Medium-based transmission parameter adaptation

1. A method comprising:

obtaining default transmitting parameters and potential variations of the default transmitting parameters for a packet to be transmitted over a wireless network;

obtaining medium state information for a medium of the wireless network;

generating a first candidate of transmitting parameters and a second candidate of transmitting parameters based on the medium state information, each of the first and second candidates of transmitting parameters consistent with at least one of the default transmitting parameters and the potential variations of the default transmitting parameters; and

selecting from among the first and the second candidates of transmitting parameters to use when transmitting the packet over the wireless network.

2. The method of claim 1 , further comprising:

after transmitting the packet over the wireless network, recording whether or not the packet was successfully delivered using the first candidate of transmitting parameters;

obtaining second default transmitting parameters and potential variations of the second default transmitting parameters for a second packet to be transmitted over the wireless network;

obtaining updated medium state information of the wireless network;

generating a third candidate of transmitting parameters and a fourth candidate of transmitting parameters based on the medium state information, each of the third and fourth candidates of transmitting parameters consistent with at least one of the second default transmitting parameters and the potential variations of the second default transmitting parameters;

ordering the third and fourth candidates of transmitting parameters based on historical success rates of packet delivery over the wireless network; and

selecting from among the third and the fourth candidates of transmitting parameters to use when transmitting the second packet over the wireless network based at least on the recording of whether or not the packet was successfully delivered using the first candidate of transmitting parameters.

3. The method of claim 1 , wherein the each candidate set of transmission parameters includes a frequency bandwidth of transmission, use of one or more punctured sub bands in the bandwidth, a transmission power, a packet modulation and coding scheme (MCS) level, a request-to-send or clear-to-send (RTS-CTS) setting, and a packet length.

4. The method of claim 1 , further comprising sending sampling packets, when no packets are queued for transmission, using various transmitting parameters to acquire additional data to record of whether or not the sampling packets were successfully delivered using the various transmitting parameters.

5. The method of claim 4 , wherein at least one of the various transmitting parameters include a set of transmitting parameters with a higher potential throughput but a higher risk of failure of delivery than the default transmitting parameters.

6. The method of claim 1 , wherein obtaining medium state information comprises obtaining current state information of the medium by operations comprising:

obtaining clear channel assessment-carrier sense (CCA-CS) information by analyzing a preamble of a Wi-Fi packet that is utilizing the medium and that is received at a power above a first threshold level, the preamble permitting determination of a duration for which the medium is occupied; and

obtaining clear channel assessment-energy detect (CCA-ED) information of energy detected at a power above a second threshold level.

7. The method of claim 6 , wherein obtaining the current state information of the medium further comprises:

determining whether an observed packet is an inter-basic service set (inter-BSS) packet or an intra-BSS packet; and

determining whether the observed packet includes an acknowledgment (ACK), block acknowledgment (BA), or clear to send (CTS) frame;

wherein the first candidate includes parameters for a spatial reuse transmission with a backed-off transmission power and in a same bandwidth as the observed packet based on the observed packet being an inter-BSS packet and not including the ACK, BA or CTS frame.

8. The method of claim 1 , wherein obtaining medium state information comprises obtaining future state information of the medium by determining network allocation vector (NAV) information for sub-bands of the medium.

9. One or more non-transitory computer-readable media containing instructions which, in response to being executed by a processor, cause a system to perform operations comprising:

obtaining default transmitting parameters and potential variations of the default transmitting parameters for a packet to be transmitted over a wireless network;

obtaining medium state information for a medium of the wireless network;

generating a first candidate of transmitting parameters and a second candidate of transmitting parameters based on the medium state information, each of the first and second candidates of transmitting parameters consistent with at least one of the default transmitting parameters and the potential variations of the default transmitting parameters; and

selecting from among the first and the second candidates of transmitting parameters to use when transmitting the packet over the wireless network.

10. The non-transitory computer-readable media of claim 9 , wherein the operations further comprise:

after transmitting the packet over the wireless network, recording whether or not the packet was successfully delivered using the first candidate of transmitting parameters;

obtaining second default transmitting parameters and potential variations of the second default transmitting parameters for a second packet to be transmitted over the wireless network;

obtaining updated medium state information of the wireless network;

generating a third candidate of transmitting parameters and a fourth candidate of transmitting parameters based on the medium state information, each of the third and fourth candidates of transmitting parameters consistent with at least one of the second default transmitting parameters and the potential variations of the second default transmitting parameters;

ordering the third and fourth candidates of transmitting parameters based on historical success rates of packet delivery over the wireless network; and

selecting from among the third and the fourth candidates of transmitting parameters to use when transmitting the second packet over the wireless network based at least on the recording of whether or not the packet was successfully delivered using the first candidate of transmitting parameters.

11. The non-transitory computer-readable media of claim 9 , wherein the first candidate includes a frequency bandwidth of transmission, a transmission power, a packet modulation and coding scheme (MCS) level, and a packet length.

12. The non-transitory computer-readable media of claim 9 , the operations further comprising sending sampling packets, when no packets are queued for transmission, using various transmitting parameters to acquire additional data to record of whether or not the sampling packets were successfully delivered using the various transmitting parameters.

13. The non-transitory computer-readable media of claim 12 , wherein at least one of the various transmitting parameters include a set of transmitting parameters with a higher potential throughput but a higher risk of failure of delivery than the default transmitting parameters.

14. The non-transitory computer-readable media of claim 9 , wherein obtaining medium state information comprises obtaining current state information of the medium by operations comprising:

obtaining clear channel assessment-carrier sense (CCA-CS) information by analyzing a preamble of a Wi-Fi packet that is utilizing the medium and that is received at a power above a first threshold level, the preamble permitting determination of a duration for which the medium is occupied; and

obtaining clear channel assessment-energy detect (CCA-ED) information of energy detected at a power above a second threshold level.

15. The non-transitory computer-readable media of claim 14 , wherein obtaining the current state information of the medium further comprises:

determining whether an observed packet is an inter-basic service set (inter-BSS) packet or an intra-BSS packet; and

determining whether the observed packet includes an acknowledgment (ACK), block acknowledgment (BA), or clear to send (CTS) frame;

wherein the first candidate includes parameters for a spatial reuse transmission with a backed-off transmission power and in a same bandwidth as the observed packet based on the observed packet being an inter-BSS packet and not including the ACK, BA or CTS frame.

16. The non-transitory computer-readable media of claim 9 , wherein obtaining medium state information comprises obtaining future state information of the medium by determining network allocation vector (NAV) information for sub-bands of the medium.

17. A system comprising:

one or more processors; and

one or more non-transitory computer-readable media containing instructions which, in response to being executed by the one or more processors, cause the system to perform operations comprising:

obtaining default transmitting parameters and potential variations of the default transmitting parameters for a packet to be transmitted over a wireless network;

obtaining medium state information for a medium of the wireless network;

generating a first candidate of transmitting parameters and a second candidate of transmitting parameters based on the medium state information, each of the first and second candidates of transmitting parameters consistent with at least one of the default transmitting parameters and the potential variations of the default transmitting parameters;

ordering the third and fourth candidates of transmitting parameters based on historical success rates of packet delivery over the wireless network; and

selecting from among the first and the second candidates of transmitting parameters to use when transmitting the packet over the wireless network.

18. The system of claim 17 , wherein the operations further comprise:

after transmitting the packet over the wireless network, recording whether or not the packet was successfully delivered using the first candidate of transmitting parameters;

obtaining second default transmitting parameters and potential variations of the second default transmitting parameters for a second packet to be transmitted over the wireless network;

obtaining updated medium state information of the wireless network; and

generating a third candidate of transmitting parameters and a fourth candidate of transmitting parameters based on the medium state information, each of the third and fourth candidates of transmitting parameters consistent with at least one of the second default transmitting parameters and the potential variations of the second default transmitting parameters; and

selecting from among the third and the fourth candidates of transmitting parameters to use when transmitting the second packet over the wireless network based at least on the recording of whether or not the packet was successfully delivered using the first candidate of transmitting parameters.

19. The system of claim 17 , the operations further comprising sending sampling packets, when no packets are queued for transmission, using various transmitting parameters to acquire additional data to record of whether or not the sampling packets were successfully delivered using the various transmitting parameters.

20. The system of claim 17 , wherein obtaining medium state information comprises:

obtaining current state information of the medium by operations comprising:

obtaining clear channel assessment-carrier sense (CCA-CS) information by analyzing a preamble of a Wi-Fi packet that is utilizing the medium and that is received at a power above a first threshold level, the preamble permitting determination of a duration for which the medium is occupied; and

obtaining clear channel assessment-energy detect (CCA-ED) information of energy detected at a power above a second threshold level;

determining whether an observed packet is an inter-basic service set (inter-BSS) packet or an intra-BSS packet; and

determining whether the observed packet includes an acknowledgment (ACK), block acknowledgment (BA), or clear to send (CTS) frame; and

obtaining future state information of the medium by determining network allocation vector (NAV) information for sub-bands of the medium;

wherein the first candidate includes parameters for a spatial reuse transmission with a backed-off transmission power and in a same bandwidth as the observed packet based on the observed packet being an inter-BSS packet and not including the ACK, BA or CTS frame.