Patent ID: 8917747
Filing Date: 2014-12-23
Classification: H04B,H04M

Abstract:
1. A method for transporting DSL backchannel data from downstream-end DSL apparatus to upstream-end DSL apparatus in a vectored, bonded-line DSL system, the method comprising: generating backchannel data; encapsulating the backchannel data using Layer 2 encapsulation; packetizing upstream user data into Ethernet packets; combining the backchannel data and the upstream user data; transmitting the combined data to upstream-end DSL apparatus; separating the combined data in the upstream-end DSL apparatus; decapsulating the Layer 2 encapsulated backchannel data; and routing the encapsulated backchannel data to a vectoring control entity, wherein the backchannel data includes error samples from the downstream-end DSL apparatus, and wherein the routed backchannel data comprises data for mitigating FEXT crosstalk between the upstream-end DSL apparatus and the downstream-end DSL apparatus.