Sökning: "High-speed Downlink Shared Channel HS-DSCH"

Hittade 5 uppsatser innehållade orden High-speed Downlink Shared Channel HS-DSCH.

  1. 1. Jitter Management in Circuit Switched Voice over HSPA Networks

    Master-uppsats,

    Författare :Ge Song; [2009]
    Nyckelord :;

    Sammanfattning : When a shared channel or packet switched network is used for transmission (e.g.WLAN, HSPA (Turbo-3G), LTE (4G)), it introduces variance in the delay of packets. Thisvariance is called jitter. LÄS MER

  3. 2. Implementation and simulation of HSDPA functionality with ns-2

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Haichuan Jianqiu Wu Zhao; [2005]
    Nyckelord :Reglerteknik; UMTS; HSDPA; ns-2; EURANE; HS-DSCH; DCH; Power Consumption; FCDS; Reglerteknik;

    Sammanfattning : Enhanced packet-data access is a trend in third generation mobile communication system. WCDMA Release 5 introduces HSDPA (High Speed Packet Data Access) with a brand new downlink transport channel HS-DSCH (High Speed Downlink Shared Channel) into 3GPP specification to provide greater capacity. LÄS MER

  4. 3. HSDPA System Simulation

    Magister-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Författare :Sohaib Khan; Nguyen Kim Cuong; [2005]
    Nyckelord :High Speed Downlink Packet Access HSDPA ; Adaptive Modulation and Coding AMC ; Packet Scheduling PS ; Hybrid Automatic Retransmit reQuest ARQ ; Node B; Radio Network Controller RNC ; High-speed Downlink Shared Channel HS-DSCH ; Transmission Time Interval TTI ; Link Adaptation;

    Sammanfattning : This thesis provides a background of the high speed downlink packet access (HSDPA) concept; a new feature which has been introduced in the Release 5 specifications of the 3GPP WCDMA/UTRA-FDD standards. In order to emphasize the theoretical analysis, a simulation of a HSDPA system shall also be performed. .. LÄS MER

  5. 4. 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

  7. 5. 3G HSDPA Performance In Mobile Internet Connections

    Master-uppsats, KTH/Mikroelektronik och Informationsteknik, IMIT

    Författare :Xiaoxin Wang; [2004]
    Nyckelord :3G; UMTS; TCP performance; HSDPA; HS-DSCH; 3G; UMTS; TCP prestanda; HSDPA; HS-DSCH;

    Sammanfattning : A key objective for 3G wireless networks, such as the Universal Mobile Telecommunication System (UMTS), is the explicit support for data communications for mobile users. Today, the dominant transport protocol in the Internet is the Transport Control Protocol (TCP). LÄS MER