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Full text of "USPTO Patents Application 09750903"

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In the Claims 


Claims are amended as follows: 
1 to 20 (cancelled) 

21. (currently amended) A method of controlling the admission of a traffic flow to 
a communications network, the method comprising the steps of: 

sampling an aggregated traffic flow on a network resource to which the traffic 
flow is to be admitted to obtain a mean bandwidth measurement and a bandwidth 
variance measurement of said aggregated traffic flow; 

determining from said mean bandwidth and variance measurements a price 
for bandwidth and a separate price for variance; 

sampling the traffic flow to be admitted to the network resource to measure its 
mean bandwidth and variance; and 

applying to said traffic flow the separate prices for bandwidth and variance at 
an ingress node to said communications network as a means of controlling 
admission of the traffic flow to the network resource. 

22. (previously presented) The method of claim 21, wherein the price for 
bandwidth is determined as a price for unit bandwidth and the price for variance is 
determined as a price for unit variance. 

23. (previously presented) The method of claim 22, wherein a total price for 
admission of the traffic flow to the network resource is provided to an admission 
controller of said traffic flow, said total price comprising the sum of the following 
products: i) the measured mean bandwidth of the traffic flow times the price per unit 
bandwidth for using the network resource; and ii) the variance of the traffic flow times 
the price per unit variance for using the network resource. 

24. (previously presented) The method of claim 21, wherein an admission 
controller associated with the traffic flow regulates at least one of the mean 
bandwidth and variance of said traffic flow. 


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25. (previously presented) The method of claim 24, wherein said admission 
controller comprises an ingress controller in an edge node of the communications 
network, 

26. (previously presented) The method of claim 21, wherein respective maximum 
control limits are defined for both the mean bandwidth and bandwidth variance 
components of the aggregated traffic flow on the network resource, and wherein at 
least one of said price for bandwidth and price for variance is increased as any of the 
mean bandwidth and variance measurements of said aggregated traffic flow 
approaches its respective limit. 

27. (previously presented) The method of claim 26, wherein the determination of 
the bandwidth price is a function of the difference between the measured mean 
bandwidth of the aggregated traffic flow and the mean bandwidth control limit, and of 
the first and second derivatives against time of said function. 

28. (previously presented) The method of claim 26, wherein the determination of 
the variance price is a function of the difference between the control limit and the 
sum of the measured variance of the aggregated traffic flow and a standard deviation 
corresponding to said variance, and of the first and second derivatives against time 
of said standard deviation. 

29. (currently amended) A network manager for a communications network, 
comprising; 

a first traffic flow sampler for sampling aggregated traffic flow on a network 
resource to which a traffic flow is to be admitted to obtain a mean bandwidth 
measurement and a bandwidth variance measurement of said aggregated traffic 
flow; 

price computation means for determining from said mean bandwidth and 
variance measurements a price for bandwidth and a separate phce for variance; 

a second traffic flow sampler for sampling the traffic flow to be admitted to the 
network resource to measure its mean bandwidth and vahance; and 


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m e ans an ingress traffic controller for applying to said traffic flow the separate 
prices for bandwidth and variance as a means of controlling admission of the traffic 
flow to the network resource. 

30, (previously presented) The network manager of claim 29, wherein the price 
computation means determines the price for bandwidth as a price for unit bandwidth 
and the price for variance as a price for unit variance. 

31, (previously presented) The network manager of claim 29, wherein the price 
computation means provides a total price for admission of the traffic flow to the 
network resource to an admission controller of said traffic flow, said total price 
comprising the sum of the following products: i) the measured mean bandwidth of 
the traffic flow times the price per unit bandwidth for using the network resource; and 
ii) the variance of the traffic flow times the price per unit variance for using the 
network resource. 

32, (previously presented) The network manager of claim 29, wherein the 
network manager defines respective maximum control limits for both the mean 
bandwidth and bandwidth variance components of the aggregated traffic flow on the 
network resource, and wherein said manages increases at least one of said price for 
bandwidth and price for variance as any of the mean bandwidth and variance 
measurements of said aggregated traffic flow approaches its respective limit. 

33, (previously presented) The network manager of claim 32, wherein the price 
computation means determines the bandwidth price as a function of the difference 
between the measured mean bandwidth of the aggregated traffic flow and the mean 
bandwidth control limit, and of the first and second derivatives against time of said 
function. 

34, (previously presented) The network manager of claim 32, wherein the price 
computation means determines the variance price as a function of the difference 
between the control limit and the sum of the measured variance of the aggregated 
traffic flow and a standard deviation corresponding to said variance, and of the first 
and second derivatives against time of said standard deviation. 


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35. (currently amended) An admission controller for admitting traffic flows to a 
network resource in a communications network, the controller comprising: 

a traffic flow sampler for sampling a traffic flow to be admitted to the network 
resource to measure its mean bandwidth and variance; and 

m e ans an ingress traffic controller for receiving a price for bandwidth and a 
separate price for variance from a network manager; af\4 

m ea ns for app l y i ng said ingress traffic controller being arranged to apply to 
said traffic flow the separate prices for bandwidth and variance received from the 
network manager as a means of controlling admission of the traffic flow to the 
network resource. 

36. (currently amended) A computer readable medium comprising program code 
for configuring a network manger of a communications network, said program code 
comprising: 

code for sampling aggregated traffic flow on a network resource to which the 
traffic flow is to be admitted to obtain a mean bandwidth measurement and a 
bandwidth variance measurement of said aggregated traffic flow; 

code for determining from said mean bandwidth and variance measurements 
a price for bandwidth and a separate price for variance; 

code for sampling the traffic flow to be admitted to the network resource to 
measure its mean bandwidth and variance; and 

code for applying to said traffic flow at an ingress node to said 
communications network the separate prices for bandwidth and variance as a means 
of controlling admission of the traffic flow to the network resource. 


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