What is the difference between 2g and 3g technology?

Answer 1

2G is the GSM specification used to enhance the mobile whereas 3G communications is used for mobile users to have communication over voice with added Multimedia Applications with proportionate speed as well..,http://bit.ly/ouNC5C

First, about cellular generations. Having worked in the industry for a while, I have a narrower view what 1G, 2G, 3G, 4G, etc. mean. First 1G service was based on a TDM voice infrastructure -- built around class x switches and 64 kbps slots. It had data, but circuit switched over a 64Kpbs voice bearer.

Second, 2G service had the same switched TDM backbone, but added a true Data Bearer and a digital voice bearer. Data rates were still limited to the max 64kbps of a single time slot.

2.5G added a packet bearer to the mix, still limited to 64kbps slots.

Third generation (3G) changed the backbone slightly to allow a full T1 or E1 or J1 to be consumed by a data sub-scriber, but is still based on an ISDN style backbone. Sure you have packet switched data, but its carried over a traditional TDM backbone. There still a circuit voice backbone and while the data rates are high enough for VoIP, the latency of the data service is to great to base all of the "bearer services" on it, so you still have circuit voice, circuit data and packet data bearers.

Finally, 4G systems will utilize a packet infrastructure rather than a traditional telephone architecture. Services will be horizontally layered on top of a proper low latency, QoS enabled packet switch (read IP) infrastructure. Gone will be the circuit voice and circuit data bearers.

So "G" has more to do with the infra-structure and less to do with the data rates. The data rates over the air are driven by the organization of the infrastructure and other than that have little to do with what generation they are.

Answer 2

Assuming you're talking cell phones, a 3g connection will provide faster data access speeds than 2g...so on a data-capable phone, you'd be Surfing the internet faster if you're in a 3g area with a 3g phone. If you're in a 3g area with only a 2g phone, there's no advantage really, same thing if you're in a 2g area with a 3g phone.

Call quality wise, there may be differences, although I personally have not experienced this.

Answer 3

2.5G
- its a Transition between 2G and 3G, 2G standard was improved to 2.5G because at that time they needed to improve the standard but was still working on 3G technology so they made it to 2.5G because 3G was not completed
Advantages:

• GPRS (General Packet Radio Service) came alive in 2.5G
• • uses Packet switched architecture on circuit switched GSM network
  • Speeds up to 114KBPS probably more
• EDGE (Enhanced Data Rates for Global Evolution) Came alive in 2.5G
• • <384 KBPS
  • inexpensive deployment as it uses existing GPRS infrastructure
• Obsoletes the use of TDMA transmission and uses packet switching and circuit switching

3G
Advantages
- Faster Web browsing than 2.5G

- able to download at a high speed of over 2 MBPS
- Targets the following data rate based on micro-cells - 144kbits/s, macro-cells - 384kbits/s and pico-cells - 2048kbits/s


-uses WCDMA or CDMA2000 instead of TDMA


-Able to watch TV properly and any streaming media
- High efficiency


Disadvantages
- Low coverage thus having bottle necks because of the need to have more base stations
- High Prices for 3g Devices
-Confusion was what standard to use WCDMA or CDMA2000

Answer 4

3G has allowed for a brand new way of life among cell phone as well as handset users with consumers quickly hopping on this bandwagon and investing in 3G-powered mobile devices. 3G can change the way you view networks, with the different features and impacts. You could move forward and take advantage of the greatest details as well as gadgets by comprehending the operations and uses of the system, as well as the available networks.

The Different Functions

Individuals can perform a lot of operations like sending data and getting them via wireless capabilities. You can obtain data regardless of the time or location. 3G is the current mobile tech and is now the most rapidly growing host amongst mobile handsets, providing you with the higher speeds, in comparison to different techs before it.

You get to have quicker connection, music entertainment with better quality and faster access to the Internet. You also receive the advantages of video calling because of the quicker speed, enjoying calls to family as well as friends across the world using the video call facility. The caliber as well as clarity are heightened, with the ability usable as long as the people are employing the new 3G tech.

Utilizing the Science

Individuals may utilize their handsets and let them function as a modem in their laptops to send files. Downloading songs and games would be much quicker as compared to more basic techs. This tech also allows very fast file acquisitions, therefore you need only a few minutes to download whole albums as well as video clips.

Getting Info

Getting information is one of the best features of the 3G technology meaning you would additionally view the latest news as well as headlines, receiving data like the weather, sports and economic information. You have the ability to get the up-to-date scores for an actual Baseball match as well as other favorite sports or shows. The improved caliber of facilities as well as speed of 3G devices may permit you to see music clips as well as film clips with very clear images, when held in comparison to 2.5G technology devices.

Greater Speed

Using 3G tech, you get to appreciate data transmission speed of up to 2 megabytes per second, as long as you have your device in a fixed position. It also provides you high level of connectivity and greater networking, plus noise resistance. The technology has raised the bit rate, allowing service providers to give high speed Internet facilities, higher call volumes and host of the multimedia applications that may be given to their customers. All of the services may be given to the consumers based upon the data amount sent and not upon the time utilized for the service, therefore the services given to customers are cheaper overall.

On Cost

In spite of the brand new speeds and the capabilities of 3G tech, the prices of handsets are relatively the same, with the most current types, though, costing more than those having 2.5G, although online discounts are available.

Answer 5

The answer to this question depends on what specifically one is looking for in a phone. If one is to consider price alone, a 2g phone is definetely better since it tends to be cheaper. However, the 3g phone submits data at a higher speed, can support video-conferencing, has better audio and video streaming and even allows one to watch TV through the internet. If price is not a major factor, the 3g phone is better than the 2g phone.

Answer 6

3g has more memory than 4g