Method and system using overlapping frequency bands in a hybrid frequency reuse plan
First Claim
1. A method of frequency usage in a wireless telecommunications network having a plurality of wireless coverage areas, said method comprising:
- allocating a first frequency band in said wireless telecommunications network for spread spectrum wireless communication with mobile stations operating in a first wireless coverage area;
allocating a second frequency band in said wireless telecommunications network for spread spectrum wireless communication with mobile stations operating in a second wireless coverage area, wherein said second frequency band overlaps in frequency with a portion of said first frequency band; and
allocating a third frequency band in said wireless telecommunications network for spread spectrum wireless communication with mobile stations operating in said first and second wireless coverage areas, wherein said third frequency band does not overlap in frequency with any of said first and second frequency bands.
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Abstract
The wireless coverage of a wireless telecommunications network is divided into a plurality of cells, and each cell is further divided into an alpha sector, a beta sector, and a gamma sector. The alpha sectors are provided with a first frequency assignment that includes a first frequency band and a second frequency band. The beta sectors are provided with a second frequency assignment that includes the first frequency band and a third frequency band. The gamma sectors are provided with a third frequency assignment that includes the first frequency band and a fourth frequency band. The second and third frequency bands partially overlap in frequency. The third and fourth frequency bands also partially overlap in frequency. By using overlapping frequency bands, the benefits of hybrid frequency reuse may be achieved in a more spectrally efficient manner.
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Citations
19 Claims
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1. A method of frequency usage in a wireless telecommunications network having a plurality of wireless coverage areas, said method comprising:
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allocating a first frequency band in said wireless telecommunications network for spread spectrum wireless communication with mobile stations operating in a first wireless coverage area; allocating a second frequency band in said wireless telecommunications network for spread spectrum wireless communication with mobile stations operating in a second wireless coverage area, wherein said second frequency band overlaps in frequency with a portion of said first frequency band; and allocating a third frequency band in said wireless telecommunications network for spread spectrum wireless communication with mobile stations operating in said first and second wireless coverage areas, wherein said third frequency band does not overlap in frequency with any of said first and second frequency bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A base station, comprising:
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a first antenna system defining a first sector; a second antenna system defining a second sector; a third antenna system defining a third sector; and a transceiver system communicatively coupled to said first, second, and third antenna systems, wherein said transceiver system is configured for spread spectrum communications (i) through said first antenna system using a first frequency band, (ii) through said second antenna system using a second frequency band, (iii) through said third antenna system using a third frequency band, and (iv) through said first, second, and third antenna systems using a fourth frequency band, wherein said first and second frequency bands partially overlap in frequency, said second and third frequency bands partially overlap in frequency, and said fourth frequency band does not overlap in frequency with any of said first, second, and third frequency bands. - View Dependent Claims (14, 15, 16)
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17. A method of frequency usage for a plurality of cells of a wireless telecommunications network, wherein each of said cells includes an alpha sector, a beta sector, and a gamma sector, said method comprising:
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said wireless telecommunications network using a first frequency assignment for spread spectrum communication in alpha sectors, wherein said first frequency assignment includes a first frequency band and a second frequency band; said wireless telecommunications network using a second frequency assignment for spread spectrum communication in beta sectors, wherein said second frequency assignment includes said first frequency band and a third frequency band; and said wireless telecommunications network using a third frequency assignment for spread spectrum communication in gamma sectors, wherein said third frequency assignment includes said first frequency band and a fourth frequency band, wherein said second and third frequency bands partially overlap in frequency, said third and fourth frequency bands partially overlap in frequency, and said first frequency band does not overlap in frequency with any of said second, third and fourth frequency bands. - View Dependent Claims (18, 19)
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Specification