| 发明名称 |
Channel estimator for updating channel estimates and carrier frequency offsets |
| 摘要 |
A channel estimator for a wireless network receiver. The channel estimator includes a plurality of first circuits, each of the plurality of first circuits configured to multiply a respective channel estimate by a corresponding frequency domain signal, wherein the channel estimates correspond to an orthogonal frequency division multiplexing signal received by the wireless network receiver. A second circuit is configured to output a sum of results of multiplying the respective channel estimates by the corresponding frequency domain signals. A third circuit is configured to calculate, based on the sum, a correction factor, wherein the correction factor corresponds to a complex number representation of the respective channel estimates. A fourth circuit is configured to output, based on the correction factor and a previously calculated channel estimate, an updated channel estimate corresponding to the orthogonal frequency division multiplexing signal received by the wireless network receiver. |
| 申请公布号 |
US8929487(B1) |
申请公布日期 |
2015.01.06 |
| 申请号 |
US201314143722 |
申请日期 |
2013.12.30 |
| 申请人 |
Marvell International Ltd. |
发明人 |
Narasimhan Ravi |
| 分类号 |
H04L27/06;H04L27/26;H04L25/02 |
主分类号 |
H04L27/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A channel estimator for a wireless network receiver, the channel estimator comprising:
a plurality of first circuits, each of the plurality of first circuits configured to multiply a respective channel estimate by a corresponding frequency domain signal, wherein the channel estimates correspond to an orthogonal frequency division multiplexing signal received by the wireless network receiver; a second circuit configured to output a sum of results of multiplying the respective channel estimates by the corresponding frequency domain signals; a third circuit configured to calculate, based on the sum, a correction factor, wherein the correction factor corresponds to a complex number representation of the respective channel estimates; and a fourth circuit configured to output, based on the correction factor and a previously calculated channel estimate, an updated channel estimate corresponding to the orthogonal frequency division multiplexing signal received by the wireless network receiver. |
| 地址 |
Hamilton BM |
