Method for transmitting data of multiple carrier wave

A data transmission method and multi-carrier technology, applied in the multi-carrier field, can solve problems such as ineffective PAPR, multiple hardware resources or time resources, and large amount of calculation
CN101110809AInactive Publication Date: 2008-01-23UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2008-01-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a multicarrier data transmission method. A candidate phase factor sequence with small cross correlation is chosen from the unit circle of a coordinate space in advance. The method comprises that, A. the data waiting for transmitting in the transmitting end are processed by using all candidate phase factor sequences, the PAPR values of processing results are computed and compared, the candidate phase factor sequence corresponding to the PAPR minimum value is determined for the phase factor sequence selected; B. the processing result corresponding to the PAPR minimum value is considered as the main information, and the master information and the group numbers of the phase factor sequence selected are transmitted to the receiving end together; C. the receiving end determines the phase factor sequence selected according to the group numbers received, and makes the main information received be restored to the data waiting for transmitting.
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Description

Technical field

[0001] The present invention relates to multi-carrier technology in wireless communication, in particular to a multi-carrier data transmission method. Background technique

[0002] In recent years, with the continuous development and maturity of wireless communication technology, multi-carrier technologies such as Orthogonal Frequency Division Multiplexing (OFDM) have the advantages of strong anti-multipath capability, high data transmission rate, and flexible resource allocation. It has received widespread attention and will become another core technology after Code Division Multiple Access (CDMA).

[0003] The core idea of ​​multi-carrier technology is to divide a given channel into several independent sub-channels in the frequency domain, use one sub-carrier for modulation on each sub-channel, and transmit each sub-carrier in parallel. It can be seen that the multi-carrier signal is superimposed by a series of sub-channel signals accumulated in the time domain....

Claims

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