System and methods for home network communications
First Claim
1. A method of managing communications among a plurality of premise installations in a cable communications distribution system, the cable distribution system including at least one splitter for spreading communicated signals from a headend to a plurality of branches, each of the plurality of branches having at least one premise installation, the method comprising the steps of:
- determining an attenuation parameter for each of a plurality of components in the distribution system;
determining an isolation parameter between branches coupled to the at least one splitter;
calculating an overall signal attenuation over a selected frequency band between premise installations on different ones of the plurality of branches; and
responsive to the overall signal attenuation exceeding a minimum isolation threshold value between first and second branches, assigning a frequency within the selected frequency band to a premise installation on each of the first and second branches.
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Accused Products
Abstract
A system that permits use of existing cable TV wiring for home networking is disclosed. Because of the presence of splitters, notch filters, and other components in the cable distribution system, certain of the premises installations in the system can locally communicate over the same frequency as one another, without interference. In a disclosed embodiment, the cable operator determines the attenuation and isolation among different premises in the system, and then assigns home network frequencies to the particular premises, with those premises installations that are sufficiently isolated from one another being assigned the same home network frequency.
192 Citations
11 Claims
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1. A method of managing communications among a plurality of premise installations in a cable communications distribution system, the cable distribution system including at least one splitter for spreading communicated signals from a headend to a plurality of branches, each of the plurality of branches having at least one premise installation, the method comprising the steps of:
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determining an attenuation parameter for each of a plurality of components in the distribution system;
determining an isolation parameter between branches coupled to the at least one splitter;
calculating an overall signal attenuation over a selected frequency band between premise installations on different ones of the plurality of branches; and
responsive to the overall signal attenuation exceeding a minimum isolation threshold value between first and second branches, assigning a frequency within the selected frequency band to a premise installation on each of the first and second branches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification