Test Solutions on LTE Base Station Devices

Synchronization Test Solutions on LTE Base Station Devices

With large-scale deployment of Packet Transport Network by China Mobile and as the new bearer network of mobile communications (mobile base station backhaul), PTN will play a more and more important role in getting good benefits. PTN can provide a high-efficiency multi-service carrier with strong protection, OAM and network management capabilities, flexible statistical multiplexing and QoS capabilities, to meet the requirements of high bandwidth and low-latency in LTE. It can also deliver accurate time and frequency synchronization information for the LTE system. Therefore, CMCC now use PTN as the main solutions of LTE backhaul. After first LTE trial testing and evaluation, CMCC starts to deploy such trial applications and will apply it in the whole network soon.

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    Test Solutions

    Synchronization Measurement in LTE Base Station

    Fig 1  Synchronization Measurement in LTE Base Station

    1) 1PPS+TOD Input/Output Measurement

    2)  PTP IEEE1588v2 Time Measurement

    3) SyncE Measurement

    4) Time Deviation or Clock Deviation Measurement

    5) Key Parameters Monitoring & Alarm of Time Reference Source, and Switching Measurement

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