Power estimation method and apparatus

Patent metadata

Field	Value
Publication number	US-10285140-B2
Application number	US-201715582373-A
Country	US
Kind code	B2
Filing date	Apr 28, 2017
Priority date	Oct 31, 2014
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

Embodiments of the present invention disclose a power estimation method and apparatus. On a premise of controlling interference caused by a second node to a first node to be within a range, a transmit power of the second node can be increased so as to improve communication quality of the second node. A specific solution is: obtaining an estimated load value of each first node in N first nodes according to a transmit power and user service requirements of each first node that are obtained and according to a transmit power set for each second node in M second nodes, and further, respectively using the transmit power set for each second node as an allowed transmit power of each second node according to the estimated load value of each first node in the N first nodes.

First claim

What is claimed is:

1. A power estimation method, comprising:
obtaining a transmit power of each first node in N first nodes;
setting a transmit power of each second node in M second nodes, wherein each second node is a network node that causes interference to at least one first node in the N first nodes;
obtaining channel gains from each first node and each second node to each user;
obtaining user service requirements of each first node in the N first nodes, wherein user service requirements of an n th first node in the N first nodes are service data rates between the n th first node and users served by the n th first node, and n is a positive integer less than or equal to N;
obtaining an estimated load value of each first node in the N first nodes according to the transmit power of each first node in the N first nodes, the user service requirements of each first node in the N first nodes, and the transmit power of each second node in the M second nodes, wherein the estimated load value of the n th first node in the N first nodes is a value obtained by estimating a physical resource consumption level of the n th first node in the N first nodes; and
when the estimated load value of each first node in the N first nodes is less than a first threshold and greater than a second threshold, or the estimated load value of each first node in the N first nodes is less than the first threshold and the transmit power of each second node in the M second nodes is greater than a third threshold, individually using the transmit power of each second node in the M second nodes as an allowed transmit power of each second node in the M second nodes,
wherein the obtaining estimated load value of each first node in the N first nodes according to the transmit power of each first node in the N first nodes, the user service requirements of each first node in the N first nodes, and the transmit power of each second node in the M second nodes comprises:
substituting the transmit power of each first node in the N first nodes, the user service requirements of each first node in the N first nodes, and the transmit power of each second node in the M second nodes into a first formula, so as to obtain, by means of calculation, the estimated load value of the n th first node in the N first nodes,
wherein the first formula is:

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Assignees

• Huawei Tech Co Ltd
• Fraunhofer Ges Forschung

Inventors

• Zhuang Hongcheng
• Beletchi Andrian
• Zhang Jietao

Classifications

• H04W52/243

  taking into account interferences · CPC title

• H04W52/244 Primary

  Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI] · CPC title

• H04W52/362 Primary

  Aspects of the step size · CPC title

• H04W52/367

  Power values between minimum and maximum limits, e.g. dynamic range · CPC title

• H04W52/343

  taking into account loading or congestion level · CPC title