Multiple channel digital subscriber line framer/deframer system and method
US8156778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2010 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | May 28, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5434
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The framer, also referred to as the scrambler/Reed-Solomon encoder (SRS), is a part of the transmitter and accepts user and control data in the form of one or more logical channels, partitions this data into frames, adds error correction codes, randomizes the data through a scrambler, and multiplexes logical channels into a single data stream. The multiplexed data is then passed to the constellation encoder as the next step in the formation of the VDSL symbol. The deframer, also referred as the descrambler/Reed-Solomon decoder (DRS), is part of the receiver and performs the inverse function of the framer. Disclosed is a highly configurable hardware framer/deframer that includes a digital signal processor interface configured to provide high level control, a FIFO coupled to data interfaces, a scrambler and CRC generator, a Reed-Solomon encoder, an interleaver, a data interface coupled to a constellation encoder, a data interface coupled to a constellation decoder, a deinterleaver, a Reed-Solomon decoder, descrambler and CRC check, an interface to external data sync, methods for control of configuration of data paths between hardware blocks, and methods for control and configuration …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.