Patent US6463034B1 successfully refreshed from Google Patents.
US6463034B1
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Method and apparatus for avoiding data loss during a PPP renegotiation on a Um interface
Assignee: Qualcomm Inc
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Filing: 1999-07-14
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Granted: 2002-10-08
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Expires: 2019-07-14
Abstract
Abstract A method and a wireless communication device capable of flow controlling data to be sent from a TE2 device over a R m interface when PPP renegotiation occurs over a U m interface. Flow control is asserted by the MT2 device by means of manipulating electrical signaling of a physical interface between the MT2 device and the TE2 device. A second embodiment provides a method and a wireless communication device for buffering data on the MT2 device when the PPP renegotiation of the U m interface occurs. In a third embodiment, data is buffered when the PPP renegotiation of the U m interface occurs. When an amount of free buffer space is less that a predetermined threshold, flow control is asserted to the TE2 device.
Inventors
- 👤 Nischal Abrol
- 👤 Marcello Lioy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:35
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/02; H04W28/10; H04W88/00; H04W88/02; H04L; H04L12/00; H04L12/28; H04L65/00; H04L65/40; H04W92/00; H04W92/04
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
74 words
A method of preventing data loss during a PPP renegotiation on a U m interface, said method comprising: determining, on a MT 2 device, whether said PPP renegotiation is occurring on said U m interface; and asserting flow control of data to be output from said TE 2 device to said MT 2 device, over a R m interface, when said determining determines that said PPP renegotiation is occurring on said U m interface.
Claim 2
Independent Claim
74 words
A method of preventing data loss during a PPP renegotiation on a U m interface, said method comprising: determining, on a MT 2 device, whether said PPP renegotiation is occurring on said U m interface; and asserting flow control of data to be output from said TE 2 device to said MT 2 device, over a R m interface, when said determining determines that said PPP renegotiation is occurring on said U m interface.
Claim 3
Dependent Claim
35 words
The method of claim 1 , wherein said asserting flow control comprises: using electrical signalling on a physical level interface between said TE 2 device and said MT 2 device to assert said flow control.
Claim 4
Dependent Claim
24 words
The method of claim 2 , wherein said using said electrical signalling comprises turning off a clear to send signal on a RS232 interface.
Claim 5
Dependent Claim
49 words
The method of claim 1 , further comprising: disabling said flow control of said data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said determining determines that said PPP renegotiation is not occurring on said U m interface.
Claim 6
Independent Claim
128 words
A method of preventing data loss during a PPP renegotiation on a U m interface, said method comprising: determining, on a MT 2 device, whether said PPP renegotiation is occurring on said U m interface; buffering, in said MT 2 device, data received from a TE 2 device, over a R m interface, when said determining determines that said PPP renegotiation is occurring on said U m interface; determining whether an amount of free buffer space in said MT 2 device is less than a predetermined threshold; and asserting flow control of data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said amount of said free buffer space is determined to be less than said predetermined threshold.
Claim 7
Independent Claim
128 words
A method of preventing data loss during a PPP renegotiation on a U m interface, said method comprising: determining, on a MT 2 device, whether said PPP renegotiation is occurring on said U m interface; buffering, in said MT 2 device, data received from a TE 2 device, over a R m interface, when said determining determines that said PPP renegotiation is occurring on said U m interface; determining whether an amount of free buffer space in said MT 2 device is less than a predetermined threshold; and asserting flow control of data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said amount of said free buffer space is determined to be less than said predetermined threshold.
Claim 8
Dependent Claim
35 words
The method of claim 5 , wherein said asserting flow control comprises: using electrical signalling on a physical level interface between said TE 2 device and said MT 2 device to assert said flow control.
Claim 9
Dependent Claim
24 words
The method of claim 6 , wherein said using said electrical signalling comprises turning off a clear to send signal on a RS232 interface.
Claim 10
Dependent Claim
23 words
The method of claim 5 , further comprising: disabling said flow control when said determining determines that said PPP renegotiation is not occurring.
Claim 11
Dependent Claim
92 words
An MT 2 device arranged to be connected to a TE 2 device over a R m interface and to a base station/mobile switching center through a wireless U m interface, said MT 2 device comprising: means for determining whether a PPP renegotiation is occurring on said U m interface; and means for asserting flow control of data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said determining means determines that said PPP renegotiation is occurring on said U m interface.
Claim 12
Dependent Claim
92 words
An MT 2 device arranged to be connected to a TE 2 device over a R m interface and to a base station/mobile switching center through a wireless U m interface, said MT 2 device comprising: means for determining whether a PPP renegotiation is occurring on said U m interface; and means for asserting flow control of data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said determining means determines that said PPP renegotiation is occurring on said U m interface.
Claim 13
Dependent Claim
38 words
The MT 2 device of claim 9 , wherein said asserting means comprises: means for using electrical signalling on a physical level interface between said TE 2 device and said MT 2 device to assert said flow control.
Claim 14
Dependent Claim
29 words
The MT 2 device of claim 10 , wherein said means for using electrical signalling comprises means for turning off a clear to send signal on a RS232 interface.
Claim 15
Dependent Claim
54 words
The MT 2 device of claim 4 , further comprising: means for disabling said flow control of said data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said determining means determines that said PPP renegotiation is not occurring on said U m interface.
Claim 16
Dependent Claim
147 words
An MT 2 device arranged to be connected to a TE 2 device over a R m interface and to a base station/mobile switching center through a wireless U m interface, said MT 2 device comprising: means for determining whether a PPP renegotiation is occurring on said U m interface; means for buffering data received from said TE 2 device, over said R m interface, when said determining means determines that said PPP renegotiation is occurring on said U m interface; means for determining whether an amount of free buffer space in said MT 2 device is less than a predetermined threshold; and means for asserting flow control of data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said determining means determines that said amount of said free buffer space is less than said predetermined threshold.
Claim 17
Dependent Claim
147 words
An MT 2 device arranged to be connected to a TE 2 device over a R m interface and to a base station/mobile switching center through a wireless U m interface, said MT 2 device comprising: means for determining whether a PPP renegotiation is occurring on said U m interface; means for buffering data received from said TE 2 device, over said R m interface, when said determining means determines that said PPP renegotiation is occurring on said U m interface; means for determining whether an amount of free buffer space in said MT 2 device is less than a predetermined threshold; and means for asserting flow control of data to be output from said TE 2 device to said MT 2 device, over said R m interface, when said determining means determines that said amount of said free buffer space is less than said predetermined threshold.
Claim 18
Dependent Claim
38 words
The MT 2 device of claim 13 , wherein said asserting means comprises: means for using electrical signalling on a physical level interface between said TE 2 device and said MT 2 device to assert said flow control.
Claim 19
Dependent Claim
30 words
The MT 2 device of claim 14 , wherein said means for using said electrical signalling comprises means for turning off a clear to send signal on a RS232 interface.
Claim 20
Dependent Claim
29 words
The MT 2 device of claim 13 , further comprising: means for disabling said flow control when said means for determining determines that said PPP renegotiation is not occurring.
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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) | 2005-10-07 | 2006-04-08 | 2006-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-10-07 | 2010-04-08 | 2010-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-10-07 | 2014-04-08 | 2014-10-08 | $7700.00 | Window Closed / Lapsed |