4G private network cell interference coordination method for electric power transmission scene

Abstract

The invention provides a 4G private network cell interference coordination method for an electric power transmission scene. The 4G private network cell interference coordination method comprises the steps that: (1) a base station in a 4G private network architecture performs diversity initialization on available frequency resources; (2) the base station obtains channel conditions of communication channels between the base station and a service terminal, and analyzes causes and types of interference; (3) and a corresponding coordination method is selected according to the interference type through combining the available resources and service requirements. A frequency subset in the interference coordination method provided by the invention is partitioned by adopting a dynamic partitioning method, the frequency utilization rate is improved, and the communication channel quality is ensured.

Description

technical field [0001] The present invention relates to a cell interference coordination method, in particular to a 4G private network cell interference coordination method for power transmission scenarios. Background technique [0002] As a new wireless access technology, the long-term evolution technology of LTE (LongTerm Evolution) universal mobile communication technology has the characteristics of lower transmission delay, higher transmission rate, increased system capacity, enhanced network coverage, and optimized network architecture. It has been widely deployed and applied at home and abroad. At present, operators in hundreds of countries have constructed and deployed more than 200 LTE networks. LTE has become the mainstream of global 4G development. In China, the three major network operators have deployed and commercialized LTE networks. Based on LTE's technical advantages such as high speed, high bandwidth, and high spectrum utilization, 4G private networks have ...

AI Technical Summary

Problems solved by technology

However, the main disadvantage of this technology is that the frequency resources at the edge of the cell are limited, which affects the peak rate at the edge of the cell and the overall capacity of the system.

Among them, soft frequency reuse, as a key technology for interference coordination, has been widely used. Its main idea is to reserve protected and unprotected frequency bands. The protected frequency bands of adjacent cells are staggered, and the reserved method can ensure the reduction of interference. , but lacks the flexibility

[0005] For the electric power industry, its network service characteristics are different from those of the 4G public network, mainly in the following aspects: electric power services are mostly fixed services, and there are only a small number of mobile application scenarios (line inspection, etc.); business transmission There is no need for multiple users to be online at the same time, and data transmission is periodic; there are few frequency bands available for power, and the authorized frequency bands that can be applied for are generally around a few M. Using the reserved method, the frequency band utilization efficiency is not high; the network coverage of the public network is cellular. The soft multiplexing method is adopted, and the frequency multiplexing factor is 3, while the network structure of the power transmission network is chain-like, which not only causes inter-cell interference, but also reduces spectrum utilization

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