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Uplink interference coordination combined power control method among communities

A technology of power control and interference coordination, applied in the field of inter-cell power control combined with uplink interference coordination, to achieve the effects of improving transmission efficiency, increasing spectrum efficiency, and increasing transmission power

Inactive Publication Date: 2013-01-02
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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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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  • Uplink interference coordination combined power control method among communities
  • Uplink interference coordination combined power control method among communities
  • Uplink interference coordination combined power control method among communities

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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 invention provides an uplink interference coordination combined power control method among communities. The method includes the steps of dividing bandwidth resources of a community into periphery frequency bands and central frequency bands and periphery frequency bands of adjacent communities are orthogonal; determining whether users in the community are central users or periphery users, distributing the periphery frequency bands to the periphery users, and distributing the central frequency bands to the central users; and improving the transmitted power of the periphery users and / or reducing the transmitted power of the central users. According to the method, uplink interference coordination and power control among communities are combined for usage, the transmission efficiency of the periphery users can be further improved, and the interference coordination performance can be optimized.

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 Applications(China)
IPC IPC(8): H04W16/02H04W16/18H04W52/24H04W52/34
CPCY02B60/50
Inventor 邱禹李维娜
Owner POTEVIO INFORMATION TECH
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