TRANSMISSION POWER CONTROL METHOD AND SYSTEM
First Claim
1. A method of controlling a transmitting power for a terminal device, comprising the steps of:
- (A) broadcasting a plurality of transmitting power level (TPL) messages, each of which represents a respective TPL and the respective TPLs are different from one another, wherein each of the plurality of TPL messages is broadcasted at the respective TPL thereof; and
(B) setting a TPL for the terminal device at a minimum one of the TPLs represented by the TPL messages received by the terminal device.
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Accused Products
Abstract
A transmitting power level control method and system are provided, whereby the power of a terminal device in a wireless sensor network is saved and the lifetime thereof is extended. The control method includes the steps of: (A) broadcasting a plurality of transmitting power level (TPL) messages, each of which represents a respective TPL and the respective TPLs are different from one another, wherein each of the plurality of TPL messages is broadcasted at the respective TPL thereof; and (B) setting a TPL for the terminal device at a minimum one of the TPLs represented by the TPL messages received by the terminal device.
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Citations
20 Claims
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1. A method of controlling a transmitting power for a terminal device, comprising the steps of:
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(A) broadcasting a plurality of transmitting power level (TPL) messages, each of which represents a respective TPL and the respective TPLs are different from one another, wherein each of the plurality of TPL messages is broadcasted at the respective TPL thereof; and (B) setting a TPL for the terminal device at a minimum one of the TPLs represented by the TPL messages received by the terminal device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for controlling a transmitting power, comprising:
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a terminal device transmitting a detecting message and having a transmitting power level (TPL); and a cluster head receiving the detecting message and broadcasting a plurality of TPL messages, each of which represents a respective TPL and is broadcasted at the respective TPL thereof, wherein the respective TPLs are different from one another, the terminal device receives the plurality of TPL messages and the TPL for the terminal device is set at a minimum one of the TPLs represented by the received TPL messages. - View Dependent Claims (10, 11, 12, 13)
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14. A method of adjusting a transmitting power for a detecting device, comprising the steps of:
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(A) determining a successful message transmission ratio (SMTR) of the detecting device; and (B) comparing the SMTR with a threshold value, and adjusting a transmitting power level (TPL) of the detecting device according to a comparing result. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification