Invention Application
US20150295684A1 DETERMINING AND MANAGING UPSTREAM PROFILES IN DOCSIS 3.1 NETWORK ENVIRONMENTS 有权
在DOCSIS 3.1网络环境中确定和管理上游配置文件

DETERMINING AND MANAGING UPSTREAM PROFILES IN DOCSIS 3.1 NETWORK ENVIRONMENTS
Abstract:
An example method for determining and managing upstream profiles in Data Over Cable Service Interface Specification (DOCSIS) 3.1 network environments is provided and includes determining, at a Converged Cable Access Platform (CCAP) core, channel conditions independent of any channel effect over a hybrid fiber coaxial (HFC) network between a remote physical layer (R-PHY) entity coupled to the CCAP core and a cable modem (CM) in the DOCSIS 3.1 network environment, and assigning an upstream profile to the CM based on the channel conditions. In specific embodiments, the channel conditions include signal to noise ratio (SNR), modulation error ratio (MER) or group delay. In some embodiments, assigning the upstream profile includes determining a quadrature amplitude modulation (QAM) order based on the SNR or MER, and determining a pilot pattern based on the group delay, the combination of the QAM order and the pilot pattern identifying the upstream profile.
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