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Transmitting system, receiving system, transmitting method and receiving method

A technology of transmitting system and receiving system, applied in the field of transmitting and receiving, can solve the problem of lack of communication of multiple rates, and achieve the effect of improving application compatibility, simplifying hardware and software structure, and simplifying hardware and software

Active Publication Date: 2014-02-12
WUHAN POST & TELECOMM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] To sum up, in the prior art, if switching between two or more transmission rates is to be achieved, the hardware and software must be greatly upgraded or changed. Device and method for realizing multi-rate communication

Method used

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  • Transmitting system, receiving system, transmitting method and receiving method
  • Transmitting system, receiving system, transmitting method and receiving method
  • Transmitting system, receiving system, transmitting method and receiving method

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Embodiment Construction

[0049] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make this disclosure more thorough and complete, and other embodiments not described in this disclosure will be apparent to those skilled in the art after reading this disclosure within the scope of this disclosure.

[0050] FIG. 2( a ) is a block diagram illustrating a transmitting system 200 for transmitting signals according to an embodiment of the present invention.

[0051] The transmitting system 200 includes: a transmitting end selection device 201, configured to selectively input input bit data to one of the first constellation mapping modulation device 2...

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Abstract

The invention discloses a transmitting system, a receiving system, a transmitting method and a receiving method, and multi-speed communication is achieved. The transmitting system for transmitting signals comprises a transmitting end selection device, a first constellation mapping modulation device, a second constellation mapping modulation device and an OFDM modulation device. The transmitting end selection device is used for selectively inputting inputted bit data to the first constellation mapping modulation device and the second constellation mapping modulation device on the basis of the transmitting speeds. The first constellation mapping modulation device is used for conducting first constellation mapping modulation on signals inputted to the first constellation mapping modulation device on the basis of selection of the transmitting end selection device to obtain constellation mapping signals. The second constellation mapping modulation device is used for conducting second constellation mapping modulation on signals inputted to the second constellation mapping modulation device on the basis of selection of the transmitting end selection device to obtain constellation mapping signals. The OFDM modulation device is used for conducting OFDM modulation on the constellation mapping signals to obtain signals of OFDM modulation and transmitting the signals of OFDM modulation.

Description

technical field [0001] The present disclosure relates to the field of optical fiber communication, and more particularly, to a transmitting system and a receiving system, and a transmitting method and a receiving method for realizing multi-rate communication. Background technique [0002] In order to transmit the digital signal in the communication channel, it is necessary to modulate the sine (or cosine) carrier signal with the digital signal. Several basic modulation methods include amplitude modulation (ASK), frequency modulation (FSK), phase modulation (PSK) and quadrature amplitude modulation (QAM). [0003] In order to achieve baud rates higher than R Baud The information rate R b , can use multi-level modulation formats, such as multi-level phase modulation format (mPSK), multi-level quadrature amplitude modulation (mQAM), etc., where m is a positive integer power of 2 or 2 p , where p is a positive integer. For example, when p=1 is BPSK (also known as 2PSK), R b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L25/02
CPCH04L27/0008H04L5/0028H04L27/261H04L27/2655H04L5/0044H04L5/0064H04L27/3455H04L27/2627H04L27/2649H04L27/183H04L5/0048H04L27/3488H04L27/26524
Inventor 杨奇黎偲杨铸余少华
Owner WUHAN POST & TELECOMM RES INST CO LTD
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