Hopped-carrier dynamic frequency reuse
First Claim
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1. A method of dynamic frequency reuse comprising:
- allocating according to one reuse pattern during one time interval at least one of a plurality of carriersand allocating according to another reuse pattern during another, substantially non-overlapping time interval that carrier, all in substantially non-interfering time synchronism with any proximal reuse of that carrier.
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Abstract
In a cellular radiotelephone network, there is provided a mechanism for dynamic frequency reuse. It comprises: allocating according to one reuse pattern during one time interval at least one of a plurality of hopped carriers and allocating according to another reuse pattern during another, substantially non-overlapping time interval that hopped carrier, all in substantially non-interfering time synchronism with any proximal reuse of that carrier. The attendant advantage is the realization of a dynamically allocatable frequency reuse, using shared carriers and frequency hopping to provide the desired C/I performance.
81 Citations
21 Claims
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1. A method of dynamic frequency reuse comprising:
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allocating according to one reuse pattern during one time interval at least one of a plurality of carriers and allocating according to another reuse pattern during another, substantially non-overlapping time interval that carrier, all in substantially non-interfering time synchronism with any proximal reuse of that carrier.
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2. A method of dynamic frequency reuse comprising:
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allocating according to one reuse pattern during one time interval at least one of a plurality of hopped carriers and allocating according to another reuse pattern during another, substantially non-overlapping time interval that hopped carrier, all in substantially non-interfering time synchronism with any proximal reuse of that carrier. - View Dependent Claims (3, 4, 5)
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6. A method of dynamic frequency reuse in a communication system having a plurality of cells, said method comprising:
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allocating, according to a first reuse pattern during one time interval, a first carrier of a plurality of carriers to a first cell of said plurality of cells and a second carrier of said plurality of carriers to a second cell of said plurality of cells; and adding said second carrier to said first cell and said first carrier to said second cell to form a second reuse pattern; wherein said first carrier is utilized in said first and second cells in substantially non-interfering first and second time sequences, respectively. - View Dependent Claims (7, 8)
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9. A method of dynamic frequency reuse in a communication system having a plurality of cells each having a plurality of sectors, said method comprising:
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allocating, according to a first reuse pattern during one time interval, a first carrier of a plurality of carriers to a first sector of a first cell of said plurality of cells and a second carrier of said plurality of carriers to a first sector of a second cell of said plurality of cells; and adding said second carrier to said first sector of said first cell and said first carrier to said first sector of said second cell to form a second reuse pattern; wherein said first carrier is utilized in said first and second cells in substantially non-interfering first and second time sequences, respectively. - View Dependent Claims (10, 11, 12)
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13. A method of dynamic frequency reuse in a communication system having a plurality of cells with each cell having a plurality of sectors, said method comprising:
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allocating a first hopping sequence to a first sector of a first cell, and a second hopping sequence to a first sector of a second cell, a third hopping sequence to a first sector of a third cell, and a fourth hopping sequence to a first sector of a fourth cell; adding, in response to an increase in a traffic load, said second hopping sequence to said first sector of said first cell, said first hopping sequence to said first sector of said second cell, said fourth hopping sequence to said first sector of said third cell, and said third hopping sequence to said first sector of said fourth cell; and adding, in response to a further increase in said traffic load, said third and fourth hopping sequences to said first sectors of said first and second cells, and said first and second hopping sequences to said first sectors of said third and fourth cells. - View Dependent Claims (14)
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15. A method of dynamic frequency reuse in a communication system having a plurality of cells with each cell having a plurality of sectors, said method comprising:
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allocating a first channel to a first sector of a first cell, and a second channel to a first sector of a second cell, a third channel to a first sector of a third cell, and a fourth channel to a first sector of a fourth cell; adding, in response to an increase in a traffic load, said second channel to said first sector of said first cell, said first channel to said first sector of said second cell, said fourth channel to said first sector of said third cell, and said third channel to said first sector of said fourth cell; and adding, in response to a further increase in said traffic load, said third and fourth channels to said first sectors of said first and second cells, and said first and second channels to said first sectors of said third and fourth cells. - View Dependent Claims (16, 17)
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18. A communication system having a plurality of cells, each cell having a plurality of sectors, said communication system having:
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a first frequency reuse pattern assigned to a first sector of each of a first cell and a second cell of said plurality of cells; and a second frequency reuse pattern assigned to a second sector of each of said first and second cells. - View Dependent Claims (19, 20, 21)
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Specification