Variable coherence adaptive antenna array
US11705946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2022 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Dec 14, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0868
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A user equipment (UE) transmits over multiple antenna ports and receives a control message from a base station in a wireless communication network. The control message comprises a precoding matrix indication field configurable to a first, second, and third configuration. The first configuration identifies precoding matrices in both a first set of precoding matrices and a second set of precoding matrices. The second configuration identifies precoding matrices in the second set of precoding matrices but not in the first set of precoding matrices. The third configuration identifies precoding matrices in a third set of precoding matrices in addition to the first and second sets. The precoding matrices in the sets are precoding matrices for transmissions from the UE. Each set of precoding matrices corresponds to a respective coherence capability. For a maximum of four spatial layers, the first, second, and third configurations occupy 5, 4, and 6 information bits, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.