Patent ID: 8854942
Filing Date: 2014-10-07
Classification: H04B,H04L,H04M,H04W

Abstract:
1. A system for communicating vectoring information for a multi-card vectoring group, comprising: a ring connection; and a plurality of line cards coupled to a plurality of subscriber lines, the plurality of line cards including at least a first line card, a second line card, and a third line card, each of the line cards coupled to a respective set of the subscriber lines and the ring connection, each of the line cards having at least one transceiver that is a member of the multi-card vectoring group, each of the line cards having vector logic configured to cancel crosstalk, based on a vectoring stream carried by the ring connection, affecting symbols communicated by the respective line card via the plurality of subscriber lines, the vectoring stream comprising symbols communicated across the plurality of subscriber lines coupled to the plurality of line cards, wherein at least one of the line cards comprises a ring interface coupled to the ring connection and configured to detect a failure on the first line card, the ring interface further configured to cause the vectoring stream to bypass the first line card in response to the failure, wherein the first line card has a first ring port coupled to the ring connection, a second ring port coupled to the ring connection, and a relay element residing on the first line card and coupled to the first and second ring ports, wherein the ring interface is configured to transition the relay element to a bypass state in response to the failure, and wherein the relay element electrically couples the first ring port to the second ring port when in the bypass state.