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Cellular base station, power allocation parameters, method, and downlink data preprocessing device

A technology of power allocation parameters and downlink data, applied in power management, radio transmission systems, electrical components, etc., to achieve the effect of concentrated variation range, increased total capacity, and constant transmit power

Active Publication Date: 2018-07-27
CERTUS NETWORK TECHNANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, this method needs to iteratively perform the above-mentioned calculation of interrupting the signal-to-noise ratio and then allocating power until no new users are denied service

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  • Cellular base station, power allocation parameters, method, and downlink data preprocessing device
  • Cellular base station, power allocation parameters, method, and downlink data preprocessing device
  • Cellular base station, power allocation parameters, method, and downlink data preprocessing device

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0027] The simplified geometrical algorithm of the maximum capacity power distribution of the cellular base station proposed by the present invention mainly includes the following main technical problems: the geometric representation method of the base station transmission power boundary based on the Gail circle, the power distribution method based on the minimum fluctuation range of the transmission power, and the multi-user In the case of geometric scheduling algorithm and transmit power control design, etc.

[0028] The present invention is applicable to all base stations that use the N-order precoding matrix B to precode and transmit the information vector s in the downlink of the cellular mobile communication. On the base station side, the transmit power p tx can be expressed as: p tx =s H B H B s,C=B H B, where the superscript H represen...

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Abstract

The invention discloses a cellular base station, power distribution parameters and method, and a downstream data pre-processing apparatus. According to the invention, the power distribution parameters are designed, and downstream data are pre-processed and then are transmitted through antennas, allowing a more concentrated change scope of transmission power. Accordingly, the transmission power can avoid sudden increase caused by poor channel characteristics, and the power of a transmitter is more stable, thereby improving efficiency. Meanwhile, compared with schemes lack of power scheduling, the total capacity of the scheme of the invention is increased. Based on the above, a transmit power control factor is introduced so as to realize constant transmitter power.

Description

technical field [0001] The invention relates to a cellular base station, a power allocation parameter, a method and a downlink data preprocessing device, and belongs to the technical field of physical layer precoding of a cellular communication system base station. Background technique [0002] In a cellular network, how to increase the capacity of the system is a key issue. The downlink power of the base station is usually subject to certain constraints. For example, the output of the power amplifier has linear requirements and the distortion range of the signal. In addition, from 3G, 4G to 5G under research, the radius of cells is getting smaller and smaller in order to improve capacity. This requires strict restrictions on the transmit power of the base station to avoid excessive interference to users in adjacent cells. While emphasizing the limitation of transmission power, the requirements for capacity are constantly increasing. According to the current plan, 5G wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/34H04B7/0426H04B7/0456
CPCH04B7/0456H04W52/346
Inventor 董恒
Owner CERTUS NETWORK TECHNANJING