Method and device for coordinating interference

A technology of interference coordination and interference information, applied in the directions of location diversity, radio transmission system, network planning, etc., can solve problems such as increasing overhead, and achieve the effect of reducing mutual interference

Active Publication Date: 2013-10-23
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

However, frequent reporting of the PMI of neighboring cells by the UE will greatly increase the uplink overhead

Method used

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  • Method and device for coordinating interference

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] The technical solution of the present invention can be applied to various communication systems, for example, long term evolution (LTE, Long Term Evolution) or advanced long term evolution (LTE-A, LTE-Advanced).

[0019] The UE may also be referred to as a mobile terminal (Mobile Terminal), mobile user equipment, etc., and may communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network). UEs may be m...

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Abstract

The present invention provides a method and a device for interference coordination. The method comprises: determining mutually interfering wave beams between a cell of a first base station and a cell of a second base station based on first interference information and second interference information, the first interference information comprising a first cell set, the first cell set comprising a first interference cell to which the interference wave beam of a wave beam of the cell of the first base station belongs, the second interference information comprising a second cell set, and the second cell set comprising a second interference cell to which the interference wave beam of a wave beam of the cell of the second base station belongs; coordinating time-frequency resources, time domain resources or frequency domain resources occupied when the mutually interfering wave beams between the cell of the first base station and the cell of the second base station are sent, so as to reduce interference. The technical solution may provide a method for interference coordination. By coordinating, wave beams of the cells of the base stations are sent in a staggered manner in terms of the time-frequency resources, the time domain resources or the frequency domain resources, thereby reducing the mutual interference between the wave beams of the cells of the base stations without increasing uplink costs.

Description

technical field [0001] The present invention relates to the field of wireless communication, and more particularly, to a method and device for interference coordination in wireless communication. Background technique [0002] Smart antenna technology can make full use of the spatial characteristics of wireless resources, improve the utilization rate of wireless mobile communication systems for wireless resources, and fundamentally improve system capacity. Beamforming (beamforming), as its core technology, has played a huge role in eliminating inter-cell interference and improving user performance at the cell edge. [0003] In the LTE-A CoMP (Long Term Evolution-Advanced Coordinated Multi-Point, Advanced Long Term Evolution-Advanced Coordinated Multi-Point) technology, various adjacent cell interference coordination mechanisms based on beamforming are discussed. The best / worst companion Precoding Matrix Indicator (best / worst companion Precoding Matrix Indicator) requires the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W72/12
CPCH04W72/082H04W72/08H04B7/024H04B7/0639H04W72/541H04B7/0456
Inventor 罗海燕邓天乐温容慧李铕
Owner HUAWEI TECH CO LTD
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