摘要:
An apparatus comprises at least one vectoring engine (1511; 1512) and a cross-connect (1520) coupled to the vectoring engine (1511; 1512). The cross-connect (1520) is to couple with each of a plurality of customer premises equipment (CPE) devices (1541; 1592; 1543; 1544) via a respective DSL loop (1531; 1532; 1533; 1534). An interface is to receive instructions for the cross-connect (1520) to couple the vectoring engine (1511) to a nonoverlapping subset of the CPE devices (1541; 1543) via the respective DSL loops (1532,- 1533). The interface is further to receive instructions for the vectoring engine (1511) to apply vectoring to the DSL loop via which to couple one of the CPE devices to the cross-connect.
摘要:
A method, system and apparatus to self-determine equalization parameters for a channel. An initiator sends an equalization insensitive signal (EIS) to a responder on channel to be equalized and begins a count. A responder responds with an EIS. When the initiator receives the response EIS the count is terminated. The count, which constitutes a measure of delay in the channel, may be used to determine desirable equalization parameters for the channel.
摘要:
An apparatus comprises at least one vectoring engine and a cross-connect coupled to the vectoring engine. The cross-connect is to couple with each of a plurality of customer premises equipment (CPE) devices via a respective DSL loop. An interface is to receive instructions for the cross-connect to couple the vectoring engine to a nonoverlapping subset of the CPE devices via the respective DSL loops. The interface is further to receive instructions for the vectoring engine to apply vectoring to the DSL loop via which to couple one of the CPE devices to the cross-connect.
摘要:
An adaptive-equalizer initialization system performs three functions: frequency offset estimation, taps estimation for chromatic dispersion filters, and taps initialization for an adaptive equalizer. The system contains hardware FFT and peak detector units that sense a pure tone that marks the beginning of a known, short data sequence.
摘要:
A method, system and apparatus to self-determine equalization parameters for a channel. An initiator sends an equalization insensitive signal (EIS) to a responder on channel to be equalized and begins a count. A responder responds with an EIS. When the initiator receives the response EIS the count is terminated. The count, which constitutes a measure of delay in the channel, may be used to determine desirable equalization parameters for the channel.