Radio transceiver with transmission level control
First Claim
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1. A radio transceiver comprising:
- an amplifier for amplifying a transmitting signal at a variable transmitting output power level;
transmitting power detecting means for detecting the transmitting output power level of said amplified transmitting signal;
receiver means including means for receiving and for outputting transmitting output power level information contained in a received signal, which designates a specified transmitting output power level within a prescribed tolerance range;
level conversion means for outputting a conversion signal designating a transmitting output power level modified from said specified transmitting output power level but within said prescribed tolerance range;
control means responsive to said transmitting output power level information and said conversion signal for outputting a transmitting output power selection signal corresponding to said specified transmitting output power level designated by said level information as modified by said level conversion signal; and
transmitting power control means responsive to said transmitting output power selection signal and said detected transmitting output power level for setting the amplification factor of said amplifier to control the transmitting output power of said transceiver at the power level specified by said transmitting output power selection signal outputted by said control means.
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Abstract
A radio transceiver includes a control section for setting a transmitting output level higher or lower than a prescribed output level within a tolerance range, in response to a signal from a level conversion circuit. The level conversion circuit may designate a lower transmitting output level to reduce power consumption, and may designate a higher transmitting output level in the presence of high noise levels.
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Citations
15 Claims
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1. A radio transceiver comprising:
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an amplifier for amplifying a transmitting signal at a variable transmitting output power level; transmitting power detecting means for detecting the transmitting output power level of said amplified transmitting signal; receiver means including means for receiving and for outputting transmitting output power level information contained in a received signal, which designates a specified transmitting output power level within a prescribed tolerance range; level conversion means for outputting a conversion signal designating a transmitting output power level modified from said specified transmitting output power level but within said prescribed tolerance range; control means responsive to said transmitting output power level information and said conversion signal for outputting a transmitting output power selection signal corresponding to said specified transmitting output power level designated by said level information as modified by said level conversion signal; and transmitting power control means responsive to said transmitting output power selection signal and said detected transmitting output power level for setting the amplification factor of said amplifier to control the transmitting output power of said transceiver at the power level specified by said transmitting output power selection signal outputted by said control means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification