Patent ID: 9301303
Filing Date: 2016-03-29
CPC Classification: H04W

Claim Text:
1. A method for scheduling carrier frequencies for a narrowband radiocommunication system sharing with a broadband radiocommunication system, in one and the same geographical zone, radioelectric transmission cells each comprising a narrowband base station and a broadband base station, and one and the same frequency band, the frequency band being in part divided into a given number of frequency blocks, each comprising a given number of carrier frequencies to optionally be allocated to each narrowband base station, the method comprising: a step of distributing the carrier frequencies to be allocated to the narrowband base stations over the frequency band such that each frequency block comprises at least two distinct groups of carrier frequencies, each associated with a different narrowband base station, the at least two distinct groups of carrier frequencies being selected according to a distribution rule such that interference relating to the emission of the narrowband base stations associated with groups of carrier frequencies distributed in one and the same frequency block has a minimum interfered surface area, such distributing including bijectively mapping each carrier frequency of one of the groups of the first set with a carrier frequency of a frequency block while complying, on the one hand, with the distribution rule and, on the other hand, with a minimum frequency gap between the carrier frequencies of one and the same group of carrier frequencies bijectively mapped with carrier frequencies of one and the same frequency block; and an association step determining a first set of first groups of carrier frequencies, each first group of carrier frequencies of which is associated with one or more narrowband base stations according to reuse rules.