Scheduling extension for sharing transmission opportunities

Abstract

This disclosure provides methods, components, devices, and systems for Transmit Opportunity (TXOP) Sharing (TXS) extensions. In some cases, a first wireless node may transmit a first frame configured to allow a third wireless node to transmit to the second wireless node during a Transmit Opportunity (TXOP) shared with a second wireless node, and to prevent transmission from a fourth wireless node during the shared TXOP.

Claims

1. A device for wireless communication at a first wireless node, At least one processor, The memory coupled to the aforementioned processor, The device comprises instructions stored in the memory and executable by the at least one processor, wherein the instructions are executed by the device. The first frame, During a shared transmission opportunity (TXOP) with the second wireless node, the third wireless node is permitted to transmit to the second wireless node. During the shared TXOP, a first frame is output for transmission, configured to prevent transmission from the fourth wireless node. A device that causes one or more actions to be performed during the shared TXOP.

2. The first frame described above, A first type of first transmission blackout period (NAV) which allows the third wireless node to transmit to the second wireless node during the shared TXOP, or setting the first NAV during the shared TXOP, or The apparatus according to claim 1, comprising at least one second NAV of a second type for the fourth wireless node, configured to configure the second NAV to prevent transmission from the fourth wireless node during the shared TXOP.

3. The apparatus according to claim 1, wherein the first frame includes scheduling information for at least the second wireless node.

4. The aforementioned scheduling information, At least when the second wireless node is permitted to transmit, The apparatus according to claim 3, which indicates at least one of the times when the second wireless node will postpone channel access.

5. The apparatus according to claim 3, wherein the scheduling information indicates when the fourth wireless node will postpone its channel access.

6. The apparatus according to claim 3, wherein the scheduling information indicates the total duration of the shared TXOP.

7. The apparatus according to claim 3, wherein the scheduling information indicates, for each of the one or more wireless nodes, including at least the second wireless node, the minimum duration for which the first wireless node intends to share the TXOP with that wireless node.

8. The apparatus according to claim 1, wherein the first frame is also configured to trigger the shared TXOP.

9. The apparatus according to claim 1, wherein the instruction stored in the memory and executable by the at least one processor further causes the apparatus to output for transmission a second frame configured to trigger the shared TXOP.

10. The apparatus according to claim 9, wherein the first frame is output for transmission before the second frame.

11. The apparatus according to claim 1, wherein the first frame includes a transmittable (CTS) frame.

12. The apparatus according to claim 1, wherein the instruction stored in the memory and executable by the at least one processor further causes the apparatus to determine whether the first frame was successfully received by the second wireless node, and one or more actions depend on the determination.

13. The instruction stored in the memory and executable by the at least one processor is further transmitted to the device. The apparatus according to claim 12, wherein a response frame is obtained from the second wireless node, and the determination that the first frame was successfully received by the second wireless node is based on the response frame.

14. If the determination indicates that the first frame was not successfully received by the second wireless node, the apparatus according to claim 13, wherein the one or more actions include outputting for transmission a third frame, at least one of which is configured to reset a first transmission blackout period (NAV) set by the first frame, reset a second NAV set by the first frame, or transmit data to another wireless node.

15. The apparatus according to claim 1, wherein the first frame has a first address set to an address associated with the second wireless node.

16. The apparatus according to claim 15, wherein the first address includes a receiving address (RA).

17. The apparatus according to claim 16, wherein the RA is set to an address associated with the group to which the second wireless node belongs.

18. The instruction stored in the memory and executable by the at least one processor is further transmitted to the device. Output for transmission at least one indication of the address associated with the group, or one or more identifiers of one or more wireless nodes belonging to the group, The apparatus according to claim 17, which causes at least one of the following to be performed: obtain a frame that requests an address to be used to set an RA, wherein at least one of the RAs in the first frame or the second frame is set to the requested address.

19. The aforementioned one or more actions, Obtaining at least a third frame from the second wireless node indicating the early termination of the shared TXOP, or The apparatus according to claim 1, comprising outputting for transmission at least one third frame configured to release or return at least a portion of the shared TXOP.

20. The apparatus according to claim 19, wherein the header of the third frame includes an indication of the release or the return.

21. The frame mentioned above (frame 1) is further, To prevent communication between the second wireless node and the third wireless node during the shared TXOP portion, The apparatus according to claim 1, wherein at least one is configured to allow communication between the second wireless node and the third wireless node between other parts of the shared TXOP.

22. The apparatus according to claim 1, further comprising at least one transceiver configured to transmit the first frame, wherein the apparatus is configured as an access point (AP).

23. A device for wireless communication at a second wireless node, At least one processor, The memory coupled to the aforementioned processor, The device comprises instructions stored in the memory and executable by the processor, wherein the instructions are executed by the device. The first frame, During a Transmit Opportunity (TXOP) shared between the first wireless node and the second wireless node, the third wireless node is permitted to transmit to the second wireless node. During the shared TXOP, a first frame is acquired, which is configured to prevent transmission from the fourth wireless node. A device that causes one or more actions to be performed during the shared TXOP.

24. The first frame described above, At least when the second wireless node is permitted to transmit, The apparatus according to claim 23, comprising scheduling information for at least the second wireless node, indicating at least one of when the second wireless node will postpone channel access.

25. The apparatus according to claim 23, wherein the instruction stored in the memory and executable by the at least one processor further causes the apparatus to acquire a second frame configured to trigger the shared TXOP.

26. The first frame described above, Includes Transmittable (CTS) frames, or The apparatus according to claim 23, comprising at least one having a first address set to an address associated with the second wireless node.

27. The apparatus according to claim 26, wherein the first address includes a receiving address (RA) which is set to an address associated with the group to which the second wireless node belongs.

28. The aforementioned one or more actions, The second wireless node outputs at least a second frame indicating the early termination of the shared TXOP, or The apparatus according to claim 23, comprising obtaining at least one third frame configured to release or return at least a portion of the shared TXOP.

29. The apparatus according to claim 23, further comprising at least one transceiver configured to receive the first frame, wherein the apparatus is configured as a wireless station.

30. A method for wireless communication at a first wireless node, The first frame, During a shared transmission opportunity (TXOP) with the second wireless node, the third wireless node is permitted to transmit to the second wireless node. During the shared TXOP, a first frame is output for transmission, configured to prevent transmission from the fourth wireless node. A method comprising performing one or more actions during the shared TXOP.

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