Electronics and Telecommunications Research Institute

Chansung Park

Sun Me Kim

Ji Wook Youn

Jongtae Song

Kyeong-Eun Han

Daeub Kim

Tae Whan Yoo

YongWook Ra

A passive optical network (PON) method and device using network sharing are disclosed. The PON slicing method includes identifying network elements included in a plurality of physical PONs (pPONs), abstracting the identified network elements to be recognized as a same software block, generating a plurality of virtual PONs (vPONs) according to a user requirement using the plurality of pPONs, and mapping the generated plurality of vPONs by performing PON slicing on the abstracted network elements.

PON slicing method and device using network sharing

A scheduling method for switching including receiving an allocation request for a time slot from input nodes to which the time slot is not allocated, receiving property information of at least one of virtual output queues (VOQs) in which data received by the input nodes is stored, determining a transmission priority of the VOQs for transmission of the data stored in the VOQs based on the received property information of the VOQs, determining input nodes to which the time slot is to be allocated using outputter arbiters for output nodes corresponding to the VOQs, allocating the time slot to the determined input nodes, and updating elements used to allocate the time slot with respect to input nodes for which the allocating of the time slot is completed and output nodes for which the allocating of the time slot is completed.

Scheduling method and scheduler for switching

An optical switching control method and apparatus. The method includes generating an optical switching path corresponding to a destination node of service traffic flowing from an external service network, generating an optical frame corresponding to the generated optical switching path, transmitting, to a control server, a request message for requesting an allocation of a time slot to transmit the generated optical frame, generating an optical signal having a predetermined wavelength to transmit the optical frame in response to an admission message being received as a result of admission with respect to the request message, and transferring the optical frame to the destination node based on the optical switching path using the generated optical signal.

Packet-based optical signal switching control method and apparatus

Growing community of inventors

Sejong-si, South Korea

Chansung Park