General public radio interface data transmission method and its device and system

Abstract

The method thereof comprises: after the sending end converts the CPRI data into the frames adaptive to Ethernet transmission, it transmits the converted frames on the Ethernet; the receiving end receives the converted frames through Ethernet, and restores the converted frames into CPRI frames to get CPRI data. Before transmitting the CPRI data of one data packet, the frame head is firstly transmitted through IQ bandwidth; in the gaps of transmitting different data packets, the inter-frame gap is transmitted by using IQ bandwidth.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to the general public wireless interface data transmission technology. Background technique [0002] The Common Public Radio Interface (CPRI for short) is a specification about the internal key interface of a mobile communication wireless base station publicly published by a number of industry cooperation companies. The CPRI specification is a public specification on this key interface in the industry, providing a set of common standards for key internal interfaces of base stations. The CPRI is responsible for defining the key internal interface of the wireless base station between a radio equipment controller (Radio Equipment Controller, "REC" for short) and a radio equipment (Radio Equipment, "RE" for short). The goal of the standard is to create an open market for cellular base stations, thereby substantially reducing the large development effort and expensive costs that ha...

AI Technical Summary

Problems solved by technology

[0011] Although the CPRI data transmission between the main base station and the RRU can be realized through optical fiber extension, it is required to use optical modules when the equipment is connected, so the equipment cost is high, especially for short-distance transmission, the laying cost is high and the construction is difficult.

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