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METHOD FOR DETERMINING FREQUENCY SUB-BAND DIVISION IN MODEMS BASED ON MULTICARRIER MODULATION TECHNIQUE AND SYSTEM UTILIZING THE METHOD

机译:基于多载波调制技术的系统频率子带划分确定方法及系统

摘要

The present invention concerns a method and system for dividing the transmission bandwidth into data-transferring subchannels of desired bandwidths and carrier locations in modems based on multicarrier modulation technique, in which method the transmission bandwidth is divided into at least three subchannels (2) when both transmission directions are taken into account. According to the invention, the bandwidth of said subchannels (2) at frequency ranges (5) affected at the highest probability by RF interference emissions at frequencies (4) not known a priori is set narrower than the bandwidth of other subchannels (2) and the number of said narrower-bandwidth subchannels is not set smaller than two when both transmission directions are taken into account.
机译:本发明涉及一种用于基于多载波调制技术在调制解调器中将传输带宽划分为具有期望带宽和载波位置的数据传输子信道的方法和系统,其中,当两个信道均被传输时,传输带宽被划分为至少三个子信道(2)。考虑了传输方向。根据本发明,所述子信道(2)在频率范围(5)上的带宽被设置为比其他子信道(2)的带宽窄,所述子信道(2)的带宽在先验未知的频率(4)受RF干扰发射的可能性最大。当考虑到两个传输方向时,所述窄带宽子信道的数目不被设置为小于两个。

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