A wireless network coverage backup method and device

Abstract

The invention provides a wireless network coverage backup method and device which adopts a manner of RRU mutual backup between nearby base stations to realize the network coverage backup. During a backup process, a site does not need to be encrypted, a business does not need to be interrupted and a double frequency spectrum requirement of a double network is not needed. Therefore, a lot of problems in the existing wireless network coverage backup method can be effectively conquered by the present invention of the wireless network coverage backup method and device.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a wireless network coverage backup method and device. Background technique [0002] Different from public communication networks, enterprise networks are mostly directly related to the production and operation of enterprises, and even related to the safety of life and property. They have higher requirements for network reliability, and require that when network element equipment fails, it will have little or no impact on business. , so redundant backup of wireless network coverage is required. [0003] Currently, there are two commonly used wireless network coverage backup methods: single-network interleaving and dual-network with same coverage. [0004] figure 1 It is a schematic diagram of single-network interweaving, as shown in the figure, and its realization principle is mainly as follows: add a station between the two stations that can realize continuous coverage (the ...

AI Technical Summary

Problems solved by technology

[0006] Encrypted sites are required in the single-network interweaving backup solution, which will lead to the following problems: double the number of sites, difficult site selection and high site construction costs; dense sites, more serious interference; dense sites, more frequent switching, affecting Switch call drop performance; in special scenarios, such as leaky cable coverage, the number of times to cut the leaky cable is doubled; the distance between stations is shortened to half of the coverage capacity, and the cell is too small, which leads to the distinction between the center and the edge of the cell by inter-cell interference coordination (ICIC) The algorithm is not easy to apply

[0007] However, there are two main problems in the same-coverage dual-network backup solution. One is that when a network element fails, the service will be interrupted. The network works at the same time, in order to avoid interference, the frequency must be different, which requires twice the frequency resources, such as 10MHz working bandwidth, requires 20MHz spectrum, which is generally difficult to meet

[0008] It can be seen that the existing wireless network coverage backup methods have many problems caused by encrypted sites or the need to interrupt services and the need for frequency resources.

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