Efficiently collecting and distributing multicast data
US11502991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2020 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Oct 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40228
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A more efficient method of data collecting using multicast instead of individual slave-by-slave requests for data defines a multicast address through a master station. Slave stations are divided into feature groups according to their feature value and a mapping relationship table between the multicast addresses and the feature groups is established. Data request frames from the master station to the slave stations include a destination address which is parsed by all the slave stations, and if the destination address is the same as the multicast address in the mapping relationship table, the slave stations in the feature group associated with the destination address transmit data in response to the master station, the data request being discarded by other slave stations which are not associated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.