CDMA2000 系统消息Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.1引入手机存在于现实中的各个角落，为了完成手机存在于现实中的各个角落，为了完成 用户与他人（或物）之间信息交互的使命，它用户与他人（或物）之间信息交互的使命，它 必须知道一定的网络必须知道一定的网络/ /系统信息，从而在用户系统信息，从而在用户 请求某种业务时，可以接入可提供该业务的系请求某种业务时，可以接入可提供该业务的系 统中服务用户。这些特定的网络统中服务用户。这些特定的网络/ /系统信息称系统信息称 为系统消息。为系统消息。 举一个例子来说，张三要找工举一个例子来说，张三要找工 作，他明确了自身条件后，就要去找用人单位作，他明确了自身条件后，就要去找用人单位 的信息，包括有哪些单位招人？有什么工种？的信息，包括有哪些单位招人？有什么工种？ 条件是什么？薪水待遇如何等。这些信息就相条件是什么？薪水待遇如何等。这些信息就相 当于通讯系统中的系统消息的作用。当于通讯系统中的系统消息的作用。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.2学习目标 系统消息概述 系统消息分类 系统消息内容 系统消息应用 切换与数据业务消息学习完本课程，您应该能够了解 ：Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.3课程内容第一章 系统消息概述第二章 系统消息分类第三章 系统消息内容第四章 系统消息应用第五章 切换与数据业务消息Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.4第一章 系统消息概述在CDMA系统中，几乎所有的呼叫流程由消 息驱动，部分CDMA信道仅用于传递消息 。 Sync Channel (前向信道) Paging Channel (前向信道) Access Channel (反向信道) 以上信道总是传递消息 一些 CDMA 信道用于承载业务 Forward Traffic Channel Reverse Traffic Channel 这些信道大部分时间传输业务，也有少量时 间传输带内信令 所有的CDMA 在传输时有相似的格式 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.5消息结构所有业务信道的消息都是突发方式发送消息包含多个字段的二进制方式第一个字节为消息类型后续字段表明消息的顺序消息可以使用的发送方式：1.确认方式；2.多次重发方式；消息可以用路测设备解码Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.6移动台系统消 息处理Receiver RF Section IF, DetectorTransmitter RF SectionVocoderDigital Rake Receiver Traffic Correlator PN xxxWalsh xx Traffic Correlator PN xxxWalsh xxTraffic Correlator PN xxxWalsh xxPilot Searcher PN xxxWalsh 0Viterbi DecoderCPUDuplexerTransmitter Digital SectionLong Code Gen.Open LoopTransmit Gain AdjustMessagesMessagesAudioAudioPacketsSymbolsSymbols ChipsRFRFAGCEvaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.7课程内容第一章 系统消息概述第二章 系统消息分类第三章 系统消息内容第四章 系统消息应用第五章 切换与数据业务消息Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.8第二章 系统消息 分类一些CDMA信道，只用来携带消息，不承载业务Sync ChannelPaging ChannelAccess Channel 仅传送 消息一些CDMA信道，承载业务，也承载信令和消息Forward Traffic ChannelReverse Traffic Channel业务和信息Quick Paging ChannelEvaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.9系统捕获与空闲状 态下的消息Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.10通话状态下的消息Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.11按照内容分类（Idle） Sync Channel MessageSCHM Access Parameters MessageAPM System Parameters MessageSPM Neighbor List Message NLM CDMA Channel List Message CCLM Extended System Parameters Message ESPMcdma2000协议规定了13种系统消息, 有6种是必选的:Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.12按照内容分类（Idle） Global Service Redirection Message GSRDM Extended Neighbor List Message ENLM Extended CDMA Channel List Message ECCLM Private Neighbor List Message PNLM General Neighbor List Message GNLM User Zone Identification Message UZIM Extended Global Service Redirection Message EGSRDM cdma2000协议规定下列7种为可选:Evaluation only.Evaluation only. Created with