Wireless Network Technician (WNT) Competency Requirements
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Broadband Glossary
Broadband Glossary This a non-exhaustive list of relevant terms relevant to broadband. © iStock by Getty Images -1077605220 Daniel Chetroni Page Contents # A B C D E F G H I K L M N O P R S T U V W X # 5G Fifth generation wireless technology for digital cellular networks A Access (to equipment, facilities, services etc.) The making available of facilities and/or services to another undertaking, under defined conditions, on either an exclusive or non-exclusive basis, for the purpose of providing electronic communications services, including when they are used for the delivery of information society services or broadcast content services. It covers inter alia: access to network elements and associated facilities, which may involve the connection of equipment, by fixed or non-fixed means (in particular this includes access to the local loop and to facilities and services necessary to provide services over the local loop); access to physical infrastructure including buildings, ducts and masts; access to relevant software systems including operational support systems; access to information systems or databases for pre-ordering, provisioning, ordering, maintaining and repair requests, and billing; access to number translation or systems offering equivalent functionality; access to fixed and mobile networks, in particular for roaming; access to conditional access systems for digital television services and access to virtual network services. ADC - Access Deficit Cost Cover the gap between tariff and costs - Access deficit arises when the tariff specified -
Telecommunication/ICT Indicators from Administrative Data Sources
Committed to Connecting the World ITU Regional Forum and Training Workshop on Telecommunication/ICT Indicators: Measuring the Information Society and ITU-ASEAN Meeting on Establishing National ICT Statistics Portals and Measuring ASEAN ICT targets Bangkok, 13-16 October 2014 Telecommunication/ICT indicators from administrative data sources Esperanza Magpantay/Susan Teltscher ICT Data and Statistics Division BDT/ ITU International Telecommunication Union © ITU 2014 Committed to Connecting the World Agenda . ITU Handbook . ITU indicators from administrative sources 2 © ITU 2014 Committed to Connecting the World ITU Handbook .Covers 81 indicators on telecommunication/ICT services .Covers data collected from administrative sources (e.g. telecom operators) .Reflects the outcome by ITU Expert Group on Telecom/ICT Indicators (EGTI) .Available in six ITU languages at: http://www.itu.int/pub/D-IND-ITC_IND_HBK- 2011 . Will be revised in 2015 3 © ITU 2014 Committed to Connecting the World ITU Handbook (cont.) Groupings: .Definition . Fixed-telephone networks . Mobile-cellular networks .Clarifications and . Internet scope . Traffic . Tariffs .Method of collection . Quality of service .Relationship with . Persons employed other indicators . Revenue . Investment .Methodological issues . Public access . Broadcasting and other .Examples indicators 4 © ITU 2014 Committed to Connecting the World ITU Handbook – updates . Revision of revenue and investment indicators . New indicators added . Fixed broadband and mobile QoS . Broadband Internet traffic . Pay-TV subscriptions . Mobile-broadband prices 5 © ITU 2014 Committed to Connecting the World Context: indicators from administrative sources 81 Indicators ITU Handbook . Data per operator Indicators collected in 65 ITU administrative Administrative . Sub-national questionnaires indicators data collected by countries . Data for market Core indicators on analysis ICT infrastructure 10 and access . -
3GPP Wireless Broadband Evolution
Wireless Broadband Evolution November 2007 Mikhail Krylov Director, QUALCOMM Mobile Services Are Becoming the Center of Life Mobile Communication Mobile Entertainment Mobile Enterprise Developing Markets Location Based Services Mobile Education Mobile Retail Mobile Healthcare 2 Wireless Broadband Evolution NetworkNetwork EvolutionEvolution MobileMobile DeviceDevice EvolutionEvolution ServiceService EvolutionEvolution • All-IP Network For Fixed-Mobile • Convergence of Communication, • User Behaviors Trend Convergence (VoIP & data) Computing & CE Platforms from Wired to Wireless • Co-existence of Different Access • Multi-mode Devices Connect • Same Rich IP Apps and Networks for Various Needs to Various Access Networks Services in all Environments –Coverage, Mobility, Capacity, –Service Requirements, –Ubiquitous & Consistent QoS, Data Rates … Availability, Cost … Experience Desired 3 Evolution of Wireless Technologies 1 – UMB (Ultra Mobile Broadband) - Previously referred to as Rev C LBC DL: Up to 288 Mbps peak³ 2 – Peak rates scalable with number of carriers – standard supports up to 15 UL: Up to 75 Mbps peak³ carriers. Upper range highlights introduction of 64-QAM (1 RF carrier – 4.9 Mbps peak) • Highly optimized OFDMA 3 – Expected rates for 20 MHz, FDD, 4x4 MIMO solution 4 – 1.25 MHz option also included in the standard DL: 6.2-73.5 Mbps peak² • 5-20 MHz carrier bandwidth4 UL: 3.6-27 Mbps peak² 5 – TDD mode is under discussion • VoIP • FDD & TDD5 Modes • Multi-Carrier Rev A • MIMO & SDMA Support • Lower delays & higher data rates DL: 3.1 -
Wireless LAN Technology: Current State and Future Trends
Wireless LAN Technology: Current State and Future Trends Zahed Iqbal Helsinki University of Technology Telecommunications Software and Multimedia Laboratory [email protected] Abstract In this paper, a comprehensive overview of the current state and future trends of Wireless Local Area Network (WLAN) has been presented. This document stud- ies and compares two most competing commercialy potential WLAN technologies, namely IEEE 802.11 and ETSI HiperLAN. This study also addresses the challenges of their coexistance and convengences towards a global standards. KEYWORDS: Wireless Local Area Network (WLAN), IEEE 802.11, ETSI, HiperLAN 1 Introduction Wireless Local Area Network (WLAN) is a flexible data communication system that can either replace or extend a wired LAN to provide added functionality. Using Radio Fre- quency (RF) technology, or Infrared (IR) WLANs transmit and receive data over the air, through wall, ceilings, and even cement structures, without wired cabling. A WLAN pro- vides all the features and benefits of traditional LAN technologies like Ethernet and Token Ring, but without the limitations of being connected by a cable. This provides greatly increased freedom and flexibility. [8] Wireless Local Area Networks have been used increasingly in many critical applications over the past few years, particularly since 1997 when the first IEEE802.11 WLAN standard was issued followed by its European competitor standard High Performance LAN (Hiper- LAN). In certain locations, the use of WLANs could save millions of dollars in cost and deployment time when compared to permanent wired networks. In other locations, WLAN services are complimentary to existing wired LANs adding the advantage of user mobility. -
QUESTION 20-1/2 Examination of Access Technologies for Broadband Communications
International Telecommunication Union QUESTION 20-1/2 Examination of access technologies for broadband communications ITU-D STUDY GROUP 2 3rd STUDY PERIOD (2002-2006) Report on broadband access technologies eport on broadband access technologies QUESTION 20-1/2 R International Telecommunication Union ITU-D THE STUDY GROUPS OF ITU-D The ITU-D Study Groups were set up in accordance with Resolutions 2 of the World Tele- communication Development Conference (WTDC) held in Buenos Aires, Argentina, in 1994. For the period 2002-2006, Study Group 1 is entrusted with the study of seven Questions in the field of telecommunication development strategies and policies. Study Group 2 is entrusted with the study of eleven Questions in the field of development and management of telecommunication services and networks. For this period, in order to respond as quickly as possible to the concerns of developing countries, instead of being approved during the WTDC, the output of each Question is published as and when it is ready. For further information: Please contact Ms Alessandra PILERI Telecommunication Development Bureau (BDT) ITU Place des Nations CH-1211 GENEVA 20 Switzerland Telephone: +41 22 730 6698 Fax: +41 22 730 5484 E-mail: [email protected] Free download: www.itu.int/ITU-D/study_groups/index.html Electronic Bookshop of ITU: www.itu.int/publications © ITU 2006 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. International Telecommunication Union QUESTION 20-1/2 Examination of access technologies for broadband communications ITU-D STUDY GROUP 2 3rd STUDY PERIOD (2002-2006) Report on broadband access technologies DISCLAIMER This report has been prepared by many volunteers from different Administrations and companies. -
Understanding Mmwave for 5G Networks 1
5G Americas | Understanding mmWave for 5G Networks 1 Contents 1 Introduction ..................................................................................................................................................... 6 2 Status of Millimeter Wave Spectrum ............................................................................................................. 9 2.1 Regional Status ........................................................................................................................................... 9 2.2 Global Millimeter Wave Auctions .............................................................................................................12 3 Millimeter Wave Technical Rules in the United States ...............................................................................15 3.1 Licensed Spectrum ..................................................................................................................................15 3.2 Lightly Licensed .......................................................................................................................................16 3.3 Unlicensed Spectrum ..............................................................................................................................17 4 Millimeter Wave Challenges and Opportunities ..........................................................................................19 4.1 Losses in Millimeter Wave .......................................................................................................................19 -
WIRELESS LOCAL LOOP in DEVELOPING COUNTRIES: IS IT TOO SOON for DATA? the Case of Kenya
WIRELESS LOCAL LOOP IN DEVELOPING COUNTRIES: IS IT TOO SOON FOR DATA? The case of Kenya by MUGO KIBATI MBA, International Business MA, International Economics George Washington University, 1997 B.S., Electrical Engineering Moi University, 1991 Submitted to the Technology and Policy Program in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE IN TECHNOLOGY AND POLICY at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY May, 1999 1999 Mugo Kibati. All rights reserved The author hereby grants to MIT permission to reproduce and to distribute publicly paper and electronic copies of this thesis for the purpose of publishing other works. Signature of Author Technology Policy Program May 14, 1999 Certified by Sharon Eisner Gillett Research Associate, Internet and Telecoms Convergence Consortium Thesis Supervisor Certified by Professor Richard de Neufville Chairman, Technology and Policy Program WIRELESS LOCAL LOOP IN DEVELOPING COUNTRIES: IS IT TOO SOON FOR DATA? The case of Kenya by Mugo Kibati Submitted the Technology and Policy Program in Partial Fulfillment of the Requirements for the Degree of Master of Science in Technology and Policy May 1999 ABSTRACT The demand for data communications in Kenya is growing at a steady rate. Information technologies have become ubiquitous all over the world, including in developing countries like Kenya. Already, educational, health and trade networks connecting remote regions to the rest of the world are taking advantage of the Internet phenomenon. Banks, insurance and financial services firms, and other corporations need data communications for real time information gathering, automated remote services, intra-corporate voice and data communications, etc. However, like in many developing countries, communications infrastructure in Kenya is woefully underdeveloped and ill prepared to satisfy the increasing demand for data communications. -
5G: Issues & Challenges
RÉPUBLIQUE FRANÇAISE 5G: ISSUES & CHALLENGES March 2017 The issues and challenges surrounding 5G The telecoms industry is currently in the process of designing the technologies that are due to take over from 4G, which is still being deployed today. A great deal of work is thus underway to prepare these “5G” technologies. To prepare for the arrival of this new generation of technologies, Arcep wanted to take a detailed look at the industry to better understand what is in the works. This report is the fruit of the interviews and research that Arcep conducted over the course of 2016, and which the Authority wanted to publish as a way to contribute to the public debate over 5G. Its aim it to provide as objective and exhaustive an overview as possible, and deliver a concise, informative snapshot of the work that is currently underway on the future generation of mobile networks. This report reflects the views of the stakeholders who were interviewed, but in no way represents Arcep’s positions on or roadmap for 5G. Arcep awarded in 2015 the 700 MHz band and is currently working towards licensing the 3.5 GHz band, both of which have been identified as 5G bands. Arcep is also working with the Direction générale des entreprises and the Agence nationale des fréquences towards enabling spectrum for 5G. Arcep would like to thank all of the entities (listed on the last page) who agreed to take part in this process, and who were willing to contribute to the regulator’s investigation into the development of 4G’s successor. -
Migration to 3G Wireless Broadband Internet and Real Options: the Case of an Operator in India
ARTICLE IN PRESS Telecommunications Policy 30 (2006) 400–419 www.elsevierbusinessandmanagement.com/locate/telpol Migration to 3G wireless broadband internet and real options: The case of an operator in India Venkata Praveen TanguturiÃ, Fotios C. Harmantzis Telecommunications Management, School of Technology Management, Stevens Institute of Technology, Hoboken, NJ 07030, USA Abstract The paper focuses on third generation wireless technologies and on alternative technologies for wireless local area networks. The authors present the evolutionary migration path from second to third generation systems. Technological, economic and behavioral factors related to decision-making towards the migration are proposed. As an example, the paper studies the case of the national incumbent operator of India. It analyzes qualitatively the migration problem from the perspective of the operator, the equipment manufacturer and the users. For the quantitative analysis, real options are used to value the investment decisions. The analysis suggests that the initial (sunk) investment cost, the average revenue per user, the growth of the subscriber base and the volatility of the markets are the key factors in the investment process. r 2006 Elsevier Ltd. All rights reserved. Keywords: 3G; GSM; CDMA; Wireless; Broadband; India; UMTS; India; Wi-Fi; Real options 1. Introduction The evolution of the internet has led to the convergence of telecommunications networks and computers. Benefits associated with the World Wide Web (WWW) are of great importance nowadays: people are able to communicate via e-mail, perform data transfers, online shopping, online auctions, etc. Traditionally, internet services have been provided by internet service providers (ISPs) using modems, with data rates limited to 56.6 kbp. -
Structure of IEEE 802.11 Packets at Various Physical Layers
Appendix A: Structure of IEEE 802.11 Packets at Various Physical Layers This appendix gives a detailed description of the structure of packets in IEEE 802.11 for the different physical layers. 1. Packet Format of Frequency Hopping Spread-spectrum Physical Layer (FHSS PHY) The packet is made up of the following elements (Figure A.1): 1.1 Preamble It depends on the physical layer and includes: – Synch: a sequence of 80 bits alterning 0 and 1, used by the physical circuits to select the correct antenna (if more than one are in use), and correct offsets of frequency and synchronization. – SFD: start frame delimiter consists of a pattern of 16 bits: 0000 1100 1011 1101, used to define the beginning of the frame. 1.2 Physical Layer Convergence Protocol Header The Physical Layer Convergence Protocol (PLCP) header is always transmitted at 1 Mbps and carries some logical information used by the physical layer to decode the frame: – Length of word of PLCP PDU (PLW): representing the number of bytes in the packet, useful to the physical layer to detect correctly the end of the packet. – Flag of signalization PLCP (PSF): indicating the supported rate going from 1 to 4.5 Mbps with steps of 0.5 Mbps. Even though the standard gives the combinations of bits for PSF (see Table A.1) to support eight different rates, only the modulations for 1 and 2 Mbps have been defined. – Control error field (HEC): CRC field for error detection of 16 bits (or 32 bits). The polynomial generator used is G(x)=x16 + x12 + x5 +1. -
The Spirit of Wi-Fi
Rf: Wi-Fi_Text Dt: 09-Jan-2003 The Spirit of Wi-Fi where it came from where it is today and where it is going by Cees Links Wi-Fi pioneer of the first hour All rights reserved, © 2002, 2003 Cees Links The Spirit of Wi-Fi Table of Contents 0. Preface...................................................................................................................................................1 1. Introduction..........................................................................................................................................4 2. The Roots of Wi-Fi: Wireless LANs...................................................................................................9 2.1 The product and application background: networking ..............................................................9 2.2 The business background: convergence of telecom and computers? ......................................14 2.3 The application background: computers and communications ...............................................21 3. The original idea (1987 – 1991).........................................................................................................26 3.1 The radio legislation in the US .................................................................................................26 3.2 Pioneers .....................................................................................................................................28 3.3 Product definition ......................................................................................................................30 -
WIRELESS FIDELITY (Wi-Fi) BROADBAND NETWORK TECHNOLOGY: an OVERVIEW with OTHER BROADBAND WIRELESS NETWORKS
WIRELESS FIDELITY (Wi-Fi) BROADBAND NETWORK TECHNOLOGY: AN OVERVIEW WITH OTHER BROADBAND WIRELESS NETWORKS by Chris A. Nwabueze, M. Eng., MNSE, MNIEEE, MIEE. Silas A. Akaneme, M. Eng., MNSE, MNIEEE, MIEEE Dept. of Electrical/Electronic Engineering, Anambra State University, Uli. E-mail: [email protected]. ABSTRACT Wireless Fidelity (Wi-Fi) broadband network technology has made tremendous impact in the growth of broadband wireless networks. There exists today several Wi-Fi access points that allow employees, partners and customers to access corporate data from almost anywhere and anytime. Wireless broadband networks are expected to grow in terms of broadband speed and coverage, while Wi-Fi can be integrated with WiMAX networks to provide Internet connectivity to mobile Wi-Fi users. This paper explores the Wi-Fi broadband wireless network technology, its uses, advantages and disadvantages, comparison with other broadband wireless networks and integration with WiMAX network. Key Words: Broadband, Wireless Fidelity (Wi-Fi), World Wide Interoperability for Microwave Access (WiMAX), IEEE 802.11 standards. 1.0 INTRODUCTION 802.11a [12]. Wi-Fi is owned by the Wi-Fi Wi-Fi stands for “Wireless Fidelity” and Alliance which is a consortium of separate was used to describe Wireless LAN and independent companies agreeing to a (WLAN) products that are based on the set common interoperable products based IEEE 802.11 standards. Wi-Fi uses both on the family of IEEE 802.11 standards single carrier direct-sequence spread [11]. spectrum radio technology and multi-carrier Wi-Fi certifies products via a set of OFDM (Orthogonal Frequency Division established test procedures to establish Multiplexing) radio technology.