Codebook-based signal transmission/reception method in multi-antenna wireless communication system, and device for same
US10476575B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2016 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Aug 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0469
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed are a codebook-based signal transmission/reception method in a multi-antenna wireless communication system, and a device for same. Specifically, provided is a method by which a terminal transmits/receives a signal on the basis of a codebook, in a 2-dimensional multi-antenna wireless communication system, comprising the steps of: receiving a channel state information reference signal (CSI-RS) from a base station, via a multi-antenna port; and reporting channel state information to the base station. The channel state information comprises a precoding matrix indicator (PMI) for indicating a precoding matrix. The PMI comprises a first PMI for selecting a precoding matrix set from a codebook, and a second PMI for selecting one precoding matrix from the precoding matrix set. The pair of the first dimensional index and second dimensional index of the precoding matrix belonging to the precoding matrix set is (x, y), (x+2, y), (x, y+1), (x+1, y+1), x and y being whole numbers that are not negative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.