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Spectrum resource optimization method of distributed base station architecture

A technology of distributed base stations and spectrum resources, applied in the field of mobile communication networks, can solve the problems of waste of spectrum resources, algorithms need to be optimized, and the bandwidth allocation of adjacent small base stations is not fully utilized, so as to improve system performance and optimize resource allocation. Effect

Active Publication Date: 2015-07-15
CERTUS NETWORK TECHNANJING
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Problems solved by technology

When the load is constantly changing, such a fixed deployment will inevitably cause a lot of waste of spectrum resources
Zhao Linjing and Ni Wei proposed an algorithm that uses the knowledge of graph theory to allocate the number of sub-channels. Ni Wei also proposed an adaptive system architecture based on distributed base stations. This algorithm improves system performance while avoiding interference. , but does not make full use of the bandwidth allocation of adjacent small base stations, the algorithm needs to be optimized

Method used

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  • Spectrum resource optimization method of distributed base station architecture
  • Spectrum resource optimization method of distributed base station architecture
  • Spectrum resource optimization method of distributed base station architecture

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Embodiment Construction

[0031] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] Such as Figure 1-3 As shown, the present invention proposes an improved method for interference handling based on distributed small base stations in a heterogeneous network. This method can dynamically allocate resources and balance loads according to service distribution. The knowledge of graph theory is used here. However, with the increase of business volume, the insufficient system bandwidth or the number of BBUs will lead to the unsatisfied bandwidth demand of the SCN, and the ratio of the allocated bandwidth to the required bandwidth (namely: satisfaction) will decrease, which can be fully considered. The bandwidth allocation of adjacent small base stations, seeking more available bandwidth to optimize and improve satisfaction, the details are as follows:

[0033] Step 1: According to the network topology of the small base station, combined with the kn...

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Abstract

The invention discloses a spectrum resource optimization method of a distributed base station architecture. According to the method, when a system change number (SCN) bandwidth demand is not satisfied, bandwidth allocation conditions of adjacent small base stations are taken into full consideration; according to service distribution conditions, resources are allocated dynamically, and a baseband processing unit and a small base station node are reasonably connected, so that the satisfaction of each small base station node is improved. The invention provides a method for assisting the bandwidth through a macro eNodeB. A part of the bandwidth of the macro eNodeB is allocated for small base stations with poor satisfaction in the coverage area of the macro eNodeB, so as to improve the system performance.

Description

technical field [0001] The invention relates to the technical field of mobile communication networks, in particular to a spectrum resource optimization method for a distributed base station architecture in a heterogeneous network. Background technique [0002] At present, with the rapid development of the mobile Internet, data service traffic increases rapidly. It is predicted that the growth rate will exceed 500 times in the past 10 years, and the proportion of business volume in indoor and hotspot areas will reach 70%. However, the traditional macro base station deployment method can no longer meet the growing demand of data services, so building a heterogeneous network by deploying more small base stations has gradually become an important measure to solve this problem. [0003] As a low-power wireless access node, small base stations have attracted extensive attention from major manufacturers due to their small size, high integration, and strong adaptability. Compared ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W72/04
CPCH04W16/10H04W28/20
Inventor 董育宁李进
Owner CERTUS NETWORK TECHNANJING