Channel sounding method in wireless communication system and device for same
US10548146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | May 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An uplink (UL) sounding support method of a station (STA) for measuring a an UL channel state in a wireless local area network (WLAN) system, according to one embodiment of the present invention, comprises the steps of: receiving null data packet announcement (NDPA) information indicating an UL transmission of an the NDP frame; receiving trigger information indicating an UL MU transmission resource of the NDP frame; and UL multi-user (MU)-transmitting the NDP frame using the UL MU transmission resource indicated by the trigger information, wherein the trigger information may comprise at least one of spatial resource information or the frequency resource information to be used for the UL MU transmission of the NDP frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.