Processing multiuser multiple-input multiple-output communications having unavailable spatial streams
US11632273B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2021 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Dec 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0003
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This disclosure provides methods, devices and systems for determining unavailable spatial streams in uplink multiuser (MU) multiple-in multiple-out (MIMO) communication. In one example, a device transmits, to wireless stations including a first wireless station, a trigger frame configured to elicit a joint transmission, to the device, of a MU packet over spatial streams respectively associated with the wireless stations. The device receives the MU packet over the spatial streams, where each spatial stream of the spatial streams is received by receive chains of the device. The device performs a channel estimation associated with each spatial stream of the spatial streams using each receive chain of the receive chains. The device determines that at least one spatial stream associated with the first wireless station is unavailable based on the channel estimation. The device processes the MU packet from the plurality of spatial streams without the at least one spatial stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.