基于数据和知识的5G网络故障诊断方法

doi:10.11959/j.issn.1000-0801.2023257

Abstract

Abstract:

Aiming at the low accuracy and operation and maintenance efficiency of existing 5G network fault diagnosis, a 5G network fault diagnosis algorithm based on data and knowledge was proposed.Firstly, the graph convolutional network (GCN) model was used to train the 5G network fault data set, and the fault diagnosis model was obtained.Then, a 5G network fault knowledge graph (KG) was constructed through knowledge integration, knowledge extraction, knowledge fusion and representation of multi-source data sources.Finally, by using knowledge graph to analyze the output results of fault diagnosis model, fault report could be generated, and the interpretability of fault diagnosis model output could be improved.The proposed method provides a new accurate and efficient solution for 5G network fault diagnosis, and the experiment shows that the accuracy of the fault model reaches 95%.In addition, the 5G network fault knowledge map can provide support for operations and maintenance personnel to help them analyze the causes of failures.

Key words: 5G, GCN, KG, fault diagnosis, knowledge extraction

CLC Number:

TN929

Qingya PAN, Heng ZHANG, Wenjie LIU, Xiaorong ZHU. Fault diagnosis method for 5G networks based on data and knowledge[J]. Telecommunications Science, 2023, 39(12): 53-64.

Figures/Tables 14

References 20

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KPI参数	符号
切换成功率	HO（handover success rate）
切换时延	HO_d（handoff delay）
掉话率	DCR（dropped call rate）
小区上行平均吞吐量	CUAT（cell uplink average throughput）
小区下行平均吞吐量	CDAT（cell downlink average throughput）
参考信号接收功率	RSRP（reference signal receiving power）
上行丢包率	PD_UL（packet drop_uplink）
下行丢包率	PD_DL（packet drop_downlink）
上行信噪比	SNR_UL（signal noise ratio_uplink）
下行信噪比	SNR_DL（signal noise ratio_downlink）
无线资源控制连接建立成功率	RRC（radio resource control）
演进无线接入承载建立成功率	E-RAB（evolved radio access bearer）
节点传入平均吞吐量	LT(input)（link throughput(input)）
节点传出平均吞吐量	LT(output)（link throughput(output)）
链路误码率	LER（link bit error rate）

数据来源	数据类型	选用内容
专家知识文档	结构化	常见故障、故障内容、故障原因、故障解决方法
百科知识文本	半结构化	故障名称、故障现象、故障原因、故障解决方法
专业书籍文本	非结构化	故障类型、故障描述、故障原因、故障解决方法

仿真参数	宏基站	微基站
基站数目	3	15
用户数目	20/基站	10/基站
传输功率/dBm	46	30
阴影衰落差/dB	8	10
天线增益/dBi	15	8
用户分布	随机分布	随机分布

故障类型	数量/个	故障类型	数量/个
正常情况	1 420	覆盖空洞	496
上行干扰	175	空口故障	496
下行干扰	175	基站故障	496

字	标注	字	标注	字	标注
信	B-N	种	O	碍	I-C
号	I-N	原	B-R	物	I-C
强	I-N	因	I-R	。	O
度	I-N	是	O	在	O
不	I-N	环	O	无	O
足	I-N	境	O	线	O
还	O	中	O	网	O
有	O	有	O	络	O
一	O	障	B-C	环	O

Fault diagnosis method for 5G networks based on data and knowledge

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