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US5933481A
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Method of controlling call traffic in a telecommunication system
Assignee: Bell Canada Inc
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Filing: 1996-02-29
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Granted: 1999-08-03
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Expires: 2016-02-29
Abstract
Abstract A method of controlling call traffic in a telecommunication system by dynamically altering the rate at which offered calls are accepted includes the steps of successively determining the offered call rate, and accepting calls from the offered calls, at a lower rate, as the offered call rate increases. For accepting the offered calls, at least two call-gapping intervals are used. The method includes selecting the shorter gapping interval whenever the offered call rate is below a threshold value and the longer gapping interval whenever it is above that value.
Inventors
- 👤 Douglas Malcolm MacDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:43
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/36; H04M3/367; H04M15/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
105 words
A method of controlling call traffic in a telecommunication system by dynamically altering the rate at which incoming offered calls are accepted, characterised by the steps of: successively determining the offered call rate of the incoming offered calls by counting said incoming offered calls during each of successive gapping intervals; accepting calls from among said incoming offered calls, at a first rate when said offered call rate is no greater than a set value; and accepting calls from among said incoming offered calls, at a second rate whenever said offered call rate exceeds the set value, the second rate being lower than the first rate.
Claim 2
Independent Claim
105 words
A method of controlling call traffic in a telecommunication system by dynamically altering the rate at which incoming offered calls are accepted, characterised by the steps of: successively determining the offered call rate of the incoming offered calls by counting said incoming offered calls during each of successive gapping intervals; accepting calls from among said incoming offered calls, at a first rate when said offered call rate is no greater than a set value; and accepting calls from among said incoming offered calls, at a second rate whenever said offered call rate exceeds the set value, the second rate being lower than the first rate.
Claim 3
Dependent Claim
99 words
A method of controlling call traffic in accordance with claim 1, further characterised by the steps of: accepting a maximum average of one incoming offered call per each successive gapping interval T1, whenever the offered call rate does not exceed the set value; accepting a maximum average of one incoming offered call per each successive gapping interval T2, whenever the offered call rate exceeds the set value; and setting the gapping interval T1 shorter than the gapping interval T2, so that the maximum average of accepted calls is lower during the gapping interval T2 than the gapping interval T1.
Claim 4
Dependent Claim
98 words
A method of controlling call traffic in accordance with claim 2, in which the set value is a load threshold value LT of offered calls per load evaluation period P, and in which successively determining the offered call rate is further characterised by the step of: successive counting the number of said incoming offered calls during each load evaluation period P to determine the offered call rate, each period P being at least a magnitude longer than either of the gapping intervals T1 or T2, so as to determine the average offered call rate for calls being received.
Claim 5
Dependent Claim
48 words
A method of controlling call traffic in accordance with claim 2, further characterised by the step of: accepting a limited plurality of offered calls in any one gapping interval so as to average, with previous gapping intervals having no offered calls, one offered call per successive gapping interval.
Claim 6
Independent Claim
128 words
A method of controlling call traffic in a telecommunication system by dynamically altering the rate at which incoming offered calls are accepted, characterised by the steps of: successively determining the offered call rate of the incoming offered calls; accepting all incoming offered calls when the offered call rate is below a first preset value; accepting calls from among said incoming offered calls at a first fixed rate when said offered call rate is greater than said first preset value; and accepting calls from among said incoming offered calls at a second fixed rate when said offered call rate is greater than a second preset value, said second fixed rate being lower than said first fixed rate, and said second preset value being higher than said first preset value.
Claim 7
Independent Claim
128 words
A method of controlling call traffic in a telecommunication system by dynamically altering the rate at which incoming offered calls are accepted, characterised by the steps of: successively determining the offered call rate of the incoming offered calls; accepting all incoming offered calls when the offered call rate is below a first preset value; accepting calls from among said incoming offered calls at a first fixed rate when said offered call rate is greater than said first preset value; and accepting calls from among said incoming offered calls at a second fixed rate when said offered call rate is greater than a second preset value, said second fixed rate being lower than said first fixed rate, and said second preset value being higher than said first preset value.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-02 | 2003-02-01 | 2003-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-02 | 2007-02-01 | 2007-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-02 | 2011-02-01 | 2011-08-03 | $7700.00 | Window Closed / Lapsed |