LINK ADAPTATION METHOD SUPERVISED BY THE SELECTION OF AN INTERFERENCE REGIME

摘要

The invention relates to a link adaptation method for a cellular or heterogeneous wireless telecommunications system. The communications of the system are organized in pairs of interfering communications. For a first communication between a first transmitting terminal and a first receiving terminal interfering with a second communication between a second transmitting terminal and a second receiving terminal, the first and/or second link(s) are adapted, at a constant transmission power, by selecting a weak or strong interference regime for the first and/or second link(s), the weak regime corresponding to processing of the interference as thermal noise, the strong regime corresponding to processing in which the interfering communication is decoded in order to be eliminated from the received signal.

主权项

1. A link adaptation method for a wireless telecommunications system comprising at least one first pair of terminals formed by a first transmitting terminal and a first receiving terminal and a second pair of terminals formed by a second transmitting terminal and a second receiving terminal, a first communication on a first link between the terminals of the first pair using the same transmission resources as a second communication on a second link between the terminals of the second pair, such that the two communications interfere with each other, wherein the method comprises, for the first communication:
selecting a first interference regime for the first communication from among a weak regime, in which the first receiving terminal processes the interference due to the second communication as thermal noise, and a strong regime, in which the first receiving terminal decodes the information signal of the second communication to subtract its contribution to the received signal therefrom; determining a modulation and coding scheme for the second link allowing the first communication to operate in the interference regime thus selected; determining a modulation and coding scheme for the first link maximizing the spectral efficiency without that link being in an outage situation.