Patent ID: 8626140
Filing Date: 2014-01-07
Classification: H04Q,H04W

Abstract:
1. A method for adapting radiofrequency signal spectrum of a communications system based on a Terrestrial Trunked Radio (TETRA) standard, characterized in that it comprises the following steps: a) determining a required radio profile for the radiofrequency signal used in the communications system, according to a specific radioelectric spectrum use requirements of a country in which the communication system operates; b) modifying a configurable transmission and reception parameters of a base station in Voice plus Data mode, V+D, or of a master terminal in Direct Mode Operation mode, DMO, according to the required radio profile; c) encoding and sending by radio said required radio profile information to terminals of the TETRA communications system using the TETRA standard signaling, using data fields reserved for generic use; d) decoding said radio profile information and modifying the configurable transmission and reception parameters of the terminals of the TETRA communications system according to information received about the required radio profile.