摘要:
Methods for computing system data (e.g., the number of CMs per DS-SG or US-SG) and traffic data (e.g., the number of online CMs, the number of active CMs, the percentage of time a CM is online, the percentage of time a CM is active, and the concurrency of CMs) in a DOCSIS system are disclosed.
摘要:
A method performed by a central network device, such as a network edge device, or a CMTS, determines whether some of a plurality of user devices coupled to a communication device are transmitting at substantially their respective maximum power output level over a given channel. If the central device determines that some of the devices are operating at near their maximum output level (“power pegged,) the central device searches for another channel that can carry the traffic of the power pegged devices at reduced data rate. If another channel can accommodate transmission of signals of the power pegged device, the central device instructs the power pegged devices to tune to the new channel at a reduced data rate compared to the data rate of the current channel.
摘要:
Methods for accelerating a fine carrier phase and frequency offset recovery algorithm in a receiver of a communication system are provided. More specifically, a method for estimating and compensating for an initial phase offset of a received signal provided. Computing an initial phase shift and compensating for it can reduce the time needed to provide fine estimation and compensation for carrier phase and frequency offset. Furthermore, computing an initial phase shift and compensating for it also can improve system performance by reducing the non-linearity that otherwise would be introduced into the system by fine carrier phase and frequency offset algorithms.
摘要:
Methods for providing adaptive equalization in the presence of a burst error are provided. If an equalization algorithm has converged and burst errors are present during a symbol interval, the equalizer coefficients remain unchanged during the symbol interval. If the burst error is no longer present during the next symbol interval, the equalizer coefficients are updated based on the previously converged coefficients.
摘要:
A method performed by a central network device, such as a network edge device, or a CMTS, determines whether some of a plurality of user devices coupled to a communication device are transmitting at substantially their respective maximum power output level over a given channel. If the central device determines that some of the devices are operating at near their maximum output level (“power pegged,) the central device searches for another channel that can carry the traffic of the power pegged devices at reduced data rate. If another channel can accommodate transmission of signals of the power pegged device, the central device instructs the power pegged devices to tune to the new channel at a reduced data rate compared to the data rate of the current channel.
摘要:
Methods for computing system data (e.g., the number of CMs per DS-SG or US-SG) and traffic data (e.g., the number of online CMs, the number of active CMs, the percentage of time a CM is online, the percentage of time a CM is active, and the concurrency of CMs) in a DOCSIS system are disclosed.