| 发明名称 | Method and apparatus for predicting precoding matrix in MIMO system | ||
| 摘要 | A method for predicting precoding matrix (PM) in a MIMO System includes the steps of: obtaining a present PM based on a present transmission; fitting the present PM and previous PMs with a predefined model; and determining a forthcoming PM which is expected to be used in the next transmission based on the fitting. | ||
| 申请公布号 | US9356668(B2) | 申请公布日期 | 2016.05.31 |
| 申请号 | US201113996376 | 申请日期 | 2011.02.28 |
| 申请人 | NEC (CHINA) CO., LTD. | 发明人 | Zhang Yu;Zhu Dalin;Sun Zhennian;Lei Ming |
| 分类号 | H04B7/02;H04B7/04 | 主分类号 | H04B7/02 |
| 代理机构 | Tutunjian & Bitetto, P.C. | 代理人 | Tutunjian & Bitetto, P.C. |
| 主权项 | 1. A method for predicting precoding matrix (PM) in a MIMO System, comprising: obtaining a present PM based on a present transmission; fitting the present PM and previous PMs with a predefined model; and determining a forthcoming PM which is expected to be used in the next transmission based on the fitting, wherein determining the forthcoming PM which is expected to be used in the next transmission based on the fitting comprises: determining a step size based on the fitting;extrapolating on the fitting result with the step size, based on the predefined model; andobtaining the forthcoming PM based on the extrapolation, and wherein determining the step size based on the fitting comprises: defining a plurality of PMs by using different step sizes based on the fitting;calculating an error metric between each of the plurality of PMs and a set of the previous PMs; anddetermining a step size corresponding to the maximum error metric. | ||
| 地址 | Beijing CN | ||