LTE is one of the software standards. But not all users understand what this is, whether there are specifics of working with supported LTE in a smartphone, in contrast to 3G and 4G. Let's try to figure out what LTE support in a smartphone is, the principles of working with LTE, and identify the advantages and disadvantages of the technology. Let's compare LTE with 3G, 4G networks. We hope you find our article useful and interesting. We wish you pleasant reading!
LTE What is it in an Android Phone and What are Its Main Characteristics
Good afternoon friends. Many people have long been accustomed to the Internet in mobile gadgets, but not everyone still understands what LTE is on a phone?
LTE is an acronym written Long-Term Evolution, which literally means “Long-Term Evolution.” It is often referred to as 4G LTE. This is one of the communication standards for accelerated data transfer of any volume. This standard was specially invented for iPhones and other mobile gadgets for the purpose of high-speed Internet connection.
Frequency aggregation on a smartphone - what is it and how to increase speed?
Aggregation of carrier frequencies of smartphones from Huawei, Samsung, iPhone and other brands is a mechanism for combining frequency ranges into a single band in order to increase the capacity of the Internet channel. This uses MIMO technology and support for intermediate relays (Relay Nodes). Simply put, this is a way to speed up data transfer on 4G networks. It is actively used in the LTE-Advanced (LTE A) standard; mobile operators call this technology 4G+.
How frequency aggregation works
As of 2021, 4G in Russia operates in 6 frequency bands.
Each of them uses not one specific frequency, but a certain segment wide: 1.4, 3, 5, 10, 15, 20 MHz. This was done so that each operator in each range gets a frequency segment. Frequency aggregation combines several such segments into a single “corridor”. For example, it makes one, multi-band, 20 or 30 MHz wide, out of 2 or 3 sections of 10 MHz each. Using this technology, smartphones can transmit/receive data via two channels at once, which significantly increases the data transfer speed. Thus, the limitation on the number of connected subscribers is overcome and the channel bandwidth is increased.
The principle of aggregation of 3 frequency channels in LTE-Advanced
In Moscow, the Megafon operator has 40 MHz of continuous spectrum in the 7th band (2600 MHz band), and MTS, Tele2 and Beeline have only 10 MHz each. Thus, Megafon has a significant advantage in network capacity and speed. In turn, it is important for MTS subscribers to check whether their phone supports band 38 (2600 TDD), because this operator has wide coverage in Moscow - 20 MHz. Beeline and Tele2 are lagging behind in the capital.
Not only subnets of different gangs are available for aggregation, but also subnets of different separation standards are available. That is, you can simultaneously connect to the FDD subnetwork (frequency division of channels), and to the TDD subnetwork Band 38, where time division of channels is used for receiving and transmitting signals (unlike
