Method and apparatus for determining precoding matrix
US8903007B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2013 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03974
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present disclosure disclose a method and an apparatus for determining a precoding matrix, which relate to the field of communications technologies and may improve throughput of a MIMO system and optimize overall system performance, including: determining a rank constraint of a jth transmitting end, where j=1, 2, . . . , K, and K is the total number of transmitting ends in a MIMO system; iteratively calculating an optimal precoding matrix of the jth transmitting end according to a channel matrix from the jth transmitting end to a jth receiving end, an autocorrelation matrix of interference and noise of the jth receiving end, and the rank constraint of the jth transmitting end, where the optimal precoding matrix maximizes channel capacity of a link from the jth transmitting end to the jth receiving end under a circumstance that precoding matrices of other transmitting ends do not change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.