GSM网络CQT系统研究及应用
摘要
随着移动通信网络的飞速发展,新业务不断涌现。无线移动通信系统为用户提供越来越多的数据、图像、视频等多媒体业务信息。用户规模不断扩大,移动通信网络的承载能力和服务能力面临着新的考验。尤其是在向3G演变的过程中,网络形态更为复杂。在这种情况下,各大运营商都将提升网络的服务质量、控制网络运营成本、增强企业的核心竞争力等列为影响企业未来的大事,网络优化工作的重要性日益突出。
本课题就是在做优化工作的路测部分,采用的是CQT (Call Quality Tests,拨测)方式,对网络质量参数进行实时采集,来为网络优化工作服务。通过对GSM网络拨测CQT项目需求的分析,确定系统要实现的功能大致上有呼叫测试,语音质量评估,GPRS (General Packet Radio Service)附着和去附着测试等。需要将测试过程中发生的各种事件连同网络质量参数都记录下来,并通过GPRS网络上传到服务器,由客户通过终端的软件进行分析。
在确定这些功能之后,对要求的指标进行了分析。采用性能强大,处理速度快的AVR系列单片机ATMega128,由于SRAM资源比较有限,所以外扩32KB的SRAM (Static Random Access Memory,静态随机存取存储器)和2M的FLASH,无线通信模块使用西门子的MC55,配合扩展AT指令集来控制测试过程。MC55为工业级模块,测得的参数非常齐全,模块还支持TCP/IP协议,温度范围能满足要求,而且也非常抗振,能在恶劣的环境下工作。所以选择此款模块,来实现测试。
由于实现了远程控制,能自动上传文件,下载命令文件并解析执行,而且还有远程自动升级,短信控制等多项功能,改变传统人工路测的困难,给客户提供了大量有价值的客观数据,进一步为网络分析和优化打下良好基础。
Along with the rapid development of mobile communication network, the new service wells up unceasingly.The mobile communication system provides more and more data, image, video and so on the multimedia service information for users .The user scale expands unceasingly, mobile communication network bearing capacity and serviceability are facing the new challenges. Particularly in the process of evolution to 3G , the network structure is more complex. In this case, each operation business will promote the network the grade of service, control operation cost of network and enhance enterprise's core competitive power , the importance of network optimization work is prominent day by day .Mobile Communication is developping very fast, so more and more people use it . At the same time the quality of mobile communication system is worsening, so the mobile communication net needs to be moptimized and upgraded.
After analyzing the demand of the project CQT, we have confirmed a few functions including calling test , voice quality evaluation , GPRS attachment and GPRS detachment test and so on .Then we need to save kinds of events of the test process as well as the parameters of the net quality and upload them to FTP server that we supply for client by GPRS network . So our client can analyze them by a certain professional software that is supplied for client by ourselves too .
After confirming those functions ,we have done research for demand of index .We adopt the AVR micro chips Atmega128 ,whose function is powerful and process speed is very fast . For the memory source of SRAM is limited, so we extended 64KB SRAM and 2MB FLASH. We selected Simens MC55 as wireless communication model, which is combined with AT instruction. We chose this model to realize test function because MC55 can get enough information, and it supports TCP/IP protocols, more importantly it is able to work in wide temperature scope.
The system is controlled by terminal, auto upload and download files which can be executed .SMS command can control the system too. Those advantages get out of trouble in traditional manual work .The system can supply lots of valuable external data for our client, and those data is key foundation for mobile communication network optimization.
本课题就是在做优化工作的路测部分,采用的是CQT (Call Quality Tests,拨测)方式,对网络质量参数进行实时采集,来为网络优化工作服务。通过对GSM网络拨测CQT项目需求的分析,确定系统要实现的功能大致上有呼叫测试,语音质量评估,GPRS (General Packet Radio Service)附着和去附着测试等。需要将测试过程中发生的各种事件连同网络质量参数都记录下来,并通过GPRS网络上传到服务器,由客户通过终端的软件进行分析。
在确定这些功能之后,对要求的指标进行了分析。采用性能强大,处理速度快的AVR系列单片机ATMega128,由于SRAM资源比较有限,所以外扩32KB的SRAM (Static Random Access Memory,静态随机存取存储器)和2M的FLASH,无线通信模块使用西门子的MC55,配合扩展AT指令集来控制测试过程。MC55为工业级模块,测得的参数非常齐全,模块还支持TCP/IP协议,温度范围能满足要求,而且也非常抗振,能在恶劣的环境下工作。所以选择此款模块,来实现测试。
由于实现了远程控制,能自动上传文件,下载命令文件并解析执行,而且还有远程自动升级,短信控制等多项功能,改变传统人工路测的困难,给客户提供了大量有价值的客观数据,进一步为网络分析和优化打下良好基础。
Along with the rapid development of mobile communication network, the new service wells up unceasingly.The mobile communication system provides more and more data, image, video and so on the multimedia service information for users .The user scale expands unceasingly, mobile communication network bearing capacity and serviceability are facing the new challenges. Particularly in the process of evolution to 3G , the network structure is more complex. In this case, each operation business will promote the network the grade of service, control operation cost of network and enhance enterprise's core competitive power , the importance of network optimization work is prominent day by day .Mobile Communication is developping very fast, so more and more people use it . At the same time the quality of mobile communication system is worsening, so the mobile communication net needs to be moptimized and upgraded.
After analyzing the demand of the project CQT, we have confirmed a few functions including calling test , voice quality evaluation , GPRS attachment and GPRS detachment test and so on .Then we need to save kinds of events of the test process as well as the parameters of the net quality and upload them to FTP server that we supply for client by GPRS network . So our client can analyze them by a certain professional software that is supplied for client by ourselves too .
After confirming those functions ,we have done research for demand of index .We adopt the AVR micro chips Atmega128 ,whose function is powerful and process speed is very fast . For the memory source of SRAM is limited, so we extended 64KB SRAM and 2MB FLASH. We selected Simens MC55 as wireless communication model, which is combined with AT instruction. We chose this model to realize test function because MC55 can get enough information, and it supports TCP/IP protocols, more importantly it is able to work in wide temperature scope.
The system is controlled by terminal, auto upload and download files which can be executed .SMS command can control the system too. Those advantages get out of trouble in traditional manual work .The system can supply lots of valuable external data for our client, and those data is key foundation for mobile communication network optimization.
引文
1 黄扬洲,查光明. GSM/GPRS 网络性能分析. 第二十届中国 2006IT、网络、信息技术、电子、仪器仪表创新学术会议论文集,2006:153~155
2 Bishop, Jonathan. Increasing Participation in Online Communities . Computers in Human Behavior, 2007,(4):1881~1893
3 吴少雷. GPRS 无线数据通信技术应用浅析. 安徽电力,2006:31~34
4 Peter Stuckmann . Quality of Service Management in GPRS Networks. Networking ICN 2005 First International Conference, 2005:256~260
5 Xavier Lagrange,顾肇基. GSM 网络与 GPRS. 电子工业出版社,2002:117~132
6 王宏伟. 谈移动通信网的网络优化. 信息技术,2006:105~109
7 Buvaneswari, Arumugam . Dynamic Optimization in Future Cellular Networks. Bell Labs Technical Journal, 2005:99~116
8 战松涛,陈孟斌,王进. 移动网络综合优化系统设计与实现. 2006 通信理论与技术新进展第十一届全国青年通信学术会议论文集,2006:113~118
9 Tseng . GSM/GPRS-aided Authentication Protocol for Wireless LANs . IEE Proceedings Communications, 2006:810~817
10 Henry . Quad-band GPRS . Electronic Design, 2006:53~55
11 Mathias, Craig . Enter RF spectrum management. Electronic Engineering Times, 2004:44~45
12 吴豪. 移动通信网络优化新解决方案基站覆盖延伸系统的原理及应用. 大众科技,2005:125~131
13 赵绍刚. UMTS 无线接口系统的规划和优化. 电信快报,2006:209~231
14 马东平.七号信令集中监测系统的分析与应用. 治黄科技信息,2006:75~81
15 黄磊. 单片机和嵌入式系统开发平台化的研究. 南京航空航天大学硕士学位论文,2004:10~15
16 梁娟. 基于 GR64 模块的通用 GPRS 数传单元设计. 单片机与嵌入式系统应用,2007:64~69
17 查明华. ATMEGA128 新型微控制器及应用. 工业控制计算机,2002:45~49
18 康厚强,王德刚,魏急波. 用于短信息收发的 TC35 终端的硬件设计与实现. 电子技术, 2002:72~76
19 燕延,杜凡远. AVR 单片机在网络通信中的应用. 中国自动化学会全国第九届自动化新技术学术交流会论文集,2004:129~134
20 隋越. 基于 AVR 单片机的应用设计实践. 单片机与嵌入式系统应用,2006:56~60
21 唐翔. 嵌入式 GPRS 通信模块开发研究. 中国科技信息,2006:62~66
22 Frenzel . Wireless UART Chip Set Goes Frequency Hopping in The ISM Bands . Electronic Design, 2005:38~39
23 Ali, Liakot, Sidek, Ishak. Design of a Micro-UART for SoC Application . Computers & Electrical Engineering, 2004:257~262
24 孙大鹏,崔铁军. 车载监控系统中基于 GPRS 网络的数据传输技术. 中国地理信息系统协会第八届年会论文集,2004:99~104
25 海涛,李芸. 基于 GPRS 的移动控制系统研究. 自动化学会第 24 届学术年会会议论文集, 2006:150~155
26 郝立中. AVR 单片机 SPI 通信的一种抗干扰方法. 单片机与嵌入式系统应用,2004,(2):75~76
27 马利,李左儒,杨四海. 实现电子设备的网络化解决方案. 单片机与嵌入式系统应用,2002:35~39
28 Cataldo, Anthony. Triband GSM Chip Set Tackles Direct Conversion. Electronic Engineering Times,2002:49~54
29 王利敏. 基于 nRF2401 的模拟蓝牙实现及其与 GPRS 的连接. 南京理工大学学报,2005:25~29
30 李庆山,戴曙光,穆平安. nRF2401 无线模块在测控系统中的应用. 电测与仪表,2005:32~34
31 Nass, Richard. Consortium raises SoC design spirits. Embedded Systems Design, 2007:5~6
32 Garrett, Robert. Designing Custom Embedded Multicore Processors. Electronic Engineering Times, 2007:20~29
33 Yang, Stephen. Development of Wireless Embedded Systems Using Component Based Software. International Journal of Software Engineering and Knowledge Engineering, 2002:135~137
34 彭涛. TC35i 模块的低纹波噪声供电设计. 微计算机信息,2007:46~50
35 陈学泉,管宇东. 嵌入式 TCP/IP 协议单片机技术在网络通信中的应用. 通讯与电视,2002:48~49
36 雷钢. 基于 AVR 单片机的控制系统设计. 计算机与数字工程,2006:29~34
37 高有堂. 电子电路设计制板与仿真. 郑州大学学报,2004:113~117
38 杨连国. 基于 JTAG 标准的高速板上编程器设计. 电子器件,2006:20~24
39 赵学风. ATmega162 双串行口的应用. 计算机测量与控制,2006:54~58
40 邓杰海. ATmega128 扩展 512KB 掉电保护 SRAM 方案. 单片机与嵌入式系统应用,2007:45~49
41 李向江. 基于 AVR 单片机的数据采集系统设计. 中国西部科技,2006:60~64
42 姚斌. GSM/WCDMA 终端的现网测试. 电信网技术,2007:12~16
2 Bishop, Jonathan. Increasing Participation in Online Communities . Computers in Human Behavior, 2007,(4):1881~1893
3 吴少雷. GPRS 无线数据通信技术应用浅析. 安徽电力,2006:31~34
4 Peter Stuckmann . Quality of Service Management in GPRS Networks. Networking ICN 2005 First International Conference, 2005:256~260
5 Xavier Lagrange,顾肇基. GSM 网络与 GPRS. 电子工业出版社,2002:117~132
6 王宏伟. 谈移动通信网的网络优化. 信息技术,2006:105~109
7 Buvaneswari, Arumugam . Dynamic Optimization in Future Cellular Networks. Bell Labs Technical Journal, 2005:99~116
8 战松涛,陈孟斌,王进. 移动网络综合优化系统设计与实现. 2006 通信理论与技术新进展第十一届全国青年通信学术会议论文集,2006:113~118
9 Tseng . GSM/GPRS-aided Authentication Protocol for Wireless LANs . IEE Proceedings Communications, 2006:810~817
10 Henry . Quad-band GPRS . Electronic Design, 2006:53~55
11 Mathias, Craig . Enter RF spectrum management. Electronic Engineering Times, 2004:44~45
12 吴豪. 移动通信网络优化新解决方案基站覆盖延伸系统的原理及应用. 大众科技,2005:125~131
13 赵绍刚. UMTS 无线接口系统的规划和优化. 电信快报,2006:209~231
14 马东平.七号信令集中监测系统的分析与应用. 治黄科技信息,2006:75~81
15 黄磊. 单片机和嵌入式系统开发平台化的研究. 南京航空航天大学硕士学位论文,2004:10~15
16 梁娟. 基于 GR64 模块的通用 GPRS 数传单元设计. 单片机与嵌入式系统应用,2007:64~69
17 查明华. ATMEGA128 新型微控制器及应用. 工业控制计算机,2002:45~49
18 康厚强,王德刚,魏急波. 用于短信息收发的 TC35 终端的硬件设计与实现. 电子技术, 2002:72~76
19 燕延,杜凡远. AVR 单片机在网络通信中的应用. 中国自动化学会全国第九届自动化新技术学术交流会论文集,2004:129~134
20 隋越. 基于 AVR 单片机的应用设计实践. 单片机与嵌入式系统应用,2006:56~60
21 唐翔. 嵌入式 GPRS 通信模块开发研究. 中国科技信息,2006:62~66
22 Frenzel . Wireless UART Chip Set Goes Frequency Hopping in The ISM Bands . Electronic Design, 2005:38~39
23 Ali, Liakot, Sidek, Ishak. Design of a Micro-UART for SoC Application . Computers & Electrical Engineering, 2004:257~262
24 孙大鹏,崔铁军. 车载监控系统中基于 GPRS 网络的数据传输技术. 中国地理信息系统协会第八届年会论文集,2004:99~104
25 海涛,李芸. 基于 GPRS 的移动控制系统研究. 自动化学会第 24 届学术年会会议论文集, 2006:150~155
26 郝立中. AVR 单片机 SPI 通信的一种抗干扰方法. 单片机与嵌入式系统应用,2004,(2):75~76
27 马利,李左儒,杨四海. 实现电子设备的网络化解决方案. 单片机与嵌入式系统应用,2002:35~39
28 Cataldo, Anthony. Triband GSM Chip Set Tackles Direct Conversion. Electronic Engineering Times,2002:49~54
29 王利敏. 基于 nRF2401 的模拟蓝牙实现及其与 GPRS 的连接. 南京理工大学学报,2005:25~29
30 李庆山,戴曙光,穆平安. nRF2401 无线模块在测控系统中的应用. 电测与仪表,2005:32~34
31 Nass, Richard. Consortium raises SoC design spirits. Embedded Systems Design, 2007:5~6
32 Garrett, Robert. Designing Custom Embedded Multicore Processors. Electronic Engineering Times, 2007:20~29
33 Yang, Stephen. Development of Wireless Embedded Systems Using Component Based Software. International Journal of Software Engineering and Knowledge Engineering, 2002:135~137
34 彭涛. TC35i 模块的低纹波噪声供电设计. 微计算机信息,2007:46~50
35 陈学泉,管宇东. 嵌入式 TCP/IP 协议单片机技术在网络通信中的应用. 通讯与电视,2002:48~49
36 雷钢. 基于 AVR 单片机的控制系统设计. 计算机与数字工程,2006:29~34
37 高有堂. 电子电路设计制板与仿真. 郑州大学学报,2004:113~117
38 杨连国. 基于 JTAG 标准的高速板上编程器设计. 电子器件,2006:20~24
39 赵学风. ATmega162 双串行口的应用. 计算机测量与控制,2006:54~58
40 邓杰海. ATmega128 扩展 512KB 掉电保护 SRAM 方案. 单片机与嵌入式系统应用,2007:45~49
41 李向江. 基于 AVR 单片机的数据采集系统设计. 中国西部科技,2006:60~64
42 姚斌. GSM/WCDMA 终端的现网测试. 电信网技术,2007:12~16