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4G vs 5G-Difference between 4G and 5G

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發表於 2017-11-29 06:02:05 | 只看該作者 回帖獎勵 |倒序瀏覽 |閱讀模式
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 System
Data 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.
2.5G
Data 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
2.75G
Data 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 System
Data 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.

3.5G
Data 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
3.75G
Data 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 System
This 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.
The technologies driving 4G growth are LTE and WiMAX. Refer difference between 3G and 4Gwireless technologies.
difference between 3G and 4G technologies.
Specifications3G4G
Full formThird GenerationFourth Generation
SwitchingCircuit and Packet SwitchingAll digital with packetized voice
RF Frequency BandAbout 1.8 to 2.5GHzAbout 2-8 GHz
RF Bandwidth5-20 MHz100 MHz and more.
Data rate384 kbps- 2 Mbps20-100Mbps in mobile
ApplicationsMainly Voice along with dataConverged Data and VOIP
Technologies supportedEGDE,EGPRS,WCDMA,HSPA,HSPA+,CDMA2000Mobile WiMAX,LTE,LTE-Advanced
network architectureWide area cell basedIntegration of wireless LAN and Wide Area Network
Forward Error Correction technique usedturbo codesConcatenated codes
Video AccessProvides video access to usersprovides HD video access to users
Virtual presenceNot availableIt is possible
NavigationDigital navigation providedVirtual navigation provided

5G-Fifth Generation Mobile Communication System
These 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.

Specifications4G5G
Full formFourth GenerationFifth Generation
Data Bandwidth2Mbps to 1Gbps1Gbps and higher as per need
Frequency Band2 to 8 GHz3 to 300 GHz
standardsAl access convergence including OFDMA,MC-CDMA,network-LMPSCDMA and BDMA
technologiesunified IP, seamless integration of broadband LAN/WAN/PAN and WLANUnified IP, seamless integration of broadband LAN/WAN/PAN/WLAN and advanced technologies based on OFDM modulation used in 5G
serviceDynamic information access, wearable devices, HD streaming, global roamingDynamic information access, werable devices, HD streaming, any demand of users
Multiple AccessCDMACDMA,BDMA
Core networkAll IP networkFlatter IP network, 5G network interfacing(5G-NI)
HandoffHorizontal and verticalHorizontal and vertical
Initiation fromyear-2010year-2015


6G Mobile Communication System
6G 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 System
The 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.
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