METHOD FOR CONTROLLING INTERFERENCE IN FEMTO CELL DEPLOYMENTS
First Claim
1. A method of reducing interference between a femto cell and a macro cell in a wireless communication network, the method comprising:
- identifying a plurality of preselected wireless signal carriers based on a predefined geographical area;
measuring initial power levels for the wireless signal carriers provided in the predefined geographical area;
selecting one of the wireless signal carriers based on predefined criteria associated with the measured initial power level; and
adjusting a transmission power level of a femto transmitter based on a communication placed to a mobile terminal.
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Accused Products
Abstract
A method and system provide a plurality of femto cells that are deployed within a macro cell of cellular network. The femto cells improve cellular service inside structures, such as residential and commercial structures. Femto base stations convert signals between an airlink-interface and core network to enable data communication between the mobile terminal and an access network to occur through the Internet and a public switched telephone network. The femto base stations are independent of each other and the macro cell. The method and system provide the femto base stations with interference awareness and mitigation techniques to minimize interference with the cellular network.
77 Citations
20 Claims
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1. A method of reducing interference between a femto cell and a macro cell in a wireless communication network, the method comprising:
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identifying a plurality of preselected wireless signal carriers based on a predefined geographical area; measuring initial power levels for the wireless signal carriers provided in the predefined geographical area; selecting one of the wireless signal carriers based on predefined criteria associated with the measured initial power level; and adjusting a transmission power level of a femto transmitter based on a communication placed to a mobile terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for reducing interference between a femto cell and a macro cell in a wireless communication network, the system comprising:
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a carrier selection module, the carrier selection module; identifying a plurality of preselected wireless signal carriers based on a predefined geographical area; measuring initial power levels for the wireless signal carriers provided in the predefined geographical area; and selecting one of the wireless signal carriers based on predefined criteria associated with the measured initial power level; and a fine tuning module, the fine tuning module adjusting a transmission power level of a femto transmitter based on a communication sent to a mobile terminal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification