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Description: This book is concerned with the description and analysis of the global second generation
(2G) mobile radio systems: the Global System of Mobile Communications (GSM) and
cdmaOne. A subsidiary goal is to examine how these two systems will evolve into third
generation (3G) ones with their requirement to support multimedia mobile radio communications.
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Size: 7244024 |
Author: 秦蔚 |
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Description: 软件无线电技术- Software radio technology
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Size: 257024 |
Author: 刘军 |
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Description: GPRS(General Packet Radio Service)是通用分组无线业务的简称。GPRS是GSM Phase2.1规范实现的内容之一，能提供比现有GSM网9.6kbit/s更高的数据率。GPRS采用与GSM 相同的频段、频带宽度、突发结构、无线调制标准、跳频规则以及相同的TDMA帧结构。因此，在GSM系统的基础上构建GPRS系统时，GSM系统中的绝大部分部件都不需要作硬件改动，只需作软件升级。-GPRS (General Packet Radio Service) is a General Packet Radio Service abbreviation. GPRS GSM Phase2.1 norms to achieve one of the elements that can provide more than the existing GSM network 9.6kbit/s higher data rate. GSM and GPRS using the same frequency and bandwidth, unexpected structure, the wireless standard modulation, frequency hopping and the same rules TDMA frame structure. Therefore, in the GSM system builds on the GPRS system, the GSM system of most components do not need to make hardware changes, only for software upgrades.
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Size: 1072128 |
Author: 齐征 |
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Description: All 3G and GSM specifications have a 3GPP specification number consisting of 4 or 5 digits. (e.g. 09.02 or 29.002). The first two digits define the series as listed in the table below. They are followed by 2 further digits for the 01 to 13 series or 3 further digits for the 21 to 55 series. The term "3G" means a 3GPP system using a UTRAN radio access network the term "GSM" means a 3GPP system using a GERAN radio access network. (Thus "GSM" includes GPRS and EDGE features.)-All 3G and GSM specifications have a 3GPP sp ecification number consisting of four or five digits. (e.g. 09.02 or 29.002). The first two digits def BrdU the series as listed in the table below. They are followed by two further digits for the 01 to 13's eries or three further digits for the 21 to 55 series. The term "3G" means a system using a 3GPP UTRAN ra dio access network the term "GSM" means a 3GPP sy GERAN stem using a radio access network. (Thus " GSM "includes GPRS and EDGE features.)
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Size: 97280 |
Author: guoguo |
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Description: This book is concerned with the description and analysis of the global second generation
(2G) mobile radio systems: the Global System of Mobile Communications (GSM) and
cdmaOne. A subsidiary goal is to examine how these two systems will evolve into third
generation (3G) ones with their requirement to support multimedia mobile radio communications.
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Size: 7243776 |
Author: 秦蔚 |
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Description: 数字式调频收音机设计(电路设计,软件设计)-Digital FM radio design (circuit design, software design)
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Size: 38912 |
Author: liushaoping |
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Description: GPRS是通用分组无线业务(General Packet Radio Service)的简称，它突破了GSM网只能提供电路交换的思维方式，只通过增加相应的功能实体和对现有的基站系统进行部分改造来实现分组交换，这种改造的投入相对来说并不大，但得到的用户数据速率却相当可观。本实例教授大家GPRS基础知识。-GPRS is General Packet Radio Service (General Packet Radio Service) abbreviation, it broke through the GSM circuit-switched networks can only provide a way of thinking, only by increasing the corresponding functional entities and the existing base station system part of the transformation to achieve packet switching, this transformation is not relatively large, but the user data rate is considerable. Professor of the examples of the basic knowledge we GPRS.
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Size: 2108416 |
Author: joe |
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Description: The aim of this book is to provide the reader with a thorough grounding in the General Packet Radio Service – GPRS.The introduction contains a basic review of GSM to ensure that the reader is clear on the main aspects of
circuit switched technology, as this will make the differences and advantages of packet oriented GPRS both more apparent and easier to understand.-The aim of this book is to provide the reader with a thorough grounding in the General Packet Radio Service- GPRS.The introduction contains a basic review of GSM to ensure that the reader is clear on the main aspects ofcircuit switched technology, as this will make the differences and advantages of packet oriented GPRS both more apparent and easier to understand.
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Size: 4713472 |
Author: 夏子婷 |
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Description: GSM 无线接口理论 GSM_RF_interfacebook.doc-GSM radio interface theory GSM_RF_interfacebook.doc
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Size: 222208 |
Author: chen |
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Description: The Radio Interface Layer is the name for an interface that was developed especially for the Pocket PC Phone Edition. It is meant to abstract the interface with a phone/modem device. To achieve this it is closely modelled after the GSM AT command interface. Unfortunately the API was not published officially by Microsoft. Instead more high level API s were published that should be sufficient for developers. Again, unfortunately they are not sufficient. For example the API for receiving notification of incoming SMS messages is arranged for exclusively for one application per type of SMS. Apparently this will be improved upon in Pocket PC 2003. Another area is the availablity of a true AT command modem interface to interact with the GSM modem directly, which is also absent.
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Size: 186368 |
Author: 徐小传 |
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Description: GSM有关的基础知识.诸如,数字移动通信GSM发展简史技术,GSM系统结构及相关接口,TDMA帧结构,GSM的区域定义及GSM识别号,无线接口的逻辑信道及系统消息,GSM系统的移动性管理和安全性管理以及GSM移动网络结构和信令网等-GSM on the basis of knowledge. Such as, digital GSM mobile communications technology development history, GSM system architecture and related interfaces, TDMA frame structure, GSM regional definition and GSM identification numbers, the logical channel radio interface and system messages, GSM System for Mobile management and security management, and GSM mobile network architecture and signaling networks
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Size: 1138688 |
Author: 张石秀 |
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Description: 基于systemview的GSM通信系统仿真。一个实际的GSM系统的System View仿真模型包括：信号源、波形成型、调制、信道传输、射频接收、两次混频和解调器等部分。-Systemview based on the GSM communication system simulation. An actual GSM System System View simulation model include: signal sources, waveform shaping, modulation, channel transmission, radio frequency receiver, mixer and demodulator two parts.
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Size: 6144 |
Author: 阿妹儿 |
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Description: 讲解GPRS基本原理
第1章 GPRS概述
第2章 GPRS基本功能和业务
第3章 GPRS基本体系结构和传输机制
第4章 移动性管理
第5章 无线资源管理功能
第6章 分组路由与传输功能
第7章 用户数据传输
第8章 信息存储
第9章 编号方案
第10章 GPRS系统的运营
第11章 与GSM其它业务的交互
第12章 IP相关的基础知识-GPRS to explain the basic principles outlined in Chapter 1 GPRS basic Chapter 2 GPRS functionality and business Chapter 3 the basic GPRS architecture and transport mechanism, Chapter 4 Mobility Management Chapter 5 radio resource management functions Chapter 6 Packet Routing and Transfer Function Chapter 7 User data transmission Chapter 8 Information Storage Chapter 9 numbering scheme Chapter 10 GPRS system operating in Chapter 11 and other GSM business interaction Chapter 12 IP-related basic knowledge
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Size: 493568 |
Author: zhou |
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Description: RIL( Radio Interface Layer) is the middleware for GSM/GPRS/EDGE module, this version support the GSM 07.10 mutiplexier protocol, while the android original version not.-RIL( Radio Interface Layer) is the middleware for GSM/GPRS/EDGE module, this version support the GSM 07.10 mutiplexier protocol, while the android original version not.
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Size: 211968 |
Author: 罗平 |
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Description: 目前的智能机在硬件上多采用双cpu的架构，一个是基带处理器，主要处理数字信号、语音信号的编码解码以及GSM通信协议，另一个是应用处理器，运行操作系统和各种应用程序。基带处理器、射频和其它外围芯片作为一个模块，成为GSM/GPRS modem，提供AT命令接口。网络的应用已经是一个需求的热点，而目前的GSM模块大多都能支持GPRS功能。应用处理器通过AT命令集与带GPRS功能的无线通讯模块通信，为实现网络的应用提供了一个最底层的支持。
-Intelligent machines in the current hardware on many dual-cpu architecture of a baseband processor are mainly deal with digital signals, voice signals, and GSM codecs communication protocol, and the other is the application processor, operating system and applications running procedures. Baseband processor, radio frequency and other peripheral chips, as a module, as a GSM/GPRS modem, provided by AT command interface. Application of network needs is a hot spot, and most of the current GSM module can support GPRS function. Application processor through the AT command set and functionality with GPRS wireless communication module, in order to achieve the application of the network provides a bottom support.
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Size: 194560 |
Author: eleven |
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Description: 通用无线分组业务(GPRS) 是一种基于全球移动通信系统(GSM) 的无线分组交换技术, 提供
端到端的、广域的无线IP 连接, 具有永远在线等特点。介绍了基于GPRS 网络的数据终端单元
(DTU) 。该单元是由以ARM芯片S3C44B0X 和GPRS 模块G20 为核心的硬件和软件组成。在概括
工业GPRS 监控系统构成的基础上, 介绍了GPRS DTU 硬件设计, GPRS DTU 软件是由μC /OSⅡ操
作系统、TCP / IP 协议、点对点协议组成。该单元使用户通过GPRS 网络实现用户设备和用户数据
中心之间的数据传输-General Packet Radio Service (GPRS) is based on Global System for Mobile Communications (GSM) wireless packet switching technologies to provide end-to-end, wide-area wireless IP connection, with always-on and so on. Presented data based on the GPRS network terminal unit (DTU). The unit is the ARM chip from S3C44B0X and GPRS Module G20 as the core hardware and software components. In the summary of the industrial composition of GPRS monitoring system based on GPRS DTU introduces hardware design, GPRS DTU software by μC/OS Ⅱ operating system, TCP/IP protocol, the composition of point-to-point agreement. The unit allows users to users through the GPRS network equipment and user data between the data center
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Description: 华为材料,主要介绍GSM 有关的基础知识，诸如 ：GSM 发展简史、数字移动通信技术、GSM 系统结构及相关接口、TDMA 帧结构、GSM 的区域定义及GSM识别号、无线接口的逻辑信道及系统消息、GSM 系统的移动性管理和安全性管理以及GSM 移动网络结构和信令网等。-Introduces the basic knowledge of GSM, such as: GSM history, digital mobile communication technology, GSM system architecture and related interfaces, TDMA frame structure, GSM and GSM definition of the region identifier, the logical channel radio interface and system messages, GSM system mobility management and security management, and GSM mobile network architecture and signaling networks.
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Size: 351232 |
Author: 郑嘉 |
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Description: Digital cellular telecommunications system (Phase 2+)
Mobile radio interface layer 3 specification
(GSM 04.08 version 7.8.0 Release 1998)
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Size: 2896896 |
Author: 石火龙 |
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Description: detailed description of Radio planning for GSM network
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Size: 7775232 |
Author: pouria |
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Description: GSM Channels
Physical Channels
Associated with frequency bands, time slots, codes
Physical channels transfer bits from one network element to another
Logical Channels
Distinguished by the nature of carried information and the way to assemble bits into data units
Three types
one-to-one: traffic channels between a BTS and a MS
one-to-many: synchronization signals from BTS to MSs in a cell
many-to-one: from MSs to the same BTS
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Size: 187392 |
Author: HOSSEIN |
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