摘要:
A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.
摘要:
A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.
摘要:
A channel transmission characteristic obtaining method and apparatus, where the method includes obtaining transmission characteristic curves of at least two channels in a cable modem in a channel scanning manner, where the at least two channels form one contiguous frequency band, and frequencies corresponding to the transmission characteristic curves of the at least two channels include frequency values on a same order of magnitude, and amplitude values on a same order of magnitude, translating the transmission characteristic curves of the channels in an amplitude direction, to make amplitudes corresponding to same frequencies on all transmission characteristic curves overlapped in order to form one continuous curve, and setting the continuous curve as a transmission characteristic curve of the contiguous frequency band.
摘要:
A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.
摘要:
The present invention provides a method, an apparatus, and a system for reducing digital subscriber line interference. The method includes identifying at least one legacy digital subscriber line in a digital subscriber line DSL legacy line set, obtaining a target power spectral density mask value of the legacy digital subscriber line, and reducing power spectral density of a transmit signal on the legacy digital subscriber line according to the target power spectral density mask value.
摘要:
Embodiments of the present invention provide a channel selection method and an apparatus. The WiFi network includes a first access point, a second access point, and a third access point. The first access point supports connections on at least two different frequency bands, and the at least two different frequency bands include a first frequency band and a second frequency band. The method includes: directly cascading, by the first access point by using the first frequency band, to the second access point by using the second access point as a higher-level access point; and receiving, by the first access point, a cascading access request of the third access point, and allowing the third access point to directly cascade as a lower-level access point to the first access point by using the second frequency band.
摘要:
The present invention discloses a power control method, apparatus, and system. A vectoring control entity acquires a power control factor Diik of an ith transmit end on a kth subcarrier, where the ith transmit end is one transceiver of M transceivers located at a central office end, 1≤k≤K, and K indicates a quantity of subcarriers; and sends the power control factor Diik to the ith transmit end, so that if it is determined, according to the power control factor Diik, that the power control factor Diik is less than a power gain factor gik, of a current transmit signal of the ith transmit end, on the kth subcarrier, the ith transmit end modifies the power gain factor gik of the current transmit signal, so that a modified power gain factor g′ik is less than or equal to the power control factor Diik.
摘要:
A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.
摘要:
Embodiments of the present invention provide a power control method, device, and system, and relate to the field of communications technologies. The method is applied to a vectoring system, where the vectoring system includes multiple lines, each line includes multiple subcarriers, and for each subcarrier, a crosstalk channel is formed between the multiple lines, and the method includes: obtaining a closed subcarrier set of the multiple lines according to line crosstalk channel information corresponding to each subcarrier of the multiple subcarriers, where the closed subcarrier set includes a subcarrier set required to be closed on the multiple lines; and sending the closed subcarrier set of the multiple lines to a transceiver, and closing, by the transceiver, a transmit signal on a subcarrier required to be closed on each line.
摘要:
A failure analysis method and device, where the method includes obtaining a frequency domain response amplitude of a channel from a hybrid fiber-coaxial (HFC) network, performing linear fitting on an effective portion of the frequency domain response amplitude to determine a channel slope value, and performing channel failure analysis according to the channel slope value. Failure analysis is performed according to the obtained channel slope value, and the channel slope value is a new failure analysis parameter. In this way, means of channel failure analysis increase, and channel failure analysis is more accurate.