| 发明名称 | Method to improve active antenna system performance in the presence of mutual coupling | ||
| 摘要 | A method in a network node comprises receiving a first input signal from a baseband processing unit of a first antenna branch, receiving a second input signal from a baseband processing unit of a second antenna branch, determining a first and second compensation coefficient, applying the first compensation coefficient to the second input signal to generate a first output signal, applying the second compensation coefficient to the first input signal to generate a second output signal, outputting the first output signal to a first power amplifier of the first antenna branch, the first output signal compensating for a mutual coupling from the second antenna branch to the first antenna branch, and outputting the second output signal to a second power amplifier of the second antenna branch, the second output signal compensating for a mutual coupling from the first antenna branch to the second antenna branch. | ||
| 申请公布号 | US9590664(B2) | 申请公布日期 | 2017.03.07 |
| 申请号 | US201514623034 | 申请日期 | 2015.02.16 |
| 申请人 | Telefonaktiebolaget LM Ericsson (publ) | 发明人 | Rexberg Leonard;Nammi Sairamesh |
| 分类号 | H04B1/04;H04B17/10;H04B17/11;H03F1/32;H03F3/24 | 主分类号 | H04B1/04 |
| 代理机构 | Baker Botts, LLP | 代理人 | Baker Botts, LLP |
| 主权项 | 1. A method in a network node, comprising: receiving a first input signal from a first antenna branch baseband processing unit of a first antenna branch of the network node; receiving a second input signal from a second antenna branch baseband processing unit of a second antenna branch of the network node; determining a first compensation coefficient; determining a second compensation coefficient; applying, using a mutual coupling processor, the first compensation coefficient to the second input signal received from the second antenna branch baseband processing unit to generate a first output signal; applying, using the mutual coupling processor, the second compensation coefficient to the first input signal received from the first antenna branch baseband processing unit to generate a second output signal; outputting the first output signal to a first power amplifier of the first antenna branch, the first output signal compensating for a mutual coupling from the second antenna branch to the first antenna branch, the first power amplifier operating in a non-linear region; and outputting the second output signal to a second power amplifier of the second antenna branch, the second output signal compensating for a mutual coupling from the first antenna branch to the second antenna branch, the second power amplifier operating in the non-linear region. | ||
| 地址 | Stockholm SE | ||