Method and apparatus for retransmitting packet for low-power wireless sensor communications
US9819466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Apr 9, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of retransmitting a packet for low-power wireless sensor communications of a coordinator in a sensor network is provided. The method includes receiving packets from a plurality of sensor devices during a plurality of guaranteed time slots (GTSs) of a Contention Free Period (CFP) which are allocated to the respective sensor devices; checking whether there is an error in each of the received packets; generating one GTS Bulk ACK frame that contains pieces of ACK information to be transmitted to the respective sensor devices, according to the error check results; and transmitting the generated GTS Bulk ACK frame to the plurality of sensor devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.