Method and apparatus for detection and classification of impairments on an RF modulated network
First Claim
1. A method for maintaining the integrity of a communication system, comprising:
- detecting an impairment on a communication channel of the communication system;
characterizing said impairment; and
adapting operating parameters of the communication system in accordance with said characterization of said impairment.
6 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for detecting and classifying RF impairments on the upstream path of a communication system is provided. The detection system detects frequencies with common path distortion impairments, and a system manager avoids transmission over those frequencies or adapts transmissions accordingly. Subsequently, periodic impairments on the upstream path are detected. Detection of periodic impairments triggers the system manager to schedule no traffic during impairment periods, schedule low priority traffic during impairment periods, and/or adjust the physical layer parameters of traffic transmitted during an impairment period in order to increase robustness only when necessary. Finally, non-periodic or random impairments are detected on the upstream path and global parameter changes are made to adapt to non-predictable impairments. Each of the impairment types is then further classified to assist an operator of the system in determining the physical source of the impairment.
-
Citations
24 Claims
-
1. A method for maintaining the integrity of a communication system, comprising:
-
detecting an impairment on a communication channel of the communication system;
characterizing said impairment; and
adapting operating parameters of the communication system in accordance with said characterization of said impairment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A system for maintaining the integrity a communication system comprising:
-
an analog receiver that receives analog data from the communication system;
an analog-to-digital converter coupled to said analog receiver that converts said analog data into digitized data;
an FFT processor coupled to said analog-to-digital converter that receives said digitized data and performs a time domain to frequency domain conversion of said digitized data; and
a processor coupled to said FFT processor that examines said converted digitized data to detect and classify an impairment on a communication channel of the communication system. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24)
-
-
18. An apparatus for maintaining the integrity of a communication system comprising:
-
receiving means for receiving analog data from the communication system;
converting means for converting said analog data into digitized data;
transforming means for transforming said digitized data from a time domain to a frequency domain; and
processing means for examining said transformed digitized data to detect and classify an impairment on a communication channel of the communication system.
-
Specification