Large-scale antenna array oriented wireless energy information transmission network power control method

A large-scale antenna and wireless energy technology, applied in wireless communication, power management, electrical components, etc., can solve problems such as uneven power distribution, interference between users, and low power of target terminals
CN104600873AActive Publication Date: 2015-05-06上海瀚芯实业发展合伙企业(有限合伙)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海瀚芯实业发展合伙企业(有限合伙)
Publication Date
2015-05-06

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Abstract

The invention discloses a large-scale antenna array oriented wireless energy information transmission network power control method. The large-scale antenna array oriented wireless energy information transmission network power control method comprises the following steps that firstly upstream channel parameters are estimated on the base station side and are obtained according to channel reciprocity; then, a base station allocates information sending power for each user and calculates pre-encoding vectors to perform downstream energy transmission by means of the method according to the estimated channel parameters; a terminal collects energy and then utilizes the power energy to send the information to the base station through upstream links; finally, the base station calculates receiving vectors according to upstream channel information and accordingly obtains upstream transmitted information of the users. The large-scale antenna array oriented wireless energy information transmission network power control method can be effectively applied to an actual scene, the terminal and rate of a system can be maximized, and meanwhile the minimum rate of the terminal of the system is maximized.
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Description

technical field

[0001] The invention relates to the field of power control, especially the power control in the transmission process of wireless energy and information. Background technique

[0002] Wireless energy transmission technology transmits energy to the terminal in the form of electromagnetic waves, which can prolong the battery life of the terminal, and even build a wireless energy transmission system that avoids battery replacement. It is used in some places where charging is difficult or even difficult to complete, such as battlefields, pollution / radiation environments, and inside the human body. The combination of wireless energy transfer system and traditional communication technology can realize the mixed transmission of energy and information. In the prior art, there are mainly two hybrid transmission schemes, namely Simultaneous Wireless Information and Power Transfer (SWIPT for short) and Wireless Powered Communication Network (WPCN for short). Under the ...

Claims

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