Interference control in a broadband powerline communication system
First Claim
1. A method comprising:
- determining, over a first time period during which a broadband powerline communication system is not transmitting data over a range of carrier frequencies, first characteristics of usage of a radio environment over the range of carrier frequencies in a vicinity of the broadband powerline communication system;
compiling a database of the first characteristics of usage; and
generating a schedule of use of the range of carrier frequencies by a conflicting user based on the first characteristics of usage.
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Accused Products
Abstract
A broadband powerline communication system makes use of knowledge of the spectrum characteristics of a local radio environment in order to improve system performance. A determination is made of the spectrum characteristics of a radio environment in the vicinity of the broadband powerline communication system that is transmitting data on modulated carrier frequencies. In order to avoid interference, certain ones of the carrier frequencies otherwise used by the broadband powerline communication system may be selectively masked based on the determination. The spectrum characteristics may be determined 1) in advance and used to compile a configuration database comprising frequency masking parameters; 2) by monitoring the local radio environment using the transmitter/receiver nodes of the system; or 3) based upon receipt of an indication from a conflicting user that the user is experiencing interference. Various combinations of these spectrum characteristic determination techniques may also be used.
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Citations
20 Claims
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1. A method comprising:
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determining, over a first time period during which a broadband powerline communication system is not transmitting data over a range of carrier frequencies, first characteristics of usage of a radio environment over the range of carrier frequencies in a vicinity of the broadband powerline communication system; compiling a database of the first characteristics of usage; and generating a schedule of use of the range of carrier frequencies by a conflicting user based on the first characteristics of usage. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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a processor; and a memory to store computer program instructions, the computer program instructions when executed on the processor cause the processor to perform operations comprising; determining, over a first time period during which a broadband powerline communication system is not transmitting data over a range of carrier frequencies, first characteristics of usage of a radio environment over the range of carrier frequencies in a vicinity of the broadband powerline communication system; compiling a database of the first characteristics of usage; and generating a schedule of use of the range of carrier frequencies by a conflicting user based on the first characteristics of usage. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer readable storage device storing computer program instructions, which, when executed on a processor, cause the processor to perform operations comprising:
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determining, over a first time period during which a broadband powerline communication system is not transmitting data over a range of carrier frequencies, first characteristics of usage of a radio environment over the range of carrier frequencies in a vicinity of the broadband powerline communication system; compiling a database of the first characteristics of usage; and generating a schedule of use of the range of carrier frequencies by a conflicting user based on the first characteristics of usage. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification