US6748247B1
Expired / Lapsed
US
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System and method of handling dormancy in wireless networks
Assignee: Ribbon Communications Operating Co Inc
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Filing: 2002-03-12
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Granted: 2004-06-08
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Expires: 2022-03-12
Abstract
Abstract Methods and systems for determining and maintaining dormancy timers for subscribers in a wireless wide area network that promote efficient use of the radio channels are disclosed. Subscriber usage is monitored to determine subscriber usage statistics. Based on the subscriber statistics, a dormancy timer value is determined for a given subscriber. The dormancy timer for the given subscriber is then set with the dormancy timer value.
Inventors
- 👤 Kajamalai G. Ramakrishnan
- 👤 Murali Aravamudan
- 👤 Shamim A. Naqvi
- 👤 Michael A. Champa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:36
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/22; H04M3/36; H04M11/00; H04W; H04W28/00; H04W28/02; H04W28/10; H04W52/00; H04W52/02; H04W52/0203; H04W52/0209; H04W52/0225; H04W52/0229; H04W52/0232; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
192 words
A method of maintaining dormancy timers in a wireless wide area network, comprising: monitoring subscriber usage to determine subscriber usage statistics; based on the subscriber statistics determining a dormancy timer value for a given subscriber; wherein a dormancy timer value ‘d’ is determined by maximizing the equation g ( d ) = f ( d ) h ( d ) within a specified parameter, wherein f(d) is a histogram approximation of the equation f ( d ) ≈ ∫ d + T + 3 σ ∞ f S ( s ) s in which {overscore (T)} is the mean talk period and σ is the standard deviation of the silence period distribution f s (s), and s is the variable for silence period for a user, and wherein h(d) is a histogram approximation of the equation h ( d ) ≈ ∫ d ∞ f S ( s ) s :and setting a dormancy timer for the given subscriber with the dormancy timer value, wherein the dormancy timer is used to trigger relinquishment of a communication resource.
Claim 2
Independent Claim
192 words
A method of maintaining dormancy timers in a wireless wide area network, comprising: monitoring subscriber usage to determine subscriber usage statistics; based on the subscriber statistics determining a dormancy timer value for a given subscriber; wherein a dormancy timer value ‘d’ is determined by maximizing the equation g ( d ) = f ( d ) h ( d ) within a specified parameter, wherein f(d) is a histogram approximation of the equation f ( d ) ≈ ∫ d + T + 3 σ ∞ f S ( s ) s in which {overscore (T)} is the mean talk period and σ is the standard deviation of the silence period distribution f s (s), and s is the variable for silence period for a user, and wherein h(d) is a histogram approximation of the equation h ( d ) ≈ ∫ d ∞ f S ( s ) s :and setting a dormancy timer for the given subscriber with the dormancy timer value, wherein the dormancy timer is used to trigger relinquishment of a communication resource.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the subscriber usage statistics are for a given user.
Claim 4
Dependent Claim
16 words
The method of claim 1 wherein the subscriber usage statistics are for a class of subscriber.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein the subscriber usage statistics include a probability density histogram of silent time periods of a given subscriber.
Claim 6
Dependent Claim
49 words
The method of claim 1 wherein a BSC complex controls communications to mobile stations responsively to dormancy timers and wherein the act of setting a dormancy timer value for a given subscriber includes the act of communicating the dormancy timer value to the BSC complex via an overloaded message.
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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) | 2007-06-08 | 2007-12-08 | 2008-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-06-08 | 2011-12-08 | 2012-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-06-08 | 2015-12-08 | 2016-06-08 | $7700.00 | Window Closed / Lapsed |