Systems and methods of communication using tunneled direct link setup (TDLS)
Systems and methods for improved communications using tunneled direct link setup are described herein. The systems and methods relate to discovery, link setup, channel switching, multicasting, link selection, and quality of service implemented in conjunction with tunneled direct link setup.
1. A method implemented in a wireless apparatus, the method comprising:
receiving a discovery request from a wireless station via an access point;
determining a data rate for transmitting a response to the discovery request, wherein the data rate is between a first maximum rate associated with the access point and a second maximum rate supported by the wireless apparatus; and
transmitting the response to the wireless station directly at the determined rate to set up a direct link to the wireless station with priority over setting up a direct link to a second wireless station when the determined rate is greater than a data rate for the second wireless station.
2. The method of claim 1 , further comprising determining another data rate for transmitting a second response to the discovery request that is less than the first data rate and between the first maximum rate and the second maximum rate in response to a failure in transmitting the response to the discovery request.
3. The method of claim 1 , further comprising determining the first maximum rate based on a history of packet error rates corresponding to different data rates exchanged with the access point.
4. The method of claim 1 , further comprising determining a set of rates between the first maximum rate and the second maximum rate at which to transmit the response.
5. The method of claim 1 , wherein the discovery request comprises a tunneled direct link setup discovery request.
6. The method of claim 1 , wherein the discovery request is received over an access point link.
7. The method of claim 1 , wherein the response is transmitted over a direct link.
8. A wireless apparatus comprising:
a memory; and
a processor coupled to the memory, the memory and processor being cooperatively configured to:
receive a discovery request from a wireless station via an access point;
determine a data rate for transmitting a response to the discovery request, wherein the data rate is between a first maximum rate associated with the access point and a second maximum rate supported by the wireless apparatus; and
transmit the response to the wireless station directly at the determined rate to set up a direct link to the wireless station with priority over setting up a direct link to a second wireless station when the determined rate is greater than a data rate for the second wireless station.
9. The wireless apparatus of claim 8 , wherein the memory and processor are further cooperatively configured to determine another data rate for transmitting a second response to the discovery request that is less than the first data rate and between the first maximum rate and the second maximum rate in response to a failure in transmitting the response to the discovery request.
10. The wireless apparatus of claim 8 , wherein the memory and processor are further cooperatively configured to determine the first maximum rate based on a history of packet error rates corresponding to different data rates exchanged with the access point.
11. The wireless apparatus of claim 8 , wherein the memory and processor are further cooperatively configured to determine a set of rates between the first maximum rate and the second maximum rate at which to transmit the response.
12. The wireless apparatus of claim 8 , wherein the discovery request comprises a tunneled direct link setup discovery request.
13. The wireless apparatus of claim 8 , wherein the discovery request is received over an access point link.
14. The wireless apparatus of claim 8 , wherein the response is transmitted over a direct link.
15. A wireless apparatus comprising:
means for receiving a discovery request from a wireless station via an access point;
means for determining a data rate for transmitting a response to the discovery request, wherein the data rate is between a first maximum rate associated with the access point and a second maximum rate supported by the wireless apparatus; and
means for transmitting the response to the wireless station directly at the determined rate to set up a direct link to the wireless station with priority over setting up a direct link to a second wireless station when the determined rate is greater than a data rate for the second wireless station.
16. The wireless apparatus of claim 15 , further comprising means for determining another data rate for transmitting a second response to the discovery request that is less than the first data rate and between the first maximum rate and the second maximum rate in response to a failure in transmitting the response to the discovery request.
17. The wireless apparatus of claim 15 , further comprising means for determining the first maximum rate based on a history of packet error rates corresponding to different data rates exchanged with the access point.
18. The wireless apparatus of claim 15 , further comprising means for determining a set of rates between the first maximum rate and the second maximum rate at which to transmit the response.
19. The wireless apparatus of claim 15 , wherein the discovery request comprises a tunneled direct link setup discovery request.
20. The wireless apparatus of claim 15 , wherein the discovery request is received over an access point link.
21. The wireless apparatus of claim 15 , wherein the response is transmitted over a direct link.
22. A non-transitory computer readable medium comprising instructions that when executed cause an apparatus to:
receive a discovery request from a wireless station via an access point;
determine a data rate for transmitting a response to the discovery request, wherein the data rate is between a first maximum rate associated with the access point and a second maximum rate supported by the wireless apparatus; and
transmit the response to the wireless station directly at the determined rate to set up a direct link to the wireless station with priority over setting up a direct link to a second wireless station when the determined rate is greater than a data rate for the second wireless station.
23. The computer readable medium of claim 22 , wherein the instructions when executed further cause the apparatus to determine another data rate for transmitting a second response to the discovery request that is less than the first data rate and between the first maximum rate and the second maximum rate in response to a failure in transmitting the response to the discovery request.
24. The computer readable medium of claim 22 , wherein the instructions when executed further cause the apparatus to determine the first maximum rate based on a history of packet error rates corresponding to different data rates exchanged with the access point.
25. The computer readable medium of claim 22 , wherein the instructions when executed further cause the apparatus to determine a set of rates between the first maximum rate and the second maximum rate at which to transmit the response.
26. The computer readable medium of claim 22 , wherein the discovery request comprises a tunneled direct link setup discovery request.
27. The computer readable medium of claim 22 , wherein the discovery request is received over an access point link.
28. The computer readable medium of claim 22 , wherein the response is transmitted over a direct link.