Frequency domain resource distribution method based on graph coloring in ultra-dense network

An ultra-dense network and frequency-domain resource technology, applied in the field of heterogeneous network interference coordination, can solve the problems of not improving resource utilization, and achieve the goal of improving resource utilization, taking into account fairness, and improving the total throughput of the system Effect

Active Publication Date: 2015-07-22
上海瀚芯实业发展合伙企业(有限合伙)
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Problems solved by technology

Generally, traditional graph coloring algorithms only color each vertex with one color, which does not improve resource utilization very well.

Method used

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  • Frequency domain resource distribution method based on graph coloring in ultra-dense network
  • Frequency domain resource distribution method based on graph coloring in ultra-dense network
  • Frequency domain resource distribution method based on graph coloring in ultra-dense network

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings.

[0046] A frequency domain resource allocation method based on graph coloring in an ultra-dense network, characterized in that the method comprises the following steps:

[0047] 1) According to the received reference signal received power information, each user calculates the reference signal received power difference between every two adjacent small stations and the serving small station, and the threshold value R th Compare, determine the interfering small station, and report the test results of the interfering small station to the network side;

[0048] The threshold Rth is the difference threshold between the reference signal received power of the user's serving small cell and the reference signal received power of the interfering small cell;

[0049] 2) The network side constructs an interference relationship diagram between the test result information of the inte...

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Abstract

The invention discloses a frequency domain resource distribution method based on graph coloring in an ultra-dense network. The frequency domain resource distribution method comprises the following steps: reflecting a disturbed condition between small stations by utilizing a disturbance relationship graph; and coloring the disturbance relationship graph by utilizing a multiplexing algorithm based on a conventional graph coloring Brelaz algorithm, and distributing sub-band for each user according to the coloring results, thereby achieving a purpose of reducing the disturbance between the small stations. The method disclosed by the invention can be used for remarkably reducing the disturbance between the small stations, so that the total throughput and edge throughput of the system are increased.

Description

technical field [0001] The invention relates to the technical field of heterogeneous network interference coordination, in particular to a frequency domain resource allocation method based on graph coloring in an ultra-dense network. Background technique [0002] In recent years, with the popularization and popularity of smart phones and other emerging mobile user equipment (User Equipment, UE), the usage of mobile data services is increasing exponentially every year. It is estimated that in the next ten years, the mobile data service will expand to 1000 times of the current one, and the wireless communication network will face a bigger challenge. In order to meet the increasing service demands of users, LTE-A (LTE-Advanced) emerges as the times require. [0003] One way to dramatically increase the capacity of wireless networks is to increase spectral efficiency. The LTE-A heterogeneous network technology is based on this idea. Its basic idea is to deploy low power nodes ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10
CPCH04W16/10
Inventor 潘志文谈冬晖刘楠尤肖虎
Owner 上海瀚芯实业发展合伙企业(有限合伙)
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