Differential ack processing buffer manager and method therefor
US7212538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2003 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Nov 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1806
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Communication methods, buffer management methods, communication systems, and communication devices for mobile communications using acknowledgement-based protocols, such as TCP. Communication buffer memory includes free and committed memory, with copies of transmitted messages awaiting acknowledgement stored in committed memory of transmit buffer. Memory controller monitors communication buffer state and, if free memory is less than a memory threshold, controller extracts TCP ACKNUM from a received host message. The TCP ACKNUM acknowledges transmitted message copies having ACKNUMs of lesser ordinality, and memory controller identifies and denominates the committed memory storing acknowledged messages as free memory, potentially avoiding deadlock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.