Patent ID: 7209516

Claim:
An ADSL system comprising: an ADSL transceiver operable to transmit and receive over a frequency spectrum, the frequency spectrum having a data transmission band from frequency F U0 to frequency F DE , the data transmission band including a first section from frequency F U0 to frequency F UE for transmitting upstream data and a second section from frequency F D0 frequency F DE for transmitting downstream data, the first section having a first subsection from frequency F U0 to frequency F U1 and comprising a channels and a second subsection from frequency F U1 to frequency F UE , wherein F U0 <F U1 <F UE ≦F D0 <F DE ; wherein the data transmission band has improved data transmission rates for both upstream data transmission and downstream data transmission, the data transmission in the first subsection has a first power, the data transmission in the second subsection has a second power lower than the first power, and the data transmission in the second section has a third power lower than the second power.