Interference reduction for upstream signals in communication networks

Particular embodiments identify customer premise equipment (CPE) in a subscriber's premises that may potentially cause interference with other devices. For example, the interference may occur within an interfering spectrum where an interfering CPE transmits upstream in a frequency band that is...

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Bibliographic Details
Main Author Howe Jeffrey Joseph
Format Patent
LanguageEnglish
Published 08.08.2017
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:Particular embodiments identify customer premise equipment (CPE) in a subscriber's premises that may potentially cause interference with other devices. For example, the interference may occur within an interfering spectrum where an interfering CPE transmits upstream in a frequency band that is the downstream frequency band for other customer premise equipment, such as legacy CPEs. Once the CPE is identified, when the CPE sends a request to initialize the CPE on the network, a cable modem termination service (CMTS) may adjust the target power level for a transmitter transmitting upstream content within the interfering frequency spectrum. For example, for those CPEs that transmit upstream using upstream channels within an interfering spectrum, such as within 54-85 MHz, the power level for these CPE may be reduced. Other CPEs that are not transmitting upstream in this interfering spectrum may not have their power reduced.
Bibliography:Application Number: US201514942677