Compatibility of 2.3 GHz 4G mobile with assistive listening devices
This document sets out a detailed technical study into the coexistence of 4G mobile phones and hearing aids and associated accessories.
This work has been carried out ahead of the award of new airwaves for mobile broadband in the 2.3 GHz band (2350-2390 MHz). This band sits near the licence exempt 2.4 GHz band, which is used by some hearing aids, radio aids, and sound processors used for cochlear implants - together referred to as assistive listening devices (ALDs).
We also ran tests using a 4G signal in the 10 MHz ‘guard band’ between the 2.3 GHz frequencies we will be auctioning and the spectrum band used by ALDs. Even though this block will not be part of our upcoming award in the UK it may be used in other countries.