# US 2021/0242961 A1 · Impulse noise management

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- Number: US 2021/0242961 A1
- Document ID: US20210242961A1
- Status: Published application
- Kind: A1
- Application number: 17/235,558
- Filed: 2021-04-20
- Published: 2021-08-05
- Earliest claimed: 2004-03-03
- Assignees: Tq Delta, LLC
- Applicants: Tq Delta, LLC
- Inventors: Marcos C. TZANNES
- Web page: https://patentgrep.com/patent/US20210242961A1

## CPC

- H04L 1/0015: {characterised by the adaptation strategy}
- H04B 15/00: Suppression or limitation of noise or interference (by means associated with receiver H04B1/10)
- H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)}
- H04L 1/0023: {characterised by the signalling}
- H04L 1/0025: {Transmission of mode-switching indication}
- H04L 1/0075: {Transmission of coding parameters to receiver (H04L1/0023 takes precedence)}
- H04L 1/20: using signal quality detector
- H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling}
- H04L 1/0071: {Use of interleaving (interleaving per se H03M13/27)}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION

## Abstract

A discrete multitone transceiver (DMT) includes a deinterleaver operable to de-interleave a plurality of bits. The DMT further includes: a forward error correction decoder operable to decode the plurality of bits, a module operable to determine, during Showtime, an impulse noise protection value, wherein the impulse protection value specifies a number corrupted DMT symbols that can be corrected by the forward error correction decoder in combination with the deinterleaver, and a receiver coupled to the deinterleaver. The receiver receives using a first interleaver parameter value, receives a flag signal, and changes to receiving using a second interleaver parameter value that is different than the first interleaver parameter value, wherein the second interleaver parameter value is used for reception on a pre-defined forward error correction codeword boundary following reception of the flag signal.

## Claims

### Claim 1

In a transceiver, a method of adapting the impulse noise protection capability during steady-state communication comprising:
receiving using a first FIP setting; and
switching to receiving using a second FIP setting.

### Claim at position 2

2-72. (canceled)