Method and system for fairly allocating differentiated...

Details Method and system for fairly allocating differentiated... Method and system for fairly allocating differentiated...

2007-01-10

2010-06-15

Moe, Aung S (Department: 2474)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C398S066000, C398S099000

Reexamination Certificate

active

07738490

ABSTRACT:
A method for fairly allocating a differentiated bandwidth based on shared multicast traffic in transmission of downstream traffic in a Time Division Multiplexed-Passive Optical Network (TDM-PON) is provided. The method includes the steps of: deciding a total number of multicast groups to which services are currently provided, and a number of multicast groups to which a predetermined optical network unit (ONU) subscribes; calculating a multicast share degree in each of the multicast groups, and a total multicast share degree of the predetermined ONU in all of the multicast groups; dividing the total multicast share degree of the predetermined ONU by the total number of multicast groups to calculate a final normalized multicast share degree of the predetermined ONU; calculating an average multicast bandwidth of the predetermined ONU depending on a total bandwidth allocated to multicast traffic services on the basis of the final normalized multicast share degree; calculating the differentiated bandwidth of the predetermined ONU using ONU-specific service weights; and subtracting the average multicast bandwidth from the differentiated bandwidth of the predetermined ONU to calculate a maximum dynamic timeslot bandwidth of the predetermined ONU.

REFERENCES:
patent: 6771599 (2004-08-01), Aoyama et al.
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patent: 2007/0263625 (2007-11-01), Engstrand
patent: 2008/0056275 (2008-03-01), Smiljanic
Kramer et al., “Ethernet Passive Optical Network (EPON): Building a Next-Generation Optical Access Network”, IEEE Communications Magazine, Feb. 2002, pp. 66-73.

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