Patent US5901357A successfully refreshed from Google Patents.
US5901357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency allocation for subscribers of multiple telephone systems having frequency sharing
Assignee: Google Technology Holdings LLC
•
Filing: 1993-09-20
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Granted: 1999-05-04
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Expires: 2013-09-20
Abstract
Abstract A portable radiotelephone (101) cooperatively operates with a cordless base station (115) over the local coverage area using cellular frequency channels. Both the portable radiotelephone (101) and the cordless base station (115) scan the available channels to generate separate priority lists. The portable radiotelephone (101) and the cordless base station (115) categorize the available channels in its own priority list from best to worst. The priority list from both the portable radiotelephone (101) and the cordless base station (115) are combined to form a master priority list. The cordless telephone system then assigns the clearest available channel from the master priority list for use in the cordless telephone system. Thus, interference to and from the cellular system and other users of the cellular frequencies is minimized and the need for frequency planning is eliminated.
Inventors
- 👤 Robert F. D'Avello
- 👤 Robert K. Krolopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:03
CPC Classifications
H; H04; H04W; H04W72/00; H04W72/50; H04W72/56; H04W72/563; H04W16/00; H04W16/14; H04W24/00; H04W48/00; H04W48/18; H04W72/04; H04W72/044; H04W72/0453; H04W72/54; H04W72/541; H04W84/00; H04W84/02; H04W84/04; H04W84/042; H04W88/00; H04W88/02; H04W88/06
Claims Analysis
Total Claims: 83
Claim 1
Independent Claim
186 words
A subscriber unit comprising: a transceiver for communicating with a first communication system and a second communication system and for scanning frequency channels of the first communication system servicing a wide area at a relatively high power level and for scanning frequency channels of the second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 2
Dependent Claim
186 words
A subscriber unit comprising: a transceiver for communicating with a first communication system and a second communication system and for scanning frequency channels of the first communication system servicing a wide area at a relatively high power level and for scanning frequency channels of the second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 3
Dependent Claim
17 words
A subscriber unit according to claim 1 wherein the subscriber unit is a portable cellular cordless unit.
Claim 4
Dependent Claim
16 words
A subscriber unit according to claim 1 wherein the subscriber unit is a cordless base unit.
Claim 5
Dependent Claim
81 words
A subscriber unit according to claim 1 wherein the processor further performs the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the processor further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of ranking.
Claim 6
Dependent Claim
38 words
A subscriber unit according to claim 1 wherein the step of determining a measure of interference further comprises the step of measuring the quality of a signal on the at least one frequency channel of the frequency channels.
Claim 7
Dependent Claim
15 words
A subscriber unit according to claim 5 wherein the signal quality further comprises signal magnitude.
Claim 8
Dependent Claim
174 words
A subscriber unit comprising: a transceiver for scanning frequency channels of a first communication system servicing a wide area at a relatively high power level and for scanning frequency channels of a second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 9
Dependent Claim
174 words
A subscriber unit comprising: a transceiver for scanning frequency channels of a first communication system servicing a wide area at a relatively high power level and for scanning frequency channels of a second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 10
Dependent Claim
17 words
A subscriber unit according to claim 7 wherein the subscriber unit is a portable cellular cordless unit.
Claim 11
Dependent Claim
16 words
A subscriber unit according to claim 7 wherein the subscriber unit is a cordless base unit.
Claim 12
Dependent Claim
24 words
A subscriber unit according to claim 7 wherein the type of service comprises at least one of cellular radiotelephone service and cordless radiotelephone service.
Claim 13
Dependent Claim
81 words
A subscriber unit according to claim 7 wherein the processor further performs the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the processor further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of ranking.
Claim 14
Dependent Claim
138 words
A communication system having a predetermined set of frequency channels for servicing a first coverage area, comprising: first means for receiving at least a first set of channels of the predetermined set of frequency channels within a second coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use within the second coverage area.
Claim 15
Dependent Claim
138 words
A communication system having a predetermined set of frequency channels for servicing a first coverage area, comprising: first means for receiving at least a first set of channels of the predetermined set of frequency channels within a second coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use within the second coverage area.
Claim 16
Dependent Claim
60 words
A communication system according to claim 12 wherein means for sorting further comprises means for ranking each frequency channel of the first set of frequency channels according to the determined type of service operating on the first set of frequency channels and the determined measure of interference on the first set of frequency channels within each determined type of service.
Claim 17
Dependent Claim
161 words
A communication system according to claim 12 further comprising: second means for receiving at least a second set of channels of the predetermined set of frequency channels within the second coverage area; means for determining a type of service operating on each frequency channel of the second set of frequency channels; means for determining a measure of interference on each frequency channel of the second set of frequency channels; means for sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels for use within the second coverage area; and means for combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use within the second coverage area.
Claim 18
Dependent Claim
60 words
A communication system according to claim 14 wherein means for sorting further comprises means for ranking each frequency channel of the second set of frequency channels according to the determined type of service operating on the second set of frequency channels and the determined measure of interference on the second set of frequency channels within each determined type of service.
Claim 19
Dependent Claim
304 words
A cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area, comprising: a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit including: means for receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit including: means for receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the second set of frequency channels; means for determining a measure of interference on each frequency channel of the second set of frequency channels; and means for sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and means for combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the cordless communication system.
Claim 20
Dependent Claim
304 words
A cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area, comprising: a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit including: means for receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit including: means for receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the second set of frequency channels; means for determining a measure of interference on each frequency channel of the second set of frequency channels; and means for sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and means for combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the cordless communication system.
Claim 21
Dependent Claim
211 words
A communication system comprising: a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a subscriber unit comprising: a transceiver for communicating with the first communication system and the second communication system and for scanning the frequency channels of the first communication system and for scanning the frequency channels of the second communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the second area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the second area of the second communication system responsive the step of determining.
Claim 22
Dependent Claim
211 words
A communication system comprising: a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a subscriber unit comprising: a transceiver for communicating with the first communication system and the second communication system and for scanning the frequency channels of the first communication system and for scanning the frequency channels of the second communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the second area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the second area of the second communication system responsive the step of determining.
Claim 23
Dependent Claim
38 words
A communication system according to claim 17 wherein the step of determining a measure of interference further comprises the step of measuring the quality of a signal on the at least one frequency channel of the frequency channels.
Claim 24
Dependent Claim
81 words
A communication system according to claim 17 wherein the processor further performs the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the processor further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the second area of the second communication system responsive the step of ranking.
Claim 25
Dependent Claim
199 words
A communication system comprising: a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a subscriber unit comprising: a transceiver for scanning the frequency channels of the first communication system and for scanning the frequency channels of the second communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the second area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the second area of the second communication system responsive the step of determining.
Claim 26
Dependent Claim
199 words
A communication system comprising: a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a subscriber unit comprising: a transceiver for scanning the frequency channels of the first communication system and for scanning the frequency channels of the second communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the second area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the second area of the second communication system responsive the step of determining.
Claim 27
Dependent Claim
24 words
A communication system according to claim 20 wherein the type of service comprises at least one of cellular radiotelephone service and cordless radiotelephone service.
Claim 28
Dependent Claim
81 words
A communication system according to claim 20 wherein the processor further performs the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the processor further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the second area of the second communication system responsive the step of ranking.
Claim 29
Dependent Claim
152 words
A communication system comprising: a first communication system having a predetermined set of frequency channels for servicing a first coverage area; a second communication system for servicing a second coverage area; first means for receiving at least a first set of channels of the predetermined set of frequency channels within the second coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use by the second communication system.
Claim 30
Dependent Claim
152 words
A communication system comprising: a first communication system having a predetermined set of frequency channels for servicing a first coverage area; a second communication system for servicing a second coverage area; first means for receiving at least a first set of channels of the predetermined set of frequency channels within the second coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use by the second communication system.
Claim 31
Dependent Claim
60 words
A communication system according to claim 23 wherein means for sorting further comprises means for ranking each frequency channel of the first set of frequency channels responsive to the determined type of service operating on the first set of frequency channels and the determined measure of interference on the first set of frequency channels within each determined type of service.
Claim 32
Dependent Claim
161 words
A communication system according to claim 23 further comprising second means for receiving at least a second set of channels of the predetermined set of frequency channels within the second coverage area; means for determining a type of service operating on each frequency channel of the second set of frequency channels; means for determining a measure of interference on each frequency channel of the second set of frequency channels; means for sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels for use by the second communication system; and means for combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the second communication system.
Claim 33
Dependent Claim
60 words
A communication system according to claim 25 wherein means for sorting further comprises means for ranking each frequency channel of the second set of frequency channels responsive to the determined type of service operating on the second set of frequency channels and the determined measure of interference on the second set of frequency channels within each determined type of service.
Claim 34
Dependent Claim
307 words
A communication system comprising: a cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area; a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit including: means for receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit including: means for receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the second set of frequency channels; means for determining a measure of interference on each frequency channel of the second set of frequency channels; and means for sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and means for combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the second communication system.
Claim 35
Dependent Claim
307 words
A communication system comprising: a cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area; a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit including: means for receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the first set of frequency channels; means for determining a measure of interference on each frequency channel of the first set of frequency channels; and means for sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit including: means for receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; means for determining a type of service operating on each frequency channel of the second set of frequency channels; means for determining a measure of interference on each frequency channel of the second set of frequency channels; and means for sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and means for combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the second communication system.
Claim 36
Dependent Claim
107 words
A communication apparatus comprising: a transceiver for alternatively communicating on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined a measure of interference on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 37
Dependent Claim
107 words
A communication apparatus comprising: a transceiver for alternatively communicating on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined a measure of interference on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 38
Dependent Claim
107 words
A communication apparatus comprising: a transceiver for alternatively communicating on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined type of service operating on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 39
Dependent Claim
107 words
A communication apparatus comprising: a transceiver for alternatively communicating on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined type of service operating on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 40
Dependent Claim
195 words
A communication apparatus comprising: a portable subscriber unit comprising: a transceiver for communicating with a first communication system and a second communication system and for scanning frequency channels of the first communication system servicing a wide area at a relatively high power level and for scanning frequency channels of the second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the portable subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and sorting frequency channels of the frequency channels responsive to the step of determining to produce a first list of frequency channels for use by the transceiver for communicating with the second communication system when the portable subscriber unit is within the local area of the second communication system.
Claim 41
Dependent Claim
195 words
A communication apparatus comprising: a portable subscriber unit comprising: a transceiver for communicating with a first communication system and a second communication system and for scanning frequency channels of the first communication system servicing a wide area at a relatively high power level and for scanning frequency channels of the second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the portable subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and sorting frequency channels of the frequency channels responsive to the step of determining to produce a first list of frequency channels for use by the transceiver for communicating with the second communication system when the portable subscriber unit is within the local area of the second communication system.
Claim 42
Dependent Claim
247 words
A communication system according to claim 30 further comprising: a base subscriber unit comprising: a transceiver for scanning frequency channels of the first communication system and for scanning frequency channels of the second communication system; and a processor for performing the steps of: tuning the transceiver to at least one frequency channel of the frequency channels when the base subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and sorting frequency channels of the frequency channels responsive to the step of determining to produce a second list of frequency channels for use by the transceiver for communicating with the second communication system when the base subscriber unit is within the local area of the second communication system; wherein the first list of frequency channels and the second list of frequency channels are combined within at least one of the processor of the portable subscriber unit and the processor of the base subscriber unit to produce a combined list of frequency channels; and wherein the at least one of the processor of the portable subscriber unit and the processor of the base subscriber unit assigns at least one frequency channel of the frequency channels from the combined list of frequency channels to the transceiver of the portable subscriber unit and the transceiver of the base subscriber unit for communicating in the second communication system.
Claim 43
Independent Claim
180 words
A method of operating subscriber unit which communicates with a first communication system and a second communication system, the method comprising the steps of: scanning frequency channels of the first communication system servicing a wide area at a relatively high power level; scanning frequency channels of the second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; tuning a transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 44
Independent Claim
180 words
A method of operating subscriber unit which communicates with a first communication system and a second communication system, the method comprising the steps of: scanning frequency channels of the first communication system servicing a wide area at a relatively high power level; scanning frequency channels of the second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; tuning a transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 45
Dependent Claim
14 words
A method according to claim 32 wherein the subscriber unit is a portable unit.
Claim 46
Dependent Claim
14 words
A method according to claim 32 wherein the subscriber unit is a portable unit.
Claim 47
Dependent Claim
37 words
A method according to claim 32 wherein the step of determining a measure of interference further comprises the step of measuring the quality of a signal on the at least one frequency channel of the frequency channels.
Claim 48
Dependent Claim
79 words
A method according to claim 32 further comprising the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the step of assigning further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of ranking.
Claim 49
Independent Claim
168 words
A method of operating a subscriber unit comprising the steps of: scanning frequency channels of a first communication system servicing a wide area at a relatively high power level; scanning frequency channels of a second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 50
Independent Claim
168 words
A method of operating a subscriber unit comprising the steps of: scanning frequency channels of a first communication system servicing a wide area at a relatively high power level; scanning frequency channels of a second communication system servicing a local area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; tuning the transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 51
Dependent Claim
14 words
A method according to claim 37 wherein the subscriber unit is a portable unit.
Claim 52
Dependent Claim
14 words
A method according to claim 37 wherein the subscriber unit is a base unit.
Claim 53
Dependent Claim
23 words
A method according to claim 37 wherein the type of service comprises at least one of cellular radiotelephone service and cordless radiotelephone service.
Claim 54
Dependent Claim
79 words
A method according to claim 37 further comprising the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the step of assigning further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of ranking.
Claim 55
Independent Claim
136 words
A method for operating a communication system having a predetermined set of frequency channels for servicing a first coverage area, comprising the steps of: receiving at least a first set of channels of the predetermined set of frequency channels within a second coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use within the second coverage area.
Claim 56
Independent Claim
136 words
A method for operating a communication system having a predetermined set of frequency channels for servicing a first coverage area, comprising the steps of: receiving at least a first set of channels of the predetermined set of frequency channels within a second coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use within the second coverage area.
Claim 57
Dependent Claim
60 words
A method according to claim 42 wherein step of sorting further comprises the step of ranking each frequency channel of the first set of frequency channels according to the determined type of service operating on the first set of frequency channels and the determined measure of interference on the first set of frequency channels within each determined type of service.
Claim 58
Dependent Claim
152 words
A method according to claim 42 further comprising the steps of: receiving at least a second set of channels of the predetermined set of frequency channels within the second coverage area; determining a type of service operating on each frequency channel of the second set of frequency channels; determining a measure of interference on each frequency channel of the second set of frequency channels; sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels for use within the second coverage area; and combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use within the second coverage area.
Claim 59
Dependent Claim
60 words
A method according to claim 44 wherein step of sorting further comprises the step of ranking each frequency channel of the second set of frequency channels according to the determined type of service operating on the second set of frequency channels and the determined measure of interference on the second set of frequency channels within each determined type of service.
Claim 60
Independent Claim
300 words
A method of operating a cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area, comprising the steps of: operating a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit performing the steps of: receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit performing the steps of: receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the second set of frequency channels; determining a measure of interference on each frequency channel of the second set of frequency channels; and sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the cordless communication system.
Claim 61
Independent Claim
300 words
A method of operating a cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area, comprising the steps of: operating a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit performing the steps of: receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit performing the steps of: receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the second set of frequency channels; determining a measure of interference on each frequency channel of the second set of frequency channels; and sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the cordless communication system.
Claim 62
Independent Claim
208 words
A method of operating a communication system comprising the steps of: operating a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; operating a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and operating a subscriber unit which communicates with a first communication system and a second communication system comprising the steps of: scanning frequency channels of the first communication system; scanning frequency channels of the second communication system; tuning a transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 63
Independent Claim
208 words
A method of operating a communication system comprising the steps of: operating a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; operating a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and operating a subscriber unit which communicates with a first communication system and a second communication system comprising the steps of: scanning frequency channels of the first communication system; scanning frequency channels of the second communication system; tuning a transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a measure of interference on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 64
Dependent Claim
37 words
A method according to claim 47 wherein the step of determining a measure of interference further comprises the step of measuring the quality of a signal on the at least one frequency channel of the frequency channels.
Claim 65
Dependent Claim
79 words
A method according to claim 47 further comprising the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the step of assigning further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of ranking.
Claim 66
Independent Claim
197 words
A method of operating a communication system comprising the steps of: operating a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; operating a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and operating a subscriber unit comprising the steps of: scanning frequency channels of the first communication system; scanning frequency channels of the second communication system; tuning a transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 67
Independent Claim
197 words
A method of operating a communication system comprising the steps of: operating a first communication system having frequency channels for servicing a first coverage area at a relatively high power level; operating a second communication system having frequency channels for servicing a second coverage area at a relatively low power level, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system; and operating a subscriber unit comprising the steps of: scanning frequency channels of the first communication system; scanning frequency channels of the second communication system; tuning a transceiver to at least one frequency channel of the frequency channels when the subscriber unit is within the local area of the second communication system; determining a type of service operating on at least one frequency channel of the frequency channels responsive to the step of tuning; and assigning the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of determining.
Claim 68
Dependent Claim
23 words
A method according to claim 50 wherein the type of service comprises at least one of cellular radiotelephone service and cordless radiotelephone service.
Claim 69
Dependent Claim
79 words
A method according to claim 50 further comprising the step of: ranking the at least one frequency channel of the frequency channels responsive to the step of determining, wherein the step of assigning further assigns the at least one frequency channel of the frequency channels of the first communication system to the transceiver for communicating with the second communication system when the subscriber unit is within the local area of the second communication system responsive the step of ranking.
Claim 70
Independent Claim
152 words
A method of operating a communication system comprising the steps of: operating a first communication system having a predetermined set of frequency channels for servicing a first coverage area; operating a second communication system for servicing a second coverage area; receiving at least a first set of channels of the predetermined set of frequency channels within the second coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use by the second communication system.
Claim 71
Independent Claim
152 words
A method of operating a communication system comprising the steps of: operating a first communication system having a predetermined set of frequency channels for servicing a first coverage area; operating a second communication system for servicing a second coverage area; receiving at least a first set of channels of the predetermined set of frequency channels within the second coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for use by the second communication system.
Claim 72
Dependent Claim
61 words
A method according to claim 53 wherein the step of sorting further comprises the step of ranking each frequency channel of the first set of frequency channels responsive to the determined type of service operating on the first set of frequency channels and the determined measure of interference on the first set of frequency channels within each determined type of service.
Claim 73
Dependent Claim
152 words
A method according to claim 53 further comprising the steps of: receiving at least a second set of channels of the predetermined set of frequency channels within the second coverage area; determining a type of service operating on each frequency channel of the second set of frequency channels; determining a measure of interference on each frequency channel of the second set of frequency channels; sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels for use by the second communication system; and combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the second communication system.
Claim 74
Dependent Claim
61 words
A method according to claim 55 wherein the step of sorting further comprises the step of ranking each frequency channel of the second set of frequency channels responsive to the determined type of service operating on the second set of frequency channels and the determined measure of interference on the second set of frequency channels within each determined type of service.
Claim 75
Independent Claim
304 words
A method of operating a communication system comprising the steps of: operating a cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area; operating a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit performing the steps of: receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit performing the steps of: receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the second set of frequency channels; determining a measure of interference on each frequency channel of the second set of frequency channels; and sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the second communication system.
Claim 76
Independent Claim
304 words
A method of operating a communication system comprising the steps of: operating a cellular communication system having a predetermined set of frequency channels for servicing a wide coverage area; operating a cordless communication system, including a portable unit and a base station unit, for servicing a limited coverage area; the portable unit performing the steps of: receiving at least a first set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the first set of frequency channels; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined type of service operating on each frequency channel of the first set of frequency channels and the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels; the base station unit performing the steps of: receiving at least a second set of channels of the predetermined set of frequency channels within the limited coverage area; determining a type of service operating on each frequency channel of the second set of frequency channels; determining a measure of interference on each frequency channel of the second set of frequency channels; and sorting the second set of frequency channels responsive to the determined type of service operating on each frequency channel of the second set of frequency channels and the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels; and combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use by the second communication system.
Claim 77
Independent Claim
114 words
A method of operating a communication apparatus comprising the step of: alternatively communicating, by a transceiver, on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined a measure of interference on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 78
Independent Claim
114 words
A method of operating a communication apparatus comprising the step of: alternatively communicating, by a transceiver, on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined a measure of interference on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 79
Independent Claim
114 words
A method of operating a communication apparatus comprising the step of: alternatively communicating, by a transceiver, on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined type of service operating on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 80
Independent Claim
114 words
A method of operating a communication apparatus comprising the step of: alternatively communicating, by a transceiver, on: at least one frequency channel of frequency channels of a first communication system servicing a first area; and at least one frequency channel of frequency channels of a second communication system servicing a second area responsive to a determined type of service operating on at least one frequency channel of the frequency channels of the second communication system when the transceiver is within the second area of the second communication system, wherein at least one of the frequency channels of the second communication system has the same frequency as a frequency channel of the first communication system.
Claim 81
Independent Claim
123 words
A method of operating a communication system having a predetermined set of frequency channels for servicing a subscriber unit which communicates with a first communication system in a first coverage area, the method comprising the steps of: receiving at least a first set of frequency channels of the predetermined set of frequency channels within a second coverage area; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for the subscriber unit to communicate with a second communication within the second coverage area.
Claim 82
Independent Claim
123 words
A method of operating a communication system having a predetermined set of frequency channels for servicing a subscriber unit which communicates with a first communication system in a first coverage area, the method comprising the steps of: receiving at least a first set of frequency channels of the predetermined set of frequency channels within a second coverage area; determining a measure of interference on each frequency channel of the first set of frequency channels; and sorting the first set of frequency channels responsive to the determined measure of interference on each frequency channel of the first set of frequency channels to produce a first list of frequency channels for the subscriber unit to communicate with a second communication within the second coverage area.
Claim 83
Dependent Claim
118 words
A method according to claim 60 further comprising the steps of: receiving at least a second set of frequency channels of the predetermined set of frequency channels within the second coverage area; determining a measure of interference on each frequency channel of the second set of frequency channels; sorting the second set of frequency channels responsive to the determined measure of interference on each frequency channel of the second set of frequency channels to produce a second list of frequency channels for use within the second coverage area; and combining the first list of frequency channels and the second list of frequency channels to produce a master list of frequency channels for use within the second coverage area.
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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) | 2002-05-03 | 2002-11-02 | 2003-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-03 | 2006-11-02 | 2007-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-03 | 2010-11-02 | 2011-05-04 | $7700.00 | Window Closed / Lapsed |