Spatial reuse training for channel access schemes
This disclosure describes methods, apparatuses, and systems related to network allocation vectors. A device is disclosed that may determine a first length of time corresponding to a first spatial reuse transmit opportunity (SR-TxOP) time period. The device may determine a second length of time corresponding to a transmit opportunity (TxOP) time period that starts when a request to send (RTS) frame is transmitted and ends after the first length of time ends. The device may cause to transmit the RTS frame, over the channel, to a first device. The device may determine that a clear to send (CTS) frame is received from the first device, the CTS frame comprising a first duration field equal to having a third length of time corresponding to a second transmission opportunity (SR-TxOP). The device may determine that the third length of time corresponds to a length of time between when the CTS frame was transmitted and when the first length of time ends. The device may determine that the third length of time is less than the second length of time. The device may cause to transmit a CTS to self frame, over the channel, comprising a second duration field equal to having a fourth length of time, wherein the fourth length of time corresponds to a length of time between when the CTS to self frame is transmitted and when the first length of time ends.
1. A device, the device comprising:
memory and processing circuitry configured to:
determine a first length of time corresponding to a first spatial reuse transmit opportunity (SR-TxOP) time period;
determine a second length of time corresponding to a transmit opportunity (TxOP) time period that starts when a request to send (RTS) frame is transmitted and ends after the first length of time ends;
cause to transmit the RTS frame, over a channel, to a first device;
determine that a clear to send (CTS) frame is received from the first device, the CTS frame comprising a first duration field having a third length of time corresponding to a second (SR-TxOP);
determine that the third length of time corresponds to a length of time between when the CTS frame was transmitted and when the first length of time ends;
determine that the third length of time is less than the second length of time;
cause to transmit a CTS to self frame, over the channel, comprising a second duration field having a fourth length of time, wherein the fourth length of time corresponds to a length of time between when the CTS to self frame is transmitted and when the first length of time ends.
2. The device of claim 1 , wherein the processing circuitry is further configured to:
transmit at least one data frame during the first SR-TxOP time period.
3. The wireless device of claim 1 , wherein the processing circuitry is further configured to:
cause to transmit the CTS to self frame a first short inter-frame space (SIFS) period after the CTS frame is received.
4. The wireless device of claim 1 , wherein a timestamp of the CTS frame corresponds to a second time that is a second SIFS period after the RTS frame is transmitted.
5. The wireless device of claim 1 , wherein the processing circuitry is further configured to:
determine a clear channel assessment (CCA) based at least in part on sensing a carrier signal associated with the CTS frame, or detecting energy associated with the carrier signal of the CTS frame.
6. The wireless device of claim 1 , wherein the processing circuitry is further configured to:
cause to transmit at least one data frame to the first device after the first SR-TxOP time period ends.
7. The wireless device of claim 6 , wherein the processing circuitry is further configured to:
determine a number of data frames to be sent to the second device, and wherein the second length of time is based at least in part the number of data frames.
8. The wireless device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals.
9. The wireless device of claim 8 , further comprising an antenna coupled to the transceiver.
10. A non-transitory computer-readable medium storing computer-executable instructions which, when executed by a processor, cause the processor to perform operations comprising:
determining a first length of time corresponding to a first spatial reuse transmit opportunity (SR-TxOP) time period;
determining a second length of time corresponding to a transmit opportunity (TxOP) time period that starts when a request to send (RTS) frame is transmitted and ends after the first length of time ends;
causing to transmit the RTS frame, over a channel, to a first device;
determining that a clear to send (CTS) frame is received from the first device, the CTS frame comprising a first duration field having a third length of time corresponding to a second (SR-TxOP);
determining that the third length of time corresponds to a length of time between when the CTS frame was transmitted and when the first length of time ends;
determining that the third length of time is less than the second length of time;
causing to transmit a CTS to self frame, over the channel, comprising a second duration field having a fourth length of time, wherein the fourth length of time correspond to a length of time between when the CTS to self frame is transmitted and when the first length of time ends.
11. The non-transitory computer-readable medium of claim 10 , wherein the computer-executable instructions cause the processor to perform operations further comprising:
transmitting at least one data frame during the first SR-TxOP time period.
12. The non-transitory computer-readable medium of claim 10 , wherein the computer-executable instructions cause the processor to perform operations further comprising:
transmitting the CTS to self frame a first short inter-frame space (SIFS) period after the CTS frame is received.
13. The non-transitory computer-readable medium of claim 10 , wherein a timestamp of the CTS frame corresponds to a second time that is a second SIFS period after the RTS frame is transmitted.
14. The non-transitory computer-readable medium of claim 10 , wherein the computer-executable instructions cause the processor to perform operations further comprising:
determining a clear channel assessment (CCA) based at least in part on sensing a carrier signal associated with the CTS frame, or detecting energy associated with the carrier signal of the CTS frame.
15. The non-transitory computer-readable medium of claim 14 , wherein the computer-executable instructions cause the processor to perform operations further comprising:
transmitting at least one data frame to the first device after the first SR-TxOP time period ends.
16. The non-transitory computer-readable medium of claim 10 , wherein the computer-executable instructions cause the processor to perform operations further comprising:
determining a number of data frames to be sent to the second device, and wherein the second length of time is based at least in part the number of data frames.
17. A method comprising:
determining a first length of time corresponding to a first spatial reuse transmit opportunity (SR-TxOP) time period;
determining a second length of time corresponding to a transmit opportunity (TxOP) time period that starts when a request to send (RTS) frame is transmitted and ends after the first length of time ends;
causing to transmit the RTS frame, over a channel, to a first device;
determining that a clear to send (CTS) frame is received from the first device, the CTS frame comprising a first duration field having a third length of time corresponding to a second (SR-TxOP);
determining that the third length of time corresponds to a length of time between when the CTS frame was transmitted and when the first length of time ends;
determining that the third length of time is less than the second length of time;
causing to transmit a CTS to self frame, over the channel, comprising a second duration field having a fourth length of time, wherein the fourth length of time correspond to a length of time between when the CTS to self frame is transmitted and when the first length of time ends.
18. The method of claim 17 , further comprising:
transmitting at least one data frame during the first SR-TxOP time period.
19. The method of claim 17 , further comprising:
transmitting the CTS to self frame a first short inter-frame space (SIFS) period after the CTS frame is received.
20. The method of claim 17 , wherein a timestamp of the CTS frame corresponds to a second time that is a second SIFS period after the RTS frame is transmitted.