Sökning: "3g wcdma"

Visar resultat 16 - 20 av 22 uppsatser innehållade orden 3g wcdma.

  1. 16. Benchmarking of mobile network simulator, with real network data

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Lars Näslund; [2007]
    Nyckelord :3G; WCDMA;

    Sammanfattning : In the radio network simulator used in this thesis the radio network from a specific operator is modeled. The real network model in the simulator uses, a 3-D building database, realistic site data (antenna types, feederloss, ... LÄS MER

  3. 17. Study Comparison of WCDMA and OFDM

    Magister-uppsats, Blekinge Tekniska Högskola/Avdelningen för telekommunikationssystem

    Författare :Moyamer Chowdhury; Aminul Alam; [2007]
    Nyckelord :TDMA; FDM; CDMA; WCDMA; OFDM;

    Sammanfattning : Wideband Code Division Multiple Access (WCDMA) is one of the main technologies for the implementation of third-generation (3G) cellular systems. It is based on radio access technique proposed by ETSI Alpha group and the specifications was finalised 1999. LÄS MER

  4. 18. Packet Data Flow Control in Evolved WCDMA Networks

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Andreas Bergström; [2005]
    Nyckelord :Flow Control; Buffer Management; HSDPA; WCDMA; UMTS; 3G;

    Sammanfattning : The key idea of the new, shared high-capacity channel HSDPA, is to adapt the transmission rate to fast variations in the current radio conditions, thus enabling download peak data rates much higher than what WCDMA can offer today. This has induced a need for data that traverses the mobile network to be intermediately buffered in the Radio Base Station, RBS. LÄS MER

  5. 19. Coexistence of Real Time and Best Effort Services in Enhanced Uplink WCDMA

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik; Tekniska högskolan

    Författare :Erik Axell; [2005]
    Nyckelord :Reglerteknik; 3G; UMTS; WCDMA; Enhanced Uplink; E-DCH; Reglerteknik;

    Sammanfattning : The increasing use of data services and the importance of IP basedservices in third generation mobile communication system (3G), requires the transmission from the cell phone to the base station, i.e. uplink, to manage high speed data rates. LÄS MER

  7. 20. Uplink Interference Management of High Bit Rate Users in Evolved WCDMA

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Samuel Axelsson; [2005]
    Nyckelord :Telekommunikation; 3G; WCDMA; EUL; E-DCH; Telekommunikation;

    Sammanfattning : The WCDMA air interface, used in the third generation mobile communication systems, is currently being evolved to improve the uplink, i.e. the radio links carrying traffic from the mobile user to the fixed network. An enhanced uplink concept is being developed to meet the expected needs from future applications like multimedia and video-streaming. LÄS MER