Unlicensed Spectrum

Unlicensed spectrum is a set of radio-frequency bands that people and organisations may use without obtaining an individual spectrum licence, provided they follow prescribed conditions. In India, licence-exempt spectrum is governed by government notifications specifying permitted frequencies and technical limits; it is not unregulated spectrum or spectrum owned by its users.

How licence exemption works in India

The Department of Telecommunications (DoT), through its Wireless Planning and Coordination (WPC) Wing, administers spectrum regulation. Licence-exemption notifications allow specified wireless equipment to operate within defined bands without individual frequency assignment, subject to the notification's conditions.

• Exemption applies to the specified frequency band and equipment conditions, not automatically to every wireless device or communication service.
• Users must comply with prescribed limits, including transmit power and any applicable restrictions on indoor or outdoor operation.
• Spectrum exemption does not remove separate requirements concerning equipment conformity or authorisation to provide telecommunications services, where applicable.

Shared use and interference

Unlike spectrum assigned for exclusive use, unlicensed spectrum is shared by multiple users. Access does not require purchasing an individual spectrum assignment, but users do not acquire an exclusive right to a channel.

• Operation is generally permitted on a non-interference, non-protection basis: compliant equipment must not cause harmful interference to authorised radio services and cannot claim protection from interference.
• The 2.4 GHz band, subject to India's exemption conditions, is a familiar example used by technologies such as Wi-Fi and Bluetooth.
• Shared access can cause congestion and interference when many devices operate nearby, reducing connection quality.
• Permission to use a band does not imply permission to transmit at any power level; compliance with technical limits remains essential.

Role in affordable digital access

Licence-exempt bands support Wi-Fi access networks, allowing a wired or wireless internet connection to be shared locally among several users. Avoiding individual spectrum-assignment costs can lower barriers to deploying hotspots in homes, businesses and public spaces.

• Public Wi-Fi can complement mobile networks and help users access digital payments, banking and government services.
• Internet backhaul is still necessary: permission to use spectrum does not itself supply internet connectivity.
• Inclusive access also depends on affordable devices, reliable electricity, sufficient network capacity and digital literacy; licence exemption alone cannot close the digital divide.