Method and transmitting unit for reducing a risk of transmission stalling
US9025460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Jul 3, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to a method for reducing a risk of transmission stalling between a transmitting unit and a receiving unit, data blocks are transmitted to the receiving unit from the transmitting unit. Each data block includes a block sequence number (BSN). The transmitted data blocks are stored in a transmission buffer. A flow of retransmission of transmitted data blocks is controlled with a transmission buffer window comprising an acknowledge state variable (ASV) that contains the BSN value of the oldest data block that has not been positively acknowledged by its peer. If a BSN corresponding to the ASV is acknowledged in a first type of acknowledgment message, a status of the BSN is set as tentative acknowledged. If the block sequence number is acknowledged in a second type of acknowledgement message, the status of the BSN is set as acknowledged, and the transmission buffer window is advanced to the ASV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.