US Patent No: 6,091,954
Number of patents in Portfolio can not be more than 2000
Channel assignment in enhanced fixed-plan mobile communications systems
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Jul 18, 2000
Issued date -
Apr 7, 1997
filing date -
08/831,536
serial no -
In Force
status
Importance
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Abstract
In a multi-reuse level cellular communications system, a channel is assigned for use by a mobile unit by first determining whether the mobile unit is a non-enhanced mobile unit or an enhanced mobile unit. Then a determination is made as to the type of communication service being requested. A minimum link quality required by the mobile unit can then be established based on factors that include the mobile unit type and the type of communication service being requested. A base station that has the necessary receiver detection capabilities and transceiver processing capabilities is then selected, and a channel, corresponding to a highest reuse plan, available to the base station is assigned to the call.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,989,230 Cellular cordless telephone | 301 | 1988 | |
| 5,257,398 Hopped-carrier dynamic frequency reuse | 59 | 1990 | |
| 5,038,399 Method for assigning channel reuse levels in a multi-level cellular system | 135 | 1990 | |
| 5,127,042 Cellular cordless telephone | 216 | 1991 | |
| 5,428,815 Communication system with geographic reuse dynamically sensitive to communication unit type | 29 | 1991 | |
| 5,280,630 Method and apparatus for dynamic channel allocation | 146 | 1992 | |
| 5,392,458 Trunked communication system with variable communication capability support for roamers | 37 | 1993 | |
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| 5,471,645 Method of allocating channels in multi-rate channel environment | 35 | 1992 | |
| 5,412,375 Method of selecting an air interface for communication in a communication system | 68 | 1993 | |
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| 5,504,939 Communication channel selection in cellular radio communication systems | 55 | 1993 | |
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| 5,212,684 Protocol and transceiver for cordless/cellular telephone service | 161 | 1990 | |
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| 5,483,666 Method for allocating channels in a microcellular system | 57 | 1992 | |
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| 5,313,653 Method for a communication unit to maintain a data base of system services | 41 | 1992 | |
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| 5,386,589 Transmission power control system capable of keeping signal quality constant in mobile communication network | 99 | 1993 | |
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| 5,561,843 Mobile radio communications system | 3 | 1995 | |
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| 5,251,249 Method of upgrading a cellular network | 30 | 1990 | |