Apparatus and method for full-dimensional MIMO with one-dimensional CSI feedback
US10181888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2014 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0481
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and corresponding apparatuses for wireless communication are disclosed. The method for wireless communication includes dividing a two-dimensional antenna array to a plurality of sub-arrays, mapping the two-dimensional antenna array into a one-dimensional vertical channel state information reference signal (CSI-RS) port array for receiving elevation CSI feedback and a one-dimensional horizontal CSI-RS port array for receiving azimuth CSI feedback, and transmitting one or more elevation CSI-RS from the one-dimensional vertical CSI-RS port array and one or more azimuth CSI-RS from the one-dimensional horizontal CSI-RS port array. Methods and corresponding apparatuses for CSI feedback mechanism are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.