LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) Conformance Testing (3GPP TS 36.141 Version 11.6.1 Release 11)
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Frequency and Network Planning Aspects of DVB-T2
Report ITU-R BT.2254 (09/2012) Frequency and network planning aspects of DVB-T2 BT Series Broadcasting service (television) ii Rep. ITU-R BT.2254 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http://www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Reports (Also available online at http://www.itu.int/publ/R-REP/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management Note: This ITU-R Report was approved in English by the Study Group under the procedure detailed in Resolution ITU-R 1. -
Revision of ST61, Nor Was the Stockholm Agreement of 1961 the First Broadcasting Frequency Plan
SPECTRUM PLANNING Revision of ST61— Lessons learned from history J. Doeven Nozema, the Netherlands Over the next few years, the Stockholm Frequency Plan of 1961 will be revised to produce a new plan for digital broadcasting in the European Broadcasting Area. In this article, the author describes some of the lessons learned from history which must be taken into account when revising the original Stockholm Plan. Introduction In June 2001, the ITU Council decided – on the basis of a proposal from European countries – that the Stock- holm Agreement of 1961 (ST61) shall be revised in order to make a new frequency plan for digital broadcast- ing. The conference to revise ST61 will consist of two sessions. The first session is planned for May 2004; the second session is foreseen in 2005 or 2006. This conference will not be the first revision of ST61, nor was the Stockholm Agreement of 1961 the first broadcasting frequency plan. Since the start of broadcasting there has been a need for a-priori frequency plans; i.e. frequency plans that are made at a conference and are valid for a long period of time, often 15 or more years. Actually, the Stockholm Plan of 1961 has been in use for more than 40 years! In retrospect, the results achieved at some earlier broadcasting conferences 1 can be reviewed and weighted against the principal conditions required for establishing a-priori plans. The conclusions drawn from this exer- cise may then provide a valuable lesson from history as we prepare for the revision of ST61. A-priori plans Around 1920, broadcasting started in a number of countries. -
Provisioning in Multi-Band Optical Networks
2598 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 38, NO. 9, MAY 2020 Provisioning in Multi-Band Optical Networks Nicola Sambo , Alessio Ferrari , Antonio Napoli , Nelson Costa, João Pedro , Bernd Sommerkorn-Krombholz, Piero Castoldi , and Vittorio Curri (Highly-Scored Paper) Abstract—Multi-band (MB) optical transmission promises to transmission bands beyond C – where SMF can propagate light extend the lifetime of existing optical fibre infrastructures, which in single mode.1 First upgrades to L-band have been carried + usually transmit within the C-band only, with C L-band being out for example in [4]. At the moment, advanced research is also used in a few high-capacity links. In this work, we propose a physical-layer-aware provisioning scheme tailored for MB systems. considering S- [5], [6] and U-band [7] for transmission. Recent This solution utilizes the physical layer information to estimate, improvements on optical components have demonstrated, for by means of the generalized Gaussian noise (GGN) model, the example, wideband amplifiers [8], [9] and transceivers [10] with generalized signal-to-noise ratio (GSNR). The GSNR is evaluated improved optical performance. Moreover, MB transmission is assuming transmission up to the entire low-loss spectrum of optical also supported by the large amount of deployed optical fibers fiber, i.e., from 1260 to 1625 nm. We show that MB transmission may lead to a considerable reduction of the blocking probability, with negligible absorption peak at short wavelengths [11]. despite the increased transmission penalties resulting from using Until now, networking studies — e.g., on lightpath provi- additional optical fiber transmission bands. Transponders support- sioning and routing and spectrum assignment — have focused ing several modulation formats (polarization multiplexing – PM – mainly on C-band systems [12]–[16]. -
UMTS); Requirements on Ues Supporting a Release-Independent Frequency Band (3GPP TS 25.307 Version 5.3.0 Release 5)
ETSI TS 125 307 V5.3.0 (2004-09) Technical Specification Universal Mobile Telecommunications System (UMTS); Requirements on UEs supporting a release-independent frequency band (3GPP TS 25.307 version 5.3.0 Release 5) 3GPP TS 25.307 version 5.3.0 Release 5 1 ETSI TS 125 307 V5.3.0 (2004-09) Reference RTS/TSGR-0225307v530 Keywords 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. -
MMM7210 WCDMA/GSM/EDGE Transceiver
Freescale Semiconductor Document Number: MMM7210 Data Sheet: Technical Data Rev. 2.2, 07/2010 MMM7210 MMM7210 LGA–170 WCDMA/GSM/EDGE Ordering Information Transceiver Device Device Marking Package MMM7210B MMM7210 170 pin LGA 1 Introduction Contents 1 Introduction . .1 The MMM7210 transceiver is a highly integrated 2 Features . .2 transceiver that supports 3GPP WCDMA/GSM/EGPRS 3 MMM7210 Signal Description . .3 wireless standards. The digital input/output of the 4 Electrostatic Discharge Characteristics . .8 MMM7210 interfaces directly to a baseband processor 5 Electrical Characteristics . .9 using either Freescale legacy interface (FLI) or standard 6 MMM7210 Applications Circuit . .27 3G DigRF interfaces. 7 Package Information and Pinout . .30 8 Product Documentation . .33 The MMM7210 receiver has five independent RF inputs which encompass all wireless band combinations. Each path supports three primary modes of operation: a reduced current and gain state to support WCDMA with an external LNA and interstage SAW, an EGPRS mode in which the LNA is connected directly to a SAW, and a high linearity mode to support WCDMA operation when directly matched to a duplexor. The three different modes provide approximately the same input impedances such that, even though the input match is optimized for one mode, all three modes are usable. Multi-mode RF inputs are converted to a common baseband path which is shared between WCDMA and EGPRS. This common baseband path is optimized for die area and current consumption through the use of a Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. -
Latest Transmitter Technology for VHF Band
Broadcasting and audio/video technology | Transmitter systems Latest transmitter technology for VHF band III Radio and television are celebrating a comeback in VHF band III as the UHF band is increasingly dedicated to other applications such as wireless communications. With the R&S®TMV9 medium-power transmitters and the R&S®THV9 high-power transmitters, network operators are now able to use the latest technology in this frequency band, too. Broadcasting in VHF band III is gaining new momentum Terrestrial broadcasting transmitters for UHF bands IV/V have somewhat overshad- owed transmitters for VHF band III over the past few years. That’s changing with the digital dividend, which has brought increased significance to band III for ana- log and digital TV as well as for digital audio broadcasting. This is because regula- tory authorities in many countries have instructed broadcast network operators to release frequencies in the UHF band so that they can be available for other appli- cations such as wireless communications. Free channels in VHF band III can be used for analog and digital TV. In addition, digital audio broadcasting in line with Fig. 1: Liquid-cooled R&S®THV9 high-power the DAB(+) standard will be implemented in this band. DAB(+) networks are being VHF transmitter featuring 5.2 kW output power expanded in some regions, while new, nationwide networks are being built in oth- from four amplifiers. ers. Broadcasting in VHF band III is gaining momentum. To accommodate this transition, Rohde & Schwarz has announced two new com- pact transmitter families that provide network operators with peak values in energy efficiency, power density and flexibility. -