Method and system for DSL power saving
AssigneeCatena Networks, Inc.
InventorAndrew Deczky
Life of this patent
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Abstract
Method and system for reducing power dissipation for data transmission from a transmitter to a receiver in a digital subscriber line (DSL) system when a rate of available data is below a first predetermined data rate for a predetermined length of time. The method includes the following steps. Normal parameters for a normal rate of said data transmission are stored. New parameters for a reduced rate of the data transmission are calculated. Data is transmitted at the reduced rate of the data transmission, wherein the reduced rate requires less power for data transmission. The normal rate of the data transmission is resumed using the normal parameters when the rate of available data rises above a second predetermined data rate.
Claims22
A method for reducing power dissipation for data transmission from a transmitter to a receiver in a digital subscriber line (DSL) system when a rate of available data is below a first predetermined data rate for a predetermined length of time, said method including the steps of:
- storing normal parameters for a normal rate of said data transmission;
- calculating new parameters for a reduced rate of said data transmission;
- transmitting data at said reduced rate of said data transmission, wherein said reduced rate requires less power for data transmission;
- and
- resuming said normal rate of said data transmission using said normal parameters when said rate of available data is above a second predetermined data rate.
A system for reducing power dissipation for data transmission in a digital subscriber line (DSL) system when a rate of available data is below a first predetermined data rate for a predetermined length of time, comprising:
- a central office asymmetric DSL termination unit (ATU-C);
- and
- a remote asymmetric DSL termination unit (ATU-R),
- wherein said ATU-C includes a first processor, said ATU-R includes a second processor, and at least one of said first and second processors is configured to execute processing comprising the steps of:
- storing normal parameters for a normal rate of said data transmission;
- calculating new parameters for a reduced rate of said data transmission;
- transmitting data at said reduced rate of said data transmission, wherein said reduced rate requires less power for data transmission;
- and
- resuming said normal rate of said data transmission using said normal parameters when said rate of available data is above a second predetermined data rate.
Dependencies are inferred from the claim text.