Sökning: "Unlicensed Mobile Access"

Hittade 5 uppsatser innehållade orden Unlicensed Mobile Access.

  1. 1. Outdoor Small Cell Deployment with Complementary Spectrum Authorizations, Licensed (LSA) and Unlicensed (LAA) : Techno-Economic Analysis

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Fikri Firman; [2017]
    Nyckelord :;

    Sammanfattning : The significant increase in mobile data traffc has put a considerable load on the wireless mobile networks. In the current highly competitive market, Mobile Network Operators (MNOs) have to strive to provide additional capacityof their network, by also considering the cost factor to make their business sustainable. LÄS MER

  3. 2. Quantitative Analysis on the Feasibility and Benefits of Local Licensing

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Gregorius Kristian Purwidi; [2017]
    Nyckelord :;

    Sammanfattning : In-building connectivity in enterprises and vertical industries will emerge as an important use case of future 5G mobile services, given the fact that 80% of the traffic is generated indoor [1]. However, spectrum solution to this use case, which is unlicensed spectrum, may not be able to secure spectrum availability for large traffic demand as well as critical use case due to the nature of Listen-before-Talk (LBT) protocol. LÄS MER

  4. 3. Survey of Mobile Communication Systems and Handover

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för systemteknik

    Författare :Liang Chen; [2008]
    Nyckelord :wireless system; cellular network; heterogeneous wireless networks; system architecture; interworking; vertical handover;

    Sammanfattning : After more than two decades’ development, modern mobile cellular networks now have almost approached to the commercial level of fourth generation communication networks. For each of the mobile solutions, there are special attributes but also similarities compared to the other competitive solutions. LÄS MER

  5. 4. Security in Unlicensed Mobile Access

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Martin Eriksson; [2005]
    Nyckelord :Unlicensed Mobile Access; UMA; GSM; GRPS; UMTS; security; flaws;

    Sammanfattning : Unlicensed Mobile Access (UMA) provides transparent access to 2G and 3G networks for Mobile Stations over the unlicensed radio interface. Unlicensed radio tehnologies such as Bluetooth or WLAN technology connects the Mobile Station to the fixed IP network of the home or office and delivers high bandwith to the Mobile Station. LÄS MER

  7. 5. High-Speed Downlink Shared Channel in Unlicensed Frequency Bands

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Kristina Zetterberg; [2004]
    Nyckelord :Reglerteknik; HSDPA; HS-DSCH; unlicensed frequency bands; UMTS; WCDMA; Reglerteknik;

    Sammanfattning : In the standardized air interface for third generation mobile communication systems, WCDMA release 5, a concept called High Speed Downlink Packet Access (HSDPA) is introduced. HSDPA enables faster transmissions from base stations to mobile users by using a shared, high-capacity channel called the High-Speed Downlink Shared Channel (HS-DSCH) that is designed for best effort services. LÄS MER