System and method for detecting base-station NodeB

Abstract

This system and this method are used to test the processing ability and stability of the Uu interface and the Iub interface. Uu connects NodeB baseband board (NBB) with the user device while Iub connects NBB with the analog base station controller (ABC). This system consists of the analog user device module (AUD), the NodeB test board of analog Uu interface (NT), the console and ABC. AUD generates the up-going I / Q data (UIQ) and analyses the down-going I / Q data (DIQ). NT fetches UIQ, sends UIQ to NBB and collects DIQ of NBB. The console connects to ABC and controls the test started / stopped via the mutual info. ABC interchanges control messages with NBB, the console and AUD. It also realizes to transfer, process and analyze the user face data and the control face data of Iub interface.

Description

technical field [0001] The invention relates to a WCDMA system in the communication field, in particular to a test system and method for a base station (NodeB). Background technique [0002] The whole WCDMA system is composed of four parts: base station (NodeB) 122, base station controller RNC (Radio Network Controller) 121, core network CN (Core Network) 110 and user equipment UE (User Equipment) 130, such as figure 1 shown. [0003] The radio access network of the WCDMA system is composed of one or more RNS (Radio Network Subsystem) 120, and each RNS 120 includes one RNC 121 and one or more NodeBs (similar to base stations in GSM) 122 . One Node B 122 can support one or more cells, and each cell can support one or more carriers. The function of each component is described in detail as follows [0004] RNC121 is the control part of RNS120, responsible for the management of various interfaces, as well as the management of wireless resources and wireless parameters. The m...

AI Technical Summary

Problems solved by technology

[0017] 1. After the deployment, the abnormality of NodeB may cause some users to be unable to access, the quality of voice and graphics is poor, or cause the NodeB to be paralyzed and stop working.

[0018] 2. Real environment testing requires a full set of RNC and CN equipment, as well as a large number of WCDMA mobile phones, many maintenance personnel, and high cost of personnel and materials

[0019] 3. Real environment testing, it is difficult to run and find errors fully automatically, and it is difficult to accurately detect call loss, performance anomalies, and functional anomalies at any time, and these functions are crucial to system research, and It cannot automatically stop the test when an abnormality occurs, automatically locate the fault, and protect the site

[0020] 4. It is difficult to achieve high-strength impact test in real environment test

The impact test is small, and the cycle for reproducing field problems is long

[0021] 5. In the real environment test, due to the uncontrollable input, the output is unpredictable, and it leads to a series of problems such as irreversibility;

[0022] 6. If developing and testing UE, including the development of software and hardware, it must comply with the requirements of the 3GPP agreement, the cost of development, production, use and maintenance is high, and the stability is poor

[0023] The industry needs to find new test solutions that are not too complex to be implemented, but can solve all the above problems

Images