Packet retransmission using one or more delay requirements
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.
1. A method of packet retransmission comprising:
transmitting or receiving, using a transceiver, a plurality of packets,
wherein at least one first packet of the plurality of packets is associated with a first delay requirement,
wherein at least one second packet of the plurality of packets is associated with a second delay requirement, and
wherein the second delay requirement is lower than the first delay requirement; and
transmitting or receiving, using the transceiver, a message comprising acknowledgement (ACK) information of the at least one first packet,
wherein the ACK information is transmitted or received a plurality of times such that the ACK information is transmitted or received in a first DMT symbol and the ACK information is also transmitted or received in a second DMT symbol.
2. The method of claim 1 , further comprising passing the at least one second packet when it is received without error to a higher layer without waiting for receipt of other retransmitted packets.
3. The method of claim 1 , further comprising passing the at least one first packet when it is received without error to a higher layer without waiting for receipt of other retransmitted packets.
4. The method of claim 1 , further comprising waiting for receipt of other retransmitted packets before passing the at least one first packet a higher layer when they are received without error.
5. The method of claim 1 , further comprising identifying the at least one second packet of the plurality of packets as a packet that should not be retransmitted even when the packet is received in error.
6. The method of claim 1 , further comprising not retransmitting the at least one second packet of the plurality of packets.
7. The method of claim 1 , further comprising retransmitting the at least one first packet of the plurality of packets.
8. A system comprising:
a transceiver including a transmitter and a receiver configured to transmit or receive a plurality of packets,
wherein at least one first packet of the plurality of packets is associated with a first delay requirement,
wherein at least one second packet of the plurality of packets is associated with a second delay requirement, and
wherein the second delay requirement is lower than the first delay requirement;
the transceiver further configured to transmit or receive a message comprising acknowledgement (ACK) information of the at least one first packet,
wherein the ACK information is transmitted or received a plurality of times such that the ACK information is transmitted or received in a first DMT symbol and the ACK information is also transmitted or received in a second DMT symbol.
9. The system of claim 8 , further comprising the transceiver configured to pass the at least one second packet when it is received without error to a higher layer without waiting for receipt of other retransmitted packets.
10. The system of claim 8 , further comprising the transceiver configured to pass the at least one first packet when it is received without error to a higher layer without waiting for receipt of other retransmitted packets.
11. The system of claim 8 , further comprising the transceiver configured to wait for receipt of other retransmitted packets before passing the at least one first packet a higher layer when they are received without error.
12. The system of claim 8 , further comprising the transceiver configured to identify the at least one second packet of the plurality of packets as a packet that should not be retransmitted even when the packet is received in error.
13. The system of claim 8 , further comprising the transceiver configured to not retransmit the at least one second packet of the plurality of packets.
14. The system of claim 8 , further comprising the transceiver configured to retransmit the at least one first packet of the plurality of packets.
15. A non-transitory computer readable information storage media having stored thereon instructions that when executed by a processor cause to be performed a method of packet retransmission comprising:
transmitting or receiving, using a transceiver, a plurality of packets,
wherein at least one first packet of the plurality of packets is associated with a first delay requirement,
wherein at least one second packet of the plurality of packets is associated with a second delay requirement, and
wherein the second delay requirement is lower than the first delay requirement; and
transmitting or receiving, using the transceiver, a message comprising acknowledgement (ACK) information of the at least one first packet,
wherein the ACK information is transmitted or received a plurality of times such that the ACK information is transmitted or received in a first DMT symbol and the ACK information is also transmitted or received in a second DMT symbol.
16. The media of claim 15 , further comprising passing the at least one second packet when it is received without error to a higher layer without waiting for receipt of other retransmitted packets.
17. The media of claim 15 , further comprising passing the at least one first packet when it is received without error to a higher layer without waiting for receipt of other retransmitted packets.
18. The media of claim 15 , further comprising waiting for receipt of other retransmitted packets before passing the at least one first packet a higher layer when they are received without error.
19. The media of claim 15 , further comprising identifying the at least one second packet of the plurality of packets as a packet that should not be retransmitted even when the packet is received in error.
20. The media of claim 15 , further comprising not retransmitting the at least one second packet of the plurality of packets.
21. The media of claim 15 , further comprising retransmitting the at least one first packet of the plurality of packets.