Sökning: "PTP - precision time protocol"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden PTP - precision time protocol.

  1. 1. Time synchronization error detection in a radio access network

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Moulika Madana; [2023]
    Nyckelord :GNSS - Global Navigation Satellite System; OAS - Over-the air-synchronization; PRTC - primary reference time clock; PTP - precision time protocol; Gauss Jordan elimination; GNN- Graph Neural Network; GNSS -Globalt navigationssatellitsystem; OAS - Över-the-air tidssynkronisering; PRTC - Primär referenstidklocka; PTP - Precisionstidprotokoll; Gauss Jordan eliminering; GNN- Graf neurala nätverk;

    Sammanfattning : Time synchronization is a process of ensuring all the time difference between the clocks of network components(like base stations, boundary clocks, grandmasters, etc.) in the mobile network is zero or negligible. It is one of the important factors responsible for ensuring effective communication between two user-equipments in a mobile network. LÄS MER

  3. 2. Improved Precision Time Protocol with Relative Clock Phase Information

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Avneesh Vyas; [2020]
    Nyckelord :;

    Sammanfattning : A common time reference among nodes is one of the key requirements in telecommunication, distributed control systems and industrial automation systems. For instance, 3GPP LTE TDD standard requires at least ± 1.5 µsec time accuracy among base stations in order to resolve uplink and downlink transmission. LÄS MER

  4. 3. Advanced Ethernet Clock Synchronization based on Round Trip Time Protocol

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Granville Manvel Goes; [2020]
    Nyckelord :Networks; Ethernet; Clock synchronization; Synchronization error; Precision Time Protocol PTP ; Round Trip Time RTT protocol; Nätverk; Ehternet; Klocksynkronisering; Synkroniseringsfel; Precision Time Protocol PTP ; Round Trip Time RTT protocol;

    Sammanfattning : In this master thesis project, a new protocol called the Round Trip Time (RTT) protocol is implemented and verified. It helps determine the Ethernet clock frequency offset between two communicating nodes. The detection of this offset between nodes is a way to reduce the clock synchronization error. LÄS MER

  5. 4. Practical analysis of the Precision Time Protocol under different types of system load

    Kandidat-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Emil Gedda; Anders Eriksson; [2017]
    Nyckelord :ptp; ieee1588; accuracy; precision; time synchronization; clocks; stability; system load; real time system;

    Sammanfattning : The existence of distributed real-time systems calls for protocols for high accuracy time synchronization between devices. One such protocol, the Precision Time Protocol (PTP) reaches sub microsecond synchronization precision. PTP can be implemented both in hardware and software. LÄS MER

  7. 5. Timing and Synchronization over Ethernet

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik; Linköpings universitet/Tekniska högskolan

    Författare :Emil Lundqvist; [2015]
    Nyckelord :Ethernet; PTP; SyncE; Time Frequency;

    Sammanfattning : In this thesis an investigation will be done on how time and frequency can be synchronized over Ethernet with help of Precision Time Protocol and Synchronous Ethernet. The goal is to achieve a high accuracy in the synchronization when a topology of 10 cascaded nodes is used. LÄS MER