Base station fault detection method

A detection method and fault detection technology, applied in electrical components, wireless communication, etc., can solve problems such as failure to know network access failures in time, alarms, and NodeB's failure to detect SYNCUL signals.

Inactive Publication Date: 2012-07-11
TD TECH COMM TECH LTD
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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

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Embodiment Construction

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] The core idea of ​​the present invention is: the operation management module in the base station triggers periodic detection of each active channel group in all currently activated cells on the BBU, and the uplink synchronization signal on the UpPTS time slot will be detected every time. The RRU is routed to the uplink synchronization detection module for detection through data routing, and the uplink synchronization detection module submits the detection result to the layer 1 baseband processing module to detect whether these processes are normal. In this way, the currently occurring random access failure can be learned in time.

[0020] figure 1 It is a schematic diagram of a single detection process in Embodiment 1 of the prese...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04
Inventor 江森佟学俭袁乃华
Owner TD TECH COMM TECH LTD
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