Â鶹ԼÅÄ

In 2015, The World Radiocommunications Conference (WRC-15) is expected to allow us of the band 694 – 790 MHz for LTE-700 4G services in some countries. This will require existing DTT services in these countries to be re-planned to occupy the reduced band 470-694 MHz. Coexistence between the mobile and broadcast services has been a concern and recommendations for permitted out of band levels from LTE-700 terminal user equipment (UE) have been made following studies in ECC CPG-PTD. In recognition of the absence of harmonised standards for TV receivers under the existing Radio and Telecommunications Terminal Equipment (R&TTE) directive, the European Commission has included broadcast receivers under the new Radio Equipment Directive (RED). This has resulted in requests for a programme of work in ETSI to define appropriate broadcast receiver requirement specifications. This paper describes the work carried out by ETSI TG17 WG1 and supporting studies to define the new harmonised standard for DTT receivers. A measurement programme has established the performance achieved by existing receivers and statistical methods have been used to guide the selection of new performance targets. The intention is to set achievable targets that will improve coexistence between LTE ad DTT services. Finally this paper gives the results of a simulation illustrating the reduced risk of interference to standard DTT installations assuming the specification is applied. This document was originally published in 2015 at the IBC Conference.