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Method and apparatus of mitigating interference in a heterogeneous network using an inter-cell interference coordination

A heterogeneous network, interference coordination technology, applied in network planning, network topology, network data management and other directions, can solve problems such as time-domain resource waste

Active Publication Date: 2018-06-29
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From this, it can be seen that under the known architecture, precious time domain resources will be wasted, because unnecessary ABSs are assigned to the base station

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  • Method and apparatus of mitigating interference in a heterogeneous network using an inter-cell interference coordination

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[0046] Embodiments of the present application will be explained with reference to the drawings, wherein the same reference symbols will be used to represent the same or similar elements. Please also note that the directions shown in the illustrations are in accordance with the directions of the reference symbols.

[0047] Figure 4 According to an embodiment of the present application, a heterogeneous network with an interference control server is shown, wherein the interference control server uses cross-base station interference coordination to mitigate interference in the heterogeneous network.

[0048] Such as Figure 4 As shown, the heterogeneous network includes multiple base stations eNB 1 -eNB 4 . In addition, these base stations eNB 1 -eNB 4 The communication ranges (represented by the dotted circles of the base stations) overlap at least some of each other. For example, a large base station eNB 4 The communication range of the small base station eNB overlaps ...

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Abstract

Methods and apparatuses of mitigating interference in a heterogeneous network using an inter-cell interference coordination are provided. An interference control server assigns, for each of the UE groups, a set of almost blank subframes (ABS) or non-preferred sub-bands specific to the corresponding one of the UE groups based on the UE group interference relationship and a resource demand for eachof the UE groups. A base station assigns a plurality of sets of ABS (or non-preferred sub-bands) to reuse time-domain (or frequency-domain) resources.

Description

technical field [0001] The present application relates to a method and device for mitigating interference, and in particular to a method and device for mitigating interference using inter-cell interference coordination in a heterogeneous network. Background technique [0002] In recent years, mobile broadband traffic has exploded due to the emergence of a new generation of mobile devices, such as smart phones, tablet computers, and notebook computers. On the other hand, consumers' demands and expectations for stable, high-quality and seamless mobile broadband experience are gradually increasing. Therefore, the capacity and coverage of today's networks need to be improved to achieve high data volume transmission and low latency transmission to meet consumer expectations. Because spectrum is a scarce resource, the deployment of heterogeneous networks, that is, the use of small cells to improve and increase the distribution density of existing macro cells (base stations), has ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W72/04H04W72/08H04W28/04H04W72/54
CPCH04W28/0236H04W72/0453H04W72/54H04W16/32H04W28/16H04W8/186H04W84/045H04W72/51H04W72/541H04L5/0032H04W16/14
Inventor 黄任锋梁庆丰林佑恩
Owner IND TECH RES INST