DEVICE AND METHOD FOR MITIGATING EFFECTS OF IMPULSE NOISE ON DATA PACKET TRANSFER

• US 20070198898A1
• Filed: 01/19/2007
• Published: 08/23/2007
• Est. Priority Date: 02/07/2006
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Van Acker, Katleen Peggie Florimond, Vandaele, Piet Michel Albert, YSEBAERT, Geert Bert Maarten
• Granted Patent: US 9,455,800 B2
• Time in Patent Office: Days
• US Class Current: 714/776
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1806 Go-back-N protocols
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements

Abstract

A device (112) for mitigating effects of impulse noise on data packet transfer over a communication line (102) is configured at least partially according to physical layer characteristics of the communication line (102). As an example, a data packet retransmission device (112) might be configured to retransmit in response to each retransmission request an amount of data packets depending on the physical layer interleaving delay ID and/or data bit rate DBR.

Claims

1. A device (112) for mitigating effects of impulse noise on data packet transfer over a communication line (102),

CHARACTERIZED IN THAT said device (112) is configured at least partially according to physical layer characteristics of said communication line (102) or other communication lines in a network where said communication line forms part of.

2. A device (112) according to claim 1,

CHARACTERIZED IN THAT said device (112) is a data packet retransmission device comprising:

a. means for memorizing recently transmitted data packets;

b. means for receiving a retransmission request for a corrupted data packet;

c. means for generating time-outs; and

d. means for retransmitting at least said corrupted data packet.

3. A device (112) according to claim 2,

CHARACTERIZED IN THAT said means for retransmitting is configured to retransmit in response to each retransmission request an amount of data packets starting with said corrupted data packet, said amount being dependent on the physical layer interleaving delay ID of said communication line (102).

4. A device (112) according to claim 2,

CHARACTERIZED IN THAT said means for retransmitting is configured to retransmit in response to each retransmission request an amount of data packets starting with said corrupted data packet, said amount being dependent on the physical layer data bit rate DBR of said communication line (102).

5. A device (112) according to claim 3,

CHARACTERIZED IN THAT said means for retransmitting is configured to retransmit in response to each retransmission request an amount of data packets starting with said corrupted data packet, said amount being dependent on the physical layer data bit rate DBR of said communication line (102);

further CHARACTERIZED IN THAT said amount is configured to equal ceil (ID×

DBR/DPL), with DPL being the packet length of said data packets.

6. A device according to claim 1,

CHARACTERIZED IN THAT said device is a forward error correction device.

7. A device according to claim 6,

CHARACTERIZED IN THAT said forward error correction device is configured according to physical layer inter-arrival time statistics for impulse noise measured on said communication line.

8. A device according to claim 6,

CHARACTERIZED IN THAT said forward error correction device is configured according to ceil (ID×

DBR/DPL), with DPL being the packet length of said data packets.

9. A device (112) according to claim 1,

CHARACTERIZED IN THAT said device is integrated in a chip.

10. A device according to claim 1,

CHARACTERIZED IN THAT said device is integrated in a server.

11. A device according to claim 1,

CHARACTERIZED IN THAT said device is implemented on a linecard.

12. A physical layer agent integrated in a device (111) that implements physical layer functions for data packet transfer over a communication line (102),

CHARACTERIZED IN THAT said physical layer agent is adapted to interface with and to share physical layer characteristics with an impulse noise mitigating device (112) as defined in claim 1.

13. A method for mitigating effects of impulse noise on data packet transfer over a communication line (102),

CHARACTERIZED IN THAT said method comprises configuring an impulse noise mitigating device (112) at least partially according to physical layer characteristics of said communication line (102).