Patent US5636223A successfully refreshed from Google Patents.
US5636223A
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Methods of adaptive channel access attempts
Assignee: Google Technology Holdings LLC
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Filing: 1995-06-27
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Granted: 1997-06-03
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Expires: 2015-06-27
Abstract
Abstract In a data communication system (100) including infrastructure (101) arranged to communicate with a plurality of terminals (103) over a channel (109), a method of adaptable channel access practiced at a terminal (103) including determining an access priority value (303), responsive thereto ascertaining when the channel is available (305), and then executing a channel access attempt (307). The access priority value is determined with information received by the terminal or information available to the terminal.
Inventors
- 👤 Karl A. Reardon
- 👤 Bud Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:37
CPC Classifications
H; H04; H04W; H04W74/00; H04W74/02; H04L; H04L12/00; H04L12/28; H04L12/40; H04L12/40143; H04L12/4015; H04L12/407; H04L12/413; H04W74/08; H04W74/0866; H04W74/0875
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
89 words
In a data communication system including infrastructure arranged to communicate with a plurality of terminals over a channel, a method of adaptable channel access practiced at a terminal comprising the steps of: determining an access priority value; ascertaining a random time, responsive to said access priority value; testing whether said channel is available; if said channel is not available, waiting for said random time to expire and repeating said step of testing; and executing, responsive to said step of testing, a channel access attempt when said channel is available.
Claim 2
Dependent Claim
89 words
In a data communication system including infrastructure arranged to communicate with a plurality of terminals over a channel, a method of adaptable channel access practiced at a terminal comprising the steps of: determining an access priority value; ascertaining a random time, responsive to said access priority value; testing whether said channel is available; if said channel is not available, waiting for said random time to expire and repeating said step of testing; and executing, responsive to said step of testing, a channel access attempt when said channel is available.
Claim 3
Dependent Claim
37 words
The method of claim 1 wherein said step of determining an access priority value further includes the steps of: receiving a message to provide access information, and deriving, responsive to said access information, said access priority value.
Claim 4
Dependent Claim
26 words
The method of claim 2 wherein said step of receiving a message further provides said access information corresponding to a number of terminals registered for service.
Claim 5
Dependent Claim
23 words
The method of claim 2 wherein said step of receiving a message further provides said access information corresponding to a channel loading factor.
Claim 6
Dependent Claim
23 words
The method of claim 2 wherein said step of receiving a message further provides said access information corresponding to a system management parameter.
Claim 7
Dependent Claim
24 words
The method of claim 5 wherein said step of receiving a message further provides said system management parameter corresponding to a channel priority threshold.
Claim 8
Dependent Claim
33 words
The method of claim 1 wherein said step of determining an access priority value further includes a step of deriving said access priority value in accordance with a number of channel access attempts.
Claim 9
Dependent Claim
30 words
The method of claim 1 wherein said step of determining an access priority value further includes a step of deriving said access priority value in accordance with a terminal priority.
Claim 10
Dependent Claim
33 words
The method of claim 1 wherein said step of determining an access priority value further includes a step of deriving said access priority value in accordance with a change in channel priority threshold.
Claim 11
Dependent Claim
33 words
The method of claim 1 wherein said step of determining an access priority value further includes a step of deriving said access priority value in accordance with a user selected priority access level.
Claim 12
Dependent Claim
23 words
The method of claim 1 wherein said step of ascertaining further includes a step of receiving an indicator corresponding to the channel availability.
Claim 13
Dependent Claim
49 words
The method of claim 1 wherein said step of ascertaining when said channel is available further includes; a step of checking to see if said channel is busy; if so waiting a random time that corresponds to said access priority value; and then rechecking whether said channel is busy.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-02 | 2000-12-02 | 2001-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-02 | 2004-12-02 | 2005-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-02 | 2008-12-02 | 2009-06-03 | $7700.00 | Window Closed / Lapsed |