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Heterogeneous network interference coordinating method

A technology of interference coordination and heterogeneous network, applied in network planning, electrical components, wireless communication, etc., can solve problems such as not raised, and achieve the effect of minimizing interference

Inactive Publication Date: 2015-04-15
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a heterogeneous network interference coordination method that can ensure different carrier configurations for sending PDCCHs made by macro eNBs and pico eNBs has not yet been proposed.

Method used

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Embodiment Construction

[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] The core idea of ​​the present invention is: when the interference coordination mechanism is started, the macro eNB is required to transmit the configuration status of the primary control carrier and the secondary control carrier of multiple carriers on the control interface with the picoeNB, so as to assist the pico eNB to determine its own carrier configuration Avoid mutual conflicts, reduce interference, and realize interference coordination of heterogeneous networks based on carrier aggregation.

[0018] image 3 It is a schematic flow chart of Embodiment 1 of the present invention, such as image 3 As shown, this embodiment includes the following steps:

[0019] Step 301, the macro base station notifies the pico base station...

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Abstract

The invention provides a heterogeneous network interference coordinating method. The heterogeneous network interference coordinating method comprises the following steps: a micro base station macro eNB informs load information through a load, informing current master control carrier configuration information of a cell or currently-available carrier resource information of a femto base station Pico eNB notified to the femto base station, wherein available carrier resources do not comprise a currently-configured master control carrier of the micro base station; and the femto base station configures the master control carrier and an auxiliary control carrier of the cell according to the configuration information or the available carrier resource information and according to a principle that the micro base station and the femto base station have different carrier configurations. By the heterogeneous network interference coordinating method, the Pico eNB and the macro eNB are ensured to use different carrier configurations and interference on Pico peripheral UE (user equipment) on a control channel can be minimized so as to coordinate the interference.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a heterogeneous network interference coordination method. Background technique [0002] Existing research shows that a heterogeneous network is introduced into a long-term evolution-advanced (LTE-advanced) system. A heterogeneous network refers to the deployment of micro cells under the macro cell. Such as remote radio unit (RRH), pico base station (Pico eNB), home base station (Home eNB) and relay base station (relay eNB). The introduction of these micro cells leads to more cell border areas, which cause severe interference. In addition, the power imbalance between macro and micro intervals aggravates this interference. There are typically two types of deployments under a heterogeneous network. One is macro cell+femto cell, and the other is macro cell+pico cell. In both deployments, there are serious interference problems. [0003] In the deployment mode of macro cell+pic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14H04W72/08H04W72/54
Inventor 张莉莉潘瑜高伟东吴联海池连刚高兴航
Owner POTEVIO INFORMATION TECH CO LTD
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