Method and apparatus for multimedia communication over packet channels

A method comprising:

• applying a forward error correction (FEC) code to a first group of data packets to create a set of parity packets corresponding to the first group of data packets;
• transmitting the first group of data packets and transmitting the set of corresponding parity packets after the first group of data packets have been transmitted;
• determining a second group of data packets is dependent upon the first group of data packets;
• in response to receiving a positive acknowledgement corresponding to the first group of packets, ceasing to send parity packets corresponding to the first group of packets and sending the second group of data packets;
• in response to not receiving the acknowledgement, not sending the second group of data packets when the second group of data packets is dependent upon the first group of data packets and continuing to transmit the parity packets corresponding to the first group of data packets;
• and
• transmitting the set of parity packets corresponding to the first group of data packets after a separate set of data packets have been transmitted, wherein a period of time to transmit the separate set of data packets is equal to or greater than a predetermined period of time.

A method comprising:

• applying a forward error correction code to a first and second group of data packets to create a set of parity packets corresponding to the first and second group of data packets, the second group of data packets independent of the first group of data packets;
• transmitting the first and second group of data packets, and transmitting the set of corresponding parity packets after the data packets have been transmitted;
• determining a third group of data packets is dependent upon the first group of data packets;
• in response to receiving a positive acknowledgement corresponding to the first group of packets, ceasing to send parity packets corresponding to the first group of packets and sending the third group of data packets;
• and
• in response to not receiving the acknowledgment, not sending the third group of data packets, when the third group of data packets is dependent upon the first group of data packets, and continuing to transmit the parity packets.

A system comprising:

• an encoder to apply a forward error correction code to a first group of data packets create a set of parity packets corresponding to the first group of data packets;
• a transmitter to transmit the first group of data packets and begin to transmit the set of parity packets after sending the first group of data packets;
• the transmitter to determine a second group of data packets is dependent upon the first group of data packets;
• the transmitter to cease sending the parity packets corresponding to the first group of packets and begin sending the second group of data packets, in response to receiving a positive acknowledgement corresponding to the first group of packets;
• the transmitter to continue sending the parity packets corresponding to the first group of packets, in response to not receiving the acknowledgment for the first group of data packets;
• the transmitter, in response to not receiving the acknowledgment, to continue to transmit the parity packets corresponding to the first group of data packets until all parity packets corresponding to the first group of data packets have been transmitted;
• and
• the transmitter, in response to having transmitted all parity packets corresponding to the first group of data packets and having not received the acknowledgement, is to drop and not transmit the second group of data packets when the second group of data packets is dependent upon the first group of data packets.

A machine-accessible medium that provides instructions that, if executed by a machine, will cause the machine to perform operations comprising:

• applying a forward error correction (FEC) code to a first group of data packets to create a set of parity packets corresponding to the first group of data packets;
• transmitting the first group of data packets, and transmitting the set of corresponding parity packets after the first group of data packets have been transmitted;
• determining a second group of data packets is dependent upon the first group of data packets;
• in response to receiving a positive acknowledgement corresponding to the first group of packets, ceasing to send parity packets and sending the second group of data packets;
• in response to not receiving the acknowledgment, not sending the second group of data packets and continuing to transmit the parity packets corresponding to the first group of data packets;
• in response to not receiving the acknowledgement, continuing to transmit the parity packets corresponding to the first group of data packets until all parity packets corresponding to the first group of data packets have been transmitted;
• and
• in response to having transmitted all parity packets corresponding to the first group of data packets and having not received the acknowledgement, dropping and not transmitting the second group of data packets when the second group of data packets is dependent upon the first group of data packets.

A machine-accessible medium that provides instructions that, if executed by a machine, will cause the machine to perform operations comprising:

• applying a forward error correction (FEC) code to a first group of data packets to create a set of parity packets corresponding to the first group of data packets;
• transmitting the first group of data packets, and transmitting the set of corresponding parity packets after the first group of data packets have been transmitted;
• determining a second group of data packets is dependent upon the first group of data packets;
• in response to receiving a positive acknowledgement corresponding to the first group of packets, ceasing to send parity packets and sending the second group of data packets;
• in response to not receiving the acknowledgment, not sending the second group of data packets, when the second group of data packets is dependent upon the first group of data packets, and continuing to transmit the parity packets corresponding to the first group of data packets;
• and
• transmitting a set of parity packets corresponding to the first group of data packets after a separate set of data packets have been transmitted, wherein a period of time to transmit the separate set of data packets is equal to or greater than a predetermined period of time.