A method of inter-cell power control combined with uplink interference coordination

A power control and inter-cell technology, applied in power management, electrical components, wireless communication, etc., to improve transmission efficiency, increase spectrum efficiency, and increase transmission power

Inactive Publication Date: 2016-12-14
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that there are certain shortcomings in the inter-cell uplink interference suppression schemes in the prior art

Method used

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  • A method of inter-cell power control combined with uplink interference coordination
  • A method of inter-cell power control combined with uplink interference coordination
  • A method of inter-cell power control combined with uplink interference coordination

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Embodiment Construction

[0023] The basic idea of ​​the inter-cell power control method combined with uplink interference coordination proposed by the solution of the present invention is as follows:

[0024] A. Divide the bandwidth resource of the cell into an edge frequency band and a central frequency band; the edge frequency bands of adjacent cells are orthogonal to each other;

[0025] B. Judging whether the user in the cell is a central user or an edge user, assigning the edge frequency band to the edge user, and assigning the center frequency band to the center user;

[0026] C. Increase the transmit power of edge users and / or reduce the transmit power of central users.

[0027] In order to make the features and technical effects of the technical solution of the present invention clearer, the solution of the present invention will be further described in detail below through specific examples.

[0028] Figure 1a It is a schematic diagram of cell frequency band resource planning according to a...

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Abstract

The present invention provides an inter-cell power control method combined with uplink interference coordination, comprising the following steps: A. dividing the bandwidth resources of a cell into edge frequency bands and center frequency bands; the edge frequency bands of adjacent cells are orthogonal to each other; B. judging the cell Whether the internal user is a central user or an edge user, the edge frequency band is allocated to the edge user, and the central frequency band is allocated to the central user; C. Increase the transmit power of the edge user and / or reduce the transmit power of the central user. The scheme of the present invention combines uplink interference coordination and inter-cell power control, which can further improve the transmission efficiency of edge users and optimize the interference coordination performance.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an inter-cell power control method combined with uplink interference coordination. Background technique [0002] In cellular wireless communication systems based on Orthogonal Frequency Division Multiplexing (OFDMA) technology, such as LTE and WIMAX systems, users in a cell achieve signal orthogonality through frequency division, which better solves the problem of interference in the cell. But as a price, the same-frequency networking will bring strong inter-cell interference. Cell edge users are farther away from the serving base station, and receive lower power of useful signals, so they are more susceptible to interference; at the same time, cell edge users are closer to neighboring cells, and are more likely to cause interference to neighboring cells during uplink data transmission. . Based on these two reasons, the performance of cell edge users beco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/02H04W16/18H04W52/24H04W52/34
Inventor 邱禹李维娜
Owner POTEVIO INFORMATION TECH CO LTD
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