GSM手机综测仪接收模块的DSP实现
摘要
近年来，移动电话在中国迅速地普及和发展，市场上的国产手机已经占据了一定的份额。但是用于测试手机性能的仪器却以国外的产品为主，中国自己的测试仪器的研究开发刚刚起步。本课题涉及的项目就是开发用于维修的GSM手机综合测试仪。
该手机综测仪中的基带处理部分是本论文关注的内容。基带处理部分采用了DSPs+FPGA的结构，具有结构灵活的特性，通用性较强，适于模块化设计。并且开发周期短，系统易于维护和升级，适合用于实时信号处理。
综测仪由信令模块，发射模块，接收模块和测量模块组成。
本论文的主要任务是用DSP，通过几个模块之间的联调，实现基带处理的接收模块的功能。
接收模块主要完成GMSK解调和解码功能，并将所解码出的手机上行的信号传递给信令模块。解调采用的是2BIT差分解调，解调后根据不同信道的类型采用不同的解码方式，再将解码的结果放入与信令模块共享的双口RAM，以便信令模块取走。
本课题实现了正确解码手机上行信号，为以后阶段的测试模块调试打下了基础。
Integrative Testing Instrument for GSM handsets is used to measure some important parameters of GSM handsets, such as signal quality and function performance. Its base-band module is mainly made up of four DSPs: signaling, submitting, receiving and testing.
This dissertation mainly discusses the implementation of the software for the receiving DSP.
In the process of implementation, it is essential to find a scheme to solve the following problems:
(Identification of the logic channel type of signals from handsets, which is the key to determine which decoding module should be called.
(Decoding the signal from handsets correctly, which depends on whether the comprehension about the channel decoding protocols concerned is right and whether a pattern for data-storing can be developed.
(The rather high requirement for real time processing. Whether failed to contain the process in the strictly limited time , the whole system could not work .
As an achievement, a mature channel-judge scheme has been developed, which answers for the requirements of real-time processing. And debugging practice has testified that in this scheme the receiving DSP can accurately decode all the signals from handsets. In the fifth chapter this scheme is discussed in details.
Other contents:
In the first chapter, the preface is presented;
In the second chapter, a general introduction for the GSM Integrative Testing Instrument is given;
In the third chapter, on-chip peripherals used in substrate DSP software are introduced;
In the forth chapter, protocols of GSM wireless interface signaling are introduced;
In the sixth chapter, a conclusion has been drawn.
该手机综测仪中的基带处理部分是本论文关注的内容。基带处理部分采用了DSPs+FPGA的结构，具有结构灵活的特性，通用性较强，适于模块化设计。并且开发周期短，系统易于维护和升级，适合用于实时信号处理。
综测仪由信令模块，发射模块，接收模块和测量模块组成。
本论文的主要任务是用DSP，通过几个模块之间的联调，实现基带处理的接收模块的功能。
接收模块主要完成GMSK解调和解码功能，并将所解码出的手机上行的信号传递给信令模块。解调采用的是2BIT差分解调，解调后根据不同信道的类型采用不同的解码方式，再将解码的结果放入与信令模块共享的双口RAM，以便信令模块取走。
本课题实现了正确解码手机上行信号，为以后阶段的测试模块调试打下了基础。
Integrative Testing Instrument for GSM handsets is used to measure some important parameters of GSM handsets, such as signal quality and function performance. Its base-band module is mainly made up of four DSPs: signaling, submitting, receiving and testing.
This dissertation mainly discusses the implementation of the software for the receiving DSP.
In the process of implementation, it is essential to find a scheme to solve the following problems:
(Identification of the logic channel type of signals from handsets, which is the key to determine which decoding module should be called.
(Decoding the signal from handsets correctly, which depends on whether the comprehension about the channel decoding protocols concerned is right and whether a pattern for data-storing can be developed.
(The rather high requirement for real time processing. Whether failed to contain the process in the strictly limited time , the whole system could not work .
As an achievement, a mature channel-judge scheme has been developed, which answers for the requirements of real-time processing. And debugging practice has testified that in this scheme the receiving DSP can accurately decode all the signals from handsets. In the fifth chapter this scheme is discussed in details.
Other contents:
In the first chapter, the preface is presented;
In the second chapter, a general introduction for the GSM Integrative Testing Instrument is given;
In the third chapter, on-chip peripherals used in substrate DSP software are introduced;
In the forth chapter, protocols of GSM wireless interface signaling are introduced;
In the sixth chapter, a conclusion has been drawn.
引文
[1] 庄炜，宋文涛, GSM数字蜂窝移动通信标准Um接口的信令分析及软件实现
[2] 方立新，GSM移动通信中基站帧单元第三层软件的实现
[3] 朱利泳，GSM手机参数的测试及其分析
[4] 郭梯云，杨家玮，李建东 .数字移动通信. 人民邮电出版社,1996年3月
[5]孙孺石，丁怀元，穆万里，王泽权 .GSM数字移动通信工程. 人民邮电出版社,1996年3月
[6] 骆健霞等译 .GSM数字移动通信系统. 电子工业出版社 ,1996年6月
[7] 邮电部科学技术司 .移动通信文件汇编—技术体制卷. 1998年1月
[8] 彭启琮 .TMS320C54X实用教程. 电子科技大学出版社 2000年1月
[9] 彭启琮，李玉柏 .DSP技术. 电子科技大学出版社 1997年
[10] 张雄伟，曹铁勇 .DSP芯片的原理与开发应用. 电子工业出版社 2000年9月
[11] 胡广书 .数字信号处理－理论、算法与实现. 清华大学出版社 1997年8月
[12] 粱翎，李爱齐 .C语言用户接口编程技巧. 学苑出版社 1994年
[13]田日才，刘文贵 .GMSK调制方式的研究与应用. 通信技术与发展 1995年，第6 期
[14] 曹志刚，钱亚生 .现代通信原理. 清华大学出版社,1997年
[15]陈勇 GSM手机综合测试仪无线接口信令的实现：[硕士学位论文]
成都：电子科技大学通信学院 2001年3月
[16]赵王胜 GSM手机综测仪基带板的硬件和底层软件设计：[硕士学位论文]
成都：电子科技大学通信学院 2002年4月
[17] GSM 01.02: European digital cellular telecommunication system; General description of GSM Public Land Mobile Network (PLMN)
[18] GSM 01.04: European digital cellular telecommunication system; Abbreviations and acronyms
[19] GSM 02.07: European digital cellular telecommunication system; Mobile Station (MS) features
[20] GSM 02.16: European digital cellular telecommunication system; International Mobile station Equipment Identities (IMEI)
[21] GSM 03.05: European digital cellular telecommunication system; Technical performance objection
[22] GSM 03.08: European digital cellular telecommunication system; Organization of subscriber data
[23] GSM 04.05: European digital cellular telecommunication system; General aspects of Data Link (DL) layer
[24] GSM 04.06: European digital cellular telecommunication system; Specification of Mobile Station-base Station System(MS-BSS) interface and Data Link (DL) layer
[25] GSM 04.08: European digital cellular telecommunication system; Mobile radio interface layer 3 Specification
[26] GSM 05.03: European digital cellular telecommunication system; Channel coding
[27] GSM 05.01: European digital cellular telecommunication system; Physical layer on the radio path General description.
[28] GSM 12.05: European digital cellular telecommunication system; Performance data measurements
[29] GSM 4.11: "European digital cellular telecommunication system; Point to Point Short Message Service (SMS) support on mobile radio interface
[30] GSM 04.07: "European digital cellular telecommunication system; Mobile radio interface layer 3 General aspects
[31] GSM 04.10: European digital cellular telecommunication system; Mobile radio interface layer 3 Supplementary services specification General aspects
[32] GSM 04.80: European digital cellular telecommunication system; Mobile radio interface layer 3 supplementary services specification Formats and coding
[33] GSM 05.04: European digital cellular telecommunication system; Modulation
[34] Texas Instruments .TMS320C54x DSP Reference Set .Volume 1: CPU and Peripherals, 1999年
[35] Texas Instruments .TMS320C54x DSP Reference Set .Volume 2:Mnemonic Instruction Set, 1997
[36] Texas Instruments .TMS320C54x DSP Reference Set .Volume 4:Application Guide,1996
[37] Texas Instruments .TMS320C54x Assembly Language Tools User's Guide. 1997年
[38] Texas Instruments .TMS320C54x DSP Enhanced Peripherals. 1999年
[39] Ansgar Bergmann .The GSM Air Interface—Signalling Aspects. 魏钰敏译，
[2] 方立新，GSM移动通信中基站帧单元第三层软件的实现
[3] 朱利泳，GSM手机参数的测试及其分析
[4] 郭梯云，杨家玮，李建东 .数字移动通信. 人民邮电出版社,1996年3月
[5]孙孺石，丁怀元，穆万里，王泽权 .GSM数字移动通信工程. 人民邮电出版社,1996年3月
[6] 骆健霞等译 .GSM数字移动通信系统. 电子工业出版社 ,1996年6月
[7] 邮电部科学技术司 .移动通信文件汇编—技术体制卷. 1998年1月
[8] 彭启琮 .TMS320C54X实用教程. 电子科技大学出版社 2000年1月
[9] 彭启琮，李玉柏 .DSP技术. 电子科技大学出版社 1997年
[10] 张雄伟，曹铁勇 .DSP芯片的原理与开发应用. 电子工业出版社 2000年9月
[11] 胡广书 .数字信号处理－理论、算法与实现. 清华大学出版社 1997年8月
[12] 粱翎，李爱齐 .C语言用户接口编程技巧. 学苑出版社 1994年
[13]田日才，刘文贵 .GMSK调制方式的研究与应用. 通信技术与发展 1995年，第6 期
[14] 曹志刚，钱亚生 .现代通信原理. 清华大学出版社,1997年
[15]陈勇 GSM手机综合测试仪无线接口信令的实现：[硕士学位论文]
成都：电子科技大学通信学院 2001年3月
[16]赵王胜 GSM手机综测仪基带板的硬件和底层软件设计：[硕士学位论文]
成都：电子科技大学通信学院 2002年4月
[17] GSM 01.02: European digital cellular telecommunication system; General description of GSM Public Land Mobile Network (PLMN)
[18] GSM 01.04: European digital cellular telecommunication system; Abbreviations and acronyms
[19] GSM 02.07: European digital cellular telecommunication system; Mobile Station (MS) features
[20] GSM 02.16: European digital cellular telecommunication system; International Mobile station Equipment Identities (IMEI)
[21] GSM 03.05: European digital cellular telecommunication system; Technical performance objection
[22] GSM 03.08: European digital cellular telecommunication system; Organization of subscriber data
[23] GSM 04.05: European digital cellular telecommunication system; General aspects of Data Link (DL) layer
[24] GSM 04.06: European digital cellular telecommunication system; Specification of Mobile Station-base Station System(MS-BSS) interface and Data Link (DL) layer
[25] GSM 04.08: European digital cellular telecommunication system; Mobile radio interface layer 3 Specification
[26] GSM 05.03: European digital cellular telecommunication system; Channel coding
[27] GSM 05.01: European digital cellular telecommunication system; Physical layer on the radio path General description.
[28] GSM 12.05: European digital cellular telecommunication system; Performance data measurements
[29] GSM 4.11: "European digital cellular telecommunication system; Point to Point Short Message Service (SMS) support on mobile radio interface
[30] GSM 04.07: "European digital cellular telecommunication system; Mobile radio interface layer 3 General aspects
[31] GSM 04.10: European digital cellular telecommunication system; Mobile radio interface layer 3 Supplementary services specification General aspects
[32] GSM 04.80: European digital cellular telecommunication system; Mobile radio interface layer 3 supplementary services specification Formats and coding
[33] GSM 05.04: European digital cellular telecommunication system; Modulation
[34] Texas Instruments .TMS320C54x DSP Reference Set .Volume 1: CPU and Peripherals, 1999年
[35] Texas Instruments .TMS320C54x DSP Reference Set .Volume 2:Mnemonic Instruction Set, 1997
[36] Texas Instruments .TMS320C54x DSP Reference Set .Volume 4:Application Guide,1996
[37] Texas Instruments .TMS320C54x Assembly Language Tools User's Guide. 1997年
[38] Texas Instruments .TMS320C54x DSP Enhanced Peripherals. 1999年
[39] Ansgar Bergmann .The GSM Air Interface—Signalling Aspects. 魏钰敏译，