Four-antenna diversity transmission device based on GMC system, transmission method and receiving device, receiving method

A technology of antenna diversity and transmission method, applied in the directions of space transmit diversity, orthogonal multiplexing system, diversity/multi-antenna system, etc., can solve the problem that OFDM system is difficult to solve the problem of high PAR and high sensitivity of carrier plane deviation error
CN101325438BInactive Publication Date: 2012-10-10SHANGHAI RES CENT FOR WIRELESS COMM
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI RES CENT FOR WIRELESS COMM
Publication Date
2012-10-10
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

Disclosed is a four-antenna diversity transmitting device based on a GMC system, a transmitting method and a receiving device and a receiving method. In the transmitting device, a shaping filter pack module divides the whole channel bandwidth intp a plurality of orthogonal sub-channels, and each sub-channel is corresponding to a subfilter, then each pixel symbol in the column vector of the signalis respectively mapped onto the corresponding sub-channel, and then a multi-antenna diversity coding module converts the parallel symbol data sequence into the similar Alamouti structure and the signal pack with the diversity degree 4, finally four antennas are adopted to transmit the signal pack in eight block time, while in the receiving device, the minimum mean-squared error is adopted to balance the received signal, then the signal sequence is processed with the sub-belt matching filter, to generate the symbol data sequence of outputting a plurality of sub-belts in parallel, thereby obtaining the full diversity gain and effectively ensuring the communication quality of the chain, also realizing the peak-to-average power ratio and the reduction of the carrier frequency deviation error suseptibility.
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Description

technical field

[0001] The invention relates to a 4-antenna diversity sending device, a sending method, a receiving device and a receiving method based on a GMC system. Background technique

[0002] In a broadband wireless communication system, since the channel is a time-dispersed fading channel, better transmission performance can be obtained by using multi-antenna technology and space diversity. Compared with a single-antenna system or a system with fewer antenna configurations, a multi-antenna system can double the system capacity, while a 4-antenna system has become a very Competitive system configuration.

[0003] However, the existing wireless communication system mainly combines multi-antenna diversity transmission technology with OFDM system to realize. However, OFDM system is difficult to solve the problem of high PAR and is highly sensitive to carrier offset error. Therefore, how to solve the shortcomings of wireless communication system Become a technical probl...

Claims

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