Радио дизайн и технологии. RF Design

Радио дизайн и технологии. РЧ оборудование, его разработка, тестирование. схемотехника. RF Design

GSM/GPRS/EDGE

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GPRS. Интернет-ресурсы

 

 

Design and Implementation of a GPS Receiver Design and Implementation of a GPS Receiver, Functional Description and Complete System Block Diagram, pdf file

General Packet Radio Service (GPRS) General Packet Radio Service, more commonly known as GPRS, is a new non-voice, value added, high-speed, packet-switching technology, for GSM (Global System for Mobile Communications) networks, …

General Packet Radio Service (GPRS) General Packet Radio Service (GPRS), pdf file

General Packet Radio Service (GPRS) General Packet Radio Service (GPRS) explained

General Packet Radio Service (GPRS) General Packet Radio Service (GPRS) explained, GPRS stands for General Packet Radio Service. GPRS is a non-voice (data) service that allows information to be sent and received across a mobile telephone network., pdf file

GPS carrier-phase time and frequency transfer GPRS — General Packet Radio Service data transmission for mobile telephony

GPRS overview GPRS, a 2.5G system, Combination of TDMA & FDMA, Mobile station Uplink Reverse ch. 890 — 915 MHz, Base station Downlink Forward ch. 935 — 960 MHz

GPRS Tutorial GPRS Technical Overview, SGSN, GGSN, Connectivity Between the SGSN & GGSN, HLR, IP addressing, Allocating Addresses, How Does the SGSN know which GGSN to direct you to? IP Version 6, GPRS Handset Classes, pdf file

GPRS General Packet Radio Service (GPRS), General Packet Radio Service (GPRS) is a mobile data service available to users of GSM mobile phones

GPRS by Cisko: white papers in pdf format, datasheets, General Packet Radio Service

GPRS GSM multiple access, GPRS architectural detail, GPRS: data transfer over GSM, Packet Control Unit (PCU), GSM to GPRS, Radio Link Control (RLC), GPRS routing, pdf file

GPRS GSM multiple access, GPRS architectural detail, GPRS: data transfer over GSM, Packet Control Unit (PCU), GSM to GPRS, Radio Link Control (RLC), GPRS routing, ppt file

GPRS mobile communications, GPRS (the General Packet Radio Service)

GPRS FAQ

GPRS: How it works GPRS: How it works, pdf file

GPRS Interfaces

GPRS Tutorial Understanding GPRS: The GSM Packet Radio Service, GPRS Architectural Aspects, pdf file

GPRS Tutorial GPRS (General Packet Radio Service) is a packet based communication service for mobile devices that allows data to be sent and received across a mobile telephone network. GPRS is a step towards 3G and is often referred to as 2.5G. Here are some key benefits of GPRS, GPRS Technical Overview, pdf file

GPRS user data throughput in GSM pdf file

Overview of GPRS and UMTS pdf file

Understanding General Packet Radio Service (GPRS) Data communication needs, The GPRS network, GPRS protocol layers, GPRS identities, GPRS air interface, Packet data transfer operations, pdf file

GSM. Интернет-ресурсы


Где взять стандарты GSM по радиоинтерфейсу:


На сайте Института ETSI

  • ETSI ETS 300 577 — Digital cellular telecommunications system (Phase 2) (GSM); Radio transmission and reception (Ввести для поиска: GSM 05.05)

 

На сайте Партнерства 3rd Generation Partnership Project (3GPP)

  • 3GPP TS 05.05 — Radio Transmission and Reception (Радиоприем и радиопередача)
  • 05 series — Radio aspects (Серия 05 — Различные аспекты радиоинтерфейса GSM)

 

 


 


 


 


 



Apple 3G-iPhone Block Diagram Apple 3G-iPhone Block Diagram, pdf file

BlackBerry: System Block Diagram BlackBerry: System Block Diagram

Cellular Communications pdf file

Cellular phone antennas and human health a mobile phone (cell phone) is a low-power, single-channel, two-way radio. When you talk on such a mobile phone, you (and perhaps dozens of other people around you) are talking to a nearby base station

Cellular telephone basics how Cellular phones work

ETSI European Telecommunications Standards Institute

From Speech to Radio Waves Radio Transmission Aspects, From Speech to Radio Waves, The GSM Speech Coding, The GSM Channel Coding, Error Detecting Codes, Convolutional Coding / Decoding, Interleaving / De-interleaving, Ciphering / Deciphering, Modulation / Demodulation, RF Power levels

GSM overview of the Global System for Mobile Communications, Traffic channels, Control channels, Burst structure, Speech coding, Channel coding and modulation, Multipath equalization, Frequency hopping, Discontinuous transmission, Discontinuous reception

GSM 900, 1800 and 1900 GSM frequency ranges, GSM frequency spectrum, GSM-900 uses 890 — 915 MHz to send information from the Mobile Station to the Base Transceiver Station (upstream) and 935 — 960 MHz for the other direction (downstream), …,  GSM-900, GSM-1800, Downlink Frequencies, Uplink Frequencies, Channel Spacing, Modulation types, Typical Mobile Transmit Power, BaseStation Transmit Power, Maximum Distance, Speech Encoding LPC, Bit Rate

GSM architecture Global system for mobile communication Global system for mobile communication (GSM) is a globally accepted standard for digital cellular communication, ppt file

GSM-CDMA GSM CDMA network, code-division multiple access, CDMA cellular networks, pdf file

GSM Coverage Maps and Roaming Information GSM Coverage Maps and Roaming Information

GSM hacking a lot of technical stuff, information on Alcatel, Bosch, Dancall, Ericsson, Motorola, Nokia, Panasonic, Philips, Sagem, Samsung, Siemens, Sony, Mitsubishi and NEC cellular phones, Siemens interface, NOKIA pinouts

GSM Handset System TI System Block Diagram

GSM modulation techniques Gaussian Minimum Shift Keying (GMSK)

GSM Multiplexing Technologies pdf file

GSM-Network Architecture GSM-Network Architecture, ppt file

GSM operators and network codes by country

GSM overview basic information about the GSM system, pdf file

GSM phone signal analysis GSM uses a combination of frequency division multiple access (FDMA) and time division multiple access (TDMA). What this means in reality is that within each band there are a hundred or so available carrier frequencies on 200kHz spacing (the FDMA bit), and each carrier is broken up into time-slots so as to support 8 separate conversations (the TDMA bit)

GSM Radio Interface


GSM Signalling and Protocols pdf file

GSM Spectrum use GSM Frequency Utilisation within Europe, pdf file

GSM system pdf file

GSM system overview pdf file

GSM technical info GSM Cellbroadcasting, GSM Channel Coding, GSM Speech Coder, GSM Traffic & Signalling Channels, Useful Technical Cellular Terms, pdf file

GSM terms virtual information source about GSM phones, systems and networks

GSM timeslot

Inside GSM technology behind GSM, sim side, microcontroller side

ISM frequency bands (900 MHz & 2.4 GHz) ISM frequency bands (900 MHz & 2.4 GHz), 5 GHz frequency bands (HiperLan and UNII band), Spread Spectrum techniques, Direct Sequence, Frequency Hopping, Signal to noise ratio (SNR)

Mobile phone detector Simple demonstration to explore the radio waves generated by a mobile phone

Near field of a mobile phone at 2.1GHz

Nokia N95 GSM Block Diagram

Overview of the Global System for Mobile Communications Speech coding, Channel coding and modulation, Multipath equalization, Frequency hopping, Discontinuous transmission, Discontinuous reception, Power control, Network aspects

Radio frequency bands for GSM and UMTS GSM bands, GPRS bands, EDGE Bands, UMTS bands

SMS tutorial Short message service (SMS) is a globally accepted wireless service that enables the transmission of alphanumeric messages between mobile subscribers and external systems such as electronic mail, paging, and voice-mail systems

SMS tutorial Wireless Short Message Service (SMS), Short message service (SMS) is a globally accepted wireless service that enables the transmission of alphanumeric messages between mobile subscribers and external systems such as electronic mail, paging, and voice-mail systems

Stralingsnormen GSM

Wireless developer network high quality technical information

Wireless Personal Communications Services (PCS), only US

Wireless short message service SMS, short message service is a mechanism of delivery of short messages over the mobile networks. It is a store and forward way of transmitting messages to and from mobiles. The message (text only) from the sending mobile is stored in a central short message center (SMS) which then forwards it to the destination mobile

Wireless Short Message Service tutorial pdf file

Wireless telecom glossary Cellular Networking Perspectives, Wireless, Telecom and Computer Glossary

Wireless telephony mobile phones, pdf file

Horizontaal

Wap

The Wireless Application Protocol (WAP) pdf file

Wap WAP specifies a Wireless application Environment and Wireless Protocols. The Wireless application environment (WAE) is based on WSP (Wireless Session Protocol) and WTP (Wireless Transaction Protocol)

WAP 2.x architecture –Features, services and functions In this article, the authors describe WAP 2.x, the universal wireless application environment. They explain the similarities and differences between the WAP 1.x and WAP 2.x architectures, and depict conceptual components and features of the second-generation architecture, pdf file

Wap demo

Wap& SMS

Wap glossary WAP is a wireless communications environment for delivering web data to wireless terminals with minimal screen display

WAP architecture Wireless Application Protocol Architecture Specification, pdf file

Wap white papers

Wireless application protocol wireless application protocol (WAP) is an application environment and set of communication protocols for wireless devices designed to enable manufacturer and technology independent access to the internet and advanced telephony services

Wireless Application Protocol an open international standard for applications that use wireless communication, ...

 

EDGE. Модуляция


Базовой схемой модуляции, используемой в технологии EDGE, является восьмипозиционная фазовая манипуляция 8PSK. На рисунке показана исходная векторная диаграмма такого сигнала с сигнальным кодированием (маппинг, Mapping), которая приведена в нормативных документах [1,3.2].


Исходное сигнальное кодирование сигнала EDGE

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