Sökning: "3g teknik"

Visar resultat 16 - 20 av 33 uppsatser innehållade orden 3g teknik.

  1. 16. Overview of energy saving aspects in 2G and 3G Mobile Communication Networks

    Master-uppsats, Institutionen för teknik och byggd miljö

    Författare :Md Moklesur Rahman; [2009]
    Nyckelord :;

    Sammanfattning :     In the struggle for reducing the environmental impact of information and communication sector emphasis Telecommunication and wireless network, power consumption of the network has become more attention topics. Though mobile communication network are responsible of small sharing of total globally energy consumption, reducing this power consumption has become an essential key from perspective of environment impacts and operator cost views. LÄS MER

  3. 17. QUALITY OF SERVICE DURING VERTICAL HANDOVER IN 3G/4G WIRELESS NETWORKS

    Master-uppsats, Blekinge Tekniska Högskola/Avdelningen för telekommunikationssystem

    Författare :ABID-AZIZ KHAN; MUHAMMAD-AMIR LATIF; [2009]
    Nyckelord :Final Thesis as Part for Master program in Electrical Engineering with Emphasis on Telecommunication;

    Sammanfattning : Handover means transferring an on going call or data sessions one cell to another. Handovers occur due to the movement of the mobile user from one area to another area. Handovers are used to prevent an on going call to be disconnected. LÄS MER

  4. 18. Terms and conditions (villkor för orderläggning) : En fallstudie på Ericsson AB i Gävle

    Kandidat-uppsats, Institutionen för teknik och byggd miljö

    Författare :Robert Kotzmann; Johan Kallberg; [2008]
    Nyckelord :terms and conditions; key performance indicators; villkor; orderläggning; produktklassificering; ledtid; kundorderpunkt; orderkvantiteter;

    Sammanfattning : This final thesis was performed at Ericsson in Gävle between April and June of 2008. Ericsson is a world leading manufacturer of radio base stations (RBS), which handles mobile phone traffic with 2G and 3G technology. LÄS MER

  5. 19. Radiolänk med GNU Radio

    M1-uppsats, Ämnesavdelningen för elektronik

    Författare :Kristopher Nordin Hellström; Kenny Williams; [2008]
    Nyckelord :gnu; gnu radio; gnu project; ubuntu; python; modulation; usrp; universal software radio peripheral; gnu; gnu radio; gnu project; ubuntu; python; modulation; usrp; universal software radio peripheral;

    Sammanfattning : At the Department of Technology and Built environment at the University of Gävle there was an interest to study GNU Radio, which is an "open source radio project. The project is based on that most of the radio signal processing is made in an ordinary PC. LÄS MER

  7. 20. A Study of Different Switched Mode Power Amplifiers for the Burst Mode Operation

    Master-uppsats, Institutionen för teknik och byggd miljö

    Författare :Dristy Rahul Parveg; [2008]
    Nyckelord :High Efficient transmitter for 3G base station application; Burst mode operation; Switched mode power amplifier SMPA ;

    Sammanfattning : Power-amplifier efficiency is a significant issue for the overall efficiency of most wireless system. Therefore, currently there are different kind of Switched mode power amplifiers are developed which are showing very high efficiency also at higher frequencies but all of these amplifiers are subjected to drive with the constant envelope signals. LÄS MER