| 发明名称 | Method and device for receiving non-synchronous signal in OFDMA system | ||
| 摘要 | A method and device for receiving a non-synchronous signal in an Orthogonal Frequency Division Multiple Access (OFDMA) system are provided. The method includes the following steps. Fourier transform is performed on a received first time domain signal to acquire a corresponding frequency domain signal. A sub-carrier occupied by a band of a non-synchronous signal to be received in the frequency domain signal is set to zero, inverse Fourier transform is performed on the frequency domain signal to acquire a second time domain signal, and the second time domain signal is subtracted from the first time domain signal. Or, the sub-carrier other than the sub-carrier occupied by the band of the non-synchronous signal to be received in the frequency domain signal is set to zero, and inverse Fourier transform is performed on the frequency domain signal to acquire a time domain received signal corresponding to the band of the non-synchronous signal. | ||
| 申请公布号 | US8923338(B2) | 申请公布日期 | 2014.12.30 |
| 申请号 | US201012875484 | 申请日期 | 2010.09.03 |
| 申请人 | Huawei Technologies Co., Ltd. | 发明人 | Luo Yi;Hua Wenjian;Ruan Wei |
| 分类号 | H04J1/00;H04L27/26 | 主分类号 | H04J1/00 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. A method of receiving a non-synchronous signal in an Orthogonal Frequency Division Multiple Access (OFDMA) system, comprising: performing Fourier transform on a received first time domain signal to acquire a frequency domain signal corresponding to the received first time domain signal; and setting a sub-carrier occupied by a band of a non-synchronous signal to be received in the frequency domain signal to zero, performing inverse Fourier transform on the frequency domain signal to acquire a second time domain signal, and subtracting the second time domain signal from the first time domain signal to acquire a time domain received signal corresponding to the band of the non-synchronous signal; and wherein the method is enabled to acquire the time domain received signal corresponding to the band of the non-synchronous signal by setting a sub-carrier other than the sub-carrier occupied by the band of the non-synchronous signal to zero, and performing inverse Fourier transform on the frequency domain signal. | ||
| 地址 | Shenzhen CN | ||