Fast path for acknowledgement frames in wireless networks
US11075848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2019 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Aug 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments are directed to a fast path for acknowledgement frames in wireless networks. An embodiment of a storage medium includes instructions for operations including receiving frames at a network device via a wireless communication channel, each frame including a sequence number; holding the received frames in a reorder buffer to be reordered according to the sequence numbers of the received frames, wherein a frame is to be removed from the reorder buffer for delivery to a next process upon the sequence number of the frame equaling an expected next sequence number or upon expiration of a reordering timeout period for the frame; and, upon receiving an acknowledgment (ACK) frame, the ACK frame containing no data and having a sequence number that is later than any ACK frame that has been previously processed at the network device bypassing the reorder buffer for the ACK frame, and delivering the ACK frame to the next process, and maintaining an order position for the ACK frame in the reorder buffer until the reordering timeout period expires for the ACK frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.