Scheduling strategy for packet switched traffic

Details Scheduling strategy for packet switched traffic Scheduling strategy for packet switched traffic

2011-01-04

2011-01-04

Trost, IV, William (Department: 2472)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S229000, C370S230000, C370S230100, C370S232000, C370S233000, C370S235000

Reexamination Certificate

active

07864684

ABSTRACT:
The invention provides a leaky-bucket method for delivering packets from a first node (A) to a second node (B) in a packet switched network, comprising the steps of: receiving at the first node (A) of at least one transmission comprising buffered packets, and at least one transmission comprising real-time packets; transmitting the received packets to the second node (B) and increase a bucket counter for the bucket, which bucket has a leak rate that is equal to or larger than the byte transmitting ratio of the real-time packets. The method is particularly characterize in that: the bucket size for the buffered packets is set to a first size; the bucket size for real-time packets is set to a second size that is larger than the first bucket size; real-time packets are transmitted to the second node (B) upon arrival at the first node (A), provided that a bucket counter indicates that the second bucket size is not overflowed; buffered packets are transmitted to the second node (B) when the bucket counter indicates that it has leaked enough to receive a buffered packet without overflowing said first bucket size. The invention is also providing an improved node arranged to perform the improved method for a leaky-bucket.

REFERENCES:
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3GPP. 3rd Generation Partnership Project, Technical Specification Group GSM/EDGE Radio Access Network; General Packet Radio Seivice (GPRS); Base Station System (BSS)—Serving GPRS Support Node (SGSN); BSS GPRS Protocol (BSSGP) (Release 7) 3GPP TS 48.018 V7.3.0 (Nov. 2005).

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