HD Voice Annex C Minimum Requirements with GSM/UMTS/LTE
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3G/UMTS an Evolutionary Path to Next Generation Networks
3G/UMTS An evolutionary path to Next Generation Networks ITU/BDT Regional Seminar on Fixed Mobile Convergence and Guidelines on the smooth transition of existing mobile networks to IMT-2000 for Developing Countries for Africa Jean-Pierre Bienaimé …………………………………………………………………………… Chairman, UMTS Forum www.umts-forum.org ITU/BDT Regional Seminar Nairobi 9-12 May 2005 Summary • What is the UMTS Forum? • What is the global status of 3G/UMTS launches? • What terminals, services and tariffs are available? • 3G/UMTS evolution from launch through to Release 6 • A look to the future • Viewpoint on spectrum • Lessons learned in Europe ITU/BDT Regional Seminar Nairobi 9-12 May 2005 1 About The UMTS Forum Who are we? An international, cross-sector industry body comprising operators, manufacturers, regulators, application developers, research organisations and IT industry players. Our mission… To promote a common vision of the development of 3G/UMTS and of its evolutions, and to ensure its worldwide commercial success. Our publications Since 1997, more than 40 reports on Spectrum & Regulation, 3G/UMTS vision, Customer behaviour, Market evolution & Forecasts, Technical studies & Implementation. Recent issues: Strategic Considerations for IMS – the 3G Evolution, Coverage Extension Bands for UMTS/IMT-2000 in the bands between 470-600 MHz, Magic Mobile Future 2010-2020… ITU/BDT Regional Seminar Nairobi 9-12 May 2005 UMTS Forum Key Areas of Activity in 2005 Spectrum & Regulation Studies and contributions on harmonisation of global spectrum and additional -
Unlicensed Lte Interference to Wi-Fi When Operating Co-Channel
UNLICENSED LTE INTERFERENCE TO WI-FI WHEN OPERATING CO-CHANNEL Christopher Szymanski 1 | © 2016 Broadcom Limited. All rights reserved. WI-FI DEMAND EVER-INCREASING Wi-Fi Cumulative Product Shipments and Installed Base of Products 2000-2020 35,000.0 Installed Base 30,000.0 Cumulative Shipments Approaching 15 billion cumulative shipments and 7.5 billion Wi-Fi install base 25,000.0 20,000.0 15,000.0 10,000.0 5,000.0 - 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Source: ABI Research: Cumulative Wi-Fi-enabled Product Shipments and Installed Base of Wi-Fi-enabled Products World Market, Forecast: 2000 to 2020. 2 | © 2016 Broadcom Limited. All rights reserved. WI-FI IS PREDOMINATE WAY FOR PEOPLE TO ACCESS INTERNET; IN SOME INSTANCES THE ONLY WAY • Cisco: Mobile data traffic increased 74% in 2015, reaching 3.7 exabytes per month [1] • Over 80% of mobile data traffic goes over Wi-Fi – Strategy Analytics’ Telemetry Intelligence Platform: From 2H13 to 1H15 Wi-Fi traffic grew at over 2X the rate of cellular traffic, accounting for ~83% of wireless traffic [2] – Analysys Mason: 81% of smart phone traffic is carried over Wi-Fi [3] – Mobidia: “Wi-Fi dominating monthly data usage” [4] – iOS users consume 82% of wireless data over Wi-Fi – Android users consume 78% of wireless data over Wi-Fi • Pew Internet Research: In-home Broadband access decreasing, increasing number of “smartphone-only” adults (13% of Americans are smartphone-only, and shift most pronounced among lower income households) [5] -
Network 2020: Mission Critical Communications NETWORK 2020 MISSION CRITICAL COMMUNICATIONS
Network 2020: Mission Critical Communications NETWORK 2020 MISSION CRITICAL COMMUNICATIONS About the GSMA Network 2020 The GSMA represents the interests of mobile operators The GSMA’s Network 2020 Programme is designed to help worldwide, uniting nearly 800 operators with almost 300 operators and the wider mobile industry to deliver all-IP companies in the broader mobile ecosystem, including handset networks so that everyone benefits regardless of where their and device makers, software companies, equipment providers starting point might be on the journey. and internet companies, as well as organisations in adjacent industry sectors. The GSMA also produces industry-leading The programme has three key work-streams focused on: The events such as Mobile World Congress, Mobile World Congress development and deployment of IP services, The evolution of the Shanghai, Mobile World Congress Americas and the Mobile 360 4G networks in widespread use today The 5G Journey, developing Series of conferences. the next generation of mobile technologies and service. For more information, please visit the GSMA corporate website For more information, please visit the Network 2020 website at www.gsma.com. Follow the GSMA on Twitter: @GSMA. at: www.gsma.com/network2020 Follow the Network 2020 on Twitter: #Network2020. With thanks to contributors: DISH Network Corporation EE Limited Ericsson Gemalto NV Huawei Technologies Co Ltd KDDI Corporation KT Corporation NEC Corporation Nokia Orange Qualcomm Incorporated SK Telecom Co., Ltd. Telecom Italia SpA TeliaSonera -
A Survey of Resource Allocation Techniques for Cellular Network's
electronics Review A Survey of Resource Allocation Techniques for Cellular Network’s Operation in the Unlicensed Band Mohammedhusen Manekiya 1 , Abhinav Kumar 2 , Ashish Yadav 3 and Massimo Donelli 1,* 1 Department of Information Engineering and Computer Science, University of Trento, 38123 Trento, Italy; [email protected] 2 Department of Electrical Engineering, Indian Institute of Technology Hyderabad, Telangana 502285, India; [email protected] 3 Department of Electrical and Computer Engineering, Tandon School of Engineering, New York University, Brooklyn, NY 11201, USA; [email protected] * Correspondence: [email protected]; Tel.: +39-3297-00-4115 Received: 1 August 2020; Accepted: 27 August 2020; Published: 7 September 2020 Abstract: With an ever increasing demand for data, better and efficient spectrum operation has become crucial in cellular networks. In this paper, we present a detailed survey of various resource allocation schemes that have been considered for the cellular network’s operation in the unlicensed spectrum. The key channel access mechanisms for cellular network’s operation in the unlicensed bands are discussed. The various channel selection techniques are explored and their operation explained. The prime issue of fairness between cellular and Wi-Fi networks is discussed, along with suitable resource allocation techniques that help in achieving this fairness. We analyze the coverage, capacity, and impact of coordination in LTE-U systems. Furthermore, we study and discuss the impact and discussed the impact of various traffic type, environments, latency, handover, and scenarios on LTE-U’s performance. The new upcoming 5G New Radio and MulteFire is briefly described along with some of the critical aspects of LTE-U which require further research. -
AT&T 3G Sunset
Product Change Notification AT&T 3G Sunset - Impacts on 4G Devices LTE Category 1, Category 3 and Select Category 4 Models Date: March 9, 2021 I. Product Change Notification Number (PCN) PCN 03092021-02 II. Overview The purpose of this PCN is to avoid service interruption for certain MultiTech 4G products impacted by the impending AT&T 3G network sunset. 4G/LTE Category 1, 3 and 4 devices in the U.S. may no longer attach to the AT&T network after their 3G network sunset, scheduled for late February 2022. Voice-capable cellular modules integrated into several MultiTech products are configured for voice-centric signaling by default. These devices are likely to arrive at a No Service condition after 3G sunset -- even for data-only applications. This is a result of the module requiring a voice signal to connect to networks configured to leverage a combined attach (3G and LTE) for LTE device registration. The MultiTech products detailed in this PCN will be impacted by the 3G sunset. A software configuration change in the cellular module in these products is required in order to avoid a No Service condition. The only exception is for products with cellular modules supporting the IMS service Voice over LTE (VoLTE) and an accompanying VoLTE subscription from your service provider. MultiTech will immediately implement a software configuration change in our manufacturing process to include the required AT command to set a new permanent module default for its User Equipment (“UE”) settings. Note: future module firmware updates may impact this setting. Current default: CEMODE=1 (Voice centric) New default: CEMODE=2 (Data centric) For devices already deployed in the field, you must implement the above mentioned software- configuration change in each device to ensure continued service following the 3G sunset. -
LTE-Advanced
Table of Contents INTRODUCTION........................................................................................................ 5 EXPLODING DEMAND ............................................................................................... 8 Smartphones and Tablets ......................................................................................... 8 Application Innovation .............................................................................................. 9 Internet of Things .................................................................................................. 10 Video Streaming .................................................................................................... 10 Cloud Computing ................................................................................................... 11 5G Data Drivers ..................................................................................................... 11 Global Mobile Adoption ........................................................................................... 11 THE PATH TO 5G ..................................................................................................... 15 Expanding Use Cases ............................................................................................. 15 1G to 5G Evolution ................................................................................................. 17 5G Concepts and Architectures ................................................................................ 20 Information-Centric -
ETSI TS 123 101 V8.0.0 (2009-01) Technical Specification
ETSI TS 123 101 V8.0.0 (2009-01) Technical Specification Universal Mobile Telecommunications System (UMTS); LTE; General UMTS Architecture (3GPP TS 23.101 version 8.0.0 Release 8) 3GPP TS 23.101 version 8.0.0 Release 8 1 ETSI TS 123 101 V8.0.0 (2009-01) Reference RTS/TSGS-0223101v800 Keywords LTE, UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. -
Multefire Release 1.1 Technical Overview White Paper Radio Spectrum
MulteFire Release 1.1 Technical Overview White Paper radio spectrum. MulteFire Release 1.0 builds on 3GPP I. Introduction standards and is targeted for operation in the global 5 GHz unlicensed spectrum band but can be used MulteFire® is an innovative technology that enables for any band that needs over-the-air contention. It new wireless networks by operating cellular-based is designed to efficiently coexist with other spectrum technology standalone in unlicensed or shared users, such as Wi-Fi or Licensed Assisted Access spectrum. MulteFire 1.0, and its enhancements (LAA), using Listen-Before-Talk (LBT). in 1.1, is an LTE-based technology that operates standalone in unlicensed spectrum, with a roadmap The Release 1.1 specification, completed in December to future solutions based on 5G New Radio (NR). By 2018, brings new optimizations especially for IoT, removing the requirement for licensed spectrum, such as support for NB-IoT and eMTC in unlicensed MulteFire allows anyone to deploy and operate spectrum; support for new bands such as 1.9 GHz their own private network, targeting areas such as focusing on Japan and lower bands 800/900; and Industrial IoT or enterprises. MulteFire can also be general enhancements to Release 1.0. As Release configured as a neutral host network, e.g. for an 1.0 establishes the foundation for the Release 1.1 enterprise or venues, to serve users from multiple specification, this paper starts with a brief Release operators. 1.0 overview. Release 1.0 defines an end-to-end architecture design and radio air interface to deliver The LTE-based MulteFire Release 1.0 specification key performance advantages over alternative was completed in January 2017 by the MulteFire solutions in unlicensed spectrum, such as coverage, Alliance, which is an open, international organization capacity and mobility. -
UMTS Overview
UMTS overview David Tipper Associate Professor Graduate Telecommunications and Networking Program University of Pittsburgh 2720 Slides 12 UMTS • ETSI proposed GSM/NA-TDMA /GPRS evolution under name Universal Mobile Telecom. Services (UMTS) • Most of 3G licenses in Europe required operator to deploy a UMTS system covering x% of population by a specific date y – Germany: 25% of population by 12/03, 50% by 12/05 –Norway: 80% of population by 12/04 – In most countries operators have asked for and received deployment delay due to dot.com bust and equipment delays • Estimate 2.5 Billion euros to deploy a 5000 base station UMTS system • According to UMTS Forum – More than 90 million UMTS users as of 10/06 on operating networks in more than 50 countries – Most deployments of UMTS in Europe (~40% of market) and Pacific Rim (~38% market) Telcom 2720 2 UMTS • UMTS is a complete system architecture – As in GSM emphasis on standardized interfaces • mix and match equipment from various vendors – Simple evolution from GPRS – allows one to reuse/upgrade some of the GPRS backhaul equipment – Backward compatible handsets and signaling to support intermode and intersystem handoffs • Intermode; TDD to FDD, FDD to TDD • Intersystem: UMTS to GSM or UMTS to GPRS – UMTS supports a variety of user data rates and both packet and circuit switched services – System composed of three main subsystems Telcom 2720 3 UMTS System Architecture Node B MSC/VLR GMSC PSTN RNC USIM Node B HLR ME Internet Node B RNC SGSN GGSN Node B UE UTRAN CN External Networks • UE (User Equipment) that interfaces with the user • UTRAN (UMTS Terrestrial Radio Access Network) handles all radio related functionality – WCDMA is radio interface standard here. -
XP5 Push-To-Talk General English
Push–to–Talk – General What is Enhanced Push-to-talk (EPTT)? Enhanced Push-to-talk (EPTT) is a special feature on a mobile phone that combines the functionality of a walkie-talkie or 2-way radio with the normal handset features. It provides simple communication to a group of people with just a press of a button. It allows the customer to instantly reach other EPTT contacts by eliminating the dialing and ringing steps in a regular cellular call. EPTT calls can be made to one person or to a group of people. It is also referred to as Push to Talk over Cellular (PoC) How does EPTT work? EPTT is based on half-duplex communication (ability to speak over the same channel but not at the same time). It uses Voice over internet protocol (VoIP). The person, who talks, keeps the EPTT button pressed, while others can only listen. Thereafter the speaker releases the EPTT button, and the next speaker presses the button and starts talking. An EPTT call will end when the caller ends the call. However, other speakers of the group can end their call session, any time. Is EPTT number different from my mobile number? No, the EPTT phone number is the same as your 10 digit mobile number. But this number should be provisioned by the operator for EPTT to work. Can I make/receive an EPTT call without using the speaker phone? EPTT calls are generally started over the speaker phone but can be changed to the earpiece at any time. You can listen to EPTT calls through your phone’s speaker or earpiece. -
Global Deployments of Technologies Utilizing IMT Specifications and Standards
Global Deployments of Technologies Utilizing IMT Specifications and Standards WP5A-WP5B-WP5C Discussion on the Preparations for WRC-15 Mr. Stephen BLUST Chairman Working Party 5D Presented by Mr. Jim RAGSDALE Ver. 6 (5-3-2012) All rights Reserved 1 © 2012 The Technologies of IMT 2 The Technologies of IMT IMT‐2000 Technologies: • Recommendation ITU‐R M.1457‐10, Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications‐ 2000 (IMT‐2000) • First Released in year 2000 • Updated approximately annually to accommodate the continuous improvement/evolution of the technology ‐ Revision 11 in progress • Six Technologies in IMT‐2000 today • IMT‐2000 CDMA Direct Spread • IMT‐2000 CDMA Multi‐Carrier • IMT‐2000 CDMA TDD • IMT‐2000 TDMA Single‐Carrier • IMT‐2000 FDMA/TDMA • IMT‐2000 OFDMA TDD WMAN. • Market dominant IMT‐2000 technologies based on 2012 deployments & future projections • IMT‐2000 CDMA Direct Spread (also known as UTRA FDD, WCDMA, or UMTS/HSPA developed by 3GPP partnership project) • IMT‐2000 CDMA Multi‐Carrier (also known as cdma2000 developed by 3GPP2 partnership project) • IMT‐2000 CDMA TDD (also known as TD‐SCDMA) 3 The Technologies of IMT IMT‐Advanced Technologies: • Recommendation ITU‐R M.2012, Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications Advanced (IMT‐Advanced) • Call for technology proposals in March 2008 (5/LCCE/2) • Candidate Technology Proposals Received in October 2009 & Evaluation/Selection of Technologies for IMT‐Advanced completed in December 2010 • First Release of M.2012 in year 2012 ‐ Revision 1 in progress to accommodate the underway improvement/evolution of the technology • Two Technologies in IMT‐Advanced today • “LTE‐Advanced” ‐ Developed by 3GPP as LTE Release 10 and Beyond (LTE‐ Advanced). -
GSM Dual-Band GPRS Digital Mobile Phone User Manual the Manual Is Applicable for R235 Mobile Phone
GSM Dual-Band GPRS Digital Mobile Phone User Manual The manual is applicable for R235 mobile phone LEGAL INFORMATION Copyright © 2010 by ZTE CORPORATION All Rights Reserved. No part of this publication may be excerpted, reproduced, translated or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without the prior written permission of ZTE Corporation. The manual is published by ZTE Corporation. We reserve the right to make modifications on print errors or update specifications without prior notice. Version No. : R1.0 Edition Time : 20101216 Manual No. : 079584502371 Contents Security ....................................4 Sending MMS.........................25 Safety Precautions..................4 Receiving messages.............26 Limitation of Liability ............12 Call History ............................27 Key functions ........................13 Personalizing phone ............27 Indicator icons......................16 User Profiles ..........................29 Battery....................................16 Setting alarm..........................29 Inserting SIM card .................19 View Image.............................29 Inserting memory card .........20 Play Music..............................30 Powering on/ off phone ........21 File Manager ..........................30 Writing text.............................21 WAP ........................................31 Adding a contact ...................23 FM Radio ................................32 Making and receiving calls...24