| 摘要: |
| 为提高电信网设备应对异常信令访问的检测能力，需对64K信令进行分析并处理。为了提高解析效率并满足近年来相关产品对自主可控越来越高的要求，设计了一种基于国产现场可编程门阵列（Field Programmable Gate Array，FPGA）的信令解析方案，给出了方案的总体设计思路，并对FPGA实现的功能模块进行详细说明。对系统进行设计时，采用模块化参数化方法以及在关键环节添加状态参数，提高了可扩展性并可以对模块内部运行状态进行监控，最终实现了对信令高效且灵活的解析，主要器件等均为国产。经过测试，可以实现STM-1(STM-Synchronous Transfer Module-1)数据的接入、串并转换、HDLC（High-level Data Link Control）解帧等功能，完成32路64K信令的并发处理，模块运行状态可查可看，达到了预期的效果。以STM-1为例，基于现有功能的模块化设计，可以平滑地扩展到STM-4、STM-16的应用。 |
| 关键词: 移动通信网 电路交换 64K信令 国产FPGA 模块化参数化设计 |
| DOI：10.20079/j.issn.1001-893x.230601001 |
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| 基金项目:河南省重大科技专项（221100210100） |
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| Design and Implementation of Signaling in Mobile Communication Network Based on Domestic FPGA |
| LI Jingyan,HE Zanyuan,CHEN Hongchang,GONG Xiaorui,CHEN Yunjie |
| (1.School of Cyber Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;2.Information Technology Institute,PLA Strategic Support Force Information Engineering University,Zhengzhou 450002,China) |
| Abstract: |
| In order to improve the detection capability of telecom network equipment for abnormal signaling access,it is necessary to analyze and process the 64K signaling.To improve the parsing efficiency and meet the increasing demand for self-controllable capabilities in recent years,a signal parsing solution based on domestic field programmable gate array(FPGA) is proposed.The overall design idea of the scheme is presented,and the functional modules implemented by FPGA are described in detail.Module-parameterization method is adopted in the system design,and state parameters are added to the critical link to improve the scalability of the system and enable monitoring of the internal running status of the module.Finally,efficient and flexible parsing of signals is achieved using the domestic main components.Through testing,the system achieves the desired effect of accessing STM-Synchronous Transfer Module-1 (STM-1) data,converting serial data to parallel,parsing the high-level data link control (HDLC) frame,and completing concurrent processing of 32 channels of 64K signaling.Besides,the status of module running can be easily monitored.Taking STM-1 as an example, based on the existing functions and modular design,the system can be smoothly extended to STM-4 and STM-16 applications. |
| Key words: mobile communication network circuit switching 64K signaling domestic FPGA modular parameterized design |
