A fronthaul network, data transmission method and device

Abstract

The invention is applicable to the field of communication networks, and provides a fronthaul network, a data transmission method and a device. The fronthaul network includes an optical fiber line terminal arranged between the distributed unit and the active antenna, and the optical fiber line terminal includes a data packet analysis unit and a first reconfigurable unit; the data packet analysis unit is used to obtain the destination address of the service data; the first The reconfigurable unit includes a first transmission channel, and the first transmission channel is used for: coupling multiple service data together for transmission, selecting service data with the same destination address among the multiple service data, and transferring service data with the same destination address The data is sent to the corresponding active antenna processing unit. In this solution, by setting the optical fiber line terminal between the distributed unit and the active antenna processing unit, when it is necessary to transmit multiple business data at the same time, multiple business data can be coupled together for transmission, and then transmitted separately according to the destination address to avoid The cache waiting is eliminated, and the data transmission efficiency in the fronthaul network is improved.

Description

technical field [0001] The invention belongs to the technical field of communication networks, and in particular relates to a fronthaul network, a data transmission method and a device. Background technique [0002] The access network (RAN) architecture of 5G includes a Central Unit (CU), a Distributed Unit (DU), and an Active Antenna Processing Unit (AAU). Among them, the CU is connected to the core network through the backhaul network, and is a general-purpose device that can be cloudified and can handle non-real-time services; DU is a dedicated device that is difficult to cloud, and can handle real-time services; AUU is responsible for radio frequency processing functions; AUU and DU The traffic transmission between them is called fronthaul. [0003] In the existing 5G fronthaul network, the AUU and the DU are generally connected through a common radio public interface (CPRI, CommonPublic Radio Interface) interface, and each distributed unit in the existing fronthaul net...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a fronthaul network, which aims to solve the problem that in the existing fronthaul network structure, when multiple service data need to be transmitted to the active antenna processing unit, the multiple service data can only be buffered in the DU first. Then sort and transmit in sequence, it is easy to cause delay, and the technical problem of poor network transmission effect

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