Ericsson signed 4G network deal with Bharti Airtel

Oct 10, 2014 15:20 IST

Swedish telecom gear firm Ericsson on 9 October 2014 signed a Long-Term Evolution (LTE) or 4G network deal with Bharti Airtel. Airtel signed the deal with Ericsson for FDD-LTE network.

The signing of the deal will add to the existing 4G services offered by Bharti Airtel.  The company is offering 4G services using TDD-LTE technology on 2300 Mhz band in Ludhiana, Mohali, Bangalore, Kolkata, Pune, Chandigarh and Panchkula.

Bharti Airtel and 4G network

The Sunil Bharti Mittal-promoted firm plans to launch pan-India 4G network using 1800 MHz spectrum which it had won in the Spectrum allocation. It had won the 1800 MHz spectrum in 15 circles, including metros — Delhi, Mumbai and Kolkata.

In 2010, Airtel won broadband wireless access (BWA) or 4G spectrum in 2300 MHz frequency band in four telecom services areas of Kolkata, Maharashtra, Punjab and Karnataka in 2010. It later acquired Qualcomm, which had 4G spectrum in New Delhi, Mumbai, Haryana and Kerala.

It acquired Qualcomm, which had 4G spectrum in New Delhi, Mumbai, Haryana and Kerala.

Earlier in June 2014, Reliance Jio Infocomm had announced that it will commercially launch 4G services by 2015 in India.

About LTE network

Long-Term Evolution (LTE) is commonly marketed as 4G LTE. It is a standard for wireless communication of high-speed data for mobile phones and data terminals.

It is based on the GSM/EDGE and UMTS/HSPA network technologies, increasing the capacity and speed using a different radio interface together with core network improvements. The standard is developed by the 3GPP (3rd Generation Partnership Project).

Difference between FDD-LTE and TDD-LTE

LTE has been defined to accommodate both paired spectrum for Frequency Division Duplex, FDD and unpaired spectrum for Time Division Duplex, TDD operation. It is anticipated that both LTE TDD and LTE FDD will be widely deployed as each form of the LTE standard has its own advantages and disadvantages

Frequency division duplex (FDD): It is a type of full duplex that require two symmetrical segments of spectrum for the uplink and downlink channels wherein there are two cables in the networking. Full-duplex Ethernet uses two twisted pairs inside the CAT5 cable for simultaneous send and receive operations.

Time division duplex (TDD): It is also a type of full duplex that uses a single frequency band for both transmit and receive. Then it shares that band by assigning alternating time slots to transmit and receive operations. The information to be transmitted—whether it’s voice, video, or computer data—is in serial binary format. Each time slot may be 1 byte long or could be a frame of multiple bytes.

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