It took more than 15 years of research, standardization work, and develop- ment with an enormous effort of manpower to bring third generation (3G) wireless communication systems to life. The first research work on 3G sys- tems started around 1988 [1]. At this time the striking success of second generation (2G) systems, especially of GSM (Global System for Mobile Com- munications), was not yet evident. A substantial part of these early research activities took place in Europe and was sponsored by the European Commis- sion in the course of research programs such as: Research and Development of Advanced Communications Technologies in Europe (RACE-I, RACE-2) and Advanced Communications Technology and Services (ACTS) [2]. Even before these activities, 3G systems were considered in 1992 at the WARC (World Administrative Radio Conference), where 230 MHz of spectrum around 2 GHz was identified for 3G, and in standardization bodies like the ITU (Interna- tional Telecommunications Union) from a global perspective and ETSI (Eu- ropean Telecommunications Standards Institute) in Europe. At the present time 3G networks are deployed or are already operating (e. g., in Japan the first commercial 3G system started its service in October 2001). Unfortu- nately, the initial idea to create one single 3G standard to allow for seam- less world-wide roaming could not be realized. However, three of the five members of the so-called IMT-2000 (International Mobile Telecommunica- tions, the official acronym for 3G systems) family of standards are based on Wideband-CDMA (Code Division Multiple Access).
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
Vendeur : Books Puddle, New York, NY, Etats-Unis
Etat : New. pp. 316. N° de réf. du vendeur 262177967
Quantité disponible : 1 disponible(s)
Vendeur : Majestic Books, Hounslow, Royaume-Uni
Etat : New. pp. 316 Illus. N° de réf. du vendeur 5670000
Quantité disponible : 1 disponible(s)
Vendeur : Biblios, Frankfurt am main, HESSE, Allemagne
Etat : New. pp. 316. N° de réf. du vendeur 182177957
Quantité disponible : 1 disponible(s)
Vendeur : Ria Christie Collections, Uxbridge, Royaume-Uni
Etat : New. In. N° de réf. du vendeur ria9783540421627_new
Quantité disponible : Plus de 20 disponibles
Vendeur : moluna, Greven, Allemagne
Gebunden. Etat : New. One of the first books to describe this new standard that will be launched commercially in 2002 Based on lectures given at a topical international conference UMTS will unify the separate the European and American current standards It is designed for mobile . N° de réf. du vendeur 4889652
Quantité disponible : Plus de 20 disponibles
Vendeur : AHA-BUCH GmbH, Einbeck, Allemagne
Buch. Etat : Neu. Neuware - It took more than 15 years of research, standardization work, and develop ment with an enormous effort of manpower to bring third generation (3G) wireless communication systems to life. The first research work on 3G sys tems started around 1988 [1]. At this time the striking success of second generation (2G) systems, especially of GSM (Global System for Mobile Com munications), was not yet evident. A substantial part of these early research activities took place in Europe and was sponsored by the European Commis sion in the course of research programs such as: Research and Development of Advanced Communications Technologies in Europe (RACE-I, RACE-2) and Advanced Communications Technology and Services (ACTS) [2]. Even before these activities, 3G systems were considered in 1992 at the WARC (World Administrative Radio Conference), where 230 MHz of spectrum around 2 GHz was identified for 3G, and in standardization bodies like the ITU (Interna tional Telecommunications Union) from a global perspective and ETSI (Eu ropean Telecommunications Standards Institute) in Europe. At the present time 3G networks are deployed or are already operating (e. g. , in Japan the first commercial 3G system started its service in October 2001). Unfortu nately, the initial idea to create one single 3G standard to allow for seam less world-wide roaming could not be realized. However, three of the five members of the so-called IMT-2000 (International Mobile Telecommunica tions, the official acronym for 3G systems) family of standards are based on Wideband-CDMA (Code Division Multiple Access). N° de réf. du vendeur 9783540421627
Quantité disponible : 1 disponible(s)
Vendeur : Mispah books, Redhill, SURRE, Royaume-Uni
Hardcover. Etat : Like New. Like New. book. N° de réf. du vendeur ERICA75835404216295
Quantité disponible : 1 disponible(s)