1. Global System for Mobile Communications (GSM):
This is a mobile network widely used by mobile phone users worldwide. In this case, the customer’s information is placed on a SIM card that can be carried in the new phone. It operates on the 900 MHz or 1,800 MHz frequency band. In GSM, two technologies are used: FDMA and TDMA.
2. Long Term Evolution (LTE):
This is the standard for high-speed data communications. It offers download speeds of around 100 Mbps and upload speeds of around 50 Mbps. It does not provide good voice call quality when using data services. It requires a SIM card to authenticate the phone.
| serial number | GSM | LTE |
|---|---|---|
| 1 | GSM supports voice calls and data. | And it is only used for high-speed data communication. |
| 2 | GSM uses frequency division multiple access (FDMA) and time division multiple access (TDMA). | And it uses Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (SC-FDMA) |
| 3 | In CSM, information is transmitted through channels separated into physical and logical channels. | While in LTE, physical, logical and transport channels are used to carry information. |
| 4 | In GSM, two frequency bands are used, 900MHz and 1800MHz. | In LTE, frequency bands from 1 to 25 and from 33 to 41 are reserved for FDD (frequency division duplex) and TDD (time division duplex) respectively. |
| 5 | Here, the customer’s information is stored in the SIM card. | For this reason, a SIM card is required to authenticate the phone. |
| 6 | This is a slower network. | And it is the fastest network. |
Differences between 3G and 4G Technology
There are often differences between 3G and 4G in terms of technical compliance, information transmission rate, capacity, information processing design and diversity of connections. 3G represents the third generation in which optimized mobile square measures were developed to sanction information and broadband services with higher performance . 4G LTE stands for the fourth generation and it offers many features that provide a faster and more reliable mobile broadband experience and allow for a large number of connections.
| serial number | 3G technology | 4G technology |
|---|---|---|
| 1 | It represents third generation technology. | It represents fourth generation technology. |
| 2 | The maximum upload rate of 3G technology is 5 Mbps. | The maximum upload rate of 4G technology is 500 Mbps. |
| 3 | The maximum download rate of 3G technology is 21 Mbps. | The maximum download rate of 4G technology is 1 Gbps. |
| 4 | It uses packet switching technology. | Although it uses packet switching technology as well as message switching technology. |
| 5 | The frequency range of 3G technology is 1.8 GHz to 2.5 GHz. | Its frequency range is 2 GHz to 8 GHz. |
| 6 | Horizontal width. | Although it is wide both horizontally and vertically. |
| 7 | It is a WAN-based network architecture. | It is the integration of wireless LAN and WAN-based network architecture. |
| 8 | In 3G technology, there are Turbo codes for error correction. | 4G technology uses concatenated codes for error correction. |
Differences between 2G and 3G Cellular Networks
Second generation (2G network):
2G mobile networks are based on GSM (Global System for Mobile Communications). The technology was developed in Finland in 1991. Use this technology to encrypt messages. The digital signals used in this technology consume less battery and therefore result in less power consumption. Cell phone data service is also provided. The advanced versions are 2.5G and 2.75G.
Third generation (3G network):
Japan developed its 3G mobile network in 2001 to achieve the highest speeds that 2G technology lacked. The standards for this technology are set by the International Telecommunications Union (ITU). This technology provides users with services such as GPS (Global Positioning System), video conferencing and mobile TV.
| 2G | 3G |
|---|---|
| Networks are cheaper to build and maintain. | Network construction and maintenance costs are higher. The license fee to be paid for 3G is also higher compared to 2G. |
| It offers slower download speeds and slower access to apps. | Apps are accessed and downloaded faster. |
| 2G is not very compatible with smartphone functionality. Data transfer rates can be 50,000 bits per second. | 3G is widely used in smartphones. Data transfer rates can exceed 4 million bits per second. |
| It’s not as secure as 3G. | Since 3G networks allow authentication measures, they are highly secure. |
| Unable to make video call. | Video calls are available. |
| Upload speeds up to 236 kbps. | Download speeds are up to 21 Mbps and upload speeds are up to 5 Mbps. |
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