Invention Grant
US09281980B2 Receiving apparatus and method, sending apparatus and method, front-end circuit, modulator, and transceiving system
有权
接收装置和方法，发送装置和方法，前端电路，调制器和收发系统
- Patent Title: Receiving apparatus and method, sending apparatus and method, front-end circuit, modulator, and transceiving system
- Patent Title (中): 接收装置和方法，发送装置和方法，前端电路，调制器和收发系统
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Application No.: US14558115Application Date: 2014-12-02
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Publication No.: US09281980B2Publication Date: 2016-03-08
- Inventor: Weijian Chen
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: CN201310637614 20131202
- Main IPC: H04B10/00
- IPC: H04B10/00 ; H04L27/26 ; H04B10/516 ; H04B10/548 ; H04B10/67 ; H04B10/69 ; H04J14/00
Abstract:
A receiving apparatus and method, a sending apparatus and method, a front-end circuit, a modulator, and a transceiving system are provided. The sending apparatus includes: a double-sideband OFDM modulator, configured to perform double-sideband OFDM modulation on a bit sequence of service data to obtain a double-sideband OFDM analog electrical signal, where the double-sideband OFDM analog electrical signal carries the service data on both positive and negative sidebands, and an IQMZ, configured to perform optical carrier modulation on the double-sideband OFDM analog electrical signal to obtain a double-sideband OFDM optical signal, where the double-sideband OFDM optical signal carries the service data on both positive and negative sidebands. In comparison with a traditional manner in which service data is only carried on a positive sideband, bandwidth utilization in the present invention doubles.
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