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Member
Reputation: 49
Major Difference between 2G and 3G
Hi Guys,
Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.
Let me start first.
1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz
2) Signalling, Interface and Architecture difference
I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.
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2010-11-19 01:17 AM
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Member
Reputation: 172
Re: Major Difference between 2G and 3G
Originally Posted by
arban
Hi Guys,
Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.
Let me start first.
1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz
2) Signalling, Interface and Architecture difference
I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.
Data services.....2G is mainly voice data ..3G like R99,HSDPA,HSPA+ and LTE....data services
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Member
Reputation: 177
Re: Major Difference between 2G and 3G
Also Bandwidth
GSM has 200 kHz
WCDMA has 5000khz
Originally Posted by
haq_enam
Data services.....2G is mainly voice data ..3G like R99,HSDPA,HSPA+ and LTE....data services
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Member
Reputation: 177
Re: Major Difference between 2G and 3G
Fast power control
2G has 2Hz
3G has 1500Hz
Originally Posted by
arban
Hi Guys,
Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.
Let me start first.
1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz
2) Signalling, Interface and Architecture difference
I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.
-
Member
Reputation: 49
Re: Major Difference between 2G and 3G
Originally Posted by
arban
Hi Guys,
Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.
Let me start first.
1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz
2) Signalling, Interface and Architecture difference
I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.
3G has hard hand over, soft hand over, and softer handover
2G only has hard hand over
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Member
Reputation: 238
Re: Major Difference between 2G and 3G
Hi
let me share my little knowledge
1)3G came as data requirment came more or requirment over air interface and mobility came strong .
2)with 200Khz in 2G and with Modulation techinques it is not possible to cop up with Higher data rates.
Regards
Plannerguy
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Member
Reputation: 38
Re: Major Difference between 2G and 3G
The penentration point of view:
2g cover lager footprint while 3g cover less footprint this is due to their operation frequency
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Member
Reputation: 238
Re: Major Difference between 2G and 3G
Hi luganomu
But there is a catch ie the RX senstivity of BTS in GSM 2G is -110 and in case of 3G its -126 also the RX sensivity or 2G GSm phones according GSM spec of rel 3gpp is -102 db while 3G is -114 db
So footprint cannot be just assumed on frequency, also you can operate 3G on 900 band .
But the service provdided at longer distance may vary due to Power ! ie which is a main limiting factor in 3G.
Regards
Plannegruy
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Senior Member
Reputation: 591
Re: Major Difference between 2G and 3G
Originally Posted by
arban
Hi Guys,
Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.
Let me start first.
1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz
2) Signalling, Interface and Architecture difference
I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.
3G employs a fat pipe, which improves delivery to the user. Also, a wideband channel is more resilient to fading. Also, 3G allows us BW-Power trade off. Hence, it is possible to receive signal levels lower than the ambient noise (interference).
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BannedUser
Reputation: 970
Re: Major Difference between 2G and 3G
- 3G provides high speed packet data rate in several Mbps
- 3G uses wideband vs narrow band of 2g gsm
- 3G use the spread spectrum vs gsm 2g tdma
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