| 发明名称 | Method and arrangement for adapting a multi-antenna transmission | ||
| 摘要 | A method in a first node for adapting a multi-antenna transmission to a second node over a wireless channel is provided. The wireless channel has at least three inputs and at least one output. The first node and the second node are comprised in a wireless communication system. The method includes obtaining at least one symbol stream, determining a precoding matrix having a product structure created by a block diagonal matrix being multiplied from the left with a block diagonalizing unitary matrix, precoding the at least one symbol stream with the determined precoding matrix, and transmitting the precoded at least one symbol stream over a wireless channel to the second node. | ||
| 申请公布号 | US9419695(B2) | 申请公布日期 | 2016.08.16 |
| 申请号 | US201514791568 | 申请日期 | 2015.07.06 |
| 申请人 | Telefonaktiebolaget LM Ericsson (publ) | 发明人 | Jöngren George |
| 分类号 | H04B7/04;H04B7/06;H04L25/03;H04B7/10 | 主分类号 | H04B7/04 |
| 代理机构 | Coats & Bennett, PLLC | 代理人 | Coats & Bennett, PLLC |
| 主权项 | 1. A method in a first node for adapting a multi-antenna transmission to a second node over a wireless channel, the method comprising: obtaining at least one symbol stream; determining a precoding matrix having a product structure, wherein the product structure is decomposable into a block diagonal matrix being multiplied from the left with a block diagonalizing unitary matrix; precoding the at least one symbol stream with the determined precoding matrix; and transmitting the precoded at least one symbol stream over a wireless channel having at least three inputs and at least one output to the second node. | ||
| 地址 | Stockholm SE | ||