US 2002/0054577 A1 · Method to reduce interference and increase effective capacity of power line networking systems

Abstract

A method of power control for use in a communications network having plural transceiver communications nodes therein, including, in an initiator node, transmitting a first signal at a first power level to a responder node; in the responder node, measuring and storing, a first signal level for the first signal and a first signal responder noise level; determining responder reception characteristic information; and sending a second signal to the initiator node; in the initiator node, measuring and storing, the second signal signal level and second signal initiator noise level; and sending a third signal to the responder node; in both the initiator node and the responder node, determining a subsequent data transmit signal power and data rate; and transmitting data at the subsequent data transmit signal power and data rate.

Claims27

Dependent claims

A method of power control for use in a communications network having plural transceiver communications nodes therein, comprising:

in an initiator node, transmitting a first signal at a first power level to a responder node;
in the responder node, measuring and storing, a first signal level for the first signal and a first signal responder noise level;
determining responder reception characteristic information;
and sending a second signal to the initiator node;
in the initiator node, measuring and storing, the second signal signal level and second signal initiator noise level;
and sending a third signal to the responder node;
in both the initiator node and the responder node, determining a subsequent data transmit signal power and data rate;
and
transmitting data at the subsequent data transmit signal power and data rate.

6 more elements

A method of power control for use in a communications network having plural transceiver communications nodes therein, comprising:

storing, in each node, network information;
in an initiator node, transmitting a training request command in a HIPAR mode to a responder node;
in the responder node, measuring and storing, as network information, the HIPAR signal level and responder noise level of the training request command;
determining responder reception characteristic information;
and acknowledging the initiator's reception characteristic information;
in the initiator node, measuring and storing, as network information, the HIPAR signal level and initiator noise level of the responder reception characteristic information;
determining initiator reception characteristic information;
and sending a training request response having initiator Reception characteristic information therein to the responder node;
in both the initiator node and the responder node, determining a subsequent data transmit signal power from the network information stored in the respective node;
and
transmitting data at the subsequent data transmit signal power.

8 more elements

A method of power control for use in a non-dedicated, wired communications network having plural transceiver communications nodes therein, comprising:

storing, in each node, network information;
in an initiator node, transmitting a training request command in a HIPAR mode to a responder node;
in the responder node, measuring and storing, as network information, the HIPAR signal level and responder noise level of the training request command;
determining responder reception characteristic information;
and acknowledging the initiator's reception characteristic information;
in the initiator node, measuring and storing, as network information, the HIPAR signal level and initiator noise level of the responder reception characteristic information;
determining initiator reception characteristic information;
and sending a training request response having initiator reception characteristic information therein to the responder node;
in both the initiator node and the responder node, determining a subsequent data transmit signal power and data rate from the network information stored in the respective node;
initiating power control upon occurrence of an event taken from the group of events consisting of automatic power control, collision sense power control and requested power control;
and
transmitting data at the subsequent data transmit signal power and data rate.

9 more elements

Dependencies are inferred from the claim text.

Method to reduce interference and increase effective capacity of power line networking systems

Life of this patent

Method to reduce interference and increase effective capacity of power line networking systems

Life of this patent

Abstract

Claims27