Channel coding for real time wireless traffic
View Patent ↗Techniques and devices for channel coding real time wireless traffic are described herein. The techniques include initiating communication in an opportunistic network, receiving network performance metrics indicating a Quality of Service or a Quality of Experience, determining a channel coding based on the network performance metrics, and transmitting channel coded data. Network performance metrics may include indications of packet loss, packet delay, or packet delay jitter. Channel coding algorithms may include turbo encoding, Chase combining, or transmission time interval (TTI) bundling. Using channel coding may allow the recovery of lost or delayed data packets in an opportunistic environment where real time transmission cannot be scheduled or cannot be guaranteed.
1. A remote service device, comprising:
one or more processors;
a memory; and
one or more modules stored in the memory and executable by the one or more processors to perform operations comprising:
determining at least one network performance metric comprising a packet delay associated with a network;
determining a channel coding for an opportunistic data transmission from a communication device via a Wi-Fi network connection based in part on the at least one network performance metric and one or more of:
a channel provided by an access point for the Wi-Fi network connection; or
a timeslot provided by the access point for the Wi-Fi network connection;
applying the channel coding to the opportunistic data transmission, wherein the channel coding modifies the opportunistic data transmission to comprise one or more real time data packets associated with one or more other opportunistic data transmissions; and
receiving real time data based in part on the channel coding via the opportunistic data transmission, wherein the opportunistic data transmission is an unscheduled data transmission that occurs at discrete opportunities where the channel or the timeslot is available.
2. The remote service device of claim 1 , wherein the operations further comprise transmitting the channel coding to the communication device before the communication device performs the opportunistic data transmission.
3. The remote service device of claim 1 , wherein the operations further comprise:
determining that one or more data packets was lost or delayed in the opportunistic data transmission; and
recovering the one or more data packets based in part on the channel coding.
4. The remote service device of claim 1 , wherein the channel coding includes at least one of turbo encoding, Chase combining, or transmission time interval (TTI) bundling.
5. One or more computer storage devices storing computer-executable instructions configured to program a computing device to perform operations comprising:
determining at least one network performance metric comprising a packet delay associated with a network;
determining a channel coding for an opportunistic data transmission via a Wi-Fi network connection based in part on the at least one network performance metric, and one or more of:
a channel provided by an access point for a Wi-Fi network connection; or
a timeslot provided by the access point for the Wi-Fi network connection;
applying the channel coding to the opportunistic data transmission, wherein the channel coding modifies the opportunistic data transmission to comprise one or more real time data packets associated with one or more other opportunistic data transmissions; and
receiving real time data based in part on the channel coding via the opportunistic data transmission, wherein the opportunistic data transmission is an unscheduled data transmission that occurs at a discrete opportunity where the channel or the timeslot is available.
6. The one or more computer storage devices of claim 5 , wherein the channel coding includes at least one of turbo encoding, Chase combining, or transmission time interval (TTI) bundling.
7. The one or more computer storage devices of claim 5 , wherein the at least one network performance metric indicates a Quality of Service of an uplink transmission from a communication device to a remote service device, and wherein the operations further comprise transmitting the at least one network performance metric or the channel coding to the communication device.
8. The one or more computer storage devices of claim 5 , wherein the real time data is at least one of voice data or video data.
9. The one or more computer storage devices of claim 5 , wherein the operations further comprise determining a tolerable transmission time delay for the opportunistic data transmission.
10. The one or more computer storage devices of claim 5 , wherein the operations further comprise:
determining at least one missing packet of the real time data; and
reconstructing the at least one missing packet from the channel coding.
11. The one or more computer storage devices of claim 5 , wherein the operations further comprise:
receiving an updated network performance metric;
determining an updated channel coding based in part on the updated network performance metric; and
transmitting the updated channel coding.
12. The one or more computer storage devices of claim 5 , wherein the operations further comprise:
determining at least one missing packet of the real time data; and
requesting a retransmission of the at least one missing packet.
13. The one or more computer storage devices of claim 5 , wherein the operations further comprise transmitting the at least one network performance metric to a communication device.
14. A device, comprising:
one or more processors;
one or more memories; and
one or more modules stored in the one or more memories and executable by the one or more processors to perform operations comprising:
receiving at least one network performance metric comprising a packet delay associated with a network;
determining a channel coding for an opportunistic data transmission over a Wi-Fi network connection based in part on the at least one network performance metric and one or more of:
a channel provided by an access point for the Wi-Fi network connection; or
a timeslot provided by the access point for the Wi-Fi network connection;
applying the channel coding to the opportunistic data transmission, wherein the channel coding modifies the opportunistic data transmission to comprise one or more real time data packets associated with one or more other opportunistic data transmissions; and
transmitting real time data based in part on the channel coding via the opportunistic data transmission over the Wi-Fi network connection, wherein the opportunistic data transmission is an unscheduled data transmission that occurs at a discrete opportunity where the channel or the timeslot is available.
15. The device of claim 14 , wherein the at least one network performance metric further includes a Quality of Service of an uplink transmission of the device to a remote service device via the Wi-Fi network connection.
16. The device of claim 14 , wherein the channel coding includes at least one of turbo encoding, Chase combining, or transmission time interval (TTI) bundling.
17. The device of claim 14 , wherein the operations further comprise:
transmitting the channel coding to a communication device associated with the network before the communication device performs the opportunistic data transmission.
18. The device of claim 14 , wherein the operations further comprise:
determining that one or more data packets was lost or delayed in the opportunistic data transmission; and
recovering the one or more data packets based in part on the channel coding.
19. The one or more computer storage devices of claim 5 , wherein the operations further comprise transmitting the channel coding to a communication device before the communication device performs the opportunistic data transmission.
20. The device of claim 14 , wherein the operations further comprise:
receiving an updated network performance metric;
determining an updated channel coding based in part on the updated network performance metric; and
transmitting the updated channel coding.