Inter-cell interference coordination method and device

A technology of inter-cell interference and coordination methods, which is applied in wireless communication, electrical components, network planning, etc., and can solve problems such as poor ICIC interference coordination effect.

Active Publication Date: 2019-05-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a method and device for inter-cell interference coordination to solve the problem of poor ICIC interference coordination effect

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  • Inter-cell interference coordination method and device
  • Inter-cell interference coordination method and device
  • Inter-cell interference coordination method and device

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Embodiment Construction

[0105] Before describing the technical solutions provided by the present invention through specific embodiments, some technical features involved in the embodiments of the present invention will be explained first.

[0106] Centralized node, one centralized node can control multiple base stations. Centralized nodes can be logical entities or stand-alone devices. For example, it can be a core network device such as an independent gateway (GW), or a software or hardware module installed on a core network device such as a GW, it can be a core network node, and it can be an operation, management and maintenance (Operation Administration and Maintenance, OAM) A node may also be a software or hardware module set on an OAM node, may be a base station, or may be a software or hardware module set on a base station. A centralized node can control multiple base stations.

[0107] Base station, in this embodiment of the present invention, a base station refers to a small station, such a...

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Abstract

The invention discloses an inter-cell interference coordination method and a device. The method comprises steps: cells in each base station are grouped, wherein cells whose mutual interference is in an allowable range are divided into a group; a working frequency band is distributed for each cell group respectively, the working frequency band distributed for the cells in the same group has the same central frequency point, and the working frequency bands distributed for cells in different groups have different central frequency points. According to the technical scheme provided by the embodiment of the invention, interference coordination is carried out on cells in each base station in an integrated mode, and compared with an ICIC distributive coordination mode, inter-cell interface load is reduced. In addition, interference coordination is carried out on cells in each base station in an integrated mode, cells in each base station are grouped firstly, cells whose mutual interference exceeds the allowable range are divided into different groups, different central frequency points are distributed, interference is effectively reduced, and interference coordination effects are ensured.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for inter-cell interference coordination. Background technique [0002] In a wireless communication system, signals propagate through the wireless environment. Under the deployment of multiple base stations, if adjacent base stations use the same operating frequency, in most systems, such as Orthogonal Frequency Division Multiplexing (OFDM) systems, code division multiple In a Code Division Multiple Access (CDMA) system, it will cause interference to adjacent cells, resulting in ineffective use of spectrum resources and degrading transmission performance of the wireless system. [0003] Take a long term evolution (Long Term Evolution, LTE) system using OFDM technology as an example. In the LTE system, the base station allocates time-frequency resources of different subcarriers for the terminal to transmit service data signals, and there...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
Inventor 贺媛刘佳敏
Owner DATANG MOBILE COMM EQUIP CO LTD
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