US5898673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for prevention of cell loss due to quality of service contracts in an ATM network
Assignee: Unify Inc
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Filing: 1997-02-12
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Granted: 1999-04-27
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Expires: 2017-02-12
Abstract
Abstract A data traffic network 200 in which excess cells, or cells whose transfer is expected to cause the user to exceed the QoS traffic contract bandwidth limit, are transferred to a destination node 300b via an alternate or secondary network 212. More particularly, traffic received at a first ATM node 300a (for example, an end user node) is or has been classified according to traffic type, such as voice, data, or video (with their corresponding characteristics). Prior to packetizing the data streams into the ATM fixed length packets, the ATM node 300a, 600a determines whether the QoS traffic contract bandwidth limit has been exceeded or is likely to be exceeded. If so, then the corresponding traffic is transmitted to the destination node 300b via an appropriate alternate network 212. For example, voice traffic is transferred to a PBX and, ultimately, to the public switched telephone network (PSTN). Once the bandwidth utilization of the ATM network 305 falls below the threshold level, all traffic is routed back through the ATM network.
Inventors
- 👤 Richard J. Riggan
- 👤 William Joseph Beyda
- 👤 Shmuel Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/17; H04J3/175; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5619; H04L2012/562; H04L2012/5638; H04L2012/5646; H04L2012/5651; H04L2012/5663
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
146 words
A method for re-routing data in an asynchronous transfer mode (ATM) network, comprising: defining a Quality of Service (QoS) threshold for said ATM network, receiving data at a first ATM node, wherein said data comprises one or more of a plurality of data types; identifying said data according to said one or more of said plurality of data types; determining whether a usage of said ATM network has exceeded said QoS threshold; and routing at least a first portion of said data via at least one secondary network if said usage has exceeded said QoS threshold, wherein said routing comprises routing said at least a first portion of said data based on said identifying said data based on said one or more of said plurality of data types, and said secondary network is chosen based on said one or more of said plurality of data types.
Claim 2
Independent Claim
146 words
A method for re-routing data in an asynchronous transfer mode (ATM) network, comprising: defining a Quality of Service (QoS) threshold for said ATM network, receiving data at a first ATM node, wherein said data comprises one or more of a plurality of data types; identifying said data according to said one or more of said plurality of data types; determining whether a usage of said ATM network has exceeded said QoS threshold; and routing at least a first portion of said data via at least one secondary network if said usage has exceeded said QoS threshold, wherein said routing comprises routing said at least a first portion of said data based on said identifying said data based on said one or more of said plurality of data types, and said secondary network is chosen based on said one or more of said plurality of data types.
Claim 3
Dependent Claim
20 words
The method of claim 1, further comprising routing at least a second portion of said data via said ATM network.
Claim 4
Dependent Claim
41 words
The method of claim 2, further comprising receiving said at least a first portion and said at least a second portion at a second ATM node and re-integrating said at least a first portion and said at least a second portion.
Claim 5
Dependent Claim
24 words
The method of claim 1, further comprising routing all of said data via said ATM network if said usage falls below said QoS threshold.
Claim 6
Dependent Claim
21 words
The method of claim 1, wherein said routing via said secondary network comprises routing via an integrated services digital network (ISDN).
Claim 7
Dependent Claim
21 words
The method of claim 1, wherein said routing via said secondary network comprises routing via a public switched telephone network (PSTN).
Claim 8
Dependent Claim
19 words
The method of claim 1, wherein said routing via said secondary network comprises routing via a frame relay network.
Claim 9
Dependent Claim
18 words
The method of claim 1, wherein said routing via said secondary network comprises routing via a wireless network.
Claim 10
Dependent Claim
19 words
The method of claim 1, wherein said routing via said secondary network comprises routing via a cable television network.
Claim 11
Independent Claim
145 words
A method for re-routing data in an asynchronous transfer mode (ATM) network, comprising: defining a quality of service (QoS) threshold for said ATM network, receiving data at a first ATM node; identifying said data according to one or more of a plurality of data types; determining whether a usage of said ATM network has exceeded said QoS threshold; predicting, responsive to said receiving, when said usage is expected to exceed said QoS threshold; and routing at least a first portion of said data via at least one secondary network during periods when said usage is predicted to exceed said QoS threshold, wherein said routing comprises routing said at least a first portion of said data based on said one or more of a plurality of data types, and said secondary network is chosen based on said one or more of a plurality of data types.
Claim 12
Independent Claim
145 words
A method for re-routing data in an asynchronous transfer mode (ATM) network, comprising: defining a quality of service (QoS) threshold for said ATM network, receiving data at a first ATM node; identifying said data according to one or more of a plurality of data types; determining whether a usage of said ATM network has exceeded said QoS threshold; predicting, responsive to said receiving, when said usage is expected to exceed said QoS threshold; and routing at least a first portion of said data via at least one secondary network during periods when said usage is predicted to exceed said QoS threshold, wherein said routing comprises routing said at least a first portion of said data based on said one or more of a plurality of data types, and said secondary network is chosen based on said one or more of a plurality of data types.
Claim 13
Dependent Claim
23 words
The method of claim 10, further comprising identifying a type of data which is being transmitted when said usage exceeds said ATM threshold.
Claim 14
Dependent Claim
23 words
The method of claim 11, further comprising identifying a source of data which is being transmitted when said usage exceeds said ATM threshold.
Claim 15
Dependent Claim
20 words
The method of claim 10, further comprising routing at least a second portion of said data via said ATM network.
Claim 16
Dependent Claim
41 words
The method of claim 13, further comprising receiving said at least a first portion and said at least a second portion at a second ATM node and re-integrating said at least a first portion and said at least a second portion.
Claim 17
Dependent Claim
21 words
The method of claim 10, wherein said routing via said secondary network comprises routing via an integrated services digital network (ISDN).
Claim 18
Dependent Claim
21 words
The method of claim 10, wherein said routing via said secondary network comprises routing via a public switched telephone network (PSTN).
Claim 19
Dependent Claim
19 words
The method of claim 10, wherein said routing via said secondary network comprises routing via a frame relay network.
Claim 20
Dependent Claim
18 words
The method of claim 10, wherein said routing via said secondary network comprises routing via a wireless network.
Claim 21
Dependent Claim
19 words
The method of claim 10, wherein said routing via said secondary network comprises routing via a cable television network.
Claim 22
Dependent Claim
126 words
A telecommunications system comprising: a first ATM node configured to receive data according to one or more of a plurality of data types; a second ATM node operably coupled to said first ATM node; an ATM network coupling said first ATM node to said second ATM node, said ATM network comprising a plurality of ATM switches operable to convey data from said first ATM node to said second ATM node; and at least one secondary network operably coupling said first ATM node to said second ATM node, wherein said fist ATM node is configured to route at least a first portion of said data via said at least one secondary network responsive to a determination that a bandwidth threshold on said ATM network has been exceeded.
Claim 23
Dependent Claim
126 words
A telecommunications system comprising: a first ATM node configured to receive data according to one or more of a plurality of data types; a second ATM node operably coupled to said first ATM node; an ATM network coupling said first ATM node to said second ATM node, said ATM network comprising a plurality of ATM switches operable to convey data from said first ATM node to said second ATM node; and at least one secondary network operably coupling said first ATM node to said second ATM node, wherein said fist ATM node is configured to route at least a first portion of said data via said at least one secondary network responsive to a determination that a bandwidth threshold on said ATM network has been exceeded.
Claim 24
Independent Claim
143 words
A method for re-routing data in an asynchronous transfer mode (ATM) network, comprising: defining a bandwidth threshold for said ATM network, receiving data at a first ATM node, wherein said data comprises one or more of a plurality of data types; identifying said data according to said one or more of said plurality of data types; determining whether a usage of said ATM network has exceeded said bandwidth threshold; and routing at least a first portion of said data via at least one secondary network if said usage has exceeded said bandwidth threshold, wherein said routing comprises routing said at least a first portion of said data based on said identifying said data based on said one or more of said plurality of data types, and said secondary network is chosen based on said one or more of said plurality of data types.
Claim 25
Independent Claim
143 words
A method for re-routing data in an asynchronous transfer mode (ATM) network, comprising: defining a bandwidth threshold for said ATM network, receiving data at a first ATM node, wherein said data comprises one or more of a plurality of data types; identifying said data according to said one or more of said plurality of data types; determining whether a usage of said ATM network has exceeded said bandwidth threshold; and routing at least a first portion of said data via at least one secondary network if said usage has exceeded said bandwidth threshold, wherein said routing comprises routing said at least a first portion of said data based on said identifying said data based on said one or more of said plurality of data types, and said secondary network is chosen based on said one or more of said plurality of data types.
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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) | 2002-04-26 | 2002-10-26 | 2003-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-26 | 2006-10-26 | 2007-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-26 | 2010-10-26 | 2011-04-27 | $7700.00 | Window Closed / Lapsed |