Three-dimensional layered layout method of mobile communication network based on 4/5G high frequency band

Abstract

The invention relates to a three-dimensional layered layout method of a mobile communication network based on a 4 / 5G high frequency band, and belongs to the technical field of mobile communication. According to the characteristics of modern urban structure, this method decomposes the coverage area of ​​the mobile communication base station system into three-dimensional grids from the horizontal and vertical planes, and based on the characteristics of line-of-sight propagation of wireless signals in the 4 / 5G network frequency band, The three-dimensional grid is used to distinguish scenes, and finally merge the same continuous scenes to formulate the construction of urban wide coverage network architecture, and based on this, to design customized coverage methods for discontinuous scenes, so that the overall coverage scheme can be accurate to the inside of the block The meticulous grid minimizes the network coverage investment, minimizes the interference caused by overlapping coverage, and maximizes the carrier-to-interference ratio performance of the entire urban network.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a three-dimensional layered layout method of a mobile communication network based on a 4 / 5G high frequency band. Background technique [0002] In recent years, the mobile communication network in the city has undergone tremendous changes both in terms of urban structure and communication network, which has resulted in the traditional cell planning theory of mobile communication network being no longer suitable. [0003] First, with the continuous acceleration of urbanization, the architectural composition and structure of modern cities have undergone great changes. With the background of fully considering the efficiency of various urban functions, the characteristics of modern city blocks have become increasingly prominent. [0004] Second, in the field of mobile communications, with the upgrading of technology and the continuous evolution of the network,...

AI Technical Summary

Problems solved by technology

[0008] However, in the development process of modern cities, there are more and more high-rise buildings, urban blocks are becoming more and more obvious, and there are more and more local traffic hotspots. In addition, with the expansion of urban areas, the terrain of urban areas has greater fluctuations. , the traditional mobile communication network structure is becoming more and more difficult to guarantee, so that in order to meet the coverage requirements of the network, the setting of the base station site is forced to become an on-demand setting rather than a structured setting. The communication network has obvious defects in the following aspects:

[0009] 1. The increase of unstructured base stations has led to the emergence of high-overlapping coverage areas in many local areas. The interference in the network in these areas continues to increase, and the difficulty of network optimization continues to increase;

[0010] 2. The resource utilization efficiency of the base station is uneven, and the expansion of network resources in hotspot areas is facing difficulties, while the network resources in non-hotspot areas are extremely surplus

This problem caused by the difference in resource utilization is actually a main reason for the low efficiency of network operations. For operators with relatively weak operating scales, this problem is the key to determining their profitability;

[0011] 3. The network structure of the full-scenario cellular structure base station has led to more and more deep coverage blind spots and high-rise building "coverage islands" in the modern urban network. In the 4 / 5G era, the demand for data services is large and the frequency band is high. , this network structure has gradually become a network obstacle for the promotion of emerging services such as mobile data services and Internet of Things services. If it cannot be resolved, it will definitely affect my country's informatization process strategy

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