Processing blind beamforming for multi-user multiple-input multiple-output (MU-MIMO) systems
US11252045B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2021 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Oct 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0654
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless network system includes a base station (BS) having a number of array antennas and a controller. The network system also includes a number of mobile stations (MS) each having its own antenna array. The base station modulates a transmit signal directed to a MS with a transmit beamformer as specified by the controller. The MS equalizes a received signal with a receive beamformer. The controller is configured to calculate an outage probability of the MS based on statistical channel state information at the BS, for a given set of a transmit beamformer wk, a receive beamformer vk, and a predetermined threshold of a signal-to-noise-interference-plus-noise ratio (SINR) at the MS. The controller is also configured to obtain a solution set comprising a transmit beamformer wk and a receive beamformer vk. The controller is further configured to specify, based on the obtained solution set, the beamformers to be adopted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.