| 发明名称 | Method and receiver in a wireless communication system | ||
| 摘要 | Receiver and method in a receiver, for estimating a normalised frequency offset between a transmitter and the receiver in a wireless communication system, based on Orthogonal Frequency Division Multiplexing, OFDM. The method comprises receiving a first pilot signal (yr1) and a second pilot signal (yr2) from the transmitter; computing a Karhunen-Loeve approximation λK(φ), up to any finite order K of a log-likelihood function λ(φ), based on the received pilot signals (yr1, yr2); and estimating the frequency offset by calculating a maximum value of the computed Karhunen-Loeve approximation λK(φ). | ||
| 申请公布号 | US9083597(B1) | 申请公布日期 | 2015.07.14 |
| 申请号 | US201414553845 | 申请日期 | 2014.11.25 |
| 申请人 | Huawei Technologies Co., Ltd. | 发明人 | Rusek Fredrik;Priyanto Basuki Endah |
| 分类号 | H04L27/06;H04L27/26;H04L27/16 | 主分类号 | H04L27/06 |
| 代理机构 | Leydig, Voit & Mayer, Ltd. | 代理人 | Leydig, Voit & Mayer, Ltd. |
| 主权项 | 1. A method, implemented in a receiver, for estimating a normalised frequency offset between a transmitter and the receiver in a wireless communication system, based on Orthogonal Frequency Division Multiplexing, OFDM, the method comprising: receiving a first pilot signal (yr1) and a second pilot signal (yr2) from the transmitter; computing a Karhunen-Loeve approximation λK(φ), up to any finite order K of a log-likelihood function λ(φ), based on the received first and second pilot signals (yr1, yr2); and estimating the frequency offset by calculating a maximum value of the computed Karhunen-Loeve approximation λK(φ); compensating the frequency offset by a frequency shift. | ||
| 地址 | Shenzhen CN | ||