Annular network configuring system for distributed base station and data interactive method

Abstract

Main multiplexing and demultiplexing module and standby multiplexing and demultiplexing module in use for wavelength division multiplexing of optical signal in multiple wavelength are setup at side of controller in radio frequency module in system. Wavelength division multiplexing ring network system is composed of controller in radio frequency module and more than one radio frequency module loops connected through two optical fiber links in opposite direction. The invention also discloses data interaction method for ring net system based on distribution type base stations. Data are transmitted at both direction of wavelength division multiplexing ring westwards and eastwards. Use ratio of wavelength is raised. Features are: simplified complexity degree of system, raised reliability of network caused by natural repaired rearranging protection mechanism.

Description

technical field [0001] The invention relates to base station networking technology in a wireless communication system, in particular to a distributed base station ring networking system and a data interaction method thereof. Background technique [0002] In the third generation mobile communication (3G) product development, the industry has proposed the concept of separating the baseband part and the radio frequency part of the base station structurally and even geographically. In this base station form, the radio frequency part is generally a radio frequency module (RE, Radio Equipment). Since the radio frequency control is generally in the baseband part, the radio frequency control and the baseband part are collectively called a radio frequency module controller (REC, Radio Equipment Controller). One REC can have one or more REs to form a distributed base station. In a distributed base station, REs and RECs can be placed together, or the REs can be separated by means of o...

AI Technical Summary

Problems solved by technology

[0012] In the existing technical solution, since for each RE ring, the OADM is required to receive and transmit at least two optical signals of different wavelengths from the east direction and the west direction, the wavelength utilization rate is low, more wavelength resources are occupied, and too many Wavelength optical signal processing will also increase the complexity of network equipment and systems

In addition, ordinary optical signals are used to connect REC and OTU, RE and OADM. CWDM modules such as OTU and OADM also need to convert ordinary optical signals to CWDM standard wavelengths. The implementation is more complicated and the equipment cost is relatively high.

Images