Packet retransmission

Patent metadata

Field	Value
Publication number	US-9749235-B2
Application number	US-201514742334-A
Country	US
Kind code	B2
Filing date	Jun 17, 2015
Priority date	Apr 12, 2006
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

Through the identification of different packet-types, packets can be handled based on an assigned packet handling identifier. This identifier can, for example, enable forwarding of latency-sensitive packets without delay and allow error-sensitive packets to be stored for possible retransmission. In another embodiment, and optionally in conjunction with retransmission protocols including a packet handling identifier, a memory used for retransmission of packets can be shared with other transceiver functionality such as, coding, decoding, interleaving, deinterleaving, error correction, and the like.

First claim

The invention claimed is:

1. An apparatus comprising:
a multicarrier transceiver including a processor and memory operable to:
transmit a packet using a forward error correction encoder and an interleaver, wherein the packet comprises a header field and a plurality of Reed-Solomon codewords, and wherein the header field comprises a sequence identifier (SID); and
receive a message using a forward error correction decoder and without using a deinterleaver, wherein the message is received in a single DMT symbol and wherein the message includes an acknowledgement (ACK) or a negative acknowledgement (NACK) of the transmitted packet.

2. The apparatus of claim 1 , wherein the received message has a higher immunity to noise than the transmitted packet.

3. The apparatus of claim 1 , wherein the transceiver is operable to retransmit the packet using the forward error correction encoder and the interleaver.

4. The apparatus of claim 1 , wherein the message indicates at least one count value associated with the packet.

5. The apparatus of claim 1 , wherein the apparatus is a linecard that is capable of transporting video, voice and data.

6. The apparatus of claim 1 , wherein the apparatus is a customer premises equipment that is capable of transporting video, voice and data.

7. The apparatus of claim 1 , wherein the transceiver includes at least one digital signal processor.

8. The apparatus of claim 1 , wherein the transceiver includes at least one ASIC.

9. An apparatus comprising:
a multicarrier transceiver including a processor and memory operable to:
receive a packet using a forward error correction decoder and a deinterleaver, wherein the packet comprises a header field and a plurality of Reed-Solomon codewords, and wherein the header field comprises a sequence identifier (SID); and
transmit a message using a forward error correction encoder and without using an interleaver, wherein the message is transmitted in a single DMT symbol and wherein the message includes an acknowledgement (ACK) or a negative acknowledgement (NACK) of the received packet.

10. The apparatus of claim 9 , wherein the transmitted message has a higher immunity to noise than the received packet.

11. The apparatus of claim 9 , wherein the transceiver is operable to receive a retransmitted packet using the forward error correction decoder and the deinterleaver.

12. The apparatus of claim 9 , wherein the message indicates at least one count value associated with the packet.

13. The apparatus of claim 9 , wherein the apparatus is a linecard that is capable of transporting video, voice and data.

14. The apparatus of claim 9 , wherein the apparatus is a customer premises equipment that is capable of transporting video, voice and data.

15. The apparatus of claim 9 , wherein the transceiver includes at least one digital signal processor.

16. The apparatus of claim 9 , wherein the transceiver includes at least one ASIC.

17. A method, in a multicarrier transceiver, comprising:
transmitting a packet using a forward error correction encoder and an interleaver, wherein the packet comprises a header field and a plurality of Reed-Solomon codewords, and wherein the header field comprises a sequence identifier (SID); and
receiving a message using a forward error correction decoder and without using a deinterleaver, wherein the message is received in a single DMT symbol and wherein the message includes an acknowledgement (ACK) or a negative acknowledgement (NACK) of the transmitted packet.

18. The method of claim 17 , wherein the received message has a higher immunity to noise than the transmitted packet.

19. The method of claim 17 , further comprising retransmitting the packet using the forward error correction encoder and the interleaver.

20. The method of claim 17 , wherein the message indicates at least one count value associated with the packet.

21. The method of claim 17 , wherein the method is performed in a linecard that is transporting video, voice and data.

22. The method of claim 17 , wherein the method is performed in a customer premises equipment that is transporting video, voice and data.

23. A method, in a multicarrier transceiver, comprising:
receiving a packet using a forward error correction decoder and a deinterleaver, wherein the packet comprises a header field and a plurality of Reed-Solomon codewords, and wherein the header field comprises a sequence identifier (SID); and
transmitting a message using a forward error correction encoder and without using an interleaver, wherein the message is transmitted in a single DMT symbol and wherein the message includes an acknowledgement (ACK) or a negative acknowledgement (NACK) of the received packet.

24. The method of claim 23 , wherein the transmitted message has a higher immunity to noise than the received packet.

25. The method of claim 23 , further comprising receiving a retransmitted packet using the forward error correction decoder and the deinterleaver.

26. The method of claim 23 , wherein the message indicates at least one count value associated with the packet.

27. The method of claim 23 , wherein the method is performed in a linecard that is transporting video, voice and data.

28. The method of claim 23 , wherein the method is performed in a customer premises equipment that is transporting video, voice and data.

Assignees

• Tq Delta Llc

Inventors

• Tzannes Marcos C

Classifications

• H04L2012/5647

  Cell loss · CPC title

• H04L47/2441

  relying on flow classification, e.g. using integrated services [IntServ] · CPC title

• H04L47/32

  by discarding or delaying data units, e.g. packets or frames · CPC title

• H04L1/1874

  Buffer management · CPC title

• H04L1/1835 Primary

  Buffer management · CPC title