Transmission power determination method, communication device and program
First Claim
1. A method for determining an acceptable transmission power for a second communication service making secondary usage of a spectrum assigned to a first communication service, comprising the steps of:
- determining the acceptable transmission power based on an interference level or a noise level in the first communication service, and a path loss on a communication path about one or more secondary usage node that transmits a radio signal of the second communication service; and
if two or more second communication services exist in the same cell, distributing the transmission power among the two or more second communication services evenly.
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Accused Products
Abstract
An electronic device comprising circuitry that controls transmitting signals through a first communication link toward a base station or a second communication link toward a mobile station. The second communication link uses an uplink resource of the first communication link. The circuity determines transmission power for the second communication link based on a first parameter and a second parameter. The first parameter indicates a signal level, a power level, or a noise level in the first communication link. The second parameter corresponds to path loss information for the first communication link.
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Citations
15 Claims
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1. A method for determining an acceptable transmission power for a second communication service making secondary usage of a spectrum assigned to a first communication service, comprising the steps of:
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determining the acceptable transmission power based on an interference level or a noise level in the first communication service, and a path loss on a communication path about one or more secondary usage node that transmits a radio signal of the second communication service; and if two or more second communication services exist in the same cell, distributing the transmission power among the two or more second communication services evenly. - View Dependent Claims (2, 3, 4, 5)
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6. A method for determining an acceptable transmission power for a second communication service making secondary usage of a spectrum assigned to a first communication service, comprising the steps of:
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determining the acceptable transmission power based on an interference level or a noise level in the first communication service, and a path loss on a communication path about one or more secondary usage node that transmits a radio signal of the second communication service; and if two or more second communication services exist in the same cell, distributing the transmission power among the two or more second communication services depending on a distance between a secondary usage node of the second communication service and a first node of the first communication service. - View Dependent Claims (7, 8, 9, 10)
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11. A method for determining an acceptable transmission power for a second communication service making secondary usage of a spectrum assigned to a first communication service, comprising the step of:
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determining the acceptable transmission power based on an interference level or a noise level in the first communication service, and a path loss on a communication path about one or more secondary usage node that transmits a radio signal of the second communication service; and if two or more second communication services exist in the same cell, distributing the transmission power among the two or more second communication services by counting in a margin for reducing a possibility of causing interference on a first node of the first communication service. - View Dependent Claims (12, 13, 14, 15)
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Specification