1.6 to 2.5 GHz
4G-Fourth Generation Mobile Communication SystemThis generation of systems are totally IP based technology with capacity of 100Mbps to 1Gbps. It is used for both indoor and outdoor applications. The main function of 4G technology is to deliver high quality, high speed, high capacity, low cost services. It is mainly used for voice, multimedia and internet over IP based traffic. difference between 3G and 4G technologies. Specifications | 3G | 4G | Full form | Third Generation | Fourth Generation | Switching | Circuit and Packet Switching | All digital with packetized voice | RF Frequency Band | About 1.8 to 2.5GHz | About 2-8 GHz | RF Bandwidth | 5-20 MHz | 100 MHz and more. | Data rate | 384 kbps- 2 Mbps | 20-100Mbps in mobile | Applications | Mainly Voice along with data | Converged Data and VOIP | Technologies supported | EGDE,EGPRS,WCDMA,HSPA,HSPA+,CDMA2000 | Mobile WiMAX,LTE,LTE-Advanced | network architecture | Wide area cell based | Integration of wireless LAN and Wide Area Network | Forward Error Correction technique used | turbo codes | Concatenated codes | Video Access | Provides video access to users | provides HD video access to users | Virtual presence | Not available | It is possible | Navigation | Digital navigation provided | Virtual navigation provided |
5G-Fifth Generation Mobile Communication SystemThese 5th generation of systems are driven by OFDM, MC-CDMA, LAS-CDMA, UWB, Network LMDS and IPV6. Following table compares 4G vs 5G technologies and mentions difference between 4G and 5G wireless technologies. It mentions basic comparison between 4G and 5G.
Specifications | 4G | 5G | Full form | Fourth Generation | Fifth Generation | Data Bandwidth | 2Mbps to 1Gbps | 1Gbps and higher as per need | Frequency Band | 2 to 8 GHz | 3 to 300 GHz | standards | Al access convergence including OFDMA,MC-CDMA,network-LMPS | CDMA and BDMA | technologies | unified IP, seamless integration of broadband LAN/WAN/PAN and WLAN | Unified IP, seamless integration of broadband LAN/WAN/PAN/WLAN and advanced technologies based on OFDM modulation used in 5G | service | Dynamic information access, wearable devices, HD streaming, global roaming | Dynamic information access, werable devices, HD streaming, any demand of users | Multiple Access | CDMA | CDMA,BDMA | Core network | All IP network | Flatter IP network, 5G network interfacing(5G-NI) | Handoff | Horizontal and vertical | Horizontal and vertical | Initiation from | year-2010 | year-2015 |
6G Mobile Communication System6G systems will have integration of 5G along with satellite network. Following are the satellite systems developed in different countries:
• GPS (by USA)
• COMPASS (by China)
• Galileo (by EU)
• GLONASS (by Russia)
It supports local vocie coverage and other features. 7G Mobile Communication SystemThe 7G network will be same as 6G. In addition 7G defines satellite functionalities in wireless mobile communication. This will provide many features and take care of all the drawbacks of previous generation of mobile wireless communication systems. The major factor here will be cost of phone call and other services. It provides seamless movement of mobile phone from one country to the other. This will be major benefits for frequent international travellers. |