System and method for excluding narrow band noise from a communication channel
First Claim
1. A signal filtering system comprising:
- an analog to digital converter adapted to sample a received signal and to produce a data stream corresponding to the received signal in the time domain;
a digital signal processing unit to implement spectral analysis of said received signal;
a filtering sub-system to filter said data stream based on results of said spectral analysis, the filtering sub-system having one or more digital filter elements, each filtering element adapted to filter one or more sets of frequency bands associated with one or more, respective, communication channels; and
a controller to configure said one or more digital filter elements based on one or more selected parameters.
2 Assignments
0 Petitions
Accused Products
Abstract
A signal filtering system and method that may be used in conjunction with a repeater or an input stage of a base-station. The system may include an analog to digital converter adapted to sample a received signal and to produce a data stream corresponding to the received signal in the time domain, a filtering block having one or more digital filter elements, wherein each of said one or more filter elements is adapted to filter one or more sets of frequency bands associated with one or more communication channel, and a controller adapted to configure said one or more digital filter elements based on parameters stored on a database and/or based on parameters received via a modem.
91 Citations
35 Claims
-
1. A signal filtering system comprising:
-
an analog to digital converter adapted to sample a received signal and to produce a data stream corresponding to the received signal in the time domain;
a digital signal processing unit to implement spectral analysis of said received signal;
a filtering sub-system to filter said data stream based on results of said spectral analysis, the filtering sub-system having one or more digital filter elements, each filtering element adapted to filter one or more sets of frequency bands associated with one or more, respective, communication channels; and
a controller to configure said one or more digital filter elements based on one or more selected parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method of signal filtering comprising:
-
sampling a received signal and producing a data stream corresponding to the received signal in the time domain;
filtering said stream in accordance with one or more sets of frequency bands associated with one or more, respective, communication channels; and
configuring said one or more communication channels based on one or more selected parameters. - View Dependent Claims (23, 24, 25, 26, 27, 30, 31, 32, 33)
-
-
34. A base station of a cellular communications system, said base station comprising:
-
an analog to digital converter adapted to sample a received signal and to produce a data stream corresponding to the received signal in the time domain;
a digital signal processing unit to implement spectral analysis of said received signal;
a filtering sub-system to filter said data stream, the filtering sub-system having one or more digital filter elements, each filtering element adapted to filter one or more sets of frequency bands associated with one or more, respective, communication channels; and
a controller to configure said one or more digital filter elements based on one or more selected parameters.
-
-
35. A repeater for a cellular communications system, said repeater comprising:
-
an analog to digital converter adapted to sample a received signal and to produce a data stream corresponding to the received signal in the time domain;
a digital signal processing unit to implement spectral analysis of said received signal;
a filtering sub-system to filter said data stream, the filtering sub-system having one or more digital filter elements, each filtering element adapted to filter one or more sets of frequency bands associated with one or more, respective, communication channels; and
a controller to configure said one or more digital filter elements based on one or more selected parameters. - View Dependent Claims (28, 29)
-
Specification