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MC-DS-CDMA uplink receiving method and device for array antenna

A MC-DS-CDMA, array antenna technology, applied in diversity/multi-antenna system, multiplexing communication, code division multiplexing system and other directions, can solve the problem of complex signal processing, reduce complexity, Improve stability and performance, with less system performance drop

Inactive Publication Date: 2010-09-08
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the basic structure and uplink receiving method of the existing array antenna MC-DS-CDMA system proposed under the basic concept of MC-DS-CDMA are very different from the method proposed by the present invention, and the signal processing is complicated

Method used

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  • MC-DS-CDMA uplink receiving method and device for array antenna
  • MC-DS-CDMA uplink receiving method and device for array antenna
  • MC-DS-CDMA uplink receiving method and device for array antenna

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Abstract

The invention relates to an uplink receiving method of array antenna MC-DS-CDMA system. The method is carried out with the steps that: first, the signals received by each array unit of the array antenna are respectively transmitted to carrier signal separation modules and are multiplied with a corresponded sub-carrier, which realizes the sub-carrier signal separation and obtains an output signal;second, de-spread and matched filter process to each separated array unit sub-carrier signal are carried out to realize user signal de-spreading and get the user sub-carrier signal matched filter output; third, the matched filter output signals on different array units are combined in the air domain to get user sub-carrier signal final judge variable and get the air domain diversity gain; fourth,user sub-carrier signal final judge variable after air domain combination is judged to get the user sub-carrier signal judge result. The method obviously enhances MC-DS-CDMA system performance.

Description

technical field The invention relates to an array antenna MC-DS-CDMA uplink receiving method and device, and belongs to the technical field of array antennas for MC-DS-CDMA cellular mobile communication systems. Background technique In the third generation (3G) mobile communication system, CDMA is the most important technology, and multi-carrier modulation will be the key technology of the future broadband wireless transmission system. Combining multi-carrier technology with CDMA technology to form a multi-carrier CDMA system is one of the important directions for future mobile communication development. The combination of multi-carrier technology and CDMA technology mainly includes three typical forms: multi-carrier CDMA (MC-CDMA), multi-carrier direct-sequence spread spectrum CDMA (MC-DS-CDMA) and multi-tone modulation CDMA (MT-CDMA). [Hara S and Prasad R.An Overview of Multi-carrier CDMA.IEEEComm.Mag.1997;35(12),pp.126-33.;Hara S and Prasad R.An Overview of Multi-carrier...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04B7/08
Inventor 杨维陈俊仕
Owner BEIJING JIAOTONG UNIV
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