Method and system for transporting service in RRU loop network

Abstract

The invention discloses a method and a system for transporting service in an RRU loop network. The system is used to ensure that the service drops no words and to improve the quality of the service. The method for transporting service in the RRU loop network is that a base station BBU and an RRU adopts a first service channel connected with the BBU from the first optical interface of the BBU to transport the service; and when faults occur in the first service channel, the BBU and the RRU utilizes the configuration parameters of the first service channel to switch the present proceeding service from the first service channel to a second service channel connected with the BBU from the second optical interface of the BBU to continuously transport the service.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a service transmission method and system in a remote radio frequency module (RRU, Remote Radio Unit) ring networking. Background technique [0002] In the TD-SCDMA remote baseband system, the base station (BBU) and the RRU are usually connected by optical fibers. Such as figure 1 As shown, in some application scenarios, multi-level RRUs and BBUs will be connected in series using RRUs in series to realize serial service channels. Therefore, if the fiber used to connect multi-level RRUs fails for some reason, it must As a result, some RRUs cannot communicate with the BBU. [0003] In order to solve the above problems, the concept of RRU ring networking is proposed in the Ir interface (interface between BBU and RRU) technology, that is, each RRU can access the BBU from two service channels in different directions. After a service channel fails, it can be switch...

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Problems solved by technology

[0009] It can be seen that the total time required for the above four items is accumulated, the entire time required in the soft reset mode is about 25s, and the entire time required in the hard reset mode is greater than 1 minute, that is to say, no matter which In general RRU ring networking technology, the time required from the service channel failure to the re-use of another service channel to restore the service cannot meet the tolerance time of service drop, so it will lead to service call drop

[0010] To sum up, in the case of RRU ring networking in the existing technology, after the service channel currently in use fails, the RRU needs to be restarted, reconnect to the BBU from another service channel, and reconfigure the relevant parameters. The whole process The required time exceeds the tolerance time of service call drop, resulting in service call drop

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