Other

Centillium Communications, Inc.

Alloptic, Inc.

Joseph G DeCarolis

Thaddeus Jude Dudziak

Dumitru Gruia

Hanumanthrao Nimishakavi

Chung Liang

To enhance the upstream data traffic management in an EPON, a scheme is employed to allocate transmission windows for upstream data transmitted from the subscribers' ONUs to an OLT. The queues of a logical link are grouped into queue containers, and the OLT allocates upstream transmission windows to the queue containers. Logical links assigns the upstream transmission window allocated to a queue container to the queues in the queue containers.

Enhanced upstream data traffic management for EPON

A system and method for synchronizing clocks related to telecommunications across an unsynchronized point-to-point network connection utilizes downstream data timed using a high frequency transmission clock to transfer timing information of a central telecom-based clock from a first network node to a second network node. In an exemplary embodiment, the point-to-point network connection is an Ethernet-based connection that operates in accordance with a Gigabit Ethernet standard. The timing information of the central telecom-based clock is extracted from the transmitted data at the second network node by recovering the high frequency transmission clock and then, deriving a reference clock, which is synchronized with the central telecom-based clock, from the recovered transmission clock. The reference clock is then used to generate one or more telecom-related clocks that are used by the second network node.

System and method for synchronizing telecom-related clocks across an unsynchronized point-to-point network connection

A system and method for synchronizing clocks related to telecommunications throughout s point-to-multipoint optical network utilizes downstream data timed using a high frequency transmission clock to distribute timing information of a central telecom-based clock to remote terminals. In an exemplary embodiment, the point-to-multipoint optical network system is an Ethernet-based passive optical network (PON) system that operates in accordance with a Gigabit Ethernet standard. The timing information of the central telecom-based clock is extracted from the downstream data at each remote terminal by recovering the high frequency transmission clock and then, deriving a reference clock, which is synchronized with the central telecom-based clock, from the recovered transmission clock. The reference clock is then used to generate one or more telecom-related clocks that are needed by the remote terminal. The system and method allows telecom-related clocks throughout the system to be synchronized in an efficient and cost-effective manner.

Growing community of inventors

San Ramon, CA, United States of America

Joseph G DeCarolis