Method of separable reset of communication and chain type far-end radio frequency unit business

Abstract

The invention discloses a chain remote radio frequency unit service and a separable and reducible communication method, and is carried out according to the following procedures: an operation state of a remote radio frequency unit RRU is monitored by a base station; if a service fault exists only in the remote radio frequency unit, a CPU of the remote radio frequency unit is separately reset, and the initiation of the CPU resource is carried out; if a communication fault exists only in the remote radio frequency unit, a communication module, positioned on a hardware logic of the remote radio frequency unit and used for communicating with a baseband unit, is separately reset and is loaded with a logic. The adoption of the method can effectively reduce influences from the operation of a reset of the whole RRU on the communication and service of RRU and influences from the communication between the concatenated RRU and BBU; meanwhile, traditional resetting methods are compatible; on the premise of improving the strength, maintainability, compatibility and stability of a system of the basic station, a new means of debugging the hardware and positioning a problem can also be provided.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to a method for separably resetting chain-type remote radio frequency unit business and communication in a split-type base station system. Background technique [0002] In order to reduce the occupied area of ​​the base station system, reduce operating costs and improve the reliability of the base station system, the split base station system combines a base band unit (Base Band Unit, referred to as "BBU") and a remote radio unit (Remote Radio Unit, referred to as "RRU") ) are separated, and the BBU is connected to the RRU through long-distance transmission means such as optical fiber. The commonly used topology of the split base station system is that multiple RRUs form a chain network and connect to the BBU, that is, as figure 1 The typical application scenario of the networking mode shown is an area with a large area and a small number of users, such as a highway....

AI Technical Summary

Problems solved by technology

If the existing reset method is used to reset the RRU, not only the RRU service will be interrupted, but also the logic of the RRU will also fail, resulting in the interruption of the communication between the RRU and the BBU

In particular, in the case of RRU chain networking, using the traditional reset method to reset the RRU will cause the communication between all RRUs and BBUs connected to this RRU to be interrupted, which will cause a large area of ​​​​the network to be paralyzed.

Images