Front transmission method and front transmission system based on 5G network

Abstract

The embodiment of the invention relates to the technical field of communication, and discloses a forward transmission method and a forward transmission system based on a 5G network, and the method comprises the steps that AAUs send respective first radio frequency signals to corresponding first color light modules; each first color light module processes the first radio frequency signal to obtain a corresponding first light signal; each first color light module sends a first optical signal to a first combiner; the first combiner couples a composite first optical signal obtained by combining the first optical signals into the same optical fiber and transmits the composite first optical signal to the first wave separator; the first wave separator processes the composite first optical signal to obtain each first optical signal; the first wave separator sends the first optical signals to the second color light modules; each second color light module processes each first light signal to obtain a first radio frequency signal corresponding to each first light signal; and each second color light module sends the first radio frequency signal to the DU. According to the embodiment of the invention, a plurality of signals can be transmitted by using one fiber core.

Description

technical field [0001] The embodiment of the present invention relates to the field of communication technologies, and in particular to a 5G network-based fronthaul method and a fronthaul system. Background technique [0002] With the development of the fifth generation mobile communication system (5G), the density of base station deployment is increasing, and the deployment locations between base stations are getting closer. In response to the need for deep coverage of 5G communication network base stations, the original network architecture has also undergone adaptive changes. In the 5G communication network architecture, signals are transmitted between the active antenna unit (active antenna unit, AAU), distributed unit (distributed unit, DU), central unit (central unit, CU) and core network. Taking a slicing packet network (SPN) as an example, in this architecture, AAU and DU constitute a fronthaul network. In the fronthaul network, the AAU and DU are remote through op...

AI Technical Summary

Problems solved by technology

[0003] Due to the dense networking of 5G base stations, the consumption of optical cables increases

When the traditional optical fiber direct drive signal transmission method is applied to the fronthaul network, there are problems of large fiber core resources and insufficient fiber core resources.

Images