| 发明名称 | Joint carrier recovery for MIMO systems | ||
| 摘要 | The invention relates to a method for carrier recovery of an equalized communications signal in a multiple-input multiple-output communications system. The method is comprised of the steps generating a phase rotation estimate from the equalized communications signal and a demodulated signal estimate of the equalized communications signal, and adjusting at least one of the phase and frequency of the equalized communications signal based on the phase rotation estimate. The step of generating the phase rotation estimate further comprising using a model based filter with the equalized communications signal as input signal to the model based filter and the demodulated signal estimate as a measurement to the model based filter. | ||
| 申请公布号 | US8982982(B2) | 申请公布日期 | 2015.03.17 |
| 申请号 | US201114116364 | 申请日期 | 2011.06.08 |
| 申请人 | Telefonaktiebolaget L M Ericsson (publ) | 发明人 | Wolfgang Andreas;Bao Lei;Carling David;Catovic Edvin |
| 分类号 | H04B7/02;H04B7/04;H04L27/00 | 主分类号 | H04B7/02 |
| 代理机构 | Coats & Bennett, P.L.L.C. | 代理人 | Coats & Bennett, P.L.L.C. |
| 主权项 | 1. A method for carrier recovery of an equalized communications signal in a multiple-input multiple-output (MIMO) communications system, the method comprising: generating a phase rotation estimate from the equalized communications signal and a demodulated signal estimate of the equalized communications signal; adjusting at least one of the phase and frequency of the equalized communications signal based on the phase rotation estimate; wherein the generating the phase rotation estimate comprises using a first model based filter, with the equalized communications signal as input signal to the first model based filter and the demodulated signal estimate as a measurement to the first model based filter. | ||
| 地址 | Stockholm SE | ||