DYNAMIC DIGITAL COMMUNICATION SYSTEM CONTROL
First Claim
1. A method of controlling a digital communication system having a plurality of communication lines on which signals are transmitted and received, the signals being affected by interference during transmission, each of the communication lines being used by a user and having at least one transmitter and at least one receiver, the method comprising the steps of:
- collecting information about line, signal and interference characteristics of the communication lines;
creating a model of the line, signal and interference characteristics of the communication lines;
synchronizing transmissions of signals between transmitters and receivers; and
processing signals using the model to remove interference from signals.
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Accused Products
Abstract
Control of a digital communication system having a plurality of communication lines on which signals are transmitted and received is implemented using a variety of methods and systems. According to one embodiment of the present invention, a method is implemented where the signals are affected by interference during transmission and each of the communication lines has at least one transmitter and at least one receiver. A model is created of the interference characteristics due to the signals carried on the communication lines. Interference characteristics for a line are determined based on the model and actual signals carried on other communication lines different from the line for which the characteristics are being determined. Actual interference is compensated for on the communication line using the determined interference characteristics.
19 Citations
20 Claims
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1. A method of controlling a digital communication system having a plurality of communication lines on which signals are transmitted and received, the signals being affected by interference during transmission, each of the communication lines being used by a user and having at least one transmitter and at least one receiver, the method comprising the steps of:
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collecting information about line, signal and interference characteristics of the communication lines; creating a model of the line, signal and interference characteristics of the communication lines; synchronizing transmissions of signals between transmitters and receivers; and processing signals using the model to remove interference from signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of controlling a digital communication system having a plurality of communication lines, each of the communication lines being used by a user, wherein the total power a user can use in the system is limited by a power constraint, the method comprising the steps of:
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assigning the total power constraint for each user an initial value; and determining a competitively optimal data rate for each user, comprising the steps of; determining a power allocation within the total power constraint of each user by iteratively allowing each user to optimize its power allocation; and determining the competitively optimal data rate for each user based on the determined power allocation for the user; evaluating the competitively optimal data rate for each user, comprising the steps of; comparing the competitively optimal data rate of a user with a target rate for the user; increasing the power constraint for a user if the competitively optimal data rate of the user is less than the target rate for the user; decreasing the power constraint for the user if the competitively optimal data rate of the user exceeds the target rate for the user by at least a prescribed variance; maintaining the power constraint for the user if the competitively optimal data rate of the user is equal to the target rate for the user; and maintaining the power constraint for the user if the competitively optimal data rate of the user exceeds the target rate for the user by less than the prescribed variance. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification