Base station fault detection method

Abstract

The invention provides a base station fault detection method. In the method, by periodically executing online detection on an uplink pilot time slot (UpPTS) signal loop, namely, detecting whether the processes that the uplink synchronous signals on the UpPTS routes from a RRU to an uplink synchronous detection module for detection via data routing and the uplink synchronous detection module submits the detection result to a layer 1 baseband processing module, are regular, the currently happed random access fault can be known in time under a condition of having no influence on the regular services and having very small influence on the system load.

Description

technical field [0001] The invention relates to a fault detection technology in a mobile communication system, in particular to a base station fault detection method during random access. Background technique [0002] In an existing mobile communication system, the part related to random access in a base station (NodeB) mainly includes: an antenna, a remote radio unit (RRU) and a baseband processing unit (BBU). Among them, the relevant modules in the BBU are a data routing module, an uplink synchronization detection module, a layer 1 (L1) baseband processing module and an operation management module. When the user equipment (UE) randomly accesses, one of the uplink synchronization codes (SYNCUL code) 0 to 7 of the cell where it is located is randomly selected to be sent in the uplink synchronization time slot (UpPTS), and each antenna of the cell corresponds to a channel. The received signal is transmitted by the feeder to the connected RRU for processing. The RRU transmits...

AI Technical Summary

Problems solved by technology

[0003] In the existing TD-SCDMA network, due to the failure of the antenna, RRU, the interface between the RRU and the BBU (Interface between the RRU and the BBU, Ir) and the detection of the uplink synchronization (SYNC-UL) signal of the BBU, the UE will randomly connect to the network. When the SYNC UL signal is entered, the NodeB cannot detect the SYNC UL signal, resulting in the failure of the UE to access

At this time, since the NodeB cannot distinguish whether there is no user access or an access failure, the failure alarm cannot be timely

That is to say, the existing system cannot be informed of access failures on the network side in a timely manner

[0004] At present, after the user complains because he cannot make a call, the system maintenance personnel can locate the problem through on-site investigation

Since the normal business needs to be suspended at this time, and the base station needs to enter the debugging mode, it will affect the normal operation of the system and the normal progress of the user business

Images