Fast seamless joining of channels in a multi-channel communication system
US8300518B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2008 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Oct 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2203/058
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
At least one channel is joined to a group of active channels in a communication system by transmitting control signals to configure respective customer premises equipment (CPE) of the active channels into a joining mode of operation, and transmitting a joining signature sequence to CPE of the joining channel over a downstream data signal path of the joining channel. A central office (CO) or other access node of the system receives correlation results from respective active channel CPE, estimates crosstalk from the joining channel into the active channels based on the correlation results, configures a precoder based on the estimated crosstalk, and adds the joining channel to the group of active channels. The channels may comprise respective subscriber lines of a DSL communication system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.