Method and arrangement for the power management of a digital communication line
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsJohan Kölhi, Per-Erik Eriksson, Miguel Berg
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Abstract
The present invention relates to a method and an arrangement for the power management of a digital communication line such as a digital subscriber line DSL (2201). A problem addressed by the invention is that the transitioning of the digital subscriber line (2201) from a low transmission power state to a high transmission power state can cause disturbance to adjacent lines. This problem is solved by the current invention by an access node AN (2100) that is arranged to step-wise increase the power state until the high transmission power state has been reached. The invention also comprises embodiments of monitoring and detecting traffic events that serve as triggers of the transitioning.
Claims14
A first communication node configured to communicate with at least one second communication node over at least one operational digital communication line, wherein the first communication node comprises:
- a traffic event monitor comprising a call control message intercept unit that monitors received call control messages, wherein the traffic event monitor is configured to:
- monitor traffic events, and
- detect a selected traffic event, and
- a power mode control unit configured to send to the second communication node, in response to detection of the selected traffic event, a plurality of requests to increase the transmission power of the at least one operational digital communication line in the first communication node in a series of steps from a low transmission power state to a high transmission power state in the digital communication line.
A method in a first communication node, comprising:
- monitoring traffic events;
- detecting a selected traffic event, wherein the selected traffic event is receipt of a selected call control message;
- in response to detection of the selected traffic event, sending from the first communication node to a second communication node, a request to increase the transmission power level of at least one operational digital communication line operating at a low power state in the first communication node to a higher intermediate power state;
- receiving a grant from the second communication node;
- increasing the transmission power level of the at least one operational digital communication line in the first communication node to the higher intermediate power state;
- and
- repeating at least once, the steps of sending the request, receiving the grant, and increasing the transmission power level until a high transmission power state has been reached for the at least one operational digital communication line.
A non-transitory computer-readable medium having a computer-readable program stored thereon for operating on a processor of a first communication node, wherein the program comprises instructions that cause the first communication node to perform the following steps when the processor executes the program:
- monitoring traffic events;
- detecting a selected traffic event, wherein the selected traffic event is receipt of a selected call control message;
- in response to detection of the selected traffic event, sending from the first communication node to a second communication node, a request to increase the transmission power level of at least one operational digital communication line operating at a low power state in the first communication node to a higher intermediate power state;
- receiving a grant from the second communication node;
- increasing the transmission power level of the at least one operational digital communication line in the first communication node to the higher intermediate power state;
- and
- repeating at least once, the steps of sending the request, receiving the grant, and increasing the transmission power level until a high transmission power state has been reached for the at least one operational digital communication line.
Dependencies are inferred from the claim text.