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WiMAX pare solutia castigatoare

La nivel mondial, serviciile WiFi si 3G au castigat teren in ultima vreme, dar interesul marilor companii se muta incet incet spre WiMAX. Cel mai mare producator de telefoane mobile din lume, Nokia, a anuntat ca va produce din 2008 telefoane mobile WiMAX. Unul dintre principalele dezavantaje ale WiMAX este ca nu exista pentru consumatori echipamente compatibile cu astfel de retele. Altfel, serviciile si ofertele teoretic ar putea fi mult mai ieftine decat ofertele companiilor de telefonie clasica, asa cum tehnologia VoIP a dat peste cap toti marii operatori de telefonie fixa clasica.La randul sau, Samsung, numarul trei mondial pe piata telefoanelor mobile, a declarat ca WiMAX este platforma pe care se va realiza oferta 4G (urmatorul pas dupa 3G si 3,5G care este serviciul HSDPA). Compania a prezentat o serie de produse proprii pentru retelele de comunicatii mobile despre care sustine ca permit atingerea de viteze de download de 100 Mbps pe telefon si servicii la punct fix cu viteze de 1 Gbps. Samsung a facut in Coreea de Sud cateva demonstratii in acest sens. Informatiile sunt confirmate relativ doar de NTT DoCoMo, operatorul dominant din Japonia, care vede serviciile 4G in piata prin 2010.Deschiderea de retele WiMAX este puternic sprijinita si de Uniunea Europeana, comisarul pentru media si telecomunicatii, Viviane Reading, afirmand recent ca utilizatorii finali trebuie sa aiba dreptul de a-si alege prin ce tehnologie sa le fie furnizate serviciile speciale. Retelele cu viteze de 100 Mbps permit furnizarea de servicii precum televiziune pe Internet (IPTV), asa cum in Romania ofera doar grupul Ines. Compania ofera insa serviciul in reteaua sa de fibra optica, iar calitatea semnalului se apropie de cea DVD.In Statele Unite, Intel si Motorola au investit anul trecut 900 de milioane de dolari in compania Clearwire, care si-a propus sa acopere America cu reteaua sa WiMAX. Operatorul de telefonie mobila Sprint Nextel a anuntat ca va colabora cu Samsung pentru realizarea unei retele WiMAX - 4G cu tehnologia dezvoltata de sud-coreeni.

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