Why is spectrum and how it is allocated?

Why is spectrum and how it is allocated?

Spectrum allocation came to be because of the emerging and convergence of wireless telecommunications technology which created huge demands on the radio frequency spectrum for various services such as high-speed data transfer and communication.

Why the frequency is allocated in bands?

The International Telecommunication Union defines frequency allocation as being of “a given frequency band for the purpose of its use by one or more terrestrial or space radiocommunication services or the radio astronomy service under specified conditions”.

Why is there a need to allocate different bands for different purposes?

Different bands of spectrum are able to transmit more data than others, and some bands of the spectrum transmit a clearer signal than others. Bands that are particularly fast or that have long range are of critical importance for companies that intend to operate a business involving wireless communications.

How is spectrum divided?

The spectrum is divided into different frequency bands, each having a specific application. For instance, the frequency band that covers 300 kHz to 535 kHz is reserved for aeronautical and maritime communications and the spectrum from 535 kHz and 1705 kHz for AM radio. This process is called “allocation”.

Why is spectrum important in telecom?

Spectrum is a range of electromagnetic radio frequencies used for transmission of voice, data and images. Mobile telecom operators send and receive frequencies to enable communication between two phones. The defence services and railways also use the spectrum .

How is spectrum allocation done in India?

Under this model, the government would select companies that it deemed were best equipped to develop India’s telecom infrastructure. The final allocation of 900 MHz took place in 2004, through the new model. This policy resulted in spectrum being allocated at far lower prices than had been done through auctions.

Why are some radio frequencies banned?

It’s now illegal to operate wireless audio in the majority of the 600 MHz band. The sale of the 600 MHz frequency band further limits the available frequency channels wireless audio can use to transmit sound. Both the 700 MHz and 600 MHz are sought after because wireless can propagate through walls more efficiently.

What is spectrum and why is it important?

How is spectrum allocation done?

The allotment of spectrum is either paired or unpaired. In case of paired spectrum, different sets of frequencies are allocated for uplink and downlink. For example in case of 900MHz spectrum, the DoT allocated frequencies between 890MHz – 915Mhz for uplink, and between 935MHz – 960Mhz for downlink in each circle.

What is frequency spectrum network?

1.3 Frequency Spectrum. Frequency spectrum of a signal is the range of frequencies contained by a signal. For example, a square wave is shown in Fig. The frequency spectrum of this signal can be an approximation comprising only the first and third harmonics, as shown in Fig. 3.5B.

How is frequency allocation done in a country?

Frequency allocation. Frequency allocation (or spectrum allocation or spectrum management) is the allocation and regulation of the electromagnetic spectrum into radio frequency bands, which is normally done by governments in most countries. Because radio propagation does not stop at national boundaries,…

How are radio bands allocated in the radio spectrum?

Radio bands by frequency. A radio band is a small contiguous section of the radio spectrum frequencies, in which channels are usually used or set aside for the same purpose. To prevent interference and allow for efficient use of the radio spectrum, similar services are allocated in bands.

How are frequency allocations used to improve harmonisation?

To improve harmonisation in spectrum utilisation, most service allocations are incorporated in national Tables of Frequency Allocations and Utilisations within the responsibility of the appropriate national administration. Allocations are: exclusive or shared utilization, within the responsibility of national administrations.

What does the International Telecommunication Union mean by frequency allocation?

The International Telecommunication Union defines frequency allocation as being of “a given frequency band for the purpose of its use by one or more terrestrial or space radiocommunication services or the radio astronomy service under specified conditions”.