TRAI asks DoT to introduce spectrum in 95 GHz to 3 THz

New Delhi, Aug 21 (FN Bureau) Telecom regulator TRAI on Wednesday widened the scope of making more spectrum available and gave its recommendation on allocation of airwaves in the 95 GHz to 3THz range, termed as “Tera Hertz Experimental Authorization (THEA)”. Releasing its recommendations, Telecom Regulatory Authority of India (TRAI) said that the Government should introduce a new experimental authorisation for the spectrum in the 95 GHz to 3 THz range.

The purpose of THEA should be to promote Research & Development (R&D), indoor and outdoor testing, technology trial, experimentation, and demonstration in the 95 GHz to 3 THz range, TRAI said adding the scope of THEA should be and to market experimental devices designed to operate in the 95 GHz to 3 THz range via direct sale. As far as eligibility is concerned, the regulator said any Indian Entity (Academic institute, R&D Laboratory, Central/ State Government, public sector unit, Union Territory, Technology Park, telecommunication service provider, incubator, original equipment manufacturer etc.) should be eligible to obtain THEA. Marketing of experimental devices designed to operate in the 95 GHz to 3 THz range should be permitted under THEA via direct sale and the authorisation period of THEA should be up to five years. The authorisation should be further extendable for periods of up to five years at a time, TRAI recommended.

“The authorisation fee for THEA should be Rs. 1,000 for a period up to five years,” it said. TRAI further recommended that authorisation and assignment-exempt operations should be permitted in the 116-123 GHz, 174.8-182 GHz, 185-190 GHz, and 244-246 GHz frequency bands in India. The 77-81 GHz frequency range should be opened for authorisation and assignment-exempt operations of automotive radar systems in India. THEA, recommended by the Authority, would encourage entrepreneurs and academia to develop innovative new technologies and services in the Tera Hertz band. THEA would help experimenters to evaluate the performance of products in the Tera Hertz band in the conception, development and design stages which would, in turn, pave a path to ascertain the technical viability of technologies and services built on the Tera Hertz spectrum. Upon implementation, the new experimental authorisation regime recommended by the Authority will provide a boost to the ‘Make in India’ initiatives of the Government, TRAI said. The Authority is of the view that permitting the authorisation and assignment-exempt use of the 116-123 GHz, 174.8-182 GHz, 185-190 GHz, and 244-246 GHz bands would support the introduction of next-generation wireless technologies that could be deployed both indoor and outdoor, operating over distances ranging from less than a meter to several hundred meters, and deliver increased capacity and reliability for existing use cases as well as new and emerging use cases. Releasing these bands would also support a variety of innovative use cases that will significantly enhance operations and growth in vertical industries.

Vehicular radars can determine the distance and relative speed of objects in front of, besides, or behind a vehicle to improve the driver’s ability to perceive objects under poor visibility conditions or in blind spots. Long-range vehicular radars (LRRs) use up to 1 GHz of bandwidth and typically provide a spatial resolution of the order of 0.5 meters. The vehicular radar industry has also developed short-range vehicular radar (SRR) applications that use up to 4 GHz of bandwidth, and typically provide a higher spatial resolution than LRRs, of the order of 0.1 meters. Internationally, SRR units operating in the 77 GHz to 81 GHz band are used for several applications to enhance the active and passive safety of road users. Applications which enhance passive safety include obstacle detection, collision warning, lane departure warning, lane change aid, blind spot detection, parking aid and airbag arming. The combination of these functions is referred to in the literature as a “safety belt” for cars. Keeping in view that the short-range vehicular radar (SRR) applications can significantly enhance the safety of drivers and other road users, the Authority has recommended to permit authorisation and assignment-exempt operations of the 77-81 GHz band for automotive radars in India, TRAI added.