FDD-LTE different-frequency networking method based on frequency migration

Abstract

An FDD-LTE different-frequency networking method based on frequency migration comprises the following steps: (1) determining the frequency bandwidth of FDD-LTE wireless communication network configuration to be 1.4-20MHz, and defining the center frequency point and bandwidth of each base station in the whole available frequency bandwidth range to make the difference between the center frequency points of two adjacent base stations be from 930KHz to (available bandwidth-930)KHz; (2) defining a cell measurement and switching judgment algorithm; (3) wirelessly optimizing and adjusting the different-frequency regional coverage; and (4) defining switching parameters and the like. According to the invention, adjacent base stations are made to work at different frequencies through frequency migration, mutual interference brought by working at the same frequency is eliminated, the frequency reuse density is improved by use of frequency offset and frequency reuse technologies, and the purpose of establishing an FDD-LTE different-frequency wireless communication network in which cell switching and reselection are easier to control is achieved under the condition of limited frequency resources. Practice proves that an FDD-LTE different-frequency wireless communication network built by the FDD-LTE different-frequency networking method based on frequency migration can effectively improve the use experience of actual users.

Description

technical field [0001] The invention relates to an FDD-LTE wireless communication network networking technology, in particular to an FDD-LTE inter-frequency networking method based on frequency migration. Background technique [0002] For wireless communication networks, frequency resources are an important foundation, and the essence of wireless access technology development is to exchange larger frequency bandwidths for higher peak rates. In the current FDD-LTE wireless communication network, the frequency resources allocated by the Ministry of Industry and Information Technology are very limited, so the same-frequency networking technology solution is adopted, and the frequency reuse degree is 1. When the network is used in indoor distribution, high-speed rail and other scenarios, the same-frequency interference It is very serious and difficult to control. Not only will there be dropped calls and network speed drops, but even the phenomenon of being unable to access the n...

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Problems solved by technology

[0003] The present invention aims at the problem that the adjacent base stations in different scenarios of the existing FDD-LTE wireless communication network have serious mutual interference caused by the same frequency and is not easy to control, and proposes a FDD-LTE inter-frequency networking based on frequency migration The method uses frequency migration to make adjacent base stations work at different frequencies, eliminates mutual interference caused by the same frequency, and then uses frequency offset frequency multiplexing technology to improve frequency multiplexing, thereby achieving the use of limited frequency resources to establish a cell The purpose of FDD-LTE inter-frequency wireless communication network with better control of handover and reselection

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