Method and apparatus for use of silent symbols in a communications network
First Claim
1. A method for characterize a communication channel on a communication network, comprising:
- a) receiving within a network node at least one silent symbol transmitted together with a packet; and
b) determining within the network node the amount of energy received by the network node during the silent symbol.
9 Assignments
0 Petitions
Accused Products
Abstract
A method for characterizing a communication channel on a communication network includes receiving within a network node at least one silent symbol transmitted together with a packet, and determining within the network node the amount of energy received by the network node during the silent symbol. Determining the amount of energy may include comparing the amount of energy received during a first silent symbol with the amount of energy received during subsequent silent symbols. The packet transmitted with the silent symbol may include a preamble and the silent symbol may be transmitted before the preamble. The packet may include data symbols and the silent symbol may be transmitted for a duration that is shorter than the duration of one data symbol transmitted in the packet.
14 Citations
38 Claims
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1. A method for characterize a communication channel on a communication network, comprising:
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a) receiving within a network node at least one silent symbol transmitted together with a packet; and b) determining within the network node the amount of energy received by the network node during the silent symbol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for characterizing a communication channel on a MoCA communication network, comprising:
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e) receiving within a network node of a MoCA network, instructions from a network coordinator to transmit at least one silent symbol; and f) transmitting from the network node at least one silent symbol. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method of characterizing a communication channel of a network including:
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a) in a node of the network, zeroing at least one of the subcarriers in the payload symbols; and b) transmitting from a transmitting node the at least one subcarrier with the zeroed payload symbols. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. A method of characterizing a communication channel of a network including:
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a) receiving in a node of the network at least one silent subcarrier transmitted by another node of the network, the payload symbols of the silent subcarrier having been zeroed; and b) in the receiving node of the network, measuring the energy received in frequency bins of the at least one silent subcarrier.
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33. A method of characterizing a communication channel of a network including:
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a) transmitting instructions from a network coordinator to a network node, the instructions instructing the network node to transmit a silent symbol; and b) receiving from the network node an indication of the amount of energy present on a subcarrier on which the silent symbol was transmitted. - View Dependent Claims (34, 35)
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36. A method of characterizing a communication channel of a network including:
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a) transmitting instructions from a network coordinator to a network node, the instructions instructing the network node to transmit a silent subcarrier; and b) receiving from the network node an indication of the amount of energy present on a subcarrier on which the silent subcarrier was transmitted. - View Dependent Claims (37, 38)
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Specification