ARQ (automatic repeat request) for broadband fixed wireless network
US7000021B1 · kind B1 · utility
43Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jul 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1883
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for retransmitting unsuccessfully transmitted data across a communication link. The retransmission mechanism may be applied to point to multipoint networks including wireless networks. Each packet is encapsulated in an ARQ frame and assigned a sequence number for the purpose of coordinating acknowledgments and retransmissions. Information as to which packets require retransmission is communicated in the form of a bitmap where each bit indicates an acknowledgment status for a given packet. Any missing packets in the received sequence are assumed to require retransmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.