Patent US5612948A successfully refreshed from Google Patents.
US5612948A
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High bandwidth communication network and method
Assignee: General Dynamics Mission Systems Inc
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Filing: 1994-11-18
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Granted: 1997-03-18
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Expires: 2014-11-18
Abstract
Abstract A cellular communication network (10) and method operates at frequencies above 2 GHz and achieves widespread coverage within a cell (14) by adapting routing channels, symbol rates, and FEC coding processes (78) to current RF broadcast conditions. A portion of subscriber nodes (16) act as repeaters for a base node (12). If subscriber nodes (16) cannot directly communicate with the base node (12), their communications may be indirectly routed to the base node (12) through one or more repeating subscriber nodes (16'). If current conditions do not support a high data rate, then lower data rates are supported by selection of FEC coding processes (78). If increasingly inclusive FEC coding does not achieve a data rate supportable by current conditions, slower symbol rates may be used. Communications at slower symbol rates may utilize narrower frequency bands thus keeping wider frequency bands available for higher speed usage.
Inventors
- 👤 Bruce A. Fette
- 👤 Peter J. Leahy
- 👤 David M. Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:33
CPC Classifications
H; H04; H04W; H04W40/00; H04W40/02; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2643; H04B7/2646; H04L; H04L1/00; H04L1/0001; H04L1/0002; H04L1/0009; H04L1/0015; H04L1/0017; H04B7/14; H04B7/15; H04B7/155; H04L1/0023; H04L1/0026; H04L2001/0092; H04L2001/0097; H04W16/00; H04W16/24; H04W16/26; H04W84/00; H04W84/02; H04W84/04; H04W84/042; H04W88/00; H04W88/02; H04W88/04
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
120 words
A method of operating a high bandwidth communication network, said method comprising the steps of: directly receiving, at a subscriber node, signals transmitted from a base node; identifying a communications service to be provided; identifying a minimum data rate necessary to support said communications service; determining whether to directly communicate between said base node and said subscriber node or to indirectly communicate between said base node and said subscriber node through a repeater subscriber node, selecting direct communication between said base node and said subscriber node when said data rate is supportable through direct communication with said base node; and engaging in communications over said network, said communications occurring through a communication channel selected in response to said determining step.
Claim 2
Independent Claim
120 words
A method of operating a high bandwidth communication network, said method comprising the steps of: directly receiving, at a subscriber node, signals transmitted from a base node; identifying a communications service to be provided; identifying a minimum data rate necessary to support said communications service; determining whether to directly communicate between said base node and said subscriber node or to indirectly communicate between said base node and said subscriber node through a repeater subscriber node, selecting direct communication between said base node and said subscriber node when said data rate is supportable through direct communication with said base node; and engaging in communications over said network, said communications occurring through a communication channel selected in response to said determining step.
Claim 3
Dependent Claim
62 words
A method as claimed in claim 1 wherein said determining step further comprises the steps of: determining, in response to said signals, a symbol rate supportable by communications with said base node; and selecting direct communication between said base node and said subscriber node when said data rate is possible with said symbol rate supportable through direct communication with said base node.
Claim 4
Dependent Claim
55 words
A method as claimed in claim 2 wherein: said method additionally comprises the step of configuring said base node and said subscriber node to communicate at any one of two or more symbol rates; and said engaging step engages in communications occurring at a symbol rate selected in response to said symbol rate determining step.
Claim 5
Dependent Claim
82 words
A method as claimed in claim 3 wherein: said base node and said subscriber node are configured to engage in communications in either of a first frequency band or a second frequency band, wherein the first frequency band accommodates a higher symbol rate than the second frequency band; and said engaging step transmits radio frequency (RF) signals and comprises the step of selecting one of said first frequency band or said second frequency band in response to said symbol rate determining step.
Claim 6
Dependent Claim
78 words
A method as claimed in claim 1 wherein: said method additionally comprises the step of configuring said nodes to communicate using any one of two or more forward error correction (FEC) coding processes; said method additionally comprises the step of selecting one of said FEC coding processes to use in encoding and decoding said communications; and said engaging step comprises the step of applying said selected one of said FEC coding processes to data communicated over said network.
Claim 7
Dependent Claim
20 words
A method as claimed in claim 1 wherein said engaging step comprises the step of transmitting radio frequency (RF) signals.
Claim 8
Dependent Claim
18 words
A method as claimed in claim 6 wherein said RF signals exhibit a frequency greater than 2 GHz.
Claim 9
Dependent Claim
65 words
A method as claimed in claim 6 wherein: said RF signals are in either of a relatively wider frequency band that accommodates a relatively higher symbol rate or a relatively narrower frequency band that accommodates a relatively lower symbol rate; and said engaging step comprises the step of selecting one of said relatively wider and relatively narrower frequency bands in response to said determining step.
Claim 10
Independent Claim
124 words
A method of operating a high bandwidth communication network, said method comprising the steps of: transmitting a probe message from a base node to a repeater subscriber node; deciding, at said repeater subscriber node in response to said probe message, whether to repeat said probe message or to refrain from repeating said probe message; configuring said repeater subscriber node to either repeat said probe message or to refrain from repeating said probe message; determining whether to directly communicate between said base node and a subscriber node or to indirectly communicate between said base node and said subscriber node through said repeater subscriber node; and engaging in communications over said network, said communications occurring through a communication channel selected in response to said determining step.
Claim 11
Independent Claim
124 words
A method of operating a high bandwidth communication network, said method comprising the steps of: transmitting a probe message from a base node to a repeater subscriber node; deciding, at said repeater subscriber node in response to said probe message, whether to repeat said probe message or to refrain from repeating said probe message; configuring said repeater subscriber node to either repeat said probe message or to refrain from repeating said probe message; determining whether to directly communicate between said base node and a subscriber node or to indirectly communicate between said base node and said subscriber node through said repeater subscriber node; and engaging in communications over said network, said communications occurring through a communication channel selected in response to said determining step.
Claim 12
Dependent Claim
32 words
A method as claimed in claim 9 wherein said deciding step decides to refrain from repeating said probe message when said probe message has previously been repeated a predetermined number of times.
Claim 13
Dependent Claim
51 words
A method as claimed in claim 9 additionally comprising the steps of: evaluating signal quality at said repeater subscriber node; and transmitting a connectivity message from said repeater subscriber node to said base node, said connectivity message identifying said repeater subscriber node to said base node and characterizing said signal quality.
Claim 14
Independent Claim
155 words
A method of operating a high bandwidth communication network, said method comprising the steps of: configuring a node which communicates over said network to communicate at any one of two or more symbol rates and with any one of two or more forward error correction (FEC) coding processes; identifying a communications service to be provided; identifying a minimum data rate necessary to support said communications service over said network; determining, in response to said data rate identifying step whether to engage in direct communication between said node and a second node or to indirectly communicate between said node and said second node through a third node; and engaging in communications over said network through a communication channel selected in response to said determining step, said communications occurring at a symbol rate selected in response to said data rate identifying step and with an FEC coding process selected in response to said data rate identifying step.
Claim 15
Independent Claim
155 words
A method of operating a high bandwidth communication network, said method comprising the steps of: configuring a node which communicates over said network to communicate at any one of two or more symbol rates and with any one of two or more forward error correction (FEC) coding processes; identifying a communications service to be provided; identifying a minimum data rate necessary to support said communications service over said network; determining, in response to said data rate identifying step whether to engage in direct communication between said node and a second node or to indirectly communicate between said node and said second node through a third node; and engaging in communications over said network through a communication channel selected in response to said determining step, said communications occurring at a symbol rate selected in response to said data rate identifying step and with an FEC coding process selected in response to said data rate identifying step.
Claim 16
Dependent Claim
73 words
A method as claimed in claim 12 wherein said determining step comprises the steps of: receiving, at said node, signals transmitted from said second and third nodes; determining, in response to said signals, a symbol rate supportable by said direct communication between said node and said second node; and selecting said direct communication between said node and said second node when said symbol rate is supportable through direct communication with said second node.
Claim 17
Independent Claim
202 words
A method of operating a high bandwidth communication network, said method comprising the steps of: configuring a node which communicates over said network to communicate at any one of two or more symbol rates and with any one of two or more forward error correction (FEC) coding processes; identifying a communications service to be provided; identifying a minimum data rate necessary to support said communications service over said network: transmitting a probe message from a second node to a third node; deciding, at said third node in response to said probe message, whether to repeat said probe message or to refrain from repeating said probe message; configuring said third node to either repeat said probe message or to refrain from repeating said probe message; determining whether to engage in direct communication between said node and said second node or to indirectly communicate between said node and said second node through said third node; and engaging in communications over said network through a communication channel selected in response to said determining step, said communication occurring at a symbol rate selected in response to said data rate identifying step and with an FEC coding process selected in response to said data rate identifying step.
Claim 18
Independent Claim
202 words
A method of operating a high bandwidth communication network, said method comprising the steps of: configuring a node which communicates over said network to communicate at any one of two or more symbol rates and with any one of two or more forward error correction (FEC) coding processes; identifying a communications service to be provided; identifying a minimum data rate necessary to support said communications service over said network: transmitting a probe message from a second node to a third node; deciding, at said third node in response to said probe message, whether to repeat said probe message or to refrain from repeating said probe message; configuring said third node to either repeat said probe message or to refrain from repeating said probe message; determining whether to engage in direct communication between said node and said second node or to indirectly communicate between said node and said second node through said third node; and engaging in communications over said network through a communication channel selected in response to said determining step, said communication occurring at a symbol rate selected in response to said data rate identifying step and with an FEC coding process selected in response to said data rate identifying step.
Claim 19
Dependent Claim
141 words
A wireless communication network subscriber node for use in a network having a high likelihood of successful communications within a coverage area, said node comprising: a symbol rate controller configured to allow said node to communicate at any one of two or more symbol rates; a forward error correction (FEC) controller configured to apply any one of two or more FEC coding processes data being communicated; a symbol rate predictor configured to predict a symbol rate which may be supported by communications between said subscriber node and a base node; and a data rate controller, coupled to said symbol rate predictor, symbol rate controller, and FEC controller, said data rate controller being configured to define a data rate at which to engage in communications over said network based on information received from said symbol rate predictor and said data rate controller.
Claim 20
Dependent Claim
141 words
A wireless communication network subscriber node for use in a network having a high likelihood of successful communications within a coverage area, said node comprising: a symbol rate controller configured to allow said node to communicate at any one of two or more symbol rates; a forward error correction (FEC) controller configured to apply any one of two or more FEC coding processes data being communicated; a symbol rate predictor configured to predict a symbol rate which may be supported by communications between said subscriber node and a base node; and a data rate controller, coupled to said symbol rate predictor, symbol rate controller, and FEC controller, said data rate controller being configured to define a data rate at which to engage in communications over said network based on information received from said symbol rate predictor and said data rate controller.
Claim 21
Dependent Claim
24 words
A subscriber node as claimed in claim 15 wherein said communications are conveyed by radio frequency (RF) signals exhibiting frequencies greater than 2 GHz.
Claim 22
Dependent Claim
77 words
A subscriber node as claimed in claim 15 additionally comprising a radio coupled to said symbol rate controller and configured to engage in communications in either of a first frequency band or a second frequency band, wherein the first frequency band accommodates a higher symbol rate than the second frequency band; and said symbol rate controller is configured to select one of said relatively wider and relatively narrower frequency bands in response to said data rate controller.
Claim 23
Dependent Claim
57 words
A subscriber node as claimed in claim 15 additionally comprising a channel controller coupled to said data rate controller, said channel controller being configured to determine whether to engage in direct communication between said subscriber node and said base node or to indirectly communicate between said subscriber node and said base node through a repeater subscriber node.
Claim 24
Dependent Claim
94 words
A subscriber node as claimed in claim 18 wherein: said subscriber node additionally comprises a radio coupled to said symbol rate predictor and configured to receive signals transmitted from said base and repeater subscriber nodes; said symbol rate predictor is configured to predict symbol rates supportable by said direct communication between said subscriber node and said base node; and said channel controller is configured to select direct communication between said subscriber node and said base node when said data rate is compatible with said symbol rate predicted for direct communication with said base node.
References Cited (Backward Citations)
US4870642A
Cited
US4747160A
Cited
US5152002A
Cited
US5142532A
Cited
US5483676A
Cited
US5179559A
Cited
US5218618A
Cited
US5487069A
Cited
US5490284A
Cited
US5481532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-17 | 2000-09-16 | 2001-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-17 | 2004-09-16 | 2005-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-17 | 2008-09-16 | 2009-03-18 | $7700.00 | Window Closed / Lapsed |