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World Intellectual Property Organization

Huawei's Patent for Time Synchronization in Passive Optical Networks (PON)

Strategic Insights

— 1 min read

Huawei Technologies Co., Ltd. has patented a method, equipment, and system for time synchronization in passive optical networks (PON). The innovation enables accurate time synchronization among devices in a PON network, improving efficiency and reducing the need for external time sources. According to the patent abstract, the method involves an optical line terminal (OLT) receiving clock information from an optical network unit (ONU) and synchronizing its local time. The OLT then sends this information to other ONUs, allowing them to synchronize with the OLT's clock. This approach eliminates the need for multi-level transmission of time information through packet networks, significantly improving the accuracy of Time of Data (ToD).

Key Takeaways:

  • Huawei's patented method involves an OLT receiving clock information from an ONU and synchronizing its local time.
  • The OLT then sends the clock information to other ONUs, enabling them to synchronize with the OLT's clock.
  • This approach reduces the need for external time sources and improves the accuracy of Time of Data (ToD).
  • The method eliminates the need for multi-level transmission of time information through packet networks.
  • The patent was filed on December 29, 2010, under Application No. PCT/CN2010/080426.
  • The publication of the patent was on July 28, under Publication No. WO/2011/088727.
  • Huawei Technologies Co., Ltd. is the applicant of the patent.
  • Sui, Meng, is the inventor of the method.

Statistics:

  • The patent was filed on December 29, 2010.
  • The publication of the patent was on July 28, under Publication No. WO/2011/088727.
  • The invention aims to improve the accuracy of Time of Data (ToD) in PON networks, which is crucial for real-time applications.

Sources:

  • [World Intellectual Property Organization (WIPO)] - Publication No. WO/2011/088727, July 28.
  • [World Intellectual Property Organization (WIPO)] - PCT Application No. PCT/CN2010/080426, December 29, 2010.

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