| 摘要 |
A method for fast initialization in discrete multi-tone (DMT) system for digital subscriber line and a method for point-to-multipoint transfer of multicarrier system for continuous transfer of multicarrier signal in digital subscriber line. The method for fast initialization includes performing activation and acknowledgement, transceiver training and performing selectively bit swapping algoritlun using a switch according to the system status for optimizing the channel efficiency in the discrete multi-tone (DMT) system having a transmitting part and receiving part. The method for point-to-multipoint transfer of multicarrier system for continuous transfer of multicarrier signal in digital subscriber line includes the service provider's checking bit swapping information received from a lot of set top units (STUs), calculating the difference of channel error quantity between two sub-channels (epsij,max-epsij,min) and performing bit swapping by giving the bit swap priority to the set top units (STU) that has the largest difference value of the channel error. |
