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Base station and user combined transmission method of multi-antenna system based on network code

A multi-antenna system, network coding technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of inability to guarantee, low reliability of wireless network coding transmission, and achieve flexible use, ensure transmission reliability, and save money. The effect of wireless resources

Active Publication Date: 2015-06-17
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] However, there are still many challenges in the application of network coding technology in mobile communication systems
Due to the introduction of self-interference information in network coding information, the reliability of wireless network coding transmission is low
At the same time, the current network coding transmission schemes all require that the information participating in network coding adopts the same or similar modulation and coding methods, which makes network coding transmission subject to the "barrel principle" and cannot guarantee its own performance gain

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  • Base station and user combined transmission method of multi-antenna system based on network code
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  • Base station and user combined transmission method of multi-antenna system based on network code

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention more clear and complete, the present invention will be further described in detail below in conjunction with the accompanying drawings. And the described embodiments are only part of the content of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0018] see figure 1 , which introduces the composition diagram of the system architecture of the multi-antenna system of the present invention based on the joint transmission method of the base station and the user based on network coding. The multi-antenna system of the present invention based on the network coding base station and user joint transmission method is applicable to the scene where multiple users transmit information to ...

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Abstract

The invention provides a base station and user combined transmission method of a multi-antenna system based on a network code, comprising the following steps that a base station successively performs network coding and transmission on broadcasting information and received sending information of each user to realize combined transmission of the base station and a user; each user firstly sends information to decode the network codes of the received sending information and the base station broadcasting information to obtain the base station broadcasting information; and then the base station broadcasting information is used for decoding sending information of other users and network code information of the base station broadcasting information to obtain sending information of the other users, so as to guarantee that user decoding is accurate. According to the base station and user combined transmission method, the base station is used for respectively carrying out the network coding on the base station broadcasting information and the sending information of each user, so as to realize the combined transmission of two types of information of the user and the base station; an antenna resource is saved and the spectrum effectiveness is improved; and the problem that the spectrum effectiveness of a mobile honeycomb communication system is low is practically solved. The base station and each user code the sending information in advance so as to guarantee reliable transmission and flexible utilization.

Description

technical field [0001] The invention relates to a joint transmission method between a base station and a user based on network coding for a multi-antenna system, and belongs to the technical field of wireless transmission. Background technique [0002] As a limited resource, wireless spectrum determines the throughput of mobile communication system transmission, and has become a bottleneck restricting the improvement of wireless transmission performance. With the explosive growth of the number of mobile terminal users and the vigorous development of new wireless multimedia services, the problem of shortage of wireless spectrum resources has become increasingly prominent. In order to improve transmission performance and spectrum efficiency, and alleviate the shortage of wireless spectrum resources, the next-generation mobile cellular communication system uses multi-antenna technology. However, the traditional multi-antenna technology can only increase the spectral efficiency...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 彭木根赵中原韩斌谢信乾王文博
Owner BEIJING UNIV OF POSTS & TELECOMM
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