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Signal transmitting and receiving method and device

A receiving method and signal transmission technology, applied in the information field, can solve problems such as extremely high spectrum utilization rate and limited role of spectrum utilization rate

Inactive Publication Date: 2006-11-08
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
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Problems solved by technology

In addition, Orthogonal Frequency Division Multiplexing (OFDM) technology is the core technology of 4G, but 4G requires extremely high spectrum utilization, and Orthogonal Frequency Division Multiplexing OFDM has limited effect on improving spectrum utilization.

Method used

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  • Signal transmitting and receiving method and device
  • Signal transmitting and receiving method and device
  • Signal transmitting and receiving method and device

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Embodiment Construction

[0063] Refer to the attached Figure 1-10Describe the preferred embodiment of the present invention in detail, in the multiple-input / multiple-output MIMO orthogonal frequency division multiplexing OFDM iterative Turbo signal transmission / receiver implementation of the present invention, the transmitting end is composed of a data flow unit 1, a coding mapping module 200, and a serial-to-parallel conversion Module 300, space-time coding module 400, pilot insertion module 500, orthogonal frequency division multiplexing OFDM modulation module 600 and N t modules such as a radio frequency transmitting unit 7; correspondingly, at the receiving end by N r Modules such as a radio frequency receiving unit 8, an orthogonal frequency division multiplexing OFDM demodulation module 900, a pilot frequency separation module 1000, a channel estimation module 1100, a space-time decoding module 1200, a decoding and demodulation module 1300 and a recovered data flow unit 14 constitute. Among t...

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Abstract

The present invention discloses signal transmitting / receiving method and device. It adopts time space multiplexing technology and time space diversity technique adjoined and iteration mechanism possessed, iterate Turbo multiple input / multiple output MIMO orthogonal frequency division multiplexing OFDM signal transmitting / receiving method and device, further improving anti-interference ability, increasing diversity gain, effectively resisting burst error influence in mobile channel, enhancing communication system reliability, transmitting data rate and and error rate performance.

Description

technical field [0001] The invention relates to a signal transmitting / receiving method and device, and belongs to the field of information technology. Background technique [0002] Multiple Input Multiple Output MIMO (Multiple Input Multiple Output) technology is an important way to achieve high data rate and improve transmission reliability in future mobile communication systems, and it provides a method to solve the bottleneck problem of service capacity demand in future Internet wireless networks. Multiple-input multiple-output MIMO technology has appeared in commercial wireless communication products and networks such as broadband wireless access system, wireless local area network WLAN, third-generation communication 3G and subsequent three-generation communication B3G. Multiple-input multiple-output MIMO communication system is defined as: using multiple antennas at the transmitting end and receiving end respectively, so as to improve the service quality (bit error rat...

Claims

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Application Information

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IPC IPC(8): H04L27/26H03M13/29H04L1/06
Inventor 熊勇林文峰张小东卜智勇
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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