Leveraging full duplex for rate adaptation in wireless LANs
Techniques for presenting communication between two or more stations in a WLAN environment are provided. Specifically, methods are presented, that when taken alone or together, provide a device or group of devices with an efficient way for fast rate adaptation based on full duplex functionality, increasing link and network throughput. The present disclosure includes a method that provides a fast rate adaptation by leveraging full duplex in order to get immediate channel quality feedback.
1. A wireless device, comprising:
a memory;
a transceiver, the transceiver configured to:
transmit a plurality of data frames; and
receive channel quality information, wherein the channel quality information is received during transmission of the plurality of data frames;
a processor and a rate selection module, the processor and the rate selection module configured to:
compute an updated data rate, wherein the updated data rate is determined at least based in part on the channel quality information received; and
terminate transmission of the plurality of data frames if the updated data rate provides an increase in throughput; and
the transceiver further configured to:
re-transmit the plurality of data frames; and
receive a block acknowledgement, and when the block acknowledgement occurs before a predetermined time, a Contention-Free End (CF-END) signal is sent.
2. The wireless device of claim 1 , wherein the data frames are an Aggregate-Media Access Control Protocol Data Unit (A-MPDU).
3. The wireless device of claim 1 , wherein the channel quality information is received during a full duplex communication.
4. The wireless device of claim 1 , wherein at least one of the plurality of data frames does not include payload information.
5. The wireless device of claim 1 , wherein the channel quality information includes a receiver identification.
6. The wireless device of claim 1 , wherein the channel quality information includes correct packet receipt identification.
7. The wireless device of claim 1 , wherein the updated data rate can be faster or slower than an actual transmission rate.
8. The wireless device of claim 1 , wherein receipt of the block acknowledgement occurs before a predetermined time.
9. The wireless device of claim 8 , wherein after checking for a time remaining in the transmission as indicated in a PHY Header and established by a NAV, if the block acknowledgement occurs before the predetermined time, the Contention-Free End (CF-END) signal is sent.
10. The wireless device of claim 9 , wherein the CF-END signal alerts the network the medium is available for contention.
11. The wireless device of claim 1 , further comprising determining not to terminate transmission if the updated data rate does not provide an increase throughput.
12. A method comprising:
transmitting, by a transceiver, a plurality of data frames;
receiving, by the transceiver, channel quality information, wherein the channel quality information is received during transmission of the plurality of data frames;
computing, by a rate selection module, an updated data rate, wherein the updated data rate is determined at least based in part on the channel quality information received;
determining, by the rate selection module, to terminate transmission if the updated data rate provides an increase in throughput;
re-transmitting, by the transceiver, the plurality of data frames; and
receiving, by the transceiver, a block acknowledgement, and when the block acknowledgment occurs before a predetermined time, a Contention-Free End (CF-END) signal is sent.
13. The method of claim 12 , wherein the data frames are an Aggregate-Media Access Control Protocol Data Unit (A-MPDU).
14. The method of claim 12 , wherein the channel quality information is received during a full duplex communication.
15. The method of claim 12 , wherein at least one of the plurality of data frames does not include payload information.
16. The method of claim 12 , wherein the channel quality information includes correct packet receipt identification.
17. The method of claim 12 , wherein the updated data rate can be faster or slower than an actual transmission rate.
18. The method of claim 12 , wherein receipt of the block acknowledgement occurs before a predetermined time, and/or wherein after checking for a time remaining in the transmission as indicated in a PHY Header and established by a NAV, if the block acknowledgement occurs before the predetermined time, the Contention-Free End (CF-END) signal is sent, and/or wherein the CF-END signal alerts the network the medium is available for contention.
19. The method of claim 12 , further comprising determining not to terminate transmission if the updated data rate does not provide an increase throughput.
20. A non-transitory computer readable medium having instructions thereon that when executed by at least one processor of a wireless device perform a method comprising:
transmitting, by a transceiver, a plurality of data frames;
receiving, by the transceiver, channel quality information, wherein the channel quality information is received during transmission of the plurality of data frames;
computing, by a rate selection module, an updated data rate, wherein the updated data rate is determined at least based in part on the channel quality information received;
determining, by the rate selection module, to terminate transmission if the updated data rate provides an increase in throughput;
re-transmitting, by the transceiver, the plurality of data frames; and
receiving, by the transceiver, a block acknowledgement, and when the block acknowledgement occurs before a predetermined time, a Contention-Free End (CF-END) signal is sent.
21. The non-transitory medium of claim 20 , wherein the data frames are an Aggregate-Media Access Control Protocol Data Unit (A-MPDU).
22. The non-transitory medium of claim 20 , wherein the channel quality information is received during a full duplex communication.
23. The non-transitory medium of claim 20 , wherein at least one of the plurality of data frames does not include payload information.
24. The non-transitory medium of claim 20 , wherein receipt of the block acknowledgement occurs before a predetermined time, and/or wherein after checking for a time remaining in the transmission as indicated in a PHY Header and established by a NAV, if the block acknowledgement occurs before the predetermined time, the Contention-Free End (CF-END) signal is sent, and/or wherein the CF-END signal alerts the network the medium is available for contention.
25. The non-transitory medium of claim 20 , further comprising determining not to terminate transmission if the updated data rate does not provide an increase throughput.