EXTREMELY HIGH THROUGHPUT HYBRID AUTOMATIC REPEAT REQUEST

• US 20200137827A1
• Filed: 12/27/2019
• Published: 04/30/2020
• Est. Priority Date: 12/28/2018
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Cariou, Laurent, Chen, Xiaogang, Huang, Po-Kai, Perez-Ramirez, Javier, Azizi, Shahrnaz, Balakrishnan, Ravikumar, Bravo, Daniel, Jiang, Feng, Kenney, Thomas J., Li, Qinghua, Stacey, Robert
• Granted Patent: US 11,438,104 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/1614 using bitmaps
• CPC Class Codes: H04L 1/1621 Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04W 80/02 Data link layer protocols
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

This disclosure describes systems, methods, and devices related to extremely high throughput (EHT) multiuser hybrid automatic repeat request (HARQ). A device may determine one or more medium access control (MAC) protocol data unit (MPDUs) to be sent to a first station device of one or more station devices, wherein the one or more MAC protocol data units (MPDUs) comprise a first MPDU. The device may segment the first MPDU into a plurality of segments, wherein the one or more segments include a first segment and a second segment. The device may cause to send the plurality of segments to the first station device. The device may identify a feedback frame received from the first station device, wherein the feedback frame comprises error information associated with the plurality of segments. The device may cause to retransmit at least one of the plurality of segments based on the error information.

Claims

1. A device, the device comprising processing circuitry coupled to storage, the processing circuitry configured to:

determine one or more medium access control (MAC) protocol data unit (MPDUs) to be sent to a first station device of one or more station devices, wherein the one or more MAC protocol data units (MPDUs) comprise a first MPDU;

segment the first MPDU into a plurality of segments, wherein the one or more segments include a first segment and a second segment;

cause to send the plurality of segments to the first station device;

identify a feedback frame received from the first station device, wherein the feedback frame comprises error information associated with the plurality of segments; and

cause to retransmit at least one of the plurality of segments based on the error information.

2. The device of claim 1, wherein the processing circuitry is further configured to cause to send an indication associated with the hybrid automatic repeat request (HARQ), wherein the indication indicates to the first station device that a transmission of the plurality of segments is for HARQ and indicates to the first station device whether to store a failed segment of the plurality of segments.

3. The device of claim 1, wherein the feedback frame indicates that at least one of the plurality of segments has failed at the first station.

4. The device of claim 1, wherein the feedback frame is an hybrid automatic repeat request (HARQ) block acknowledgment frame.

5. The device of claim 1, wherein the error information comprises a retransmit bid that is set to 0 or 1 based on whether retransmission is needed.

6. The device of claim 1, wherein the processing circuitry is further configured to determine the retransmission bit is set to 1 indicating a retransmission of the at least one of the plurality of segments is needed.

7. The device of claim 1, wherein the processing circuitry is further configured to identify a hybrid automatic repeat request (HARQ) segment bitmap included in the feedback frame.

8. The device of claim 1, wherein the processing circuitry is further configured to determine the first segment needs retransmission based on a corresponding bit in the bitmap being set to 1.

9. The device of claim 1, wherein the processing circuitry is further configured to determine the second segment does not retransmission based on a corresponding bit in the bitmap being set to 0.

10. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:

determining one or more medium access control (MAC) protocol data unit (MPDUs) to be sent to a first station device of one or more station devices, wherein the one or more MAC protocol data units (MPDUs) comprise a first MPDU;

segmenting the first MPDU into a plurality of segments, wherein the one or more segments include a first segment and a second segment;

causing to send the plurality of segments to the first station device;

identifying a feedback frame received from the first station device, wherein the feedback frame comprises error information associated with the plurality of segments; and

causing to retransmit at least one of the plurality of segments based on the error information.

11. The non-transitory computer-readable medium of claim 10, wherein the operations further comprise causing to send an indication associated with the hybrid automatic repeat request (HARQ), wherein the indication indicates to the first station device that a transmission of the plurality of segments is for HARQ and indicates to the first station device whether to store a failed segment of the plurality of segments.

12. The non-transitory computer-readable medium of claim 10, wherein the feedback frame indicates that at least one of the plurality of segments has failed at the first station.

13. The non-transitory computer-readable medium of claim 10, wherein the feedback frame is an hybrid automatic repeat request (HARQ) block acknowledgment frame.

14. The non-transitory computer-readable medium of claim 10, wherein the error information comprises a retransmit bid that is set to 0 or 1 based on whether retransmission is needed.

15. The non-transitory computer-readable medium of claim 10, wherein the operations further comprise determining the retransmission bit is set to 1 indicating a retransmission of the at least one of the plurality of segments is needed.

16. The non-transitory computer-readable medium of claim 10, wherein the operations further comprise identifying a hybrid automatic repeat request (HARQ) segment bitmap included in the feedback frame.

17. The non-transitory computer-readable medium of claim 10, wherein the operations further comprise determining the first segment needs retransmission based on a corresponding bit in the bitmap being set to 1.

18. The non-transitory computer-readable medium of claim 10, wherein the operations further comprise determining the second segment does not retransmission based on a corresponding bit in the bitmap being set to 0.

19. A method comprising:

determining, by one or more processors, one or more medium access control (MAC) protocol data unit (MPDUs) to be sent to a first station device of one or more station devices, wherein the one or more MAC protocol data units (MPDUs) comprise a first MPDU;

segmenting the first MPDU into a plurality of segments, wherein the one or more segments include a first segment and a second segment;

causing to send the plurality of segments to the first station device;

identifying a feedback frame received from the first station device, wherein the feedback frame comprises error information associated with the plurality of segments; and

causing to retransmit at least one of the plurality of segments based on the error information.

20. The method of claim 19, further comprising causing to send an indication associated with the hybrid automatic repeat request (HARQ), wherein the indication indicates to the first station device that a transmission of the plurality of segments is for HARQ and indicates to the first station device whether to store a failed segment of the plurality of segments.