Method and apparatus for efficient feedback in a wireless communication system supporting multiple antenna
US9496942B2 · kind B2 · utility
4Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2016 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Apr 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for transmitting channel status information (CSI) via uplink in a wireless communication system includes transmitting a first precoding matrix indicator (PMI) and a second PMI at a subframe. A subsampled codebook for each of a precoding codebook for Rank-1 and a precoding codebook for Rank-2 is determined based on at least the first PMI or the second PMI. In case of the Rank-1 or the Rank-2, a number of elements for the first PMI is 8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.