发明名称 |
Processing method for orthogonal frequency division multiplexing signal and network device |
摘要 |
The present invention is applicable to the communications field and provides a processing method for an orthogonal frequency division multiplexing (OFDM) signal and a network device. The processing method includes: obtaining an orthogonal frequency division multiplexing OFDM signal; multiplying, in a digital domain, the obtained OFDM signal by a simple harmonic wave whose frequency is fs to obtain a frequency shifted signal; and outputting and loading the frequency shifted signal by using a digital-to-analog conversion (DAC) to a driver and a modulator to send the frequency shifted OFDM signal. |
申请公布号 |
US9537619(B2) |
申请公布日期 |
2017.01.03 |
申请号 |
US201615099938 |
申请日期 |
2016.04.15 |
申请人 |
Huawei Technologies Co., Ltd. |
发明人 |
Zhang Qiang;Li Liangchuan |
分类号 |
H04L27/00;H04L5/00;H04L27/26;H04B1/00;H04L25/03 |
主分类号 |
H04L27/00 |
代理机构 |
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代理人 |
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主权项 |
1. A processing method for an orthogonal frequency division multiplexing (OFDM) signal, the method comprising:
multiplying, in a digital domain, a generated OFDM signal by a simple harmonic wave having frequency fs to obtain a frequency shifted OFDM signal; performing digital-to-analog conversion on the frequency shifted OFDM signal to obtain an OFDM signal after the digital-to-analog conversion; amplifying the OFDM signal after the digital-to-analog conversion by using a driver, to obtain an amplified OFDM signal; and modulating the amplified OFDM signal by using a modulator and sending a modulated OFDM signal, wherein:
fs is equal to Δf/n, n is an integer greater than 1, and Δf is a frequency difference between two adjacent subcarriers for the obtained OFDM signal. |
地址 |
Shenzhen CN |