Scheduling transmission for multi-user, multiple-input, multiple-output data
US9379794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Apr 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/121
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An access point determines the buffered data for each station of a plurality of stations in a BSS and groups the stations with similar station characteristics. The transmission time to the stations in a group can be apportioned. The groups can be ordered based on station characteristics and a transmission history. A sounding for a group can be performed based on the order. The MU-MIMO transmission for the group can be performed until a first condition is met. If the first condition is met, then the sounding and the MU-MIMO transmission for a next group can be performed, according to the order, until a second condition is met. The first condition can include an apportioned transmission time having expired and/or the buffers for the group being flushed. The second condition can include new data having been buffered by the AP and/or all buffered data having been transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.