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Distributed energy-saving resource distribution method of heterogeneous network

A resource allocation and heterogeneous network technology, applied in the direction of reducing energy consumption, advanced technology, electrical components, etc., can solve the problems of home base station same-layer interference, macro base station and small home base station cross-layer interference, waste of power, etc.

Active Publication Date: 2014-11-19
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Shared spectrum can cause cross-layer interference between macro base stations and small femtocells
At the same time, in order to improve spectrum utilization, femto base stations may share the same wireless resources, so that same-layer interference will occur between femto base stations
Cross-layer interference and same-layer interference can significantly limit network performance
Without proper interference management, a lot of power will be wasted and the network will be less energy efficient overall than a network without small cells

Method used

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  • Distributed energy-saving resource distribution method of heterogeneous network
  • Distributed energy-saving resource distribution method of heterogeneous network
  • Distributed energy-saving resource distribution method of heterogeneous network

Examples

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Embodiment Construction

[0035] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] figure 1 As the overall flowchart of this method, it can be seen from the figure that this method can be divided into 4 major steps, namely:

[0037] Step A, set the system mode.

[0038] Step B, obtaining the neighbor interference list AIL information of each home base station in the cell.

[0039] Step C, according to the proposed method, each home base station performs preliminary sub-channel allocation.

[0040] In step D, the cooperative sub-channel allocation is performed again among the home base stations.

[0041] Step F, perform power allocation according to the spectrum allocation result.

[0042] The specific process of each step is described in detail below.

[0043] Step A - Set the system mode.

[0044] see figure 2 , figure 2 The flowchart set for the system model may specifically include the following parts: ...

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Abstract

The invention discloses a distributed energy-saving resource distribution method of a heterogeneous network, and belongs to the technical field of heterogeneous network self-organizing network. The method comprises the following steps: a home base station in a residential quarter obtaining a corresponding adjacent jamming list according to a jammed condition of all users; the home base station in the residential quarter obtaining an initial sub-channel allocation according to a new utility function; the home base station in the residential quarter performing cooperative sub-channel allocation to the determined initial sub-channel allocation based on respective adjacent jamming list; the home base station in the residential quarter performing power allocation according to new utility function after determining the sub-channel allocation, and a macro base station performing non-uniform pricing on each sub-channel. The same-layer jamming between the home base stations can be effectively reduced, the QoS requirement of a macro user on each sub-channel can be effectively guaranteed, thereby effectively reducing the cross-layer jamming of the home base station to the macro user.

Description

technical field [0001] The invention belongs to the technical field of self-organizing networks of heterogeneous networks, and relates to a distributed energy-saving resource allocation method of heterogeneous networks. Background technique [0002] In order to meet the demand for ever-increasing data transmission rate and greater coverage, under the requirement of constantly improving network performance, a heterogeneous network (Heterogeneous Network, Hetnet) technology emerges as the times require. There are many different types of network nodes in the heterogeneous network. Different from the traditional single-layer cellular network, the inter-layer interference and intra-layer interference in the heterogeneous network bring greater challenges. In a traditional network deployed by an operator, such as a macro cell and a relay, interference can be eliminated through a frequency reuse scheme (for example, frequency planning of a relay link and a direct link). However, th...

Claims

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Application Information

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IPC IPC(8): H04W72/08
CPCY02D30/70
Inventor 唐伦刘世超许娟雄冉启飞韩洁陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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