Supporting high dimensional MU-MIMO beamforming by sounding multiple frames with different sets of antenna patterns
US9124317B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2014 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Apr 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0618
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In some aspects, the disclosure is directed to methods and systems for performing channel estimation between a beamformer and a beamformee. A beamformer can determine that a beamformee is configured to perform channel estimation for up to a pre-configured number of transmit spatial streams from the beamformer. The pre-configured number of transmit spatial streams can be less than a plurality of transmit spatial streams of the beamformer. The beamformer can determine a plurality of subsets of transmit spatial streams from the plurality of transmit spatial streams. The beamformer can send a plurality of sounding frames to the beamformee for channel estimation based at least on the determined plurality of subsets of transmit spatial streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.